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HomeMy WebLinkAbout4116_Guilford_WIHighPoint_CDLF_AssessmentPlanAddendum_FID1376916_20191108G GOLDER November 8, 2019 Jaclynne Drummond, Hydrogeologist Department of Environmental Quality Division of Waste Management Solid Waste Section 2090 US Highway 70 Swannanoa, North Carolina 28778 jaclynne.drummond@ncdenr.gov Project No. 19116638.300 ASSESSMENT MONITORING WORK PLAN ADDENDUM 2 WASTE INDUSTRIES OF HIGH POINT, LLC C&D LANDFILL, PERMIT NO. 41-16 GUILFORD COUNTY, NORTH CAROLINA Dear Jackie, On behalf of Waste Industries of High Point, LLC (Waste Industries), Golder Associates NC, Inc. (Golder) is submitting this Addendum to the December 2015, Assessment Monitoring Work Plan and the October 2016 Addendum for the above -referenced facility. The addendum is proposed due to groundwater standard exceedances of inorganic constituents that include barium, cobalt, iron, and manganese at quantifiable concentrations above laboratory practical quantitation limits (PQLs) in samples from downgradient groundwater monitoring wells during recent semi-annual water quality monitoring events. Cobalt, thallium, and vanadium have also been detected at estimated concentrations below the PQLs, but above their respective water quality standards, in samples from downgradient wells during recent sampling events. As the concentrations are estimated (i.e., non -quantifiable) concentrations below the method reporting limits, per the 15A NCAC 02L .0202 (b)(1), no regulatory actions should be taken for estimated values below the reporting limits (a.k.a. PQLs) that are above groundwater standards. A summary of historical inorganic detections from groundwater monitoring wells is included as Table 1. The current background well, MW-1, is screened within bedrock. Waste Industries proposes to obtain additional background data (i.e., inorganic constituents) for groundwater within saprolite. We propose to sample existing piezometer P-3, which is located in the eastern portion of the facility as seen on Figure 1. Piezometer P-3 will be sampled on a semi-annual basis to acquire additional data for Appendix I metals plus iron, manganese, and mercury over a proposed five-year period to establish background levels for inorganic constituents. Piezometer P-3 was installed by Bedford Well Drilling, Inc. on February 2, 2002, with oversight by Joyce Engineering, Inc. The boring for P-3 was advanced with 4.25-inch hollow stem augers to a depth of approximately 25 feet (ft) below ground surface (bgs). Standard penetration tests (SPTs) were preformed continuously to total depth using 2-foot split -spoon samplers and an automatic hammer to split -spoon refusal depth of 25 ft bgs. The monitoring well was constructed with 2-inch schedule 40 polyvinyl -chloride (PVC) screen and riser pipe. The 0.010-inch slotted screen was installed from 10 to 25 ft bgs. The filter pack Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North Carolina, USA 27407 T: +1 336 852-4903 F: +1 336 852-4904 Engineering Lic. No. C-2862/Geology Lic. No. C-399 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. golder.com Jaclynne Drummond, Hydrogeologist Department of Environmental Quality Project No. 19116638.300 November 8, 2019 consists of Driller Service Inc. (DSI) #2 sand from 8 to 25 ft bgs. A filter pack seal was installed from 5.5 to 8 ft bgs and consists of 3/8-inch bentonite chips. The remaining annular space was filled with Type I Portland cement. The boring log is attached. In order to evaluate the condition of P-3 and prepare the piezometer for groundwater sampling, the piezometer was developed on June 18, 2019, using an inertial pump until field parameters stabilized and relatively sediment -free water was obtained. The piezometer was purged for approximately 5.5 hours and approximately 110 gallons of water were removed. The development form is attached. Piezometer P-3 was sampled on July 11, 2019, during the routine semi-annual water quality event to acquire initial analytical data from the piezometer. Iron was detected in the sample at a quantifiable concentration above the PQL and above the NC 2L Standard. Barium, manganese, and mercury were detected at quantifiable concentrations above the PQL, but below their respective water quality standards. Chromium and nickel were detected at estimated concentrations below the PQL and their respective water quality standards. The sampling log and laboratory certificate -of -analysis are being submitted with the Second Semi -Annual 2019 Water Quality Monitoring Report. We propose to sample piezometer P-3 up to 10 times over the next five years to establish revised background levels of inorganic constituents. Waste Industries of High Point will have the samples analyzed for the NC Appendix I list of metals plus iron, manganese, and mercury. The sampling schedule and list of parameters is proposed as follows: Piezometer P-3 Monitoring Schedule econd Semil7nnual Water Quality Monitoring First Semi -Annual Water Quality Monitoring Event nt of 2019 (June) of 2020 (January) econd Semi -Annual Water Quality Monitorin emi-Annual Water Quality Monitoring Event V1__ Event of 2020 (June) o021 (January) Second Semi -Annual Water Quality itorin irst Semi -Annual Water Quality Monitoring Event Event of 2021 (June) of 2022 (January) Second Semi -Annual Water Quality Monitor in irst Semi -Annual Water Quality Monitoring Event Event of 2022 (June) f 2023 (January) NC Appendix I metals, iron, manganese, and mercury I NC ADDendix I metals. iron. manclanese. and mercury Second Semi -Annual Water Quality Monito irst Semi -Annual Water Quality Monitoring Event Event for 2023 (January) f 2024 (January) NC Appendix I metals, iron, manganese, and mercury I NCADDendix I metals. iron. manclanese. and mercury GOLDER Jaclynne Drummond, Hydrogeologist Department of Environmental Quality Project No. 19116638.300 November 8, 2019 Analytical data from P-3 will be included in the semi-annual water quality monitoring reports for the facility. If at any point, Waste Industries determines that the collection of further analytical data from P-3 is no longer necessary, Waste Industries will notify the NC DEQ in writing that they will no longer sample P-3. If you have any questions regarding this Addendum to the Assessment Monitoring Work Plan, please contact the undersigned at 336 852 4903. We appreciate your assistance with this project. Sincerely, Golder Associates NC, Inc. PAR David "Dusty" Y. Reedy II, PG Rachel P. Kirkman, PG Senior Hydrogeologist Associate and Senior Consultant CC: Seth Heath, General Manager, Waste Industries of High Point, 5830 Riverdale Drive, Jamestown, NC 27282, seth.heath@gflenv.com, 336-886- 3560. Catherine Hernandez, Operations Supervisor, Waste Industries of High Point, LLC, 5830 Riverdale Drive, Jamestown, North Carolina 27282, Catherine.hernandez@gflenv.com. (Electronic Copy) David Pepper, Vice President, GFL Environmental, 3301 Benson Drive, Suite 601, Raleigh, NC 27609, David.pepper@gflenv.com, 919-877-2235. (Electronic Copy) Bryan Wuester, Corporate Landfill Director, GFL Environmental, 3301 Benson Drive, Suite 601, Raleigh, NC 27609, bryan.wuester@gflenv.com (Electronic Copy) Travis Hitchcock, Region Vice President, GFL Environmental, 3301 Benson Drive, Suite 601, Raleigh, NC, 27609, travis.hitchcock@gflenv.com. (Electronic Copy) Attachments: Table 1 - Summary of Detected Inorganic Constituents in Groundwater Drawing 1 - Groundwater Contour Map — July 10, 2019 Log of Boring P-3 Development Form gAprojects\waste industries\high point\19116638 - wi high point - nc\phase 300 - general consulting\01 - amwp addendum 2\final\19116638.300-001-r- rev0-h p_a mwp_adde nd u m. docx 4 GOLDER November 2019 19116638.102 TABLET Summary of Detected Inorganic Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina SINS Upgradlent Downgradient Parameter Reporting Sample MDL MRL Reporting Blanks Units Date Limit MWA P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Antimony ugIL 01/16/07 -- - 6 ND - ND ND ND ND ND ND ND -- -- ND NC 211MAC=1 ugIL ugIL 07/02/07 -- - 6 ND -- ND ND ND ND ND ND ND -- -- ND EPA MCL=6 ug/L ugIL 01/30/08 -- - 6 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/17/08 -- - 6 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/14/09 -- - 6 ND -- ND 0.96 J ND ND 0.94 J -- - -- -- ND ugIL 07/16/09 -- - 6 ND -- ND ND ND ND ND -- - -- -- ND ugIL 01/04/10 -- - 6 ND -- ND 0.107 J ND ND 0.0910 J 0.206 J ND -- -- ND ugIL 07/01/10 -- - 6 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/13/11 -- - 6 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/21/11 -- - 6 ND -- ND ND ND ND ND ND ND -- -- ND uq/L 01/16/12 -- - 6 0.307 J -- 0.620 J ND ND ND ND ND ND -- -- ND uq/L 07/09/12 -- - 6 0.257 B -- 1.30 B ND ND ND ND ND ND -- - 0.461 J uq/L 01/14/13 -- - 6 ND -- 0.672 J ND ND ND ND ND ND -- -- ND uq/L 07/09/13 -- - 6 0.221 J -- 0.767 J ND ND 0.238 J ND ND ND -- -- ND ugIL 01/30/14 -- - 6 0.229 J -- 1.66 J ND ND 0.347 J ND ND ND -- -- ND ugIL 07/08/14 -- - 6 ND -- 1.30 J ND ND ND ND ND ND -- -- ND uq/L 03/03/15 0.220 - 6 ND -- 0.953 J 0.224 J ND ND ND ND ND -- -- ND uq/L 08/12/15 0.220 - 6 ND -- ND ND ND ND ND ND ND -- -- ND uq/L 02/17/16 0.220 - 6 0.277 J -- ND ND ND 0.252 J ND ND ND -- -- ND uq/L 07/14/16 0.220 - 6 ND -- 0.393 J ND ND ND ND ND ND -- -- ND uq/L 01/11/17 0.370 - 6 ND -- 0.854 J ND ND ND ND ND ND ND ND ND uq/L 07/11/17 0.370 - 6 ND -- ND ND ND ND ND ND ND ND ND ND uq/L 01/09/18 0.250 - 6 ND -- ND ND ND ND ND ND ND ND ND ND uq/L 07/26/18 1.85 5 - ND -- ND ND ND ND ND ND ND ND ND ND uq/L 01/30/19 0.740 2 -- ND -- ND ND ND ND ND ND ND ND ND ND ugIL 07/10/19 0.740 2 ND ND ND ND ND ND ND ND ND ND ND ND Arsenic ugIL 10I08/03 -- - 10 ND -- ND ND ND ND ND _ ND NC 2L = 10 ug/L ugIL 01123/04 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND EPA MCL=10 ugIL ugIL 07I08104 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ugIL 01125/05 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ugIL 07/06/05 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ugIL 01/09/06 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ugIL 07/12/06 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND J ugIL 01/16/07 -- - 10 ND -- 2.5 B 2.8 B 2.4 B ND ND ND ND -- -- 2.4 ugIL 07/02/07 -- - 10 ND -- ND ND ND 5.1 J ND ND ND -- -- ND J ugIL 01/30/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- 2.1 ugIL 07/17/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/14/09 -- - 10 ND -- ND ND 2.8 J ND ND -- - -- -- ND ugIL 07/16/09 -- - 10 3.56 J -- ND 4.21 J 4.82 J ND 3.76 J -- - -- -- ND ugIL 01/04/10 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND J ugIL 07/01/10 -- - 10 3.96 B -- 6.39 B 5.99 B 6.13 B 6.64 B 3.12 B 3.16 B ND -- -- 3.54 ugIL 01/13/11 -- - 10 ND -- 4.13 J ND 3.35 J 2.82 J 4.74 J 3.81 J ND -- -- ND ugIL 07/21/11 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/16/12 -- - 10 ND -- ND ND 3.12 J ND ND ND ND -- -- ND J uq/L 07/09/12 -- - 10 3.41 B -- ND ND 4.41 B ND ND 3.18 B ND -- -- 3.13 uq/L 01/14/13 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND uq/L 07/09/13 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND uq/L 01/30/14 -- - 10 ND -- ND ND ND 6.93 J ND ND ND -- -- ND ugIL 07/08/14 -- - 10 ND -- 5.83 J ND ND ND ND ND ND -- -- ND ugIL 03/03/15 5.40 - 10 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 08/12/15 6.80 - 10 ND -- 8.12 J ND ND ND ND ND ND -- -- ND ugIL 02/17/16 6.80 - 10 ND -- 6.94 J ND ND ND 9.29 J ND ND -- -- ND uq/L 07/14/16 6.80 - 10 ND -- 9.80 J ND ND 7.81 J ND ND ND -- -- ND ugIL 01/11/17 6.80 - 10 ND -- 14.1 ND ND ND ND ND ND ND ND ND (Dissolved) ugIL 01/11/17 6.80 - 10 - -- 8.1 J -- - -- - -- - -- -- -- ugIL 07/11/17 6.80 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 01/09/18 6.80 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 07/26/18 7.60 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ugIL 01/30/19 7.60 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ugIL 07/10/19 7.60 10 ND ND ND ND ND ND ND ND ND ND ND ND Barium ugIL 10I08/03 -- - 500 ND -- ND ND ND ND ND -- - -- -- ND NC 2L=700 ugIL ugIL 01123/04 -- - 500 ND -- ND ND ND ND ND -- - -- -- ND EPA MCL=2000 ugIL ugIL 07I08104 -- - 500 ND -- ND ND ND ND ND -- - -- -- ND ugIL 01125/05 -- - 500 ND -- ND ND ND ND ND -- -- -- -- ND ugIL 07/06/05 -- - 500 ND -- ND ND ND ND ND -- -- -- -- ND ugIL 01/09/06 -- - 500 ND -- ND ND ND ND ND -- -- -- -- ND J ugIL 07/12/06 -- - 500 ND -- ND ND ND ND ND -- - -- -- ND J ugIL 01/16/07 -- - 100 141 -- 187 25.5 J 73.9 J 86.7 J 53.5 J 210 46.4 J -- -- 0.90 J uq/L 07/02/07 -- - 100 137 -- 338 29.4 J 33.4 J 87.8 J 57.5 J 230 424 J 1.2 uq/L 01/30/08 - 100 100 190 469 J 666 ... J 110 822 .. J 143 66.8 J 0.30 uq/L 07/17/08 - 100 102 279 36.5 J 525 . J 928 J 65.1 J 108 49.2 J ND IL 01/4/09 - 100 101 2 38.3 8. 39 J ND Jug1 uL 07/16/09 - 00 132 252 39.1 J 65.9 J 71.6 J 990J -- -- ---- ---- ND uq L 01/04/10 - 100 107 188 374 J 117 517 J Ill 8. 7 ,552 ugIL 07/01/10 - 100 117 156 422 1454 J 726 J 153 107 23.3 J ND ugIL 01/13/11 - 100 100 193 35.0 J 69.4 J 70.8 J 117 98.5 J 266 J ND 0721/11 - 100 125 273 33.7 . J 877 . J 75.1 J 140 115 30.1 J NDuL uq L 01116/12 100 108 197 349 J 114 582 J 161 118 36.3 J -- -- ND J ugIL 07I09/12 -- - 100 115 -- 338 31.5 J 48.3 J 67.5 J 223 122 40.0 J -- -- ND J ugIL 01/14/13 -- - 100 125 -- 333 47.2 J 74.0 J 66.4 J 162 142 50.2 J 46 J 1.37 ugIL 07/09/13 00 887 . J 308 369 462 J 603 126 137 61.9 J J 01/30/114 1 8 J 297 44.6 J 88.7 J 59.5 J 146 154 797 ... J 08 JuL 1.13 uq L 07/08/4 100 738 J 542 40.3 J 535 ... J 57.3 J 174 156 696 J J uL 03/03/15 1.00 - 100 62.3 J 427 42.5 . J 514 J 49.5 . J 192 18 860 J 3.04 uq L 08/12/15 . 100 - 100 62.7 J 649 353 J 747 J 618 J 203 181 47.6 J -- -- 2.33 ugIL 02/17/16 1 - 100 53.3 J 428 33.4 J 96.6 J 46.6 J 269 194 57..0 J ND 1 07/416 1. 00 100 511 J 8 48 430 67 J 1 J 91 5 1 J 39 192 6ug/L 28 J -- -- 1.51 J ug/L 01/11/17 1.00 -- 100 53.0 J -- 726 42.7 J 76.7 J 75.4 J 378 215 77.4 J 113 160 ND (Dissolved) ug/L 01/11/17 1.00 -- 100 -- -- 337 -- -- -- -- -- -- -- ug/L 07/11/17 1.00 -- 100 49.8 J -- 528 38.8 63.6 53.2 414 218 94.6 80.9 177 1.39 J ug/L 01/09/18 1.00 -- 100 418 J -- 926 46.3 J 87.3 J 88.0 J 615 263 128 143 327 ND (Dissolved) ug/L 01/09/18 1.00 -- 100 -- -- 377 -- - -- - -- - -- ugIL 07/26/111 1.10 10 - 36.2 -- 859 32.9 71.4 61.4 551 223 125 179 312 ND ugIL 01/30/19 1.10 10 - 37.6 -- 309 32.8 80.2 39.5 530 240 143 213 170 ND ugIL 07/10/19 1.10 10 37.7 53.0 1110 55.5 124 59.1 763 252 151 157 329 2.91 J Beryllium ugIL 01/16/07 -- - 1 ND -- ND ND ND ND ND ND ND -- - ND NC 2L IMAC= 4 ugIL ugIL 07/02/07 -- - 1 ND -- ND ND ND ND ND ND ND -- - ND EPA MCL=4 ug/L ugIL 01/30/08 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 0717/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01114/09 -- - 1 ND -- ND ND IN ND ND -- - -- -- ND ugIL 07/16/09 -- - 1 ND -- 0.135 J ND ND 0.0900 J ND -- - -- -- ND ugIL 01/04/10 -- - 1 ND -- 0.674 J ND ND ND ND ND ND -- -- ND ugIL 07,01"0 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/13/11 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/21/11 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/16/12 -- -- 1 ND -- ND ND 0.176 J ND ND ND ND -- -- ND ugIL 07I09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/30/14 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/08/14 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 03/03/15 0.100 - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 0812/15 0.100 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 02/17/16 0.100 - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/14/16 0.100 -- 1 ND -- ND ND ND ND ND ND ND -- - ND ugIL 01/11/17 0.100 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 07/11/17 0.130 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 01/09/18 0.130 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 07/26/18 0.160 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ugIL 01/30/19 0.160 1 -- ND -- ND ND ND ND ND ND ND ND ND ND u IL 07/10/19 0.160 1 ND ND ND ND ND ND ND ND ND ND ND ND Cadmium ugIL 10/08/03 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L=2 ugIL ugIL 01/23/04 -- -- 1 ND -- ND ND ND ND ND -- - -- -- ND EPA MCL=S ug/L ugIL 07/08/04 -- -- 1 ND -- ND ND ND ND ND -- - -- -- ND ugIL 01/25/05 -- -- 1 ND -- ND ND ND ND ND -- - -- -- ND ugIL 07/06/05 -- -- 1 ND -- ND ND ND ND ND -- - -- -- ND ugIL 01/09/06 -- 1 ND -- ND ND ND ND ND -- - -- -- ND ugIL 07/12/06 -- -- 1 ND -- ND ND ND ND ND -- - -- -- ND ugIL 01/16/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/17/08 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/14/09 -- - 1 ND -- ND ND ND ND ND -- - -- -- ND ugIL 07/16/09 -- - 1 0.350 B -- 0.390 B 0.310 B 0.200 B 0.111 B 0.293 B -- - -- -- 1.19 ugIL 01/04/10 -- -- 1 0.299 J -- 0.770 J 0.269 J ND ND 0.296 J 0.153 J 0.344 J -- -- ND ugIL 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/09/12 -- - 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 03/03/15 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 08/12/15 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 02117/16 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugIL 01/11/17 0.360 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 07/11/17 0.360 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 01/09/18 0.360 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ugIL 07/26/18 0.360 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ugIL 01/30/19 0.360 1 -- ND -- ND ND ND 0.483 J ND ND ND ND ND ND u /L 07/10/19 0.360 1 ND ND ND ND ND ND ND ND ND ND ND ND 4 GOLDER 1 of 4 November 2019 19116638.102 TABLET Summary of Detected Inorganic Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina SWS Upgradlent Downgradient Parameter Reporting Sample MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Chromium ug/L 10/08/03 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND NC 2L = 10 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- - -- -- ND EPA MCL=100 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 2.2 J -- ND ND ND ND ND 17.0 ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND 19.0 ND -- -- ND ug/L 01/30/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 07/17/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- - 10 ND -- ND 5.3 J 4.9 J ND ND -- - -- -- ND ug/L 07/16/09 -- - 10 0.772 J -- 4.78 J 1.01 J 0.793 J 0.722 J 0.736 J -- - -- -- ND ug/L 01/04/10 -- - 10 ND -- 4.22 J 2.58 J ND ND ND ND ND -- -- ND ug/L 07/01/10 -- - 10 6.26 B -- ND 6.00 B ND ND ND 1.29 B ND -- -- 1.80 J ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND 1.26 J ND -- -- ND ug/L 07/21/11 -- - 10 ND -- 3.62 J ND 14.3(1.06 J) ND 1.95 J 2.46 J ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 3.77 J ND 1.70 J ND 4.53 J ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 6.97 J ND ND ND 5.41 J ND ND -- -- ND J ug/L 01/14/13 -- - 10 ND -- 3.73 B 1.19 B 1.03 B 1.08 B 2.77 B 1.57 B 1.32 B -- -- 1.40 ug/L 07/09/13 -- - 10 ND -- ND ND ND ND 1.78 J ND ND -- -- ND ug/L 01/30/14 -- - 10 ND -- ND ND ND ND 2.42 J ND 2.08 J -- -- ND ug/L 07/08/14 -- - 10 ND -- 3.68 J 2.83 J 10.9 (ND) ND 3.76 J 1.44 J ND -- -- ND ug/L 03/03/15 1.40 - 10 ND -- 6.93 B ND 1.54 B ND 5.74 B 1.43 B 2.11 B -- -- 1.66 ug/L 08/12/15 1.40 -- 10 ND -- 1.66 J ND ND ND 3.94 J ND ND -- -- ND ug/L 02/17/16 1.40 -- 10 ND -- 5.24 J 6.61 J 1.40 J ND 4.34 J ND ND -- - ND ug/L 07/14/16 1.40 -- 10 ND -- ND ND ND ND 1.70 J ND ND -- - ND ug/L 01/11/17 1.40 -- 10 ND -- ND ND ND ND 2.10 J ND ND ND ND ND ug/L 07/11/17 1.40 -- 10 ND -- 1.53 J ND ND ND 4.01 J ND ND ND 1.94 J ND ug/L 01/09/18 1.40 - 10 ND -- ND ND 3.61 J ND 6.11 J 1.89 J 3.33 J ND 4.12 J ND ug/L 07/26/18 1.40 10 -- ND -- 4.63 J ND ND ND 5.60 J ND 3.35 J ND 3.72 J ND ug/L 01/30/19 1.40 10 -- ND -- 1.94 J 6.90 J ND ND 5.04 J 1.51 J 3.14 J 1.47 J 1.73 J ND u /L 07/10/19 1.40 10 ND 2.26 J 2.96 J 1.61 J ND ND 5.03 J 1.61 J ND ND 2.77 J ND Cobalt ug/L 01/16/07 -- - 10 ND -- 14.6 ND ND 3.0 J 5.9 J 3.9 J ND -- - ND NC 2L IMAC = 1 ug/L ug/L 07/02/07 -- - 10 ND -- 27.4 ND ND 4.7 J ND 6.0 J ND -- - ND No EPA MCL ug/L 01/30/08 -- - 10 ND -- 11.6 ND ND 5.6 J ND ND ND -- - ND ug/L 07/17/08 -- - 10 ND -- 27.6 ND ND 1.4 J ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- 9.4 J ND 1.2 J 4.1 J 13.0 -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- 26.5 ND 1.65 J 3.30 J 5.05 J -- -- -- -- ND ug/L 01/04/10 -- - 10 ND -- 17.8 ND ND 3.90 J 9.94 J ND ND -- -- ND ug/L 07/01/10 -- - 10 ND -- 14.4 ND ND 3.65 J 24.0 ND ND -- -- ND ug/L 01/13/11 -- - 10 ND -- 15.7 ND ND 5.50 J 11.0 ND ND -- -- ND ug/L 07/21/11 -- - 10 ND -- 19.7 ND 1.27 J 5.87 J 17.0 ND ND -- -- ND ug/L 01/16/12 -- - 10 ND -- 14.3 ND ND 3.61 J 24.8 ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 18.4 ND 1.43 J 6.03 J 24.8 ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- 13.5 ND 1.74 J 3.55 J 18.8 ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- 13.5 ND 1.26 J 2.54 J 9.81 J ND 3.33 J -- -- ND ug/L 01/30/14 -- - 10 ND -- 13.0 ND ND 2.39 J 14.8 ND 4.60 J -- -- ND ug/L 07/08/14 -- - 10 ND -- 23.4 ND 1.83 J 1.87 J 21.0 ND 4.34 J - -- ND ug/L 03/03/15 1.10 - 10 ND -- 15.2 ND ND 2.20 J 25.3 ND 4.31 J -- -- ND ug/L 08/12/15 1.10 - 10 1.18 J -- 19.4 ND 3.09 J 2.34 J 20.8 ND 3.55 J -- -- ND ug/L 02/17/16 1.10 - 10 1.14 J -- 14.9 ND 1.59 J 1.70 J 14.3 ND 2.83 J -- -- ND J ug/L 07/14/16 1.10 - 10 ND -- 15.6 ND ND ND 17.1 ND 4.28 J -- -- ND ug/L 01/11/17 1.10 - 10 ND -- 17.9 ND ND 3.89 J 14.7 ND 4.39 J 7.41 J 7.90 J ND ug/L 07/11/17 1.10 - 10 ND -- 10.7 ND ND ND 10.4 ND 6.25 J 5.03 J 11.1 ND (Dissolved) ug/L 07/11/17 1.10 - 10 - -- -- -- - -- -- -- -- -- 10.4 -- ug/L 01/09/18 1.10 -- 10 ND -- 18.8 J ND 3.92 J 2.58 J 15.9 ND 8.32 J 9.14 J 17.1 ND ug/L 07/26/18 1.40 10 -- ND -- 12.8 ND 3.12 J ND 12.0 ND 12.0 12.3 19.3 ND ug/L 01/30/19 1.40 10 -- ND -- 6.47 J ND ND ND 15.8 ND 7.87 J 8.79 J 9.23 J ND ug/L 07/10/19 1.40 10 ND ND 13.9 ND ND ND 15.3 ND 8.19 J 7.80 J 15.0 ND Copper ug/L 01/16/07 -- -- 10 14.5 -- ND ND 4.60 J ND ND 12.3 ND -- -- ND NC 2L = 1000 ug/L ug/L 07/02/07 -- - 10 8.8 J -- ND ND ND ND ND 16.3 3.4 J -- -- ND EPA MCL=1300 ug/0 ug/L 01/30/08 -- - 10 3.00 J -- ND ND 1.90 J ND ND 2.70 J 5.30 J -- -- ND J ug/L 07/17/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/16/09 -- - 10 ND -- ND ND ND ND ND -- - -- -- 6.42 ug/L 01/04/10 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND 2.72 B ND ND ND ND -- -- 1.65 ug/L 01/16/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 01/14/13 -- - 10 ND -- ND 1.67 J ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 10 1.63 J -- ND ND 1.93 J ND ND ND ND -- -- ND ug/L 01/30/14 -- - 10 ND -- ND ND ND ND ND ND 2.73 J -- -- ND ug/L 07/08/14 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 1.60 - 10 4.20 J -- ND ND 2.18 J ND ND ND ND -- -- ND ug/L 08/12/15 1.60 - 10 ND -- ND ND ND ND 6.76 J ND 20.3 -- -- ND ug/L 02/17/16 1.60 - 10 ND -- ND ND ND ND ND ND 3.28 B -- - 3.66 ug/L 07/14/16 1.60 - 10 ND -- ND ND ND ND ND ND 1.99 B -- -- 3.50 J ug/L 01/11/17 1.60 -- 10 4.48 B -- 2.78 B 3.45 B 3.26 B 1.97 B 2.25 B 3.25 B 6.10 B 3.40 B 3.28 B 6.33 J ug/L 07/11/17 1.60 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 1.60 - 10 ND -- ND ND 3.97 J ND ND ND ND ND ND ND ug/L 07/26/18 1.60 10 -- ND -- ND ND ND ND ND ND ND ND ND 2.02 J ug/L 01/30/19 1.60 10 -- ND -- ND ND ND ND ND ND 2.19 J ND ND ND u /L 1 07/10/19 1.60 1 10 2.47 B 1.92 B 2.12 B ND 2.38 B ND ND ND 2.60 B 2.22 B ND 3.52 J Lead ug/L 10/08/03 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND NC 2L = 15 ug/L ug/L 01/23/04 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND EPA MCL=15 ug/L" ug/L 07/08/04 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/06/05 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/09/06 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/12/06 -- - 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 ND -- ND ND ND ND 3.1 J 4.5 J ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/16/09 -- - 10 ND -- 3.10 J ND ND ND ND -- - -- -- ND ug/L 01/04/10 -- - 10 ND -- 4.04 B 1.46 B ND 2.76 B 2.08 B ND ND -- -- 1.24 ug/L 07/01/10 -- -- 10 ND -- 2.61 J ND ND 2.84 J ND ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- 4.02 J ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- 3.08 J ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 4.54 J ND 2.45 J 6.10 J ND ND 1.90 J -- -- ND ug/L 07/09/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- - 10 ND -- 4.05 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- - 10 ND -- 3.42 J ND ND 4.35 J ND ND ND -- -- ND ug/L 07/08/14 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 2.10 - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 3.10 -- 10 ND -- 5.51 J ND ND ND 3.62 J ND ND -- -- ND ug/L 02/17/16 3.10 - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 3.10 - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 3.10 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 3.10 - 10 ND -- 5.28 J ND ND ND ND ND ND ND ND ND ug/L 01/09/18 3.10 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 3.10 10 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 3.10 10 - ND -- ND ND ND ND ND ND 6.37 J ND ND ND u /L 1 07/10/19 3.10 1 10 ND ND ND ND ND ND ND ND ND ND ND ND Mercury ug/L 10/08/03 -- - 0.5 ND -- ND ND ND ND ND -- - -- -- ND NC 2L = 1 ug/L ug/L 01/23/04 -- - 0.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/08/04 -- - 0.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/25/05 -- -- 0.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/06/05 -- - 0.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/09/06 -- - 0.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/12/06 -- - 0.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/16/07 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 07/02/07 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 01/30/08 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 0.2 ND -- ND ND ND ND ND -- - -- -- -- ug/L 07/16/09 -- - 0.2 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/04/10 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 01/16/12 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- - 0 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 03/03/15 -- - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.170 - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.170 - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.170 - 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.170 -- 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.0990 - 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.0990 - 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.150 0.200 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.150 0.200 - ND -- ND ND ND ND ND ND ND ND ND ND u /L 1 07/10/19 1 0.150 1 0.200 ND 0.289 ND ND ND ND ND ND ND ND ND ND 4 GOLDER 2 of November 2019 19116638.102 TABLET Summary of Detected Inorganic Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina SWS Upgradlent Downgradient Parameter Reporting Sample MDL MRL Reporting Blanks Units Data Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Nickel ug/L 01/16/07 -- - 50 3.8 J -- ND ND ND ND ND 17.2 J ND -- -- ND NC 2L = 100 ug/L ug/L 07/02/07 -- - 50 ND -- 3.0 J ND ND ND ND 19.0 J ND -- -- ND No EPA MCL ug/L 01/30/08 -- - 50 2.5 J -- 3.6 J 2.4 J 3.7 J 6.5 J ND 6.0 J 3.3 J -- -- ND ug/L 07/17/08 -- - 50 2.1 J -- ND ND ND 3.8 J ND 2.3 J ND -- -- ND ug/L 01/14/09 -- - 50 2.4 J -- ND 5.1 J 5.3 J ND ND -- - -- -- ND ug/L 07/16/09 -- - 50 0.790 B -- 4.11 B 1.47 B 0.988 B 1.04 B 1.05 B -- - -- -- 3.80 ug/L 01/04/10 -- - 50 ND -- 2.59 J ND ND 3.20 J ND ND ND -- -- ND ug/L 07/01/10 -- - 50 ND -- ND ND ND ND 2.29 J ND ND -- -- ND ug/L 01/13/11 -- - 50 ND -- ND ND ND ND 5.20 J ND ND -- -- ND ug/L 07/21/11 -- - 50 ND -- ND ND 2.44 J ND 5.56 J ND ND -- -- ND ug/L 01/16/12 -- - 50 ND -- ND ND ND ND 2.77 J ND ND -- -- ND ug/L 07/09/12 -- - 50 ND -- ND ND ND ND 6.24 J ND ND -- -- ND ug/L 01/14/13 -- - 50 ND -- ND 2.05 J ND 4.29 J 3.86 J ND ND -- -- ND ug/L 07/09/13 -- - 50 ND -- 2.37 J ND ND ND 4.34 J 2.81 J 3.27 J -- -- ND ug/L 01/30/14 -- -- 50 ND -- ND ND 1.86 J ND 5.05 J ND 5.44 J -- -- ND ug/L 07/08/14 -- -- 50 ND -- 2.85 J 1.86 J 6.10 J ND 4.71 J ND 3.36 J -- -- ND ug/L 03/03/15 1.80 -- 50 ND -- 3.01 J ND ND ND 6.41 J ND 3.19 J -- -- ND ug/L 08/12/15 1.80 -- 50 ND -- 2.73 J ND ND ND 5.84 J ND 3.37 J -- - ND ug/L 02/17/16 1.80 - 50 ND -- ND 2.27 J ND ND 3.23 J ND 5.44 J -- - ND ug/L 07/14/16 2.20 - 50 ND -- ND ND ND ND 4.27 B 2.20 B 3.63 B -- - 11.9 ug/L 01/11/17 2.20 - 50 ND -- ND ND ND ND 4.40 J 3.14 J 4.87 J ND 2.57 J ND ug/L 07/11/17 2.20 - 50 ND -- ND ND ND ND ND ND ND ND 2.60 J ND ug/L 01/09/18 2.20 - 50 ND -- ND 2.41 J 5.17 J ND 4.45 J 2.42 J 2.52 J ND 3.86 J ND ug/L 07/26/18 2.20 10 -- 2.41 J -- 4.88 J 2.42 J ND ND 5.29 J 3.06 J 7.98 J 2.62 J 5.35 J ND ug/L 01/30/19 2.20 10 - 2.43 J -- ND 2.41 J ND ND 5.79 J 2.42 J 7.83 J 2.41 J 2.49 J ND u /L 07/10/19 2.20 10 ND 2.35 J 4.93 J ND ND ND 7.14 J 3.49 J 6.67 J ND 4.45 J ND Selenium ug/L 10/08/03 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L=20 ug/L ug/L 01/23/04 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL 50 ug/L ug/L 07/08/04 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND uq/L 01/25/05 -- - 20 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/06/05 -- - 20 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/09/06 -- - 20 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/12/06 -- - 20 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/16/07 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND 2.0 J ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND 4.0 J ND ND 3.1 J -- - -- -- ND ug/L 07/16/09 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/04/10 -- - 10 ND -- 1.59 J ND ND ND 2.05 J ND ND -- -- ND ug/L 07/01/10 -- - 10 ND -- 2.72 J ND ND ND 3.59 J ND ND -- -- ND ug/L 01/13/11 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ugli- 07/09/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND uq/L 07/08/14 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.91 - 10 ND -- 1.55 J ND ND ND ND ND ND -- -- ND ug/L 08/12/15 5.00 - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 5.00 - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 6.20 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 6.20 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 6.20 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 6.20 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 6.20 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 6.20 10 -- ND - ND ND ND ND ND ND ND ND ND ND u IL 07/10/19 6.20 10 ND ND ND ND ND ND ND ND ND ND ND ND Silver ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- - -- - ND NC 2L 20 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- - -- - ND EPA MCL=100 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/25/05 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/06/05 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/09/06 -- - 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND 2.5 J ND ND 2.0 J -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- - 10 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/16/09 -- - 10 ND -- 3.75 J 0.990 J ND 1.70 J ND -- - -- -- ND uq/L 01/04/10 -- - 10 ND -- 1.92 J ND ND 1.09 J ND ND ND -- -- ND ug/L 07/01/10 -- - 10 ND -- 2.66 J ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- - 10 ND -- 3.19 J ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- - 10 3.59 J -- 2.28 J ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- - 10 ND -- 2.37 J ND 3.30 J ND ND ND ND -- -- ND ug/L 07/09/12 -- - 10 ND -- 2.38 J ND ND ND 2.88 J ND ND -- -- ND ug/L 01/14/13 -- - 10 ND -- 3.43 J 3.86 J ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 10 2.69 J -- 4.48 J ND 3.36 J 1.90 J 2.31 J 4.86 J 6.81 J -- -- ND ug/L 01/30/14 -- - 10 ND -- 2.95 J ND ND ND ND ND 2.21 J -- -- ND ug/L 07/08/14 -- - 10 ND -- 5.41 J ND ND ND ND ND 2.58 J -- -- ND ug/L 03/03/15 1.90 - 10 ND -- 7.35 J ND ND ND ND ND ND -- - ND ug/L O8112/15 1.90 - 10 2.57 B -- 9.84 B ND 4.90 B 5.27 B 10.6 B 2.14 B 4.53 B -- - 2.59 ug/L 02/17/16 1.90 - 10 ND -- ND ND ND ND ND ND ND -- - ND ug/L 07/14/16 1.90 - 10 ND -- 4.41 J ND ND ND ND ND ND -- - ND ug/L 01/11/17 1.90 - 10 ND -- 6.32 J ND ND ND ND ND 2.06 J ND ND ND ug/L 07/11/17 1.90 - 10 5.30 J -- ND ND ND ND 3.78 J ND 2.59 J 3.30 J 2.57 J ND ug/L 01/09/18 1.90 -- 10 3.53 J -- 15.5 J 2.41 J 4.04 J ND 5.69 J 4.13 J 9.94 J 2.72 J 3.35 J ND ug/L 07/26/18 1.90 10 -- ND -- ND ND ND 14.3 ND ND ND ND ND ND ug/L 01/30/19 1.90 10 -- ND -- ND 4.37 J ND ND ND ND ND ND ND ND u /L 1 07/10/19 1.90 1 10 ND ND ND ND ND ND ND ND ND ND ND ND Thallium ug/L 01/16/07 -- - 5.5 ND -- 0.048 J ND ND ND ND ND ND -- - ND NC 2L IMAC = 0.2 ug/L ug/L 07/02/07 -- - 5.5 0.043 J -- 0.097 J ND ND ND ND ND ND -- -- ND EPA MCL=2 ug/L ug/L 01/30/08 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND uglL 07/17/08 -- -- 5.5 ND -- 0.046 J ND ND ND ND ND ND -- -- ND uglt. 01/14/09 -- -- 5.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 07/16/09 -- - 5.5 ND -- ND ND ND ND ND -- - -- -- ND ug/L 01/04/10 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND uglL 01/16/12 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- - 5.5 ND -- ND ND ND 0.489 J ND ND ND -- -- ND ug/L 07,08/14 -- - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03103'15 0.110 - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND uglL 08/12/15 0.110 - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.110 - 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.110 - 5.5 0.575 J -- 0.211 J 0.502 J 0.482 J 0.414 J 0.169 J 0.303 J 0.345 J -- -- ND ug/L 01/11/17 0.110 - 5.5 ND -- ND ND ND ND ND ND ND ND ND ND uglL 07/11/17 0.110 - 5.5 0.131 J -- ND 0.118 J ND ND ND ND ND 0.143 J 0.148 J ND ug/L 01/09/18 0.050 - 5.5 ND -- ND ND ND ND ND ND ND ND ND ND uglL 07/26/18 0.550 5 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.220 2 - 0.410 J -- 0.223 J 0.399 J 0.354 J ND ND 0.263 J ND 0.293 J 0.263 J ND ug/L 07/10/19 0.220 2 0.315 J ND ND ND ND ND ND ND ND ND 0.401 J ND Vanadium ug/L 01/16/07 -- - 25 7.5 J -- ND ND 4.4 J ND ND 34.4 ND -- -- ND NC 2L IMAC = 0.3 ug/L ug/L 07/02/07 -- -- 25 5.9 J -- ND 1.9 J 2.3 J ND ND 44.3 2.6 J -- -- ND No EPA MCL ug/L 01/30/08 -- -- 25 3.7 J -- ND ND 3.6 J ND ND 13.3 J ND -- -- ND ug/L 07/17/08 -- -- 25 2.5 J -- ND ND 2.9 J ND ND 11.4 J ND -- -- ND ug/L 011, 4/09 -- -- 25 1.7 J -- ND ND 6.8 J ND ND -- - -- -- ND ug/L 07/16/09 -- -- 25 2.16 J -- ND 1.08 J 3.75 J 1.59 J 0.965 J -- - -- -- ND ug/L 01/04/10 -- -- 25 1.91 J -- ND 0.544 J 3.00 J ND ND 10.1 J 2.43 J -- -- ND uglL 07/01/10 -- -- 25 ND -- ND ND ND ND ND 10.5 J ND -- -- ND ug/L 01/13/11 -- -- 25 1.80 J -- ND ND 2.32 J ND ND 10.2 J ND -- -- ND ug/L 07/21/11 -- -- 25 ND -- ND ND 24.6 J ND ND 9.72 J ND -- -- ND ug/L 01/16/12 -- -- 25 1.73 J -- ND ND 42.6 ND ND 9.90 J ND -- -- ND ug/L 07/09/12 -- -- 25 1.55 J -- ND ND 2.05 J ND ND 9.46 J ND -- -- ND ug/L 01/14/13 -- -- 25 1.81 J -- ND ND ND ND ND 10.6 J ND -- -- ND ug/L 07/09/13 -- -- 25 ND -- ND ND 2.32 J ND ND 9.62 J ND -- -- ND ug/L 01/30/14 -- -- 25 ND -- ND ND 6.97 J ND ND 9.31 J ND -- -- ND ug/L 07/08/14 -- -- 25 ND -- ND ND ND ND ND 9.21 J ND -- -- ND ug/L 03/03/15 1.40 -- 25 ND -- ND ND 6.10 J ND ND 9.36 J ND -- -- ND ug/L 08/12/15 1.40 -- 25 ND -- ND ND 4.78 J ND 1.59 J 9.20 J ND -- -- ND ug/L 02117/16 1.40 - 25 ND -- ND ND 11.2 J ND ND 9.15 J ND -- -- ND ug/L 07/114/16 1.40 - 25 ND -- ND ND 1.98 J ND 1.46 J 8.95 J ND -- -- ND ug/L 01111/17 1.40 - 25 ND -- ND ND 7.20 J ND ND 9.24 J ND ND ND ND ug/L 07/11/17 1.40 - 25 ND -- 2.79 J ND 1.69 J 1.89 J 2.10 J 9.77 J ND ND ND ND uglL 01/09/18 1.40 -- 25 ND -- ND ND 22.1 J ND ND 10.3 J ND ND ND ND ug/L 07/26/18 1.40 10 -- ND -- ND ND 1.74 J ND 1.65 J 8.76 J ND ND ND ND ug/L 01/30/19 1.40 10 -- 1.50 J -- ND ND 1.93 J ND ND 9.20 J ND ND ND ND ug/L 07/10/19 1.40 10 ND ND ND ND ND ND 2.04 J 9.57 J ND ND ND ND 4 GOLDER 3 of4 November 2019 19116638.102 TABLET Summary of Detected Inorganic Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina SWS Upgradlent Downgradient Parameter Reporting Sample MDL MRL Reporting Blanks Units Data Limit MW-1 P-3 MW-2 MW-3 MW4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Zinc ug/L 01/16/07 -- - 10 25.7 B -- 4.0 B 6.5 B 23.4 B 9.1 B 11.0 B 48.1 B 7.4 B -- -- 10.0 NC 2L = 1000 ug/L ug/L 07/02/07 -- - 10 ND -- 28.0 ND ND ND 10.1 41.1 3.9 J -- -- ND EPA MCL = 5000 ug/L* ug/L 01/30/08 -- - 10 2.3 B - 1.8 B 2.9 B 3.8 B 3.0 B 4.9 B 9.1 J 4.4 B -- -- 1.6 ug/L 07/17/08 -- - 10 ND -- ND ND ND ND 4.2 J ND ND -- -- ND ug/L 01/14/09 -- - 10 ND - 3.8 J ND ND ND ND -- - -- -- ND ug/L 07/16/09 -- - 10 6.77 B -- 4.89 B 5.55 B 7.01 B 5.28 B 3.44 B -- - -- -- 20.5 ug/L 01/04/10 -- - 10 1.72 B -- 6.20 B 2.24 B 2.35 B 2.57 B 3.88 B ND 2.98 B -- -- 2.25 ug/L 07/01/10 -- - 10 ND - ND ND ND 6.66 J 7.04 J 4.90 J ND -- -- ND ug/L 01/13/11 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- - 10 ND - ND ND 4.06 J ND 5.52 J ND ND -- -- ND ug/L 01/16/12 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- - 10 ND - ND ND ND ND 5.67 J ND ND -- -- ND ug/L 01/14/13 -- - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- - 10 ND -- ND ND ND ND 4.35 J ND 3.98 J -- -- ND ug/L 01/30/14 -- - 10 3.97 J -- 4.83 J 4.13 J 5.51 J ND 5.86 J ND 7.30 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- ND 3.86 J ND 9.69 J ND ND 5.50 J -- -- ND ug/L 03/03/15 3.80 -- 10 ND -- ND ND 4.77 J ND ND ND ND -- -- ND ug/L 08/12/15 3.80 - 10 ND -- 4.12 J ND 8.46 J ND 15.8 ND 9.95 J -- -- ND ug/L 02/17/16 3.80 - 10 60.0 -- 5.54 J ND 25.8 6.06 J ND ND 4.75 J -- -- ND ug/L 07/14/16 4.40 - 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 4.40 - 10 ND -- ND ND ND ND ND ND 6.11 J ND ND ND ug/L 07/11/17 4.40 - 10 ND -- 5.01 J ND ND ND ND ND ND ND ND ND ug/L 01/09/18 4.40 - 10 ND - ND ND 4.68 J ND ND ND 6.05 J ND ND ND ug/L 07/26/18 4.40 10 -- 4.43 J -- 4.90 J ND 7.68 J 4.54 J ND ND ND ND ND ND ug/L 01/30/19 4.40 10 -- ND - ND ND ND 8.31 J ND ND ND ND ND ND u /L 1 07/10/19 4.40 1 10 5.55 J ND 6.70 J ND 4.62 J ND ND ND ND ND ND ND Iron ug/L 01/16/07 -- -- -- 2530 -- 3410 80 J 1020 9860 700 16400 680 NC 2L = 300 ug/L ug/L 07/02/07 -- -- 300 1510 -- 18600 46 J 314 4960 592 19500 497 -- -- -- EPA MCL = 300 ug/L* ug/L 01/30/08 -- - 300 533 -- 327 31 J 2220 21100 106 J 3320 1110 -- -- ND ug/L 07/17/08 -- - 300 161 J - 10300 ND 1730 8620 ND 448 69 J -- -- ND ug/L 01/14/09 -- - 300 65 J -- 2740 26 J 3300 28800 1110 -- - -- -- ND ug/L 07/16/09 -- - 300 84.2 J - 18000 ND 2490 7570 642 -- - -- -- ND ug/L 01/04/10 -- - 300 155 J -- 10700 90.1 J 1980 33600 1750 L 58.6 J 228 J -- -- ND ug/L 07/01/10 -- -- 300 42.7 J - 21100 63.2 J 1050 42000 4290 132 J ND -- -- ND ug/L 01/13/11 -- -- 300 30.4 J -- 29100 36.4 J 803 4120 1170 269 J 90.9 J -- -- ND ug/L 07/21/11 -- -- 300 44.5 J -- 35900 47.1 J 218100 37800 1900 85.7 J 41.0 J -- -- -- ug/L 01/16/12 -- -- 300 133 J -- 15700 37.9 J 11300 45400 5270 90.1 J 27.6 J -- -- ND ug/L 07/09/12 -- -- 300 32.7 J -- 44700 28.2 J 1800 17000 7570 43.8 J 49.2 J -- -- ND ug/L 01/14/13 -- -- 300 50.4 J -- 31300 72.9 J 1440 5230 3040 143 J 148 J -- -- ND ug/L 07/09/13 -- -- 300 76.6 J -- 27200 39.0 J 1690 41300 2080 79.4 J 325 -- -- ND ug/L 01/30/14 -- -- 300 87.8 J -- 24500 208 J 5330 56300 2110 49.6 J 2570 -- -- ND ug/L 07/08/14 -- -- 300 ND -- 56100 65.3 J 1400 35300 4260 61.3 J 3900 -- -- ND ug/L 03/03/15 22.0 -- 300 61.4 B -- 30800 38.2 B 1860 91700 3660 ND 6600 -- -- 73.8 ug/L 08/12/15 22.0 -- 300 ND -- 59100 47.7 J 1630 46200 9550 28.6 J 876 -- -- ND ug/L 02/17/16 22.0 -- 300 51.8 J -- 21200 100 J 2"0 39400 5840 38.4 J 1020 -- -- ND uglL 07/14/16 22.0 -- 300 ND -- 27800 48.8 B 907 35500 6010 38.4 B 4620 -- -- 23.3 J ug/L 01/11/17 22.0 - 300 61.7 J -- 46000 67.1 J 4860 57000 4240 ND 2090 1590 525 ND ug/L 07/11/17 22.0 - 300 29.7 J -- 33200 62.6 J 1160 44100 7870 ND 3940 1290 2590 ND (Dissolved) ug/L 07/11/17 22.0 - 300 - - -- -- -- -- -- -- -- -- 26.7 J -- ug/L 01/09/18 22.0 - 300 54.9 J -- 51600 91.9 J 5770 15500 6680 33.7 J 781 1890 3950 ND ug/L 07/26/18 22.0 50 - 25.3 J - 45400 76.5 549 29500 7800 ND 1000 4750 5410 ND uglL 01/30/19 22.0 50 - 23.3 J -- 14100 41.7 J 643 35200 6900 24.1 J 2010 5730 3140 ND ug/L 07/10/19 22.0 50 26.7 J 483 56100 66.1 835 24100 12600 55.8 3770 3440 5070 ND Manganese ug/L 01/16/07 -- - 50.6 -- 6160 4.7 J 39.1 2620 361 205 204 -- -- -- NC 2L = 50 ug/L ug/L 07/02/07 -- - 50 30.6 J -- 9540 4.2 J 29.5 J 1040 21.3 J 229 244 -- -- -- EPA MCL = 50 ug/L* ug/L 01/30/08 -- -- 50 16.1 J -- 7760 8.0 J 27.3 J 4340 12.6 J 64.8 208 -- -- ND ug/L 07/17/08 -- -- 50 26.7 J -- 25900 14.1 J 35.8 J 1080 10.5 J 11.1 J 94.2 -- -- ND ug/L 01/14/09 -- -- 50 3.5 J -- 10400 10.7 J 24.4 J 3450 718 -- -- -- -- ND ug/L 07/16/09 -- -- 50 15.7 J -- 25200 16.8 J 76.9 2480 340 -- -- -- -- ND ug/L 01/04/10 -- -- 50 5.12 J -- 13200 21.9 J 36.3 J 3200 707 2.50 J 77.3 -- -- ND ug/L 07/01/10 -- -- 50 8.43 B -- 15300 21.0 J 42.3 J 3420 1850 6.80 B 85.1 -- -- 2.75 ug/L 01/13/11 -- -- 50 6.90 J -- 20100 20.9 J 17.7 J 3290 2490 9.13 J 73.4 -- -- ND ug/L 07/21/11 -- -- 50 6.10 J -- 19600 19.0 J 54.5 3020 2470 3.62 J 551 -- -- -- ug/L 01/16/12 -- -- 50 5.41 J -- 8520 22.4 J 37.6 J 3280 2"0 ND 73.1 -- -- ND ug/L 07/09/12 -- -- 50 3.82 J -- 17900 12.1 J 54.2 1890 3530 1.79 J 1160 -- -- ND ug/L 01/14/13 -- -- 50 4.14 B -- 14300 24.2 J 92.2 2280 2720 4.32 B 183 -- -- 1.28 ug/L 07/09/13 -- -- 50 18.1 J -- 19000 16.9 J 62.6 2290 1790 6.22 J 1840 -- -- ND ug/L 01/30/14 -- -- 50 7.75 J -- 16800 36.8 J 37.8 J 3120 2580 2.73 J 2090 -- -- ND ug/L 07/08/14 -- -- 50 5.04 B -- 24900 16.4 J 59.0 2060 2640 8.60 B 2010 -- -- 1.97 ug/L 03/031,5 1.10 -- 50 6.00 J -- 17300 16.1 J 20.4 J 2480 3120 ND 2480 -- -- ND ug/L 08/12/15 1.10 -- 50 4.21 B -- 20800 14.3 J 76.4 2410 3030 2.08 B 1670 -- -- 1.18 ug/L 02/17/16 1.10 -- 50 7.36 J -- 16800 15.8 J 53.1 2240 3530 2.26 B 2040 -- -- 1.19 ug/L 07141 6 1.10 -- 50 5.24 B -- 18100 12.9 J 51.5 1970 3490 4.93 B 2650 -- -- 1.82 J ug/L 01/111,7 1.10 -- 50 5.30 J -- 24800 17.6 J 34.6 J 2860 4090 1.44 J 4820 2980 1150 ND ug/L 07/11/17 . 110 50 7.16 J 18200 14.6 J 44.6 J 1940 3760 1.58 J 8540 2930 1570 ND (Dissolved) ug/L 5 7840 2960 170 ND ug/L 01,09"" 1.10 -- 50 6.80 B -- 21400 26.0 J 97.6 (92.2) 1800 5450 3.06 B 19300 06600) 3620 3340 2.57 J (Dissolved) ug/L 01/09/18 1.10 -- 50 -- -- -- -- -- 16800 -- -- ND Verification Event ug/L 03/16/18 1.10 - 50 - -- -- -- - -- -- -- 19600 -- -- ND (Dissolved) ug/L - 5 -- -- -- -- - -- -- -- 20200 -- -- ND uglL 07/26/18 1.50 10 - 5.21 B -- 15400 13.2 B 74.6 1800 4950 ND 19500 4740 3590 2.80 J ug/L 01/30/19 1.50 10 - 5.24 J -- 9540 15.1 40.2 1540 4840 ND 20900 5980 1910 ND u /L 07/10/19 1.50 10 7.49 B 28.3 19000 15.6 B 148 1170 6400 3.07 B 21400 5010 3430 3.63 J Notes: 1. MW -groundwater monitoring well 2. ug/L= micrograms per liter 3. mg/L =milligrams per liter 4. J = Prior to the 07118 event, J flags are estimated values below the SWS Reporting limit. Beginning with the 07/18 event, J flags are estimated values between MDL and POL. 5. B = blank -qualified data 6. ND = not detected at or above the stated reporting limit 7. Standards - NC 2L Groundwater Standards or North Carolina Solid Waste Section Groundwater Protection Standards 8. -= no data available 9. Bolded = Concentrations above the current NC 2L Groundwater Standards or Solid Waste Section Groundwater Protection Standards (SWS GPS) have been bolded. 10. Shaded = Concentrations above the current EPA Maximum Contaminate Level (MCL) have been shaded. l 1. Blanks = Field, trip, and laboratory blanks. 12. SWS Reporting Limit = NCPOL prior to 2007 and NCSWSL starting in 01/18/07 13. #=EPA Action Level 14. * = EPA Secondary MCL 15. Data prior to 01/09/06 provided by Joyce Engineering, Inc. 16. P-3 added as an additional upgradient well for Appendix 1 metals sampling as of 07/10/19 17. The following dilutions were noted for the July 2019 event: Antimony and Thallium 2x in all wells; Sulfate 3x in MW-1; Chloride 2x in MW-8 and AMW-2, 3x in MW-6, and 5x in MW-2; Total Alkalinity as CaCO3 5x in MW-8 and AMW-2 and 1 Ox in MW-2 and MW-6; 1,4-Dioxane 5x in MW-2 and AMW-2, and 1 Ox in MW-6 4 GOLDER 4ura 0 \ o - o aoo � o ••:06110-ia-m- m 08L wil G _� *40 I �\ `7 Ib II El \ I oo� 790 FACT ITY PROP RTY /�� BOU DARY ^moo \ YY BH-1 744 o ,,;;-4') 1 794. 60 1 763.84 7 I ` �05.4 810.5 \ RECLAMATION S 58.4 a2° I FACILITY BH-4 MW-1 796.82 .910.5 r4� / 5p %R 747 7 7 / � 1 / 09.6 / 810g .5 4 ` 8.3 / / •810.4 10.2 •` IM ' 809.9 , 1 LEGEND SITE LOCATION MAP EXISTING 10' CONTOURS EXISTING 2' CONTOURS r / / PROPERTY LINE • O / / \lam-_-//// ` 95 ` �90 STREAM a 'p •7830 S ♦` 7.3 I H ♦ - _ TREELINE / I � 788 � � i ❑ - �, / / • 9 { I EXISTING ROAD 861.5 I ' 800 1 -3 622 ► ice_ 84. 1 8W_� I - - - - - PROPOSED OR EXISTING LIMITS OF WASTE S f ,� 1 MW-3 MONITORING WELL LOCATION IDENTIFICATION AND Mown 772,5 NA ENC _ •803b , 06L IV 737.59 GROUNDWATER ELEVATION DII 7 4e^ s Ilk © i°n 1, I�� ❑ SW-1 SURFACE WATER MONITORING POINT i1 =� 8B•3 �� e e° L'�34{ 008 �� 1P-3 PROPOSED MONITORING WELL LOCATION 784.11 ]]1.5 1 • \ ® BM-1 BENCH MARK 7803D •787.7 `\ 7'\ J1 18 760 -6� -„0 \ - , -'' 9•791,3 o �, I BH-1 BARHOLE PUNCH LOCATIONS 1, ] 796 96.9 ♦ \ ��-� � 0 GAS VENT -�'' 7336• IR •77b3 9.2� SB-1 SEDIMENT BASIN 744.E , 1� ` ^� 1� Q .6 1 ^ / n •777.2 •783.9 790 8�9 / �. `\ \ 7Rn GROUNDWATER SURFACE CONTOURS GROUNDWATER FLOW SEGMENT USED TO - 776.3 _ L/ WE]52 ' •765.6 ` \ NOTES CALCULATE GRADIENT 5.809.9 74 -`__ 11p Alp 1 y WE738.• \ \ I 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET W F ]381.7 .3' 3. GROUNDWATER ELEVATIONS MEASURED ON JULY 10 2019. 'S' 4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND ` o W \ \ EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS AND KNOWN FIELD 0 n ... •720.2 720 110 X -� Sao AN M 41 o CREEK NM R W m I _ I ❑ CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL \ \ \ CONDITIONS. \ \ 5. GROUNDWATER CONTOURS LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE \ CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE k - ----- - \ RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. O\ 6. THE GROUNDWATER ELEVATIONS FOR MW-4D AND MW-7D WERE NOT USED IN THE CONSTRUCTION OF GROUNDWATER CONTOURS. 7. DRAWING BASED ON SITE PLAN PLAN PREPARED BY JOYCE ENGINEERING, INC DATED JULY 7, 2004. F �/' 8. UPDATED TOPOGRAPHY PROVIDED FROM AERIAL SURVEY PREPARED BY GEODATA CORP = 0 200 400 DIGITAL MAPPING SERVICES, PHOTOGRAPHY DATE JANUARY 6, 2018 AND JANUARY 18, 2019. F SCALE //JlJ//llll Ftt/j 9• THE GROUNDWATER ELEVATION FOR MW-4D WAS NOT USED IN THE CONSTRUCTION OF CLIENT WASTE INDUSTRIES USA, INC. CONSULTANT YYYY-MM-DD 2019-10-29 PREPARED ABR V DESIGN NTT G 0 L D E R REVIEW DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK PROJECT WASTE INDUSTRIES OF HIGH POINT CONSTRUCTION AND DEMOLITION DEBRIS LANDFILL AND RECLAMATION FACILITY GUILFORD COUNTY, NORTH CAROLINA TITLE GROUNDWATER CONTOUR MAP JULY 109 2019 PROJECT No. PHASE Rev. FIGURE 19116638 102 0 0 LOG OF BORING'P=3 • • • - (Page 1 of 1) ENGINEERING, INC MRR of High Point, LLC Date Started : 02/t2/02 Drilling Company :Bedford Well Drilling, Inc. C&D Permit Application Daze Completed : 02l12/OZ Northing Coordinate : 8020832683 High Point, NC Hole Diameter : 8.25-inch Fasting Coordinate : 1727807.8522 JEI Project No. 600.00, Task 04 Drilling Method : HSA Surveyed By : Robert>w Wilson, Inc. Sampling Method :Split Spoons, cuttings Logged By :Rachel P. Kirkman, P.G. 'E Well: P-3 Depth Surf. o TOC Elevation: 790.06 in Elev. 3 R co DESCRIPTION Well Construction Feet `i87.62 .2 ] In%1TI]ahOn 0 2 TOPSOIL - dark brown with organic v A, WELL CONSTRUCTION 787 3 75 matter Date Completed : 02/I2l02 ANDY CLAY -brown, moist, loose Hole Diameter : 5.25-inch 4 Drilling Method :Hollow Stem Augers SILTY SAND/SANDY SILT Company Rep. : Kevin Kendrick very moist, loose WELL CASING •; Grout SM (0'-5.5) Material : Schedule 40 PVC :c Diameter :2-inch Joints :Threaded, flush -coupled SANDY SILT -fight brown, stiff, Approx. Csg. Stickup : 2.44feet 5 8 moist quartz, feldspar, faint granitic WELL SCREEN 782 11 100 texture Material : Schedule 40 PVC 13 SANDY CLAY - light brown/gray, Diameter :2-inch stiff, moist Joints : Thredded, flush -coupled $entonitc Seal Opening : 0A10 inch, slotted SC (5.5'-U GRAVEL PACK Type : DST # 2 Sand WELL SCREEN SEAL Riser Plpe Type : 3/8" Beatonite chips (-2.44'- 0) ANNULUS SEAL 10 2 SILTY SAND - light brown, coarse- Type :No. 1 Portland grout 5 grained, very moist, faint granitic 75 777 texture 9 1. Drilling performed with an Acker Soil Max drilling rig utilizing 4.25-inch ID hollow stem SM augers to approximately 10 fat 2. Solid triangle represents water level at time of drilling of 835 feet below TOC. Open triangle represents 24hour water level at 4.39 fcet below TOC. Closed diamond represents 15 15 PARTIALLY WEATHERED ROCK 7-day water level at 5.20 feet below TOC. 22 100 silty sand light brown/white, 772 coarse -grained, slightly moist, stiff, 3. Bulk sample of sandy clay taken at 25 prominent granitic fabric ximatetly 10 feet for Sand Pack �° laboratory testing. Drilling progess slowed (stiffer) (s'-25) Screen Water encountered at approximately (10'-251 19 feet 20 11 PWR color change to light brown/white/ 767 23 75 orange, moist, very prominent 22 granitic fabric color change to white/gray/light 38 brown/orange, slightly moist, very 50l5 30 stiff Boring terminated at approximately 25 25 feet k�jo GOLDERr� Project Name: PoW-:� Well ID: f 3 Well Diameter: 2 inches Depth to Bottom: 2 1. S 9- feet Pumping Rate: (3.3s gal/min. Well Location: Equipment: DATE: G ^ ( T—`1 WELL DEVELOPMENT LOG Project No./Phase No.: C I ` 4 c0 3 2! Sampler(s): E. Vasko Initial Depth to Water: feet Water Column Thickness: 2 -3, CIG feet . _�i% G KYNUM��//'-&7��� -_ _ i��I•��riYL3�711 v t� ���®�iL� - - ►21����� �,M A _1M 111115- NORM MIN®R --�tr�r•��ar��s����r�MIMS V Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: (' lirnn" VolSignature:el _ Date: C- (x— ll Page A- of I � too MAIM-- GOLDEIR Project Name: WI - High Point Well ID: F - Well Diameter: 2 inches Depth to Bottom: Z7 - feet Zw 3 % Pumping Rate: � 4 1 Well Location: Equipment: YS/ Pro OOmUmin. DATE.. 7 f 1 �l GROUNDWATER SAMPLING LOG Project No./Phase No.: 19116638 Sampler(s): E. Vasko Initial Depth to Water: ,-f S- feet Water Column Thickness: 21. 7 feet System Volume: mL Hach 2100Q, Water Level Meier, +/- 0.1 +l- 5% <10 +/-10% or 0.2 +l 10 (ideal) Time pH S.U. Sp. Cond. uS/cm) Turb (NTU) Dis OZ Temp. (°C ORP millivolts DTW feet > 312 L.-7 t GO- 2 s5 116 Pcl-y�y3 \ . 43 S� • s S 2.3 5 7 G• 3 .G . T O )8-3 40.0 ,K-1 15-7, cl 55, z 7 9< 2, Z-G !�7 D 1 le?-L( y-z 1 1 OZ ,-10 I5q. C1 QS.3 I,y 3 15• 2 ��•S 1 U S. -toSb. S I.9U 4. - Z 6,61 �zC, 41 156,1 F.0 tt -C,0-11 156, S, o YS 2T> -3 , �( 11401 S %-t D t 51- ,1 1-3.'q 1. 6 V- v y5 , sY Ll'yv S.LI t5i.u1 �l. I. tti.Ll S U S it I.bg d0 , t 00 ,S W5 I wk, l 7-0. v v , .S 9,40 0-Li 10 s U c�5 Aq v 3) t .�,lei, Opt. b Is D Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Begin purging @ 117110 Signature: Date: / QA/QC Sign Off: Date: