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Home My WebLink AboutNC0000078_Groundwater Monitoring Report March 2023_20230331#=CL# March 29, 2023 LIMS USE: FR - BERNIE KELLY LIMS OBJECT ID: 92657156 92657156 Project: Pace Project No.: RE: Mr. Bernie Kelly Davidson River Village, LLC P.O. Box 880 Pisgah Forest, NC 28768 MWS MARCH 2023-Revised Report Dear Mr. Kelly: Enclosed are the analytical results for sample(s) received by the laboratory on March 15, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte Report revised on 03/29/23 to include field date for all three samples. If you have any questions concerning this report, please feel free to contact me. Sincerely, Sara Poulson sara.poulson@pacelabs.com Project Manager (704)875-9092 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 1 of 21 #=CP# CERTIFICATIONS Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 2 of 21 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92657156001 Q88V2 EPA 6020B 7 PASI-AKRL EPA 7470A 1 PASI-ANMP SM 2540C-2015 1 PASI-AJMH1 EPA 300.0 Rev 2.1 1993 1 PASI-ACDC EPA 350.1 Rev 2.0 1993 1 PASI-AARJ SM 5310B-2014 1 PASI-AMJP 92657156002 ASB-01 EPA 6020B 7 PASI-AKRL EPA 7470A 1 PASI-ANMP SM 2540C-2015 1 PASI-AJMH1 EPA 300.0 Rev 2.1 1993 1 PASI-ACDC EPA 350.1 Rev 2.0 1993 1 PASI-AARJ SM 5310B-2014 1 PASI-AMJP 92657156003 ASB-02 EPA 6020B 7 PASI-AKRL EPA 7470A 1 PASI-ANMP SM 2540C-2015 1 PASI-AJMH1 EPA 300.0 Rev 2.1 1993 1 PASI-ACDC EPA 350.1 Rev 2.0 1993 1 PASI-AARJ SM 5310B-2014 1 PASI-AMJP PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 3 of 21 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report Sample:Q88V2 Lab ID:92657156001 Collected:03/15/23 11:40 Received:03/15/23 16:30 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: Pace Analytical Services - Charlotte Monitoring Well Data Performed by Pace 03/29/23 16:591 Collected By MPS 03/29/23 16:591 Collected Date 3/15/23 03/29/23 16:591 Collected Time 11:40 03/29/23 16:591 pH 5.37 Std. Units 03/29/23 16:591 Temperature 14.7 deg C 03/29/23 16:591 Static Water Level 54.75 feet 03/29/23 16:591 Specific Conductance 15.7 umhos/cm 03/29/23 16:591 Oxygen, Dissolved 6.02 mg/L 03/29/23 16:59 7782-44-71 Total Well Depth 68.5 feet 03/29/23 16:591 REDOX 63.3 mV 03/29/23 16:591 Turbidity 0.52 NTU 03/29/23 16:591 Odor None 03/29/23 16:591 Appearance Clear 03/29/23 16:591 Analytical Method: EPA 6020B Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6020 MET ICPMS Arsenic ND ug/L 03/22/23 00:26 7440-38-203/17/23 10:361.0 1 Chromium ND ug/L 03/22/23 00:26 7440-47-303/17/23 10:361.0 1 Cobalt ND ug/L 03/22/23 00:26 7440-48-403/17/23 10:361.0 1 Iron ND ug/L 03/22/23 00:26 7439-89-603/17/23 10:3650.0 1 Lead ND ug/L 03/22/23 00:26 7439-92-103/17/23 10:361.0 1 Manganese 9.8 ug/L 03/22/23 00:26 7439-96-503/17/23 10:362.0 1 Sodium 1010 ug/L 03/22/23 00:26 7440-23-503/17/23 10:362501 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 03/16/23 12:18 7439-97-603/16/23 09:180.20 1 Analytical Method: SM 2540C-2015 Pace Analytical Services - Asheville 2540C Total Dissolved Solids Total Dissolved Solids ND mg/L 03/16/23 11:4825.0 1 Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services - Asheville 300.0 IC Anions 28 Days Sulfate ND mg/L 03/17/23 02:49 14808-79-81.0 1 Analytical Method: EPA 350.1 Rev 2.0 1993 Pace Analytical Services - Asheville 350.1 Ammonia Nitrogen, Ammonia ND mg/L 03/24/23 10:31 7664-41-70.10 1 Analytical Method: SM 5310B-2014 Pace Analytical Services - Asheville 5310B TOC Total Organic Carbon ND mg/L 03/16/23 18:14 7440-44-01.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 4 of 21 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report Sample:ASB-01 Lab ID:92657156002 Collected:03/15/23 13:05 Received:03/15/23 16:30 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: Pace Analytical Services - Charlotte Monitoring Well Data Performed by Pace 03/29/23 17:031 Collected By MPS 03/29/23 17:031 Collected Date 3/15/23 03/29/23 17:031 Collected Time 13:05 03/29/23 17:031 pH 6.16 Std. Units 03/29/23 17:031 Temperature 13.2 deg C 03/29/23 17:031 Static Water Level 7.97 feet 03/29/23 17:031 Specific Conductance 400.7 umhos/cm 03/29/23 17:031 Oxygen, Dissolved 0.13 mg/L 03/29/23 17:03 7782-44-71 Total Well Depth 15.00 feet 03/29/23 17:031 REDOX -12.2 mV 03/29/23 17:031 Turbidity 5.94 NTU 03/29/23 17:031 Odor None 03/29/23 17:031 Appearance Clear 03/29/23 17:031 Analytical Method: EPA 6020B Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6020 MET ICPMS Arsenic ND ug/L 03/22/23 00:30 7440-38-203/17/23 10:361.0 1 Chromium ND ug/L 03/22/23 00:30 7440-47-303/17/23 10:361.0 1 Cobalt 4.0 ug/L 03/22/23 00:30 7440-48-403/17/23 10:361.0 1 Iron 717 ug/L 03/22/23 00:30 7439-89-603/17/23 10:3650.0 1 Lead ND ug/L 03/22/23 00:30 7439-92-103/17/23 10:361.0 1 Manganese 1820 ug/L 03/22/23 20:00 7439-96-503/17/23 10:3620.0 10 Sodium 28000 ug/L 03/22/23 20:00 7440-23-503/17/23 10:36250010 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 03/16/23 12:20 7439-97-603/16/23 09:180.20 1 Analytical Method: SM 2540C-2015 Pace Analytical Services - Asheville 2540C Total Dissolved Solids Total Dissolved Solids 255 mg/L 03/16/23 11:4825.0 1 Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services - Asheville 300.0 IC Anions 28 Days Sulfate 8.3 mg/L 03/17/23 03:05 14808-79-81.0 1 Analytical Method: EPA 350.1 Rev 2.0 1993 Pace Analytical Services - Asheville 350.1 Ammonia Nitrogen, Ammonia ND mg/L 03/24/23 10:32 7664-41-70.10 1 Analytical Method: SM 5310B-2014 Pace Analytical Services - Asheville 5310B TOC Total Organic Carbon ND mg/L 03/16/23 18:31 7440-44-01.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 5 of 21 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report Sample:ASB-02 Lab ID:92657156003 Collected:03/15/23 14:10 Received:03/15/23 16:30 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: Pace Analytical Services - Charlotte Monitoring Well Data Performed by Pace 03/29/23 17:061 Collected By MPS 03/29/23 17:061 Collected Date 3/15/23 03/29/23 17:061 Collected Time 14:15 03/29/23 17:061 pH 5.94 Std. Units 03/29/23 17:061 Temperature 14.4 deg C 03/29/23 17:061 Static Water Level 12.00 feet 03/29/23 17:061 Specific Conductance 124.5 umhos/cm 03/29/23 17:061 Oxygen, Dissolved 1.93 mg/L 03/29/23 17:06 7782-44-71 Total Well Depth 12.00 feet 03/29/23 17:061 REDOX -15.9 mV 03/29/23 17:061 Odor None 03/29/23 17:061 Appearance Clear 03/29/23 17:061 Analytical Method: EPA 6020B Preparation Method: EPA 3010A Pace Analytical Services - Asheville 6020 MET ICPMS Arsenic ND ug/L 03/22/23 00:34 7440-38-203/17/23 10:361.0 1 Chromium ND ug/L 03/22/23 00:34 7440-47-303/17/23 10:361.0 1 Cobalt ND ug/L 03/22/23 00:34 7440-48-403/17/23 10:361.0 1 Iron 173 ug/L 03/22/23 00:34 7439-89-603/17/23 10:3650.0 1 Lead ND ug/L 03/22/23 00:34 7439-92-103/17/23 10:361.0 1 Manganese 3.4 ug/L 03/22/23 00:34 7439-96-503/17/23 10:362.0 1 Sodium 11800 ug/L 03/22/23 20:04 7440-23-503/17/23 10:3612505 Analytical Method: EPA 7470A Preparation Method: EPA 7470A Pace Analytical Services - Asheville 7470 Mercury Mercury ND ug/L 03/16/23 12:22 7439-97-603/16/23 09:180.20 1 Analytical Method: SM 2540C-2015 Pace Analytical Services - Asheville 2540C Total Dissolved Solids Total Dissolved Solids 86.0 mg/L 03/16/23 11:4825.0 1 Analytical Method: EPA 300.0 Rev 2.1 1993 Pace Analytical Services - Asheville 300.0 IC Anions 28 Days Sulfate 4.7 mg/L 03/17/23 03:20 14808-79-81.0 1 Analytical Method: EPA 350.1 Rev 2.0 1993 Pace Analytical Services - Asheville 350.1 Ammonia Nitrogen, Ammonia ND mg/L 03/24/23 10:37 7664-41-70.10 1 Analytical Method: SM 5310B-2014 Pace Analytical Services - Asheville 5310B TOC Total Organic Carbon ND mg/L 03/16/23 18:50 7440-44-01.0 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 6 of 21 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report 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: 761721 EPA 7470A EPA 7470A 7470 Mercury Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92657156001, 92657156002, 92657156003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3956267 Associated Lab Samples:92657156001, 92657156002, 92657156003 Matrix:Water Analyzed Mercury ug/L ND 0.20 03/16/23 11:35 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3956268LABORATORY CONTROL SAMPLE: LCSSpike Mercury ug/L 2.72.5 108 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 3956269MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92656398009 3956270 MSD Result MSD % Rec RPD MSDMS Spike Conc. Mercury ug/L 2.5 104 75-125108 32.5ND 2.6 2.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 7 of 21 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report 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: 762033 EPA 3010A EPA 6020B 6020 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92657156001, 92657156002, 92657156003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3958034 Associated Lab Samples:92657156001, 92657156002, 92657156003 Matrix:Water Analyzed Arsenic ug/L ND 1.0 03/21/23 23:51 Chromium ug/L ND 1.0 03/21/23 23:51 Cobalt ug/L ND 1.0 03/21/23 23:51 Iron ug/L ND 50.0 03/21/23 23:51 Lead ug/L ND 1.0 03/21/23 23:51 Manganese ug/L ND 2.0 03/21/23 23:51 Sodium ug/L ND 250 03/21/23 23:51 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3958035LABORATORY CONTROL SAMPLE: LCSSpike Arsenic ug/L 48.350 97 80-120 Chromium ug/L 52.250 104 80-120 Cobalt ug/L 52.850 106 80-120 Iron ug/L 13201250 106 80-120 Lead ug/L 48.850 98 80-120 Manganese ug/L 51.250 102 80-120 Sodium ug/L 26202500 105 80-120 Parameter Units MS Result % Rec Limits Qual% RecConc. 3958036MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92657153005 3958037 MSD Result MSD % Rec RPD MSDMS Spike Conc. Arsenic ug/L 50 97 75-12597 0500.13J 48.5 48.6 Chromium ug/L 50 104 75-125105 1500.52J 52.7 53.0 Cobalt ug/L 50 106 75-125107 1500.81J 53.7 54.1 Iron ug/L 1250 109 75-125111 1125098823602370 Lead ug/L 50 100 75-125101 0500.12J 50.3 50.5 Manganese ug/L M1503475-12541 150304321324 Sodium ug/L M125005375-12554 02500109001230012300 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 8 of 21 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report 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: 761803 SM 2540C-2015 SM 2540C-2015 2540C Total Dissolved Solids Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92657156001, 92657156002, 92657156003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3956579 Associated Lab Samples:92657156001, 92657156002, 92657156003 Matrix:Water Analyzed Total Dissolved Solids mg/L ND 25.0 03/16/23 11:48 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3956580LABORATORY CONTROL SAMPLE: LCSSpike Total Dissolved Solids mg/L 268250 107 90-110 Parameter Units Dup Result QualifiersRPDResult 92657156001 3956581SAMPLE DUPLICATE: Total Dissolved Solids mg/L NDND REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 9 of 21 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report 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: 761934 EPA 300.0 Rev 2.1 1993 EPA 300.0 Rev 2.1 1993 300.0 IC Anions Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92657156001, 92657156002, 92657156003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3957744 Associated Lab Samples:92657156001, 92657156002, 92657156003 Matrix:Water Analyzed Sulfate mg/L ND 1.0 03/16/23 21:25 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3957745LABORATORY CONTROL SAMPLE: LCSSpike Sulfate mg/L 50.050 100 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 3957746MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92656734001 3957747 MSD Result MSD % Rec RPD MSDMS Spike Conc. Sulfate mg/L 50 99 90-11097 15074.1 123 123 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 10 of 21 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report 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: 762918 EPA 350.1 Rev 2.0 1993 EPA 350.1 Rev 2.0 1993 350.1 Ammonia Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92657156001, 92657156002, 92657156003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3962036 Associated Lab Samples:92657156001, 92657156002, 92657156003 Matrix:Water Analyzed Nitrogen, Ammonia mg/L ND 0.10 03/24/23 10:01 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3962037LABORATORY CONTROL SAMPLE: LCSSpike Nitrogen, Ammonia mg/L 5.05 100 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 3962038MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92657146001 3962039 MSD Result MSD % Rec RPD MSDMS Spike Conc. Nitrogen, Ammonia mg/L 5 108 90-110108 05ND5.4 5.4 Parameter Units MS Result % Rec Limits Qual% RecConc. 3962040MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92657146002 3962041 MSD Result MSD % Rec RPD MSDMS Spike Conc. Nitrogen, Ammonia mg/L 5 96 90-11096 0516.8 21.7 21.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 11 of 21 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report 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: 761834 SM 5310B-2014 SM 5310B-2014 5310B TOC Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92657156001, 92657156002, 92657156003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3956812 Associated Lab Samples:92657156001, 92657156002, 92657156003 Matrix:Water Analyzed Total Organic Carbon mg/L ND 1.0 03/16/23 14:31 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3956813LABORATORY CONTROL SAMPLE: LCSSpike Total Organic Carbon mg/L 24.425 98 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 3956814MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92657170004 3956815 MSD Result MSD % Rec RPD MSDMS Spike Conc. Total Organic Carbon mg/L M125-960 90-110-1830 225132001300012700 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 12 of 21 #=QL# QUALIFIERS Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report 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 EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 13 of 21 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92657156 MWS MARCH 2023-Revised Report Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92657156001 Q88V2 92657156002 ASB-01 92657156003 ASB-02 92657156001 762033 762128Q88V2EPA 3010A EPA 6020B 92657156002 762033 762128ASB-01 EPA 3010A EPA 6020B 92657156003 762033 762128ASB-02 EPA 3010A EPA 6020B 92657156001 761721 761807Q88V2EPA 7470A EPA 7470A 92657156002 761721 761807ASB-01 EPA 7470A EPA 7470A 92657156003 761721 761807ASB-02 EPA 7470A EPA 7470A 92657156001 761803Q88V2SM 2540C-2015 92657156002 761803ASB-01 SM 2540C-2015 92657156003 761803ASB-02 SM 2540C-2015 92657156001 761934Q88V2EPA 300.0 Rev 2.1 1993 92657156002 761934ASB-01 EPA 300.0 Rev 2.1 1993 92657156003 761934ASB-02 EPA 300.0 Rev 2.1 1993 92657156001 762918Q88V2EPA 350.1 Rev 2.0 1993 92657156002 762918ASB-01 EPA 350.1 Rev 2.0 1993 92657156003 762918ASB-02 EPA 350.1 Rev 2.0 1993 92657156001 761834Q88V2SM 5310B-2014 92657156002 761834ASB-01 SM 5310B-2014 92657156003 761834ASB-02 SM 5310B-2014 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/29/2023 05:13 PM Pace Analytical Services, LLC 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Page 14 of 21 Page 15 of 21 Page 16 of 21 Page 17 of 21 Page 18 of 21 Page 19 of 21 Page 20 of 21 Page 21 of 21