6804_OrangeCoCDLF_November2023GWMR_FID1831894_20240312

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Groundwater
Monitoring Program
Results of Sampling
and Analysis
Sampling Event 37: 11.20.23 +
11.21.23 + 11.22.23

Submitted to:
Compliance Unit, NCDEQ-DWM Solid Waste Section 1646 Mail Service Center Raleigh, NC 27699-1646
Orange County Solid Waste Management (Active C&D
Facility) Permit No. 68-04
TRC Project Number: 558034
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, NC 27511
March 2024
Prepared by: Sean Jarvah Environmental Specialist
Reviewed and approved by: Bilgen Yuncu, PhD, PE, PMP Environmental Engineer/Project Manager
WELL ID CAS Number PARAMETER RESULT UNITS QUALIFIER METHOD MDL MRL
REGULATORY
PROTECTION
STANDARD
SOURCE ANALYSIS*
6804-MW211R-20231120 7439-89-6 Iron 2,150 µg/L 6010D NR 50 1,470 FBAC Upgradient well; >MRL; >2L; and >FBAC of 1,470 µg/L; ASD approved 08-25-11
Yellow highlighted well indicates upgradient location
Well ID Format - facility permit number - well ID - sample collection date (yyyymmdd)
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 11, 2019)
Bold italicized values exceed their respective regulatory protection standard (2L, FBAC or MCL).
* Note: These analyses should be interpreted in the context of the groundwater sampling report for this event.
MCL - Maximum Contaminant Level
NR - Not Reported
INORGANIC CONSTITUENTS ATTAINING OR EXCEEDING THEIR REGULATORY PROTECTION STANDARDS [metals (total = not filtered)]
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D LANDFILL
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

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENTS
1. Figures
2. Monitoring Well Network
3. Groundwater Elevation Data

4. Groundwater Velocity Calculations
5. Organic Constituents
6. Inorganic Constituents

7. Laboratory Certificate-Of-Analysis

8. Field Data
9. Statistical Analyses
10. Quality Control Assessment

11. Correspondence

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

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: [phone]
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: [phone]
1000 20000
SCALE IN FEET
AERIAL PROVIDED BY NCONE MAPMrSID, 2021
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: [phone]www.trcsolutions.com

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 2: Monitoring Well Network

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 2 Sampling Event 36: 5.2.23 to 5.4.23 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENT 2 GROUNDWATER MONITORING NETWORK: C&D FACILITY The well monitoring network associated with the active C&D landfill has been revised in accordance with the recently approved Comprehensive Landfill Facility Water Quality Monitoring
Plan (submitted September 2019) and consists of seven wells: Upgradient well:
• 6804-211R Downgradient wells:
• 6804-MW204S
• 6804-MW209
• 6804-MW210D
• 6801-MW04
• 6801-MW110D
• 6801-MW110S
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. In a letter dated May 23, 2012, NCDEQ approved a revised Groundwater Monitoring Plan submitted by the facility, removing monitoring wells 6801-MW110D and 6804-MW204D from the permitted monitoring network. NCDEQ also approved monitoring well 6804-MW211R as the new upgradient well and designated well 6801-MW04 as a downgradient well.

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 elevation elevation
drilling diameter depth to top to top well ground measuring point
well type of date drilling method borehole borehole sand bentonite depth*stickup surface (top of PVC wellpipe)
designation well completed contractor (inches)northing easting (inches)(feet)(feet)(feet)(feet)(feet)(feet)(feet)
MW-201 2MW10 07/14/99 B&C 3.25" HSA 806738.265 1973582.765 7.3 17 7 5 19.64 2.64 529.12 531.76
MW-201R 2MW20 03/24/09 RSD 6" AR 806742.35 1973579.11 6.0 45 18 15 42.00 2.00 529.05 531.05
MW-204S 2MW10 07/14/99 B&C 3.25" HSA 807934.258 1974171.705 7.3 21 9 6 23.01 2.01 515.78 517.79
MW-204D 2MW10 07/25/99 B&C 3.25" HSA 807930.545 1974167.211 7.3 50 16 14 52.64 2.64 516.99 519.63
MW-209 2MW10 07/24/99 B&C 3.25" HSA 807822.942 1974736.071 7.3 22 12 10 24.02 2.02 513.77 515.79
MW-210 2MW15 07/15/99 B&C 3.25" HSA 807857.410 1973848.881 7.3 21 4 2 23.80 2.80 522.48 525.28
MW-210D 2MW10 06/03/13 DDI 6" AR 807854.000 1973854.600 6.0 31.7 19 15 34.74 3.04 520.76 523.8
MW-211R 2MW10 04/28/05 G&C 4" air rotary 807277.338 1973737.408 4.0 40 20 17 43.25 3.25 536.36 539.61
MW-04 1.75MW10 10/31/80 SME 3.25" HSA 807250.43 1974944.46 6.0 53 39 38 53.00 2.33 547.66 549.99
MW-110S 2MW15 03/21/95 BED 6" AR 807019.111 1974956.860 6.0 40 18 16 42.33 2.33 537.91 540.24
MW-110D 2MW15 03/21/95 BED 6" AR 807026.571 1974966.137 6.0 70 55 53 72.30 2.30 537.88 540.18
stick-up = elevation of measuring point - elevation of ground surface
* relative to measuring point
B&C = Bore & Core, Inc. = well abandoned
DDI = Davidson Drilling, Inc.
G&C = Graham & Currie
BED = Bedford Well Drilling, Inc.
RSD = Richard Simmons Drilling, Inc.
SME = S&ME, Inc.

ACTIVE C&D LANDFILL WELLS
NORTH LANDFILL WELLS
SOUTH LANDFILL WELLS
WELL CONSTRUCTION DATA
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 3: Groundwater Elevation Data

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 3 Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENT 3 GROUNDWATER ELEVATION DATA
Static water elevations obtained during the sampling event indicate that well 6804-MW211R
remains hydrogeologically upgradient of all disposal areas within the C&D facility. The elevation of the water table in the uppermost aquifer (that is, excluding “deep” wells where
clustered wells are present) during the subject sampling event was found to vary from a high of
516.54 feet above mean sea level (monitoring well 6804-MW211 R) to a low of 506.31 feet above mean sea level (monitoring well 6804-MW204S). A history of static water elevations is presented
at the end of this ATTACHMENT. 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: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
STATIC WATER LEVELS
Date:11.20.23 + 11.21.23 + 11.22.23
WELL ELEVmp DTW STICKUP DTWc ELEVgs ELEVgw
6801-MW04 549.99 34.10 2.33 31.77 547.66 515.89
6801-MW110 S 540.24 27.50 2.33 25.17 537.91 512.74
6801-MW110 D 540.18 34.95 2.30 32.65 537.88 505.23
6804-MW204 S 517.99 11.68 2.01 9.67 515.78 506.31
6804-MW204 D 517.75 2.64 516.69
6804-MW209 515.95 4.00 2.02 1.98 513.77 511.95
6804-MW210 D 523.80 12.41 3.04 9.37 520.76 511.39
6804-MW211 R 539.49 22.95 3.25 19.70 536.24 516.54
Water table elevations expressed in feet above mean sea level.
Shaded cells indicate data not available
Upgradient Well
500
505
510
515
520
525
530
Feet Above Mean Sea LevelDate
Orange County Solid Waste Management -Active CDD Unit
Historic and Current Water Table Elevations
MW-04 MW-110D MW-110S MW-204S MW-209 MW-210D MW-211R
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF STATIC WATER ELEVATIONS
DATE MW-04 MW-05 MW-110S MW-110D MW-201R MW-204S MW-204D MW-209 MW-210 MW-210D MW-211R
ELEVgs 547.66 522.04 537.91 537.88 529.05 515.78 516.69 513.77 522.48 520.76 536.24
ELEVmp 549.99 523.79 540.24 540.18 531.05 517.99 517.75 515.95 525.17 523.80 539.49
01/03/90 521.61 511.79
04/16/90 523.57 511.66
07/17/90 521.28 506.25
10/29/90 516.65 506.29
01/30/91 518.32 510.41
07/11/91 518.74 506.29
11/14/91 515.07 505.37
05/28/92 516.82 507.62
10/27/92 514.24 505.71
02/23/93 516.82 512.29
06/30/93 520.07 506.37
10/28/93 516.67
01/24/94 516.76 509.97
09/21/94
11/03/94 516.84
12/20/94 516.14 505.78
02/02/95 516.39 505.87
03/13/95 518.02 511.67
03/22/95 512.47 511.13
05/09/95 515.55 509.51
05/18/95 515.39 509.55
07/20/95 516.99 511.08
11/15/95 518.59 509.87
11/28/95 517.31 511.56
02/28/96 520.92 513.65
07/25/96 521.56 505.90
08/07/96 516.69 510.25
08/27/96 515.82 509.34
02/25/97 521.62 511.38 521.55 509.63
09/03/97 519.74 505.84 515.04 507.83
03/25/98 522.77 515.28
05/04/98 524.30 509.76
11/02/98 518.27 504.69 512.93 506.83
04/26/99 519.63 507.19 517.68 511.18
11/22/99 520.70 509.25 517.79 511.26
05/23/00 522.28 509.95 520.63 512.90
11/29/00 518.42 508.48 515.74 508.97
05/30/01 518.04 510.93
06/05/01 519.57 510.52
11/13/01 515.86 506.39 512.84 506.48
06/04/02 515.89 507.87 513.69 507.23
03/13/03 518.74 513.07 519.74 513.23
06/19/03 521.57 514.49 522.04 514.55
12/08/03 519.49 514.04 517.09 510.37
06/22/04 519.56 508.38 517.35 501.48
11/30/04 518.09 512.51 517.64 510.40
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF STATIC WATER ELEVATIONS
DATE MW-04 MW-05 MW-110S MW-110D MW-201R MW-204S MW-204D MW-209 MW-210 MW-210D MW-211R
ELEVgs 547.66 522.04 537.91 537.88 529.05 515.78 516.69 513.77 522.48 520.76 536.24
ELEVmp 549.99 523.79 540.24 540.18 531.05 517.99 517.75 515.95 525.17 523.80 539.49
06/01/05 518.43 509.88
06/06/05 518.52 510.78
11/02/05 515.43 507.17 512.62 505.66
11/09/05 504.69 509.12 510.91 510.74
05/23/06 516.59 515.04 507.89 509.22 512.46 512.57 515.74
11/17/06 515.12 513.38 512.63 507.07 507.42 513.33 513.20 512.75
06/14/07 517.85 509.06 516.41 508.56 508.27 512.16 512.90 515.81
12/12/07 512.44 512.02 510.13 503.69 504.54 507.64 510.43 508.23
06/11/08 515.55 510.20 514.63 507.73 507.78 511.80 511.89 514.95
11/06/08 514.54 509.48 513.28 506.27 506.59 510.77 512.62 512.80
05/20/09 517.14 512.14 516.76 509.70 510.93 513.84 513.00 516.86
11/19/09 514.85 511.55 513.57 507.46 508.93 507.04 512.17 513.29 510.99
06/24/10 518.72 510.98 516.37 509.58 512.12 509.49 512.65 513.03 515.54
11/17/10 515.04 509.85 513.04 505.93 504.73 505.19 509.83 512.68 509.89
05/24/11 516.54 511.91 515.29 508.66 510.38 509.90 513.34 512.98 515.92
11/17/11 513.17 511.10 504.68 504.84 509.56 512.80 510.10
06/05/12 516.81 515.52 509.06 509.94 513.56 513.09 516.51 520.67
11/12/12 515.97 513.66 506.66 507.72 512.90 514.01 518.50
05/13/13 517.75 517.04 510.85 513.24 513.41 518.53 522.04
11/11/13 518.54 516.72 509.15 511.36 513.24 516.82 519.88
05/13/14 521.11 521.52 512.58 515.42 513.41 519.58 526.40
11/11/14 516.49 514.27 506.98 506.32 512.93 513.05 517.30
05/12/15 520.04 519.42 511.92 513.61 512.70 518.10 524.17
11/10/15 517.67 517.28 510.27 508.26 513.30 514.97 521.81
05/18/16 521.95 521.29 513.89 513.98 512.91 518.85 525.35
11/15/16 519.09 517.10 509.15 508.44 512.54 515.25 519.99
05/30/17 518.69 518.00 510.94 511.19 512.65 516.52 519.52
11/14/17 515.54 512.54 505.01 504.64 512.00 510.56 514.93
05/14/18 517.84 516.32 509.58 509.64 512.25 514.82 519.07
11/12/18 518.94 519.36 512.33 512.05 513.13 516.56 522.71
05/20/19 523.13 521.34 513.43 512.74 512.41 518.40 526.37
11/19/19 517.03 513.58 506.73 505.39 512.87 511.30 516.55
05/19/20 519.55 518.56 511.74 511.45 512.75 516.55 521.09
11/17/20 518.84 517.79 511.38 510.57 512.68 516.08 520.66
05/17/21 521.89 519.89 511.93 512.69 512.28 517.65 524.56
11/23/21 517.73 514.80 507.38 507.59 512.25 513.70 517.74
05/23/22 518.76 517.04 509.73 511.39 512.45 516.20 520.54
11/08/22 515.77 512.54 505.36 506.24 511.80 511.40 515.47
05/03/23 519.27 519.04 516.18 515.24 512.60 516.62 523.49
11/20/23 515.89 512.74 505.23 506.31 511.95 511.39 516.54
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF STATIC WATER ELEVATIONS
DATE MW-04 MW-05 MW-110S MW-110D MW-201R MW-204S MW-204D MW-209 MW-210 MW-210D MW-211R
ELEVgs 547.66 522.04 537.91 537.88 529.05 515.78 516.69 513.77 522.48 520.76 536.24
ELEVmp 549.99 523.79 540.24 540.18 531.05 517.99 517.75 515.95 525.17 523.80 539.49
DATE MW-04 MW-05 MW-110S MW-110D MW-201R MW-204S MW-204D MW-209 MW-210 MW-210D MW-211R
MIN 512.44 504.69 510.13 501.48 504.73 504.54 507.64 510.43 508.23 510.56 514.93
MAX 524.30 514.49 522.77 516.18 512.12 515.42 513.84 513.41 518.53 519.58 526.40
MEDIAN 518.09 509.85 516.71 509.58 509.66 509.22 512.17 512.70 514.48 516.20 520.60
RANGE 11.86 9.80 12.64 14.70 7.39 10.88 6.20 2.98 10.30 9.02 11.47
STD 2.45 2.64 2.94 2.92 2.73 3.09 1.84 0.63 2.90 2.59 3.25
Elevations expressed in feet above mean sea level.
Upgradient wells shaded yellow.
All SWE data have been corrected to survey data obtained in May 1999.
ELEV-mp and ELEV-gs derived from survey performed in May 1999.

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 4: Groundwater Velocity Calculations
[Based On Data Presented in Attachment 3]

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.22.23 Attachment 4 OCSWM Active C&D Facility, Permit No. 68-04
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 3, 2013, TRC personnel conducted a falling head slug test on well MW-210D to determine the hydraulic conductivity of the aquifer at that location.
Data were captured using a Solinst LevelLogger. Data were analyzed using the Bouwer-Rice method, with Aquifer Test Pro software. The hydraulic conductivity of the aquifer at that location was found to be 8.32 x 10-5 cm/second. Based upon textural assessment, effective porosity of the uppermost aquifer is estimated to be approximately 0.25 (unitless). Using groundwater elevations measured during the subject sampling event, the hydraulic gradient of the uppermost aquifer was calculated along the flow path from well 6804-MW211R to well 6804-
MW209. The average hydraulic gradient was estimated by dividing the difference between the hydraulic heads (elevation heads) in well 6804-MW211R to well 6804-MW209 by the distance between those two wells (about 1,137 feet). Based on groundwater elevations measured during the subject sampling event, the velocity of
groundwater was calculated along the flow path from well 6804-MW211R to well 6804-MW209. Calculated velocities are presented in the accompanying table. The velocity calculated for the subject sampling event (1.30 feet/year) is approximately 41.0% less than the median velocity
(2.36 feet/year) along the selected flow path. Based on a review of the historical record of groundwater velocity (see graph) since 2012, groundwater velocity has generally oscillated about the median velocity along the selected flow path.

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.22.23 Attachment 4 OCSWM Active C&D Facility, Permit No. 68-04
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.
11/14/17, 0.888
05/20/19, 4.23
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
feet / yeardate measured
GROUNDWATER VELOCITY: MW211R TOWARD MW209
median
from …… toward feet/feet meters/yr feet/yr
date
upgradient
location
upgradient
SWE
downgradient
location
downgradient
SWE gradient GW velocity GW velocity
06/05/12 6804-MW211R 520.67 6804-MW209 513.09 6.67E-03 0.700 2.30
11/12/12 6804-MW211R 518.50 6804-MW209 512.90 4.93E-03 0.517 1.70
05/13/13 6804-MW211R 522.04 6804-MW209 513.41 7.59E-03 0.797 2.62
11/11/13 6804-MW211R 519.88 6804-MW209 513.24 5.84E-03 0.613 2.01
05/13/14 6804-MW211R 526.40 6804-MW209 513.41 1.14E-02 1.20 3.94
11/12/14 6804-MW211R 517.30 6804-MW209 512.93 3.84E-03 0.404 1.32
05/13/15 6804-MW211R 524.17 6804-MW209 512.70 1.01E-02 1.06 3.48
11/10/15 6804-MW211R 521.81 6804-MW209 513.30 7.48E-03 0.786 2.58
05/18/16 6804-MW211R 525.35 6804-MW209 512.91 1.09E-02 1.15 3.77
11/15/16 6804-MW211R 519.99 6804-MW209 512.54 6.55E-03 0.688 2.26
05/30/17 6804-MW211R 519.52 6804-MW209 512.65 6.04E-03 0.635 2.08
11/14/17 6804-MW211R 514.93 6804-MW209 512.00 2.58E-03 0.271 0.888
05/15/18 6804-MW211R 519.07 6804-MW209 512.25 6.00E-03 0.630 2.07
11/12/18 6804-MW211R 522.71 6804-MW209 513.13 8.43E-03 0.885 2.90
05/20/19 6804-MW211R 526.37 6804-MW209 512.41 1.23E-02 1.29 4.23
11/19/19 6804-MW211R 516.55 6804-MW209 512.87 3.24E-03 0.340 1.12
05/19/20 6804-MW211R 521.09 6804-MW209 512.75 7.34E-03 0.770 2.53
11/17/20 6804-MW211R 520.66 6804-MW209 512.68 7.02E-03 0.737 2.42
05/17/21 6804-MW211R 524.56 6804-MW209 512.28 1.08E-02 1.13 3.72
11/23/21 6804-MW211R 517.74 6804-MW209 512.25 4.83E-03 0.507 1.66
05/23/22 6804-MW211R 520.54 6804-MW209 512.45 7.12E-03 0.747 2.45
11/08/22 6804-MW211R 515.47 6804-MW209 511.80 3.23E-03 0.339 1.11
05/03/23 6804-MW211R 523.49 6804-MW209 512.60 9.58E-03 1.006 3.30
11/20/23 6804-MW211R 516.54 6804-MW209 511.95 4.04E-03 0.424 1.39
distance between wells = 1,137 feet
hydraulic conductivity = 8.32E-07 m/sec median = 0.72 2.36
estimated porosity = 0.25 deviation from median =
seconds per year =31,557,600
feet per meter =3.281
-41.0%
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
GROUNDWATER VELOCITY CALCULATIONS

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 5: Summary of Organic Constituents

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 5 Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENT 5 ORGANIC CONSTITUENTS
On November 20 through November 22, 2023 (sampling event 37), TRC personnel obtained groundwater samples from groundwater monitoring wells associated with the Orange County Solid Waste Management Active C&D Facility.
We have received copies of the certificates-of-analysis dated December 6, 2023. During sampling event 37, the laboratory did not detect any organic constituents in groundwater at the active C&D landfill.
Future Actions. Based upon the results of the subject sampling event, the facility may continue monitoring groundwater in accordance with the current program.

acetone 04/17/90
MCL = ♦07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 6000 (2L Std)06/30/93
2L Std = 700 (pre- Jan. 2010)11/04/94
2L Std = 6000 (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
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08 412 J 1.2 100 ic, cc
11/06/08 <1.2 106 S <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100 t, f
05/20/09 <1.5 61 J <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/19/09 <1.5 300 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
06/23/10 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/17/10 <1.5 16 J <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 3.2 J 1.5 100
05/24/11 <1.2 120 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
11/17/11 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
06/05/12 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
11/14/12 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
05/13/13 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
11/12/13 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
05/13/14 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
11/11/14 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
05/13/15 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
11/10/15 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
05/18/16 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 100
11/15/16 <10 <10 <10 <10 <10 <10 10 100
05/30/17 <10 <10 <10 <10 <10 <10 10 100
11/14/17 <10 <10 <10 <10 <10 <10 10 100
05/14/18 <10 <10 <10 <10 <10 <10 10 100
11/14/18 <10 <10 <10 <10 <10 <10 10 20
05/20/19 <10 <10 <10 <10 <10 <10 10 20
11/20/19 <10 <10 <10 <10 <10 <10 10 20
05/19/20 <10 <10 <10 <10 <10 <10 10 20
11/17/20 <10 <10 <10 <10 <10 <10 10 20
05/18/21 <10 <10 <10 <10 <10 <10 10 20
11/23/21 <10 <10 <10 <10 <10 <10 10 20
05/23/22 <10 <10 <10 <10 <10 <10 10 20
11/08/22 <10 <10 <10 <10 <10 <10 10 20
05/02/23 <10 <10 <10 <10 <10 <10 10 20
11/20/23 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 25
MW-210
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
MW-201R
ORGANIC CONSTITUENTS
Constituent Sample Date MW-4 MW-209 MW-210D MDL MRL QA/QCMW-5 MW-110S MW-110D MW-211RMW-204S MW-204D
benzene 04/17/90
MCL = 5 07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 1 (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
11/30/04
06/01/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08 0.7 J 0.1 1.0 ic, cc
11/06/08 <0.1 0.8 J <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0
05/20/09 <0.2 1.1 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.0
11/19/09 <0.2 1.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.0
06/23/10 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.05 1.0
11/17/10 <0.2 1.6 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.0
05/24/11 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 0.68 1.0
11/17/11 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 <0.68 0.68 1.0
06/05/12 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/14/12 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/13/13 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/12/13 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/13/14 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/11/14 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/13/15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/10/15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/18/16 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/15/16 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/30/17 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/14/17 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/14/18 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/14/18 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/20/19 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/20/19 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/19/20 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/17/20 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/18/21 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/23/21 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/23/22 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/08/22 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/02/23 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0
MW-210MW-110S MW-110D MW-209 MW-210D QA/QCMW-204S MDL MRLMW-201R MW-211R
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
ORGANIC CONSTITUENTS
Constituent Sample Date MW-4 MW-5
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
MW-204D
2-butanone 04/17/90
MCL = ♦07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 4000 (2L Std)06/30/93
2L Std = 4200 (pre- Jan. 2010)11/04/94
2L Std = 4000 (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
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08 3.3 J 0.9 100 ic, cc
11/06/08 <0.9 1 J <0.9 <0.9 <0.9 <0.9 <0.9 <0.9 0.9 100
05/20/09 <1 <1 <1 <1 <1 <1 <1 <1 <1 1 100
11/19/09 <1 2.3 J <1 <1 <1 <1 <1 <1 <1 1 100
06/23/10 <1 <1 <1 <1 <1 <1 <1 <1 <1 1 100
11/17/10 <1 <1 <1 <1 <1 <1 <1 <1 <1 1 100
05/24/11 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/17/11 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
06/05/12 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/14/12 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
05/13/13 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/12/13 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
05/13/14 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/11/14 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
05/13/15 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/10/15 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
05/18/16 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/15/16 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
05/30/17 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/14/17 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
05/14/18 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 100
11/14/18 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
05/20/19 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
11/20/19 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
05/19/20 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
11/17/20 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
05/18/21 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
11/23/21 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
05/23/22 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
11/08/22 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
05/02/23 <1.3 <1.3 <1.3 <1.3 <1.3 <1.3 1.3 5.0
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5.0
MW-210
FACILITY: ACTIVE C&D FACILITY
QA/QCMW-5 MW-204S MW-209MW-204DMW-201RMW-110S MW-110D
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
Constituent Sample Date MW-4
ORGANIC CONSTITUENTS
MW-211R MDL MRL
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
MW-210D
carbon disulfide 04/17/90
MCL = ♦07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 700 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
11/30/04
06/01/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08 6 J 0.5 100 ic, cc
11/06/08 <0.5 4.5 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.5 100
05/20/09 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.5 100
11/19/09 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 0.54 100
06/23/10 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 0.54 100
11/17/10 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 <0.54 0.54 100
05/24/11 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/17/11 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
06/05/12 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/14/12 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
05/13/13 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/12/13 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
05/13/14 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/11/14 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
05/13/15 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/10/15 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
05/18/16 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/15/16 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
05/30/17 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/14/17 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
05/14/18 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 100
11/14/18 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
05/20/19 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
11/20/19 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
05/19/20 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
11/17/20 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
05/18/21 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
11/23/21 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
05/23/22 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
11/08/22 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
05/02/23 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 5.0
11/20/23 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 2.0
MW-210
HISTORY OF CHEMICAL ANALYSIS
ORGANIC CONSTITUENTS
MW-209 MW-210DMW-201RConstituentSample Date MW-4 MW-5
LOCATION: CHAPEL HILL, NORTH CAROLINA
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
MW-110D MW-204S MW-204D QA/QCMW-110S
FACILITY: ACTIVE C&D FACILITY
PROJECT: GROUNDWATER MONITORING PROGRAM
MW-211R MDL MRL
chloroform 04/17/90
MCL = 70 07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 70 (2L Std)06/30/93
2L Std = 1.4 (pre- Jan. 2010)11/04/94
2L Std = 6 (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
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08
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
05/13/14
11/11/14
05/13/15
11/10/15
05/18/16
11/15/16
05/30/17
11/14/17
05/14/18
11/14/18 <0.18 <0.18 2.7 <0.18 <0.18 <0.18 0.18 1.0
05/20/19 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
11/20/19 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
05/19/20 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
11/17/20 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
05/18/21 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
01/23/21 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
05/23/22 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
11/08/22 <0.18 <0.18 <0.18 <0.18 <0.18 <0.18 0.18 1.0
05/02/23 <0.18 0.21 J <0.18 <0.18 <0.18 <0.18 0.18 1.0
11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
MW-4 MW-110D MW-201R MW-204S MW-204D MW-209 MW-210 MW-210D MW-211R MDL MRL QA/QCMW-5 MW-110S
ORGANIC CONSTITUENTS
Constituent Sample Date
1,4-dichlorobenzene 04/17/90
MCL = 75 07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 6 (2L Std)06/30/93
2L Std = 1.4 (pre- Jan. 2010)11/04/94
2L Std = 6 (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
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08 0.7 J 0.1 1.0 ic, cc
11/06/08 <0.1 0.6 J <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0
05/20/09 <0.38 0.63 J <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 0.38 1.0
11/19/09 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 0.38 1.0
06/23/10 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.0
11/17/10 <0.38 1 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 <0.38 0.38 1.0
05/24/11 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 0.79 1.0
11/17/11 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 <0.79 0.79 1.0
06/05/12 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/14/12 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/13/13 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/12/13 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/13/14 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/11/14 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/13/15 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/10/15 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/18/16 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/15/16 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/30/17 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/14/17 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/14/18 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/14/18 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/20/19 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/20/19 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/19/20 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/17/20 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/18/21 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/23/21 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/23/22 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/08/22 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
05/02/23 <0.19 <0.19 <0.19 <0.19 <0.19 <0.19 0.19 1.0
11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0
MW-210 QA/QCMW-110D MW-204S MW-204D MW-209 MW-210DMW-201R
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
Constituent Sample Date MW-4 MW-5
ORGANIC CONSTITUENTS
FACILITY: ACTIVE C&D FACILITY
MW-110S
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
MW-211R MDL MRL
1,4-dioxane 04/17/90
MCL = ♦07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 3 (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
11/30/04
06/01/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08
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
05/13/14
11/11/14
05/13/15
11/10/15
05/18/16
11/15/16
05/30/17
11/14/17
05/14/18
11/14/18
05/20/19
11/20/19 1.0 J 0.80,4.0,8.0 2.0,10,20
05/19/20 <0.8 <0.8 <0.8 <0.8 0.8 2.0
11/17/20 <0.8 <0.8 <0.8 <0.8 0.8 2.0
05/18/21 <0.8 <0.8 <0.8 <0.8 0.8 2.0
11/23/21 <0.8 <0.8 <0.8 <0.8 0.8 2.0
05/23/22 <0.8 <0.8 <0.8 <0.8 0.8 2.0
11/08/22 <0.8 <0.8 <0.8 <0.8 0.8 2.0
05/02/23 <0.32 <0.32 <0.30 <0.30 <0.30 <0.30 0.32 0.50
11/20/23 <2.0 <2.0 <2.0 <2.0 <2.0 <2.0 2.00
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
ORGANIC CONSTITUENTS
Constituent Sample Date MW-4 MW-5 MW-110S MW-110D MW-201R MW-204S MW-204D MW-209 MW-210 MW-210D MW-211R MDL MRL QA/QC
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
cis-1,2-dichloroethene 04/17/90
MCL = 70 07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 70 (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
11/30/04
06/01/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08 1 J 0.1 5.0 ic, cc
11/06/08 <0.1 0.9 J <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 5.0
05/20/09 <0.36 0.67 J <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 5.0
11/19/09 <0.4 1 J <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 0.4 5.0
06/23/10 <0.075 <0.075 <0.075 <0.075 <0.075 <0.075 <0.075 <0.075 <0.075 0.075 5.0
11/17/10 <0.36 1.6 J <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 5.0
05/24/11 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 0.72 5.0
11/17/11 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 <0.72 0.72 5.0
06/05/12 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
11/14/12 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
05/13/13 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
11/12/13 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
05/13/14 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
11/11/14 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
05/13/15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
11/10/15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
05/18/16 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
11/15/16 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
05/30/17 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
11/14/17 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
05/14/18 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 5.0
11/14/18 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/20/19 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/20/19 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/19/20 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/17/20 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/18/21 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/23/21 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/23/22 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
11/08/22 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 0.15 1.0
05/02/23 <0.15 <0.15 0.15 J <0.15 <0.15 <0.15 0.15 1.0
11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0
MW-210
HISTORY OF CHEMICAL ANALYSIS
ORGANIC CONSTITUENTS
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
MW-201R MDL MRLMW-110S MW-110D MW-204SConstituent MW-204D MW-209 MW-210D QA/QCSample Date MW-4 MW-5
PROJECT: GROUNDWATER MONITORING PROGRAM
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
MW-211R
toluene 04/17/90
MCL = 1000 07/11/91
FBAC = MDL (LOD)05/28/92
NCGQS = 600 (2L Std)06/30/93
2L Std = 1000 (pre- Jan. 2010)11/04/94
2L Std = 600 (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
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/09/08
06/17/08 0.4 J 0.3 1.0 ic, cc
11/06/08 <0.3 0.4 J <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 0.3 1.0
05/20/09 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 0.3 1.0
11/19/09 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 0.27 1.0
06/23/10 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 0.053 1.0
11/17/10 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 0.27 1.0
05/24/11 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 0.85 1.0
11/17/11 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 <0.85 0.85 1.0
06/05/12 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/14/12 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/13/13 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/12/13 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/13/14 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/11/14 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/13/15 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/10/15 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/18/16 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/15/16 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/30/17 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/14/17 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/14/18 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/14/18 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/20/19 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/20/19 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/19/20 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/17/20 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/18/21 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/23/21 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/23/22 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/08/22 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
05/02/23 <0.14 <0.14 <0.14 <0.14 <0.14 <0.14 0.14 1.0
11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0
MW-210DMW-210 QA/QC
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
MW-201RConstituentSample Date MW-4 MW-5 MW-110S MW-110D MW-204S
HISTORY OF CHEMICAL ANALYSIS
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
MDL MRL
ORGANIC CONSTITUENTS
MW-204D MW-209 MW-211R
All results in µg/L.
Empty cells indicate data not available.
Upgradient well shaded yellow.
Blue bolded values indicate concentrations that exceeded the FBAC.
Red bolded values indicate concentrations that exceeded the NCGQS.
Green bolded cells indicate concentrations that were greater than the Method Detection Limit (>MDL) but <SWSL,
or <MDL, if no SWSL.
B - detect associated with blank contamination J - concentration is estimated
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 d - duplicates beyond limits
ss - surrogate spikes beyond limits is - internal standard beyond limits
sd - serial dilution beyond limits ms - matrix spike beyond limits
ics - interference check sample beyond limits lcs – laboratory control sample beyond limits
q – reporting limit standard beyond limits msd - matrix spike duplicate beyond limits
FBAC – facility background NCGQS - Groundwater Standard, as established by the NCDEQ
SWSL - solid waste section limit, as established by NCDEQ SPL - statistical prediction limit
GWPS - ground water protection standard SWSL eliminated in 2019 and replaced with Method Reporting Limit
ORGANIC CONSTITUENTS
HISTORY OF CHEMICAL ANALYSIS
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 6: Summary of Inorganic Constituents

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.22.23 Attachment 6 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENT 6 INORGANIC CONSTITUENTS
On November 20, through November 22, 2023 (sampling event 37), TRC personnel obtained groundwater samples from groundwater monitoring wells associated with the Orange County Solid Waste Management Active C&D Facility. Groundwater samples were hand delivered to Pace
Laboratories, Inc out of Cary, NC. 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). Information presented on the certificates may be summarized as follows: During event 37, the laboratory detected (>MDL) six inorganic (metal) constituents: arsenic, barium, cobalt, iron (C&D parameter), manganese (C&D parameter) and zinc. Of the six inorganic constituents detected, the laboratory was able to quantify (>MRL) the concentrations of six inorganic constituents: arsenic, barium, cobalt, iron (C&D parameter), manganese (C&D parameter) and zinc.
Of the six inorganic constituents that the laboratory was able to quantify (>MRL), the concentrations of one metal exceeded both the Groundwater Quality Standard (2L Standard)
and Facility Background Concentration (FBAC) and four metals exceeded their respective 2L Standard but were less than their respective current FBAC. One metal (zinc) exceeded the current FBAC but was less than the current 2L Standard.

 The reported concentration of iron in upgradient well 6804-MW211R (2,150 µg/L exceeded both the 2L (300 µg/L) and FBAC (1,470 µg/L). As discussed below, an alternate source demonstration (ASD) was approved for iron at the active C&D landfill in August 2011.
 The reported concentration of manganese in upgradient well 6804-MW211R (3,640 µg/L) exceeded its Groundwater Quality Standard (50 µg/L) but was less than its Facility Background Concentration (4,070 µg/L). Compliance wells MW-204S (325 µg/L), MW-209 (279 µg/L), and MW-210D (580 µg/L), exceeded the Groundwater Quality Standard (50 µg/L) but not the Facility Background Concentration (4,070 µg/L). As discussed below, an alternate source demonstration (ASD) was approved for manganese at the active C&D
landfill in August 2011.
 The reported concentration of cobalt in well 6804-MW211R (24.2 µg/L) exceeded its Groundwater Quality Standard (1.0 µg/L) but was less than its Facility Background
Concentration (36.52 µg/L). As discussed below, an alternate source demonstration (ASD) was approved for cobalt at the active C&D landfill in September 2011.

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.22.23 Attachment 6 OCSWM Active C&D Facility, Permit No. 68-04
• The reported concentration of arsenic in well 6801-MW110D (14.0 µg/L), exceeded its Groundwater Quality Standard (10 µg/L) but was less than its Facility Background
Concentration (447 µg/L).
• The reported concentration of zinc in well 6804-MW209 (50.2 µg/L), exceeded the Facility Background Concentration of 22.7 µg/L, but not the Groundwater Quality Standard (1,000 µg/L).
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 landfills. Approved Alternate Source Demonstrations for the C&D landfill are summarized below:
 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 site 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.
 Iron. OCSWM submitted an Alternate Source Demonstration (dated July 8, 2011), showing that total iron observed in groundwater at the site could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated August 25, 2011), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total iron may be attributed to the naturally occurring presence of iron in onsite soil and rock.
 Lead. OCSWM submitted an Alternate Source Demonstration (dated September 2,
2011), showing that total lead observed in groundwater at the site 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 cobalt in onsite soils.

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.22.23 Attachment 6 OCSWM Active C&D Facility, Permit No. 68-04
 Manganese. OCSWM submitted an Alternate Source Demonstration (dated July 9,
2011), showing that total manganese observed in groundwater at the site could have been derived from onsite soils. In a letter from NCDEQ to OCSWM (dated August 25,
2011), NCDEQ approved the Alternate Source Demonstration. In accordance with the approved Alternate Source Demonstration, the reported exceedances of total manganese may be attributed to the naturally occurring presence of manganese in
onsite soil and rock.
 Vanadium. OCSWM submitted an Alternate Source Demonstration (dated September 2, 2011), 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 September 26, 2011), 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. Future Actions. Based upon the results of the subject sampling event, the facility may
continue monitoring groundwater in accordance with the current program.
0
5
10
15
20
25
Arsenic Concentration (µg/L)Date
Orange County Solid Waste Mangement -Active CDD Unit
Historic and Current Concentrations of Arsenic in Groundwater
MW-110D NC 2L Limit

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 6: Metals
0
10
20
30
40
50
60
Cobalt Concentration (µg/L)Date
Orange County Solid Waste Mangement -Active CDD UnitHistoric and Current Concentrations of Cobalt in Groundwater
MW-209 MW-211R NC 2L Limit FBAC
0
10
20
30
40
50
60
70
Zinc Concentration (µg/L)Date
Orange County Solid Waste Mangement -Active CDD UnitHistoric and Current Concentrations of Zinc in Groundwater
MW-209 NC 2L Limit 1,000 µg/L FBAC
antimony 04/17/90
MCL = 6 07/11/91
FBAC = MRL 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
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07 <1.2 <1.2 1.8 JB <1.2 <1.2 <1.2 1.4 JB 1.2 6.0 f,i
06/09/08 <1.2 <1.2 1.6 JB 2.2 JB <1.2 <1.2 <1.2 <1.2 1.2 6.0 i
11/06/08 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 1.2 6.0
05/20/09 <0.68 <0.68 <0.68 <0.68 1.59 JB <0.68 0.77 JB <0.68 <0.68 0.68 6.0 i
11/19/09 <0.073 <0.073 <0.073 0.106 J 0.319 J <0.073 <0.073 <0.073 <0.073 0.073 6.0
06/23/10 <0.22 0.352 J <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0
11/17/10 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0
05/24/11 <0.22 0.37 J <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 0.22 6.0
11/17/11 <0.22 <0.22 <0.22 <0.22 <0.22 0.554 J <0.22 0.22 6.0
06/05/12 1 JB 1.18 JB 0.797 JB 0.561 JB 0.963 JB 0.262 JB <0.22 0.432 JB 0.22 6.0 i
11/14/12 <0.22 0.34 J 0.373 J <0.22 <0.22 <0.22 0.22 6.0 i
05/13/13 0.320 J 0.277 J 0.492 JB <0.22 <0.22 <0.22 0.22 6.0 i
11/12/13 <0.220 <0.220 0.890 J <0.220 <0.220 <0.220 0.220 6.0
05/13/14 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0
11/11/14 0.603 J 0.609 J 0.660 J <0.220 <0.220 <0.220 0.220 6.0
05/13/15 0.780 J 0.765 J 0.775 J <0.220 0.251 J <0.220 0.220 6.0
11/10/15 0.237 J <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0
05/18/16 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 6.0
11/15/16 1.00 J 0.967 J 0.742 J <0.220 <0.220 <0.220 0.220 6.0
05/30/17 <0.370 <0.370 <0.370 <0.370 <0.370 <0.370 0.370 6.0
11/14/17 <0.370 <0.370 <0.370 <0.370 <0.370 <0.370 0.370 6.0
05/14/18 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 1.85 6.0
11/14/18 <1.85 <1.85 <1.85 <1.85 <1.85 <1.85 1.85 5.0
05/20/19 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0
11/20/19 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0
05/19/20 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0
11/17/20 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0
05/18/21 <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 2.0
05/23/22 <0.740 <0.740 <0.740 <0.740 <0.740 <0.740 0.740 2.0
11/08/22 <0.52 <0.52 <0.52 <0.52 <0.52 <0.52 0.52 5.0
05/02/23 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 9 20
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
arsenic 04/17/90 <10 <10
MCL = 10 07/11/91 <10 <10
FBAC = 447 ppb 05/28/92 <10 <10
NCGQS = 10 (2L Std)06/30/93 <10
2L Std = 50 (pre- Jan. 2010)11/04/94 <10
2L Std = 10 (Jan. 2010)12/20/94 <10
02/02/95 <10
(Concentrations in 03/13/95 <10 <10
MW-110D represent 05/18/95 <10 25 J
background conditions 07/20/95 <10 27 J
for South sanitary 11/15/95 <10 <10
landfill; FBAC for this 11/28/95 <10 176
well has been 02/28/96 <10 14
previously established 07/25/96 <10
as 447 ppb; see report 08/27/96 <10 20
for further discussion)02/25/97 <10 <10 <10 <10
09/03/97 <10 <10 12 B
03/25/98 <10 11
05/04/98 <10 <10
11/02/98 <10 <10 <10
04/26/99 <10 <10 <10
11/22/99 <10 <10 <10
05/23/00 <10 20 J <10 10 J
11/29/00 <10 <10 <10
05/30/01 <10 324
06/05/01 <10 20
11/13/01 <10 <10 447 J
06/04/02 <10 <10 342 J
03/12/03 <10
06/18/03 <10 <10 312
12/08/03 <10 <10 149 J
06/22/04 <10 <10 <10
11/30/04 <10 <10 <1006/01/05 <10
06/06/05 <10 15711/02/05 <10 <10 <1011/09/05 <10 <10 <10 <10
05/23/06 <10 <10 132 <10 <10 <10 <1011/17/06 <10 <10 152 <10 <10 <10 <10
06/13/07 <5.5 <5.5 260 <5.5 <5.5 <5.5 <5.5 5.5 1012/12/07 <5.5 <5.5 48.7 <5.5 <5.5 <5.5 <5.5 5.5 10
06/09/08 <5.5 <5.5 <5.5 42 B <5.5 <5.5 <5.5 <5.5 5.5 10 t, i11/06/08 <5.5 <5.5 <5.5 87.9 B <5.5 <5.5 <5.5 <5.5 5.5 10 f
05/20/09 <2.8 20.1 <2.8 11.9 <2.8 4.1 J <2.8 <2.8 <2.8 2.8 1011/19/09 5.74 JB 33.3 <2.8 8.78 J <2.8 <2.8 <2.8 <2.8 <2.8 2.8 10 f
06/23/10 3.14 JB 26 <2.8 13.1 4.66 J <2.8 <2.8 <2.8 2.96 JB 2.8 10 i11/17/10 <2.8 36.9 <2.8 15.9 3.55 JB <2.8 <2.8 <2.8 9.13 JB 2.8 10 i
05/24/11 <2.8 21.8 <2.8 31.6 <2.8 <2.8 <2.8 <2.8 <2.8 2.8 1011/17/11 <2.8 13.4 B <2.8 <2.8 <2.8 4.64 JB 3.26 JB 2.8 10 i
06/05/12 <2.8 <2.8 15.2 <2.8 <2.8 <2.8 <2.8 <2.8 2.8 1011/14/12 <2.8 3.42 JB 16 B <2.8 <2.8 <2.8 4.66 JB 2.8 10 i
05/13/13 <5.4 <5.4 8.92 J <5.4 <5.4 <5.4 <5.4 5.4 1011/12/13 <5.40 <5.40 13.6 <5.40 <5.40 <5.40 <5.40 5.40 10
05/13/14 <5.40 <5.40 12.6 <5.40 <5.40 <5.40 <5.40 5.40 10
11/11/14 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 <5.40 5.40 10
05/13/15 <6.80 <6.80 11.5 <6.80 <6.80 <6.80 <6.80 6.80 10
11/10/15 <6.80 <6.80 7.92 J <6.80 <6.80 <6.80 <6.80 6.80 10
05/18/16 <6.80 <6.80 10.2 <6.80 <6.80 <6.80 <6.80 6.80 10
11/15/16 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10
05/30/17 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 <6.80 6.80 10
11/14/17 <6.80 <6.80 9.02 J <6.80 <6.80 <6.80 <6.80 6.80 10
05/14/18 <6.80 <6.80 10.1 <6.80 <6.80 <6.80 <6.80 6.80 10
11/14/18 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10
05/20/19 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10
11/20/19 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10
05/19/20 <7.60 <7.60 8.42 J <7.60 <7.60 <7.60 <7.60 7.60 10
11/17/20 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10
05/18/21 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 <7.60 7.60 10
11/23/21 <7.60 <7.60 9.87 J <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 <7.60 7.60 10
11/08/22 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 <6.4 6.4 20
05/02/23 <6.4 <6.4 8.8 J <6.4 <6.4 <6.4 <6.4 6.4 20
11/20/23 <10.0 <10.0 14.0 <10.0 <10.0 <10.0 <10.0 10
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
barium 04/17/90 71 <50
MCL = 2000 07/11/91 <100 482
FBAC = 117.6 (SPL)05/28/92 <100 <100
NCGQS = 700 (2L Std)06/30/93 <500
2L Std = 2000 (pre- Jan. 2010)11/04/94 <500
2L Std = 700 (Jan. 2010)12/20/94 <500
02/02/95 <500
03/13/95 <500 <500
05/18/95 <500 <500
07/20/95 <500 <500
11/15/95 <500 <500
11/28/95 <500 512
02/28/96 <500 <500
07/25/96 <500
08/27/96 <500 <500
02/25/97 <500 <500 <500 <500
09/03/97 <500 <500 <500
03/25/98 <500 <500
05/04/98 <500 <500
11/02/98 <500 <500 <500
04/26/99 <500 <500 <500
11/22/99 <500 <500 <500
05/23/00 <500 <500 <500 <500
11/29/00 <500 <500 <500
05/30/01 <500 <500
06/05/01 <500 <500 <500
11/13/01 <500 <500 <500
06/04/02 <500 <500 <500
03/12/03 <500 <500
06/18/03 <500 <500
12/08/03 <500 <500
06/22/04 <500 <500
11/30/04 <500 <500
06/01/05 <500
06/06/05 <500 <500
11/02/05 <500 <500 <500
11/09/05 <500 <500 <500 <500
05/23/06 <500 <500 <500 <500 <500 <500 <500
11/17/06 <500 <500 <500 <500 <500 <500 <500
06/13/07 64.9 J 6.1 JB 53.8 J 22.9 JB 85.1 J 34.1 JB 60.2 J 1.1 100 t, f
12/12/07 53.1 J 25.1 J 14.5 J 50.9 J 54.2 J 33.4 J 88 J 1.1 100 i
06/11/08 53.2 J 91.4 J 4.8 JB 11.4 JB 57.5 J 77.0 J 30.2 J 63.4 J 1.1 100 t, f, i
11/06/08 53.7 JB 163 5.5 JB 22.3 JB 40.2 JB 66.4 J 29.5 JB 6.35 JB 1.1 100 t, f, i
05/20/09 68.8 J 77.9 J <4.2 5.19 J 131 69.6 J 61 J 45.5 J 75.4 J 4.2 100
11/19/09 57.6 J 71.5 J 3.2 J 3.96 J 65.6 J 65.9 J 51.3 J 44.9 J 46.4 J 1 100
06/23/10 107 49.5 J 5.93 J 4.01 J 50.2 J 44 J 55.9 J 55.2 J 77.8 J 1 100
11/17/10 63.3 J 91.3 J 3.99 J 4.79 J 41.7 J 44 J 49.8 J 50.2 J 103 1 100
05/24/11 77.5 J 67.3 J 3.88 J 9.97 J 50.2 J 44.8 J 60.5 J 52.5 J 45.8 J 1 100
11/17/11 66.3 J 4.59 J 3.91 J 76.7 J 54.9 J 45.6 J 50.3 J 1 100
06/05/12 88.1 J 3.29 J 4.51 J 73.8 J 62.6 J 50.6 J 48.3 J 43.3 J 1 100
11/14/12 67.1 J 3.96 J 55.1 J 43.4 J 95.5 J 60.6 J 1 100
05/13/13 64.1 J 4.16 J 36 J 45.2 J 139 42.9 J 1 100
11/12/13 64.2 J 4.45 J 44.3 J 48.9 J 19.8 J 47.5 J 1.00 100
05/13/14 66.8 J 4.30 J 52.7 J 39.6 J 18.7 J 51.3 J 1.00 100
11/11/14 67.9 J 4.58 J 48.1 J 42.4 J 18.3 J 61.4 J 1.00 100
05/13/15 79.3 J 4.95 J 35.0 J 42.6 J 17.3 J 62.1 J 1.00 100
11/10/15 65.5 J 3.55 J 32.5 J 38.5 J 17.3 J 83.1 J 1.00 100
05/18/16 76.2 J 4.33 J 46.0 J 38.3 J 16.4 J 57.2 J 1.00 100
11/15/16 73.0 J 4.83 J 37.6 J 32.8 J 16.5 J 71.6 J 1.00 100
05/30/17 67.4 J 4.20 J 38.8 J 32.6 J 15.2 J 79.9 J 1.00 100
11/14/17 72.3 J 5.55 J 40.1 J 31.9 J 15.4 J 68.1 J 1.00 100
05/14/18 69.0 J 4.17 J 26.8 J 32.8 J 13.2 J 122 1.00 100
11/14/18 69.8 4.10 J 28.5 31.5 15.6 120 1.10 10
05/20/19 78.8 6.34 J 32.0 28.6 15.7 99.9 1.10 10
11/20/19 75.4 4.40 J 36.4 22.7 18.3 98.1 1.10 10
05/19/20 77.3 3.72 J 24.3 24.5 12.2 109 1.10 10
11/17/20 68.8 4.23 J 28.1 19.1 11.8 173 1.10 10
05/18/21 88.4 5.08 J 32.9 21.0 13.5 131 1.10 10
11/23/21 76.3 5.15 J 26.1 16.8 13.2 120 1.10 10
05/23/22 79.5 4.42 J 29.5 22.6 12.3 140 1.10 10
11/08/22 73 <4.4 35 25 11 120 4.4 10
05/02/23 79 <4.4 53 23 11 150 4.4 10
11/20/23 80.1 <5.0 29.0 19.1 11.7 112 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
beryllium 04/17/90
MCL = 4 07/11/91
FBAC = 0.16 05/28/92
NCGQS = 4 (GWPS)06/30/93
11/04/94 <2
12/20/94 <2
02/02/95 <2
03/13/95 <2 2.8
05/18/95 2 <2
07/20/95 <2 3
11/15/95 <2 2.6
11/28/95 <2 37
02/28/96 <2 2.6
07/25/96 <2
08/27/96 <2 <2
02/25/97 <2 <2 <2 <2
09/03/97 <2 <2 <2
03/25/98 <2 <2
05/04/98 <2 <2
11/02/98 <2 <2 <2
04/26/99 <2 <2 <2
11/22/99 <2 <2 <2
05/23/00 <2 <2 <2 <2
11/29/00 <2 <2 <2
05/30/01 <2 <2
06/05/01 <2 <2 <2
11/13/01 <2 <2 <2
06/04/02 <2 <2 <2
03/12/03 <2 <2
06/18/03 <2 <2
12/08/03 <2 <2
06/22/04 <2 <2
11/30/04 <2 <2
06/01/05 <2
06/06/05 <2 <2
11/02/05 <2 <2 <2
11/09/05
05/23/06 <2 <2 <2
11/17/06
06/13/07 0.6 J <0.2 0.4 J <0.2 <0.2 <0.2 <0.2 0.2 1.012/12/07 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.4 JB 0.2 1.0 i06/11/08 <0.2 <0.2 <0.2 0.6 J 0.3 J 0.3 J <0.2 <0.2 0.2 1.011/06/08 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 0.2 1.005/20/09 0.08 J <0.08 <0.08 0.12 J 0.35 J 0.24 J <0.08 <0.08 <0.08 0.08 1.011/19/09 <0.1 <0.1 <0.1 <0.1 0.14 J 0.189 J <0.1 <0.1 <0.1 0.1 1.006/23/10 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.249 J 0.1 1.011/17/10 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.7 J 0.1 1.005/24/11 0.125 J 0.111 J <0.1 0.106 J <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.011/17/11 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.248 J 0.1 1.006/05/12 0.133 J <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 1.011/14/12 <0.1 <0.1 <0.1 <0.1 0.138 J <0.1 0.1 1.005/13/13 <0.1 <0.1 <0.1 <0.1 0.462 J 0.137 J 0.1 1.011/12/13 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0
05/13/14 <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 <0.100 <0.100 0.119 J 0.100 1.0
05/13/15 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0
11/10/15 <0.100 <0.100 <0.100 <0.100 <0.100 0.153 J 0.100 1.0
05/18/16 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0
11/15/16 0.188 J <0.100 <0.100 <0.100 <0.100 <0.100 0.100 1.0
05/30/17 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 0.130 1.0
11/14/17 0.137 J <0.130 <0.130 <0.130 <0.130 0.182 J 0.130 1.0
05/14/18 <0.130 <0.130 <0.130 <0.130 <0.130 <0.130 0.130 1.0
11/14/18 <0.160 <0.160 <0.160 0.281 JB 0.301 JB 0.279 JB 0.160 1.0 i
05/20/19 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0
11/20/19 <0.160 <0.160 <0.160 <0.160 <0.160 0.212 J 0.160 1.0
05/19/20 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0
11/17/20 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0
05/18/21 <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 1.0
05/23/22 <0.160 <0.160 <0.160 <0.160 <0.160 <0.160 0.160 1.0
11/08/22 <0.30 <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 0.30 4.0
11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
cadmium 04/17/90 <2 <2
MCL = 5 07/11/91 <2 <2
FBAC = MRL 05/28/92 <2 <2
NCGQS = 2 (2L Std)06/30/93 2.7
2L Std = 1.75 (pre- Jan. 2010)11/04/94 <1
2L Std = 2 (Jan. 2010)12/20/94 <1
02/02/95 <1
03/13/95 <1 1.1 B
05/18/95 <1 1.7 B
07/20/95 <1 6.1 J
11/15/95 1.2 B 1.7 B
11/28/95 4 J <1
02/28/96 <1 1.2 B
07/25/96 <1
08/27/96 <1 <1
02/25/97 <1 <1 <1 <1
09/03/97 <1 <1 <1
03/25/98 <1 <1
05/04/98 <1 <1
11/02/98 <1 <1 <1
04/26/99 <1 <1 <1
11/22/99 <1 <1 <1
05/23/00 <1 <1 4J <1
11/29/00 <1 <1 1.2 B
05/30/01 <1 2
06/05/01 <1 <1 <1
11/13/01 <1 <1 <1 <1
06/04/02 <1 <1 <1
03/12/03 <1 <1
06/18/03 1 B <1
12/08/03 <1 <1
06/22/04 <1 <1
11/30/04 <1 <1
06/01/05 <1
06/06/05 <1 <1
11/02/05 <1 <1 <1
11/09/05 <1 <1 <1 <1
05/23/06 <1 <1 <1 <1 <1 <1 <1
11/17/06 <1 <1 <1 <1 <1 <1 <1
06/13/07 0.6 JB <0.2 3.1 <0.2 <0.2 0.7 JB 0.6 JB 0.2 1.0 t, f12/12/07 <0.2 <0.2 <0.2 <0.2 <0.2 0.3 JB 0.5 JB 0.2 1.0 i06/11/08 <0.2 <0.2 0.4 JB 0.4 JB 0.6 J 0.3 J 0.4 J <0.2 0.2 1.0 i11/06/08 <0.2 <0.2 0.2 JB <0.2 <0.2 <0.2 0.6 JB 0.6 JB 0.2 1.0 t, f, i05/20/09 0.29 J 0.25 JB 0.23 J 0.15 J 0.43 JB 0.19 JB 0.11 JB 0.42 JB 0.27 JB 0.09 1.0
11/19/09 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1.0
06/23/10 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 1.33 0.36 1.0
11/17/10 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.984 J 0.36 1.0
05/24/11 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.625 J 0.36 1.0
11/17/11 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.465 J 0.36 1.0
06/05/12 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.563 J <0.36 0.36 1.0
11/14/12 <0.36 0.43 J <0.36 <0.36 <0.36 <0.36 0.36 1.0
05/13/13 <0.36 <0.36 <0.36 <0.36 <0.36 <0.36 0.36 1.0
11/12/13 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0
05/13/14 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0
11/11/14 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0
05/13/15 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0
11/10/15 0.433 J <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0
05/18/16 <0.360 <0.360 <0.360 0.721 J <0.360 <0.360 0.360 1.0
11/15/16 <0.360 <0.360 <0.360 0.519 J <0.360 <0.360 0.360 1.0
05/30/17 <0.360 <0.360 <0.360 0.567 J <0.360 <0.360 0.360 1.0
11/14/17 <0.360 <0.360 <0.360 0.608 J <0.360 <0.360 0.360 1.0
05/14/18 <0.360 <0.360 <0.360 0.659 J <0.360 <0.360 0.360 1.0
11/14/18 <0.360 <0.360 <0.360 0.788 JB <0.360 <0.360 0.360 1.0 i
05/20/19 <0.360 <0.360 <0.360 0.507 J <0.360 <0.360 0.360 1.0
11/20/19 <0.360 <0.360 <0.360 0.790 JB <0.360 0.587 JB 0.360 1.0 i
05/19/20 <0.360 <0.360 <0.360 0.478 J <0.360 <0.360 0.360 1.0
11/17/20 <0.360 <0.360 <0.360 <0.360 <0.360 <0.360 0.360 1.0
05/18/21 <0.360 <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 0.360 1.0
05/23/22 <0.360 <0.360 <0.360 0.393 J <0.360 <0.360 0.360 1.0
11/08/22 <0.44 <0.44 <0.44 <0.44 <0.44 <0.44 0.44 5.0
05/02/23 <0.44 <0.44 <0.44 0.52 J <0.44 <0.44 0.44 5.0
11/20/23 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
chromium 04/17/90 <20 <20
MCL = 100 07/11/91 <20 <20
FBAC = 3.17 05/28/92 <20 <20
NCGQS = 10 (2L Std)06/30/93 <20
2L Std = 50 (pre- Jan. 2010)11/04/94 <10
2L Std = 10 (Jan. 2010)12/20/94 <10
02/02/95 <10
03/13/95 <10 <10
05/18/95 16.5 B 10 B
07/20/95 12 B 22 J
11/15/95 <10 12
11/28/95 <10 69
02/28/96 <10 <10
07/25/96 <10
08/27/96 <10 11 B
02/25/97 <10 <10 <10 <10
09/03/97 <10 <10 <10
03/25/98 <10 <10
05/04/98 <10 <10
11/02/98 <10 <10 <10
04/26/99 <10 <10 <10
11/22/99 <10 <10 <10
05/23/00 <10 <10 <10 <10
11/29/00 <10 <10 <10
05/30/01 <10 <10
06/05/01 <10 <10 <10
11/13/01 <10 <10 <10
06/04/02 <10 <10 <10
03/12/03 <10 <10
06/18/03 <10 <10
12/08/03 <10 <10
06/22/04 <10 <10
11/30/04 <10 <10
06/01/05 <10
06/06/05 <10 <10
11/02/05 <10 <10 <10
11/09/05 <10 <10 <10 <10
05/23/06 <10 <10 <10 <10 <10 <10 <10
11/17/06 <10 <10 <10 <10 <10 <10 <10 i
06/13/07 5.9 JB 1.3 JB <0.7 1.8 JB 1.6 JB 2.2 JB 2.2 JB 0.7 10 f
12/12/07 <0.7 <0.7 <0.7 1 JB <0.7 <0.7 1.9 JB 0.7 10 i
06/11/08 0.8 JB 0.7 JB 0.9 JB 2.1 JB 3.6 J 1.5 J 0.8 J 2.3 J 0.7 10 t, f
11/06/08 <0.7 28.6 1.9 JB <0.7 2.8 J <0.7 6.7 J 16.8 0.7 10 t, f, i
05/20/09 0.9 J 3.7 J <0.7 <0.7 <0.7 1.9 J <0.7 <0.7 3 J 0.7 10
11/19/09 <1 <1 <1 <1 <1 1.36 J <1 <1 <1 1 10
06/23/10 4.74 J <1 <1 <1 <1 <1 <1 <1 1.04 J 1 10
11/17/10 2.9 J <1 <1 <1 <1 <1 <1 <1 9.87 J 1 10
05/24/11 1.99 J 6.1 J <1 1.14 J <1 <1 <1 1.21 J 1.8 J 1 10
11/17/11 <1 <1 <1 2.18 J <1 1.19 J 4.45 J 1 10
06/05/12 2.81 J <1 <1 1.6 J <1 <1 2.99 J <1 1 10
11/14/12 <1 <1 <1 <1 1.84 J <1 1 10
05/13/13 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 1.4 10
11/12/13 <1.40 <1.40 <1.40 <1.40 <1.40 3.17 J 1.40 10
05/14/14 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
11/11/14 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
05/13/15 <1.40 4.21 J 4.84 JB 8.23 JB 4.40 JB 5.52 JB 1.40 10
11/10/15 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
05/18/16 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
11/15/16 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
05/30/17 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
11/14/17 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
05/14/18 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
11/14/18 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
05/20/19 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
11/20/19 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
05/19/20 <1.40 <1.40 <1.40 <1.40 <1.40 1.96 J 1.40 10
11/17/20 <1.40 <1.40 <1.40 <1.40 <1.40 2.13 J 1.40 10
05/18/21 <1.40 <1.40 <1.40 <1.40 <1.40 3.27 J 1.40 10
11/23/21 <1.40 <1.40 <1.40 <1.40 <1.40 16.2 1.40 10
05/23/22 <1.40 <1.40 <1.40 <1.40 <1.40 2.42 J 1.40 10
11/08/22 1.5 J <1.1 <1.1 1.5 J <1.1 <1.1 1.1 10
05/02/23 <0.0039 <0.0039 <0.0039 <0.0039 <0.0039 <0.0039 <0.0039 0.0039 0.030
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
cobalt 04/17/90
MCL = ♦07/11/91
FBAC = 36.52 (SPL)05/28/92
NCGQS = 1 (GWPS)06/30/93
GWPS = 70 (pre-Oct. 2010)11/04/94 <4
GWPS = 1 (Oct. 2010)12/20/94 <10
02/02/95 <10
03/13/95 <10 100
05/18/95 43 J 16 J
07/20/95 23 14
11/15/95 <10 91 J
11/28/95 15 810
02/28/96 17 14
07/25/96 <10
08/27/96 10 29
02/25/97 <10 140 <10 <10
09/03/97 <10 <10 <10
03/25/98 <10 <10
05/04/98 <10 132
11/02/98 <10 <10 <10
04/26/99 <10 <10 <10
11/22/99 <10 <10 <10
05/23/00 <10 212 <10 <10
11/29/00 <10 <10 <10
05/30/01 <10 <10
06/05/01 <10 278 <10
11/13/01 <10 <10 <10
06/04/02 <10 <10 <10
03/12/03 <10 <10
06/18/03 <10 <10
12/08/03 <10 <10
06/22/04 <10 <10
11/30/04 <10 <10
06/01/05 <10
06/06/05 <10 <10
11/02/05 <10 <10 <10
11/09/05
05/23/06 <10 <10 <10
11/17/06
06/13/07 0.9 J <0.7 1.7 J 1.9 J <0.7 1.5 J 4.1 J 0.7 10
12/12/07 <0.7 0.7 J <0.7 11.5 <0.7 2.3 J 2.8 J 0.7 10
06/11/08 <0.7 241 <0.7 1.7 J 9 J 0.8 J 2.1 J 11.2 0.7 10
11/06/08 <0.7 237 2.3 J 1.6 J 4.6 J <0.7 2.3 J 7.2 J 0.7 10
05/20/09 <0.6 173 <0.6 1.1 J 11.2 8.9 J <0.6 3.7 J 12.6 0.6 10
11/19/09 <1.1 186 <1.1 <1.1 4.72 J 11.2 <1.1 4.77 J 4.6 J 1.1 10
06/23/10 3.37 J 134 <1.1 <1.1 <1.1 5.42 J <1.1 35 10.6 1.1 10
11/17/10 <1.1 177 <1.1 <1.1 1.58 J 4.48 J <1.1 19 11.2 1.1 10
05/24/11 <1.1 204 <1.1 <1.1 <1.1 2.86 J <1.1 13.8 4.22 J 1.1 10
11/17/11 <1.1 <1.1 1.15 J 7.98 J <1.1 9.35 J 5.5 J 1.1 10
06/05/12 1.61 J <1.1 <1.1 6.21 J <1.1 11 2.02 J 7.05 J 1.1 10
11/14/12 <1.1 <1.1 6.18 J 11 2.61 J 9.72 J 1.1 10
05/13/13 <1.1 <1.1 3.04 J 10.4 3.2 J 6.81 J 1.1 10
11/12/13 <1.10 1.48 J 3.98 J 14.0 <1.10 7.09 J 1.10 10
05/14/14 <1.10 1.25 J 10.9 8.89 J <1.10 6.74 J 1.10 10
11/11/14 <1.10 1.38 J 7.14 J 10.1 <1.10 8.92 J 1.10 10
05/13/15 <1.10 2.15 J 5.77 J 8.10 J <1.10 7.31 J 1.10 10
11/10/15 <1.10 <1.10 2.47 J 7.09 J <1.10 9.51 J 1.10 10
05/18/16 <1.10 <1.10 5.99 J 5.76 J <1.10 4.91 J 1.10 10
11/15/16 <1.10 <1.10 3.46 J 6.25 J <1.10 6.98 J 1.10 10
05/30/17 <1.10 <1.10 4.82 J 3.70 J <1.10 10.1 1.10 10
11/14/17 <1.10 <1.10 3.26 J 5.71 J <1.10 8.90 J 1.10 10
05/14/18 <1.10 <1.10 1.82 J 4.63 J <1.10 24.4 1.10 10
11/14/18 <1.40 <1.40 4.68 J 4.55 J <1.40 16.0 1.40 10
05/20/19 <1.40 <1.40 7.63 J 4.54 J <1.40 22.1 1.40 10
11/20/19 <1.40 <1.40 2.78 J 3.69 J <1.40 20.5 1.40 10
05/19/20 <1.40 <1.40 2.07 J 4.33 J <1.40 23.0 1.40 10
11/17/20 <1.40 <1.40 <1.40 2.48 J <1.40 50.8 1.40 10
05/18/21 <1.40 <1.40 3.98 J 2.91 J <1.40 28.8 1.40 10
11/23/21 <1.40 <1.40 1.9 J 2.17 J <1.40 28.4 1.40 10
05/23/22 <1.40 <1.40 2.49 J 3.61 J <1.40 36.1 1.40 10
11/08/22 <1.40 <1.40 2.5 J 3.3 J <1.40 24 1.40 10
05/02/23 <1.40 <1.40 <1.40 2.2 J <1.40 31 1.40 10
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 24.2 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
copper 04/17/90 <20 <20
MCL = 1300 07/11/91 <20 <20
FBAC = 2.499 05/28/92 <20 35
NCGQS = 1,000 (2L Std)06/30/93 <20
11/04/94 <200
12/20/94 <200
02/02/95 <200
03/13/95 <200 <200
05/18/95 <200 <200
07/20/95 <200 <200
11/15/95 <200 211
11/28/95 <200 483
02/28/96 <200 <200
07/25/96 <200
08/27/96 <200 <200
02/25/97 <200 <200 <200 <200
09/03/97 <200 <200 <200
03/25/98 <200 <200
05/04/98 <200 <200
11/02/98 <200 <200 <200
04/26/99 <200 <200 <200
11/22/99 <200 <200 <200
05/23/00 <200 <200 <200 <200
11/29/00 <200 <200 <200
05/30/01 <200 <200
06/05/01 <200 <200 <200
11/13/01 <200 <200 <200
06/04/02 <200 <200 <200
03/12/03 <200 <200
06/18/03 <200 <200
12/08/03 <200 <200
06/22/04 <200 <200
11/30/04 <200 <200
06/01/05 <200
06/06/05 <200 <200
11/02/05 <200 <200 <200
11/09/05
05/23/06 <200 <200 <200
11/17/06
06/13/07 <2 <2 2.2 JB 4.4 JB 3.1 JB 4.4 JB 4.3 JB 2 10 t
12/12/07 2.6 J 2.7 J <2 8.3 J <2 2.2 J 6.8 J 2 10
06/11/08 <2 14.8 B 2.2 JB <2 13.1 5.3 JB 7.4 JB <2 2 10 t, i
11/06/08 <2 2.2 JB <2 <2 <2 <2 3.6 JB <2 2 10 t, i
05/20/09 2.76 J 7.39 J <0.81 1.01 J 3.38 J 4.14 J <0.81 0.89 J <0.81 0.81 10
11/19/09 2.03 J 13.6 <1.6 <1.6 4.93 J 4.54 J <1.6 3.51 J <1.6 1.6 10
06/23/10 26.5 3.8 J <1.6 <1.6 <1.6 2.04 J <1.6 3.4 J 3.5 J 1.6 10
11/17/10 7.7 J 3.6 J <1.6 3.01 J <1.6 1.93 J <1.6 4.14 J 17.3 1.6 10
05/24/11 8.77 J 4.72 J 3.17 J 3.17 J <1.6 <1.6 <1.6 10.4 <1.6 1.6 10
11/17/11 2.92 J <1.6 <1.6 5.6 J <1.6 2.62 J 4.57 J 1.6 10
06/05/12 10.6 J 1.78 J 1.65 J 5.43 J <1.6 10.6 <1.6 2.48 J 1.6 10 ms/msd
11/14/12 <1.6 <1.6 <1.6 5.53 J <1.6 <1.6 1.6 10
05/13/13 <1.6 <1.6 <1.6 2.16 J <1.6 <1.6 1.6 10
11/12/13 <1.60 <1.60 <1.60 2.95 J <1.60 <1.60 1.60 10
05/14/14 <1.60 <1.60 1.63 J 12.3 <1.60 3.52 J 1.60 10
11/11/14 <1.60 4.98 J <1.60 13.3 <1.60 <1.60 1.60 10
05/13/15 <1.60 <1.60 <1.60 10.5 <1.60 2.50 J 1.60 10
11/10/15 <1.60 <1.60 <1.60 7.35 J <1.60 <1.60 1.60 10
05/18/16 <1.60 <1.60 <1.60 8.52 J <1.60 1.93 J 1.60 10
11/15/16 <1.60 4.25 J <1.60 14.8 <1.60 2.54 J 1.60 10
05/30/17 <1.60 <1.60 <1.60 4.97 J <1.60 <1.60 1.60 10
11/14/17 2.86 J <1.60 <1.60 5.18 J <1.60 1.63 J 1.60 10
05/14/18 <1.60 <1.60 <1.60 13.0 <1.60 1.78 J 1.60 10
11/14/18 <1.60 <1.60 <1.60 12.1 <1.60 <1.60 1.60 10
05/20/19 <1.60 <1.60 <1.60 14.5 <1.60 <1.60 1.60 10
11/20/19 <1.60 <1.60 <1.60 3.10 J <1.60 <1.60 1.60 10
05/19/20 <1.60 <1.60 <1.60 5.55 J <1.60 <1.60 1.60 10
11/17/20 <1.60 <1.60 <1.60 1.88 J <1.60 1.92 J 1.60 10
05/18/21 <1.60 <1.60 <1.60 1.86 J <1.60 <1.60 1.60 10
11/23/21 <1.60 <1.60 <1.60 <1.60 <1.60 <1.60 1.60 10
05/23/22 <1.60 <1.60 <1.60 5.27 J <1.60 <1.60 1.60 10
11/08/22 <3.2 <3.2 <3.2 17 J <3.2 <3.2 3.2 20
05/02/23 <3.2 <3.2 <3.2 8.9 J <3.2 <3.2 3.2 20
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
iron 04/17/90
MCL = ♦07/11/91
FBAC = 1,470 05/28/92
NCGQS = 300 (2L Std)06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 156000 95.7 JB 59 JB 357 913 1290 3100 21.5 300 t, f12/12/07 284 J 74 JB 12500 2180 857 139 B 3240 21.5 300 t
06/11/08 428 24900 <21.5 9510 2040 5650 398 7010 21.5 30011/06/08 196 JB 3800 115 JB 2440 859 2700 287 JB 4050 21.5 300 f
05/20/09 1150 3640 216 J 2180 59 J 3160 391 223 J 3820 31 30011/19/09 664 12500 218 J 2440 285 J 3530 320 336 2010 22 300
06/23/10 10900 8500 550 1780 879 988 293 J 603 8430 22 30011/17/10 3380 50500 256 J 3330 4750 1250 380 727 24600 22 300
05/24/11 3040 23900 171 J 8710 2490 585 457 1580 1980 22 30011/17/11 1110 2110 369 3600 408 695 7730 22 30006/05/12 5080 103 J 2610 3990 480 1270 914 979 22 30011/14/12 464 163 J 803 555 3410 462 22 30005/13/13 383 152 J 182 J 400 4800 459 22 30011/12/13 <22.0 89.5 J 557 709 329 332 22.0 300
05/14/14 91.9 J 175 J 1990 1530 168 J 295 J 22.0 300
11/11/14 48.3 J 258 J 498 1510 303 663 22.0 300
05/13/15 83.1 J 118 J 540 1210 119 J 296 J 22.0 300
11/10/15 151 J 356 197 J 1040 170 J 408 22.0 300
05/18/16 <22.0 90.7 617 1000 93.6 192 22.0 300
11/15/16 <22.0 225 J 344 1440 119 J 366 22.0 300
05/30/17 32.4 J 80.7 J 263 J 257 J 140 J 566 22.0 300
11/14/17 105 J 141 J 229 J 387 142 J 900 22.0 300
05/14/18 101 J 64.4 J 182 J 1410 58.2 J 2270 22.0 300
11/14/18 147 114 341 1550 153 639 22.0 50
05/20/19 <22.0 123 700 1570 78.9 2030 22.0 50
11/20/19 76.2 169 266 293 298 1850 22.0 50
05/19/20 187 55.0 140 145 62.8 1830 22.0 50
11/17/20 92.7 119 327 127 71.4 1930 22.0 50
05/18/21 261 82.3 106 210 45.4 J 1510 22.0 50
11/23/21 88.0 103 216 115 61.8 2130 22.0 50
05/23/22 50.8 103 227 169 38 1610 22.0 50
11/08/22 73 J 140 1400 43 J 1100 20 100
05/02/23 96 J 69 J 240 77 J 57 J 1300 20 100
11/20/23 106 139 193 233 53.7 2150 50
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
lead 04/17/90 <5 <5
MCL = 15 07/11/91 7.3 <5
FBAC = MRL 05/28/92 <10 18.3
NCGQS = 15 (2L Std)06/30/93 <5
11/04/94 <10
12/20/94 <10
02/02/95 <10
03/13/95 <10 40
05/18/95 17.3 B 31.1 B
07/20/95 <10 37
11/15/95 <10 54 J
11/28/95 <10 163 J
02/28/96 21 B 18 B
07/25/96 <10
08/27/96 <10 13
02/25/97 <10 16 B <10 <10
09/03/97 <10 <10 14 B
03/25/98 <10 <10
05/04/98 <10 37
11/02/98 <10 <10 <10
04/26/99 <10 <10 <10
11/22/99 <10 <10 <10
05/23/00 <10 <10 <10 <10
11/29/00 <10 <10 <10
05/30/01 <10 40
06/05/01 <10 <10
11/13/01 <10 <10 31
06/04/02 <10 <10 27
03/12/03 <10 <10
06/18/03 <10 <10
12/08/03 <10 <10
06/22/04 <10 <10
11/30/04 <10 <10
06/01/05 <10
06/06/05 <10 16
11/02/05 <10 <10 <10
11/09/05 <10 <10 <10 <10
05/23/06 <10 <10 12 <10 <10 <10 <10
11/17/06 <10 <10 <10 <10 <10 <10 <10
06/13/07 6.6 JB <2 22.1 <2 4.4 JB 5.7 JB 3.2 JB 2 10 f
12/12/07 <2 <2 4.4 J <2 <2 <2 7.5 J 2 10
06/11/08 <2 8.5 JB <2 5.5 JB 5 JB 2 JB 3.4 JB <2 2 10 i
11/06/08 <2 3.9 J <2 10 JB <2 3.3 J 2 J 4.2 J 2 10 i
05/20/09 <1.6 3.3 J <1.6 1.6 J <1.6 3.5 J <1.6 <1.6 <1.6 1.6 10
11/19/09 <1.9 5.31 J <1.9 <1.9 <1.9 4.23 J <1.9 2.89 J <1.9 1.9 10
06/23/10 3.87 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 14.8 1.9 10
11/17/10 1.98 J 3.26 J <1.9 3.07 J <1.9 <1.9 <1.9 2.87 J 29.9 1.9 10
05/24/11 <1.9 4.62 J <1.9 5.61 J <1.9 <1.9 <1.9 4.16 J 2.44 J 1.9 10
11/17/11 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 8.32 J 1.9 10
06/05/12 <1.9 <1.9 <1.9 2.62 J <1.9 <1.9 <1.9 <1.9 1.9 10
11/14/12 2.36 J <1.9 2.79 J 2.13 J 5.83 J <1.9 1.9 10
05/13/13 <2.1 <2.1 <2.1 <2.1 6.48 J <2.1 2.1 10
11/12/13 <2.10 <2.10 <2.10 <2.10 2.62 J <2.10 2.10 10
05/14/14 <2.10 <2.10 <2.10 2.49 J <2.10 <2.10 2.10 10
11/11/14 <2.10 <2.10 <2.10 <2.10 <2.10 <2.10 2.10 10
05/13/15 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10
11/10/15 <3.10 4.07 J <3.10 3.95 J <3.10 <3.10 3.10 10
05/18/16 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10
11/15/16 <3.10 <3.10 <3.10 4.36 J <3.10 <3.10 3.10 10
05/30/17 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10
11/14/17 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10
05/14/18 <3.10 <3.10 <3.10 4.56 J <3.10 <3.10 3.10 10
11/14/18 <3.10 <3.10 <3.10 5.54 J <3.10 <3.10 3.10 10
05/20/19 <3.10 <3.10 <3.10 4.91 J <3.10 <3.10 3.10 10
11/20/19 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10
05/19/20 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10
11/17/20 <3.10 <3.10 <3.10 <3.10 <3.10 <3.10 3.10 10
05/18/21 <3.10 <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 3.10 10
05/23/22 <3.10 <3.10 <3.10 3.38 J <3.10 <3.10 3.10 10
11/08/22 <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 10
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
manganese 04/17/90
MCL = ♦07/11/91
FBAC = 4070 05/28/92
NCGQS = 50 (2L Std)06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 7.8 J 6 J 63 118 179 368 1780 0.2 50 t, f12/12/07 11.3 J 17.6 J 32 J 205 283 259 956 0.2 50
06/11/08 23.3 J 10400 8.4 JB 44 292 296 195 4460 0.2 50 t, i11/06/08 6.7 JB 1250 39.4 J 33.8 JB 304 426 132 5190 0.2 50 f
05/20/09 16.4 J 8820 6 J 70.3 906 334 307 379 6870 1.1 5011/19/09 9.89 J 11100 7.91 J 55.4 581 269 357 340 3540 1.1 50
06/23/10 149 9260 13 J 62.8 1080 217 229 1630 5520 1.1 5011/17/10 42.2 J 15800 6.99 J 48.3 J 2150 252 246 907 3250 1.1 50 i
05/24/11 41.9 J 14300 9.4 J 65.7 788 336 189 621 1710 1.1 50 i11/17/11 15.9 J 57.3 14.1 J 350 301 400 1730 1.1 5006/05/12 65.4 5.24 J 54.7 416 257 575 1630 1340 1.1 5011/14/12 7.70 J 12.7 J 522 554 2910 1470 1.1 5005/13/13 6.88 J 4.75 JB 320 534 1100 1250 1.1 50 i
11/12/13 1.22 J 10.8 J 362 895 944 1160 1.10 50
05/14/14 3.99 J 9.97 J 733 455 715 1400 1.10 50
11/11/14 1.66 J 16.8 J 530 505 786 1450 1.10 50
05/13/15 2.39 J 9.24 J 447 374 581 1560 1.10 50 i
11/10/15 4.52 JB 7.71 J 320 365 719 1810 1.10 50 i
05/18/16 1.23 J 8.70 J 716 316 585 1290 1.10 50
11/15/16 1.22J 9.93 J 439 320 793 1560 1.10 50
05/30/17 1.33J 8.79 J 497 233 676 1950 1.10 50
11/14/17 2.95 J 13.7 J 397 301 784 1860 1.10 50
05/14/18 2.74 J 8.77 J 156 242 357 4070 1.50 50
11/14/18 3.68 J 4.49 J 305 229 664 2800 1.50 10
05/20/19 7.31 J 7.31 J 597 210 481 3510 1.50 10
11/20/19 5.11 J 20.5 459 230 1030 3190 1.50 10
05/19/20 13.9 8.80 J 241 231 380 3980 1.50 10
11/17/20 3.48 J 3.08 J 272 190 481 6960 1.50 10
05/18/21 4.66 J 2.31 J 519 193 355 4840 1.50 10
11/23/21 4.33 J 8.69 J 269 176 575 4160 1.50 10
05/23/22 3.67 J 2.57 J 309 188 282 5720 1.50 10
11/08/22 1.3 J 2.9 J 350 250 510 3700 1.3 10
05/02/23 7.5 J 6.6 J 230 180 310 6400 1.3 10
11/20/23 <5.0 <5.0 325 279 580 3640 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
mercury 04/17/90 <0.2 <0.2
MCL = 2 07/11/91 <0.2 0.58
FBAC = 0.237 MRL 05/28/92 <0.2 <0.2
NCGQS = 1 (2L Std)06/30/93 <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
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97 <0.5 <0.5
09/03/97
03/25/98
05/04/98
11/02/98 <0.2
04/26/99
11/22/99 <0.2
05/23/00 0.6 J <0.2
11/29/00 <0.2
05/30/01
06/05/01 0.3
11/13/01
06/04/02 <0.2
03/12/03 <0.2
06/18/03 <0.2
12/08/03 <0.2
06/22/04 <0.2
11/30/04 <0.2
06/01/05 <0.2
06/06/05
11/02/05 <0.2
11/09/05 <0.2 <0.2 <0.2 <0.2
05/23/06 <0.2 <0.2 <0.2 <0.2 <0.2
11/17/06 <0.2 <0.2 <0.2 <0.2 <0.2
06/13/07 <0.01 <0.01 <0.01 <0.01 <0.01 0.02 J <0.01 0.01 0.20
12/12/07 0.02 JB <0.01 <0.01 0.06 JB <0.01 0.03 JB 0.16 JB 0.01 0.20 t,i
06/11/08 0.1 JB 0.04 JB 0.06 JB 0.08 JB 0.11 JB 0.18 JB 0.13 JB <0.2 0.01 0.20 t, i
11/06/08 0.14 JB <0.01 0.16 JB 0.13 JB 0.05 JB 0.17 JB 0.09 JB 0.1 JB 0.01 0.20 t, f, i
05/20/09 <0.05 0.05 0.20
11/19/09 <0.054 0.117 J <0.054 <0.054 0.149 J <0.054 0.0611 J 0.182 J <0.054 0.054 0.20
06/23/10 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.20
11/17/10 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.20
05/24/11 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.20
11/17/11 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.269 0.17 0.20
06/05/12 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.20
11/14/12 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.20
05/13/13 <0.17 <0.17 <0.17 <0.17 <0.17 <0.17 0.17 0.20
11/12/13 <0.170 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.20
05/14/14 <0.170 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.20
11/11/14 <0.170 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.20
05/13/15 <0.170 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.20
11/10/15 <0.170 <0.170 <0.170 0.223 <0.170 0.229 0.170 0.20
05/18/16 <0.170 <0.170 <0.170 0.239 <0.170 <0.170 0.170 0.20
11/15/16 <0.170 <0.170 <0.170 0.208 <0.170 <0.170 0.170 0.20
05/30/17 <0.170 <0.170 <0.170 <0.170 <0.170 <0.170 0.170 0.20
11/14/17 <0.0990 <0.0990 <0.0990 <0.0990 <0.0990 <0.0990 0.0990 0.20
05/14/18 <0.150 <0.150 <0.150 0.217 <0.150 0.273 0.150 0.20
11/14/18 <0.150 <0.150 <0.150 0.177 J <0.150 <0.150 0.150 0.20
05/20/19 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.20
11/20/19 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.20
05/19/20 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.20
11/17/20 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.20
05/18/21 <0.150 <0.150 <0.150 0.166 J <0.150 <0.150 0.150 0.20
11/23/21 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 0.150 0.20
05/23/22 <0.150 <0.150 <0.150 0.223 <0.150 <0.150 0.150 0.20
11/08/22 <0.080 <0.080 0.080 0.20
05/02/23 <0.080 <0.080 <0.080 0.23 <0.080 <0.080 0.080 0.20
11/20/23 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 0.20
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
nickel 04/17/90
MCL = ♦07/11/91
FBAC = 4.78 05/28/92
NCGQS = 100 (2L Std)06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07 2.6 JB 2.6 JB 2.4 JB 2.2 JB <0.6 0.9 JB 3.2 JB 0.6 50 t,i
06/11/08 <0.6 3.8 J <0.6 1.8 J 3.3 J <0.6 <0.6 1.5 J 0.6 50
11/06/08 9.2 J 8.8 J 1.8 JB 10.9 JB 12 J 18.4 J 2.8 J 7.7 J 0.6 50 t, f
05/20/09 <0.6 3.2 J 1.1 J 2.5 J 1.4 J 1.3 J <0.6 <0.6 4.9 J 0.6 50
11/19/09 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 1.8 50
06/23/10 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 2.72 J 1.8 50
11/17/10 <1.8 2.72 J <1.8 2.2 J <1.8 <1.8 <1.8 <1.8 4.01 J 1.8 50
05/24/11 <1.8 1.81 J <1.8 2.97 J <1.8 <1.8 <1.8 <1.8 <1.8 1.8 50
11/17/11 <1.8 2.1 J <1.8 1.95 J <1.8 <1.8 2.75 J 1.8 50
06/05/12 <1.8 <1.8 1.89 J <1.8 <1.8 <1.8 2.47 J <1.8 1.8 50
11/14/12 <1.8 <1.8 <1.8 <1.8 2.07 J <1.8 1.8 50
05/13/13 <1.8 1.91 J <1.8 <1.8 <1.8 <1.8 1.8 50
11/12/13 <1.80 <1.80 <1.80 <1.80 <1.80 <1.80 1.80 50
05/14/14 <1.80 <1.80 <1.80 <1.80 <1.80 <1.80 1.80 50
11/11/14 <1.80 <1.80 1.92 J <1.80 <1.80 <1.80 1.80 50
05/13/15 <1.80 3.39 J 2.80 J 4.27 J <1.80 3.49 J 1.80 50
11/10/15 <1.80 <1.80 <1.80 <1.80 <1.80 <1.80 1.80 50
05/18/16 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50
11/15/16 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50
05/30/17 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50
11/14/17 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50
05/14/18 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 50
11/14/18 <2.20 <2.20 2.56 J <2.20 <2.20 3.30 J 2.20 10
05/20/19 <2.20 <2.20 2.31 J <2.20 <2.20 4.78 J 2.20 10
11/20/19 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10
05/19/20 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10
11/17/20 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10
05/18/21 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10
11/23/21 <2.20 <2.20 <2.20 <2.20 <2.20 3.40 J 2.20 10
05/23/22 <2.20 <2.20 <2.20 <2.20 <2.20 <2.20 2.20 10
11/08/22 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 3.3 40
05/02/23 <3.3 <3.3 <3.3 <3.3 <3.3 <3.3 3.3 40
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
selenium 04/17/90
MCL = 50 07/11/91
FBAC = MRL 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
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/11/08
11/06/08
05/20/09 <3.4 <3.4 5 J 5.9 J <3.4 <3.4 <3.4 6.1 J <3.4 3.4 10
11/19/09 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 10
06/23/10 <0.83 <0.83 <0.83 <0.83 <0.83 0.926 J <0.83 1.43 J 10.4 0.83 10
11/17/10 <0.83 10.9 B <0.83 <0.83 <0.83 <0.83 <0.83 1.89 J 5.09 J 0.83 10 i
05/24/11 <0.83 <0.83 <0.83 <0.83 0.998 J 1.4 J <0.83 3.23 J 10.1 0.83 10
11/17/11 <0.83 <0.83 <0.83 0.948 J <0.83 2.61 J 2.73 J 0.83 10
06/05/12 <0.83 <0.83 <0.83 <0.83 <0.83 1.72 J <0.83 <0.83 0.83 10
11/14/12 <0.83 <0.83 <0.83 2.84 J <0.83 <0.83 0.83 10
05/13/13 <0.91 <0.91 <0.91 2.45 J <0.91 <0.91 0.91 10
11/12/13 <0.910 <0.910 <0.910 1.98 J <0.910 <0.910 0.910 10
05/14/14 <0.910 <0.910 <0.910 3.12 J <0.910 <0.910 0.910 10
11/11/14 <0.910 <0.910 <0.910 2.34 J <0.910 <0.910 0.910 10
05/13/15 <0.910 <0.910 <0.910 3.60 J <0.910 <0.910 0.910 10
11/10/15 <0.910 <0.910 <0.910 3.09 J <0.910 <0.910 0.910 10
05/18/16 <0.910 <0.910 1.58 J 6.67 J <0.910 <0.910 0.910 10
11/15/16 <0.910 <0.910 <0.910 2.11 J <0.910 <0.910 0.910 10
05/30/17 <0.910 <0.910 <0.910 2.70 J <0.910 <0.910 0.910 10
11/14/17 <0.910 <0.910 <0.910 2.01 J <0.910 <0.910 0.910 10
05/14/18 <4.55 <4.55 <4.55 <4.55 <4.55 <4.55 4.55 10
11/14/18 <4.55 <4.55 <4.55 <4.55 <4.55 <4.55 4.55 5.0
05/20/19 <1.82 <1.82 <1.82 3.12 <1.82 <1.82 1.82 2.0
11/20/19 <1.82 <1.82 <1.82 4.16 <1.82 <1.82 1.82 2.0
05/19/20 <1.82 <1.82 <1.82 3.20 <1.82 <1.82 1.82 2.0
11/17/20 <1.82 <1.82 <1.82 3.22 D <1.82 <1.82 1.82 2.0
05/18/21 <1.82 <1.82 2.29 5.19 <1.82 <1.82 1.82 2.0
11/23/21 <1.82 <1.82 <1.82 <1.82 <1.82 <1.82 1.82 2.0
05/23/22 <1.82 <1.82 <1.82 2.47 <1.82 <1.82 1.82 2.0
11/08/22 <1.2 <1.2 <1.2 2.7 <1.2 <1.2 1.2 2.5
05/02/23 <10 <10 <10 <10 <10 <10 10 20
11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 10
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
silver 04/17/90
MCL = ♦07/11/91
FBAC = MRL 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
05/18/95 <10 <10
07/20/95 <10 <10
11/15/95
11/28/95 <10 <10
02/28/96 <10 <10
07/25/96
08/27/96 <10 <10
02/25/97 <10 <10
09/03/97 <10 <10
03/25/98 10 B 14 B
05/04/98
11/02/98 <10 <10
04/26/99 <10 <10
11/22/99 <10 <10
05/23/00 <10 <10
11/29/00 <10 <10 <10
05/30/01 <10 <10
06/05/01 <10 <10
11/13/01 <10 <10 <10
06/04/02 <10 <10 <10
03/12/03 <10 <10
06/18/03 <10 <10
12/08/03 <10 <10
06/22/04 <10 <10
11/30/04 <10 <10
06/01/05 <10
06/06/05
11/02/05 <10 <10
11/09/05 <10 <10 <10 <10
05/23/06 <10 <10 <10 <10 <10 <10 <10
11/17/06 <10 <10 <10 <10 <10 <10 <10
06/13/07 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 1.1 10
12/12/07 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 <1.1 1.1 10
06/11/08 <1.1 <1.1 <1.1 <1.1 <1.1 1.6 JB 1.6 JB <1.1 1.1 10 i
11/06/08 <1.1 <1.1 <1.1 <1.1 <1.1 3.9 JB <1.1 <1.1 1.1 10 i
05/20/09 <1 2 J <1 <1 <1 <1 <1 <1 2.1 J 1 10
11/19/09 <1.9 2.68 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10
06/23/10 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10
11/17/10 <1.9 5.16 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 2.04 J 1.9 10
05/24/11 <1.9 3.42 J <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10
11/17/11 <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 3.28 J <1.9 1.9 10
11/14/12 <1.9 <1.9 <1.9 <1.9 <1.9 <1.9 1.9 10
05/13/13 <1.9 2.13 J <1.9 <1.9 <1.9 <1.9 1.9 10
11/12/13 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
05/14/14 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/11/14 1.96 JB <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10 i
05/13/15 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/10/15 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
05/18/16 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/15/16 <1.90 <1.90 1.93 J 2.20 J <1.90 <1.90 1.90 10
05/30/17 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/14/17 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
05/14/18 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/14/18 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
05/20/19 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/20/19 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
05/19/20 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/17/20 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
05/18/21 <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 10
05/23/22 <1.90 <1.90 <1.90 <1.90 <1.90 <1.90 1.90 10
11/08/22 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 10
05/02/23 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 1.5 10
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
thallium 04/17/90
MCL = 2 07/11/91
FBAC = 0.205 05/28/92
NCGQS = 0.28 06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 <2.7 4.2 JB <2.7 8 B 4.5 JB 4.6 JB <2.7 2.7 5.5 t, i
12/12/07 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 5.5
06/11/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 5.5
11/06/08 <2.7 <2.7 <2.7 4.7 JB <2.7 3.2 JB <2.7 <2.7 2.7 5.5 i
05/20/09 <0.036 0.061 JB <0.036 <0.036 <0.036 <0.036 <0.036 <0.036 <0.036 0.036 5.5 i
11/19/09 0.26 J <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5
06/23/10 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5
11/17/10 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 0.11 5.5
05/24/11 0.38 J 0.437 J <0.11 <0.11 <0.11 0.136 J <0.11 0.16 J <0.11 0.11 5.5
11/17/11 0.129 J <0.11 <0.11 <0.11 <0.11 0.173 J <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 5.5
11/14/12 <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 5.5
11/12/13 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5
05/14/14 <0.110 <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 0.110 5.5
05/13/15 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5
11/10/15 <0.110 <0.110 <0.110 <0.110 <0.110 <0.110 0.110 5.5
05/18/16 <0.110 <0.110 <0.110 0.123 J <0.110 <0.110 0.110 5.5
11/15/16 <0.110 <0.110 0.173 J 0.167 J 0.123 J <0.110 0.110 5.5
05/30/17 0.355 J 0.177 J <0.110 0.132 J <0.110 <0.110 0.110 5.5
11/14/17 0.273 J 0.135 J 0.386 J 0.535 J 0.463 J 0.205 J 0.110 5.5
05/14/18 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 0.550 5.5
11/14/18 <0.550 <0.550 <0.550 <0.550 <0.550 <0.550 0.550 5.0
05/20/19 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0
11/20/19 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0
05/19/20 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0
11/17/20 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0
05/18/21 <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 2.0
05/23/22 <0.220 <0.220 <0.220 <0.220 <0.220 <0.220 0.220 2.0
11/08/22 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 0.26 1.0
05/02/23 <8.0 <8.0 <8.0 <8.0 <8.0 <8.0 8.0 25
11/20/23 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 10
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
tin 04/17/90
MCL = ♦07/11/91
FBAC = MRL 05/28/92
NCGQS = 2,000 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
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07
12/12/07
06/11/08
11/06/08
05/20/09
11/19/09
06/23/10
11/17/10
05/24/11
11/17/11
06/05/12 2.97 J 2.1 100
11/14/12
05/13/13 <2.1 2.1 100
11/12/13
05/14/14 <2.10 2.10 100
11/11/14
05/13/15 <2.40 2.40 100
11/10/15
05/18/16 <2.40 2.40 100
11/15/16
05/30/17 <2.40 2.40 100
11/14/17
05/14/18 <2.40 2.400 100
11/14/18
05/20/19 0.388 J 2.90 10.0
11/20/19 <2.90 2.90 10.0
05/19/20 <2.90 2.90 10.0
11/17/20 <2.90 2.90 10.0
05/18/21 <2.90 2.90 10.0
11/23/21 <2.90 2.90 10.0
05/23/22 <2.90 2.90 10.0
11/08/22
05/02/23 <11 50 11
11/20/23
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
vanadium 04/17/90
MCL = ♦07/11/91
FBAC = MRL 05/28/92
NCGQS = 0.3 (GWPS)06/30/93
GWPS = 3.5 (pre-Oct. 2010)11/04/94
GWPS = 0.3 (Oct. 2010)12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 1.5 J <0.4 <0.4 7.6 J <0.4 <0.4 1.5 J 0.4 25
12/12/07 <0.4 <0.4 <0.4 1.6 J <0.4 <0.4 4.6 J 0.4 25
06/11/08 2.1 JB 5.2 J <0.4 1.9 JB 3.3 J <0.4 1.8 JB 3.7 J 0.4 25 t, f, i
11/06/08 1.2 JB 2.4 JB <0.4 1.4 JB 0.8 JB <0.4 1 JB 1.1 JB 0.4 25 f
05/20/09 2.9 J <0.7 <0.7 1 J <0.7 2.8 J <0.7 <0.7 <0.7 0.7 25
11/19/09 2.24 J <1.4 <1.4 <1.4 <1.4 3.38 J <1.4 <1.4 <1.4 1.4 25
06/23/10 22.3 J 1.82 J <1.4 <1.4 <1.4 <1.4 <1.4 1.42 J 10.9 J 1.4 25
11/17/10 7.64 J <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 <1.4 32.3 1.4 25
05/24/11 6.8 J 2.44 J <1.4 1.6 J <1.4 <1.4 <1.4 4.05 J <1.4 1.4 25
11/17/11 3.23 J <1.4 <1.4 3.43 J <1.4 1.8 J 9.55 J 1.4 25
06/05/12 10.4 J <1.4 <1.4 2.11 J <1.4 2.75 J <1.4 <1.4 1.4 25
11/14/12 1.76 J <1.4 <1.4 <1.4 <1.4 <1.4 1.4 25
05/13/13 1.81 J <1.4 <1.4 <1.4 4.28 J <1.4 1.4 25
11/12/13 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 25
05/14/14 <1.40 <1.40 <1.40 4.00 J <1.40 <1.40 1.40 25
11/11/14 <1.40 <1.40 <1.40 3.70 J <1.40 <1.40 1.40 25
05/13/15 <1.40 <1.40 <1.40 3.13 J <1.40 <1.40 1.40 25
11/10/15 1.60 J 1.51 J <1.40 3.26 J <1.40 <1.40 1.40 25
05/18/16 <1.40 <1.40 <1.40 3.06 J <1.40 <1.40 1.40 25
11/15/16 1.58 J <1.40 <1.40 4.17 J <1.40 <1.40 1.40 25
05/30/17 <1.40 <1.40 <1.40 1.42 J <1.40 <1.40 1.40 25
11/14/17 <1.40 <1.40 <1.40 1.75 J <1.40 <1.40 1.40 25
05/14/18 <1.40 <1.40 <1.40 4.65 J <1.40 <1.40 1.40 25
11/14/18 1.72 J <1.40 <1.40 5.42 J <1.40 <1.40 1.40 10
05/20/19 <1.40 <1.40 <1.40 4.22 J <1.40 <1.40 1.40 10
11/20/19 <1.40 <1.40 <1.40 2.12 J <1.40 <1.40 1.40 10
05/19/20 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
11/17/20 <1.40 <1.40 <1.40 <1.40 <1.40 <1.40 1.40 10
05/18/21 <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
11/08/22 1.2 J <1.0 <1.0 4.7 J <1.0 <1.0 1.0 10
05/02/23 1.3 J <1.0 <1.0 1.9 J <1.0 <1.0 1.0 10
11/20/23 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
zinc 04/17/90
MCL = ♦07/11/91
FBAC = 22.7 05/28/92
NCGQS = 1,000 (2L Std)06/30/93
2L Std = 1,050 (pre- Jan. 2010)11/04/94
2L Std = 1,000 (Jan. 2010)12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 28.1 B 14.8 B 20.7 B 21.6 B 37.7 B 44 B 20.2 B 2.7 10 t
12/12/07 20.9 B 17.2 B 12.4 B 21.2 B 19.9 B 52.7 165 2.7 10 t,i
06/11/08 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 <2.7 2.7 10
11/06/08 8.1 JB 12.4 B <2.7 13.2 B 7.7 JB 6.5 JB 28.4 B 13.6 B 2.7 10 i
05/20/09 14.2 15 <3.4 4.8 J 35.5 15.9 <3.4 33.2 12.3 3.4 10
11/19/09 11.1 11.6 <3.8 9.22 J 19.9 12.7 <3.8 24.8 9.16 J 3.8 10
06/23/10 82 9.32 J 6.9 J 4.9 J 8.01 J 10.3 <3.8 25.7 61.5 3.8 10
11/17/10 26.6 4.21 J 3.83 J 4.47 J 4.24 J 5.11 J <3.8 28.3 206 3.8 10
05/24/11 27.7 6.55 J 4.01 J 4.88 J 4.18 J <3.8 <3.8 37.7 11.3 3.8 10
11/17/11 13.8 4.42 J <3.8 11.4 <3.8 22.5 40.6 3.8 10
06/05/12 45.2 <3.8 <3.8 9.07 J <3.8 32.7 10.8 12.3 3.8 10
11/14/12 17 <3.8 4.02 J 24.8 22.7 18.3 3.8 10
05/13/13 8.63 J <3.8 <3.8 19.5 26.9 14.3 3.8 10
11/12/13 7.24 J 4.06 J <3.80 19.9 <3.80 14.9 3.80 10
05/14/14 7.44 J <3.80 6.72 J 36.1 <3.80 18.8 3.80 10
11/11/14 14.6 10.8 8.55 J 38.9 <3.80 18.2 3.80 10
05/13/15 9.30 J 4.16 J 6.52 J 40.6 <3.80 20.6 3.80 10
11/10/15 7.09 J <3.80 <3.80 36.8 <3.80 21.0 3.80 10
05/18/16 7.44 J <4.40 <4.40 52.4 <4.40 13.2 4.40 10
11/15/16 7.72 J <4.40 <4.40 54.8 <4.40 16.5 4.40 10
05/30/17 6.74 J <4.40 <4.40 40.5 <4.40 19.9 4.40 10
11/14/17 10.0 <4.40 <4.40 35.1 <4.40 15.0 4.40 10
05/14/18 7.37 J <4.40 <4.40 57.1 <4.40 11.2 4.40 10
11/14/18 8.68 J <4.40 <4.40 54.6 <4.40 15.0 4.40 10
05/20/19 8.94 J <4.40 4.62 J 59.4 <4.40 7.43 J 4.40 10
11/20/19 11.7 4.78 J 5.63 J 40.4 <4.40 13.9 4.40 10
05/19/20 11.1 <4.40 <4.40 44.5 <4.40 8.91 J 4.40 10
11/17/20 7.49 J <4.40 <4.40 34.8 <4.40 16.1 4.40 10
05/18/21 10.3 <4.40 <4.40 39.0 <4.40 13.1 4.40 10
11/23/21 9.91 J <4.40 <4.40 29.7 <4.40 24.8 4.40 10
05/23/22 9.03 J 4.79 J <4.40 47.1 <4.40 17.7 4.40 10
11/08/22 11 J <8.7 <8.7 59 <8.7 29 8.7 20
05/02/23 <8.7 <8.7 <8.7 43 <8.7 <8.7 8.7 20
11/20/23 <10.0 <10.0 <10.0 50.2 <10.0 18.0 10
INORGANIC CONSTITUENTS: TOTAL METALS
HISTORY OF CHEMICAL ANALYSIS
FACILITY: ACTIVE C&D FACILITY
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-211RMW-210Sample Date MW-4 MW-204DMW-5 MW-110S MW-110D MW-204SMW-201RConstituent MDL MRLMW-209 MW-210D
Revised FBAC values submitted for NCDEQ approval in November 2019.
Empty cells indicate data not available.
Upgradient well shaded yellow.
Blue bolded values indicate concentrations that exceeded the FBAC.
Red bolded values indicate concentrations that exceeded the NCGQS.
Green bolded cells indicate concentrations that were greater than the Method Detection Limit (>MDL) but <SWSL,
or >MDL but <Method Reporting Limit, if no SWSL.
All results in µg/L
B - detect associated with blank contamination J - concentration is estimated
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 d - duplicates beyond limits
ss - surrogate spikes beyond limits is - internal standard beyond limits
sd - serial dilution beyond limits ms - matrix spike beyond limits
ics - interference check sample beyond limits lcs – laboratory control sample beyond limits
q – reporting limit standard beyond limits msd - matrix spike duplicate beyond limits
FBAC – facility background NCGQS - Groundwater Standard, as established by the NCDEQ
SWSL - solid waste section limit, as established by NCDEQ SPL – statistical prediction limit
GWPS - ground water protection standard SWSL eliminated in 2019 and replaced with Method Reporting Limit
NE - Not Established
HISTORY OF CHEMICAL ANALYSIS
CLIENT: THE COUNTY OF ORANGE
FACILITY: ORANGE COUNTY REGIONAL LANDFILL - NORTH FACILITY
INORGANIC CONSTITUENTS: TOTAL METALS
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 6: General Chemistry
alkalinity 04/17/90
MCL = ♦07/11/91
FBAC = ♦05/28/92
NCGQS = ♦06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 21000 29000 42000 95000 162000 59000 74000 1000
12/12/07 19800 29700 18700 150000 150000 63800 39600 1000
06/11/08 23100 45100 33000 48400 163000 169000 68200 189000 1000 t
11/06/08 22000 B 59400 B 33000 B 4400 B 169000 165000 55000 B 189000 1000 f
05/20/09 17000 23000 31000 45000 36000 160000 160000 46000 140000 8300
11/19/09 24000 33000 25000 62000 34000 190000 160000 43000 120000 8300
06/23/10 27000 30000 37000 49000 170000 180000 160000 66000 120000 8000
11/17/10 16000 150000 30000 43000 260000 150000 160000 52000 91000 8000
05/24/11 24000 63000 40000 46000 200000 180000 160000 61000 140000 12000
11/17/11 15000 54000 22000 190000 160000 54000 91000 12000
06/06/12 22000 34000 47000 180000 160000 73000 140000 <12000 12000
11/14/12 23000 31000 250000 73000 120000 30000 12000
05/13/13 27000 34000 180000 91000 160000 25000 14000
11/12/13 22000 32000 200000 95000 190000 28000 14000
05/13/14 21000 38000 310000 89000 190000 17000 140000
11/11/14 27000 42000 380000 99000 220000 35000 14000
05/13/15 27000 38000 330000 100000 180000 D 28000 14000
11/10/15 21000 28000 280000 78000 180000 D 34000 14000
05/18/16 23000 26000 350000 93000 180000 20000 14000
11/15/16 27000 37000 340000 99000 200000 D 51000 14000/28000/70000
05/30/17 26000 35000 260000 86000 190000 D 43000 14000/28000/70000
11/14/17 24000 39000 360000 89000 200000 D 35000 70000
05/14/18 24000 41000 210000 89000 180000 D 73000 14000/28000/70000
11/14/18 14000 J 26000 260000 84000 180000 D 58000 14000
05/20/19 27000 36000 300000 58000 190000 46000 28000
11/20/19 22000 37000 380000 D 71000 210000 D 54000 14000/28000
05/19/20 <14000 22000 220000 D 55000 180000 D 86000 14000/28000
11/17/20 21000 33000 150000 D 64000 180000 D 99000 14000/140000
05/18/21 30000 39000 300000 D 58000 190000 D 66000 14000/70000
11/23/21 20000 36000 180000 D 72000 180000 D 53000 14000/70000
05/23/22 26000 35000 250000 D 60000 190000 D 68000 14000/70000
11/08/22 32000 44000 280000 80000 190000 59000 5000
05/02/23 32000 37000 170000 83000 190000 130000 5000
11/20/23 30300 44000 305000 82800 197000 67500 5000
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-110S
HISTORY OF CHEMICAL ANALYSIS
INORGANIC CONSTITUENTS: GENERAL CHEMISTRY
Constituent Sample Date MDLMW-204SMW-110D MW-204D SWSL/MRLMW-5 MW-209 MW-210DMW-4 MW-201R MW-211RMW-210
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-110S
HISTORY OF CHEMICAL ANALYSIS
INORGANIC CONSTITUENTS: GENERAL CHEMISTRY
Constituent Sample Date MDLMW-204SMW-110D MW-204D SWSL/MRLMW-5 MW-209 MW-210DMW-4 MW-201R MW-211RMW-210
chloride 04/17/90
MCL = ♦07/11/91
FBAC = ♦05/28/92
NCGQS = 250000 (2L Std) 06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 4000 2500 2500 5500 2500 6000 122000 1000
12/12/07 6500 B 5000 B 5000 B 33500 4000 B 5500 B 70500 1000 t, f
06/11/08 5500 7000 3500 3500 7000 3000 7500 80500 1000
11/06/08 7000 B 7500 B 5000 B 3000 B 6000 B 3500 B 7500 B 150000 1000 t, f
05/20/09 5700 5200 3500 J 3400 J 16000 14000 4300 J 9200 200000 18
11/19/09 6100 B 4800 JB 3600 JB 3600 JB 6400 B 19000 4200 JB 9000 B 140000 18 f
06/23/10 5800 5700 3800 J 3700 J 6400 25000 4400 J 11000 310000 18
11/17/10 6000 B 4800 JB 3400 JB 3400 JB 6400 B 12000 3900 JB 13000 140000 18 i
05/24/11 6000 B 5200 B 3400 JB 3400 JB 5000 B 16000 B 3800 B 10000 250000 47 i
11/17/11 5900 B 3000 JB 3000 JB 11000 3300 JB 9900 140000 47 i
06/06/12 6000 B 3000 JB 2900 JB 14000 B 3400 JB 8900 B 440000 B 3200 JB 430 i
11/14/12 6200 B 3000 JB 22000 9300 270000 3300 JB 430 i
05/13/13 6700 3200 J 7900 9700 14000 3500 J 2200
11/12/13 6000 3000 J 6000 11000 17000 3300 J 2200
05/13/14 5800 3300 J 34000 9900 16000 3600 J 2200
11/11/14 6100 3100 J 33000 9300 18000 3400 J 2200
05/13/15 6900 3600 J 38000 14000 17000 4000 J 2200
11/10/15 5900 2400 J 25000 15000 18000 2500 J 2200
05/18/16 4700 J 2400 J 41000 16000 15000 2800 J 2200
11/15/16 5500 2500 J 37000 16000 17000 2600 J 2200
05/30/17 6000 <2200 25000 14000 12000 2500 J 2200
11/14/17 6300 2200 J 41000 16000 12000 2500 J 2200
05/14/18 6400 2500 J 20000 14000 11000 2700 J 2200
11/14/18 6500 2400 J 24000 15000 12000 2300 J 2200
05/20/19 5100 2300 J 36000 14000 14000 2600 J 2200
11/20/19 5900 <2200 47000 13000 14000 2800 J 2200
05/19/20 6300 3400 J 20000 13000 13000 91000 2200
11/17/20 7200 3400 J 13000 11000 13000 3800 2200
05/18/21 11000 3700 J 40000 10000 15000 4100 J 2200
11/23/21 7300 3500 J 25000 <2200 15000 4200 J 2200
05/23/22 6600 3300 J 29000 8800 9700 3800 J 2200
11/08/22 <44000 D 3300 J 33000 9200 13000 6300 2200
05/02/23 8200 2500 J 3400 9600 12000 2200 2000
11/20/23 8000 2300 38600 11100 15400 3300 1000
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-110S
HISTORY OF CHEMICAL ANALYSIS
INORGANIC CONSTITUENTS: GENERAL CHEMISTRY
Constituent Sample Date MDLMW-204SMW-110D MW-204D SWSL/MRLMW-5 MW-209 MW-210DMW-4 MW-201R MW-211RMW-210
sulfate 04/17/90
MCL = ♦07/11/91
FBAC = 250000 (SWSL)05/28/92
NCGQS = 250000 (2L Std) 06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 <5000 6300 J 9700 J 10300 J 11400 J 37000 J 453000 5000 250000
12/12/07 <5000 5750 J 6850 J 16200 J 11400 J 39800 J 147000 J 5000 250000
06/11/08 <10000 <10000 52600 J 13600 J <10000 50000 J 674000 10000 250000
11/06/08 <10000 <10000 <10000 21200 J 11600 J 11500 J 44600 J 54000 J 10000 250000
05/20/09 <78 2700 J 2600 J 5000 J 5500 J 11000 J 8900 J 41000 J 600000 78 250000
11/19/09 2000 J 2600 J 3200 JB 4900 JB 4800 JB 13000 J 8300 JB 42000 J 330000 78 250000 f
06/23/10 <120 2800 J 2500 J 4500 J 13000 J 13000 J 8500 J 46000 J 910000 120 250000
11/17/10 1900 J 2300 J 3200 J 4600 J 7800 J 23000 J 8200 J 44000 J 370000 120 250000
05/24/11 1900 J 2700 J 2800 J 4600 J 12000 J 12000 J 8300 J 39000 J 710000 20 250000
11/17/11 2000 J 4700 J 3300 J 10000 J 7700 J 40000 J 360000 20 250000
06/06/12 1900 J 3000 J 4600 J 11000 J 8400 J 39000 J 1100000 3700 J 40 250000
11/14/12 2000 J 3200 JB 13000 J 39000 J 640000 4000 JB 40 250000 i
05/13/13 2100 JB 3000 JB 9000 JB 41000 JB 40000 JB 3500 JB 40 250000 i
11/12/13 <2900 2900 J <2900 37000 J 16000 J 3600 J 2900 250000
05/13/14 <2900 <2900 16000 J 40000 J 17000 J 3300 J 2900 250000
11/11/14 <2900 3500 J 17000 J 40000 J 19000 J 3600 J 2900 250000
05/13/15 <2900 <2900 17000 J 41000 J 16000 J 3500 J 2900 250000
11/10/15 <2900 <2900 16000 J 38000 J 19000 J 4000 J 2900 250000
05/18/16 <2900 2900 J 19000 J 37000 J 16000 J 3100 J 2900 250000
11/15/16 <2900 <2900 16000 J 34000 J 17000 J 3700 J 2900 250000
05/30/17 <2900 <2900 13000 J 33000 J 10000 J 4700 J 2900 250000
11/14/17 <2900 <2900 16000 J 34000 J 11000 J <2900 2900 250000
05/14/18 <2900 <2900 11000 J 37000 J 9000 J 3300 J 2900 250000
11/14/18 <2900 <2900 14000 43000 9700 4400 J 2900 5000
05/20/19 <2900 <2900 16000 38000 13000 <2900 2900 5000
11/20/19 <2900 <2900 16000 36000 14000 <2900 2900 5000
05/19/20 <2900 2900 J 13000 41000 11000 73000 2900 5000
11/17/20 <2900 2900 J 11000 36000 11000 9500 2900 5000
05/18/21 6400 2900 J 18000 38000 15000 5400 2900 5000
11/23/21 <2900 3400 J 12000 25000 14000 4300 J 2900 5000
05/23/22 <2900 <2900 13000 33000 8900 6600 2900 5000
11/08/22 67000 3400 J 14000 33000 12000 5700 2900 5000
05/02/23 <4000 1200 7600 37000 9400 7300 2900 5000
11/20/23 <1000 2200 15700 31100 13900 4200 1000
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-110S
HISTORY OF CHEMICAL ANALYSIS
INORGANIC CONSTITUENTS: GENERAL CHEMISTRY
Constituent Sample Date MDLMW-204SMW-110D MW-204D SWSL/MRLMW-5 MW-209 MW-210DMW-4 MW-201R MW-211RMW-210
total dissolved solids 04/17/90
MCL = ♦07/11/91
FBAC = ♦05/28/92
NCGQS = 500000 (2L Std) 06/30/93
11/04/94
12/20/94
02/02/95
03/13/95
05/18/95
07/20/95
11/15/95
11/28/95
02/28/96
07/25/96
08/27/96
02/25/97
09/03/97
03/25/98
05/04/98
11/02/98
04/26/99
11/22/99
05/23/00
11/29/00
05/30/01
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
06/06/05
11/02/05
11/09/05
05/23/06
11/17/06
06/13/07 62000 83000 100000 131000 232000 132000 901000 5000
12/12/07 53000 98000 98000 295000 214000 153000 475000 5000
06/11/08 76000 129000 90000 110000 228000 228000 165000 1180000 5000
11/06/08 67000 B 73000 B 61000 B 73000 B 186000 B 187000 B 106000 B 911000 5000 f
05/20/09 60000 68000 84000 120000 100000 230000 200000 140000 1500000 10000
11/19/09 12000 B 14000 B <10000 66000 <10000 240000 170000 100000 840000 10000 f
06/23/10 76000 64000 74000 98000 250000 280000 210000 190000 2000000 10000
11/17/10 44000 160000 72000 86000 290000 240000 180000 160000 1600000 10000
05/24/11 <10000 44000 64000 120000 250000 310000 190000 140000 1700000 10000
11/17/11 44000 34000 38000 260000 240000 170000 1000000 10000
06/06/12 200000 52000 82000 410000 370000 390000 2900000 190000 10000
11/14/12 44000 50000 440000 250000 1800000 150000 10000
05/13/13 62000 92000 250000 160000 2000000 78000 10000
11/12/13 28000 50000 280000 200000 280000 34000 10000
05/13/14 42000 56000 420000 200000 250000 22000 10000
11/11/14 48000 62000 460000 190000 260000 30000 10000
05/13/15 <50000 52000 400000 190000 240000 <50000 50000
11/10/15 <50000 50000 380000 190000 270000 <50000 50000
05/18/16 50000 60000 450000 220000 250000 <50000 50000
11/15/16 <50000 50000 380000 140000 170000 64000 50000
05/30/17 <50000 72000 350000 170000 270000 74000 50000
11/14/17 <50000 66000 440000 150000 210000 <50000 50000
05/14/18 <50000 <50000 270000 190000 210000 66000 50000
11/14/18 <50000 58000 310000 240000 220000 78000 50000
05/20/19 52000 74000 410000 200000 270000 62000 50000
11/20/19 52000 94000 550000 210000 290000 94000 50000
05/19/20 <50000 96000 310000 230000 290000 86000 50000
11/17/20 80000 98000 250000 260000 130000 150000 50000
05/18/21 54000 80000 410000 170000 250000 84000 10000
11/23/21 56000 <10000 340000 260000 290000 140000 10000
05/23/22 72000 68000 270000 190000 240000 100000 10000
11/08/22 76000 100000 400000 190000 280000 100000 50000
05/02/23 <50000 100000 200000 220000 210000 96000 50000
11/20/23 68000 H1 78000 H1 412000 176000 276000 110000 25000
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
QA/QCMW-110S
HISTORY OF CHEMICAL ANALYSIS
INORGANIC CONSTITUENTS: GENERAL CHEMISTRY
Constituent Sample Date MDLMW-204SMW-110D MW-204D SWSL/MRLMW-5 MW-209 MW-210DMW-4 MW-201R MW-211RMW-210
All results in µg/L.
Empty cells indicate data not available.
Upgradient wells shaded yellow.
Blue bolded values indicate concentrations that exceeded the FBAC.
Red bolded values indicate concentrations that exceeded the NCGQS.
Green bolded cells indicate concentrations that were >MDL but <SWSL,
or >MDL but <Method Reporting Limit, if no SWSL.
SWSL eliminated in 2019 and replaced with reporting limit LOQ
B - detect associated with blank contamination J - concentration is estimated
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 d - duplicates beyond limits
ss - surrogate spikes beyond limits is - internal standard beyond limits
sd - serial dilution beyond limits ms - matrix spike beyond limits
ics - interference check sample beyond limits lcs – laboratory control sample beyond limits
q – reporting limit standard beyond limits msd - matrix spike duplicate beyond limits
FBAC – facility background NCGQS - Groundwater Standard, as established by the NCDEQ
SWSL - solid waste section limit, as established by NCDEQ SPL – statistical prediction limit
GWPS - ground water protection standard SWSL eliminated in 2019 and replaced with Method Reporting Limit
H1 - Analysis conducted outside the EPA method holding time
INORGANIC CONSTITUENTS: GENERAL CHEMISTRY
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
pH (standard units)06/23/10 6.03 NM 6.73 6.49 NM 6.29 7.51 6.33 6.14
11/17/10 6.13 6.13 6.09 6.38 NM 6.13 6.2 6.13 6.08
05/24/11 5.85 5.83 6.21 NM 6.28 7.26 6.28 6.13
11/15/11 5.58 5.79 6.18 6.46 7.27 6.13 5.92
06/06/12 5.18 5.68 6.16 6.32 7.3 6.39 6.12 5.18
11/14/12 5.42 5.81 6.25 6.18 6.37 6.07
05/13/13 5.28 5.28 5.80 6.23 6.10 5.86 4.87
11/12/13 5.26 5.20 5.78 6.39 6.53 7.23 5.58
05/13/14 4.51 5.73 6.01 6.09 6.54 7.10 5.29
11/11/14 5.60 5.68 6.04 6.02 6.37 7.04 5.21
05/13/15 5.73 5.48 5.92 6.19 6.64 7.24 5.21
11/10/15 5.72 7.90 8.38 6.28 6.50 7.21 5.06
05/18/16 5.77 6.15 6.59 6.34 6.70 7.38 5.73
11/15/16 5.89 5.80 6.31 6.23 6.53 7.22 5.68
05/30/17 5.63 5.69 6.12 5.99 6.26 7.16 5.33
11/14/17 5.60 5.60 6.17 6.21 6.31 7.14 5.27
05/14/18 4.96 5.47 5.91 6.16 6.20 7.19 5.44
11/14/18 6.87 6.84 7.24 7.14 7.32 8.17 6.80
05/20/19 5.87 6.01 6.35 6.18 6.46 7.29 5.79
11/20/19 5.61 5.70 6.00 6.00 6.19 7.06 5.31
05/19/20 5.48 5.27 5.76 6.04 6.19 6.96 5.34
11/17/20 5.59 5.80 6.17 6.31 6.24 7.22 5.64
05/18/21 5.32 5.38 5.84 5.85 6.09 7.05 5.40
11/23/21 5.58 5.90 6.25 6.11 6.43 7.21 5.52
05/23/22 5.64 5.63 5.99 6.06 6.31 7.23 5.59
11/08/22 5.67 5.68 6.05 6.01 6.24 7.04 5.31
05/03/23 5.11 6.26 6.31 7.82 6.91 7.85 6.65
11/20/23 5.48 5.52 5.64 5.89 6.02 7.02 5.29
average = 5.58 5.85 6.23 6.26 7.11 6.38 6.05 7.24 5.50
standard deviation = 0.42 0.55 0.53 0.39 0.52 0.27 0.11 0.28 0.45
Temperature (degrees C)06/23/10 17.50 NM 15.90 16.40 NM 16.60 14.90 16.90 17.00
11/17/10 15.30 17.20 15.70 15.50 NM 15.90 15.00 16.90 16.30
05/24/11 16.10 15.60 16.30 NM 14.80 14.72 15.57 14.90
11/15/11 15.92 15.89 15.76 14.58 14.72 16.36 15.95
06/06/12 15.80 15.70 15.90 14.80 14.50 15.70 15.40 16.10
11/14/12 15.62 15.61 15.33 15.23 16.70 16.31
05/13/13 15.50 15.72 16.00 13.27 14.47 13.64 15.89
11/12/13 15.51 15.63 16.06 16.15 16.74 15.65 16.38
05/13/14 16.10 15.60 15.80 16.10 14.60 14.60 15.70
11/11/14 15.67 15.42 15.31 16.29 17.04 16.10 16.40
05/13/15 16.27 15.31 15.65 13.46 14.61 14.40 15.58
11/10/15 15.63 15.48 15.40 15.79 16.96 15.61 16.50
05/18/16 15.63 15.36 15.30 13.81 15.11 14.62 15.78
11/15/16 15.5 15.4 15.2 16.5 17.5 16.1 16.5
05/30/17 15.9 15.6 15.6 14.6 15.9 16.3 16.2
11/14/17 16.4 16.4 15.5 15.5 17.4 15.8 16.7
05/14/18 16.0 16.2 15.8 13.9 14.8 15.4 16.2
11/14/18 15.7 15.5 15.3 16.5 17.2 15.9 16.6
05/20/19 16.2 15.6 15.6 14.1 15.4 15.3 16.4
11/20/19 15.6 15.7 15.5 16.2 17.4 16.0 17.1
05/19/20 15.9 15.5 15.4 13.9 15.7 14.8 16.6
11/17/20 16.0 15.5 15.4 16.5 18.0 16.3 17.5
05/18/21 16.0 15.6 15.6 13.6 16.0 14.9 16.7
11/23/21 15.9 15.4 15.2 15.5 16.8 15.8 17.0
05/23/22 16.3 15.5 15.5 14.4 16.9 15.2 16.6
11/08/22 16.3 15.6 15.5 16.3 17.7 16.2 16.9
05/03/23 15.1 15.5 15.5 14.8 15.6 14.9 16.4
11/20/23 15.4 15.6 15.4 16.1 17.1 15.8 16.6
average = 15.88 15.63 15.60 15.19 14.77 16.32 15.64 15.51 16.45
standard deviation = 0.46 0.24 0.31 1.08 0.19 1.03 1.11 0.61 0.46
MW-110DConstituentSample Date MW-4 MW-5 MW-110S MW-211R
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
INDICATOR PARAMETERS
MW-201R MW-204S MW-204D MW-209 MW-210DMW-210

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 6: Indicator Parameters
MW-110DConstituentSample Date MW-4 MW-5 MW-110S MW-211R
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
INDICATOR PARAMETERS
MW-201R MW-204S MW-204D MW-209 MW-210DMW-210
Specific Conductance (mS/cm)06/23/10 0.065 NM 0.075 0.120 NM 0.445 0.313 0.279 2.690
11/17/10 0.063 0.323 0.074 0.105 NM 0.362 0.300 0.258 1.354
05/24/11 0.070 0.080 0.121 NM 0.414 0.322 0.256 2.297
11/15/11 0.064 0.074 0.110 0.328 0.259 0.210 1.050
06/06/12 0.070 0.080 0.111 0.417 0.320 0.269 3.398 0.062
11/14/12 0.073 0.084 0.130 0.581 0.281 2.338
05/13/13 0.072 0.080 0.126 0.360 0.290 2.543 0.063
11/12/13 0.072 0.080 0.123 0.438 0.336 0.470 0.085
05/13/14 0.081 0.084 0.128 0.748 0.310 0.456 0.066
11/11/14 0.075 0.088 0.131 0.831 0.314 0.484 0.084
05/13/15 0.076 0.086 0.139 0.740 0.324 0.454 0.072
11/10/15 0.076 0.086 0.142 0.701 0.331 0.479 0.085
05/18/16 0.078 0.086 0.138 0.788 0.325 0.447 0.072
11/15/16 0.074 0.087 0.141 0.764 0.306 0.444 0.104
05/30/17 0.076 0.087 0.145 0.623 0.306 0.422 0.108
11/14/17 0.089 0.089 0.150 0.815 0.305 0.410 0.090
05/14/18 0.082 0.104 0.161 0.558 0.329 0.437 0.190
11/14/18 0.081 0.087 0.145 0.569 0.326 0.427 0.151
05/20/19 0.084 0.098 0.154 0.751 0.305 0.456 0.122
11/20/19 0.067 0.096 0.152 0.913 0.291 0.444 0.124
05/19/20 0.079 0.086 0.142 0.456 0.287 0.404 0.141
11/17/20 0.078 0.087 0.144 0.415 0.279 0.404 0.232
05/18/21 0.085 0.092 0.153 0.714 0.276 0.442 0.156
11/23/21 0.082 0.093 0.131 0.512 0.250 0.440 0.131
05/23/22 0.086 0.093 0.153 0.600 0.283 0.436 0.176
11/08/22 0.083 0.094 0.156 0.652 0.257 0.416 0.142
05/03/23 0.077 0.074 0.120 0.310 0.244 0.367 0.220
11/20/23 0.087 0.096 0.126 0.637 0.245 0.434 0.146
average = 0.077 0.086 0.136 0.587 0.303 0.288 2.239 0.437 0.123
standard deviation = 0.007 0.008 0.015 0.173 0.026 0.032 0.801 0.027 0.049
Dissolved Oxygen (%)06/23/10 63.1 NM 33.8 18.5 NM 12.7 5.7 5.4 10.4
11/17/10 66.5 49.3 31.1 21.2 NM 19.6 6.1 4.7 20.3
05/24/11 103.0 24.8 13.4 NM 25.6 21.0 0.9 1.6
11/15/11 68.8 24.6 10.4 15.9 8.6 12.6 5.8
06/06/12 77.8 20.0 51.7 19.8 2.0 1.5 8.7 5.7
11/14/12 63.6 15.5 13.2 12.0 6.7 2.6
05/13/13 62.4 18.3 14.5 15.5 75.2 22.2 6.8
11/12/13 63.7 20.3 20.5 19.8 8.8 2.2 10.0
05/13/14 60.7 19.0 1.8 28.5 0.8 1.2 1.4
11/11/14 59.5 15.7 3.2 8.0 9.4 6.8 4.4
05/13/15 69.0 40.1 22.2 26.8 30.1 19.9 29.6
11/10/15 71.0 27.0 7.1 47.7 15.8 21.8 14.3
05/18/16 57.3 53.5 1.2 7.4 3.0 2.4 1.9
11/15/16 60.7 16.9 -0.3 1.5 1.3 5.9 -1.1
05/30/17 63.7 18.9 0.7 3.3 1.6 6.6 2.5
11/14/17 17.0 17.0 1.9 16.5 6.4 4.6 4.2
05/14/18 60.6 22.7 5.2 7.3 5.0 13.6 4.6
11/14/18 56.4 18.6 -1.4 1 -0.9 9.1 -2.2
05/20/19 63.1 22.2 -0.5 0.8 -0.4 5.1 -0.9
11/20/19 58.2 14.7 0.6 11.4 4.0 13.3 0.1
05/19/20 62.3 23.7 1.0 2.3 0.8 14.4 0.6
11/17/20 55.5 21.0 1.1 4.2 1.8 15.9 0.6
05/18/21 61.7 22.7 1.9 3.1 1.9 12.0 1.7
11/23/21 56.0 18.2 3.7 7.6 19.5 18.3 3.7
05/23/22 54.4 15.6 -3.9 -2.7 -3.1 9.2 -3.8
11/08/22 53.0 16.7 0.0 14.7 0.9 14.4 -0.8
DO % calculated from mg/L (mg/L/9.3)05/03/23 50.0 20.1 3.0 20.2 10.1 30.2 13.5
11/20/23 57.8 21.0 14.0 14.0 10.4 23.0 8.0
average = 61.31 22.63 8.07 13.02 8.68 8.36 10.23 11.90 4.56
standard deviation = 13.06 8.39 11.49 10.87 7.28 14.88 8.16 7.74 7.19
MW-110DConstituentSample Date MW-4 MW-5 MW-110S MW-211R
CLIENT: ORANGE COUNTY SOLID WASTE MANAGEMENT
FACILITY: ACTIVE C&D FACILITY
LOCATION: CHAPEL HILL, NORTH CAROLINA
PROJECT: GROUNDWATER MONITORING PROGRAM
HISTORY OF CHEMICAL ANALYSIS
INDICATOR PARAMETERS
MW-201R MW-204S MW-204D MW-209 MW-210DMW-210
Turbidity (NTUs)06/23/10 178 NM 18 33 NM 70 13.7 52 126
11/17/10 38 48 4 30 NM 189 5 21 740
05/24/11 39.7 5 91 NM 38 7 75 40
11/15/11 14.9 9.1 23.4 153 5.6 20.1 145
06/06/12 27.4 2.6 19 171 4.4 34.8 18.5 5.4
11/14/12 9.7 2.3 21 12.7 18.3 44
05/13/13 6.9 4.9 16.4 2.6 6.9 132.0 2.0
11/12/13 6.0 4.7 59.1 1.6 14.9 4.0 0.5
05/13/14 3.7 4.4 15.7 17.3 52.0 0.9 7.6
11/11/14 3.6 6.4 62.7 7.2 46.8 0.7 1.5
05/13/15 1.8 2.5 11.0 28.2 27.1 0.5 2.1
11/10/15 2.8 5.2 4.8 0 35.6 0.0 0
05/18/16 0.8 3.4 6.8 2 39.0 0.0 1.7
11/15/16 1.9 3.9 8.4 7.8 66.60 1.3 1.3
05/30/17 2.7 3.2 8.2 16.6 10.00 21.3 2.6
11/14/17 2.3 2.3 7.6 10.7 14.9 0.4 0.4
05/14/18 0.1 0.1 4.3 3.5 45.1 0.1 0.1
11/14/18 3.0 2.4 4.1 2.3 52.1 7.2 2.4
05/20/19 0.5 1.5 2.7 0.6 16.0 14.2 2.3
11/20/19 8.3 4.8 13.4 2.3 34.0 5.9 3.1
05/19/20 4.6 9.0 44.0
11/17/20 8.8 24.5 9.1 12 52.0 3.5 2.9
05/18/21 10.7 5.9 8.9 3.5 40.0 25.1 11.2
11/23/21 7.3 0.9 7.4 9.1 13.0 2.8 5.2
05/23/22 16.4 4.4 7.0 14.2 49.0 3.7 5.1
11/08/22 8.1 5.1 8.5 24.0 46.0 6.5 3.2
05/03/23 6.15 7.8 8.8 5.9 171.0 2.9 3.8
11/20/23 2.9 6.8 14.0 4.1 4.4 0.92 4.0
average = 15.28 5.38 18.40 29.97 7.14 39.34 177.93 5.10 3.11
standard deviation = 34.14 4.99 20.53 53.11 3.79 31.72 253.05 7.10 2.63
ORP (meV)06/23/10 150.6 NM 69 72 NM 15.9 -88.7 -10.2 72
11/17/10 180 -61.9 91.6 110.7 NM 52.3 -72.1 48.9 138.6
05/24/11 129 102 80 NM 57 -63.8 12.2 125
11/15/11 141 111.3 87.4 89.1 52.2 89.7 101.5
06/06/12 324 187.5 127.9 36.5 -66.6 73.1 143.6 149.8
11/14/12 94 65.4 42.4 0.2 15.3 30.7
05/13/13 267 179.5 102.8 97.8 94.5 149 172.6
11/12/13 262 182.2 113.2 43.3 22.2 -80.8 119.1
05/13/14 174 116.2 83.1 52.0 41.0 -2.4 113.9
11/11/14 223 158.2 128.5 91.7 73.2 9.7 145.3
05/13/15 137 210.1 173.0 123.9 95.4 72.8 181
11/10/15 -18.2 -84.7 -136.7 -91.4 -151.6 -149.2 -162.1
05/18/16 141.5 88.9 88.7 87.5 51.1 38.3 124.7
11/15/16 233 201.6 116.1 88.8 83.20 -28.9 145.0
05/30/17 236.6 243.3 139.3 128 146.00 9.4 150.7
11/14/17 103.0 103.0 64.2 74.9 57.9 -16.6 105.1
05/14/18 -91 -108 -320 -323 -368 -279 -380
11/14/18 326 319 112 68 212 -8.4 96
05/20/19 404 360 223 190 120 65.0 121
11/20/19 34.5 367 314 301 170 116 142
05/19/20 254 336 182 167 49.3 21.9 92
11/17/20 310 282 265 88 94.0 38.0 111
05/18/21 303 273 242 344 62.0 148.0 155
11/23/21 326 175 131 100 121 -9.7 107
05/23/22 164 217 162 158 112 40 108
11/08/22 185 176 103 114 107 -6 24
05/03/23 132 74 38 -8.6 31 -2.4 -3
11/20/23 209 221 241 176 104 36 100
average = 190.50 168.47 110.18 82.91 -47.80 55.58 108.63 0.56 83.40
standard deviation = 110.41 115.79 119.97 117.91 56.73 105.71 43.75 89.25 123.74
All values are last recorded immediately prior to sample collection.
Upgradient wells shaded yellow.
NM - Not Measured; well sampled with Hydrasleeve

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 7: Laboratory Certificates of Analysis, Chains of Custody Quality Control Information

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 7: Active C & D Wells
#=CL#
December 06, 2023
LIMS USE: FR - DEBORAH COAKLEY
LIMS OBJECT ID: 92700200
92700200
Project:
Pace Project No.:
RE:
Deborah Ann Coakley
TRC Companies
1030 Wilmer Ave.
Suite 100
Richmond, VA 23227
OCSWM FALL-C&D
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
[e-mail]
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
[phone]
Page 1 of 36
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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
[phone]
Page 2 of 36
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92700200001 6804-MW209 EPA 6010D 17 PASI-ADBB1
EPA 7470A 1 PASI-ABM
EPA 8260D 51 PASI-CLMB
EPA 8260D Mod.3 PASI-CTEG
SM 2320B-2011 1 PASI-ASMS
SM 2540C-2015 1 PASI-ARVS
EPA 300.0 Rev 2.1 1993 2 PASI-ACDC
92700200002 6804-MW204S EPA 6010D 17 PASI-ADBB1
EPA 7470A 1 PASI-ABM
EPA 8260D 51 PASI-CLMB
EPA 8260D Mod.3 PASI-CTEG
SM 2320B-2011 1 PASI-ASMS
SM 2540C-2015 1 PASI-ARVS
EPA 300.0 Rev 2.1 1993 2 PASI-ACDC
92700200003 6804-MW210D EPA 6010D 17 PASI-ADBB1
EPA 7470A 1 PASI-ABM
EPA 8260D 51 PASI-CLMB
EPA 8260D Mod.3 PASI-CTEG
SM 2320B-2011 1 PASI-ASMS
SM 2540C-2015 1 PASI-ARVS
EPA 300.0 Rev 2.1 1993 2 PASI-ACDC
92700200004 6804-MW211R EPA 6010D 17 PASI-ADBB1
EPA 7470A 1 PASI-ABM
EPA 8260D 51 PASI-CLMB
EPA 8260D Mod.3 PASI-CTEG
SM 2320B-2011 1 PASI-ASMS
SM 2540C-2015 1 PASI-ARVS
EPA 300.0 Rev 2.1 1993 2 PASI-ACDC
92700200005 TRIP BLANK 1 EPA 8260D 51 PASI-CLMB
92700200006 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
[phone]
Page 3 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW209 Lab ID: 92700200001 Collected: 11/21/23 09:10 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 22:18 7440-36-011/28/23 12:305.0 1
Arsenic ND ug/L 12/04/23 22:18 7440-38-211/28/23 12:3010.0 1
Barium 19.1 ug/L 12/04/23 22:18 7440-39-311/28/23 12:305.0 1
Beryllium ND ug/L 12/04/23 22:18 7440-41-711/28/23 12:301.0 1
Cadmium ND ug/L 12/04/23 22:18 7440-43-911/28/23 12:301.0 1
Chromium ND ug/L 12/04/23 22:18 7440-47-311/28/23 12:305.0 1
Cobalt ND ug/L 12/04/23 22:18 7440-48-411/28/23 12:305.0 1
Copper ND ug/L 12/04/23 22:18 7440-50-811/28/23 12:305.0 1
Iron 233 ug/L 12/04/23 22:18 7439-89-611/28/23 12:3050.0 1
Lead ND ug/L 12/04/23 22:18 7439-92-111/28/23 12:305.0 1
Manganese 279 ug/L 12/04/23 22:18 7439-96-511/28/23 12:305.0 1
Nickel ND ug/L 12/04/23 22:18 7440-02-011/28/23 12:305.0 1
Selenium ND ug/L 12/04/23 22:18 7782-49-211/28/23 12:3010.0 1
Silver ND ug/L 12/04/23 22:18 7440-22-411/28/23 12:305.0 1
Thallium ND ug/L 12/04/23 22:18 7440-28-011/28/23 12:3010.0 1
Vanadium ND ug/L 12/04/23 22:18 7440-62-211/28/23 12:305.0 1
Zinc 50.2 ug/L 12/04/23 22:18 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 11/28/23 10:55 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 09:34 67-64-125.0 1
Acrylonitrile ND ug/L 12/01/23 09:34 107-13-110.0 1
Benzene ND ug/L 12/01/23 09:34 71-43-21.0 1
Bromochloromethane ND ug/L 12/01/23 09:34 74-97-51.0 1
Bromodichloromethane ND ug/L 12/01/23 09:34 75-27-41.0 1
Bromoform ND ug/L 12/01/23 09:34 75-25-21.0 1
Bromomethane ND ug/L 12/01/23 09:34 74-83-9 IH2.0 1
2-Butanone (MEK)ND ug/L 12/01/23 09:34 78-93-35.0 1
Carbon disulfide ND ug/L 12/01/23 09:34 75-15-02.0 1
Carbon tetrachloride ND ug/L 12/01/23 09:34 56-23-51.0 1
Chlorobenzene ND ug/L 12/01/23 09:34 108-90-71.0 1
Chloroethane ND ug/L 12/01/23 09:34 75-00-31.0 1
Chloroform ND ug/L 12/01/23 09:34 67-66-31.0 1
Chloromethane ND ug/L 12/01/23 09:34 74-87-31.0 1
Dibromochloromethane ND ug/L 12/01/23 09:34 124-48-11.0 1
Dibromomethane ND ug/L 12/01/23 09:34 74-95-31.0 1
1,2-Dichlorobenzene ND ug/L 12/01/23 09:34 95-50-11.0 1
1,4-Dichlorobenzene ND ug/L 12/01/23 09:34 106-46-71.0 1
trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 09:34 110-57-61.0 1
1,1-Dichloroethane ND ug/L 12/01/23 09:34 75-34-31.0 1
1,2-Dichloroethane ND ug/L 12/01/23 09:34 107-06-21.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW209 Lab ID: 92700200001 Collected: 11/21/23 09:10 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
1,1-Dichloroethene ND ug/L 12/01/23 09:34 75-35-41.0 1
cis-1,2-Dichloroethene ND ug/L 12/01/23 09:34 156-59-21.0 1
trans-1,2-Dichloroethene ND ug/L 12/01/23 09:34 156-60-51.0 1
1,2-Dichloropropane ND ug/L 12/01/23 09:34 78-87-51.0 1
cis-1,3-Dichloropropene ND ug/L 12/01/23 09:34 10061-01-51.0 1
trans-1,3-Dichloropropene ND ug/L 12/01/23 09:34 10061-02-61.0 1
Ethylbenzene ND ug/L 12/01/23 09:34 100-41-41.0 1
2-Hexanone ND ug/L 12/01/23 09:34 591-78-65.0 1
Iodomethane ND ug/L 12/01/23 09:34 74-88-420.0 1
Methylene Chloride ND ug/L 12/01/23 09:34 75-09-25.0 1
4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 09:34 108-10-15.0 1
Styrene ND ug/L 12/01/23 09:34 100-42-51.0 1
1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 09:34 630-20-61.0 1
1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 09:34 79-34-51.0 1
Tetrachloroethene ND ug/L 12/01/23 09:34 127-18-41.0 1
Tetrahydrofuran ND ug/L 12/01/23 09:34 109-99-910.0 1
Toluene ND ug/L 12/01/23 09:34 108-88-31.0 1
1,1,1-Trichloroethane ND ug/L 12/01/23 09:34 71-55-61.0 1
1,1,2-Trichloroethane ND ug/L 12/01/23 09:34 79-00-51.0 1
Trichloroethene ND ug/L 12/01/23 09:34 79-01-61.0 1
Trichlorofluoromethane ND ug/L 12/01/23 09:34 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 12/01/23 09:34 96-18-41.0 1
Vinyl acetate ND ug/L 12/01/23 09:34 108-05-42.0 1
Vinyl chloride ND ug/L 12/01/23 09:34 75-01-41.0 1
Xylene (Total)ND ug/L 12/01/23 09:34 1330-20-71.0 1
m&p-Xylene ND ug/L 12/01/23 09:34 179601-23-12.0 1
o-Xylene ND ug/L 12/01/23 09:34 95-47-61.0 1
Surrogates
4-Bromofluorobenzene (S)95 %12/01/23 09:34 460-00-470-130 1
1,2-Dichloroethane-d4 (S)88 %12/01/23 09:34 17060-07-070-130 1
Toluene-d8 (S)100 %12/01/23 09:34 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 11/23/23 06:49 123-91-12.0 1
Surrogates
1,2-Dichloroethane-d4 (S)91 %11/23/23 06:49 17060-07-067-130 1
Toluene-d8 (S)91 %11/23/23 06:49 2037-26-570-130 1
Analytical Method: SM 2320B-2011
Pace Analytical Services - Asheville
2320B Alkalinity
Alkalinity, Total as CaCO3 82.8 mg/L 11/30/23 17:475.0 1
Analytical Method: SM 2540C-2015
Pace Analytical Services - Asheville
2540C Total Dissolved Solids
Total Dissolved Solids 176 mg/L 11/27/23 20:2525.0 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
[phone]
Page 5 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW209 Lab ID: 92700200001 Collected: 11/21/23 09:10 Received: 11/22/23 12:18 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 11.1 mg/L 11/25/23 15:07 16887-00-61.0 1
Sulfate 31.1 mg/L 11/25/23 15:07 14808-79-81.0 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
[phone]
Page 6 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW204S Lab ID: 92700200002 Collected: 11/21/23 10:10 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 22:30 7440-36-011/28/23 12:305.0 1
Arsenic ND ug/L 12/04/23 22:30 7440-38-211/28/23 12:3010.0 1
Barium 29.0 ug/L 12/04/23 22:30 7440-39-311/28/23 12:305.0 1
Beryllium ND ug/L 12/04/23 22:30 7440-41-711/28/23 12:301.0 1
Cadmium ND ug/L 12/04/23 22:30 7440-43-911/28/23 12:301.0 1
Chromium ND ug/L 12/04/23 22:30 7440-47-311/28/23 12:305.0 1
Cobalt ND ug/L 12/04/23 22:30 7440-48-411/28/23 12:305.0 1
Copper ND ug/L 12/04/23 22:30 7440-50-811/28/23 12:305.0 1
Iron 193 ug/L 12/04/23 22:30 7439-89-611/28/23 12:3050.0 1
Lead ND ug/L 12/04/23 22:30 7439-92-111/28/23 12:305.0 1
Manganese 325 ug/L 12/04/23 22:30 7439-96-511/28/23 12:305.0 1
Nickel ND ug/L 12/04/23 22:30 7440-02-011/28/23 12:305.0 1
Selenium ND ug/L 12/04/23 22:30 7782-49-211/28/23 12:3010.0 1
Silver ND ug/L 12/04/23 22:30 7440-22-411/28/23 12:305.0 1
Thallium ND ug/L 12/04/23 22:30 7440-28-011/28/23 12:3010.0 1
Vanadium ND ug/L 12/04/23 22:30 7440-62-211/28/23 12:305.0 1
Zinc ND ug/L 12/04/23 22:30 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 11/28/23 11:01 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 09:53 67-64-125.0 1
Acrylonitrile ND ug/L 12/01/23 09:53 107-13-110.0 1
Benzene ND ug/L 12/01/23 09:53 71-43-21.0 1
Bromochloromethane ND ug/L 12/01/23 09:53 74-97-51.0 1
Bromodichloromethane ND ug/L 12/01/23 09:53 75-27-41.0 1
Bromoform ND ug/L 12/01/23 09:53 75-25-21.0 1
Bromomethane ND ug/L 12/01/23 09:53 74-83-9 IH2.0 1
2-Butanone (MEK)ND ug/L 12/01/23 09:53 78-93-35.0 1
Carbon disulfide ND ug/L 12/01/23 09:53 75-15-02.0 1
Carbon tetrachloride ND ug/L 12/01/23 09:53 56-23-51.0 1
Chlorobenzene ND ug/L 12/01/23 09:53 108-90-71.0 1
Chloroethane ND ug/L 12/01/23 09:53 75-00-31.0 1
Chloroform ND ug/L 12/01/23 09:53 67-66-31.0 1
Chloromethane ND ug/L 12/01/23 09:53 74-87-31.0 1
Dibromochloromethane ND ug/L 12/01/23 09:53 124-48-11.0 1
Dibromomethane ND ug/L 12/01/23 09:53 74-95-31.0 1
1,2-Dichlorobenzene ND ug/L 12/01/23 09:53 95-50-11.0 1
1,4-Dichlorobenzene ND ug/L 12/01/23 09:53 106-46-71.0 1
trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 09:53 110-57-61.0 1
1,1-Dichloroethane ND ug/L 12/01/23 09:53 75-34-31.0 1
1,2-Dichloroethane ND ug/L 12/01/23 09:53 107-06-21.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW204S Lab ID: 92700200002 Collected: 11/21/23 10:10 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
1,1-Dichloroethene ND ug/L 12/01/23 09:53 75-35-41.0 1
cis-1,2-Dichloroethene ND ug/L 12/01/23 09:53 156-59-21.0 1
trans-1,2-Dichloroethene ND ug/L 12/01/23 09:53 156-60-51.0 1
1,2-Dichloropropane ND ug/L 12/01/23 09:53 78-87-51.0 1
cis-1,3-Dichloropropene ND ug/L 12/01/23 09:53 10061-01-51.0 1
trans-1,3-Dichloropropene ND ug/L 12/01/23 09:53 10061-02-61.0 1
Ethylbenzene ND ug/L 12/01/23 09:53 100-41-41.0 1
2-Hexanone ND ug/L 12/01/23 09:53 591-78-65.0 1
Iodomethane ND ug/L 12/01/23 09:53 74-88-420.0 1
Methylene Chloride ND ug/L 12/01/23 09:53 75-09-25.0 1
4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 09:53 108-10-15.0 1
Styrene ND ug/L 12/01/23 09:53 100-42-51.0 1
1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 09:53 630-20-61.0 1
1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 09:53 79-34-51.0 1
Tetrachloroethene ND ug/L 12/01/23 09:53 127-18-41.0 1
Tetrahydrofuran ND ug/L 12/01/23 09:53 109-99-910.0 1
Toluene ND ug/L 12/01/23 09:53 108-88-31.0 1
1,1,1-Trichloroethane ND ug/L 12/01/23 09:53 71-55-61.0 1
1,1,2-Trichloroethane ND ug/L 12/01/23 09:53 79-00-51.0 1
Trichloroethene ND ug/L 12/01/23 09:53 79-01-61.0 1
Trichlorofluoromethane ND ug/L 12/01/23 09:53 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 12/01/23 09:53 96-18-41.0 1
Vinyl acetate ND ug/L 12/01/23 09:53 108-05-42.0 1
Vinyl chloride ND ug/L 12/01/23 09:53 75-01-41.0 1
Xylene (Total)ND ug/L 12/01/23 09:53 1330-20-71.0 1
m&p-Xylene ND ug/L 12/01/23 09:53 179601-23-12.0 1
o-Xylene ND ug/L 12/01/23 09:53 95-47-61.0 1
Surrogates
4-Bromofluorobenzene (S)96 %12/01/23 09:53 460-00-470-130 1
1,2-Dichloroethane-d4 (S)90 %12/01/23 09:53 17060-07-070-130 1
Toluene-d8 (S)100 %12/01/23 09:53 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 07:10 123-91-12.0 1
Surrogates
1,2-Dichloroethane-d4 (S)88 %11/23/23 07:10 17060-07-0 HS67-130 1
Toluene-d8 (S)91 %11/23/23 07:10 2037-26-570-130 1
Analytical Method: SM 2320B-2011
Pace Analytical Services - Asheville
2320B Alkalinity
Alkalinity, Total as CaCO3 305 mg/L 12/01/23 09:045.0 1
Analytical Method: SM 2540C-2015
Pace Analytical Services - Asheville
2540C Total Dissolved Solids
Total Dissolved Solids 412 mg/L 11/27/23 20:2525.0 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
[phone]
Page 8 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW204S Lab ID: 92700200002 Collected: 11/21/23 10:10 Received: 11/22/23 12:18 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 38.6 mg/L 11/25/23 17:42 16887-00-61.0 1
Sulfate 15.7 mg/L 11/25/23 17:42 14808-79-81.0 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
[phone]
Page 9 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW210D Lab ID: 92700200003 Collected: 11/21/23 10:45 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 22:33 7440-36-011/28/23 12:305.0 1
Arsenic ND ug/L 12/04/23 22:33 7440-38-211/28/23 12:3010.0 1
Barium 11.7 ug/L 12/04/23 22:33 7440-39-311/28/23 12:305.0 1
Beryllium ND ug/L 12/04/23 22:33 7440-41-711/28/23 12:301.0 1
Cadmium ND ug/L 12/04/23 22:33 7440-43-911/28/23 12:301.0 1
Chromium ND ug/L 12/04/23 22:33 7440-47-311/28/23 12:305.0 1
Cobalt ND ug/L 12/04/23 22:33 7440-48-411/28/23 12:305.0 1
Copper ND ug/L 12/04/23 22:33 7440-50-811/28/23 12:305.0 1
Iron 53.7 ug/L 12/04/23 22:33 7439-89-611/28/23 12:3050.0 1
Lead ND ug/L 12/04/23 22:33 7439-92-111/28/23 12:305.0 1
Manganese 580 ug/L 12/04/23 22:33 7439-96-511/28/23 12:305.0 1
Nickel ND ug/L 12/04/23 22:33 7440-02-011/28/23 12:305.0 1
Selenium ND ug/L 12/04/23 22:33 7782-49-211/28/23 12:3010.0 1
Silver ND ug/L 12/04/23 22:33 7440-22-411/28/23 12:305.0 1
Thallium ND ug/L 12/04/23 22:33 7440-28-011/28/23 12:3010.0 1
Vanadium ND ug/L 12/04/23 22:33 7440-62-211/28/23 12:305.0 1
Zinc ND ug/L 12/04/23 22:33 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 11/28/23 11:03 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 10:11 67-64-125.0 1
Acrylonitrile ND ug/L 12/01/23 10:11 107-13-110.0 1
Benzene ND ug/L 12/01/23 10:11 71-43-21.0 1
Bromochloromethane ND ug/L 12/01/23 10:11 74-97-51.0 1
Bromodichloromethane ND ug/L 12/01/23 10:11 75-27-41.0 1
Bromoform ND ug/L 12/01/23 10:11 75-25-21.0 1
Bromomethane ND ug/L 12/01/23 10:11 74-83-9 IH2.0 1
2-Butanone (MEK)ND ug/L 12/01/23 10:11 78-93-35.0 1
Carbon disulfide ND ug/L 12/01/23 10:11 75-15-02.0 1
Carbon tetrachloride ND ug/L 12/01/23 10:11 56-23-51.0 1
Chlorobenzene ND ug/L 12/01/23 10:11 108-90-71.0 1
Chloroethane ND ug/L 12/01/23 10:11 75-00-31.0 1
Chloroform ND ug/L 12/01/23 10:11 67-66-31.0 1
Chloromethane ND ug/L 12/01/23 10:11 74-87-31.0 1
Dibromochloromethane ND ug/L 12/01/23 10:11 124-48-11.0 1
Dibromomethane ND ug/L 12/01/23 10:11 74-95-31.0 1
1,2-Dichlorobenzene ND ug/L 12/01/23 10:11 95-50-11.0 1
1,4-Dichlorobenzene ND ug/L 12/01/23 10:11 106-46-71.0 1
trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 10:11 110-57-61.0 1
1,1-Dichloroethane ND ug/L 12/01/23 10:11 75-34-31.0 1
1,2-Dichloroethane ND ug/L 12/01/23 10:11 107-06-21.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW210D Lab ID: 92700200003 Collected: 11/21/23 10:45 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
1,1-Dichloroethene ND ug/L 12/01/23 10:11 75-35-41.0 1
cis-1,2-Dichloroethene ND ug/L 12/01/23 10:11 156-59-21.0 1
trans-1,2-Dichloroethene ND ug/L 12/01/23 10:11 156-60-51.0 1
1,2-Dichloropropane ND ug/L 12/01/23 10:11 78-87-51.0 1
cis-1,3-Dichloropropene ND ug/L 12/01/23 10:11 10061-01-51.0 1
trans-1,3-Dichloropropene ND ug/L 12/01/23 10:11 10061-02-61.0 1
Ethylbenzene ND ug/L 12/01/23 10:11 100-41-41.0 1
2-Hexanone ND ug/L 12/01/23 10:11 591-78-65.0 1
Iodomethane ND ug/L 12/01/23 10:11 74-88-420.0 1
Methylene Chloride ND ug/L 12/01/23 10:11 75-09-25.0 1
4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 10:11 108-10-15.0 1
Styrene ND ug/L 12/01/23 10:11 100-42-51.0 1
1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 10:11 630-20-61.0 1
1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 10:11 79-34-51.0 1
Tetrachloroethene ND ug/L 12/01/23 10:11 127-18-41.0 1
Tetrahydrofuran ND ug/L 12/01/23 10:11 109-99-910.0 1
Toluene ND ug/L 12/01/23 10:11 108-88-31.0 1
1,1,1-Trichloroethane ND ug/L 12/01/23 10:11 71-55-61.0 1
1,1,2-Trichloroethane ND ug/L 12/01/23 10:11 79-00-51.0 1
Trichloroethene ND ug/L 12/01/23 10:11 79-01-61.0 1
Trichlorofluoromethane ND ug/L 12/01/23 10:11 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 12/01/23 10:11 96-18-41.0 1
Vinyl acetate ND ug/L 12/01/23 10:11 108-05-42.0 1
Vinyl chloride ND ug/L 12/01/23 10:11 75-01-41.0 1
Xylene (Total)ND ug/L 12/01/23 10:11 1330-20-71.0 1
m&p-Xylene ND ug/L 12/01/23 10:11 179601-23-12.0 1
o-Xylene ND ug/L 12/01/23 10:11 95-47-61.0 1
Surrogates
4-Bromofluorobenzene (S)94 %12/01/23 10:11 460-00-470-130 1
1,2-Dichloroethane-d4 (S)86 %12/01/23 10:11 17060-07-070-130 1
Toluene-d8 (S)101 %12/01/23 10:11 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 10:23 123-91-12.0 1
Surrogates
1,2-Dichloroethane-d4 (S)88 %11/23/23 10:23 17060-07-067-130 1
Toluene-d8 (S)90 %11/23/23 10:23 2037-26-570-130 1
Analytical Method: SM 2320B-2011
Pace Analytical Services - Asheville
2320B Alkalinity
Alkalinity, Total as CaCO3 197 mg/L 11/30/23 18:275.0 1
Analytical Method: SM 2540C-2015
Pace Analytical Services - Asheville
2540C Total Dissolved Solids
Total Dissolved Solids 276 mg/L 11/27/23 20:3125.0 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
[phone]
Page 11 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW210D Lab ID: 92700200003 Collected: 11/21/23 10:45 Received: 11/22/23 12:18 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 15.4 mg/L 11/25/23 17:56 16887-00-61.0 1
Sulfate 13.9 mg/L 11/25/23 17:56 14808-79-81.0 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
[phone]
Page 12 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW211R Lab ID: 92700200004 Collected: 11/21/23 11:20 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 22:35 7440-36-011/28/23 12:305.0 1
Arsenic ND ug/L 12/04/23 22:35 7440-38-211/28/23 12:3010.0 1
Barium 112 ug/L 12/04/23 22:35 7440-39-311/28/23 12:305.0 1
Beryllium ND ug/L 12/04/23 22:35 7440-41-711/28/23 12:301.0 1
Cadmium ND ug/L 12/04/23 22:35 7440-43-911/28/23 12:301.0 1
Chromium ND ug/L 12/04/23 22:35 7440-47-311/28/23 12:305.0 1
Cobalt 24.2 ug/L 12/04/23 22:35 7440-48-411/28/23 12:305.0 1
Copper ND ug/L 12/04/23 22:35 7440-50-811/28/23 12:305.0 1
Iron 2150 ug/L 12/04/23 22:35 7439-89-611/28/23 12:3050.0 1
Lead ND ug/L 12/04/23 22:35 7439-92-111/28/23 12:305.0 1
Manganese 3640 ug/L 12/04/23 22:35 7439-96-511/28/23 12:305.0 1
Nickel ND ug/L 12/04/23 22:35 7440-02-011/28/23 12:305.0 1
Selenium ND ug/L 12/04/23 22:35 7782-49-211/28/23 12:3010.0 1
Silver ND ug/L 12/04/23 22:35 7440-22-411/28/23 12:305.0 1
Thallium ND ug/L 12/04/23 22:35 7440-28-011/28/23 12:3010.0 1
Vanadium ND ug/L 12/04/23 22:35 7440-62-211/28/23 12:305.0 1
Zinc 18.0 ug/L 12/04/23 22:35 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 11/28/23 11:05 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 10:30 67-64-125.0 1
Acrylonitrile ND ug/L 12/01/23 10:30 107-13-110.0 1
Benzene ND ug/L 12/01/23 10:30 71-43-21.0 1
Bromochloromethane ND ug/L 12/01/23 10:30 74-97-51.0 1
Bromodichloromethane ND ug/L 12/01/23 10:30 75-27-41.0 1
Bromoform ND ug/L 12/01/23 10:30 75-25-21.0 1
Bromomethane ND ug/L 12/01/23 10:30 74-83-9 IH2.0 1
2-Butanone (MEK)ND ug/L 12/01/23 10:30 78-93-35.0 1
Carbon disulfide ND ug/L 12/01/23 10:30 75-15-02.0 1
Carbon tetrachloride ND ug/L 12/01/23 10:30 56-23-51.0 1
Chlorobenzene ND ug/L 12/01/23 10:30 108-90-71.0 1
Chloroethane ND ug/L 12/01/23 10:30 75-00-31.0 1
Chloroform ND ug/L 12/01/23 10:30 67-66-31.0 1
Chloromethane ND ug/L 12/01/23 10:30 74-87-31.0 1
Dibromochloromethane ND ug/L 12/01/23 10:30 124-48-11.0 1
Dibromomethane ND ug/L 12/01/23 10:30 74-95-31.0 1
1,2-Dichlorobenzene ND ug/L 12/01/23 10:30 95-50-11.0 1
1,4-Dichlorobenzene ND ug/L 12/01/23 10:30 106-46-71.0 1
trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 10:30 110-57-61.0 1
1,1-Dichloroethane ND ug/L 12/01/23 10:30 75-34-31.0 1
1,2-Dichloroethane ND ug/L 12/01/23 10:30 107-06-21.0 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW211R Lab ID: 92700200004 Collected: 11/21/23 11:20 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
1,1-Dichloroethene ND ug/L 12/01/23 10:30 75-35-41.0 1
cis-1,2-Dichloroethene ND ug/L 12/01/23 10:30 156-59-21.0 1
trans-1,2-Dichloroethene ND ug/L 12/01/23 10:30 156-60-51.0 1
1,2-Dichloropropane ND ug/L 12/01/23 10:30 78-87-51.0 1
cis-1,3-Dichloropropene ND ug/L 12/01/23 10:30 10061-01-51.0 1
trans-1,3-Dichloropropene ND ug/L 12/01/23 10:30 10061-02-61.0 1
Ethylbenzene ND ug/L 12/01/23 10:30 100-41-41.0 1
2-Hexanone ND ug/L 12/01/23 10:30 591-78-65.0 1
Iodomethane ND ug/L 12/01/23 10:30 74-88-420.0 1
Methylene Chloride ND ug/L 12/01/23 10:30 75-09-25.0 1
4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 10:30 108-10-15.0 1
Styrene ND ug/L 12/01/23 10:30 100-42-51.0 1
1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 10:30 630-20-61.0 1
1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 10:30 79-34-51.0 1
Tetrachloroethene ND ug/L 12/01/23 10:30 127-18-41.0 1
Tetrahydrofuran ND ug/L 12/01/23 10:30 109-99-910.0 1
Toluene ND ug/L 12/01/23 10:30 108-88-31.0 1
1,1,1-Trichloroethane ND ug/L 12/01/23 10:30 71-55-61.0 1
1,1,2-Trichloroethane ND ug/L 12/01/23 10:30 79-00-51.0 1
Trichloroethene ND ug/L 12/01/23 10:30 79-01-61.0 1
Trichlorofluoromethane ND ug/L 12/01/23 10:30 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 12/01/23 10:30 96-18-41.0 1
Vinyl acetate ND ug/L 12/01/23 10:30 108-05-42.0 1
Vinyl chloride ND ug/L 12/01/23 10:30 75-01-41.0 1
Xylene (Total)ND ug/L 12/01/23 10:30 1330-20-71.0 1
m&p-Xylene ND ug/L 12/01/23 10:30 179601-23-12.0 1
o-Xylene ND ug/L 12/01/23 10:30 95-47-61.0 1
Surrogates
4-Bromofluorobenzene (S)93 %12/01/23 10:30 460-00-470-130 1
1,2-Dichloroethane-d4 (S)87 %12/01/23 10:30 17060-07-070-130 1
Toluene-d8 (S)100 %12/01/23 10:30 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 10:45 123-91-12.0 1
Surrogates
1,2-Dichloroethane-d4 (S)87 %11/23/23 10:45 17060-07-067-130 1
Toluene-d8 (S)90 %11/23/23 10:45 2037-26-570-130 1
Analytical Method: SM 2320B-2011
Pace Analytical Services - Asheville
2320B Alkalinity
Alkalinity, Total as CaCO3 67.5 mg/L 11/30/23 18:405.0 1
Analytical Method: SM 2540C-2015
Pace Analytical Services - Asheville
2540C Total Dissolved Solids
Total Dissolved Solids 110 mg/L 11/27/23 20:3125.0 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
[phone]
Page 14 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: 6804-MW211R Lab ID: 92700200004 Collected: 11/21/23 11:20 Received: 11/22/23 12:18 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 3.3 mg/L 11/25/23 18:10 16887-00-61.0 1
Sulfate 4.2 mg/L 11/25/23 18:10 14808-79-81.0 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
[phone]
Page 15 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: TRIP BLANK 1 Lab ID: 92700200005 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 03:05 67-64-125.0 1
Acrylonitrile ND ug/L 12/01/23 03:05 107-13-110.0 1
Benzene ND ug/L 12/01/23 03:05 71-43-21.0 1
Bromochloromethane ND ug/L 12/01/23 03:05 74-97-51.0 1
Bromodichloromethane ND ug/L 12/01/23 03:05 75-27-41.0 1
Bromoform ND ug/L 12/01/23 03:05 75-25-21.0 1
Bromomethane ND ug/L 12/01/23 03:05 74-83-9 IH2.0 1
2-Butanone (MEK)ND ug/L 12/01/23 03:05 78-93-35.0 1
Carbon disulfide ND ug/L 12/01/23 03:05 75-15-02.0 1
Carbon tetrachloride ND ug/L 12/01/23 03:05 56-23-51.0 1
Chlorobenzene ND ug/L 12/01/23 03:05 108-90-71.0 1
Chloroethane ND ug/L 12/01/23 03:05 75-00-31.0 1
Chloroform ND ug/L 12/01/23 03:05 67-66-31.0 1
Chloromethane ND ug/L 12/01/23 03:05 74-87-31.0 1
Dibromochloromethane ND ug/L 12/01/23 03:05 124-48-11.0 1
Dibromomethane ND ug/L 12/01/23 03:05 74-95-31.0 1
1,2-Dichlorobenzene ND ug/L 12/01/23 03:05 95-50-11.0 1
1,4-Dichlorobenzene ND ug/L 12/01/23 03:05 106-46-71.0 1
trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 03:05 110-57-61.0 1
1,1-Dichloroethane ND ug/L 12/01/23 03:05 75-34-31.0 1
1,2-Dichloroethane ND ug/L 12/01/23 03:05 107-06-21.0 1
1,1-Dichloroethene ND ug/L 12/01/23 03:05 75-35-41.0 1
cis-1,2-Dichloroethene ND ug/L 12/01/23 03:05 156-59-21.0 1
trans-1,2-Dichloroethene ND ug/L 12/01/23 03:05 156-60-51.0 1
1,2-Dichloropropane ND ug/L 12/01/23 03:05 78-87-51.0 1
cis-1,3-Dichloropropene ND ug/L 12/01/23 03:05 10061-01-51.0 1
trans-1,3-Dichloropropene ND ug/L 12/01/23 03:05 10061-02-61.0 1
Ethylbenzene ND ug/L 12/01/23 03:05 100-41-41.0 1
2-Hexanone ND ug/L 12/01/23 03:05 591-78-65.0 1
Iodomethane ND ug/L 12/01/23 03:05 74-88-420.0 1
Methylene Chloride ND ug/L 12/01/23 03:05 75-09-25.0 1
4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 03:05 108-10-15.0 1
Styrene ND ug/L 12/01/23 03:05 100-42-51.0 1
1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 03:05 630-20-61.0 1
1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 03:05 79-34-51.0 1
Tetrachloroethene ND ug/L 12/01/23 03:05 127-18-41.0 1
Tetrahydrofuran ND ug/L 12/01/23 03:05 109-99-910.0 1
Toluene ND ug/L 12/01/23 03:05 108-88-31.0 1
1,1,1-Trichloroethane ND ug/L 12/01/23 03:05 71-55-61.0 1
1,1,2-Trichloroethane ND ug/L 12/01/23 03:05 79-00-51.0 1
Trichloroethene ND ug/L 12/01/23 03:05 79-01-61.0 1
Trichlorofluoromethane ND ug/L 12/01/23 03:05 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 12/01/23 03:05 96-18-41.0 1
Vinyl acetate ND ug/L 12/01/23 03:05 108-05-42.0 1
Vinyl chloride ND ug/L 12/01/23 03:05 75-01-41.0 1
Xylene (Total)ND ug/L 12/01/23 03:05 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
[phone]
Page 16 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: TRIP BLANK 1 Lab ID: 92700200005 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 03:05 179601-23-12.0 1
o-Xylene ND ug/L 12/01/23 03:05 95-47-61.0 1
Surrogates
4-Bromofluorobenzene (S)95 %12/01/23 03:05 460-00-470-130 1
1,2-Dichloroethane-d4 (S)90 %12/01/23 03:05 17060-07-070-130 1
Toluene-d8 (S)100 %12/01/23 03:05 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
[phone]
Page 17 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: TRIP BLANK 2 Lab ID: 92700200006 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 03:24 67-64-125.0 1
Acrylonitrile ND ug/L 12/01/23 03:24 107-13-110.0 1
Benzene ND ug/L 12/01/23 03:24 71-43-21.0 1
Bromochloromethane ND ug/L 12/01/23 03:24 74-97-51.0 1
Bromodichloromethane ND ug/L 12/01/23 03:24 75-27-41.0 1
Bromoform ND ug/L 12/01/23 03:24 75-25-21.0 1
Bromomethane ND ug/L 12/01/23 03:24 74-83-9 IH2.0 1
2-Butanone (MEK)ND ug/L 12/01/23 03:24 78-93-35.0 1
Carbon disulfide ND ug/L 12/01/23 03:24 75-15-02.0 1
Carbon tetrachloride ND ug/L 12/01/23 03:24 56-23-51.0 1
Chlorobenzene ND ug/L 12/01/23 03:24 108-90-71.0 1
Chloroethane ND ug/L 12/01/23 03:24 75-00-31.0 1
Chloroform ND ug/L 12/01/23 03:24 67-66-31.0 1
Chloromethane ND ug/L 12/01/23 03:24 74-87-31.0 1
Dibromochloromethane ND ug/L 12/01/23 03:24 124-48-11.0 1
Dibromomethane ND ug/L 12/01/23 03:24 74-95-31.0 1
1,2-Dichlorobenzene ND ug/L 12/01/23 03:24 95-50-11.0 1
1,4-Dichlorobenzene ND ug/L 12/01/23 03:24 106-46-71.0 1
trans-1,4-Dichloro-2-butene ND ug/L 12/01/23 03:24 110-57-61.0 1
1,1-Dichloroethane ND ug/L 12/01/23 03:24 75-34-31.0 1
1,2-Dichloroethane ND ug/L 12/01/23 03:24 107-06-21.0 1
1,1-Dichloroethene ND ug/L 12/01/23 03:24 75-35-41.0 1
cis-1,2-Dichloroethene ND ug/L 12/01/23 03:24 156-59-21.0 1
trans-1,2-Dichloroethene ND ug/L 12/01/23 03:24 156-60-51.0 1
1,2-Dichloropropane ND ug/L 12/01/23 03:24 78-87-51.0 1
cis-1,3-Dichloropropene ND ug/L 12/01/23 03:24 10061-01-51.0 1
trans-1,3-Dichloropropene ND ug/L 12/01/23 03:24 10061-02-61.0 1
Ethylbenzene ND ug/L 12/01/23 03:24 100-41-41.0 1
2-Hexanone ND ug/L 12/01/23 03:24 591-78-65.0 1
Iodomethane ND ug/L 12/01/23 03:24 74-88-420.0 1
Methylene Chloride ND ug/L 12/01/23 03:24 75-09-25.0 1
4-Methyl-2-pentanone (MIBK)ND ug/L 12/01/23 03:24 108-10-15.0 1
Styrene ND ug/L 12/01/23 03:24 100-42-51.0 1
1,1,1,2-Tetrachloroethane ND ug/L 12/01/23 03:24 630-20-61.0 1
1,1,2,2-Tetrachloroethane ND ug/L 12/01/23 03:24 79-34-51.0 1
Tetrachloroethene ND ug/L 12/01/23 03:24 127-18-41.0 1
Tetrahydrofuran ND ug/L 12/01/23 03:24 109-99-910.0 1
Toluene ND ug/L 12/01/23 03:24 108-88-31.0 1
1,1,1-Trichloroethane ND ug/L 12/01/23 03:24 71-55-61.0 1
1,1,2-Trichloroethane ND ug/L 12/01/23 03:24 79-00-51.0 1
Trichloroethene ND ug/L 12/01/23 03:24 79-01-61.0 1
Trichlorofluoromethane ND ug/L 12/01/23 03:24 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 12/01/23 03:24 96-18-41.0 1
Vinyl acetate ND ug/L 12/01/23 03:24 108-05-42.0 1
Vinyl chloride ND ug/L 12/01/23 03:24 75-01-41.0 1
Xylene (Total)ND ug/L 12/01/23 03:24 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
[phone]
Page 18 of 36
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Sample: TRIP BLANK 2 Lab ID: 92700200006 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 03:24 179601-23-12.0 1
o-Xylene ND ug/L 12/01/23 03:24 95-47-61.0 1
Surrogates
4-Bromofluorobenzene (S)94 %12/01/23 03:24 460-00-470-130 1
1,2-Dichloroethane-d4 (S)90 %12/01/23 03:24 17060-07-070-130 1
Toluene-d8 (S)99 %12/01/23 03:24 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
[phone]
Page 19 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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:
815336
EPA 7470A
EPA 7470A
7470 Mercury
Laboratory:Pace Analytical Services - Asheville
Associated Lab Samples: 92700200001, 92700200002, 92700200003, 92700200004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4220820
Associated Lab Samples:92700200001, 92700200002, 92700200003, 92700200004
Matrix: Water
Analyzed
Mercury ug/L ND 0.20 11/28/23 10:51
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4220821LABORATORY CONTROL SAMPLE:
LCSSpike
Mercury ug/L 2.52.5 100 80-120
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4220822MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92700200001
4220823
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Mercury ug/L 2.5 100 75-125102 22.5ND 2.5 2.6
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
[phone]
Page 20 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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: 92700200001, 92700200002, 92700200003, 92700200004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4222044
Associated Lab Samples:92700200001, 92700200002, 92700200003, 92700200004
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
Iron ug/L ND 50.0 12/05/23 20:09
Lead ug/L ND 5.0 12/04/23 21:22
Manganese ug/L ND 5.0 12/05/23 20:09
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
Iron ug/L 51405000 103 80-120
Lead ug/L 518500 104 80-120
Manganese ug/L 506500 101 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
[phone]
Page 21 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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
Iron ug/L 5000 97 75-125100 250002335110 5230
Lead ug/L 500 103 75-125103 0500ND514 516
Manganese ug/L 500 97 75-125101 2500279764 782
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
[phone]
Page 22 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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: 92700200001, 92700200002, 92700200003, 92700200004, 92700200005, 92700200006
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4225726
Associated Lab Samples:92700200001, 92700200002, 92700200003, 92700200004, 92700200005, 92700200006
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
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
Tetrahydrofuran ug/L ND 10.0 12/01/23 01:51
Toluene 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
[phone]
Page 23 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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:92700200001, 92700200002, 92700200003, 92700200004, 92700200005, 92700200006
Matrix: Water
Analyzed
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
cis-1,2-Dichloroethene ug/L 18.520 92 70-130
cis-1,3-Dichloropropene ug/L 18.120 90 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: 12/06/2023 03:11 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 24 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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
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
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
Tetrahydrofuran ug/L 171200 85 70-131
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
Benzene ug/L 20 110 68-144121 1020ND21.9 24.2
Bromochloromethane ug/L 20 104 70-148112 820ND20.8 22.5
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 12/06/2023 03:11 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 25 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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.
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
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
Tetrahydrofuran ug/L 200 87 48-160102 16200ND174 204
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
[phone]
Page 26 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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: 92700200001, 92700200002, 92700200003, 92700200004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4220392
Associated Lab Samples:92700200001, 92700200002, 92700200003, 92700200004
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
[phone]
Page 27 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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:
816336
SM 2320B-2011
SM 2320B-2011
2320B Alkalinity
Laboratory:Pace Analytical Services - Asheville
Associated Lab Samples: 92700200001, 92700200002, 92700200003, 92700200004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4225336
Associated Lab Samples:92700200001, 92700200002, 92700200003, 92700200004
Matrix: Water
Analyzed
Alkalinity, Total as CaCO3 mg/L ND 5.0 11/30/23 15:34
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4225337LABORATORY CONTROL SAMPLE:
LCSSpike
Alkalinity, Total as CaCO3 mg/L 51.850 104 80-120
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4225338LABORATORY CONTROL SAMPLE:
LCSSpike
Alkalinity, Total as CaCO3 mg/L 50.050 100 80-120
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4225339MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92700191001
4225340
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Alkalinity, Total as CaCO3 mg/L 50 110 80-120112 150138193 194
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4226089MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92700200001
4226090
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Alkalinity, Total as CaCO3 mg/L 50 101 80-120104 15082.8 133 135
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
[phone]
Page 28 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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:
815526
SM 2540C-2015
SM 2540C-2015
2540C Total Dissolved Solids
Laboratory:Pace Analytical Services - Asheville
Associated Lab Samples: 92700200001, 92700200002, 92700200003, 92700200004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4221504
Associated Lab Samples:92700200001, 92700200002, 92700200003, 92700200004
Matrix: Water
Analyzed
Total Dissolved Solids mg/L ND 25.0 11/27/23 20:25
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4221505LABORATORY CONTROL SAMPLE:
LCSSpike
Total Dissolved Solids mg/L 258250 103 90-110
Parameter Units
Dup
Result QualifiersRPDResult
92700200001
4221506SAMPLE DUPLICATE:
Total Dissolved Solids mg/L 174 1176
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
[phone]
Page 29 of 36
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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:
815300
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: 92700200001, 92700200002, 92700200003, 92700200004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 4220718
Associated Lab Samples:92700200001, 92700200002, 92700200003, 92700200004
Matrix: Water
Analyzed
Chloride mg/L ND 1.0 11/25/23 13:12
Sulfate mg/L ND 1.0 11/25/23 13:12
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
4220719LABORATORY CONTROL SAMPLE:
LCSSpike
Chloride mg/L 51.850 104 90-110
Sulfate mg/L 52.150 104 90-110
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4220720MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92700200001
4220721
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Chloride mg/L 50 95 90-110100 55011.1 58.4 61.3
Sulfate mg/L 50 99 90-110105 45031.1 80.8 83.7
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
4220722MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92700191001
4220723
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Chloride mg/L 50 102 90-110103 05017.6 68.6 68.9
Sulfate mg/L M1508490-11084 050248290 290
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
[phone]
Page 30 of 36
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
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
Results are from sample aliquot taken from VOA vial with headspace (air bubble greater than 6 mm diameter).HS
This analyte exceeded secondary source verification criteria high for the initial calibration. The reported results should be
considered an estimated value.IH
Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1
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
[phone]
Page 31 of 36
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92700200
OCSWM FALL-C&D
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92700200001 815698 8158316804-MW209 EPA 3010A EPA 6010D
92700200002 815698 8158316804-MW204S EPA 3010A EPA 6010D
92700200003 815698 8158316804-MW210D EPA 3010A EPA 6010D
92700200004 815698 8158316804-MW211R EPA 3010A EPA 6010D
92700200001 815336 8153556804-MW209 EPA 7470A EPA 7470A
92700200002 815336 8153556804-MW204S EPA 7470A EPA 7470A
92700200003 815336 8153556804-MW210D EPA 7470A EPA 7470A
92700200004 815336 8153556804-MW211R EPA 7470A EPA 7470A
92700200001 8164056804-MW209 EPA 8260D
92700200002 8164056804-MW204S EPA 8260D
92700200003 8164056804-MW210D EPA 8260D
92700200004 8164056804-MW211R EPA 8260D
92700200005 816405TRIP BLANK 1 EPA 8260D
92700200006 816405TRIP BLANK 2 EPA 8260D
92700200001 8152096804-MW209 EPA 8260D Mod.
92700200002 8152096804-MW204S EPA 8260D Mod.
92700200003 8152096804-MW210D EPA 8260D Mod.
92700200004 8152096804-MW211R EPA 8260D Mod.
92700200001 8163366804-MW209 SM 2320B-2011
92700200002 8163366804-MW204S SM 2320B-2011
92700200003 8163366804-MW210D SM 2320B-2011
92700200004 8163366804-MW211R SM 2320B-2011
92700200001 8155266804-MW209 SM 2540C-2015
92700200002 8155266804-MW204S SM 2540C-2015
92700200003 8155266804-MW210D SM 2540C-2015
92700200004 8155266804-MW211R SM 2540C-2015
92700200001 8153006804-MW209 EPA 300.0 Rev 2.1 1993
92700200002 8153006804-MW204S EPA 300.0 Rev 2.1 1993
92700200003 8153006804-MW210D EPA 300.0 Rev 2.1 1993
92700200004 8153006804-MW211R EPA 300.0 Rev 2.1 1993
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
[phone]
Page 32 of 36
Page 33 of 36
Page 34 of 36
Page 35 of 36
Page 36 of 36

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 7: Shared Monitoring Wells (MW-04)
#=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
[e-mail]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
Page 23 of 27
Page 24 of 27
Page 25 of 27
Page 26 of 27
Page 27 of 27

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 7: Shared Monitoring Wells (MW-110S, MW-110D)
#=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
[e-mail]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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
[phone]
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 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 8: Field Data

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.22.23 Attachment 8 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENT 8 FIELD DATA: ACTIVE C&D 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 37), TRC personnel obtained groundwater samples from groundwater monitoring wells associated with the Orange County Solid Waste Management Active C&D Facility. During the subject sampling event, samples were obtained for the following chemical analyses.
• Samples were obtained from upgradient monitoring well 6804-MW211R for analysis of [1] the constituents listed in Appendix I (plus 1,4-dioxane), [2] one of the constituents listed in Appendix II (mercury), and [3] several parameters that are unique to C&D facilities (manganese, iron, tetrahydrofuran, total dissolved solids, chloride, alkalinity, sulfate).
• Samples were obtained from three downgradient compliance wells (6804-MW204S, 6804-MW209, 6804-MW210D) for analysis of [1] the constituents listed in Appendix I (plus 1,4-dioxane), [2] one of the constituents listed in Appendix II (mercury), and [3] several parameters that are unique to C&D facilities (manganese, iron, tetrahydrofuran, total
dissolved solids, chloride, alkalinity, sulfate).
• Samples were obtained from downgradient monitoring well 6801-MW04 for analysis of [1] the constituents listed in 40 CFR Part 258 Appendix I (15A NCAC 13B .1600; plus 1,4-dioxane), [2] those constituents listed in Appendix II that have been previously and reliably detected at North landfill (mercury, naphthalene, sulfide) and [3] for those constituents required by regulations for monitoring of C&D landfills (manganese, iron, chloride, sulfate,
total dissolved solids, alkalinity).
Note: Well 6801-MW04 is associated with the monitoring programs for the closed North
sanitary landfill, the closed South sanitary landfill, and the active C&D landfill.
• Additional samples were obtained from downgradient monitoring well 6804-MW209 for quality control parameters.
• Samples were obtained from downgradient monitoring well 6801-MW110S for analysis of [1] the constituents listed in Appendix I (plus 1,4-dioxane) and [2] the constituents required by regulations for monitoring of C&D landfills (manganese, iron, mercury, chloride, sulphate, tetrahydrofuran, total dissolved solids, alkalinity).
Note: Well 6801-MW110S is associated with the monitoring programs for the closed North sanitary landfill, the South sanitary landfill, and active C&D landfill.
• Four trip blanks were to be analyzed for quality control purposes.

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.23.23 Attachment 8 OCSWM Active C&D Facility, Permit No. 68-04
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 All permitted wells were purged by TRC personnel using dedicated, submersible bladder pumps with a compressor that was driven by a battery and 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 essentially involves purging groundwater from a monitoring well at a sufficient rate so as not to significantly disturb the water column. During the purging process, several water quality parameters (pH, specific conductance, water temperature, dissolved oxygen, turbidity, ORP) are periodically measured until successive readings are generally consistent (within 10%). Additional purging criteria are presented in the Guidelines document discussed above. 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 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.

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.23.23 Attachment 8 OCSWM Active C&D Facility, Permit No. 68-04
1.6 Well Sampling
Groundwater samples were obtained using the dedicated pumps immediately after pH, specific conductance, and temperature had stabilized.
Quality control analyses were performed on samples obtained from 6804-MW209, including a Matrix Spike and Matrix Spike Duplicate. 1.7 Well Sampling Order On November 20 through November 22, 2023 (sampling event 37), TRC personnel sampled wells in their general order of their occurrence around the perimeter of the facility. The upgradient well(s) were sampled first. 1.8 Preservation At the laboratory, all sample vessels were prepared with preservative by Pace if required by the method in SW-846.
1.9 Sample Transport
Immediately after the samples were obtained, they were placed beneath ice in insulated containers for transportation to the laboratory. Samples obtained on November 20 through November 22, 2023, were hand-delivered to Pace the same day that 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. Additional information concerning each monitoring well is presented at the end of this
ATTACHMENT.

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 9: Statistical Analyses

Groundwater Monitoring Program Results of Sampling and Analysis March 2024 Sampling Event 37: 11.20.23 to 11.22.23 Attachment 9 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENT 9 STATISTICAL ANALYSES
The regulations and the Groundwater Monitoring Plan indicate that (after background sampling and analysis has been completed) each report shall also include:
• the arithmetic mean and variance of background data for each constituent
• the results of statistical analyses Statistical analyses, as conducted to establish facility background concentrations, are documented in a report previously submitted to the NCDENR - Solid Waste Section (issued April, 2006). 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 were replaced with their respective Method Reporting Limit (MRL) values (unless the statistical prediction limit was larger).
Current facility background values (denoted as “FBAC”) are shown on a series of tables summarizing the history of groundwater chemistry at the facility (ATTACHMENT 5 and ATTACHMENT 6).

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 10: Quality Control Assessment

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04
ATTACHMENT 10 QUALITY CONTROL INFORMATION 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. In addition, 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 all constituents listed in 40 CFR Part 258 Appendix II (15A NCAC 13B .1600) that are typically analyzed using EPA Method 8260D.
The laboratory did not report any contaminants in the trip blanks submitted. 2.0 LABORATORY QUALITY ASSURANCE / QUALITY CONTROL
A limited QA/QC review was performed on the data provided by Eurofins 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.

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04
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. 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.

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04
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 300.0 (chloride, sulfate) As part of the QA/QC review for these constituents, 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. 2.6 EPA 310.2 (alkalinity) As part of the QA/QC review for these constituents, 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. 2.7 SM 2540C-2011 (total dissolved solids) As part of the QA/QC review for these constituents, 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, with the exception of holding times. Samples collected from MW-4 and MW-110S were ran out of hold. The reported results are consistent with historical data.

Groundwater Monitoring Program March 2024 Results of Sampling and Analysis Attachment 10 Sampling Event 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

[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 37: 11.20.23 to 11.22.23 OCSWM Active C&D Facility, Permit No. 68-04

Attachment 11: Correspondence

Groundwater Monitoring Program March 2024
Results of Sampling and Analysis
Sampling Event 37: 11.20.23 to 11.22.23
OCSWM Active C&D Facility, Permit No. 68-04

Reserved