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HomeMy WebLinkAboutMO-9254_40718_G_WSW_20230418_RAMSEY7HREREQ April 18, 2023 MEMORANDUM TO: Vance Jackson, UST Section Branch Head, Division of Waste Management, 1646 Mail Service Center, Raleigh, NC 27699-1646 (FAX (919) 707-8241) FROM: Brad Newton, Mooresville Regional Office, UST Section SUBJECT: Request for Health Risk Evaluation of Water Supply Tracking ID: Incident Number: 40718 Enclosed please find the analytical results for a water sample collected on March 31, 2023, from the Ramsey water supply well, identified as WSW-7, located at 1939 Perfection Road, Belmont, Gaston County. Please perform a health risk evaluation and send the evaluation with your recommendation and a copy of this memo to me. I will then forward the health risk evaluation and recommendation to any well users. If you have questions or need additional information, please contact me at the address or telephone number below. Thank you for your assistance. Attachment(s): Ramsey Sample Analytical Results #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92659969 FOUR POINT 76 Sample:WSW-7 Lab ID:92659969012 Collected:03/31/23 11:55 Received:03/31/23 14:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 04/05/23 00:27 71-43-20.50 1 Bromobenzene ND ug/L 04/05/23 00:27 108-86-10.50 1 Bromochloromethane ND ug/L 04/05/23 00:27 74-97-50.50 1 Bromodichloromethane ND ug/L 04/05/23 00:27 75-27-40.50 1 Bromoform ND ug/L 04/05/23 00:27 75-25-20.50 1 Bromomethane ND ug/L 04/05/23 00:27 74-83-95.0 1 n-Butylbenzene ND ug/L 04/05/23 00:27 104-51-80.50 1 sec-Butylbenzene ND ug/L 04/05/23 00:27 135-98-80.50 1 tert-Butylbenzene ND ug/L 04/05/23 00:27 98-06-60.50 1 Carbon tetrachloride ND ug/L 04/05/23 00:27 56-23-50.50 1 Chlorobenzene ND ug/L 04/05/23 00:27 108-90-70.50 1 Chloroethane ND ug/L 04/05/23 00:27 75-00-31.0 1 Chloroform ND ug/L 04/05/23 00:27 67-66-30.50 1 Chloromethane ND ug/L 04/05/23 00:27 74-87-31.0 1 2-Chlorotoluene ND ug/L 04/05/23 00:27 95-49-80.50 1 4-Chlorotoluene ND ug/L 04/05/23 00:27 106-43-40.50 1 1,2-Dibromo-3-chloropropane ND ug/L 04/05/23 00:27 96-12-81.0 1 Dibromochloromethane ND ug/L 04/05/23 00:27 124-48-10.50 1 1,2-Dibromoethane (EDB)ND ug/L 04/05/23 00:27 106-93-40.50 1 Dibromomethane ND ug/L 04/05/23 00:27 74-95-30.50 1 1,2-Dichlorobenzene ND ug/L 04/05/23 00:27 95-50-10.50 1 1,3-Dichlorobenzene ND ug/L 04/05/23 00:27 541-73-10.50 1 1,4-Dichlorobenzene ND ug/L 04/05/23 00:27 106-46-70.50 1 Dichlorodifluoromethane ND ug/L 04/05/23 00:27 75-71-80.50 1 1,1-Dichloroethane ND ug/L 04/05/23 00:27 75-34-30.50 1 1,2-Dichloroethane ND ug/L 04/05/23 00:27 107-06-20.50 1 1,1-Dichloroethene ND ug/L 04/05/23 00:27 75-35-40.50 1 cis-1,2-Dichloroethene ND ug/L 04/05/23 00:27 156-59-20.50 1 trans-1,2-Dichloroethene ND ug/L 04/05/23 00:27 156-60-50.50 1 1,2-Dichloropropane ND ug/L 04/05/23 00:27 78-87-50.50 1 1,3-Dichloropropane ND ug/L 04/05/23 00:27 142-28-90.50 1 2,2-Dichloropropane ND ug/L 04/05/23 00:27 594-20-70.50 1 1,1-Dichloropropene ND ug/L 04/05/23 00:27 563-58-60.50 1 cis-1,3-Dichloropropene ND ug/L 04/05/23 00:27 10061-01-50.50 1 trans-1,3-Dichloropropene ND ug/L 04/05/23 00:27 10061-02-60.50 1 Diisopropyl ether ND ug/L 04/05/23 00:27 108-20-30.50 1 Ethylbenzene ND ug/L 04/05/23 00:27 100-41-40.50 1 Hexachloro-1,3-butadiene ND ug/L 04/05/23 00:27 87-68-32.0 1 Isopropylbenzene (Cumene)ND ug/L 04/05/23 00:27 98-82-80.50 1 Methylene Chloride ND ug/L 04/05/23 00:27 75-09-22.0 1 Methyl-tert-butyl ether 0.89 ug/L 04/05/23 00:27 1634-04-40.50 1 Naphthalene ND ug/L 04/05/23 00:27 91-20-32.0 1 n-Propylbenzene ND ug/L 04/05/23 00:27 103-65-10.50 1 Styrene ND ug/L 04/05/23 00:27 100-42-50.50 1 1,1,1,2-Tetrachloroethane ND ug/L 04/05/23 00:27 630-20-60.50 1 1,1,2,2-Tetrachloroethane ND ug/L 04/05/23 00:27 79-34-50.50 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 26 of 64 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92659969 FOUR POINT 76 Sample:WSW-7 Lab ID:92659969012 Collected:03/31/23 11:55 Received:03/31/23 14:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Tetrachloroethene ND ug/L 04/05/23 00:27 127-18-40.50 1 Toluene ND ug/L 04/05/23 00:27 108-88-30.50 1 1,2,3-Trichlorobenzene ND ug/L 04/05/23 00:27 87-61-62.0 1 1,2,4-Trichlorobenzene ND ug/L 04/05/23 00:27 120-82-12.0 1 1,1,1-Trichloroethane ND ug/L 04/05/23 00:27 71-55-60.50 1 1,1,2-Trichloroethane ND ug/L 04/05/23 00:27 79-00-50.50 1 Trichloroethene ND ug/L 04/05/23 00:27 79-01-60.50 1 Trichlorofluoromethane ND ug/L 04/05/23 00:27 75-69-41.0 1 1,2,3-Trichloropropane ND ug/L 04/05/23 00:27 96-18-40.50 1 1,2,4-Trimethylbenzene ND ug/L 04/05/23 00:27 95-63-60.50 1 1,3,5-Trimethylbenzene ND ug/L 04/05/23 00:27 108-67-80.50 1 Vinyl chloride ND ug/L 04/05/23 00:27 75-01-41.0 1 m&p-Xylene ND ug/L 04/05/23 00:27 179601-23-11.0 1 o-Xylene ND ug/L 04/05/23 00:27 95-47-60.50 1 Surrogates 1,2-Dichloroethane-d4 (S)91 %04/05/23 00:27 17060-07-070-130 1 4-Bromofluorobenzene (S)97 %04/05/23 00:27 460-00-470-130 1 Toluene-d8 (S)103 %04/05/23 00:27 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 27 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 765574 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92659969003, 92659969008, 92659969016, 92659969017 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3975206 Associated Lab Samples:92659969003, 92659969008, 92659969016, 92659969017 Matrix:Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 04/04/23 13:28 1,1,1-Trichloroethane ug/L ND 0.50 04/04/23 13:28 1,1,2,2-Tetrachloroethane ug/L ND 0.50 04/04/23 13:28 1,1,2-Trichloroethane ug/L ND 0.50 04/04/23 13:28 1,1-Dichloroethane ug/L ND 0.50 04/04/23 13:28 1,1-Dichloroethene ug/L ND 0.50 04/04/23 13:28 1,1-Dichloropropene ug/L ND 0.50 04/04/23 13:28 1,2,3-Trichlorobenzene ug/L ND 2.0 04/04/23 13:28 1,2,3-Trichloropropane ug/L ND 0.50 04/04/23 13:28 1,2,4-Trichlorobenzene ug/L ND 2.0 04/04/23 13:28 1,2,4-Trimethylbenzene ug/L ND 0.50 04/04/23 13:28 1,2-Dibromo-3-chloropropane ug/L ND 1.0 04/04/23 13:28 1,2-Dibromoethane (EDB)ug/L ND 0.50 04/04/23 13:28 1,2-Dichlorobenzene ug/L ND 0.50 04/04/23 13:28 1,2-Dichloroethane ug/L ND 0.50 04/04/23 13:28 1,2-Dichloropropane ug/L ND 0.50 04/04/23 13:28 1,3,5-Trimethylbenzene ug/L ND 0.50 04/04/23 13:28 1,3-Dichlorobenzene ug/L ND 0.50 04/04/23 13:28 1,3-Dichloropropane ug/L ND 0.50 04/04/23 13:28 1,4-Dichlorobenzene ug/L ND 0.50 04/04/23 13:28 2,2-Dichloropropane ug/L ND 0.50 04/04/23 13:28 2-Chlorotoluene ug/L ND 0.50 04/04/23 13:28 4-Chlorotoluene ug/L ND 0.50 04/04/23 13:28 Benzene ug/L ND 0.50 04/04/23 13:28 Bromobenzene ug/L ND 0.50 04/04/23 13:28 Bromochloromethane ug/L ND 0.50 04/04/23 13:28 Bromodichloromethane ug/L ND 0.50 04/04/23 13:28 Bromoform ug/L ND 0.50 04/04/23 13:28 Bromomethane ug/L ND 5.0 04/04/23 13:28 Carbon tetrachloride ug/L ND 0.50 04/04/23 13:28 Chlorobenzene ug/L ND 0.50 04/04/23 13:28 Chloroethane ug/L ND 1.0 04/04/23 13:28 Chloroform ug/L ND 0.50 04/04/23 13:28 Chloromethane ug/L ND 1.0 04/04/23 13:28 cis-1,2-Dichloroethene ug/L ND 0.50 04/04/23 13:28 cis-1,3-Dichloropropene ug/L ND 0.50 04/04/23 13:28 Dibromochloromethane ug/L ND 0.50 04/04/23 13:28 Dibromomethane ug/L ND 0.50 04/04/23 13:28 Dichlorodifluoromethane ug/L ND 0.50 04/04/23 13:28 Diisopropyl ether ug/L ND 0.50 04/04/23 13:28 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 38 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3975206 Associated Lab Samples:92659969003, 92659969008, 92659969016, 92659969017 Matrix:Water Analyzed Ethylbenzene ug/L ND 0.50 04/04/23 13:28 Hexachloro-1,3-butadiene ug/L ND 2.0 04/04/23 13:28 Isopropylbenzene (Cumene)ug/L ND 0.50 04/04/23 13:28 m&p-Xylene ug/L ND 1.0 04/04/23 13:28 Methyl-tert-butyl ether ug/L ND 0.50 04/04/23 13:28 Methylene Chloride ug/L ND 2.0 04/04/23 13:28 n-Butylbenzene ug/L ND 0.50 04/04/23 13:28 n-Propylbenzene ug/L ND 0.50 04/04/23 13:28 Naphthalene ug/L ND 2.0 04/04/23 13:28 o-Xylene ug/L ND 0.50 04/04/23 13:28 sec-Butylbenzene ug/L ND 0.50 04/04/23 13:28 Styrene ug/L ND 0.50 04/04/23 13:28 tert-Butylbenzene ug/L ND 0.50 04/04/23 13:28 Tetrachloroethene ug/L ND 0.50 04/04/23 13:28 Toluene ug/L ND 0.50 04/04/23 13:28 trans-1,2-Dichloroethene ug/L ND 0.50 04/04/23 13:28 trans-1,3-Dichloropropene ug/L ND 0.50 04/04/23 13:28 Trichloroethene ug/L ND 0.50 04/04/23 13:28 Trichlorofluoromethane ug/L ND 1.0 04/04/23 13:28 Vinyl chloride ug/L ND 1.0 04/04/23 13:28 1,2-Dichloroethane-d4 (S)%93 70-130 04/04/23 13:28 4-Bromofluorobenzene (S)%100 70-130 04/04/23 13:28 Toluene-d8 (S)%102 70-130 04/04/23 13:28 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3975207LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 21.120 106 60-140 1,1,1-Trichloroethane ug/L 20.920 105 60-140 1,1,2,2-Tetrachloroethane ug/L 20.220 101 60-140 1,1,2-Trichloroethane ug/L 20.420 102 60-140 1,1-Dichloroethane ug/L 20.120 100 60-140 1,1-Dichloroethene ug/L 21.820 109 60-140 1,1-Dichloropropene ug/L 22.220 111 60-140 1,2,3-Trichlorobenzene ug/L 19.920 100 60-140 1,2,3-Trichloropropane ug/L 19.620 98 60-140 1,2,4-Trichlorobenzene ug/L 20.120 101 60-140 1,2,4-Trimethylbenzene ug/L 21.220 106 60-140 1,2-Dibromo-3-chloropropane ug/L 17.120 85 60-140 1,2-Dibromoethane (EDB)ug/L 21.120 105 60-140 1,2-Dichlorobenzene ug/L 20.720 103 60-140 1,2-Dichloroethane ug/L 20.020 100 60-140 1,2-Dichloropropane ug/L 20.820 104 60-140 1,3,5-Trimethylbenzene ug/L 21.020 105 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 39 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3975207LABORATORY CONTROL SAMPLE: LCSSpike 1,3-Dichlorobenzene ug/L 21.020 105 60-140 1,3-Dichloropropane ug/L 20.120 101 60-140 1,4-Dichlorobenzene ug/L 20.520 103 60-140 2,2-Dichloropropane ug/L 20.620 103 60-140 2-Chlorotoluene ug/L 20.220 101 60-140 4-Chlorotoluene ug/L 21.020 105 60-140 Benzene ug/L 20.820 104 60-140 Bromobenzene ug/L 19.120 96 60-140 Bromochloromethane ug/L 20.520 102 60-140 Bromodichloromethane ug/L 19.720 99 60-140 Bromoform ug/L 19.220 96 60-140 Bromomethane ug/L 17.220 86 60-140 Carbon tetrachloride ug/L 20.720 104 60-140 Chlorobenzene ug/L 20.920 104 60-140 Chloroethane ug/L 20.520 102 60-140 Chloroform ug/L 19.120 96 60-140 Chloromethane ug/L 21.720 108 60-140 cis-1,2-Dichloroethene ug/L 20.320 102 60-140 cis-1,3-Dichloropropene ug/L 19.920 99 60-140 Dibromochloromethane ug/L 20.220 101 60-140 Dibromomethane ug/L 20.220 101 60-140 Dichlorodifluoromethane ug/L 25.620 128 60-140 Diisopropyl ether ug/L 19.620 98 60-140 Ethylbenzene ug/L 20.820 104 60-140 Hexachloro-1,3-butadiene ug/L 21.220 106 60-140 Isopropylbenzene (Cumene)ug/L 21.620 108 60-140 m&p-Xylene ug/L 41.540 104 60-140 Methyl-tert-butyl ether ug/L 18.520 93 60-140 Methylene Chloride ug/L 21.520 107 60-140 n-Butylbenzene ug/L 21.720 108 60-140 n-Propylbenzene ug/L 20.320 102 60-140 Naphthalene ug/L 20.220 101 60-140 o-Xylene ug/L 20.620 103 60-140 sec-Butylbenzene ug/L 21.320 107 60-140 Styrene ug/L 21.620 108 60-140 tert-Butylbenzene ug/L 17.120 85 60-140 Tetrachloroethene ug/L 20.620 103 60-140 Toluene ug/L 19.520 98 60-140 trans-1,2-Dichloroethene ug/L 20.620 103 60-140 trans-1,3-Dichloropropene ug/L 19.720 98 60-140 Trichloroethene ug/L 21.520 108 60-140 Trichlorofluoromethane ug/L 20.420 102 60-140 Vinyl chloride ug/L 17.220 86 60-140 1,2-Dichloroethane-d4 (S)%95 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%96 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 40 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3975208MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92659969016 3975209 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 134 60-140132 120ND26.8 26.4 1,1,1-Trichloroethane ug/L 20 119 60-140120 120ND23.8 24.1 1,1,2,2-Tetrachloroethane ug/L 20 127 60-140125 120ND25.4 25.1 1,1,2-Trichloroethane ug/L 20 131 60-140127 320ND26.1 25.4 1,1-Dichloroethane ug/L 20 114 60-140116 220ND22.7 23.2 1,1-Dichloroethene ug/L 20 117 60-140118 120ND23.4 23.5 1,1-Dichloropropene ug/L 20 123 60-140125 220ND24.5 25.0 1,2,3-Trichlorobenzene ug/L 20 117 60-140122 420ND23.3 24.4 1,2,3-Trichloropropane ug/L 20 123 60-140121 120ND24.5 24.3 1,2,4-Trichlorobenzene ug/L 20 118 60-140120 120ND23.7 23.9 1,2,4-Trimethylbenzene ug/L 20 129 60-140127 220ND25.8 25.4 1,2-Dibromo-3-chloropropane ug/L 20 107 60-140111 420ND21.3 22.2 1,2-Dibromoethane (EDB)ug/L 20 124 60-140124 120ND24.7 24.9 1,2-Dichlorobenzene ug/L 20 128 60-140124 320ND25.6 24.8 1,2-Dichloroethane ug/L 20 116 60-140116 020ND23.2 23.3 1,2-Dichloropropane ug/L 20 129 60-140127 120ND25.8 25.5 1,3,5-Trimethylbenzene ug/L 20 131 60-140127 320ND26.2 25.4 1,3-Dichlorobenzene ug/L 20 129 60-140127 120ND25.8 25.5 1,3-Dichloropropane ug/L 20 122 60-140119 220ND24.3 23.9 1,4-Dichlorobenzene ug/L 20 126 60-140124 220ND25.3 24.8 2,2-Dichloropropane ug/L 20 113 60-140114 120ND22.6 22.9 2-Chlorotoluene ug/L 20 123 60-140122 020ND24.5 24.5 4-Chlorotoluene ug/L 20 127 60-140125 120ND25.3 25.1 Benzene ug/L 20 121 60-140120 120ND24.3 24.0 Bromobenzene ug/L 20 119 60-140120 020ND23.8 23.9 Bromochloromethane ug/L 20 119 60-140116 220ND23.8 23.2 Bromodichloromethane ug/L 20 122 60-140120 120ND24.3 24.0 Bromoform ug/L 20 119 60-140117 120ND23.7 23.4 Bromomethane ug/L 20 63 60-14079 2220ND12.7 15.9 Carbon tetrachloride ug/L 20 124 60-140126 220ND24.8 25.2 Chlorobenzene ug/L 20 129 60-140129 020ND25.7 25.8 Chloroethane ug/L 20 112 60-140112 020ND22.5 22.5 Chloroform ug/L 20 117 60-140120 2203.4 26.7 27.3 Chloromethane ug/L 20 98 60-140100 120ND19.6 19.9 cis-1,2-Dichloroethene ug/L 20 119 60-140120 120ND23.7 24.0 cis-1,3-Dichloropropene ug/L 20 119 60-140119 120ND23.9 23.8 Dibromochloromethane ug/L 20 127 60-140125 220ND25.3 24.9 Dibromomethane ug/L 20 124 60-140128 320ND24.8 25.6 Dichlorodifluoromethane ug/L 20 88 60-14090 220ND17.5 17.9 Diisopropyl ether ug/L 20 115 60-140114 220ND23.1 22.7 Ethylbenzene ug/L 20 127 60-140125 220ND25.5 24.9 Hexachloro-1,3-butadiene ug/L 20 130 60-140131 120ND26.0 26.2 Isopropylbenzene (Cumene)ug/L 20 133 60-140132 120ND26.6 26.4 m&p-Xylene ug/L 40 125 60-140124 040ND49.9 49.6 Methyl-tert-butyl ether ug/L 20 99 60-140100 020ND19.9 20.0 Methylene Chloride ug/L 20 166 60-140168 120ND33.2 33.6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 41 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3975208MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92659969016 3975209 MSD Result MSD % Rec RPD MSDMS Spike Conc. n-Butylbenzene ug/L 20 133 60-140132 120ND26.6 26.3 n-Propylbenzene ug/L 20 126 60-140125 120ND25.2 25.0 Naphthalene ug/L 20 113 60-140117 420ND22.6 23.5 o-Xylene ug/L 20 129 60-140126 320ND25.9 25.2 sec-Butylbenzene ug/L 20 132 60-140132 020ND26.5 26.5 Styrene ug/L 20 127 60-140126 120ND25.4 25.3 tert-Butylbenzene ug/L 20 108 60-140108 020ND21.6 21.5 Tetrachloroethene ug/L 20 126 60-140128 120ND25.3 25.6 Toluene ug/L 20 120 60-140120 020ND24.0 24.0 trans-1,2-Dichloroethene ug/L 20 115 60-140118 220ND23.0 23.6 trans-1,3-Dichloropropene ug/L 20 119 60-140118 120ND23.8 23.7 Trichloroethene ug/L 20 131 60-140129 120ND26.1 25.9 Trichlorofluoromethane ug/L 20 114 60-140114 020ND22.8 22.8 Vinyl chloride ug/L 20 82 60-14082 120ND16.5 16.3 1,2-Dichloroethane-d4 (S)%96 70-13099 4-Bromofluorobenzene (S)%98 70-13097 Toluene-d8 (S)%97 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 42 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 765582 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92659969001, 92659969004, 92659969005, 92659969007, 92659969009, 92659969010, 92659969011, 92659969012, 92659969013, 92659969014, 92659969015 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3975240 Associated Lab Samples:92659969001, 92659969004, 92659969005, 92659969007, 92659969009, 92659969010, 92659969011, 92659969012, 92659969013, 92659969014, 92659969015 Matrix:Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 04/04/23 21:47 1,1,1-Trichloroethane ug/L ND 0.50 04/04/23 21:47 1,1,2,2-Tetrachloroethane ug/L ND 0.50 04/04/23 21:47 1,1,2-Trichloroethane ug/L ND 0.50 04/04/23 21:47 1,1-Dichloroethane ug/L ND 0.50 04/04/23 21:47 1,1-Dichloroethene ug/L ND 0.50 04/04/23 21:47 1,1-Dichloropropene ug/L ND 0.50 04/04/23 21:47 1,2,3-Trichlorobenzene ug/L ND 2.0 04/04/23 21:47 1,2,3-Trichloropropane ug/L ND 0.50 04/04/23 21:47 1,2,4-Trichlorobenzene ug/L ND 2.0 04/04/23 21:47 1,2,4-Trimethylbenzene ug/L ND 0.50 04/04/23 21:47 1,2-Dibromo-3-chloropropane ug/L ND 1.0 04/04/23 21:47 1,2-Dibromoethane (EDB)ug/L ND 0.50 04/04/23 21:47 1,2-Dichlorobenzene ug/L ND 0.50 04/04/23 21:47 1,2-Dichloroethane ug/L ND 0.50 04/04/23 21:47 1,2-Dichloropropane ug/L ND 0.50 04/04/23 21:47 1,3,5-Trimethylbenzene ug/L ND 0.50 04/04/23 21:47 1,3-Dichlorobenzene ug/L ND 0.50 04/04/23 21:47 1,3-Dichloropropane ug/L ND 0.50 04/04/23 21:47 1,4-Dichlorobenzene ug/L ND 0.50 04/04/23 21:47 2,2-Dichloropropane ug/L ND 0.50 04/04/23 21:47 2-Chlorotoluene ug/L ND 0.50 04/04/23 21:47 4-Chlorotoluene ug/L ND 0.50 04/04/23 21:47 Benzene ug/L ND 0.50 04/04/23 21:47 Bromobenzene ug/L ND 0.50 04/04/23 21:47 Bromochloromethane ug/L ND 0.50 04/04/23 21:47 Bromodichloromethane ug/L ND 0.50 04/04/23 21:47 Bromoform ug/L ND 0.50 04/04/23 21:47 Bromomethane ug/L ND 5.0 04/04/23 21:47 Carbon tetrachloride ug/L ND 0.50 04/04/23 21:47 Chlorobenzene ug/L ND 0.50 04/04/23 21:47 Chloroethane ug/L ND 1.0 04/04/23 21:47 Chloroform ug/L ND 0.50 04/04/23 21:47 Chloromethane ug/L ND 1.0 04/04/23 21:47 cis-1,2-Dichloroethene ug/L ND 0.50 04/04/23 21:47 cis-1,3-Dichloropropene ug/L ND 0.50 04/04/23 21:47 Dibromochloromethane ug/L ND 0.50 04/04/23 21:47 Dibromomethane ug/L ND 0.50 04/04/23 21:47 Dichlorodifluoromethane ug/L ND 0.50 04/04/23 21:47 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 43 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3975240 Associated Lab Samples:92659969001, 92659969004, 92659969005, 92659969007, 92659969009, 92659969010, 92659969011, 92659969012, 92659969013, 92659969014, 92659969015 Matrix:Water Analyzed Diisopropyl ether ug/L ND 0.50 04/04/23 21:47 Ethylbenzene ug/L ND 0.50 04/04/23 21:47 Hexachloro-1,3-butadiene ug/L ND 2.0 04/04/23 21:47 Isopropylbenzene (Cumene)ug/L ND 0.50 04/04/23 21:47 m&p-Xylene ug/L ND 1.0 04/04/23 21:47 Methyl-tert-butyl ether ug/L ND 0.50 04/04/23 21:47 Methylene Chloride ug/L ND 2.0 04/04/23 21:47 n-Butylbenzene ug/L ND 0.50 04/04/23 21:47 n-Propylbenzene ug/L ND 0.50 04/04/23 21:47 Naphthalene ug/L ND 2.0 04/04/23 21:47 o-Xylene ug/L ND 0.50 04/04/23 21:47 sec-Butylbenzene ug/L ND 0.50 04/04/23 21:47 Styrene ug/L ND 0.50 04/04/23 21:47 tert-Butylbenzene ug/L ND 0.50 04/04/23 21:47 Tetrachloroethene ug/L ND 0.50 04/04/23 21:47 Toluene ug/L ND 0.50 04/04/23 21:47 trans-1,2-Dichloroethene ug/L ND 0.50 04/04/23 21:47 trans-1,3-Dichloropropene ug/L ND 0.50 04/04/23 21:47 Trichloroethene ug/L ND 0.50 04/04/23 21:47 Trichlorofluoromethane ug/L ND 1.0 04/04/23 21:47 Vinyl chloride ug/L ND 1.0 04/04/23 21:47 1,2-Dichloroethane-d4 (S)%91 70-130 04/04/23 21:47 4-Bromofluorobenzene (S)%99 70-130 04/04/23 21:47 Toluene-d8 (S)%104 70-130 04/04/23 21:47 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3975241LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 22.920 114 60-140 1,1,1-Trichloroethane ug/L 22.420 112 60-140 1,1,2,2-Tetrachloroethane ug/L 21.720 109 60-140 1,1,2-Trichloroethane ug/L 22.620 113 60-140 1,1-Dichloroethane ug/L 21.620 108 60-140 1,1-Dichloroethene ug/L 23.220 116 60-140 1,1-Dichloropropene ug/L 24.020 120 60-140 1,2,3-Trichlorobenzene ug/L 21.320 107 60-140 1,2,3-Trichloropropane ug/L 21.120 105 60-140 1,2,4-Trichlorobenzene ug/L 21.820 109 60-140 1,2,4-Trimethylbenzene ug/L 22.820 114 60-140 1,2-Dibromo-3-chloropropane ug/L 18.720 94 60-140 1,2-Dibromoethane (EDB)ug/L 22.020 110 60-140 1,2-Dichlorobenzene ug/L 22.120 110 60-140 1,2-Dichloroethane ug/L 21.420 107 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 44 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3975241LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dichloropropane ug/L 22.820 114 60-140 1,3,5-Trimethylbenzene ug/L 22.820 114 60-140 1,3-Dichlorobenzene ug/L 22.920 114 60-140 1,3-Dichloropropane ug/L 21.220 106 60-140 1,4-Dichlorobenzene ug/L 22.120 111 60-140 2,2-Dichloropropane ug/L 21.120 105 60-140 2-Chlorotoluene ug/L 21.820 109 60-140 4-Chlorotoluene ug/L 22.420 112 60-140 Benzene ug/L 22.720 113 60-140 Bromobenzene ug/L 21.320 107 60-140 Bromochloromethane ug/L 22.420 112 60-140 Bromodichloromethane ug/L 21.520 108 60-140 Bromoform ug/L 20.620 103 60-140 Bromomethane ug/L 17.320 86 60-140 Carbon tetrachloride ug/L 22.620 113 60-140 Chlorobenzene ug/L 22.520 113 60-140 Chloroethane ug/L 21.920 109 60-140 Chloroform ug/L 21.420 107 60-140 Chloromethane ug/L 23.020 115 60-140 cis-1,2-Dichloroethene ug/L 21.720 109 60-140 cis-1,3-Dichloropropene ug/L 21.520 107 60-140 Dibromochloromethane ug/L 21.920 110 60-140 Dibromomethane ug/L 22.720 113 60-140 Dichlorodifluoromethane ug/L 26.920 135 60-140 Diisopropyl ether ug/L 21.520 107 60-140 Ethylbenzene ug/L 22.220 111 60-140 Hexachloro-1,3-butadiene ug/L 21.820 109 60-140 Isopropylbenzene (Cumene)ug/L 23.120 115 60-140 m&p-Xylene ug/L 44.940 112 60-140 Methyl-tert-butyl ether ug/L 20.120 100 60-140 Methylene Chloride ug/L 48.0 C9,L12024060-140 n-Butylbenzene ug/L 22.920 115 60-140 n-Propylbenzene ug/L 21.820 109 60-140 Naphthalene ug/L 21.620 108 60-140 o-Xylene ug/L 22.620 113 60-140 sec-Butylbenzene ug/L 22.920 115 60-140 Styrene ug/L 22.820 114 60-140 tert-Butylbenzene ug/L 18.720 93 60-140 Tetrachloroethene ug/L 22.720 113 60-140 Toluene ug/L 21.620 108 60-140 trans-1,2-Dichloroethene ug/L 22.620 113 60-140 trans-1,3-Dichloropropene ug/L 21.220 106 60-140 Trichloroethene ug/L 23.720 119 60-140 Trichlorofluoromethane ug/L 21.920 110 60-140 Vinyl chloride ug/L 18.420 92 60-140 1,2-Dichloroethane-d4 (S)%99 70-130 4-Bromofluorobenzene (S)%99 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 45 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3975241LABORATORY CONTROL SAMPLE: LCSSpike Toluene-d8 (S)%98 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3975242MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92659969001 3975243 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 147 60-140138 620ND29.3 27.6 1,1,1-Trichloroethane ug/L 20 133 60-140123 820ND26.6 24.5 1,1,2,2-Tetrachloroethane ug/L 20 138 60-140128 720ND27.6 25.6 1,1,2-Trichloroethane ug/L 20 142 60-140132 820ND28.5 26.3 1,1-Dichloroethane ug/L 20 127 60-140117 820ND25.3 23.4 1,1-Dichloroethene ug/L 20 132 60-140121 920ND26.5 24.1 1,1-Dichloropropene ug/L 20 139 60-140126 1020ND27.9 25.1 1,2,3-Trichlorobenzene ug/L 20 133 60-140125 720ND26.6 24.9 1,2,3-Trichloropropane ug/L 20 134 60-140123 820ND26.9 24.7 1,2,4-Trichlorobenzene ug/L 20 129 60-140121 720ND25.9 24.3 1,2,4-Trimethylbenzene ug/L 20 139 60-140132 620ND27.9 26.3 1,2-Dibromo-3-chloropropane ug/L 20 120 60-140109 1020ND24.1 21.8 1,2-Dibromoethane (EDB)ug/L 20 138 60-140129 720ND27.7 25.9 1,2-Dichlorobenzene ug/L 20 138 60-140127 820ND27.6 25.4 1,2-Dichloroethane ug/L 20 131 60-140118 1020ND26.1 23.7 1,2-Dichloropropane ug/L 20 141 60-140130 820ND28.3 26.1 1,3,5-Trimethylbenzene ug/L 20 141 60-140130 820ND28.2 26.0 1,3-Dichlorobenzene ug/L 20 140 60-140129 920ND28.1 25.8 1,3-Dichloropropane ug/L 20 132 60-140121 920ND26.5 24.1 1,4-Dichlorobenzene ug/L 20 137 60-140127 720ND27.3 25.4 2,2-Dichloropropane ug/L 20 128 60-140116 1020ND25.7 23.3 2-Chlorotoluene ug/L 20 133 60-140125 620ND26.7 25.0 4-Chlorotoluene ug/L 20 135 60-140127 620ND27.0 25.5 Benzene ug/L 20 131 60-140124 520ND26.3 24.9 Bromobenzene ug/L 20 130 60-140124 420ND26.0 24.9 Bromochloromethane ug/L 20 131 60-140116 1220ND26.1 23.2 Bromodichloromethane ug/L 20 133 60-140126 620ND26.7 25.1 Bromoform ug/L 20 131 60-140123 620ND26.1 24.6 Bromomethane ug/L 20 89 60-14084 620ND17.7 16.7 Carbon tetrachloride ug/L 20 136 60-140129 520ND27.2 25.8 Chlorobenzene ug/L 20 140 60-140131 720ND28.0 26.2 Chloroethane ug/L 20 124 60-140115 820ND24.9 23.0 Chloroform ug/L 20 131 60-140119 920ND26.1 23.9 Chloromethane ug/L 20 109 60-140101 720ND21.8 20.3 cis-1,2-Dichloroethene ug/L 20 132 60-140120 1020ND26.4 23.9 cis-1,3-Dichloropropene ug/L 20 132 60-140120 1020ND26.4 23.9 Dibromochloromethane ug/L 20 137 60-140130 520ND27.4 26.0 Dibromomethane ug/L 20 139 60-140126 1020ND27.8 25.3 Dichlorodifluoromethane ug/L 20 101 60-14092 920ND20.1 18.4 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 46 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3975242MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92659969001 3975243 MSD Result MSD % Rec RPD MSDMS Spike Conc. Diisopropyl ether ug/L 20 127 60-140116 920ND25.5 23.2 Ethylbenzene ug/L 20 138 60-140130 520ND27.5 26.1 Hexachloro-1,3-butadiene ug/L 20 149 60-140136 820ND29.7 27.3 Isopropylbenzene (Cumene)ug/L 20 146 60-140138 620ND29.2 27.5 m&p-Xylene ug/L 40 138 60-140131 540ND55.3 52.4 Methyl-tert-butyl ether ug/L 20 111 60-14099 1120ND22.6 20.1 Methylene Chloride ug/L C9,M02018660-140167 1120ND37.2 33.5 n-Butylbenzene ug/L 20 146 60-140133 920ND29.2 26.7 n-Propylbenzene ug/L 20 137 60-140126 820ND27.3 25.2 Naphthalene ug/L 20 130 60-140120 820ND25.9 23.9 o-Xylene ug/L 20 140 60-140133 620ND28.1 26.5 sec-Butylbenzene ug/L 20 147 60-140135 820ND29.3 27.0 Styrene ug/L 20 141 60-140133 620ND28.3 26.6 tert-Butylbenzene ug/L 20 118 60-140110 720ND23.6 22.0 Tetrachloroethene ug/L 20 139 60-140134 420ND27.7 26.7 Toluene ug/L 20 133 60-140124 720ND26.6 24.9 trans-1,2-Dichloroethene ug/L 20 131 60-140120 920ND26.1 24.0 trans-1,3-Dichloropropene ug/L 20 131 60-140122 820ND26.3 24.3 Trichloroethene ug/L 20 142 60-140134 620ND28.4 26.8 Trichlorofluoromethane ug/L 20 126 60-140117 820ND25.2 23.4 Vinyl chloride ug/L 20 92 60-14085 820ND18.4 17.1 1,2-Dichloroethane-d4 (S)%94 70-13098 4-Bromofluorobenzene (S)%98 70-130100 Toluene-d8 (S)%96 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 47 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 766100 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92659969006 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3977658 Associated Lab Samples:92659969006 Matrix:Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 04/08/23 00:10 1,1,1-Trichloroethane ug/L ND 0.50 04/08/23 00:10 1,1,2,2-Tetrachloroethane ug/L ND 0.50 04/08/23 00:10 1,1,2-Trichloroethane ug/L ND 0.50 04/08/23 00:10 1,1-Dichloroethane ug/L ND 0.50 04/08/23 00:10 1,1-Dichloroethene ug/L ND 0.50 04/08/23 00:10 1,1-Dichloropropene ug/L ND 0.50 04/08/23 00:10 1,2,3-Trichlorobenzene ug/L ND 2.0 04/08/23 00:10 1,2,3-Trichloropropane ug/L ND 0.50 04/08/23 00:10 1,2,4-Trichlorobenzene ug/L ND 2.0 04/08/23 00:10 1,2,4-Trimethylbenzene ug/L ND 0.50 04/08/23 00:10 1,2-Dibromo-3-chloropropane ug/L ND 1.0 04/08/23 00:10 1,2-Dibromoethane (EDB)ug/L ND 0.50 04/08/23 00:10 1,2-Dichlorobenzene ug/L ND 0.50 04/08/23 00:10 1,2-Dichloroethane ug/L ND 0.50 04/08/23 00:10 1,2-Dichloropropane ug/L ND 0.50 04/08/23 00:10 1,3,5-Trimethylbenzene ug/L ND 0.50 04/08/23 00:10 1,3-Dichlorobenzene ug/L ND 0.50 04/08/23 00:10 1,3-Dichloropropane ug/L ND 0.50 04/08/23 00:10 1,4-Dichlorobenzene ug/L ND 0.50 04/08/23 00:10 2,2-Dichloropropane ug/L ND 0.50 04/08/23 00:10 2-Chlorotoluene ug/L ND 0.50 04/08/23 00:10 4-Chlorotoluene ug/L ND 0.50 04/08/23 00:10 Benzene ug/L ND 0.50 04/08/23 00:10 Bromobenzene ug/L ND 0.50 04/08/23 00:10 Bromochloromethane ug/L ND 0.50 04/08/23 00:10 Bromodichloromethane ug/L ND 0.50 04/08/23 00:10 Bromoform ug/L ND 0.50 04/08/23 00:10 Bromomethane ug/L ND 5.0 04/08/23 00:10 Carbon tetrachloride ug/L ND 0.50 04/08/23 00:10 Chlorobenzene ug/L ND 0.50 04/08/23 00:10 Chloroethane ug/L ND 1.0 04/08/23 00:10 Chloroform ug/L ND 0.50 04/08/23 00:10 Chloromethane ug/L ND 1.0 04/08/23 00:10 cis-1,2-Dichloroethene ug/L ND 0.50 04/08/23 00:10 cis-1,3-Dichloropropene ug/L ND 0.50 04/08/23 00:10 Dibromochloromethane ug/L ND 0.50 04/08/23 00:10 Dibromomethane ug/L ND 0.50 04/08/23 00:10 Dichlorodifluoromethane ug/L ND 0.50 04/08/23 00:10 Diisopropyl ether ug/L ND 0.50 04/08/23 00:10 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 48 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3977658 Associated Lab Samples:92659969006 Matrix:Water Analyzed Ethylbenzene ug/L ND 0.50 04/08/23 00:10 Hexachloro-1,3-butadiene ug/L ND 2.0 04/08/23 00:10 Isopropylbenzene (Cumene)ug/L ND 0.50 04/08/23 00:10 m&p-Xylene ug/L ND 1.0 04/08/23 00:10 Methyl-tert-butyl ether ug/L ND 0.50 04/08/23 00:10 Methylene Chloride ug/L ND 2.0 04/08/23 00:10 n-Butylbenzene ug/L ND 0.50 04/08/23 00:10 n-Propylbenzene ug/L ND 0.50 04/08/23 00:10 Naphthalene ug/L ND 2.0 04/08/23 00:10 o-Xylene ug/L ND 0.50 04/08/23 00:10 sec-Butylbenzene ug/L ND 0.50 04/08/23 00:10 Styrene ug/L ND 0.50 04/08/23 00:10 tert-Butylbenzene ug/L ND 0.50 04/08/23 00:10 Tetrachloroethene ug/L ND 0.50 04/08/23 00:10 Toluene ug/L ND 0.50 04/08/23 00:10 trans-1,2-Dichloroethene ug/L ND 0.50 04/08/23 00:10 trans-1,3-Dichloropropene ug/L ND 0.50 04/08/23 00:10 Trichloroethene ug/L ND 0.50 04/08/23 00:10 Trichlorofluoromethane ug/L ND 1.0 04/08/23 00:10 Vinyl chloride ug/L ND 1.0 04/08/23 00:10 1,2-Dichloroethane-d4 (S)%92 70-130 04/08/23 00:10 4-Bromofluorobenzene (S)%99 70-130 04/08/23 00:10 Toluene-d8 (S)%101 70-130 04/08/23 00:10 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3977659LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 21.520 108 60-140 1,1,1-Trichloroethane ug/L 20.720 103 60-140 1,1,2,2-Tetrachloroethane ug/L 20.420 102 60-140 1,1,2-Trichloroethane ug/L 22.020 110 60-140 1,1-Dichloroethane ug/L 20.620 103 60-140 1,1-Dichloroethene ug/L 22.420 112 60-140 1,1-Dichloropropene ug/L 22.220 111 60-140 1,2,3-Trichlorobenzene ug/L 20.320 102 60-140 1,2,3-Trichloropropane ug/L 19.720 98 60-140 1,2,4-Trichlorobenzene ug/L 20.320 101 60-140 1,2,4-Trimethylbenzene ug/L 20.620 103 60-140 1,2-Dibromo-3-chloropropane ug/L 18.420 92 60-140 1,2-Dibromoethane (EDB)ug/L 20.920 104 60-140 1,2-Dichlorobenzene ug/L 20.720 104 60-140 1,2-Dichloroethane ug/L 21.120 105 60-140 1,2-Dichloropropane ug/L 22.520 113 60-140 1,3,5-Trimethylbenzene ug/L 20.520 102 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 49 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3977659LABORATORY CONTROL SAMPLE: LCSSpike 1,3-Dichlorobenzene ug/L 21.120 106 60-140 1,3-Dichloropropane ug/L 19.920 99 60-140 1,4-Dichlorobenzene ug/L 20.420 102 60-140 2,2-Dichloropropane ug/L 19.520 98 60-140 2-Chlorotoluene ug/L 20.120 100 60-140 4-Chlorotoluene ug/L 20.320 101 60-140 Benzene ug/L 21.520 107 60-140 Bromobenzene ug/L 20.120 100 60-140 Bromochloromethane ug/L 20.720 103 60-140 Bromodichloromethane ug/L 20.520 103 60-140 Bromoform ug/L 19.720 99 60-140 Bromomethane ug/L 16.220 81 60-140 Carbon tetrachloride ug/L 22.620 113 60-140 Chlorobenzene ug/L 21.220 106 60-140 Chloroethane ug/L 20.620 103 60-140 Chloroform ug/L 19.720 99 60-140 Chloromethane ug/L 24.620 123 60-140 cis-1,2-Dichloroethene ug/L 21.220 106 60-140 cis-1,3-Dichloropropene ug/L 20.520 102 60-140 Dibromochloromethane ug/L 20.520 103 60-140 Dibromomethane ug/L 22.220 111 60-140 Dichlorodifluoromethane ug/L 28.6 L12014360-140 Diisopropyl ether ug/L 20.220 101 60-140 Ethylbenzene ug/L 20.820 104 60-140 Hexachloro-1,3-butadiene ug/L 20.720 103 60-140 Isopropylbenzene (Cumene)ug/L 21.120 106 60-140 m&p-Xylene ug/L 41.240 103 60-140 Methyl-tert-butyl ether ug/L 18.320 91 60-140 Methylene Chloride ug/L 22.120 111 60-140 n-Butylbenzene ug/L 20.020 100 60-140 n-Propylbenzene ug/L 19.720 98 60-140 Naphthalene ug/L 19.820 99 60-140 o-Xylene ug/L 20.620 103 60-140 sec-Butylbenzene ug/L 20.120 101 60-140 Styrene ug/L 21.120 105 60-140 tert-Butylbenzene ug/L 17.020 85 60-140 Tetrachloroethene ug/L 21.820 109 60-140 Toluene ug/L 20.620 103 60-140 trans-1,2-Dichloroethene ug/L 21.920 110 60-140 trans-1,3-Dichloropropene ug/L 19.820 99 60-140 Trichloroethene ug/L 23.220 116 60-140 Trichlorofluoromethane ug/L 20.020 100 60-140 Vinyl chloride ug/L 18.620 93 60-140 1,2-Dichloroethane-d4 (S)%96 70-130 4-Bromofluorobenzene (S)%100 70-130 Toluene-d8 (S)%97 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 50 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3977660MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92660072005 3977661 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L M12018960-140192 120ND37.9 38.4 1,1,1-Trichloroethane ug/L M12019060-140195 220ND38.0 39.0 1,1,2,2-Tetrachloroethane ug/L M12020060-140203 120ND40.1 40.5 1,1,2-Trichloroethane ug/L M12020260-140212 520ND40.5 42.4 1,1-Dichloroethane ug/L M12020760-140198 420ND41.4 39.6 1,1-Dichloroethene ug/L M12022360-140213 520ND44.7 42.5 1,1-Dichloropropene ug/L M12019460-140210 820ND38.8 42.0 1,2,3-Trichlorobenzene ug/L M12018960-140203 720ND37.9 40.5 1,2,3-Trichloropropane ug/L M12019660-140196 020ND39.1 39.3 1,2,4-Trichlorobenzene ug/L M12017860-140197 1020ND35.5 39.4 1,2,4-Trimethylbenzene ug/L M12018960-140214 52050.8 88.6 93.6 1,2-Dibromo-3-chloropropane ug/L M12016560-140181 920ND32.9 36.2 1,2-Dibromoethane (EDB)ug/L M12019760-140201 220ND39.5 40.2 1,2-Dichlorobenzene ug/L M12020560-140209 220ND40.9 41.8 1,2-Dichloroethane ug/L M12020660-140203 120ND41.3 40.7 1,2-Dichloropropane ug/L M12021560-140210 220ND43.0 42.1 1,3,5-Trimethylbenzene ug/L M12018860-140200 52012.1 49.6 52.0 1,3-Dichlorobenzene ug/L M12020460-140204 020ND40.9 40.7 1,3-Dichloropropane ug/L M12018760-140194 420ND37.4 38.8 1,4-Dichlorobenzene ug/L M12021160-140207 220ND42.2 41.5 2,2-Dichloropropane ug/L M12019460-140189 220ND38.7 37.9 2-Chlorotoluene ug/L M12021160-140197 720ND42.3 39.3 4-Chlorotoluene ug/L M12018960-140201 620ND37.8 40.2 Benzene ug/L M12058860-140543 120110012201210 Bromobenzene ug/L M12019060-140197 320ND38.1 39.3 Bromochloromethane ug/L M12020460-140207 220ND40.7 41.4 Bromodichloromethane ug/L M12018760-140191 220ND37.3 38.1 Bromoform ug/L M12017860-140180 120ND35.5 35.9 Bromomethane ug/L M12014260-14015120ND28.5J 30.2J Carbon tetrachloride ug/L M12020060-140205 320ND40.0 41.1 Chlorobenzene ug/L M12020660-140208 120ND41.3 41.7 Chloroethane ug/L M12020660-140197 520ND41.2 39.3 Chloroform ug/L M12020060-140196 220ND40.0 39.3 Chloromethane ug/L M12026560-140258 320ND53.0 51.6 cis-1,2-Dichloroethene ug/L M12020260-140206 220ND40.5 41.3 cis-1,3-Dichloropropene ug/L M12018160-140187 420ND36.1 37.4 Dibromochloromethane ug/L M12018460-140190 320ND36.9 38.0 Dibromomethane ug/L M12022060-140221 120ND44.0 44.3 Dichlorodifluoromethane ug/L M02028060-140260 720ND56.0 52.0 Diisopropyl ether ug/L M12019560-140200 220ND39.0 40.0 Ethylbenzene ug/L M12022060-140226 020253297298 Hexachloro-1,3-butadiene ug/L M12020460-140213 420ND40.8 42.6 Isopropylbenzene (Cumene)ug/L M12020360-140202 1208.6 49.3 49.0 m&p-Xylene ug/L M14023960-140237 040145240240 Methyl-tert-butyl ether ug/L M12016960-140171 120ND33.9 34.3 Methylene Chloride ug/L M120-177 60-140-214 620157122114 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 51 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3977660MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92660072005 3977661 MSD Result MSD % Rec RPD MSDMS Spike Conc. n-Butylbenzene ug/L M12019060-140198 420ND38.1 39.6 n-Propylbenzene ug/L M12018260-140192 32021.7 58.1 60.1 Naphthalene ug/L M1209960-140176 152079.0 98.8 114 o-Xylene ug/L M12020460-140206 12036.6 77.3 77.7 sec-Butylbenzene ug/L M12019460-140202 420ND38.8 40.4 Styrene ug/L M12021760-140211 220ND43.3 42.3 tert-Butylbenzene ug/L M12015360-140168 920ND30.6 33.6 Tetrachloroethene ug/L M12021060-140210 020ND42.0 41.9 Toluene ug/L M12080960-140783 120787949944 trans-1,2-Dichloroethene ug/L M12020760-140202 320ND41.4 40.3 trans-1,3-Dichloropropene ug/L M12017460-140178 220ND34.9 35.7 Trichloroethene ug/L M12021460-140222 420ND42.7 44.4 Trichlorofluoromethane ug/L M12019460-140190 220ND38.8 38.1 Vinyl chloride ug/L M12018560-140177 520ND37.0 35.3 1,2-Dichloroethane-d4 (S)%96 70-13096 4-Bromofluorobenzene (S)%100 70-130100 Toluene-d8 (S)%99 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 52 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 767056 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92659969002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3982718 Associated Lab Samples:92659969002 Matrix:Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 04/10/23 09:47 1,1,1-Trichloroethane ug/L ND 0.50 04/10/23 09:47 1,1,2,2-Tetrachloroethane ug/L ND 0.50 04/10/23 09:47 1,1,2-Trichloroethane ug/L ND 0.50 04/10/23 09:47 1,1-Dichloroethane ug/L ND 0.50 04/10/23 09:47 1,1-Dichloroethene ug/L ND 0.50 04/10/23 09:47 1,1-Dichloropropene ug/L ND 0.50 04/10/23 09:47 1,2,3-Trichlorobenzene ug/L ND 2.0 04/10/23 09:47 1,2,3-Trichloropropane ug/L ND 0.50 04/10/23 09:47 1,2,4-Trichlorobenzene ug/L ND 2.0 04/10/23 09:47 1,2,4-Trimethylbenzene ug/L ND 0.50 04/10/23 09:47 1,2-Dibromo-3-chloropropane ug/L ND 1.0 04/10/23 09:47 1,2-Dibromoethane (EDB)ug/L ND 0.50 04/10/23 09:47 1,2-Dichlorobenzene ug/L ND 0.50 04/10/23 09:47 1,2-Dichloroethane ug/L ND 0.50 04/10/23 09:47 1,2-Dichloropropane ug/L ND 0.50 04/10/23 09:47 1,3,5-Trimethylbenzene ug/L ND 0.50 04/10/23 09:47 1,3-Dichlorobenzene ug/L ND 0.50 04/10/23 09:47 1,3-Dichloropropane ug/L ND 0.50 04/10/23 09:47 1,4-Dichlorobenzene ug/L ND 0.50 04/10/23 09:47 2,2-Dichloropropane ug/L ND 0.50 04/10/23 09:47 2-Chlorotoluene ug/L ND 0.50 04/10/23 09:47 4-Chlorotoluene ug/L ND 0.50 04/10/23 09:47 Benzene ug/L ND 0.50 04/10/23 09:47 Bromobenzene ug/L ND 0.50 04/10/23 09:47 Bromochloromethane ug/L ND 0.50 04/10/23 09:47 Bromodichloromethane ug/L ND 0.50 04/10/23 09:47 Bromoform ug/L ND 0.50 04/10/23 09:47 Bromomethane ug/L ND 5.0 04/10/23 09:47 Carbon tetrachloride ug/L ND 0.50 04/10/23 09:47 Chlorobenzene ug/L ND 0.50 04/10/23 09:47 Chloroethane ug/L ND 1.0 04/10/23 09:47 Chloroform ug/L ND 0.50 04/10/23 09:47 Chloromethane ug/L ND 1.0 04/10/23 09:47 cis-1,2-Dichloroethene ug/L ND 0.50 04/10/23 09:47 cis-1,3-Dichloropropene ug/L ND 0.50 04/10/23 09:47 Dibromochloromethane ug/L ND 0.50 04/10/23 09:47 Dibromomethane ug/L ND 0.50 04/10/23 09:47 Dichlorodifluoromethane ug/L ND 0.50 04/10/23 09:47 Diisopropyl ether ug/L ND 0.50 04/10/23 09:47 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 53 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3982718 Associated Lab Samples:92659969002 Matrix:Water Analyzed Ethylbenzene ug/L ND 0.50 04/10/23 09:47 Hexachloro-1,3-butadiene ug/L ND 2.0 04/10/23 09:47 Isopropylbenzene (Cumene)ug/L ND 0.50 04/10/23 09:47 m&p-Xylene ug/L ND 1.0 04/10/23 09:47 Methyl-tert-butyl ether ug/L ND 0.50 04/10/23 09:47 Methylene Chloride ug/L ND 2.0 04/10/23 09:47 n-Butylbenzene ug/L ND 0.50 04/10/23 09:47 n-Propylbenzene ug/L ND 0.50 04/10/23 09:47 Naphthalene ug/L ND 2.0 04/10/23 09:47 o-Xylene ug/L ND 0.50 04/10/23 09:47 sec-Butylbenzene ug/L ND 0.50 04/10/23 09:47 Styrene ug/L ND 0.50 04/10/23 09:47 tert-Butylbenzene ug/L ND 0.50 04/10/23 09:47 Tetrachloroethene ug/L ND 0.50 04/10/23 09:47 Toluene ug/L ND 0.50 04/10/23 09:47 trans-1,2-Dichloroethene ug/L ND 0.50 04/10/23 09:47 trans-1,3-Dichloropropene ug/L ND 0.50 04/10/23 09:47 Trichloroethene ug/L ND 0.50 04/10/23 09:47 Trichlorofluoromethane ug/L ND 1.0 04/10/23 09:47 Vinyl chloride ug/L ND 1.0 04/10/23 09:47 1,2-Dichloroethane-d4 (S)%93 70-130 04/10/23 09:47 4-Bromofluorobenzene (S)%99 70-130 04/10/23 09:47 Toluene-d8 (S)%101 70-130 04/10/23 09:47 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3982719LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 22.720 113 60-140 1,1,1-Trichloroethane ug/L 21.420 107 60-140 1,1,2,2-Tetrachloroethane ug/L 20.220 101 60-140 1,1,2-Trichloroethane ug/L 21.620 108 60-140 1,1-Dichloroethane ug/L 20.620 103 60-140 1,1-Dichloroethene ug/L 23.220 116 60-140 1,1-Dichloropropene ug/L 22.120 110 60-140 1,2,3-Trichlorobenzene ug/L 21.220 106 60-140 1,2,3-Trichloropropane ug/L 19.420 97 60-140 1,2,4-Trichlorobenzene ug/L 21.020 105 60-140 1,2,4-Trimethylbenzene ug/L 21.420 107 60-140 1,2-Dibromo-3-chloropropane ug/L 18.620 93 60-140 1,2-Dibromoethane (EDB)ug/L 21.020 105 60-140 1,2-Dichlorobenzene ug/L 21.020 105 60-140 1,2-Dichloroethane ug/L 21.020 105 60-140 1,2-Dichloropropane ug/L 22.220 111 60-140 1,3,5-Trimethylbenzene ug/L 21.320 106 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 54 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3982719LABORATORY CONTROL SAMPLE: LCSSpike 1,3-Dichlorobenzene ug/L 21.320 107 60-140 1,3-Dichloropropane ug/L 20.020 100 60-140 1,4-Dichlorobenzene ug/L 20.920 105 60-140 2,2-Dichloropropane ug/L 21.320 107 60-140 2-Chlorotoluene ug/L 20.320 101 60-140 4-Chlorotoluene ug/L 21.020 105 60-140 Benzene ug/L 21.520 107 60-140 Bromobenzene ug/L 20.120 101 60-140 Bromochloromethane ug/L 20.520 102 60-140 Bromodichloromethane ug/L 21.220 106 60-140 Bromoform ug/L 20.920 105 60-140 Bromomethane ug/L 15.020 75 60-140 Carbon tetrachloride ug/L 23.020 115 60-140 Chlorobenzene ug/L 21.520 107 60-140 Chloroethane ug/L 20.320 101 60-140 Chloroform ug/L 19.920 100 60-140 Chloromethane ug/L 23.920 119 60-140 cis-1,2-Dichloroethene ug/L 21.120 105 60-140 cis-1,3-Dichloropropene ug/L 21.420 107 60-140 Dibromochloromethane ug/L 21.120 106 60-140 Dibromomethane ug/L 22.220 111 60-140 Dichlorodifluoromethane ug/L 29.2 L12014660-140 Diisopropyl ether ug/L 21.520 108 60-140 Ethylbenzene ug/L 21.120 105 60-140 Hexachloro-1,3-butadiene ug/L 22.420 112 60-140 Isopropylbenzene (Cumene)ug/L 21.920 109 60-140 m&p-Xylene ug/L 42.240 105 60-140 Methyl-tert-butyl ether ug/L 18.820 94 60-140 Methylene Chloride ug/L 23.120 115 60-140 n-Butylbenzene ug/L 21.320 107 60-140 n-Propylbenzene ug/L 20.320 102 60-140 Naphthalene ug/L 20.520 103 60-140 o-Xylene ug/L 21.420 107 60-140 sec-Butylbenzene ug/L 21.120 105 60-140 Styrene ug/L 21.720 108 60-140 tert-Butylbenzene ug/L 17.520 87 60-140 Tetrachloroethene ug/L 23.320 117 60-140 Toluene ug/L 20.620 103 60-140 trans-1,2-Dichloroethene ug/L 22.220 111 60-140 trans-1,3-Dichloropropene ug/L 20.920 104 60-140 Trichloroethene ug/L 23.420 117 60-140 Trichlorofluoromethane ug/L 20.520 102 60-140 Vinyl chloride ug/L 18.420 92 60-140 1,2-Dichloroethane-d4 (S)%98 70-130 4-Bromofluorobenzene (S)%100 70-130 Toluene-d8 (S)%96 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 55 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3982720MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92659958005 3982721 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 108 60-140104 420ND21.6 20.9 1,1,1-Trichloroethane ug/L 20 105 60-140100 520ND21.1 20.0 1,1,2,2-Tetrachloroethane ug/L 20 110 60-140108 120ND21.9 21.6 1,1,2-Trichloroethane ug/L 20 112 60-140106 520ND22.3 21.2 1,1-Dichloroethane ug/L 20 109 60-140107 220ND22.2 21.8 1,1-Dichloroethene ug/L 20 122 60-140121 120ND24.5 24.1 1,1-Dichloropropene ug/L 20 105 60-140102 320ND21.0 20.3 1,2,3-Trichlorobenzene ug/L M12014560-140118 2120ND28.9 23.5 1,2,3-Trichloropropane ug/L 20 118 60-140115 220ND23.7 23.1 1,2,4-Trichlorobenzene ug/L 20 137 60-140116 1620ND27.3 23.2 1,2,4-Trimethylbenzene ug/L M120-351 60-140-352 020383313313 1,2-Dibromo-3-chloropropane ug/L 20 105 60-14092 1320ND21.0 18.4 1,2-Dibromoethane (EDB)ug/L 20 104 60-140107 320ND20.8 21.5 1,2-Dichlorobenzene ug/L 20 111 60-140113 120ND22.2 22.5 1,2-Dichloroethane ug/L 20 108 60-140109 120ND21.6 21.9 1,2-Dichloropropane ug/L 20 111 60-140108 220ND22.2 21.7 1,3,5-Trimethylbenzene ug/L M120-24 60-140-24 020105100100 1,3-Dichlorobenzene ug/L 20 116 60-140108 720ND23.2 21.6 1,3-Dichloropropane ug/L 20 96 60-14098 220ND19.3 19.6 1,4-Dichlorobenzene ug/L 20 114 60-140110 420ND22.8 22.0 2,2-Dichloropropane ug/L 20 108 60-140106 120ND21.5 21.3 2-Chlorotoluene ug/L 20 98 60-14092 620ND19.7 18.4 4-Chlorotoluene ug/L 20 98 60-140102 420ND19.6 20.5 Benzene ug/L 20 93 60-14092 02014.3 32.8 32.7 Bromobenzene ug/L 20 105 60-140104 220ND21.1 20.7 Bromochloromethane ug/L 20 108 60-140111 320ND21.6 22.2 Bromodichloromethane ug/L 20 103 60-140104 120ND20.7 20.9 Bromoform ug/L 20 97 60-14097 020ND19.4 19.3 Bromomethane ug/L 20 86 60-1408720ND17.2J 17.4J Carbon tetrachloride ug/L 20 113 60-140112 120ND22.6 22.4 Chlorobenzene ug/L 20 109 60-140110 220ND21.7 22.1 Chloroethane ug/L 20 107 60-140107 020ND21.5 21.4 Chloroform ug/L 20 101 60-140103 220ND20.1 20.5 Chloromethane ug/L M12014160-140139 220ND28.2 27.7 cis-1,2-Dichloroethene ug/L 20 114 60-140113 120ND22.8 22.6 cis-1,3-Dichloropropene ug/L 20 99 60-14095 520ND19.9 19.0 Dibromochloromethane ug/L 20 102 60-14097 520ND20.3 19.4 Dibromomethane ug/L 20 114 60-140116 220ND22.8 23.2 Dichlorodifluoromethane ug/L M02015860-140155 220ND31.5 31.1 Diisopropyl ether ug/L 20 110 60-140111 1204.0 26.1 26.2 Ethylbenzene ug/L M1203460-14029 12063.5 70.3 69.3 Hexachloro-1,3-butadiene ug/L M12015060-140131 1420ND30.0 26.2 Isopropylbenzene (Cumene)ug/L 20 89 60-14088 12024.3 42.0 41.8 m&p-Xylene ug/L 40 67 60-14066 04068.0 94.7 94.4 Methyl-tert-butyl ether ug/L 20 105 60-140104 120ND20.9 20.7 Methylene Chloride ug/L M12023260-140211 72010.9 57.3 53.1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 56 of 64 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92659969 FOUR POINT 76 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3982720MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92659958005 3982721 MSD Result MSD % Rec RPD MSDMS Spike Conc. n-Butylbenzene ug/L M12022960-140173 2820ND45.7 34.6 n-Propylbenzene ug/L M12032860-140317 320ND65.6 63.4 Naphthalene ug/L 20 99 60-14077 112024.4 44.2 39.7 o-Xylene ug/L 20 112 60-140109 2208.1 30.5 29.9 sec-Butylbenzene ug/L M12015660-140144 820ND31.2 28.8 Styrene ug/L 20 108 60-140104 420ND21.6 20.8 tert-Butylbenzene ug/L 20 97 60-14090 820ND19.3 17.9 Tetrachloroethene ug/L 20 111 60-140113 120ND22.3 22.6 Toluene ug/L 20 104 60-140104 0201.6J 22.4 22.3 trans-1,2-Dichloroethene ug/L 20 114 60-140115 020ND22.9 23.0 trans-1,3-Dichloropropene ug/L 20 98 60-140100 120ND19.7 19.9 Trichloroethene ug/L 20 113 60-140109 320ND22.6 21.8 Trichlorofluoromethane ug/L 20 107 60-140108 120ND21.3 21.5 Vinyl chloride ug/L 20 99 60-14097 220ND19.8 19.4 1,2-Dichloroethane-d4 (S)%100 70-13098 4-Bromofluorobenzene (S)%100 70-130102 Toluene-d8 (S)%98 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 57 of 64 #=QL# QUALIFIERS Pace Project No.: Project: 92659969 FOUR POINT 76 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Common Laboratory Contaminant.C9 Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated samples may be biased high.L1 Matrix spike recovery and/or matrix spike duplicate recovery was outside laboratory control limits.M0 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 58 of 64 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92659969 FOUR POINT 76 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92659969001 765582VMW-1 SM 6200B 92659969002 767056MW-1 SM 6200B 92659969003 765574MW-2 SM 6200B 92659969004 765582MW-3 SM 6200B 92659969005 765582MW-4 SM 6200B 92659969006 766100MW-5 SM 6200B 92659969007 765582MW-6 SM 6200B 92659969008 765574MW-7 SM 6200B 92659969009 765582MW-8 SM 6200B 92659969010 765582MW-9 SM 6200B 92659969011 765582WSW-2 SM 6200B 92659969012 765582WSW-7 SM 6200B 92659969013 765582WSW-8 SM 6200B 92659969014 765582WSW-9 SM 6200B 92659969015 765582WSW-17 SM 6200B 92659969016 765574WSW-18 SM 6200B 92659969017 765574WSW-19 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/12/2023 01:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 59 of 64