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HomeMy WebLinkAbout1302_Cabarrus_CDLF_March21GW_FID1584444_20210526Cabarrus County C&D Landfill Semi -Annual Sampling Report Facility Permit # 1302-CDLF-2006 (March 2021 Sampling Event) /prepared May 2021 ONLY: Electronic Division of Waste Management - Solid Waste - Email CD (data loaded: Yes / No) Doe/Event #: Environmental Monitoring Reportinci Form Notice: This form and any information attached to it are "Public KecordS" as defined in NU Gene available for inspection and examination by any person upon request (NC General Statute 132-6). are Instructions: • Prepare one form for each individually monitored unit. • Please type or print legibly. • Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). • Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. • Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). • Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Consultant - CDM Smith Inc. Contact for questions about data formatting. Include data preparers name, telephone number and E-mail address: Name: Mathew F. Colone Phone: (919) 325-3500 E-mail: colonemf@cdmsmith_com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24, 2006) Cabarrus County C&D Landfill .0500 Environmental Status: (Check all that apply) Initial/Background Monitoring ❑X Detection Monitoring Assessment Monitoring Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Groundwater monitoring data from private water supply wells Leachate monitoring data F]Surface water monitoring data Methane gas monitoring data Corrective action data (specify) Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. RX Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Mathew F. Colone Consultant (919) 325-3500 Name (Print) Signature Title 5400 Glenwood Avenue Suite 400 Raleigh North Carolina 27612 Facility Representative Address F-0412 NC PE Firm License Number (if applicable effective May 1, 2009) 5 �Z%�ZcZ l Date (Area Code) Telephone Affix NCt Seal Revised 6/2009 Smith 5400 Glenwood Avenue, Suite 400 Raleigh, North Carolina 27612 tel: 919 325-3500 fax: 919 781-5730 May 26, 2021 Ms. Jaclynne Drummond North Carolina Department of Environmental Quality Division of Waste Management Solid Waste Section 2090 U.S. 70 Highway Swannanoa, North Carolina 28778 Subject: March 2021 Semi -Annual Sampling Report Cabarrus County C&D Landfill Facility Permit No. 1302-CDLF-2006 Dear Ms. Drummond: CDM Smith Inc., on behalf of Cabarrus County, is submitting an electronic copy of the March 2021 semi- annual sampling event report for the Cabarrus County C&D Landfill. This letter report presents the results of the recently completed sampling at the C&D Landfill and constitutes the first semi-annual sampling event for 2021. The approved monitoring well network for the C&D Landfill consists of background wells CD -Is and -1d; compliance wells CD-2, -4 Rep, -7, and -9; and surface water sample location SW-3. CD-4 Rep was installed in January 2009 as part of the proposed Phase 1 C&D Landfill expansion. Monitoring well CD-7, formerly piezometer B-7, was added to the monitoring program in July 2014 as part of the Phase 2 C&D Landfill expansion. Monitoring well CD-9 was installed on March 19, 2017, as part of the Phase 3 C&D Landfill expansion. Field activities and sampling results for the groundwater and surface water samples are discussed below. Field Activities Groundwater and surface water samples from the Cabarrus County C&D Landfill were collected on March 16-18, 2021. Groundwater samples were collected from the monitoring wells by use of disposable, laboratory decontaminated bailers. Monitoring well locations and the surface water location for the C&D Landfill are provided on Figure 1. Groundwater elevations were measured at each well prior to sampling and are presented in Table 1. Well construction details for each monitoring well are also provided in Table 1. These groundwater elevations were used to construct potentiometric contours for this sampling event and are presented on Figure 1. After depth to groundwater was measured, each well was purged prior to sampling to provide fresh formation water within the well water column. Each purge volume was measured for pH, Of WATER + ENVIRONMENT +TRANSPORTATION + ENERGY + FACILITIES Smith Ms. Jaclynne Drummond May 26, 2021 Page 2 conductivity, turbidity, temperature, dissolved oxygen, and oxidation-reduction potential using a YSI-556 multi -parameter water quality meter and a HANNA HI 98703 turbidity meter. The water quality parameters at the time of sampling are presented in Table 2. Sampling Results Pace Analytical Services, LLC, located in West Columbia, South Carolina, analyzed the groundwater samples for North Carolina Appendix I volatile organic compounds (VOCs) plus tetra hydrofuran, North Carolina Appendix I metals plus iron, mercury, and manganese, alkalinity, total dissolved solids (TDS), chloride, and sulfate except for CD-4 Rep and surface water samples. Samples collected from CD-4 Rep and SW-3 were analyzed for North Carolina Appendix I VOCs and metals. In a letter dated May 28, 2019, the Solid Waste Section requested that all groundwater and surface water samples collected from landfills be analyzed for 1,4-dioxane after July 1, 2018. On July 1, 2019, the Solid Waste Section approved the removal of 1,4-dioxane from the sampling program due to two consecutive non -detect events (January and May 2019), except for SW-3. 1,4-Dioxane sample results for SW-3 are provided below. The analytical results were reported to the laboratory specific method detection limit (MDL) and are quantifiable at or below the method reporting limit (MRL). All monitoring wells and the surface water sample for the C&D Landfill had detections of analytes above the MDL but below the MRL. These detections were qualified as estimated or "J" flags. In samples collected from CD-2, the detection of iron had a "S" flag, indicating that there was a laboratory matrix spike/matrix spike detection failure. The following list indicates the analytes detected above the MRL at each sampling location. No "J" flag detections are provided. Underlined analytes exceeded the 15A NCAC 02L .0202 (NC 2L) Groundwater Standard, Interim Maximum Allowable Concentration (IMAC) Standard, or 15A NCAC 02B .0211 (NC 2B) or North Carolina In -Stream Target Value Surface Water Quality Standards for Class C Waters. CD-1s (Background) General Chemistry: Alkalinity, Chloride, Sulfate, TDS Metals: Barium, Iron, Manganese Volatile Organic Compounds: None Detected CD-1d (Background) General Chemistry: Alkalinity, Chloride, Sulfate, TDS Metals: Barium, Iron, Manganese Volatile Organic Compounds: None Detected 0. Smith Ms. Jaclynne Drummond May 26, 2021 Page 3 CD-2 General Chemistry: Metals: Volatile Organic Compounds: CD-4 Rep Metals: Volatile Organic Compounds: CD-7 General Chemistry: Metals: Volatile Organic Compounds: CD-9 General Chemistry: Metals: Volatile Organic Compounds: SW-3 General Chemistry: Metals: Volatile Organic Compounds: Alkalinity, Chloride, Sulfate, TDS Barium, Iron, Lead, Manganese, Vanadium 1,1-Dichloroethane Barium, Beryllium, Chromium, Cobalt, Lead, Nickel, Vanadium, Zinc None Detected Alkalinity, Chloride, Sulfate, TDS Barium, Cobalt, Copper, Iron, Lead, Manganese, Nickel, Vanadium Benzene, Chloroethane, 1,1-Dichloroethane, cis-1,2-Dichloroethene, Methylene Chloride, Tetrahydrofuran, Trichlorofluoromethane, Vinyl Chloride Alkalinity, Chloride, Sulfate, TDS Barium, Copper, Iron, Manganese, Nickel, Vanadium 1,4-DichIorobenzene, 1,1-Dichloroethane, cis-1,2-Dichloroethene None Detected Barium, Copper, Lead, Vanadium None Detected "J" flags were not included in the previous list, but several locations had "J" flag detections that exceeded the standards. These constituents along with their location are listed below. Cobalt: CD-2 and -9 Vanadium: CD -Is and -1d Equipment and trip blanks were analyzed for quality control. A duplicate sample was also analyzed for quality control. Zinc was detected in the equipment blank as an estimated concentration below its NC 2L Groundwater Standard. There were no detections in the trip blank above the MDLs. The duplicate sample, identified as CD DUP, was collected from CD-9. The duplicate sample had similar concentrations as those detected in CD-9, except for an estimated detection of beryllium below its IMAC in the duplicate sample. Metals detected above the standards are likely naturally occurring based on concentrations in the background monitoring wells or are from elevated turbidity at the time of sample collection. Benzene, 0 Smith Ms. Jaclynne Drummond May 26, 2021 Page 4 tetra chloroethene, and vinyl chloride were detected above the NC 2L Groundwater Standards in samples collected from CD-7 in 2019. In September 2020 and March 2021, only vinyl chloride was detected above the NC 2L Groundwater Standard. A complete summary of all detected constituents from the March 2021 sampling event is presented in Table 3. The laboratory analytical reports are provided in Appendix A. The next semi-annual sampling event will be completed in the fall of 2021. If you have any questions or require further explanation, do not hesitate to call me at (919) 325-3500 or by email at colonemf@cdmsmith.com. Very truly yours, _X�14zt-It- Mathew F. Colone, P.G. CDM Smith Inc. cc: Kevin Grant, Cabarrus County 0. Table 1 Monitoring Well Construction Summary and Groundwater Elevations March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 Depth..3/15/2021 Facility Permit MonitoringMonitoring ology of Total Depth Well Latitude Longitude Number Code Date Screened Interval (feet BTOC) Screen Filter Seal (inches) TOC Groundwater Groundwater Interval Interval Interval Elevation :. Elevation CD-1s 1302-CDLF-2006 8/7/2006 35.47788 80.52334 Saprolite 29.53 18.0-28.0 16.0-28.0 14.0-16.0 2.0 755.00 19.62 735.38 (background well) CD-1d 1302-CDLF-2006 7/21/2004 35.47788 80.52340 PWR 52.15 40.0-50.0 38.0-50.0 36.0-38.0 2.0 757.40 22.25 735.15 (background well) 1302-CDLF-2006 CD-2 9/12/2006 35.47698 80.52494 Saprolite 25.69 9.0-24.0 7.0-24.0 5.0-7.0 2.0 733.00 9.37 723.63 1302-CDLF-2006 CD-4 Rep 1/15/2009 35.47656 80.52210 Saprolite 19.41 6.0-16.0 4.0-16.0 2.0-4.0 2.0 739.15 7.22 731.93 1302-CDLF-2006 CD-7 11/25/2002 35.47567 80.52551 Bedrock 46.31 34.0-44.0 32.0-44.0 30.0-32.0 2.0 744.81 36.93 707.88 1302-CDLF-2006 CD-9 3/9/2017 35.47488 80.52564 PWR 51.00 36.0-51.0 34.0-51.0 32.0-36.0 2.0 748.13 40.85 707.28 Notes: 1. BTOC - Below Top of Casing 2. bgs - Below Ground Surface 3. PWR - Partially Weathered Rock 4. CD-4 Rep was installed as part of the proposed Phase 1 C&D Landfill expansion in November 2010. 5. CD-7 (formerly piezometer B-7) was added to the monitoring program in July 2014 as part of the Phase 2 C&D Landfill expansion. 6. CD-9 was installed as part of the Phase 3 C&D Landfill expansion in March 2017. CDM Smith Page 1 of 1 May 2021 Table 2 Water Quality Measurements March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 Water Quality Measurements Monitoring Well Code Dissolved ORP PH Conductivity Temperature CD-1s 6.10 137 14.1 3.98 -91.2 8 (background well) CD-1d 6.04 119 14.1 5.04 -68.8 9 (background well) CD-2 5.96 469 10.6 2.73 -144.7 41 CD-4 Rep 6.12 262 11.3 0.80 -202.7 31 CD-7 5.92 502 12.8 2.37 -146.1 22 CD-9 5.72 282 12.4 2.15 -141.7 34 Surface Water Sample Location SW-3 6.97 11 8.7 10.97 -210.6 50 Notes: 1. Water quality measurements were collected on March 15, 16, and 18, 2021. 2. CD-4 Rep was installed as part of the proposed Phase 1 C&D Landfill expansion in November 2010. 3. CD-7 (formerly piezometer B-7) was added to the monitoring program in July 2014 as part of the Phase 2 C&D Landfill expansion. 4. CD-9 was installed as part of the Phase 3 C&D Landfill expansion in March 2017. 5. µ5/cm - Microsiemens per centimeter 6. mg/L - Milligrams per liter 7. ORP - Oxidation -Reduction Potential 8. NTUs - Nephelometric Turbidity Units 9. mvs - Millivolts 10. S.U. - Standard Unit CDNI Page 1 of 1 May 2021 Smith Table 3a Detected Groundwater Constituents - General Chemistry and Metals March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 General Chemistry v a, - +' c �a _T v T M 41 Q. i M Y L 3 v riortn Laroiinaor 7W CD-1s •. • 3-May-11 47,000 1 1 1 1 1 1 1 11 146,000 11111 1 81.4J 0.19J 1 5.45JB ILI 4.23J JL,41(ril31111 16.0 7,770 2.32J 11 190 ILIJ141 5.93J Z1111 1l.ZI 0.14J 1 1 20.6J 1 1 1 26.5 3,600 1,200J CD-1s 8-Nov-11 40,000 4,000 1,1001 65,000 59.7J 0.25JB 4.46J 2.67J 12.4 5,350 1.9J 127 4.41J 0.08J 11.2J 18.2 CD-1s 7-May-12 46,000 3,900 158,000 45.5J 3.30J 1.19J 8.75J 3,120 1.12J 63.4 3.01J 12.7J 12.6B CD-1s 28-Nov-12 39,000 4,100 110,000 63.8J 0.11J 5.65J 3.05J 11.6 5,210 1.43J 139 4.66J 17.1J 16.9 CD-1s 7-May-13 42,000 4,000 120,000 0.94J 2.4JB 35.6J 0.88J 0.67J 4.04J 1,340 0.39J 37.7 1.78J 0.13J 6.06J 5.08J CD-1s 5-Nov-13 30,000 3,800 80,500 46.8J 0.12J 3.59J 1.63J 10.2 4,200 1.35J 82.2 3.50J 18.4JB 15.4B CD-1s 6-May-14 42,000 3,800 111,000 28.8J 4.14JB 1.48J 347B 0.11J 10.1B 1.03J 0.31J 3.40J 2.98JB CD-1s 4-Nov-14 41,000 3,900 102,000 28.7J 0.13J 1.31J 118 0.06J 6.6J 1.04J 0.11J 2.57JB 1.58J CD-1s 5-May-15 38,000 3,800 <5,000 113,000 1.63J 29.5JB 1.33J 371 0.15J 13.8 0.103JB 1.17J 2.40J 2.75JB CD-1s 27-Oct-15 43,000 3,800 110,000 1.00J 28.4J 0.80J 0.39J 0.75J 234 0.12J 35.9 1.21J 4.19CN,J 0.15J 4.10J 3.36E-01,J 1302-CDLF-2006 CD-1s 17-May-16 43,000 3,700 1,0001 130,000 23.9J 0.94J 0.991 446 0.12J 17.OJ 1.01J 4.70J 1.93J CD-1s 1-Nov-16 46,000 4,200 <5,000 71,000 30.5J 1.23J 1.32J 1.36J 647 0.28J 70.8 1.35J 4.30J CD-1s 9-May-17 49,000 3,600 1,300J 120,000 34.3J 1.17J 1.26J 522 0.20J 24.4 0.97J 6.69J 1.82J CD-1s 31-Oct-17 50,000 4,200 1,0001 161,000 0.52J 36.3J 1.81J 0.54J 2.87J 1,270 0.37J 31.2J 1.41J 6.91J 4.00J CD-1s 11-Jun-18 49,000 3,890 904J (1) 28.9J 214J 8.1J 0.051J 4.3J 4.4J CD-1s 17-Dec-18 46,000 3,720 9911 119,000 26.7J 55.9 0.60J 3.6J 498 16.6 15.OJ 7.OJ 9.5J CD-1s 7-May-19 43,000 2,930 12,600 158,000 29.8 638 17.6 1.3J 7.OJ 5.1J CD-1s 5-Nov-19 43,000 3,750 2,160J 129,OOOH1 31.9 1.01 1.8JB 153 0.070J 7.OJ 0.73J 5.01 7.1B CD-1s 18-May-20 49,100 4,570 4,280 141,OOOH1 0.46J 34.5 2.2J 0.92J 437 0.23J 11.3 1.4J 6.4J 6.9J CD-1s 23-Sep-20 51,000 5,500 2,500 140,000 34 1.3J 1.51 630 21 4.9J 4.2J CD-1s 17-Mar-21 53,000 9,400 4,800 140,000 42 1.3J 290 7.6 4.1J 5.8J CD-1d 3-May-11 57,000 2,600 3,000J 206,000 2.44J 231 2.03 16.7 18.6 112 49,400 14.0 659 22.3J 0.111 101 103 CD-1d 8-Nov-11 30,000 2,900 3,000J 98,000 74.5J 0.51J 4.08J 4.27J 27 9,190 2.84J 144 5.68J 24.6J 26.3 CD-1d 7-May-12 50,000 2,800 150,000 72.4J 0.58J 3.91J 4.67J 25 9,380 2.81J 170 5.58J 26 27.9B CD-1d 28-Nov-12 46,000 3,000 128,000 0.33J 37.7J 0.07J 2.38J 0.94J 12.6 1,900 1.14J 41.4 2.50J 8.90J 13 CD-1d 7-May-13 52,000 3,000 125,000 0.88J 1.02JB 31.2J 0.07J 0.78J 4.5J 1,080 0.49J 25.5 1.92J 6.18J 13.1 CD-1d 5-Nov-13 42,000 3,000 104,000 35.OJ 0.86J 4.34J 1.13J 812 1.90J 46.2 17.1JB 10.8B CD-1d 6-May-14 46,000 2,900 119,000 1.14J 37.8J 0.07J 0.05J 3.22JB 1.16J 7.34J 1,610B 0.81J 49.6B 2.74J 0.12J 6.16J 9.41JB CD-1d 4-Nov-14 43,000 3,100 101,000 43.1J 0.16J 0.11J 2.25J 9.09J 3,400 0.87J 88.5 2.88J 10.2JB 10.7 CD-1d 5-May-15 44,000 2,900 <5000 115,000 34.5JB 0.84J 3.63J 1,320 0.39J 32.5 1.42J 5.18J 3.68JB CD-1d 27-Oct-15 46,000 2,900 120,000 0.42J 42.1 0.13J 1.87J 2.15J 8.18J 3,170 0.97J 87.4 2.49J 4.37CN,J 0.06J 10.9J 14.0E-01 1302-CDLF-2006 CD-1d 17-May-16 96,000 18,000 14,000J 202,000 81.1 0.46J 4.86J 7.42J 26.0 12,000 3.13J 287 7.11J 2.11J 0.07J 29.3 29.7 CD-1d 1-Nov-16 52,000 3,400 <5,000 99,000 32.6J 1.19J 0.77J 2.82J 1,200 0.33J 31.3J 1.24J 7.96J 4.29J CD-1d 9-May-17 53,000 2,800 3,700J 167,000 33.9J 1.27J 0.52J 1.81J 720 6.92J 25.8J 1.091 6.95J 3.12J CD-1d 31-Oct-17 52,000 3,300 3,300J 154,000 29.5J 0.68J 0.61J 226J 0.11J 11.8J 0.64J 5.38J 1.24J CD-1d 12-Jun-18 51,000 3,200 3,330J 117,000 32.4J 2.5J 432 13.2J 1.0J 6.9J 3.2J CD-1d 17-Dec-18 53,000 3,110 3,360J 121,000 31.9J 9.3J 2.3J 591 0.41J 18.1 3.OJ 6.8J 4.1J CD-1d 7-May-19 52,000 2,840 3,140J 134,000 30.7 1.4J 517 9.7J 7.4J 2.9J CD-1d 5-Nov-19 48,000 3,140 3,070J 137,OOOH1 0.48J 30.1 1.91 1.1JB 197 0.13J 8.9J 1.8J 4.7J 8.2JB CD-1d 18-May-20 54,300 2,450 2,630 121,OOOH1 29.1 0.64J 27.2J 2.OJ 0.33J 5.6J 2.OJ CD-1d 22-Sep-20 53,000 3,100 2,000 130,000 0.67J 38 1.91 8.6 2,300 0.99J 47 4.2J 8.8 36 CD-1d 16-Mar-21 53,000 3,100 2,500 110,000 27 310 7.0 4.8J 3.1J DM_ Page 1 of 9 May 2021 Table 3a 1302-CDLF-2006 1302-CDLF-2006 Detected Groundwater Constituents - General Chemistry and Metals March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 CD-2 3-May-11 2,850 6,800 1,300J 209,000 1.78J 55.9J 0.23J 3.04JB 3.62J CD-2 8-Nov-11 9,000 7,500 1,400J 41,500 22.1J 0.21JB 1.41J 2.15J CD-2 7-May-12 21,000 7,200 104,000 36.4J 0.19J 2.71J 3.38J CD-2 28-Nov-12 25,000 6,700 (1) 39.5J 0.13J 2.89J 2.95J CD-2 7-May-13 20,000 7,200 80,000 0.34J 1.25JB 39.4J 0.23J 1.32J 2.8J CD-2 5-Nov-13 28,000 6,600 55,000 45.1J 0.20J 0.64J 3.31J CD-2 7-May-14 16,000 8,200 135,000 37.5J 0.10J 1.98JB 2.48J CD-2 5-Nov-14 25,000 7,500 330,000 0.07J 46.OJ 2.21JB 2.69J CD-2 6-May-15 16,000 8,100 136,000 52.OJB 0.18J 2.10JB 2.90J CD-2 27-Oct-15 7,750 7,300 5,900J 178,000 0.83J 60.OJ 0.42J 3.94E-01,J 3.71J CD-2 18-May-16 20,000 7,900 <5,000 147,000 49.8J 0.22J 2.32J 3.41J CD-2 1-Nov-16 20,000 8,100 <5,000 850,000H-02 64.5J 0.26J 3.10J 4.15J CD-2 9-May-17 12,500 9,100 2,500J 125,000 54.5J 0.28J 2.40J 3.49J CD-2 1-Nov-17 15,000 7,900 2,900J 635,000 54.OJ 0.16J 1.79J 3.10J CD-2 (dup) 1-Nov-17 16,000 7,400 1,600J 885,000 57.6J 0.17J 2.05J 3.00J CD-2 12-Jun-18 29,000 7,250 4,820J 88,000 58.5J 0.17J 2.2J 2.8J CD-2 (dup) 12-Jun-18 27,000 7,460 4,620J 91,000 56.1 0.17J 1.91 2.6J CD-2 18-Jan-19 40,000 10,500 18,700 107,000 27.2J 0.081J 1.4J CD-2 7-May-19 40,000 8,400 10,500 161,000 0.42J 41.7 0.081J 0.98J 1.91 CD-2 6-Nov-19 64,000 6,220 7,370 151,000 1.2J 68.6 0.11J 1.2J 2.3J CD-2 20-May-20 77,700 7,630 5,200 112,000 0.61J 78.5 0.72J 2.OJ CD-2 25-Sep-20 79,000 9,400 2,900 230,000 110 0.26J 4.6J 2.9J CD-2 16-Mar-21 110,000 9,700 35,000 250,000 56 0.17J 3.1J 1.7J CD-3 3-May-11 105,000 4,300 3,200J 404,000 48.9J 0.11J 2.36J CD-3 8-Nov-11 85,000 5,400 3,900J 144,000 25.5J 0.65J CD-3 7-May-12 75,000 4,500 177,000 41.7J 0.84J 1.27J CD-3 28-Nov-12 104,000 5,100 (1) 46.7J 1.41J 1.90J CD-3 7-May-13 122,000 4,800 181,000 33.8J 1.20J CD-3 5-Nov-13 59,000 4,500 121,000 64J 0.21J 0.74J 3.47J CD-3 7-May-14 61,600 4,200 127,000 28.7J 1.66JB CD-3 5-Nov-14 82,000 13,000 13,000J 425,000 162 0.14J 1.85JB 3.00J CD-3 6-May-15 89,000 13,000 22,000J 280,000 1.38J 159 0.11J 1.26J CD-3 27-Oct-15 95,000 13,000 23,000J 255,000 155 0.10J 1.02E-01,J 1.82J CD-3 18-May-16 100,000 14,000 26,000J 311,000 194 0.12J 1.60J CD-3 1-Nov-16 95.000 14.000 27.000J 162.000 158 0.13J 2.07J 7.91J 5,560 2.75J 3.53J 1,660 1.07J 5.03J 2,760 1.94J 4.40J 2,720 1.42J 4.44J 2,450 1.34J 4.01J 1,600 1.60J 2.26J 1,130B 0.78JB 3.59J 2,000B 1.10J 5.91J 2240 1.37J 8.71J 5,150 2.67J 3.56J 2,350 1.20J 5.48J 4,010 2.55J 3.71J 2,550B-01 1.71J 2.78J 1,630 1.02J 4.01J 1,840 1.08J 2.6J 1,280 0.63J 2.6J 1,200 0.63J 300 0.31J 1.3J 782 0.44J 2.3J B 896 0.60J B 1.2J 309 0.28J 7.8 3,900 2.8 4.1J 2,8005 1.9 7.57J 3,580 1.30J 1.011 178 3.84J 1,170 0.54J 4.35J 1,740 0.82J 2.35J 880 0.42J 10.6 5,170 2.06J 0.72J 83.2B 6.22J 3,770B 1.21J 2.84J 1,230B 0.42J 3.91J 2,010 0.68J 1.35J 607 0.24J 2.77J 1.400 0.49J 92.2 0.031J 3.60J 47.4 1.91 74.1 2.95J 67.2 2.72J 57.8 2.59J 68.8 0.087J 2.38J 49.3 0.105J 2.00J 59.6 (1) 2.47J 57.6 0.158J B 3.74J 83.8 0.073J 5.50J 71.7 0.189J 2.68J 99.5 0.056J 3.11J 68.1 0.115J 2.80J 62.3 0.079J 2.58J 64.1 0.070J 2.776J 51.6 0.12J 3.1J 48.3 0.11J 2.8J 30.6 0.15J 1.2J 49.7 2.2J 75.0 3.OJ 79.7 2.9J 110 5.0 79 3.1J 93.6 2.48J 24.9 1.48J 32.6 3.37J 68.9 1.86J 56.3 1.41J 139 3.25J 4.4J 1.14J 1,030 (1) 8.65J 1,090 0.102JB 7.25J 936 7.72J 1,010 7.88J 1.19J 922 6.81J 22.2J 9.8J 10.1J 0.08J 9.02J 14J 4.05CN,J 10.08J 2.60CN,J 0.051 7.23J 6.97J 16.3J 8.34J 15.3J 8.63J 7.10J 8.04J 6.6J 9.01 4.7J 8.1J 4.5J 12 8.6 12.2J 6.18J 9.52J 5.86J 21.2J 2.42J 12.9J 5.29J 6.03J 4.02J 12B 4.99J 16.5B 7.92J 8.79J 7.77J B S.00J 6.92J B 8.02J B 13.3 7.62J 13.9 7.26J 7.22J 8.191 8.7J 8.8J 4.2J 5.4J 9.OJ B 8.5J 13 9.7J 8.64J B 5.16J 6.81J, B 6.93J 2.89J 12.2B 9.94J B 5.93J 6.81J 3.73J 6.82J DM_ Page 2 of 9 May 2021 Table 3a Detected Groundwater Constituents - General Chemistry and Metals March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 CD-4 Rep 3-May-11 124,000 9,700 -- -- 206 0.9JB 17.6 0.62J - -- -- 8.39J 2.72JB CD-4 Rep (dup) 3-May-11 -- -- -- -- 0.21J 206 17.9 0.68J - - -- 8.98J 0.17J 2.85J CD-4 Rep 8-Nov-11 -- -- -- -- 0.14J 191 0.93J 18.2 1.00J - - -- 8.86J 9.44J CD-4 Rep 9-May-12 -- -- -- -- 184 1.69J 18.1 1.70J - 0.17J - -- 11.1 3.03J 16.1B CD-4 Rep 29-Nov-12 -- -- -- -- 172 13.7 0.62J - - -- 7.03J 2.84J 2.14JB CD-4 Rep 10-May-13 -- -- -- -- 75.5J 0.5J 2.71J 7.87J 1.94J - 0.88J - -- 11.2J 11.11 10.3 CD-4 Rep 7-Nov-13 -- -- -- -- 1.36J 60.4J 0.35J 0.07J 0.77J 5.31J 1.83J - 0.57J - -- 5.111 0.13J 32 4.40JB CD-4 Rep 7-May-14 -- -- -- -- 62.4J 0.31J 0.05J 3.25JB 5.02J 1.70J - 0.32J - -- 6.52J 22.2J 2.97JB CD-4 Rep 5-Nov-14 -- -- -- -- 70.OJ 0.31J 2.59J 1.46J - 0.72J - -- 4.29J 14.8JB 6.85J CD-4 Rep 6-May-15 -- -- -- -- 58.4J 0.39J 1.13J 5.94J 1.90J - - -- 4.72J 14.OJ 2.99J CD-4 Rep 27-Oct-15 -- -- -- -- 0.79J 57.9J 0.32J 2.18J 5.86J 8.95J - 1.26J - -- 10.7J 4.14CN,J 13.9J 8.34E-01,J 1302-CDLF-2006 CD-4 Rep 18-May-16 -- -- -- -- 1.09J 56.2J 0.46J 1.24J 7.31J 1.02J - 0.66J - -- 5.43J 18.OJ 3.70J CD-4 Rep 2-Nov-16 -- -- -- -- 46.3J 0.27J 1.35J 1.59J 1.18J - 0.901 - -- 4.18J 1.11J 18.1J 8.81J CD-4 Rep 9-May-17 -- -- -- -- 53.8J 0.46J 0.95J 5.91J 1.72J - 0.52J - -- 4.38J 10.5J 3.73J CD-4 Rep 31-Oct-17 -- -- -- -- 45.OJ 0.18J 0.97J 0.82J 0.58J - 0.45J - -- 2.75J 1.88J 7.68J 2.76J CD-4 Rep 6-Jun-18 -- -- -- -- 52.9J 0.41J 3.4J - 0.74J - -- 3.3J 13.3J 4.OJ CD-4 Rep 19-Dec-18 -- -- -- -- 1.1J 50.9J 0.96J 4.6J 5.5J 2.6J - 2.9J - -- 7.OJ 1.4J 15.5J 11.6 CD-4 Rep 7-May-19 -- -- -- -- 45.9 0.38J 2.3J 7.0 1.4J - 1.1 - -- 5.8 6.2J 13.7 CD-4 Rep 7-Nov-19 -- -- -- -- 1.4J 31.5 0.40J 1.8J 1.3J 1.4JB - 0.83J - -- 3.8J 21.0 9.5JB CD-4 Rep 18-May-20 -- -- -- -- 1.3J 70.9 0.48J 0.98J 6.6 0.77J - 0.57J - -- 5.1 11.6 12.5 CD-4 Rep 23-Sep-20 -- -- -- -- 56 0.52 2.2J 3.1J 1.5J - 1.4 - -- 5.6 11 7.3J CD-4 Rep 18-Mar-21 -- -- -- -- 1.9J 43 0.83 5.8 6.7 2.3J - 3.7 - -- 7.4 26 10 CD-7 1-Jul-14 66,000 7,600 15,000J 420,000 53.1J 0.131J 669 8.74J 4.11J 4.06J CD-7 5-Nov-14 77,000 8,500 18,000J 1,170,000 1.32J 118 3.74 15.1B 3.71J 40.0 21,100B 13.6 341 (1) 8.911 0.24J 75.8 19.4B CD-7 6-May-15 86,000 9,800 25,000J 660,000 1.71J 66.8J 0.28J 0.45J 4.36J 1,630B 0.86J 43.4 3.36J 4.14J 3.33J CD-7 27-Oct-15 81,000 11,000 28,000J 291,000 87.2J 1.12 5.33B-01,J 1.52J 16.6 6,560 4.69J 145 0.138J 6.61J 3.81CN,J 23.4J 11.3 CD-7 18-May-16 90,000 10,000 29,000J 282,000 74.8J 0.43J 2.18J 0.36J 4.74J 2,160 1.20J 59.4 0.164J 4.90J 10.2J 4.03J CD-7 1-Nov-16 100,000 13,000 34,000 413,000 82.6J 0.28J 1.21J 3.45J 1,200 1.06J 170 5.58J 4.98J CD-7 9-May-17 120,000 14,000 35,000 667,000 86.8J 0.34J 1.85J 4.64J 1,880B-01 1.70J 123 5.50J 8.70J 4.13J CD-7 31-Oct-17 114,000 15,000 39,000 1,100,000 94.5J 0.27J 1.30J 0.44J 3.85J 1,300 1.13J 219 6.26J 8.57J 4.18J 1302-CDLF-2006 CD-7 12-Jun-18 112,000 16,900 44,300J 350,000 1.OJ 97.9J 0.13J 3.1J 231J 215 7.6J 6.3J 6.3J CD-7 18-Jan-19 126,000 17,600 50,400 280,000 152 0.24J 2.OJ 12.5 7.8J 178 3,930 17.5J 5.1J CD-7 7-May-19 130,000 19,400 47,400 359,000 141 0.32J 0.12J 0.41J 5.0 6.3 64.9 2,570 13.7 1.91 7.2J CD-7 (dup) 7-May-19 129,000 19,100 48,000 391,000 147 0.36J 0.88J 5.4 9.9 847 0.31J 4,860 13.5 4.7J 8.8J CD-7 7-Nov-19 148,000 21,800 47,800 332,000 152 0.29J 0.93J 5.2 6.9B 1,240 0.60JB 2,860 10.9 0.073J 3.9J 10.9E CD-7 19-May-20 153,000 21,100 70,700 358,000 0.73J 142 0.34J 0.69J 7.9 6.3 318 0.27J 2,800 12.5 2.6J 10.3 CD-7 22-Sep-20 170,000 23,000 56,000 370,000 180 0.39J 0.25J 1.5J 8.4 25 1,100 1.3 3,100 14 0.25J 5.4 7.9J CD-7 16-Mar-21 180,000 27,000 57,000 370,000 0.61J 180 0.51J 0.21J 1.6J 13 55 1,300 1.1 3,900 0.19J 15 1 5.1 8.8J DM_ Page 3 of 9 May 2021 Table 3a Detected Groundwater Constituents - General Chemistry and Metals March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 CD-8 1-Jul-14 75,000 3,900 3,700J 120,000 0.256J 421 0.191J 14.4 12.6 78 26,600 6.55.1 1,360 13.8.1 0.238J 93.3 79.6 CD-8 5-Nov-14 86,000 3,500 253,000 83.4.1 1.64JB 1.20J 7.15.1 2,36013 0.59J 131 (1) 3.34.1 8.18J 11.013 CD-8 6-May-15 57,000 3,300 <5000 138,000 0.36J 53.8J13 0.48.1 4.13.1 1,030 0.27J 58.5 0.095J13 2.43.1 4.03J 9.73JB CD-8 27-Oct-15 72,000 3,600 1,1001 132,000 0.75J 1.79J 162 0.32J 0.21.1 5.88E-01,J 1.90J 38.6 2,960 2.29.1 95.2 9.53.1 3.65CN,J 11.2J 1,430 1302-CDLF-2006 CD-8 (dup) 27-Oct-15 70,000 3,500 130,000 0.40J 1.72J 160 0.33J 0.21.1 5.54E-01,J 1.80J 36.3 2,630 2.12.1 82.4 8.69J 4.20CN,J 10.6J 1,310 CD-8 19-May-16 115,000 2,000 <5,000 205,000 0.49J 1.52J 133 0.20J 3.54.1 1.40J 28.1 2,320 1.28.1 123 8.72J 13.2J 1,250 CD-8 (dup) 19-May-16 110,000 2,000 <5,000 215,000 1.27J 1.55J 136 0.23J 0.10J 4.41.1 1.63J 31.2 3,230 1.87.1 129 9.76J 14.8J 1,600 CD-8 1-Nov-16 90,000 3,400 <5,000 517,000H-02 94.6J 0.17.1 2.27.1 2.52J 15.6 3,350 1.06J 433 3.96J 18.1J 244 CD-8 (dup) 1-Nov-16 80,000 3,500 2,100J 428,OOO1-1-02 96.7J 0.21.1 3.11.1 2.47J 18.8 4,640 1.18J 412 4.09J 22.2J 247 CD-9 9-May-17 115,000 5,200 3,600J 85,000 155 7.28.1 8.73J 44.7 8,7006-01 1.03J 374 8.76J 0.11.1 34.2 25.3 CD-9 (dup) 9-May-17 110,000 5,700 3,600J 124,000 92.4J 0.10J 2.14.1 4.67J 14.1 2,6206-01 0.49J 236 5.56J 11.91 7.56.1 CD-9 31-Oct-17 111,000 5,000 3,400J 380,000 0.59J 307 0.56J 21.2 20.9 126 23,300 2.88.1 680 13.8J 2.39J 0.22J 93.0 62.9 CD-9 12-Jun-18 115,000 5,130 3,810J 183,000 1.1J 131 0.16J 6.2.1 4.0.1 30.4 5,380 0.98J 139 5.0.1 26.8 15.2 CD-9 18-Jan-19 130,000 6,300 8,520 189,000 95.3.1 0.050J 1.3.1 3.1J 374 158 6.8.1 3.9.1 3.OJ CD-9 (dup) 18-Jan-19 132,000 6,220 8,500 182,000 99.91 1.2.1 2.6.1 149 157 6.5.1 3.6.1 2.2.1 CD-9 7-May-19 118,000 6,460 6,340 214,000 96.8 1.1.1 2.5.1 162 188 6.6 4.1.1 2.9.1 1302-CDLF-2006 CD-9 7-Nov-19 123,000 5,930 4,560J 222,000 0.86J 104 1.4.1 1.5.1 6.213 963 0.16JB 166 6.0 9.0.1 8.2JB CD-9 (dup) 7-Nov-19 132,000 5,850 4,490J 191,000 0.95J 67.2 0.76J 3.5.1 4.5JB 667 0.20JB 179 4.2.1 9.5.1 6.1JB CD-9 20-May-20 136,000 5,190 3,840 218,000 0.82J 147 0.36J 10.6 7.0 53.3 9,790 1.7 334 9.6 0.088J 40.9 23.7 CD-9 (dup) 20-May-20 148,000 5,190 3,810 221,000 0.80J 155 0.34J 13.3 7.3 53.1 10,100 1.7 337 10.3 0.090J 41.3 23.4 CD-9 22-Sep-20 130,000 4,900 1,800 210,000 99 1.6.1 1.4.1 8.9 1,300 160 5.5 7.3 5.OJ CD-9 (dup) 22-Sep-20 130,000 4,900 1,800 200,000 170 0.28J 8.0 6.3 51 9,200 1.3 300 9.0 34 22 CD-9 16-Mar-21 130,000 5,300 2,500 190,000 100 3.1J 2.0.1 16 2,900 0.52J 180 5.9 13 7.2.1 CD-9 (dup) 16-Mar-21 130,000 5,300 2,500 200,000 120 0.16J 5.6 3.3.1 28 5,100 0.96J 230 7.0 21 12 Notes: 1. All units are in micrograms per liter (parts per billion). 2. * - Interim Maximum Allowable Concentration (IMAC) 3. NE - Standard Not Established; dup - Duplicate Sample; (-) - Not Analyzed 4. CD-4 Rep was installed as part of the proposed Phase 1 C&D Landfill expansion in January 2009. Beginning November 2011 samples collected from CD-4 Rep are only analyzed for Appendix I metals. 5. CD-3 was relocated on July 1, 2014, as part of the Phase 2 C&D Landfill expansion. CD-7 and -8 (formerly piezometers B-7 and -19) were added to the monitoring program in July 2014 as part of the Phase 2 C&D Landfill expansion. CD-3 and -8 were abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill Expansion. 6. CD-9 was installed on March 9, 2017, as part of the Phase 3 C&D Landfill Expansion. 7. J - Indicates the analytical result is an estimated concentration between the method detection limit and the adjusted reporting limit. 8. B, B-01- The analyte concentration detected in the method blank was greater than the method detection limit. 9. CN - Detected silver concentrations were determined to be the result of contamination from the preservative acid used. 10. H-02, H1- Analysis was completed outside of hold time. 11. S - The laboratory had a matrix spike/matrix spike detection failure. 12. Alkalinity, chloride, sulfate, and total dissolved solids were added to the sampling program in May 2010. 13. (1) - Not analyzed due to laboratory oversight. - Concentration exceeds the 15A NCAC 02L .0202 (North Carolina 2L) or IMAC Standard - Indicates the result is below the detection limit. DM_ Page 4 of 9 May 2021 Table 3b Detected Groundwater Constituents - Volatile Organic Compounds March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 CaNI Page 5 of 9 May 2021 Smith Table 3b Detected Groundwater Constituents - Volatile Organic Compounds March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 CaNI Page 6 of 9 May 2021 Smith Table 3b Detected Groundwater Constituents - Volatile Organic Compounds March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 Notes: 1. All units are in micrograms per liter (parts per billion). 2. dup - Duplicate Sample 3. CD-4 Rep was installed as part of the proposed Phase 1 C&D Landfill expansion in January 2009. 4. CD-3 was relocated on July 1, 2014, as part of the Phase 2 C&D Landfill expansion. CD-7 and -8 (formerly piezometers B-7 and -19) were added to the monitoring program in July 2014 as part of the Phase 2 C&D Landfill expansion. CD-3 and -8 were abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill Expansion. 5. CD-9 was installed on March 9, 2017, as part of the Phase 3 C&D Landfill Expansion. 6. J - Indicates the analytical result is an estimated concentration between the method detection limit and the adjusted reporting limit. 7. B - The analyte concentration detected in the method blank was greater than the method detection limit. 8. NE - Standard Not Established - Concentration exceeds the 15A NCAC 02L .0202 (North Carolina 2L) Standard. - Indicates the result is below the detection limit. Smith DM Page 7 of 9 May 2021 Table 3c Detected Surface Water Constituents - Metals and General Chemistry March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 AquaticValue SW-3 9-Nov-11 DRY DRY Freshwater SW-3 9-May-12 DRY DRY SW-3 29-Nov-12 DRY DRY SW-3 10-May-13 0.27J 1 1 152 1 1 1 2.23J 3.07.114.30.11 996 1 0.49J I 8876 I 14.68.110.10J 3.01J 33.4 60 1 20 1 240J 1 482 SW-3 5-Nov-13 DRY DRY SW-3 6-May-14 I 7.70J 1 301 2.41 0.22.130.113 58.3 1 39.9 1 67,6006 121.413 1 9,250 1 129.4.113.71J I 10.23J 1 1011 354 530 1 71 1 440 1 1,430 SW-3 4-Nov-14 DRY DRY SW-3 5-May-15 DRY DRY SW-3 27-Oct-15 DRY DRY 1302-CDLF-2006 SW-3 19-May-16 111.11 200 15.951 1 38.1117.11 22.4 1 59,700 1 48.11 576 1 1 15.5J 118.0 1 10.31J 1 180 1 85.3 25 1 3.2 1 47J I 908H-02 SW-3 3-Nov-16 DRY DRY SW-3 10-May-17 2.07.1 14.37.11 166 1 0.68J I 0.08J 1 11.2 117.8 1 14.0 19,93013-0113.16.11 2,770 1 1 8.85J I 2.78J I 10.06JI16.7JI442 60 1 16 1 190J 1 451 SW-3 31-Oct-17 DRY DRY SW-3 12-Jun-18 DRY DRY SW-3 18-Jan-19 10.1 1 2711 164 10.2811 1 112 19.1.11 8.9.1 1 3,440 1 2.2.1 1 3,130 1 1 12.8J I 2.4J I 1 147.6123.8 1,100 1 100 1 389 1 2,220 SW-3 7-May-19 DRY DRY SW-3 7-Nov-19 DRY DRY SW-3 SW-3 SW-3 20-May-20 25-Sep-20 16-Mar-21 0.33J 2.6J 1.9.1 72.2 34 27 0.31J 0.18J 10.2 2.5J 3.6J 2.5.1 11.5 6.2 5.0 6,190 1,800 5.2 0.99.1 3.7 185 42 3.1J 2.1J 1.6J 24.0 6.5 15.0 36.8 5.8.1 8.9J 40.3 - - 2.87 31.3 164 Notes: 1. Metal concentrations are in micrograms per liter (parts per billion). 2. General chemistry concentrations are in milligrams per liter (parts per million). 3. Standards obtained from section 15A NCAC 02B .0211 (North Carolina 213) or In -Stream Target Value Surface Water Standards for Class C Waters (June 2019). 4. (4) - A Standard for total chromium has not been established. The value provided is for chromium (III). S. * - North Carolina In -Stream Target Value 6. NS - No Standard 7. J - Indicates the analytical result is an estimated concentration between the method detection limit and the adjusted reporting limit. 8. B, B-01- The analyte concentration detected in the method blank was greater than the method detection limit. 9. H-02 - Total dissolved solids analysis was analyzed outside of hold time for SW-3. 10. (-) Not Analyzed Concentration exceeds the North Carolina 2B or In -Stream Target Value Freshwater Aquatic Life Standard for Class C Waters Indicates the result is below the detection limit. $m eth Page 8 of 9 May 2021 Table 3d Detected Surface Water Constituents - Volatile Organic Compounds March 2021 Semi -Annual Sampling Event Cabarrus County C&D Landfill Facility Permit Number 1302-CDLF-2006 Facility Permit Number Surface Water Code 2B or In -Stream Aquatic Life Sample Date Target Standard GJ C c a c ^ }+ N (6 0 °; 3 c N L U 2,000* NS 26,000* 100* v C c v i0 L C C 7 W X c CL N R o x ^' s o v r-I' W N 41 ++ � H NS 97* NS 26,000* 110,000* 11 North Carolina Value Freshwater 1 1 � Notes: 1. Volatile organic compound concentrations are in micrograms per liter (parts per billion). 2. Standards obtained from section 15A NCAC 02B .0211 (North Carolina 26) or In -Stream Target Value Surface Water Standards for Class C Waters (June 2019). 3. * - North Carolina In -Stream Target Value 4. NS - No Standard 5. J - Indicates the analytical result is an estimated concentration between the method detection limit and the adjusted reporting limit. - Concentration exceeds the North Carolina 2B or In -Stream Target Value Freshwater Aquatic Life Standard for Class C Waters - Indicates the result is below the detection limit. DM Page 9 of 9 May 2021 z N w+E ASS .•'` MGW-1 CD-1S 735.38 r SW-3� ,CD-ld 735.15 MGW-15 i MGW-14 CD-4 Rep 3� ?,A* CD-2\ r'&P 731.93 ♦% -� 723.63 Landfill CD-7`- 707.88. - - MGW-13 CD-9 `: 707.28A" Unit --- - - --_ MGW-17 - - - o o- - - Unit 1 \7jp MGW.12 702.0203 MGW-2 I r 689.34/ MW-8A /r _ 69350 - 709.62 ---I O* MGW-11 MGW 16 MWW\t%p 695.39 4 MW-A l l MW-G MW-5 A 709.50 / / 686.13 681.57 MW-11 _p'. 679.72 MW-X Unit 3 / I MW-B ' 702.53 I 679.26 \ - Borrow Area MGW-3 / MW-E Rep 680 / 1687.78 / SW-1 MW-D I / _ 700.18 MW-F 690-Mw-C 672.86 688.80 ` ` \ ` MW-E deed / 670 MGW-8 MGW-9 MW-K �� 674.75/ / 685.21 ` - _ _ � -4- / MW-I MGW.4� AMW-1d r 668.35 _ - - 660 680.09 AMW-15 / /SW-2 MGW-7 MW-H 677.21 678.80 MW-H deep AMW-25 Mw-3 656 678.47 676.42 659.52/ 670 MW AMW-2tl / 651.48 MW-L 680.19 666 660.82 666 MGW-6 MW-3 deep MW-L deep 662.05 662.40 MGW-5 Scale in Feet 0 S00 1000 Map Data Source: 2019 Aerial Photograph, Cabarrus County, North Carolina one Map. NxHgkllvl MGW-10 4 Groundwater Monitoring Well Surface Water Sample Location ♦ Landfill Gas Well Location Potentiometric Contour 680 - (dashed where inferred) Contour Interval = 10 Feet Appendix A aceAnalytical Report of Analysis CDM Smith 5400 Glenwood Avenue Suite 400 Raleigh, NC 27612 Attention: Mathew Colone Project Name: Cabarrus County LF-C & D Lot Number:WC17023 Date Completed:03/29/2021 04/04/2021 8:38 PM Approved and released by: Project Manager II: Cathy S. Dover =w�4 aecRFo���A16 TNI / AM Amflvue Acm^rmm Fvu rj (' 4eOfFAi� ACC R E OI TEO TESTINGL aORlTOAY The electronic signature above is the equivalent of a handwritten signature. This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC. Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 Tel:803-791-9700 Fax:803-791-9111 www.pacelabs.com Page 1 of 71 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 Case Narrative CDM Smith Lot Number: WC17023 This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary following this Case Narrative. The sample receiving date is documented in the header information associated with each sample. All results listed in this report relate only to the samples that are contained within this report. Sample receipt, sample analysis, and data review have been performed in accordance with the most current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace") Laboratory Quality Manual, standard operating procedures (SOPS), and Pace policies. Any exceptions to the TNI standards, the Laboratory Quality Manual, SOPS or policies are qualified on the results page or discussed below. Alkalinity For analysis batch 86219, a sample duplicate was run but did not reach an endpoint. The samples (WC17023-001 (CD-2), WC17023-002 (CD-7), WC17023-003 (CD-9), WC17023-004 (CD-1 D), WC17023-006 (DUP) and WC17023-008 (EQ BLANK) was reanalyzed for higher alkalinity. All QC in the batch passed and the results have been reported. If you have any questions regarding this report please contact the Pace Project Manager listed on the cover page. Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 whw.pacelabs.com Page 2 of 71 PACE ANALYTICAL SERVICES, LLC Sample Summary CDM Smith Lot Number: WC17023 Project Name: Cabarrus County LF-C & D Project Number: Sample Number Sample ID Matrix Date Sampled Date Received 001 CD-2 Aqueous 03/16/20210815 03/17/2021 002 CD-7 Aqueous 03/16/20210830 03/17/2021 003 CD-9 Aqueous 03/16/20210845 03/17/2021 004 CD-1 D Aqueous 03/16/2021 0925 03/17/2021 005 SW-3 Aqueous 03/16/20211000 03/17/2021 006 DUP Aqueous 03/16/20210800 03/17/2021 007 TRIP BLANK Aqueous 03/16/2021 03/17/2021 008 EQ BLANK Aqueous 03/16/2021 0850 03/17/2021 (8 samples) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 3 of 71 PACE ANALYTICAL SERVICES, LLC Detection Summary CDM Smith Lot Number: WC17023 Project Name: Cabarrus County LF-C & D Project Number: Sample Sample ID Matrix Parameter Method Result Q Units Page 001 CD-2 Aqueous Alkalinity @ pH 4.5 su SM 232013- 110 mg CaCO3/L 7 001 CD-2 Aqueous Chloride 9056A 9.7 mg/L 7 001 CD-2 Aqueous Sulfate 9056A 35 mg/L 7 001 CD-2 Aqueous TDS SM 2540C- 250 mg/L 7 001 CD-2 Aqueous 1,1-Dichloroethane 8260D 2.8 ug/L 8 001 CD-2 Aqueous Barium 6020B 56 ug/L 11 001 CD-2 Aqueous Beryllium 6020B 0.17 J ug/L 11 001 CD-2 Aqueous Chromium 6020B 3.1 J ug/L 11 001 CD-2 Aqueous Cobalt 6020B 1.7 J ug/L 11 001 CD-2 Aqueous Copper 6020B 4.1 J ug/L 11 001 CD-2 Aqueous Iron 6020B 2800 S ug/L 11 001 CD-2 Aqueous Lead 6020B 1.9 ug/L 11 001 CD-2 Aqueous Manganese 6020B 79 ug/L 11 001 CD-2 Aqueous Nickel 6020B 3.1 J ug/L 11 001 CD-2 Aqueous Vanadium 6020B 8.6 ug/L 11 001 CD-2 Aqueous Zinc 6020B 9.7 J ug/L 11 002 CD-7 Aqueous Alkalinity @ pH 4.5 su SM 232013- 180 mg CaCO3/L 12 002 CD-7 Aqueous Chloride 9056A 27 mg/L 12 002 CD-7 Aqueous Sulfate 9056A 57 mg/L 12 002 CD-7 Aqueous TDS SM 2540C- 370 mg/L 12 002 CD-7 Aqueous Benzene 8260D 0.93 ug/L 13 002 CD-7 Aqueous Chloroethane 8260D 0.76 ug/L 13 002 CD-7 Aqueous 1,1-Dichloroethane 8260D 0.61 ug/L 13 002 CD-7 Aqueous cis- 1,2-Dichloroethene 8260D 1.7 ug/L 13 002 CD-7 Aqueous Methylene chloride 8260D 1.2 ug/L 13 002 CD-7 Aqueous Tetrahydrofuran 8260D 15 ug/L 13 002 CD-7 Aqueous Trichlorofluoromethane 8260D 0.51 ug/L 14 002 CD-7 Aqueous Vinyl chloride 8260D 1.5 ug/L 14 002 CD-7 Aqueous Mercury 7470A 0.00019 J mg/L 15 002 CD-7 Aqueous Antimony 6020B 0.61 J ug/L 16 002 CD-7 Aqueous Barium 6020B 180 ug/L 16 002 CD-7 Aqueous Beryllium 6020B 0.51 ug/L 16 002 CD-7 Aqueous Cadmium 6020B 0.21 J ug/L 16 002 CD-7 Aqueous Chromium 6020B 1.6 J ug/L 16 002 CD-7 Aqueous Cobalt 6020B 13 ug/L 16 002 CD-7 Aqueous Copper 6020B 55 ug/L 16 002 CD-7 Aqueous Iron 6020B 1300 ug/L 16 002 CD-7 Aqueous Lead 6020B 1.1 ug/L 16 002 CD-7 Aqueous Manganese 6020B 3900 ug/L 16 002 CD-7 Aqueous Nickel 6020B 15 ug/L 16 002 CD-7 Aqueous Vanadium 6020B 5.1 ug/L 16 002 CD-7 Aqueous Zinc 6020B 8.8 J ug/L 16 003 CD-9 Aqueous Alkalinity @ pH 4.5 su SM 232013- 130 mg CaCO3/L 17 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 4 of 71 Detection Summary (Continued) Lot Number: WC17023 Sample Sample ID Matrix Parameter Method Result Q Units Page 003 CD-9 Aqueous Chloride 9056A 5.3 mg/L 17 003 CD-9 Aqueous Sulfate 9056A 2.5 mg/L 17 003 CD-9 Aqueous TDS SM 2540C- 190 mg/L 17 003 CD-9 Aqueous 1,4-Dichlorobenzene 8260D 0.95 ug/L 18 003 CD-9 Aqueous 1,1-Dichloroethane 8260D 1.4 ug/L 18 003 CD-9 Aqueous cis- 1,2-Dichloroethene 8260D 5.2 ug/L 18 003 CD-9 Aqueous Barium 6020B 100 ug/L 21 003 CD-9 Aqueous Chromium 6020B 3.1 J ug/L 21 003 CD-9 Aqueous Cobalt 6020B 2.0 J ug/L 21 003 CD-9 Aqueous Copper 6020B 16 ug/L 21 003 CD-9 Aqueous Iron 6020B 2900 ug/L 21 003 CD-9 Aqueous Lead 6020B 0.52 J ug/L 21 003 CD-9 Aqueous Manganese 6020B 180 ug/L 21 003 CD-9 Aqueous Nickel 6020B 5.9 ug/L 21 003 CD-9 Aqueous Vanadium 6020B 13 ug/L 21 003 CD-9 Aqueous Zinc 6020B 7.2 J ug/L 21 004 CD-1 D Aqueous Alkalinity @ pH 4.5 su SM 232013- 53 mg CaCO3/1- 22 004 CD-1 D Aqueous Chloride 9056A 3.1 mg/L 22 004 CD-1 D Aqueous Sulfate 9056A 2.5 mg/L 22 004 CD-1 D Aqueous TDS SM 2540C- 110 mg/L 22 004 CD-1 D Aqueous Barium 6020B 27 ug/L 26 004 CD-1 D Aqueous Iron 6020B 310 ug/L 26 004 CD-1 D Aqueous Manganese 6020B 7.0 ug/L 26 004 CD-1 D Aqueous Vanadium 6020B 4.8 J ug/L 26 004 CD-1 D Aqueous Zinc 6020B 3.1 J ug/L 26 005 SW-3 Aqueous Barium 6020B 27 ug/L 30 005 SW-3 Aqueous Chromium 6020B 3.6 J ug/L 30 005 SW-3 Aqueous Copper 6020B 5.0 ug/L 30 005 SW-3 Aqueous Lead 6020B 3.7 ug/L 30 005 SW-3 Aqueous Nickel 6020B 1.6 J ug/L 30 005 SW-3 Aqueous Vanadium 6020B 15 ug/L 30 005 SW-3 Aqueous Zinc 6020B 8.9 J ug/L 30 006 DUP Aqueous Alkalinity @ pH 4.5 su SM 232013- 130 mg CaCO3/1- 31 006 DUP Aqueous Chloride 9056A 5.3 mg/L 31 006 DUP Aqueous Sulfate 9056A 2.5 mg/L 31 006 DUP Aqueous TDS SM 2540C- 200 mg/L 31 006 DUP Aqueous 1,4-Dichlorobenzene 8260D 0.95 ug/L 32 006 DUP Aqueous 1,1-Dichloroethane 8260D 1.5 ug/L 32 006 DUP Aqueous cis- 1,2-Dichloroethene 8260D 5.2 ug/L 32 006 DUP Aqueous Barium 6020B 120 ug/L 35 006 DUP Aqueous Beryllium 6020B 0.16 J ug/L 35 006 DUP Aqueous Chromium 6020B 5.6 ug/L 35 006 DUP Aqueous Cobalt 6020B 3.3 J ug/L 35 006 DUP Aqueous Copper 6020B 28 ug/L 35 006 DUP Aqueous Iron 6020B 5100 ug/L 35 006 DUP Aqueous Lead 6020B 0.96 J ug/L 35 006 DUP Aqueous Manganese 6020B 230 ug/L 35 006 DUP Aqueous Nickel 6020B 7.0 ug/L 35 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 5 of 71 Detection Summary (Continued) Lot Number: WC17023 Sample Sample ID Matrix Parameter Method Result Q Units Page 006 DUP Aqueous Vanadium 6020B 21 ug/L 35 006 DUP Aqueous Zinc 6020B 12 ug/L 35 008 EQ BLANK Aqueous Zinc 6020B 3.1 J ug/L 43 (94 detections) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 6 of 71 Inorganic non-metals Client:CDM Smith Laboratory ID:WC17023-001 Description: CD-2 Matrix: Aqueous Date Sampled:03/16/2021 0815 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 03/18/2021 1627 DAK 86219 1 (Chloride) 9056A 1 03/19/2021 2020 AMR 86468 1 (Sulfate) 9056A 1 03/19/2021 2020 AMR 86469 1 (TDS) SM 2540C-2011 1 03/19/2021 1749 SJL 86310 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su Chloride Sulfate TDS SM 2320B-2011 110 20 20 mg CaCO3/L 1 9056A 9.7 1.0 0.25 mg/L 1 9056A 35 1.0 0.25 mg/L 1 SM 254OC-2011 250 25 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 7 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-001 Description: CD-2 Matrix: Aqueous Date Sampled:03/16/2021 0815 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211530 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 2.8 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 8 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-001 Description: CD-2 Matrix: Aqueous Date Sampled:03/16/2021 0815 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211530 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 109 70-130 1,2-Dichloroethane-d4 97 70-130 Toluene-d8 109 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 9 of 71 CVAA Client:CDM Smith Laboratory ID:WC17023-001 Description: CD-2 Matrix: Aqueous Date Sampled:03/16/2021 0815 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/26/2021 1417 CMS2 03/25/2021 1222 86479 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 10 of 71 ICP-MS Metals Client:CDM Smith Laboratory ID:WC17023-001 Description: CD-2 Matrix: Aqueous Date Sampled:03/16/2021 0815 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/19/2021 0216 BPK Prep Date Batch 03/18/2021 1243 86060 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 56 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.17 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.1 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 1.7 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 4.1 J 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 2800 S 50 13 ug/L 1 Lead 7439-92-1 6020B 1.9 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 79 5.0 1.3 ug/L 1 Nickel 7440-02-0 6020B 3.1 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 8.6 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 9.7 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 11 of 71 Inorganic non-metals Client:CDM Smith Laboratory ID:WC17023-002 Description: CD-7 Matrix: Aqueous Date Sampled:03/16/2021 0830 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 03/18/2021 1633 DAK 86219 1 (Chloride) 9056A 1 03/19/2021 2039 AMR 86468 1 (Sulfate) 9056A 1 03/19/2021 2039 AMR 86469 1 (TDS) SM 2540C-2011 1 03/19/2021 1749 SJL 86310 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su Chloride Sulfate TDS SM 2320B-2011 180 20 20 mg CaCO3/L 1 9056A 27 1.0 0.25 mg/L 1 9056A 57 1.0 0.25 mg/L 1 SM 254OC-2011 370 25 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 12 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-002 Description: CD-7 Matrix: Aqueous Date Sampled:03/16/2021 0830 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211555 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.93 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.76 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.61 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 1.7 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 1.2 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 15 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 13 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-002 Description: CD-7 Matrix: Aqueous Date Sampled:03/16/2021 0830 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211555 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.51 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 1.5 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 110 70-130 1,2-Dichloroethane-d4 92 70-130 Toluene-d8 105 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 14 of 71 CVAA Client:CDM Smith Laboratory ID:WC17023-002 Description: CD-7 Matrix: Aqueous Date Sampled:03/16/2021 0830 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/26/2021 1419 CMS2 03/25/2021 1222 86479 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00019 J 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 15 of 71 ICP-MS Metals Client:CDM Smith Laboratory ID:WC17023-002 Description: CD-7 Matrix: Aqueous Date Sampled:03/16/2021 0830 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/19/2021 0254 BPK 6020B 100 03/19/2021 1857 BPK Prep Date Batch 03/18/2021 1243 86060 03/18/2021 1243 86060 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 0.61 J 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 180 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.51 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.21 J 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.6 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 13 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 55 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 1300 50 13 ug/L 1 Lead 7439-92-1 6020B 1.1 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 3900 500 130 ug/L 2 Nickel 7440-02-0 6020B 15 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.1 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 8.8 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 16 of 71 Inorganic non-metals Client:CDM Smith Laboratory ID:WC17023-003 Description: CD-9 Matrix: Aqueous Date Sampled:03/16/2021 0845 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 03/18/2021 1640 DAK 86219 1 (Chloride) 9056A 1 03/19/2021 2058 AMR 86468 1 (Sulfate) 9056A 1 03/19/2021 2058 AMR 86469 1 (TDS) SM 2540C-2011 1 03/19/2021 1749 SJL 86310 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su Chloride Sulfate TDS SM 2320B-2011 130 20 20 mg CaCO3/L 1 9056A 5.3 1.0 0.25 mg/L 1 9056A 2.5 1.0 0.25 mg/L 1 SM 254OC-2011 190 25 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 17 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-003 Description: CD-9 Matrix: Aqueous Date Sampled:03/16/2021 0845 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211621 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.95 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 1.4 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 5.2 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 18 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-003 Description: CD-9 Matrix: Aqueous Date Sampled:03/16/2021 0845 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211621 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 110 70-130 1,2-Dichloroethane-d4 96 70-130 Toluene-d8 108 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 19 of 71 CVAA Client:CDM Smith Laboratory ID:WC17023-003 Description: CD-9 Matrix: Aqueous Date Sampled:03/16/2021 0845 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/26/2021 1422 CMS2 03/25/2021 1222 86479 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 20 of 71 ICP-MS Metals Client:CDM Smith Laboratory ID:WC17023-003 Description: CD-9 Matrix: Aqueous Date Sampled:03/16/2021 0845 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/19/2021 0301 BPK Prep Date Batch 03/18/2021 1243 86060 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 100 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.1 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 2.0 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 16 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 2900 50 13 ug/L 1 Lead 7439-92-1 6020B 0.52 J 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 180 5.0 1.3 ug/L 1 Nickel 7440-02-0 6020B 5.9 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 13 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 7.2 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 21 of 71 Inorganic non-metals Client:CDM Smith Laboratory ID:WC17023-004 Description: CD-1D Matrix: Aqueous Date Sampled:03/16/2021 0925 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 03/18/2021 1645 DAK 86219 1 (Chloride) 9056A 1 03/19/2021 2117 AMR 86468 1 (Sulfate) 9056A 1 03/19/2021 2117 AMR 86469 1 (TDS) SM 2540C-2011 1 03/19/2021 1749 SJL 86310 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su Chloride Sulfate TDS SM 2320B-2011 53 20 20 mg CaCO3/L 1 9056A 3.1 1.0 0.25 mg/L 1 9056A 2.5 1.0 0.25 mg/L 1 SM 254OC-2011 110 25 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 22 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-004 Description: CD-1D Matrix: Aqueous Date Sampled:03/16/2021 0925 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211646 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 23 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-004 Description: CD-1D Matrix: Aqueous Date Sampled:03/16/2021 0925 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211646 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 108 70-130 1,2-Dichloroethane-d4 92 70-130 Toluene-d8 105 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 24 of 71 CVAA Client:CDM Smith Laboratory ID:WC17023-004 Description: CD-1D Matrix: Aqueous Date Sampled:03/16/2021 0925 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/26/2021 1425 CMS2 03/25/2021 1222 86479 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 25 of 71 ICP-MS Metals Client:CDM Smith Laboratory ID:WC17023-004 Description: CD-1D Matrix: Aqueous Date Sampled:03/16/2021 0925 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/19/2021 0309 BPK Prep Date Batch 03/18/2021 1243 86060 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 27 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 310 50 13 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 7.0 5.0 1.3 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.8 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 3.1 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 26 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC19017-001 Description: CD-4 REP Matrix: Aqueous Date Sampled:03/18/2021 0815 Project Name: Cabarrus County 2021 Date Received:03/19/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/23/20211221 TML 86561 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 7 of 76 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC19017-001 Description: CD-4 REP Matrix: Aqueous Date Sampled:03/18/2021 0815 Project Name: Cabarrus County 2021 Date Received:03/19/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/23/20211221 TML 86561 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 104 70-130 88 70-130 95 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 8 of 76 ICP-MS Metals Client:CDM Smith Laboratory ID:WC19017-001 Description: CD-4 REP Matrix: Aqueous Date Sampled:03/18/2021 0815 Project Name: Cabarrus County 2021 Date Received:03/19/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/23/2021 1345 BNW Prep Date Batch 03/23/2021 0307 86430 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 1.9 J 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 43 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.83 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.8 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 6.7 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 2.3 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 3.7 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 7.4 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 26 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 9 of 76 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-005 Description: SW-3 Matrix: Aqueous Date Sampled:03/16/2021 1000 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211711 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 27 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-005 Description: SW-3 Matrix: Aqueous Date Sampled:03/16/2021 1000 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211711 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 103 70-130 1,2-Dichloroethane-d4 89 70-130 Toluene-d8 103 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 28 of 71 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:WC17023-005 Description: SW-3 Matrix: Aqueous Date Sampled:03/16/2021 1000 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 03/23/2021 1820 JDF 86623 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.0 U 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 93 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 29 of 71 ICP-MS Metals Client:CDM Smith Laboratory ID:WC17023-005 Description: SW-3 Matrix: Aqueous Date Sampled:03/16/2021 1000 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/19/2021 0331 BPK Prep Date Batch 03/18/2021 1243 86060 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 27 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.6 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 3.7 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 1.6 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 15 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 8.9 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 30 of 71 Inorganic non-metals Client:CDM Smith Laboratory ID:WC17023-006 Description: DUP Matrix: Aqueous Date Sampled:03/16/2021 0800 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 03/18/2021 1700 DAK 86219 1 (Chloride) 9056A 1 03/19/2021 2136 AMR 86468 1 (Sulfate) 9056A 1 03/19/2021 2136 AMR 86469 1 (TDS) SM 2540C-2011 1 03/19/2021 1749 SJL 86310 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su Chloride Sulfate TDS SM 2320B-2011 130 20 20 mg CaCO3/L 1 9056A 5.3 1.0 0.25 mg/L 1 9056A 2.5 1.0 0.25 mg/L 1 SM 254OC-2011 200 25 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 31 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-006 Description: DUP Matrix: Aqueous Date Sampled:03/16/2021 0800 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211736 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.95 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 1.5 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 5.2 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 32 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-006 Description: DUP Matrix: Aqueous Date Sampled:03/16/2021 0800 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211736 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 110 70-130 1,2-Dichloroethane-d4 94 70-130 Toluene-d8 108 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 33 of 71 CVAA Client:CDM Smith Laboratory ID:WC17023-006 Description: DUP Matrix: Aqueous Date Sampled:03/16/2021 0800 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/26/2021 1427 CMS2 03/25/2021 1222 86479 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 34 of 71 ICP-MS Metals Client:CDM Smith Laboratory ID:WC17023-006 Description: DUP Matrix: Aqueous Date Sampled:03/16/2021 0800 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/19/2021 0338 BPK Prep Date Batch 03/18/2021 1243 86060 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 120 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.16 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.6 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 3.3 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 28 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 5100 50 13 ug/L 1 Lead 7439-92-1 6020B 0.96 J 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 230 5.0 1.3 ug/L 1 Nickel 7440-02-0 6020B 7.0 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 21 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 12 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 35 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-007 Description: TRIP BLANK Matrix: Aqueous Date Sampled:03/16/2021 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211237 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 36 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-007 Description: TRIP BLANK Matrix: Aqueous Date Sampled:03/16/2021 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211237 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 112 70-130 1,2-Dichloroethane-d4 99 70-130 Toluene-d8 111 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 37 of 71 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:WC17023-007 Description: TRIP BLANK Matrix: Aqueous Date Sampled:03/16/2021 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 03/23/2021 1845 JDF 86623 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.0 U 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 92 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 38 of 71 Inorganic non-metals Client:CDM Smith Laboratory ID:WC17023-008 Description: EQ BLANK Matrix: Aqueous Date Sampled:03/16/2021 0850 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 03/18/2021 1704 DAK 86219 1 (Chloride) 9056A 1 03/19/2021 2310 AMR 86468 1 (Sulfate) 9056A 1 03/19/2021 2310 AMR 86469 1 (TDS) SM 2540C-2011 1 03/19/2021 1749 SJL 86310 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su Chloride Sulfate TDS SM 2320B-2011 20 U 20 20 mg CaCO3/L 1 9056A 1.0 U 1.0 0.25 mg/L 1 9056A 1.0 U 1.0 0.25 mg/L 1 SM 2540C-2011 25 U 25 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 39 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-008 Description: EQ BLANK Matrix: Aqueous Date Sampled:03/16/2021 0850 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211301 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 40 of 71 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC17023-008 Description: EQ BLANK Matrix: Aqueous Date Sampled:03/16/2021 0850 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20211301 TML 86441 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 108 70-130 1,2-Dichloroethane-d4 94 70-130 Toluene-d8 107 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 41 of 71 CVAA Client:CDM Smith Laboratory ID:WC17023-008 Description: EQ BLANK Matrix: Aqueous Date Sampled:03/16/2021 0850 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/26/2021 1435 CMS2 03/25/2021 1222 86479 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 42 of 71 ICP-MS Metals Client:CDM Smith Laboratory ID:WC17023-008 Description: EQ BLANK Matrix: Aqueous Date Sampled:03/16/2021 0850 Project Name: Cabarrus County LF-C & D Date Received:03/17/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/19/2021 0346 BPK Prep Date Batch 03/18/2021 1243 86060 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 5.0 U 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 50 U 50 13 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 5.0 U 5.0 1.3 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 3.1 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 43 of 71 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: WC17023 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 44 of 71 Inorganic non-metals - MB Sample ID: WQ86219-001 Matrix: Aqueous Batch: 86219 Analytical Method: SM 2320B-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Alkalinity @ pH 4.5 su 20 U 1 20 20 mg CaCO3/L 03/18/2021 1613 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 45 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - LCS Sample ID: WQ86219-002 Matrix: Aqueous Batch: 86219 Analytical Method: SM 2320B-2011 Spike Amount Result %Rec Parameter (mg CaCO3/L) (mg CaCO3/L) Q Dil % Rec Limit Analysis Date Alkalinity @ pH 4.5 su 100 100 1 103 90-110 03/18/2021 1609 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 46 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - MB Sample ID: WQ86310-001 Matrix: Aqueous Batch: 86310 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ DL Units Analysis Date TDS 25 U 1 25 25 mg/L 03/19/2021 1749 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 47 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - LCS Sample ID: WQ86310-002 Matrix: Aqueous Batch: 86310 Analytical Method: SM 2540C-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 98 90-110 03/19/2021 1749 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 48 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - MB Sample ID: WQ86468-001 Matrix: Aqueous Batch:86468 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Chloride 1.0 U 1 1.0 0.25 mg/L 03/19/2021 1458 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 49 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - LCS Sample ID: WQ86468-002 Matrix: Aqueous Batch:86468 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 21 1 103 80-120 03/19/2021 1536 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 50 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - MS Sample ID: WC17023-OO6MS Matrix: Aqueous Batch:86468 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 5.3 10 16 1 105 80-120 03/19/2021 2154 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 51 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - MSD Sample ID: WC17023-OO6MD Matrix: Aqueous Batch:86468 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Chloride 5.3 10 16 1 106 0.71 80-120 20 03/19/2021 2251 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 52 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - MB Sample ID: WQ86469-001 Matrix: Aqueous Batch: 86469 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate 1.0 U 1 1.0 0.25 mg/L 03/19/2021 1458 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 53 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - LCS Sample ID: WQ86469-002 Matrix: Aqueous Batch: 86469 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 101 80-120 03/19/2021 1536 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 54 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - MS Sample ID: WC17023-OO6MS Matrix: Aqueous Batch: 86469 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 2.5 10 12 1 93 80-120 03/19/2021 2154 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 55 of 71 QC Data for Lot Number: WC17023 Inorganic non-metals - MSD Sample ID: WC17023-OO6MD Matrix: Aqueous Batch: 86469 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfate 2.5 10 12 1 94 0.44 80-120 20 03/19/2021 2251 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 56 of 71 QC Data for Lot Number: WC17023 Volatile Organic Compounds by GC/MS - MB Sample ID: WQ86441-001 Matrix: Aqueous Batch: 86441 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone 10 U 1 10 4.0 ug/L 03/22/2021 1032 Acrylonitrile 5.0 U 1 5.0 0.80 ug/L 03/22/2021 1032 Benzene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Bromochloromethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Bromodichloromethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Bromoform 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Bromomethane (Methyl bromide) 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 2-Butanone (MEK) 10 U 1 10 2.0 ug/L 03/22/2021 1032 Carbon disulfide 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Carbon tetrachloride 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Chlorobenzene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Chloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Chloroform 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Chloromethane (Methyl chloride) 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 1,2-Dibromo-3-chloropropane (DBCP) 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Dibromochloromethane 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1032 1,2-Dibromoethane (EDB) 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1032 Dibromomethane (Methylene bromide) 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1032 trans- 1,4-Dichloro-2-butene 2.0 u 1 2.0 0.40 ug/L 03/22/2021 1032 1,2-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1032 1,4-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1032 1,1-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1032 1,2-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1032 1,1-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 cis- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 trans- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 1,2-Dichloropropane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 cis- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 trans- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Ethylbenzene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 2-Hexanone 10 U 1 10 2.0 ug/L 03/22/2021 1032 Methacrylonitrile 5.0 U 1 5.0 2.0 ug/L 03/22/2021 1032 Methyl iodide (lodomethane) 5.0 U 1 5.0 0.40 ug/L 03/22/2021 1032 4-Methyl-2-pentanone 10 U 1 10 2.0 ug/L 03/22/2021 1032 Methylene chloride 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Styrene 0.50 U 1 0.50 0.41 ug/L 03/22/2021 1032 1,1,1,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 1,1,2,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Tetrachloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Tetrahydrofuran 5.0 U 1 5.0 1.0 ug/L 03/22/2021 1032 Toluene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 1,1,1-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 1,1,2-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Trichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 57 of 71 QC Data for Lot Number: WC17023 Volatile Organic Compounds by GC/MS - MB Sample ID: WQ86441-001 Matrix: Aqueous Batch:86441 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Trichlorofluoromethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 1,2,3-Trichloropropane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Vinyl acetate 5.0 U 1 5.0 1.2 ug/L 03/22/2021 1032 Vinyl chloride 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1032 Xylenes (total) 1.0 U 1 1.0 0.40 ug/L 03/22/2021 1032 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 111 70-130 1,2-Dichloroethane-d4 92 70-130 Toluene-d8 108 70-130 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: WC17023 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 58 of 71 Volatile Organic Compounds by GC/MS - LCS Sample ID: WQ86441-002 Matrix: Aqueous Batch: 86441 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 110 1 114 60-140 03/22/2021 0942 Acrylonitrile 100 100 1 103 70-130 03/22/2021 0942 Benzene 50 52 1 103 70-130 03/22/2021 0942 Bromochloromethane 50 47 1 93 70-130 03/22/2021 0942 Bromodichloromethane 50 47 1 94 70-130 03/22/2021 0942 Bromoform 50 45 1 89 70-130 03/22/2021 0942 Bromomethane (Methyl bromide) 50 49 1 99 70-130 03/22/2021 0942 2-Butanone (MEK) 100 110 1 110 70-130 03/22/2021 0942 Carbon disulfide 50 51 1 101 70-130 03/22/2021 0942 Carbon tetrachloride 50 46 1 92 70-130 03/22/2021 0942 Chlorobenzene 50 49 1 98 70-130 03/22/2021 0942 Chloroethane 50 49 1 97 70-130 03/22/2021 0942 Chloroform 50 47 1 94 70-130 03/22/2021 0942 Chloromethane (Methyl chloride) 50 51 1 103 60-140 03/22/2021 0942 1,2-Dibromo-3-chloropropane (DBCP) 50 48 1 97 70-130 03/22/2021 0942 Dibromochloromethane 50 46 1 92 70-130 03/22/2021 0942 1,2-Dibromoethane (EDB) 50 48 1 96 70-130 03/22/2021 0942 Dibromomethane (Methylene bromide) 50 45 1 90 70-130 03/22/2021 0942 trans- 1,4-Dichloro-2-butene 50 47 1 93 70-130 03/22/2021 0942 1,2-Dichlorobenzene 50 49 1 99 70-130 03/22/2021 0942 1,4-Dichlorobenzene 50 48 1 97 70-130 03/22/2021 0942 1,1-Dichloroethane 50 50 1 99 70-130 03/22/2021 0942 1,2-Dichloroethane 50 44 1 89 70-130 03/22/2021 0942 1,1-Dichloroethene 50 50 1 100 70-130 03/22/2021 0942 cis- 1,2-Dichloroethene 50 47 1 94 70-130 03/22/2021 0942 trans- 1,2-Dichloroethene 50 51 1 102 70-130 03/22/2021 0942 1,2-Dichloropropane 50 51 1 102 70-130 03/22/2021 0942 cis- 1,3-Dichloropropene 50 52 1 103 70-130 03/22/2021 0942 trans- 1,3-Dichloropropene 50 49 1 98 70-130 03/22/2021 0942 Ethylbenzene 50 50 1 100 70-130 03/22/2021 0942 2-Hexanone 100 99 1 99 70-130 03/22/2021 0942 Methacrylonitrile 250 260 1 106 70-130 03/22/2021 0942 Methyl iodide (lodomethane) 50 50 1 101 70-130 03/22/2021 0942 4-Methyl-2-pentanone 100 98 1 98 70-130 03/22/2021 0942 Methylene chloride 50 49 1 98 70-130 03/22/2021 0942 Styrene 50 49 1 99 70-130 03/22/2021 0942 1,1,1,2-Tetrachloroethane 50 47 1 93 70-130 03/22/2021 0942 1,1,2,2-Tetrachloroethane 50 50 1 100 70-130 03/22/2021 0942 Tetrachloroethene 50 48 1 96 70-130 03/22/2021 0942 Tetrahydrofuran 50 51 1 102 70-130 03/22/2021 0942 Toluene 50 51 1 102 70-130 03/22/2021 0942 1,1,1-Trichloroethane 50 45 1 89 70-130 03/22/2021 0942 1,1,2-Trichloroethane 50 50 1 100 70-130 03/22/2021 0942 Trichloroethene 50 49 1 98 70-130 03/22/2021 0942 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 59 of 71 QC Data for Lot Number: WC17023 Volatile Organic Compounds by GC/MS - LCS Sample ID: WQ86441-002 Matrix: Aqueous Batch:86441 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Trichlorofluoromethane 50 45 1 90 70-130 03/22/2021 0942 1,2,3-Trichloropropane 50 49 1 99 70-130 03/22/2021 0942 Vinyl acetate 50 52 1 104 60-140 03/22/2021 0942 Vinyl chloride 50 51 1 103 70-130 03/22/2021 0942 Xylenes (total) 100 99 1 99 70-130 03/22/2021 0942 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 102 70-130 1,2-Dichloroethane-d4 89 70-130 Toluene-d8 100 70-130 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: WC17023 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 60 of 71 Volatile Organic Compounds by GC/MS (SIM) - MB Sample ID: WQ86623-001 Matrix: Aqueous Batch:86623 Prep Method: 5030E Analytical Method: 8260D (SIM) Parameter Result Q Dil LOQ DL Units Analysis Date 1,4-Dioxane 3.0 U 1 3.0 1.0 ug/L 03/23/2021 1141 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 90 40-170 U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 61 of 71 QC Data for Lot Number: WC17023 Volatile Organic Compounds by GC/MS (SIM) - LCS Sample ID: WQ86623-002 Matrix: Aqueous Batch:86623 Prep Method: 5030E Analytical Method: 8260D (SIM) Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,4-Dioxane 50 48 1 96 70-130 03/23/2021 0916 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 105 40-170 U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 62 of 71 QC Data for Lot Number: WC17023 ICP-MS Metals - MB Sample ID: WQ86060-001 Matrix: Aqueous Batch: 86060 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/18/2021 1243 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony 2.0 U 1 2.0 0.50 ug/L 03/19/2021 0032 Arsenic 2.0 U 1 2.0 1.3 ug/L 03/19/2021 0032 Barium 5.0 U 1 5.0 1.3 ug/L 03/19/2021 0032 Beryllium 0.40 U 1 0.40 0.15 ug/L 03/19/2021 0032 Cadmium 0.50 U 1 0.50 0.13 ug/L 03/19/2021 0032 Chromium 5.0 U 1 5.0 1.3 ug/L 03/19/2021 0032 Cobalt 5.0 U 1 5.0 1.3 ug/L 03/19/2021 0032 Copper 5.0 U 1 5.0 1.3 ug/L 03/19/2021 0032 Iron 50 U 1 50 13 ug/L 03/19/2021 0032 Lead 1.0 U 1 1.0 0.25 ug/L 03/19/2021 0032 Manganese 5.0 U 1 5.0 1.3 ug/L 03/19/2021 0032 Nickel 5.0 U 1 5.0 1.3 ug/L 03/19/2021 0032 Selenium 5.0 U 1 5.0 1.3 ug/L 03/19/2021 0032 Silver 1.0 U 1 1.0 0.25 ug/L 03/19/2021 0032 Thallium 0.50 U 1 0.50 0.15 ug/L 03/19/2021 0032 Vanadium 5.0 U 1 5.0 2.5 ug/L 03/19/2021 0032 Zinc 10 U 1 10 2.5 ug/L 03/19/2021 0032 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 63 of 71 QC Data for Lot Number: WC17023 ICP-MS Metals - LCS Sample ID: WQ86060-002 Matrix: Aqueous Batch: 86060 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/18/2021 1243 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 98 1 98 80-120 03/19/2021 0040 Arsenic 100 95 1 95 80-120 03/19/2021 0040 Barium 100 95 1 95 80-120 03/19/2021 0040 Beryllium 100 100 1 101 80-120 03/19/2021 0040 Cadmium 100 90 1 90 80-120 03/19/2021 0040 Chromium 100 100 1 100 80-120 03/19/2021 0040 Cobalt 100 100 1 102 80-120 03/19/2021 0040 Copper 100 110 1 106 80-120 03/19/2021 0040 Iron 1000 960 1 96 80-120 03/19/2021 0040 Lead 100 100 1 102 80-120 03/19/2021 0040 Manganese 100 96 1 96 80-120 03/19/2021 0040 Nickel 100 100 1 104 80-120 03/19/2021 0040 Selenium 100 85 1 85 80-120 03/19/2021 0040 Silver 100 100 1 103 80-120 03/19/2021 0040 Thallium 100 99 1 99 80-120 03/19/2021 0040 Vanadium 100 97 1 97 80-120 03/19/2021 0040 Zinc 100 92 1 92 80-120 03/19/2021 0040 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 64 of 71 QC Data for Lot Number: WC17023 ICP-MS Metals - MS Sample ID: WC17023-001MS Matrix: Aqueous Batch: 86060 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/18/2021 1243 Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 0.0 100 95 1 95 75-125 03/19/2021 0224 Arsenic 0.0 100 99 1 99 75-125 03/19/2021 0224 Barium 56 100 150 1 95 75-125 03/19/2021 0224 Beryllium 0.17 100 95 1 95 75-125 03/19/2021 0224 Cadmium 0.0 100 89 1 89 75-125 03/19/2021 0224 Chromium 3.1 100 100 1 96 75-125 03/19/2021 0224 Cobalt 1.7 100 94 1 92 75-125 03/19/2021 0224 Copper 4.1 100 100 1 99 75-125 03/19/2021 0224 Iron 2800 1000 4300 N 1 150 75-125 03/19/2021 0224 Lead 1.9 100 96 1 94 75-125 03/19/2021 0224 Manganese 79 100 180 1 98 75-125 03/19/2021 0224 Nickel 3.1 100 100 1 98 75-125 03/19/2021 0224 Selenium 0.0 100 94 1 94 75-125 03/19/2021 0224 Silver 0.0 100 94 1 94 75-125 03/19/2021 0224 Thallium 0.0 100 92 1 92 75-125 03/19/2021 0224 Vanadium 8.6 100 100 1 95 75-125 03/19/2021 0224 Zinc 9.7 100 110 1 96 75-125 03/19/2021 0224 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 65 of 71 QC Data for Lot Number: WC17023 ICP-MS Metals - MSD Sample ID: WC17023-001MD Matrix: Aqueous Batch: 86060 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/18/2021 1243 Sample Spike Amount Amount Result %Rec % RPD Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Antimony 0.0 100 94 1 94 0.98 75-125 20 03/19/2021 0231 Arsenic 0.0 100 99 1 99 0.32 75-125 20 03/19/2021 0231 Barium 56 100 150 1 93 1.7 75-125 20 03/19/2021 0231 Beryllium 0.17 100 98 1 98 3.5 75-125 20 03/19/2021 0231 Cadmium 0.0 100 89 1 89 0.39 75-125 20 03/19/2021 0231 Chromium 3.1 100 100 1 97 0.73 75-125 20 03/19/2021 0231 Cobalt 1.7 100 94 1 92 0.025 75-125 20 03/19/2021 0231 Copper 4.1 100 100 1 100 0.15 75-125 20 03/19/2021 0231 Iron 2800 1000 4200 N 1 140 2.3 75-125 20 03/19/2021 0231 Lead 1.9 100 95 1 93 1.1 75-125 20 03/19/2021 0231 Manganese 79 100 180 1 96 0.94 75-125 20 03/19/2021 0231 Nickel 3.1 100 100 1 98 0.23 75-125 20 03/19/2021 0231 Selenium 0.0 100 94 1 94 0.42 75-125 20 03/19/2021 0231 Silver 0.0 100 93 1 93 0.37 75-125 20 03/19/2021 0231 Thallium 0.0 100 91 1 91 0.64 75-125 20 03/19/2021 0231 Vanadium 8.6 100 100 1 95 0.069 75-125 20 03/19/2021 0231 Zinc 9.7 100 110 1 96 0.14 75-125 20 03/19/2021 0231 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 66 of 71 QC Data for Lot Number: WC17023 CVAA -MB Sample ID: WQ86479-001 Matrix: Aqueous Batch: 86479 Prep Method: Analytical Method: 7470A Prep Date: 03/25/2021 1222 Parameter Result Q Dil LOQ DL Units Analysis Date Mercury 0.00020 U 1 0.00020 0.000091 mg/L 03/26/2021 1406 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 67 of 71 QC Data for Lot Number: WC17023 CVAA - LCS Sample ID: WQ86479-002 Matrix: Aqueous Batch: 86479 Prep Method: Analytical Method: 7470A Prep Date: 03/25/2021 1222 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0020 0.0019 1 96 80-120 03/26/2021 1409 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 68 of 71 QC Data for Lot Number: WC17023 Chain of Custody and Miscellaneous Documents Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 69 of 71 �0 <CD m D iv v C 20 0� v z�L' l7 J ci Chain of Custody 0. Record ro 20 r m n cilenl o C DM StMLL" m r Addri93 `� 5443 ix' f A'je. m CD v Q) F �17 nc �2 P'pjar;l1deme, N 0 (�iwrru& C3.!Y- ' "szt Nw'I luer C. CD Pace Analytical Services, 1LLC. job'vraritage PL3inl Drive bVest Columbia. SDutj C;�rollina n172 1; elephore: No (MG) 791 -Z-17Q0 Fax No, I 03) P91-91" *part to Gul%lct " r2,,- � Hcx f E-rna JAC:ulDmPaViOS CalunC2rAFgctlmsmib ri571e�s $igr5{sILIrY Anah-i; CM13oh HEM it x. 52 rrlrrtcd Nijo% V F m m DEmplo ID )Deserip'aan m 4 ci a.Ypcmubr"J O ID o rn - b v x O �l o o v - o— co O (D r 0 P.O. W. imalrr Callao iull T:IrI_ " :� {Ti; Itaryj 0 :c w ' I Lrn p4mirrl rEl!,r raeauirea (prier ob aopra2d rgLi: E[ ror aAFsyr.-� TAT] r q' rll!Ar� ❑ lrI w 4- �,onla nw by �reser5Jallvi) T M = V � m � irrLple DF*Pos*l I Return lP cLmt ciwe-1 hjr Lob- iGF le A RelingUiPee W a' +. Note: 141I samPI" are retained for four%we " F Ir01n reCelptul"hlos5 otKnrarran ernent�aremade Number I-rore mpa c;e a { V � k I rt J{ v Ppsaltrte hl"rd ld3-lifca`aun (List*iy kraw*Lrazv&, hnth" rxralks) ❑i pLyrrn*r. El 3r:7lwb.l G ZCS p i tl ❑ 4nkr—1 9_ R64Cimt � I �� 2. f"Wed ky Oale 3 Rind-M 4 5 y� f. LstaEari R ed bq 4.i LAB USE ONLY , Poo iPf' Remaived oa loe (QhK4j Y I N �] Ice P ° C Cixi.i. W 23M i1 III ����i i 1l V 17023 oso �er73r'ss r' voo ., I D ]� R�quirernenks Mp Ilrn� Film.! fire { 1Q�n� � -nx N --j m D D 0 r /m I m Cn r /ram i PACE ANALYTICAL SERVICES, LLC 5izkMPles Receipt Cherkll5t {SKQ (MEDt719£-151 IltvlsedV29{7070 rir rr��yPrGrP' IssuingAutllortty_ race =NV- WC0_ 1288e 1 of 1 ample Reedpt C heeldist (8RQ C,iclnl.: Mi 3F,itTH Cooler hirpoMd by/&Le. JRG2 { W!L?M21 Lot -!; WC17C•23 M8PmofreCw�; ❑ pace Bert EJUPS f edE�c Vihtr: — des d No I 1. Were cuspWy seals present nn the con laex Ye; F-1Njj LLNA12. ifcu_etad sealawere .resent, were hey aimelaild Wihmkr:n:' )'! Strip ID: 2o-259.; - C-nlarinff StriP 1D: roz-". " Tested by: aP�' Original tcmparalure upom receipt 1 Mrtved (Curreued) k mperauue upon reccipr %So'id Snaj3- 1p 1D: A L.9 9C MA j NA eC. NA f h'A aC CIA 1 NA eC LWthod: [Z]TeruperaLuro Fslnnk 1579aiust ButLles >R G*Lm 7D; 11k Gun COIT601-ii)n 1"AY w: 0 Me..I-kod of 000'ant: 21 -Wat Ice ❑ loe Packs _❑ D7 y 9ce ❑ Nsir.c T Eyes ❑Noll ❑Nlti 3, if tdmperptura of any uoult�rt:xccL-'(Irrl 6-0"C, was Projct:t Manapr Notif*r,' PM was Noli'ad by, phone f email 1 face-W-'bOO (eircic Dnc). y_k No NA 4, lsthe eor19rnnrcial courier's pkckirL,slipatt"hcd to this fin" d Y:s No S. Aare prc�pcd custLd} plti�edures (rclin islledlreoeived) f�liow YN Ll No 6- Wer- sam lu las listed on L'he COC? Yes NE) 7, Wcrz sample IDs listed on all sample contait'=7 ,f Yes No 8, Was collection date & time listed n7lh:!MC? © Yes Lj Net 19. Was collection dW & time lisnd 0n at! mmola eaolainers? 71 'res No 110. Did aJl comauier label information (M, dalo, anie) agree with tii,c COC? Yes N4,P ! !. WMLC' tests to be perfar.n-A i istad Lba the C'OC? ❑ Ye+ 0 ha 17- Did 01 samples uriva Irk Lhtn proms oairtainers fwr cacti Mst an&oT In �Qod C"IdiLivai (4ro€arcokrrl, I:ds o01. eta"j? 0 W N10 I3 Was adequVc swple va'ukne rsur,ilrbie? Ye4 Na 14. Wetu all �Hm •les receiyed wilhin'. the h❑ldinb time or 48 hours, whichever cove's first? '• 5. Wr�ere ally saLmp,cs cantainers missin c*5s irtile cm samplm Not lisl�xl un COC7 ❑ Yet Tda ❑ lA A. For VOA and RSK-1?5 sarnlik:s, were �aLT u1 arty of the v"A ;gala° Y No NA 17- Were all DRUrn elax ,v n uttient satrapies betel,,�i at a pT 1 o f < ?T? 18. V l= all cyanide sam ples received at n pH > 12 and �irlfide salalple; revci,,,cd BE a H � 9? y NO +/ NAIr-usedud �'1'cs ❑No UINA19. Yuen e J app'icaWte N 17CN1cyanide-phelw 2.5-11 005.3 (<U.Slnt+{1.) �annples I r e e u4 chinrin�:? ❑ ycs ❑Na MNA 20- Were Clier,l mmarLcMeque.ts (i c. req aged ClllutLons, ij 14vmS(i dcgjI tlon5, CtC.""} C'1T'3cdv imntir;riibcd fratn 6e [, )U into the CDIrIlle7it3;.CC[Iibn in ULMS! 121. YeS No Win1te quotE number lislrp c"i the op,l1L1 ncT iahai? If,ys, QLCOTe ]+ WA Sample Prezervmtion (Mast hm+;oluplet,ed ror wiy 73arnple(s) t17c4 7 11y,-,yeservt!ci or witl_ Iteajk�jpw+L..) —• — S;imPle(s) A _ wcrc rece'ved incorrectly preserved and ewe" adjusted acLurdin.,ly i, sw-plc receiving with ^ mL of circle Otte= H2SO4, 11NO3, 11C.L N3OH u4nC SR # NA Time atpre crvatioa VA If mere than ono poservativc is needed, pl=c note in t}le cumment3 heloW. Samplc(s) VA werc rcceivcd wide bubl)leN>IS rnm in di;kTTt-inr. (s) tiA ._ - ►;av rceoivcd with TRC > 0,5 Iily/7. (lF919 is rM) and were ticcnrCirgly in 3aniple.rtick jViRZ%with sorliurn d3iosalfill.0 n2%0a)wita Shealy I[> 114 SR bamode rabeb appl-.c 3 hti, J K�j2 Columen h, Tate: i}T.'L7r02 ] Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 71 of 71 aceAnalytical Report of Analysis CDM Smith 5400 Glenwood Avenue Suite 400 Raleigh, NC 27612 Attention: Mathew Colone Project Name: Cabarrus County LF-Background Lot Number:WC18012 Date Completed:03/31/2021 04/04/2021 8:45 PM Approved and released by: Project Manager II: Cathy S. Dover =w�4 aecRFo���A16 TNI / AM Amflvue Acm^rmm Fvu rj (' 4eOfFAi� ACC R E OI TEO TESTINGL aORlTOAY The electronic signature above is the equivalent of a handwritten signature. This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC. Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 Tel:803-791-9700 Fax:803-791-9111 www.pacelabs.com Page 1 of 46 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 Case Narrative CDM Smith Lot Number: WC18012 This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary following this Case Narrative. The sample receiving date is documented in the header information associated with each sample. All results listed in this report relate only to the samples that are contained within this report. Sample receipt, sample analysis, and data review have been performed in accordance with the most current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace") Laboratory Quality Manual, standard operating procedures (SOPS), and Pace policies. Any exceptions to the TNI standards, the Laboratory Quality Manual, SOPS or policies are qualified on the results page or discussed below. If you have any questions regarding this report please contact the Pace Project Manager listed on the cover page. Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 whw.pacelabs.com Page 2 of 46 PACE ANALYTICAL SERVICES, LLC Sample Summary CDM Smith Lot Number: WC18012 Project Name: Cabarrus County LF-Background Project Number: Sample Number Sample ID Matrix Date Sampled Date Received 001 CD-1s Aqueous 03/17/20211545 03/18/2021 (1 sample) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 3 of 46 PACE ANALYTICAL SERVICES, LLC Detection Summary CDM Smith Lot Number: WC18012 Project Name: Cabarrus County LF-Background Project Number: Sample Sample ID Matrix Parameter Method Result Q Units Page 001 CD-1s Aqueous Alkalinity @ pH 4.5 su SM 232013- 53 mg CaCO3/L 5 001 CD-1s Aqueous Chloride 9056A 9.4 mg/L 5 001 CD-1s Aqueous CO2 (calculation) SM 4500-CO2 120 mg/L 5 001 CD-1s Aqueous Nitrate - N 9056A 0.42 B mg/L 5 001 CD-1s Aqueous Sulfate 9056A 4.8 mg/L 5 001 CD-1s Aqueous TDS SM 2540C- 140 mg/L 5 001 CD-1s Aqueous Methane RSK - 175 2.5 BJ ug/L 8 001 CD-1s Aqueous Barium 6020B 42 ug/L 10 001 CD-1s Aqueous Chromium 6020B 1.3 J ug/L 10 001 CD-1s Aqueous Iron 6020B 290 ug/L 10 001 CD-1s Aqueous Manganese 6020B 7.6 ug/L 10 001 CD-1s Aqueous Vanadium 6020B 4.1 J ug/L 10 001 CD-1s Aqueous Zinc 6020B 5.8 J ug/L 10 (13 detections) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 4 of 46 Inorganic non-metals Client:CDM Smith Laboratory ID:WC18012-001 Description: CD-1s Matrix: Aqueous Date Sampled:03/17/2021 1545 Project Name: Cabarrus County LF- Date Received:03/18/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 03/29/2021 1434 DAK 87236 1 (BOD, 5 day) SM 521OB-2011 1 03/23/2021 2054 JAG 03/18/2021 2300 86175 1 (Chloride) 9056A 1 03/19/2021 0502 AMR 86238 1 (CO2 (calcula) SM 4500-CO2 D 1 03/29/2021 1434 DAK 1 (COD) SM 5220D-2011 1 03/25/2021 1013 AMR 86816 1 (Nitrate - N) 9056A 1 03/19/2021 0502 AMR 86239 1 (Sulfate) 9056A 1 03/19/2021 0502 AMR 86237 1 (Sulfide) SM 4500-S2 F-2011 1 03/23/2021 2022 GDC 86337 1 (TDS) SM 2540C-2011 1 03/19/2021 1749 SJL 86310 1 (TOC) SM 531OC-2011 1 03/24/2021 2047 DMA 86771 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su BOD, 5 day Chloride CO2 (calculation) COD Nitrate - N Sulfate Sulfide TDS TOC SM 2320B-2011 53 20 20 mg CaCO3/L 1 SM 521OB-2011 2.0 U 2.0 0.18 mg/L 1 9056A 9.4 1.0 0.25 mg/L 1 124-38-9 SM 4500-CO2 D 120 27 27 mg/L 1 SM 5220D-2011 20 U 20 20 mg/L 1 9056A 0.42 B 0.020 0.0050 mg/L 1 9056A 4.8 1.0 0.25 mg/L 1 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 0.99 mg/L 1 SM 2540C-2011 140 25 25 mg/L 1 SM 531OC-2011 1.0 U 1.0 1.0 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 5 of 46 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC18012-001 Description: CD-1s Matrix: Aqueous Date Sampled:03/17/2021 1545 Project Name: Cabarrus County LF- Date Received:03/18/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20212052 BWS 86481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D 5.0 U 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D 5.0 U 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 6 of 46 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:WC18012-001 Description: CD-1s Matrix: Aqueous Date Sampled:03/17/2021 1545 Project Name: Cabarrus County LF- Date Received:03/18/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 03/22/20212052 BWS 86481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.50 U 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 103 70-130 1,2-Dichloroethane-d4 91 70-130 Toluene-d8 91 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 7 of 46 Dissolved Gases Client:CDM Smith Laboratory ID:WC18012-001 Description: CD-1s Matrix: Aqueous Date Sampled:03/17/2021 1545 Project Name: Cabarrus County LF- Date Received:03/18/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 03/30/2021 1127 JM1 87356 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 Ethene 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 Methane 74-82-8 RSK - 175 2.5 BJ 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 8 of 46 CVAA Client:CDM Smith Laboratory ID:WC18012-001 Description: CD-1s Matrix: Aqueous Date Sampled:03/17/2021 1545 Project Name: Cabarrus County LF- Date Received:03/18/2021 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 03/23/2021 1950 CMS2 03/23/2021 1325 86544 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 9 of 46 ICP-MS Metals Client:CDM Smith Laboratory ID:WC18012-001 Description: CD-1s Matrix: Aqueous Date Sampled:03/17/2021 1545 Project Name: Cabarrus County LF- Date Received:03/18/2021 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 03/22/2021 1355 BNW Prep Date Batch 03/22/2021 0500 86200 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 42 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.3 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 290 50 13 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 7.6 5.0 1.3 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.1 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 5.8 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 10 of 46 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: WC18012 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 11 of 46 Inorganic non-metals - BOD Blank and GGA Matrix: Aqueous Batch: 86175 SCF: 0.6 Analytical Method: SM 521 OB-2011 SCF Range: 0.6 - 1.0 Result Avg. Result Sample ID Depl Avg. Depl (mg/L) (mg/L) Q Limit Prep Date Analysis Date WQ86175-041 (Blank) 0.12 0.2 03/18/2021 2128 03/23/2021 2013 WQ86175-141 (Blank) 0.13 0.2 03/18/2021 2127 03/23/2021 2013 WQ86175-241 (Blank) 0.21 0.15 4 0.2 03/18/2021 2127 03/23/2021 2013 WQ86175-035 (GGA) 160.5 1 167.5-228.5 03/18/2021 2134 03/23/2021 2017 WQ86175-135 (GGA) 175 167.5-228.5 03/18/2021 2134 03/23/2021 2017 WQ86175-235 (GGA) 180.5 172 167.5-228.5 03/18/2021 2134 03/23/2021 2017 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 12 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - MB Sample ID: WQ86237-001 Matrix: Aqueous Batch:86237 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate 1.0 U 1 1.0 0.25 mg/L 03/18/2021 1916 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 13 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ86237-002 Matrix: Aqueous Batch:86237 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 21 1 103 80-120 03/18/2021 2128 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 14 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - MB Sample ID: WQ86238-001 Matrix: Aqueous Batch:86238 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Chloride 1.0 U 1 1.0 0.25 mg/L 03/18/2021 1916 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 15 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ86238-002 Matrix: Aqueous Batch:86238 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 21 1 104 80-120 03/18/2021 2128 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 16 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - MB Sample ID: WQ86239-001 Matrix: Aqueous Batch: 86239 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N 0.0096 J 1 0.020 0.0050 mg/L 03/18/2021 1916 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 17 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ86239-002 Matrix: Aqueous Batch: 86239 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.82 1 102 80-120 03/18/2021 2128 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 18 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - MB Sample ID: WQ86310-001 Matrix: Aqueous Batch: 86310 Analytical Method: SM 2540C-2011 Parameter Result Q Dil LOQ DL Units Analysis Date TDS 25 U 1 25 25 mg/L 03/19/2021 1749 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 19 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ86310-002 Matrix: Aqueous Batch: 86310 Analytical Method: SM 2540C-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 1500 1500 1 98 90-110 03/19/2021 1749 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 20 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - MB Sample ID: WQ86337-001 Matrix: Aqueous Batch:86337 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide 1.0 U 1 1.0 0.99 mg/L 03/23/2021 2022 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 21 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ86337-002 Matrix: Aqueous Batch:86337 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 10 10 1 100 80-120 03/23/2021 2022 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 22 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCSD Sample ID: WQ86337-003 Matrix: Aqueous Batch:86337 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec % RPD Parameter (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfide 10 10 1 100 0.00 80-120 20 03/23/2021 2022 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 23 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - MB Sample ID: WQ86771-001 Matrix: Aqueous Batch:86771 Analytical Method: SM 531 OC-2011 Parameter Result Q Dil LOQ DL Units Analysis Date TOC 1.0 U 1 1.0 1.0 mg/L 03/24/2021 1903 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 24 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ86771-002 Matrix: Aqueous Batch:86771 Analytical Method: SM 531 OC-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TOC 20 20 1 98 90-110 03/24/2021 1916 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 25 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - MB Sample ID: WQ86816-001 Matrix: Aqueous Batch: 86816 Analytical Method: SM 5220D-2011 Parameter Result Q Dil LOQ DL Units Analysis Date COD 20 U 1 20 20 mg/L 03/25/2021 1005 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 26 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ86816-002 Matrix: Aqueous Batch: 86816 Analytical Method: SM 5220D-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date COD 40 40 1 101 95-105 03/25/2021 1006 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 27 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCS Sample ID: WQ87236-002 Matrix: Aqueous Batch:87236 Analytical Method: SM 2320B-2011 Spike Amount Result %Rec Parameter (mg CaCO3/L) (mg CaCO3/L) Q Dil % Rec Limit Analysis Date Alkalinity @ pH 4.5 su 100 99 1 99 90-110 03/29/2021 1356 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 28 of 46 QC Data for Lot Number: WC18012 Inorganic non-metals - LCSD Sample ID: WQ87236-003 Matrix: Aqueous Batch:87236 Analytical Method: SM 2320B-2011 Spike Amount Result %Rec % RPD Parameter (mg CaCO3/L)(mg CaCO3/L9 Dil % Rec % RPD Limit Limit Analysis Date Alkalinity @ pH 4.5 su 100 99 1 99 0.030 90-110 20 03/29/2021 1402 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 29 of 46 QC Data for Lot Number: WC18012 Volatile Organic Compounds by GC/MS - MB Sample ID: WQ86481-001 Matrix: Aqueous Batch: 86481 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone 10 U 1 10 4.0 ug/L 03/22/2021 1429 Acrylonitrile 5.0 U 1 5.0 0.80 ug/L 03/22/2021 1429 Benzene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Bromochloromethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Bromodichloromethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Bromoform 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Bromomethane (Methyl bromide) 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 2-Butanone (MEK) 10 U 1 10 2.0 ug/L 03/22/2021 1429 Carbon disulfide 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Carbon tetrachloride 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Chlorobenzene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Chloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Chloroform 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Chloromethane (Methyl chloride) 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 1,2-Dibromo-3-chloropropane (DBCP) 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Dibromochloromethane 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1429 1,2-Dibromoethane (EDB) 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1429 Dibromomethane (Methylene bromide) 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1429 trans- 1,4-Dichloro-2-butene 2.0 u 1 2.0 0.40 ug/L 03/22/2021 1429 1,2-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1429 1,4-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1429 1,1-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1429 1,2-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 03/22/2021 1429 1,1-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 cis- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 trans- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 1,2-Dichloropropane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 cis- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 trans- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Ethylbenzene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 2-Hexanone 10 U 1 10 2.0 ug/L 03/22/2021 1429 Methacrylonitrile 5.0 U 1 5.0 2.0 ug/L 03/22/2021 1429 Methyl iodide (lodomethane) 5.0 U 1 5.0 0.40 ug/L 03/22/2021 1429 4-Methyl-2-pentanone 10 U 1 10 2.0 ug/L 03/22/2021 1429 Methylene chloride 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Styrene 0.50 U 1 0.50 0.41 ug/L 03/22/2021 1429 1,1,1,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 1,1,2,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Tetrachloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Tetrahydrofuran 5.0 U 1 5.0 1.0 ug/L 03/22/2021 1429 Toluene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 1,1,1-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 1,1,2-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Trichloroethene 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 30 of 46 QC Data for Lot Number: WC18012 Volatile Organic Compounds by GC/MS - MB Sample ID: WQ86481-001 Matrix: Aqueous Batch:86481 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Trichlorofluoromethane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 1,2,3-Trichloropropane 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Vinyl acetate 5.0 U 1 5.0 1.2 ug/L 03/22/2021 1429 Vinyl chloride 0.50 U 1 0.50 0.40 ug/L 03/22/2021 1429 Xylenes (total) 1.0 U 1 1.0 0.40 ug/L 03/22/2021 1429 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 106 70-130 1,2-Dichloroethane-d4 91 70-130 Toluene-d8 91 70-130 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: WC18012 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 31 of 46 Volatile Organic Compounds by GC/MS - LCS Sample ID: WQ86481-002 Matrix: Aqueous Batch: 86481 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 110 1 108 60-140 03/22/2021 1301 Acrylonitrile 100 99 1 99 70-130 03/22/2021 1301 Benzene 50 48 1 97 70-130 03/22/2021 1301 Bromochloromethane 50 49 1 97 70-130 03/22/2021 1301 Bromodichloromethane 50 53 1 106 70-130 03/22/2021 1301 Bromoform 50 52 1 104 70-130 03/22/2021 1301 Bromomethane (Methyl bromide) 50 44 1 88 70-130 03/22/2021 1301 2-Butanone (MEK) 100 110 1 112 70-130 03/22/2021 1301 Carbon disulfide 50 49 1 98 70-130 03/22/2021 1301 Carbon tetrachloride 50 49 1 98 70-130 03/22/2021 1301 Chlorobenzene 50 48 1 97 70-130 03/22/2021 1301 Chloroethane 50 46 1 93 70-130 03/22/2021 1301 Chloroform 50 47 1 94 70-130 03/22/2021 1301 Chloromethane (Methyl chloride) 50 46 1 92 60-140 03/22/2021 1301 1,2-Dibromo-3-chloropropane (DBCP) 50 48 1 97 70-130 03/22/2021 1301 Dibromochloromethane 50 50 1 99 70-130 03/22/2021 1301 1,2-Dibromoethane (EDB) 50 52 1 105 70-130 03/22/2021 1301 Dibromomethane (Methylene bromide) 50 50 1 100 70-130 03/22/2021 1301 trans- 1,4-Dichloro-2-butene 50 49 1 99 70-130 03/22/2021 1301 1,2-Dichlorobenzene 50 49 1 99 70-130 03/22/2021 1301 1,4-Dichlorobenzene 50 48 1 96 70-130 03/22/2021 1301 1,1-Dichloroethane 50 48 1 95 70-130 03/22/2021 1301 1,2-Dichloroethane 50 48 1 95 70-130 03/22/2021 1301 1,1-Dichloroethene 50 47 1 94 70-130 03/22/2021 1301 cis- 1,2-Dichloroethene 50 48 1 96 70-130 03/22/2021 1301 trans- 1,2-Dichloroethene 50 48 1 96 70-130 03/22/2021 1301 1,2-Dichloropropane 50 50 1 100 70-130 03/22/2021 1301 cis- 1,3-Dichloropropene 50 57 1 113 70-130 03/22/2021 1301 trans- 1,3-Dichloropropene 50 50 1 99 70-130 03/22/2021 1301 Ethylbenzene 50 50 1 99 70-130 03/22/2021 1301 2-Hexanone 100 99 1 99 70-130 03/22/2021 1301 Methacrylonitrile 250 250 1 101 70-130 03/22/2021 1301 Methyl iodide (lodomethane) 50 49 1 97 70-130 03/22/2021 1301 4-Methyl-2-pentanone 100 110 1 108 70-130 03/22/2021 1301 Methylene chloride 50 44 1 89 70-130 03/22/2021 1301 Styrene 50 54 1 108 70-130 03/22/2021 1301 1,1,1,2-Tetrachloroethane 50 53 1 106 70-130 03/22/2021 1301 1,1,2,2-Tetrachloroethane 50 51 1 102 70-130 03/22/2021 1301 Tetrachloroethene 50 49 1 98 70-130 03/22/2021 1301 Tetrahydrofuran 50 49 1 98 70-130 03/22/2021 1301 Toluene 50 48 1 96 70-130 03/22/2021 1301 1,1,1-Trichloroethane 50 50 1 100 70-130 03/22/2021 1301 1,1,2-Trichloroethane 50 50 1 99 70-130 03/22/2021 1301 Trichloroethene 50 48 1 97 70-130 03/22/2021 1301 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 32 of 46 QC Data for Lot Number: WC18012 Volatile Organic Compounds by GC/MS - LCS Sample ID: WQ86481-002 Matrix: Aqueous Batch:86481 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Trichlorofluoromethane 50 47 1 93 70-130 03/22/2021 1301 1,2,3-Trichloropropane 50 48 1 97 70-130 03/22/2021 1301 Vinyl acetate 50 50 1 100 60-140 03/22/2021 1301 Vinyl chloride 50 47 1 95 70-130 03/22/2021 1301 Xylenes (total) 100 100 1 102 70-130 03/22/2021 1301 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 96 70-130 1,2-Dichloroethane-d4 92 70-130 Toluene-d8 92 70-130 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: WC18012 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 33 of 46 Dissolved Gases - MB Sample ID: WQ87356-001 Matrix: Aqueous Batch: 87356 Analytical Method: RSK - 175 Parameter Result Q Dil LOQ DL Units Analysis Date Ethane 10 U 1 10 2.5 ug/L 03/30/2021 1021 Ethene 10 U 1 10 2.5 ug/L 03/30/2021 1021 Methane 3.0 J 1 10 2.5 ug/L 03/30/2021 1021 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 34 of 46 QC Data for Lot Number: WC18012 Dissolved Gases - LCS Sample ID: WQ87356-002 Matrix: Aqueous Batch: 87356 Analytical Method: RSK - 175 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Ethane 550 580 1 105 70-130 03/30/2021 0918 Ethene 520 550 1 106 70-130 03/30/2021 0918 Methane 300 320 1 108 70-130 03/30/2021 0918 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 35 of 46 QC Data for Lot Number: WC18012 Dissolved Gases - LCSD Sample ID: WQ87356-003 Matrix: Aqueous Batch: 87356 Analytical Method: RSK - 175 Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Ethane 550 580 1 104 1.1 70-130 30 03/30/2021 0932 Ethene 520 540 1 105 1.1 70-130 30 03/30/2021 0932 Methane 300 310 1 105 2.3 70-130 30 03/30/2021 0932 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 36 of 46 QC Data for Lot Number: WC18012 ICP-MS Metals - MB Sample ID: WQ86200-001 Matrix: Aqueous Batch: 86200 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/22/2021 0500 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony 2.0 U 1 2.0 0.50 ug/L 03/22/2021 1203 Arsenic 2.0 U 1 2.0 1.3 ug/L 03/22/2021 1203 Barium 5.0 U 1 5.0 1.3 ug/L 03/22/2021 1203 Beryllium 0.40 U 1 0.40 0.15 ug/L 03/22/2021 1203 Cadmium 0.50 U 1 0.50 0.13 ug/L 03/22/2021 1203 Chromium 5.0 U 1 5.0 1.3 ug/L 03/22/2021 1203 Cobalt 5.0 U 1 5.0 1.3 ug/L 03/22/2021 1203 Copper 5.0 U 1 5.0 1.3 ug/L 03/22/2021 1203 Iron 50 U 1 50 13 ug/L 03/22/2021 1203 Lead 1.0 U 1 1.0 0.25 ug/L 03/22/2021 1203 Manganese 5.0 U 1 5.0 1.3 ug/L 03/22/2021 1203 Nickel 5.0 U 1 5.0 1.3 ug/L 03/22/2021 1203 Selenium 5.0 U 1 5.0 1.3 ug/L 03/22/2021 1203 Silver 1.0 U 1 1.0 0.25 ug/L 03/22/2021 1203 Thallium 0.50 U 1 0.50 0.15 ug/L 03/22/2021 1203 Vanadium 5.0 U 1 5.0 2.5 ug/L 03/22/2021 1203 Zinc 10 U 1 10 2.5 ug/L 03/22/2021 1203 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 37 of 46 QC Data for Lot Number: WC18012 ICP-MS Metals - LCS Sample ID: WQ86200-002 Matrix: Aqueous Batch: 86200 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/22/2021 0500 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 100 1 102 80-120 03/22/2021 1208 Arsenic 100 99 1 99 80-120 03/22/2021 1208 Barium 100 100 1 102 80-120 03/22/2021 1208 Beryllium 100 100 1 104 80-120 03/22/2021 1208 Cadmium 100 99 1 99 80-120 03/22/2021 1208 Chromium 100 100 1 102 80-120 03/22/2021 1208 Cobalt 100 100 1 102 80-120 03/22/2021 1208 Copper 100 100 1 105 80-120 03/22/2021 1208 Iron 1000 1100 1 106 80-120 03/22/2021 1208 Lead 100 100 1 101 80-120 03/22/2021 1208 Manganese 100 100 1 100 80-120 03/22/2021 1208 Nickel 100 110 1 105 80-120 03/22/2021 1208 Selenium 100 94 1 94 80-120 03/22/2021 1208 Silver 100 100 1 102 80-120 03/22/2021 1208 Thallium 100 100 1 102 80-120 03/22/2021 1208 Vanadium 100 100 1 100 80-120 03/22/2021 1208 Zinc 100 100 1 100 80-120 03/22/2021 1208 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 38 of 46 QC Data for Lot Number: WC18012 ICP-MS Metals - MS Sample ID: WC18012-001MS Matrix: Aqueous Batch: 86200 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/22/2021 0500 Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 0.0 100 94 1 94 75-125 03/22/2021 1401 Arsenic 0.0 100 96 1 96 75-125 03/22/2021 1401 Barium 42 100 150 1 107 75-125 03/22/2021 1401 Beryllium 0.0 100 89 1 89 75-125 03/22/2021 1401 Cadmium 0.0 100 100 1 102 75-125 03/22/2021 1401 Chromium 1.3 100 100 1 99 75-125 03/22/2021 1401 Cobalt 0.0 100 97 1 97 75-125 03/22/2021 1401 Copper 0.0 100 100 1 100 75-125 03/22/2021 1401 Iron 290 1000 1300 1 105 75-125 03/22/2021 1401 Lead 0.0 100 100 1 101 75-125 03/22/2021 1401 Manganese 7.6 100 110 1 98 75-125 03/22/2021 1401 Nickel 0.0 100 100 1 101 75-125 03/22/2021 1401 Selenium 0.0 100 95 1 95 75-125 03/22/2021 1401 Silver 0.0 100 97 1 97 75-125 03/22/2021 1401 Thallium 0.0 100 100 1 101 75-125 03/22/2021 1401 Vanadium 4.1 100 100 1 98 75-125 03/22/2021 1401 Zinc 5.8 100 100 1 94 75-125 03/22/2021 1401 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 39 of 46 QC Data for Lot Number: WC18012 ICP-MS Metals - MSD Sample ID: WC18012-001MD Matrix: Aqueous Batch: 86200 Prep Method: 3005A Analytical Method: 6020B Prep Date: 03/22/2021 0500 Sample Spike Amount Amount Result %Rec % RPD Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Antimony 0.0 100 96 1 96 1.6 75-125 20 03/22/2021 1407 Arsenic 0.0 100 96 1 96 0.63 75-125 20 03/22/2021 1407 Barium 42 100 150 1 112 3.0 75-125 20 03/22/2021 1407 Beryllium 0.0 100 87 1 87 1.3 75-125 20 03/22/2021 1407 Cadmium 0.0 100 100 1 102 0.29 75-125 20 03/22/2021 1407 Chromium 1.3 100 100 1 98 1.1 75-125 20 03/22/2021 1407 Cobalt 0.0 100 94 1 94 2.8 75-125 20 03/22/2021 1407 Copper 0.0 100 100 1 101 0.90 75-125 20 03/22/2021 1407 Iron 290 1000 1300 1 104 0.90 75-125 20 03/22/2021 1407 Lead 0.0 100 100 1 103 1.6 75-125 20 03/22/2021 1407 Manganese 7.6 100 110 1 98 0.76 75-125 20 03/22/2021 1407 Nickel 0.0 100 99 1 99 1.7 75-125 20 03/22/2021 1407 Selenium 0.0 100 96 1 96 2.0 75-125 20 03/22/2021 1407 Silver 0.0 100 98 1 98 1.4 75-125 20 03/22/2021 1407 Thallium 0.0 100 100 1 103 2.3 75-125 20 03/22/2021 1407 Vanadium 4.1 100 100 1 96 1.1 75-125 20 03/22/2021 1407 Zinc 5.8 100 100 1 94 0.27 75-125 20 03/22/2021 1407 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 40 of 46 QC Data for Lot Number: WC18012 CVAA -MB Sample ID: WQ86544-001 Matrix: Aqueous Batch: 86544 Prep Method: Analytical Method: 7470A Prep Date: 03/23/2021 1325 Parameter Result Q Dil LOQ DL Units Analysis Date Mercury 0.00020 U 1 0.00020 0.000091 mg/L 03/23/2021 1923 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 41 of 46 QC Data for Lot Number: WC18012 CVAA - LCS Sample ID: WQ86544-002 Matrix: Aqueous Batch: 86544 Prep Method: Analytical Method: 7470A Prep Date: 03/23/2021 1325 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0020 0.0018 1 89 80-120 03/24/2021 1020 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 42 of 46 QC Data for Lot Number: WC18012 Chain of Custody and Miscellaneous Documents Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 43 of 46 PACE ANALYTICAL SERVICES, LLC ---FF � KMI I Im `f Q Si r. � and Z d n� 5 r r r m fr M xq m ` 11fa++f t J CS�J=�4 tr m _ 13 `dd� 0, $70IL 1 4MY e MY Ln e � I:ktil La L � Z trUS'LI I a � ?[ am 3r t ev � -era tiJ4 c 5J m i4 y d'J63�IInnLivnn+ 2 40 Y z x L !'q q 4 PJ X 3- ~ O r6 �y L z L) s E S yq ;i 6 p d N 2L W C1 _. ❑ n r� Q E 1 V N f a-Q r [k c3 2' U o a" u ■ � gg %` 6 Y rz �} F. 7 o E m V3 4 � L � � o w +� a M Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 44 of 46 PACE ANALYTICAL SERVICES. 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