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HomeMy WebLinkAbout6801_OrangeCoNorthMSWLF_November2023GWMR_FID1831892_20240312Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Sampling Event 60 Groundwater Monitoring Program Results of Sampling and Analysis November 20, to November 22, 2023 Submitted to: Compliance Unit, NCDEQ Solid Waste Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Orange County Solid Waste Management (North Facility) Permit No. 68-01 TRC Project No. 558027.0000.0000 Prepared For: Orange County Solid Waste Management Post Office Box 17177 Chapel Hill, North Carolina 27516 Prepared By: TRC Companies 114 Edinburgh South Drive, Suite 200 Cary, North Carolina, 27511 Prepared by: Sean Jarvah Environmental Specialist Reviewed and Approved by: WELL ID CAS Number PARAMETER RESULT UNITS QUALIFIER METHOD MDL MRL REGULATORY PROTECTION STANDARD SOURCE ANALYSIS* 6801-MW23-20231120 75-34-3 1,1-Dichloroethane 7.0 µg/L EPA 8260D NR 1.0 6.0 2L Impact from landfill; >2L std 6801-MW15-20231121 106-46-7 1,4-Dichlorobenzene 6.7 µg/L EPA 8260D NR 1.0 6.0 2L Impact from landfill; >2L std 6801-MW7R-20231120 123-91-1 1,4-Dioxane 7.5 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW14A-20231121 123-91-1 1,4-Dioxane 136 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW14B-20231121 123-91-1 1,4-Dioxane 170 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW15-20231121 123-91-1 1,4-Dioxane 84.1 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW16-20231120 123-91-1 1,4-Dioxane 11.7 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW20-20231120 123-91-1 1,4-Dioxane 222 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW21D-20231120 123-91-1 1,4-Dioxane 13.7 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW21S-20231120 123-91-1 1,4-Dioxane 22.3 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW22-20231120 123-91-1 1,4-Dioxane 78.8 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW23-20231120 123-91-1 1,4-Dioxane 49.5 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW24-20231120 123-91-1 1,4-Dioxane 26.4 µg/L EPA 8260D NR 2.0 3.0 2L Impact from landfill; >2L std 6801-MW14B-20231121 71-43-2 Benzene 1.2 µg/L EPA 8260D NR 1.0 1.0 2L Impact from landfill; >2L std 6801-MW20-20231120 71-43-2 Benzene 4.0 µg/L EPA 8260D NR 1.0 1.0 2L Impact from landfill; >2L std 6801-MW14B-20231121 75-01-4 Vinyl Chloride 1.6 µg/L EPA 8260D NR 1.0 0.03 2L Impact from landfill; >2L std 6801-MW15-20231121 75-01-4 Vinyl Chloride 6.2 µg/L EPA 8260D NR 1.0 0.03 2L Impact from landfill; >2L std 6801-MW23-20231120 75-01-4 Vinyl Chloride 2.6 µg/L EPA 8260D NR 1.0 0.03 2L Impact from landfill; >2L std 6801-MW14B-20231121 7440-38-2 Arsenic 15.7 µg/L EPA 6010D NR 10 15.66 FBAC Not a landfill impact;>MRL; >2L std, and >FBAC of 15.66 ug/l, ASD approved 09-02-11 6801-MW21S-20231120 7440-47-3 Chromium 14.9 µg/L EPA 6010D NR 5 10 2L Landfill impact; >2L std; >FBAC of 3.228 ug/l 6801-MW14A-20231121 7440-48-4 Cobalt 7.5 µg/L EPA 6010D NR 5 2.15 FBAC Not Landfill impact; >MRL; >2L std, and >FBAC of 2.15 ug/l; ASD approved 09-26-11 6801-MW14B-20231121 7440-48-4 Cobalt 17.1 µg/L EPA 6010D NR 5 2.15 FBAC Not Landfill impact; >MRL; >2L std, and >FBAC of 2.15 ug/l; ASD approved 09-26-11 6801-MW15-20231121 7440-48-4 Cobalt 14.8 µg/L EPA 6010D NR 5 2.15 FBAC Not Landfill impact; >MRL; >2L std, and >FBAC of 2.15 ug/l; ASD approved 09-26-11 ORGANIC CONSTITUENTS ATTAINING OR EXCEEDING THEIR GROUNDWATER QUALITY STANDARDS INORGANIC CONSTITUENTS ATTAINING OR EXCEEDING THEIR REGULATORY PROTECTION STANDARDS [metals (total = not filtered)] CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM DATE OF SAMPLING: 11.20.23 + 11.21.23 + 11.22.23 GROUNDWATER CONSTITUENTS EXCEEDING REGULATORY PROTECTION STANDARDS Page 1 of 2 WELL ID CAS Number PARAMETER RESULT UNITS QUALIFIER METHOD MDL MRL REGULATORY PROTECTION STANDARD SOURCE ANALYSIS* ORGANIC CONSTITUENTS ATTAINING OR EXCEEDING THEIR GROUNDWATER QUALITY STANDARDS CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM DATE OF SAMPLING: 11.20.23 + 11.21.23 + 11.22.23 GROUNDWATER CONSTITUENTS EXCEEDING REGULATORY PROTECTION STANDARDS 6801-MW21D-20231120 7439-97-6 Mercury 1.6 µg/L EPA 7470A NR 0.20 1.0 2L Possible landill impact; >MRL; >2L std; >FBAC of 0.805 ug/l 6801-MW21S-20231120 7439-97-6 Mercury 5.9 µg/L EPA 7470A NR 0.20 1.0 2L Possible landill impact; >MRL; >2L std; >FBAC of 0.805 ug/l 6801-MW23-20231120 7439-97-6 Mercury 5.7 µg/L EPA 7470A NR 0.20 1.0 2L Possible landill impact; >MRL; >2L std; >FBAC of 0.805 ug/l Well ID Format - facility permit number - well ID - sample collection date (yyyymmdd) GWPS/NCGQS/2L std - Groundwater Protection Standard ASD - Alternate Source Demonstration MDL - Method Detection Limit MRL - Method Reporting Limit FBAC - Facility Background Concentration (Letter requesting FBACs as regulatory protection standard submitted to NCDEQ on December 13, 2019) MCL - Maximum Contaminant Level Bold red values exceed their respective regulatory protection standard (2L, FBAC or MCL). NR - Not Reported Page 2 of 2 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis 2 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENTS Attachment 1 Figures Attachment 2 Monitoring Well Network Attachment 3 Groundwater Elevation Data Attachment 4 Groundwater Velocity Calculations Attachment 5 Summary of Organic Constituents - Organic Constituents Graphs - Organic Constituents Tables Attachment 6 Summary of Inorganic Constituents - Metals – Graphs - Tables - Byproducts of Groundwater Remediation Graphs - Byproducts of Groundwater Remediation Tables - Indicator Parameters Graphs - Indicator Parameters Tables Attachment 7 Laboratory Certificate-of-Analysis - North Monitoring Wells - Shared Monitoring Well (MW-04, MW-110S, MW-110D) - QC Samples Attachment 8 Field Data Attachment 9 Statistical Analyses Attachment 10 Quality Control Assessment - Trip Blanks - Field Blank - Duplicate Sample Attachment 11 Correspondence Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 1: Figures NORTH OLDC&D SOUTH ACTIVE C&D OFFICE PROJECT: TITLE: Orange Co Landfill.dwgFILE: PROJ. NO.: DATE: DRAWN BY: APPROVED BY: CHECKED BY:8.5x11 --- USER: kstark --- ATTACHED XREF'S: --- ATTACHED IMAGES: OC6i0_37_000_10987001_20210208_0223R0; OC6i0_37_000_10987002_20210208_0223R0 - Copy; OC6i0_37_000_10987103_20210208_0223R0; OC6i0_37_000_10987104_20210208_0223R0;DRAWING NAME: P:\2023\558027 - OCSWM North\CAD\Current Drawings\ Orange Co Landfill.dwg --- PLOT DATE: December 05, 2023 - 11:14AM --- LAYOUT: Figure 1AVersion: 2017-10-21 ORANGE COUNTY SOLID WASTE MANAGEMENT NORTH + SOUTH + ACTIVE C&D LANDFILLSCHAPEL HILL, NORTH CAROLINA VICINITY TOPOGRAPHIC MAP K STARK S JARVAH D COAKLEY NOVEMBER 2023 558027 FIGURE 1A 650 Suffolk StreetSuite 200Lowell, MA 01854Phone: 978.970.5600 1000 20000 SCALE IN FEET REFERENCE: USGS 7.5 MINUTETOPOGRAPHIC MAP CHAPEL HILL, NC 2019 NORTH OLD C&D SOUTH ACTIVE C&D Millhouse RoadPROJECT: TITLE: Orange Co Landfill.dwgFILE: PROJ. NO.: DATE: DRAWN BY: APPROVED BY: CHECKED BY:8.5x11 --- USER: kstark --- ATTACHED XREF'S: --- ATTACHED IMAGES: OC6i0_37_000_10987001_20210208_0223R0; OC6i0_37_000_10987002_20210208_0223R0; OC6i0_37_000_10987103_20210208_0223R0; OC6i0_37_000_10987104_20210208_0223R0;DRAWING NAME: P:\2023\558027 - OCSWM North\CAD\Current Drawings\ Orange Co Landfill.dwg --- PLOT DATE: December 05, 2023 - 11:05AM --- LAYOUT: Figure 1BVersion: 2017-10-21 ORANGE COUNTY SOLID WASTE MANAGEMENT NORTH + SOUTH + ACTIVE C&D LANDFILLSCHAPEL HILL, NORTH CAROLINA VICINITY AERIAL PHOTOGRAPH K STARK S JARVAH D COAKLEY NOVEMBER 2023 558027 FIGURE 1B 650 Suffolk StreetSuite 200Lowell, MA 01854Phone: 978.970.5600 1000 20000 SCALE IN FEET AERIAL PROVIDED BY NCONE MAPMrSID, 2021 MW-301 OWASA Pump Station I- 4 0Millhouse RoadFILE: PROJ. NO.: PROJECT: TITLE: DATE: DRAWN BY: APPROVED BY: Orange Co Landfill.dwg CHECKED BY: 8.5x11 --- USER: kstark --- ATTACHED XREF'S: --- ATTACHED IMAGES: OC6i0_37_000_10987001_20210208_0223R0; OC6i0_37_000_10987002_20210208_0223R0; OC6i0_37_000_10987103_20210208_0223R0; OC6i0_37_000_10987104_20210208_0223R0;DRAWING NAME: P:\2023\558027 - OCSWM North\CAD\Current Drawings\ Orange Co Landfill.dwg --- PLOT DATE: December 05, 2023 - 11:00AM --- LAYOUT: Figure 1C Version: 2017-10-21 ORANGE COUNTY SOLID WASTE MANAGEMENTCHAPEL HILL, NORTH CAROLINA PUMP STATION AND WELL LOCATION K STARK S JARVAH D COAKLEY NOVEMBER 2023 558027 FIGURE 1C 650 Suffolk StreetSuite 200Lowell, MA 01854Phone: 978.970.5600 300 6000 SCALE IN FEET LEGEND WELL LOCATION B B'A' A 485 480 475 CLOSED MSW LANDFILL CLOSED C & D LANDFILL ACTIVE C & D LANDFILL CLOSED MSW LANDFILL 490495 505 510 510 515 500 475 470 465 460 24x36 --- USER: KStark --- ATTACHED XREF'S: TOPO_07; 12109F --- ATTACHED IMAGES:DRAWING NAME: P:\2023\558027 - OCSWM North\CAD\Current Drawings\ R00592-POT MAP NOV 2023.dwg --- PLOT DATE: December 08, 2023 - 12:04PM --- LAYOUT: site mapDATE: DRAWN BY: CHECKED BY: APPROVED BY: PROJECT: PROJ. NO.: FILE NO.: TITLE: Version: 2017-10-21 ORANGE COUNTY LANDFILL GROUNDWATER MONITORING PROGRAM CHAPEL HILL, NORTH CAROLINA POTENTIOMETRIC MAP NOVEMBER 2023 558027 R00592-POT MAP NOV 2023.dwg K STARK S JARVAH D COAKLEY SHEET 1 DECEMBER 2023 114 Edinburgh South Drive, Suite 200Cary, NC 27511Phone: 919.827.0864www.trcsolutions.com Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 2: Monitoring Well Network Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 2 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 2 GROUNDWATER MONITORING NETWORK: NORTH FACILITY The monitoring well network associated with the North sanitary landfill has been revised in accordance with the approved Comprehensive Landfill Facility Water Quality Monitoring Plan (submitted September 2019) and consists of eighteen wells. Upgradient wells: • 6801-MW04 • 6801-MW110D • 6801-MW110S • 6801-MW06R (associated with closed C&D unit) Downgradient wells: • 6801-MW7R • 6801-MW14A • 6801-MW14B • 6801-MW15 • 6801-MW16 • 6801-MW17 • 6801-MW20 • 6801-MW21D2 – Installed November 2022 • 6801-MW21D • 6801-MW21S • 6801-MW22 • 6801-MW23 • 6801-MW24 • 6801-MW301 – Installed November 2022 Note. Well 6801-MW04 is hydrogeologically downgradient of the active C&D landfill and hydrogeologically upgradient of the North sanitary landfill and South sanitary landfill. Accordingly, well 6801-MW04 is designated as a downgradient well in the C&D network and is designated as a background well in the North and South sanitary landfill networks. Note. Wells 6801-MW110S and 6801-MW110D are hydrogeologically downgradient of the active C&D landfill and hydrogeologically upgradient of the North sanitary landfill and South sanitary landfill. Accordingly, wells 6801-MW110S and 6801-MW110D are designated as downgradient wells in the C&D network and are designated as background wells in the North and South sanitary landfill networks. Note. Well 6801-MW06R is upgradient of the closed C&D landfill waste management unit (which is separated from the sanitary landfill by a stream). NORTH SOUTH ACTIVE Well LANDFILL LANDFILL C&D LANDFILL 6801-MW04 X - UP X - UP X - DOWN 6801-MW06R X - UP 6801-MW07R X 6801-MW14A X 6801-MW14B X 6801-MW15 X 6801-MW16 X 6801-MW17 X 6801-MW20 X 6801-MW21D X 6801-MW21S X 6801-MW22 X 6801-MW23 X 6801-MW24 X 6801-MW101 X 6801-MW102S X 6801-MW104 X 6801-MW105 X 6801-MW106 X 6801-MW107 X 6801-MW111 X 6801-MW110D X - UP X - UP 6801-MW110S X - UP X - UP X - DOWN 6804-MW204S X 6804-MW209 X 6804-MW210D X 6804-MW211R X - UP 6801-SW1 X 6801-SW2 X leachate X UP - upgradient well location DOWN - downgradient well location CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT FACILITY: NORTH - SOUTH - C&D LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MONITORING WELL NETWORK SUMMARY total depth depth measured corrected elevation elevation drilling diameter depth to top to top well well ground measuring well type of date drilling method borehole borehole sand bentonite depth stickup depth surface point designation well completed contractor (in inches)northing easting (in inches)(in feet)(in feet)(in feet)(in feet)(in feet)(in feet)(in feet)(in feet) 6801-MW01 2MW10 04-29-76 GEC 6" rotary 809703.65 1975572.45 8 36 18 16.3 36 1.80 37.8 504.15 505.95 6801-MW04 1.75MW10 10-31-80 SME 3.25 807250.43 1974944.46 6 53 39 38 53 2.33 55.3 547.66 549.99 6801-MW05 1.75MW10 11-03-80 SME 3.25 808192.87 1974945.72 6 18.1 5 4 18.1 1.75 19.9 522.04 523.79 6801-MW06 1.75MW10 11-05-80 SME 3.25 809820.13 1976569.38 6 28.5 15 14 28.5 1.10 29.6 516.23 517.33 6801-MW06R 2MW10 06-17-08 DDI 6" air rotary 809803.36 1976567.65 6 51 23.5 5 51 2.5 53.5 511.84 514.50 6801-MW07 6801-MW07R 2MW10 05-31-07 RSD 6" air rotary 808806.89 1977111.80 6 20 8 4 20 1.92 21.9 486.79 488.71 6801-MW13 2MW15 03-12-92 ETEC 6.25 + rotary 809459.00 1976157.24 9.25 23 6 4 23 2.96 26 495.18 498.14 6801-MW14A 2MW5 03-12-92 ETEC 6.25 808951.24 1976364.48 9.25 12 6 4 12 2.88 14.9 486.46 489.34 6801-MW14B 2MW14 03-12-92 ETEC 6.25 + rotary 808945.19 1976368.22 8 31.5 16 14 31.5 2.66 34.2 486.30 488.96 6801-MW15 2MW15 03-12-92 ETEC 6.25 + rotary 808376.68 1976958.21 8 28 8 6 28 2.36 30.4 481.29 483.65 6801-MW16 2MW20 06-29-89 EMA air rotary 807986.58 1976739.73 8 35 6.5 5.5 35 2.47 37.5 480.44 482.91 6801-MW17 2MW20 06-30-89 EMA air rotary 807869.32 1976301.73 8 50 22 21 50 2.54 52.5 492.83 495.37 6801-MW18 2MW20 06-23-89 EMA air rotary 807900.44 1975645.97 8 35 6 5 35 35 502.02 6801-MW20 2MW15 09-21-94 ETEC 6" air rotary 807974.11 1975680.42 8 45 28 24 45 3.43 48.4 526.00 529.43 6801-MW21S 2MW10 03-27-00 G & C rotary 808049.25 1977137.08 8 23 11 7 23 2.14 25.1 474.70 476.84 6801-MW21D 2MW10 03-24-00 G & C 4.25 + rotary 808041.46 1977132.91 8 53 41 37 53 1.55 54.6 474.86 476.41 6801-MW21D2 2MW10 11-15-22 GEX 4.25 + rotary 808130.20 1977201.00 8 65 53 35 65.0 2.60 67.6 474.2 476.8 6801-MW22 2MW10 03-25-00 G & C 4.25 + rotary 808915.13 1976521.36 8 63 58 46 63 1.92 64.9 481.56 483.48 6801-MW23 2MW10 05-31-07 RSD 6" air rotary 808277.99 1977098.69 6 30 13 8 30 2.23 32.2 476.62 478.85 6801-MW24 2MW10 06-17-08 DDI 6" air rotary 808212.67 1977145.27 6 36 38 5 36 2.40 38.4 475.45 477.73 6801-MW301 2MW10 11-15-22 GEX 4.25 + rotary 809579.60 1978704.40 8 25 17.5 8 25 2.60 27.6 459.60 462.20 6801-MW110S 2MW15 807019.1106 1974956.856 4.25 + rotary 807019.11 1974956.86 6 40 18.0 16 40 2.33 42.3 537.91 540.24 6801-MW110D 2MW15 807026.571 1974966.137 4.25 + rotary 807026.57 1974966.14 6 70 52.5 50 70 2.30 72.3 537.88 540.18 Elevations expressed in feet above mean sea level, unless otherwise noted. R00592 ELEVmp and ELEVgs are corrected to latest survey data (surveyed May, 1999; wells MW-21S, MW-21D, MW-22 were surveyed June, 2000; wells 6801-MW7R, MW-23 surveyed July, 2007; wells 6801-MW6R and MW-24 surveyed June, 2008. MW-21D2 and MW-301 added 11-2022). Yellow highlighted wells are sampled. MW-4, MW-110S and MW-110D are also used in South and C&D landfill reporting. ABANDONED (05-31-07) WELL CONSTRUCTION DATA PROJECT: GROUNDWATER MONITORING PROGRAM CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT FACILITY: NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 3: Groundwater Elevation Data Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 3 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 3 GROUNDWATER ELEVATION DATA Static water elevations obtained during the subject sampling event indicate that well 6801-MW4 remains hydrogeologically upgradient from all municipal waste disposal units within the North Facility and upgradient from all other wells associated with the North Facility. During the subject sampling event, the elevation of the water table beneath the municipal solid waste facility was found to vary from a high of 515.89 feet above mean sea level (upgradient monitoring well 6801-MW4) to a low of 455.28 feet above mean sea level (downgradient monitoring well 6801-MW22). A comparison of static water elevations obtained during the referenced sampling event with those obtained during prior sampling events reveals no hydrogeologically significant changes in directions of groundwater flow. CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM STATIC WATER LEVELS WELL ELEVmp DTW STICKUP DTWc ELEVgs ELEVgw 6801-MW1 505.95 1.80 504.15 6801-MW4 549.99 34.10 2.33 31.77 547.66 515.89 6801-MW5 523.79 1.75 522.04 6801-MW6 517.33 1.10 516.23 6801-MW6R 514.50 23.33 2.66 20.67 511.84 491.17 6801-MW7R 488.71 10.55 1.92 8.63 486.79 478.16 6801-MW13 498.14 2.96 495.18 6801-MW14A 489.34 4.71 2.88 1.83 486.46 484.63 6801-MW14B 488.96 5.10 2.66 2.44 486.30 483.86 6801-MW15 483.65 9.10 2.36 6.74 481.29 474.55 6801-MW16 482.91 6.10 2.47 3.63 480.44 476.81 6801-MW17 495.37 9.37 2.54 6.83 492.83 486.00 6801-MW20 529.43 28.16 3.43 24.73 526.00 501.27 6801-MW21S 476.92 5.51 2.22 3.29 474.70 471.41 6801-MW21D 476.44 4.90 1.58 3.32 474.86 471.54 6801-MW21D2 476.80 5.70 2.60 3.10 474.20 471.10 6801-MW22 483.46 28.18 1.90 26.28 481.56 455.28 6801-MW23 478.85 6.62 2.23 4.39 476.62 472.23 6801-MW24 477.73 6.80 2.28 4.52 475.45 470.93 6801-MW110 D 540.18 34.95 2.30 32.65 537.88 505.23 6801-MW110 S 540.24 27.50 2.33 25.17 537.91 512.74 6801-MW301 462.20 5.90 2.60 3.30 459.60 456.30 Upgradient wells shaded yellow. Elevations expressed in feet above mean sea level. Blue shaded cells indicate data not available. MW-110S and MW-110D (South) inlcuded in all sites, not included in North historical table. MW-301 Located off site, not included in historical table. DATE: 11.20.23 + 11.21.23 + 11.22.23 DATE MW-01 MW-04 MW-05 MW-06 [old CDD]MW-06R [old CDD]MW-07 [old CDD]MW-07R [old CDD]MW-13 MW-14A MW-14B MW-15 MW-16 MW-17 MW-20 MW-21S MW-21D MW-21D2 MW-22 [old CDD]MW-23 MW-24 ELEVgs 504.15 547.66 522.04 516.23 511.84 486.84 486.79 495.18 486.46 486.30 481.29 480.44 492.83 526.00 474.70 474.86 474.20 481.56 476.62 475.45 ELEVmp 505.95 549.99 523.79 517.33 514.50 489.66 488.71 498.14 489.34 488.96 483.65 482.91 495.37 529.43 476.92 476.44 476.80 483.46 478.85 477.73 01/03/90 499.24 521.61 511.79 491.79 482.06 478.45 484.56 04/16/90 500.61 523.57 511.66 493.58 481.24 478.12 484.54 07/17/90 494.12 521.28 506.25 491.37 475.95 475.79 482.27 10/29/90 493.99 516.65 506.29 490.25 479.99 477.91 483.70 01/30/91 495.16 518.32 510.41 491.62 481.17 478.04 485.33 07/11/91 494.12 518.74 506.29 489.83 476.53 476.91 482.95 11/14/91 493.12 515.07 505.37 488.58 475.66 476.66 481.95 05/28/92 494.45 516.82 507.62 491.33 477.00 487.22 482.09 481.79 475.65 476.74 482.70 10/27/92 491.78 514.24 505.71 489.17 475.33 486.48 482.01 481.63 475.15 475.91 481.29 02/23/93 498.62 516.82 512.29 492.50 481.50 488.14 483.21 482.80 476.73 478.25 485.54 06/30/93 494.12 520.07 506.37 492.75 476.99 487.06 481.92 481.38 477.07 476.49 482.70 10/28/93 491.54 516.67 486.83 482.22 481.93 476.33 476.39 481.66 01/24/94 494.72 516.76 509.97 492.76 481.04 487.72 483.09 482.73 478.01 480.77 09/21/94 497.43 11/03/94 492.95 516.84 477.01 487.13 483.06 482.15 477.05 477.23 482.37 495.81 12/20/94 493.80 516.14 505.78 488.44 476.88 487.52 483.30 482.34 477.63 477.58 482.92 497.08 02/02/95 494.32 516.39 505.87 489.13 479.71 487.83 483.02 482.63 478.08 478.49 484.65 497.93 03/13/95 496.10 518.02 511.67 492.51 482.16 488.21 483.09 482.78 477.35 478.66 486.06 498.63 11/15/95 496.95 518.59 509.87 491.81 482.21 488.23 483.07 482.74 477.38 478.74 486.08 499.08 07/25/96 492.81 521.56 505.90 491.87 474.99 486.92 481.62 481.36 475.03 475.56 481.64 498.68 02/25/97 497.05 521.62 511.38 493.41 480.11 487.94 481.64 482.71 476.77 478.04 485.92 499.98 09/03/97 490.44 519.74 505.84 489.18 474.66 486.61 479.74 480.99 474.02 473.61 480.75 498.23 05/04/98 497.21 524.30 509.76 493.91 478.91 487.80 481.31 482.35 476.35 477.64 484.73 500.08 11/20/98 488.03 518.27 504.69 487.98 474.66 486.29 480.01 481.05 473.65 474.03 479.92 497.33 04/26/99 494.64 519.63 507.19 490.61 478.14 487.64 481.06 482.31 476.44 477.41 483.67 499.58 11/22/99 494.60 520.70 509.25 490.86 478.21 487.71 482.59 482.50 476.37 477.66 483.64 499.68 05/23/00 495.23 522.28 509.95 492.43 478.04 488.02 482.58 482.43 476.14 477.49 484.32 499.93 472.45 473.22 480.52 11/29/00 493.95 518.42 508.48 488.96 474.84 486.97 482.14 481.96 475.33 476.49 482.76 498.71 472.12 472.44 479.26 06/05/01 494.55 519.57 510.52 489.82 477.99 487.72 482.55 482.22 476.19 477.91 484.06 499.28 472.50 473.08 479.73 11/13/01 492.55 515.86 506.39 488.03 474.74 486.42 481.43 481.33 474.15 474.97 480.37 497.83 470.91 470.94 478.15 06/04/02 490.90 515.89 507.87 487.63 474.66 486.66 481.42 481.04 475.03 476.01 480.97 497.83 470.70 470.99 478.42 03/13/03 492.52 518.74 513.07 481.50 488.63 482.92 482.74 477.40 478.79 485.96 500.43 474.88 473.00 480.95 06/19/03 495.73 521.57 514.49 492.14 479.14 488.24 482.81 482.66 477.67 478.46 485.37 500.72 472.97 473.72 480.64 12/08/03 494.17 519.49 514.04 488.63 475.94 488.13 482.62 482.26 475.97 477.19 483.17 499.71 472.38 472.79 479.55 06/22/04 493.45 519.56 508.38 486.94 481.86 481.46 475.08 476.41 482.06 499.70 471.74 470.54 479.36 11/30/04 495.00 518.09 512.51 488.04 482.96 482.63 476.67 478.21 484.48 500.13 473.09 473.74 480.16 06/01/05 494.90 518.43 509.88 490.18 475.76 487.34 482.39 481.84 475.60 476.91 482.85 499.93 471.67 472.19 479.46 11/02/05 489.75 515.43 507.17 474.59 486.94 481.52 481.16 473.70 475.99 481.05 498.80 470.72 469.59 477.84 05/22/06 493.45 516.59 510.39 487.14 482.47 481.86 474.60 476.63 482.50 499.23 471.42 471.84 477.54 11/27/06 494.04 515.12 513.38 489.06 477.53 488.65 483.03 482.68 477.05 478.70 485.34 499.46 473.24 473.95 481.04 06/13/07 493.65 517.85 509.06 489.23 474.59 488.84 482.19 481.83 475.46 476.24 485.54 499.82 471.08 471.50 479.27 472.84 12/12/07 488.14 512.44 512.02 488.86 473.61 486.39 481.79 480.84 472.65 473.77 479.85 498.78 469.42 468.69 477.91 469.70 06/10/08 492.44 515.55 510.20 489.17 474.90 487.49 482.40 481.96 474.76 476.63 482.32 500.13 471.19 471.63 479.53 472.85 11/05/08 491.86 514.54 509.48 486.62 474.21 487.49 482.71 482.36 475.74 476.90 482.04 506.04 472.60 471.41 476.74 473.15 471.87 05/19/09 517.14 512.14 482.86 482.34 475.92 476.11 483.42 500.40 471.72 472.23 480.06 473.83 471.11 11/18/09 493.75 514.85 511.55 486.20 476.31 488.40 483.11 482.78 476.62 478.21 484.55 500.12 472.76 473.09 480.34 474.31 472.51 06/21/10 518.72 510.98 488.92 475.41 482.74 482.78 475.69 476.71 483.12 499.50 470.90 471.69 479.88 473.20 471.87 11/18/10 515.04 509.85 486.89 473.11 482.91 482.64 475.08 476.24 482.32 499.38 471.44 471.51 479.62 472.32 471.08 CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF STATIC WATER ELEVATIONS DATE MW-01 MW-04 MW-05 MW-06 [old CDD]MW-06R [old CDD]MW-07 [old CDD]MW-07R [old CDD]MW-13 MW-14A MW-14B MW-15 MW-16 MW-17 MW-20 MW-21S MW-21D MW-21D2 MW-22 [old CDD]MW-23 MW-24 ELEVgs 504.15 547.66 522.04 516.23 511.84 486.84 486.79 495.18 486.46 486.30 481.29 480.44 492.83 526.00 474.70 474.86 474.20 481.56 476.62 475.45 ELEVmp 505.95 549.99 523.79 517.33 514.50 489.66 488.71 498.14 489.34 488.96 483.65 482.91 495.37 529.43 476.92 476.44 476.80 483.46 478.85 477.73 CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF STATIC WATER ELEVATIONS 05/23/11 516.54 511.91 487.13 475.01 482.54 482.82 476.13 477.11 483.28 500.28 471.69 472.01 480.21 473.45 472.09 11/15/11 513.17 485.89 471.75 482.34 482.42 473.90 475.50 481.76 499.28 470.37 469.54 478.81 471.18 469.99 06/05/12 516.81 487.48 475.51 483.24 482.92 476.27 477.10 483.04 500.33 471.68 471.98 480.32 473.55 472.13 11/12/12 515.97 485.97 474.16 483.04 483.03 476.03 476.98 482.81 500.31 471.89 472.12 480.34 473.12 471.75 05/13/13 517.75 488.27 477.51 483.77 483.28 476.74 477.88 484.41 500.83 472.18 473.39 480.84 475.01 473.15 08/21/13 472.16 473.10 475.46 473.09 11/11/13 518.54 489.28 474.81 483.38 483.12 475.76 476.94 482.99 500.66 471.74 472.20 480.40 473.35 472.23 02/10/14 472.31 473.41 475.07 473.78 05/12/14 521.11 490.92 479.05 483.62 482.04 476.37 477.77 484.67 501.53 470.97 473.12 480.86 475.12 473.65 08/18/14 470.86 471.69 472.93 471.47 11/11/14 516.49 486.36 472.91 482.94 482.76 474.35 475.86 482.39 499.86 471.17 471.09 479.38 471.88 470.53 05/12/15 520.04 490.60 477.86 483.56 483.11 476.38 477.46 484.42 501.20 471.46 472.92 480.81 474.80 473.18 11/10/15 517.67 488.96 478.41 484.00 483.64 477.70 479.29 486.35 501.48 473.86 474.52 481.36 476.12 474.65 05/18/16 521.95 491.94 477.91 483.99 483.58 476.60 477.79 485.33 501.65 472.27 473.42 481.06 474.97 473.53 11/15/16 519.09 490.08 475.59 483.49 483.31 475.79 476.99 483.35 501.01 471.86 472.24 480.61 473.65 472.23 05/30/17 518.69 490.33 478.31 483.84 483.34 476.50 477.96 485.02 501.38 472.11 473.29 480.81 475.10 473.53 11/14/17 515.54 486.36 472.61 482.44 482.26 473.83 475.59 482.74 499.81 470.46 470.84 478.91 471.38 470.20 05/14/18 517.84 490.14 476.76 483.70 483.43 476.27 477.31 484.50 501.11 471.10 472.49 480.86 474.15 472.60 11/12/18 518.94 491.12 479.54 484.08 483.81 478.40 479.86 487.47 501.88 474.06 476.24 481.36 475.90 474.56 05/20/19 523.13 493.48 477.11 483.74 483.74 476.03 477.26 485.91 501.81 471.51 472.69 481.01 474.15 472.78 11/19/19 517.03 487.55 473.55 484.14 483.74 474.40 476.36 484.17 500.60 471.59 471.41 480.31 471.88 470.76 05/19/20 519.55 491.35 478.66 484.49 484.04 478.20 478.21 486.72 501.79 473.80 474.14 481.31 475.37 473.58 11/16/20 518.84 490.82 478.34 484.54 484.56 477.13 478.49 487.07 501.38 473.80 474.14 481.31 475.37 473.58 05/17/21 521.89 492.54 476.11 484.19 484.14 475.83 477.01 485.25 501.81 471.61 472.17 481.01 473.90 472.42 11/23/21 517.73 489.05 474.01 484.39 484.26 475.53 477.01 484.54 501.51 471.47 472.09 480.71 472.98 471.63 05/23/22 518.76 490.73 475.31 484.19 484.12 475.65 477.56 485.57 501.63 471.07 472.02 480.71 473.38 472.03 11/07/22 515.77 488.27 473.41 484.29 484.21 475.45 476.89 483.57 500.99 471.39 471.77 480.66 472.6 471.34 05/02/23 519.27 490.73 475.31 484.19 484.12 475.65 477.56 485.57 501.63 471.07 472.02 473.09 480.71 473.38 472.03 11/20/23 515.89 491.17 478.16 484.63 483.86 474.55 476.81 486.00 501.27 471.41 471.54 471.10 455.28 472.23 470.93 DATE MW-01 MW-04 MW-05 MW-06 [old CDD]MW-06R [old CDD]MW-07 [old CDD]MW-07R [old CDD]MW-13 MW-14A MW-14B MW-15 MW-16 MW-17 MW-20 MW-21S MW-21D MW-21D2 MW-22 [old CDD]MW-23 MW-24 MIN 488.03 512.44 504.69 487.63 485.89 474.59 471.75 486.29 479.74 480.84 472.65 473.61 479.85 495.81 469.42 468.69 471.10 455.28 469.70 469.99 MAX 500.61 524.30 514.49 493.91 493.48 482.21 479.54 488.84 484.63 484.56 478.40 479.86 487.47 506.04 474.88 476.24 473.09 481.36 476.12 474.65 MEDIAN 494.08 518.09 509.86 490.25 489.17 477.53 475.41 487.52 482.93 482.65 476.03 477.11 483.64 500.08 471.68 472.19 472.10 480.33 473.45 472.18 RANGE 12.58 11.86 9.80 6.28 7.59 7.62 7.79 2.55 4.89 3.72 5.75 6.25 7.62 10.23 5.46 7.55 1.99 26.08 6.42 4.66 STD 2.48 2.45 2.62 1.78 2.12 2.54 2.08 0.69 1.03 0.90 1.21 1.19 1.77 1.55 1.03 1.31 0.99 3.70 1.41 1.17 Elevations expressed in feet above mean sea level. Upgradient wells shaded yellow. All SWE data have been corrected to survey data obtained during May, 1999. ELEV-mp and ELEV-gs derived from survey performed during May, 1999. 465 470 475 480 485 490 495 500 505 510 515 520 525 530 Elevation (feet above sea level)Date ORANGE COUNTY REGIONAL SANITARY LANDFILL -NORTHSTATIC WATER ELEVATIONS MW-01 MW-04 MW-05 MW-06 [old CDD]MW-07 [old CDD]MW-13 MW-14A MW-14B MW-15 MW-16 504 506 508 510 512 514 516 518 520 522 524 526 Elevation (feet above sea level)Date ORANGE COUNTY REGIONAL SANITARY LANDFILL -NORTH STATIC WATER ELEVATIONS MW-04 MW-05 wells at upgradient (west)end of landfill 470 475 480 485 490 495 500 505 510 515 520 Elevation (feet above sea level)Date ORANGE COUNTY REGIONAL SANITARY LANDFILL -NORTHSTATIC WATER ELEVATIONS MW-05 MW-20 MW-17 MW-16 wells along south side of landfill 479.0 479.5 480.0 480.5 481.0 481.5 482.0 482.5 483.0 483.5 484.0 484.5 485.0 Elevation (feet above sea level)Date ORANGE COUNTY REGIONAL SANITARY LANDFILL -NORTH STATIC WATER ELEVATIONS MW-14A MW-14B 472 473 474 475 476 477 478 479 480 Elevation (feet above sea level)Date ORANGE COUNTY REGIONAL SANITARY LANDFILL -NORTH STATIC WATER ELEVATIONS MW-15 MW-16 wells near east end of waste unit 470 472 474 476 478 480 482 484 486 488 490 492 494 496 Elevation (feet above sea level)Date ORANGE COUNTY REGIONAL SANITARY LANDFILL -NORTH STATIC WATER ELEVATIONS MW-06 [old CDD]MW-22 [old CDD]MW-07 [old CDD]MW-07R [old CDD]MW-06R [old CDD] wells associated with old (closed) CDD waste unit Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 4: Groundwater Velocity Calculations Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 4 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 4 GROUNDWATER VELOCITY CALCULATIONS The rate of at which constituents are transported in groundwater may be conservatively estimated by the velocity of groundwater flow. We shall distinguish between the apparent Darcy groundwater flow velocity (Vd) and seepage velocity (Vs), which are given by the equations: Vd = ki and Vs = kin-1, where: Vd = Darcy velocity Vs = seepage velocity k = hydraulic conductivity i = hydraulic gradient n = porosity On June 16, 2008, Draper Aden Associates personnel performed slug tests in the following wells: 6801-MW15, 6801-MW21S, 6801-MW21D, and 6801-MW23. Monitoring well 6801-MW15 is partially screened within overburden, but mostly screened within bedrock. Monitoring wells 6801-MW21S, 6801-MW21D, and 6801-MW23 are screened within bedrock. The hydraulic conductivity values calculated from the slug test data are within the same order of magnitude for the tested wells, ranging from 6.37 x 10-4 cm/sec to 1.34 x 10-4 cm/sec. The average hydraulic conductivity is 2.91 x 10-4 cm/sec. We have used the average hydraulic conductivity value to calculate groundwater velocity. Using published information, effective porosity was estimated to be about 0.02 (unitless) for fractured (meta) basalt. Using groundwater elevations measured during the subject sampling event, the hydraulic gradient of the uppermost aquifer was calculated along the flow path from 6801-MW4 to 6801-MW21S. The average hydraulic gradient was estimated by dividing the difference between the hydraulic heads (elevation heads) in well 6801-MW4 to 6801-MW21S by the distance between those two wells (about 2,336 feet). Calculated velocities (along the selected flow path) are presented on the table at the end of this ATTACHMENT and illustrated on the accompanying graph. A comparison of groundwater velocity based upon the subject sampling event with those obtained during prior sampling events (see table) indicates that the velocity observed during the subject sampling event (286.8 feet per year) is less than the median velocity (295.0 feet per year) (along the selected flow path). Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 4 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 A review of groundwater velocity over time (see graph) indicates that velocity generally increased, between late 2011 and early 2014, but has generally oscillated around the median velocity since then (along the selected flow path). We note that the calculated groundwater velocity along a given flow path represents an average velocity along one of many potential flow paths in the uppermost aquifer underlying the area of interest. Nonetheless, the velocity estimate is believed to be reasonably representative of that area. from …… toward feet/feet meters/yr feet/yr date upgradient location upgradient SWE downgradient location downgradient SWE gradient GW velocity GW velocity 11/15/2011 6801-MW4 513.17 6801-MW21S 470.37 1.83E-02 84.1 276.0 06/05/2012 6801-MW4 516.81 6801-MW21S 471.68 1.93E-02 88.7 291.0 11/12/2012 6801-MW4 515.97 6801-MW21S 471.89 1.89E-02 86.6 284.3 05/13/2013 6801-MW4 517.75 6801-MW21S 472.18 1.95E-02 89.6 293.9 11/11/2013 6801-MW4 516.21 6801-MW21S 469.52 2.00E-02 91.8 301.1 5/12/2014 6801-MW4 521.11 6801-MW21S 470.97 2.15E-02 98.6 323.3 11/11/2014 6801-MW4 516.49 6801-MW21S 471.17 1.94E-02 89.1 292.3 5/12/2015 6801-MW4 520.04 6801-MW21S 471.46 2.08E-02 95.5 313.3 11/10/2015 6801-MW4 517.67 6801-MW21S 473.86 1.88E-02 86.1 282.5 5/18/2016 6801-MW4 521.95 6801-MW21S 472.27 2.13E-02 97.7 320.4 11/15/2016 6801-MW4 519.09 6801-MW21S 471.86 2.02E-02 92.8 304.6 5/30/2017 6801-MW4 518.69 6801-MW21S 472.11 1.99E-02 91.6 300.4 11/14/2017 6801-MW4 515.54 6801-MW21S 470.46 1.93E-02 88.6 290.7 5/14/2018 6801-MW4 517.84 6801-MW21S 471.10 2.00E-02 91.9 301.4 11/12/2018 6801-MW4 518.94 6801-MW21S 474.06 1.92E-02 88.2 289.4 5/20/2019 6801-MW4 523.13 6801-MW21S 471.51 2.21E-02 101.5 332.9 11/19/2019 6801-MW4 517.03 6801-MW21S 471.59 1.95E-02 89.3 293.0 5/19/2020 6801-MW4 519.55 6801-MW21S 473.80 1.96E-02 89.9 295.0 11/16/2020 6801-MW4 518.84 6801-MW21S 473.12 1.96E-02 89.9 294.8 5/17/2021 6801-MW4 521.89 6801-MW21S 471.61 2.15E-02 98.8 324.2 11/23/2021 6801-MW4 517.73 6801-MW21S 471.47 1.98E-02 90.9 298.3 5/23/2022 6801-MW4 518.76 6801-MW21S 471.07 2.04E-02 93.7 307.5 11/8/2022 6801-MW4 515.77 6801-MW21S 471.39 1.90E-02 87.2 286.2 5/2/2023 6801-MW4 519.27 6801-MW21S 472.67 1.99E-02 91.6 300.5 11/20/2023 6801-MW4 515.89 6801-MW21S 471.41 1.90E-02 87.4 286.8 hydraulic conductivity = 2.91E-06 meters/second distance =2,336 feet 89.9 295.0 estimated porosity =0.02 deviation from median = seconds per year = 31557600 feet per meter =3.281 -2.8% CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM GROUNDWATER VELOCITY CALCULATIONS median = 11/15/2011, 276.0 5/12/2014, 323.3 5/20/2019, 332.9 11/20/2023, 286.8 270 280 290 300 310 320 330 340 feet per yeardate measured OCSWM NORTH LANDFILL: GROUNDWATER VELOCITY median Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 5: Summary of Organic Constituents Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 5 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 5 ORGANIC CONSTITUENTS On November 20 through November 22, 2023 (sampling event 60), TRC personnel obtained groundwater samples from groundwater monitoring wells associated with the Orange County Solid Waste Management North Facility (north side of Eubanks Road). We have received copies of the certificates-of-analysis (dated December 6, 2023 and January 11, 2024). Information presented on the certificates are summarized as follows: • During event 60, the laboratory detected (>MDL) ten organic constituents: bis(2-ethylhexyl)phthalate, 1,1-dichloroethane, 1,4-dichlorobenzene, 1,4-dioxane, benzene, chlorobenzene, chloroethane, cis-1,2-dichloroethene, naphthalene, and vinyl chloride. • Of the ten organic constituents detected, the laboratory was able to quantify (>MRL) the concentrations of nine organic constituents: 1,1-dichloroethane, 1,4-dichlorobenzene, 1,4-dioxane, benzene, chlorobenzene, chloroethane, cis-1,2-dichloroethene, naphthalene, and vinyl chloride. • Of the nine organic constituents that the laboratory was able to quantify (>MRL), the reported concentrations of five organic constituents exceeded their respective current North Carolina Groundwater Quality Standards:  The reported concentration of 1,1-dichloroethane in well 6801-MW23 (7.0 µg/l) exceeded its Groundwater Quality Standard (6 µg/l).  The reported concentration of 1,4-dichlorobenzene in well 6801-MW15 (6.7 µg/l exceeded its Groundwater Quality Standard (6 µg/l).  The reported concentrations of 1,4-dioxane in wells 6801-MW7R (7.5 µg/l), 6801- MW14A (136 µg/l), 6801-MW14B (170 µg/l), 6801-MW15 (84.1 µg/l), 6801-MW16 (11.7 µg/l), 6801-MW20 (222 µg/l), 6801-MW-21S (22.3 µg/l), 6801-MW21D (13.7 µg/l), 6801-MW22 (78.8 µg/l), 6801-MW23 (49.5 µg/l), and 6801-MW24 (26.4 µg/l) exceeded its Groundwater Quality Standard (3 µg/l).  The reported concentration of benzene in wells 6801-MW14B (1.2 µg/l) and 6801-MW20 (4.0 µg/l) exceeded its Groundwater Quality Standard (1 µg/l).  The reported concentration of vinyl chloride in wells 6801-MW14B (1.6 µg/l), 6801-MW15 (6.2 µg/l), and 6801-MW23 (2.6 µg/l) exceeded its Groundwater Quality Standard (0.03 µg/l). • During event 60, surface water sample 6801-SW2 had detections of 1,4-Dioxane (15.5 µg/l). Surface water location 6801-SW-1 was dry in November 2023 and no sample was collected. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 5 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Comments. North Carolina 15A NCAC 02B establishes Water Quality Standards for Surface Waters. Such standards have not yet been established for 1,4-dioxane; however, North Carolina has established In-Stream Target Values for 1,4-dioxane under two scenarios: • Water Supply - Class WS [I-V] = 0.35 µg/liter • Fish Consumption - all water - Class C and SC = 80 µg/liter A review of the North Carolina Surface Water Classifications map indicates that Old Field Creek is not classified as a “water supply” (not Class WS). Fish Consumption standards are based on consumption of fish, including shellfish, tissue. These standards are commonly referred to as "Human Health" standards (see 15A NCAC 02B .0208). For these reasons, we consider 80 µg/liter to be the applicable threshold for evaluating concentrations of 1,4-dioxane in surface waters at this facility. Note. Results obtained from auxiliary background wells 6801-MW110S and 6801-MW110D are not included in the summary above or on the history tables for North landfill. MW-21D2 and offsite well MW-301 were installed November 2022, and are included in this report. Comments. Orange County Solid Waste Management has already characterized the nature and extent of constituents that have exceeded their respective Groundwater Quality Standards, and prepared an Assessment of Corrective Measures, Corrective Action Plan, and Corrective Action Monitoring Plan addressing such constituents (all of which were previously submitted to NCDEQ for review and approval). Future Actions. Based upon the results of the subject sampling event, the facility may continue monitoring groundwater in accordance with the current program. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 5: Organic Constituents - Graphs 0501001502002503003501,4-D Concentration (µg/L)DateCurrent and Historic 1,4-Dioxane (1,4-D) Concentrations - North FacilityMW-14AMW-14BMW-20MW-21DMW-21SMW-23MW-24NC 2L Standard 050100150200250cis-1,2-DCE Concentration (µg/L)DateCurrent and Historic cis-1,2-Dichloroethene (cis-1,2-DCE) Concentrations - North FacilityMW-15MW-16MW-21DMW-21SMW-23MW-24NC 2L StandardInjection 3/29/2011Injection 9/28/2011Injection 4/14/2012Injection 9/13/2012 010203040506070801,1-DCA Concentration (µg/L)DateCurrent and Historic 1,1-Dichloroethane (1,1-DCA) Concentrations - North FacilityMW-15MW-16MW-21DMW-21SMW-23MW-24NC 2L StandardInjection 3/29/2011Injection 9/28/2011Injection 4/14/2012Injection 9/13/2012 0123456PCE Concentration (µg/L)DateCurrent and Historic Tetrachloroethene (PCE) Concentrations - North FacilityMW-21DMW-21SMW-23MW-24NC 2L StandardInjection 3/29/2011Injection 9/28/2011Injection 4/14/2012Injection 9/13/2012 024681012VC Concentration (µg/L)DateCurrent and Historic Vinyl Chloride (VC) Concentrations - North FacilityMW-21DMW-21SMW-23MW-24NC 2L StandardInjection 3/29/2011Injection 9/28/2011Injection 4/14/2012Injection 9/13/2012 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 5: Organic Constituents - Tables acetone04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 6000 (2L Std)06/30/932L Std = 700 (pre- Jan. 2010)11/04/942L Std = 6000 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/08<1.2412 J<1.2<1.2<1.2<1.21.2100ic, cc11/05/08<1.2106 S<1.2<1.2<1.2<1.21.210005/19/09<1.561 J<1.5<1.5<1.5<1.51.510011/18/09<3300<3<3<3<3310006/21/10<1.5<1.514 J<1.5<1.5<1.51.510011/18/10<1.516 J<1.5<1.5<1.5<1.51.5100injection event (03-29-11)05/23/11<1.2120<1.2<1.2<1.2<1.21.210008/23/111.2100injection event (09-28-11)11/15/11<1.2<1.2<1.2<1.2<1.21.210002/21/121.2100injection event (04-14-12)06/05/12<1.2<1.2<1.2<1.2<1.21.210010/09/121.2100injection event (09-13-12)11/12/12<1.2<1.2<1.2<1.2<1.21.210002/18/131.210005/13/13<1.2<1.2<1.2<1.2<1.21.210008/21/131.210011/11/13<1.2<1.2<1.2<1.2<1.21.210002/10/141.210005/12/14<1.2<1.2<1.2<1.2<1.21.210008/18/141.210011/11/14<1.2<1.2<1.2<1.2<1.21.210002/23/151.210005/12/15<1.2<1.2<1.2<1.2<1.21.210008/24/151.210011/10/15<1.2<1.2<1.2<1.2<1.21.210002/22/161.210005/19/16<1.2<1.2<1.2<1.2<1.21.210008/23/1611/16/16<10<10<10<1023 J1010002/22/171010005/30/17<10<10<10<10<101010008/22/171010011/14/17<10<10<10<10<101010002/18/181010005/14/18<10<10<10<10<101010008/24/1811/12/18<10<10<10<10<10102002/14/19102005/20/19<10<10<10<10<10102008/27/19102011/19/19<10<10<10<10<10102002/24/20102005/19/20<10<10<10<10<10102008/18/2011/16/20<10<10<10<10<10102002/16/211020t05/19/21<10<10<10<10<10102011/23/21<10<10<10<10<10102005/23/22<10<10<10<10<10102011/07/22<10<10<10<10<10102005/03/23<10<10<10<10<10102011/20/23<25<25<25<25<2525CLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAMW-6RMW-7MW-7RMW-13MW-14A MW-14BConstituentSample Date MW-1MW-4HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSMDLMRLQA/QCMW-5MW-6PROJECT: GROUNDWATER MONITORING PROGRAM acetone04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 6000 (2L Std)06/30/932L Std = 700 (pre- Jan. 2010)11/04/942L Std = 6000 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/08<1.22 J<1.2<1.2<1.2<1.2<1.2<1.28.1 J1.2100ic, cc11/05/08<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210005/19/09<1.5<1.5<1.512 J<1.5<1.5<1.5<1.5<1.51.510011/18/09<3<3<39.5 J<31.5 J<3<3<3310006/21/10<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510011/18/10<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.5100injection event (03-29-11)05/23/11<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210008/23/11<1.2<1.2<1.2<1.21.2100injection event (09-28-11)11/15/11<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210002/21/12<1.2<1.2<1.2<1.21.2100injection event (04-14-12)06/05/12<1.2<1.2<1.24.7 J<1.2<1.2<1.2<1.2<1.21.210010/09/12<1.2<1.2<1.2<1.21.2100injection event (09-13-12)11/12/12<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210002/18/13<1.2<1.2<1.2<1.21.210005/13/13<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210008/21/13<0.12<1.2<1.2<1.21.210011/11/13<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210002/10/14<1.2<1.2<1.2<1.21.210005/12/14<1.2<1.2<1.25.7 J<1.2<1.2<1.2<1.21.210008/18/14<1.2<1.2<1.2<1.21.210011/11/14<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210002/23/15<1.2<1.2<1.2<1.21.210005/12/15<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210008/24/15<1.2<1.2<1.2<1.21.210011/10/15<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210002/22/16<1.2<1.2<1.2<1.21.210005/19/16<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.2<1.21.210008/23/1611/16/16<10<10<10<10<10<10<10<10<101010002/22/17<10<10<10<101010005/30/17<10<10<10<10<10<10<10<10<101010008/22/17<10<10<10<101010011/14/17<10<10<10<10<10<10<10<10<101010002/18/18<10<10<10<101010005/14/18<10<10<10<10<10<10<10<10<101010008/24/18<10<10<10<10102011/12/18<10<10<10<10<10<10<10<10<10102002/14/19<10<10<10<10102005/20/19<10<10<10<10<10<10<10<10<10102008/27/19<10<10<10<10102011/19/19<10<10<10<10<10<10<10<10<10102002/24/20<10<10<10<10102005/19/20<10<10<10<10<10<10<10<10<10102008/18/20<10<10<10<10102011/16/20<10<10<10<10<10<10<10<10<10102002/16/21<10<10<10<101020t05/19/21<10<10<10<10<10<10<10<10<10102011/23/21<10<10<10<10<10<10<10<10<10102005/23/22<10<10<10<10<10<10<10<10<10102011/07/22<10<10<10<10<10<10<10<10<10102005/03/23<10<10<10<10<10<10<10<10<10<10<10102011/20/23<25<25<25<25<25<25<25<25<25<25<2525MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAConstituentSample Date MW-15MW-21d2HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSMW-22PROJECT: GROUNDWATER MONITORING PROGRAMMW-301 benzene04/17/90<5.0<5.0<5.0<5.0<5.0MCL = 507/11/91<5.0<5.0<5.0<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0NCGQS = 1 (2L Std)06/30/93<5.0<5.0<5.0<5.0<5.0<5.0<5.011/04/94<5.0<5.0<5.0<5.0<5.0<5.0md12/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0 <5.0 <5.0<5.0<5.0 11/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0is07/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0cc06/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.0ht06/18/03<5.0<5.0<5.0<5.0<5.0ic, cc, ss12/08/03<5.0<5.0<5.0ic, cc06/22/04<5.0<5.0<5.0ic, cc11/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.1<0.1<0.11.10.11.012/12/07<0.1<0.1<0.10.9 J0.11.006/17/08<0.10.7 J<0.11 J<0.11 J0.11.0ic, cc11/05/08<0.10.8 J<0.1<0.11 J0.6 J0.11.005/19/09<0.21.1<0.2<0.20.63 J1.30.21.011/18/09<0.41.2<0.4<0.4<0.41.30.41.006/21/10<0.05<0.050.87 J<0.05<0.05<0.050.051.011/18/10<0.051.6<0.05<0.05<0.051.20.21.0injection event (03-29-11)05/23/11<0.68<0.68<0.68<0.68<0.680.98 J0.681.008/23/110.681.0injection event (09-28-11)11/15/11<0.68<0.68<0.68<0.681.20.681.002/21/120.151.0injection event (04-14-12)06/05/12<0.15<0.15<0.15<0.150.73 J0.151.010/09/120.151.0injection event (09-13-12)11/12/12<0.15<0.15<0.15<0.151.20.151.002/18/130.151.005/13/13<0.15<0.15<0.15<0.151.20.151.008/21/130.151.011/11/13<0.150.43 J<0.15<0.150.85 J0.151.002/10/140.151.005/12/14<0.15<0.15<0.15<0.150.78 J0.151.008/18/140.151.011/11/14<0.15<0.15<0.15<0.151.00.151.002/23/150.151.005/12/15<0.15<0.15<0.15<0.151.20.151.008/24/150.151.011/10/15<0.15<0.15<0.15<0.151.20.151.002/22/160.151.005/19/16<0.15<0.15<0.151.10.151.008/23/1611/16/16<0.15<0.15<0.15<0.151.20.151.002/22/170.151.005/30/17<0.15<0.15<0.15<0.151.30.151.008/22/170.151.011/14/17<0.15<0.15<0.15<0.151.30.151.002/18/180.151.005/14/18<0.15<0.15<0.151.2<0.150.151.008/24/1811/12/18<0.15<0.15<0.151.2<0.150.151.002/14/190.151.005/20/19<0.15<0.15<0.151.2<0.150.151.008/27/190.151.011/19/19<0.15<0.15<0.151.3<0.150.151.002/24/200.151.005/19/20<0.15<0.15<0.15<0.15<0.150.151.008/18/2011/16/20<0.15<0.15<0.151.4<0.150.151.002/16/210.151.005/19/21<0.15<0.15<0.151.7<0.150.151.011/23/21<0.15<0.15<0.15<0.15<0.150.151.005/23/22<0.15<0.15<0.151.4<0.150.151.011/07/22<0.15 <0.15 <0.15 <0.15 <0.15 0.151.005/03/23<0.15 <0.15 <0.15 <0.15 1.30.151.011/20/23<1.0<1.0<1.0<1.01.21.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BMW-5PROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA benzene04/17/90<5.0<5.0MCL = 507/11/91<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0NCGQS = 1 (2L Std)06/30/93<5.0<5.0<5.011/04/94<5.0<5.0<5.012md12/20/94<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.01303/13/95<5.0<5.0<5.0811/15/95<5.0<5.0<5.08 Jis07/25/96<5.0<5.0<5.0802/25/97<5.0<5.0<5.0909/03/97<5.0<5.0<5.0805/04/98<5.0<5.0<5.0611/02/98<5.0<5.0<5.0604/26/99<5.0<5.0<5.0711/22/99<5.0<5.0<5.0605/23/00<5.0<5.0<5.07<5.0<5.0<5.011/29/00<5.0<5.0<5.07<5.0<5.0<5.006/05/01<5.0<5.0<5.07<5.0<5.0<5.011/13/01<5.0<5.0<5.07 J<5.0<5.0<5.0cc06/04/02<5.0<5.0<5.06<5.0<5.0<5.003/12/03<5.0<5.0<5.06 J<5.0<5.0<5.0ht06/18/03<5.0<5.0<5.06 J<5.0<5.0<5.0ic, cc, ss12/08/03<5.0<5.0<5.05 J<5.0<5.0<5.0ic, cc06/22/04<5.0<5.0<5.06 J<5.0<5.0<5.0ic, cc11/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.07<5.0<5.0<5.005/22/06<5.0<5.0<5.06<5.0<5.0<5.011/27/06<5.0<5.0<5.05.5<5.0<5.0<5.006/12/071.40.5 J<0.15.6<0.1<0.1<0.1<0.10.11.012/12/071.30.4 J<0.14.4<0.1<0.10.5 J0.4 J0.11.006/17/081.2 J0.6 J<0.15 J<0.1<0.10.3 J<0.1<0.10.11.0ic, cc11/05/081.40.4 J<0.15.20.2 J<0.1<0.10.3 J0.2 J0.11.005/19/091.60.67 J<0.25.1<0.2<0.20.49 J<0.2<0.20.21.011/18/091.40.67 J<0.45.2<0.4<0.40.71 J0.47 J<0.40.41.006/21/100.8 J<0.05<0.055.2<0.05<0.05<0.05<0.05<0.050.051.011/18/1020.69 J<0.055.80.4 J<0.050.69 J0.52 J<0.050.21.0injection event (03-29-11)05/23/111.7<0.68<0.684.4<0.68<0.68<0.68<0.68<0.680.681.008/23/11<0.68<0.68<0.68<0.680.681.0injection event (09-28-11)11/15/111.5<0.68<0.685.2<0.68<0.680.74 J<0.68<0.680.681.002/21/12<0.15<0.15<0.15<0.150.151.0injection event (04-14-12)06/05/121.1<0.15<0.154.3<0.15<0.150.5 J<0.15<0.150.151.010/09/12<0.15<0.15<0.15<0.150.151.0injection event (09-13-12)11/12/121.50.49 J<0.155.5<0.15<0.150.79 J0.49 J<0.150.151.002/18/13<0.15<0.15<0.15<0.150.151.005/13/131.40.41 J<0.156.2<0.15<0.150.73 J<0.15<0.150.151.008/21/130.41 J<0.15<0.15<0.150.151.011/11/131.3<0.15<0.154.3<0.15<0.150.74 J<0.15<0.150.151.002/10/14<0.15<0.15<0.15<0.150.151.005/12/14<0.15<0.15<0.155.4<0.15<0.15<0.15<0.15<0.150.151.008/18/14<0.15<0.150.43 J<0.150.151.011/11/141.2<0.15<0.155.3<0.15<0.150.64 J<0.15<0.150.151.002/23/15<0.15<0.15<0.15<0.150.151.005/12/151.3<0.15<0.155.3<0.15<0.150.70 J<0.15<0.150.151.008/24/15<0.15<0.150.40 J<0.150.151.011/10/151.20.44 J5.0<0.15<0.15<0.150.40 J<0.150.151.002/22/16<0.15<0.15<0.15<0.150.151.005/19/161.3<0.15<0.154.8<0.15<0.150.76 J<0.15<0.150.151.008/23/1611/16/161.2<0.15<0.155.2<0.15<0.150.70 J<0.15<0.150.151.002/22/17<0.15<0.15<0.15<0.150.151.005/30/171.2<0.15<0.156.0<0.15<0.150.64 J<0.15<0.150.151.008/22/17<0.15<0.150.47 J<0.150.151.011/14/171.4<0.15<0.155.50.44 J<0.150.75 J0.45 J<0.150.151.002/18/18<0.15<0.15<0.15<0.150.151.005/14/180.96 J<0.15<0.154.6<0.15<0.15<0.15<0.15<0.150.151.008/24/18<0.15<0.150.50 J<0.150.151.011/12/180.86 J<0.15<0.154.8<0.15 <0.150.62 J0.41 J<0.150.151.002/14/19<0.15 <0.15 <0.15 <0.15 0.151.005/20/191.0<0.15<0.155.1<0.15 <0.15 0.51 J<0.15 <0.15 0.151.008/27/19<0.15 <0.15 <0.15 <0.15 0.151.011/19/191.0<0.15<0.155.2<0.15 <0.15 0.66 J0.44 J<0.15 0.151.002/24/20<0.15 <0.15 <0.15 <0.15 0.151.005/19/20<0.15<0.15<0.153.9<0.15 <0.15 <0.15 <0.15 0.151.008/18/20<0.15 <0.15 <0.15 <0.15 0.151.011/16/201.2<0.15<0.154.7<0.15 <0.15 0.55 J<0.15 <0.15 0.151.002/16/21<0.15 <0.15 <0.15 <0.15 0.151.005/19/211.3<0.15<0.156.1<0.15 <0.15 0.64 J<0.15 <0.15 0.151.011/23/21<0.15<0.15<0.155.3<0.15 <0.15 0.52 J<0.15 <0.15 0.151.005/23/221.0<0.15<0.155.4<0.15 <0.15 0.54 J<0.15 <0.15 0.151.011/07/22<0.15 <0.15 <0.15 5.8<0.15 <0.15 <0.15 <0.15 <0.15 0.151.005/03/230.93 J0.23 J<0.15 4.8<0.15 0.27 J0.20 J0.58 J0.27 J<0.15 <0.15 0.151.011/20/23<1.0<1.0<1.04.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15PROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAMW-301 bis(2-ethylhexyl)phthalate04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 3 (2L Std)06/30/932L Std = 3 (Aug. 2010)11/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/10injection event (03-29-11)05/23/11<1.7<1.72.3 J1.71508/23/11injection event (09-28-11) 11/15/1102/21/12injection event (04-14-12) 06/05/12 <1.7 <1.7<1.71.71510/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<1.7<1.7<1.71.71508/21/1311/11/1302/10/1405/12/14<1.7<1.7<1.71.71508/18/1411/11/1402/23/1505/12/15<1.7<1.7<1.71.71508/24/1511/10/1502/22/161.71505/19/16<1.7<1.7<1.71.71508/23/1611/16/1602/22/1705/30/17<1.7<1.7<1.71.71508/22/1711/14/1702/18/1805/14/18<1.9<1.9<1.91.91508/24/1811/12/1802/14/1905/20/19 <1.9 <1.9<1.91.95.008/27/1911/19/1902/24/2005/19/20<1.9<1.9<1.91.95.008/18/2011/16/201.95.002/16/2105/19/21<1.91.95.011/23/2105/23/22<1.91.95.011/07/2205/03/232.3 J1.911.011/20/23MDL MRL QA/QCMW-6R MW-7 MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY bis(2-ethylhexyl)phthalate04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 3 (2L Std)06/30/932L Std = 3 (Aug. 2010)11/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/10injection event (03-29-11)05/23/114.5 J<1.7<1.7<1.71.71508/23/11injection event (09-28-11) 11/15/1102/21/12injection event (04-14-12) 06/05/12 <1.7 <1.7 <1.7<1.71.71510/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<1.7<1.7<1.7<1.7<1.7<1.71.71508/21/1311/11/1302/10/1405/12/14<1.7<1.7<1.7<1.7<1.7<1.71.71508/18/1411/11/1402/23/1505/12/15<1.7<1.7<1.7<1.7<1.7<1.71.71508/24/1511/10/1502/22/16<1.7<1.7<1.7<1.71.71505/19/16<1.7<1.7<1.7<1.7<1.7<1.71.71508/23/1611/16/1602/22/1705/30/17<1.7<1.7<1.7<1.7<1.7<1.71.71508/22/1711/14/1702/18/1805/14/18<1.9<1.9<1.9<1.9<1.9<1.91.91508/24/1811/12/1802/14/1905/20/19 <1.9 <1.9<1.9<1.9<1.9<1.91.95.008/27/1911/19/1902/24/2005/19/20<1.9<1.9<1.9<1.9<1.9<1.91.95.008/18/2011/16/2002/16/2105/19/21<1.9<1.9<1.9<1.9<1.9<1.91.95.011/23/2105/23/22<1.9<1.9<1.9<1.9<1.9<1.91.95.011/07/2305/03/23<1.93.2 J<1.9<1.9<1.92.7 J2.6 J<1.91.911.011/20/23MW-23 MW-24 MDL MRL QA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSMW-21d2LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-301 bromomethane04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 10 (2L Std)06/30/93GWPS = NE (pre- Aug. 2010)11/04/94GWPS = 10 (Aug. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/09<0.49<0.49<0.49<0.49<0.49<0.490.491006/21/10<0.28<0.28<0.28<0.28<0.28<0.280.281011/18/10<0.49<0.49<0.49<0.49<0.49<0.490.4910injection event (03-29-11)05/23/11<0.58<0.58<0.58<0.58<0.58<0.580.581008/23/110.5810injection event (09-28-11)11/15/11<0.58<0.58<0.58<0.58<0.580.581002/21/120.1410injection event (04-14-12)06/05/12<0.14<0.14<0.14<0.14<0.140.141010/09/120.1410injection event (09-13-12)11/12/12<0.14<0.14<0.14<0.14<0.140.141002/18/130.141005/13/13<0.14<0.14<0.14<0.14<0.140.141008/21/130.141011/11/13<0.14<0.14<0.14<0.14<0.140.141002/10/140.141005/12/14<0.14<0.14<0.14<0.14<0.140.141008/18/140.141011/11/14<0.14<0.14<0.14<0.14<0.140.141002/23/150.141005/12/15<0.14<0.14<0.14<0.14<0.140.141008/24/150.141011/10/15<0.14<0.14<0.14<0.14<0.140.141002/22/160.141005/19/16<0.14<0.14<0.14<0.14<0.140.141008/23/1611/16/16<0.14<0.14<0.14<0.14<0.140.141002/22/170.141005/30/17<0.14<0.14<0.14<0.14<0.140.141008/22/170.141011/14/17<0.14<0.14<0.14<0.14<0.140.141002/18/180.141005/14/18<0,14<0.14<0.14 <0.14<0.140.141008/24/1811/12/18<0.14<0.14<0.14<0.14<0.140.141.002/14/190.141.005/20/19<0.14<0.14<0.14<0.14<0.140.141.008/27/190.141.011/19/19<0.14<0.14<0.14<0.14<0.140.141.002/24/200.141.005/19/20<0.14<0.14<0.14<0.14<0.140.141.008/18/2011/16/20<0.14<0.140.141.002/16/210.141.005/19/21<0.14<0.14<0.140.141.011/23/21<0.14<0.14<0.14<0.14<0.140.141.005/23/22<0.14<0.14<0.14<0.14<0.140.141.011/07/22<0.14<0.14<0.14<0.14<0.140.141.005/03/23<0.14<0.14<0.14<0.14<0.140.141.011/20/23<2.0<2.0<2.0<2.0<2.02.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE bromomethane04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 10 (2L Std)06/30/93GWPS = NE (pre- Aug. 2010)11/04/94GWPS = 10 (Aug. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/09<0.49<0.49<0.491.5 J<0.49<0.49<0.491.6 J<0.490.491006/21/10<0.28<0.28<0.28<0.28<0.28<0.28<0.28<0.28<0.280.281011/18/10<0.49<0.49<0.49<0.49<0.49<0.49<0.49<0.49<0.490.4910injection event (03-29-11)05/23/11<0.58<0.58<0.58<0.58<0.58<0.58<0.58<0.58<0.580.581008/23/11<0.58<0.58<0.58<0.580.5810injection event (09-28-11)11/15/11<0.58<0.58<0.58<0.58<0.58<0.58<0.58<0.58<0.580.581002/21/12<0.14<0.14<0.14<0.140.1410injection event (04-14-12)06/05/12<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141010/09/12<0.14<0.14<0.14<0.140.1410injection event (09-13-12)11/12/12<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141002/18/13<0.14<0.14<0.14<0.140.141005/13/13<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141008/21/13<0.14<0.14<0.14<0.140.141011/11/13<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141002/10/14<0.14<0.14<0.14<0.140.141005/12/14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141008/18/14<0.14<0.14<0.14<0.140.141011/11/14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141002/23/15<0.14<0.14<0.14<0.140.141005/12/15<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141008/24/15<0.14<0.14<0.14<0.140.141011/10/15<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141002/22/16<0.14<0.14<0.14<0.140.141005/19/16<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141008/23/1611/16/16<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141002/22/17<0.14<0.14<0.14<0.140.141005/30/17<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141008/22/17<0.14<0.14<0.14<0.140.141011/14/17<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141002/18/18<0.14<0.14<0.14<0.140.141005/14/18<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141008/24/18<0.14<0.14<0.14<0.140.141.011/12/18<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/14/19<0.14<0.14<0.14<0.140.141.005/20/19<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/27/19<0.14<0.14<0.14<0.140.141.011/19/19<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/24/20<0.14<0.14<0.14<0.140.141.005/19/20<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/18/20<10<10<10<10102005/19/20<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/16/21<0.14<0.14<0.14<0.140.141.005/19/21<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.011/23/21<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.005/23/22<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.011/07/22<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.005/03/23<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.011/20/23<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.02.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15MW-21d2HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301 2-butanone04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 4000 (2L Std)06/30/932L Std = 4200 (pre- Jan. 2010)11/04/942L Std = 4000 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/08<0.93.3 J<0.9<0.9<0.9<0.90.9100ic, cc11/05/08<0.91 J<0.9<0.9<0.9<0.90.910005/19/09<1<1<1<1<1<1110011/18/09<22.3 J<2<2<2<2210006/21/10<1<1<1<1<1<1110011/18/10<1<1<1<1<1<11100injection event (03-29-11)05/23/11<1.3<1.3<1.3<1.3<1.3<1.31.310008/23/111.3100injection event (09-28-11)11/15/11<1.3<1.3<1.3<1.3<1.31.310002/21/121.3100injection event (04-14-12)06/05/12<1.3<1.3<1.3<1.3<1.31.310010/09/121.3100injection event (09-13-12)11/12/12<1.3<1.3<1.3<1.3<1.31.310002/18/131.310005/13/13<1.3<1.3<1.3<1.3<1.31.310008/21/131.310011/11/13<1.3<1.3<1.3<1.3<1.31.310002/10/141.310005/12/14<1.3<1.3<1.3<1.3<1.31.310008/18/141.310011/11/14<1.3<1.3<1.3<1.3<1.31.310002/23/151.310005/12/15<1.3<1.3<1.3<1.3<1.31.310008/24/151.310011/10/15<1.3<1.3<1.3<1.3<1.31.310002/22/161.310005/19/16<1.3<1.3<1.3<1.3<1.31.310008/23/1611/16/16<1.3<1.3<1.3<1.312 J1.310002/22/171.310005/30/17<1.3<1.3<1.3<1.3<1.31.310008/22/171.310011/14/17<1.3<1.3<1.3<1.3<1.31.310002/18/181.310005/14/18<1.3<1.3<1.3<1.3<1.31.310008/24/1811/12/18<1.3<1.3<1.3<1.3<1.31.35.002/14/191.35.005/20/19<1.3<1.3<1.3<1.3<1.31.35.008/27/191.35.011/19/19<1.3<1.3<1.3<1.3<1.31.35.002/24/201.35.005/19/20<1.3<1.3<1.3<1.3<1.31.35.008/18/2011/16/20<1.3<1.3<1.3<1.3<1.31.35.002/16/2105/19/21<1.3<1.3<1.3<1.3<1.31.35.011/23/21<1.3<1.3<1.3<1.3<1.31.35.005/23/22<1.3<1.3<1.33.0 JB<1.31.35.011/07/22<1.3<1.3<1.3<1.3<1.31.35.005/03/23<1.3<1.3<1.3<1.3<1.31.35.011/20/23<5.0<5.0<5.0<5.0<5.05.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 2-butanone04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 4000 (2L Std)06/30/932L Std = 4200 (pre- Jan. 2010)11/04/942L Std = 4000 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/08<0.9<0.9<0.9<0.9<0.9<0.9<0.9<0.9<0.90.9100ic, cc11/05/08<0.9<0.9<0.9<0.9<0.9<0.9<0.9<0.9<0.90.910005/19/09<1<1<1<1<1<1<1<1<1110011/18/09<2<2<2<2<2<2<2<2<2210006/21/10<1<1<1<1<1<1<1<1<1110011/18/10<1<1<1<1<1<1<1<1<11100injection event (03-29-11)05/23/11<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310008/23/11<1.3<1.3<1.3<1.31.3100injection event (09-28-11)11/15/11<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310002/21/12<1.3<1.3<1.3<1.31.3100injection event (04-14-12)06/05/12<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310010/09/12<1.3<1.3<1.3<1.31.3100injection event (09-13-12)11/12/12<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310002/18/13<1.3<1.3<1.3<1.31.310005/13/13<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310008/21/13<1.3<1.3<1.3<1.31.310011/11/13<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310002/10/14<1.3<1.3<1.3<1.31.310005/12/14<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310008/18/14<1.3<1.3<1.3<1.31.310011/11/14<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310002/23/15<1.3<1.3<1.3<1.31.310005/12/15<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310008/24/15<1.3<1.3<1.3<1.31.310011/10/15<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310002/22/16<1.3<1.3<1.3<1.31.310005/19/16<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310008/23/1611/16/16<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310002/22/17<1.3<1.3<1.3<1.31.310005/30/17<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310008/22/17<1.3<1.3<1.3<1.31.310011/14/17<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310002/18/18<1.3<1.3<1.3<1.31.310005/14/18<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.3<1.31.310008/24/18<1.3<1.3<1.3<1.31.35.011/12/18<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3<1.3<1.31.35.002/14/19<1.3<1.3<1.3<1.31.35.005/20/19<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3<1.3<1.31.35.008/27/19<1.3<1.3<1.3<1.31.35.011/19/19<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3<1.3<1.31.35.002/24/20<1.3<1.3<1.3<1.31.35.005/19/20<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3<1.3<1.31.35.008/18/20<1.3 <1.3 <1.3<1.31.35.011/16/20<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3<1.3<1.31.35.002/16/21<1.3<1.3<1.3<1.31.35.005/19/21<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.35.011/23/21<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.35.005/23/223.0 JB<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.35.011/07/22<1.3<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.35.005/03/23<1.3<1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.35.011/20/23<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.05.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSMW-21d2FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301 carbon disulfide04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 700 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/07<0.5<0.5<0.51.9 J0.510006/17/08<0.56 J<0.5<0.5<0.5<0.50.5100ic, cc11/05/08<0.54.5 J<0.5<0.5<0.5<0.50.510005/19/09<0.54<0.54<0.54<0.54<0.54<0.540.5410011/18/09<0.54<0.54<0.54<0.54<0.54<0.540.5410006/21/10<0.54<0.54<0.54<0.54<0.54<0.540.5410011/18/10<0.54<0.54<0.54<0.54<0.54<0.540.54100injection event (03-29-11)05/23/11<1.5<1.5<1.5<1.5<1.5<1.51.510008/23/111.5100injection event (09-28-11)11/15/11<1.5<1.5<1.5<1.5<1.51.510002/21/121.5100injection event (04-14-12)06/05/12<1.5<1.5<1.5<1.5<1.51.510010/09/121.5100injection event (09-13-12)11/12/12<1.5<1.5<1.5<1.5<1.51.510002/18/131.510005/13/13<1.5<1.5<1.5<1.5<1.51.510008/21/131.510011/11/13<1.5<1.5<1.5<1.5<1.51.510002/10/141.510005/12/14<1.5<1.5<1.5<1.5<1.51.510008/18/141.510011/11/14<1.5<1.5<1.5<1.5<1.51.510002/23/151.510005/12/15<1.5<1.5<1.5<1.5<1.51.510008/24/151.510011/10/15<1.5<1.5<1.5<1.5<1.51.510002/22/161.510005/19/16<1.5<1.5<1.5<1.5<1.51.510008/23/1611/16/16<1.5<1.5<1.5<1.5<1.51.510002/22/171.510005/30/17<1.5<1.5<1.5<1.5<1.51.510008/22/171.510011/14/17<1.5<1.5<1.5<1.5<1.51.510002/18/181.510005/14/18<1.5<1.5<1.5<1.5<1.51.510008/24/1811/12/18<1.5<1.5<1.5<1.5<1.51.55.002/14/191.55.005/20/19<1.5<1.5<1.5<1.5<1.51.55.008/27/191.55.011/19/19<1.5<1.5<1.5<1.5<1.51.55.002/24/201.55.005/19/20<1.5<1.5<1.5<1.5<1.51.55.008/18/2011/16/20<1.5<1.5<1.5<1.5<1.51.55.002/16/211.55.005/19/21<1.5<1.5<1.5<1.5<1.51.55.011/23/21<1.5<1.5<1.5<1.5<1.51.55.005/23/22<1.5<1.5<1.5<1.5<1.51.55.011/07/22<1.5<1.5<1.5<1.5<1.51.55.005/03/23<1.5<1.5<1.5<1.5<1.51.55.011/20/23<2.0<2.0<2.0<2.0<2.02.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE carbon disulfide04/17/90MCL = w07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 700 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/07<0.5<0.5<0.51.2 J<0.5<0.5<0.5<0.50.510006/17/08<0.5<0.5<0.5<0.5<0.5<0.5<0.5<0.5<0.50.5100ic, cc11/05/088 J<0.5<0.51.2 J<0.5<0.51 J<0.5<0.50.510005/19/09<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.540.5410011/18/09<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.540.5410006/21/10<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.540.5410011/18/10<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.54<0.540.54100injection event (03-29-11)05/23/11<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510008/23/11<1.5<1.5<1.5<1.51.5100injection event (09-28-11)11/15/11<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510002/21/12<1.5<1.5<1.5<1.51.5100injection event (04-14-12)06/05/12<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510010/09/12<1.5<1.5<1.5<1.51.5100injection event (09-13-12)11/12/12<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510002/18/13<1.5<1.5<1.5<1.51.510005/13/13<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510008/21/13<1.5<1.5<1.5<1.51.510011/11/13<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510002/10/14<1.5<1.5<1.5<1.51.510005/12/14<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510008/18/14<1.5<1.5<1.5<1.51.510011/11/14<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510002/23/15<1.5<1.5<1.5<1.51.510005/12/15<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510008/24/15<1.5<1.5<1.5<1.51.510011/10/15<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510002/22/16<1.5<1.5<1.5<1.51.510005/19/16<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510008/23/1611/16/16<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510002/22/17<1.5<1.5<1.5<1.51.510005/30/17<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510008/22/17<1.5<1.5<1.5<1.51.510011/14/17<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.510002/18/18<1.5<1.5<1.5<1.51.510005/14/18<1.5<1.5<1.5<!.5<1.5<1.5<1.5<1.5<1.51.510008/24/18<1.5<1.5<1.5<1.51.55.011/12/18<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.002/14/19<1.5<1.5<1.5<1.51.55.005/20/19<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.008/27/19<1.5<1.5<1.5<1.51.55.011/19/19<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.002/24/20<1.5<1.5<1.5<1.51.55.005/19/20<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.008/18/20<1.5<1.5<1.5<1.51.55.011/16/20<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.002/16/21<1.5<1.5<1.5<1.51.55.005/19/21<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.011/23/21<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.005/23/22<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.011/07/22<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.005/03/23<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.5<1.51.55.011/20/23<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.0<2.02.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15MW-21d2HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301 chlorobenzene04/17/90MCL = 10007/11/91FBAC = MDL (LOD)05/28/92NCGQS = 50 (2L Std)06/30/9311/04/94<5.0<5.0<5.0<5.0<5.0<5.012/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/987 R<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.006/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0<5.0<5.006/22/04<5.0<5.0<5.0<5.0<5.011/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.1<0.1<0.11.2 J0.13.012/12/07<0.1<0.10.4 J0.9 J0.13.006/17/08<0.1<0.1<0.13 J0.4 J1.2 J0.13.0ic, cc11/05/08<0.1<0.1<0.1<0.10.5 J0.7 J0.13.005/19/09<0.27<0.27<0.27<0.271.7 J1.9 J0.273.011/18/09<0.27<0.27<0.27<0.270.69 J1.4 J0.273.006/21/10<0.069<0.069<0.069<0.0690.59 J1.8 J0.0693.011/18/10<0.27<0.27<0.27<0.270.59 J1.7 J0.273.0injection event (03-29-11)05/23/11<0.74<0.74<0.74<0.74<0.741.9 J0.743.008/23/110.743.0injection event (09-28-11)11/15/11<0.74<0.74<0.74<0.741.6 J0.743.002/21/120.173.0injection event (04-14-12)06/05/12<0.17<0.17<0.170.48 J<0.170.173.010/09/120.173.0injection event (09-13-12)11/12/12<0.17<0.17<0.170.51 J1.9 J0.173.002/18/130.173.005/13/13<0.17<0.17<0.170.62 J2.3 J0.173.008/21/130.173.011/11/13<0.17<0.17<0.170.85 J1.6 J0.173.002/10/140.173.005/12/14<0.17<0.17<0.170.55 J3.50.173.008/18/140.173.011/11/14<0.17<0.17<0.170.68 J1.8 J0.173.002/23/150.173.005/12/15<0.17<0.17<0.170.43 J3.00.173.008/24/150.173.011/10/15<0.17<0.17<0.170.84 J2.2 J0.173.002/22/160.173.005/19/16<0.17<0.17<0.170.45 J3.30.173.008/23/1611/16/16<0.17<0.17<0.170.84 J3.20.173.002/22/170.173.005/30/17<0.17<0.17<0.17<0.173.30.173.008/22/170.173.011/14/17<0.17<0.17<0.170.57 J2.0 J0.173.002/18/180.173.005/14/18<0.17<0.17<0.173.5<0.170.173.008/24/1811/12/18<0.17<0.17<0.174.6<0.170.171.002/14/190.171.005/20/19<0.17<0.17<0.174.3<0.170.171.008/27/190.171.011/19/19<0.17<0.17<0.174.9<0.170.171.002/24/200.171.005/19/20<0.17<0.17<0.174.0<0.170.171.008/18/2011/16/20<0.17<0.17<0.174.80.86 J0.171.002/16/210.171.005/19/21<0.17<0.17<0.175.2<0.170.171.011/23/21<0.17<0.17<0.175.00.89 J0.171.005/23/22<0.17<0.17<0.175.4<0.170.171.011/07/22<0.17<0.17<0.173.4<0.170.171.005/03/23<0.17<0.17<0.17<0.175.20.171.011/20/23<1.0<1.0<1.0<1.04.21.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE chlorobenzene04/17/90MCL = 10007/11/91FBAC = MDL (LOD)05/28/92NCGQS = 50 (2L Std)06/30/9311/04/94<5.0<5.0<5.0<5.012/20/94<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0<5.0<5.0<5.0<5.006/04/02<5.0<5.0<5.0<5.0<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/22/04<5.0<5.0<5.0<5.0<5.0<5.0<5.011/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.0<5.0<5.0<5.0<5.005/22/06<5.0<5.0<5.0<5.0<5.0<5.0<5.011/27/06<5.0<5.0<5.0<5.0<5.0<5.0<5.006/12/074.6<0.1<0.1<0.10.5 J<0.10.6 J0.7 J0.13.012/12/073.90.2 J<0.10.3 J0.3 J<0.11.2 J0.9 J0.13.006/17/085.2 J0.3 J<0.10.4 J0.5 J<0.11 J0.8 J<0.10.13.0ic, cc11/05/084.4<0.1<0.10.4 J0.4 J0.3 J<0.10.8 J0.3 J0.13.005/19/096.5<0.27<0.270.88 J0.97 J0.68 J1.4 J0.99 J0.57 J0.273.011/18/095.6<0.27<0.270.77 J0.81 J0.62 J2.1 J1.3 J0.59 J0.273.006/21/106.5<0.069<0.0690.8 J0.87 J0.66 J1.2 J0.58 J<0.0690.0693.011/18/106.30.41 J<0.270.73 J0.95 J<0.271.6 J1.8 J<0.270.273.0injection event (03-29-11)05/23/116.5<0.74<0.74<0.740.82 J<0.741.8 J1.2 J<0.740.743.008/23/110.99 J<0.742 J<0.740.743.0injection event (09-28-11)11/15/115.1<0.74<0.74<0.74<0.74<0.742.5 J1.9 J<0.740.743.002/21/120.75 J<0.171.6 J<0.170.173.0injection event (04-14-12)06/05/126.6<0.17<0.170.55 J0.92 J<0.172.3 J1.5 J<0.170.173.010/09/120.94 J0.72 J2.2 J<0.170.173.0injection event (09-13-12)11/12/127.2<0.17<0.170.77 J1 J<0.17<0.172.1 J0.48 J0.173.002/18/131.1 J<0.171.6 J0.7 J0.173.005/13/137.1<0.17<0.17<0.171.3 J0.47 J2.4 J1.4 J0.73 J0.173.008/21/131.31.12.00.46 J0.173.011/11/137.2<0.17<0.170.88 J1.5 J<0.172.3 J2.5 J<0.170.173.002/10/141.5 J<0.171.4 J<0.170.173.005/12/148.00.42 J<0.171.5 J1.3 J0.63 J2.5 J2.4 J<0.170.173.008/18/14<0.17<0.171.4 J<0.170.173.011/11/146.1<0.17<0.171.1 J1.4 J<0.172.4 J3.1<0.170.173.002/23/151.5 J<0.172.0 J<0.170.173.005/12/156.8<0.17<0.171.1 J1.2 J0.48 J2.4 J2.0 J<0.170.173.008/24/151.2 J0.74 J2.8 J<0.170.173.011/10/155.90.47 J<0.171.2 J1.3 J<0.172.6 J3.1<0.170.173.002/22/161.0 J<0.171.6 J<0.170.173.005/19/166.8<0.17<0.171.2 J1.3 J0.79 J2.5 J1.8 J<0.170.173.008/23/1611/16/166.7<0.17<0.171.4 J1.4 J0.73 J2.7 J2.8 J<0.170.173.002/22/171.4 J0.68 J2.0 J<0.170.173.005/30/177.0<0.17<0.171.3 J1.3 J0.93 J2.0 J2.3 J<0.170.173.008/22/171.4 J0.76 J3.4<0.170.173.011/14/175.6<0.17<0.170.94 J1.4 J0.46 J3.42.9 J<0.170.173.002/18/181.0 J<0.173.2<0.170.173.005/14/185.6<0.17<0.171.3 J1.4 J0.91 J3.22.8 J<0.170.173.008/24/181.4 J0.74 J3.2<0.170.171.011/12/186.40.49 J<0.171.21.20.45 J3.03.4<0.170.171.002/14/191.20.59 J1.5<0.170.171.005/20/196.8<0.17<0.171.31.00.73 J1.71.3<0.170.171.008/27/19<0.17<0.17<0.17<0.170.171.011/19/195.2<0.17<0.171.60.85 J<0.172.33.1<0.170.171.002/24/201.3<0.171.9<0.170.171.005/19/205.1<0.17<0.171.20.94 J0.51 J1.91.4<0.170.171.008/18/201.90.91 J2.7<0.170.171.011/16/207.7<0.17<0.17<0.171.71.02.32.9<0.170.171.002/16/211.4<0.170.79 J<0.170.171.005/19/218.6<0.17<0.172.31.81.32.32.1<0.170.171.011/23/217.1<0.17<0.172.11.71.12.33.0<0.170.171.005/23/226.8<0.17<0.171.81.7<0.172.62.1<0.170.171.011/07/226.6<0.17<0.171.9<0.17<0.173.92.8<0.170.171.005/03/236.8<0.17<0.171.6<0.171.41.13.21.6<0.17<0.170.171.011/20/235.7<1.0<1.01.3<1.0<1.0<1.02.83.1<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSMW-21d2FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301 chloroethane04/17/90<10.0<10.0<10.0<10.0<10.0MCL = 07/11/91<10.0<10.0<10.0<10.0<10.0FBAC = MDL (LOD)05/28/92<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0NCGQS = 3000 (2L Std)06/30/93<10.0<10.0<10.0<10.0<10.0<10.0<10.02L Std = NE (pre- Jan. 2010)11/04/94<10.0<10.0<10.0<10.0<10.0<10.02L Std = 3000 (Jan. 2010)12/20/94<10.0<10.0<10.0<10.0<10.0<10.002/02/95<10.0<10.0<10.0<10.0<10.0<10.003/13/95<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/15/95<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.007/25/96<10.0<10.0<10.0<10.0<10.0<10.002/25/97<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.009/03/97<10.0<10.0<10.0<10.0<10.005/04/98<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/02/98<10.0<10.0<10.0<10.0<10.004/26/99<10.0<10.0<10.0<10.0<10.011/22/99<10.0<10.0<10.0<10.0<10.005/23/00<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/29/00<10.0<10.0<10.0<10.0<10.006/05/01<10.0<10.0<10.0<10.0<10.0<10.0<10.011/13/01<10.0<10.0<10.006/04/02<10.0<10.0<10.003/12/03<10.0<10.0<10.0<10.006/18/03<10.0<10.0<10.0<10.0<10.012/08/03<10.0<10.0<10.0<10.0<10.006/22/04<10.0<10.0<10.0<10.0<10.011/30/04<10.0<10.0<10.006/01/05<10.0<10.0<10.011/02/05<10.0<10.0<10.005/22/06<10.0<10.0<10.011/27/06<10.0<10.0<10.006/12/07<0.1<0.13.6 J6.9 J0.11012/12/07<0.1<0.10.4 J1.3 J0.11006/17/08<0.1<0.1<0.1<0.1<0.11.5 J0.110ic, cc11/05/08<0.1<0.1<0.1<0.10.7 J0.7 J0.11005/19/09<0.3<0.3<0.3<0.31.1 J1.9 J0.31011/18/09<0.3<0.3<0.3<0.3<0.31.2 J0.31006/21/10<0.18<0.18<0.18<0.18<0.181.2 J0.181011/18/10<0.3<0.3<0.3<0.3<0.3<0.30.310injection event (03-29-11)05/23/11<0.75<0.75<0.75<0.75<0.75<0.750.751008/23/110.7510injection event (09-28-11)11/15/11<0.75<0.75<0.75<0.75<0.750.751002/21/120.2310injection event (04-14-12)06/05/12<0.23<0.23<0.23<0.23<0.230.231010/09/120.2310injection event (09-13-12)11/12/12<0.23<0.23<0.23<0.231.3 J0.231002/18/130.231005/13/13<0.23<0.23<0.23<0.232.3 J0.231008/21/130.231011/11/13<0.230.66 J<0.23<0.230.82 J0.231002/10/140.231005/12/14<0.23<0.23<0.23<0.232.4 J0.231008/18/140.231011/11/14<0.23<0.23<0.23<0.23<0.230.231002/23/150.231005/12/15<0.23<0.23<0.23<0.231.4 J0.231008/24/150.231011/10/15<0.23<0.23<0.23<0.230.88 J0.231002/22/160.231005/19/16<0.23<0.23<0.23<0.231.1 J0.231008/23/1611/16/16<0.23<0.23<0.23<0.23<0.230.231002/22/170.231005/30/17<0.23<0.23<0.23<0.23<0.230.231008/22/170.231011/14/17<0.23<0.23<0.23<0.23<0.230.231002/18/180.231005/14/18<0.23<0.23<0.23<0.23<0.230.231008/24/1811/12/18<0.23<0.23<0.23<0.23<0.230.231.002/14/190.231.005/20/19<0.23<0.23<0.230.68 J<0.230.231.008/27/190.231.011/19/19<0.23<0.23<0.23<0.23<0.230.231.002/24/200.231.005/19/20<0.23<0.23<0.23<0.23<0.230.231.008/18/2011/16/20<0.23<0.23<0.23<0.23<0.230.231.002/16/210.231.005/19/21<0.23<0.23<0.23<0.23<0.230.231.011/23/21<0.23<0.23<0.231.6<0.230.231.005/23/22<0.23<0.23<0.231.5<0.230.231.011/07/22<0.23<0.23<0.23<0.23<0.230.231.005/03/23<0.23<0.23<0.23<0.231.30.231.011/20/23<1.0<1.0<1.0<1.01.91.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE chloroethane04/17/90<10.0<10.0MCL = 07/11/91<10.0<10.0FBAC = MDL (LOD)05/28/92<10.0<10.0<10.0NCGQS = 3000 (2L Std)06/30/93<10.0<10.0<10.02L Std = NE (pre- Jan. 2010)11/04/94<10.0<10.0<10.0<10.02L Std = 3000 (Jan. 2010)12/20/94<10.0<10.0<10.0<10.002/02/95<10.0<10.0<10.0<10.003/13/95<10.0<10.0<10.0<10.011/15/95<10.0<10.0<10.0<10.007/25/96<10.0<10.0<10.0<10.002/25/9713.3<10.0<10.0<10.009/03/97<10.0<10.0<10.0<10.005/04/9817<10.0<10.0<10.011/02/9812<10.0<10.0<10.004/26/9913<10.0<10.0<10.011/22/9910<10.0<10.0<10.005/23/00<10.0<10.0<10.0<10.0<10.0<10.0<10.011/29/00<10.0<10.0<10.0<10.0<10.0<10.0<10.006/05/01<10.0<10.0<10.0<10.0<10.0<10.0<10.011/13/01<10.0<10.0<10.0<10.0<10.0<10.0<10.006/04/02<10.0<10.0<10.0<10.0<10.0<10.0<10.003/12/03<10.0<10.0<10.0<10.0<10.0<10.0<10.006/18/03<10.0<10.0<10.0<10.0<10.0<10.0<10.012/08/03<10.0<10.0<10.0<10.0<10.0<10.0<10.006/22/04<10.0<10.0<10.0<10.0<10.0<10.0<10.011/30/04<10.0<10.0<10.0<10.0<10.0<10.0<10.006/01/05<10.0<10.0<10.0<10.0<10.0<10.0<10.011/02/05<10.0<10.0<10.0<10.0<10.0<10.0<10.005/22/06<10.0<10.0<10.0<10.0<10.0<10.0<10.011/27/06<10.0<10.0<10.0<10.0<10.0<10.0<10.006/12/0717.13.3 J<0.11.7 J7.7 J5.8 J<0.18.9 J0.11012/12/072.9 J0.7 J<0.10.5 J1.3 J0.5 J<0.12.4 J0.11006/17/084.8 J1.4 J<0.10.6 J2.2 J1.7 J<0.12.6 J<0.10.110ic, cc11/05/083.3 J0.5 J<0.10.4 J1.5 J1.2 J<0.11.9 J1.8 J0.11005/19/094.6 J0.91 J<0.30.4 J2.1 J1.8 J<0.31.9 J<0.30.31011/18/093.3 J0.79 J<0.3<0.33.5 J3 J<0.31.8 J<0.30.31006/21/102.3 J0.58 J<0.18<0.181.1 J0.83 J<0.180.95 J0.83 J0.181011/18/102.5 J0.77 J<0.3<0.31.7 J0.76 J<0.31.8 J1.3 J0.310injection event (03-29-11)05/23/111.4 J<0.75<0.75<0.75<0.75<0.75<0.75<0.75<0.750.751008/23/111.7 J1.6 J2.2 J1 J0.7510injection event (09-28-11)11/15/111.7 J<0.75<0.75<0.750.9 J<0.75<0.751.3 J<0.750.751002/21/121.2 J0.88 J1.5 J0.81 J0.2310injection event (04-14-12)06/05/12<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231010/09/12<0.231 J<0.231.2 J0.2310injection event (09-13-12)11/12/122.5 J0.75 J<0.23<0.231.5 J0.68 J<0.231.6 J1.2 J0.231002/18/131.4 J<0.231.3 J<0.230.231005/13/134.6 J<0.23<0.23<0.23<0.23<0.23<0.232.6 J<0.230.231008/21/13<0.230.88 J1.51.20.231011/11/132.8 J<0.23<0.230.53 J1.8 J<0.23<0.231.3 J1.3 J0.231002/10/14<0.23<0.23<0.23<0.230.231005/12/143.6 J<0.23<0.23<0.232.5 J<0.23<0.232.6 J<0.230.231008/18/141.4 J<0.231.8 J<0.230.231011/11/14<0.23<0.23<0.23<0.231.9 J<0.23<0.23<0.23<0.230.231002/23/15<0.23<0.23<0.23<0.230.231005/12/152.5 J<0.23<0.23<0.231.3 J<0.23<0.231.8 J<0.230.231008/24/15<0.23<0.23<0.23<0.230.231011/10/151.6 J<0.23<0.23<0.230.74 J<0.23<0.230.99 J<0.230.231002/22/16<0.23<0.23<0.23<0.230.231005/19/161.5 J<0.23<0.23<0.230.75 J0.49 J<0.230.88 J<0.230.231008/23/1611/16/161.2 J<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231002/22/17<0.23<0.23<0.23<0.230.231005/30/172.4 J<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231008/22/171.0 J<0.230.91 J<0.230.231011/14/17<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231002/18/18<0.23<0.23<0.23<0.230.231005/14/18<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231008/24/18<0.23<0.23<0.23<0.230.231.011/12/18<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/14/19<0.23<0.23<0.23<0.230.231.005/20/19<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/27/19<0.23<0.23<0.23<0.230.231.011/19/191.2<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/24/20<0.23<0.23<0.23<0.230.231.005/19/20<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/18/20<0.23<0.23<0.23<0.23<0.230.231.011/16/201.3<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/16/21<0.23<0.23<0.23<0.230.231.005/19/21<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.011/23/211.3<0.23<0.23<0.230.64 J<0.23<0.23<0.23<0.230.231.005/23/221.3<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.011/07/22<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.005/03/231.1<0.23<0.23<0.23<0.23<0.23<0.23<0.230.37 J<0.23<0.230.231.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15MW-21d2HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301 2,4-D 04/17/90MCL = 70 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 70 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/01 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 cc,ce11/13/0106/04/02 <1.0 <1.003/12/03 <1.0 <1.006/18/03 <1.0 <1.012/08/03 <1.0 <1.006/22/04 <1.0 <1.011/30/04 <1.0 <1.006/01/05 <1.0 <1.011/02/05 <1.0 <1.005/22/06 <1.0 <1.011/27/0606/12/07 <0.03 <0.03 0.03212/12/0706/17/08<0.03<0.030.03211/05/0805/19/09<0.091<0.091<0.0910.091211/18/0906/21/10<0.091<0.091<0.0910.091211/18/10injection event (03-29-11)05/23/11<0.15<0.15<0.150.15208/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<0.16<0.16<0.160.16210/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<0.16<0.16<0.160.16208/21/1311/11/1302/10/1405/12/14<0.27<0.27<0.270.27208/18/1411/11/1402/23/1505/12/15<0.27<0.27<0.270.27208/24/1511/10/1502/22/1605/19/16<0.27<0.27<0.270.27208/23/1611/16/1602/22/1705/30/17<0.27<0.27<0.270.27208/22/1711/14/1702/18/1805/14/18<0.27 <0.27<0.270.27208/24/1811/12/1802/14/1905/20/19 <1.4 <1.4<1.41.42.508/27/1911/19/1902/24/2005/19/20<0.27 <0.27<0.270.270.508/18/2011/16/2002/16/2105/19/21<0.27 <0.27<0.270.270.511/23/2105/23/22<0.27 <0.27<0.270.270.511/07/2205/03/23<0.27 <0.27<0.270.270.511/20/23MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 2,4-D 04/17/90MCL = 70 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 70 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/01 <1.0 <1.0<1.01.3 R<1.0<1.0<1.0cc,ce11/13/0106/04/02<1.0<1.003/12/03<1.0<1.006/18/03<1.0<1.012/08/03<1.0<1.006/22/04<1.0<1.011/30/04<1.0<1.006/01/05<1.0<1.011/02/05<1.0<1.005/22/06<1.0<1.011/27/0606/12/07<0.03<0.030.03212/12/0706/17/08<0.03<0.0311/05/0805/19/09<0.091<0.091<0.091<0.0910.091211/18/0906/21/10<0.091<0.091<0.091<0.0910.091211/18/10injection event (03-29-11)05/23/11<0.15<0.15<0.15<0.150.15208/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<0.16<0.16<0.16<0.160.16210/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<0.16<0.16<0.16<0.16<0.16<0.160.16208/21/1311/11/1302/10/1405/12/14<0.27<0.27<0.27<0.27<0.27<0.270.27208/18/1411/11/1402/23/1505/12/15<0.27<0.27<0.27<0.27<0.27<0.270.27208/24/1511/10/1502/22/1605/19/16<0.27<0.27<0.27<0.27<0.27<0.270.27208/23/1611/16/1602/22/17`05/30/17<0.27<0.27<0.27<0.27<0.27<0.270.27208/22/1711/14/1702/18/1805/14/18<0.27<0.27<0.27<0.27<0.27<0.270.27208/24/1811/12/1802/14/1905/20/19 <1.4 <1.4<1.4<1.4<1.4<1.41.42.508/27/1911/19/1902/24/2005/19/20<0.27<0.27<0.27<0.27<0.27<0.270.270.508/18/2011/16/2002/16/2105/19/21<0.27<0.27<0.27<0.27<0.27<0.270.270.511/23/2105/23/22<0.27<0.27<0.27<0.27<0.27<0.270.270.511/07/2205/03/23<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.270.511/20/23MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSMW-21d2FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301 4,4'-DDD 04/17/90MCL =07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.1 (2L Std)06/30/932L Std = 0.14 (pre- Jan. 2010)11/04/942L Std = 0.1 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/07<0.01<0.010.010.112/12/0706/17/08 <0.01 <0.01 0.010.111/05/0805/19/09<0.024<0.024<0.0240.0240.111/18/0906/21/10<0.013<0.013<0.0130.0130.111/18/10injection event (03-29-11)05/23/11<0.013<0.013<0.0130.0130.108/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<0.044<0.044<0.0440.0440.110/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<0.044<0.044<0.0440.0440.108/21/1311/11/1302/10/1405/12/14<0.044<0.044<0.0440.0440.108/18/1411/11/1402/23/1505/12/15<0.044<0.044<0.0440.0440.108/24/1511/10/1502/22/1605/19/16<0.044<0.044<0.0440.0440.108/23/1611/16/1602/22/1705/30/17<0.044<0.044<0.0440.0440.108/22/1711/14/1702/18/1805/14/18<0.044<0.044<0.0440.0440.108/24/1811/12/1802/14/1905/20/19 <0.044 <0.044 <0.0440.0440.0508/27/1911/19/1902/24/2005/19/20<0.044<0.044<0.0440.0440.0508/18/2011/16/2002/16/2105/19/21<0.044<0.044<0.0440.0440.0511/23/2105/23/22<0.044<0.044<0.0440.0440.0511/07/2205/03/23<0.044<0.044<0.0440.0440.0511/20/23MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 4,4'-DDD 04/17/90MCL =07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.1 (2L Std)06/30/932L Std = 0.14 (pre- Jan. 2010)11/04/942L Std = 0.1 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/07<0.010.02 J0.010.112/12/0706/17/08 <0.01 <0.0111/05/0805/19/09 <0.024 <0.024 <0.024 <0.024 0.024 0.111/18/0906/21/10 <0.013 <0.013 <0.013 <0.013 0.013 0.111/18/10injection event (03-29-11) 05/23/11 <0.013 <0.013 <0.013 <0.013 0.013 0.108/23/11injection event (09-28-11) 11/15/1102/21/12injection event (04-14-12) 06/05/12 <0.044 <0.044 <0.044 <0.044 0.044 0.110/09/12injection event (09-13-12) 11/12/1202/18/1305/13/13 <0.044 <0.044 <0.044 <0.044 <0.044 <0.044 0.0440.108/21/1311/11/1302/10/1405/12/14<0.044<0.044<0.044<0.044<0.044<0.0440.0440.108/18/1411/11/1402/23/1505/12/15<0.044<0.044<0.044<0.044<0.044<0.0440.0440.108/24/1511/10/1502/22/1605/19/16<0.044<0.044<0.044<0.044<0.044<0.0440.0440.108/23/1611/16/1602/22/1705/30/17<0.044<0.044<0.044<0.044<0.044<0.0440.0440.108/22/1711/14/1702/18/1805/14/18<0.044<0.044<0.044<0.044<0.044<0.0440.0440.108/24/1811/12/1802/14/1905/20/19 <0.044 <0.044 <0.044 <0.044 <0.044 <0.044 0.0440.0508/27/1911/19/1902/24/2005/19/20<0.044<0.044<0.044<0.044<0.044<0.0440.0440.0508/18/2011/16/2002/16/2105/19/21<0.044<0.044<0.044<0.044<0.044<0.0440.0440.0511/23/2105/23/22<0.044<0.044<0.044<0.044<0.044<0.0440.0440.0511/07/2205/03/23<0.044<0.044<0.044<0.044<0.044<0.044<0.044<0.0440.0440.0511/20/23MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2MW-301 dibromochloromethane04/17/90MCL = 80 (trihalomethane)07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.4 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/10injection event (03-29-11) 05/23/1108/23/11injection event (09-28-11) 11/15/1102/21/12injection event (04-14-12) 06/05/1210/09/12injection event (09-13-12) 11/12/1202/18/1305/13/1308/21/1311/11/13<0.17<0.17<0.17<0.170.47 J0.173.002/10/140.173.005/12/14<0.17<0.17<0.17<0.17<0.170.173.008/18/140.173.011/11/14<0.17<0.17<0.17<0.17<0.170.173.002/23/150.173.005/12/15<0.17<0.17<0.17<0.17<0.170.173.008/24/150.173.011/10/15<0.17<0.17<0.17<0.17<0.170.173.002/22/160.173.005/19/16<0.17<0.17<0.17<0.17<0.170.173.008/23/1611/16/16<0.17<0.17<0.17<0.17<0.170.173.002/22/170.173.005/30/17<0.17<0.17<0.17<0.17<0.170.173.008/22/170.173.011/14/17<0.17<0.17<0.17<0.17<0.170.173.002/18/180.173.005/14/18<0.17<0.17<0.17<0.17<0.170.173.008/24/1811/12/18<0.17<0.17<0.17<0.17<0.170.171.002/14/190.171.005/20/19<0.17<0.17<0.17<0.17<0.170.171.008/27/190.171.011/19/19<0.17<0.17<0.17<0.17<0.170.171.002/24/200.171.005/19/20<0.17<0.17<0.17<0.17<0.170.171.008/18/2011/16/20<0.17<0.17<0.17<0.17<0.170.171.002/16/210.171.005/19/21<0.17<0.17<0.17<0.17<0.170.171.011/23/21<0.17<0.17<0.17<0.17<0.170.171.005/23/22<0.17<0.17<0.17<0.17<0.170.171.011/07/22<0.17<0.17<0.17<0.17<0.170.171.005/03/23<0.17<0.17<0.17<0.17<0.170.171.011/20/23<1.0<1.0<1.0<1.0<1.01.0FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6MW-6RMW-7MW-7RMW-13MW-14A MW-14BMDLMRLQA/QCCLIENT: THE COUNTY OF ORANGE dibromochloromethane04/17/90MCL = 80 (trihalomethane)07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.4 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/10injection event (03-29-11) 05/23/1108/23/11injection event (09-28-11) 11/15/1102/21/12injection event (04-14-12) 06/05/1210/09/12injection event (09-13-12) 11/12/1202/18/1305/13/1308/21/1311/11/13<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.002/10/14<0.17<0.17<0.17<0.170.173.005/12/14<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.008/18/14<0.17<0.17<0.17<0.170.173.011/11/14<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.002/23/15<0.17<0.17<0.17<0.170.173.005/12/15<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.008/24/15<0.17<0.17<0.17<0.170.173.011/10/15<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.002/22/16<0.17<0.17<0.17<0.170.173.005/19/16<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.008/23/1611/16/16<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.002/22/17<0.17<0.17<0.17<0.170.173.005/30/17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.008/22/17<0.17<0.17<0.17<0.170.173.011/14/17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.002/18/18<0.17<0.17<0.17<0.170.173.005/14/18<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.173.008/24/18<0.17<0.17<0.17<0.170.171.011/12/18<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.002/14/19<0.17<0.17<0.17<0.170.171.005/20/19<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.008/27/19<0.17<0.17<0.17<0.170.171.011/19/19<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.002/24/20<0.17<0.17<0.17<0.170.171.005/19/20<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.008/18/20<0.17<0.17<0.17<0.170.171.011/16/20<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.002/16/21<0.17<0.17<0.17<0.170.171.005/19/21<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.011/23/21<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.005/23/22<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.011/07/22<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.005/03/23<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-21dMW-21sMW-22MW-23MW-24MDLMRLQA/QCCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-15MW-16MW-17MW-20MW-21d2MW-301 1,2-dichlorobenzene04/17/90MCL = 60007/11/91FBAC = MDL (LOD)05/28/92NCGQS = 20 (2L Std)06/30/932L Std = 24 (pre- Jan. 2010)11/04/942L Std = 20 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/02sr03/12/03ht06/18/0312/08/03ic, cc06/22/04ic, cc11/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/07<0.1<0.1<0.1<0.10.11.006/17/08<0.1<0.1<0.1<0.1<0.1<0.10.15.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.10.15.005/19/09<0.27<0.27<0.27<0.27<0.27<0.270.275.011/18/09<0.27<0.27<0.27<0.27<0.27<0.270.275.006/21/10<0.052<0.052<0.052<0.052<0.052<0.0520.0525.011/18/10<0.27<0.27<0.27<0.27<0.27<0.270.275.0injection event (03-29-11)05/23/11<0.11<0.11<0.11<0.11<0.11<0.110.115.008/23/110.115.0injection event (09-28-11)11/15/11<0.11<0.11<0.11<0.11<0.110.115.002/21/120.195.0injection event (04-14-12)06/05/12<0.19<0.19<0.19<0.19<0.190.195.010/09/120.195.0injection event (09-13-12)11/12/12<0.19<0.19<0.19<0.19<0.190.195.002/18/130.195.005/13/13<0.19<0.19<0.19<0.19<0.190.195.008/21/130.195.011/11/13<0.19<0.19<0.19<0.19<0.190.195.002/10/140.195.005/12/14<0.19<0.19<0.19<0.19<0.190.195.008/18/140.195.011/11/14<0.19<0.19<0.19<0.19<0.190.195.002/23/150.195.005/12/15<0.19<0.19<0.19<0.19<0.190.195.008/24/150.195.011/10/15<0.19<0.19<0.19<0.19<0.190.195.002/22/160.195.005/19/16<0.19<0.19<0.19<0.19<0.190.195.008/23/1611/16/16<0.19<0.19<0.19<0.19<0.190.195.002/22/170.195.005/30/17<0.19<0.19<0.19<0.19<0.190.195.008/22/170.195.011/14/17<0.19<0.19<0.19<0.19<0.190.195.002/18/180.195.005/14/18<0.19<0.19<0.19<0.19<0.190.195.008/24/1811/12/18<0.19<0.19<0.190.48 J<0.190.191.002/14/190.191.005/20/19<0.19<0.19<0.190.42 J<0.190.191.008/27/190.191.011/19/19<0.19<0.19<0.190.75 J<0.190.191.002/24/200.191.005/19/20<0.19<0.19<0.190.63 J<0.190.191.008/18/2011/16/20<0.19<0.19<0.190.44 J<0.190.191.002/16/210.191.005/19/21<0.19<0.19<0.190.51 J<0.190.191.011/23/21<0.19<0.19<0.190.45 J<0.190.191.005/23/22<0.19<0.19<0.190.45 J<0.190.191.011/07/22<0.19<0.19<0.19<0.19<0.190.191.005/03/23<0.19<0.19<0.19<0.190.46 J0.191.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 1,2-dichlorobenzene04/17/90MCL = 60007/11/91FBAC = MDL (LOD)05/28/92NCGQS = 20 (2L Std)06/30/932L Std = 24 (pre- Jan. 2010)11/04/942L Std = 20 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/02sr03/12/03ht06/18/0312/08/03ic, cc06/22/04ic, cc11/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/070.5 J<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.006/17/080.4 J<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.15.0ic, cc11/05/080.4 J<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.15.005/19/090.46 J<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.275.011/18/09<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.275.006/21/100.54 J<0.052<0.052<0.052<0.052<0.052<0.052<0.052<0.0520.0525.011/18/100.61 J<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.275.0injection event (03-29-11)05/23/110.66 J<0.11<0.11<0.11<0.11<0.11<0.11<0.11<0.110.115.008/23/11<0.11<0.11<0.11<0.110.115.0injection event (09-28-11)11/15/110.66 J<0.11<0.11<0.11<0.11<0.11<0.11<0.11<0.110.115.002/21/12<0.19<0.19<0.19<0.190.195.0injection event (04-14-12)06/05/120.5 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.010/09/12<0.19<0.19<0.19<0.190.195.0injection event (09-13-12)11/12/120.56 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.002/18/13<0.19<0.19<0.19<0.190.195.005/13/130.63 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.008/21/13<0.19<0.19<0.19<0.190.195.011/11/130.56 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.002/10/14<0.19<0.19<0.19<0.190.195.005/12/140.64 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.008/18/14<0.19<0.19<0.19<0.190.195.011/11/140.62 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.002/23/15<0.19<0.19<0.19<0.190.195.005/12/150.51 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.008/24/15<0.19<0.19<0.19<0.190.195.011/10/150.64 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.002/22/16<0.19<0.19<0.19<0.190.195.005/19/160.64 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.008/23/1611/16/160.56 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.002/22/17<0.19<0.19<0.19<0.190.195.005/30/170.50 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.008/22/17<0.19<0.19<0.19<0.190.195.011/14/170.60 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.195.002/18/18<0.19<0.19<0.19<0.190.195.005/14/18<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.19195.008/24/18<0.19<0.19<0.19<0.190.191.011/12/180.51 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.191.002/14/19<0.19<0.19<0.19<0.190.191.005/20/190.42 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.191.008/27/19<0.19<0.19<0.19<0.190.191.011/19/19<0.19<0.19<0.190.43 J<0.19<0.19<0.19<0.19<0.190.191.002/24/20<0.19<0.19<0.19<0.190.191.005/19/200.56 J<0.19<0.190.46 J<0.19<0.19<0.19<0.19<0.190.191.008/18/20<0.19<0.19<0.19<0.190.191.011/16/200.62 J<0.19<0.19<0.19<0.19<0.19<0.19<0.19<0.190.191.002/16/21<0.19<0.19<0.19<0.190.191.005/19/21<0.19<0.19<0.190.42 J<0.19<0.19<0.19<0.19<0.190.191.011/23/210.79 J<0.19<0.190.48 J<0.19<0.19<0.19<0.19<0.190.191.005/23/220.44 J<0.19<0.190.44 J<0.19<0.19<0.19<0.19<0.190.191.011/07/22<0.19<0.19<0.190.45 J<0.19<0.19<0.19<0.19<0.190.191.005/03/230.51 J<0.19<0.190.39 J<0.19<0.19<0.19<0.190.19 J<0.19<0.190.191.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2MW-301 1,4-dichlorobenzene04/17/90MCL = 7507/11/91FBAC = MDL (LOD)05/28/92NCGQS = 6 (2L Std)06/30/932L Std = 1.4 (pre- Jan. 2010)11/04/94<5.0<5.0<5.0<5.0<5.0<5.02L Std = 6 (Jan. 2010)12/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/98<5.0<5.05 R<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.006/04/02<5.0<5.0<5.0sr03/12/03<5.0<5.0<5.0<5.0ht06/18/03<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0ic, cc06/22/04<5.0<5.0<5.0ic, cc11/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.1<0.11 J<0.10.11.012/12/07<0.1<0.11 J0.2 J0.11.006/17/08<0.10.7 J<0.11 J0.9 J0.4 J0.11.0ic, cc11/05/08<0.10.6 J<0.1<0.10.9 J0.2 J0.11.005/19/09<0.380.63 J<0.38<0.381.90.74 J0.381.011/18/09<0.38<0.38<0.38<0.381.1<0.380.381.006/21/10<0.1<0.10.59 J<0.10.95 J0.77 J0.11.011/18/10<0.381<0.38<0.380.9 J0.65 J0.381.0injection event (03-29-11)05/23/11<0.79<0.79<0.79<0.790.87 J0.96 J0.791.008/23/110.791.0injection event (09-28-11)11/15/11<0.79<0.79<0.79<0.79<0.790.791.002/21/120.191.0injection event (04-14-12)06/05/12<0.19<0.19<0.19<0.19<0.190.191.010/09/120.191.0injection event (09-13-12)11/12/12<0.19<0.19<0.190.79 J0.6 J0.191.002/18/130.191.005/13/13<0.19<0.19<0.190.89 J1.50.191.008/21/130.191.011/11/13<0.19<0.19<0.191.30.63 J0.191.002/10/140.191.005/12/14<0.19<0.19<0.191.12.70.191.008/18/140.191.011/11/14<0.19<0.19<0.191.20.64 J0.191.002/23/150.191.005/12/15<0.19<0.19<0.191.01.90.191.008/24/150.191.011/10/15<0.19<0.19<0.191.41.10.191.002/22/160.191.005/19/16<0.19<0.19<0.191.02.70.191.008/23/1611/16/16<0.19<0.19<0.191.51.50.191.002/22/170.191.005/30/17<0.19<0.19<0.191.12.20.191.008/22/170.191.011/14/17<0.19<0.19<0.191.20.63 J0.191.002/18/180.191.005/14/18<0.19<0.19<0.192.80.85 J0.191.008/24/1811/12/18<0.19<0.19<0.193.50.67 J0.191.002/14/190.191.005/20/19<0.19<0.19<0.193.70.64 J0.191.008/27/190.191.011/19/19<0.19<0.19<0.193.80.56 J0.191.002/24/200.191.005/19/20<0.19<0.19<0.193.50.58 J0.191.008/18/2011/16/20<0.19<0.19<0.193.51.00.191.002/16/210.191.005/19/21<0.19<0.19<0.194.2<0.190.191.011/23/21<0.19<0.19<0.193.5<0.190.191.005/23/22<0.19<0.19<0.193.7<0.190.191.011/07/22<0.19<0.19<0.192.4<0.190.191.005/03/23<0.19<0.19<0.19<0.193.30.191.011/20/23<1.0<1.0<1.0<1.02.41.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 1,4-dichlorobenzene04/17/90MCL = 7507/11/91FBAC = MDL (LOD)05/28/92NCGQS = 6 (2L Std)06/30/932L Std = 1.4 (pre- Jan. 2010)11/04/94<5.0<5.0<5.0<5.02L Std = 6 (Jan. 2010)12/20/94<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.011/02/986 R<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/005<5.0<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0<5.0<5.0<5.0<5.006/04/025 J<5.0<5.0<5.0<5.0<5.0<5.0sr03/12/035 J<5.0<5.0<5.0<5.0<5.0<5.0ht06/18/03<5.0<5.0<5.0<5.0<5.0<5.0<5.012/08/035 J<5.0<5.0<5.0<5.0<5.0<5.0ic, cc06/22/045 J<5.0<5.0<5.0<5.0<5.0<5.0ic, cc11/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.06<5.0<5.0<5.005/22/066<5.0<5.06<5.0<5.0<5.011/27/066<5.0<5.05<5.0<5.0<5.006/12/075<0.1<0.161.40.6 J<0.11.90.11.012/12/075.90.4 J<0.16.11 J0.2 J0.97 J1.60.11.006/17/085.2 J0.5 J<0.16.4 J1.4 J0.3 J0.8 J1.7 J<0.10.11.0ic, cc11/05/085.30.3 J<0.16.21.41 J0.2 J1.91.10.11.005/19/096.80.47 J<0.386.921.71.22.41.50.381.011/18/095.90.55 J<0.386.61.91.61.92.91.40.381.006/21/106.20.54 J<0.15.91.81.41.11.3<0.10.11.011/18/107.10.75 J<0.386.62<0.381.12.8<0.380.381.0injection event (03-29-11)05/23/116.3<0.79<0.796.920.93 J1.32.3<0.790.791.008/23/112.11.33.2<0.790.791.0injection event (09-28-11)11/15/117.4<0.79<0.796.71.6<0.7923.1<0.790.791.002/21/121.80.76 J2.9<0.190.191.0injection event (04-14-12)06/05/124.5<0.19<0.194.8<0.19<0.19<0.19<0.19<0.190.191.010/09/121.61.33.1<0.190.191.0injection event (09-13-12)11/12/127.10.64 J<0.197.62.2<0.192.13.30.48 J0.191.002/18/132.20.77 J2.50.59 J0.191.005/13/136.60.53 J<0.197.82.111.62.310.191.008/21/132.21.82.70.73 J0.191.011/11/136.8<0.19<0.196.32.412.03.50.43 J0.191.002/10/142.3<0.191.9<0.190.191.005/12/148.20.57 J<0.197.52.01.31.83.3<0.190.191.008/18/142.51.24.1<0.190.191.011/11/147.2<0.19<0.196.82.5<0.192.43.7<0.190.191.002/23/152.2<0.192.6<0.190.191.005/12/157.6<0.19<0.196.52.01.11.92.8<0.190.191.008/24/152.21.63.7<0.190.191.011/10/157.10.67 J<0.196.72.40.51 J2.34.1<0.190.191.002/22/162.10.79 J2.3<0.190.191.005/19/167.7<0.19<0.196.42.21.72.32.7<0.190.191.008/23/1611/16/166.7<0.19<0.196.72.51.72.34.1<0.190.191.002/22/172.61.23.2<0.190.191.005/30/178.0<0.19<0.197.52.11.71.93.2<0.190.191.008/22/172.31.54.7<0.190.191.011/14/176.7<0.19<0.196.12.11.22.53.3<0.190.191.002/18/181.13.4<0.190.191.005/14/188.0<0.19<0.197.82.11.73.14.1<0.190.191.008/24/181.81.23.7<0.190.191.011/12/187.6<0.19<0.196.22.00.84 J2.44.5<0.190.191.002/14/191.50.97 J1.6<0.190.191.005/20/197.4<0.19<0.196.21.61.31.82.0<0.190.191.008/27/19<0.19<0.19<0.19<0.190.191.011/19/196.5<0.19<0.196.41.60.89 J2.54.2<0.190.191.002/24/202.21.12.6<0.190.191.005/19/206.8<0.19<0.196.21.91.31.72.6<0.190.191.008/18/20<0.191.73.8<0.190.191.011/16/208.5<0.19<0.195.82.41.62.13.9<0.190.191.002/16/211.9<0.19<0.19<0.190.191.005/19/219.5<0.19<0.197.52.82.32.43.2<0.190.191.011/23/218.1<0.19<0.197.42.52.02.04.0<0.190.191.005/23/227.8<0.19<0.197.62.42.12.33.1<0.190.191.011/07/227.6<0.19<0.197.62.21.53.34.0<0.190.191.005/03/237.4<0.19<0.196.8<0.19<0.19<0.192.12.3<0.19<0.190.191.011/20/236.7<1.0<1.05.7<1.0<1.0<1.02.14.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2MW-301 1,4-dioxane04/17/90MCL =07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 3 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/1005/23/1108/23/1111/15/1102/21/1206/05/1210/09/1211/12/1202/18/1305/13/1308/21/1311/11/1302/10/1405/12/1408/18/1411/11/1402/23/1505/12/1508/24/1511/10/1502/22/1605/19/1608/23/1611/16/1602/22/1705/30/1708/22/1711/14/1702/18/1805/14/1808/24/1811/12/18<1.2<1.23.5190681.22.012/17/181404.08.0verification02/14/1905/20/19<1.2<1.22.61901506.010.008/27/1911/19/19<0.80<0.803.31601400.80,4.0,8.02.0,10,2002/24/200.82.005/19/20<0.80<0.803.11601400.80,4.02.0,1008/18/2011/16/20<0.80<0.804.4150 D71 D0.80,4.02.0,1002/16/210.82.005/19/21<0.80<0.802.8160 D130 D4.010.011/23/21<0.80<0.805.9170 D150 D4.010.005/23/22<0.80<0.802.5200 D140 D4.010.011/07/22<0.27<0.276.5200 D1700.271.405/03/23<0.27<0.272.51201600.271.411/20/23<2.0<2.07.51361702.0CLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6MW-6RMW-7MW-7RMW-13MW-14A MW-14BMDLMRLQA/QC 1,4-dioxane04/17/90MCL =07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 3 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/1005/23/1108/23/1111/15/1102/21/1206/05/1210/09/1211/12/1202/18/1305/13/1308/21/1311/11/1302/10/1405/12/1408/18/1411/11/1402/23/1505/12/1508/24/1511/10/1502/22/1605/19/1608/23/1611/16/1602/22/1705/30/1708/22/1711/14/1702/18/1805/14/1808/24/1811/12/18517.4<1.228017247241241.22.012/17/182204.08.0verification02/14/1905/20/19768.8<1.231019195927226.010.008/27/19251827171.22.011/19/19687.51.3 J21023188538180.80,4.0,8.02.0,10,2002/24/20261935200.82.005/19/20767.20.90 J22025187833200.80,4.02.0,1008/18/20281731180.82.011/16/20140 D100.94 J210 D262163 D35210.80,4.0,8.02.0,10,2002/16/21181725180.82.005/19/2175 D9.01.2 J240 D24205428220.80,4.0,8.02.0,10,2011/23/21808.51.1 J230 D32246138220.80,4.0,8.02.0,10,2005/23/228711.00.94 J250 D32267037230.80,4.0,8.02.0,10,2011/07/22879.7<0.27258 D372811044230.271.405/03/2376132.42000.42 J2324813325<0.270.271.411/20/2384.111.72.2222<2.013.722.378.849.526.4<2.02.0MW-16MW-17MW-20MDLMRLQA/QCCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-15MW-21d2MW-21dMW-21sMW-22MW-23MW-24MW-301 dichlorodifluoromethane04/17/90MCL =07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 1000 (2L Std)06/30/932L Std = 1400 (pre- Jan. 2010)11/04/942L Std = 1000 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/080.8 J<0.10.15.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.10.15.005/19/09<0.38<0.38<0.380.385.011/18/0906/21/10<0.091<0.091<0.0910.0915.011/18/10injection event (03-29-11)05/23/11<0.56<0.56<0.560.565.008/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<0.2<0.2<0.20.25.010/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<0.2<0.20.92 J0.25.008/21/1311/11/1302/10/1405/12/14 <0.2 <0.2<0.20.25.008/18/1411/11/1402/23/1505/12/15<0.200.76 J1.6 J0.205.008/24/1511/10/1502/22/1605/19/16 <0.20 <0.20 <0.20 0.205.008/23/1611/16/1602/22/1705/30/17<0.20<0.20<0.200.205.008/22/1711/14/1702/18/1805/14/18<0.20<0.20<0.200.205.008/24/1811/12/1802/14/1905/20/19 <0.20 <0.20 <0.20 0.201.008/27/1911/19/1902/24/2005/19/20<0.20<0.20<0.200.201.008/18/2011/16/2002/16/2105/19/21<0.20<0.20<0.200.201.011/23/2105/23/22<0.20<0.20<0.200.201.011/07/2205/03/23<0.20<0.20<0.200.201.011/20/23MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE dichlorodifluoromethane 04/17/90MCL =07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 1000 (2L Std)06/30/932L Std = 1400 (pre- Jan. 2010)11/04/942L Std = 1000 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/08<0.1<0.10.15.0ic, cc11/05/08<0.1<0.10.73 J<0.1<0.1<0.1<0.1<0.10.15.005/19/09<0.38<0.38<0.38<0.380.385.011/18/0906/21/10<0.091<0.091<0.091<0.0910.0915.011/18/10injection event (03-29-11)05/23/11<0.56<0.56<0.56<0.560.565.008/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<0.2<0.2<0.2<0.20.25.010/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<0.2<0.2<0.2<0.2<0.2<0.20.25.008/21/1311/11/1302/10/1405/12/14 <0.2 <0.2<0.2<0.2<0.2<0.20.25.008/18/1411/11/1402/23/1505/12/15<0.20<0.20<0.20<0.20<0.20<0.200.205.008/24/1511/10/1502/22/1605/19/16 <0.20 <0.20<0.20<0.20<0.20<0.200.205.008/23/1611/16/1602/22/1705/30/17<0.20<0.20<0.20<0.20<0.20<0.200.205.008/22/1711/14/1702/18/1805/14/18<0.20<0.20<0.20<0.20<0.20<0.200.25.008/24/1808/22/1702/14/1905/20/19 <0.20 <0.20<0.20<0.20<0.20<0.200.21.008/27/1911/19/1902/24/2005/19/20<0.20<0.20<0.20<0.20<0.20<0.200.21.008/18/2011/16/2002/16/2105/19/21<0.20<0.20<0.20<0.20<0.20<0.200.21.011/23/2105/23/22<0.20<0.20<0.20<0.20<0.20<0.200.21.011/07/2205/03/23<0.20<0.20<0.20<0.20<0.20<0.20<0.20<0.200.21.011/20/23MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMMW-21d2MW-301 1,1-dichloroethane04/17/90<5.0<5.0<5.0<5.0<5.0MCL =07/11/91<5.0<5.0<5.0<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0<5.0<5.0<5.09.513NCGQS = 6 (2L Std)06/30/93<5.0<5.0<5.0<5.0<5.014.810.82L Std = 70 (pre- Jan. 2010)11/04/94<5.0<5.0<5.0<5.024302L Std = 6 (Jan. 2010)12/20/94<5.0<5.0<5.0<5.0161402/02/95<5.0<5.0<5.0<5.0161803/13/95<5.0<5.0<5.0<5.0<5.0<5.011 J11 Jcc11/15/95<5.0<5.0<5.0<5.0<5.0<5.01418 Jis07/25/96<5.0<5.0<5.0<5.0131102/25/97<5.0<5.0<5.0<5.0<5.0<5.091009/03/97<5.0<5.0<5.016905/04/98<5.0<5.0<5.0<5.0<5.0<5.06811/02/9810 R<5.0<5.011904/26/99<5.0<5.0<5.06811/22/99<5.0<5.0<5.08705/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0711/29/00<5.0<5.0<5.071106/05/01<5.0<5.0<5.0<5.0<5.0<5.0611/13/01<5.07 J6 Jcc06/04/02<5.0<5.0<5.0cc03/12/03<5.0<5.0<5.0<5.0ht06/18/03<5.0<5.0<5.0<5.06 Jic, cc, ss12/08/03<5.0<5.06 Jic, cc06/22/04<5.0<5.07 Jic, cc11/30/04<5.0<5.0<5.006/01/05<5.0<5.0611/02/05<5.07705/22/06<5.0<5.0611/27/06<5.06506/12/07<0.2<0.24.3 J7.50.25.012/12/07<0.2<0.24.3 J5.90.25.006/17/08<0.2<0.2<0.25 J3.9 J6.2 J0.25.0ic, cc11/05/08<0.2<0.2<0.2<0.24.6 J4.1 J0.25.005/19/09<0.33<0.33<0.33<0.336.480.335.011/18/09<0.33<0.33<0.33<0.335.67.50.335.006/21/10<0.05<0.05<0.05<0.054.7 J6.60.055.011/18/10<0.33<0.33<0.33<0.334.1 J70.335.0injection event (03-29-11)05/23/11<0.08<0.08<0.08<0.083.4 J5.90.085.008/23/110.085.0injection event (09-28-11)11/15/11<0.08<0.08<0.082.8 J5.20.085.002/21/120.135.0injection event (04-14-12)06/05/12<0.13<0.13<0.131.1 J3.7 J0.135.010/09/120.135.0injection event (09-13-12)11/12/12<0.13<0.13<0.132.8 J6.30.135.002/18/130.135.005/13/13<0.13<0.13<0.133.3 J60.135.008/21/130.135.011/11/13<0.132.1 J<0.133.6 J4.2 J0.135.002/10/140.135.005/12/14<0.13<0.13<0.133.9 J7.30.135.008/18/140.135.011/11/14<0.13<0.13<0.134.1 J4.9 J0.135.002/23/150.135.005/12/15<0.13<0.13<0.133.8 J6.30.135.008/24/150.135.011/10/15<0.13<0.13<0.134.0 J5.90.135.002/22/160.135.005/19/16<0.13<0.13<0.133.2 J5.20.135.008/23/1611/16/16<0.13<0.13<0.134.0 J5.40.135.002/22/170.135.005/30/17<0.13<0.13<0.133.0 J5.40.135.008/22/170.135.011/14/17<0.13<0.13<0.134.0 J4.7 J0.135.002/18/180.135.005/14/18<0.13<0.13<0.134.3 J2.1 J0.135.008/24/1811/12/18<0.13<0.13<0.135.01.60.131.002/14/190.131.005/20/19<0.13<0.13<0.135.22.30.131.008/27/190.131.011/19/19<0.13<0.13<0.134.51.90.131.002/24/200.131.005/19/20<0.13<0.13<0.132.91.60.131.008/18/2011/16/20<0.13<0.13<0.133.63.30.131.002/16/210.131.005/19/21<0.13<0.13<0.134.33.30.131.011/23/21<0.13<0.13<0.133.63.10.131.005/23/22<0.13<0.13<0.134.02.60.131.011/07/22<0.13<0.13<0.132.72.10.131.005/03/23<0.13<0.13<0.132.13.20.131.011/20/23<1.0<1.0<1.02.32.21.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 1,1-dichloroethane04/17/90<5.0<5.0MCL =07/11/91<5.0<5.0FBAC = MDL (LOD)05/28/9254<5.0<5.0NCGQS = 6 (2L Std)06/30/9339.8<5.0<5.02L Std = 70 (pre- Jan. 2010)11/04/94436<5.0<5.02L Std = 6 (Jan. 2010)12/20/9420<5.0<5.0<5.002/02/9528<5.0 <5.0<5.003/13/9532 J<5.0<5.0<5.0cc11/15/95386<5.0<5.0is07/25/96728<5.0<5.002/25/975712<5.0<5.009/03/97719<5.0<5.005/04/985610<5.0<5.011/02/98679<5.0<5.004/26/99529<5.0<5.011/22/99459<5.0<5.005/23/00469<5.0<5.02442<5.011/29/00499<5.0<5.04236<5.006/05/01427<5.0<5.02535<5.011/13/0149 J10 J<5.0<5.041 J33 J<5.0cc06/04/0231 J7 J<5.0<5.022 J20 J<5.0cc03/12/0330 J9 J<5.0<5.024 J14 J<5.0ht06/18/0330 J8 J<5.0<5.022 J22 J<5.0ic, cc, ss12/08/0326 J5 J<5.0<5.022 J20 J<5.0ic, cc06/22/0436 J6 J<5.0<5.025 J24 J<5.0ic, cc11/30/0419 J<5.0<5.0<5.016 J8 J<5.0ic, cc06/01/05265<5.0<5.01918<5.011/02/05319<5.0<5.02825705/22/06196<5.0<5.02020711/27/06195<5.0<5.01717706/12/0718.75.6<0.2<0.216.215.43.7 J25.70.25.012/12/07175.6<0.2<0.212.28.54.9 J23.40.25.006/17/0811 J5.2 J<0.2<0.213 J13.3 J3.1 J26.2 J3.4 J0.25.0ic, cc11/05/0811.73.7 J<0.2<0.213.213.10.6 J25.618.60.25.005/19/09175.2<0.33<0.331616527210.335.011/18/09145.8<0.33<0.331414730190.335.006/21/10113.9 J<0.05<0.05119.94.8 J16130.055.011/18/10124.6 J<0.33<0.3315137.228190.335.0injection event (03-29-11)05/23/117.82.7 J<0.08<0.08109621110.085.008/23/11131427150.085.0injection event (09-28-11)11/15/1193.2 J<0.08<0.088.610621140.085.002/21/12111327120.135.0injection event (04-14-12)06/05/126.10.56 J<0.13<0.139.36.6522120.135.010/09/129.21221160.135.0injection event (09-13-12)11/12/128.23 J<0.13<0.139.98.5721160.135.002/18/13119.224170.135.005/13/139.12.5 J<0.13<0.1311107.122140.135.008/21/139.71120140.135.011/11/136.8<0.13<0.13<0.138.67.05.715100.135.002/10/149.88.919120.135.005/12/148.93.4 J<0.13<0.139.49.37.419100.135.008/18/14119.620140.135.011/11/146.22.4 J<0.13<0.138.96.75.614110.135.002/23/158.99.218100.135.005/12/157.31.9 J<0.13<0.138.89.07.1177.80.135.008/24/158.06.713100.135.011/10/156.32.3 J9.28.26.415100.135.002/22/165.05.5117.70.135.005/19/165.91.7 J<0.13<0.137.37.26.413100.135.008/23/1611/16/164.8 J1.4 J<0.13<0.137.97.46.2139.00.135.002/22/178.07.0159.20.135.005/30/175.91.6 J<0.13<0.137.27.75.4138.90.135.008/22/176.87.0139.40.135.011/14/175.81.8 J<0.13<0.139.18.27.816110.135.002/18/185.04.9 J116.20.135.005/14/184.2 J1.2 J<0.13<0.136.55.25.4138.10.135.008/24/187.15.4139.30.131.011/12/184.11.2<0.13<0.135.65.65.0137.80.131.002/14/194.25.28.56.60.131.005/20/195.41.1<0.13<0.134.95.44.59.67.10.131.008/27/197.56.6117.80.131.011/19/193.30.81 J<0.13<0.135.54.65.18.05.80.131.002/24/205.85.19.45.80.131.005/19/202.50.71 J<0.13<0.133.63.63.86.64.70.131.008/18/206.85.28.66.60.131.011/16/203.6<0.13<0.13<0.135.35.04.49.45.70.131.002/16/214.14.93.34.60.131.005/19/214.61.3<0.13<0.135.55.54.99.37.00.131.011/23/213.70.79 J<0.13<0.134.84.13.56.86.00.131.005/23/2240.76 J<0.13<0.134.95.04.67.76.00.131.011/07/222.4<0.13<0.13<0.134.65.34.67.95.00.131.005/03/233.10.57 J<0.130.14 J<0.133.73.75.37.24.9<0.130.131.011/20/232.2<1.0<1.0<1.0<1.01.32.73.37.04.2<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2MW-301 1,2-dichloroethane04/17/90MCL =507/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.4 (2L Std)06/30/932L Std = 0.38 (pre- Jan. 2010)11/04/942L Std = 0.4 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/07<0.1<0.1<0.1<0.10.11.012/12/07<0.1<0.1<0.1<0.10.11.006/17/08<0.1<0.1<0.1<0.1<0.1<0.10.11.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.10.11.005/19/09<0.65<0.65<0.65<0.65<0.65<0.650.651.011/18/09<0.65<0.65<0.65<0.65<0.65<0.650.651.006/21/10<0.082<0.082<0.082<0.082<0.082<0.0820.0821.011/18/10<0.65<0.65<0.65<0.65<0.65<0.650.651.0injection event (03-29-11)05/23/11<0.47<0.47<0.47<0.47<0.47<0.470.471.008/23/110.471.0injection event (09-28-11)11/15/11<0.47<0.47<0.47<0.47<0.470.471.002/21/120.211.0injection event (04-14-12)06/05/12<0.21<0.21<0.21<0.21<0.210.211.010/09/120.211.0injection event (09-13-12)11/12/12<0.21<0.21<0.21<0.21<0.210.211.002/18/130.211.005/13/13<0.21<0.21<0.21<0.21<0.210.211.008/21/130.211.011/11/13<0.21<0.21<0.21<0.21<0.210.211.002/10/140.211.005/12/14<0.21<0.21<0.21<0.21<0.210.211.008/18/140.211.011/11/14<0.21<0.21<0.21<0.21<0.210.211.002/23/150.211.005/12/15<0.21<0.21<0.21<0.21<0.210.211.008/24/150.211.011/10/15<0.21<0.21<0.21<0.21<0.210.211.002/22/160.211.005/19/16<0.21<0.21<0.21<0.21<0.210.211.008/23/1611/16/16<0.21<0.21<0.21<0.21<0.210.211.002/22/170.211.005/30/17<0.21<0.21<0.21<0.21<0.210.211.008/22/170.211.011/14/17<0.21<0.21<0.21<0.21<0.210.211.002/18/180.211.005/14/18<0.21<0.21<0.21<0.21<0.210.211.008/24/1811/12/18<0.21<0.21<0.21<0.21<0.210.211.002/14/190.211.005/20/19<0.21<0.21<0.21<0.21<0.210.211.008/27/190.211.011/19/19<0.21<0.21<0.21<0.21<0.210.211.002/24/200.211.005/19/20<0.21<0.21<0.21<0.21<0.210.211.008/18/2011/16/20<0.21<0.21<0.21<0.21<0.210.211.002/16/210.211.005/19/21<0.21<0.21<0.21<0.21<0.210.211.011/23/21<0.21<0.21<0.21<0.21<0.210.211.005/23/22<0.21<0.21<0.21<0.21<0.210.211.011/07/22<0.21<0.21<0.21<0.21<0.210.211.005/03/23<0.21<0.21<0.21<0.21<0.210.211.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 1,2-dichloroethane04/17/90MCL =507/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.4 (2L Std)06/30/932L Std = 0.38 (pre- Jan. 2010)11/04/942L Std = 0.4 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/070.8 J<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.012/12/07<0.1<0.1<0.1<0.1<0.1<0.1<0.10.5 J0.11.006/17/080.6 J<0.1<0.1<0.1<0.1<0.1<0.10.5 J<0.10.11.0ic, cc11/05/080.5 J<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.005/19/090.94 J<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.650.651.011/18/09<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.650.651.006/21/100.54 J<0.082<0.082<0.082<0.082<0.082<0.082<0.082<0.0820.0821.011/18/10<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.650.651.0injection event (03-29-11)05/23/110.6 J<0.47<0.47<0.47<0.47<0.47<0.47<0.47<0.470.471.008/23/11<0.47<0.470.62 J<0.470.471.0injection event (09-28-11)11/15/110.6 J<0.47<0.47<0.47<0.47<0.47<0.470.53 J<0.470.471.002/21/12<0.21<0.21<0.21<0.210.211.0injection event (04-14-12)06/05/12<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.010/09/12<0.21<0.21<0.21<0.210.211.0injection event (09-13-12)11/12/120.62 J<0.21<0.21<0.21<0.21<0.21<0.210.52 J<0.210.211.002/18/13<0.21<0.210.62 J<0.210.211.005/13/130.45 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/21/13<0.21<0.210.60 J<0.210.211.011/11/130.46 J<0.21<0.21<0.21<0.21<0.21<0.210.56 J0.43 J0.211.002/10/14<0.21<0.21<0.21<0.210.211.005/12/14<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/18/14<0.21<0.210.61 J<0.210.211.011/11/14<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/23/15<0.21<0.21<0.21<0.210.211.005/12/15<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/24/15<0.21<0.21<0.21<0.210.211.011/10/15<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/22/16<0.21<0.21<0.21<0.210.211.005/19/16<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/23/1611/16/16<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/22/17<0.21<0.21<0.21<0.210.211.005/30/17<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/22/17<0.21<0.21<0.21<0.210.211.011/14/17<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/18/18<0.21<0.21<0.21<0.210.211.005/14/18<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/24/18<0.21<0.21<0.21<0.210.211.011/12/18<0.21<0.21<0.21<0.21<0.21<0.21<0.210.49 J<0.210.211.002/14/19<0.21<0.21<0.21<0.210.211.005/20/19<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/27/19<0.21<0.21<0.21<0.210.211.011/19/19<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/24/20<0.21<0.21<0.21<0.210.211.005/19/20<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/18/20<0.21<0.21<0.21<0.210.211.011/16/20<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/16/21<0.21<0.21<0.21<0.210.211.005/19/21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.011/23/21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.005/23/22<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.011/07/22<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.005/03/230.25 J<0.21<0.21<0.21<0.21<0.21<0.21<0.210.35 J<0.21<0.210.211.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2MW-301 1,1-dichloroethene04/17/90<5.0<5.0<5.0<5.0<5.0MCL = 707/11/91<5.0<5.0<5.0<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0NCGQS = 7 (2L Std)06/30/93<5.0<5.0<5.0<5.0<5.0<5.0<5.011/04/94<5.0<5.0<5.0<5.0<5.0<5.012/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.006/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.006/22/04<5.0<5.0<5.011/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.1<0.1<0.1<0.10.15.012/12/07<0.1<0.1<0.1<0.10.15.006/17/08<0.1<0.1<0.1<0.1<0.1<0.10.15.011/05/08<0.1<0.1<0.1<0.1<0.1<0.10.15.005/19/09<0.24<0.24<0.24<0.24<0.24<0.240.245.011/18/09<0.24<0.24<0.24<0.24<0.24<0.240.245.006/21/10<0.15<0.15<0.15<0.15<0.15<0.150.155.011/18/10<0.24<0.24<0.24<0.24<0.24<0.240.245.0injection event (03-29-11)05/23/11<0.6<0.6<0.6<0.6<0.6<0.60.65.008/23/110.65.0injection event (09-28-11)11/15/11<0.6<0.6<0.6<0.6<0.60.65.002/21/120.215.0injection event (04-14-12)06/05/12<0.21<0.21<0.21<0.21<0.210.215.010/09/120.215.0injection event (09-13-12)11/12/12<0.21<0.21<0.21<0.21<0.210.215.002/18/130.215.005/13/13<0.21<0.21<0.21<0.21<0.210.215.008/21/130.215.011/11/13<0.21<0.21<0.21<0.21<0.210.215.002/10/140.215.005/12/14<0.21<0.21<0.21<0.21<0.210.215.008/18/140.215.011/11/14<0.21<0.21<0.21<0.21<0.210.215.002/23/150.215.005/12/15<0.21<0.21<0.21<0.21<0.210.215.008/24/150.215.011/10/15<0.21<0.21<0.21<0.21<0.210.215.002/22/160.215.005/19/16<0.21<0.21<0.21<0.21<0.210.215.008/23/1611/16/16<0.21<0.21<0.21<0.21<0.210.215.002/22/170.215.005/30/17<0.21<0.21<0.21<0.21<0.210.215.008/22/170.215.011/14/17<0.21<0.21<0.21<0.21<0.210.215.002/18/180.215.005/14/18<0.21<0.21<0.21<0.21<0.210.215.008/24/1811/12/18<0.21<0.21<0.21<0.21<0.210.211.002/14/190.211.005/20/19<0.21<0.21<0.21<0.21<0.210.211.008/27/190.211.011/19/19<0.21<0.21<0.21<0.21<0.210.211.002/24/200.211.005/19/20<0.21<0.21<0.21<0.21<0.210.211.008/18/2011/16/20<0.21<0.21<0.21<0.21<0.210.211.002/16/210.211.005/19/21<0.21<0.21<0.21<0.21<0.210.211.011/23/21<0.21<0.21<0.21<0.21<0.210.211.005/23/22<0.21<0.21<0.21<0.21<0.210.211.011/07/22<0.21<0.21<0.21<0.21<0.210.211.005/03/23<0.21<0.21<0.21<0.21<0.210.211.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 1,1-dichloroethene04/17/90<5.0<5.0MCL = 707/11/91<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0NCGQS = 7 (2L Std)06/30/93<5.0<5.0<5.011/04/94<5.0<5.0<5.0<5.012/20/94<5.0<5.0<5.0 <5.002/02/95<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.007/25/966<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.009/03/975<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0<5.0<5.0<5.0<5.006/04/02<5.0<5.0<5.0<5.0<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/22/04<5.0<5.0<5.0<5.0<5.0<5.0<5.011/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.0<5.0<5.0<5.0<5.005/22/06<5.0<5.0<5.0<5.0<5.0<5.0<5.011/27/06<5.0<5.0<5.0<5.0<5.0<5.0<5.006/12/071.5 J<0.1<0.1<0.10.6 J<0.1<0.11.4 J0.15.012/12/071.4 J<0.1<0.1<0.10.3 J<0.1<0.11.5 J0.15.006/17/080.8 J<0.1<0.1<0.10.6 J<0.1<0.11.5 J<0.10.15.0ic, cc11/05/080.7 J<0.1<0.1<0.10.4 J0.3 J<0.21.1 J0.4 J0.15.005/19/091.1 J<0.24<0.24<0.240.43 J<0.24<0.241.1 J0.62 J0.245.011/18/090.74 J<0.24<0.24<0.240.43 J<0.24<0.241.4 J0.41 J0.245.006/21/100.73 J<0.15<0.15<0.15<0.15<0.15<0.150.71 J<0.150.155.011/18/100.73 J<0.24<0.24<0.240.41 J<0.24<0.241.4 J<0.240.245.0injection event (03-29-11)05/23/110.61 J<0.6<0.6<0.6<0.6<0.6<0.61.2 J<0.60.65.008/23/11<0.6<0.61.3 J<0.60.65.0injection event (09-28-11)11/15/11<0.6<0.6<0.6<0.6<0.6<0.6<0.60.75 J<0.60.65.002/21/12<0.21<0.210.98 J<0.210.215.0injection event (04-14-12)06/05/12<0.21<0.21<0.21<0.21<0.21<0.21<0.210.58 J<0.210.215.010/09/12<0.21<0.21<0.21<0.210.215.0injection event (09-13-12)11/12/120.43 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.002/18/13<0.21<0.210.74 J<0.210.215.005/13/130.8 J<0.21<0.21<0.21<0.21<0.21<0.210.44 J<0.210.215.008/21/13<0.21<0.210.47 J<0.210.215.011/11/130.49 J<0.21<0.21<0.21<0.21<0.21<0.210.59 J<0.210.215.002/10/14<0.21<0.210.51 J<0.210.215.005/12/140.72 J<0.21<0.21<0.21<0.21<0.21<0.210.59 J<0.210.215.008/18/14<0.21<0.210.82 J<0.210.215.011/11/140.41 J<0.21<0.21<0.21<0.21<0.21<0.210.47 J<0.210.215.002/23/15<0.21<0.210.70 J<0.210.215.005/12/15<0.21<0.21<0.21<0.21<0.21<0.21<0.210.55 J<0.210.215.008/24/15<0.21<0.210.59 J<0.210.215.011/10/15<0.21<0.21<0.21<0.21<0.21<0.21<0.210.57 J<0.210.215.002/22/16<0.21<0.21<0.21<0.210.215.005/19/16<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.008/23/1611/16/16<0.21<0.21<0.21<0.21<0.21<0.21<0.210.45 J<0.210.215.002/22/17<0.21<0.210.44 J<0.210.215.005/30/17<0.21<0.21<0.21<0.21<0.21<0.21<0.210.42 J<0.210.215.008/22/17<0.21<0.210.49 J<0.210.215.011/14/17<0.21<0.21<0.21<0.21<0.21<0.21<0.210.45 J<0.210.215.002/18/18<0.21<0.21<0.21<0.210.215.005/14/18<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.008/24/18<0.21<0.21<0.21<0.210.211.011/12/18<0.21<0.21<0.21<0.21<0.21<0.21<0.210.44 J<0.210.211.002/14/19<0.21<0.21<0.21<0.210.211.005/20/19<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/27/19<0.21<0.21<0.21<0.210.211.011/19/19<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/24/20<0.21<0.21<0.21<0.210.211.005/19/20<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/18/20<0.21<0.21<0.21<0.210.211.011/16/20<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/16/21<0.21<0.21<0.21<0.210.211.005/19/21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.011/23/21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.005/23/22<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.011/07/22<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.005/03/23<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2MW-301 cis-1,2-dichloroethene04/17/90<5.0<5.0<5.0<5.0<5.0MCL = 7007/11/91<5.0<5.0<5.0<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0NCGQS = 70 (2L Std)06/30/93<5.0<5.0<5.0<5.0<5.0<5.0<5.011/04/948 R<5.0<5.0<5.061012/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0is07/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.08505/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/988 R<5.0<5.05504/26/99<5.0<5.0<5.0<5.0611/22/99<5.0<5.0<5.05505/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0611/29/00<5.0<5.0<5.0<5.01006/05/01<5.0<5.0<5.0<5.0<5.0<5.0611/13/01<5.0<5.06 Jcc06/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.0ht06/18/03<5.0<5.0<5.0<5.06 Jic, cc, ss12/08/03<5.0<5.06 Jic, cc06/22/04<5.0<5.07 Jic, cc11/30/04<5.0<5.0<5.006/01/05<5.0<5.0611/02/05<5.0<5.0605/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.1<0.12.9 J5.60.15.012/12/07<0.1<0.12.5 J3.3 J0.15.006/17/08<0.11 J<0.15 J2.4 J4.8 J0.15.0ic, cc11/05/08<0.10.9 J<0.1<0.13.2 J2.4 J0.15.005/19/09<0.360.67 J<0.36<0.364.3 J5.80.365.011/18/09<0.361 J<0.36<0.363.5 J3.6 J0.365.006/21/10<0.075<0.0750.68 J<0.0752.8 J5.80.0755.011/18/10<0.361.6 J<0.36<0.363.1 J4.2 J0.365.0injection event (03-29-11)05/23/11<0.72<0.72<0.72<0.722.1 J4.7 J0.725.008/23/11injection event (09-28-11)11/15/11<0.72<0.72<0.722.3 J2.9 J0.725.002/21/12injection event (04-14-12)06/05/12<0.15<0.15<0.152.1 J4 J0.155.010/09/12injection event (09-13-12)11/12/12<0.15<0.15<0.151.7 J2.4 J0.155.002/18/1305/13/13<0.15<0.15<0.152.4 J60.155.008/21/130.155.011/11/13<0.152.7 J<0.152.8 J1.9 J0.155.002/10/140.155.005/12/14<0.15<0.15<0.151.9 J5.60.155.008/18/140.155.011/11/14<0.15<0.15<0.152.3 J1.5 J0.155.002/23/150.155.005/12/15<0.15<0.15<0.152.2 J5.30.155.008/24/150.155.011/10/15<0.15<0.15<0.153.0 J2.2 J0.155.002/22/160.155.005/19/16<0.15<0.15<0.152.2 J5.00.155.008/23/1611/16/16<0.15<0.15<0.152.4 J2.3 J0.155.002/22/170.155.005/30/17<0.15<0.15<0.151.6 J3.3 J0.155.008/22/170.155.011/14/17<0.15<0.15<0.152.7 J0.91 J0.155.002/18/180.155.005/14/18<0.15<0.15<0.154.5 J1.5 J0.155.008/24/1811/12/18<0.15<0.15<0.154.00.88 J0.151.002/14/190.151.005/20/19<0.15<0.15<0.154.91.40.151.008/27/190.151.011/19/19<0.15<0.15<0.153.81.30.151.002/24/200.151.005/19/20<0.15<0.15<0.153.51.00.151.008/18/2011/16/20<0.15<0.15<0.153.22.00.151.002/16/210.151.005/19/21<0.15<0.15<0.153.21.20.151.011/23/21<0.15<0.15<0.153.21.40.151.005/23/22<0.15<0.15<0.152.91.00.151.011/07/22<0.15<0.15<0.15<0.152.50.151.005/03/23<0.15<0.15<0.150.82 J3.20.151.011/20/23<1.0<1.0<1.0<1.01.91.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE cis-1,2-dichloroethene04/17/90<5.0<5.0MCL = 7007/11/91<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0NCGQS = 70 (2L Std)06/30/93<5.0<5.0<5.011/04/9424<5.0<5.05812/20/9411<5.0<5.01102/02/9517<5.0<5.03903/13/9519<5.0<5.02111/15/9528<5.0<5.026 Jis07/25/9653<5.0<5.02302/25/9750<5.0<5.02309/03/9798<5.0<5.02205/04/9895<5.0<5.02011/02/98130<5.0<5.02004/26/99126<5.0<5.01911/22/99119<5.0<5.01105/23/00124<5.0<5.091112<5.011/29/00157<5.0<5.092013<5.006/05/01151<5.0<5.081614<5.011/13/01185 J6 J< 5.09 J25 J14 J<5.0cc06/04/021667<5.0<5.02013<5.003/12/03169 J7 J<5.0<5.020 J9 J<5.0ht06/18/03182 J10 J<5.0<5.023 J17 J<5.0ic, cc, ss12/08/03160 J6 J<5.0<5.026 J16 J<5.0ic, cc06/22/04198 J8 J<5.0<5.031 J21 J<5.0ic, cc11/30/04118 J<5.0<5.0<5.019 J8 J<5.0ic, cc06/01/051469<5.0<5.02624<5.011/02/0523214<5.0<5.03426<5.005/22/06978<5.0<5.02017<5.011/27/0618511<5.0<5.02719<5.006/12/0716611.8<0.11.2 J29.622.12.3 J53.60.15.012/12/0717811.4<0.11.1 J20.79.93.5 J570.15.006/17/08133 J11.7 J<0.11 J26.1 J18.8 J2.5 J60.1 J7.2 J0.15.0ic, cc11/05/081357.6<0.10.8 J2822.20.6 J63.933.70.15.005/19/091708.8<0.360.68 J35293.3 J59350.365.011/18/0916011<0.360.76 J34295.875380.365.006/21/101307.8<0.0750.58 J32243.5 J43250.0755.011/18/101507.9<0.360.73 J37274.9 J81360.365.0injection event (03-29-11)05/23/11944.5 J<0.72<0.7222183.8 J48190.725.008/23/11312977280.725.0injection event (09-28-11)11/15/111305.6<0.72<0.7221215.445290.725.002/21/12252163230.155.0injection event (04-14-12)06/05/121103.6 J<0.150.55 J<0.15154.7 J35220.155.010/09/1217178.5280.155.0injection event (09-13-12)11/12/121204.2 J<0.150.41 J229.15.413280.155.002/18/13265.235260.155.005/13/131403.3 J<0.15<0.15294.5 J5.632280.155.008/21/13284.735250.155.011/11/13110<0.15<0.150.48 J292.0 J4.8 J48180.155.002/10/1430846150.155.005/12/141302.9 J<0.150.41 J24114.2 J46140.155.008/18/14361883170.155.011/11/141102.3 J<0.15<0.1529134.7 J68160.155.002/23/15322085180.155.005/12/151401.9 J<0.15<0.1529195.374120.155.008/24/15261664160.155.011/10/15971.9 J<0.15<0.1526174.9 J70170.155.002/22/16181553170.155.005/19/16981.8 J<0.15<0.1527205.057210.155.008/23/1611/16/16971.4 J<0.15<0.1526184.1 J68190.155.002/22/17301982230.155.005/30/171200.97 J<0.15<0.1527233.6 J71220.155.008/22/17272284250.155.011/14/171302.2 J<0.15<0.1530235.796310.155.002/18/18221789310.155.005/14/18791.1 J<0.15<0.1524134.5 J77280.155.008/24/18281887330.151.011/12/18880.98 J<0.15<0.1524183.072250.151.002/14/19211961260.151.005/20/19980.89 J<0.151.319183.451270.151.008/27/19282269290.151.011/19/191000.88 J<0.15<0.1521174.361280.151.002/24/20181359200.151.005/19/20620.97 J<0.15<0.1516112.946170.151.008/18/20241567250.151.011/16/2095<0.15<0.15<0.1522163.369230.151.002/16/21181722210.151.005/19/2190<0.15<0.15<0.1520183.050230.151.011/23/21850.85 J<0.15<0.1517152.559280.151.005/23/22870.57 J<0.15<0.1516152.957210.151.011/07/2268<0.15<0.15<0.1513154.556240.151.005/03/23620.26 J<0.15<0.150.18 J12113.85620<0.150.151.011/20/2350.3<1.0<1.0<1.0<1.04.27.22.359.020.8<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-21d2MW-301 trans-1,2-dichloroethene04/17/90MCL = 10007/11/91FBAC = MDL (LOD)05/28/92NCGQS = 100 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/07<0.1<0.1<0.1<0.10.15.012/12/07<0.1<0.1<0.1<0.10.15.006/17/08<0.1<0.1<0.1<0.1<0.1<0.10.15.011/05/08<0.1<0.1<0.1<0.1<0.1<0.10.15.005/19/09<0.34<0.34<0.34<0.34<0.34<0.340.345.011/18/09<0.34<0.34<0.34<0.34<0.34<0.340.345.006/21/10<0.11<0.11<0.11<0.11<0.11<0.110.115.011/18/10<0.34<0.34<0.34<0.34<0.34<0.340.345.0injection event (03-29-11)05/23/11<0.12<0.12<0.12<0.12<0.12<0.120.125.008/23/110.125.0injection event (09-28-11)11/15/11<0.12<0.12<0.12<0.12<0.120.125.002/21/120.215.0injection event (04-14-12)06/05/12<0.21<0.21<0.21<0.21<0.210.215.010/09/120.215.0injection event (09-13-12)11/12/12<0.21<0.21<0.21<0.21<0.210.215.002/18/130.215.005/13/13<0.21<0.21<0.21<0.21<0.210.215.008/21/130.215.011/11/13<0.21<0.21<0.21<0.21<0.210.215.002/10/140.215.005/12/14<0.21<0.21<0.21<0.21<0.210.215.008/18/140.215.011/11/14<0.21<0.21<0.21<0.21<0.210.215.002/23/150.215.005/12/15<0.21<0.21<0.21<0.21<0.210.215.008/24/150.215.011/10/15<0.21<0.21<0.21<0.21<0.210.215.002/22/160.215.005/19/16<0.21<0.21<0.21<0.21<0.210.215.008/23/1611/16/16<0.21<0.21<0.21<0.21<0.210.215.002/22/170.215.005/30/17<0.21<0.21<0.21<0.21<0.210.215.008/22/170.215.011/14/17<0.21<0.21<0.21<0.21<0.210.215.002/18/180.215.005/14/18<0.21<0.21<0.21<0.21<0.210.215.008/24/1811/12/18<0.21<0.21<0.21<0.21<0.210.211.002/14/190.211.005/20/19<0.21<0.21<0.21<0.21<0.210.211.008/27/190.211.011/19/19<0.21<0.21<0.21<0.21<0.210.211.002/24/200.211.005/19/20<0.21<0.21<0.21<0.21<0.210.211.008/18/2011/16/20<0.21<0.21<0.21<0.21<0.210.211.002/16/210.211.005/19/21<0.21<0.21<0.21<0.21<0.210.211.011/23/21<0.21<0.21<0.21<0.21<0.210.211.005/23/22<0.21<0.21<0.21<0.21<0.210.211.011/07/22<0.21<0.21<0.21<0.21<0.210.211.005/03/23<0.21<0.21<0.21<0.21<0.210.211.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE trans-1,2-dichloroethene04/17/90MCL = 10007/11/91FBAC = MDL (LOD)05/28/92NCGQS = 100 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/071.1 J<0.1<0.10.8 J<0.1<0.1<0.1<0.10.15.012/12/071.1 J<0.1<0.10.5 J<0.1<0.1<0.10.4 J0.15.006/17/081 J<0.1<0.10.5 J<0.1<0.1<0.10.4 J<0.10.15.0ic, cc11/05/080.8 J<0.1<0.10.4 J0.4 J0.2 J<0.20.6 J0.3 J0.15.005/19/090.99 J<0.34<0.34<0.34<0.34<0.34<0.34<0.34<0.340.345.011/18/090.88 J<0.34<0.340.43 J0.42 J<0.34<0.340.71 J0.44 J0.345.006/21/100.83 J<0.11<0.110.42 J<0.11<0.11<0.11<0.11<0.110.115.011/18/101.2 J<0.34<0.340.49 J<0.34<0.34<0.340.66 J<0.340.345.0injection event (03-29-11)05/23/111 J<0.12<0.120.42 J<0.12<0.12<0.120.53 J<0.120.125.008/23/11<0.12<0.120.41 J<0.120.125.0injection event (09-28-11)11/15/110.93 J<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.125.002/21/12<0.21<0.21<0.21<0.210.215.0injection event (04-14-12)06/05/120.57 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.010/09/12<0.21<0.21<0.21<0.210.215.0injection event (09-13-12)11/12/120.78 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.002/18/13<0.21<0.21<0.21<0.210.215.005/13/130.86 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.008/21/13<0.21<0.21<0.21<0.210.215.011/11/130.72 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.002/10/14<0.21<0.21<0.21<0.210.215.005/12/140.76 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.008/18/14<0.21<0.210.45 J<0.210.215.011/11/140.65 J<0.21<0.21<0.21<0.21<0.21<0.210.43 J<0.210.215.002/23/15<0.21<0.210.58 J<0.210.215.005/12/150.73 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.008/24/15<0.21<0.210.50 J<0.210.215.011/10/150.74 J<0.21<0.210.40 J<0.21<0.21<0.210.60 J<0.210.215.002/22/16<0.21<0.21<0.21<0.210.215.005/19/160.72 J<0.21<0.21<0.21<0.21<0.21<0.210.43 J<0.210.215.008/23/1611/16/160.57 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.220.215.002/22/17<0.21<0.210.41 J<0.210.215.005/30/170.54 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.220.215.008/22/17<0.21<0.21<0.21<0.210.215.011/14/170.71 J<0.21<0.21<0.21<0.21<0.21<0.210.60 J<0.210.215.002/18/18<0.21<0.21<0.21<0.210.215.005/14/18<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.215.008/24/18<0.21<0.21<0.21<0.210.211.011/12/180.49 J<0.21<0.21<0.21<0.21<0.21<0.210.48 J<0.210.211.002/14/19<0.21<0.21<0.21<0.210.211.005/20/190.53 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/27/19<0.21<0.21<0.21<0.210.211.011/19/19<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.002/24/20<0.21<0.21<0.21<0.210.211.005/19/20<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.008/18/20<0.21<0.21<0.21<0.210.211.011/16/20<0.21<0.21<0.21<0.21<0.21<0.21<0.210.44 J<0.210.211.002/16/21<0.21<0.21<0.21<0.210.211.005/19/210.61 J<0.21<0.21<0.210.55 J0.80 J<0.210.57 J<0.210.211.011/23/21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.005/23/220.55 J<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.011/07/22<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.005/03/23<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.21<0.210.211.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 chloromethane04/17/90(methyl chloride)07/11/91MCL =05/28/92FBAC = MDL (LOD)06/30/93NCGQS = 3 (2L Std)11/04/942L Std = 4.6 (pre- Jan. 2010)12/20/942L Std = 5 (Jan. 2010)02/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/10injection event (03-29-11)05/23/1108/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/1210/09/12injection event (09-13-12)11/12/1202/18/1305/13/1308/21/1311/11/1302/10/1405/12/1408/18/1411/11/1402/23/1505/12/1508/24/1511/10/1502/22/1605/19/1608/23/1611/16/16<0.13<0.13<0.13<0.13<0.130.131.002/22/170.131.005/30/17<0.13<0.13<0.13<0.13<0.130.131.008/22/170.131.011/14/17<0.13<0.13<0.13<0.13<0.130.131.002/18/180.131.005/14/18<0.13<0.13<0.13<0.13<0.130.131.008/24/1811/12/18<0.13<0.13<0.13<0.13<0.130.131.002/14/190.131.005/20/19<0.13<0.13<0.13<0.13<0.130.131.008/27/190.131.011/19/19<0.13<0.13<0.13<0.13<0.130.131.002/24/200.131.005/19/20<0.13<0.13<0.13<0.13<0.130.131.008/18/2011/16/20<0.13<0.13<0.13<0.13<0.130.131.002/16/210.131.005/19/21<0.13<0.13<0.13<0.13<0.130.131.011/23/21<0.13<0.13<0.13<0.13<0.130.131.005/23/22<0.13<0.13<0.13<0.13<0.130.131.011/07/22<0.13<0.13<0.13<0.13<0.130.131.005/03/23<0.13<0.13<0.13<0.13<0.130.131.011/20/23<1.0<1.0<1.0<1.0<1.01.0MW-7Sample Date MW-1MW-4MW-5MW-6MW-6RMW-14BMDLMRLQA/QCMW-7RMW-13MW-14ACLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituent chloromethane04/17/90(methyl chloride)07/11/91MCL =05/28/92FBAC = MDL (LOD)06/30/93NCGQS = 3 (2L Std)11/04/942L Std = 4.6 (pre- Jan. 2010)12/20/942L Std = 5 (Jan. 2010)02/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/10injection event (03-29-11)05/23/1108/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/1210/09/12injection event (09-13-12)11/12/1202/18/1305/13/1308/21/1311/11/1302/10/1405/12/1408/18/1411/11/1402/23/1505/12/1508/24/1511/10/1502/22/1605/19/1608/23/1611/16/16<0.13<0.13<0.13<0.13<0.130.55 J<0.13<0.13<0.130.131.002/22/17<0.13<0.13<0.13<0.130.131.005/30/17<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.008/22/17<0.13<0.13<0.13<0.130.131.011/14/17<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.002/18/18<0.13<0.13<0.13<0.130.131.005/14/18<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.008/24/18<0.13<0.13<0.13<0.130.131.011/12/18<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.002/14/19<0.13<0.13<0.13<0.130.131.005/20/19<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.008/27/19<0.13<0.13<0.13<0.130.131.011/19/19<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.002/24/20<0.13<0.13<0.13<0.130.131.005/19/20<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.008/18/20<0.13<0.13<0.13<0.130.131.011/16/20<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.002/16/21<0.13<0.13<0.13<0.130.131.005/19/21<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.011/23/21<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.005/23/22<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.011/07/22<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.005/03/23<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.13<0.130.131.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0ConstituentSample Date MW-15MW-16MW-17MW-20MW-21dMW-21sMW-22MW-23MW-24MDLMRLQA/QCCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSMW-301MW-21d2 dichloromethane04/17/90<10.0<10.0<10.0<10.0<10.0(methylene chloride)07/11/91<10.0<10.0<10.0<10.0<10.0MCL = 505/28/92<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0FBAC = MDL (LOD)06/30/93<10.0<10.0<10.0<10.0<10.0<10.0<10.0NCGQS = 5 (2L Std)11/04/94<10.0<10.0<10.0<10.0<10.0<10.02L Std = 4.6 (pre- Jan. 2010)12/20/94<10.0<10.0<10.0<10.0<10.0<10.0i2L Std = 5 (Jan. 2010)02/02/95<10.0<10.0<10.0<10.0<10.0<10.003/13/95<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/15/95<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.007/25/96<10.0<10.0<10.0<10.0<10.0<10.0f02/25/97<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0i,f09/03/97<10.0<10.0<10.0<10.0<10.0i,f05/04/98<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0i,f11/02/98<10.0<10.0<10.0<10.0<10.0i,f,t04/26/99<10.0<10.0<10.0<10.0<10.0i,f,t11/22/99<10.0<10.0<10.0<10.0<10.0i05/23/00<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/29/00<10.0<10.0<10.0<10.0<10.006/05/01<10.0<10.0<10.0<10.0<10.0<10.0<10.0f,t11/13/01<10.0<10.0<10.0i,f06/04/02<10.0<10.0<10.003/12/03<10.0<10.0<10.0<10.006/18/03<10.0<10.0<10.0<10.012/08/03<10.0<10.0<10.006/22/04<10.0<10.0<10.011/30/04<10.0<10.0<10.006/01/05<10.011/02/05<10.005/22/06<10.0<10.0<10.0i,t 11/27/06<10.0<10.0<10.006/12/07<0.6<0.6<0.6<0.60.61.0f12/12/07<0.6<0.6<0.6<0.60.61.006/17/08<0.6<0.6<0.6<0.6<0.6<0.60.61.0ic, cc11/05/08<0.6<0.6<0.6<0.6<0.6<0.60.61.0t05/19/09<0.53<0.53<0.53<0.53<0.53<0.530.531.011/18/09<0.53<0.53<0.53<0.53<0.53<0.530.531.006/21/10<0.07<0.07<0.07<0.07<0.07<0.070.071.011/18/10<0.53<0.53<0.53<0.53<0.53<0.530.531.0injection event (03-29-11)05/23/11<0.14<0.14<0.14<0.14<0.14<0.140.141.008/23/11injection event (09-28-11)11/15/11<0.14<0.14<0.14<0.14<0.140.141.002/21/12injection event (04-14-12)06/05/12<0.23<0.23<0.23<0.23<0.230.231.010/09/12injection event (09-13-12)11/12/12<0.23<0.23<0.23<0.23<0.230.231.002/18/1305/13/13 <0.23 <0.23 <0.23 <0.23<0.230.231.008/21/130.231.011/11/13<0.23<0.23<0.23<0.23<0.230.231.002/10/140.231.005/12/14<0.23<0.23<0.23<0.23<0.230.231.008/18/140.231.011/11/14<0.23<0.23<0.23<0.23<0.230.231.002/23/150.231.005/12/15<0.23<0.23<0.23<0.23<0.230.231.008/24/150.231.011/10/15<0.23<0.23<0.23<0.23<0.230.231.002/22/160.231.005/19/16<0.23<0.23<0.23<0.23<0.230.231.008/23/1611/16/16<0.23<0.23<0.23<0.23<0.230.231.002/22/170.231.005/30/17<0.23<0.23<0.23<0.23<0.230.231.008/22/170.231.011/14/17<0.23<0.23<0.23<0.23<0.230.231.002/18/180.231.005/14/18<0.23<0.23<0.23<0.23<0.230.231.008/24/1811/12/18<0.23<0.23<0.23<0.23<0.230.231.002/14/190.231.005/20/19<0.23<0.23<0.23<0.23<0.230.231.008/27/190.231.011/19/19<0.23<0.23<0.23<0.23<0.230.231.002/24/200.231.005/19/20<0.23<0.23<0.23<0.23<0.230.231.008/18/2011/16/20<0.23<0.23<0.23<0.23<0.230.231.002/16/210.231.005/19/21<0.23<0.23<0.23<0.23<0.230.231.011/23/21<0.23<0.23<0.23<0.23<0.230.231.005/23/22<0.23<0.23<0.23<0.23<0.230.231.011/07/22<0.23<0.23<0.23<0.23<0.230.231.005/03/23<0.23<0.23<0.23<0.23<0.230.231.011/20/23<5.0<5.0<5.0<5.0<5.05.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE dichloromethane04/17/90<10.0<10.0(methylene chloride)07/11/91<10.0<10.0MCL = 505/28/92<10.0<10.0<10.0FBAC = MDL (LOD)06/30/93<10.0<10.0<10.0NCGQS = 5 (2L Std)11/04/94<10.0<10.0<10.0<10.02L Std = 4.6 (pre- Jan. 2010)12/20/94<10.0<10.0<10.082 Bi2L Std = 5 (Jan. 2010)02/02/95<10.0<10.0<10.0<10.003/13/95<10.0<10.0<10.0<10.011/15/95<10.0<10.0<10.0<10.007/25/96<10.0<10.0<10.0<10.0f02/25/97<10.0<10.0<10.0<10.0i,f09/03/97<10.0<10.0<10.0<10.0i,f05/04/98<10.0<10.0<10.0<10.0i,f11/02/98<10.0<10.0<10.0<10.0i,f,t04/26/99<10.0<10.0<10.0<10.0i,f,t11/22/99<10.0<10.0<10.0<10.0i05/23/00<10.0<10.0<10.0<10.0<10.0<10.0<10.011/29/00<10.0<10.0<10.0<10.0<10.0<10.0<10.006/05/01<10.0<10.0<10.0<10.0<10.0<10.0<10.0f,t11/13/01<10.0<10.0<10.0<10.0<10.0<10.0<10.0i,f06/04/02<10.0<10.0<10.0<10.0<10.0<10.0<10.003/12/03<10.0<10.0<10.0<10.0<10.0<10.0<10.006/18/03<10.0<10.0<10.0<10.0<10.0<10.0<10.012/08/03<10.0<10.0<10.0<10.0<10.0<10.0<10.006/22/04<10.0<10.0<10.0<10.0<10.0<10.0<10.011/30/04<10.0<10.0<10.0<10.0<10.0<10.0<10.006/01/05<10.0<10.0<10.0<10.0<10.0<10.0<10.011/02/05<10.0<10.0<10.0<10.0<10.0<10.0<10.005/22/06<10.0<10.0<10.0<10.0<10.0<10.0<10.0i,t11/27/06<10.0<10.0<10.0<10.0<10.0<10.0<10.006/12/07<0.6<0.6<0.6<0.6<0.6<0.6<0.6<0.60.61.0f12/12/07<0.6<0.6<0.6<0.6<0.6<0.6<0.6<0.60.61.006/17/08<0.6<0.6<0.6<0.6<0.6<0.6<0.6<0.6<0.60.61.0ic, cc11/05/08<0.6<0.6<0.6<0.6<0.6<0.6<0.6<0.6<0.60.61.0t05/19/09<0.53<0.53<0.53<0.53<0.53<0.53<0.53<0.53<0.530.531.011/18/09<0.53<0.53<0.53<0.53<0.53<0.53<0.53<0.53<0.530.531.006/21/10<0.07<0.07<0.07<0.07<0.07<0.07<0.07<0.07<0.070.071.011/18/10<0.53<0.53<0.53<0.53<0.53<0.53<0.53<0.53<0.530.531.0injection event (03-29-11)05/23/11<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/23/110.45 J0.44 J<0.140.141.0injection event (09-28-11)11/15/11<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/21/12<0.23<0.23<0.23<0.230.231.0injection event (04-14-12)06/05/12<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.010/09/12<0.23<0.23<0.23<0.230.231.0injection event (09-13-12)11/12/12<0.23<0.23<0.23<0.23<0.230.64 J<0.230.6 J<0.230.231.002/18/13<0.23<0.23<0.23<0.230.231.005/13/13<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/21/13<0.23<0.23<0.23<0.230.231.011/11/13<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/10/14<0.23<0.23<0.23<0.230.231.005/12/14<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/18/14<0.23<0.23<0.23<0.230.231.011/11/14<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/23/15<0.23<0.23<0.23<0.230.231.005/12/15<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/24/15<0.23<0.23<0.23<0.230.231.011/10/15<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/22/16<0.23<0.23<0.23<0.230.231.005/19/16<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/23/1611/16/16<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/22/17<0.23<0.23<0.23<0.230.231.005/30/17<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/22/17<0.23<0.23<0.23<0.230.231.005/30/17<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/18/18<0.23<0.23<0.23<0.230.231.005/14/18<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/24/1811/12/18<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/14/19<0.23<0.23<0.23<0.230.231.005/20/19<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/27/190.41 J<0.23<0.23<0.230.231.011/19/19<0.23<0.23<0.23<0.23<0.23<0.23<0.230.51 J<0.230.231.002/24/20<0.230.56 J<0.23<0.230.231.005/19/20<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.008/18/20<0.23<0.23<0.23<0.230.231.011/16/20<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.002/16/21<0.23<0.23<0.23<0.230.231.005/19/21<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.011/23/21<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.005/23/22<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.011/07/22<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.005/03/23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.23<0.230.231.011/20/23<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.05.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 1,2-dichloropropane04/17/90MCL = 507/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.6 (2L Std)06/30/932L Std = 0.51 (pre- Jan. 2010)11/04/942L Std = 0.6 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/07<0.1<0.1<0.1<0.10.11.012/12/07<0.1<0.1<0.1<0.10.11.006/17/08<0.1<0.1<0.11 J0.4 J0.6 J0.11.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.10.11.005/19/09<0.2<0.2<0.2<0.20.6 J0.75 J0.21.011/18/09<0.2<0.2<0.2<0.20.46 J0.7 J0.21.006/21/10<0.098<0.098<0.098<0.0980.42 J0.63 J0.0981.011/18/10<0.2<0.2<0.2<0.20.45 J0.73 J0.21.0injection event (03-29-11)05/23/11<0.59<0.59<0.59<0.59<0.59<0.590.591.008/23/110.591.0injection event (09-28-11)11/15/11<0.59<0.59<0.59<0.59<0.590.591.002/21/120.11.0injection event (04-14-12)06/05/12<0.1<0.1<0.1<0.10.51 J0.11.010/09/120.11.0injection event (09-13-12)11/12/12<0.1<0.1<0.1<0.10.61 J0.11.002/18/130.11.005/13/13<0.1<0.1<0.1<0.10.89 J0.11.008/21/130.11.011/11/13<0.10<0.10<0.10<0.100.43 J0.101.002/10/140.101.005/12/14<0.10<0.10<0.10<0.100.47 J0.101.008/18/140.101.011/11/14<0.10<0.10<0.10<0.100.67 J0.101.002/23/150.101.005/12/15<0.10<0.10<0.10<0.100.57 J0.101.008/24/150.101.011/10/15<0.10<0.10<0.10<0.100.58 J0.101.002/22/160.101.005/19/16<0.10<0.10<0.10<0.100.57 J0.101.008/23/1611/16/16<0.10<0.10<0.10<0.100.49 J0.101.002/22/170.101.005/30/17<0.10<0.10<0.10<0.100.48 J0.101.008/22/170.101.011/14/17<0.10<0.10<0.10<0.100.66 J0.101.002/18/180.101.005/14/18<0.10<0.10<0.10<0.10<0.100.101.008/24/1811/12/18<0.10<0.10<0.100.56 J<0.100.101.002/14/190.101.005/20/19<0.10<0.10<0.100.59 J<0.100.101.008/27/190.101.011/19/19<0.10<0.10<0.100.44 J<0.100.101.002/24/200.101.005/19/20<0.10<0.10<0.100.70 J<0.100.101.008/18/2011/16/20 <0.10 <0.10 <0.10 <0.10<0.100.101.002/16/210.101.005/19/21<0.10<0.10<0.100.72 J<0.100.101.011/23/21<0.10<0.10<0.10<0.10<0.100.101.005/23/22<0.10<0.10<0.100.54 J<0.100.101.011/07/22<0.10<0.10<0.10<0.10<0.100.101.005/03/23<0.10<0.10<0.10<0.100.32 J0.101.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 1,2-dichloropropane04/17/90MCL = 507/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.6 (2L Std)06/30/932L Std = 0.51 (pre- Jan. 2010)11/04/942L Std = 0.6 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/070.6 J<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.012/12/07<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.006/17/080.7 J<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.005/19/090.65 J<0.2<0.2<0.2<0.2<0.2<0.20.43 J<0.20.21.011/18/090.66 J<0.2<0.2<0.2<0.2<0.20.48 J0.49 J<0.20.21.006/21/100.63 J<0.098<0.098<0.098<0.098<0.098<0.098<0.098<0.0980.0981.011/18/101.1<0.2<0.2<0.2<0.2<0.20.53 J0.67 J<0.20.21.0injection event (03-29-11)05/23/11<0.59<0.59<0.59<0.59<0.59<0.59<0.59<0.59<0.590.591.008/23/11<0.59<0.59<0.59<0.590.591.0injection event (09-28-11)11/15/110.77 J<0.59<0.59<0.59<0.59<0.59<0.59<0.59<0.590.591.002/21/12<0.1<0.10.49 J<0.10.11.0injection event (04-14-12)06/05/120.58 J<0.1<0.1<0.1<0.1<0.10.54 J<0.1<0.10.11.010/09/12<0.1<0.1<0.1<0.10.11.0injection event (09-13-12)11/12/120.76 J<0.1<0.1<0.1<0.1<0.10.42 J<0.1<0.10.11.002/18/13<0.1<0.10.47 J<0.10.11.005/13/130.55 J<0.1<0.1<0.1<0.1<0.10.64 J0.53 J<0.10.11.008/21/13<0.1<0.10.57 J<0.10.11.011/11/13<0.10<0.10<0.10<0.10<0.10<0.100.42 J<0.10<0.100.101.002/10/14<0.10<0.100.52 J<0.100.101.005/12/140.59 J<0.10<0.10<0.10<0.10<0.10<0.100.44 J<0.100.101.008/18/14<0.10<0.100.55 J<0.100.101.011/11/140.66 J<0.10<0.10<0.10<0.10<0.100.49 J<0.10<0.100.101.002/23/15<0.10<0.10<0.10<0.100.101.005/12/150.54 J<0.10<0.10<0.10<0.10<0.100.45 J0.45 J<0.100.101.008/24/15<0.10<0.100.44 J<0.100.101.011/10/150.57 J<0.10<0.10<0.10<0.10<0.10<0.100.51 J<0.100.101.002/22/16<0.10<0.10<0.10<0.100.101.005/19/160.56 J<0.10<0.10<0.10<0.10<0.100.46 J<0.10<0.100.101.008/23/1611/16/160.42 J<0.10<0.10<0.10<0.10<0.100.41 J0.41 J<0.100.101.002/22/17<0.10<0.100.49 J<0.100.101.005/30/170.47 J<0.10<0.10<0.10<0.10<0.100.41 J<0.10<0.100.101.008/22/17<0.10<0.100.56 J<0.100.101.011/14/170.80 J<0.10<0.10<0.10<0.10<0.100.56 J0.44 J<0.100.101.002/18/18<0.10<0.10<0.10<0.100.101.005/14/18<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.008/24/18<0.10<0.100.52 J<0.100.101.011/12/180.46 J<0.10<0.10<0.10<0.10<0.100.40 J<0.10<0.100.101.002/14/19<0.10<0.10<0.10<0.100.101.005/20/19<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.008/27/19<0.10<0.10<0.10<0.100.101.011/19/19<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.002/24/20<0.10<0.10<0.10<0.100.101.005/19/20<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.008/18/20<0.10<0.10<0.10<0.100.101.011/16/20<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.002/16/21<0.10<0.10<0.10<0.100.101.005/19/21<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.011/23/21<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.005/23/22<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.011/07/22<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.10<0.100.101.005/03/230.40 J<0.10<0.10<0.10<0.100.16 J0.17 J0.50 J0.35 J<0.10<0.100.101.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 heptachlor epoxide04/17/90MCL = 0.207/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.004 (2L Std)06/30/932L Std = 0.0038 (pre- Jan. 2010)11/04/942L Std = 0.004 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/07<0.01<0.010.010.07512/12/0706/17/08 <0.01 <0.01 0.010.07511/05/0805/19/09<0.025<0.025<0.0250.0250.07511/18/0906/21/10<0.0089<0.0089<0.00890.00890.07511/18/10injection event (03-29-11)05/23/11<0.0089<0.0089<0.00890.00890.07508/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<0.037<0.037<0.0370.0370.07510/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<0.037<0.037<0.0370.0370.07508/21/1311/11/1302/10/1405/12/14<0.037<0.037<0.0370.0370.07508/18/1411/11/1402/23/1505/12/15<0.037<0.037<0.0370.0370.07508/24/1511/10/1502/22/1605/19/16<0.037<0.037<0.0370.0370.07508/23/1611/16/1602/22/1705/30/17<0.037<0.037<0.0370.0370.07508/22/1711/14/1702/18/1805/14/18<0.037<0.037<0.0370.0370.07508/24/1811/12/1802/14/1905/20/19 <0.037 <0.037 <0.0370.0370.05008/27/1911/19/1902/24/2005/19/20<0.037<0.037<0.0370.0370.05008/18/2011/16/2002/16/2105/19/21<0.037<0.037<0.0370.0370.05011/23/2105/23/22<0.037<0.037<0.0370.0370.05011/07/2205/03/23<0.037<0.037<0.0370.0370.05011/20/23MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE heptachlor epoxide04/17/90MCL = 0.2 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 0.004 (2L Std)06/30/932L Std = 0.0038 (pre- Jan. 2010)11/04/942L Std = 0.004 (Jan. 2010)12/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/07<0.010.02 J0.010.07512/12/0706/17/08 <0.01 <0.0111/05/0805/19/09 <0.025 <0.025 <0.025 <0.025 0.025 0.07511/18/0906/21/10 <0.0089 <0.0089<0.0089<0.00890.00890.07511/18/10injection event (03-29-11)05/23/11<0.0089<0.0089<0.0089<0.00890.00890.07508/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<0.037<0.037<0.037<0.0370.0370.07510/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<0.037<0.037<0.037<0.037<0.037<0.0370.0370.07508/21/1311/11/1302/10/1405/12/14<0.037<0.037<0.037<0.037<0.037<0.0370.0370.07508/18/1411/11/1402/23/1505/12/15<0.037<0.037<0.037<0.037<0.037<0.0370.0370.07508/24/1511/10/1502/22/1605/19/16<0.037<0.037<0.037<0.037<0.037<0.0370.0370.07508/23/1611/16/1602/22/1705/30/17<0.037<0.037<0.037<0.037<0.037<0.0370.0370.07508/22/1711/14/1702/18/1805/14/18<0.037<0.037<0.037<0.037<0.037<0.0370.0370.07508/24/1811/12/1802/14/1905/20/19 <0.037 <0.037 <0.037 <0.037 <0.037 <0.037 0.0370.05008/27/1911/19/1902/24/2005/19/20<0.037<0.037<0.037<0.037<0.037<0.0370.0370.05008/18/2011/16/2002/16/2105/19/21<0.037<0.037<0.037<0.037<0.037<0.0370.0370.05011/23/2105/23/22<0.037<0.037<0.037<0.037<0.037<0.0370.0370.05011/07/2205/03/23<0.037<0.037<0.037<0.037<0.037<0.037<0.037<0.0370.0370.05011/20/23MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 isobutyl alcohol 04/17/90MCL = 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = NE06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/97 <100 <100 <100 <100 <100 <10009/03/9705/04/98 <100 <100 <100 <100 <100 <10011/02/98 <100 <100 <100 <100 <10004/26/99 <100 <100 <100 <10011/22/99 <100 <100 <100 <100 <10005/23/00 <100 <100 <100 <100 <100 <100<100<10011/29/00<100<100<100<100<10006/05/01<100<100<100<100<100<100<10011/13/0106/04/02<100<10003/12/03<100<10006/18/03<100<10012/08/03<100<10006/22/04<100<10011/30/04<100<10006/01/05<100<10011/02/05<100<10005/22/06<100<10011/27/0606/12/07<1.2<1.21.210012/12/0706/17/08<1.2<1.21.2100ic, cc11/05/0805/19/09<14<14<141410011/18/0906/21/10<14<14<141410011/18/10injection event (03-29-11)05/23/11<11<11<111110008/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<11<11<111110010/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<11<11<111110008/21/1311/11/1302/10/1405/12/14<11<11<111110008/18/1411/11/1402/23/1505/12/15<11<11<111110008/24/1511/10/1502/22/1605/19/16<11<11<111110008/23/1611/16/1602/22/1705/30/17<11<11<111110008/22/1711/14/1702/18/1805/14/18<11<11<111110008/24/1811/12/1802/14/1905/20/19 <11 <11 <11115008/27/1911/19/1902/24/2005/19/20<11<11<11115008/18/2011/16/2002/16/2105/19/21<11<11<11115011/23/2105/23/22<11<11<11115011/07/2205/03/23<11<11<11115011/20/23MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE isobutyl alcohol 04/17/90MCL = 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = NE06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/97 <100 <100 <100<10009/03/9705/04/98<100<100<100241 R11/02/98<100<100<100<10004/26/99<100<100<100<10011/22/99<100<100<100<10005/23/00<100<100<100<100<100<100<10011/29/00<100<100<100<100<100<100<10006/05/01<100<100<100<100<100<100<10011/13/0106/04/02<100<10003/12/03<100<10006/18/03<100<10012/08/03<100<10006/22/04<100<10011/30/04<100<10006/01/05<100<10011/02/05<100<10005/22/06<100<10011/27/0606/12/07<1.2<1.21.210012/12/0706/17/08<1.2<1.2ic, cc11/05/0805/19/09<14<14<14<141410011/18/0906/21/10<14<14<14<141410011/18/10injection event (03-29-11)05/23/11<11<11<11<111110008/23/11injection event (09-28-11)11/15/1102/21/12injection event (04-14-12)06/05/12<11<11<11<111110010/09/12injection event (09-13-12)11/12/1202/18/1305/13/13<11<11<11<11<11<111110008/21/1311/11/1302/10/1405/12/14<11<11<11<11<11<111110008/18/1411/11/1402/23/1505/12/15<11<11<11<11<11<111110008/24/1511/10/1502/22/1605/19/16<11<11<11<11<11<111110008/23/1611/16/1602/22/1705/30/17<11<11<11<11<11<111110008/22/1711/14/1702/18/1805/14/18<11<11<11<11<11<111110008/24/1811/12/1802/14/1905/20/19 <11 <11 <11 <11 <11 <11 11 5008/27/1911/19/1902/24/2005/19/20 <11 <11 <11 <11 <11 <11 11 5008/18/2011/16/2002/16/2105/19/21 <11 <11 <11 <11 <11 <11 11 5011/23/2105/23/22 <11 <11 <11 <11 <11 <11 11 5011/07/2205/03/23 <11 <11 <11 <11 <11 <11 <11 <11 115011/20/23MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 naphthalene 04/17/90MCL = 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 6 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/10<0.086<0.086<0.0860.0861011/18/10<0.39<0.39<0.390.3910injection event (03-29-11)05/23/11<0.46<0.46<0.460.461008/23/110.4610injection event (09-28-11)11/15/11<0.46<0.46<0.46<0.46<0.460.461002/21/120.1110injection event (04-14-12)06/05/12<0.11<0.11<0.11<0.11<0.110.111010/09/120.1110injection event (09-13-12)11/12/12<0.11<0.11<0.11<0.11<0.110.111002/18/130.111005/13/13<0.11<0.11<0.11<0.11<0.110.111008/21/1311/11/13<0.11<0.11<0.11<0.11<0.110.111002/10/1405/12/14<0.11<0.11<0.11<0.11<0.110.111008/18/1411/11/14<0.11<0.11<0.11<0.11<0.110.111002/23/1505/12/15<0.11<0.11<0.11<0.11<0.110.111008/24/1511/10/15<0.11<0.11<0.11<0.11<0.110.111002/22/1605/19/16<0.11<0.11<0.11<0.11<0.110.111008/23/1611/16/16<0.11<0.11<0.11<0.11<0.110.111002/22/1705/30/17<0.11<0.11<0.11<0.11<0.110.111008/22/1711/14/17<0.11<0.11<0.11<0.110.48 J0.111002/18/1805/14/18<0.11<0.11<0.11<0.11<0.110.111008/24/1811/12/18<0.11<0.11<0.11<0.11<0.110.11102/14/1905/20/19<0.11<0.11<0.11<0.11<0.110.111.008/27/1911/19/19<0.11<0.11<0.11<0.11<0.110.111.002/24/2005/19/20<0.11<0.11<0.11<0.11<0.110.111.008/18/2011/16/20<0.11<0.11<0.11<0.11<0.110.111.002/16/210.111.005/19/21<0.11<0.11<0.11<0.11<0.110.111.011/23/21<0.11<0.11<0.11<0.11<0.110.111.005/23/22<0.11<0.11<0.11<0.11<0.110.111.011/07/22<0.11<0.11<0.11<0.11<0.110.111.005/03/23<0.11<0.11<0.11<0.11<0.110.111.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE naphthalene 04/17/90MCL = 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = 6 (2L Std)06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/08 ic, cc11/05/0805/19/0911/18/0906/21/10<0.0861.9 J<0.086<0.0860.0861011/18/10<0.390.9 J<0.39<0.390.3910injection event (03-29-11)05/23/11<0.461.1 J<0.46<0.460.461008/23/11<0.46<0.460.4610injection event (09-28-11)11/15/11<0.46<0.46<0.46<0.46<0.46<0.46<0.46<0.46<0.460.461002/21/12<0.11<0.11<0.46<0.460.1110injection event (04-14-12)06/05/12<0.11<0.11<0.111.4 J<0.11<0.11<0.11<0.11<0.110.111010/09/12<0.11<0.11<0.11<0.110.1110injection event (09-13-12)11/12/12<0.11<0.11<0.111.7 J<0.11<0.11<0.11<0.11<0.110.111002/18/13<0.11<0.11<0.11<0.110.111005/13/13<0.11<0.11<0.113.6 J<0.11<0.11<0.11<0.11<0.110.111008/21/1311/11/13<0.11<0.11<0.112.8 J<0.11<0.11<0.11<0.11<0.110.111002/10/1405/12/14<0.11<0.11<0.111.9 J<0.11<0.11<0.11<0.11<0.110.111008/18/1411/11/14<0.11<0.11<0.113.4 J<0.11<0.11<0.11<0.11<0.110.111002/23/1505/12/15<0.11<0.11<0.112.9 J<0.11<0.11<0.11<0.11<0.110.111008/24/1511/10/15<0.11<0.11<0.113.2 J<0.11<0.11<0.11<0.11<0.110.111002/22/1605/19/16<0.11<0.11<0.113.6 J<0.11<0.11<0.11<0.11<0.110.111008/23/1611/16/16<0.11<0.11<0.111.4 J<0.11<0.11<0.11<0.11<0.110.111002/22/1705/30/17<0.11<0.11<0.112.4 J<0.11<0.11<0.11<0.11<0.110.111008/22/1711/14/17<0.11<0.11<0.113.5 J<0.11<0.11<0.11<0.11<0.110.111002/18/1805/14/18<0.11<0.11<0.113.3 J<0.11<0.11<0.11<0.11<0.110.111008/24/1811/12/18<0.11<0.11<0.112.8 J<0.11<0.11<0.11<0.11<0.110.11102/14/1905/20/19<0.11<0.11<0.113.1<0.11<0.11<0.11<0.11<0.110.111.008/27/1911/19/19<0.11<0.11<0.112.5<0.11<0.11<0.11<0.11<0.110.111.002/24/2005/19/20<0.11<0.11<0.112.6<0.11<0.11<0.11<0.11<0.110.111.008/18/2011/16/20<0.11<0.11<0.112.1<0.11<0.11<0.11<0.11<0.110.111.002/16/2105/19/21<0.11<0.11<0.112.6<0.11<0.11<0.11<0.11<0.110.111.011/23/21<0.11<0.11<0.113.5<0.11<0.11<0.11<0.11<0.110.111.005/23/22<0.11<0.11<0.113.4<0.11<0.11<0.11<0.11<0.110.111.011/07/22<0.11<0.11<0.112.3<0.11<0.11<0.11<0.11<0.110.111.005/03/23<0.11<0.11<0.112.1<0.11<0.11<0.11<0.11<0.11<0.11<0.110.111.011/20/23<1.0<1.0<1.01.5<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 4-nitrophenol04/17/90MCL = 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = NE06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/1005/23/1108/23/1111/15/1102/21/1206/05/1210/09/1211/12/1202/18/1305/13/1308/21/1311/11/1302/10/1405/12/1408/18/1411/11/1402/23/1505/12/1508/24/1511/10/1502/22/1605/19/1608/23/1611/16/1602/22/1705/30/17<2.0<2.0<2.02.05008/22/1711/14/1702/18/1805/14/18 <2.8 <2.8<2.82.85008/24/1811/12/1802/14/1905/20/19 <2.8 <2.8<2.82.81008/27/1911/19/1902/24/2005/19/20<2.8<2.8<2.82.81008/18/2011/16/2002/16/2105/19/21<2.8<2.8<2.82.81011/23/2105/23/22<2.8<2.8<2.82.81011/07/2205/03/23<2.8<2.8<2.82.81011/20/23FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6MW-6RMW-7MW-7RMW-13MW-14A MW-14BMDLMRLQA/QCCLIENT: THE COUNTY OF ORANGE 4-nitrophenol04/17/90MCL = 07/11/91FBAC = MDL (LOD)05/28/92NCGQS = NE06/30/9311/04/9412/20/9402/02/9503/13/9511/15/9507/25/9602/25/9709/03/9705/04/9811/02/9804/26/9911/22/9905/23/0011/29/0006/05/0111/13/0106/04/0203/12/0306/18/0312/08/0306/22/0411/30/0406/01/0511/02/0505/22/0611/27/0606/12/0712/12/0706/17/0811/05/0805/19/0911/18/0906/21/1011/18/1005/23/1108/23/1111/15/1102/21/1206/05/1210/09/1211/12/1202/18/1305/13/1308/21/1311/11/1302/10/1405/12/1408/18/1411/11/1402/23/1505/12/1508/24/1511/10/1502/22/1605/19/1608/23/1611/16/1602/22/1705/30/17<2.04.4 J<2.0<2.0<2.0<2.02.05008/22/1711/14/1702/18/1805/14/18 <2.8 <2.8<2.8<2.8<2.8<2.82.85008/24/1811/12/1802/14/1905/20/19 <2.8 <2.8<2.8<2.8<2.8<2.82.81008/27/1911/19/1902/24/2005/19/20<2.8<2.8<2.8<2.8<2.8<2.82.81008/18/2011/16/2002/16/2105/19/21<2.8<2.8<2.8<2.8<2.8<2.82.81011/23/2105/23/22<2.8<2.8<2.8<2.8<2.8<2.82.81011/07/2205/03/23<2.8<2.8<2.8<2.8<2.8<2.8<2.8<2.82.81011/20/23MW-21dMW-21sMW-22MW-23MW-24MDLMRLQA/QCCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-15MW-16MW-17MW-20MW-301MW-21d2 tetrachloroethene04/17/90<5.0<5.0<5.0<5.0<5.0MCL = 507/11/91<5.0<5.0<5.0<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0NCGQS = 0.7 (2L Std)06/30/93<5.0<5.0<5.0<5.0<5.0<5.0<5.011/04/94<5.0<5.0<5.0<5.0<5.0<5.012/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0t11/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.006/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.006/22/04<5.0<5.0<5.011/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.2<0.2<0.2<0.20.2112/12/07<0.2<0.2<0.2<0.20.2106/17/08<0.2<0.2<0.2<0.2<0.2<0.20.21ic, cc11/05/08<0.2<0.2<0.2<0.2<0.2<0.20.2105/19/09<0.36<0.36<0.36<0.36<0.36<0.360.36111/18/09<0.36<0.36<0.36<0.36<0.36<0.360.36106/21/10<0.099<0.099<0.099<0.099<0.099<0.0990.099111/18/10<0.36<0.36<0.36<0.36<0.36<0.360.361injection event (03-29-11)05/23/11<0.73<0.73<0.73<0.73<0.73<0.730.73108/23/110.731injection event (09-28-11)11/15/11<0.73<0.73<0.73<0.73<0.730.73102/21/120.171injection event (04-14-12)06/05/12<0.17<0.17<0.17<0.17<0.170.17110/09/120.171injection event (09-13-12)11/12/12<0.17<0.17<0.17<0.17<0.170.17102/18/130.17105/13/13<0.17<0.17<0.17<0.17<0.170.17108/21/130.17111/11/13<0.17<0.17<0.17<0.17<0.170.17102/10/140.17105/12/14<0.17<0.17<0.17<0.17<0.170.17108/18/140.17111/11/14<0.17<0.17<0.17<0.17<0.170.17102/23/150.17105/12/15<0.17<0.17<0.17<0.17<0.170.17108/24/150.17111/10/15<0.17<0.17<0.17<0.17<0.170.17102/22/160.17105/19/16<0.17<0.17<0.17<0.17<0.170.17108/23/1611/16/16<0.17<0.17<0.17<0.17<0.170.17102/22/170.17105/30/17<0.17<0.17<0.17<0.17<0.170.17108/22/170.17111/14/17<0.17<0.17<0.17<0.17<0.170.17102/18/1805/14/18<0.17<0.17<0.17<0.17<0.170.17108/24/1811/12/18<0.17<0.17<0.17<0.17<0.170.17102/14/190.17105/20/19<0.17<0.17<0.17<0.17<0.170.171.008/27/190.171.011/19/19<0.17<0.17<0.17<0.17<0.170.171.002/24/200.171.005/19/20<0.17<0.17<0.17<0.17<0.170.171.008/18/2011/16/20<0.17<0.17<0.17<0.17<0.170.171.002/16/210.171.005/19/21<0.17<0.17<0.17<0.17<0.170.171.011/23/21<0.17<0.17<0.17<0.17<0.170.171.005/23/22<0.17<0.17<0.17<0.17<0.170.171.011/07/22<0.17<0.17<0.17<0.17<0.170.171.005/03/23<0.17<0.17<0.17<0.17<0.170.171.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE tetrachloroethene04/17/90<5.0<5.0MCL = 507/11/91<5.0<5.0FBAC = MDL (LOD)05/28/9233<5.0<5.0NCGQS = 0.7 (2L Std)06/30/9322.9<5.0<5.011/04/9415<5.0<5.0<5.012/20/94<5.0<5.0<5.0<5.002/02/9513<5.0<5.0<5.003/13/9512<5.0<5.0<5.011/15/9513<5.0<5.0<5.007/25/9630<5.0<5.0<5.002/25/9723<5.0<5.0<5.009/03/9723<5.0<5.0<5.005/04/989<5.0<5.0<5.011/02/9810<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0t11/29/00<5.0<5.0<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0<5.0<5.0<5.0<5.006/04/02<5.0<5.0<5.0<5.0<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/22/04<5.0<5.0<5.0<5.0<5.0<5.0<5.011/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.0<5.0<5.0<5.0<5.005/22/06<5.0<5.0<5.0<5.0<5.0<5.0<5.011/27/06<5.0<5.0<5.0<5.0<5.0<5.0<5.006/12/07<0.2<0.2<0.2<0.20.7 J0.6 J<0.23.20.21.012/12/07<0.2<0.2<0.2<0.20.5 J0.2 J<0.21.30.21.006/17/08<0.2<0.2<0.2<0.20.7 J0.5 J<0.22.8 J<0.20.21.0ic, cc11/05/08<0.2<0.2<0.2<0.20.2 J<0.2<0.21.10.3 J0.21.005/19/09<0.36<0.36<0.36<0.360.7 J<0.36<0.363.71.30.361.011/18/09<0.36<0.36<0.36<0.360.68 J0.54 J<0.363.80.83 J0.361.006/21/10<0.099<0.099<0.099<0.0990.54 J0.42 J<0.0992.50.53 J0.0991.011/18/10<0.36<0.36<0.36<0.360.77 J0.44 J<0.363.2<0.360.361.0injection event (03-29-11)05/23/11<0.73<0.73<0.73<0.730.77 J<0.73<0.734.4<0.730.731.008/23/11<0.73<0.732.9<0.730.731.0injection event (09-28-11)11/15/11<0.73<0.73<0.73<0.73<0.73<0.73<0.732.3<0.730.731.002/21/120.61 J0.65 J2.7<0.170.171.0injection event (04-14-12)06/05/12<0.17<0.17<0.17<0.17<0.17<0.17<0.170.73 J<0.170.171.010/09/12<0.17<0.172.40.42 J0.171.0injection event (09-13-12)11/12/12<0.17<0.17<0.17<0.170.44 J<0.17<0.171.5<0.170.171.002/18/130.59 J<0.172.2<0.170.171.005/13/13<0.17<0.17<0.17<0.170.44 J<0.17<0.171.6<0.170.171.008/21/13<0.170.44 J1.70.76 J0.171.011/11/13<0.17<0.17<0.17<0.170.41 J<0.17<0.171.40.40 J0.171.002/10/140.47 J<0.171.6<0.170.171.005/12/14<0.17<0.17<0.17<0.17<0.17<0.17<0.171.5<0.170.171.008/18/14<0.17<0.170.66 J<0.170.171.011/11/14<0.17<0.17<0.17<0.17<0.17<0.17<0.171.1<0.170.171.002/23/15<0.17<0.171.1<0.170.171.005/12/15<0.17<0.17<0.17<0.17<0.17<0.17<0.170.77 J<0.170.171.008/24/15<0.170.43 J1.0<0.170.171.011/10/15<0.17<0.17<0.17<0.17<0.17<0.17<0.170.99 J<0.170.171.002/22/16<0.17<0.170.58 J<0.170.171.005/19/16<0.17<0.17<0.17<0.17<0.17<0.17<0.170.95 J<0.170.171.008/23/1611/16/16<0.17<0.17<0.17<0.17<0.17<0.17<0.170.86 J<0.180.171.002/22/17<0.17<0.171.1<0.170.171.005/30/17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.89 J<0.180.171.008/22/17<0.17<0.170.89 J<0.170.171.011/14/17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.79 J<0.170.171.002/18/18<0.17<0.171.0<0.170.171.005/14/18<0.17<0.17<0.17<0.17<0.17<0.17<0.170.99J<0.170.171.008/24/18<0.17<0.170.92 J<0.170.171.011/12/18<0.17<0.17<0.17<0.17<0.17<0.17<0.170.80 J<0.170.171.002/14/19<0.17<0.170.69 J<0.170.171.005/20/19<0.17<0.17<0.17<0.17<0.17<0.17<0.170.49 J<0.170.171.008/27/19<0.17<0.17<0.17<0.170.171.011/19/19<0.17<0.17<0.17<0.17<0.17<0.17<0.170.58 J<0.170.171.002/24/20<0.17<0.170.46 J<0.170.171.005/19/20<0.17<0.17<0.17<0.17<0.17<0.17<0.170.94 J<0.170.171.008/18/20<0.17<0.170.54 J<0.170.171.011/16/20<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.002/16/21<0.17<0.17<0.17<0.170.171.005/19/21<0.17<0.17<0.17<0.17<0.170.46 J<0.170.59 J<0.170.171.011/23/21<0.17<0.17<0.17<0.17<0.17<0.17<0.170.51 J<0.170.171.005/23/22<0.17<0.17<0.17<0.17<0.17<0.17<0.170.55 J<0.170.171.011/07/22<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.171.005/03/23<0.17<0.17<0.17<0.17<0.17<0.17<0.17<0.170.49 J0.17 J<0.170.171.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 toluene04/17/90MCL = 100007/11/91FBAC = MDL (LOD)05/28/92<0.5<0.5<0.5<0.5<0.5<0.5<0.5<0.5NCGQS = 600 (2L Std)06/30/93<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.02L Std = 1000 (pre- Jan. 2010)11/04/94<5.0<5.0<5.0<5.0<5.02L Std = 600 (Jan. 2010)12/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.09 R11/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.006/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.006/22/04<5.0<5.0<5.011/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.3<0.3<0.3<0.30.31.012/12/07<0.3<0.3<0.30.4 J0.31.006/17/08<0.30.4 J<0.3<0.3<0.3<0.30.31.0ic, cc11/05/08<0.30.4 J<0.3<0.3<0.31 J0.31.005/19/09<0.27<0.27<0.27<0.27<0.27<0.270.271.011/18/09<0.27<0.27<0.27<0.27<0.270.47 J0.271.006/21/10<0.053<0.053<0.053<0.053<0.053<0.0530.0531.011/18/10<0.27<0.27<0.27<0.27<0.27<0.270.271.0injection event (03-29-11)05/23/11<0.85<0.85<0.85<0.85<0.85<0.850.851.008/23/110.851.0injection event (09-28-11)11/15/11<0.85<0.85<0.85<0.85<0.850.851.002/21/120.141.0injection event (04-14-12)06/05/12<0.14<0.14<0.14<0.140.49 J0.141.010/09/120.141.0injection event (09-13-12)11/12/12<0.14<0.14<0.14<0.140.46 J0.141.002/18/130.141.005/13/13<0.14<0.14<0.14<0.14<0.140.141.008/21/130.141.011/11/13<0.14<0.14<0.14<0.14<0.140.141.002/10/140.141.005/12/14<0.14<0.14<0.14<0.14<0.140.141.008/18/140.141.011/11/14<0.14<0.14<0.14<0.14<0.140.141.002/23/150.141.005/12/15<0.14<0.14<0.14<0.140.42 J0.141.008/24/150.141.011/10/15<0.14<0.14<0.14<0.14<0.140.141.002/22/160.141.005/19/16<0.14<0.14<0.14<0.14<0.140.141.008/23/1611/16/16<0.14<0.14<0.14<0.140.42 J0.141.002/22/170.141.005/30/17<0.14<0.14<0.14<0.14<0.140.141.008/22/170.141.011/14/17<0.14<0.14<0.14<0.140.47 J0.141.002/18/180.141.005/14/18<0.14<0.14<0.14<0.14<0.140.141.008/24/1811/12/18<0.14<0.14<0.14<0.14<0.140.141.002/14/190.141.005/20/19<0.14<0.14<0.14<0.14<0.140.141.008/27/190.141.011/19/19<0.14<0.14<0.14<0.14<0.140.141.002/24/200.141.005/19/20<0.14<0.14<0.14<0.14<0.140.141.008/18/2011/16/20<0.14<0.14<0.14<0.14<0.140.141.002/16/210.141.005/19/21<0.14<0.14<0.14<0.14<0.140.141.011/23/21<0.14<0.14<0.14<0.14<0.140.141.005/23/22<0.14<0.14<0.14<0.14<0.140.141.011/07/22<0.14<0.14<0.14<0.14<0.140.141.005/03/23<0.14<0.14<0.14<0.14<0.140.141.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE toluene04/17/90MCL = 100007/11/91FBAC = MDL (LOD)05/28/92<0.5<0.5<0.5NCGQS = 600 (2L Std)06/30/93<10.0<10.0<10.02L Std = 1000 (pre- Jan. 2010)11/04/94<5.0<5.0<5.0<5.02L Std = 600 (Jan. 2010)12/20/94<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.08 R6 R<511/29/00<5.0<5.0<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0<5.0<5.0<5.0<5.006/04/02<5.0<5.0<5.0<5.0<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/22/04<5.0<5.0<5.0<5.0<5.0<5.0<5.011/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.0<5.0<5.0<5.0<5.005/22/06<5.0<5.0<5.0<5.0<5.0<5.0<5.011/27/06<5.0<5.0<5.0<5.0<5.0<5.0<5.006/12/07<0.3<0.3<0.3<0.3<0.3<0.3<0.3<0.30.31.012/12/07<0.3<0.3<0.3<0.3<0.3<0.3<0.3<0.30.31.006/17/08<0.3<0.3<0.3<0.3<0.3<0.3<0.3<0.30.5 J0.31.0ic, cc11/05/08<0.3<0.3<0.3<0.3<0.3<0.30.4 J<0.3<0.30.31.005/19/09<0.27<0.27<0.270.55 J<0.27<0.27<0.27<0.27<0.270.271.011/18/09<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.271.006/21/10<0.053<0.053<0.053<0.053<0.053<0.053<0.053<0.053<0.0530.0531.011/18/10<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.271.0injection event (03-29-11)05/23/11<0.85<0.85<0.85<0.85<0.85<0.85<0.85<0.85<0.850.851.008/23/11<0.85<0.85<0.85<0.850.851.0injection event (09-28-11)11/15/11<0.85<0.85<0.85<0.85<0.85<0.85<0.85<0.85<0.850.851.002/21/12<0.14<0.14<0.14<0.140.141.0injection event (04-14-12)06/05/120.54 J<0.14<0.140.49 J<0.14<0.14<0.14<0.14<0.140.141.010/09/12<0.14<0.14<0.14<0.140.141.0injection event (09-13-12)11/12/12<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/18/13<0.14<0.14<0.14<0.140.141.005/13/13<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/21/13<0.14<0.14<0.14<0.140.141.011/11/13<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/10/14<0.14<0.14<0.14<0.140.141.005/12/14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/18/14<0.14<0.14<0.14<0.140.141.011/11/14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/23/15<0.14<0.14<0.14<0.140.141.005/12/15<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/24/15<0.14<0.14<0.14<0.140.141.011/10/15<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/22/16<0.14<0.14<0.14<0.140.141.005/19/16<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/23/1611/16/16<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/22/17<0.14<0.14<0.14<0.140.141.005/30/17<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/22/17<0.14<0.14<0.14<0.140.141.011/14/17<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/18/18<0.14<0.14<0.14<0.140.141.005/14/18<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/24/18<0.140.14<0.14<0.140.141.011/12/18<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/14/19<0.140.14<0.14<0.140.141.005/20/19<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/27/19<0.140.14<0.14<0.140.141.011/19/19<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/24/20<0.140.14<0.14<0.140.141.005/19/20<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.008/18/20<0.14<0.14<0.14<0.140.141.011/16/20<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.002/16/21<0.140.14<0.14<0.140.141.005/19/21<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.011/23/21<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.005/23/22<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.011/07/22<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.005/03/230.17 J<0.14<0.140.30 J<0.14<0.14<0.14<0.14<0.14<0.14<0.140.141.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 1,1,1-trichloroethane04/17/90<5.0<5.0<5.0<5.0<5.0MCL = 20007/11/91<5.0<5.0<5.0<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0NCGQS = 200 (2L Std)06/30/93<5.0<5.0<5.0<5.0<5.0<5.0<5.011/04/94<5.0<5.0<5.0<5.0<5.0<5.012/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.006/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.006/22/04<5.0<5.0<5.011/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.1<0.1<0.1<0.10.11.012/12/07<0.1<0.1<0.1<0.10.11.006/17/08<0.1<0.1<0.1<0.1<0.1<0.10.11.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.10.11.005/19/09<0.27<0.27<0.27<0.27<0.27<0.270.271.011/18/09<0.27<0.27<0.27<0.27<0.27<0.270.271.006/21/10<0.15<0.15<0.15<0.15<0.15<0.150.151.011/18/10<0.27<0.27<0.27<0.27<0.27<0.270.271.0injection event (03-29-11)05/23/11<0.65<0.65<0.65<0.65<0.65<0.650.651.008/23/110.651.0injection event (09-28-11)11/15/11<0.65<0.65<0.65<0.65<0.650.651.002/21/120.121.0injection event (04-14-12)06/05/12<0.12<0.12<0.12<0.12<0.120.121.010/09/120.121.0injection event (09-13-12)11/12/12<0.12<0.12<0.12<0.12<0.120.121.002/18/130.121.005/13/13<0.12<0.12<0.12<0.12<0.120.121.008/21/130.121.011/11/13<0.12<0.12<0.12<0.12<0.120.121.002/10/140.121.005/12/14<0.12<0.12<0.12<0.12<0.120.121.008/18/140.121.011/11/14<0.12<0.12<0.12<0.12<0.120.121.002/23/150.121.005/12/15<0.12<0.12<0.12<0.12<0.120.121.008/24/150.121.011/10/15<0.12<0.12<0.12<0.12<0.120.121.002/22/160.121.005/19/16<0.12<0.12<0.12<0.12<0.120.121.008/23/1611/16/16<0.12<0.12<0.12<0.12<0.120.121.002/22/170.121.005/30/17<0.12<0.12<0.12<0.12<0.120.121.008/22/170.121.011/14/17<0.12<0.12<0.12<0.12<0.120.121.002/18/180.121.005/14/18<0.12<0.12<0.12<0.12<0.120.121.008/24/1811/12/18<0.12<0.12<0.12<0.12<0.120.121.002/14/190.121.005/20/19<0.12<0.12<0.12<0.12<0.120.121.008/27/190.121.011/19/19<0.12<0.12<0.12<0.12<0.120.121.002/24/200.121.005/19/20<0.12<0.12<0.12<0.12<0.120.121.008/18/2011/16/20<0.12<0.12<0.12<0.12<0.120.121.002/16/210.121.005/19/21<0.12<0.12<0.12<0.12<0.120.121.011/23/21<0.12<0.12<0.12<0.12<0.120.121.005/23/22<0.12<0.12<0.12<0.12<0.120.121.011/07/22<0.12<0.12<0.12<0.12<0.120.121.005/03/23<0.12<0.12<0.12<0.12<0.120.121.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE 1,1,1-trichloroethane04/17/90<5.0<5.0MCL = 20007/11/91<5.0<5.0FBAC = MDL (LOD)05/28/9223<5.0<5.0NCGQS = 200 (2L Std)06/30/9311.9<5.0<5.011/04/94<5.0<5.0<5.0<5.012/20/94<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0<5.0<5.0<5.0<5.006/04/02<5.0<5.0<5.0<5.0<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/22/04<5.0<5.0<5.0<5.0<5.0<5.0<5.011/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.0<5.0<5.0<5.0<5.005/22/06<5.0<5.0<5.0<5.0<5.0<5.0<5.011/27/06<5.0<5.0<5.0<5.0<5.0<5.0<5.006/12/07<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.012/12/07<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.006/17/08<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.1<0.10.11.005/19/09<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.271.011/18/09<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.271.006/21/10<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.151.011/18/10<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.27<0.270.271.0injection event (03-29-11)05/23/11<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.650.651.008/23/11<0.65<0.65<0.65<0.650.651.0injection event (09-28-11)11/15/11<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.65<0.650.651.002/21/12<0.12<0.12<0.12<0.120.121.0injection event (04-14-12)06/05/12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.010/09/12<0.12<0.12<0.12<0.120.121.0injection event (09-13-12)11/12/12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/18/13<0.12<0.12<0.12<0.120.121.005/13/13<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/21/13<0.12<0.12<0.12<0.120.121.011/11/13<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/10/14<0.12<0.12<0.12<0.120.121.005/12/14<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/18/14<0.12<0.12<0.12<0.120.121.011/11/14<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/23/15<0.12<0.12<0.12<0.120.121.005/12/15<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/24/15<0.12<0.12<0.12<0.120.121.011/10/15<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/22/16<0.12<0.12<0.12<0.120.121.005/19/16<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/23/1611/16/16<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/22/17<0.12<0.12<0.12<0.120.121.005/30/17<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/22/17<0.12<0.12<0.12<0.120.121.011/14/17<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/18/18<0.12<0.12<0.12<0.120.121.005/14/18<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/24/18<0.12<0.12<0.12<0.120.121.011/12/18<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/14/19<0.12<0.12<0.12<0.120.121.005/20/19<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/27/19<0.12<0.12<0.12<0.120.121.011/19/19<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/24/20<0.12<0.12<0.12<0.120.121.005/19/20<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.008/18/20<0.12<0.12<0.12<0.120.121.011/16/20<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.002/16/21<0.12<0.12<0.12<0.120.121.005/19/21<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.011/23/21<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.005/23/22<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.011/07/22<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.005/03/23<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.12<0.120.121.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-23MW-24MDLMRLQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 trichloroethene04/17/90<5.0<5.0<5.0<5.0<5.0MCL = 507/11/91<5.0<5.0<5.0<5.0<5.0FBAC = MDL (LOD)05/28/92<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.0NCGQS = 3 (2L Std)06/30/93<5.0<5.0<5.0<5.0<5.0<5.0<5.02L Std = 2.8 (pre- Jan. 2010)11/04/94<5.0<5.0<5.0<5.0<5.0<5.02L Std = 3 (Jan. 2010)12/20/94<5.0<5.0<5.0<5.0<5.0<5.002/02/95<5.0<5.0<5.0<5.0<5.0<5.003/13/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/15/95<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.007/25/96<5.0<5.0<5.0<5.0<5.0<5.002/25/97<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.009/03/97<5.0<5.0<5.0<5.0<5.005/04/98<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/98<5.0<5.0<5.0<5.0<5.004/26/99<5.0<5.0<5.0<5.0<5.011/22/99<5.0<5.0<5.0<5.0<5.005/23/00<5.0<5.0<5.0<5.0<5.0<5.0<5.0<5.011/29/00<5.0<5.0<5.0<5.0<5.006/05/01<5.0<5.0<5.0<5.0<5.0<5.0<5.011/13/01<5.0<5.0<5.0cc06/04/02<5.0<5.0<5.003/12/03<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.006/22/04<5.0<5.0<5.011/30/04<5.0<5.0<5.006/01/05<5.0<5.0<5.011/02/05<5.0<5.0<5.005/22/06<5.0<5.0<5.011/27/06<5.0<5.0<5.006/12/07<0.1<0.1<0.1<0.10.11.012/12/07<0.1<0.1<0.1<0.10.11.006/17/08<0.10.4 J<0.1<0.1<0.1<0.10.11.0ic, cc11/05/08<0.1<0.1<0.1<0.1<0.1<0.10.11.005/19/09<0.38<0.38<0.38<0.38<0.38<0.380.381.011/18/09<0.38<0.38<0.38<0.38<0.38<0.380.381.006/21/10<0.13<0.13<0.13<0.13<0.13<0.130.131.011/18/10<0.380.45 J<0.38<0.38<0.38<0.380.381.0injection event (03-29-11)05/23/11<0.72<0.72<0.72<0.72<0.72<0.720.721.008/23/110.721.0injection event (09-28-11)11/15/11<0.72<0.72<0.72<0.72<0.720.721.002/21/120.151.0injection event (04-14-12)06/05/12<0.15<0.15<0.15<0.15<0.150.151.010/09/120.151.0injection event (09-13-12)11/12/12<0.15<0.15<0.15<0.15<0.150.151.002/18/130.151.005/13/13<0.15<0.15<0.15<0.15<0.150.151.008/21/130.151.011/11/13<0.150.49 J<0.15<0.15<0.150.151.002/10/140.151.005/12/14<0.15<0.15<0.15<0.15<0.150.151.008/18/140.151.011/11/14<0.15<0.15<0.15<0.15<0.150.151.002/23/150.151.005/12/15<0.15<0.15<0.15<0.15<0.150.151.008/24/150.151.011/10/15<0.15<0.15<0.15<0.15<0.150.151.002/22/160.151.005/19/16<0.15<0.15<0.15<0.15<0.150.151.008/23/1611/16/16<0.15<0.15<0.15<0.15<0.150.151.002/22/170.151.005/30/17<0.15<0.15<0.15<0.15<0.150.151.008/22/170.151.011/14/17<0.15<0.15<0.15<0.15<0.150.151.002/18/180.151.005/14/18<0.15<0.15<0.15<0.15<0.150.151.008/24/1811/12/18<0.15<0.15<0.15<0.15<0.150.151.002/14/190.151.005/20/19<0.15<0.15<0.15<0.15<0.150.151.008/27/190.151.011/19/19<0.15<0.15<0.15<0.15<0.150.151.002/24/200.151.005/19/20<0.15<0.15<0.15<0.15<0.150.151.008/18/2011/16/20<0.15<0.15<0.15<0.15<0.150.151.002/16/210.151.005/19/21<0.15<0.15<0.15<0.15<0.150.151.011/23/21<0.15<0.15<0.15<0.15<0.150.151.005/23/22<0.15<0.15<0.15<0.15<0.150.151.011/07/22<0.15<0.15<0.15<0.15<0.150.151.005/03/23<0.15<0.15<0.15<0.15<0.150.151.011/20/23<1.0<1.0<1.0<1.0<1.01.0MDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSConstituentSample Date MW-1MW-4MW-5MW-6FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMCLIENT: THE COUNTY OF ORANGE trichloroethene04/17/90<5.0<5.0MCL = 507/11/91<5.0<5.0FBAC = MDL (LOD)05/28/9216<5.0<5.0NCGQS = 3 (2L Std)06/30/9324.4<5.0<5.02L Std = 2.8 (pre- Jan. 2010)11/04/9422<5.0<5.0<5.02L Std = 3 (Jan. 2010)12/20/949<5.0<5.0<5.002/02/9519<5.0<5.0<5.003/13/9513<5.0<5.0<5.011/15/9514<5.0<5.0<5.007/25/9633<5.0<5.0<5.002/25/9730<5.0<5.0<5.009/03/9731<5.0<5.0<5.005/04/9821<5.0<5.0<5.011/02/9823<5.0<5.0<5.004/26/9912<5.0<5.0<5.011/22/998<5.0<5.0<5.005/23/0010<5.0<5.0<5.0<5.0<5.0<5.011/29/006<5.0<5.0<5.05<5.0<5.006/05/017<5.0<5.0<5.0<5.05<5.011/13/01<5.0<5.0<5.0<5.0<5.06 J<5.0cc06/04/02<5.05<5.0<5.0<5.07<5.003/12/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/18/03<5.0<5.0<5.0<5.0<5.0<5.0<5.012/08/03<5.0<5.0<5.0<5.0<5.0<5.0<5.006/22/04<5.0<5.0<5.0<5.0<5.0<5.0<5.011/30/04<5.0<5.0<5.0<5.0<5.0<5.0<5.006/01/05<5.0<5.0<5.0<5.0<5.0<5.0<5.011/02/05<5.0<5.0<5.0<5.0<5.0<5.0<5.005/22/06<5.0<5.0<5.0<5.0<5.0<5.0<5.011/27/06<5.0<5.0<5.0<5.0<5.0<5.0<5.006/12/07<0.11.9<0.1<0.1<0.1<0.1<0.14.20.11.012/12/070.3 J1.4<0.1<0.10.8 J0.9 J<0.12.30.11.006/17/08<0.11.7 J<0.1<0.11.1 J1.4 J<0.13.6 J<0.10.11.0ic, cc11/05/081 J0.8 J<0.1<0.10.6 J1 J<0.13.40.9 J0.11.005/19/09<0.381.1<0.38<0.380.94 J1.2<0.383.61.30.381.011/18/09<0.381.2<0.38<0.380.76 J1.1<0.384.41.10.381.006/21/10<0.131.1<0.13<0.130.64 J0.9 J<0.1330.88 J0.131.011/18/10<0.380.7 J<0.38<0.380.69 J0.87 J<0.383.210.381.0injection event (03-29-11)05/23/11<0.720.79 J<0.72<0.72<0.720.75 J<0.7241.10.721.008/23/11<0.720.91 J310.721.0injection event (09-28-11)11/15/11<0.72<0.72<0.72<0.72<0.720.8 J<0.722.21.10.721.002/21/120.61 J0.6 J2.80.73 J0.151.0injection event (04-14-12)06/05/12<0.150.44 J<0.15<0.150.45 J0.56 J<0.1520.74 J0.151.010/09/12<0.150.52 J0.71 J0.89 J0.151.0injection event (09-13-12)11/12/12<0.150.55 J<0.15<0.150.48 J<0.15<0.150.95 J0.89 J0.151.002/18/130.48 J<0.1520.92 J0.151.005/13/13<0.150.58 J<0.15<0.15<0.15<0.15<0.1520.75 J0.151.008/21/130.42 J<0.151.30.76 J0.151.011/11/13<0.15<0.15<0.15<0.150.46 J<0.15<0.151.70.76 J0.151.002/10/140.41 J<0.151.5<0.150.151.005/12/14<0.150.41 J<0.15<0.150.42 J<0.15<0.151.40.54 J0.151.008/18/140.57 J<0.151.40.54 J0.151.011/11/14<0.150.55 J<0.15<0.150.49 J<0.15<0.150.97 J0.42 J0.151.002/23/150.41 J<0.151.50.53 J0.151.005/12/15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.95 J<0.150.151.008/24/150.45 J0.49 J0.97 J0.46 J0.151.011/10/15<0.15<0.15<0.15<0.150.49 J<0.15<0.150.82 J<0.150.151.002/22/16<0.15<0.151.0<0.150.151.005/19/16<0.15<0.15<0.15<0.15<0.15<0.15<0.150.88 J0.42 J0.151.008/23/1611/16/16<0.15<0.15<0.15<0.15<0.15<0.15<0.150.82 J0.43 J0.151.002/22/17<0.15<0.151.10.47 J0.151.005/30/17<0.15<0.15<0.15<0.15<0.15<0.15<0.150.93 J0.43 J0.151.008/22/17<0.15<0.150.93 J0.44 J0.151.011/14/17<0.15<0.15<0.15<0.15<0.15<0.15<0.150.94 J<0.150.151.002/18/18<0.15<0.150.75 J<0.150.151.005/14/18<0.15<0.15<0.15<0.15<0.15<0.15<0.151.10.41 J0.151.008/24/180.48 J<0.150.99 J0.41 J0.151.011/12/18<0.15<0.15<0.15<0.15<0.15<0.15<0.150.68 J<0.150.151.002/14/19<0.15<0.150.62 J<0.150.151.005/20/19<0.15<0.15<0.15<0.15<0.15<0.15<0.150.48 J0.41 J0.151.008/27/19<0.15<0.15<0.15<0.150.151.011/19/19<0.15<0.15<0.15<0.15<0.15<0.15<0.150.47 J<0.150.151.002/24/20<0.15<0.150.49 J<0.150.151.005/19/20<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.151.008/18/20<0.15<0.150.60 J0.40 J0.151.011/16/20<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.151.002/16/21<0.15<0.150.49 J<0.150.151.005/19/21<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.151.011/23/21<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.151.005/23/22<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.151.011/07/22<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.150.151.005/03/23<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.15<0.151.011/20/23<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.0<1.01.0MW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMMW-23MW-24MDLMRLQA/QCCLIENT: THE COUNTY OF ORANGEMW-301MW-21d2 vinyl chloride04/17/90<10.0<10.0<5.0<5.0<10.0MCL = 207/11/91<10.0<10.0<5.0<5.0<10.0FBAC = MDL (LOD)05/28/92<10.0<10.0<5.0<5.0<10.0<10.0<10.0<10.0NCGQS = 0.03 (2L Std)06/30/93<10.0<10.0<5.0<10.0<10.0<10.0<10.02L Std = 0.015 (pre- Jan. 2010)11/04/94<10.0<10.0<10.0<10.0<10.0<10.02L Std = 0.03 (Jan. 2010)12/20/94<10.0<10.0<10.0<10.0<10.0<10.002/02/95<10.0<10.0<10.0<10.0<10.0<10.003/13/95<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/15/95<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0is07/25/96<10.0<10.0<10.0<10.0<10.0<10.0cc02/25/97<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.009/03/97<10.0<10.0<10.0<10.0<10.005/04/98<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/02/98<10.0<10.0<10.0<10.0<10.004/26/99<10.0<10.0<10.0<10.0<10.011/22/99<10.0<10.0<10.0<10.0<10.005/23/00<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.011/29/00<10.0<10.0<10.0<10.0<10.006/05/01<10.0<10.0<10.0<10.0<10.0<10.0<10.011/13/01<10.0<10.0<10.006/04/02<10.0<10.0<10.0sr03/12/03<10.0<10.0<10.0<10.0ht06/18/03<10.0<10.0<10.0<10.0<10.0ic, cc, ss12/08/03<10.0<10.0<10.0ic, cc06/22/04<10.0<10.0<10.0ic, cc11/30/04<10.0<10.0<10.006/01/05<10.0<10.0<10.011/02/05<10.0<10.0<10.005/22/06<10.0<10.0<10.011/27/06<10.0<10.0<10.006/12/07<0.1<0.11.380.11.012/12/07<0.1<0.10.3 J8.20.11.006/17/08<0.1<0.1<0.1<0.1<0.16.6 J0.11.0ic, cc11/05/08<0.1<0.1<0.1<0.10.95 J5.60.11.005/19/09<0.3<0.3<0.3<0.30.83 J6.40.31.011/18/09<0.3<0.3<0.3<0.31 J100.31.006/21/10<0.083<0.083<0.083<0.083<0.08360.0831.011/18/10<0.3<0.3<0.3<0.30.51 J7.10.31.0injection event (03-29-11)05/23/11<0.6<0.6<0.6<0.6<0.64.70.61.008/23/110.61.0injection event (09-28-11)11/15/11<0.6<0.6<0.6<0.65.40.61.002/21/120.321.0injection event (04-14-12)06/05/12<0.32<0.32<0.32<0.322.80.321.010/09/120.321.0injection event (09-13-12)11/12/12<0.32<0.32<0.32<0.327.50.321.002/18/130.321.005/13/13<0.32<0.32<0.32<0.326.70.321.008/21/130.321.011/11/13<0.320.88 J<0.32<0.324.30.321.002/10/140.321.005/12/14<0.32<0.32<0.32<0.329.00.321.008/18/140.321.011/11/14<0.32<0.32<0.320.99 J8.40.321.002/23/150.321.005/12/15<0.32<0.32<0.32<0.326.30.321.008/24/150.321.011/10/15<0.32<0.32<0.320.81 J6.40.321.002/22/160.321.005/19/16<0.32<0.32<0.32<0.324.00.321.008/23/1611/16/16<0.32<0.32<0.32<0.324.80.321.002/22/170.321.005/30/17<0.32<0.32<0.32<0.324.90.321.008/22/170.321.011/14/17<0.32<0.32<0.32<0.324.80.321.002/18/180.321.005/14/18<0.32<0.32<0.322.6<0.320.321.008/24/1811/12/18<0.32<0.32<0.325.0<0.320.321.002/14/190.321.005/20/19<0.32<0.32<0.323.2<0.320.321.008/27/190.321.011/19/19<0.32<0.32<0.322.7<0.320.321.002/24/200.321.005/19/20<0.32<0.32<0.321.7<0.320.321.008/18/2011/16/20<0.32<0.32<0.322.0<0.320.321.002/16/210.321.005/19/21<0.32<0.32<0.323.0<0.320.321.011/23/21<0.32<0.32<0.322.4<0.320.321.005/23/22<0.32<0.32<0.323.2<0.320.321.011/07/22<0.32<0.32<0.32<0.32<0.320.321.005/03/23<0.32<0.32<0.32<0.322.20.321.011/20/23<1.0<1.0<1.0<1.01.61.0HISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMMDLMRLQA/QCMW-6RMW-7MW-7RMW-13MW-14A MW-14BConstituentSample Date MW-1MW-4MW-5MW-6CLIENT: THE COUNTY OF ORANGE vinyl chloride04/17/90<10.0<10.0MCL = 207/11/91<10.0<10.0FBAC = MDL (LOD)05/28/92<10.0<10.0<10.0NCGQS = 0.03 (2L Std)06/30/93<10.0<10.0<10.02L Std = 0.015 (pre- Jan. 2010)11/04/94<10.0<10.0<10.0262L Std = 0.03 (Jan. 2010)12/20/94<10.0<10.0<10.0<10.002/02/95<10.0<10.0<10.02003/13/95<10.0<10.0<10.02011/15/95<10.0<10.0<10.013 Jis07/25/96<10.0<10.0<10.043 Jcc02/25/97<10.0<10.0<10.01109/03/9710 R<10.0<10.01505/04/98<10.0<10.0<10.01011/02/98<10.0<10.0<10.01104/26/99<10.0<10.0<10.0<10.011/22/99<10.0<10.0<10.01705/23/00<10.0<10.0<10.010<10.0<10.0<10.011/29/00<10.0<10.0<10.012<10.0<10.0<10.006/05/01<10.0<10.0<10.0<10.0<10.0<10.0<10.011/13/01<10.0<10.0<10.0<10.0<10.0<10.0<10.006/04/0210 J<10.0<10.010 J<10.0<10.0<10.0sr03/12/0317 J<10.0<10.0<10.0<10.0<10.0<10.0ht06/18/0314 J<10.0<10.0<10.0<10.0<10.0<10.0ic, cc, ss12/08/0313 J<10.0<10.0<10.0<10.0<10.0<10.0ic, cc06/22/0412 J<10.0<10.0<10.0<10.0<10.0<10.0ic, cc11/30/04<10.0<10.0<10.0<10.0<10.0<10.0<10.006/01/0516<10.0<10.0<10.0<10.0<10.0<10.011/02/0515<10.0<10.0<10.0<10.0<10.0<10.005/22/06<10.0<10.0<10.0<10.0<10.0<10.0<10.011/27/0622<10.0<10.0<10.0<10.0<10.0<10.006/12/0713.13.9<0.12.441.20.7 J40.11.012/12/0716.52.1<0.122.40.4 J0.97 J4.40.11.006/17/0812.8 J4 J<0.11.8 J3.4 J1 J0.7 J2.9 J0.3 J0.11.0ic, cc11/05/0814.62<0.11.53.52.5<0.13.43.30.11.005/19/09122.3<0.30.6 J3.22.90.78 J2.71.60.31.011/18/09123.4<0.30.94 J3.62.91.64.82.50.31.006/21/108.71.9<0.0830.69 J2.51.60.7 J1.60.62 J0.0831.011/18/10132.3<0.30.79 J3.80.56 J1.24.71.90.31.0injection event (03-29-11)05/23/118.21.1<0.6<0.62.61.2<0.62.4<0.60.61.008/23/113.32.43.61.10.61.0injection event (09-28-11)11/15/11101.4<0.6<0.61.7<0.61.21.61.50.61.002/21/122.912.610.321.0injection event (04-14-12)06/05/129.7<0.32<0.32<0.32<0.32<0.32<0.32<0.32<0.320.321.010/09/12<0.320.96 J1.10.321.0injection event (09-13-12)11/12/12121.2<0.320.62 J1.2<0.321.4<0.321.60.321.002/18/131.4<0.3220.321.005/13/13121.3<0.32<0.322.2<0.321.20.78 J<0.320.321.008/21/131.3<0.320.72 J0.54 J0.321.011/11/138.8<0.32<0.32<0.322.4<0.321.21.80.41 J0.321.002/10/142.5<0.321.4<0.320.321.005/12/14171.9<0.320.98 J3.5<0.322.02.9<0.320.321.008/18/143.4<0.324.4<0.320.321.011/11/14100.71 J<0.320.44 J3.3<0.322.04.2<0.320.321.002/23/152.7<0.323.7<0.320.321.005/12/15140.56 J<0.320.47 J2.7<0.321.83.5<0.320.321.008/24/151.8<0.323.1<0.320.321.011/10/15130.93 J<0.32<0.323.0<0.321.84.90.62 J0.321.002/22/16<0.32<0.321.1<0.320.321.005/19/16100.57 J<0.32<0.322.50.94 J1.52.6<0.320.321.008/23/1611/16/168.20.41 J<0.32<0.322.6<0.321.34.0<0.330.321.002/22/172.61.23.4<0.320.321.005/30/17110.45 J<0.32<0.322.21.31.13.3<0.320.321.008/22/172.30.67 J4.3<0.320.321.011/14/17110.68 J<0.32<0.322.5<0.321.55.40.60 J0.321.002/18/18<0.32<0.323.3<0.320.321.005/14/186.9<0.32<0.32<0.321.51.01.53.0<0.320.321.008/24/182.10.64 J4.40.59 J0.321.011/12/189.0<0.32<0.32<0.322.1<0.321.34.5<0.320.321.002/14/191.70.58 J2.3<0.320.321.005/20/199.1<0.32<0.32<0.321.30.76 J0.96 J1.8<0.320.321.008/27/19<0.32<0.323.6<0.320.321.011/19/198.6<0.32<0.32<0.321.2<0.321.33.60.56 J0.321.002/24/202.0<0.322.5<0.320.321.005/19/205.3<0.32<0.32<0.321.0<0.32<0.321.5<0.320.321.008/18/202.50.78 J<0.323.20.46 J0.321.011/16/207.8<0.32<0.32<0.321.40.85 J0.77 J2.7<0.320.321.002/16/211.60.77 J1.1<0.320.321.005/19/2111<0.32<0.32<0.322.01.11.22.0<0.320.321.011/23/218.6<0.32<0.32<0.321.80.66 J0.87 J3.50.96 J0.321.005/23/2210.0<0.32<0.32<0.322.11.11.42.4<0.320.321.011/07/22<0.32<0.32<0.32<0.32<0.32<0.32<0.32<0.32<0.320.321.005/03/236.1<0.32<0.32<0.32<0.320.98 J0.44 J1.11.6<0.32<0.320.321.011/20/236.2<1.0<1.0<1.0<1.0<1.0<1.0<1.02.6<1.0<1.01.0CLIENT: THE COUNTY OF ORANGEMW-23MW-24MDLMRLHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMQA/QCMW-16MW-17MW-20MW-21dMW-21sMW-22ConstituentSample Date MW-15MW-301MW-21d2 All results in µg/L Upgradient wells not shaded Shaded cells indicate data not available. Blue bolded cells indicate concentrations that exceeded the Method Detection Limit. Red bolded cells indicate concentrations that exceeded the NCGQS. Green bolded cells indicate concentrations that were >MDL but <MRL. MDL - method detection limit MRL - method reporting limit i - found in instrument blankt – found in trip blank f - found in field blankic - initial calibration beyond limits cc – continuing calibration beyond limitsmd - matrix spike duplicates beyond limits ss – surrogate spikes beyond limitsis - internal standard beyond limits ce - confirmation value beyond limitsJ - concentration deemed estimated B – concentration attributed to cross-contaminationR - concentration deemed unreliable sr - sample results of a duplicate are below detection limitsht - sample holding time was exceeded  - additional Appendix 2 constituent - limits not established FBAC - facility backgroundNCGQS – groundwater standard, as established by NCDEQ SWSL – Solid Waste Section Limit, as established by NCDEQSPL – statistical prediction limit GWPS - groundwater protection standardSWSL eliminated in 2019 and replaced with Method Reporting Limit 6801-MW21D2 and 6801MW-301 installed November 2022LOCATION: CHAPEL HILL, NORTH CAROLINAPROJECT: GROUNDWATER MONITORING PROGRAMHISTORY OF CHEMICAL ANALYSISORGANIC CONSTITUENTSCLIENT: THE COUNTY OF ORANGEFACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 6: Summary of Inorganic Constituents Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 6 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 6 INORGANIC CONSTITUENTS On November 20, through November 22, 2023 (sampling event 60), TRC personnel obtained groundwater samples from groundwater monitoring wells at the Orange County Solid Waste Management North Facility (north side of Eubanks Road). Groundwater samples analyzed for metals were not filtered in the field since they were analyzed for total metals. We have received copies of the certificates-of-analysis (dated December 6, 2023, and January 11, 2024). Information presented on the certificates are summarized as follows: • During event 60, the laboratory detected (>MDL) ten inorganic (metal) constituents, in one or more wells: arsenic, barium, cadmium, chromium, cobalt, copper, iron, mercury, nickel and vanadium. • Of the ten inorganic constituents detected, the laboratory was able to quantify (>MRL) the concentrations of all ten inorganic constituents in one or more wells: arsenic, barium, cadmium, chromium, cobalt, copper, iron, mercury, nickel and vanadium. • Of the ten inorganic constituents that the laboratory was able to quantify (>MRL), the concentrations of five metals exceeded their respective current Facility Background Concentrations and/or their respective current Groundwater Quality Standard (the higher value), in one or more wells.  The reported concentrations of arsenic in well 6801-MW14B (15.7 µg/l) exceeded its Facility Background Concentration (15.66 µg/l) and its Groundwater Quality Standard (10 µg/l).  The reported concentrations of chromium in well 6801-MW21S (14.9 µg/l) exceeded its Facility Background Concentration (3.228 µg/l) and its Groundwater Quality Standard (10 µg/l).  The reported concentrations of cobalt in wells 6801-MW14A (7.5 µg/l), 6801-MW14B (17.1 µg/l) and 6801-MW15 (14.8 µg/l), exceeded its Facility Background Concentration (2.15 µg/l) and its Groundwater Quality Standard (1 µg/l). As discussed below, however, an alternate source demonstration (ASD) was approved for cobalt during September 2011  The reported concentrations of copper in well 6801-MW14A (11.3 µg/l) exceeded its Facility Background Concentration (7.807 µg/l) but not its Groundwater Quality Standard (1,000 µg/l).  The reported concentration of mercury in wells 6801-MW21S (5.9 µg/l) 6801-MW21D (1.6 µg/l) and 6801-MW23 (5.7 µg/l) exceeded their Facility Background Concentration (0.20 µg/l) and the Groundwater Quality Standard (1 µg/l). Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 6 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Note. Results obtained from auxiliary background wells 6801-MW110S and 6801-MW110D are not included in the summary above or on the history tables for North landfill. 6801-MW-21D2 and 6801-MW-301 were installed in November 2022. During event 60, surface water sample 6801-SW2 had detection of Barium (90.6 µg/l). Surface water location 6801-SW-1 was dry in November 2023 and no sample was collected. Comments. Orange County Solid Waste Management has already characterized the nature and extent of constituents that exceeded their respective Groundwater Quality Standards, and prepared an Assessment of Corrective Measures, Corrective Action Plan, and Corrective Action Monitoring Plan addressing such constituents (all of which were previously submitted to NCDEQ for review and approval). Historical Note. During the November 2023 sampling event, groundwater samples were obtained from selected wells for analysis of hexavalent chromium, as well as ‘total’ chromium (all valence states). Since hexavalent chromium is not a constituent for which groundwater samples are analyzed, under this program, results concerning hexavalent chromium are not included in the history tables for the North Landfill. Samples are analyzed for hexavalent chromium in connection with groundwater Corrective Action at North landfill. Alternate Source Demonstrations. As summarized below, OCSWM has prepared Alternate Source Demonstrations to address apparent exceedances of several metals at one or more of the three solid waste management units (North, South, C&D). The following Alternate Source Demonstrations pertained to the North landfill: • Arsenic. OCSWM submitted an Alternate Source Demonstration (dated September 2, 2011), showing that total arsenic observed in groundwater at the facility could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated September 26, 2011), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total arsenic may be attributed to the naturally occurring presence of arsenic in onsite soils. • Cobalt. OCSWM submitted an Alternate Source Demonstration (dated September 2, 2011), showing that total cobalt observed in groundwater at the facility could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated September 26, 2011), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total cobalt may be attributed to the naturally occurring presence of cobalt in onsite soils. • Lead. OCSWM submitted an Alternate Source Demonstration (dated September 2, 2011), showing that total lead observed in groundwater at the facility could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated September 26, 2011), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total lead may be attributed to the naturally occurring presence of lead in onsite soils. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 6 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 • Selenium. OCSWM submitted an Alternate Source Demonstration (dated September 2, 2011), showing that total selenium observed in groundwater at the facility could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated September 26, 2011), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total selenium may be attributed to the naturally occurring presence of selenium in onsite soils. The following Alternate Source Demonstrations pertained to the South landfill: • Cobalt. OCSWM submitted an Alternate Source Demonstration showing that total cobalt observed in groundwater at the site could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated March 30, 2011), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total cobalt may be attributed to the naturally occurring presence of cobalt in onsite soils. • Vanadium. OCSWM submitted an Alternate Source Demonstration showing that total vanadium observed in groundwater at the site could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated May 26, 2010), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total vanadium may be attributed to the naturally occurring presence of vanadium in onsite soil and rock. Whereas these Alternate Source Demonstrations were submitted to address particular exceedances at either North or South landfill, we suggest that all Alternate Source Demonstrations noted above are applicable to all waste management units at the facility. Such general applicability is demonstrated by the Alternate Source Demonstrations submitted separately for cobalt at both North and South waste management units. Future Actions. Based upon the results of the subject sampling event, the facility may continue monitoring groundwater in accordance with the current program. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 6: Metals - Graphs 0 5 10 15 20 25 Cadmium Concentration (µg/L)Date Current and Historic Cadmium Concentrations -North Facility MW-20 NC 2L Standard 0 20 40 60 80 100 120 140 Chromium Concentration (µg/L)Date Current and Historic Chromium Concentrations -North Facility MW-21S MW-21D MW-23 MW-24 NC 2L Standard 0 1 2 3 4 5 6 7 8 9 Mercury Concentration (µg/L)Date Current and Historic Mercury Concentrations -North Facility MW-21S MW-21D MW-23 MW-24 NC 2L Standard Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 6: Metals - Tables antimony 04/17/90 MCL = 6 07/11/91 FBAC = 1.85 05/28/92 NCGQS = 1 (GWPS)06/30/93 GWPS = 1.4 (pre-Oct. 2010)11/04/94 GWPS = 1 (Oct. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 06/05/01 11/13/01 06/04/02 03/12/03 06/18/03 12/08/03 06/22/04 11/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 12/12/07 <1.2 1.2 JB 1.2 JB 1.2 6.0 i 03/06/08 1.8 J 1.2 6.0 06/12/08 <1.2 <1.2 <1.2 <1.2 1.7 JB <1.2 1.2 6.0 i 11/05/08 <1.2 <1.2 <1.2 1.5 J <1.2 <1.2 1.2 6.0 05/19/09 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 0.68 6.0 11/18/09 <0.073 <0.073 0.126 J <0.073 <0.073 <0.073 0.073 6.0 06/21/10 <0.22 0.352 J <0.22 <0.22 <0.22 <0.22 0.22 6.0 11/18/10 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 05/23/11 <0.22 0.37 J <0.22 <0.22 <0.22 <0.22 0.22 6.0 11/15/11 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 i 06/05/12 1 JB 0.691 JB <0.22 <0.22 <0.22 0.22 6.0 i 11/12/12 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 i 05/13/13 0.32 J <0.22 <0.22 <0.22 <0.22 0.22 6.0 11/11/13 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 05/12/14 <0.220 0.335 J <0.220 <0.220 <0.220 0.220 6.0 11/11/14 0.603 J <0.220 <0.220 <0.220 <0.220 0.220 6.0 02/23/15 05/12/15 0.780 J <0.220 <0.220 0.239 J <0.220 0.220 6.0 08/24/15 11/10/15 0.237 J 1.05 J 0.548 J 0.303 J <0.220 0.220 6.0 02/22/16 05/19/16 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 08/23/16 11/16/16 <1.00 J <0.220 <0.220 <0.220 <0.220 0.220 6.0 02/22/17 05/30/17 <0.370 <0.370 <0.370 <0.370 <0.370 0.370 6.0 08/22/17 11/14/17 <0.370 <0.370 <0.370 <0.370 <0.370 0.370 6.0 02/18/18 05/14/18 <1.85 <1.85 <1.85 <1.85 <1.85 1.85 6.0 08/24/18 11/12/18 <1.85 <1.85 <1.85 <1.85 <1.85 1.85 5.0 02/14/19 05/20/19 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 08/27/19 11/19/19 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 02/24/20 05/19/20 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 08/18/20 11/16/20 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 02/16/21 05/19/21 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 11/23/21 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 05/23/22 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 11/07/22 <0.52 <0.52 <0.52 <0.52 <0.52 0.520 5.0 05/02/23 <9.0 <9.0 <9.0 <9.0 <9.0 9.0 20 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 MW-6R FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS CLIENT: THE COUNTY OF ORANGE Constituent Sample Date MW-1 MW-4 MW-5 MW-6 MW-7 MW-7R MW-13 MW-14A MW-14B MDL MRL QA/QC INORGANIC CONSTITUENTS: TOTAL METALS antimony 04/17/90 MCL = 6 07/11/91 FBAC = 1.85 05/28/92 NCGQS = 1 (GWPS)06/30/93 GWPS = 1.4 (pre-Oct. 2010)11/04/94 cc,i,ms GWPS = 1 (Oct. 2010)12/20/94 i 02/02/95 03/13/95 ms 11/15/95 ms 07/25/96 i,f,ms 02/25/97 i 09/03/97 05/04/98 i 11/02/98 i 04/26/99 11/22/99 q 05/23/00 q 11/29/00 q 06/05/01 11/13/01 ms 06/04/02 03/12/03 06/18/03 12/03/03 06/22/04 11/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 12/12/07 <1.2 <1.2 <1.2 1.3 JB <1.2 <1.2 <1.2 1.2 6.0 i 03/06/08 1.2 6.0 06/12/08 4 JB <1.2 <1.2 1.8 JB <1.2 2.2 JB <1.2 1.4 JB 1.9 JB 1.2 6.0 i 11/05/08 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 6.0 05/19/09 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 0.68 6.0 11/18/09 <0.073 <0.073 <0.073 <0.073 <0.073 0.089 J <0.073 <0.073 0.337 J 0.073 6.0 06/21/10 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 11/18/10 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 05/23/11 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 11/15/11 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 i 06/05/12 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 i 11/12/12 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.642 J <0.22 0.22 6.0 i 05/13/13 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0 11/11/13 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 05/12/14 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 11/11/14 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 02/23/15 05/12/15 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 08/24/15 11/10/15 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 02/22/16 05/19/16 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 08/23/16 11/16/16 <0.220 <0.220 <0.220 <1.10 D <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0 02/22/17 05/30/17 <0.370 <0.370 <0.370 <1.85 UD <0.370 <0.370 <0.370 <0.370 <0.370 0.37/1.85 6.0 08/22/17 11/14/17 <0.370 <0.370 <0.370 <0.370 <0.370 <0.370 <0.370 <0.370 <0.370 0.370 6.0 02/18/18 05/14/18 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 1.850 6.0 08/24/18 11/12/18 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 1.85 5.0 02/14/19 05/20/19 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 08/27/19 11/19/19 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 02/24/20 05/19/20 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 08/18/20 11/16/20 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 02/16/21 05/19/21 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 11/23/21 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 05/23/22 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0 11/07/22 <0.52 <0.52 <0.52 <0.52 <0.52 <0.52 <0.52 <0.52 <0.52 0.520 5.0 05/02/23 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 9.0 20 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS MRLConstituentSample Date MW-15 MW-24 QA/QCMW-16 MW-17 MDLMW-23MW-21D2MW-20 MW-21D MW-21S MW-22 MW-301 arsenic 04/17/90 <10 <10 <10 <10 <10 MCL = 10 07/11/91 <10 <10 <10 <10 <10 FBAC = 15.66 05/28/92 <10 <10 <10 <10 <10 <10 <10 <10 NCGQS = 10 (2L Std)06/30/93 <10 <10 <10 <10 <10 <10 <10 2L Std = 50 (pre- Jan. 2010)11/04/94 <10 <10 <10 15 B 11 B 16 B cc,i,ms 2L Std = 10 (Jan. 2010)12/20/94 <10 <10 <10 12 B <10 13 B i 02/02/95 <10 <10 <10 <10 <10 <10 03/13/95 <10 <10 <10 <10 <10 <10 <10 11 J ms 11/15/95 <10 <10 <10 <10 <10 <10 <10 17 J ms 07/25/96 <10 <10 <10 <10 <10 12 J i,f,ms 02/25/97 <10 <10 <10 <10 <10 <10 <10 <10 i 09/03/97 <10 <10 21 <10 14 05/04/98 <10 <10 <10 <10 <10 <10 <10 <10 i 11/02/98 <10 <10 45 <10 11 B i 04/26/99 <10 <10 <10 <10 <10 11/22/99 <10 <10 <10 <10 11 J q 05/23/00 <10 <10 20 J <10 <10 <10 <10 <10 q 11/29/00 <10 <10 21 J <10 <10 q 06/05/01 <10 <10 20 <10 15 <10 <10 11/13/01 <10 <10 <10 ms 06/04/02 <10 <10 <10 03/12/03 <10 <10 <10 <10 06/18/03 <10 <10 <10 <10 <10 12/08/03 <10 <10 <10 06/22/04 <10 <10 16 11/30/04 <10 <10 13 06/01/05 <10 <10 <10 11/02/05 <10 <10 <10 05/22/06 <10 <10 <10 11/27/06 <10 <10 <10 06/12/07 <5.5 <5.5 <5.5 <5.5 5.5 10 12/12/07 <5.5 <5.5 <5.5 5.5 10 03/06/08 <5.5 5.5 10 06/12/08 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 5.5 10 i 11/05/08 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 5.5 10 f 05/19/09 <2.8 20.1 3.9 J <2.8 <2.8 10.7 2.8 10 11/18/09 5.74 JB 33.3 <2.8 <2.8 <2.8 8.59 JB 2.8 10 f 06/21/10 3.14 JB 26 15.5 B 3.42 JB <2.8 11.4 B 2.8 10 11/18/10 <2.8 36.9 <2.8 <2.8 <2.8 7.67 J 2.8 10 05/23/11 <2.8 21.8 <2.8 <2.8 <2.8 10.6 2.8 10 11/15/11 <2.8 <2.8 <2.8 <2.8 <2.8 2.8 10 06/05/12 <2.8 <2.8 3.22 J <2.8 <2.8 2.8 10 11/12/12 <2.8 3.27 J <2.8 <2.8 8.07 J 2.8 10 05/13/13 <5.4 <5.4 <5.4 <5.4 9.96 J 5.4 10 11/11/13 <5.40 <5.40 <5.40 <5.40 9.28 J 5.40 10.0 05/12/14 <5.40 <5.40 <5.40 <5.40 <5.40 5.40 10.0 11/11/14 <5.40 <5.40 <5.40 <5.40 <5.40 5.40 10.0 02/23/15 05/12/15 <6.80 <6.80 <6.80 <6.80 7.30 J 6.80 10 08/24/15 11/10/15 <6.80 8.45 J 10.5 10.2 15.5 6.80 10 02/22/16 05/19/16 <6.80 <6.80 <6.80 <6.80 10.4 6.80 10 08/23/16 11/16/16 <6.80 <6.80 <6.80 <6.80 31.5 6.80 10 01/05/17 6.80 10 verification 02/22/17 05/30/17 <6.80 <6.80 <6.80 <6.80 11.5 6.80 10 08/22/17 11/14/17 <6.80 <6.80 <6.80 <6.80 18.5 6.80 10 01/01/18 6.80 10 verification 02/18/18 05/14/18 <6.80 <6.80 <6.80 8.76 J <6.80 6.80 10 08/24/18 11/12/18 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 02/14/19 05/20/19 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 08/27/19 11/19/19 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 02/24/20 05/19/20 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 08/18/20 11/16/20 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 02/16/21 05/19/21 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 11/23/21 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 05/23/22 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 11/07/22 <6.4 <6.4 <6.4 16 J <6.4 6.40 20 05/02/23 <6.4 <6.4 <6.4 <6.4 14 J 6.40 20 11/20/23 <10.0 <10.0 <10.0 <10.0 15.7 10.0 MW-6R MRLMW-7 LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MW-14A MW-14B QA/QCMDLConstituentSample Date MW-1 MW-4 MW-5 MW-6 MW-13MW-7R CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS arsenic 04/17/90 <10 <10 MCL = 10 07/11/91 <10 <10 FBAC = 15.66 05/28/92 <10 <10 <10 NCGQS = 10 (2L Std)06/30/93 <10 <10 <10 2L Std = 50 (pre- Jan. 2010)11/04/94 <10 <10 <10 <10 cc,i,ms 2L Std = 10 (Jan. 2010)12/20/94 <10 <10 <10 <10 i 02/02/95 <10 <10 <10 <10 03/13/95 <10 <10 <10 <10 ms 11/15/95 <10 <10 <10 <10 ms 07/25/96 <10 <10 <10 <10 i,f,ms 02/25/97 <10 <10 <10 <10 i 09/03/97 <10 <10 <10 <10 05/04/98 <10 <10 <10 <10 i 11/02/98 <10 <10 <10 <10 i 04/26/99 <10 <10 <10 <10 11/22/99 <10 <10 <10 <10 q 05/23/00 <10 <10 <10 <10 <10 <10 <10 q 11/29/00 <10 <10 <10 <10 <10 <10 <10 q 06/05/01 <10 <10 <10 <10 <10 <10 <10 11/13/01 <10 <10 <10 <10 <10 <10 <10 ms 06/04/02 <10 <10 <10 <10 <10 <10 <10 03/12/03 <10 <10 <10 <10 <10 <10 <10 06/18/03 <10 <10 <10 <10 <10 <10 <10 12/03/03 <10 <10 <10 <10 <10 <10 <10 06/22/04 <10 <10 <10 <10 <10 <10 <10 11/30/04 <10 <10 <10 <10 <10 <10 <10 06/01/05 <10 <10 <10 <10 <10 <10 <10 11/02/05 <10 <10 <10 <10 <10 <10 <10 05/22/06 <10 <10 <10 <10 <10 <10 <10 11/27/06 <10 <10 <10 <10 <10 <10 <10 06/12/07 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 5.5 10 12/12/07 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 5.5 10 03/06/08 5.5 10 06/12/08 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 5.5 10 i 11/05/08 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 <5.5 5.5 10 f 05/19/09 <2.8 <2.8 <2.8 16 <2.8 <2.8 4.9 J <2.8 <2.8 2.8 10 11/18/09 <2.8 <2.8 <2.8 5.56 JB <2.8 <2.8 <2.8 2.92 JB <2.8 2.8 10 f 06/21/10 <2.8 3.72 JB <2.8 10.3 B <2.8 <2.8 <2.8 <2.8 <2.8 2.8 10 11/18/10 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 4.19 J <2.8 <2.8 2.8 10 05/23/11 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 2.8 10 11/15/11 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 2.8 10 06/05/12 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 2.8 10 11/12/12 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 <2.8 2.8 10 05/13/13 <5.4 <5.4 <5.4 <5.4 <5.4 <5.4 <5.4 <5.4 <5.4 5.4 10 11/11/13 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 5.40 10.0 05/12/14 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 5.40 10.0 11/11/14 <5.40 <5.40 <5.40 <10.8 <5.40 <5.40 <5.40 <5.40 <5.40 5.40/10.8 10.0 02/23/15 05/12/15 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10 08/24/15 11/10/15 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 9.62 J 8.07 J 7.41 J 6.80 10 02/22/16 05/19/16 <6.80 <6.80 <6.80 42.6 JD <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10 08/23/16 11/16/16 <6.80 <6.80 <6.80 77.0 R <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10 unreliable 01/05/17 <6.80 6.80 10 verification 02/22/17 05/30/17 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10 08/22/17 11/14/17 <6.80 <6.80 <6.80 23.4 R <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10 unreliable 01/01/18 <6.80 verification 02/18/18 05/14/18 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10 08/24/18 11/12/18 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 02/14/19 05/20/19 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 08/27/19 11/19/19 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 02/24/20 05/19/20 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 08/18/20 11/16/20 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 02/16/21 05/19/21 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 11/23/21 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 05/23/22 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10 11/07/22 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 6.40 20 05/02/23 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 6.40 20 11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 10.0 MW-24 QA/QCMW-20 MW-21D LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM INORGANIC CONSTITUENTS: TOTAL METALS MW-21S MW-22 MW-23 MDL MRLMW-15 MW-17MW-16ConstituentSample Date MW-21D2 CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY HISTORY OF CHEMICAL ANALYSIS MW-301 barium 04/17/90 <50 71 <50 <50 <50 MCL = 2000 07/11/91 <100 <100 482 <100 111 FBAC = 81.94 05/28/92 <100 <100 <100 <100 <100 <100 109 205 NCGQS = 700 (2L Std)06/30/93 <250 <500 <500 <500 <500 <500 <500 2L Std = 2000 (pre- Jan. 2010)11/04/94 <500 <500 <500 <500 <500 <500 i,sd 2L Std = 700 (Jan. 2010)12/20/94 <500 <500 <500 <500 <500 <500 02/02/95 <500 <500 <500 <500 <500 <500 03/13/95 <500 <500 <500 <500 <500 <500 <500 <500 11/15/95 <500 <500 <500 <500 <500 <500 <500 <500 ms 07/25/96 <500 <500 <500 <500 <500 <500 i,t,f 02/25/97 <500 <500 <500 <500 <500 <500 <500 <500 i,t,f,sd 09/03/97 <500 <500 <500 <500 <500 05/04/98 <500 <500 <500 <500 <500 <500 <500 <500 11/02/98 <500 <500 676 <500 <500 ics 04/26/99 <500 <500 <500 <500 <500 11/22/99 <500 <500 <500 <500 <500 05/23/00 <500 <500 <500 <500 <500 <500 <500 <500 11/29/00 <500 <500 <500 <500 <500 t, f 06/05/01 <500 <500 <500 <500 <500 <500 <500 11/13/01 <500 <500 <500 06/04/02 <500 <500 <500 03/12/03 <500 <500 <500 <500 06/18/03 <500 <500 <500 <500 <500 12/08/03 <500 <500 <500 06/22/04 <500 <500 <500 11/30/04 <500 <500 <500 06/01/05 <500 <500 <500 11/02/05 <500 <500 <500 05/22/06 <500 <500 <500 11/27/06 <500 <500 <500 i 06/12/07 64.9 JB 128 94.5 J 244 1.1 100 t, f 12/12/07 53.1 J 94.3 J 223 1.1 100 i 03/06/08 23.6 J 1.1 100 06/12/08 53.2 J 91.4 J 60.1 J 11.9 J 102 212 1.1 100 t, f 11/05/08 53.7 JB 163 20.4 JB 14.4 JB 108 223 1.1 100 t, f 05/19/09 68.8 J 77.9 J 33.5 J 8.83 J 33.4 J 273 4.2 100 11/18/09 57.6 J 71.5 J 14 J 4.63 J 61.4 J 254 1 100 06/21/10 107 49.5 J 122 8.31 J 47.2 J 190 1 100 11/18/10 63.3 J 91.3 J 18.1 J 3.12 J 41.8 J 218 1 100 05/23/11 77.5 J 67.3 J 17.2 J 22.1 J 59.6 J 256 1 100 11/15/11 66.3 J 15.6 J 6.67 J 43.3 J 264 1 100 06/05/12 88.1 J 30.3 J 20.7 J 50.7 J 253 1 100 11/12/12 67.1 J 33.2 J 21.6 J 39.9 J 266 1 100 05/13/13 64.1 J 17.6 J 18.4 J 59.1 J 240 1 100 i 11/11/13 64.2 J 22.7 J 23.3 J 105 275 1.00 100 05/12/14 66.8 J 22.3 J 16.5 J 29.2 J 258 1.00 100 11/11/14 67.9 J 16.1 J 6.42 J 101 276 1.00 100 02/23/15 05/12/15 79.3 J 17.3 J 10.0 J 59.9 J 309 1.00 100 08/24/15 11/10/15 65.5 J 15.0 J 4.93 J 99.3 J 261 1.00 100 02/22/16 05/19/16 76.2 J 8.83 J 8.99 J 50.8 267 1.00 100 08/23/16 11/16/16 73.0 J 8.94 J 9.40 J 109 299 1.00 100 02/22/17 05/30/17 67.4 J 8.68 J 11.5 J 29.5 J 291 1.00 100 08/22/17 11/14/17 72.3 J 9.41 J 5.81 J 70.6 J 317 1.00 100 02/18/18 05/14/18 69.0 J 10.5 J 10.3 J 249 25.4 J 1.000 100 08/24/18 11/12/18 69.8 10.5 8.29 J 216 27.2 1.10 10 2/1419 05/20/19 78.8 7.33 J 8.86 J 257 55.3 1.10 10 08/27/19 11/19/19 75.4 8.10 J 14.1 271 25.7 1.10, 5.50 10.0, 50.0 02/24/20 05/19/20 77.3 5.92 J 7.96 J 234 42.7 1.10 10 08/18/20 11/16/20 68.8 5.82 J 9.99 J 210 68.5 1.10 10 02/16/21 05/19/21 88.4 6.57 J 9.72 J 285 43.0 1.10 10 11/23/21 76.3 7.25 J 9.02 J 294 73.2 1.10 10 05/23/22 79.5 7.38 J 13.8 295 47.6 1.10 10 11/07/22 73 7.5 J 6.4 J 280 69 4.40 10 05/02/23 79 18 8.4 J 16 290 4.40 10 11/20/23 80.1 5.8 5.3 17.4 290 5.0 MW-6R MRL QA/QCMW-7RMW-5ConstituentSample Date MW-1 MW-14A MW-14BMW-4 MW-6 MW-7 MDL LOCATION: CHAPEL HILL, NORTH CAROLINA FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE INORGANIC CONSTITUENTS: TOTAL METALS HISTORY OF CHEMICAL ANALYSIS PROJECT: GROUNDWATER MONITORING PROGRAM MW-13 barium 04/17/90 <50 <50 MCL = 2000 07/11/91 <100 <100 FBAC = 81.94 05/28/92 <100 <100 <100 NCGQS = 700 (2L Std)06/30/93 <500 <500 <500 2L Std = 2000 (pre- Jan. 2010)11/04/94 <500 <500 <500 <500 i,sd 2L Std = 700 (Jan. 2010)12/20/94 <500 <500 <500 <500 02/02/95 <500 <500 <500 <500 03/13/95 <500 <500 <500 <500 11/15/95 <500 <500 <500 758 J ms 07/25/96 <500 <500 <500 <500 i,t,f 02/25/97 <500 <500 <500 <500 i,t,f,sd 09/03/97 <500 <500 <500 <500 05/04/98 <500 <500 <500 <500 11/02/98 <500 <500 <500 <500 ics 04/26/99 <500 <500 <500 <500 11/22/99 <500 <500 <500 <500 05/23/00 <500 <500 <500 <500 <500 <500 <500 11/29/00 <500 <500 <500 <500 <500 <500 <500 t, f 06/05/01 <500 <500 <500 <500 <500 <500 <500 11/13/01 <500 <500 <500 <500 <500 <500 <500 06/04/02 <500 <500 <500 <500 <500 <500 <500 03/12/03 <500 <500 <500 <500 <500 <500 <500 06/18/03 <500 <500 <500 <500 <500 <500 <500 12/08/03 <500 <500 <500 <500 <500 <500 <500 06/22/04 <500 <500 <500 <500 <500 <500 <500 11/30/04 <500 <500 <500 <500 <500 <500 <500 06/01/05 <500 <500 <500 <500 <500 <500 <500 11/02/05 <500 <500 <500 <500 <500 <500 <500 05/22/06 <500 <500 <500 <500 <500 <500 <500 11/27/06 <500 <500 <500 <500 <500 <500 <500 i 06/12/07 63.5 JB 112 35.5 JB 167 9.3 JB 13.9 JB 39.8 JB 193 1.1 100 t, f 12/12/07 43.4 J 148 27.7 J 165 4.4 JB 2.2 JB 37.7 J 1.1 100 i 03/06/08 1.1 100 06/12/08 89.1 J 114 20.3 J 171 2.6 JB 3.2 JB 66.7 J 5.9 JB 110 1.1 100 t, f 11/05/08 101 129 27.4 JB 237 1.8 JB 5 JB 53.2 JB 5.7 JB 14.5 JB 1.1 100 t, f 05/19/09 96.8 J 116 28.9 J 454 <4.2 6.25 J 58.6 J <4.2 9.85 J 4.2 100 11/18/09 86.6 J 222 26.8 J 338 2.31 J 8.2 J 45.9 J 3.26 J 10.9 J 1 100 06/21/10 65.7 J 177 20.8 J 92.2 J 2.21 J 7.0 J 37.2 J 2.92 J 12.5 J 1 100 11/18/10 75.5 J 148 21.9 J 126 2.19 J 10.4 J 47.7 J 4.35 J 10.9 J 1 100 05/23/11 129 155 26.2 J 197 2.32 J 4.78 J 57.3 J 4.84 J 9.69 J 1 100 11/15/11 93.7 J 163 25.8 J 495 2.36 J 15.3 J 56.5 J 7.17 J 7.42 J 1 100 06/05/12 125 144 28 J 171 2.37 J 4.76 J 59.9 J 5.2 J 10.2 J 1 100 11/12/12 141 187 24 J 244 D 2.04 J 1.95 J 59.1 J 16.3 J 9.5 J 1 100 05/13/13 90.8 J 123 20.8 J 168 2.19 J 7.26 J 55 J 3.14 J 8.36 J 1 100 i 11/11/13 114 139 29.7 J 155 2.97 J 3.02 J 56.7 J 5.12 J 7.38 J 1.00 100 05/12/14 66.2 J 170 30.5 J 176 2.80 J 7.19 J 53.0 J 3.71 J 7.47 J 1.00 100 11/11/14 148 129 28.9 J 186 2.82 J 4.84 J 58.2 J 4.96 J 6.53 J 1.00 100 02/23/15 05/12/15 105 127 30.7 J 208 2.37 J 15.2 J 68.4 J 6.54 J 7.33 J 1.00 100 08/24/15 11/10/15 123 172 25.8 J 159 2.86 J 1.93 J 55.4 J 5.37 J 6.96 J 1.00 100 02/22/16 05/19/16 90.3 J 125 24.4 J 185 D 1.94 J 1.36 J 58.3 J 3.71 J 5.59 J 1.00 100 08/23/16 11/16/16 124 126 26.0 J 211 1.98 J 3.77 J 58.7 J 5.01 J 4.97 J 1.00 100 02/22/17 05/30/17 82.1 J 115 25.7 J 179 2.00 J 1.52 J 55.5 J 3.18 J 5.38 J 1.00 100 08/22/17 11/14/17 130 173 24.7 J 213 2.03 J 1.13 J 62.6 J 4.41 J 4.49 J 1.00 100 02/18/18 05/14/18 92.3 J 128 23.4 J 190 2.21 J 2.98 J 59.0 J 4.18 J 5.21 J 1.00 100 08/24/18 11/12/18 78.1 156 23.8 164 D 2.49 J 3.13 J 58.0 4.24 J 5.81 J 1.1; 5.50 10; 50 02/14/19 05/20/19 66.4 129 24.2 185 2.49 J 1.78 J 60.2 4.63 J 5.33 J 1.10 10 08/27/19 11/19/19 151 193 23.5 205 D 1.60 J 1.53 J 65.1 3.37 J 4.19 J 1.10, 5.50 10.0, 50.0 02/24/20 05/19/20 104 122 22.1 193 1.49 J <1.10 60.0 3.01 J 4.17 J 1.10 10 08/18/20 11/16/20 94.7 176 18.7 163 1.75 J 1.19 J 49.8 3.15 J 4.28 J 1.10 10 02/16/21 05/19/21 105 161 24.0 186 2.53 J 1.55 J 59.4 4.41 J 4.71 J 1.10 10 11/23/21 142 176 26.8 197 2.29 J 1.89 J 56.6 4.67 J 3.99 J 1.10 10 05/03/22 116 152 23.9 161 2.65 J 2.15 J 59 5.54 J 4.73 J 1.10 10 11/07/22 160 190 28 130 <4.4 <4.4 63 <4.4 <4.4 4.40 10 05/02/23 110 200 31 170 <4.4 7.5 J <4.4 62 <4.4 <4.4 6.9 J 4.40 10 11/20/23 160 179 27.5 136 <5.0 <5.0 <5.0 63.7 <5.0 <5.0 7.5 5.0 MW-24 INORGANIC CONSTITUENTS: TOTAL METALS MW-22 QA/QCMW-21S HISTORY OF CHEMICAL ANALYSIS MRLMW-21DConstituentMW-16 MW-17 MW-20Sample Date MW-15 MW-23 CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MW-21D2 MDLMW-301 beryllium 04/17/90 MCL = 4 07/11/91 FBAC = 0.571 05/28/92 NCGQS = 4 (GWPS)06/30/93 11/04/94 <2 <2 <2 <2 <2 8 i 12/20/94 <2 <2 <2 <2 <2 10 02/02/95 <2 <2 2.7 <2 <2 20 i 03/13/95 <2 <2 2.8 3.8 2.1 <2 <2 24 t 11/15/95 <2 <2 2.6 2 7.1 <2 <2 20 07/25/96 <2 <2 <2 <2 <2 16 J d 02/25/97 <2 <2 <2 <2 <2 <2 <2 <2 f 09/03/97 <2 <2 <2 <2 8 05/04/98 3.6 <2 <2 <2 2.6 <2 <2 11.6 11/02/98 <2 <2 5.2 B <2 8.4 B i 04/26/99 <2 <2 <2 <2 7.6 11/22/99 <2 <2 <2 <2 <2 05/23/00 <2 <2 <2 <2 <2 <2 <2 <2 11/29/00 <2 <2 <2 <2 <2 06/05/01 <2 <2 <2 <2 <2 <2 <2 11/13/01 <2 <2 <2 i 06/04/02 <2 <2 <2 03/12/03 <2 <2 <2 <2 06/18/03 <2 <2 <2 <2 <2 12/08/03 <2 <2 <2 06/22/04 <2 <2 <2 11/30/04 <2 <2 <2 06/01/05 <2 <2 <2 11/02/05 <2 <2 <2 05/22/06 <2 <2 <2 11/27/06 <2 <2 <2 06/12/07 0.6 J 1.3 <0.2 <0.2 0.2 1.0 12/12/07 <0.2 1 B <0.2 0.2 1.0 i 03/06/08 <0.2 0.2 1.0 06/12/08 <0.2 <0.2 1.7 <0.2 0.3 J <0.2 0.2 1.0 11/05/08 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.0 05/19/09 0.08 J <0.08 0.14 J <0.08 <0.08 <0.08 0.08 1.0 11/18/09 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 06/21/10 <0.1 <0.1 0.473 J <0.1 <0.1 <0.1 0.1 1.0 11/18/10 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 05/23/11 0.125 J 0.111 J <0.1 <0.1 <0.1 <0.1 0.1 1.0 11/15/11 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 06/05/12 0.133 J <0.1 <0.1 <0.1 <0.1 0.1 1.0 11/12/12 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 05/13/13 <0.1 <0.1 <0.1 <0.1 0.118 J 0.1 1.0 11/11/13 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 05/12/14 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 11/11/14 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 02/23/15 05/12/15 <0.100 0.118 J <0.100 <0.100 <0.100 0.100 1.0 08/24/15 11/10/15 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 02/22/16 05/19/16 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 08/23/16 11/16/16 0.188 J <0.100 <0.100 <0.100 <0.100 0.100 1.0 02/22/17 05/30/17 <0.130 <0.130 <0.130 <0.130 <0.130 0.130 1.0 08/22/17 11/14/17 0.137 J <0.130 <0.130 0.136 J <0.130 0.130 1.0 02/18/18 05/14/18 <0.130 <0.130 <0.130 <0.130 <0.130 0.130 1.0 08/24/18 11/12/18 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 i 02/14/19 05/20/19 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 08/27/19 11/19/19 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 02/24/20 05/19/20 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 08/18/20 11/16/20 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 02/16/21 05/19/21 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 11/23/21 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 05/23/22 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 11/07/22 <0.30 <0.30 <0.30 <0.30 <0.30 0.30 4.0 05/02/23 <0.30 <0.30 <0.30 <0.30 <0.30 0.30 4.0 11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 1.0 MW-6R QA/QCMW-1 HISTORY OF CHEMICAL ANALYSIS MW-4 MW-5 MW-6 MW-7 MW-7R FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE INORGANIC CONSTITUENTS: TOTAL METALS Constituent Sample Date MDL MRL PROJECT: GROUNDWATER MONITORING PROGRAM FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-13 MW-14A MW-14B beryllium 04/17/90 MCL = 4 07/11/91 FBAC = 0.571 05/28/92 NCGQS = 4 (GWPS)06/30/93 11/04/94 <2 <2 <2 5 i 12/20/94 <2 <2 <2 4 02/02/95 <2 <2 <2 18 i 03/13/95 <2 <2 <2 40 t 11/15/95 <2 <2 <2 35 07/25/96 <2 <2 <2 99 J d 02/25/97 <2 <2 <2 <2 f 09/03/97 <2 <2 <2 13 05/04/98 <2 <2 <2 23 11/02/98 <2 <2 <2 31 B i 04/26/99 <2 <2 <2 22.6 11/22/99 <2 <2 <2 <2 05/23/00 <2 <2 <2 <2 <2 <2 <2 11/29/00 <2 <2 <2 <2 <2 <2 <2 06/05/01 <2 <2 <2 <2 <2 <2 <2 11/13/01 <2 <2 <2 <2 <2 <2 <2 i 06/04/02 <2 <2 <2 <2 <2 <2 <2 03/12/03 <2 <2 <2 <2 <2 <2 <2 06/18/03 <2 <2 <2 <2 <2 <2 <2 12/08/03 <2 <2 <2 <2 <2 <2 <2 06/22/04 <2 <2 <2 <2 <2 <2 <2 11/30/04 <2 <2 <2 <2 <2 <2 <2 06/01/05 <2 <2 <2 <2 <2 <2 <2 11/02/05 <2 <2 <2 <2 <2 <2 <2 05/22/06 <2 <2 <2 <2 <2 <2 <2 11/27/06 <2 <2 <2 <2 <2 <2 <2 06/12/07 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 1.1 0.2 1.0 12/12/07 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.0 i 03/06/08 0.2 1.0 06/12/08 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.0 11/05/08 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.0 05/19/09 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 0.08 1.0 11/18/09 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 06/21/10 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 11/18/10 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 05/23/11 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 11/15/11 <0.1 <0.1 <0.1 <0.1 <0.1 0.115 J <0.1 <0.1 <0.1 0.1 1.0 06/05/12 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 11/12/12 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 05/13/13 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0 11/11/13 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 05/12/14 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 11/11/14 <0.100 <0.100 <0.100 <0.200 <0.100 <0.100 <0.100 <0.100 <0.100 0.100/0.200 1.0 02/23/15 05/12/15 <0.100 <0.100 <0.100 <0.100 <0.100 0.168 J <0.100 <0.100 <0.100 0.100 1.0 08/24/15 11/10/15 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 02/22/16 05/19/16 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 08/23/16 11/16/16 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0 02/22/17 05/30/17 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 0.130 1.0 08/22/17 11/14/17 <0.130 <0.130 <0.130 0.182 J <0.130 <0.130 0.148 J 0.130 J <0.130 0.130 1.0 02/18/18 05/14/18 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 0.130 1.0 08/24/18 11/12/18 <0.160 <0.160 <0.160 <0.800 D <0.160 0.163 JB <0.160 <0.160 <0.160 0.160; 0.800 1; 5 i 02/14/19 05/20/19 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 08/27/19 11/19/19 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 02/24/20 05/19/20 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 08/18/20 11/16/20 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 02/16/21 05/19/21 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 11/23/21 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 05/23/22 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0 11/07/22 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 0.300 4.0 05/02/23 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 <0.30 0.300 4.0 11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0 MW-24MW-17 MW-20ConstituentSample Date MW-15 MW-21S MW-23 MRL QA/QCMW-21D CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-22 LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM INORGANIC CONSTITUENTS: TOTAL METALS MW-16 HISTORY OF CHEMICAL ANALYSIS MW-21D2 MDLMW-301 cadmium 04/17/90 <2 <2 <2 <2 <2 MCL = 5 07/11/91 <2 <2 <2 <2 <2 FBAC = 0.458 05/28/92 <2 <2 <2 <2 <2 <2 <2 <2 NCGQS = 2 (2L Std)06/30/93 <2 2.7 3.8 <2 <2 4.3 <2 2L Std = 1.75 (pre- Jan. 2010)11/04/94 <1 <1 1 B <1 <1 1 B cc,i,f 2L Std = 2 (Jan. 2010)12/20/94 <1 <1 1 B <1 <1 <1 i 02/02/95 <1 <1 <1 <1 <1 1 B i 03/13/95 <1 <1 1.1 B <1 <1 <1 1.2 B 3 B f,t 11/15/95 1.1 B 1.2 B 1.7 B 7 B <1 <1 1.3 B <1 ms,t 07/25/96 <1 <1 <1 <1 <1 <1 02/25/97 <1 <1 <1 <1 1.2 B 1.1 B <1 <1 i,f 09/03/97 <1 <1 <1 <1 <1 05/04/98 <1 <1 <1 <1 <1 <1 <1 4.4 B f,t 11/02/98 1.2 B <1 <1 1.5 B <1 f,t 04/26/99 <1 <1 <1 <1 <1 cc,i 11/22/99 <1 <1 <1 <1 <1 lcs,i 05/23/00 <1 <1 <1 1 B <1 <1 38 R <1 i,t,f 11/29/00 <1 <1 <1 <1 <1 i,q 06/05/01 <1 <1 <1 <1 <1 <1 1 11/13/01 <1 <1 <1 <1 <1 <1 <1 cc,i,t,f 06/04/02 <1 <1 <1 d,i,t,f 03/12/03 <1 <1 <1 <1 06/18/03 1 B <1 1 B <1 t 12/08/03 <1 <1 <1 06/22/04 <1 <1 <1 11/30/04 <1 <1 <1 06/01/05 <1 <1 <1 11/02/05 <1 <1 <1 05/22/06 <1 <1 <1 11/27/06 <1 <1 <1 06/12/07 0.6 J 6.7 <0.2 3.8 0.2 1 12/12/07 <0.2 0.98 JB <0.2 0.2 1 i 03/06/08 0.48 J 0.2 1 06/12/08 <0.2 <0.2 0.8 JB 0.2 JB 0.8 JB <0.2 0.2 1 t, i 11/05/08 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1 i 05/19/09 0.29 J 0.25 J 0.35 J 0.23 J 0.53 J 0.43 J 0.09 1 11/18/09 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 06/21/10 <0.36 <0.36 0.570 J <0.36 0.378 J <0.36 0.36 1 11/18/10 <0.36 <0.36 <0.36 <0.36 <0.36 0.52 J 0.36 1 05/23/11 <0.36 <0.36 0.567 J <0.36 0.435 J <0.36 0.36 1 11/15/11 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 06/05/12 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 11/12/12 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 05/13/13 <0.36 1.06 <0.36 <0.36 <0.36 0.36 1 11/11/13 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 05/12/14 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 11/11/14 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 02/23/15 05/12/15 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/24/15 11/10/15 0.433 J 0.594 J <0.360 <0.360 <0.360 0.360 1 02/22/16 05/19/16 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/23/16 11/16/16 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 02/22/17 05/30/17 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/22/17 11/14/17 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 02/18/18 05/14/18 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/24/18 11/12/18 <0.360 <0.360 <0.360 2.70 <0.360 0.360 1 02/14/19 05/20/19 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 verification 07/10/19 0.360 1 08/27/19 11/19/19 <0.360 <0.360 <0.360 <0.360 <0.360 0.36, 1.80 1; 5 02/24/20 05/19/20 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 08/18/20 11/16/20 <0.360 <0.360 <0.360 0.716 J <0.360 0.360 1.0 02/16/21 05/19/21 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 11/23/21 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 05/23/22 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 11/07/22 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 5.0 05/02/23 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 5.0 11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 1.0 MW-6RConstituentSample Date MW-1 MW-4 MW-5 MW-6 MW-7 MDL MRL HISTORY OF CHEMICAL ANALYSIS PROJECT: GROUNDWATER MONITORING PROGRAM LOCATION: CHAPEL HILL, NORTH CAROLINA FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE INORGANIC CONSTITUENTS: TOTAL METALS MW-13MW-7R MW-14B QA/QCMW-14A cadmium 04/17/90 <2 <2 MCL = 5 07/11/91 <2 4.5 FBAC = 0.458 05/28/92 <2 <2 <2 NCGQS = 2 (2L Std)06/30/93 3.3 2.4 <2 2L Std = 1.75 (pre- Jan. 2010)11/04/94 <1 2 B <1 2 B cc,i,f 2L Std = 2 (Jan. 2010)12/20/94 <1 <1 <1 <1 i 02/02/95 <1 <1 <1 <1 i 03/13/95 1.2 B 1.4 B 1.3 B <1 f,t 11/15/95 <1 <1 1 B <1 ms,t 07/25/96 <1 <1 <1 <1 02/25/97 <1 <1 <1 <1 i,f 09/03/97 <1 <1 <1 <1 05/04/98 6.2 B 4.0 B 1.0 B <1 f,t 11/02/98 <1 <1 1.2 B <1 f,t 04/26/99 <1 <1 <1 <1 cc,i 11/22/99 <1 <1 <1 <1 lcs,i 05/23/00 4 B <1 <1 <1 <1 <1 <1 i,t,f 11/29/00 <1 <1 <1 <1 <1 <1 <1 i,q 06/05/01 <1 <1 1 <1 <1 <1 2 11/13/01 1 B <1 <1 3 B <1 <1 <1 cc,i,t,f 06/04/02 <1 <1 8 B <1 <1 <1 <1 d,i,t,f 03/12/03 <1 <1 <1 <1 <1 <1 <1 06/18/03 1 B <1 <1 <1 <1 <1 <1 t 12/08/03 <1 <1 1.6 <1 <1 <1 <1 06/22/04 <1 <1 <1 <1 <1 <1 <1 11/30/04 <1 <1 <1 <1 <1 <1 <1 06/01/05 <1 <1 <1 <1 <1 <1 <1 11/02/05 <1 <1 <1 <1 <1 <1 <1 05/22/06 <1 <1 <1 <1 2 <1 <1 11/27/06 <1 <1 <1 <1 <1 <1 <1 06/12/07 0.9 J <0.2 <0.2 19.9 <0.2 0.6 J 0.7 J 0.7 J 0.2 1 12/12/07 <0.2 <0.2 0.2 JB <0.2 0.2 JB <0.2 <0.2 0.2 1 i 03/06/08 0.2 1 06/12/08 <0.2 0.2 JB 0.3 JB <0.2 <0.2 <0.2 <0.2 <0.2 0.3 JB 0.2 1 t, i 11/05/08 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.6 JB 0.2 1 i 05/19/09 0.1 J 0.22 J 0.2 J 1.75 0.1 J <0.09 0.16 J <0.09 0.16 J 0.09 1 11/18/09 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 06/21/10 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 11/18/10 <0.36 <0.36 <0.36 1.23 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 05/23/11 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 11/15/11 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 06/05/12 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 11/12/12 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 05/13/13 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1 11/11/13 <0.360 0.378 J <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 05/12/14 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 11/11/14 <0.360 <0.360 <0.360 <0.720 <0.360 <0.360 <0.360 <0.360 <0.360 0.360/0.720 1 02/23/15 05/12/15 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/24/15 11/10/15 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.390 J 0.360 1 02/22/16 05/19/16 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/23/16 11/16/16 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 02/22/17 05/30/17 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/22/17 11/14/17 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 02/18/18 05/14/18 <0.360 <0.360 <0.360 1.08 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 08/24/18 11/12/18 <0.360 <0.360 <0.360 5.36 D <0.360 <0.360 <0.360 <0.360 <0.360 0.36; 1.80 1; 5 02/14/19 05/20/19 <0.360 <0.360 <0.360 5.07 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1 verification 07/10/19 4.72 0.360 1 08/27/19 11/19/19 <0.360 4.38 JD <0.360 <0.360 <0.360 0.36, 1.80 1, 5 02/24/20 05/19/20 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 08/18/20 11/16/20 <0.360 4.45 <0.360 <0.360 <0.360 0.360 1.0 02/16/21 05/19/21 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 11/23/21 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 05/23/22 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0 11/07/22 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 5.0 05/02/23 0.66 J <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 5.0 11/20/23 <1.0 <1.0 <1.0 1.9 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0 Sample Date PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-21D MW-24MW-20ConstituentMW-15 MW-17 MW-22 QA/QCMW-16 MW-21SMW-21D2 MDL MRL LOCATION: CHAPEL HILL, NORTH CAROLINA MW-23 MW-301 chromium 04/17/90 <20 <20 <20 <20 <20 MCL = 100 07/11/91 <20 <20 <20 <20 <20 FBAC = 3.228 05/28/92 <20 <20 <20 <20 <20 <20 <20 <20 NCGQS = 10 (2L Std)06/30/93 <20 <20 <20 <20 <20 <20 <20 2L Std = 50 (pre- Jan. 2010)11/04/94 25 <10 24 <10 10.0 B <10 2L Std = 10 (Jan. 2010)12/20/94 <10 <10 48 <10 <10 <10 02/02/95 <10 <10 <10 <10 <10 <10 03/13/95 <10 <10 <10 <10 22.7 <10 <10 <10 11/15/95 <10 <10 12 <10 58 <10 <10 <10 07/25/96 13 B <10 <10 11 B <10 <10 02/25/97 <10 <10 <10 <10 93 B <10 <10 <10 09/03/97 <10 <10 <10 <10 <10 05/04/98 <10 <10 <10 <10 22.7 <10 <10 <10 11/02/98 <10 <10 <10 <10 <10 04/26/99 <10 <10 <10 <10 <10 11/22/99 <10 <10 <10 <10 <10 05/23/00 <10 <10 <10 <10 <10 <10 <10 <10 t,q 11/29/00 <10 <10 <10 <10 <10 i,f,q 06/05/01 <10 <10 <10 18 B <10 <10 <10 cc,t,f 11/13/01 <10 <10 <10 06/04/02 <10 <10 <10 03/12/03 <10 15 <10 <10 06/18/03 <10 <10 <10 <10 <10 12/08/03 <10 <10 <10 06/22/04 <10 <10 <10 11/30/04 <10 <10 <10 06/01/05 <10 <10 <10 11/02/05 <10 <10 <10 05/22/06 <10 <10 <10 11/27/06 <10 <10 <10 06/12/07 5.9 JB 33.5 6 JB <0.7 0.7 10 t,f 12/12/07 <0.7 8.3 J 1.4 JB 0.7 10 i 03/06/08 4.3 J 0.7 10 06/12/08 0.8 JB 0.7 JB 4.8 J <0.7 4.6 JB 1.3 JB 0.7 10 t 09/20/08 0.7 10 11/05/08 <0.7 28.6 2.4 JB 2.1 JB 5.6 JB <0.7 0.7 10 t, f 05/19/09 0.9 J 3.7 J <0.7 <0.7 1.9 J 2.7 J 0.7 10 11/18/09 <1 <1 <1 <1 <1 <1 1 10 i 06/21/10 4.74 J <1 3.54 J <1 <1 <1 1 10 11/18/10 2.9 J <1 1.33 J <1 <1 <1 1 10 05/23/11 1.99 J 6.1 J 1.63 J 1.53 J 2.39 J 4.44 J 1 10 11/15/11 <1 1.34 J <1 2.69 J 3.38 J 1 10 06/05/12 2.81 J 7.57 J 1.86 J 3.64 J 5.02 J 1 10 11/12/12 <1 9.18 J <1 1.72 J 2.53 J 1 10 05/13/13 <1.4 <1.4 <1.4 <1.4 <1.4 1.4 10 11/11/13 <1.40 <1.40 <1.40 3.94 J <1.40 1.40 10 05/12/14 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 11/11/14 <1.40 <1.40 <1.40 3.71 J 2.47 J 1.40 10 02/23/15 05/12/15 <1.40 <1.40 <1.40 2.54 J 2.39 J 1.40 10 08/24/15 11/10/15 <1.40 <1.40 <1.40 3.13 J <1.40 1.40 10 02/22/16 05/19/16 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 08/23/16 11/16/16 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 02/22/17 05/30/17 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 08/22/17 11/14/17 <1.40 <1.40 <1.40 1.75 J <1.40 1.40 10 02/18/18 05/14/18 <1.40 <1.40 <1.40 <1.40 1.56 J 1.40 10 08/24/18 11/12/18 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 02/14/19 05/20/19 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 08/27/19 11/19/19 <1.40 <1.40 1.85 J <1.40 1.83 J 1.40 10 02/24/20 05/19/20 <1.40 <1.40 1.41 J 5.49 J 5.32 J 1.40 10 08/18/20 11/16/20 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 3.96 J 1.40 10 02/16/21 05/19/21 <1.40 <1.40 <1.40 2.77 J 6.35 J 1.40 10 11/23/21 <1.40 2.19 J <1.40 4.29 J 6.33 J 1.40 10 05/23/22 <1.40 <1.40 <1.40 4.57 J 3.95 J 1.40 10 11/07/22 1.5 J <1.1 <1.1 <1.1 <1.1 1.1 10 05/02/23 <1.1 <1.1 <1.1 <1.1 <1.1 1.1 10 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 MW-6R MDLMW-7 MW-13 MRLMW-14A MW-14B QA/QCConstituentSample Date MW-1 MW-5 MW-6 HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS MW-7RMW-4 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM chromium 04/17/90 <20 <20 MCL = 100 07/11/91 <20 <20 FBAC = 3.228 05/28/92 <20 <20 <20 NCGQS = 10 (2L Std)06/30/93 <20 <20 <20 2L Std = 50 (pre- Jan. 2010)11/04/94 <10 33 <10 32 i 2L Std = 10 (Jan. 2010)12/20/94 <10 12 <10 16 02/02/95 <10 <10 <10 12 i 03/13/95 <10 <10 <10 <10 f,t 11/15/95 <10 <10 <10 20 f 07/25/96 <10 <10 17 B <10 f,t,ms 02/25/97 <10 <10 <10 <10 f 09/03/97 <10 <10 <10 <10 05/04/98 <10 <10 <10 <10 i,t 11/02/98 <10 <10 <10 <10 04/26/99 <10 <10 <10 <10 11/22/99 <10 <10 <10 <10 05/23/00 <10 <10 <10 10 B <10 <10 <10 t,q 11/29/00 <10 <10 <10 <10 <10 <10 <10 i,f,q 06/05/01 <10 <10 <10 <10 <10 <10 <10 cc,t,f 11/13/01 <10 <10 <10 <10 <10 <10 <10 06/04/02 <10 <10 <10 <10 <10 <10 <10 03/12/03 <10 <10 <10 <10 <10 <10 <10 06/18/03 13 <10 <10 <10 <10 <10 <10 12/08/03 <10 <10 <10 <10 <10 <10 <10 06/22/04 <10 14 <10 <10 <10 <10 <10 11/30/04 <10 <10 <10 <10 <10 <10 <10 06/01/05 <10 <10 <10 <10 <10 <10 <10 11/02/05 <10 <10 <10 <10 <10 <10 <10 05/22/06 <10 <10 <10 <10 <10 <10 <10 11/27/06 <10 <10 <10 <10 <10 <10 <10 06/12/07 10.8 <0.7 2.7 JB <0.7 1.9 JB 2.2 JB 2.2 JB 103 R 0.7 10 t,f 12/12/07 6.7 JB <0.7 1.9 JB <0.7 <0.7 <0.7 <0.7 0.7 10 i 03/06/08 0.7 10 06/12/08 6.7 J <0.7 1.6 JB <0.7 <0.7 <0.7 <0.7 <0.7 129 R 0.7 10 t 09/20/08 2.4 J 0.7 10 11/05/08 7.8 J <0.7 2.3 JB <0.7 <0.7 2.2 JB 1.8 JB <0.7 1.2 JB 0.7 10 t, f 05/19/09 7 J 1.3 J 2.2 J <0.7 1.6 J 5.1 J 1.4 J 1.2 J 1.3 J 0.7 10 11/18/09 <1 2.87 JB <1 <1 1.37 JB 7.49 JB <1 2.68 JB 1.81 JB 1 10 i 06/21/10 <1 <1 <1 <1 1.28 J 9.64 J <1 3.44 J 2.83 J 1 10 11/18/10 <1 <1 <1 <1 <1 1.26 J <1 1.6 J 3.67 J 1 10 05/23/11 8.29 J <1 2.48 J <1 1.44 J 4.62 J 1.12 J <1 <1 1 10 11/15/11 5.83 J <1 2.33 J 1.81 J 3.82 J 2.77 J <1 9.8 J <1 1 10 06/05/12 8.15 J 1.39 J 3.21 J <1 4.32 J 2.43 J 2.03 J 35.9 3.55 J 1 10 11/12/12 3.85 J <1 1.14 J <1 21.6 17.8 1.34 J 60.1 4.13 J 1 10 05/13/13 <1.4 <1.4 <1.4 <1.4 8.48 J 88.8 <1.4 65.3 4.34 J 1.4 10 11/11/13 3.74 J <1.40 1.85 J <1.40 27.0 77.7 <1.40 98.9 7.72 J 1.40 10 05/12/14 2.05 J 2.20 J 1.40 J <1.40 22.3 88.6 <1.40 118 <1.40 1.40 10 11/11/14 4.29 J <1.40 1.69 J <2.80 49.0 64.6 <1.40 83.9 20.5 1.40/2.80 10 02/23/15 05/12/15 4.04 J 3.54 JB 2.57 JB <1.40 19.3 115 <1.40 84.1 2.31 J 1.40 10 i 08/24/15 11/10/15 3.41 J <1.40 <1.40 <1.40 7.84 J 94.1 <1.40 57.7 3.83 J 1.40 10 02/22/16 05/19/16 <1.40 <1.40 <1.40 <1.40 13.9 54.1 <1.40 61.2 3.12 J 1.40 10 08/23/16 11/16/16 <1.40 <1.40 <1.40 <1.40 14.8 61.4 <1.40 53.8 11.8 1.40 10 02/22/17 05/30/17 <1.40 <1.40 <1.40 <1.40 16.0 56.5 <1.40 45.1 3.48 J 1.40 10 08/22/17 11/14/17 1.65 J <1.40 <1.40 <1.40 30.6 31.8 <1.40 28.3 8.01 J 1.40 10 02/18/18 05/14/18 1.78 J <1.40 <1.40 <1.40 12.4 56.8 <1.40 25.3 1.63 J 1.40 10 08/24/18 11/12/18 1.55 J <1.40 <1.40 <1.40 10.9 62.0 <1.40 25.1 3.81 J 1.40 10 02/14/19 05/20/19 <1.40 <1.40 <1.40 <1.40 11.5 36.1 <1.40 39.9 4.24 J 1.40 10 08/27/19 11/19/19 <1.40 <1.40 <1.40 <1.40 49.8 25.1 <1.40 24.1 5.26 J 1.40 10 02/24/20 05/19/20 5.97 J <1.40 1.52 J <1.40 8.18 J 39.1 <1.40 22.7 2.57 J 1.40 10 08/18/20 11/16/20 2.96 J <1.40 <1.40 <1.40 6.44 J 34.5 <1.40 17.7 3.40 J 1.40 10 02/16/21 05/19/21 6.31 J <1.40 2.17 J <1.40 7.32 J 32.2 <1.40 25.4 1.95 J 1.40 10 11/23/21 6.66 J <1.40 6.63 J <1.40 8.62 J 20.1 5.09 J 23.5 2.45 J 1.40 10 05/23/22 5.08 J <1.40 <1.40 <1.40 6.97 J 26.6 <1.40 17.5 1.87 J 1.40 10 11/07/22 <1.1 <1.1 <1.1 <1.1 2.8 J 12 <1.1 11 2.2 J 1.10 10 05/02/23 3.6 J <1.1 <1.1 <1.1 <1.1 12 23 <1.1 14 2.2 J <1.1 1.10 10 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 6.9 14.9 <5.0 9.0 <5.0 <5.0 5.0 MW-16 MW-17 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS MW-22Sample Date MW-15 QA/QCConstituent CLIENT: THE COUNTY OF ORANGE LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MW-23 MW-24 MDL MRLMW-20 MW-21D MW-21SMW-21D2 MW-301 cobalt 04/17/90 MCL = ♦07/11/91 FBAC = 2.15 05/28/92 NCGQS = 1 (GWPS)06/30/93 GWPS = 70 (pre-Oct. 2010)11/04/94 17 <4 <4 22 16 23 i GWPS = 1 (Oct. 2010)12/20/94 <10 <10 <10 23 104 22 02/02/95 <10 <10 <10 <10 144 25 f 03/13/95 <10 <10 100 <10 <10 <10 <10 21 11/15/95 <10 <10 91 J <10 17 J <10 12 J 24 J ms 07/25/96 <10 <10 <10 <10 91 B 16 B f,ms 02/25/97 <10 <10 140 <10 27 <10 102 27 i,f,t 09/03/97 <10 <10 20 <10 27 i 05/04/98 <10 <10 132 <10 <10 <10 78 24 11/02/98 93.2 <10 40 102 18.9 i 04/26/99 <10 <10 <10 21 25 i 11/22/99 <10 <10 <10 50 J 17 J d,i,t,f,q 05/23/00 <10 <10 212 <10 <10 <10 16 B 42 i,t,f 11/29/00 <10 <10 17 J 40 J <10 f,q 06/05/01 <10 <10 278 <10 11 B <10 28 B i,t,f 11/13/01 <10 <10 28 t 06/04/02 <10 <10 34 i 03/12/03 <10 <10 <10 26 06/18/03 <10 <10 <10 <10 27 12/08/03 <10 31 28 06/22/04 <10 <10 31 11/30/04 <10 12 28 06/01/05 <10 15 27 11/02/05 <10 16 28 05/22/06 <10 <10 22 11/27/06 <10 29 23 06/12/07 0.9 J 19.1 11.2 27.2 0.7 10 12/12/07 <0.7 27.4 27.6 0.7 10 03/06/08 2.2 J 0.7 10 06/12/08 <0.7 241 13.3 <0.7 26.2 24.8 0.7 10 11/05/08 <0.7 237 2 J 1.6 J 31.5 26.9 0.7 10 05/19/09 <0.6 173 1.7 J 0.7 J 2.3 J 34.3 0.6 10 11/18/09 <1.1 186 1.47 J <1.1 17.5 29.3 1.1 10 06/21/10 3.37 J 134 5.33 J <1.1 9.25 J 23 1.1 10 11/18/10 <1.1 177 2.24 J <1.1 14.1 23 1.1 10 05/23/11 <1.1 204 2.42 J <1.1 9.23 J 31.2 1.1 10 11/15/11 <1.1 2.03 J <1.1 13.5 31 1.1 10 06/05/12 1.61 J 1.69 J <1.1 5.18 J 31.1 1.1 10 11/12/12 <1.1 <1.1 1.34 J 13.2 31 1.1 10 05/13/13 <1.1 1.36 J 1.19 J 15.7 37.9 1.1 10 i 11/11/13 <1.10 2.58 J 3.56 J 46.7 29.7 1.10 10 05/12/14 <1.10 1.90 J <1.10 4.11 J 53.8 1.10 10 11/11/14 <1.10 2.86 J 1.26 J 46.2 30.3 1.10 10 02/23/15 05/12/15 <1.10 3.64 J <1.10 8.96 J 57.1 1.10 10 08/24/15 11/10/15 <1.10 3.26 J <1.10 43.9 30.8 1.10 10 02/22/16 05/19/16 <1.10 1.85 J 1.11 J 13.7 58.3 1.10 10 08/23/16 11/16/16 <1.10 <1.10 2.53 J 40.5 37.8 1.10 10 02/22/17 05/30/17 <1.10 1.23 J 1.42 J 5.42 J 48.3 1.10 10 08/22/17 11/14/17 <1.10 1.27 J <1.10 27.9 34.2 1.10 10 02/18/18 05/14/18 <1.10 1.72 JB 2.67 JB 59.1 5.89 JB 1.10 10 i 08/24/18 11/12/18 <1.40 1.57 JB 1.89 JB 57.5 13.5 1.40 10 i 02/14/19 05/20/19 <1.40 <1.40 1.91 J 78.8 18.9 1.40 10 08/27/19 11/19/19 <1.40 <1.40 <1.40 73.3 9.48 J 1.4, 7.0 10,50 02/24/20 05/19/20 <1.40 <1.40 2.32 J 76 13.7 1.40 10 08/18/20 11/16/20 <1.40 <1.40 1.85 J 48.6 24.3 1.40 10 02/16/21 05/19/21 <1.40 <1.40 2.75 J 64.3 14.8 1.40 10 11/23/21 <1.40 <1.40 1.67 J 52.3 24.7 1.40 10 05/23/22 <1.40 <1.40 2.92 J 52.1 12.8 1.40 10 11/07/22 <1.40 <1.40 2.9 J 36 23 1.40 10 05/02/23 <1.40 <1.40 1.7 J 4.2 J 59 1.40 10 11/20/23 <5.0 <5.0 <5.0 7.5 17.1 5.0 MW-6RConstituent MW-14A MW-14B INORGANIC CONSTITUENTS: TOTAL METALS CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MW-7Sample Date MW-1 MW-4 MW-5 MW-6 MW-13MW-7R MDL MRL QA/QC HISTORY OF CHEMICAL ANALYSIS cobalt 04/17/90 MCL = ♦07/11/91 FBAC = 2.15 05/28/92 NCGQS = 1 (GWPS)06/30/93 GWPS = 70 (pre-Oct. 2010)11/04/94 <4 <4 <4 60 i GWPS = 1 (Oct. 2010)12/20/94 <10 <10 <10 38 02/02/95 <10 <10 <10 84 f 03/13/95 <10 <10 <10 109 11/15/95 <10 <10 <10 70 J ms 07/25/96 <10 <10 <10 69 J f,ms 02/25/97 <10 <10 <10 80 i,f,t 09/03/97 <10 <10 <10 63 i 05/04/98 12.9 <10 <10 70 11/02/98 14.4 <10 <10 46.7 i 04/26/99 16 B <10 <10 63 i 11/22/99 24 J <10 <10 72 J d,i,t,f,q 05/23/00 21 <10 <10 55 <10 <10 <10 i,t,f 11/29/00 22 J <10 <10 67 J <10 <10 <10 f,q 06/05/01 22 B <10 <10 56 <10 <10 <10 i,t,f 11/13/01 21 <10 <10 52 <10 <10 <10 t 06/04/02 27 <10 <10 42 <10 <10 <10 i 03/12/03 31 <10 <10 71 <10 <10 <10 06/18/03 22 <10 <10 53 <10 <10 <10 12/08/03 26 <10 <10 38 <10 <10 <10 06/22/04 28 <10 <10 24 <10 <10 <10 11/30/04 28 <10 <10 36 <10 <10 <10 06/01/05 25 <10 <10 36 <10 <10 <10 11/02/05 27 <10 <10 16 <10 <10 <10 05/22/06 22 <10 <10 17 <10 <10 <10 11/27/06 22 <10 <10 27 <10 <10 <10 06/12/07 31.4 3.1 J 2 J 19.2 <0.7 0.8 J 0.7 J 43.8 0.7 10 12/12/07 20 2.5 J 2.6 J 16.8 <0.7 <0.7 <0.7 0.7 10 03/06/08 0.7 10 06/12/08 39.8 2.1 J 2.2 J 18.4 <0.7 <0.7 <0.7 <0.7 61.6 0.7 10 11/05/08 37.2 2 J 2.9 J 22.4 <0.7 <0.7 1.8 J <0.7 2.8 J 0.7 10 05/19/09 37.8 3.5 J 3.3 J 58.7 <0.6 0.8 J <0.6 <0.6 0.7 J 0.6 10 11/18/09 28 1.82 J 3.31 J 19.8 <1.1 1.85 J <1.1 <1.1 2.04 J 1.1 10 06/21/10 23 1.54 J 2.39 J 7.61 J <1.1 2.12 J <1.1 <1.1 2.90 J 1.1 10 11/18/10 28.6 2.36 J 2.59 J 7.65 J <1.1 <1.1 <1.1 <1.1 3.89 J 1.1 10 05/23/11 44.6 2.45 J 3.65 J 13.7 <1.1 1.34 J <1.1 <1.1 1.82 J 1.1 10 11/15/11 31.3 2.65 J 3.71 J 34.1 <1.1 <1.1 <1.1 <1.1 2.63 J 1.1 10 06/05/12 40.7 3.29 J 3.83 J 16.3 <1.1 <1.1 <1.1 <1.1 4.88 J 1.1 10 11/12/12 36.8 2.54 J 3.1 J 19.9 JD <1.1 <1.1 <1.1 <1.1 6.05 J 1.1 10 05/13/13 26.5 2.93 JB 2.63 JB 11.8 B <1.1 <1.1 <1.1 <1.1 3.07 J 1.1 10 i 11/11/13 30.1 2.96 J 3.60 J 11.1 <1.10 <1.10 <1.10 <1.10 1.59 J 1.10 10 05/12/14 18.1 3.70 J 4.00 J 15.6 <1.10 <1.10 <1.10 <1.10 1.32 J 1.10 10 11/11/14 36.5 2.74 J 3.44 J 14.9 JD <1.10 <1.10 <1.10 <1.10 <1.10 1.10 10 02/23/15 05/12/15 29.9 4.67 J 3.82 J 12.8 <1.10 1.21 J <1.10 <1.10 <1.10 1.10 10 08/24/15 11/10/15 27.3 3.17 J 3.61 J 15.7 <1.10 <1.10 <1.10 <1.10 <1.10 1.10 10 02/22/16 05/19/16 24.3 3.88 J 2.91 J 12.1 JD <1.10 <1.10 <1.10 <1.10 <1.10 1.10 10 08/23/16 11/16/16 29.1 2.90 J 2.89 J 11.2 <1.10 <1.10 <1.10 <1.10 <1.10 1.10 10 02/22/17 05/30/17 19.3 3.41 J 2.41 J 9.05 J <1.10 <1.10 <1.10 <1.10 <1.10 1.10 10 08/22/17 11/14/17 27.7 1.76 J 2.59 J 9.30 J <1.10 <1.10 <1.10 <1.10 <1.10 1.10 10 02/18/18 05/14/18 23.6 3.94 JB 3.11 JB 10.9 <1.10 1.24 JB <1.10 <1.10 1.39 JB 1.10 10 i 08/24/18 11/12/18 17.6 4.27 JB 3.49 JB 30.8 JD <1.40 1.42 JB <1.40 <1.40 <1.40 1.4; 7 10; 50 i 02/14/19 05/20/19 18.2 6.38 J 2.97 J 9.23 J <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 08/27/19 11/19/19 30.3 3.30 J 1.86 J 12.0 JD <1.40 <1.40 <1.40 <1.40 <1.40 1.4, 7.0 10,50 02/24/20 05/19/20 22.6 4.38 J 2.82 J 12.2 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 08/18/20 11/16/20 15.9 2.17 J <1.40 35.8 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 02/16/21 05/19/21 22.8 5.33 J 3.23 J 8.78 J <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 11/23/21 22.2 2.33 J 2.73 J 10.9 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 05/23/22 22.5 3.84 J 1.74 J 19.8 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 11/07/22 23 2.9 J 2.4 J 6.5 J <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 05/02/23 21 3.8 J 2.7 J 12 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 11/20/23 14.8 <5.0 <5.0 <50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 MW-22Sample Date MW-15 MW-16 MW-17 MW-21D MW-21SMW-20 MW-23 MRLMW-24 QA/QC CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MDLConstituentMW-21D2 MW-301 copper 04/17/90 <20 <20 <20 <20 <20 MCL = 1300 07/11/91 <20 <20 <20 <20 <20 FBAC = 7.807 05/28/92 <20 <20 35 <20 <20 <20 <20 <20 NCGQS = 1,000 (2L Std)06/30/93 <20 <20 <20 <20 <20 22 20 11/04/94 <200 <200 <200 <200 <200 <200 i,sd 12/20/94 <200 <200 <200 <200 <200 <200 02/02/95 <200 <200 <200 <200 <200 <200 03/13/95 <200 <200 <200 <200 <200 <200 <200 <200 11/15/95 <200 <200 211 <200 <200 <200 <200 <200 07/25/96 <200 <200 <200 <200 <200 <200 i,t,f 02/25/97 <200 <200 <200 <200 <200 <200 <200 <200 09/03/97 <200 <200 <200 <200 <200 05/04/98 <200 <200 <200 <200 <200 <200 <200 <200 11/02/98 <200 <200 <200 <200 <200 04/26/99 <200 <200 <200 <200 <200 i 11/22/99 <200 <200 <200 <200 <200 05/23/00 <200 <200 <200 <200 <200 <200 <200 <200 11/29/00 <200 <200 <200 <200 <200 i,f 06/05/01 <200 <200 <200 <200 <200 <200 <200 i,md 11/13/01 <200 <200 <200 i,f 06/04/02 <200 <200 <200 03/12/03 <200 <200 <200 <200 06/18/03 <200 <200 <200 <200 <200 12/08/03 <200 <200 <200 06/22/04 <200 <200 <200 11/30/04 <200 <200 <200 06/01/05 <200 <200 <200 11/02/05 <200 <200 <200 05/22/06 <200 <200 <200 11/27/06 <200 <200 <200 06/12/07 <2 333 18.4 <2 2 10 t,f 12/12/07 2.6 JB 24 <2 2 10 t,f 03/06/08 18.9 2 10 06/12/08 <2 14.8 B 11.1 2.9 JB 11.2 B 4.2 JB 2 10 t 11/05/08 <2 2.2 JB 3.5 JB <2 26.8 B <2 2 10 f, i 05/19/09 2.76 J 7.39 J <0.81 <0.81 13.5 <0.81 0.81 10 11/18/09 2.03 J 13.6 <1.6 <1.6 12.5 <1.6 1.6 10 06/21/10 26.5 3.8 J 7.03 J <1.6 32.8 <1.6 1.6 10 11/18/10 7.7 J 3.6 J <1.6 <1.6 17.4 <1.6 1.6 10 05/23/11 8.77 J 4.72 J <1.6 <1.6 23.9 <1.6 1.6 10 11/15/11 2.92 J <1.6 <1.6 19.3 <1.6 1.6 10 06/05/12 10.6 2.78 J <1.6 21.1 <1.6 1.6 10 11/12/12 <1.6 2.1 J <1.6 15.6 <1.6 1.6 10 05/13/13 <1.6 <1.6 <1.6 15 <1.6 1.6 10 11/11/13 <1.60 <1.60 <1.60 19.5 <1.60 1.60 10 05/12/14 <1.60 <1.60 <1.60 21.3 <1.60 1.60 10 11/11/14 <1.60 <1.60 <1.60 17.5 <1.60 1.60 10 02/23/15 05/12/15 <1.60 <1.60 <1.60 17.4 <1.60 1.60 10 08/24/15 11/10/15 <1.60 <1.60 <1.60 13.9 <1.60 1.60 10 02/22/16 05/19/16 <1.60 <1.60 <1.60 13.1 <1.60 1.60 10 08/23/16 11/16/16 <1.60 <1.60 <1.60 15.3 <1.60 1.60 10 02/22/17 05/30/17 <1.60 <1.60 <1.60 18.1 <1.60 1.60 10 08/22/17 11/14/17 2.86 J 2.06 J 3.19 J 15.7 <1.60 1.60 10 02/18/18 05/14/18 <1.60 <1.60 <1.60 <1.60 14.7 1.60 10 08/24/18 11/12/18 <1.60 <1.60 <1.60 <1.60 61.4 1.60 10 02/14/19 05/20/19 <1.60 <1.60 <1.60 <1.60 14.0 1.60 10 08/27/19 11/19/19 <1.60 <1.60 1.75 J <1.60 16.1 1.60 10 02/24/20 05/19/20 <1.60 <1.60 <1.60 3.78 J 16.2 1.60 10 08/18/20 11/16/20 <1.60 <1.60 <1.60 <1.60 <1.60 6.02 J 1.60 10 02/16/21 05/19/21 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 11/23/21 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 05/23/22 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 11/07/22 <3.2 <3.2 <3.2 <3.2 12 J 3.2 20 05/02/23 <3.2 <3.2 <3.2 11 J <3.2 3.2 20 11/20/23 <5.0 <5.0 <5.0 11.3 <5.0 5.0 MW-6R MW-7R MDL MRLMW-7 MW-13 CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS MW-14A MW-14B QA/QC INORGANIC CONSTITUENTS: TOTAL METALS MW-5 MW-6ConstituentSample Date MW-1 MW-4 copper 04/17/90 <20 <20 MCL = 1300 07/11/91 <20 <20 FBAC = 7.807 05/28/92 <20 <20 <20 NCGQS = 1,000 (2L Std)06/30/93 <20 29 <20 11/04/94 <200 <200 <200 <200 i,sd 12/20/94 <200 <200 <200 <200 02/02/95 <200 <200 <200 <200 03/13/95 <200 <200 <200 <200 11/15/95 <200 <200 <200 <200 07/25/96 <200 <200 <200 <200 i,t,f 02/25/97 <200 <200 <200 <200 09/03/97 <200 <200 <200 <200 05/04/98 <200 <200 <200 <200 11/02/98 <200 <200 <200 <200 04/26/99 <200 <200 <200 <200 i 11/22/99 <200 <200 <200 <200 05/23/00 <200 <200 <200 <200 <200 <200 <200 11/29/00 <200 <200 <200 <200 <200 <200 <200 i,f 06/05/01 <200 <200 <200 <200 <200 <200 <200 i,md 11/13/01 <200 <200 <200 <200 <200 <200 <200 i,f 06/04/02 <200 <200 <200 <200 <200 <200 <200 03/12/03 <200 <200 <200 <200 <200 <200 <200 06/18/03 <200 <200 <200 <200 <200 <200 <200 12/08/03 <200 <200 <200 <200 <200 <200 <200 06/22/04 <200 <200 <200 <200 <200 <200 <200 11/30/04 <200 <200 <200 <200 <200 <200 <200 06/01/05 <200 <200 <200 <200 <200 <200 <200 11/02/05 <200 <200 <200 <200 <200 <200 <200 05/22/06 <200 <200 <200 <200 <200 <200 <200 11/27/06 <200 <200 <200 <200 <200 <200 <200 06/12/07 3.2 JB 2.3 JB 4.2 JB <2 3.5 JB 4.7 JB 3.1 JB 118 2 10 t,f 12/12/07 2.2 JB 3.5 JB 4.5 JB <2 3.7 JB 3.2 JB <2 2 10 t,f 03/06/08 2 10 06/12/08 2.5 JB 2 JB 2.3 JB <2 <2 <2 <2 <2 334 2 10 t 11/05/08 <2 <2 <2 <2 <2 <2 <2 <2 2.6 JB 2 10 f, i 05/19/09 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 <0.81 0.81 10 11/18/09 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 1.6 10 06/21/10 <1.6 <1.6 <1.6 <1.6 <1.6 5.54 J <1.6 1.87 J <1.6 1.6 10 11/18/10 <1.6 <1.6 <1.6 6.88 J <1.6 <1.6 <1.6 <1.6 1.69 J 1.6 10 05/23/11 <1.6 <1.6 1.89 J <1.6 <1.6 2.75 J <1.6 1.84 J <1.6 1.6 10 11/15/11 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 1.6 10 06/05/12 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 1.6 10 11/12/12 <1.6 <1.6 <1.6 <1.6 3.22 J <1.6 <1.6 <1.6 <1.6 1.6 10 05/13/13 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 <1.6 1.6 10 11/11/13 <1.60 4.80 J <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 05/12/14 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 11/11/14 <1.60 <1.60 1.70 J <3.20 <1.60 <1.60 <1.60 <1.60 <1.60 1.60/3.20 10 02/23/15 05/12/15 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 08/24/15 11/10/15 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 02/22/16 05/19/16 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 08/23/16 11/16/16 <1.60 <1.60 <1.60 6.95 J <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 02/22/17 05/30/17 <1.60 <1.60 1.66 J <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 08/22/17 11/14/17 <1.60 2.23 J 2.75 J <1.60 2.15 J 1.81 J <1.60 <1.60 <1.60 1.60 10 02/18/18 05/14/18 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 08/24/18 11/12/18 <1.60 <1.60 <1.60 <8.00 D <1.60 <1.60 <1.60 <1.60 <1.60 1.6; 8.00 10; 50 02/14/19 05/20/19 <1.60 <1.60 <1.60 <1.60 <1.60 1.93 J <1.60 <1.60 <1.60 1.60 10 08/27/19 11/19/19 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 02/24/20 05/19/20 1.68 J 1.79 J <1.60 8.47 J <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 08/18/20 11/16/20 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 02/16/21 05/19/21 <1.60 2.96 J <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 11/23/21 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 05/23/22 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10 11/07/22 <3.2 <3.2 <3.2 <3.2 <3.2 <3.2 <3.2 <3.2 <3.2 3.2 20 05/02/23 50 <3.2 <3.2 <3.2 <3.2 17 J <3.2 <3.2 <3.2 <3.2 <3.2 3.2 20 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 7.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 MRL CLIENT: THE COUNTY OF ORANGE MW-22Sample Date MW-15 MW-16 MDLMW-24 HISTORY OF CHEMICAL ANALYSIS MW-17 QA/QCMW-23 INORGANIC CONSTITUENTS: TOTAL METALS MW-20 MW-21D MW-21SConstituent PROJECT: GROUNDWATER MONITORING PROGRAM FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA MW-21D2 MW-301 iron 06/13/07 156000 MCL = ♦12/12/07 284 J FBAC = 9778 06/11/08 428 24900 NCGQS = 300 (2L Std)11/06/08 196 JB 3800 05/20/09 1150 3640 11/19/09 664 12500 06/23/10 10900 8500 11/17/10 3380 50500 05/24/11 3040 23900 11/17/11 1110 06/05/12 5080 11/14/12 464 05/13/13 383 11/12/13 <22.0 05/14/14 91.9 J 11/11/14 48.3 J 05/13/15 83.1 J 11/10/15 151 J 05/18/16 <22.0 11/15/16 <22.0 05/30/17 32.4 J 11/14/17 105 J 05/14/18 101 J 22.0 300 11/12/18 147 22.0 50 05/20/19 <22.0 22.0 50 11/19/19 76.2 22.0 50 05/19/20 187 22.0 50 08/18/20 11/16/20 92.7 22.0 50 05/19/21 261 22.0 50 11/23/21 88 22.0 50 05/23/22 50.8 22.0 50 11/07/22 05/02/23 96 J 20 100 11/20/23 106 50 CLIENT: THE COUNTY OF ORANGE INORGANIC CONSTITUENTS: TOTAL METALS FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS Constituent Sample Date MW-14B MDL MRL QA/QCMW-1 MW-4 MW-5 MW-6 MW-6R MW-7 MW-7R MW-13 MW-14A iron 06/13/07 MCL = ♦12/12/07 FBAC = 9778 06/11/08 NCGQS = 300 (2L Std)11/06/08 05/20/09 11/19/09 06/23/10 11/17/10 05/24/11 11/17/11 06/05/12 11/14/12 05/13/13 11/12/13 05/14/14 11/11/14 05/13/15 11/10/15 05/18/16 11/15/16 05/30/17 11/14/17 05/14/18 11/12/18 05/20/19 11/19/19 05/19/20 08/18/20 <0.740 <0.740 <0.740 <0.740 0.740 2 11/16/20 05/19/21 11/23/21 05/23/22 11/07/22 05/02/23 11/20/23 MW-22 MW-23 MW-24 MDL MRL QA/QC INORGANIC CONSTITUENTS: TOTAL METALS Constituent Sample Date FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS MW-15 MW-16 MW-17 MW-20 MW-21D MW-21S CLIENT: THE COUNTY OF ORANGE MW-21D2 MW-301 lead 04/17/90 <5 <5 <5 <5 <5 MCL = 15 07/11/91 <5 7.3 <5 <5 <5 FBAC = 10 05/28/92 <10 <10 18.3 <10 <10 <10 11.2 <10 NCGQS = 15 (2L Std)06/30/93 <5 <5 54 30 <5 5.6 5.3 11/04/94 <10 <10 <10 <10 <10 <10 cc,i 12/20/94 <10 <10 11 B <10 <10 <10 f 02/02/95 13 B <10 <10 <10 <10 <10 i 03/13/95 <10 <10 40 55 <10 <10 <10 14 B t,f 11/15/95 <10 <10 54 J 36 J 15 J <10 <10 <10 ms,i,f 07/25/96 <10 <10 18 J <10 <10 <10 f,ms 02/25/97 <10 <10 16 B 63 B 46 B <10 10 B <10 i,f,t,ms 09/03/97 <10 <10 <10 <10 <10 i 05/04/98 24 B <10 37 43 21 B <10 10 B <10 f,t 11/02/98 <10 <10 <10 <10 <10 04/26/99 <10 <10 <10 <10 <10 11/22/99 <10 <10 <10 <10 <10 cc,i,q 05/23/00 <10 <10 <10 <10 <10 <10 <10 <10 t 11/29/00 <10 <10 <10 <10 <10 q 06/05/01 <10 <10 <10 16 <10 <10 <10 11/13/01 <10 <10 <10 06/04/02 <10 <10 <10 t 03/12/03 <10 <10 <10 <10 06/18/03 <10 <10 <10 <10 <10 12/08/03 <10 <10 <10 06/22/04 <10 <10 <10 11/30/04 <10 <10 <10 06/01/05 <10 <10 <10 11/02/05 <10 <10 <10 05/22/06 <10 <10 <10 11/27/06 <10 <10 <10 06/12/07 6.6 JB 19 <2 <2 2 10 t,f 12/12/07 <2 4.2 J <2 2 10 03/06/08 <2 2 10 06/12/08 <2 8.5 J 17.2 <2 2.8 J 5.2 J 2 10 11/05/08 <2 3.9 J 4.7 JB <2 5.6 JB <2 2 10 i 05/19/09 <1.6 3.3 J 2.4 J <1.6 <1.6 5.8 J 1.6 10 11/18/09 <1.9 5.31 J 1.94 J <1.9 <1.9 5.5 J 1.9 10 06/21/10 3.87 J <1.9 14.6 <1.9 <1.9 3.27 J 1.9 10 11/18/10 1.98 J 3.26 J <1.9 <1.9 2.13 J 3.05 J 1.9 10 05/23/11 <1.9 4.62 J <1.9 <1.9 <1.9 4.71 J 1.9 10 11/15/11 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 06/05/12 <1.9 <1.9 <1.9 <1.9 3 J 1.9 10 11/12/12 2.36 J <1.9 <1.9 <1.9 3.94 J 1.9 10 05/13/13 <2.1 <2.1 <2.1 <2.1 <2.1 2.1 10 11/11/13 <2.10 <2.10 <2.10 <2.10 3.24 J 2.10 10 05/12/14 <2.10 <2.10 <2.10 <2.10 2.51 J 2.10 10 11/11/14 <2.10 <2.10 <2.10 <2.10 <2.10 2.10 10 02/23/15 05/12/15 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/24/15 11/10/15 <3.10 3.74 J <3.10 <3.10 3.44 J 3.10 10 02/22/16 05/19/16 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/23/16 11/16/16 <3.10 <3.10 <3.10 <3.10 4.78 J 3.10 10 02/22/17 05/30/17 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/22/17 11/14/17 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/18/18 05/14/18 <3.10 <3.10 <3.10 4.67 J <3.10 3.10 10FBAC = MRL (05-29-18)08/24/18 11/12/18 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/14/19 05/20/19 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/27/19 11/19/19 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/24/20 05/19/20 <3.10 <3.10 <3.10 3.57 J <3.10 3.10 10 08/18/20 11/16/20 <3.10 <3.10 <3.10 7.23 J <3.10 3.10 10 02/16/21 05/19/21 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 11/23/21 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 05/23/22 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 11/07/22 <6.6 <6.6 <6.6 <6.6 <6.6 6.60 10 05/02/23 <6.6 <6.6 <6.6 <6.6 <6.6 6.60 10 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 MW-6R MDL MRL QA/QCMW-14B LOCATION: CHAPEL HILL, NORTH CAROLINA MW-13 MW-14AMW-7R HISTORY OF CHEMICAL ANALYSIS FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE PROJECT: GROUNDWATER MONITORING PROGRAM INORGANIC CONSTITUENTS: TOTAL METALS Constituent MW-6 MW-7Sample Date MW-1 MW-4 MW-5 lead 04/17/90 <5 <5 MCL = 15 07/11/91 <5 <5 FBAC = 10 05/28/92 <10 <10 <10 NCGQS = 15 (2L Std)06/30/93 <5 <5 <5 11/04/94 <10 <10 <10 <10 cc,i 12/20/94 <10 <10 <10 <10 f 02/02/95 <10 <10 <10 <10 i 03/13/95 19 B <10 <10 <10 t,f 11/15/95 <10 <10 <10 <10 ms,i,f 07/25/96 <10 <10 <10 <10 f,ms 02/25/97 <10 <10 <10 <10 i,f,t,ms 09/03/97 <10 <10 <10 <10 i 05/04/98 <10 <10 <10 <10 f,t 11/02/98 <10 <10 <10 <10 04/26/99 <10 <10 <10 <10 11/22/99 <10 <10 <10 <10 cc,i,q 05/23/00 <10 <10 <10 <10 <10 <10 <10 t 11/29/00 <10 <10 <10 <10 <10 <10 <10 q 06/05/01 <10 <10 <10 <10 <10 <10 <10 11/13/01 <10 <10 <10 <10 <10 <10 <10 06/04/02 <10 <10 <10 <10 <10 <10 <10 t 03/12/03 <10 <10 <10 <10 <10 <10 <10 06/18/03 <10 <10 <10 <10 <10 <10 <10 12/08/03 <10 <10 <10 <10 <10 <10 <10 06/22/04 <10 <10 <10 <10 <10 <10 <10 11/30/04 <10 <10 <10 <10 <10 <10 <10 06/01/05 <10 <10 <10 <10 <10 <10 <10 11/02/05 <10 <10 <10 <10 <10 <10 <10 05/22/06 <10 <10 <10 <10 <10 <10 <10 11/27/06 <10 <10 <10 <10 <10 <10 <10 06/12/07 3.1 JB 3 JB 3.6 JB 2.9 JB 2.4 JB 2.6 JB 2.1 JB 4.8 J 2 10 t,f 12/12/07 <2 <2 <2 7.4 J <2 <2 <2 2 10 03/06/08 2 10 06/12/08 2.8 J <2 <2 13.1 <2 <2 <2 <2 6.7 J 2 10 11/05/08 4.8 JB <2 <2 9.2 JB <2 <2 <2 <2 3.3 JB 2 10 i 05/19/09 4.3 J <1.6 <1.6 12.3 <1.6 <1.6 <1.6 <1.6 1.7 J 1.6 10 11/18/09 2.25 J <1.9 <1.9 11.3 <1.9 3.22 J <1.9 <1.9 <1.9 1.9 10 06/21/10 2.30 J <1.9 <1.9 7.23 J <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/18/10 3.51 J <1.9 <1.9 3.85 J <1.9 1.94 J <1.9 <1.9 1.99 J 1.9 10 05/23/11 3.41 J <1.9 <1.9 16.7 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/15/11 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 06/05/12 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/12/12 <1.9 <1.9 <1.9 12.6 JD <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 05/13/13 <2.1 <2.1 <2.1 <2.1 <2.1 <2.1 <2.1 <2.1 <2.1 2.1 10 11/11/13 <2.10 <2.10 <2.10 12.4 <2.10 <2.10 <2.10 <2.10 <2.10 2.10 10 05/12/14 3.01 J <2.10 3.27 J 11.0 <2.10 4.23 J <2.10 <2.10 <2.10 2.10 10 11/11/14 <2.10 <2.10 <2.10 <4.20 <2.10 <2.10 <2.10 <2.10 <2.10 2.10/4.20 10 02/23/15 05/12/15 <3.10 <3.10 <3.10 <3.10 <3.10 4.16 J <3.10 <3.10 <3.10 3.10 10 08/24/15 11/10/15 <3.10 <3.10 <3.10 7.42 J <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/22/16 05/19/16 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/23/16 11/16/16 4.37 J <3.10 <3.10 13.0 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/22/17 05/30/17 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/22/17 11/14/17 <3.10 <3.10 <3.10 4.41 J <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/18/18 05/14/18 3.30 J <3.10 <3.10 16.4 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/24/18 11/12/18 <3.10 <3.10 <3.10 <15.5 D <3.10 <3.10 <3.10 <3.10 <3.10 3.1; 15.5 10; 50 02/14/19 05/20/19 3.41 J <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/27/19 11/19/19 4.10 J <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/24/20 05/19/20 4.10 J <3.10 <3.10 12.1 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 08/18/20 11/16/20 <3.10 <3.10 <3.10 21.1 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 02/16/21 05/19/21 <3.10 <3.10 <3.10 5.81 J <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 11/23/21 <3.10 <3.10 <3.10 4.77 J <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 05/23/22 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10 11/07/22 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 6.6 10 05/02/23 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 <6.6 6.6 10 11/20/23 <5.0 <5.0 <5.0 <50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 Sample Date MW-21S MW-24 QA/QCMW-15 MW-16 MW-17 MW-20 MW-21D INORGANIC CONSTITUENTS: TOTAL METALS Constituent LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS MW-22 MRLMW-23 MDL CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-301MW-21D2 mercury 04/17/90 <0.2 <0.2 <0.2 <0.2 <0.2 MCL = 2 07/11/91 <0.2 <0.2 0.58 0.3 <0.2 <0.2 FBAC = MRL 05/28/92 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 NCGQS = 1 (2L Std)06/30/93 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 2L Std = 1.05 (pre- Jan. 2010)11/04/94 2L Std = 1 (Jan. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 <0.5 <0.5 02/25/97 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 09/03/97 05/04/98 11/02/98 <0.2 <0.2 0.2 <0.2 0.2 04/26/99 <0.2 <0.2 0.7 B <0.2 d,i 11/22/99 <0.2 <0.2 0.5 B <0.2 <0.2 i 05/23/00 <0.2 0.6 J <0.2 0.3 J <0.2 0.5 J d,cc 11/29/00 <0.2 <0.2 <0.2 <0.2 <0.2 d 06/05/01 <0.2 0.3 <0.2 0.9 <0.2 11/13/01 06/04/02 <0.2 <0.2 <0.2 03/12/03 <0.2 <0.2 <0.2 <0.2 06/18/03 <0.2 <0.2 <0.2 <0.2 <0.2 12/08/03 <0.2 <0.2 <0.2 06/22/04 <0.2 <0.2 <0.2 11/30/04 <0.2 <0.2 <0.2 06/01/05 <0.2 <0.2 <0.2 11/02/05 <0.2 <0.2 <0.2 05/22/06 <0.2 <0.2 <0.2 11/27/06 <0.2 <0.2 <0.2 06/12/07 <0.01 0.04 J <0.01 <0.01 0.01 0.2 12/12/07 0.02 JB <0.01 <0.01 0.01 0.2 i 03/06/08 <0.01 0.01 0.2 06/12/08 0.1 JB 0.04 JB 0.06 JB <0.01 0.02 JB 0.01 0.2 f 11/05/08 0.14 JB <0.01 0.16 JB 0.04 JB <0.01 <0.01 0.01 0.2 f, i 05/19/09 <0.05 <0.05 0.35 <0.05 <0.05 <0.05 0.05 0.2 11/18/09 <0.054 0.117 J 0.805 <0.054 <0.054 <0.054 0.054 0.2 06/21/10 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2 11/18/10 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2 injection event (03-29-11)05/23/11 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2 08/23/11 injection event (09-28-11)11/15/11 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2 02/21/12 injection event (04-14-12)06/05/12 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2 10/09/12 injection event (09-13-12)11/12/12 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2 02/18/13 05/13/13 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.2 11/11/13 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 02/10/14 0.170 0.2 05/12/14 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 08/18/14 0.170 0.2 11/11/14 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 02/23/15 0.170 0.2 05/12/15 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 08/24/15 11/10/15 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 02/22/16 0.170 0.2 05/19/16 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 08/23/16 11/16/16 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 02/22/17 05/30/17 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.2 08/22/17 11/14/17 <0.099 0.162 J <0.099 <0.099 <0.099 0.099 0.2 02/18/18 05/14/18 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 08/24/18 11/12/18 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 02/14/19 05/20/19 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 08/27/19 11/19/19 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 02/24/20 05/19/20 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 08/18/20 11/16/20 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 02/16/21 05/19/21 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 11/23/21 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 05/23/22 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.2 11/07/22 <0.080 0.11 J <0.080 <0.080 <0.080 0.080 0.20 05/02/23 <0.080 <0.080 <0.080 <0.080 <0.080 0.080 0.20 11/20/23 <0.20 <0.20 <0.20 <0.20 <0.20 0.20 MW-6R HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS MW-1 MW-4 MW-5 QA/QCMW-7R MDL MRLMW-14AMW-6 MW-14BConstituentMW-13Sample Date MW-7 CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM mercury 04/17/90 <0.2 <0.2 MCL = 2 07/11/91 <0.2 <0.2 FBAC = MRL 05/28/92 <0.2 <0.2 <0.2 NCGQS = 1 (2L Std)06/30/93 <0.2 <0.2 <0.2 2L Std = 1.05 (pre- Jan. 2010)11/04/94 2L Std = 1 (Jan. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 <0.5 <0.5 02/25/97 <0.5 <0.5 <0.5 <0.5 09/03/97 05/04/98 11/02/98 0.5 <0.2 <0.2 <0.2 04/26/99 0.6 B 0.2 B 0.3 B 0.3 B d,i 11/22/99 0.3 B 0.3 B <0.2 <0.2 i 05/23/00 0.5 J <0.2 0.6 J 0.4 J 0.7 J <0.2 <0.2 d,cc 11/29/00 <0.2 <0.2 0.4 J <0.2 1.0 J <0.2 <0.2 d 06/05/01 <0.2 <0.2 <0.2 <0.2 1.0 <0.2 <0.2 11/13/01 06/04/02 <0.2 <0.2 <0.2 <0.2 1.4 <0.2 <0.2 03/12/03 <0.2 <0.2 <0.2 <0.2 1.0 <0.2 <0.2 06/18/03 <0.2 <0.2 <0.2 <0.2 0.6 <0.2 <0.2 12/08/03 <0.2 <0.2 <0.2 <0.2 0.5 <0.2 <0.2 06/22/04 <0.2 <0.2 <0.2 <0.2 1.1 <0.2 <0.2 11/30/04 <0.2 <0.2 <0.2 <0.2 1.1 <0.2 <0.2 06/01/05 <0.2 <0.2 <0.2 <0.2 0.6 <0.2 <0.2 11/02/05 <0.2 <0.2 <0.2 <0.2 3.6 <0.2 <0.2 05/22/06 <0.2 <0.2 <0.2 <0.2 1.9 <0.2 <0.2 11/27/06 <0.2 <0.2 <0.2 <0.2 1.48 0.48 <0.2 06/12/07 <0.01 <0.01 <0.01 <0.01 1.8 0.33 <0.01 0.74 0.01 0.2 12/12/07 <0.01 0.04 JB <0.01 <0.01 3.2 0.201 B 0.06 JB 0.01 0.2 i 03/06/08 0.01 0.2 06/12/08 0.14 JB 0.17 JB 0.08 JB 0.09 JB 1.8 0.37 B 0.16 JB 0.6 B 0.01 0.2 f 11/05/08 0.18 JB 0.08 JB <0.01 <0.01 2.2 0.12 JB <0.01 0.6 B 0.12 JB 0.01 0.2 f, i 05/19/09 <0.05 <0.05 <0.05 <0.05 2.16 0.81 <0.05 0.06 J <0.05 0.05 0.2 11/18/09 <0.054 <0.054 <0.054 <0.054 3.3 1.59 <0.054 0.482 <0.054 0.054 0.2 06/21/10 <0.17 <0.17 <0.17 <0.17 1.9 2.7 <0.17 <0.17 <0.17 0.17 0.2 11/18/10 <0.17 <0.17 <0.17 <0.17 3.13 1.64 <0.17 0.755 <0.17 0.17 0.2 injection event (03-29-11)05/23/11 <0.17 <0.17 <0.17 <0.17 1.77 1.52 <0.17 0.344 <0.17 0.17 0.2 08/23/11 2.23 2.37 1.48 <0.17 0.17 0.2 injection event (09-28-11)11/15/11 <0.17 <0.17 <0.17 <0.17 2.95 0.748 <0.17 1.74 <0.17 0.17 0.2 02/21/12 injection event (04-14-12)06/05/12 <0.17 <0.17 <0.17 <0.17 0.981 0.407 <0.17 0.652 <0.17 0.17 0.2 10/09/12 injection event (09-13-12)11/12/12 <0.17 <0.17 <0.17 <0.17 7.8 1.34 <0.17 3.07 <0.17 0.17 0.2 02/18/13 05/13/13 <0.17 <0.17 <0.17 <0.17 2.1 1.25 <0.17 0.417 <0.17 0.17 0.2 11/11/13 <0.170 <0.170 <0.170 <0.170 3.04 1.01 <0.170 2.57 <0.170 0.170 0.2 02/10/14 2.20 1.49 0.919 <0.170 0.170 0.2 05/12/14 <0.170 <0.170 <0.170 <0.170 1.39 1.31 <0.170 0.913 <0.170 0.170 0.2 08/18/14 1.25 2.33 3.61 <0.170 0.170 0.2 11/11/14 <0.170 <0.170 <0.170 <0.170 1.51 0.618 <0.170 4.25 <0.170 0.170 0.2 02/23/15 2.53 2.74 3.71 <0.170 0.170 0.2 05/12/15 <0.170 <0.170 <0.170 <0.170 0.960 1.69 <0.170 1.33 <0.170 0.170 0.2 08/24/15 1.59 4.22 4.57 <0.170 0.170 0.2 11/10/15 <0.170 <0.170 <0.170 <0.170 1.32 2.21 3.67 <0.170 0.170 0.2 02/22/16 1.11 1.47 1.84 <0.170 0.170 0.2 05/19/16 <0.170 <0.170 <0.170 <0.170 0.671 2.96 1.98 <0.170 0.170 0.2 08/23/16 11/16/16 <0.170 <0.170 <0.170 <0.170 1.13 1.08 4.32 <0.170 0.170 0.2 02/22/17 1.10 0.665 2.81 <0.170 0.170 0.2 05/30/17 <0.170 <0.170 <0.170 <0.170 1.20 1.35 <0.170 2.20 <0.170 0.170 0.2 08/22/17 1.19 2.11 4.71 <0.099 0.099 0.2 11/14/17 <0.099 <0.099 <0.099 <0.099 1.30 1.00 <0.099 5.20 <0.099 0.099 0.2 02/18/18 1.31 3.33 5.42 <0.150 0.150 0.2 05/14/18 <0.150 <0.150 <0.150 <0.150 1.26 1.10 <0.150 4.83 <0.150 0.150 0.2 08/24/18 1.05 0.996 5.01 <0.150 0.150 0.2 11/12/18 <0.150 <0.150 <0.150 <0.150 0.901 1.39 <0.150 3.05 <0.150 0.150 0.2 02/14/19 <0.150 <0.150 <0.150 <0.150 0.842 0.792 <0.150 2.37 <0.150 0.150 0.2 05/20/19 <0.150 <0.150 <0.150 <0.150 0.692 0.679 <0.150 1.96 <0.150 0.150 0.2 08/27/19 11/19/19 <0.150 <0.150 <0.150 <0.150 0.626 1.98 0.162 J 5.73 0.186 J 0.150 0.2 02/24/20 0.773 1.04 5.71 <0.150 0.150 0.2 05/19/20 <0.150 <0.150 <0.150 <0.150 0.824 0.793 <0.150 3.16 <0.150 0.150 0.2 08/18/20 0.793 0.727 5.95 <0.150 0.150 0.2 11/16/20 <0.150 <0.150 <0.150 <0.150 0.736 0.925 <0.150 4.81 <0.150 0.150 0.2 02/16/21 0.773 1.04 5.71 <0.150 0.150 0.2 05/19/21 <0.150 <0.150 <0.150 <0.150 0.653 1.02 <0.150 2.34 <0.150 0.150 0.2 05/19/21 <0.150 <0.150 <0.150 <0.150 1.21 2.43 <0.150 6.14 <0.150 0.150 0.2 05/23/22 <0.150 <0.150 <0.150 <0.150 0.843 0.748 <0.150 3.70 <0.150 0.150 0.2 11/07/22 <0.080 <0.080 <0.080 <0.080 0.28 0.25 <0.080 2.70 <0.080 0.080 0.20 05/02/23 <0.080 <0.080 <0.080 <0.080 0.13 J 0.74 1.4 <0.080 4.1 0.11 J 0.080 0.20 11/20/23 <0.20 <0.20 <0.20 <0.20 <0.20 1.6 5.9 <0.20 5.7 <0.20 <0.20 0.20 Constituent Sample Date MW-15 MW-16 MW-23MW-21D FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-17 QA/QCMW-20 HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS CLIENT: THE COUNTY OF ORANGE LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MDL MRLMW-21S MW-22 MW-24MW-21D2 MW-301 nickel 04/17/90 <50 <50 <50 <50 <50 MCL = ♦07/11/91 <50 <50 <50 <50 <50 FBAC = 2.688 05/28/92 <50 <50 <50 <50 <50 <50 <50 NCGQS = 100 (2L Std)06/30/93 <50 <50 <50 <50 <50 <50 11/04/94 <50 <50 <50 <50 <50 <50 12/20/94 <50 <50 <50 <50 <50 <50 02/02/95 <50 <50 <50 <50 <50 <50 <50 <50 03/13/95 <50 <50 <50 <50 <50 <50 <50 <50 11/15/95 <50 <50 <50 <50 <50 <50 <50 <50 07/25/96 <50 <50 <50 <50 <50 <50 02/25/97 <50 <50 <50 <50 65 J <50 <50 <50 i,t,d,sd 09/03/97 <50 <50 <50 <50 <50 05/04/98 <50 <50 <50 <50 <50 <50 <50 <50 11/02/98 <50 <50 <50 <50 <50 04/26/99 <50 <50 <50 <50 <50 11/22/99 <50 <50 <50 <50 <50 05/23/00 <50 <50 <50 <50 <50 <50 <50 <50 q 11/29/00 <50 <50 <50 <50 <50 06/05/01 <50 <50 <50 <50 <50 <50 <50 i 11/13/01 <50 <50 <50 06/04/02 <50 <50 <50 03/12/03 <50 <50 <50 <50 06/18/03 <50 <50 <50 <50 <50 12/08/03 <50 <50 <50 06/22/04 <50 <50 <50 11/30/04 <50 <50 <50 06/01/05 <50 <50 <50 11/02/05 <50 <50 <50 05/22/06 <50 <50 <50 11/27/06 <50 <50 <50 06/12/07 1 J 38.3 J 6.3 J 1.6 J 0.6 50 12/12/07 2.6 JB 8.2 J 2.4 JB 0.6 50 i 03/06/08 6.98 J 0.6 50 06/12/08 <0.6 3.8 J 5.6 J 7.9 J 6.6 J 0.8 J 0.6 50 09/20/08 0.6 50 11/05/08 9.2 J 8.8 J 0.7 JB 15.9 J 6.7 J 2.4 JB 0.6 50 f 05/19/09 <0.6 3.2 J <0.6 12.1 J 5.3 J 2.5 J 0.6 50 11/18/09 <1.8 <1.8 <1.8 3.62 J 6.23 J <1.8 1.8 50 06/21/10 <1.8 <1.8 <1.8 10.6 J 4.71 J <1.8 1.8 50 11/18/10 <1.8 2.72 J <1.8 1.82 J 5.77 J <1.8 1.8 50 05/23/11 <1.8 1.81 J <1.8 23.8 J 6.32 J <1.8 1.8 50 11/15/11 <1.8 <1.8 2.44 J 6.89 J <1.8 1.8 50 06/05/12 <1.8 <1.8 10.7 J 7.24 J <1.8 1.8 50 11/12/12 <1.8 <1.8 17.4 J 5.24 J <1.8 1.8 50 05/13/13 <1.8 <1.8 21.1 J 4.39 J 3.3 J 1.8 50 i 11/11/13 <1.80 <1.80 33.8 J 8.68 J 2.26 J 1.80 50 05/12/14 <1.80 <1.80 19.3 J 5.28 J 3.55 J 1.80 50 11/11/14 <1.80 <1.80 5.27 J 7.34 J 1.93 J 1.80 50 02/23/15 05/12/15 <1.80 <1.80 11.7 J 7.50 J 5.30 J 1.80 50 08/24/15 11/10/15 <1.80 <1.80 3.32 J 7.04 J <1.8 1.80 50 02/22/16 05/19/16 <1.80 <1.80 13.5 J 7.11 J 4.78 J 1.80 50 08/23/16 11/16/16 <2.20 <2.20 16.3 J 7.31 J 3.00 J 2.20 50 02/22/17 05/30/17 <2.20 <2.20 15.8 J 4.35 J 3.33 J 2.20 50 08/22/17 11/14/17 <2.20 <2.20 7.85 J 6.43 J <2.20 2.20 50 02/18/18 05/14/18 <2.20 <2.20 10.2 J 4.20 J 4.61 J 2.20 50 08/24/18 11/12/18 <2.20 <2.20 9.56 J 4.83 J 12.5 2.20 10 02/14/19 05/20/19 <2.20 2.57 J 11.4 7.12 J 7.74 J 2.20 10 08/27/19 11/19/19 <2.20 <2.20 16.5 6.50 J 7.90 J 2.20 10 02/24/20 05/19/20 <2.20 <2.20 9.89 J 5.07 J 3.34 J 2.20 10 08/18/20 11/1/620 <2.20 <2.20 8.99 J 4.13 J 5.82 J 2.20 10 02/16/21 05/19/21 <2.20 <2.20 11.1 5.79 J 5.97 J 2.20 1011/23/21 <2.20 <2.20 9.19 J 4.20 J 6.40 J 2.20 10 05/23/22 <2.20 <2.20 14.3 2.52 J 2.67 J 2.20 10 11/07/22 <3.3 <3.3 8.3 J 5.1 J 7.1 J 3.30 40 05/02/23 <3.3 <3.3 7.9 J 6.0 J 4.9 J 3.30 4011/20/23 <5.0 <5.0 6.6 8.3 7.8 5.0 MW-6RMW-4 MW-14A MW-14B QA/QCMW-13MW-7RMW-5 MRLMDL INORGANIC CONSTITUENTS: TOTAL METALS HISTORY OF CHEMICAL ANALYSIS PROJECT: GROUNDWATER MONITORING PROGRAM LOCATION: CHAPEL HILL, NORTH CAROLINA MW-6 MW-7ConstituentSample Date MW-1 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE nickel 04/17/90 <50 <50 MCL = ♦07/11/91 <50 <50 FBAC = 2.688 05/28/92 <50 <50 <50 NCGQS = 100 (2L Std)06/30/93 <50 <50 <50 11/04/94 <50 <50 <50 <50 12/20/94 <50 <50 <50 <50 02/02/95 <50 <50 <50 <50 03/13/95 <50 <50 <50 <50 11/15/95 <50 <50 <50 <50 07/25/96 <50 <50 <50 <50 02/25/97 <50 <50 <50 <50 i,t,d,sd 09/03/97 <50 <50 <50 <50 05/04/98 <50 <50 <50 <50 11/02/98 <50 <50 <50 <50 04/26/99 <50 <50 <50 <50 11/22/99 <50 <50 <50 <50 05/23/00 <50 <50 <50 <50 111 J <50 <50 q 11/29/00 <50 <50 <50 <50 <50 <50 <50 06/05/01 <50 <50 <50 <50 <50 <50 <50 i 11/13/01 <50 <50 <50 <50 <50 <50 <50 06/04/02 <50 <50 <50 <50 <50 <50 <50 03/12/03 <50 <50 <50 <50 <50 <50 <50 06/18/03 <50 <50 <50 <50 <50 <50 <50 12/08/03 <50 <50 <50 <50 <50 <50 <50 06/22/04 <50 <50 <50 <50 <50 <50 <50 11/30/04 <50 <50 <50 <50 <50 <50 <50 06/01/05 <50 <50 <50 <50 <50 <50 <50 11/02/05 <50 <50 <50 <50 <50 <50 <50 05/22/06 <50 <50 <50 <50 <50 <50 <50 11/27/06 <50 <50 <50 <50 <50 <50 <50 06/12/07 11.5 J 2.7 J 1.4 J 2.8 J <0.6 1.9 J 1.3 J 99.3 0.6 50 12/12/07 15.6 J 3.2 JB 2.9 JB 4.9 JB 6.6 J 2.4 JB 1.8 JB 0.6 50 i 03/06/08 0.6 50 06/12/08 8.5 J 1.6 J 1.4 J 2.9 J <0.6 1.2 J 1.8 J <0.6 110 R 0.6 50 09/20/08 3.1 J 0.6 50 11/05/08 8.1 J 1.4 JB 2.2 JB 10.6 J <0.6 2.4 JB 1.8 JB <0.6 1 JB 0.6 50 f 05/19/09 14.6 J 4.2 J 4.5 J 14.5 J 0.6 J 3.2 J 2.2 J 0.7 J 1.2 J 0.6 50 11/18/09 7.38 J 1.92 J 2.55 J 4.74 J <1.8 3.6 J <1.8 <1.8 <1.8 1.8 50 06/21/10 6.34 J <1.8 1.9 J <1.8 <1.8 4.05 J <1.8 1.81 J <1.8 1.8 50 11/18/10 8.17 J 2.04 J 2.53 J 2.13 J <1.8 <1.8 <1.8 <1.8 2.54 J 1.8 50 05/23/11 10.5 J 2.69 J 3.61 J <1.8 <1.8 2.07 J <1.8 <1.8 <1.8 1.8 50 11/15/11 12.8 J 3.13 J 3.83 J 4.89 J <1.8 1.95 J <1.8 <1.8 <1.8 1.8 50 06/05/12 11.8 J 3.99 J 4.8 J <1.8 <1.8 <1.8 <1.8 <1.8 3.06 J 1.8 50 11/12/12 8.86 J 2.02 J 3.18 J <1.8 <1.8 <1.8 <1.8 <1.8 3.44 J 1.8 50 05/13/13 12.3 J 2.7 JB <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 1.86 J 1.8 50 i 11/11/13 12.3 J 1.91 J 4.25 J <1.80 <1.80 <1.80 <1.80 <1.80 <1.80 1.80 50 05/12/14 17.7 J 2.90 J 3.31 J <1.80 <1.80 <1.80 <1.80 <1.80 <1.80 1.80 50 11/11/14 14.1 J 1.94 J 3.46 J <3.60 <1.80 <1.80 <1.80 <1.80 <1.80 1.80/3.60 50 02/23/15 05/12/15 20.9 J 5.52 J 3.38 J <1.80 <1.80 1.86 J <1.80 <1.80 <1.80 1.80 50 08/24/15 11/10/15 13.5 J 2.85 J 20.9 J <1.80 <1.80 <1.80 <1.80 <1.80 <1.80 1.80 50 02/22/16 05/19/16 17.9 J 4.30 J 2.41 J <1.80 <1.80 <1.80 <1.80 <1.80 <1.80 1.80 50 08/23/16 11/16/16 13.4 J 3.36 J 6.17 J <2.20 <2.20 <2.20 2.70 J <2.20 <2.20 2.20 50 02/22/17 05/30/17 15.6 J 4.84 J 2.29 J <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50 08/22/17 11/14/17 11.1 J 2.62 J 3.20 J 4.52 J <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50 02/18/18 05/14/18 14.8 J 3.03 J <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50 08/24/18 11/12/18 17.1 4.10 J 3.16 J <11.0 D <2.20 <2.20 <2.20 <2.20 <2.20 2.2. 11 10; 50 02/14/19 05/20/19 18.4 6.00 J 2.38 J 3.09 J <2.20 4.39 J <2.20 <2.20 <2.20 2.20 10 08/27/19 11/19/19 14.6 4.60 J 3.42 J <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10 02/24/20 05/19/20 11.0 2.27J <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10 08/18/20 11/16/20 11.9 2.70 J <2.20 20.5 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10 02/16/21 05/19/21 16.8 3.95 J 2.35 J <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 1011/23/21 13.3 2.79 J 5.11 J <2.20 <2.20 <2.20 2.33 J 7.31 J <2.20 2.20 10 05/23/22 10.9 4.71 J 9.39 J <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10 11/07/22 15 J 4.1 J 4.0 J 5.1 J <3.3 <3.3 3.3 J <3.3 <3.3 3.30 40 05/02/23 25 J 3.5 J <3.3 7.1 J <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 3.30 4011/20/23 16.2 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MDL MRLMW-21D MW-21S MW-22ConstituentMW-17 MW-23 LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS CLIENT: THE COUNTY OF ORANGE QA/QCMW-20Sample Date MW-15 MW-16 MW-24MW-21D2 MW-301 selenium 04/17/90 MCL = 50 07/11/91 FBAC = 5.9 05/28/92 NCGQS = 20 (2L Std)06/30/93 2L Std = 50 (pre- Jan. 2010)11/04/94 2L Std = 20 (Jan. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 06/05/01 11/13/01 06/04/02 03/12/03 06/18/03 12/08/03 06/22/04 11/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 12/12/07 <6.3 <6.3 <6.3 6.3 10 03/06/08 <6.3 6.3 10 06/12/08 <6.3 <6.3 <6.3 <6.3 <6.3 <6.3 6.3 10 11/05/08 <6.3 <6.3 <6.3 <6.3 <6.3 <6.3 6.3 10 i 05/19/09 <3.4 <3.4 3.5 J <3.4 5.6 J <3.4 3.4 10 11/18/09 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 10 06/21/10 <0.83 <0.83 <0.83 1.2 J 11.3 9.8 J 0.83 10 11/18/10 <2.7 10.9 B <2.7 <2.7 3.24 JB <2.7 2.7 10 i 05/23/11 <0.83 <0.83 2.11 J 4.56 J 14.4 10.8 0.83 10 11/15/11 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 10 i 06/05/12 <0.83 <0.83 <0.83 <0.83 <0.83 0.83 10 11/12/12 <0.83 <0.83 <0.83 <0.83 <0.83 0.83 10 05/13/13 <0.91 1.05 J <0.91 <0.91 <0.91 0.91 10 11/11/13 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 05/12/14 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 11/11/14 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 02/23/15 05/12/15 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 08/24/15 11/10/15 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 02/22/16 05/19/16 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 08/23/16 11/16/16 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 02/22/17 05/30/17 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 08/22/17 11/14/17 <0.910 <0.910 <0.910 <0.910 <0.910 0.910 10 02/18/18 05/14/18 <4.55 <4.55 <4.55 <4.55 <4.55 4.55 10 08/24/18 11/12/18 <4.55 <4.55 <4.55 <4.55 <4.55 4.55 5 02/14/19 05/20/19 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 08/27/19 11/19/19 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 02/24/20 05/19/20 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 08/18/20 11/16/20 <1.82 <1.82 <1.82 1.90 J <1.82 1.82 2 02/16/21 05/19/21 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 11/23/21 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 05/23/22 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 11/07/22 <1.2 <1.2 <1.2 <1.2 <1.2 1.20 2.5 05/02/23 <1.2 <1.2 <1.2 <1.2 <1.2 1.20 2.5 11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 10.0 MW-6R LOCATION: CHAPEL HILL, NORTH CAROLINA FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS Constituent Sample Date MW-1 MW-4 MW-5 MW-6 MW-7 MW-7R MW-13 MW-14A MW-14B MDL MRL QA/QC PROJECT: GROUNDWATER MONITORING PROGRAM selenium 04/17/90 MCL = 50 07/11/91 FBAC = 5.9 05/28/92 NCGQS = 20 (2L Std)06/30/93 2L Std = 50 (pre- Jan. 2010)11/04/94 2L Std = 20 (Jan. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 06/05/01 11/13/01 06/04/02 03/12/03 06/18/03 12/08/03 06/22/04 11/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 12/12/07 6.7 J <6.3 8.5 J <6.3 <6.3 <6.3 <6.3 6.3 10 03/06/08 6.3 10 06/12/08 <6.3 <6.3 6.5 J <6.3 <6.3 <6.3 <6.3 <6.3 <6.3 6.3 10 11/05/08 <6.3 <6.3 <6.3 <6.3 <6.3 <6.3 <6.3 <6.3 6.4 JB 6.3 10 i 05/19/09 <3.4 <3.4 <3.4 <3.4 3.8 J <3.4 <3.4 <3.4 4.4 J 3.4 10 11/18/09 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 10 06/21/10 10.2 2.56 J 6.3 J 34.2 3.74 J 3.1 J 4.74 J 2.65 J 3.85 J 0.83 10 11/18/10 7.14 JB <2.7 <2.7 8.83 JB <2.7 <2.7 <2.7 <2.7 <2.7 2.7 10 i 05/23/11 10.3 3.99 J 8.33 J 37.6 3.33 J 2.78 J 6.24 J 3.34 J 3.92 J 0.83 10 11/15/11 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 10 i 06/05/12 <0.83 <0.83 <0.83 1.02 J <0.83 0.84 J <0.83 <0.83 <0.83 0.83 10 11/12/12 <0.83 <0.83 <0.83 <0.83 1.6 J 4.93 J <0.83 <0.83 <0.83 0.83 10 05/13/13 <0.91 <0.91 <0.91 0.961 J <0.91 6.35 J <0.91 <0.91 <0.91 0.91 10 11/11/13 <0.910 <0.910 <0.910 0.924 J <0.910 5.26 J <0.910 <0.910 <0.910 0.910 10 05/12/14 <0.910 <0.910 <0.910 <0.910 <0.910 4.10 J <0.910 <0.910 <0.910 0.910 10 11/11/14 <0.910 <0.910 <0.910 <0.910 <0.910 2.95 J <0.910 <0.910 <0.910 0.910 10 02/23/15 05/12/15 <0.910 <0.910 <0.910 <0.910 <0.910 2.42 J <0.910 <0.910 <0.910 0.910 10 08/24/15 11/10/15 <0.910 <0.910 <0.910 1.38 J <0.910 3.58 J <0.910 <0.910 <0.910 0.910 10 02/22/16 05/19/16 1.34 J 1.03 J 2.05 J <0.910 1.64 J 2.13 J <0.910 1.17 J 2.36 J 0.910 10 08/23/16 11/16/16 <0.910 <0.910 <0.910 <4.55 D <0.910 1.74 J <0.910 <0.910 <0.910 0.910 10 02/22/17 05/30/17 <0.910 <0.910 <0.910 <4.55 D <0.910 1.06 J <0.910 <0.910 <0.910 0.91/4.55 10 08/22/17 11/14/17 <0.910 <0.910 <0.910 <0.910 <0.910 1.17 J <0.910 <0.910 <0.910 0.910 10 02/18/18 05/14/18 <4.55 <4.55 <4.55 <4.55 <4.55 <4.55 <4.55 <4.55 <4.55 4.55 10 08/24/18 11/12/18 4.84 J <4.55 <4.55 12.4 5.89 4.58 J <4.55 <4.55 <4.55 4.55 5 02/14/19 05/20/19 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 08/27/19 11/19/19 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 02/24/20 05/19/20 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 08/18/20 11/16/20 <1.82 <1.82 <1.82 <1.82 1.82 J <1.82 <1.82 <1.82 <1.82 1.82 2 02/16/21 05/19/21 <1.82 2.02 2.13 11.7 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 11/23/21 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 05/23/22 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2 11/07/22 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 2.5 05/02/23 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 2.5 11/20/23 <10.0 <10.0 <10.0 <100 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 10.0 MW-24 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-21D MW-21S MW-22 MW-23 MDL QA/QCMW-20 MRL LOCATION: CHAPEL HILL, NORTH CAROLINA MW-15 MW-16 MW-17 CLIENT: THE COUNTY OF ORANGE PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS Constituent Sample Date MW-21D2 MW-301 silver 04/17/90 MCL = ♦07/11/91 FBAC = 2.13 05/28/92 NCGQS = 20 (2L Std)06/30/93 2L Std = 17.5 (pre- Jan. 2010)11/04/94 2L Std = 20 (Jan. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 <10 <10 <10 <10 <10 i,t,f 06/05/01 <10 <10 <10 <10 <10 <10 i,t,f 11/13/01 <10 <10 <10 <10 t,f 06/04/02 <10 <10 <10 03/12/03 <10 <10 <10 <10 06/18/03 <10 <10 <10 <10 <10 12/08/03 <10 <10 <10 06/22/04 <10 <10 <10 11/30/04 <10 <10 <10 06/01/05 <10 <10 <10 11/02/05 <10 <10 <10 05/22/06 <10 <10 <10 11/27/06 <10 <10 <10 06/12/07 <1.1 <1.1 <1.1 <1.1 1.1 10 cc 12/12/07 <1.1 2.6 J 10 1.1 10 03/06/08 <1.1 1.1 10 06/12/08 <1.1 <1.1 <1.1 <1.1 2.6 JB <1.1 1.1 10 t, i 11/05/08 <1.1 <1.1 <1.1 <1.1 <1.1 10 JB 1.1 10 i 05/19/09 <1 2 J <1 <1 1.1 J 1.4 J 1 10 11/18/09 <1.9 2.68 J <1.9 <1.9 2.89 J <1.9 1.9 10 06/21/10 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/18/10 <1.9 5.16 J <1.9 <1.9 3.61 J 4.16 J 1.9 10 05/23/11 <1.9 3.42 J <1.9 <1.9 2.03 J 2.92 J 1.9 10 11/15/11 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 06/05/12 <1.9 <1.9 <1.9 2.98 J 2.34 J 1.9 10 11/12/12 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 05/13/13 <1.9 <1.9 <1.9 2.27 J <1.9 1.9 10 11/11/13 <1.90 <1.90 <1.90 2.32 J <1.90 1.90 10 05/12/14 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 11/11/14 1.96 JB 2.01 JB 2.08 JB 3.91 JB 2.18 JB 1.90 10 i 02/23/15 05/12/15 <1.90 1.94 J 2.90 J 4.54 J <1.90 1.90 10 08/24/15 11/10/15 <1.90 <1.90 3.52 J 5.58 J 4.38 J 1.90 10 02/22/16 05/19/16 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/23/16 11/16/16 <1.90 <1.90 2.38 J 2.36 J 2.50 J 1.90 10 02/22/17 05/30/17 <1.90 <1.90 <1.90 7.34 J <1.90 1.90 10 08/22/17 11/14/17 <1.90 <1.90 <1.90 <1.90 3.00 J 1.90 10 02/18/18 05/14/18 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/24/18 11/12/18 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 02/14/19 05/20/19 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/27/19 11/19/19 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 02/24/20 05/19/20 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/18/20 11/16/20 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 02/16/21 05/19/21 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 11/23/21 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 05/23/22 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 11/07/22 <1.5 <1.5 <1.5 <1.5 <1.5 1.50 10 05/02/23 <1.5 <1.5 <1.5 <1.5 <1.5 1.50 10 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-6R MDL MRL LOCATION: CHAPEL HILL, NORTH CAROLINA MW-5 MW-6 PROJECT: GROUNDWATER MONITORING PROGRAM Constituent Sample Date MW-1 MW-13 QA/QC CLIENT: THE COUNTY OF ORANGE MW-4 HISTORY OF CHEMICAL ANALYSIS MW-14AMW-7 INORGANIC CONSTITUENTS: TOTAL METALS MW-14BMW-7R silver 04/17/90 MCL = ♦07/11/91 FBAC = 2.13 05/28/92 NCGQS = 20 (2L Std)06/30/93 2L Std = 17.5 (pre- Jan. 2010)11/04/94 2L Std = 20 (Jan. 2010)12/20/942L Std = 20 (Nov. 2019)02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 <10 <10 <10 <10 <10 <10 11 B i,t,f 06/05/01 <10 <10 <10 <10 <10 <10 <10 i,t,f 11/13/01 <10 <10 <10 <10 <10 <10 <10 t,f 06/04/02 <10 <10 <10 <10 <10 <10 <10 03/12/03 <10 <10 <10 <10 <10 <10 <10 06/18/03 <10 <10 <10 <10 <10 <10 <10 12/08/03 <10 <10 <10 <10 <10 <10 <10 06/22/04 <10 <10 <10 <10 <10 <10 <10 11/30/04 <10 <10 <10 <10 <10 <10 <10 06/01/05 <10 <10 <10 <10 <10 <10 <10 11/02/05 <10 <10 <10 <10 <10 <10 <10 05/22/06 <10 <10 <10 <10 <10 <10 <10 11/27/06 <10 <10 <10 <10 <10 <10 <10 06/12/07 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 1.1 10 cc 12/12/07 1.3 J <1.1 1.2 J <1.1 <1.1 <1.1 <1.1 1.1 10 03/06/08 1.1 10 06/12/08 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 1.1 10 t, i 11/05/08 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 1.1 10 i 05/19/09 2.8 J <1 1 J <1 <1 <1 <1 <1 <1 1 10 11/18/09 4.6 J <1.9 2.7 J <1.9 2.37 J 2.39 J 2.79 J 1.91 J 2.23 J 1.9 10 06/21/10 <1.9 <1.9 <1.9 3.65 J <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/18/10 4.12 J <1.9 2.74 J 5.5 J 1.92 J <1.9 2.47 J <1.9 2.02 J 1.9 10 05/23/11 3.86 J <1.9 <1.9 2.96 J <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/15/11 2.44 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 06/05/12 3.77 J <1.9 2.93 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/12/12 2.29 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 05/13/13 2.79 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10 11/11/13 2.40 J <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 05/12/14 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 11/11/14 4.31 JB 2.10 JB 2.40 JB <3.80 2.50 JB 2.41 JB 2.51 JB 2.16 JB 2.37 JB 1.90/3.80 10 i 02/23/15 05/12/15 4.64 J <1.90 3.21 J <1.90 3.67 J 3.41 J 3.63 J 2.83 J 2.98 J 1.90 10 08/24/15 11/10/15 5.91 J <1.90 3.85 J 3.69 J 3.84 J 3.51 J 4.29 J 3.62 J 3.30 J 1.90 10 02/22/16 05/19/16 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/23/16 11/16/16 3.08 J 2.21 J 2.31 J <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 02/22/17 05/30/17 <1.90 <1.90 1.93 J <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/22/17 11/14/17 <1.90 <1.90 <1.90 8.03 J <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 02/18/18 05/14/18 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/24/18 11/12/18 <1.90 <1.90 <1.90 <9.5 D <1.90 <1.90 <1.90 <1.90 <1.90 1.9; 9.5 10; 50 02/14/19 05/20/19 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/27/19 11/19/19 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 02/24/20 05/19/20 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 08/18/20 11/16/20 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 02/16/21 05/19/21 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 11/23/21 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 05/23/22 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 11/07/22 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.50 10 05/02/23 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.50 10 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE MW-17ConstituentSample Date MW-15 MW-16 LOCATION: CHAPEL HILL, NORTH CAROLINA HISTORY OF CHEMICAL ANALYSIS MW-23 MDL MRL PROJECT: GROUNDWATER MONITORING PROGRAM MW-21D2 MW-24 QA/QCMW-20 MW-21D MW-21S MW-22 INORGANIC CONSTITUENTS: TOTAL METALS MW-301 thallium 04/17/90 MCL = 2 07/11/91 FBAC = 2.70 05/28/92 NCGQS = 0.28 (2L Std)06/30/93 11/04/94 12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 06/05/01 11/13/01 06/04/02 03/12/03 06/18/03 12/08/03 06/22/04 10/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 <2.7 <2.7 <2.7 <2.7 2.7 5.5 12/12/07 <2.7 <2.7 <2.7 2.7 5.5 03/06/08 <2.7 2.7 5.5 06/12/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 5.5 11/05/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 5.5 i 05/19/09 <0.036 0.061 JB <0.036 <0.036 <0.036 <0.036 0.036 5.5 11/18/09 0.26 J <0.11 <0.11 0.126 J 3 J 2.56 J 0.11 5.5 06/21/10 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 11/18/10 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 05/23/11 0.38 J 0.437 J 0.291 J 0.196 J <0.11 <0.11 0.11 5.5 11/15/11 0.129 J <0.11 <0.11 <0.11 <0.11 0.11 5.5 06/05/12 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 11/12/12 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 05/13/13 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 11/11/13 <0.110 <0.110 <0.110 0.155 J <0.110 0.110 5.5 05/12/14 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 11/11/14 0.347 J <0.110 <0.110 <0.110 <0.110 0.110 5.5 02/23/15 05/12/15 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 08/24/15 11/10/15 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 02/22/16 05/19/16 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 08/23/16 11/16/16 <0.110 <0.110 0.145 J 0.128 J <0.110 0.110 5.5 02/22/17 05/30/17 0.355 J <0.110 <0.110 0.549 J 0.489 J 0.110 5.5 08/22/17 11/14/17 0.273 J 0.286 J 0.269 J 0.147 J 0.170 J 0.110 5.5 02/18/18 05/14/18 <0.550 <0.550 <0.550 <0.550 <0.550 0.550 5.5 08/24/18 11/12/18 <0.550 <0.550 <0.550 <0.550 <0.550 0.550 5.0 02/14/19 05/20/19 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 08/27/19 11/19/19 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 02/24/20 05/19/20 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 08/18/20 11/16/20 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 02/16/21 05/19/21 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 11/23/21 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 05/23/22 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 11/07/22 <0.26 <0.26 <0.26 <0.26 <0.26 0.260 1.0 05/02/23 <0.26 <0.26 <0.26 <0.26 <0.26 0.260 1.0 11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 10.0 MW-6R HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS LOCATION: CHAPEL HILL, NORTH CAROLINA CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-13 MW-14A MW-14B MDLMW-5 MW-6 MW-7 MW-7RConstituentSample Date MW-1 MW-4 MRL QA/QC PROJECT: GROUNDWATER MONITORING PROGRAM thallium 04/17/90 MCL = 2 07/11/91 FBAC = 2.70 05/28/92 NCGQS = 0.28 (2L Std)06/30/93 11/04/94 12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 06/05/01 11/13/01 06/04/02 03/12/03 06/18/03 12/08/03 06/22/04 10/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 <2.7 4.7 J <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 5.5 12/12/07 <2.7 <2.7 <2.7 <2.7 <2.7 3.1 J <2.7 2.7 5.5 03/06/08 2.7 5.5 06/12/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 5.5 11/05/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.1 JB 2.7 5.5 i 05/19/09 <0.036 <0.036 <0.036 <0.036 <0.036 <0.036 <0.036 <0.036 <0.036 0.036 5.5 11/18/09 2.82 J <0.11 <0.11 <0.11 0.124 J 0.113 J <0.11 <0.11 0.129 J 0.11 5.5 06/21/10 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 11/18/10 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 05/23/11 <0.11 0.114 J 0.153 J <0.11 0.215 J 0.242 J <0.11 0.172 J 0.165 J 0.11 5.5 11/15/11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 06/05/12 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 11/12/12 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 05/13/13 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5 11/11/13 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 05/12/14 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 11/11/14 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 02/23/15 05/12/15 <0.110 <0.110 <0.110 0.114 J <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 08/24/15 11/10/15 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 02/22/16 05/19/16 0.110 J <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5 08/23/16 11/16/16 0.236 J 0.187 J 0.161 J 1.25 JD 0.137 J 0.140 J <0.110 0.125 J 0.135 J 0.110 5.5 02/22/17 05/30/17 0.448 J 0.815 J 0.111 J 3.92 JD 0.781 J 0.661 J 0.305 J 0.354 J 0.353 J 0.110/0.550 5.5 08/22/17 11/14/17 0.256 J 0.457 J 0.260 J <0.110 0.313 J 0.331 J 0.159 J 0.204 J 0.277 J 0.110 5.5 02/18/18 05/14/18 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 0.550 5.5 08/24/18 11/12/18 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 0.550 5.0 02/14/19 05/20/19 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 08/27/19 11/19/19 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 02/24/20 05/19/20 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 08/18/20 11/16/20 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 02/16/21 05/19/21 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 11/23/21 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 05/23/22 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0 11/07/22 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 0.260 1.0 05/02/23 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 0.260 1.0 11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 10.0 CLIENT: THE COUNTY OF ORANGE MW-24MW-15 MW-16 HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS PROJECT: GROUNDWATER MONITORING PROGRAM MDL MRL QA/QCMW-21D MW-21S MW-22ConstituentSample Date MW-17 MW-20 FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-23 LOCATION: CHAPEL HILL, NORTH CAROLINA MW-21D2 MW-301 tin 04/17/90 MCL = ♦07/11/91 FBAC = 5.32 05/28/92 NCGQS = 2,000 (2L Std)06/30/93 GWPS = 2,100 (pre-Oct. 2010)11/04/94 GWPS = 2,000 (Oct. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 06/05/01 11/13/01 06/04/02 03/12/03 06/18/03 12/08/03 06/22/04 10/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 12/12/07 03/06/08 06/12/08 11/05/08 05/19/09 1.1 J 3.1 J <1.1 1.1 100 11/18/09 06/21/10 5.32 J <2.1 <2.1 <2.1 3.6 J <2.1 2.1 100 11/18/10 <2.1 3.94 J <2.1 <2.1 3.19 J <2.1 2.1 100 05/23/11 2.1 J 4.74 J <2.1 2.1 100 11/15/11 06/05/12 2.97 J <2.1 <2.1 5.26 J <2.1 2.1 100 11/12/12 05/13/13 <2.1 <2.1 <2.1 4.66 J 3.22 J 2.1 100 i 11/11/13 05/12/14 <2.1 <2.1 <2.1 2.1 100 i 11/11/14 02/23/15 05/12/15 <2.40 <2.40 <2.40 2.40 100 08/24/15 11/10/15 <2.40 <2.40 <2.40 2.40 100 02/22/16 05/19/16 <2.40 <2.40 <2.40 2.40 100 08/23/16 11/16/16 02/22/17 05/30/17 <2.40 <2.40 <2.40 2.40 100 08/22/17 11/14/17 02/18/18 05/14/18 <2.40 <2.40 <2.40 2.40 100 08/24/18 11/12/18 02/14/19 05/20/19 3.88 J <2.90 <2.90 2.90 10 08/27/19 11/19/19 02/24/20 05/19/20 <2.90 <2.90 <2.90 2.90 10 08/18/20 11/16/20 02/16/21 05/19/21 <2.90 <2.90 <2.90 2.90 10 11/23/21 05/23/22 <2.90 <2.90 <2.90 2.90 10 11/07/22 5/2/234 <11 <11 <11 11 50 11/20/23 MRL QA/QC CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS Constituent Sample Date MW-1 MW-4 MW-5 MW-6 MW-6R MW-7 MW-7R MW-13 MW-14A MW-14B MDL PROJECT: GROUNDWATER MONITORING PROGRAM tin 04/17/90 MCL = ♦07/11/91 FBAC = 5.32 05/28/92 NCGQS = 2,000 (2L Std)06/30/93 GWPS = 2,100 (pre-Oct. 2010)11/04/94 GWPS = 2,000 (Oct. 2010)12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 02/25/97 09/03/97 05/04/98 11/02/98 04/26/99 11/22/99 05/23/00 11/29/00 06/05/01 11/13/01 06/04/02 03/12/03 06/18/03 12/08/03 06/22/04 10/30/04 06/01/05 11/02/05 05/22/06 11/27/06 06/12/07 12/12/07 03/06/08 06/12/08 11/05/08 05/19/09 <1.1 <1.1 <1.1 2.2 J 1.1 100 11/18/09 06/21/10 2.42 J <2.1 <2.1 <2.1 4.61 J 4.76 J <2.1 <2.1 <2.1 2.1 100 11/18/10 2.52 J <2.1 4.04 J 2.23 J 3.42 J 3.11 J 3.46 J 3.68 J 2.62 J 2.1 100 05/23/11 2.71 J <2.1 2.81 J 2.33 J 2.1 100 11/15/11 06/05/12 4.65 J <2.1 4.17 J 4.44 J 2.1 100 11/12/12 05/13/13 3.36 J 3.68 JB <2.1 3.17 J 3.13 J 3.27 J 2.1 100 i 11/11/13 05/13/13 <2.1 <2.1 <2.1 <2.1 <2.1 <2.1 2.1 100 11/11/14 02/23/15 05/12/15 <2.40 <2.40 <2.40 <2.40 <2.40 <2.40 2.40 100 08/24/15 11/10/15 <2.40 <2.40 <2.40 <2.40 <2.40 <2.40 2.40 100 02/22/16 05/19/16 <2.40 <2.40 <2.40 <2.40 <2.40 <2.40 2.40 100 08/23/16 11/16/16 02/22/17 05/30/17 <2.40 <2.40 <2.40 <2.40 <2.40 <2.40 2.40 100 08/22/17 11/14/17 02/18/18 05/14/18 <2.40 <2.40 <2.40 <2.40 <2.40 <2.40 2.40 100 08/24/18 11/12/18 02/14/19 05/20/19 <2.90 <2.90 <2.90 <2.90 2.90 10 08/27/19 11/19/19 02/24/20 05/19/20 <2.90 <2.90 <2.90 <2.90 2.90 10 08/18/20 11/16/20 02/16/21 05/19/21 <2.90 <2.90 <2.90 <2.90 2.90 10 11/23/21 05/23/22 <2.90 <2.90 <2.90 <2.90 2.90 10 11/07/22 05/02/23 <11 <11 <11 <11 11 50 11/20/23 Constituent Sample Date MW-15 CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-20 MW-21D HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS MW-16 MW-17 LOCATION: CHAPEL HILL, NORTH CAROLINA MW-21S MW-22 MW-23 MW-24 MDL MRL QA/QC PROJECT: GROUNDWATER MONITORING PROGRAM MW-21D2 MW-301 vanadium 04/17/90 MCL = ♦07/11/91 FBAC = 6.968 05/28/92 NCGQS = 0.3 (2L Std)06/30/93 GWPS = 3.5 (pre-Oct. 2010)11/04/94 <40 <40 <40 <40 <40 <40 GWPS = 0.3 (Oct. 2010)12/20/94 <40 <40 <40 <40 <40 <40 02/02/95 <40 <40 <40 <40 <40 <40 03/13/95 <40 <40 <40 <40 <40 <40 <40 <40 11/15/95 <40 <40 <40 <40 63 <40 <40 <40 07/25/96 <40 <40 <40 <40 <40 <40 t,sd 02/25/97 <40 <40 <40 <40 110 <40 <40 <40 09/03/97 <40 <40 <40 <40 <40 05/04/98 <40 <40 <40 <40 <40 <40 <40 <40 11/02/98 <40 <40 <40 <40 <40 04/26/99 <40 <40 <40 <40 <40 11/22/99 <40 <40 <40 <40 <40 05/23/00 <40 <40 <40 <40 <40 <40 <40 <40 11/29/00 <40 <40 <40 <40 <40 06/05/01 <40 <40 <40 <40 <40 <40 <40 <40 11/13/01 <40 <40 <40 06/04/02 <40 <40 <40 03/12/03 <40 <40 <40 <40 06/18/03 <40 <40 <40 <40 <40 12/08/03 <40 <40 <40 06/22/04 <40 <40 <40 10/30/04 <40 <40 <40 06/01/05 <40 <40 <40 11/02/05 <40 <40 <40 05/22/06 <40 <40 <40 11/27/06 <40 <40 <40 06/12/07 1.5 J 42.8 <0.4 <0.4 0.4 25 12/12/07 <0.4 <0.4 3 J 0.4 25 03/06/08 5.5 J 0.4 25 06/12/08 2.1 JB 5.2 J 5 J <0.4 <0.4 5.7 J 0.4 25 t, i 09/20/08 0.4 25 11/05/08 1.2 JB 2.4 JB 5.8 JB <0.4 <0.4 2.8 JB 0.4 25 f 05/19/09 2.9 J <0.7 1.5 J <0.7 <0.7 1 J 0.7 25 11/18/09 2.24 J <1.4 <1.4 <1.4 <1.4 <1.4 1.4 25 06/21/10 22.3 J 1.82 J 7.11 J <1.4 <1.4 <1.4 1.4 25 11/18/10 7.64 J <1.4 <1.4 <1.4 <1.4 <1.4 1.4 25 05/23/11 6.8 J 2.44 J <1.4 <1.4 <1.4 <1.4 1.4 25 11/15/11 3.23 J <1.4 <1.4 <1.4 <1.4 1.4 25 06/05/12 10.4 J <1.4 <1.4 <1.4 <1.4 1.4 25 11/12/12 1.76 J <1.4 <1.4 <1.4 <1.4 1.4 25 05/13/13 1.81 J <1.4 <1.4 <1.4 2.62 J 1.4 25 i 11/11/13 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 05/12/14 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 11/11/14 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 02/23/15 05/12/15 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 08/24/15 11/10/15 1.60 J <1.40 <1.40 <1.40 <1.40 1.40 25 02/22/16 05/19/16 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 08/23/16 11/16/16 1.58 J <1.40 <1.40 <1.40 <1.40 1.40 25 02/22/17 05/30/17 <1.40 <1.40 <1.40 <1.40 2.33 J 1.40 25 08/22/17 11/14/17 <1.40 <1.40 <1.40 <1.40 3.59 J 1.40 25 02/18/18 05/14/18 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 FBAC = MRL (05-29-18)08/24/18 11/12/18 1.72 J <1.40 <1.40 2.17 J <1.40 1.40 10 02/14/19 05/20/19 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 07/10/19 1.40 10 verification 08/27/19 11/19/19 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 02/24/20 05/19/20 <1.40 <1.40 <1.40 6.75 J <1.40 1.40 10 08/18/20 11/16/20 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 02/16/21 05/19/21 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 11/23/21 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 05/23/22 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10 11/07/22 1.2 J <1.0 <1.0 <1.0 3.5 J <1.0 1.00 10 05/02/23 1.3 J <1.0 <1.0 <1.0 1.7 J 1.00 10 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 MW-6R MW-14A MW-14BMW-13 INORGANIC CONSTITUENTS: TOTAL METALS HISTORY OF CHEMICAL ANALYSIS MDL MRL LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE Constituent Sample Date MW-1 MW-4 MW-5 MW-6 MW-7RMW-7 QA/QC vanadium 04/17/90 MCL = ♦07/11/91 FBAC = 6.968 05/28/92 NCGQS = 0.3 (2L Std)06/30/93 GWPS = 3.5 (pre-Oct. 2010)11/04/94 <40 <40 <40 <40 GWPS = 0.3 (Oct. 2010)12/20/94 <40 <40 <40 <40 02/02/95 <40 <40 <40 <40 03/13/95 <40 <40 <40 <40 11/15/95 <40 <40 <40 <40 07/25/96 <40 <40 <40 <40 t,sd 02/25/97 <40 <40 <40 <40 09/03/97 <40 <40 <40 <40 05/04/98 <40 <40 <40 <40 11/02/98 <40 <40 <40 <40 04/26/99 <40 <40 <40 <40 11/22/99 <40 <40 <40 <40 05/23/00 <40 <40 <40 <40 <40 <40 <40 11/29/00 <40 <40 <40 <40 <40 <40 <40 06/05/01 <40 <40 <40 <40 <40 <40 <40 11/13/01 <40 <40 <40 57 <40 <40 <40 06/04/02 <40 <40 <40 50 <40 <40 <40 03/12/03 <40 <40 <40 52 <40 <40 <40 06/18/03 <40 <40 <40 <40 <40 <40 <40 12/08/03 <40 <40 <40 41 <40 <40 <40 06/22/04 <40 <40 <40 <40 <40 <40 <40 10/30/04 <40 <40 <40 <40 <40 <40 <40 06/01/05 <40 <40 <40 <40 <40 <40 <40 11/02/05 <40 <40 <40 <40 <40 <40 <40 05/22/06 <40 <40 <40 <40 <40 <40 <40 11/27/06 <40 <40 <40 <40 <40 <40 <40 06/12/07 <0.4 <0.4 <0.4 <0.4 1 J 0.8 J 0.6 J 83.4 R 0.4 25 12/12/07 <0.4 <0.4 <0.4 15.4 J <0.4 <0.4 <0.4 0.4 25 03/06/08 0.4 25 06/12/08 1.5 JB 1.4 JB 1 JB 18.8 J 1.7 JB 1.9 JB 3.3 JB 1.3 JB 85.7 R 0.4 25 t, i 09/20/08 3.8 J 0.4 25 11/05/08 <0.4 <0.4 <0.4 13.1 JB <0.4 <0.4 6.8 JB 1.3 JB 2.2 JB 0.4 25 f 05/19/09 <0.7 1.3 J <0.7 <0.7 2.1 J 9.6 J 1.2 J 2.6 J 2.8 J 0.7 25 11/18/09 <1.4 <1.4 <1.4 2.84 J <1.4 15.4 J <1.4 2.53 J 9.66 J 1.4 25 06/21/10 <1.4 <1.4 <1.4 <1.4 <1.4 8.92 J <1.4 4.09 J 2.72 J 1.4 25 11/18/10 <1.4 <1.4 <1.4 <1.4 <1.4 4.2 J <1.4 1.81 J 2.8 J 1.4 25 05/23/11 <1.4 <1.4 <1.4 1.62 J <1.4 9.97 J <1.4 2.04 J <1.4 1.4 25 11/15/11 <1.4 <1.4 <1.4 <1.4 2.03 J 6.3 J <1.4 <1.4 <1.4 1.4 25 06/05/12 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 1.66 J 2.29 J 1.4 25 11/12/12 <1.4 <1.4 <1.4 <1.4 <1.4 1.93 J <1.4 <1.4 2.07 J 1.4 25 05/13/13 <1.4 <1.4 <1.4 10.3 J <1.4 <1.4 <1.4 <1.4 3.62 J 1.4 25 i 11/11/13 <1.40 <1.40 <1.40 5.09 J <1.40 <1.40 <1.40 <1.40 2.68 J 1.40 25 05/12/14 <1.40 2.39 J <1.40 <1.40 <1.40 1.85 J <1.40 2.25 J 1.80 J 1.40 25 11/11/14 <1.40 <1.40 <1.40 <2.80 <1.40 <1.40 <1.40 <1.40 <1.40 1.40/2.80 25 02/23/15 05/12/15 <1.40 1.81 J <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 08/24/15 11/10/15 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 02/22/16 05/19/16 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 08/23/16 11/16/16 <1.40 <1.40 <1.40 1.96 J <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 02/22/17 05/30/17 <1.40 <1.40 <1.40 5.14 J <1.40 <1.40 <1.40 <1.40 1.77 J 1.40 25 08/22/17 11/14/17 <1.40 <1.40 <1.40 11.8 J <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 02/18/18 05/14/18 <1.40 2.06 J <1.40 5.61 J <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25 08/24/18 11/12/18 <1.40 <1.40 <1.40 17.2 JD <1.40 <1.40 <1.40 <1.40 <1.40 1.4; 7.0 10; 50 02/14/19 05/20/19 <1.40 <1.40 <1.40 18.4 R <1.40 <1.40 <1.40 <1.40 <1.40 1.4 10 R - unreliable 07/10/19 <1.40 1.40 10 verification 08/27/19 11/19/19 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.47 J 1.4 10 02/24/20 05/19/20 <1.40 <1.40 <1.40 45.5 <1.40 <1.40 <1.40 <1.40 1.47 J 1.4 10 08/18/20 11/16/20 <1.40 <1.40 <1.40 5.59 J <1.40 <1.40 <1.40 <1.40 <1.40 1.4 10 02/16/21 05/19/21 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.4 10 11/23/21 <1.40 <1.40 <1.40 1.96 J <1.40 <1.40 <1.40 <1.40 <1.40 1.4 10 05/23/22 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.4 10 11/07/22 <1.0 <1.0 <1.0 <1.0 1.2 J 1.5 J <1.0 1.9 J 2.2 J 1.0 10 05/02/23 1.6 J 1.1 J 1.0 J <1.0 <1.0 4.5 J <1.0 <1.0 1.9 J 1.5 J <1.0 1.0 10 11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0 QA/QCMW-20 MW-21D MW-21S MW-22Sample Date MW-15 MRL HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS MW-21D2 MW-24 MDLMW-23MW-16 MW-17Constituent CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MW-301 zinc 04/17/90 <10 49 22 <10 10 MCL = ♦07/11/91 30 70 190 60 70 FBAC = 22.83 05/28/92 <20 <20 25 <20 <20 <20 <20 <20 NCGQS = 1,000 (2L Std)06/30/93 <20 30 248 90 63 <20 24 2L Std = 1,050 (pre- Jan. 2010)11/04/94 <50 <50 71 B <50 58 B 53 B i,f,sd 2L Std = 1,000 (Jan. 2010)12/20/94 <50 70 B 61 B 51 B 52 B <50 i,f 02/02/95 55 B <50 <50.0 <50 <50 65 B i,f 03/13/95 <50 <50 89 B 72 B 53 B <50 <50 <50 i,t,f 11/15/95 <50 <50 139 J 63 B 131 J <50 <50 <50 ms,i 07/25/96 168 B 119 B 95 B 102 B 66 B 80 B i,t,f,ms 02/25/97 87 B 74 B 129 B 76 B 230 B 72 B <50 <50 i,t,f 09/03/97 <50 <50 <50 <50 <50 i,t,f,sd 05/04/98 85 B 424 B 57 B 61 B 92 B <50 <50 <50 f,t 11/02/98 <50 <50 <50 <50 <50 i,t,f,lcs 04/26/99 <50 <50 <50 <50 <50 i 11/22/99 <50 51 B <50 <50 <50 d,i,t,f,q 05/23/00 <50 54 B <50 <50 <50 <50 <50 <50 i,t,f,q 11/29/00 <50 <50 <50 <50 <50 t, f 06/05/01 <50 <50 75 B 73 B <50 <50 <50 i,t,f 11/13/01 51 B <50 <50 ms,t,f 06/04/02 60 B <50 <50 t 03/12/03 60 <50 <50 <50 06/18/03 155 B <50 <50 <50 <50 t 12/08/03 94 <50 <50 06/22/04 105 <50 <50 11/30/04 86 <50 <50 06/01/05 66 J <50 <50 cc 11/02/05 <50 <50 <50 05/22/06 <50 <50 <50 11/27/06 <50 <50 <50 i 06/12/07 28.1 B 134 10.2 B 15.3 B 2.7 10 t, f 12/12/07 20.9 B 13.5 B 12.2 B 2.7 10 i 03/06/08 56.2 2.7 10 06/12/08 <2.7 <2.7 44.5 B <2.7 <2.7 <2.7 2.7 10 i 11/05/08 8.1 JB 12.4 B 19.7 B <2.7 <2.7 <2.7 2.7 10 i 05/19/09 14.2 15.0 35.1 <3.4 4.4 J 12.9 3.4 10 11/18/09 11.1 11.6 26 11 6.98 J 5.5 J 3.8 10 06/21/10 82 9.32 J 99.2 7.19 J 7.49 J 11.9 3.8 10 11/18/10 26.6 4.21 J 32.3 <3.8 8.24 J 5.58 J 3.8 10 05/23/11 27.7 6.55 J 49.2 4.23 J 10.9 <3.8 3.8 10 11/15/11 13.8 40.9 <3.8 7.08 J 7.14 J 3.8 10 06/05/12 45.2 34.7 <3.8 4.01 J 6.92 J 3.8 10 11/12/12 17 12 <3.8 <3.8 7.13 J 3.8 10 05/13/13 8.63 J 58.4 <3.8 11.7 8.99 J 3.8 10 11/11/13 7.24 J 59.5 <3.80 8.98 J 15.9 3.80 10 05/12/14 7.44 J 57.8 <3.80 4.71 J 5.33 J 3.80 10 11/11/14 14.6 46.7 <3.80 6.07 J 4.01 J 3.80 10 02/23/15 05/12/15 9.30 J 42.5 <3.80 4.97 J <3.80 3.80 10 08/24/15 11/10/15 7.09 J 37.4 <3.80 <3.80 <3.80 3.80 10 02/22/16 05/19/16 7.44 J 19.4 <3.80 <3.80 <3.80 3.80 10 08/23/16 11/16/16 7.72 J 20.1 <4.40 4.45 J <4.40 4.40 10 02/22/17 05/30/17 6.74 J 17.0 <4.40 <4.40 <4.40 4.40 10 08/22/17 11/14/17 10.0 18.4 <4.40 <4.40 <4.40 4.40 10 02/18/18 05/14/18 7.37 J 15.8 <4.40 <4.40 <4.40 4.40 10 08/24/18 11/12/18 8.68 J 16.5 <4.40 <4.40 <4.40 4.40 10 02/14/19 05/20/19 8.94 J 16.1 <4.40 <4.40 <4.40 4.40 10 08/27/19 11/19/19 11.7 15.8 4.86 J 5.69 J 183 4.40 10 02/24/20 05/19/20 11.1 8.27 J <4.40 <4.40 <4.40 4.40 10 08/18/20 11/16/20 7.49 J 9.95 J <4.40 <4.40 <4.40 4.40 10 02/16/21 05/19/21 10.3 10.3 <4.40 <4.40 <4.40 4.40 10 11/23/21 9.91 J 11.3 <4.40 <4.40 <4.40 4.40 10 05/23/22 9.03 J 7.46 J <4.40 4.66 J <4.40 4.40 10 11/07/22 11 J 11 J <8.7 <8.7 <8.7 8.70 20 05/02/23 <8.7 13 J <8.7 <8.7 <8.7 8.70 20 11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 10.0 MW-7R MDL MRLMW-7 MW-13 MW-14A MW-14B QA/QCMW-6RConstituentSample Date MW-1 MW-4 MW-5 MW-6 INORGANIC CONSTITUENTS: TOTAL METALS HISTORY OF CHEMICAL ANALYSIS PROJECT: GROUNDWATER MONITORING PROGRAM LOCATION: CHAPEL HILL, NORTH CAROLINA FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY CLIENT: THE COUNTY OF ORANGE zinc 04/17/90 <10 <10 MCL = ♦07/11/91 <20 30 FBAC = 22.83 05/28/92 <20 <20 <20 NCGQS = 1,000 (2L Std)06/30/93 21 <20 <20 2L Std = 1,050 (pre- Jan. 2010)11/04/94 <50 <50 <50 54 B i,f,sd 2L Std = 1,000 (Jan. 2010)12/20/94 <50 <50 <50 <50 i,f 02/02/95 <50 <50 <50 <50 i,f 03/13/95 <50 <50 <50 <50 i,t,f 11/15/95 <50 <50 <50 64 B ms,i 07/25/96 126 B 220 B 153 B 109 B i,t,f,ms 02/25/97 52 B 83 B <50 72 B i,t,f 09/03/97 72 B <50 137 B <50 i,t,f,sd 05/04/98 <50 <50 <50 <50 f,t 11/02/98 <50 <50 <50 <50 i,t,f,lcs 04/26/99 <50 <50 <50 <50 i 11/22/99 <50 <50 <50 61 B d,i,t,f,q 05/23/00 <50 <50 <50 <50 <50 <50 <50 i,tf,q 11/29/00 <50 <50 <50 <50 <50 <50 <50 t, f 06/05/01 <50 <50 53 B 55 B <50 <50 <50 i,t,f 11/13/01 <50 <50 <50 <50 <50 <50 <50 ms,t,f 06/04/02 <50 <50 <50 <50 <50 <50 <50 t 03/12/03 <50 <50 <50 <50 <50 <50 <50 06/18/03 <50 <50 <50 <50 <50 <50 <50 t 12/08/03 <50 <50 <50 <50 <50 <50 <50 06/22/04 <50 <50 <50 <50 <50 <50 <50 11/30/04 <50 <50 <50 <50 <50 <50 <50 06/01/05 <50 <50 <50 <50 <50 <50 <50 cc 11/02/05 <50 <50 <50 <50 <50 <50 <50 05/22/06 <50 <50 <50 <50 <50 <50 <50 11/27/06 <50 <50 <50 <50 <50 <50 <50 i 06/12/07 9.8 JB 20.5 B 17.6 B 35.5 B 9.1 JB 12.7 B 11.7 B 72.1 2.7 10 t, f 12/12/07 9 JB 16.5 B 11.1 B 17 B 20.2 B 13.3 B 24.6 B 2.7 10 i 03/06/08 2.7 10 06/12/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 50.7 B 2.7 10 i 11/05/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 10.9 B 2.7 10 i 05/19/09 <3.4 <3.4 <3.4 18.5 <3.4 3.4 J <3.4 <3.4 <3.4 3.4 10 11/18/09 <3.8 4.17 J <3.8 32.1 <3.8 5.93 J <3.8 <3.8 <3.8 3.8 10 06/21/10 <3.8 <3.8 <3.8 9.61 J 6.33 J 11.2 <3.8 17.8 24.2 3.8 10 11/18/10 <3.8 <3.8 13 21.2 <3.8 <3.8 <3.8 <3.8 5.08 J 3.8 10 05/23/11 <3.8 <3.8 <3.8 <3.8 <3.8 7.67 J <3.8 <3.8 4.88 J 3.8 10 11/15/11 <3.8 <3.8 <3.8 22.4 <3.8 5.07 J <3.8 <3.8 <3.8 3.8 10 06/05/12 <3.8 <3.8 <3.8 26.4 <3.8 <3.8 <3.8 <3.8 <3.8 3.8 10 11/12/12 <3.8 <3.8 <3.8 32.8 JD <3.8 <3.8 <3.8 <3.8 <3.8 3.8 10 05/13/13 4.32 J <3.8 <3.8 14 <3.8 <3.8 <3.8 <3.8 <3.8 3.8 10 11/11/13 <3.80 <3.80 <3.80 20.4 <3.80 49.2 <3.80 <3.80 4.06 J 3.80 10 05/12/14 <3.80 <3.80 <3.80 10.8 <3.80 <3.80 <3.80 <3.80 <3.80 3.80 10 11/11/14 5.60 J <3.80 5.75 J <7.60 <3.80 4.36 J <3.80 5.08 J 4.13 J 3.80/7.60 10 02/23/15 05/12/15 <3.80 4.40 J <3.80 <3.80 5.74 J 6.20 J <3.80 <3.80 <3.80 3.80 10 08/24/15 11/10/15 4.72 J <3.80 <3.80 6.78 J <3.80 <3.80 <3.80 <3.80 <3.80 3.80 10 02/22/16 05/19/16 <3.80 <3.80 <3.80 <3.80 <3.80 <3.80 <3.80 <3.80 <3.80 3.80 10 08/23/16 11/16/16 <4.40 <4.40 <4.40 <4.40 7.62 J <4.40 <4.40 <4.40 <4.40 4.40 10 02/22/17 05/30/17 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 08/22/17 11/14/17 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 02/18/18 05/14/18 6.69 J <4.40 <4.40 5.84 J <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 08/24/18 11/12/18 <4.40 <4.40 <4.40 <22.0 D <4.40 <4.40 <4.40 <4.40 <4.40 4.4; 22 10; 50 02/14/19 05/20/19 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 08/27/19 11/19/19 5.29 J <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 4.62 J 4.40 10 02/24/20 05/19/20 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 08/18/20 05/19/20 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 02/16/21 05/19/21 <4.40 4.82 J <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 11/23/21 <4.40 <4.40 5.92 J <4.40 <4.40 <4.40 <4.40 12.9 <4.40 4.40 10 05/23/22 <4.40 <4.40 <4.40 8.62 J <4.40 <4.40 <4.40 <4.40 <4.40 4.40 10 11/07/22 <8.7 <8.7 <8.7 14 J <8.7 <8.7 <8.7 <8.7 <8.7 8.70 20 05/02/23 180 <8.7 <8.7 <8.7 <8.7 <8.7 <8.7 <8.7 <8.7 <8.7 <8.7 8.70 20 11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 10.0 MW-24MW-23Sample Date MW-15 MW-16 MW-17 MW-21SConstituent QA/QC CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM MW-20 MW-21D HISTORY OF CHEMICAL ANALYSIS MDL MRLMW-22 INORGANIC CONSTITUENTS: TOTAL METALS MW-21D2 MW-301 sulfide ♠04/17/90 MCL = ♦07/11/91 FBAC = MRL 05/28/92 NCGQS = ♦06/30/93 11/04/94 12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 <196 <196 02/25/97 <196 980 J <196 588 J <196 <196 ms,d 09/03/97 1190 B 990 B <196 792 B <196 f,t 05/04/98 1600 <200 <200 400 <200 <200 11/02/98 200 J 3000 J <200 <200 <200 d 04/26/99 <200 <200 <200 <200 d 11/22/99 1160 J 1360 J 388 J 388 J 388 J d 05/23/00 <200 <200 558 <200 <200 11/29/00 576 768 <200 <200 <200 06/05/01 970 J 388 J <200 970 J 9700 J ms,d,lcs 11/13/01 06/04/02 <200 <200 <200 ms,lcs 03/12/03 600 J 400 J <200 2200 J ms 06/18/03 368 J 368 J 1290 J <200 3130 J ms,md 12/08/03 <200 <200 540 06/22/04 <200 <200 <200 10/30/04 <200 <200 <200 06/01/05 <200 <200 <200 11/02/05 380 <200 6460 05/22/06 768 2690 10200 11/27/06 <200 <200 <200 06/12/07 <200 <200 <200 <200 200 100012/12/07 <200 <200 3610 200 100003/06/08 736 J 200 1000 06/12/08 <200 <200 <200 <200 200 1000 11/05/08 <200 <200 <200 <200 970 J 200 1000 05/19/09 <100 <100 100 1000 11/18/09 <31 <31 <31 <31 <31 <31 31 1000 06/21/10 <31 <31 <31 <31 <31 36 J 31 1000 11/18/10 <10 <10 <10 <10 <10 <10 10 1000 05/23/11 <10 <10 <10 <10 <10 <10 10 1000 11/15/11 <10 <10 <10 <10 <10 10 1000 06/05/12 <10 <10 <10 <10 <10 10 1000 11/12/12 <10 <10 <10 <10 <10 10 1000 05/13/13 <10 <10 <10 <10 <10 10 1000 11/11/13 <10 <10 <10 <10 <10 10 1000 05/12/14 <10 <10 <10 <10 <10 10 1000 11/11/14 <10 <10 <10 <10 <10 10 1000 02/23/15 05/12/15 <10 <10 <10 <10 <10 10 1000 08/24/15 11/10/15 <10 <10 <10 <10 10 J 10 1000 02/22/16 05/19/16 <10 <10 <10 <10 <10 10 1000 08/23/16 11/16/16 <10 <10 <10 <10 <10 10 1000 02/22/17 05/30/17 <10 <10 <10 <10 <10 10 1000 08/22/17 11/14/17 <10 <10 <10 <10 <10 10 1000 02/18/18 05/14/18 <10 <10 <10 <10 10 1000 08/24/18 11/12/18 <10 <10 <10 <10 10 100 02/14/19 05/20/19 <10 <10 <10 <10 10 100 08/27/19 11/19/19 <10 <10 <10 <10 10 100 02/24/20 05/19/20 <10 <10 <10 <10 10 100 08/18/20 11/16/20 <10 <10 <10 <10 <10 10 100 02/16/21 05/19/21 <10 <10 <10 <10 <10 10 100 11/23/21 <10 <10 <10 <10 <10 10 100 05/23/22 <10 <10 <10 <10 <10 10 100 11/07/22 <890 <890 <890 9500 <890 890 890 05/02/23 <810 <810 <810 810 810 11/20/23 <100 <100 <100 <100 <100 100 MW-6R MDLMW-4 MW-14A MW-14B QA/QC HISTORY OF CHEMICAL ANALYSIS MW-6 MW-7 MW-13MW-7R CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM INORGANIC CONSTITUENTS: TOTAL METALS MW-5Sample DateConstituent MRLMW-1 sulfide ♠04/17/90 MCL = ♦07/11/91 FBAC = MRL 05/28/92 NCGQS = ♦06/30/93 11/04/94 12/20/94 02/02/95 03/13/95 11/15/95 07/25/96 <196 <196 02/25/97 <196 <196 <196 3140 J ms,d 09/03/97 <196 2180 B 792 B 3760 B f,t 05/04/98 <200 <200 <200 14400 11/02/98 <200 <200 <200 2800 J d 04/26/99 <200 588 <200 21200 d 11/22/99 <200 <200 <200 12400 J d 05/23/00 <200 <200 372 22300 372 <200 <200 11/29/00 <200 <200 <200 1540 <200 384 <200 06/05/01 388 J 388 J <200 20200 J 582 J <200 <200 ms,d,lcs 11/13/01 06/04/02 <200 860 J <200 15200 J 570 J <200 960 J ms,lcs 03/12/03 <200 <200 <200 24800 J <200 600 J 400 J ms 06/18/03 <200 736 J <200 14200 J 736 J <200 920 J ms, md 12/08/03 <200 540 <200 23000 360 360 360 06/22/04 <200 352 <200 12700 <200 <200 <200 10/30/04 <200 <200 <200 23800 <200 <200 <200 06/01/05 <200 <200 <200 24500 564 <200 <200 11/02/05 <200 <200 34200 26600 570 760 570 05/22/06 <200 576 <200 26100 <200 576 <200 11/27/06 <200 <200 <200 313 <200 <200 <200 06/12/07 <200 <200 <200 28600 <200 <200 <200 <200 200 100012/12/07 <200 <200 <200 26100 <200 <200 <200 200 100003/06/08 200 1000 06/12/08 <200 <200 <200 25200 <200 <200 <200 <200 200 1000 11/05/08 <200 582 J <200 14700 <200 <200 2330 <200 <200 200 1000 05/19/09 <100 <100 <100 <100 100 1000 11/18/09 <31 <31 <31 <31 <31 <31 <31 <31 <31 31 1000 06/21/10 <31 <31 <31 <31 <31 <31 <31 <31 <31 31 1000 11/18/10 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 05/23/11 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 11/15/11 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 06/05/12 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 11/12/12 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 05/13/13 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 11/11/13 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 05/12/14 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 11/11/14 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 02/23/15 05/12/15 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 08/24/15 11/10/15 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 02/22/16 05/19/16 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 08/23/16 11/16/16 <10 <10 <10 13 J <10 <10 <10 <10 <10 10 1000 02/22/17 05/30/17 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 08/22/17 11/14/17 <10 <10 <10 15 J <10 <10 <10 <10 <10 10 1000 02/18/18 05/14/18 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 1000 08/24/18 11/12/18 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 02/14/19 05/20/19 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 08/27/19 11/19/19 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 02/24/20 05/19/20 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 08/18/20 11/16/20 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 02/16/21 05/19/21 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 11/23/21 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 05/23/22 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 100 11/07/22 7900 <890 <890 9500 <890 <890 <890 <890 <890 890 890 05/02/23 <830 <930 <1300 <1300 <1300 1300 3000 11/20/23 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 100 MW-24 HISTORY OF CHEMICAL ANALYSIS MW-23 INORGANIC CONSTITUENTS: TOTAL METALS CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM Constituent MW-15 MW-16 MDL MRLMW-17 MW-22Sample Date QA/QCMW-20 MW-21D MW-21SMW-21D2 MW-301 All results in µg/L Upgradient wells not shaded. Shaded cells indicate data not available. Blue bolded cells indicate concentrations that exceeded the FBAC. Red bolded cells indicate concentrations that exceeded the NCGQS. Green bolded cells indicate concentrations that were >MDL but <MRL. i - found in instrument blank t – found in trip blank f - found in field blank ic - initial calibration beyond limits cc – continuing calibration beyond limits md - matrix spike duplicates beyond limits ms – matrix spike beyond limits d - duplicate results beyond limits ss – surrogate spikes beyond limits is - internal standard beyond limits lcs - laboratory control sample beyond limits R - concentration deemed unreliable B – concentration attributed to cross-contamination J - concentration deemed estimated JD - MDL & MRL elevated due to matrix interference; concentration deemed estimated ♠ - additional Appendix 2 constituent D - analyzed at dilution ♦ - limits not established FBAC - facility background NCGQS – groundwater standard, as established by NCDEQ GWPS - groundwater protection standard SPL – statistical prediction limit SWSL eliminated in 2019 and replaced with Method Reporting Limit HISTORY OF CHEMICAL ANALYSIS INORGANIC CONSTITUENTS: TOTAL METALS LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY MW-21D2 and MW-301 were installed November 2022 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 6: Byproducts of Groundwater Remediation - Graphs 0 100 200 300 400 500 600 700 Manganese Concentration (µg/L)Date Current and Historic Manganese Concentrations -North Facility MW-21S MW-21D MW-23 MW-24 NC 2L Standard Manganese not collected Nov 2023 0 200 400 600 800 1000 1200 1400 1600 1800 Potassium Concentration (µg/L)Date Current and Historic Potassium Concentrations -North Facility MW-21S MW-21D MW-23 MW-24 Potassium not collected Nov 2023 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 6: Byproducts of Groundwater Remediation - Tables carbon dioxide 03/22/11 55,500 29,100 9,070 16,300 2,000 MCL = ♦05/23/11 130,000 95,900 343,000 65,100 1,300 FBAC = ♦08/23/11 207,000 131,000 92,200 74,400 1,300 NCGQS = ♦11/15/11 204,000 123,000 114,000 89,800 1,300 06/05/12 195,000 70,900 34,200 78,600 270 11/12/12 05/13/13 212,000 112,000 46,700 87,800 690 11/11/13 203,000 109,000 87,600 75,500 690 02/10/14 189,000 116,000 60,800 71,100 690/6,900 05/12/14 122,000 86,800 56,100 77,600 690 08/18/14 151,000 104,000 127,000 70,500 210/1,050 11/11/14 215,000 150,000 178,000 91,300 210/440 02/23/15 177,000 145,000 110,000 53,300 210 05/12/15 152,000 B 85600 B 96,300 B 89,600 B 210 08/24/15 255,000 109,000 151,000 84,900 210/1,050 11/10/15 300,000 168,000 170,000 84,000 210/1,050 02/22/16 172,000 171,000 149,000 94,100 210/1,050 05/19/16 133,000 110,000 75,700 73,100 210 08/23/16 150,000 75,500 112,000 79,700 660 11/16/16 170,000 D 122,000 141,000 65,100 660/6,600 02/22/17 170,000 D 162,000 124,000 71,800 660/6,600 05/30/17 145,000 D 161,000 145,000 81,000 660/6,600 08/22/17 163,000 D 177,000 121,000 D 89,100 660/3,300 11/14/17 274,000 D 151,000 200,000 D 104,000 660/3,300 02/18/18 181,000 D 168,000 193000 D 101,000 660/6,600 05/14/18 158,000 D 170,000 165,000 89,200 770/1,620 08/24/18 221,000 D 153,000 16,300 D 136,000 770/2,500 11/12/18 111,000 D 124,000 176,000 91,500 770/2,500 02/14/19 176,000 148,000 152,000 94,100 2,500 05/20/19 161,000 D 163,000 154,000 123,000 2,500 08/27/19 165,000 D 154,000 126,000 D 99,100 770/1,620 11/19/19 124,000 89,800 142,000 62,000 770 02/24/20 146,000 73,000 142,000 64,700 1,800 05/19/20 99,700 78,000 65,100 46,200 2,500 08/18/20 11/16/20 134,000 120,000 <2,070 27,300 2,070 02/16/21 80,400 19,200 77,800 <2,070 2,070 05/17/21 87,600 69,300 72,000 50,800 2,070 11/23/21 158,000 80,100 116,000 65,100 2,070 05/23/22 136,000 84,600 94,600 57,800 2,070 11/07/22 190,000 99,000 170,000 65,000 5,000 05/02/23 84,000 82,000 81,000 53,000 2,600 11/20/23 chloride 03/22/11 44,000 50,000 58,000 56,000 1,900 MCL = ♦05/23/11 44,000 39,000 56,000 48,000 94 FBAC = ♦08/23/11 47,000 39,000 80,000 51,000 1,900 NCGQS = 250000 (2L Std)11/15/11 42,000 41,000 80,000 53,000 1,900 06/05/12 53,000 38,000 76,000 54,000 430 11/12/12 50,000 37,000 81,000 60,000 1,900 05/13/13 61,000 46,000 78,000 62,000 1,900 11/11/13 66,000 52,000 100,000 64,000 2,200 02/10/14 61,000 52,000 89,000 62,000 1,900 05/12/14 57,000 53,000 93,000 65,000 1,900 08/18/14 69,000 59,000 110,000 67,00 1,900 11/11/14 70,000 59,000 110,000 66,000 1,900 02/23/15 62,000 56,000 100,000 68,000 1,900 05/12/15 65,000 59,000 110,000 72,000 1,900 08/24/15 73,000 62,000 120,000 72,000 1,900 11/10/15 70,000 63,000 130,000 74,000 1,900 02/22/16 63,000 61,000 110,000 79,000 1,900 05/19/16 96,000 68,000 76,000 3,000 1,900 08/23/16 75,000 66,000 110,000 78,000 1,900 11/16/16 71,000 64,000 110,000 73,000 1,900 02/22/17 78,000 63,000 120,000 D 84,000 2,200/4,400 05/30/17 70,000 72,000 110,000 80,000 1,900 08/22/17 35,000 65,000 130,000 D 81,000 2,200/4,400 11/14/17 72,000 68,000 130,000 78,000 1,900 02/18/18 62,000 64,000 130,000 D 87,000 2,200/4,400 05/14/18 72,000 62,000 2,200 08/24/18 78,000 63,000 140,000 97,000 2,200/5,000 11/12/18 75,000 71,000 2,200/5,000 02/14/19 67,000 65,000 110,000 94,000 5,000 05/20/19 68,000 67,000 99,000 95,000 5,000 08/27/19 82,000 70,000 110,000 92,000 1,900 11/19/19 71,000 68,000 120,000 D 88,000 2,200 02/24/20 75,000 59,000 120,000 90,000 1,900 05/19/20 77,000 64,000 120,000 D 90,000 2,200 08/18/20 86,000 67,000 120,000 89,000 1,900 11/16/20 79,000 69,000 140,000 D 93,000 2,200/4,400 02/16/21 71,000 70,000 110,000 96,000 1,900 05/17/21 79,000 D 72,000 D 100,000 D 110,000 D 4,400 11/23/21 86,000 76,000 130000 D 91000 D 4,400 05/23/22 83,000 75,000 120,000 96,000 4,400 11/07/22 81,000 74,000 140,000 93,000 2,200/4,400 05/03/23 73,000 71,000 130,000 110,000 2000/5000 11/20/23 MW-21D MW-21S MW-23 MW-24ConstituentSample Date LOD BYPRODUCTS OF GROUNDWATER REMEDIATION CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS MW-21D MW-21S MW-23 MW-24ConstituentSample Date LOD BYPRODUCTS OF GROUNDWATER REMEDIATION CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS manganese 03/22/11 13.6 J 88.7 19.5 J 184 1.1 MCL = ♦05/23/11 15.6 J 60.8 36.9 J 230 1.1 FBAC = MRL 08/23/11 10.9 J 44.9 J 21.8 J 311 1.1 NCGQS = 50 (2L Std)11/15/11 44 J 22.4 J 97 287 1.1 06/05/12 17.8 J 33.3 J 112 405 1.1 11/12/12 317 11.1 J 267 382 1.1 05/13/13 103 143 50.6 150 1.1 11/11/13 38.4 J 80.7 69.5 89.1 1.10 02/10/14 10.4 19.9 46.3 51.7 1.10 05/12/14 130 101 36.6 J 37.0 J 1.10 08/18/14 12.8 62.9 51.6 28.7 1.10 11/11/14 23.0 J 66.2 53.9 20.5 J 1.10 02/23/15 14.3 J 51.5 29.7 J 37.6 J 1.10 05/12/15 18.7 J 666 70.8 27.6 J 1.10 08/24/15 16.1 45.3 42.1 28.4 1.10 11/10/15 13.7 J B 21.7 J B 40.5 J B 92.1 B 1.10 02/22/16 7.92 J 223 30.0 J 35.2 J 1.10 05/19/16 7.68 J 19.0 J 37.2 J 26.2 J 1.10 08/23/16 7.55 J 40.3 J 29.7 J 59.0 1.10 11/16/16 9.70 J 86.6 41.3 J 42.0 J 1.10 02/22/17 10.1 J 94.1 28.4 J 26.3 J 1.10 05/30/17 7.26 J 20.3 J 32.9 J 20.5 J 1.10 08/22/17 9.19 J 40.1 J 33.6 J 34.7 J 1.10 11/14/17 14.4 J 41.7 J 38.4 J 53.9 1.10 02/18/18 15.2 J 12.3 J 39.9 J 26.4 J 1.10 05/14/18 8.87 J 58.2 39.7 J 24.1 J 1.50 FBAC = MRL (05-29-18)08/24/18 11.1 J 230 32.2 J 58 1.50 11/12/18 6.96 J 37.1 44.0 18.4 1.50 02/14/19 6.16 J 178 25.3 27.5 10.0 05/20/19 12.6 19.4 28.8 14.5 10.0 08/27/19 10.2 28.4 18.1 28.4 1.50 11/19/19 19.3 41.8 33.3 39.7 1.50 02/24/20 9.89 J 177 22.0 15.3 1.50 05/19/20 8.25 J 27.70 35.0 19.8 1.50 08/18/20 12.7 180.0 21.8 21.9 1.50 11/16/20 9.83 J 14.8 31.0 30.1 1.50 02/16/21 7.97 J 70.8 22.4 19.3 1.50 05/17/21 9.92 J 32.3 21.5 22.3 1.50 11/23/21 14.3 64.5 145.0 66.1 1.50 05/23/22 10.6 45.4 45.5 14.9 1.50 11/07/22 13 98 40 31 1.30 05/03/23 470 *24 38 39 1.30 11/20/23 methane 03/22/11 05/23/11 08/23/11 11/15/11 06/05/12 11/12/12 05/13/13 11/11/13 02/10/14 05/12/14 08/18/14 11/11/14 02/23/15 05/12/15 08/24/15 11/10/15 02/22/16 05/19/16 08/23/16 11/16/16 02/22/17 05/30/17 08/22/17 11/14/17 02/18/18 05/14/18 08/24/18 11/12/18 02/14/19 05/20/19 08/27/19 11/19/19 7.37 0.544 J 11.0 1.57 0.45 02/24/20 05/19/20 08/18/20 11/16/20 02/16/21 05/17/21 11/07/22 05/03/23 11/20/23 MW-21D MW-21S MW-23 MW-24ConstituentSample Date LOD BYPRODUCTS OF GROUNDWATER REMEDIATION CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS potassium 03/22/11 709 978 820 778 150 MCL = ♦05/23/11 702 670 528 780 150 FBAC = ♦08/23/11 983 681 687 779 150 NCGQS = ♦11/15/11 691 833 1,300 774 150 06/05/12 770 798 718 872 150 11/12/12 779 869 1,560 833 150 05/13/13 647 665 536 651 150 11/11/13 698 782 814 593 150 02/10/14 735 874 684 762 150 05/12/14 554 607 525 541 150 08/18/14 1,020 1,300 1,150 784 150 11/11/14 900 932 1,150 696 150 02/23/15 873 895 991 855 150 05/12/15 844 833 807 745 150 08/24/15 864 824 1,130 783 150 11/10/15 786 762 1,440 1,060 150 02/22/16 816 772 927 767 150 05/19/16 561 593 576 452 J 150 08/23/16 738 761 920 613 150 11/16/16 794 915 1,220 667 150 02/22/17 850 1,170 982 648 150 05/30/17 733 730 810 628 150 08/22/17 807 933 1,140 600 150 11/14/17 705 819 1,320 554 150 02/18/18 877 902 1,290 673 150 05/14/18 592 921 780 651 150 08/24/18 933 1,320 1,280 822 150 11/12/18 676 813 1,020 653 150 02/14/19 660 769 843 544 500 05/20/19 679 687 902 528 150 08/27/19 825 787 1,190 613 150 11/19/19 997 903 1,590 653 150 02/24/20 786 954 1,070 641 150 05/19/20 590 649 841 450 J 150 08/18/20 833 760 1,320 534 150 11/16/20 584 683 955 390 J 150 02/16/21 452 J 421 J 774 274 J 150 05/17/21 794 752 1,030 617 150 11/23/21 780 875 1,350 552 150 05/23/22 688 657 1,110 534 150 11/07/22 730 J 780 J 1,200 610 J 67 05/03/23 730 J 990 J 950 J 480 J 67 11/20/23 All results in µg/L Shaded cells indicate data not available. Blue bolded cells indicate concentrations that exceeded the FBAC. Red bolded cells indicate concentrations that exceeded the NCGQS. Green bolded cells indicate concentrations that were estimated concentrations B – concentration attributed to cross-contamination * - Elevated manganese attributed to newly installed MW-21D2 (manganese from bentonite impacted MW-21D during well instalation). ♦ - limits not established SWSL eliminated in 2019 and replaced with Method Reporting Limit FBAC - facility background NCGQS – groundwater standard, as established by NCDEQ SWSL - solid waste section limit, as established by NCDEQ MW-21D2 installed November 2022 GWPS - groundwater protection standard Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 6: Indicator Parameters - Graphs 5 5.5 6 6.5 7 7.5 8 pH (SU)Date Current and Historic pH Values -North Facility MW-21D MW-21S MW-23 -400 -300 -200 -100 0 100 200 300 400 500 600 ORP (mV)Date Current and Historic ORP Values -North Facility MW-21D MW-21S MW-23 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 6: Indicator Parameters - Tables pH (standard units)06/22/10 7.06 6.90 7.54 NM 11/19/10 7.15 6.19 6.21 NM 03/23/11 6.03 5.94 7.18 11.90 05/23/11 6.92 6.68 7.12 NM 08/23/11 5.25 5.38 5.32 NM 11/15/11 6.05 6.01 6.87 6.66 6.75 NM 02/21/12 7.00 6.79 6.97 NM 06/05/12 6.95 6.67 6.99 NM 11/12/12 6.96 6.47 6.70 NM 05/13/13 6.55 6.39 6.75 NM 11/11/13 6.17 6.19 7.02 6.71 6.88 6.97 02/10/14 6.79 6.71 7.12 7.10 05/12/14 5.70 6.04 6.48 6.68 6.94 6.98 08/18/14 6.75 5.89 6.56 6.86 11/11/14 6.06 6.09 6.78 6.59 6.74 6.87 02/23/15 6.24 6.48 6.74 6.91 05/12/15 6.80 6.16 7.19 7.08 8.01 7.79 08/24/15 6.72 6.56 6.74 6.86 11/10/15 7.13 7.17 6.92 6.74 6.87 7.03 02/22/16 6.30 6.46 6.94 7.04 05/18/16 6.59 6.59 7.16 7.05 7.24 7.29 08/23/16 6.63 6.39 6.65 6.85 11/16/16 6.26 6.29 6.98 6.80 6.82 7.10 02/22/17 6.56 6.35 6.66 6.91 05/30/17 5.92 5.98 6.67 6.60 6.72 6.94 08/22/17 6.83 6.61 6.93 7.13 11/14/17 6.16 6.16 5.40 6.72 6.73 7.02 02/18/18 6.69 6.47 6.53 6.86 05/14/18 6.05 5.78 6.85 6.60 6.60 6.91 08/24/18 3.61 3.40 3.48 3.72 11/12/18 7.16 7.17 7.79 7.72 7.78 8.05 02/14/19 6.33 6.19 6.33 6.59 05/20/19 6.17 6.22 6.86 6.79 6.85 6.99 08/27/19 6.80 6.64 6.69 6.92 11/19/19 5.95 5.97 6.74 6.54 6.48 6.82 02/24/20 6.76 6.57 6.58 6.88 05/19/20 6.02 6.03 6.66 6.58 6.47 6.70 08/18/20 6.79 6.56 6.63 6.83 11/16/20 6.09 6.07 6.82 6.66 6.69 6.99 05/17/21 6.02 5.97 6.69 6.57 6.63 6.81 11/23/21 6.13 6.28 6.90 6.61 6.68 7.04 05/22/23 6.13 6.11 6.83 6.69 6.75 6.93 11/07/23 5.99 6.00 6.61 6.43 6.42 6.73 05/02/23 6.76 6.60 7.32 7.32 8.42 7.16 7.41 11/20/23 5.86 5.78 6.44 6.52 7.26 6.19 6.46 average = 6.24 6.21 6.66 6.52 7.84 6.71 7.03 standard deviation = 0.40 0.37 0.63 0.59 0.82 0.64 1.04 ORP (mV)06/22/10 37.7 76.6 24.7 NM 11/19/10 41.9 92.5 28.0 NM 03/23/11 228.0 209.0 71.0 106.0 05/23/11 62.1 45.2 14.0 NM 08/23/11 64.0 123.0 76.1 NM 11/15/11 25.7 68.9 124.0 119.4 431.0 NM 02/21/12 87.0 70.0 69.1 NM 06/05/12 66.8 84.4 498.0 NM 11/12/12 52.7 424.0 548.8 NM 05/13/13 151.0 217.0 198.0 NM 11/11/13 11.1 90.0 77.2 134.6 130.6 112.6 02/10/14 123.3 82.0 100.0 104.5 05/12/14 53.0 46.0 69.0 45.0 64.2 51.2 08/18/14 94.2 112.3 106.6 52.5 11/11/14 28.6 83.3 76.0 88.3 135.4 78.6 02/23/15 98.1 66.6 84.7 50.4 05/12/15 47.3 53.3 74.6 62.2 114.8 67.2 08/24/15 19.6 13.0 16.3 7.0 11/10/15 -159.9 -159.0 -118.8 -162.6 -108.3 -128.7 02/22/16 292.1 257.3 173.6 108.6 05/18/16 31.9 52.9 51.1 30.7 39.8 38.4 08/23/16 210.5 224.8 206.9 53.2 11/16/16 -2.7 71 74.2 114.1 143 44.1 02/22/17 148.0 163.0 166 40.6 05/30/17 0.5 35.4 83.4 250.6 100.9 35.6 08/22/17 22.1 5.9 43.1 16.9 11/14/17 12.8 -9.9 54.9 31.9 68.4 27.6 02/18/18 182.5 121.9 359.0 20.8 05/14/18 -390 -395 -85.7 -344 -299 -259 08/24/18 139.9 139 162 62 11/12/18 -3 34 132.8 140 161 88 02/14/19 338 366 336 262 05/20/19 55 120 188 138 182 167 08/27/19 338 366 336 262 11/19/19 30.9 90 249 137 286 209 02/24/20 224 178 206 102 05/19/20 -7.9 61.8 36.3 70.9 126 51.4 08/18/20 163 182 262 58.0 11/16/20 29.0 84.0 108.0 109.0 190 122.0 05/17/21 24.0 87.0 101.0 133.0 137 78.0 11/23/21 8.7 58.0 148.0 124.0 167 130.0 05/23/22 -4.4 56.0 103.0 92.0 41 28.0 11/07/22 -13.0 48.0 97.0 69.0 120 41.0 05/02/23 9.1 -12.4 24.0 25.0 9 10 41.0 11/20/23 8.5 44.0 135.0 179.0 62 111 54.0 average = -9.3 27.6 110.8 115.7 35.5 143.1 66.2 standard deviation = 95.0 109.4 91.5 123.2 37.5 147.1 90.0 INDICATOR PARAMETERS CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS MW-23 MW-24ConstituentSample Date MW-15 MW-16 MW-21S MW-21D MW-21D2 INDICATOR PARAMETERS CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS MW-23 MW-24ConstituentSample Date MW-15 MW-16 MW-21S MW-21D MW-21D2 Temperature (degrees C)06/22/10 15.8 15.0 14.9 NM 11/19/10 16.2 15.1 16.2 NM 03/23/11 12.1 14.6 13.5 11.9 05/23/11 14.2 14.9 14.6 NM 08/23/11 16.3 15.3 16.1 NM 11/15/11 16.8 16.1 16.7 15.4 16.5 NM 02/21/12 13.7 14.8 14.5 NM 06/05/12 15.7 14.9 14.8 NM 11/12/12 16.6 15.4 16.6 NM 05/13/13 13.3 14.8 13.9 NM 11/11/13 16.5 15.8 16.2 15.2 16.3 15.9 02/10/14 12.2 14.3 13.9 13.0 05/12/14 14.9 14.1 13.2 14.8 14.0 14.9 08/18/14 16.3 15.1 15.5 15.9 11/11/14 16.7 15.5 16.5 15.1 16.3 16.0 02/23/15 11.8 14.3 13.5 12.7 05/12/15 14.8 14.3 13.3 14.8 13.9 14.7 08/24/15 16.5 15.1 15.9 16.5 11/10/15 16.5 15.8 16.6 15.2 16.2 16.0 02/22/16 13.0 14.6 14.3 13.6 05/18/16 15.2 14.2 14.3 14.8 14.5 14.6 08/23/16 17.3 15.5 16.1 16.6 11/16/16 16.5 15.9 16.7 15.0 16.5 16.1 02/22/17 13.6 14.9 14.7 14.5 05/30/17 15.6 15.1 15.1 15.2 14.9 15.5 08/22/17 17.1 14.9 15.9 16.7 11/14/17 16.7 15.9 16.8 15.3 16.5 16.2 02/18/18 12.6 14.7 14.5 13.9 05/14/18 15.4 14.1 14.4 15.1 14.3 15.2 08/24/18 17.2 15.3 16.0 16.5 11/12/18 16.6 16.0 17.0 15.2 16.5 16.0 02/14/19 13.4 14.9 14.4 14.1 05/20/19 15.8 14.4 14.8 15.2 14.7 15.1 08/27/19 17.6 15.3 16.3 16.7 11/19/19 16.9 16.2 17.0 15.4 16.6 16.1 02/24/20 13.7 15.1 14.6 14.2 05/19/20 15.4 14.5 14.3 15.1 14.7 14.6 08/18/20 17.1 15.5 16.2 16.3 11/16/20 17.5 16.1 17.1 15.6 16.7 16.4 05/17/21 15.5 14.4 14.0 15.2 14.4 14.6 11/23/21 17.5 16.0 16.5 15.3 16.3 15.9 05/23/22 16.0 14.6 14.3 15.3 14.6 14.9 11/07/22 17.7 16.3 17.0 15.8 16.6 16.8 05/02/23 16.2 14.5 14.6 15.2 15.4 14.5 14.7 11/20/23 16.9 16.1 15.8 15.0 15.4 16.2 15.7 average = 16.3 15.3 15.2 15.1 15.4 15.3 15.2 standard deviation = 0.85 0.83 1.69 0.31 0.00 1.02 1.22 Specific Conductance (mS/cm)06/22/10 0.795 0.839 0.476 NM 11/19/10 0.752 0.936 0.709 NM 03/23/11 0.793 0.871 0.601 0.763 05/23/11 0.843 0.941 0.641 NM 08/23/11 0.848 0.980 0.826 NM 11/15/11 0.987 0.428 0.681 0.758 0.726 NM 02/21/12 0.800 0.928 0.828 NM 06/05/12 0.821 0.970 0.756 NM 11/12/12 0.888 1.019 0.910 NM 05/13/13 0.901 1.007 0.721 NM 11/11/13 1.312 0.442 0.969 1.136 1.045 0.945 02/10/14 0.924 0.973 0.806 0.872 05/12/14 1.306 0.510 0.892 0.902 0.868 0.907 08/18/14 0.876 1.021 1.022 0.859 11/11/14 1.288 0.383 0.937 1.141 1.143 0.915 02/23/15 1.029 1.055 1.036 0.916 05/12/15 1.341 0.503 0.998 1.003 0.991 0.921 08/24/15 0.993 1.070 1.157 0.929 11/10/15 1.295 0.565 0.996 1.074 1.131 0.920 02/22/16 0.989 0.937 1.045 0.960 05/18/16 1.358 0.463 0.961 1.011 0.945 0.944 08/23/16 0.973 1.019 1.071 0.901 11/16/16 1.292 0.445 0.950 1.022 1.115 0.881 02/22/17 0.998 1.066 1.082 0.931 05/30/17 1.332 0.474 1.020 0.988 1.048 0.905 08/22/17 0.903 0.964 1.075 0.753 11/14/17 1.262 0.441 0.975 1.091 1.243 0.894 02/18/18 1.017 1.055 1.278 0.999 05/14/18 1.380 0.492 1.020 1.070 1.210 1.030 08/24/18 1.060 1.106 1.276 1.032 11/12/18 1.404 0.561 1.046 1.025 1.189 1.056 02/14/19 1.000 0.967 1.081 1.049 05/20/19 1.426 0.527 0.995 0.976 1.045 1.031 08/27/19 0.998 1.096 1.189 0.985 11/19/19 1.350 0.518 0.988 1.032 1.298 0.981 02/24/20 0.975 1.010 1.187 0.979 05/19/20 1.315 0.442 0.960 1.012 1.093 0.977 08/18/20 0.982 1.107 1.232 1.016 11/16/20 1.36 0.56 1.013 1.066 1.239 1.016 05/17/21 1.388 0.516 1.003 1.050 1.095 1.046 11/23/21 1.373 0.494 1.044 1.139 1.301 1.033 05/23/22 1.422 0.537 1.086 1.149 1.260 1.077 11/07/22 1.338 0.482 1.034 1.128 1.330 1.034 05/02/23 1.230 0.477 0.911 0.894 0.477 1.091 0.981 11/20/23 1.381 0.506 0.966 0.671 0.524 1.491 1.141 average = 1.325 0.489 0.947 1.006 0.501 1.042 0.961 standard deviation = 0.091 0.047 0.089 0.098 0.033 0.219 0.082 INDICATOR PARAMETERS CLIENT: THE COUNTY OF ORANGE FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY LOCATION: CHAPEL HILL, NORTH CAROLINA PROJECT: GROUNDWATER MONITORING PROGRAM HISTORY OF CHEMICAL ANALYSIS MW-23 MW-24ConstituentSample Date MW-15 MW-16 MW-21S MW-21D MW-21D2 Dissolved Oxygen (%)06/22/10 6.0 14.6 13.2 NM 11/19/10 27.5 14.6 7.4 NM 03/23/11 59.2 12.8 10.0 31.6 05/23/11 91.5 98.0 1.1 NM 08/23/11 8.5 40.6 5.4 NM 11/15/11 16.0 17.0 58.5 9.2 6.6 NM 02/21/12 6.4 2.0 5.9 NM 06/05/12 28.3 10.0 3.6 NM 11/12/12 53.9 72.4 16.7 NM 05/13/13 13.6 80.9 4.4 NM 11/11/13 5.2 7.2 32.7 7.8 7.4 24.7 02/10/14 15.7 2.2 12.7 33.5 05/12/14 1.6 0.6 22.4 3.1 1.2 12.6 08/18/14 4.5 9.3 10.5 24.6 11/11/14 3.3 47.2 41.5 2.2 7.8 22.5 02/23/15 18.4 11.6 9.5 36.0 05/12/15 14.8 27.0 26.4 14.2 18.0 28.5 08/24/15 34.5 2.3 7.0 12.0 11/10/15 5.8 5.5 28.8 27.2 23.5 26.4 02/22/16 13.6 2.9 5.9 24.6 05/18/16 0.5 0.6 8.7 0.7 2.0 11.2 08/23/16 19.6 -1.3 3.3 31.0 11/16/16 -0.1 0.2 16.4 -1.0 5.3 29.2 02/22/17 66.0 0.4 5.7 26.8 05/30/17 0.1 -0.4 9.8 0.9 0.2 27.2 08/22/17 15.2 0.3 56.4 26.6 11/14/17 7.8 2.9 18.4 1.2 7.2 30.6 02/18/18 16.6 -1.0 -2.0 21.3 05/14/18 4.8 6.3 74.8 12.4 6.0 15.7 08/24/18 29.9 -1.3 4.0 18.8 11/12/18 -2.1 -2.2 4.0 -2.6 4.9 44.4 02/14/19 29.0 3.7 7.9 35.7 05/20/19 -1.6 -1.1 4.9 -1.1 -0.3 11.3 08/27/19 20.0 -0.6 6.0 36.7 11/19/19 -0.3 -0.4 27.5 -0.5 5.0 31.8 02/24/20 30.1 0.2 3.5 30.8 05/19/20 -0.2 -0.2 9.2 0.8 0.1 18.1 08/18/20 38.4 3.3 8.5 15.4 11/16/20 0.4 1.7 20.0 0.4 12.1 39.6 05/17/21 0.7 1.9 7.0 0.8 1.2 15.2 11/23/21 2.4 4.1 44.0 2.3 19.3 39.0 05/23/22 -5.0 -4.1 9.7 -5.2 -3.9 25.8 11/07/22 0.8 -0.9 21.0 -0.7 16.2 40.5 DO % calculated from mg/L 05/02/23 6.7 4.6 6.1 5.2 4.5 4.9 22.7 11/20/23 12.0 6.0 19.9 11.1 8.8 6.4 11.6 average = 3.3 5.6 25.7 10.4 6.7 7.9 25.9 standard deviation = 5.4 11.5 19.9 21.6 3.0 9.3 9.2 turbidity (NTU)06/22/10 19.6 5.9 7.1 NM 11/19/10 23.0 1.0 5.0 NM 03/23/11 NM 05/23/11 38.0 6.8 5.2 NM 08/23/11 24.0 4.5 3.1 NM 11/15/11 2.7 2.8 22.5 7.1 2.4 NM 02/21/12 15.0 7.1 3.3 NM 06/05/12 15.2 6.2 2.8 NM 11/12/12 6.0 3.0 1.6 NM 05/13/13 1.0 2.2 1.3 NM 11/11/13 1.5 1.3 2.5 0.4 1.8 4.5 02/10/14 4.8 3.9 1.2 1.4 05/12/14 13.0 13.8 8.2 4.2 0.6 1.3 08/18/14 9.1 0.5 0.8 0.4 11/11/14 3.1 4.3 2.9 0.3 0.6 0.5 02/23/15 1.9 0.3 0.5 0.5 05/12/15 7.3 11.5 7.5 0.4 0.6 0.2 08/24/15 22.0 0.5 0.4 0.3 11/10/15 0.0 0.0 0.0 0.0 0.0 0.0 02/22/16 9.1 0.5 0.4 0.3 05/18/16 8.1 1.7 1.8 0.2 1.3 1.1 08/23/16 3.8 0.9 0.9 0.8 11/16/16 4.8 2.0 8.6 1.3 1.7 1.7 02/22/17 13.6 3.1 4.0 3.6 05/30/17 9.1 5.7 2.6 1.7 3.1 10.2 08/22/17 10.5 4.6 5.4 3.1 11/14/17 1.4 1.5 0.2 0.1 0.2 0.1 02/18/18 3.6 1.8 1.9 1.9 05/14/18 3.2 0.3 1.1 0.1 0.1 0.1 08/24/18 16.3 0.6 1.0 2.5 11/12/18 0.6 0.4 2.0 0.0 0.0 0.0 02/14/19 11.3 1.5 1.9 1.6 05/20/19 3.1 0.6 0.8 0.4 0.5 0.5 08/27/19 3.2 2.0 1.8 1.8 11/19/19 4.0 2.2 3.1 1.6 1.4 2.9 02/24/20 12.0 2.0 2.0 2.1 05/19/20 08/18/20 16.5 1.5 1.5 1.0 11/16/20 4.4 9.0 1.9 1.5 2.5 1.6 05/17/21 9.4 5.3 3.7 1.9 3.1 2.5 11/23/21 8.5 2.0 4.4 0 0 0 05/23/22 16.0 7.8 4.7 2.2 7.6 1.9 11/07/22 10.0 5.5 7 2.4 2 1.7 05/02/23 250.0 15.9 6.5 215 5.31 2.09 1.43 11/20/23 2.7 7.49 0.86 34 1.27 0.71 0.81 average = 17.3 4.8 8.7 7.8 3.3 2.0 1.6 standard deviation = 53.5 4.6 8.3 32.8 2.9 1.83 1.88 All values are last recorded immediately prior to sample collection. 03-23-11 - parameters remeasured one day after sampling; suspect faulty meter during sampling NM - Not Measured; well sampled with Hydrasleeve. MW-21D2 and MW-301 installed November 2022 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 7: Laboratory Certificate-of-Analysis, Chain-of Custodies, and Quality Control Information Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 7: North Monitoring Wells #=CL# December 04, 2023 LIMS USE: FR - DEBORAH COAKLEY LIMS OBJECT ID: 92699888 92699888 Project: Pace Project No.: RE: Deborah Ann Coakley TRC Companies 1030 Wilmer Ave. Suite 100 Richmond, VA 23227 OCSWM FALL-NORTH Dear Deborah Coakley: Enclosed are the analytical results for sample(s) received by the laboratory on November 20, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Matthew Brainard matthew.brainard@pacelabs.com Project Manager 704-977-0942 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 41 #=CP# CERTIFICATIONS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 41 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92699888001 6801-MW20 EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92699888002 6801-MW21D EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 SM 3500-Cr B-2011 1 PASI-AJMH1 92699888003 6801-MW21D2 EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CJJK EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 SM 3500-Cr B-2011 1 PASI-AJMH1 92699888004 6801-MW21S EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CJJK EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 SM 3500-Cr B-2011 1 PASI-AJMH1 92699888005 6801-MW23 EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CJJK EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 SM 3500-Cr B-2011 1 PASI-AJMH1 92699888006 6801-MW24 EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CJJK EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 SM 3500-Cr B-2011 1 PASI-AJMH1 92699888007 6801-MW301 EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 41 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts EPA 8260D 51 PASI-CJJK EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 SM 3500-Cr B-2011 1 PASI-AJMH1 PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW20 Lab ID: 92699888001 Collected: 11/20/23 14:00 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 11:32 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 11:32 7440-38-211/22/23 11:5510.0 1 Barium 136 ug/L 12/03/23 11:32 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 11:32 7440-41-711/22/23 11:551.0 1 Cadmium 1.9 ug/L 12/03/23 11:32 7440-43-911/22/23 11:551.0 1 Chromium ND ug/L 12/03/23 11:32 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 11:35 7440-48-411/22/23 11:5550.0 10 Copper ND ug/L 12/03/23 11:32 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 11:35 7439-92-111/22/23 11:5550.0 10 Nickel ND ug/L 12/03/23 11:32 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 11:35 7782-49-211/22/23 11:55100 10 Silver ND ug/L 12/03/23 11:32 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 11:32 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 11:32 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 11:32 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/25/23 10:09 7439-97-611/23/23 16:180.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/29/23 16:21 67-64-125.0 1 Acrylonitrile ND ug/L 11/29/23 16:21 107-13-110.0 1 Benzene 4.0 ug/L 11/29/23 16:21 71-43-21.0 1 Bromochloromethane ND ug/L 11/29/23 16:21 74-97-51.0 1 Bromodichloromethane ND ug/L 11/29/23 16:21 75-27-41.0 1 Bromoform ND ug/L 11/29/23 16:21 75-25-21.0 1 Bromomethane ND ug/L 11/29/23 16:21 74-83-92.0 1 2-Butanone (MEK)ND ug/L 11/29/23 16:21 78-93-35.0 1 Carbon disulfide ND ug/L 11/29/23 16:21 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/29/23 16:21 56-23-51.0 1 Chlorobenzene 1.3 ug/L 11/29/23 16:21 108-90-71.0 1 Chloroethane ND ug/L 11/29/23 16:21 75-00-31.0 1 Chloroform ND ug/L 11/29/23 16:21 67-66-31.0 1 Chloromethane ND ug/L 11/29/23 16:21 74-87-31.0 1 Dibromochloromethane ND ug/L 11/29/23 16:21 124-48-11.0 1 Dibromomethane ND ug/L 11/29/23 16:21 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/29/23 16:21 95-50-11.0 1 1,4-Dichlorobenzene 5.7 ug/L 11/29/23 16:21 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/29/23 16:21 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/29/23 16:21 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/29/23 16:21 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/29/23 16:21 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/29/23 16:21 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW20 Lab ID: 92699888001 Collected: 11/20/23 14:00 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/29/23 16:21 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/29/23 16:21 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/29/23 16:21 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/29/23 16:21 10061-02-61.0 1 Ethylbenzene ND ug/L 11/29/23 16:21 100-41-41.0 1 2-Hexanone ND ug/L 11/29/23 16:21 591-78-65.0 1 Iodomethane ND ug/L 11/29/23 16:21 74-88-420.0 1 Methylene Chloride ND ug/L 11/29/23 16:21 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/29/23 16:21 108-10-15.0 1 Naphthalene 1.5 ug/L 11/29/23 16:21 91-20-31.0 1 Styrene ND ug/L 11/29/23 16:21 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/29/23 16:21 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/29/23 16:21 79-34-51.0 1 Tetrachloroethene ND ug/L 11/29/23 16:21 127-18-41.0 1 Toluene ND ug/L 11/29/23 16:21 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/29/23 16:21 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/29/23 16:21 79-00-51.0 1 Trichloroethene ND ug/L 11/29/23 16:21 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/29/23 16:21 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/29/23 16:21 96-18-41.0 1 Vinyl acetate ND ug/L 11/29/23 16:21 108-05-42.0 1 Vinyl chloride ND ug/L 11/29/23 16:21 75-01-4 v21.0 1 Xylene (Total)ND ug/L 11/29/23 16:21 1330-20-71.0 1 m&p-Xylene ND ug/L 11/29/23 16:21 179601-23-12.0 1 o-Xylene ND ug/L 11/29/23 16:21 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)99 %11/29/23 16:21 460-00-470-130 1 1,2-Dichloroethane-d4 (S)99 %11/29/23 16:21 17060-07-070-130 1 Toluene-d8 (S)99 %11/29/23 16:21 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)222 ug/L 11/28/23 17:52 123-91-1 H1,H58.0 4 Surrogates 1,2-Dichloroethane-d4 (S)106 %11/28/23 17:52 17060-07-067-130 4 Toluene-d8 (S)105 %11/28/23 17:52 2037-26-570-130 4 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:19 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW21D Lab ID: 92699888002 Collected: 11/20/23 09:25 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 11:43 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 11:43 7440-38-211/22/23 11:5510.0 1 Barium ND ug/L 12/03/23 11:43 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 11:43 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 11:43 7440-43-911/22/23 11:551.0 1 Chromium 6.9 ug/L 12/03/23 11:43 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 11:43 7440-48-411/22/23 11:555.0 1 Copper 7.0 ug/L 12/03/23 11:43 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 11:43 7439-92-111/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 11:43 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 11:43 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 11:43 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 11:43 7440-28-011/22/23 11:5510.0 1 Vanadium 5.0 ug/L 12/03/23 11:43 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 11:43 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury 1.6 ug/L 11/25/23 10:11 7439-97-611/23/23 16:180.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/29/23 16:39 67-64-125.0 1 Acrylonitrile ND ug/L 11/29/23 16:39 107-13-110.0 1 Benzene ND ug/L 11/29/23 16:39 71-43-21.0 1 Bromochloromethane ND ug/L 11/29/23 16:39 74-97-51.0 1 Bromodichloromethane ND ug/L 11/29/23 16:39 75-27-41.0 1 Bromoform ND ug/L 11/29/23 16:39 75-25-21.0 1 Bromomethane ND ug/L 11/29/23 16:39 74-83-92.0 1 2-Butanone (MEK)ND ug/L 11/29/23 16:39 78-93-35.0 1 Carbon disulfide ND ug/L 11/29/23 16:39 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/29/23 16:39 56-23-51.0 1 Chlorobenzene ND ug/L 11/29/23 16:39 108-90-71.0 1 Chloroethane ND ug/L 11/29/23 16:39 75-00-31.0 1 Chloroform ND ug/L 11/29/23 16:39 67-66-31.0 1 Chloromethane ND ug/L 11/29/23 16:39 74-87-31.0 1 Dibromochloromethane ND ug/L 11/29/23 16:39 124-48-11.0 1 Dibromomethane ND ug/L 11/29/23 16:39 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/29/23 16:39 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/29/23 16:39 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/29/23 16:39 110-57-61.0 1 1,1-Dichloroethane 1.3 ug/L 11/29/23 16:39 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/29/23 16:39 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/29/23 16:39 75-35-41.0 1 cis-1,2-Dichloroethene 4.2 ug/L 11/29/23 16:39 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW21D Lab ID: 92699888002 Collected: 11/20/23 09:25 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/29/23 16:39 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/29/23 16:39 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/29/23 16:39 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/29/23 16:39 10061-02-61.0 1 Ethylbenzene ND ug/L 11/29/23 16:39 100-41-41.0 1 2-Hexanone ND ug/L 11/29/23 16:39 591-78-65.0 1 Iodomethane ND ug/L 11/29/23 16:39 74-88-420.0 1 Methylene Chloride ND ug/L 11/29/23 16:39 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/29/23 16:39 108-10-15.0 1 Naphthalene ND ug/L 11/29/23 16:39 91-20-31.0 1 Styrene ND ug/L 11/29/23 16:39 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/29/23 16:39 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/29/23 16:39 79-34-51.0 1 Tetrachloroethene ND ug/L 11/29/23 16:39 127-18-41.0 1 Toluene ND ug/L 11/29/23 16:39 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/29/23 16:39 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/29/23 16:39 79-00-51.0 1 Trichloroethene ND ug/L 11/29/23 16:39 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/29/23 16:39 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/29/23 16:39 96-18-41.0 1 Vinyl acetate ND ug/L 11/29/23 16:39 108-05-42.0 1 Vinyl chloride ND ug/L 11/29/23 16:39 75-01-4 v21.0 1 Xylene (Total)ND ug/L 11/29/23 16:39 1330-20-71.0 1 m&p-Xylene ND ug/L 11/29/23 16:39 179601-23-12.0 1 o-Xylene ND ug/L 11/29/23 16:39 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)102 %11/29/23 16:39 460-00-470-130 1 1,2-Dichloroethane-d4 (S)95 %11/29/23 16:39 17060-07-070-130 1 Toluene-d8 (S)99 %11/29/23 16:39 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)13.7 ug/L 11/23/23 00:02 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)86 %11/23/23 00:02 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 00:02 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:19 18496-25-80.10 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent ND mg/L 11/25/23 15:07 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW21D2 Lab ID: 92699888003 Collected: 11/20/23 08:30 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 11:49 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 11:49 7440-38-211/22/23 11:5510.0 1 Barium ND ug/L 12/03/23 11:49 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 11:49 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 11:49 7440-43-911/22/23 11:551.0 1 Chromium ND ug/L 12/03/23 11:49 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 11:49 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 11:49 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 11:49 7439-92-111/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 11:49 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 11:49 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 11:49 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 11:49 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 11:49 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 11:49 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/25/23 10:13 7439-97-611/23/23 16:180.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/30/23 15:07 67-64-125.0 1 Acrylonitrile ND ug/L 11/30/23 15:07 107-13-110.0 1 Benzene ND ug/L 11/30/23 15:07 71-43-21.0 1 Bromochloromethane ND ug/L 11/30/23 15:07 74-97-51.0 1 Bromodichloromethane ND ug/L 11/30/23 15:07 75-27-41.0 1 Bromoform ND ug/L 11/30/23 15:07 75-25-21.0 1 Bromomethane ND ug/L 11/30/23 15:07 74-83-9 v22.0 1 2-Butanone (MEK)ND ug/L 11/30/23 15:07 78-93-35.0 1 Carbon disulfide ND ug/L 11/30/23 15:07 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/30/23 15:07 56-23-51.0 1 Chlorobenzene ND ug/L 11/30/23 15:07 108-90-71.0 1 Chloroethane ND ug/L 11/30/23 15:07 75-00-31.0 1 Chloroform ND ug/L 11/30/23 15:07 67-66-31.0 1 Chloromethane ND ug/L 11/30/23 15:07 74-87-31.0 1 Dibromochloromethane ND ug/L 11/30/23 15:07 124-48-11.0 1 Dibromomethane ND ug/L 11/30/23 15:07 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/30/23 15:07 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/30/23 15:07 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/30/23 15:07 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/30/23 15:07 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/30/23 15:07 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/30/23 15:07 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/30/23 15:07 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW21D2 Lab ID: 92699888003 Collected: 11/20/23 08:30 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/30/23 15:07 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/30/23 15:07 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/30/23 15:07 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/30/23 15:07 10061-02-61.0 1 Ethylbenzene ND ug/L 11/30/23 15:07 100-41-41.0 1 2-Hexanone ND ug/L 11/30/23 15:07 591-78-65.0 1 Iodomethane ND ug/L 11/30/23 15:07 74-88-4 v220.0 1 Methylene Chloride ND ug/L 11/30/23 15:07 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/30/23 15:07 108-10-15.0 1 Naphthalene ND ug/L 11/30/23 15:07 91-20-31.0 1 Styrene ND ug/L 11/30/23 15:07 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/30/23 15:07 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/30/23 15:07 79-34-51.0 1 Tetrachloroethene ND ug/L 11/30/23 15:07 127-18-41.0 1 Toluene ND ug/L 11/30/23 15:07 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/30/23 15:07 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/30/23 15:07 79-00-51.0 1 Trichloroethene ND ug/L 11/30/23 15:07 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/30/23 15:07 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/30/23 15:07 96-18-41.0 1 Vinyl acetate ND ug/L 11/30/23 15:07 108-05-42.0 1 Vinyl chloride ND ug/L 11/30/23 15:07 75-01-41.0 1 Xylene (Total)ND ug/L 11/30/23 15:07 1330-20-71.0 1 m&p-Xylene ND ug/L 11/30/23 15:07 179601-23-12.0 1 o-Xylene ND ug/L 11/30/23 15:07 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)100 %11/30/23 15:07 460-00-470-130 1 1,2-Dichloroethane-d4 (S)94 %11/30/23 15:07 17060-07-070-130 1 Toluene-d8 (S)104 %11/30/23 15:07 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)ND ug/L 11/23/23 00:24 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)88 %11/23/23 00:24 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 00:24 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:19 18496-25-80.10 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent ND mg/L 11/25/23 15:10 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW21S Lab ID: 92699888004 Collected: 11/20/23 08:55 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 11:55 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 11:55 7440-38-211/22/23 11:5510.0 1 Barium ND ug/L 12/03/23 11:55 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 11:55 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 11:55 7440-43-911/22/23 11:551.0 1 Chromium 14.9 ug/L 12/03/23 11:55 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 11:55 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 11:55 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 11:55 7439-92-111/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 11:55 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 11:55 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 11:55 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 11:55 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 11:55 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 11:55 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury 5.9 ug/L 11/25/23 10:40 7439-97-611/23/23 16:181.0 5 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/30/23 15:25 67-64-125.0 1 Acrylonitrile ND ug/L 11/30/23 15:25 107-13-110.0 1 Benzene ND ug/L 11/30/23 15:25 71-43-21.0 1 Bromochloromethane ND ug/L 11/30/23 15:25 74-97-51.0 1 Bromodichloromethane ND ug/L 11/30/23 15:25 75-27-41.0 1 Bromoform ND ug/L 11/30/23 15:25 75-25-21.0 1 Bromomethane ND ug/L 11/30/23 15:25 74-83-9 v22.0 1 2-Butanone (MEK)ND ug/L 11/30/23 15:25 78-93-35.0 1 Carbon disulfide ND ug/L 11/30/23 15:25 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/30/23 15:25 56-23-51.0 1 Chlorobenzene ND ug/L 11/30/23 15:25 108-90-71.0 1 Chloroethane ND ug/L 11/30/23 15:25 75-00-31.0 1 Chloroform ND ug/L 11/30/23 15:25 67-66-31.0 1 Chloromethane ND ug/L 11/30/23 15:25 74-87-31.0 1 Dibromochloromethane ND ug/L 11/30/23 15:25 124-48-11.0 1 Dibromomethane ND ug/L 11/30/23 15:25 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/30/23 15:25 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/30/23 15:25 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/30/23 15:25 110-57-61.0 1 1,1-Dichloroethane 2.7 ug/L 11/30/23 15:25 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/30/23 15:25 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/30/23 15:25 75-35-41.0 1 cis-1,2-Dichloroethene 7.2 ug/L 11/30/23 15:25 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW21S Lab ID: 92699888004 Collected: 11/20/23 08:55 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/30/23 15:25 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/30/23 15:25 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/30/23 15:25 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/30/23 15:25 10061-02-61.0 1 Ethylbenzene ND ug/L 11/30/23 15:25 100-41-41.0 1 2-Hexanone ND ug/L 11/30/23 15:25 591-78-65.0 1 Iodomethane ND ug/L 11/30/23 15:25 74-88-4 v220.0 1 Methylene Chloride ND ug/L 11/30/23 15:25 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/30/23 15:25 108-10-15.0 1 Naphthalene ND ug/L 11/30/23 15:25 91-20-31.0 1 Styrene ND ug/L 11/30/23 15:25 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/30/23 15:25 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/30/23 15:25 79-34-51.0 1 Tetrachloroethene ND ug/L 11/30/23 15:25 127-18-41.0 1 Toluene ND ug/L 11/30/23 15:25 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/30/23 15:25 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/30/23 15:25 79-00-51.0 1 Trichloroethene ND ug/L 11/30/23 15:25 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/30/23 15:25 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/30/23 15:25 96-18-41.0 1 Vinyl acetate ND ug/L 11/30/23 15:25 108-05-42.0 1 Vinyl chloride ND ug/L 11/30/23 15:25 75-01-41.0 1 Xylene (Total)ND ug/L 11/30/23 15:25 1330-20-71.0 1 m&p-Xylene ND ug/L 11/30/23 15:25 179601-23-12.0 1 o-Xylene ND ug/L 11/30/23 15:25 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)100 %11/30/23 15:25 460-00-470-130 1 1,2-Dichloroethane-d4 (S)94 %11/30/23 15:25 17060-07-070-130 1 Toluene-d8 (S)105 %11/30/23 15:25 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)22.3 ug/L 11/23/23 00:45 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)88 %11/23/23 00:45 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 00:45 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:20 18496-25-80.10 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent 0.034 mg/L 11/25/23 15:11 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW23 Lab ID: 92699888005 Collected: 11/20/23 10:40 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 12:00 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 12:00 7440-38-211/22/23 11:5510.0 1 Barium ND ug/L 12/03/23 12:00 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 12:00 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 12:00 7440-43-911/22/23 11:551.0 1 Chromium 9.0 ug/L 12/03/23 12:00 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 12:00 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 12:00 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 12:00 7439-92-111/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 12:00 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 12:00 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 12:00 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 12:00 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 12:00 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 12:00 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury 5.7 ug/L 11/25/23 10:43 7439-97-611/23/23 16:180.40 2 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/30/23 15:44 67-64-125.0 1 Acrylonitrile ND ug/L 11/30/23 15:44 107-13-110.0 1 Benzene ND ug/L 11/30/23 15:44 71-43-21.0 1 Bromochloromethane ND ug/L 11/30/23 15:44 74-97-51.0 1 Bromodichloromethane ND ug/L 11/30/23 15:44 75-27-41.0 1 Bromoform ND ug/L 11/30/23 15:44 75-25-21.0 1 Bromomethane ND ug/L 11/30/23 15:44 74-83-9 v22.0 1 2-Butanone (MEK)ND ug/L 11/30/23 15:44 78-93-35.0 1 Carbon disulfide ND ug/L 11/30/23 15:44 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/30/23 15:44 56-23-51.0 1 Chlorobenzene 3.1 ug/L 11/30/23 15:44 108-90-71.0 1 Chloroethane ND ug/L 11/30/23 15:44 75-00-31.0 1 Chloroform ND ug/L 11/30/23 15:44 67-66-31.0 1 Chloromethane ND ug/L 11/30/23 15:44 74-87-31.0 1 Dibromochloromethane ND ug/L 11/30/23 15:44 124-48-11.0 1 Dibromomethane ND ug/L 11/30/23 15:44 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/30/23 15:44 95-50-11.0 1 1,4-Dichlorobenzene 4.0 ug/L 11/30/23 15:44 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/30/23 15:44 110-57-61.0 1 1,1-Dichloroethane 7.0 ug/L 11/30/23 15:44 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/30/23 15:44 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/30/23 15:44 75-35-41.0 1 cis-1,2-Dichloroethene 59.0 ug/L 11/30/23 15:44 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW23 Lab ID: 92699888005 Collected: 11/20/23 10:40 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/30/23 15:44 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/30/23 15:44 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/30/23 15:44 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/30/23 15:44 10061-02-61.0 1 Ethylbenzene ND ug/L 11/30/23 15:44 100-41-41.0 1 2-Hexanone ND ug/L 11/30/23 15:44 591-78-65.0 1 Iodomethane ND ug/L 11/30/23 15:44 74-88-4 v220.0 1 Methylene Chloride ND ug/L 11/30/23 15:44 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/30/23 15:44 108-10-15.0 1 Naphthalene ND ug/L 11/30/23 15:44 91-20-31.0 1 Styrene ND ug/L 11/30/23 15:44 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/30/23 15:44 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/30/23 15:44 79-34-51.0 1 Tetrachloroethene ND ug/L 11/30/23 15:44 127-18-41.0 1 Toluene ND ug/L 11/30/23 15:44 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/30/23 15:44 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/30/23 15:44 79-00-51.0 1 Trichloroethene ND ug/L 11/30/23 15:44 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/30/23 15:44 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/30/23 15:44 96-18-41.0 1 Vinyl acetate ND ug/L 11/30/23 15:44 108-05-42.0 1 Vinyl chloride 2.6 ug/L 11/30/23 15:44 75-01-41.0 1 Xylene (Total)ND ug/L 11/30/23 15:44 1330-20-71.0 1 m&p-Xylene ND ug/L 11/30/23 15:44 179601-23-12.0 1 o-Xylene ND ug/L 11/30/23 15:44 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)100 %11/30/23 15:44 460-00-470-130 1 1,2-Dichloroethane-d4 (S)95 %11/30/23 15:44 17060-07-070-130 1 Toluene-d8 (S)105 %11/30/23 15:44 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)49.5 ug/L 11/23/23 01:06 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)89 %11/23/23 01:06 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 01:06 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:20 18496-25-80.10 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent ND mg/L 11/25/23 15:11 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW24 Lab ID: 92699888006 Collected: 11/20/23 10:15 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 12:06 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 12:06 7440-38-211/22/23 11:5510.0 1 Barium ND ug/L 12/03/23 12:06 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 12:06 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 12:06 7440-43-911/22/23 11:551.0 1 Chromium ND ug/L 12/03/23 12:06 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 12:06 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 12:06 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 12:06 7439-92-111/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 12:06 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 12:06 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 12:06 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 12:06 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 12:06 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 12:06 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/25/23 10:20 7439-97-611/23/23 16:180.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/30/23 16:02 67-64-125.0 1 Acrylonitrile ND ug/L 11/30/23 16:02 107-13-110.0 1 Benzene ND ug/L 11/30/23 16:02 71-43-21.0 1 Bromochloromethane ND ug/L 11/30/23 16:02 74-97-51.0 1 Bromodichloromethane ND ug/L 11/30/23 16:02 75-27-41.0 1 Bromoform ND ug/L 11/30/23 16:02 75-25-21.0 1 Bromomethane ND ug/L 11/30/23 16:02 74-83-9 v22.0 1 2-Butanone (MEK)ND ug/L 11/30/23 16:02 78-93-35.0 1 Carbon disulfide ND ug/L 11/30/23 16:02 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/30/23 16:02 56-23-51.0 1 Chlorobenzene ND ug/L 11/30/23 16:02 108-90-71.0 1 Chloroethane ND ug/L 11/30/23 16:02 75-00-31.0 1 Chloroform ND ug/L 11/30/23 16:02 67-66-31.0 1 Chloromethane ND ug/L 11/30/23 16:02 74-87-31.0 1 Dibromochloromethane ND ug/L 11/30/23 16:02 124-48-11.0 1 Dibromomethane ND ug/L 11/30/23 16:02 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/30/23 16:02 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/30/23 16:02 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/30/23 16:02 110-57-61.0 1 1,1-Dichloroethane 4.2 ug/L 11/30/23 16:02 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/30/23 16:02 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/30/23 16:02 75-35-41.0 1 cis-1,2-Dichloroethene 20.8 ug/L 11/30/23 16:02 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW24 Lab ID: 92699888006 Collected: 11/20/23 10:15 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/30/23 16:02 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/30/23 16:02 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/30/23 16:02 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/30/23 16:02 10061-02-61.0 1 Ethylbenzene ND ug/L 11/30/23 16:02 100-41-41.0 1 2-Hexanone ND ug/L 11/30/23 16:02 591-78-65.0 1 Iodomethane ND ug/L 11/30/23 16:02 74-88-4 v220.0 1 Methylene Chloride ND ug/L 11/30/23 16:02 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/30/23 16:02 108-10-15.0 1 Naphthalene ND ug/L 11/30/23 16:02 91-20-31.0 1 Styrene ND ug/L 11/30/23 16:02 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/30/23 16:02 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/30/23 16:02 79-34-51.0 1 Tetrachloroethene ND ug/L 11/30/23 16:02 127-18-41.0 1 Toluene ND ug/L 11/30/23 16:02 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/30/23 16:02 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/30/23 16:02 79-00-51.0 1 Trichloroethene ND ug/L 11/30/23 16:02 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/30/23 16:02 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/30/23 16:02 96-18-41.0 1 Vinyl acetate ND ug/L 11/30/23 16:02 108-05-42.0 1 Vinyl chloride ND ug/L 11/30/23 16:02 75-01-41.0 1 Xylene (Total)ND ug/L 11/30/23 16:02 1330-20-71.0 1 m&p-Xylene ND ug/L 11/30/23 16:02 179601-23-12.0 1 o-Xylene ND ug/L 11/30/23 16:02 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)99 %11/30/23 16:02 460-00-470-130 1 1,2-Dichloroethane-d4 (S)96 %11/30/23 16:02 17060-07-070-130 1 Toluene-d8 (S)104 %11/30/23 16:02 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)26.4 ug/L 11/23/23 01:28 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)88 %11/23/23 01:28 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 01:28 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:21 18496-25-80.10 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent ND mg/L 11/25/23 15:11 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW301 Lab ID: 92699888007 Collected: 11/20/23 13:00 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 12:23 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 12:23 7440-38-211/22/23 11:5510.0 1 Barium 7.5 ug/L 12/03/23 12:23 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 12:23 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 12:23 7440-43-911/22/23 11:551.0 1 Chromium ND ug/L 12/03/23 12:23 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 12:23 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 12:23 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 12:23 7439-92-111/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 12:23 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 12:23 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 12:23 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 12:23 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 12:23 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 12:23 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/25/23 10:22 7439-97-611/23/23 16:180.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/30/23 18:16 67-64-125.0 1 Acrylonitrile ND ug/L 11/30/23 18:16 107-13-110.0 1 Benzene ND ug/L 11/30/23 18:16 71-43-21.0 1 Bromochloromethane ND ug/L 11/30/23 18:16 74-97-51.0 1 Bromodichloromethane ND ug/L 11/30/23 18:16 75-27-41.0 1 Bromoform ND ug/L 11/30/23 18:16 75-25-21.0 1 Bromomethane ND ug/L 11/30/23 18:16 74-83-9 v22.0 1 2-Butanone (MEK)ND ug/L 11/30/23 18:16 78-93-35.0 1 Carbon disulfide ND ug/L 11/30/23 18:16 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/30/23 18:16 56-23-51.0 1 Chlorobenzene ND ug/L 11/30/23 18:16 108-90-71.0 1 Chloroethane ND ug/L 11/30/23 18:16 75-00-31.0 1 Chloroform ND ug/L 11/30/23 18:16 67-66-31.0 1 Chloromethane ND ug/L 11/30/23 18:16 74-87-31.0 1 Dibromochloromethane ND ug/L 11/30/23 18:16 124-48-11.0 1 Dibromomethane ND ug/L 11/30/23 18:16 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/30/23 18:16 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/30/23 18:16 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/30/23 18:16 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/30/23 18:16 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/30/23 18:16 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/30/23 18:16 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/30/23 18:16 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 41 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Sample: 6801-MW301 Lab ID: 92699888007 Collected: 11/20/23 13:00 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/30/23 18:16 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/30/23 18:16 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/30/23 18:16 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/30/23 18:16 10061-02-61.0 1 Ethylbenzene ND ug/L 11/30/23 18:16 100-41-41.0 1 2-Hexanone ND ug/L 11/30/23 18:16 591-78-65.0 1 Iodomethane ND ug/L 11/30/23 18:16 74-88-4 v220.0 1 Methylene Chloride ND ug/L 11/30/23 18:16 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/30/23 18:16 108-10-15.0 1 Naphthalene ND ug/L 11/30/23 18:16 91-20-31.0 1 Styrene ND ug/L 11/30/23 18:16 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/30/23 18:16 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/30/23 18:16 79-34-51.0 1 Tetrachloroethene ND ug/L 11/30/23 18:16 127-18-41.0 1 Toluene ND ug/L 11/30/23 18:16 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/30/23 18:16 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/30/23 18:16 79-00-51.0 1 Trichloroethene ND ug/L 11/30/23 18:16 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/30/23 18:16 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/30/23 18:16 96-18-41.0 1 Vinyl acetate ND ug/L 11/30/23 18:16 108-05-42.0 1 Vinyl chloride ND ug/L 11/30/23 18:16 75-01-41.0 1 Xylene (Total)ND ug/L 11/30/23 18:16 1330-20-71.0 1 m&p-Xylene ND ug/L 11/30/23 18:16 179601-23-12.0 1 o-Xylene ND ug/L 11/30/23 18:16 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)96 %11/30/23 18:16 460-00-470-130 1 1,2-Dichloroethane-d4 (S)77 %11/30/23 18:16 17060-07-070-130 1 Toluene-d8 (S)104 %11/30/23 18:16 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)ND ug/L 11/23/23 01:49 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)87 %11/23/23 01:49 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 01:49 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:21 18496-25-80.10 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent ND mg/L 11/25/23 15:11 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815270 EPA 7470A EPA 7470A 7470 Mercury Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699888001, 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220654 Associated Lab Samples:92699888001, 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Matrix: Water Analyzed Mercury ug/L ND 0.20 11/25/23 10:05 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220655LABORATORY CONTROL SAMPLE: LCSSpike Mercury ug/L 2.52.5 99 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220656MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220657 MSD Result MSD % Rec RPD MSDMS Spike Conc. Mercury ug/L 2.5 101 75-125100 02.5ND 2.5 2.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815073 EPA 3010A EPA 6010D 6010 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699888001, 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4219471 Associated Lab Samples:92699888001, 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Matrix: Water Analyzed Antimony ug/L ND 5.0 12/03/23 11:26 Arsenic ug/L ND 10.0 12/03/23 11:26 Barium ug/L ND 5.0 12/03/23 11:26 Beryllium ug/L ND 1.0 12/03/23 11:26 Cadmium ug/L ND 1.0 12/03/23 11:26 Chromium ug/L ND 5.0 12/03/23 11:26 Cobalt ug/L ND 5.0 12/03/23 11:26 Copper ug/L ND 5.0 12/03/23 11:26 Lead ug/L ND 5.0 12/03/23 11:26 Nickel ug/L ND 5.0 12/03/23 11:26 Selenium ug/L ND 10.0 12/03/23 11:26 Silver ug/L ND 5.0 12/03/23 11:26 Thallium ug/L ND 10.0 12/03/23 11:26 Vanadium ug/L ND 5.0 12/03/23 11:26 Zinc ug/L ND 10.0 12/03/23 11:26 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4219472LABORATORY CONTROL SAMPLE: LCSSpike Antimony ug/L 509500 102 80-120 Arsenic ug/L 505500 101 80-120 Barium ug/L 521500 104 80-120 Beryllium ug/L 506500 101 80-120 Cadmium ug/L 510500 102 80-120 Chromium ug/L 510500 102 80-120 Cobalt ug/L 510500 102 80-120 Copper ug/L 512500 102 80-120 Lead ug/L 509500 102 80-120 Nickel ug/L 507500 101 80-120 Selenium ug/L 494500 99 80-120 Silver ug/L 255250 102 80-120 Thallium ug/L 515500 103 80-120 Vanadium ug/L 509500 102 80-120 Zinc ug/L 506500 101 80-120 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4219473MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4219474 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 102 75-125103 1500ND512 515 Arsenic ug/L 500 103 75-125103 0500ND515 516 Barium ug/L 500 102 75-125105 350080.1 589 606 Beryllium ug/L 500 103 75-125104 1500ND516 520 Cadmium ug/L 500 102 75-125102 1500ND508 512 Chromium ug/L 500 103 75-125103 1500ND513 517 Cobalt ug/L 500 102 75-125103 1500ND508 513 Copper ug/L 500 102 75-125103 1500ND510 514 Lead ug/L 500 101 75-125102 1500ND503 509 Nickel ug/L 500 101 75-125102 1500ND505 510 Selenium ug/L 500 104 75-125104 1500ND518 522 Silver ug/L 250 103 75-125103 0250ND257 258 Thallium ug/L 500 101 75-125103 1500ND509 515 Vanadium ug/L 500 101 75-125102 1500ND508 512 Zinc ug/L 500 101 75-125102 1500ND515 521 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219475MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4219476 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 105 75-125104 1500ND525 522 Arsenic ug/L 500 105 75-125105 0500ND526 525 Barium ug/L 500 107 75-125107 0500ND539 541 Beryllium ug/L 500 106 75-125105 0500ND529 527 Cadmium ug/L 500 104 75-125104 0500ND519 518 Chromium ug/L 500 105 75-125105 0500ND528 526 Cobalt ug/L 500 104 75-125104 0500ND520 519 Copper ug/L 500 105 75-125105 0500ND524 524 Lead ug/L 500 103 75-125103 0500ND515 513 Nickel ug/L 500 103 75-125103 0500ND514 514 Selenium ug/L 500 107 75-125106 1500ND533 529 Silver ug/L 250 106 75-125105 1250ND264 262 Thallium ug/L 500 105 75-125104 1500ND526 521 Vanadium ug/L 500 104 75-125104 0500ND520 519 Zinc ug/L 500 103 75-125103 0500ND520 520 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 816086 EPA 8260D EPA 8260D 8260D MSV Low Level Landfill Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699888001, 92699888002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4223992 Associated Lab Samples:92699888001, 92699888002 Matrix: Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 11/29/23 13:59 1,1,1-Trichloroethane ug/L ND 1.0 11/29/23 13:59 1,1,2,2-Tetrachloroethane ug/L ND 1.0 11/29/23 13:59 1,1,2-Trichloroethane ug/L ND 1.0 11/29/23 13:59 1,1-Dichloroethane ug/L ND 1.0 11/29/23 13:59 1,1-Dichloroethene ug/L ND 1.0 11/29/23 13:59 1,2,3-Trichloropropane ug/L ND 1.0 11/29/23 13:59 1,2-Dichlorobenzene ug/L ND 1.0 11/29/23 13:59 1,2-Dichloroethane ug/L ND 1.0 11/29/23 13:59 1,2-Dichloropropane ug/L ND 1.0 11/29/23 13:59 1,4-Dichlorobenzene ug/L ND 1.0 11/29/23 13:59 2-Butanone (MEK)ug/L ND 5.0 11/29/23 13:59 2-Hexanone ug/L ND 5.0 11/29/23 13:59 4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 11/29/23 13:59 Acetone ug/L ND 25.0 11/29/23 13:59 Acrylonitrile ug/L ND 10.0 11/29/23 13:59 Benzene ug/L ND 1.0 11/29/23 13:59 Bromochloromethane ug/L ND 1.0 11/29/23 13:59 Bromodichloromethane ug/L ND 1.0 11/29/23 13:59 Bromoform ug/L ND 1.0 11/29/23 13:59 Bromomethane ug/L ND 2.0 11/29/23 13:59 Carbon disulfide ug/L ND 2.0 11/29/23 13:59 Carbon tetrachloride ug/L ND 1.0 11/29/23 13:59 Chlorobenzene ug/L ND 1.0 11/29/23 13:59 Chloroethane ug/L ND 1.0 11/29/23 13:59 Chloroform ug/L ND 1.0 11/29/23 13:59 Chloromethane ug/L ND 1.0 11/29/23 13:59 cis-1,2-Dichloroethene ug/L ND 1.0 11/29/23 13:59 cis-1,3-Dichloropropene ug/L ND 1.0 11/29/23 13:59 Dibromochloromethane ug/L ND 1.0 11/29/23 13:59 Dibromomethane ug/L ND 1.0 11/29/23 13:59 Ethylbenzene ug/L ND 1.0 11/29/23 13:59 Iodomethane ug/L ND 20.0 11/29/23 13:59 m&p-Xylene ug/L ND 2.0 11/29/23 13:59 Methylene Chloride ug/L ND 5.0 11/29/23 13:59 Naphthalene ug/L ND 1.0 11/29/23 13:59 o-Xylene ug/L ND 1.0 11/29/23 13:59 Styrene ug/L ND 1.0 11/29/23 13:59 Tetrachloroethene ug/L ND 1.0 11/29/23 13:59 Toluene ug/L ND 1.0 11/29/23 13:59 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4223992 Associated Lab Samples:92699888001, 92699888002 Matrix: Water Analyzed trans-1,2-Dichloroethene ug/L ND 1.0 11/29/23 13:59 trans-1,3-Dichloropropene ug/L ND 1.0 11/29/23 13:59 trans-1,4-Dichloro-2-butene ug/L ND 1.0 11/29/23 13:59 Trichloroethene ug/L ND 1.0 11/29/23 13:59 Trichlorofluoromethane ug/L ND 1.0 11/29/23 13:59 Vinyl acetate ug/L ND 2.0 11/29/23 13:59 Vinyl chloride ug/L ND 1.0 v211/29/23 13:59 Xylene (Total)ug/L ND 1.0 11/29/23 13:59 1,2-Dichloroethane-d4 (S)%96 70-130 11/29/23 13:59 4-Bromofluorobenzene (S)%104 70-130 11/29/23 13:59 Toluene-d8 (S)%99 70-130 11/29/23 13:59 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4223993LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 19.820 99 70-130 1,1,1-Trichloroethane ug/L 19.920 99 70-130 1,1,2,2-Tetrachloroethane ug/L 20.020 100 70-130 1,1,2-Trichloroethane ug/L 19.720 98 70-130 1,1-Dichloroethane ug/L 19.220 96 70-130 1,1-Dichloroethene ug/L 20.820 104 69-131 1,2,3-Trichloropropane ug/L 19.620 98 70-130 1,2-Dichlorobenzene ug/L 19.820 99 70-130 1,2-Dichloroethane ug/L 19.520 97 70-130 1,2-Dichloropropane ug/L 19.620 98 70-130 1,4-Dichlorobenzene ug/L 19.220 96 70-130 2-Butanone (MEK)ug/L 37.540 94 67-133 2-Hexanone ug/L 39.840 99 70-133 4-Methyl-2-pentanone (MIBK)ug/L 38.140 95 70-130 Acetone ug/L 37.140 93 67-130 Acrylonitrile ug/L 95.9100 96 70-130 Benzene ug/L 18.820 94 70-130 Bromochloromethane ug/L 20.220 101 70-130 Bromodichloromethane ug/L 18.520 93 70-130 Bromoform ug/L 16.220 81 70-133 Bromomethane ug/L 17.420 87 41-148 Carbon disulfide ug/L 20.620 103 70-131 Carbon tetrachloride ug/L 20.320 102 70-130 Chlorobenzene ug/L 19.420 97 70-130 Chloroethane ug/L 18.520 93 41-157 Chloroform ug/L 19.720 99 70-130 Chloromethane ug/L 18.520 92 59-141 cis-1,2-Dichloroethene ug/L 19.320 97 70-130 cis-1,3-Dichloropropene ug/L 19.220 96 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4223993LABORATORY CONTROL SAMPLE: LCSSpike Dibromochloromethane ug/L 18.320 91 70-130 Dibromomethane ug/L 19.920 99 70-130 Ethylbenzene ug/L 19.820 99 70-130 Iodomethane ug/L 37.540 94 57-140 m&p-Xylene ug/L 40.340 101 70-130 Methylene Chloride ug/L 19.920 99 62-130 Naphthalene ug/L 19.920 100 70-135 o-Xylene ug/L 19.920 100 70-130 Styrene ug/L 19.720 98 70-130 Tetrachloroethene ug/L 19.920 100 70-130 Toluene ug/L 19.020 95 70-130 trans-1,2-Dichloroethene ug/L 20.020 100 70-130 trans-1,3-Dichloropropene ug/L 19.120 95 70-130 trans-1,4-Dichloro-2-butene ug/L 20.720 104 57-149 Trichloroethene ug/L 19.820 99 70-130 Trichlorofluoromethane ug/L 19.320 96 57-130 Vinyl acetate ug/L 38.540 96 70-141 Vinyl chloride ug/L 15.5 v22077 66-140 Xylene (Total)ug/L 60.260 100 70-130 1,2-Dichloroethane-d4 (S)%102 70-130 4-Bromofluorobenzene (S)%102 70-130 Toluene-d8 (S)%99 70-130 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 4223995MATRIX SPIKE SAMPLE: MSSpike Result 92699888002 1,1,1,2-Tetrachloroethane ug/L 24.420 122 70-146ND 1,1,1-Trichloroethane ug/L 26.620 133 70-150ND 1,1,2,2-Tetrachloroethane ug/L 24.120 120 66-144ND 1,1,2-Trichloroethane ug/L 24.720 124 70-142ND 1,1-Dichloroethane ug/L 27.120 129 68-1501.3 1,1-Dichloroethene ug/L 28.320 142 64-162ND 1,2,3-Trichloropropane ug/L 22.520 112 66-144ND 1,2-Dichlorobenzene ug/L 23.320 117 70-142ND 1,2-Dichloroethane ug/L 25.120 125 68-145ND 1,2-Dichloropropane ug/L 25.220 126 70-144ND 1,4-Dichlorobenzene ug/L 24.120 117 70-140ND 2-Butanone (MEK)ug/L 49.640 124 57-156ND 2-Hexanone ug/L 47.840 119 62-153ND 4-Methyl-2-pentanone (MIBK)ug/L 49.140 123 65-144ND Acetone ug/L 47.340 118 49-162ND Acrylonitrile ug/L 123100 123 59-155ND Benzene ug/L 24.920 125 68-144ND Bromochloromethane ug/L 24.720 124 70-148ND Bromodichloromethane ug/L 24.320 122 70-141ND REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 4223995MATRIX SPIKE SAMPLE: MSSpike Result 92699888002 Bromoform ug/L 23.320 116 59-144ND Bromomethane ug/L 26.820 134 23-190ND Carbon disulfide ug/L 28.720 144 64-160ND Carbon tetrachloride ug/L 28.120 140 70-147ND Chlorobenzene ug/L 24.020 117 70-143ND Chloroethane ug/L 27.120 136 55-190ND Chloroform ug/L 25.020 125 67-148ND Chloromethane ug/L 27.520 138 38-180ND cis-1,2-Dichloroethene ug/L 30.520 131 67-1514.2 cis-1,3-Dichloropropene ug/L 24.320 122 70-142ND Dibromochloromethane ug/L 23.720 119 68-140ND Dibromomethane ug/L 24.020 120 70-142ND Ethylbenzene ug/L 23.620 118 70-145ND Iodomethane ug/L 49.340 123 37-160ND m&p-Xylene ug/L 47.440 118 70-148ND Methylene Chloride ug/L 25.720 128 54-149ND Naphthalene ug/L 23.820 119 62-154ND o-Xylene ug/L 23.320 116 70-145ND Styrene ug/L 18.720 93 70-147ND Tetrachloroethene ug/L 23.420 117 70-145ND Toluene ug/L 24.420 122 65-146ND trans-1,2-Dichloroethene ug/L 26.020 130 69-155ND trans-1,3-Dichloropropene ug/L 24.820 124 70-142ND trans-1,4-Dichloro-2-butene ug/L 29.020 145 39-149ND Trichloroethene ug/L 25.420 127 70-152ND Trichlorofluoromethane ug/L 27.020 135 60-158ND Vinyl acetate ug/L 46.740 117 56-157ND Vinyl chloride ug/L 26.020 130 51-178ND Xylene (Total)ug/L 70.660 118 70-146ND 1,2-Dichloroethane-d4 (S)%103 70-130 4-Bromofluorobenzene (S)%102 70-130 Toluene-d8 (S)%100 70-130 Parameter Units Dup Result QualifiersRPDResult 92699888001 4223994SAMPLE DUPLICATE: 1,1,1,2-Tetrachloroethane ug/L NDND 1,1,1-Trichloroethane ug/L NDND 1,1,2,2-Tetrachloroethane ug/L NDND 1,1,2-Trichloroethane ug/L NDND 1,1-Dichloroethane ug/L NDND 1,1-Dichloroethene ug/L NDND 1,2,3-Trichloropropane ug/L NDND 1,2-Dichlorobenzene ug/L .48JND 1,2-Dichloroethane ug/L NDND REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Dup Result QualifiersRPDResult 92699888001 4223994SAMPLE DUPLICATE: 1,2-Dichloropropane ug/L NDND 1,4-Dichlorobenzene ug/L 6.3 115.7 2-Butanone (MEK)ug/L NDND 2-Hexanone ug/L NDND 4-Methyl-2-pentanone (MIBK)ug/L NDND Acetone ug/L NDND Acrylonitrile ug/L NDND Benzene ug/L 4.8 184.0 Bromochloromethane ug/L NDND Bromodichloromethane ug/L NDND Bromoform ug/L NDND Bromomethane ug/L NDND Carbon disulfide ug/L NDND Carbon tetrachloride ug/L NDND Chlorobenzene ug/L 1.6 241.3 Chloroethane ug/L NDND Chloroform ug/L NDND Chloromethane ug/L NDND cis-1,2-Dichloroethene ug/L NDND cis-1,3-Dichloropropene ug/L NDND Dibromochloromethane ug/L NDND Dibromomethane ug/L NDND Ethylbenzene ug/L NDND Iodomethane ug/L NDND m&p-Xylene ug/L NDND Methylene Chloride ug/L NDND Naphthalene ug/L 2.1 301.5 o-Xylene ug/L NDND Styrene ug/L NDND Tetrachloroethene ug/L NDND Toluene ug/L NDND trans-1,2-Dichloroethene ug/L NDND trans-1,3-Dichloropropene ug/L NDND trans-1,4-Dichloro-2-butene ug/L NDND Trichloroethene ug/L NDND Trichlorofluoromethane ug/L NDND Vinyl acetate ug/L NDND Vinyl chloride ug/L NDND Xylene (Total)ug/L NDND 1,2-Dichloroethane-d4 (S)%10799 4-Bromofluorobenzene (S)%10399 Toluene-d8 (S)%9899 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 816395 EPA 8260D EPA 8260D 8260D MSV Low Level Landfill Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225648 Associated Lab Samples:92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Matrix: Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 11/30/23 12:05 1,1,1-Trichloroethane ug/L ND 1.0 11/30/23 12:05 1,1,2,2-Tetrachloroethane ug/L ND 1.0 11/30/23 12:05 1,1,2-Trichloroethane ug/L ND 1.0 11/30/23 12:05 1,1-Dichloroethane ug/L ND 1.0 11/30/23 12:05 1,1-Dichloroethene ug/L ND 1.0 11/30/23 12:05 1,2,3-Trichloropropane ug/L ND 1.0 11/30/23 12:05 1,2-Dichlorobenzene ug/L ND 1.0 11/30/23 12:05 1,2-Dichloroethane ug/L ND 1.0 11/30/23 12:05 1,2-Dichloropropane ug/L ND 1.0 11/30/23 12:05 1,4-Dichlorobenzene ug/L ND 1.0 11/30/23 12:05 2-Butanone (MEK)ug/L ND 5.0 11/30/23 12:05 2-Hexanone ug/L ND 5.0 11/30/23 12:05 4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 11/30/23 12:05 Acetone ug/L ND 25.0 11/30/23 12:05 Acrylonitrile ug/L ND 10.0 11/30/23 12:05 Benzene ug/L ND 1.0 11/30/23 12:05 Bromochloromethane ug/L ND 1.0 11/30/23 12:05 Bromodichloromethane ug/L ND 1.0 11/30/23 12:05 Bromoform ug/L ND 1.0 11/30/23 12:05 Bromomethane ug/L ND 2.0 v211/30/23 12:05 Carbon disulfide ug/L ND 2.0 11/30/23 12:05 Carbon tetrachloride ug/L ND 1.0 11/30/23 12:05 Chlorobenzene ug/L ND 1.0 11/30/23 12:05 Chloroethane ug/L ND 1.0 11/30/23 12:05 Chloroform ug/L ND 1.0 11/30/23 12:05 Chloromethane ug/L ND 1.0 11/30/23 12:05 cis-1,2-Dichloroethene ug/L ND 1.0 11/30/23 12:05 cis-1,3-Dichloropropene ug/L ND 1.0 11/30/23 12:05 Dibromochloromethane ug/L ND 1.0 11/30/23 12:05 Dibromomethane ug/L ND 1.0 11/30/23 12:05 Ethylbenzene ug/L ND 1.0 11/30/23 12:05 Iodomethane ug/L ND 20.0 v211/30/23 12:05 m&p-Xylene ug/L ND 2.0 11/30/23 12:05 Methylene Chloride ug/L ND 5.0 11/30/23 12:05 Naphthalene ug/L ND 1.0 11/30/23 12:05 o-Xylene ug/L ND 1.0 11/30/23 12:05 Styrene ug/L ND 1.0 11/30/23 12:05 Tetrachloroethene ug/L ND 1.0 11/30/23 12:05 Toluene ug/L ND 1.0 11/30/23 12:05 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225648 Associated Lab Samples:92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Matrix: Water Analyzed trans-1,2-Dichloroethene ug/L ND 1.0 11/30/23 12:05 trans-1,3-Dichloropropene ug/L ND 1.0 11/30/23 12:05 trans-1,4-Dichloro-2-butene ug/L ND 1.0 11/30/23 12:05 Trichloroethene ug/L ND 1.0 11/30/23 12:05 Trichlorofluoromethane ug/L ND 1.0 11/30/23 12:05 Vinyl acetate ug/L ND 2.0 11/30/23 12:05 Vinyl chloride ug/L ND 1.0 11/30/23 12:05 Xylene (Total)ug/L ND 1.0 11/30/23 12:05 1,2-Dichloroethane-d4 (S)%93 70-130 11/30/23 12:05 4-Bromofluorobenzene (S)%102 70-130 11/30/23 12:05 Toluene-d8 (S)%105 70-130 11/30/23 12:05 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225649LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 20.420 102 70-130 1,1,1-Trichloroethane ug/L 20.420 102 70-130 1,1,2,2-Tetrachloroethane ug/L 19.820 99 70-130 1,1,2-Trichloroethane ug/L 19.820 99 70-130 1,1-Dichloroethane ug/L 18.620 93 70-130 1,1-Dichloroethene ug/L 19.620 98 69-131 1,2,3-Trichloropropane ug/L 19.420 97 70-130 1,2-Dichlorobenzene ug/L 20.720 103 70-130 1,2-Dichloroethane ug/L 19.020 95 70-130 1,2-Dichloropropane ug/L 19.520 97 70-130 1,4-Dichlorobenzene ug/L 20.320 102 70-130 2-Butanone (MEK)ug/L 39.540 99 67-133 2-Hexanone ug/L 44.240 110 70-133 4-Methyl-2-pentanone (MIBK)ug/L 42.340 106 70-130 Acetone ug/L 39.440 99 67-130 Acrylonitrile ug/L 93.7100 94 70-130 Benzene ug/L 20.020 100 70-130 Bromochloromethane ug/L 19.620 98 70-130 Bromodichloromethane ug/L 19.320 96 70-130 Bromoform ug/L 19.820 99 70-133 Bromomethane ug/L 16.5 v32082 41-148 Carbon disulfide ug/L 19.420 97 70-131 Carbon tetrachloride ug/L 20.620 103 70-130 Chlorobenzene ug/L 20.320 102 70-130 Chloroethane ug/L 19.720 98 41-157 Chloroform ug/L 19.020 95 70-130 Chloromethane ug/L 18.920 94 59-141 cis-1,2-Dichloroethene ug/L 18.720 93 70-130 cis-1,3-Dichloropropene ug/L 20.220 101 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 28 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225649LABORATORY CONTROL SAMPLE: LCSSpike Dibromochloromethane ug/L 19.820 99 70-130 Dibromomethane ug/L 20.020 100 70-130 Ethylbenzene ug/L 20.120 100 70-130 Iodomethane ug/L 34.9 v34087 57-140 m&p-Xylene ug/L 41.040 102 70-130 Methylene Chloride ug/L 17.320 87 62-130 Naphthalene ug/L 21.920 110 70-135 o-Xylene ug/L 20.120 100 70-130 Styrene ug/L 20.720 103 70-130 Tetrachloroethene ug/L 19.620 98 70-130 Toluene ug/L 19.420 97 70-130 trans-1,2-Dichloroethene ug/L 19.520 97 70-130 trans-1,3-Dichloropropene ug/L 20.220 101 70-130 trans-1,4-Dichloro-2-butene ug/L 20.320 102 57-149 Trichloroethene ug/L 20.920 104 70-130 Trichlorofluoromethane ug/L 21.820 109 57-130 Vinyl acetate ug/L 35.240 88 70-141 Vinyl chloride ug/L 17.320 87 66-140 Xylene (Total)ug/L 61.160 102 70-130 1,2-Dichloroethane-d4 (S)%96 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4225650MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4225651 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 128 70-146127 020ND25.6 25.5 1,1,1-Trichloroethane ug/L 20 113 70-150114 120ND22.6 22.8 1,1,2,2-Tetrachloroethane ug/L 20 117 66-144115 220ND23.3 23.0 1,1,2-Trichloroethane ug/L 20 118 70-142121 320ND23.5 24.1 1,1-Dichloroethane ug/L 20 101 68-150100 120ND20.2 20.1 1,1-Dichloroethene ug/L 20 81 64-16284 320ND16.3 16.8 1,2,3-Trichloropropane ug/L 20 114 66-144108 520ND22.7 21.6 1,2-Dichlorobenzene ug/L 20 120 70-142122 120ND24.0 24.4 1,2-Dichloroethane ug/L 20 108 68-145106 220ND21.7 21.2 1,2-Dichloropropane ug/L 20 112 70-144112 020ND22.5 22.4 1,4-Dichlorobenzene ug/L 20 118 70-140119 120ND23.5 23.9 2-Butanone (MEK)ug/L 40 105 57-156104 140ND41.8 41.5 2-Hexanone ug/L 40 123 62-153118 440ND49.3 47.2 4-Methyl-2-pentanone (MIBK) ug/L 40 117 65-144115 240ND46.6 45.8 Acetone ug/L 40 90 49-16290 040ND36.2 36.1 Acrylonitrile ug/L 100 97 59-15594 3100ND96.7 94.1 Benzene ug/L 20 107 68-144109 220ND21.4 21.7 Bromochloromethane ug/L 20 109 70-148108 120ND21.8 21.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 29 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4225650MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4225651 MSD Result MSD % Rec RPD MSDMS Spike Conc. Bromodichloromethane ug/L 20 117 70-141121 320ND23.4 24.2 Bromoform ug/L 20 124 59-144121 220ND24.8 24.3 Bromomethane ug/L v3204723-19046 220ND9.5 9.3 Carbon disulfide ug/L 20 64 64-16065 220ND12.8 13.1 Carbon tetrachloride ug/L 20 117 70-147119 220ND23.4 23.7 Chlorobenzene ug/L 20 122 70-143122 020ND24.4 24.4 Chloroethane ug/L 20 58 55-19057 120ND11.5 11.4 Chloroform ug/L 20 110 67-148109 120ND22.0 21.8 Chloromethane ug/L M1201138-18011 220ND2.2 2.3 cis-1,2-Dichloroethene ug/L 20 104 67-151105 120ND20.9 21.0 cis-1,3-Dichloropropene ug/L 20 116 70-142120 320ND23.3 24.0 Dibromochloromethane ug/L 20 120 68-140121 120ND24.0 24.1 Dibromomethane ug/L 20 119 70-142120 120ND23.7 24.0 Ethylbenzene ug/L 20 121 70-145120 120ND24.2 24.0 Iodomethane ug/L 40 69 37-16072 440ND27.8 28.8 m&p-Xylene ug/L 40 122 70-148122 040ND48.8 49.0 Methylene Chloride ug/L 20 86 54-14989 320ND17.6 18.0 Naphthalene ug/L 20 121 62-154122 120ND24.3 24.5 o-Xylene ug/L 20 122 70-145119 320ND24.5 23.7 Styrene ug/L 20 124 70-147124 020ND24.8 24.8 Tetrachloroethene ug/L 20 115 70-145115 020ND23.0 22.9 Toluene ug/L 20 115 65-146118 320ND23.0 23.7 trans-1,2-Dichloroethene ug/L 20 97 69-15599 220ND19.4 19.8 trans-1,3-Dichloropropene ug/L 20 122 70-142121 120ND24.5 24.1 trans-1,4-Dichloro-2-butene ug/L 20 111 39-149104 720ND22.3 20.8 Trichloroethene ug/L 20 121 70-152123 220ND24.1 24.5 Trichlorofluoromethane ug/L 20 76 60-15876 020ND15.2 15.3 Vinyl acetate ug/L 40 85 56-15783 340ND33.9 33.0 Vinyl chloride ug/L M1202251-17822 120ND4.3 4.4 Xylene (Total)ug/L 60 122 70-146121 160ND73.3 72.7 1,2-Dichloroethane-d4 (S)%99 70-13097 4-Bromofluorobenzene (S)%101 70-13099 Toluene-d8 (S)%98 70-13099 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 30 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815205 EPA 8260D Mod. EPA 8260D Mod. 8260D MSV SIM Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220270 Associated Lab Samples:92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Matrix: Water Analyzed 1,4-Dioxane (p-Dioxane)ug/L ND 2.0 11/22/23 17:58 1,2-Dichloroethane-d4 (S)%88 67-130 11/22/23 17:58 Toluene-d8 (S)%90 70-130 11/22/23 17:58 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220271LABORATORY CONTROL SAMPLE: LCSSpike 1,4-Dioxane (p-Dioxane)ug/L 17.120 86 70-130 1,2-Dichloroethane-d4 (S)%87 67-130 Toluene-d8 (S)%92 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220272MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220273 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 85 55-13790 620ND16.9 17.9 1,2-Dichloroethane-d4 (S)%89 67-13090 Toluene-d8 (S)%92 70-13092 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220274MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220275 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 96 55-13795 020ND19.1 19.1 1,2-Dichloroethane-d4 (S)%88 67-13089 Toluene-d8 (S)%91 70-13092 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 31 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815360 EPA 8260D Mod. EPA 8260D Mod. 8260D MSV SIM Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699888001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220870 Associated Lab Samples:92699888001 Matrix: Water Analyzed 1,4-Dioxane (p-Dioxane)ug/L ND 2.0 11/28/23 14:20 1,2-Dichloroethane-d4 (S)%97 67-130 11/28/23 14:20 Toluene-d8 (S)%101 70-130 11/28/23 14:20 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220871LABORATORY CONTROL SAMPLE: LCSSpike 1,4-Dioxane (p-Dioxane)ug/L 23.020 115 70-130 1,2-Dichloroethane-d4 (S)%98 67-130 Toluene-d8 (S)%101 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220872MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700242002 4220873 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 92 55-13790 320ND18.7 18.2 1,2-Dichloroethane-d4 (S)%100 67-130100 Toluene-d8 (S)%104 70-130103 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 32 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815250 SM 4500-S2D-2011 SM 4500-S2D-2011 4500S2D Sulfide Water Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699888001, 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220621 Associated Lab Samples:92699888001, 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Matrix: Water Analyzed Sulfide mg/L ND 0.10 11/23/23 04:03 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220622LABORATORY CONTROL SAMPLE: LCSSpike Sulfide mg/L 0.520.5 105 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220623MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699313003 4220624 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 103 80-120106 40.5ND 0.51 0.53 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220637MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220638 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 102 80-120106 30.5ND 0.51 0.53 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 33 of 41 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815297 SM 3500-Cr B-2011 SM 3500-Cr B-2011 Chromium, Hexavalent by SM3500-Cr B-2011 Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220712 Associated Lab Samples:92699888002, 92699888003, 92699888004, 92699888005, 92699888006, 92699888007 Matrix: Water Analyzed Chromium, Hexavalent mg/L ND 0.010 11/25/23 15:02 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220713LABORATORY CONTROL SAMPLE: LCSSpike Chromium, Hexavalent mg/L 0.260.25 104 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220714MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220715 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chromium, Hexavalent mg/L M10.25 75 90-11079 50.250.010 0.20 0.21 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220716MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220717 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chromium, Hexavalent mg/L 0.25 99 90-11096 30.250.011 0.26 0.25 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 34 of 41 #=QL# QUALIFIERS Pace Project No.: Project: 92699888 OCSWM FALL-NORTH DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Analysis conducted outside the EPA method holding time.H1 Reanalysis conducted in excess of EPA method holding time. Results confirm original analysis performed in hold time.H5 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 The continuing calibration verification was below the method acceptance limit. The analyte was not detected in the associated samples and the sensitivity of the instrument was verified with a reporting limit check standard.v2 The continuing calibration verification was below the method acceptance limit. Any detection for the analyte in the associated samples may have low bias.v3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 35 of 41 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92699888 OCSWM FALL-NORTH Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92699888001 815073 8151836801-MW20 EPA 3010A EPA 6010D 92699888002 815073 8151836801-MW21D EPA 3010A EPA 6010D 92699888003 815073 8151836801-MW21D2 EPA 3010A EPA 6010D 92699888004 815073 8151836801-MW21S EPA 3010A EPA 6010D 92699888005 815073 8151836801-MW23 EPA 3010A EPA 6010D 92699888006 815073 8151836801-MW24 EPA 3010A EPA 6010D 92699888007 815073 8151836801-MW301 EPA 3010A EPA 6010D 92699888001 815270 8152936801-MW20 EPA 7470A EPA 7470A 92699888002 815270 8152936801-MW21D EPA 7470A EPA 7470A 92699888003 815270 8152936801-MW21D2 EPA 7470A EPA 7470A 92699888004 815270 8152936801-MW21S EPA 7470A EPA 7470A 92699888005 815270 8152936801-MW23 EPA 7470A EPA 7470A 92699888006 815270 8152936801-MW24 EPA 7470A EPA 7470A 92699888007 815270 8152936801-MW301 EPA 7470A EPA 7470A 92699888001 8160866801-MW20 EPA 8260D 92699888002 8160866801-MW21D EPA 8260D 92699888003 8163956801-MW21D2 EPA 8260D 92699888004 8163956801-MW21S EPA 8260D 92699888005 8163956801-MW23 EPA 8260D 92699888006 8163956801-MW24 EPA 8260D 92699888007 8163956801-MW301 EPA 8260D 92699888001 8153606801-MW20 EPA 8260D Mod. 92699888002 8152056801-MW21D EPA 8260D Mod. 92699888003 8152056801-MW21D2 EPA 8260D Mod. 92699888004 8152056801-MW21S EPA 8260D Mod. 92699888005 8152056801-MW23 EPA 8260D Mod. 92699888006 8152056801-MW24 EPA 8260D Mod. 92699888007 8152056801-MW301 EPA 8260D Mod. 92699888001 8152506801-MW20 SM 4500-S2D-2011 92699888002 8152506801-MW21D SM 4500-S2D-2011 92699888003 8152506801-MW21D2 SM 4500-S2D-2011 92699888004 8152506801-MW21S SM 4500-S2D-2011 92699888005 8152506801-MW23 SM 4500-S2D-2011 92699888006 8152506801-MW24 SM 4500-S2D-2011 92699888007 8152506801-MW301 SM 4500-S2D-2011 92699888002 8152976801-MW21D SM 3500-Cr B-2011 92699888003 8152976801-MW21D2 SM 3500-Cr B-2011 92699888004 8152976801-MW21S SM 3500-Cr B-2011 92699888005 8152976801-MW23 SM 3500-Cr B-2011 92699888006 8152976801-MW24 SM 3500-Cr B-2011 92699888007 8152976801-MW301 SM 3500-Cr B-2011 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 36 of 41 Page 37 of 41 Page 38 of 41 Page 39 of 41 Page 40 of 41 Page 41 of 41 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 7: Shared Monitoring Wells (MW-04, MW-110S, MW-110D) #=CL# December 04, 2023 LIMS USE: FR - DEBORAH COAKLEY LIMS OBJECT ID: 92699898 92699898 Project: Pace Project No.: RE: Deborah Ann Coakley TRC Companies 1030 Wilmer Ave. Suite 100 Richmond, VA 23227 OCSWM FALL-NORTH (MW-04) Dear Deborah Coakley: Enclosed are the analytical results for sample(s) received by the laboratory on November 20, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Matthew Brainard matthew.brainard@pacelabs.com Project Manager 704-977-0942 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 27 #=CP# CERTIFICATIONS Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 27 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92699898001 6801-MW04 EPA 6010D 17 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CSAS EPA 8260D Mod.3 PASI-CTEG SM 2320B-2011 1 PASI-ASMS SM 2540C-2015 1 PASI-AJAY SM 4500-S2D-2011 1 PASI-AJP1 EPA 300.0 Rev 2.1 1993 2 PASI-ACDC SM 3500-Cr B-2011 1 PASI-AJMH1 92699898002 TRIP BLANK EPA 8260D 51 PASI-CSAS EPA 8260D Mod.3 PASI-CTEG PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Sample: 6801-MW04 Lab ID: 92699898001 Collected: 11/20/23 07:35 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 12:29 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 12:29 7440-38-211/22/23 11:5510.0 1 Barium 80.1 ug/L 12/03/23 12:29 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 12:29 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 12:29 7440-43-911/22/23 11:551.0 1 Chromium ND ug/L 12/03/23 12:29 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 12:29 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 12:29 7440-50-811/22/23 11:555.0 1 Iron 106 ug/L 12/03/23 12:29 7439-89-611/22/23 11:5550.0 1 Lead ND ug/L 12/03/23 12:29 7439-92-111/22/23 11:555.0 1 Manganese ND ug/L 12/03/23 12:29 7439-96-511/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 12:29 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 12:29 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 12:29 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 12:29 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 12:29 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 12:29 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/25/23 10:24 7439-97-611/23/23 16:180.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/23/23 00:24 67-64-125.0 1 Acrylonitrile ND ug/L 11/23/23 00:24 107-13-110.0 1 Benzene ND ug/L 11/23/23 00:24 71-43-21.0 1 Bromochloromethane ND ug/L 11/23/23 00:24 74-97-51.0 1 Bromodichloromethane ND ug/L 11/23/23 00:24 75-27-41.0 1 Bromoform ND ug/L 11/23/23 00:24 75-25-21.0 1 Bromomethane ND ug/L 11/23/23 00:24 74-83-92.0 1 2-Butanone (MEK)ND ug/L 11/23/23 00:24 78-93-35.0 1 Carbon disulfide ND ug/L 11/23/23 00:24 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/23/23 00:24 56-23-51.0 1 Chlorobenzene ND ug/L 11/23/23 00:24 108-90-71.0 1 Chloroethane ND ug/L 11/23/23 00:24 75-00-3 IK1.0 1 Chloroform ND ug/L 11/23/23 00:24 67-66-31.0 1 Chloromethane ND ug/L 11/23/23 00:24 74-87-31.0 1 Dibromochloromethane ND ug/L 11/23/23 00:24 124-48-11.0 1 Dibromomethane ND ug/L 11/23/23 00:24 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/23/23 00:24 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/23/23 00:24 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/23/23 00:24 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/23/23 00:24 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/23/23 00:24 107-06-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Sample: 6801-MW04 Lab ID: 92699898001 Collected: 11/20/23 07:35 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill 1,1-Dichloroethene ND ug/L 11/23/23 00:24 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/23/23 00:24 156-59-21.0 1 trans-1,2-Dichloroethene ND ug/L 11/23/23 00:24 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/23/23 00:24 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/23/23 00:24 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/23/23 00:24 10061-02-61.0 1 Ethylbenzene ND ug/L 11/23/23 00:24 100-41-41.0 1 2-Hexanone ND ug/L 11/23/23 00:24 591-78-65.0 1 Iodomethane ND ug/L 11/23/23 00:24 74-88-420.0 1 Methylene Chloride ND ug/L 11/23/23 00:24 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/23/23 00:24 108-10-15.0 1 Naphthalene ND ug/L 11/23/23 00:24 91-20-31.0 1 Styrene ND ug/L 11/23/23 00:24 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/23/23 00:24 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/23/23 00:24 79-34-51.0 1 Tetrachloroethene ND ug/L 11/23/23 00:24 127-18-41.0 1 Toluene ND ug/L 11/23/23 00:24 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/23/23 00:24 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/23/23 00:24 79-00-51.0 1 Trichloroethene ND ug/L 11/23/23 00:24 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/23/23 00:24 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/23/23 00:24 96-18-41.0 1 Vinyl acetate ND ug/L 11/23/23 00:24 108-05-42.0 1 Vinyl chloride ND ug/L 11/23/23 00:24 75-01-41.0 1 Xylene (Total)ND ug/L 11/23/23 00:24 1330-20-71.0 1 m&p-Xylene ND ug/L 11/23/23 00:24 179601-23-12.0 1 o-Xylene ND ug/L 11/23/23 00:24 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)93 %11/23/23 00:24 460-00-470-130 1 1,2-Dichloroethane-d4 (S)84 %11/23/23 00:24 17060-07-070-130 1 Toluene-d8 (S)96 %11/23/23 00:24 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)ND ug/L 11/22/23 22:58 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %11/22/23 22:58 17060-07-067-130 1 Toluene-d8 (S)93 %11/22/23 22:58 2037-26-570-130 1 Analytical Method: SM 2320B-2011 Pace Analytical Services - Asheville 2320B Alkalinity Alkalinity, Total as CaCO3 30.3 mg/L 11/29/23 13:315.0 1 Analytical Method: SM 2540C-2015 Pace Analytical Services - Asheville 2540C Total Dissolved Solids Total Dissolved Solids 68.0 mg/L 11/27/23 10:25 H125.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Sample: 6801-MW04 Lab ID: 92699898001 Collected: 11/20/23 07:35 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:22 18496-25-80.10 1 Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services - Asheville 300.0 IC Anions 28 Days Chloride 8.0 mg/L 11/22/23 02:50 16887-00-61.0 1 Sulfate ND mg/L 11/22/23 02:50 14808-79-81.0 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent 0.010 mg/L 11/25/23 15:12 18540-29-9 M10.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Sample: TRIP BLANK Lab ID: 92699898002 Collected:Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/22/23 15:37 67-64-1 v225.0 1 Acrylonitrile ND ug/L 11/22/23 15:37 107-13-110.0 1 Benzene ND ug/L 11/22/23 15:37 71-43-21.0 1 Bromochloromethane ND ug/L 11/22/23 15:37 74-97-51.0 1 Bromodichloromethane ND ug/L 11/22/23 15:37 75-27-41.0 1 Bromoform ND ug/L 11/22/23 15:37 75-25-21.0 1 Bromomethane ND ug/L 11/22/23 15:37 74-83-92.0 1 2-Butanone (MEK)ND ug/L 11/22/23 15:37 78-93-35.0 1 Carbon disulfide ND ug/L 11/22/23 15:37 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/22/23 15:37 56-23-51.0 1 Chlorobenzene ND ug/L 11/22/23 15:37 108-90-71.0 1 Chloroethane ND ug/L 11/22/23 15:37 75-00-3 IK1.0 1 Chloroform ND ug/L 11/22/23 15:37 67-66-31.0 1 Chloromethane ND ug/L 11/22/23 15:37 74-87-31.0 1 Dibromochloromethane ND ug/L 11/22/23 15:37 124-48-11.0 1 Dibromomethane ND ug/L 11/22/23 15:37 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/22/23 15:37 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/22/23 15:37 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/22/23 15:37 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/22/23 15:37 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/22/23 15:37 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/22/23 15:37 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/22/23 15:37 156-59-21.0 1 trans-1,2-Dichloroethene ND ug/L 11/22/23 15:37 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/22/23 15:37 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/22/23 15:37 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/22/23 15:37 10061-02-61.0 1 Ethylbenzene ND ug/L 11/22/23 15:37 100-41-41.0 1 2-Hexanone ND ug/L 11/22/23 15:37 591-78-65.0 1 Iodomethane ND ug/L 11/22/23 15:37 74-88-420.0 1 Methylene Chloride ND ug/L 11/22/23 15:37 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/22/23 15:37 108-10-15.0 1 Naphthalene ND ug/L 11/22/23 15:37 91-20-31.0 1 Styrene ND ug/L 11/22/23 15:37 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/22/23 15:37 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/22/23 15:37 79-34-51.0 1 Tetrachloroethene ND ug/L 11/22/23 15:37 127-18-41.0 1 Toluene ND ug/L 11/22/23 15:37 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/22/23 15:37 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/22/23 15:37 79-00-51.0 1 Trichloroethene ND ug/L 11/22/23 15:37 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/22/23 15:37 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/22/23 15:37 96-18-41.0 1 Vinyl acetate ND ug/L 11/22/23 15:37 108-05-42.0 1 Vinyl chloride ND ug/L 11/22/23 15:37 75-01-41.0 1 Xylene (Total)ND ug/L 11/22/23 15:37 1330-20-71.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Sample: TRIP BLANK Lab ID: 92699898002 Collected:Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill m&p-Xylene ND ug/L 11/22/23 15:37 179601-23-12.0 1 o-Xylene ND ug/L 11/22/23 15:37 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)94 %11/22/23 15:37 460-00-470-130 1 1,2-Dichloroethane-d4 (S)89 %11/22/23 15:37 17060-07-070-130 1 Toluene-d8 (S)96 %11/22/23 15:37 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)ND ug/L 11/22/23 22:37 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)90 %11/22/23 22:37 17060-07-067-130 1 Toluene-d8 (S)92 %11/22/23 22:37 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815270 EPA 7470A EPA 7470A 7470 Mercury Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699898001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220654 Associated Lab Samples:92699898001 Matrix: Water Analyzed Mercury ug/L ND 0.20 11/25/23 10:05 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220655LABORATORY CONTROL SAMPLE: LCSSpike Mercury ug/L 2.52.5 99 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220656MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220657 MSD Result MSD % Rec RPD MSDMS Spike Conc. Mercury ug/L 2.5 101 75-125100 02.5ND 2.5 2.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815073 EPA 3010A EPA 6010D 6010 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699898001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4219471 Associated Lab Samples:92699898001 Matrix: Water Analyzed Antimony ug/L ND 5.0 12/03/23 11:26 Arsenic ug/L ND 10.0 12/03/23 11:26 Barium ug/L ND 5.0 12/03/23 11:26 Beryllium ug/L ND 1.0 12/03/23 11:26 Cadmium ug/L ND 1.0 12/03/23 11:26 Chromium ug/L ND 5.0 12/03/23 11:26 Cobalt ug/L ND 5.0 12/03/23 11:26 Copper ug/L ND 5.0 12/03/23 11:26 Iron ug/L ND 50.0 12/03/23 11:26 Lead ug/L ND 5.0 12/03/23 11:26 Manganese ug/L ND 5.0 12/03/23 11:26 Nickel ug/L ND 5.0 12/03/23 11:26 Selenium ug/L ND 10.0 12/03/23 11:26 Silver ug/L ND 5.0 12/03/23 11:26 Thallium ug/L ND 10.0 12/03/23 11:26 Vanadium ug/L ND 5.0 12/03/23 11:26 Zinc ug/L ND 10.0 12/03/23 11:26 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4219472LABORATORY CONTROL SAMPLE: LCSSpike Antimony ug/L 509500 102 80-120 Arsenic ug/L 505500 101 80-120 Barium ug/L 521500 104 80-120 Beryllium ug/L 506500 101 80-120 Cadmium ug/L 510500 102 80-120 Chromium ug/L 510500 102 80-120 Cobalt ug/L 510500 102 80-120 Copper ug/L 512500 102 80-120 Iron ug/L 51905000 104 80-120 Lead ug/L 509500 102 80-120 Manganese ug/L 517500 103 80-120 Nickel ug/L 507500 101 80-120 Selenium ug/L 494500 99 80-120 Silver ug/L 255250 102 80-120 Thallium ug/L 515500 103 80-120 Vanadium ug/L 509500 102 80-120 Zinc ug/L 506500 101 80-120 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4219473MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4219474 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 102 75-125103 1500ND512 515 Arsenic ug/L 500 103 75-125103 0500ND515 516 Barium ug/L 500 102 75-125105 350080.1 589 606 Beryllium ug/L 500 103 75-125104 1500ND516 520 Cadmium ug/L 500 102 75-125102 1500ND508 512 Chromium ug/L 500 103 75-125103 1500ND513 517 Cobalt ug/L 500 102 75-125103 1500ND508 513 Copper ug/L 500 102 75-125103 1500ND510 514 Iron ug/L 5000 102 75-125105 350001065230 5370 Lead ug/L 500 101 75-125102 1500ND503 509 Manganese ug/L 500 102 75-125105 3500ND514 529 Nickel ug/L 500 101 75-125102 1500ND505 510 Selenium ug/L 500 104 75-125104 1500ND518 522 Silver ug/L 250 103 75-125103 0250ND257 258 Thallium ug/L 500 101 75-125103 1500ND509 515 Vanadium ug/L 500 101 75-125102 1500ND508 512 Zinc ug/L 500 101 75-125102 1500ND515 521 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219475MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4219476 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 105 75-125104 1500ND525 522 Arsenic ug/L 500 105 75-125105 0500ND526 525 Barium ug/L 500 107 75-125107 0500ND539 541 Beryllium ug/L 500 106 75-125105 0500ND529 527 Cadmium ug/L 500 104 75-125104 0500ND519 518 Chromium ug/L 500 105 75-125105 0500ND528 526 Cobalt ug/L 500 104 75-125104 0500ND520 519 Copper ug/L 500 105 75-125105 0500ND524 524 Iron ug/L 5000 108 75-125111 350001395530 5670 Lead ug/L 500 103 75-125103 0500ND515 513 Manganese ug/L 500 107 75-125108 1500ND540 543 Nickel ug/L 500 103 75-125103 0500ND514 514 Selenium ug/L 500 107 75-125106 1500ND533 529 Silver ug/L 250 106 75-125105 1250ND264 262 Thallium ug/L 500 105 75-125104 1500ND526 521 Vanadium ug/L 500 104 75-125104 0500ND520 519 Zinc ug/L 500 103 75-125103 0500ND520 520 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815175 EPA 8260D EPA 8260D 8260D MSV Low Level Landfill Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699898001, 92699898002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220008 Associated Lab Samples:92699898001, 92699898002 Matrix: Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 11/22/23 15:01 1,1,1-Trichloroethane ug/L ND 1.0 11/22/23 15:01 1,1,2,2-Tetrachloroethane ug/L ND 1.0 11/22/23 15:01 1,1,2-Trichloroethane ug/L ND 1.0 11/22/23 15:01 1,1-Dichloroethane ug/L ND 1.0 11/22/23 15:01 1,1-Dichloroethene ug/L ND 1.0 11/22/23 15:01 1,2,3-Trichloropropane ug/L ND 1.0 11/22/23 15:01 1,2-Dichlorobenzene ug/L ND 1.0 11/22/23 15:01 1,2-Dichloroethane ug/L ND 1.0 11/22/23 15:01 1,2-Dichloropropane ug/L ND 1.0 11/22/23 15:01 1,4-Dichlorobenzene ug/L ND 1.0 11/22/23 15:01 2-Butanone (MEK)ug/L ND 5.0 11/22/23 15:01 2-Hexanone ug/L ND 5.0 11/22/23 15:01 4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 11/22/23 15:01 Acetone ug/L ND 25.0 v211/22/23 15:01 Acrylonitrile ug/L ND 10.0 11/22/23 15:01 Benzene ug/L ND 1.0 11/22/23 15:01 Bromochloromethane ug/L ND 1.0 11/22/23 15:01 Bromodichloromethane ug/L ND 1.0 11/22/23 15:01 Bromoform ug/L ND 1.0 11/22/23 15:01 Bromomethane ug/L ND 2.0 11/22/23 15:01 Carbon disulfide ug/L ND 2.0 11/22/23 15:01 Carbon tetrachloride ug/L ND 1.0 11/22/23 15:01 Chlorobenzene ug/L ND 1.0 11/22/23 15:01 Chloroethane ug/L ND 1.0 IK11/22/23 15:01 Chloroform ug/L ND 1.0 11/22/23 15:01 Chloromethane ug/L ND 1.0 11/22/23 15:01 cis-1,2-Dichloroethene ug/L ND 1.0 11/22/23 15:01 cis-1,3-Dichloropropene ug/L ND 1.0 11/22/23 15:01 Dibromochloromethane ug/L ND 1.0 11/22/23 15:01 Dibromomethane ug/L ND 1.0 11/22/23 15:01 Ethylbenzene ug/L ND 1.0 11/22/23 15:01 Iodomethane ug/L ND 20.0 11/22/23 15:01 m&p-Xylene ug/L ND 2.0 11/22/23 15:01 Methylene Chloride ug/L ND 5.0 11/22/23 15:01 Naphthalene ug/L ND 1.0 11/22/23 15:01 o-Xylene ug/L ND 1.0 11/22/23 15:01 Styrene ug/L ND 1.0 11/22/23 15:01 Tetrachloroethene ug/L ND 1.0 11/22/23 15:01 Toluene ug/L ND 1.0 11/22/23 15:01 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220008 Associated Lab Samples:92699898001, 92699898002 Matrix: Water Analyzed trans-1,2-Dichloroethene ug/L ND 1.0 11/22/23 15:01 trans-1,3-Dichloropropene ug/L ND 1.0 11/22/23 15:01 trans-1,4-Dichloro-2-butene ug/L ND 1.0 11/22/23 15:01 Trichloroethene ug/L ND 1.0 11/22/23 15:01 Trichlorofluoromethane ug/L ND 1.0 11/22/23 15:01 Vinyl acetate ug/L ND 2.0 11/22/23 15:01 Vinyl chloride ug/L ND 1.0 11/22/23 15:01 Xylene (Total)ug/L ND 1.0 11/22/23 15:01 1,2-Dichloroethane-d4 (S)%88 70-130 11/22/23 15:01 4-Bromofluorobenzene (S)%96 70-130 11/22/23 15:01 Toluene-d8 (S)%96 70-130 11/22/23 15:01 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220009LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 18.120 90 70-130 1,1,1-Trichloroethane ug/L 18.220 91 70-130 1,1,2,2-Tetrachloroethane ug/L 19.120 96 70-130 1,1,2-Trichloroethane ug/L 19.320 96 70-130 1,1-Dichloroethane ug/L 17.020 85 70-130 1,1-Dichloroethene ug/L 19.620 98 69-131 1,2,3-Trichloropropane ug/L 18.220 91 70-130 1,2-Dichlorobenzene ug/L 18.920 94 70-130 1,2-Dichloroethane ug/L 17.820 89 70-130 1,2-Dichloropropane ug/L 17.520 88 70-130 1,4-Dichlorobenzene ug/L 18.820 94 70-130 2-Butanone (MEK)ug/L 30.340 76 67-133 2-Hexanone ug/L 34.440 86 70-133 4-Methyl-2-pentanone (MIBK)ug/L 34.640 86 70-130 Acetone ug/L 30.5 v34076 67-130 Acrylonitrile ug/L 83.9100 84 70-130 Benzene ug/L 17.720 89 70-130 Bromochloromethane ug/L 18.420 92 70-130 Bromodichloromethane ug/L 17.820 89 70-130 Bromoform ug/L 17.920 89 70-133 Bromomethane ug/L 19.420 97 41-148 Carbon disulfide ug/L 18.520 92 70-131 Carbon tetrachloride ug/L 18.020 90 70-130 Chlorobenzene ug/L 18.920 94 70-130 Chloroethane ug/L 19.8 IK2099 41-157 Chloroform ug/L 18.120 90 70-130 Chloromethane ug/L 16.520 83 59-141 cis-1,2-Dichloroethene ug/L 16.920 85 70-130 cis-1,3-Dichloropropene ug/L 17.620 88 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220009LABORATORY CONTROL SAMPLE: LCSSpike Dibromochloromethane ug/L 17.120 86 70-130 Dibromomethane ug/L 19.020 95 70-130 Ethylbenzene ug/L 18.220 91 70-130 Iodomethane ug/L 33.340 83 57-140 m&p-Xylene ug/L 37.040 92 70-130 Methylene Chloride ug/L 17.520 88 62-130 Naphthalene ug/L 17.220 86 70-135 o-Xylene ug/L 18.120 91 70-130 Styrene ug/L 18.420 92 70-130 Tetrachloroethene ug/L 17.920 90 70-130 Toluene ug/L 18.020 90 70-130 trans-1,2-Dichloroethene ug/L 17.120 86 70-130 trans-1,3-Dichloropropene ug/L 17.520 88 70-130 trans-1,4-Dichloro-2-butene ug/L 18.020 90 57-149 Trichloroethene ug/L 18.920 94 70-130 Trichlorofluoromethane ug/L 22.320 111 57-130 Vinyl acetate ug/L 37.140 93 70-141 Vinyl chloride ug/L 16.920 85 66-140 Xylene (Total)ug/L 55.160 92 70-130 1,2-Dichloroethane-d4 (S)%95 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220010MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220011 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 118 70-146117 020ND23.5 23.4 1,1,1-Trichloroethane ug/L 20 126 70-150127 120ND25.2 25.5 1,1,2,2-Tetrachloroethane ug/L 20 116 66-144114 220ND23.2 22.7 1,1,2-Trichloroethane ug/L 20 124 70-142121 220ND24.8 24.2 1,1-Dichloroethane ug/L 20 114 68-150115 120ND22.9 23.0 1,1-Dichloroethene ug/L 20 134 64-162136 120ND26.9 27.2 1,2,3-Trichloropropane ug/L 20 111 66-144109 220ND22.2 21.7 1,2-Dichlorobenzene ug/L 20 114 70-142117 220ND22.8 23.4 1,2-Dichloroethane ug/L 20 115 68-145116 120ND23.0 23.2 1,2-Dichloropropane ug/L 20 113 70-144112 020ND22.5 22.4 1,4-Dichlorobenzene ug/L 20 116 70-140118 220ND23.1 23.7 2-Butanone (MEK)ug/L 40 96 57-15692 540ND38.6 36.8 2-Hexanone ug/L 40 101 62-15396 540ND40.4 38.4 4-Methyl-2-pentanone (MIBK) ug/L 40 105 65-144100 540ND42.1 40.1 Acetone ug/L 40 96 49-16292 540ND38.5 36.8 Acrylonitrile ug/L 100 104 59-155101 3100ND104 101 Benzene ug/L 20 118 68-144117 120ND23.7 23.4 Bromochloromethane ug/L 20 122 70-148123 120ND24.5 24.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4220010MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220011 MSD Result MSD % Rec RPD MSDMS Spike Conc. Bromodichloromethane ug/L 20 118 70-141115 220ND23.5 23.0 Bromoform ug/L 20 115 59-144114 120ND23.0 22.7 Bromomethane ug/L 20 126 23-190136 820ND25.2 27.3 Carbon disulfide ug/L v32012864-160131 220ND25.6 26.2 Carbon tetrachloride ug/L 20 126 70-147126 020ND25.2 25.3 Chlorobenzene ug/L 20 119 70-143120 020ND23.9 24.0 Chloroethane ug/L IK2013355-190136 220ND26.7 27.1 Chloroform ug/L 20 118 67-148124 520ND23.5 24.8 Chloromethane ug/L 20 106 38-180109 320ND21.1 21.8 cis-1,2-Dichloroethene ug/L 20 113 67-151114 120ND22.6 22.7 cis-1,3-Dichloropropene ug/L 20 114 70-142112 220ND22.8 22.3 Dibromochloromethane ug/L 20 110 68-140109 120ND22.0 21.8 Dibromomethane ug/L 20 124 70-142122 220ND24.9 24.5 Ethylbenzene ug/L 20 117 70-145117 020ND23.4 23.4 Iodomethane ug/L v34011237-160116 340ND44.9 46.4 m&p-Xylene ug/L 40 118 70-148118 040ND47.1 47.1 Methylene Chloride ug/L 20 110 54-149111 120ND22.0 22.1 Naphthalene ug/L 20 104 62-154104 020ND20.8 20.7 o-Xylene ug/L 20 116 70-145116 020ND23.2 23.2 Styrene ug/L 20 115 70-147115 020ND22.9 23.0 Tetrachloroethene ug/L 20 121 70-145120 120ND24.1 24.0 Toluene ug/L 20 121 65-146120 120ND24.3 24.0 trans-1,2-Dichloroethene ug/L 20 118 69-155119 120ND23.6 23.8 trans-1,3-Dichloropropene ug/L 20 114 70-142112 220ND22.9 22.4 trans-1,4-Dichloro-2-butene ug/L 20 111 39-149105 520ND22.2 21.1 Trichloroethene ug/L 20 128 70-152128 020ND25.6 25.6 Trichlorofluoromethane ug/L 20 157 60-158158 120ND31.3 31.6 Vinyl acetate ug/L 40 117 56-157114 240ND46.8 45.7 Vinyl chloride ug/L 20 116 51-178118 220ND23.1 23.5 Xylene (Total)ug/L 60 117 70-146117 060ND70.3 70.3 1,2-Dichloroethane-d4 (S)%96 70-13095 4-Bromofluorobenzene (S)%100 70-13097 Toluene-d8 (S)%98 70-13097 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815205 EPA 8260D Mod. EPA 8260D Mod. 8260D MSV SIM Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699898001, 92699898002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220270 Associated Lab Samples:92699898001, 92699898002 Matrix: Water Analyzed 1,4-Dioxane (p-Dioxane)ug/L ND 2.0 11/22/23 17:58 1,2-Dichloroethane-d4 (S)%88 67-130 11/22/23 17:58 Toluene-d8 (S)%90 70-130 11/22/23 17:58 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220271LABORATORY CONTROL SAMPLE: LCSSpike 1,4-Dioxane (p-Dioxane)ug/L 17.120 86 70-130 1,2-Dichloroethane-d4 (S)%87 67-130 Toluene-d8 (S)%92 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220272MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220273 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 85 55-13790 620ND16.9 17.9 1,2-Dichloroethane-d4 (S)%89 67-13090 Toluene-d8 (S)%92 70-13092 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220274MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220275 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 96 55-13795 020ND19.1 19.1 1,2-Dichloroethane-d4 (S)%88 67-13089 Toluene-d8 (S)%91 70-13092 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 816023 SM 2320B-2011 SM 2320B-2011 2320B Alkalinity Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699898001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4223590 Associated Lab Samples:92699898001 Matrix: Water Analyzed Alkalinity, Total as CaCO3 mg/L ND 5.0 11/29/23 12:59 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4223591LABORATORY CONTROL SAMPLE: LCSSpike Alkalinity, Total as CaCO3 mg/L 50.950 102 80-120 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4223592LABORATORY CONTROL SAMPLE: LCSSpike Alkalinity, Total as CaCO3 mg/L 50.550 101 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4223593MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4223594 MSD Result MSD % Rec RPD MSDMS Spike Conc. Alkalinity, Total as CaCO3 mg/L 50 101 80-120106 35030.3 80.8 83.2 Parameter Units MS Result % Rec Limits Qual% RecConc. 4223595MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4223596 MSD Result MSD % Rec RPD MSDMS Spike Conc. Alkalinity, Total as CaCO3 mg/L 50 101 80-120102 05044.0 94.7 94.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815397 SM 2540C-2015 SM 2540C-2015 2540C Total Dissolved Solids Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699898001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220963 Associated Lab Samples:92699898001 Matrix: Water Analyzed Total Dissolved Solids mg/L ND 25.0 11/27/23 10:23 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220964LABORATORY CONTROL SAMPLE: LCSSpike Total Dissolved Solids mg/L 256250 102 90-110 Parameter Units Dup Result QualifiersRPDResult 92699633003 4220965SAMPLE DUPLICATE: Total Dissolved Solids mg/L 1310 51380 Parameter Units Dup Result QualifiersRPDResult 92699658007 4220966SAMPLE DUPLICATE: Total Dissolved Solids mg/L 32.0 935.0 Parameter Units Dup Result QualifiersRPDResult 92699898001 4226112SAMPLE DUPLICATE: Total Dissolved Solids mg/L 73.0 H1768.0 Parameter Units Dup Result QualifiersRPDResult 92699907002 4226113SAMPLE DUPLICATE: Total Dissolved Solids mg/L 86.0 H11078.0 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815250 SM 4500-S2D-2011 SM 4500-S2D-2011 4500S2D Sulfide Water Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699898001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220621 Associated Lab Samples:92699898001 Matrix: Water Analyzed Sulfide mg/L ND 0.10 11/23/23 04:03 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220622LABORATORY CONTROL SAMPLE: LCSSpike Sulfide mg/L 0.520.5 105 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220623MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699313003 4220624 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 103 80-120106 40.5ND 0.51 0.53 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220637MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220638 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 102 80-120106 30.5ND 0.51 0.53 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 814961 EPA 300.0 Rev 2.1 1993 EPA 300.0 Rev 2.1 1993 300.0 IC Anions Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699898001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4219102 Associated Lab Samples:92699898001 Matrix: Water Analyzed Chloride mg/L ND 1.0 11/22/23 01:40 Sulfate mg/L ND 1.0 11/22/23 01:40 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4219103LABORATORY CONTROL SAMPLE: LCSSpike Chloride mg/L 53.050 106 90-110 Sulfate mg/L 52.550 105 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219104MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4219105 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chloride mg/L 50 99 90-110102 3508.0 57.7 59.2 Sulfate mg/L 50 98 90-110101 350ND49.0 50.6 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219106MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4219107 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chloride mg/L 50 99 90-110102 3502.3 51.9 53.4 Sulfate mg/L 50 98 90-110101 3502.2 51.2 52.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815297 SM 3500-Cr B-2011 SM 3500-Cr B-2011 Chromium, Hexavalent by SM3500-Cr B-2011 Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699898001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220712 Associated Lab Samples:92699898001 Matrix: Water Analyzed Chromium, Hexavalent mg/L ND 0.010 11/25/23 15:02 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220713LABORATORY CONTROL SAMPLE: LCSSpike Chromium, Hexavalent mg/L 0.260.25 104 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220714MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220715 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chromium, Hexavalent mg/L M10.25 75 90-11079 50.250.010 0.20 0.21 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220716MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220717 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chromium, Hexavalent mg/L 0.25 99 90-11096 30.250.011 0.26 0.25 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 27 #=QL# QUALIFIERS Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Analysis conducted outside the EPA method holding time.H1 The recalculated concentration of the calibration standard(s) did not meet method acceptance criteria; this result should be considered an estimated value.IK Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 The continuing calibration verification was below the method acceptance limit. The analyte was not detected in the associated samples and the sensitivity of the instrument was verified with a reporting limit check standard.v2 The continuing calibration verification was below the method acceptance limit. Any detection for the analyte in the associated samples may have low bias.v3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 27 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92699898 OCSWM FALL-NORTH (MW-04) Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92699898001 815073 8151836801-MW04 EPA 3010A EPA 6010D 92699898001 815270 8152936801-MW04 EPA 7470A EPA 7470A 92699898001 8151756801-MW04 EPA 8260D 92699898002 815175TRIP BLANK EPA 8260D 92699898001 8152056801-MW04 EPA 8260D Mod. 92699898002 815205TRIP BLANK EPA 8260D Mod. 92699898001 8160236801-MW04 SM 2320B-2011 92699898001 8153976801-MW04 SM 2540C-2015 92699898001 8152506801-MW04 SM 4500-S2D-2011 92699898001 8149616801-MW04 EPA 300.0 Rev 2.1 1993 92699898001 8152976801-MW04 SM 3500-Cr B-2011 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 07:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 27 Page 24 of 27 Page 25 of 27 Page 26 of 27 Page 27 of 27 #=CL# December 04, 2023 LIMS USE: FR - DEBORAH COAKLEY LIMS OBJECT ID: 92699907 92699907 Project: Pace Project No.: RE: Deborah Ann Coakley TRC Companies 1030 Wilmer Ave. Suite 100 Richmond, VA 23227 OCSWM FALL-SOUTH MW110D/MW110S Dear Deborah Coakley: Enclosed are the analytical results for sample(s) received by the laboratory on November 20, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Matthew Brainard matthew.brainard@pacelabs.com Project Manager 704-977-0942 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 32 #=CP# CERTIFICATIONS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 32 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92699907001 6801-MW110D EPA 6010D 1 PASI-ASBW SM 3500-Cr B-2011 1 PASI-AJMH1 92699907002 6801-MW110S EPA 6010D 17 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CJJK EPA 8260D Mod.3 PASI-CTEG SM 2320B-2011 1 PASI-ASMS SM 2540C-2015 1 PASI-AJAY EPA 300.0 Rev 2.1 1993 2 PASI-ACDC SM 3500-Cr B-2011 1 PASI-AJMH1 92699907003 TRIP BLANK EPA 8260D 51 PASI-CSAS EPA 8260D Mod.3 PASI-CTEG PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Sample: 6801-MW110D Lab ID: 92699907001 Collected: 11/20/23 12:20 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Arsenic 14.0 ug/L 12/03/23 12:58 7440-38-211/22/23 11:5510.0 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent ND mg/L 11/25/23 15:15 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Sample: 6801-MW110S Lab ID: 92699907002 Collected: 11/20/23 11:35 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 13:03 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 13:03 7440-38-211/22/23 11:5510.0 1 Barium ND ug/L 12/03/23 13:03 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 13:03 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 13:03 7440-43-911/22/23 11:551.0 1 Chromium ND ug/L 12/03/23 13:03 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 13:03 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 13:03 7440-50-811/22/23 11:555.0 1 Iron 139 ug/L 12/03/23 13:03 7439-89-611/22/23 11:5550.0 1 Lead ND ug/L 12/03/23 13:03 7439-92-111/22/23 11:555.0 1 Manganese ND ug/L 12/03/23 13:03 7439-96-511/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 13:03 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 13:03 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 13:03 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 13:03 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 13:03 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 13:03 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:34 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/30/23 18:34 67-64-125.0 1 Acrylonitrile ND ug/L 11/30/23 18:34 107-13-110.0 1 Benzene ND ug/L 11/30/23 18:34 71-43-21.0 1 Bromochloromethane ND ug/L 11/30/23 18:34 74-97-51.0 1 Bromodichloromethane ND ug/L 11/30/23 18:34 75-27-41.0 1 Bromoform ND ug/L 11/30/23 18:34 75-25-21.0 1 Bromomethane ND ug/L 11/30/23 18:34 74-83-9 v22.0 1 2-Butanone (MEK)ND ug/L 11/30/23 18:34 78-93-35.0 1 Carbon disulfide ND ug/L 11/30/23 18:34 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/30/23 18:34 56-23-51.0 1 Chlorobenzene ND ug/L 11/30/23 18:34 108-90-71.0 1 Chloroethane ND ug/L 11/30/23 18:34 75-00-31.0 1 Chloroform ND ug/L 11/30/23 18:34 67-66-31.0 1 Chloromethane ND ug/L 11/30/23 18:34 74-87-3 M11.0 1 Dibromochloromethane ND ug/L 11/30/23 18:34 124-48-11.0 1 Dibromomethane ND ug/L 11/30/23 18:34 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/30/23 18:34 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/30/23 18:34 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/30/23 18:34 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/30/23 18:34 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/30/23 18:34 107-06-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Sample: 6801-MW110S Lab ID: 92699907002 Collected: 11/20/23 11:35 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill 1,1-Dichloroethene ND ug/L 11/30/23 18:34 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/30/23 18:34 156-59-21.0 1 trans-1,2-Dichloroethene ND ug/L 11/30/23 18:34 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/30/23 18:34 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/30/23 18:34 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/30/23 18:34 10061-02-61.0 1 Ethylbenzene ND ug/L 11/30/23 18:34 100-41-41.0 1 2-Hexanone ND ug/L 11/30/23 18:34 591-78-65.0 1 Iodomethane ND ug/L 11/30/23 18:34 74-88-4 v220.0 1 Methylene Chloride ND ug/L 11/30/23 18:34 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/30/23 18:34 108-10-15.0 1 Styrene ND ug/L 11/30/23 18:34 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/30/23 18:34 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/30/23 18:34 79-34-51.0 1 Tetrachloroethene ND ug/L 11/30/23 18:34 127-18-41.0 1 Tetrahydrofuran ND ug/L 11/30/23 18:34 109-99-910.0 1 Toluene ND ug/L 11/30/23 18:34 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/30/23 18:34 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/30/23 18:34 79-00-51.0 1 Trichloroethene ND ug/L 11/30/23 18:34 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/30/23 18:34 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/30/23 18:34 96-18-41.0 1 Vinyl acetate ND ug/L 11/30/23 18:34 108-05-42.0 1 Vinyl chloride ND ug/L 11/30/23 18:34 75-01-4 M11.0 1 Xylene (Total)ND ug/L 11/30/23 18:34 1330-20-71.0 1 m&p-Xylene ND ug/L 11/30/23 18:34 179601-23-12.0 1 o-Xylene ND ug/L 11/30/23 18:34 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)100 %11/30/23 18:34 460-00-470-130 1 1,2-Dichloroethane-d4 (S)96 %11/30/23 18:34 17060-07-070-130 1 Toluene-d8 (S)105 %11/30/23 18:34 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)ND ug/L 11/22/23 23:19 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)89 %11/22/23 23:19 17060-07-067-130 1 Toluene-d8 (S)92 %11/22/23 23:19 2037-26-570-130 1 Analytical Method: SM 2320B-2011 Pace Analytical Services - Asheville 2320B Alkalinity Alkalinity, Total as CaCO3 44.0 mg/L 11/29/23 13:505.0 1 Analytical Method: SM 2540C-2015 Pace Analytical Services - Asheville 2540C Total Dissolved Solids Total Dissolved Solids 78.0 mg/L 11/27/23 10:25 H125.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Sample: 6801-MW110S Lab ID: 92699907002 Collected: 11/20/23 11:35 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services - Asheville 300.0 IC Anions 28 Days Chloride 2.3 mg/L 11/22/23 03:32 16887-00-61.0 1 Sulfate 2.2 mg/L 11/22/23 03:32 14808-79-81.0 1 Analytical Method: SM 3500-Cr B-2011 Pace Analytical Services - Asheville Chromium, Hexavalent, 28 Day Chromium, Hexavalent 0.011 mg/L 11/25/23 15:15 18540-29-90.010 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Sample: TRIP BLANK Lab ID: 92699907003 Collected: 11/20/23 00:00 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/22/23 15:55 67-64-1 v225.0 1 Acrylonitrile ND ug/L 11/22/23 15:55 107-13-110.0 1 Benzene ND ug/L 11/22/23 15:55 71-43-21.0 1 Bromochloromethane ND ug/L 11/22/23 15:55 74-97-51.0 1 Bromodichloromethane ND ug/L 11/22/23 15:55 75-27-41.0 1 Bromoform ND ug/L 11/22/23 15:55 75-25-21.0 1 Bromomethane ND ug/L 11/22/23 15:55 74-83-92.0 1 2-Butanone (MEK)ND ug/L 11/22/23 15:55 78-93-35.0 1 Carbon disulfide ND ug/L 11/22/23 15:55 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/22/23 15:55 56-23-51.0 1 Chlorobenzene ND ug/L 11/22/23 15:55 108-90-71.0 1 Chloroethane ND ug/L 11/22/23 15:55 75-00-3 IK1.0 1 Chloroform ND ug/L 11/22/23 15:55 67-66-31.0 1 Chloromethane ND ug/L 11/22/23 15:55 74-87-31.0 1 Dibromochloromethane ND ug/L 11/22/23 15:55 124-48-11.0 1 Dibromomethane ND ug/L 11/22/23 15:55 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/22/23 15:55 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/22/23 15:55 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/22/23 15:55 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/22/23 15:55 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/22/23 15:55 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/22/23 15:55 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/22/23 15:55 156-59-21.0 1 trans-1,2-Dichloroethene ND ug/L 11/22/23 15:55 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/22/23 15:55 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/22/23 15:55 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/22/23 15:55 10061-02-61.0 1 Ethylbenzene ND ug/L 11/22/23 15:55 100-41-41.0 1 2-Hexanone ND ug/L 11/22/23 15:55 591-78-65.0 1 Iodomethane ND ug/L 11/22/23 15:55 74-88-420.0 1 Methylene Chloride ND ug/L 11/22/23 15:55 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/22/23 15:55 108-10-15.0 1 Styrene ND ug/L 11/22/23 15:55 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/22/23 15:55 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/22/23 15:55 79-34-51.0 1 Tetrachloroethene ND ug/L 11/22/23 15:55 127-18-41.0 1 Tetrahydrofuran ND ug/L 11/22/23 15:55 109-99-910.0 1 Toluene ND ug/L 11/22/23 15:55 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/22/23 15:55 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/22/23 15:55 79-00-51.0 1 Trichloroethene ND ug/L 11/22/23 15:55 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/22/23 15:55 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/22/23 15:55 96-18-41.0 1 Vinyl acetate ND ug/L 11/22/23 15:55 108-05-42.0 1 Vinyl chloride ND ug/L 11/22/23 15:55 75-01-41.0 1 Xylene (Total)ND ug/L 11/22/23 15:55 1330-20-71.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Sample: TRIP BLANK Lab ID: 92699907003 Collected: 11/20/23 00:00 Received: 11/20/23 14:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill m&p-Xylene ND ug/L 11/22/23 15:55 179601-23-12.0 1 o-Xylene ND ug/L 11/22/23 15:55 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)96 %11/22/23 15:55 460-00-470-130 1 1,2-Dichloroethane-d4 (S)89 %11/22/23 15:55 17060-07-070-130 1 Toluene-d8 (S)97 %11/22/23 15:55 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)ND ug/L 11/22/23 22:15 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)91 %11/22/23 22:15 17060-07-067-130 1 Toluene-d8 (S)92 %11/22/23 22:15 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815335 EPA 7470A EPA 7470A 7470 Mercury Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699907002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220816 Associated Lab Samples:92699907002 Matrix: Water Analyzed Mercury ug/L ND 0.20 11/26/23 16:11 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220817LABORATORY CONTROL SAMPLE: LCSSpike Mercury ug/L 2.32.5 93 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220818MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220819 MSD Result MSD % Rec RPD MSDMS Spike Conc. Mercury ug/L 2.5 96 75-12593 32.5ND 2.4 2.3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815073 EPA 3010A EPA 6010D 6010 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699907001, 92699907002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4219471 Associated Lab Samples:92699907001, 92699907002 Matrix: Water Analyzed Antimony ug/L ND 5.0 12/03/23 11:26 Arsenic ug/L ND 10.0 12/03/23 11:26 Barium ug/L ND 5.0 12/03/23 11:26 Beryllium ug/L ND 1.0 12/03/23 11:26 Cadmium ug/L ND 1.0 12/03/23 11:26 Chromium ug/L ND 5.0 12/03/23 11:26 Cobalt ug/L ND 5.0 12/03/23 11:26 Copper ug/L ND 5.0 12/03/23 11:26 Iron ug/L ND 50.0 12/03/23 11:26 Lead ug/L ND 5.0 12/03/23 11:26 Manganese ug/L ND 5.0 12/03/23 11:26 Nickel ug/L ND 5.0 12/03/23 11:26 Selenium ug/L ND 10.0 12/03/23 11:26 Silver ug/L ND 5.0 12/03/23 11:26 Thallium ug/L ND 10.0 12/03/23 11:26 Vanadium ug/L ND 5.0 12/03/23 11:26 Zinc ug/L ND 10.0 12/03/23 11:26 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4219472LABORATORY CONTROL SAMPLE: LCSSpike Antimony ug/L 509500 102 80-120 Arsenic ug/L 505500 101 80-120 Barium ug/L 521500 104 80-120 Beryllium ug/L 506500 101 80-120 Cadmium ug/L 510500 102 80-120 Chromium ug/L 510500 102 80-120 Cobalt ug/L 510500 102 80-120 Copper ug/L 512500 102 80-120 Iron ug/L 51905000 104 80-120 Lead ug/L 509500 102 80-120 Manganese ug/L 517500 103 80-120 Nickel ug/L 507500 101 80-120 Selenium ug/L 494500 99 80-120 Silver ug/L 255250 102 80-120 Thallium ug/L 515500 103 80-120 Vanadium ug/L 509500 102 80-120 Zinc ug/L 506500 101 80-120 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4219473MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4219474 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 102 75-125103 1500ND512 515 Arsenic ug/L 500 103 75-125103 0500ND515 516 Barium ug/L 500 102 75-125105 350080.1 589 606 Beryllium ug/L 500 103 75-125104 1500ND516 520 Cadmium ug/L 500 102 75-125102 1500ND508 512 Chromium ug/L 500 103 75-125103 1500ND513 517 Cobalt ug/L 500 102 75-125103 1500ND508 513 Copper ug/L 500 102 75-125103 1500ND510 514 Iron ug/L 5000 102 75-125105 350001065230 5370 Lead ug/L 500 101 75-125102 1500ND503 509 Manganese ug/L 500 102 75-125105 3500ND514 529 Nickel ug/L 500 101 75-125102 1500ND505 510 Selenium ug/L 500 104 75-125104 1500ND518 522 Silver ug/L 250 103 75-125103 0250ND257 258 Thallium ug/L 500 101 75-125103 1500ND509 515 Vanadium ug/L 500 101 75-125102 1500ND508 512 Zinc ug/L 500 101 75-125102 1500ND515 521 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219475MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4219476 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 105 75-125104 1500ND525 522 Arsenic ug/L 500 105 75-125105 0500ND526 525 Barium ug/L 500 107 75-125107 0500ND539 541 Beryllium ug/L 500 106 75-125105 0500ND529 527 Cadmium ug/L 500 104 75-125104 0500ND519 518 Chromium ug/L 500 105 75-125105 0500ND528 526 Cobalt ug/L 500 104 75-125104 0500ND520 519 Copper ug/L 500 105 75-125105 0500ND524 524 Iron ug/L 5000 108 75-125111 350001395530 5670 Lead ug/L 500 103 75-125103 0500ND515 513 Manganese ug/L 500 107 75-125108 1500ND540 543 Nickel ug/L 500 103 75-125103 0500ND514 514 Selenium ug/L 500 107 75-125106 1500ND533 529 Silver ug/L 250 106 75-125105 1250ND264 262 Thallium ug/L 500 105 75-125104 1500ND526 521 Vanadium ug/L 500 104 75-125104 0500ND520 519 Zinc ug/L 500 103 75-125103 0500ND520 520 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815175 EPA 8260D EPA 8260D 8260D MSV Low Level Landfill Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699907003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220008 Associated Lab Samples:92699907003 Matrix: Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 11/22/23 15:01 1,1,1-Trichloroethane ug/L ND 1.0 11/22/23 15:01 1,1,2,2-Tetrachloroethane ug/L ND 1.0 11/22/23 15:01 1,1,2-Trichloroethane ug/L ND 1.0 11/22/23 15:01 1,1-Dichloroethane ug/L ND 1.0 11/22/23 15:01 1,1-Dichloroethene ug/L ND 1.0 11/22/23 15:01 1,2,3-Trichloropropane ug/L ND 1.0 11/22/23 15:01 1,2-Dichlorobenzene ug/L ND 1.0 11/22/23 15:01 1,2-Dichloroethane ug/L ND 1.0 11/22/23 15:01 1,2-Dichloropropane ug/L ND 1.0 11/22/23 15:01 1,4-Dichlorobenzene ug/L ND 1.0 11/22/23 15:01 2-Butanone (MEK)ug/L ND 5.0 11/22/23 15:01 2-Hexanone ug/L ND 5.0 11/22/23 15:01 4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 11/22/23 15:01 Acetone ug/L ND 25.0 v211/22/23 15:01 Acrylonitrile ug/L ND 10.0 11/22/23 15:01 Benzene ug/L ND 1.0 11/22/23 15:01 Bromochloromethane ug/L ND 1.0 11/22/23 15:01 Bromodichloromethane ug/L ND 1.0 11/22/23 15:01 Bromoform ug/L ND 1.0 11/22/23 15:01 Bromomethane ug/L ND 2.0 11/22/23 15:01 Carbon disulfide ug/L ND 2.0 11/22/23 15:01 Carbon tetrachloride ug/L ND 1.0 11/22/23 15:01 Chlorobenzene ug/L ND 1.0 11/22/23 15:01 Chloroethane ug/L ND 1.0 IK11/22/23 15:01 Chloroform ug/L ND 1.0 11/22/23 15:01 Chloromethane ug/L ND 1.0 11/22/23 15:01 cis-1,2-Dichloroethene ug/L ND 1.0 11/22/23 15:01 cis-1,3-Dichloropropene ug/L ND 1.0 11/22/23 15:01 Dibromochloromethane ug/L ND 1.0 11/22/23 15:01 Dibromomethane ug/L ND 1.0 11/22/23 15:01 Ethylbenzene ug/L ND 1.0 11/22/23 15:01 Iodomethane ug/L ND 20.0 11/22/23 15:01 m&p-Xylene ug/L ND 2.0 11/22/23 15:01 Methylene Chloride ug/L ND 5.0 11/22/23 15:01 o-Xylene ug/L ND 1.0 11/22/23 15:01 Styrene ug/L ND 1.0 11/22/23 15:01 Tetrachloroethene ug/L ND 1.0 11/22/23 15:01 Tetrahydrofuran ug/L ND 10.0 11/22/23 15:01 Toluene ug/L ND 1.0 11/22/23 15:01 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220008 Associated Lab Samples:92699907003 Matrix: Water Analyzed trans-1,2-Dichloroethene ug/L ND 1.0 11/22/23 15:01 trans-1,3-Dichloropropene ug/L ND 1.0 11/22/23 15:01 trans-1,4-Dichloro-2-butene ug/L ND 1.0 11/22/23 15:01 Trichloroethene ug/L ND 1.0 11/22/23 15:01 Trichlorofluoromethane ug/L ND 1.0 11/22/23 15:01 Vinyl acetate ug/L ND 2.0 11/22/23 15:01 Vinyl chloride ug/L ND 1.0 11/22/23 15:01 Xylene (Total)ug/L ND 1.0 11/22/23 15:01 1,2-Dichloroethane-d4 (S)%88 70-130 11/22/23 15:01 4-Bromofluorobenzene (S)%96 70-130 11/22/23 15:01 Toluene-d8 (S)%96 70-130 11/22/23 15:01 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220009LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 18.120 90 70-130 1,1,1-Trichloroethane ug/L 18.220 91 70-130 1,1,2,2-Tetrachloroethane ug/L 19.120 96 70-130 1,1,2-Trichloroethane ug/L 19.320 96 70-130 1,1-Dichloroethane ug/L 17.020 85 70-130 1,1-Dichloroethene ug/L 19.620 98 69-131 1,2,3-Trichloropropane ug/L 18.220 91 70-130 1,2-Dichlorobenzene ug/L 18.920 94 70-130 1,2-Dichloroethane ug/L 17.820 89 70-130 1,2-Dichloropropane ug/L 17.520 88 70-130 1,4-Dichlorobenzene ug/L 18.820 94 70-130 2-Butanone (MEK)ug/L 30.340 76 67-133 2-Hexanone ug/L 34.440 86 70-133 4-Methyl-2-pentanone (MIBK)ug/L 34.640 86 70-130 Acetone ug/L 30.5 v34076 67-130 Acrylonitrile ug/L 83.9100 84 70-130 Benzene ug/L 17.720 89 70-130 Bromochloromethane ug/L 18.420 92 70-130 Bromodichloromethane ug/L 17.820 89 70-130 Bromoform ug/L 17.920 89 70-133 Bromomethane ug/L 19.420 97 41-148 Carbon disulfide ug/L 18.520 92 70-131 Carbon tetrachloride ug/L 18.020 90 70-130 Chlorobenzene ug/L 18.920 94 70-130 Chloroethane ug/L 19.8 IK2099 41-157 Chloroform ug/L 18.120 90 70-130 Chloromethane ug/L 16.520 83 59-141 cis-1,2-Dichloroethene ug/L 16.920 85 70-130 cis-1,3-Dichloropropene ug/L 17.620 88 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220009LABORATORY CONTROL SAMPLE: LCSSpike Dibromochloromethane ug/L 17.120 86 70-130 Dibromomethane ug/L 19.020 95 70-130 Ethylbenzene ug/L 18.220 91 70-130 Iodomethane ug/L 33.340 83 57-140 m&p-Xylene ug/L 37.040 92 70-130 Methylene Chloride ug/L 17.520 88 62-130 o-Xylene ug/L 18.120 91 70-130 Styrene ug/L 18.420 92 70-130 Tetrachloroethene ug/L 17.920 90 70-130 Tetrahydrofuran ug/L 164200 82 70-131 Toluene ug/L 18.020 90 70-130 trans-1,2-Dichloroethene ug/L 17.120 86 70-130 trans-1,3-Dichloropropene ug/L 17.520 88 70-130 trans-1,4-Dichloro-2-butene ug/L 18.020 90 57-149 Trichloroethene ug/L 18.920 94 70-130 Trichlorofluoromethane ug/L 22.320 111 57-130 Vinyl acetate ug/L 37.140 93 70-141 Vinyl chloride ug/L 16.920 85 66-140 Xylene (Total)ug/L 55.160 92 70-130 1,2-Dichloroethane-d4 (S)%95 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220010MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220011 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 118 70-146117 020ND23.5 23.4 1,1,1-Trichloroethane ug/L 20 126 70-150127 120ND25.2 25.5 1,1,2,2-Tetrachloroethane ug/L 20 116 66-144114 220ND23.2 22.7 1,1,2-Trichloroethane ug/L 20 124 70-142121 220ND24.8 24.2 1,1-Dichloroethane ug/L 20 114 68-150115 120ND22.9 23.0 1,1-Dichloroethene ug/L 20 134 64-162136 120ND26.9 27.2 1,2,3-Trichloropropane ug/L 20 111 66-144109 220ND22.2 21.7 1,2-Dichlorobenzene ug/L 20 114 70-142117 220ND22.8 23.4 1,2-Dichloroethane ug/L 20 115 68-145116 120ND23.0 23.2 1,2-Dichloropropane ug/L 20 113 70-144112 020ND22.5 22.4 1,4-Dichlorobenzene ug/L 20 116 70-140118 220ND23.1 23.7 2-Butanone (MEK)ug/L 40 96 57-15692 540ND38.6 36.8 2-Hexanone ug/L 40 101 62-15396 540ND40.4 38.4 4-Methyl-2-pentanone (MIBK) ug/L 40 105 65-144100 540ND42.1 40.1 Acetone ug/L 40 96 49-16292 540ND38.5 36.8 Acrylonitrile ug/L 100 104 59-155101 3100ND104 101 Benzene ug/L 20 118 68-144117 120ND23.7 23.4 Bromochloromethane ug/L 20 122 70-148123 120ND24.5 24.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4220010MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220011 MSD Result MSD % Rec RPD MSDMS Spike Conc. Bromodichloromethane ug/L 20 118 70-141115 220ND23.5 23.0 Bromoform ug/L 20 115 59-144114 120ND23.0 22.7 Bromomethane ug/L 20 126 23-190136 820ND25.2 27.3 Carbon disulfide ug/L v32012864-160131 220ND25.6 26.2 Carbon tetrachloride ug/L 20 126 70-147126 020ND25.2 25.3 Chlorobenzene ug/L 20 119 70-143120 020ND23.9 24.0 Chloroethane ug/L IK2013355-190136 220ND26.7 27.1 Chloroform ug/L 20 118 67-148124 520ND23.5 24.8 Chloromethane ug/L 20 106 38-180109 320ND21.1 21.8 cis-1,2-Dichloroethene ug/L 20 113 67-151114 120ND22.6 22.7 cis-1,3-Dichloropropene ug/L 20 114 70-142112 220ND22.8 22.3 Dibromochloromethane ug/L 20 110 68-140109 120ND22.0 21.8 Dibromomethane ug/L 20 124 70-142122 220ND24.9 24.5 Ethylbenzene ug/L 20 117 70-145117 020ND23.4 23.4 Iodomethane ug/L v34011237-160116 340ND44.9 46.4 m&p-Xylene ug/L 40 118 70-148118 040ND47.1 47.1 Methylene Chloride ug/L 20 110 54-149111 120ND22.0 22.1 o-Xylene ug/L 20 116 70-145116 020ND23.2 23.2 Styrene ug/L 20 115 70-147115 020ND22.9 23.0 Tetrachloroethene ug/L 20 121 70-145120 120ND24.1 24.0 Tetrahydrofuran ug/L 200 100 48-16097 3200ND201 194 Toluene ug/L 20 121 65-146120 120ND24.3 24.0 trans-1,2-Dichloroethene ug/L 20 118 69-155119 120ND23.6 23.8 trans-1,3-Dichloropropene ug/L 20 114 70-142112 220ND22.9 22.4 trans-1,4-Dichloro-2-butene ug/L 20 111 39-149105 520ND22.2 21.1 Trichloroethene ug/L 20 128 70-152128 020ND25.6 25.6 Trichlorofluoromethane ug/L 20 157 60-158158 120ND31.3 31.6 Vinyl acetate ug/L 40 117 56-157114 240ND46.8 45.7 Vinyl chloride ug/L 20 116 51-178118 220ND23.1 23.5 Xylene (Total)ug/L 60 117 70-146117 060ND70.3 70.3 1,2-Dichloroethane-d4 (S)%96 70-13095 4-Bromofluorobenzene (S)%100 70-13097 Toluene-d8 (S)%98 70-13097 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 816395 EPA 8260D EPA 8260D 8260D MSV Low Level Landfill Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699907002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225648 Associated Lab Samples:92699907002 Matrix: Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 11/30/23 12:05 1,1,1-Trichloroethane ug/L ND 1.0 11/30/23 12:05 1,1,2,2-Tetrachloroethane ug/L ND 1.0 11/30/23 12:05 1,1,2-Trichloroethane ug/L ND 1.0 11/30/23 12:05 1,1-Dichloroethane ug/L ND 1.0 11/30/23 12:05 1,1-Dichloroethene ug/L ND 1.0 11/30/23 12:05 1,2,3-Trichloropropane ug/L ND 1.0 11/30/23 12:05 1,2-Dichlorobenzene ug/L ND 1.0 11/30/23 12:05 1,2-Dichloroethane ug/L ND 1.0 11/30/23 12:05 1,2-Dichloropropane ug/L ND 1.0 11/30/23 12:05 1,4-Dichlorobenzene ug/L ND 1.0 11/30/23 12:05 2-Butanone (MEK)ug/L ND 5.0 11/30/23 12:05 2-Hexanone ug/L ND 5.0 11/30/23 12:05 4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 11/30/23 12:05 Acetone ug/L ND 25.0 11/30/23 12:05 Acrylonitrile ug/L ND 10.0 11/30/23 12:05 Benzene ug/L ND 1.0 11/30/23 12:05 Bromochloromethane ug/L ND 1.0 11/30/23 12:05 Bromodichloromethane ug/L ND 1.0 11/30/23 12:05 Bromoform ug/L ND 1.0 11/30/23 12:05 Bromomethane ug/L ND 2.0 v211/30/23 12:05 Carbon disulfide ug/L ND 2.0 11/30/23 12:05 Carbon tetrachloride ug/L ND 1.0 11/30/23 12:05 Chlorobenzene ug/L ND 1.0 11/30/23 12:05 Chloroethane ug/L ND 1.0 11/30/23 12:05 Chloroform ug/L ND 1.0 11/30/23 12:05 Chloromethane ug/L ND 1.0 11/30/23 12:05 cis-1,2-Dichloroethene ug/L ND 1.0 11/30/23 12:05 cis-1,3-Dichloropropene ug/L ND 1.0 11/30/23 12:05 Dibromochloromethane ug/L ND 1.0 11/30/23 12:05 Dibromomethane ug/L ND 1.0 11/30/23 12:05 Ethylbenzene ug/L ND 1.0 11/30/23 12:05 Iodomethane ug/L ND 20.0 v211/30/23 12:05 m&p-Xylene ug/L ND 2.0 11/30/23 12:05 Methylene Chloride ug/L ND 5.0 11/30/23 12:05 o-Xylene ug/L ND 1.0 11/30/23 12:05 Styrene ug/L ND 1.0 11/30/23 12:05 Tetrachloroethene ug/L ND 1.0 11/30/23 12:05 Tetrahydrofuran ug/L ND 10.0 11/30/23 12:05 Toluene ug/L ND 1.0 11/30/23 12:05 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225648 Associated Lab Samples:92699907002 Matrix: Water Analyzed trans-1,2-Dichloroethene ug/L ND 1.0 11/30/23 12:05 trans-1,3-Dichloropropene ug/L ND 1.0 11/30/23 12:05 trans-1,4-Dichloro-2-butene ug/L ND 1.0 11/30/23 12:05 Trichloroethene ug/L ND 1.0 11/30/23 12:05 Trichlorofluoromethane ug/L ND 1.0 11/30/23 12:05 Vinyl acetate ug/L ND 2.0 11/30/23 12:05 Vinyl chloride ug/L ND 1.0 11/30/23 12:05 Xylene (Total)ug/L ND 1.0 11/30/23 12:05 1,2-Dichloroethane-d4 (S)%93 70-130 11/30/23 12:05 4-Bromofluorobenzene (S)%102 70-130 11/30/23 12:05 Toluene-d8 (S)%105 70-130 11/30/23 12:05 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225649LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 20.420 102 70-130 1,1,1-Trichloroethane ug/L 20.420 102 70-130 1,1,2,2-Tetrachloroethane ug/L 19.820 99 70-130 1,1,2-Trichloroethane ug/L 19.820 99 70-130 1,1-Dichloroethane ug/L 18.620 93 70-130 1,1-Dichloroethene ug/L 19.620 98 69-131 1,2,3-Trichloropropane ug/L 19.420 97 70-130 1,2-Dichlorobenzene ug/L 20.720 103 70-130 1,2-Dichloroethane ug/L 19.020 95 70-130 1,2-Dichloropropane ug/L 19.520 97 70-130 1,4-Dichlorobenzene ug/L 20.320 102 70-130 2-Butanone (MEK)ug/L 39.540 99 67-133 2-Hexanone ug/L 44.240 110 70-133 4-Methyl-2-pentanone (MIBK)ug/L 42.340 106 70-130 Acetone ug/L 39.440 99 67-130 Acrylonitrile ug/L 93.7100 94 70-130 Benzene ug/L 20.020 100 70-130 Bromochloromethane ug/L 19.620 98 70-130 Bromodichloromethane ug/L 19.320 96 70-130 Bromoform ug/L 19.820 99 70-133 Bromomethane ug/L 16.5 v32082 41-148 Carbon disulfide ug/L 19.420 97 70-131 Carbon tetrachloride ug/L 20.620 103 70-130 Chlorobenzene ug/L 20.320 102 70-130 Chloroethane ug/L 19.720 98 41-157 Chloroform ug/L 19.020 95 70-130 Chloromethane ug/L 18.920 94 59-141 cis-1,2-Dichloroethene ug/L 18.720 93 70-130 cis-1,3-Dichloropropene ug/L 20.220 101 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225649LABORATORY CONTROL SAMPLE: LCSSpike Dibromochloromethane ug/L 19.820 99 70-130 Dibromomethane ug/L 20.020 100 70-130 Ethylbenzene ug/L 20.120 100 70-130 Iodomethane ug/L 34.9 v34087 57-140 m&p-Xylene ug/L 41.040 102 70-130 Methylene Chloride ug/L 17.320 87 62-130 o-Xylene ug/L 20.120 100 70-130 Styrene ug/L 20.720 103 70-130 Tetrachloroethene ug/L 19.620 98 70-130 Tetrahydrofuran ug/L 196200 98 70-131 Toluene ug/L 19.420 97 70-130 trans-1,2-Dichloroethene ug/L 19.520 97 70-130 trans-1,3-Dichloropropene ug/L 20.220 101 70-130 trans-1,4-Dichloro-2-butene ug/L 20.320 102 57-149 Trichloroethene ug/L 20.920 104 70-130 Trichlorofluoromethane ug/L 21.820 109 57-130 Vinyl acetate ug/L 35.240 88 70-141 Vinyl chloride ug/L 17.320 87 66-140 Xylene (Total)ug/L 61.160 102 70-130 1,2-Dichloroethane-d4 (S)%96 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4225650MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4225651 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 128 70-146127 020ND25.6 25.5 1,1,1-Trichloroethane ug/L 20 113 70-150114 120ND22.6 22.8 1,1,2,2-Tetrachloroethane ug/L 20 117 66-144115 220ND23.3 23.0 1,1,2-Trichloroethane ug/L 20 118 70-142121 320ND23.5 24.1 1,1-Dichloroethane ug/L 20 101 68-150100 120ND20.2 20.1 1,1-Dichloroethene ug/L 20 81 64-16284 320ND16.3 16.8 1,2,3-Trichloropropane ug/L 20 114 66-144108 520ND22.7 21.6 1,2-Dichlorobenzene ug/L 20 120 70-142122 120ND24.0 24.4 1,2-Dichloroethane ug/L 20 108 68-145106 220ND21.7 21.2 1,2-Dichloropropane ug/L 20 112 70-144112 020ND22.5 22.4 1,4-Dichlorobenzene ug/L 20 118 70-140119 120ND23.5 23.9 2-Butanone (MEK)ug/L 40 105 57-156104 140ND41.8 41.5 2-Hexanone ug/L 40 123 62-153118 440ND49.3 47.2 4-Methyl-2-pentanone (MIBK) ug/L 40 117 65-144115 240ND46.6 45.8 Acetone ug/L 40 90 49-16290 040ND36.2 36.1 Acrylonitrile ug/L 100 97 59-15594 3100ND96.7 94.1 Benzene ug/L 20 107 68-144109 220ND21.4 21.7 Bromochloromethane ug/L 20 109 70-148108 120ND21.8 21.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4225650MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4225651 MSD Result MSD % Rec RPD MSDMS Spike Conc. Bromodichloromethane ug/L 20 117 70-141121 320ND23.4 24.2 Bromoform ug/L 20 124 59-144121 220ND24.8 24.3 Bromomethane ug/L v3204723-19046 220ND9.5 9.3 Carbon disulfide ug/L 20 64 64-16065 220ND12.8 13.1 Carbon tetrachloride ug/L 20 117 70-147119 220ND23.4 23.7 Chlorobenzene ug/L 20 122 70-143122 020ND24.4 24.4 Chloroethane ug/L 20 58 55-19057 120ND11.5 11.4 Chloroform ug/L 20 110 67-148109 120ND22.0 21.8 Chloromethane ug/L M1201138-18011 220ND2.2 2.3 cis-1,2-Dichloroethene ug/L 20 104 67-151105 120ND20.9 21.0 cis-1,3-Dichloropropene ug/L 20 116 70-142120 320ND23.3 24.0 Dibromochloromethane ug/L 20 120 68-140121 120ND24.0 24.1 Dibromomethane ug/L 20 119 70-142120 120ND23.7 24.0 Ethylbenzene ug/L 20 121 70-145120 120ND24.2 24.0 Iodomethane ug/L 40 69 37-16072 440ND27.8 28.8 m&p-Xylene ug/L 40 122 70-148122 040ND48.8 49.0 Methylene Chloride ug/L 20 86 54-14989 320ND17.6 18.0 o-Xylene ug/L 20 122 70-145119 320ND24.5 23.7 Styrene ug/L 20 124 70-147124 020ND24.8 24.8 Tetrachloroethene ug/L 20 115 70-145115 020ND23.0 22.9 Tetrahydrofuran ug/L 200 95 48-16095 1200ND191 190 Toluene ug/L 20 115 65-146118 320ND23.0 23.7 trans-1,2-Dichloroethene ug/L 20 97 69-15599 220ND19.4 19.8 trans-1,3-Dichloropropene ug/L 20 122 70-142121 120ND24.5 24.1 trans-1,4-Dichloro-2-butene ug/L 20 111 39-149104 720ND22.3 20.8 Trichloroethene ug/L 20 121 70-152123 220ND24.1 24.5 Trichlorofluoromethane ug/L 20 76 60-15876 020ND15.2 15.3 Vinyl acetate ug/L 40 85 56-15783 340ND33.9 33.0 Vinyl chloride ug/L M1202251-17822 120ND4.3 4.4 Xylene (Total)ug/L 60 122 70-146121 160ND73.3 72.7 1,2-Dichloroethane-d4 (S)%99 70-13097 4-Bromofluorobenzene (S)%101 70-13099 Toluene-d8 (S)%98 70-13099 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815205 EPA 8260D Mod. EPA 8260D Mod. 8260D MSV SIM Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699907002, 92699907003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220270 Associated Lab Samples:92699907002, 92699907003 Matrix: Water Analyzed 1,4-Dioxane (p-Dioxane)ug/L ND 2.0 11/22/23 17:58 1,2-Dichloroethane-d4 (S)%88 67-130 11/22/23 17:58 Toluene-d8 (S)%90 70-130 11/22/23 17:58 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220271LABORATORY CONTROL SAMPLE: LCSSpike 1,4-Dioxane (p-Dioxane)ug/L 17.120 86 70-130 1,2-Dichloroethane-d4 (S)%87 67-130 Toluene-d8 (S)%92 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220272MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220273 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 85 55-13790 620ND16.9 17.9 1,2-Dichloroethane-d4 (S)%89 67-13090 Toluene-d8 (S)%92 70-13092 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220274MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220275 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 96 55-13795 020ND19.1 19.1 1,2-Dichloroethane-d4 (S)%88 67-13089 Toluene-d8 (S)%91 70-13092 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 816023 SM 2320B-2011 SM 2320B-2011 2320B Alkalinity Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699907002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4223590 Associated Lab Samples:92699907002 Matrix: Water Analyzed Alkalinity, Total as CaCO3 mg/L ND 5.0 11/29/23 12:59 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4223591LABORATORY CONTROL SAMPLE: LCSSpike Alkalinity, Total as CaCO3 mg/L 50.950 102 80-120 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4223592LABORATORY CONTROL SAMPLE: LCSSpike Alkalinity, Total as CaCO3 mg/L 50.550 101 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4223593MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4223594 MSD Result MSD % Rec RPD MSDMS Spike Conc. Alkalinity, Total as CaCO3 mg/L 50 101 80-120106 35030.3 80.8 83.2 Parameter Units MS Result % Rec Limits Qual% RecConc. 4223595MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4223596 MSD Result MSD % Rec RPD MSDMS Spike Conc. Alkalinity, Total as CaCO3 mg/L 50 101 80-120102 05044.0 94.7 94.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815397 SM 2540C-2015 SM 2540C-2015 2540C Total Dissolved Solids Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699907002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220963 Associated Lab Samples:92699907002 Matrix: Water Analyzed Total Dissolved Solids mg/L ND 25.0 11/27/23 10:23 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220964LABORATORY CONTROL SAMPLE: LCSSpike Total Dissolved Solids mg/L 256250 102 90-110 Parameter Units Dup Result QualifiersRPDResult 92699633003 4220965SAMPLE DUPLICATE: Total Dissolved Solids mg/L 1310 51380 Parameter Units Dup Result QualifiersRPDResult 92699658007 4220966SAMPLE DUPLICATE: Total Dissolved Solids mg/L 32.0 935.0 Parameter Units Dup Result QualifiersRPDResult 92699898001 4226112SAMPLE DUPLICATE: Total Dissolved Solids mg/L 73.0 H1768.0 Parameter Units Dup Result QualifiersRPDResult 92699907002 4226113SAMPLE DUPLICATE: Total Dissolved Solids mg/L 86.0 H11078.0 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 814961 EPA 300.0 Rev 2.1 1993 EPA 300.0 Rev 2.1 1993 300.0 IC Anions Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699907002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4219102 Associated Lab Samples:92699907002 Matrix: Water Analyzed Chloride mg/L ND 1.0 11/22/23 01:40 Sulfate mg/L ND 1.0 11/22/23 01:40 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4219103LABORATORY CONTROL SAMPLE: LCSSpike Chloride mg/L 53.050 106 90-110 Sulfate mg/L 52.550 105 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219104MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4219105 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chloride mg/L 50 99 90-110102 3508.0 57.7 59.2 Sulfate mg/L 50 98 90-110101 350ND49.0 50.6 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219106MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4219107 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chloride mg/L 50 99 90-110102 3502.3 51.9 53.4 Sulfate mg/L 50 98 90-110101 3502.2 51.2 52.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815297 SM 3500-Cr B-2011 SM 3500-Cr B-2011 Chromium, Hexavalent by SM3500-Cr B-2011 Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699907001, 92699907002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220712 Associated Lab Samples:92699907001, 92699907002 Matrix: Water Analyzed Chromium, Hexavalent mg/L ND 0.010 11/25/23 15:02 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220713LABORATORY CONTROL SAMPLE: LCSSpike Chromium, Hexavalent mg/L 0.260.25 104 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220714MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220715 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chromium, Hexavalent mg/L M10.25 75 90-11079 50.250.010 0.20 0.21 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220716MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220717 MSD Result MSD % Rec RPD MSDMS Spike Conc. Chromium, Hexavalent mg/L 0.25 99 90-11096 30.250.011 0.26 0.25 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 32 #=QL# QUALIFIERS Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Analysis conducted outside the EPA method holding time.H1 The recalculated concentration of the calibration standard(s) did not meet method acceptance criteria; this result should be considered an estimated value.IK Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 The continuing calibration verification was below the method acceptance limit. The analyte was not detected in the associated samples and the sensitivity of the instrument was verified with a reporting limit check standard.v2 The continuing calibration verification was below the method acceptance limit. Any detection for the analyte in the associated samples may have low bias.v3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 32 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92699907 OCSWM FALL-SOUTH MW110D/MW110S Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92699907001 815073 8151836801-MW110D EPA 3010A EPA 6010D 92699907002 815073 8151836801-MW110S EPA 3010A EPA 6010D 92699907002 815335 8153536801-MW110S EPA 7470A EPA 7470A 92699907002 8163956801-MW110S EPA 8260D 92699907003 815175TRIP BLANK EPA 8260D 92699907002 8152056801-MW110S EPA 8260D Mod. 92699907003 815205TRIP BLANK EPA 8260D Mod. 92699907002 8160236801-MW110S SM 2320B-2011 92699907002 8153976801-MW110S SM 2540C-2015 92699907002 8149616801-MW110S EPA 300.0 Rev 2.1 1993 92699907001 8152976801-MW110D SM 3500-Cr B-2011 92699907002 8152976801-MW110S SM 3500-Cr B-2011 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 32 Page 28 of 32 Page 29 of 32 Page 30 of 32 Page 31 of 32 Page 32 of 32 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 7: Surface Water #=CL# December 04, 2023 LIMS USE: FR - DEBORAH COAKLEY LIMS OBJECT ID: 92699914 92699914 Project: Pace Project No.: RE: Deborah Ann Coakley TRC Companies 1030 Wilmer Ave. Suite 100 Richmond, VA 23227 OCSWM FALL-NORTH (SW-1 & SW-2) Dear Deborah Coakley: Enclosed are the analytical results for sample(s) received by the laboratory on November 21, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Matthew Brainard matthew.brainard@pacelabs.com Project Manager 704-977-0942 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 19 #=CP# CERTIFICATIONS Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 19 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92699914001 6801-SW2 EPA 6010D 15 PASI-ASBW EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CJJK EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 19 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Sample: 6801-SW2 Lab ID: 92699914001 Collected: 11/20/23 09:35 Received: 11/21/23 12:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/03/23 13:38 7440-36-011/22/23 11:555.0 1 Arsenic ND ug/L 12/03/23 13:38 7440-38-211/22/23 11:5510.0 1 Barium 90.6 ug/L 12/03/23 13:38 7440-39-311/22/23 11:555.0 1 Beryllium ND ug/L 12/03/23 13:38 7440-41-711/22/23 11:551.0 1 Cadmium ND ug/L 12/03/23 13:38 7440-43-911/22/23 11:551.0 1 Chromium ND ug/L 12/03/23 13:38 7440-47-311/22/23 11:555.0 1 Cobalt ND ug/L 12/03/23 13:38 7440-48-411/22/23 11:555.0 1 Copper ND ug/L 12/03/23 13:38 7440-50-811/22/23 11:555.0 1 Lead ND ug/L 12/03/23 13:38 7439-92-111/22/23 11:555.0 1 Nickel ND ug/L 12/03/23 13:38 7440-02-011/22/23 11:555.0 1 Selenium ND ug/L 12/03/23 13:38 7782-49-211/22/23 11:5510.0 1 Silver ND ug/L 12/03/23 13:38 7440-22-411/22/23 11:555.0 1 Thallium ND ug/L 12/03/23 13:38 7440-28-011/22/23 11:5510.0 1 Vanadium ND ug/L 12/03/23 13:38 7440-62-211/22/23 11:555.0 1 Zinc ND ug/L 12/03/23 13:38 7440-66-611/22/23 11:5510.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/25/23 10:38 7439-97-611/23/23 16:180.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 11/30/23 18:52 67-64-125.0 1 Acrylonitrile ND ug/L 11/30/23 18:52 107-13-110.0 1 Benzene ND ug/L 11/30/23 18:52 71-43-21.0 1 Bromochloromethane ND ug/L 11/30/23 18:52 74-97-51.0 1 Bromodichloromethane ND ug/L 11/30/23 18:52 75-27-41.0 1 Bromoform ND ug/L 11/30/23 18:52 75-25-21.0 1 Bromomethane ND ug/L 11/30/23 18:52 74-83-9 v22.0 1 2-Butanone (MEK)ND ug/L 11/30/23 18:52 78-93-35.0 1 Carbon disulfide ND ug/L 11/30/23 18:52 75-15-02.0 1 Carbon tetrachloride ND ug/L 11/30/23 18:52 56-23-51.0 1 Chlorobenzene ND ug/L 11/30/23 18:52 108-90-71.0 1 Chloroethane ND ug/L 11/30/23 18:52 75-00-31.0 1 Chloroform ND ug/L 11/30/23 18:52 67-66-31.0 1 Chloromethane ND ug/L 11/30/23 18:52 74-87-31.0 1 Dibromochloromethane ND ug/L 11/30/23 18:52 124-48-11.0 1 Dibromomethane ND ug/L 11/30/23 18:52 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 11/30/23 18:52 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 11/30/23 18:52 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 11/30/23 18:52 110-57-61.0 1 1,1-Dichloroethane ND ug/L 11/30/23 18:52 75-34-31.0 1 1,2-Dichloroethane ND ug/L 11/30/23 18:52 107-06-21.0 1 1,1-Dichloroethene ND ug/L 11/30/23 18:52 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 11/30/23 18:52 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 19 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Sample: 6801-SW2 Lab ID: 92699914001 Collected: 11/20/23 09:35 Received: 11/21/23 12:30 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 11/30/23 18:52 156-60-51.0 1 1,2-Dichloropropane ND ug/L 11/30/23 18:52 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 11/30/23 18:52 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 11/30/23 18:52 10061-02-61.0 1 Ethylbenzene ND ug/L 11/30/23 18:52 100-41-41.0 1 2-Hexanone ND ug/L 11/30/23 18:52 591-78-65.0 1 Iodomethane ND ug/L 11/30/23 18:52 74-88-4 v220.0 1 Methylene Chloride ND ug/L 11/30/23 18:52 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 11/30/23 18:52 108-10-15.0 1 Naphthalene ND ug/L 11/30/23 18:52 91-20-31.0 1 Styrene ND ug/L 11/30/23 18:52 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 11/30/23 18:52 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 11/30/23 18:52 79-34-51.0 1 Tetrachloroethene ND ug/L 11/30/23 18:52 127-18-41.0 1 Toluene ND ug/L 11/30/23 18:52 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 11/30/23 18:52 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 11/30/23 18:52 79-00-51.0 1 Trichloroethene ND ug/L 11/30/23 18:52 79-01-61.0 1 Trichlorofluoromethane ND ug/L 11/30/23 18:52 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 11/30/23 18:52 96-18-41.0 1 Vinyl acetate ND ug/L 11/30/23 18:52 108-05-42.0 1 Vinyl chloride ND ug/L 11/30/23 18:52 75-01-41.0 1 Xylene (Total)ND ug/L 11/30/23 18:52 1330-20-71.0 1 m&p-Xylene ND ug/L 11/30/23 18:52 179601-23-12.0 1 o-Xylene ND ug/L 11/30/23 18:52 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)100 %11/30/23 18:52 460-00-470-130 1 1,2-Dichloroethane-d4 (S)99 %11/30/23 18:52 17060-07-070-130 1 Toluene-d8 (S)104 %11/30/23 18:52 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)15.5 ug/L 11/23/23 02:10 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)91 %11/23/23 02:10 17060-07-067-130 1 Toluene-d8 (S)92 %11/23/23 02:10 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:23 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815270 EPA 7470A EPA 7470A 7470 Mercury Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699914001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220654 Associated Lab Samples:92699914001 Matrix: Water Analyzed Mercury ug/L ND 0.20 11/25/23 10:05 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220655LABORATORY CONTROL SAMPLE: LCSSpike Mercury ug/L 2.52.5 99 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220656MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220657 MSD Result MSD % Rec RPD MSDMS Spike Conc. Mercury ug/L 2.5 101 75-125100 02.5ND 2.5 2.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815073 EPA 3010A EPA 6010D 6010 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699914001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4219471 Associated Lab Samples:92699914001 Matrix: Water Analyzed Antimony ug/L ND 5.0 12/03/23 11:26 Arsenic ug/L ND 10.0 12/03/23 11:26 Barium ug/L ND 5.0 12/03/23 11:26 Beryllium ug/L ND 1.0 12/03/23 11:26 Cadmium ug/L ND 1.0 12/03/23 11:26 Chromium ug/L ND 5.0 12/03/23 11:26 Cobalt ug/L ND 5.0 12/03/23 11:26 Copper ug/L ND 5.0 12/03/23 11:26 Lead ug/L ND 5.0 12/03/23 11:26 Nickel ug/L ND 5.0 12/03/23 11:26 Selenium ug/L ND 10.0 12/03/23 11:26 Silver ug/L ND 5.0 12/03/23 11:26 Thallium ug/L ND 10.0 12/03/23 11:26 Vanadium ug/L ND 5.0 12/03/23 11:26 Zinc ug/L ND 10.0 12/03/23 11:26 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4219472LABORATORY CONTROL SAMPLE: LCSSpike Antimony ug/L 509500 102 80-120 Arsenic ug/L 505500 101 80-120 Barium ug/L 521500 104 80-120 Beryllium ug/L 506500 101 80-120 Cadmium ug/L 510500 102 80-120 Chromium ug/L 510500 102 80-120 Cobalt ug/L 510500 102 80-120 Copper ug/L 512500 102 80-120 Lead ug/L 509500 102 80-120 Nickel ug/L 507500 101 80-120 Selenium ug/L 494500 99 80-120 Silver ug/L 255250 102 80-120 Thallium ug/L 515500 103 80-120 Vanadium ug/L 509500 102 80-120 Zinc ug/L 506500 101 80-120 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4219473MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4219474 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 102 75-125103 1500ND512 515 Arsenic ug/L 500 103 75-125103 0500ND515 516 Barium ug/L 500 102 75-125105 350080.1 589 606 Beryllium ug/L 500 103 75-125104 1500ND516 520 Cadmium ug/L 500 102 75-125102 1500ND508 512 Chromium ug/L 500 103 75-125103 1500ND513 517 Cobalt ug/L 500 102 75-125103 1500ND508 513 Copper ug/L 500 102 75-125103 1500ND510 514 Lead ug/L 500 101 75-125102 1500ND503 509 Nickel ug/L 500 101 75-125102 1500ND505 510 Selenium ug/L 500 104 75-125104 1500ND518 522 Silver ug/L 250 103 75-125103 0250ND257 258 Thallium ug/L 500 101 75-125103 1500ND509 515 Vanadium ug/L 500 101 75-125102 1500ND508 512 Zinc ug/L 500 101 75-125102 1500ND515 521 Parameter Units MS Result % Rec Limits Qual% RecConc. 4219475MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4219476 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 105 75-125104 1500ND525 522 Arsenic ug/L 500 105 75-125105 0500ND526 525 Barium ug/L 500 107 75-125107 0500ND539 541 Beryllium ug/L 500 106 75-125105 0500ND529 527 Cadmium ug/L 500 104 75-125104 0500ND519 518 Chromium ug/L 500 105 75-125105 0500ND528 526 Cobalt ug/L 500 104 75-125104 0500ND520 519 Copper ug/L 500 105 75-125105 0500ND524 524 Lead ug/L 500 103 75-125103 0500ND515 513 Nickel ug/L 500 103 75-125103 0500ND514 514 Selenium ug/L 500 107 75-125106 1500ND533 529 Silver ug/L 250 106 75-125105 1250ND264 262 Thallium ug/L 500 105 75-125104 1500ND526 521 Vanadium ug/L 500 104 75-125104 0500ND520 519 Zinc ug/L 500 103 75-125103 0500ND520 520 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 816395 EPA 8260D EPA 8260D 8260D MSV Low Level Landfill Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699914001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225648 Associated Lab Samples:92699914001 Matrix: Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 11/30/23 12:05 1,1,1-Trichloroethane ug/L ND 1.0 11/30/23 12:05 1,1,2,2-Tetrachloroethane ug/L ND 1.0 11/30/23 12:05 1,1,2-Trichloroethane ug/L ND 1.0 11/30/23 12:05 1,1-Dichloroethane ug/L ND 1.0 11/30/23 12:05 1,1-Dichloroethene ug/L ND 1.0 11/30/23 12:05 1,2,3-Trichloropropane ug/L ND 1.0 11/30/23 12:05 1,2-Dichlorobenzene ug/L ND 1.0 11/30/23 12:05 1,2-Dichloroethane ug/L ND 1.0 11/30/23 12:05 1,2-Dichloropropane ug/L ND 1.0 11/30/23 12:05 1,4-Dichlorobenzene ug/L ND 1.0 11/30/23 12:05 2-Butanone (MEK)ug/L ND 5.0 11/30/23 12:05 2-Hexanone ug/L ND 5.0 11/30/23 12:05 4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 11/30/23 12:05 Acetone ug/L ND 25.0 11/30/23 12:05 Acrylonitrile ug/L ND 10.0 11/30/23 12:05 Benzene ug/L ND 1.0 11/30/23 12:05 Bromochloromethane ug/L ND 1.0 11/30/23 12:05 Bromodichloromethane ug/L ND 1.0 11/30/23 12:05 Bromoform ug/L ND 1.0 11/30/23 12:05 Bromomethane ug/L ND 2.0 v211/30/23 12:05 Carbon disulfide ug/L ND 2.0 11/30/23 12:05 Carbon tetrachloride ug/L ND 1.0 11/30/23 12:05 Chlorobenzene ug/L ND 1.0 11/30/23 12:05 Chloroethane ug/L ND 1.0 11/30/23 12:05 Chloroform ug/L ND 1.0 11/30/23 12:05 Chloromethane ug/L ND 1.0 11/30/23 12:05 cis-1,2-Dichloroethene ug/L ND 1.0 11/30/23 12:05 cis-1,3-Dichloropropene ug/L ND 1.0 11/30/23 12:05 Dibromochloromethane ug/L ND 1.0 11/30/23 12:05 Dibromomethane ug/L ND 1.0 11/30/23 12:05 Ethylbenzene ug/L ND 1.0 11/30/23 12:05 Iodomethane ug/L ND 20.0 v211/30/23 12:05 m&p-Xylene ug/L ND 2.0 11/30/23 12:05 Methylene Chloride ug/L ND 5.0 11/30/23 12:05 Naphthalene ug/L ND 1.0 11/30/23 12:05 o-Xylene ug/L ND 1.0 11/30/23 12:05 Styrene ug/L ND 1.0 11/30/23 12:05 Tetrachloroethene ug/L ND 1.0 11/30/23 12:05 Toluene ug/L ND 1.0 11/30/23 12:05 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225648 Associated Lab Samples:92699914001 Matrix: Water Analyzed trans-1,2-Dichloroethene ug/L ND 1.0 11/30/23 12:05 trans-1,3-Dichloropropene ug/L ND 1.0 11/30/23 12:05 trans-1,4-Dichloro-2-butene ug/L ND 1.0 11/30/23 12:05 Trichloroethene ug/L ND 1.0 11/30/23 12:05 Trichlorofluoromethane ug/L ND 1.0 11/30/23 12:05 Vinyl acetate ug/L ND 2.0 11/30/23 12:05 Vinyl chloride ug/L ND 1.0 11/30/23 12:05 Xylene (Total)ug/L ND 1.0 11/30/23 12:05 1,2-Dichloroethane-d4 (S)%93 70-130 11/30/23 12:05 4-Bromofluorobenzene (S)%102 70-130 11/30/23 12:05 Toluene-d8 (S)%105 70-130 11/30/23 12:05 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225649LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 20.420 102 70-130 1,1,1-Trichloroethane ug/L 20.420 102 70-130 1,1,2,2-Tetrachloroethane ug/L 19.820 99 70-130 1,1,2-Trichloroethane ug/L 19.820 99 70-130 1,1-Dichloroethane ug/L 18.620 93 70-130 1,1-Dichloroethene ug/L 19.620 98 69-131 1,2,3-Trichloropropane ug/L 19.420 97 70-130 1,2-Dichlorobenzene ug/L 20.720 103 70-130 1,2-Dichloroethane ug/L 19.020 95 70-130 1,2-Dichloropropane ug/L 19.520 97 70-130 1,4-Dichlorobenzene ug/L 20.320 102 70-130 2-Butanone (MEK)ug/L 39.540 99 67-133 2-Hexanone ug/L 44.240 110 70-133 4-Methyl-2-pentanone (MIBK)ug/L 42.340 106 70-130 Acetone ug/L 39.440 99 67-130 Acrylonitrile ug/L 93.7100 94 70-130 Benzene ug/L 20.020 100 70-130 Bromochloromethane ug/L 19.620 98 70-130 Bromodichloromethane ug/L 19.320 96 70-130 Bromoform ug/L 19.820 99 70-133 Bromomethane ug/L 16.5 v32082 41-148 Carbon disulfide ug/L 19.420 97 70-131 Carbon tetrachloride ug/L 20.620 103 70-130 Chlorobenzene ug/L 20.320 102 70-130 Chloroethane ug/L 19.720 98 41-157 Chloroform ug/L 19.020 95 70-130 Chloromethane ug/L 18.920 94 59-141 cis-1,2-Dichloroethene ug/L 18.720 93 70-130 cis-1,3-Dichloropropene ug/L 20.220 101 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225649LABORATORY CONTROL SAMPLE: LCSSpike Dibromochloromethane ug/L 19.820 99 70-130 Dibromomethane ug/L 20.020 100 70-130 Ethylbenzene ug/L 20.120 100 70-130 Iodomethane ug/L 34.9 v34087 57-140 m&p-Xylene ug/L 41.040 102 70-130 Methylene Chloride ug/L 17.320 87 62-130 Naphthalene ug/L 21.920 110 70-135 o-Xylene ug/L 20.120 100 70-130 Styrene ug/L 20.720 103 70-130 Tetrachloroethene ug/L 19.620 98 70-130 Toluene ug/L 19.420 97 70-130 trans-1,2-Dichloroethene ug/L 19.520 97 70-130 trans-1,3-Dichloropropene ug/L 20.220 101 70-130 trans-1,4-Dichloro-2-butene ug/L 20.320 102 57-149 Trichloroethene ug/L 20.920 104 70-130 Trichlorofluoromethane ug/L 21.820 109 57-130 Vinyl acetate ug/L 35.240 88 70-141 Vinyl chloride ug/L 17.320 87 66-140 Xylene (Total)ug/L 61.160 102 70-130 1,2-Dichloroethane-d4 (S)%96 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4225650MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4225651 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 128 70-146127 020ND25.6 25.5 1,1,1-Trichloroethane ug/L 20 113 70-150114 120ND22.6 22.8 1,1,2,2-Tetrachloroethane ug/L 20 117 66-144115 220ND23.3 23.0 1,1,2-Trichloroethane ug/L 20 118 70-142121 320ND23.5 24.1 1,1-Dichloroethane ug/L 20 101 68-150100 120ND20.2 20.1 1,1-Dichloroethene ug/L 20 81 64-16284 320ND16.3 16.8 1,2,3-Trichloropropane ug/L 20 114 66-144108 520ND22.7 21.6 1,2-Dichlorobenzene ug/L 20 120 70-142122 120ND24.0 24.4 1,2-Dichloroethane ug/L 20 108 68-145106 220ND21.7 21.2 1,2-Dichloropropane ug/L 20 112 70-144112 020ND22.5 22.4 1,4-Dichlorobenzene ug/L 20 118 70-140119 120ND23.5 23.9 2-Butanone (MEK)ug/L 40 105 57-156104 140ND41.8 41.5 2-Hexanone ug/L 40 123 62-153118 440ND49.3 47.2 4-Methyl-2-pentanone (MIBK) ug/L 40 117 65-144115 240ND46.6 45.8 Acetone ug/L 40 90 49-16290 040ND36.2 36.1 Acrylonitrile ug/L 100 97 59-15594 3100ND96.7 94.1 Benzene ug/L 20 107 68-144109 220ND21.4 21.7 Bromochloromethane ug/L 20 109 70-148108 120ND21.8 21.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4225650MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4225651 MSD Result MSD % Rec RPD MSDMS Spike Conc. Bromodichloromethane ug/L 20 117 70-141121 320ND23.4 24.2 Bromoform ug/L 20 124 59-144121 220ND24.8 24.3 Bromomethane ug/L v3204723-19046 220ND9.5 9.3 Carbon disulfide ug/L 20 64 64-16065 220ND12.8 13.1 Carbon tetrachloride ug/L 20 117 70-147119 220ND23.4 23.7 Chlorobenzene ug/L 20 122 70-143122 020ND24.4 24.4 Chloroethane ug/L 20 58 55-19057 120ND11.5 11.4 Chloroform ug/L 20 110 67-148109 120ND22.0 21.8 Chloromethane ug/L M1201138-18011 220ND2.2 2.3 cis-1,2-Dichloroethene ug/L 20 104 67-151105 120ND20.9 21.0 cis-1,3-Dichloropropene ug/L 20 116 70-142120 320ND23.3 24.0 Dibromochloromethane ug/L 20 120 68-140121 120ND24.0 24.1 Dibromomethane ug/L 20 119 70-142120 120ND23.7 24.0 Ethylbenzene ug/L 20 121 70-145120 120ND24.2 24.0 Iodomethane ug/L 40 69 37-16072 440ND27.8 28.8 m&p-Xylene ug/L 40 122 70-148122 040ND48.8 49.0 Methylene Chloride ug/L 20 86 54-14989 320ND17.6 18.0 Naphthalene ug/L 20 121 62-154122 120ND24.3 24.5 o-Xylene ug/L 20 122 70-145119 320ND24.5 23.7 Styrene ug/L 20 124 70-147124 020ND24.8 24.8 Tetrachloroethene ug/L 20 115 70-145115 020ND23.0 22.9 Toluene ug/L 20 115 65-146118 320ND23.0 23.7 trans-1,2-Dichloroethene ug/L 20 97 69-15599 220ND19.4 19.8 trans-1,3-Dichloropropene ug/L 20 122 70-142121 120ND24.5 24.1 trans-1,4-Dichloro-2-butene ug/L 20 111 39-149104 720ND22.3 20.8 Trichloroethene ug/L 20 121 70-152123 220ND24.1 24.5 Trichlorofluoromethane ug/L 20 76 60-15876 020ND15.2 15.3 Vinyl acetate ug/L 40 85 56-15783 340ND33.9 33.0 Vinyl chloride ug/L M1202251-17822 120ND4.3 4.4 Xylene (Total)ug/L 60 122 70-146121 160ND73.3 72.7 1,2-Dichloroethane-d4 (S)%99 70-13097 4-Bromofluorobenzene (S)%101 70-13099 Toluene-d8 (S)%98 70-13099 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815205 EPA 8260D Mod. EPA 8260D Mod. 8260D MSV SIM Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92699914001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220270 Associated Lab Samples:92699914001 Matrix: Water Analyzed 1,4-Dioxane (p-Dioxane)ug/L ND 2.0 11/22/23 17:58 1,2-Dichloroethane-d4 (S)%88 67-130 11/22/23 17:58 Toluene-d8 (S)%90 70-130 11/22/23 17:58 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220271LABORATORY CONTROL SAMPLE: LCSSpike 1,4-Dioxane (p-Dioxane)ug/L 17.120 86 70-130 1,2-Dichloroethane-d4 (S)%87 67-130 Toluene-d8 (S)%92 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220272MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220273 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 85 55-13790 620ND16.9 17.9 1,2-Dichloroethane-d4 (S)%89 67-13090 Toluene-d8 (S)%92 70-13092 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220274MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220275 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 96 55-13795 020ND19.1 19.1 1,2-Dichloroethane-d4 (S)%88 67-13089 Toluene-d8 (S)%91 70-13092 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815250 SM 4500-S2D-2011 SM 4500-S2D-2011 4500S2D Sulfide Water Laboratory:Pace Analytical Services - Asheville Associated Lab Samples: 92699914001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220621 Associated Lab Samples:92699914001 Matrix: Water Analyzed Sulfide mg/L ND 0.10 11/23/23 04:03 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220622LABORATORY CONTROL SAMPLE: LCSSpike Sulfide mg/L 0.520.5 105 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220623MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699313003 4220624 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 103 80-120106 40.5ND 0.51 0.53 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220637MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699898001 4220638 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 102 80-120106 30.5ND 0.51 0.53 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 19 #=QL# QUALIFIERS Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 The continuing calibration verification was below the method acceptance limit. The analyte was not detected in the associated samples and the sensitivity of the instrument was verified with a reporting limit check standard.v2 The continuing calibration verification was below the method acceptance limit. Any detection for the analyte in the associated samples may have low bias.v3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 19 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92699914 OCSWM FALL-NORTH (SW-1 & SW-2) Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92699914001 815073 8151836801-SW2 EPA 3010A EPA 6010D 92699914001 815270 8152936801-SW2 EPA 7470A EPA 7470A 92699914001 8163956801-SW2 EPA 8260D 92699914001 8152056801-SW2 EPA 8260D Mod. 92699914001 8152506801-SW2 SM 4500-S2D-2011 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/04/2023 04:24 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 19 Page 17 of 19 Page 18 of 19 Page 19 of 19 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 7: Trip Blanks #=CL# December 06, 2023 LIMS USE: FR - DEBORAH COAKLEY LIMS OBJECT ID: 92700186 92700186 Project: Pace Project No.: RE: Deborah Ann Coakley TRC Companies 1030 Wilmer Ave. Suite 100 Richmond, VA 23227 OCSWM FALL-NORTH Dear Deborah Coakley: Enclosed are the analytical results for sample(s) received by the laboratory on November 22, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Matthew Brainard matthew.brainard@pacelabs.com Project Manager 704-977-0942 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 40 #=CP# CERTIFICATIONS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 40 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92700186001 6801-MW06R EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186002 6801-MW07R EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186003 6801-MW14A EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186004 6801-MW14B EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186005 6801-MW15 EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186006 6801-MW16 EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186007 6801-MW17 EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186008 6801-MW22 EPA 6010D 15 PASI-ADBB1 EPA 7470A 1 PASI-ABM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 40 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts EPA 8260D 51 PASI-CLMB EPA 8260D Mod.3 PASI-CTEG SM 4500-S2D-2011 1 PASI-AJP1 92700186009 TRIP BLANK 1 EPA 8260D 51 PASI-CLMB 92700186010 TRIP BLANK 2 EPA 8260D 51 PASI-CLMB PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW06R Lab ID: 92700186001 Collected: 11/20/23 16:15 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 21:45 7440-36-011/28/23 12:305.0 1 Arsenic ND ug/L 12/04/23 21:45 7440-38-211/28/23 12:3010.0 1 Barium 5.8 ug/L 12/04/23 21:45 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 21:45 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 21:45 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 21:45 7440-47-311/28/23 12:305.0 1 Cobalt ND ug/L 12/04/23 21:45 7440-48-411/28/23 12:305.0 1 Copper ND ug/L 12/04/23 21:45 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 21:45 7439-92-111/28/23 12:305.0 1 Nickel ND ug/L 12/04/23 21:45 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 21:45 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 21:45 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 21:45 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 21:45 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 21:45 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:41 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 07:06 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 07:06 107-13-110.0 1 Benzene ND ug/L 12/01/23 07:06 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 07:06 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 07:06 75-27-41.0 1 Bromoform ND ug/L 12/01/23 07:06 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 07:06 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 07:06 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 07:06 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 07:06 56-23-51.0 1 Chlorobenzene ND ug/L 12/01/23 07:06 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 07:06 75-00-31.0 1 Chloroform ND ug/L 12/01/23 07:06 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 07:06 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 07:06 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 07:06 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 07:06 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 12/01/23 07:06 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 07:06 110-57-61.0 1 1,1-Dichloroethane ND ug/L 12/01/23 07:06 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 07:06 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 07:06 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 12/01/23 07:06 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW06R Lab ID: 92700186001 Collected: 11/20/23 16:15 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 07:06 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 07:06 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 07:06 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 07:06 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 07:06 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 07:06 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 07:06 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 07:06 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 07:06 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 07:06 91-20-31.0 1 Styrene ND ug/L 12/01/23 07:06 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 07:06 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 07:06 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 07:06 127-18-41.0 1 Toluene ND ug/L 12/01/23 07:06 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 07:06 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 07:06 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 07:06 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 07:06 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 07:06 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 07:06 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 07:06 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 07:06 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 07:06 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 07:06 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)94 %12/01/23 07:06 460-00-470-130 1 1,2-Dichloroethane-d4 (S)94 %12/01/23 07:06 17060-07-070-130 1 Toluene-d8 (S)101 %12/01/23 07:06 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)ND ug/L 11/23/23 07:32 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)86 %11/23/23 07:32 17060-07-067-130 1 Toluene-d8 (S)90 %11/23/23 07:32 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:26 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW07R Lab ID: 92700186002 Collected: 11/20/23 16:45 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 21:47 7440-36-011/28/23 12:305.0 1 Arsenic ND ug/L 12/04/23 21:47 7440-38-211/28/23 12:3010.0 1 Barium 5.3 ug/L 12/04/23 21:47 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 21:47 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 21:47 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 21:47 7440-47-311/28/23 12:305.0 1 Cobalt ND ug/L 12/04/23 21:47 7440-48-411/28/23 12:305.0 1 Copper ND ug/L 12/04/23 21:47 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 21:47 7439-92-111/28/23 12:305.0 1 Nickel 6.6 ug/L 12/04/23 21:47 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 21:47 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 21:47 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 21:47 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 21:47 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 21:47 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:43 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 07:24 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 07:24 107-13-110.0 1 Benzene ND ug/L 12/01/23 07:24 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 07:24 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 07:24 75-27-41.0 1 Bromoform ND ug/L 12/01/23 07:24 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 07:24 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 07:24 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 07:24 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 07:24 56-23-51.0 1 Chlorobenzene ND ug/L 12/01/23 07:24 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 07:24 75-00-31.0 1 Chloroform ND ug/L 12/01/23 07:24 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 07:24 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 07:24 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 07:24 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 07:24 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 12/01/23 07:24 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 07:24 110-57-61.0 1 1,1-Dichloroethane ND ug/L 12/01/23 07:24 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 07:24 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 07:24 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 12/01/23 07:24 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW07R Lab ID: 92700186002 Collected: 11/20/23 16:45 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 07:24 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 07:24 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 07:24 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 07:24 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 07:24 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 07:24 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 07:24 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 07:24 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 07:24 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 07:24 91-20-31.0 1 Styrene ND ug/L 12/01/23 07:24 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 07:24 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 07:24 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 07:24 127-18-41.0 1 Toluene ND ug/L 12/01/23 07:24 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 07:24 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 07:24 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 07:24 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 07:24 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 07:24 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 07:24 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 07:24 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 07:24 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 07:24 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 07:24 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)95 %12/01/23 07:24 460-00-470-130 1 1,2-Dichloroethane-d4 (S)92 %12/01/23 07:24 17060-07-070-130 1 Toluene-d8 (S)100 %12/01/23 07:24 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)7.5 ug/L 11/23/23 07:53 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)88 %11/23/23 07:53 17060-07-067-130 1 Toluene-d8 (S)90 %11/23/23 07:53 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:28 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW14A Lab ID: 92700186003 Collected: 11/21/23 08:15 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 21:50 7440-36-011/28/23 12:305.0 1 Arsenic ND ug/L 12/04/23 21:50 7440-38-211/28/23 12:3010.0 1 Barium 17.4 ug/L 12/04/23 21:50 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 21:50 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 21:50 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 21:50 7440-47-311/28/23 12:305.0 1 Cobalt 7.5 ug/L 12/04/23 21:50 7440-48-411/28/23 12:305.0 1 Copper 11.3 ug/L 12/04/23 21:50 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 21:50 7439-92-111/28/23 12:305.0 1 Nickel 8.3 ug/L 12/04/23 21:50 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 21:50 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 21:50 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 21:50 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 21:50 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 21:50 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:49 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 07:43 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 07:43 107-13-110.0 1 Benzene ND ug/L 12/01/23 07:43 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 07:43 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 07:43 75-27-41.0 1 Bromoform ND ug/L 12/01/23 07:43 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 07:43 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 07:43 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 07:43 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 07:43 56-23-51.0 1 Chlorobenzene ND ug/L 12/01/23 07:43 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 07:43 75-00-31.0 1 Chloroform ND ug/L 12/01/23 07:43 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 07:43 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 07:43 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 07:43 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 07:43 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 12/01/23 07:43 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 07:43 110-57-61.0 1 1,1-Dichloroethane 2.3 ug/L 12/01/23 07:43 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 07:43 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 07:43 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 12/01/23 07:43 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW14A Lab ID: 92700186003 Collected: 11/21/23 08:15 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 07:43 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 07:43 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 07:43 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 07:43 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 07:43 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 07:43 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 07:43 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 07:43 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 07:43 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 07:43 91-20-31.0 1 Styrene ND ug/L 12/01/23 07:43 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 07:43 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 07:43 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 07:43 127-18-41.0 1 Toluene ND ug/L 12/01/23 07:43 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 07:43 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 07:43 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 07:43 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 07:43 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 07:43 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 07:43 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 07:43 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 07:43 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 07:43 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 07:43 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)95 %12/01/23 07:43 460-00-470-130 1 1,2-Dichloroethane-d4 (S)90 %12/01/23 07:43 17060-07-070-130 1 Toluene-d8 (S)100 %12/01/23 07:43 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)136 ug/L 11/28/23 17:13 123-91-14.0 2 Surrogates 1,2-Dichloroethane-d4 (S)105 %11/28/23 17:13 17060-07-067-130 2 Toluene-d8 (S)106 %11/28/23 17:13 2037-26-570-130 2 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:29 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW14B Lab ID: 92700186004 Collected: 11/21/23 07:50 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 21:53 7440-36-011/28/23 12:305.0 1 Arsenic 15.7 ug/L 12/04/23 21:53 7440-38-211/28/23 12:3010.0 1 Barium 290 ug/L 12/04/23 21:53 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 21:53 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 21:53 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 21:53 7440-47-311/28/23 12:305.0 1 Cobalt 17.1 ug/L 12/04/23 21:53 7440-48-411/28/23 12:305.0 1 Copper ND ug/L 12/04/23 21:53 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 21:53 7439-92-111/28/23 12:305.0 1 Nickel 7.8 ug/L 12/04/23 21:53 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 21:53 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 21:53 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 21:53 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 21:53 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 21:53 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:51 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 08:01 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 08:01 107-13-110.0 1 Benzene 1.2 ug/L 12/01/23 08:01 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 08:01 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 08:01 75-27-41.0 1 Bromoform ND ug/L 12/01/23 08:01 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 08:01 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 08:01 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 08:01 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 08:01 56-23-51.0 1 Chlorobenzene 4.2 ug/L 12/01/23 08:01 108-90-71.0 1 Chloroethane 1.9 ug/L 12/01/23 08:01 75-00-31.0 1 Chloroform ND ug/L 12/01/23 08:01 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 08:01 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 08:01 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 08:01 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 08:01 95-50-11.0 1 1,4-Dichlorobenzene 2.4 ug/L 12/01/23 08:01 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 08:01 110-57-61.0 1 1,1-Dichloroethane 2.2 ug/L 12/01/23 08:01 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 08:01 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 08:01 75-35-41.0 1 cis-1,2-Dichloroethene 1.9 ug/L 12/01/23 08:01 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW14B Lab ID: 92700186004 Collected: 11/21/23 07:50 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 08:01 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 08:01 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 08:01 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 08:01 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 08:01 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 08:01 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 08:01 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 08:01 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 08:01 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 08:01 91-20-31.0 1 Styrene ND ug/L 12/01/23 08:01 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 08:01 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 08:01 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 08:01 127-18-41.0 1 Toluene ND ug/L 12/01/23 08:01 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 08:01 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 08:01 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 08:01 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 08:01 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 08:01 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 08:01 108-05-42.0 1 Vinyl chloride 1.6 ug/L 12/01/23 08:01 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 08:01 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 08:01 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 08:01 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)97 %12/01/23 08:01 460-00-470-130 1 1,2-Dichloroethane-d4 (S)96 %12/01/23 08:01 17060-07-070-130 1 Toluene-d8 (S)99 %12/01/23 08:01 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)170 ug/L 11/28/23 17:32 123-91-18.0 4 Surrogates 1,2-Dichloroethane-d4 (S)99 %11/28/23 17:32 17060-07-067-130 4 Toluene-d8 (S)105 %11/28/23 17:32 2037-26-570-130 4 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:30 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW15 Lab ID: 92700186005 Collected: 11/21/23 08:40 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 21:56 7440-36-011/28/23 12:305.0 1 Arsenic ND ug/L 12/04/23 21:56 7440-38-211/28/23 12:3010.0 1 Barium 160 ug/L 12/04/23 21:56 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 21:56 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 21:56 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 21:56 7440-47-311/28/23 12:305.0 1 Cobalt 14.8 ug/L 12/04/23 21:56 7440-48-411/28/23 12:305.0 1 Copper ND ug/L 12/04/23 21:56 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 21:56 7439-92-111/28/23 12:305.0 1 Nickel 16.2 ug/L 12/04/23 21:56 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 21:56 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 21:56 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 21:56 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 21:56 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 21:56 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:53 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 08:20 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 08:20 107-13-110.0 1 Benzene ND ug/L 12/01/23 08:20 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 08:20 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 08:20 75-27-41.0 1 Bromoform ND ug/L 12/01/23 08:20 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 08:20 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 08:20 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 08:20 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 08:20 56-23-51.0 1 Chlorobenzene 5.7 ug/L 12/01/23 08:20 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 08:20 75-00-31.0 1 Chloroform ND ug/L 12/01/23 08:20 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 08:20 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 08:20 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 08:20 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 08:20 95-50-11.0 1 1,4-Dichlorobenzene 6.7 ug/L 12/01/23 08:20 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 08:20 110-57-61.0 1 1,1-Dichloroethane 2.2 ug/L 12/01/23 08:20 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 08:20 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 08:20 75-35-41.0 1 cis-1,2-Dichloroethene 50.3 ug/L 12/01/23 08:20 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW15 Lab ID: 92700186005 Collected: 11/21/23 08:40 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 08:20 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 08:20 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 08:20 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 08:20 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 08:20 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 08:20 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 08:20 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 08:20 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 08:20 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 08:20 91-20-31.0 1 Styrene ND ug/L 12/01/23 08:20 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 08:20 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 08:20 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 08:20 127-18-41.0 1 Toluene ND ug/L 12/01/23 08:20 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 08:20 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 08:20 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 08:20 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 08:20 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 08:20 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 08:20 108-05-42.0 1 Vinyl chloride 6.2 ug/L 12/01/23 08:20 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 08:20 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 08:20 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 08:20 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)94 %12/01/23 08:20 460-00-470-130 1 1,2-Dichloroethane-d4 (S)96 %12/01/23 08:20 17060-07-070-130 1 Toluene-d8 (S)99 %12/01/23 08:20 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)84.1 ug/L 11/23/23 08:57 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)86 %11/23/23 08:57 17060-07-067-130 1 Toluene-d8 (S)89 %11/23/23 08:57 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:31 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW16 Lab ID: 92700186006 Collected: 11/20/23 15:10 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 21:59 7440-36-011/28/23 12:305.0 1 Arsenic ND ug/L 12/04/23 21:59 7440-38-211/28/23 12:3010.0 1 Barium 179 ug/L 12/04/23 21:59 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 21:59 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 21:59 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 21:59 7440-47-311/28/23 12:305.0 1 Cobalt ND ug/L 12/04/23 21:59 7440-48-411/28/23 12:305.0 1 Copper ND ug/L 12/04/23 21:59 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 21:59 7439-92-111/28/23 12:305.0 1 Nickel ND ug/L 12/04/23 21:59 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 21:59 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 21:59 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 21:59 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 21:59 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 21:59 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:55 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 08:39 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 08:39 107-13-110.0 1 Benzene ND ug/L 12/01/23 08:39 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 08:39 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 08:39 75-27-41.0 1 Bromoform ND ug/L 12/01/23 08:39 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 08:39 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 08:39 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 08:39 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 08:39 56-23-51.0 1 Chlorobenzene ND ug/L 12/01/23 08:39 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 08:39 75-00-31.0 1 Chloroform ND ug/L 12/01/23 08:39 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 08:39 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 08:39 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 08:39 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 08:39 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 12/01/23 08:39 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 08:39 110-57-61.0 1 1,1-Dichloroethane ND ug/L 12/01/23 08:39 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 08:39 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 08:39 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 12/01/23 08:39 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW16 Lab ID: 92700186006 Collected: 11/20/23 15:10 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 08:39 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 08:39 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 08:39 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 08:39 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 08:39 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 08:39 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 08:39 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 08:39 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 08:39 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 08:39 91-20-31.0 1 Styrene ND ug/L 12/01/23 08:39 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 08:39 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 08:39 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 08:39 127-18-41.0 1 Toluene ND ug/L 12/01/23 08:39 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 08:39 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 08:39 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 08:39 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 08:39 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 08:39 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 08:39 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 08:39 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 08:39 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 08:39 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 08:39 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)95 %12/01/23 08:39 460-00-470-130 1 1,2-Dichloroethane-d4 (S)91 %12/01/23 08:39 17060-07-070-130 1 Toluene-d8 (S)100 %12/01/23 08:39 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)11.7 ug/L 11/23/23 09:19 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)87 %11/23/23 09:19 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 09:19 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:28 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW17 Lab ID: 92700186007 Collected: 11/20/23 14:35 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 22:13 7440-36-011/28/23 12:305.0 1 Arsenic ND ug/L 12/04/23 22:13 7440-38-211/28/23 12:3010.0 1 Barium 27.5 ug/L 12/04/23 22:13 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 22:13 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 22:13 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 22:13 7440-47-311/28/23 12:305.0 1 Cobalt ND ug/L 12/04/23 22:13 7440-48-411/28/23 12:305.0 1 Copper ND ug/L 12/04/23 22:13 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 22:13 7439-92-111/28/23 12:305.0 1 Nickel ND ug/L 12/04/23 22:13 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 22:13 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 22:13 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 22:13 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 22:13 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 22:13 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:57 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 08:57 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 08:57 107-13-110.0 1 Benzene ND ug/L 12/01/23 08:57 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 08:57 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 08:57 75-27-41.0 1 Bromoform ND ug/L 12/01/23 08:57 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 08:57 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 08:57 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 08:57 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 08:57 56-23-51.0 1 Chlorobenzene ND ug/L 12/01/23 08:57 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 08:57 75-00-31.0 1 Chloroform ND ug/L 12/01/23 08:57 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 08:57 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 08:57 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 08:57 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 08:57 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 12/01/23 08:57 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 08:57 110-57-61.0 1 1,1-Dichloroethane ND ug/L 12/01/23 08:57 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 08:57 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 08:57 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 12/01/23 08:57 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW17 Lab ID: 92700186007 Collected: 11/20/23 14:35 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 08:57 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 08:57 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 08:57 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 08:57 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 08:57 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 08:57 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 08:57 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 08:57 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 08:57 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 08:57 91-20-31.0 1 Styrene ND ug/L 12/01/23 08:57 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 08:57 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 08:57 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 08:57 127-18-41.0 1 Toluene ND ug/L 12/01/23 08:57 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 08:57 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 08:57 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 08:57 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 08:57 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 08:57 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 08:57 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 08:57 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 08:57 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 08:57 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 08:57 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)95 %12/01/23 08:57 460-00-470-130 1 1,2-Dichloroethane-d4 (S)89 %12/01/23 08:57 17060-07-070-130 1 Toluene-d8 (S)102 %12/01/23 08:57 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)2.2 ug/L 11/23/23 09:40 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)88 %11/23/23 09:40 17060-07-067-130 1 Toluene-d8 (S)90 %11/23/23 09:40 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:29 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW22 Lab ID: 92700186008 Collected: 11/20/23 15:50 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 6010D Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6010 MET ICP Antimony ND ug/L 12/04/23 22:16 7440-36-011/28/23 12:305.0 1 Arsenic ND ug/L 12/04/23 22:16 7440-38-211/28/23 12:3010.0 1 Barium 63.7 ug/L 12/04/23 22:16 7440-39-311/28/23 12:305.0 1 Beryllium ND ug/L 12/04/23 22:16 7440-41-711/28/23 12:301.0 1 Cadmium ND ug/L 12/04/23 22:16 7440-43-911/28/23 12:301.0 1 Chromium ND ug/L 12/04/23 22:16 7440-47-311/28/23 12:305.0 1 Cobalt ND ug/L 12/04/23 22:16 7440-48-411/28/23 12:305.0 1 Copper ND ug/L 12/04/23 22:16 7440-50-811/28/23 12:305.0 1 Lead ND ug/L 12/04/23 22:16 7439-92-111/28/23 12:305.0 1 Nickel ND ug/L 12/04/23 22:16 7440-02-011/28/23 12:305.0 1 Selenium ND ug/L 12/04/23 22:16 7782-49-211/28/23 12:3010.0 1 Silver ND ug/L 12/04/23 22:16 7440-22-411/28/23 12:305.0 1 Thallium ND ug/L 12/04/23 22:16 7440-28-011/28/23 12:3010.0 1 Vanadium ND ug/L 12/04/23 22:16 7440-62-211/28/23 12:305.0 1 Zinc ND ug/L 12/04/23 22:16 7440-66-611/28/23 12:3010.0 1 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 11/26/23 16:59 7439-97-611/26/23 12:560.20 1 Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 09:16 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 09:16 107-13-110.0 1 Benzene ND ug/L 12/01/23 09:16 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 09:16 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 09:16 75-27-41.0 1 Bromoform ND ug/L 12/01/23 09:16 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 09:16 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 09:16 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 09:16 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 09:16 56-23-51.0 1 Chlorobenzene 2.8 ug/L 12/01/23 09:16 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 09:16 75-00-31.0 1 Chloroform ND ug/L 12/01/23 09:16 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 09:16 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 09:16 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 09:16 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 09:16 95-50-11.0 1 1,4-Dichlorobenzene 2.1 ug/L 12/01/23 09:16 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 09:16 110-57-61.0 1 1,1-Dichloroethane 3.3 ug/L 12/01/23 09:16 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 09:16 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 09:16 75-35-41.0 1 cis-1,2-Dichloroethene 2.3 ug/L 12/01/23 09:16 156-59-21.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: 6801-MW22 Lab ID: 92700186008 Collected: 11/20/23 15:50 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill trans-1,2-Dichloroethene ND ug/L 12/01/23 09:16 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 09:16 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 09:16 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 09:16 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 09:16 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 09:16 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 09:16 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 09:16 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 09:16 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 09:16 91-20-31.0 1 Styrene ND ug/L 12/01/23 09:16 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 09:16 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 09:16 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 09:16 127-18-41.0 1 Toluene ND ug/L 12/01/23 09:16 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 09:16 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 09:16 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 09:16 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 09:16 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 09:16 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 09:16 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 09:16 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 09:16 1330-20-71.0 1 m&p-Xylene ND ug/L 12/01/23 09:16 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 09:16 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)94 %12/01/23 09:16 460-00-470-130 1 1,2-Dichloroethane-d4 (S)90 %12/01/23 09:16 17060-07-070-130 1 Toluene-d8 (S)99 %12/01/23 09:16 2037-26-570-130 1 Analytical Method: EPA 8260D Mod. Pace Analytical Services - Charlotte 8260D MSV SIM 1,4-Dioxane (p-Dioxane)78.8 ug/L 11/23/23 10:02 123-91-12.0 1 Surrogates 1,2-Dichloroethane-d4 (S)89 %11/23/23 10:02 17060-07-067-130 1 Toluene-d8 (S)91 %11/23/23 10:02 2037-26-570-130 1 Analytical Method: SM 4500-S2D-2011 Pace Analytical Services - Asheville 4500S2D Sulfide Water Sulfide ND mg/L 11/23/23 04:29 18496-25-80.10 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: TRIP BLANK 1 Lab ID: 92700186009 Collected: 11/21/23 00:00 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 02:28 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 02:28 107-13-110.0 1 Benzene ND ug/L 12/01/23 02:28 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 02:28 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 02:28 75-27-41.0 1 Bromoform ND ug/L 12/01/23 02:28 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 02:28 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 02:28 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 02:28 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 02:28 56-23-51.0 1 Chlorobenzene ND ug/L 12/01/23 02:28 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 02:28 75-00-31.0 1 Chloroform ND ug/L 12/01/23 02:28 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 02:28 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 02:28 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 02:28 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 02:28 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 12/01/23 02:28 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 02:28 110-57-61.0 1 1,1-Dichloroethane ND ug/L 12/01/23 02:28 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 02:28 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 02:28 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 12/01/23 02:28 156-59-21.0 1 trans-1,2-Dichloroethene ND ug/L 12/01/23 02:28 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 02:28 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 02:28 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 02:28 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 02:28 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 02:28 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 02:28 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 02:28 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 02:28 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 02:28 91-20-31.0 1 Styrene ND ug/L 12/01/23 02:28 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 02:28 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 02:28 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 02:28 127-18-41.0 1 Toluene ND ug/L 12/01/23 02:28 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 02:28 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 02:28 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 02:28 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 02:28 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 02:28 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 02:28 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 02:28 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 02:28 1330-20-71.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: TRIP BLANK 1 Lab ID: 92700186009 Collected: 11/21/23 00:00 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill m&p-Xylene ND ug/L 12/01/23 02:28 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 02:28 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)94 %12/01/23 02:28 460-00-470-130 1 1,2-Dichloroethane-d4 (S)89 %12/01/23 02:28 17060-07-070-130 1 Toluene-d8 (S)99 %12/01/23 02:28 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: TRIP BLANK 2 Lab ID: 92700186010 Collected: 11/21/23 00:00 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill Acetone ND ug/L 12/01/23 02:47 67-64-125.0 1 Acrylonitrile ND ug/L 12/01/23 02:47 107-13-110.0 1 Benzene ND ug/L 12/01/23 02:47 71-43-21.0 1 Bromochloromethane ND ug/L 12/01/23 02:47 74-97-51.0 1 Bromodichloromethane ND ug/L 12/01/23 02:47 75-27-41.0 1 Bromoform ND ug/L 12/01/23 02:47 75-25-21.0 1 Bromomethane ND ug/L 12/01/23 02:47 74-83-9 IH2.0 1 2-Butanone (MEK)ND ug/L 12/01/23 02:47 78-93-35.0 1 Carbon disulfide ND ug/L 12/01/23 02:47 75-15-02.0 1 Carbon tetrachloride ND ug/L 12/01/23 02:47 56-23-51.0 1 Chlorobenzene ND ug/L 12/01/23 02:47 108-90-71.0 1 Chloroethane ND ug/L 12/01/23 02:47 75-00-31.0 1 Chloroform ND ug/L 12/01/23 02:47 67-66-31.0 1 Chloromethane ND ug/L 12/01/23 02:47 74-87-31.0 1 Dibromochloromethane ND ug/L 12/01/23 02:47 124-48-11.0 1 Dibromomethane ND ug/L 12/01/23 02:47 74-95-31.0 1 1,2-Dichlorobenzene ND ug/L 12/01/23 02:47 95-50-11.0 1 1,4-Dichlorobenzene ND ug/L 12/01/23 02:47 106-46-71.0 1 trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 02:47 110-57-61.0 1 1,1-Dichloroethane ND ug/L 12/01/23 02:47 75-34-31.0 1 1,2-Dichloroethane ND ug/L 12/01/23 02:47 107-06-21.0 1 1,1-Dichloroethene ND ug/L 12/01/23 02:47 75-35-41.0 1 cis-1,2-Dichloroethene ND ug/L 12/01/23 02:47 156-59-21.0 1 trans-1,2-Dichloroethene ND ug/L 12/01/23 02:47 156-60-51.0 1 1,2-Dichloropropane ND ug/L 12/01/23 02:47 78-87-51.0 1 cis-1,3-Dichloropropene ND ug/L 12/01/23 02:47 10061-01-51.0 1 trans-1,3-Dichloropropene ND ug/L 12/01/23 02:47 10061-02-61.0 1 Ethylbenzene ND ug/L 12/01/23 02:47 100-41-41.0 1 2-Hexanone ND ug/L 12/01/23 02:47 591-78-65.0 1 Iodomethane ND ug/L 12/01/23 02:47 74-88-420.0 1 Methylene Chloride ND ug/L 12/01/23 02:47 75-09-25.0 1 4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 02:47 108-10-15.0 1 Naphthalene ND ug/L 12/01/23 02:47 91-20-31.0 1 Styrene ND ug/L 12/01/23 02:47 100-42-51.0 1 1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 02:47 630-20-61.0 1 1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 02:47 79-34-51.0 1 Tetrachloroethene ND ug/L 12/01/23 02:47 127-18-41.0 1 Toluene ND ug/L 12/01/23 02:47 108-88-31.0 1 1,1,1-Trichloroethane ND ug/L 12/01/23 02:47 71-55-61.0 1 1,1,2-Trichloroethane ND ug/L 12/01/23 02:47 79-00-51.0 1 Trichloroethene ND ug/L 12/01/23 02:47 79-01-61.0 1 Trichlorofluoromethane ND ug/L 12/01/23 02:47 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 12/01/23 02:47 96-18-41.0 1 Vinyl acetate ND ug/L 12/01/23 02:47 108-05-42.0 1 Vinyl chloride ND ug/L 12/01/23 02:47 75-01-41.0 1 Xylene (Total)ND ug/L 12/01/23 02:47 1330-20-71.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Sample: TRIP BLANK 2 Lab ID: 92700186010 Collected: 11/21/23 00:00 Received: 11/22/23 12:18 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit Analytical Method: EPA 8260D Pace Analytical Services - Charlotte 8260D MSV Low Level Landfill m&p-Xylene ND ug/L 12/01/23 02:47 179601-23-12.0 1 o-Xylene ND ug/L 12/01/23 02:47 95-47-61.0 1 Surrogates 4-Bromofluorobenzene (S)94 %12/01/23 02:47 460-00-470-130 1 1,2-Dichloroethane-d4 (S)86 %12/01/23 02:47 17060-07-070-130 1 Toluene-d8 (S)101 %12/01/23 02:47 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815335 EPA 7470A EPA 7470A 7470 Mercury Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220816 Associated Lab Samples: 92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008 Matrix: Water Analyzed Mercury ug/L ND 0.20 11/26/23 16:11 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220817LABORATORY CONTROL SAMPLE: LCSSpike Mercury ug/L 2.32.5 93 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220818MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92699907002 4220819 MSD Result MSD % Rec RPD MSDMS Spike Conc. Mercury ug/L 2.5 96 75-12593 32.5ND 2.4 2.3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815698 EPA 3010A EPA 6010D 6010 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4222044 Associated Lab Samples: 92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008 Matrix: Water Analyzed Antimony ug/L ND 5.0 12/04/23 21:22 Arsenic ug/L ND 10.0 12/04/23 21:22 Barium ug/L ND 5.0 12/05/23 20:09 Beryllium ug/L ND 1.0 12/04/23 21:22 Cadmium ug/L ND 1.0 12/04/23 21:22 Chromium ug/L ND 5.0 12/04/23 21:22 Cobalt ug/L ND 5.0 12/04/23 21:22 Copper ug/L ND 5.0 12/04/23 21:22 Lead ug/L ND 5.0 12/04/23 21:22 Nickel ug/L ND 5.0 12/04/23 21:22 Selenium ug/L ND 10.0 12/04/23 21:22 Silver ug/L ND 5.0 12/04/23 21:22 Thallium ug/L ND 10.0 12/04/23 21:22 Vanadium ug/L ND 5.0 12/04/23 21:22 Zinc ug/L ND 10.0 12/04/23 21:22 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4222045LABORATORY CONTROL SAMPLE: LCSSpike Antimony ug/L 520500 104 80-120 Arsenic ug/L 525500 105 80-120 Barium ug/L 508500 102 80-120 Beryllium ug/L 515500 103 80-120 Cadmium ug/L 524500 105 80-120 Chromium ug/L 519500 104 80-120 Cobalt ug/L 516500 103 80-120 Copper ug/L 518500 104 80-120 Lead ug/L 518500 104 80-120 Nickel ug/L 516500 103 80-120 Selenium ug/L 510500 102 80-120 Silver ug/L 260250 104 80-120 Thallium ug/L 525500 105 80-120 Vanadium ug/L 515500 103 80-120 Zinc ug/L 512500 102 80-120 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4222046MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700200001 4222047 MSD Result MSD % Rec RPD MSDMS Spike Conc. Antimony ug/L 500 106 75-125107 2500ND528 536 Arsenic ug/L 500 108 75-125109 1500ND540 546 Barium ug/L 500 96 75-12599 350019.1 498 514 Beryllium ug/L 500 105 75-125106 1500ND526 532 Cadmium ug/L 500 105 75-125106 0500ND528 529 Chromium ug/L 500 103 75-125104 1500ND515 520 Cobalt ug/L 500 102 75-125103 1500ND512 517 Copper ug/L 500 102 75-125105 2500ND516 527 Lead ug/L 500 103 75-125103 0500ND514 516 Nickel ug/L 500 102 75-125103 1500ND512 516 Selenium ug/L 500 106 75-125108 2500ND533 543 Silver ug/L 250 103 75-125105 2250ND258 263 Thallium ug/L 500 102 75-125103 1500ND509 516 Vanadium ug/L 500 103 75-125104 1500ND517 522 Zinc ug/L 500 105 75-125104 050050.2 573 572 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 816405 EPA 8260D EPA 8260D 8260D MSV Low Level Landfill Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008, 92700186009, 92700186010 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225726 Associated Lab Samples: 92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008, 92700186009, 92700186010 Matrix: Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 12/01/23 01:51 1,1,1-Trichloroethane ug/L ND 1.0 12/01/23 01:51 1,1,2,2-Tetrachloroethane ug/L ND 1.0 12/01/23 01:51 1,1,2-Trichloroethane ug/L ND 1.0 12/01/23 01:51 1,1-Dichloroethane ug/L ND 1.0 12/01/23 01:51 1,1-Dichloroethene ug/L ND 1.0 12/01/23 01:51 1,2,3-Trichloropropane ug/L ND 1.0 12/01/23 01:51 1,2-Dichlorobenzene ug/L ND 1.0 12/01/23 01:51 1,2-Dichloroethane ug/L ND 1.0 12/01/23 01:51 1,2-Dichloropropane ug/L ND 1.0 12/01/23 01:51 1,4-Dichlorobenzene ug/L ND 1.0 12/01/23 01:51 2-Butanone (MEK)ug/L ND 5.0 12/01/23 01:51 2-Hexanone ug/L ND 5.0 12/01/23 01:51 4-Methyl-2-pentanone (MIBK)ug/L ND 5.0 12/01/23 01:51 Acetone ug/L ND 25.0 12/01/23 01:51 Acrylonitrile ug/L ND 10.0 12/01/23 01:51 Benzene ug/L ND 1.0 12/01/23 01:51 Bromochloromethane ug/L ND 1.0 12/01/23 01:51 Bromodichloromethane ug/L ND 1.0 12/01/23 01:51 Bromoform ug/L ND 1.0 12/01/23 01:51 Bromomethane ug/L ND 2.0 IH12/01/23 01:51 Carbon disulfide ug/L ND 2.0 12/01/23 01:51 Carbon tetrachloride ug/L ND 1.0 12/01/23 01:51 Chlorobenzene ug/L ND 1.0 12/01/23 01:51 Chloroethane ug/L ND 1.0 12/01/23 01:51 Chloroform ug/L ND 1.0 12/01/23 01:51 Chloromethane ug/L ND 1.0 12/01/23 01:51 cis-1,2-Dichloroethene ug/L ND 1.0 12/01/23 01:51 cis-1,3-Dichloropropene ug/L ND 1.0 12/01/23 01:51 Dibromochloromethane ug/L ND 1.0 12/01/23 01:51 Dibromomethane ug/L ND 1.0 12/01/23 01:51 Ethylbenzene ug/L ND 1.0 12/01/23 01:51 Iodomethane ug/L ND 20.0 12/01/23 01:51 m&p-Xylene ug/L ND 2.0 12/01/23 01:51 Methylene Chloride ug/L ND 5.0 12/01/23 01:51 Naphthalene ug/L ND 1.0 12/01/23 01:51 o-Xylene ug/L ND 1.0 12/01/23 01:51 Styrene ug/L ND 1.0 12/01/23 01:51 Tetrachloroethene ug/L ND 1.0 12/01/23 01:51 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 28 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4225726 Associated Lab Samples: 92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008, 92700186009, 92700186010 Matrix: Water Analyzed Toluene ug/L ND 1.0 12/01/23 01:51 trans-1,2-Dichloroethene ug/L ND 1.0 12/01/23 01:51 trans-1,3-Dichloropropene ug/L ND 1.0 12/01/23 01:51 trans-1,4-Dichloro-2-butene ug/L ND 1.0 12/01/23 01:51 Trichloroethene ug/L ND 1.0 12/01/23 01:51 Trichlorofluoromethane ug/L ND 1.0 12/01/23 01:51 Vinyl acetate ug/L ND 2.0 12/01/23 01:51 Vinyl chloride ug/L ND 1.0 12/01/23 01:51 Xylene (Total)ug/L ND 1.0 12/01/23 01:51 1,2-Dichloroethane-d4 (S)%91 70-130 12/01/23 01:51 4-Bromofluorobenzene (S)%95 70-130 12/01/23 01:51 Toluene-d8 (S)%98 70-130 12/01/23 01:51 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225727LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 19.720 99 70-130 1,1,1-Trichloroethane ug/L 20.020 100 70-130 1,1,2,2-Tetrachloroethane ug/L 18.720 94 70-130 1,1,2-Trichloroethane ug/L 18.620 93 70-130 1,1-Dichloroethane ug/L 18.420 92 70-130 1,1-Dichloroethene ug/L 20.620 103 69-131 1,2,3-Trichloropropane ug/L 17.420 87 70-130 1,2-Dichlorobenzene ug/L 19.920 99 70-130 1,2-Dichloroethane ug/L 17.120 85 70-130 1,2-Dichloropropane ug/L 18.920 95 70-130 1,4-Dichlorobenzene ug/L 19.920 99 70-130 2-Butanone (MEK)ug/L 33.340 83 67-133 2-Hexanone ug/L 33.340 83 70-133 4-Methyl-2-pentanone (MIBK)ug/L 34.440 86 70-130 Acetone ug/L 31.340 78 67-130 Acrylonitrile ug/L 86.1100 86 70-130 Benzene ug/L 19.720 98 70-130 Bromochloromethane ug/L 18.120 90 70-130 Bromodichloromethane ug/L 18.520 92 70-130 Bromoform ug/L 18.920 94 70-133 Bromomethane ug/L 21.3 IH20107 41-148 Carbon disulfide ug/L 21.220 106 70-131 Carbon tetrachloride ug/L 21.620 108 70-130 Chlorobenzene ug/L 19.820 99 70-130 Chloroethane ug/L 21.520 108 41-157 Chloroform ug/L 17.120 86 70-130 Chloromethane ug/L 22.920 114 59-141 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 29 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4225727LABORATORY CONTROL SAMPLE: LCSSpike cis-1,2-Dichloroethene ug/L 18.520 92 70-130 cis-1,3-Dichloropropene ug/L 18.120 90 70-130 Dibromochloromethane ug/L 19.220 96 70-130 Dibromomethane ug/L 18.920 94 70-130 Ethylbenzene ug/L 19.720 98 70-130 Iodomethane ug/L 38.540 96 57-140 m&p-Xylene ug/L 39.440 99 70-130 Methylene Chloride ug/L 18.520 92 62-130 Naphthalene ug/L 16.920 84 70-135 o-Xylene ug/L 19.420 97 70-130 Styrene ug/L 19.820 99 70-130 Tetrachloroethene ug/L 20.820 104 70-130 Toluene ug/L 19.620 98 70-130 trans-1,2-Dichloroethene ug/L 19.020 95 70-130 trans-1,3-Dichloropropene ug/L 18.620 93 70-130 trans-1,4-Dichloro-2-butene ug/L 17.120 85 57-149 Trichloroethene ug/L 20.620 103 70-130 Trichlorofluoromethane ug/L 23.620 118 57-130 Vinyl acetate ug/L 34.240 85 70-141 Vinyl chloride ug/L 22.020 110 66-140 Xylene (Total)ug/L 58.860 98 70-130 1,2-Dichloroethane-d4 (S)%88 70-130 4-Bromofluorobenzene (S)%96 70-130 Toluene-d8 (S)%99 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4225728MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700200001 4225729 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 116 70-146125 820ND23.1 25.0 1,1,1-Trichloroethane ug/L 20 112 70-150121 820ND22.4 24.2 1,1,2,2-Tetrachloroethane ug/L 20 102 66-144114 1120ND20.5 22.7 1,1,2-Trichloroethane ug/L 20 107 70-142115 820ND21.3 23.0 1,1-Dichloroethane ug/L 20 101 68-150113 1120ND20.3 22.5 1,1-Dichloroethene ug/L 20 112 64-162125 1120ND22.4 25.0 1,2,3-Trichloropropane ug/L 20 93 66-144108 1520ND18.6 21.5 1,2-Dichlorobenzene ug/L 20 110 70-142121 1020ND22.0 24.2 1,2-Dichloroethane ug/L 20 92 68-145102 1020ND18.3 20.3 1,2-Dichloropropane ug/L 20 106 70-144118 1120ND21.2 23.6 1,4-Dichlorobenzene ug/L 20 108 70-140120 1020ND21.7 24.1 2-Butanone (MEK)ug/L 40 90 57-156105 1640ND35.9 42.1 2-Hexanone ug/L 40 94 62-153105 1140ND37.7 42.1 4-Methyl-2-pentanone (MIBK) ug/L 40 97 65-144108 1140ND38.7 43.1 Acetone ug/L 40 79 49-16292 1540ND31.5 36.8 Acrylonitrile ug/L 100 96 59-155107 11100ND95.8 107 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 30 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4225728MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700200001 4225729 MSD Result MSD % Rec RPD MSDMS Spike Conc. Benzene ug/L 20 110 68-144121 1020ND21.9 24.2 Bromochloromethane ug/L 20 104 70-148112 820ND20.8 22.5 Bromodichloromethane ug/L 20 103 70-141112 820ND20.6 22.4 Bromoform ug/L 20 109 59-144119 920ND21.8 23.7 Bromomethane ug/L IH2013823-190138 120ND27.5 27.7 Carbon disulfide ug/L 20 116 64-160126 820ND23.2 25.3 Carbon tetrachloride ug/L 20 127 70-147138 820ND25.5 27.6 Chlorobenzene ug/L 20 112 70-143122 820ND22.4 24.4 Chloroethane ug/L 20 116 55-190129 1020ND23.3 25.9 Chloroform ug/L 20 103 67-148114 1020ND20.5 22.7 Chloromethane ug/L 20 128 38-180139 820ND25.6 27.8 cis-1,2-Dichloroethene ug/L 20 100 67-151112 1120ND20.0 22.3 cis-1,3-Dichloropropene ug/L 20 101 70-142111 1020ND20.3 22.3 Dibromochloromethane ug/L 20 106 68-140116 1020ND21.2 23.3 Dibromomethane ug/L 20 115 70-142125 820ND23.1 24.9 Ethylbenzene ug/L 20 111 70-145121 820ND22.2 24.1 Iodomethane ug/L 40 103 37-160115 1140ND41.2 46.0 m&p-Xylene ug/L 40 111 70-148121 840ND44.6 48.3 Methylene Chloride ug/L 20 95 54-149105 1020ND19.0 20.9 Naphthalene ug/L 20 98 62-154122 2220ND19.6 24.4 o-Xylene ug/L 20 112 70-145122 920ND22.4 24.4 Styrene ug/L 20 111 70-147120 820ND22.3 24.0 Tetrachloroethene ug/L 20 124 70-145134 820ND24.9 26.9 Toluene ug/L 20 108 65-146119 920ND21.7 23.8 trans-1,2-Dichloroethene ug/L 20 103 69-155114 1020ND20.5 22.8 trans-1,3-Dichloropropene ug/L 20 105 70-142114 820ND20.9 22.7 trans-1,4-Dichloro-2-butene ug/L 20 89 39-149102 1420ND17.8 20.5 Trichloroethene ug/L 20 119 70-152130 920ND23.7 26.1 Trichlorofluoromethane ug/L 20 133 60-158146 1020ND26.6 29.3 Vinyl acetate ug/L 40 94 56-157104 1140ND37.5 41.7 Vinyl chloride ug/L 20 125 51-178136 920ND25.0 27.3 Xylene (Total)ug/L 60 112 70-146121 860ND66.9 72.7 1,2-Dichloroethane-d4 (S)%82 70-13082 4-Bromofluorobenzene (S)%97 70-13096 Toluene-d8 (S)%97 70-13097 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 31 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815209 EPA 8260D Mod. EPA 8260D Mod. 8260D MSV SIM Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92700186001, 92700186002, 92700186005, 92700186006, 92700186007, 92700186008 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220392 Associated Lab Samples:92700186001, 92700186002, 92700186005, 92700186006, 92700186007, 92700186008 Matrix: Water Analyzed 1,4-Dioxane (p-Dioxane)ug/L ND 2.0 11/23/23 06:27 1,2-Dichloroethane-d4 (S)%88 67-130 11/23/23 06:27 Toluene-d8 (S)%91 70-130 11/23/23 06:27 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220393LABORATORY CONTROL SAMPLE: LCSSpike 1,4-Dioxane (p-Dioxane)ug/L 18.720 94 70-130 1,2-Dichloroethane-d4 (S)%88 67-130 Toluene-d8 (S)%91 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220394MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700200001 4220395 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 89 55-13791 220ND18.2 18.5 1,2-Dichloroethane-d4 (S)%88 67-13088 Toluene-d8 (S)%91 70-13092 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 32 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815360 EPA 8260D Mod. EPA 8260D Mod. 8260D MSV SIM Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92700186003, 92700186004 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220870 Associated Lab Samples:92700186003, 92700186004 Matrix: Water Analyzed 1,4-Dioxane (p-Dioxane)ug/L ND 2.0 11/28/23 14:20 1,2-Dichloroethane-d4 (S)%97 67-130 11/28/23 14:20 Toluene-d8 (S)%101 70-130 11/28/23 14:20 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220871LABORATORY CONTROL SAMPLE: LCSSpike 1,4-Dioxane (p-Dioxane)ug/L 23.020 115 70-130 1,2-Dichloroethane-d4 (S)%98 67-130 Toluene-d8 (S)%101 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220872MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700242002 4220873 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,4-Dioxane (p-Dioxane)ug/L 20 92 55-13790 320ND18.7 18.2 1,2-Dichloroethane-d4 (S)%100 67-130100 Toluene-d8 (S)%104 70-130103 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 33 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 815251 SM 4500-S2D-2011 SM 4500-S2D-2011 4500S2D Sulfide Water Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4220627 Associated Lab Samples: 92700186001, 92700186002, 92700186003, 92700186004, 92700186005, 92700186006, 92700186007, 92700186008 Matrix: Water Analyzed Sulfide mg/L ND 0.10 11/23/23 04:26 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4220628LABORATORY CONTROL SAMPLE: LCSSpike Sulfide mg/L 0.480.5 97 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220629MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700186001 4220630 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 102 80-120102 00.5ND 0.51 0.51 Parameter Units MS Result % Rec Limits Qual% RecConc. 4220631MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92700191003 4220632 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfide mg/L 0.5 103 80-120107 40.5ND 0.51 0.53 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 34 of 40 #=QL# QUALIFIERS Pace Project No.: Project: 92700186 OCSWM FALL-NORTH DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS This analyte exceeded secondary source verification criteria high for the initial calibration. The reported results should be considered an estimated value.IH REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 35 of 40 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92700186 OCSWM FALL-NORTH Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92700186001 815698 8158316801-MW06R EPA 3010A EPA 6010D 92700186002 815698 8158316801-MW07R EPA 3010A EPA 6010D 92700186003 815698 8158316801-MW14A EPA 3010A EPA 6010D 92700186004 815698 8158316801-MW14B EPA 3010A EPA 6010D 92700186005 815698 8158316801-MW15 EPA 3010A EPA 6010D 92700186006 815698 8158316801-MW16 EPA 3010A EPA 6010D 92700186007 815698 8158316801-MW17 EPA 3010A EPA 6010D 92700186008 815698 8158316801-MW22 EPA 3010A EPA 6010D 92700186001 815335 8153536801-MW06R EPA 7470A EPA 7470A 92700186002 815335 8153536801-MW07R EPA 7470A EPA 7470A 92700186003 815335 8153536801-MW14A EPA 7470A EPA 7470A 92700186004 815335 8153536801-MW14B EPA 7470A EPA 7470A 92700186005 815335 8153536801-MW15 EPA 7470A EPA 7470A 92700186006 815335 8153536801-MW16 EPA 7470A EPA 7470A 92700186007 815335 8153536801-MW17 EPA 7470A EPA 7470A 92700186008 815335 8153536801-MW22 EPA 7470A EPA 7470A 92700186001 8164056801-MW06R EPA 8260D 92700186002 8164056801-MW07R EPA 8260D 92700186003 8164056801-MW14A EPA 8260D 92700186004 8164056801-MW14B EPA 8260D 92700186005 8164056801-MW15 EPA 8260D 92700186006 8164056801-MW16 EPA 8260D 92700186007 8164056801-MW17 EPA 8260D 92700186008 8164056801-MW22 EPA 8260D 92700186009 816405TRIP BLANK 1 EPA 8260D 92700186010 816405TRIP BLANK 2 EPA 8260D 92700186001 8152096801-MW06R EPA 8260D Mod. 92700186002 8152096801-MW07R EPA 8260D Mod. 92700186003 8153606801-MW14A EPA 8260D Mod. 92700186004 8153606801-MW14B EPA 8260D Mod. 92700186005 8152096801-MW15 EPA 8260D Mod. 92700186006 8152096801-MW16 EPA 8260D Mod. 92700186007 8152096801-MW17 EPA 8260D Mod. 92700186008 8152096801-MW22 EPA 8260D Mod. 92700186001 8152516801-MW06R SM 4500-S2D-2011 92700186002 8152516801-MW07R SM 4500-S2D-2011 92700186003 8152516801-MW14A SM 4500-S2D-2011 92700186004 8152516801-MW14B SM 4500-S2D-2011 92700186005 8152516801-MW15 SM 4500-S2D-2011 92700186006 8152516801-MW16 SM 4500-S2D-2011 92700186007 8152516801-MW17 SM 4500-S2D-2011 92700186008 8152516801-MW22 SM 4500-S2D-2011 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 36 of 40 Page 37 of 40 Page 38 of 40 Page 39 of 40 Page 40 of 40 Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 8: Field Data Groundwater Monitoring Program February 2024 Results of Sampling and Analysis Attachment 8 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 8 FIELD DATA: NORTH FACILITY Groundwater samples were obtained in accordance with the groundwater monitoring requirements of the 15A North Carolina Administrative Code (NCAC) 13B and the Permit. Detailed sampling procedures are documented on a series of groundwater sampling forms (presented at the end of this ATTACHMENT). 1.1 Chronology On November 20 through November 22, 2023 (sampling event 60), TRC personnel obtained groundwater samples from groundwater monitoring wells associated with the Orange County Solid Waste Management North Facility (north side of Eubanks Road). During the subject sampling event, samples were obtained for the following chemical analyses: • analyze samples obtained from fourteen compliance wells (6801-MW04, 6801-MW06R, 6801-MW07R, 6801-MW14A, 6801-MW14B, 6801-MW15, 6801-MW16, 6801-MW17, 6801-MW20, 6801-MW21S, 6801-MW21D, 6801-MW21D2, 6801-MW22, 6801-MW301) for the constituents listed in 40 CFR Part 258 Appendix I (15A NCAC 13B .1600; plus 1,4-Dioxane), plus those constituents listed in Appendix II that have been previously and reliably detected at this facility (mercury, naphthalene, sulfide). • analyze samples obtained from upgradient monitoring well 6801-MW110S for the constituents listed in Appendix I (plus 1,4-dioxane) and the constituents required by regulations for monitoring of C&D landfills (manganese, iron, mercury, chloride, sulfate, tetrahydrofuran, total dissolved solids, alkalinity) (well 6801-MW110S is associated with the monitoring programs for North sanitary landfill, the South sanitary landfill, and the active C&D landfill). • analyze samples obtained from upgradient monitoring well 6801-MW110D for analysis of total arsenic. • analyze samples obtained from two “nature and extent” monitoring wells (6801-MW23, 6801-MW24), for the constituents listed in 40 CFR Part 258 Appendix I (15A NCAC 13B .1600), plus those constituents listed in Appendix II that have been previously and reliably detected at this facility (mercury, naphthalene, sulfide). • analyze samples obtained from nine monitoring wells (6801-MW04, 6801-MW21S, 6801-MW21D, 6801-MW21D2, 6801-MW23, 6801-MW24, 6801-MW110S, 6801-MW110D and 6801-MW301) for hexavalent chromium. • analyze samples of surface water (SW-2) obtained from one location along Old Field Creek, for the constituents listed in 40 CFR Part 258 Appendix I (15A NCAC 13B .1600), plus those constituents listed in Appendix II that have been previously and reliably detected at this facility (mercury, naphthalene, sulfide). SW-1 location was dry during the November 2023 sampling event. • analyze additional samples obtained from well 6801-MW04 for constituents required by regulations for monitoring of C&D landfills (manganese, iron, chloride, sulfate, Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 8 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 total dissolved solids, alkalinity) (well 6801-MW04 is associated with the monitoring programs for North sanitary landfill, the South sanitary landfill, and the active C&D landfill). • analyze additional samples obtained from well 6801-MW04 for quality control parameters. • analyze four trip blanks for quality control parameters. 1.2 Well Inspection Prior to sampling groundwater, TRC personnel assessed the overall condition of each groundwater monitoring well (including the surface completion). According to documentation provided by TRC personnel, all wells were observed to be in generally good condition. 1.3 Static Water Levels Using a graduated electronic water level indicator, field personnel measured static water levels in each well prior to purging. All measurements were recorded to the nearest 0.01 foot (relative to the top of the PVC well pipe). A history of static water elevations is presented in ATTACHMENT 3. 1.4 Purging TRC personnel purged all permitted wells using dedicated, submersible bladder pumps driven by an electric-powered air compressor and an associated control unit. Wells were purged using a performance-based (“low-flow”) criteria presented in the document Guidelines for Groundwater, Soil, and Surface Water Sampling (NCDENR - SWS; April, 2008). Field purge and sample logs provided by TRC are presented at the end of this ATTACHMENT. 1.5 Groundwater Stability The performance-based purging method involves purging groundwater from a monitoring well at a sufficiently slow rate so as not to significantly disturb the water column. During the purging process, several water quality parameters are periodically measured until three successive readings are generally consistent (within approximately 10%):  acidity (pH)  specific conductance  water temperature  dissolved oxygen  turbidity  oxygen-reduction potential (ORP) Additional purging criteria are presented in the Guidelines document discussed above. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 8 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 During the subject sampling event, the monitoring wells were purged until several consistent field parameter readings were recorded. These parameters were measured in order to help ensure that representative groundwater samples were obtained. Groundwater samples were obtained immediately after the physical parameters had stabilized. Stability is defined in the Groundwater Monitoring Plan as a deviation of less than 10% for three consecutive readings. Readings recorded for each well are presented at the end of this ATTACHMENT. Note. When water levels are low in a well, or when the screened portion of the aquifer is characterized by low hydraulic conductivity, the well may be purged to dryness. In such cases, field personnel will allow time for groundwater levels to equilibrate and then restart the sampling process from the point at which it was interrupted. If the well again purges to dryness, the technician will obtain samples as the well recharges. In such cases, the groundwater samples are deemed “representative” even if the usual stable readings cannot be obtained. 1.6 Well Sampling Groundwater samples were obtained immediately after the water quality parameters had stabilized. The QA/QC analyses were performed on the samples obtained from well 6801-MW04 including a Matrix Spike and Matrix Spike Duplicate. 1.7 Well Sampling Order On November 20 through November 22, 2023 (sampling event 60), TRC personnel first sampled upgradient wells, then sampled wells in the order indicated by the times posted on the field records presented at the end of this ATTACHMENT. 1.8 Preservation At the laboratory, all sample containers were prepared with preservative by Pace if required by the method in SW-846. All samples were placed beneath ice in coolers immediately after the samples were obtained. 1.9 Sample Transport Immediately after the samples were obtained, they were placed beneath ice in insulated containers for transportation to the laboratory. All samples obtained from November 20 through November 22, 2023 (sampling event 60 were hand-delivered to Pace on the day they were collected. Upon arrival at the laboratory, all temperatures inside of the insulated containers were measured and found to lie within acceptable limits (< 4°C). All samples were placed in a refrigerator upon arrival and held at approximately 4°C until the time at which they were analyzed. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 8 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 We present additional information concerning each monitoring well at the end of this ATTACHMENT. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 9: Statistical Analyses Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 9 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 9 STATISTICAL ANALYSES Statistical analyses were previously performed in order to establish facility background concentrations for all Appendix I constituents. A report was submitted to NCDENR in October, 1998. During 2007, NCDENR promulgated Solid Waste Section Limits (SWSLs) for listed organic and inorganic constituents, and for most general chemistry parameters. The SWSL values were established in lieu of laboratory Practical Quantitation Limits (PQLs) and are intended to function as the laboratory reporting limits. During 2018, NCDEQ discontinued the use of SWSLs, and facilities were advised to choose EPA approved analytical methods sufficiently sensitive to quantify the presence of a pollutant at or below applicable standards. Previously determined facility background values have been replaced with their respective Method Reporting Limit (MRL), where appropriate. Facility background concentrations (denoted as “FBAC” values) are shown on a series of tables summarizing the history of groundwater chemistry at the North landfill (ATTACHMENT 5 and ATTACHMENT 6). Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 10: Quality Control Assessment Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 ATTACHMENT 10 QUALITY CONTROL ASSESSMENT 1.0 Field Quality Assurance / Quality Control Rigorous sampling protocols were employed during groundwater sampling to help ensure that each sample is representative of groundwater in the aquifer. Any non-dedicated equipment used to purge and sample monitoring wells was decontaminated before and after sampling each well. Trip blanks were analyzed to help validate the observed concentrations of specific constituents. The concentration of each constituent observed in groundwater was compared to the concentration observed in each blank in accordance with the following rules: • Regarding common organic laboratory contaminants (acetone, 2-butanone, methylene chloride) and common phthalate contaminants, if the concentration in groundwater is less than ten times (10x) the concentration in the blank, then we conclude that the constituent in the groundwater sample may be attributed to cross-contamination. • Regarding organic contaminants that are not commonly used in the laboratory and inorganic contaminants in general, if the concentration in groundwater is less than five times (5x) the concentration in the blank, then we conclude that the constituent in the groundwater sample may be attributed to cross-contamination. 1.1 Deviations from the Plan All sampling techniques met the specifications set forth in the Groundwater Monitoring Plan. 1.2 Trip Blanks Trip blanks were prepared by the laboratory and transported by field personnel to each monitoring well location. Trip blanks remained in the insulated container, and the lids of the containers were never removed from the time the vehicle left the laboratory until the time field personnel delivered the samples to the laboratory. Trip blanks were analyzed for the constituents listed in 40 CFR Part 258 Appendix I (15A NCAC 13B .1600) that are typically analyzed using EPA Method 8260D. The laboratory did not detect any VOC constituents in the Trip Blanks submitted. 2.0 Laboratory Quality Assurance / Quality Control Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 A limited QA/QC review was performed on the data provided by Pace Laboratories. In general, the Environmental Protection Agency's (EPA) Contract Laboratory Program (CLP) guidelines for data validation in Region III were followed; however, SW-846 control limits (latest promulgated edition) were used for QA/QC requirements. Specifically, laboratory blanks were analyzed to help validate the observed concentrations of specific constituents. The concentration of each constituent observed in groundwater was compared to the concentration observed in each blank in accordance with the following rules: • Regarding common organic laboratory contaminants (acetone, 2-butanone, methylene chloride) and common phthalate contaminants, if the concentration in groundwater is less than ten times (10x) the concentration in the blank, then we conclude that the constituent in the groundwater sample may be attributed to cross-contamination. • Regarding organic contaminants that are not commonly used in the laboratory and inorganic contaminants in general, if the concentration in groundwater is less than five times (5x) the concentration in the blank, then we conclude that the constituent in the groundwater sample may be attributed to cross-contamination. 2.1 EPA Method 8260D (volatile constituents) As part of the QA/QC review, the following were examined: • technical holding times and preservation requirements • blank analysis • transcription/confirmation errors After reviewing the quality control data provided by Pace Laboratories, the reviewer determined that the dataset met all requirements of the criteria listed above, as specified by SW-846 for the referenced method. 2.2 EPA Method 6010D (ICP - metals) As part of the QA/QC review, the following were examined: • technical holding times and preservation requirements • blank analysis • transcription/confirmation errors After reviewing the quality control data provided by Pace Laboratories, the reviewer determined that the dataset met all requirements of the criteria listed above, as specified by SW-846 for the referenced method. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 2.3 EPA Method 6020B (ICP - metals) As part of the QA/QC review, the following were examined: • technical holding times and preservation requirements • blank analysis • transcription/confirmation errors After reviewing the quality control data provided by Pace Laboratories, the reviewer determined that the dataset met all requirements of the criteria listed above, as specified by SW-846 for the referenced method. 2.4 EPA Method 7470A (total mercury) As part of the QA/QC review, the following were examined: • technical holding times and preservation requirements • blank analysis • transcription/confirmation errors After reviewing the quality control data provided by Pace Laboratories, the reviewer determined that the dataset met all requirements of the criteria listed above, as specified by SW-846 for the referenced method. 2.5 EPA Method SM 4500S2 D-2011 (sulfide) As part of the QA/QC review, the following were examined: • technical holding times and preservation requirements • blank analysis • transcription/confirmation errors After reviewing the quality control data provided by Pace Laboratories, the reviewer determined that the dataset met all requirements of the criteria listed above, as specified by SW-846 for the referenced method. Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 [QUALITY CONTROL DOCUMENTATION, AS PROVIDED BY THE LABORATORY, IS PRESENTED IN ATTACHMENT 7, ALONG WITH THE ASSOCIATED CERTIFICATE-OF-ANALYSIS] Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 60: 11.20.23 to 11.22.23 OCSWM North Facility, Permit No. 68-01 Attachment 11: Correspondence North Carolina Department of Environment and Natural Resources Dexter R. Matthews, Director Division of Waste Management Beverly Eaves Perdue, Governor Dee Freeman, Secretary 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: 919-508-8400 \ FAX: 919-733-4810 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper September 26, 2011 Mr. Farouk Banna, P.E. Landfill Engineer Orange County Solid Waste Management P.O. Box 17177 Chapel Hill, NC 27516-7177 Re: Inorganic Constituents Alternate Source Demonstration Orange County Landfill-North Facility, Permit #68-01 Dear Mr. Banna, The North Carolina Solid Waste Section (Section) has reviewed the Alternate Source Demonstration: Inorganic Constituents for the Orange County Landfill-North Facility submitted on behalf of Orange County by Draper Aden Associates (DAA). Total arsenic, total cobalt, total lead, and total selenium were reported at concentrations above their respective 2L Standards in groundwater samples collected during previous monitoring events. In response, an alternate source demonstration was submitted in an effort to prove that the landfill is not the cause of the inorganic exceedances. DAA collected ten soil samples at discrete intervals from five soil borings located adjacent to MW-4, MW-5, MW-14A, MW-15, and MW-20. Total arsenic, total cobalt, total lead, and total selenium were detected in all soil samples and DAA subsequently calculated the maximum leachable concentration for each constituent to determine if native soils could impact groundwater quality. The calculation results indicated that native soils are capable of causing elevated total arsenic, total cobalt, total lead, and total selenium concentrations in groundwater. Based on results of the maximum leachable concentration calculations, the Section approves the alternate source demonstration. Please contact me at 919-508-8516 or by email at ervin.lane@ncdenr.gov if you have any questions or concerns regarding this correspondence. Thank you for your cooperation in this matter. Sincerely, Ervin Lane Compliance Hydrogeologist Solid Waste Section cc: Joel Daniel, P.G., Draper Aden Associates Mark Poindexter, Field Operations Branch Head Dennis Shackelford, Eastern District Supervisor John Patrone, Environmental Senior Specialist Solid Waste Central Files North Carolina Department of Environment and Natural Resources Dexter Matthews, Director Division of Waste Management Beverly Eaves Perdue, Governor Dee Freeman, Secretary 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: 919-508-8400 \ FAX: 919-715-4061 \ Internet: www.wastenotnc.org An Equal Opportunity / Affirmative Action Employer - 50 % Recycled \ 10 % Post Consumer Paper March 30, 2011 Mr. Paul Spire Orange County Solid Waste Management P.O. Box 17177 Chapel Hill, NC 27516-7177 Re: Cobalt Alternate Source Demonstration Orange County Regional Landfill (South Facility), Permit #68-01 Dear Mr. Spire, The North Carolina Solid Waste Section (Section) has reviewed the Orange County Landfill-South Facility Alternate Source Demonstration - Cobalt submitted on behalf of Orange County by Draper Aden Associates (DAA). Cobalt was reported at a concentration above the 2L Standard in the groundwater samples collected from MW-105 and MW-112 during the November 2010 groundwater monitoring event. In response, an alternate source demonstration was submitted in an effort to prove that the landfill is not the cause of the cobalt exceedance. DAA also collected three soil samples from each of the geoprobe borings located adjacent to MW-105, along the west side of the facility, and from the third soil sample collected during the construction of MW-112. Cobalt was detected in all nine soil samples and DAA subsequently calculated the maximum leachable concentration to determine if native soils could impact groundwater quality. The calculation results indicated that native soils are capable of causing elevated cobalt concentrations in groundwater. Based on results of the maximum leachable concentration calculations, the Section approves the alternate source demonstration. Please contact me at 919-508-8516 or by email at ervin.lane@ncdenr.gov if you have any questions or concerns regarding this correspondence. Thank you for your cooperation in this matter. Sincerely, Ervin Lane Hydrogeologist Environmental Compliance Solid Waste Section 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: 919-508-8400 \ FAX: 919-715-4061 \ Internet: www.wastenotnc.org An Equal Opportunity / Affirmative Action Employer - 50 % Recycled \ 10 % Post Consumer Paper cc: Joel Daniel, P.G., Draper Aden Associates Mark Poindexter, Field Operations Branch Head Jason Watkins, Central District Supervisor Chris Marriot, Environmental Senior Specialist Solid Waste Central Files North Carolina Department of Environment and Natural Resources Dexter Matthews, Director Division of Waste Management Beverly Eaves Perdue, Governor Dee Freeman, Secretary 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: 919-508-8400 \ FAX: 919-715-4061 \ Internet: www.wastenotnc.org An Equal Opportunity / Affirmative Action Employer - 50 % Recycled \ 10 % Post Consumer Paper May 26, 2010 Mr. Mike Meagher Orange County Solid Waste Management P.O. Box 17177 Chapel Hill, NC 27516-7177 Re: Alternate Source Demonstration Orange County Regional Landfill (South Facility), Permit #68-01 Dear Mr. Meagher, The North Carolina Solid Waste Section (Section) has reviewed the Orange County Landfill-South Facility Alternate Source Demonstration - Vandium submitted on behalf of Orange County by Draper Aden Associates (DAA). Total vanadium was reported at a concentration above the 2L Standard in the groundwater sample collected from MW-101 during the October 2009 monitoring event and in addition, during a confirmation sampling event in November 2009. In response, an alternate source demonstration was submitted in an effort to prove that the landfill is not the cause of the vanadium exceedance. DAA obtained both filtered and unfiltered groundwater samples from MW-101 in December 2009 for analysis of total and dissolved vanadium. Laboratory anaylitcal results indicated the concentrations of total vanadium exceeded the 2L standard and dissolved vanadium did not exceed its Solid Waste Section Limit. DAA also collected three soil samples at discrete intervals from an upgradient boring and four soil samples at discrete intervals from a boring adjacent to MW-101. Vandium was detected in all soil samples and DAA subsequently calculated the maximum leachable concentration to determine if native soils could impact groundwater quality. The calculation results indicated that native soils are capable of causing elevated vanadium concentrations in groundwater. Based on results of the filtered and unfiltered groundwater samples and the maximum leachable concentration calculations, the Section approves the alternate source demonstration. Please contact me at 919-508-8516 or by email at ervin.lane@ncdenr.gov if you have any questions or concerns regarding this correspondence. Thank you for your cooperation in this matter. Sincerely, Ervin Lane Hydrogeologist Environmental Compliance Solid Waste Section 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: 919-508-8400 \ FAX: 919-715-4061 \ Internet: www.wastenotnc.org An Equal Opportunity / Affirmative Action Employer - 50 % Recycled \ 10 % Post Consumer Paper cc: Joel Daniel, P.G., Draper Aden Associates Mark Poindexter, Field Operations Branch Head Jason Watkins, Central District Supervisor Chris Marriot, Environmental Senior Specialist Solid Waste Central Files