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HomeMy WebLinkAboutMO-4267_13401_CA_MRP_20200930_Semi-Annual Monitoring ReportMONITORING REPORT 85 KWIK MART 5007 DAVIDSON HIGHWAY CONCORD, CABARRUS COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT NO. 13401 Shield Project No. 1090060 Period: February - August 2020 Responsible Party: Security Oil Company, Inc. PO Box 5028 Concord, NC 28027 Contact: Dale Carpenter (704) 786-7235 Site Risk Classification: High Land Use Category: Industrial /Commercial Site Latitude: 35' 26' 08" North Site Longitude: 80' 39' 45" West Consultant: Property Owner: Shield Engineering, Inc. Prime Business LLC A NC 4301 Taggart Creek Road 1534 Copperplate Road Charlotte, NC 28208 Charlotte, NC 28262 Contact: Contact: Kevin P. Stachura Shailesh Panara (704) 394-6913 (704) 788-7942 Release Discovered: December 1994 Quantity Released: Unknown Suspected Release Source(s): One 4,000-gallon gasoline UST Release Cause: Possible spillage/leak from UST 70 f Kevin P. Stachura hwas Witner, L.G. Staff Geologist E AL�rin�ipal 916 SIC license #916 September 30, 2020 �1J111J11l1J TABLE OF CONTENTS Pal4e No. 1.0 DISCUSSION OF SAMPLING RESULTS........................................................................ 1 2.0 CONCLUSIONS.................................................................................................................4 3.0 RECOMMENDATIONS.................................................................................................... 4 4.0 STATEMENTS AND CERTIFICATIONS........................................................................ 5 5.0 LIMITATIONS.......................................................................................6 FIGURES Figure 1: Site Location Map Figure 2: Site Map Figure 3: 1500' Radius Map Figure 4: Groundwater Elevation Contour Map Figure 5: Benzene Isoconcentration Map Figure 6: MTBE Isoconcentration Map Figure 7: 1,2-DCA Isoconcentration Map TABLES Table 1: Summary of Water Supply Well Information Table 2: Summary of Well Construction and Historical Groundwater Elevation Data Table 3: Summary of Analytical Results — Groundwater Samples Table 4: Summary of Historical Groundwater Analytical Results APPENDICES Appendix A: Laboratory Report — Groundwater Samples hilps://shieldengineeringl.sharepoint.com/sites/Projects/Shm-ed Documents/General/2009/1090060-01 85 Kwih Mur7/Reporis/September 2020 MR/M0-4267 13401_CA_MRP 20200924_Semi-Annual4lonitoringRepa7.doc 85 Kwik Mart Monitoring Report Concord, Cabarrus County, North Carolina September 30, 2020 Incident#: 13401 Page 1 1.0 DISCUSSION OF SAMPLING RESULTS 1.1 Site Monitorinp- Requirements: Site Location Map: See Figure 1 Site Map: See Figure 2 Site Monitoring Requirements Based on CAP and/or NORR Sample Point Total Quantity of Previous Required by NCDEQ to be Type Sample Points and Their Monitored and Sampled per CAP Identification and/or TA Monitoring 16 5 0) Wells (MW-1, MW-IA, MW-2, MW-3, (MW-4A, MW-5, MW-8AR, MW-15A, MW-4A, MW-5, MW-6, MW-6A, DW-1) MW-8AR, MW-9AR, MW-12, MW- 13, MW-13A, MW-15, MW-15A, DW-1 Water Supply 1 1�'� Wells(WSW-Ring Power Crane) (1) Individual wells identified by the North Carolina Department of Environmental Quality (NCDEQ) for specific sampling at this time. 1.2 Summary of Analytical Results and Free Product Thickness s : 1.2.1 Date(s) of Sampling Event: August 26, 2020 1.2.2 Existing Area Receptors: One water supply well (WSW- Ring Power Crane) used for irrigation only is located within 225 feet of the source area. One water supply well (WSW -Rowan / Cabarrus Community College) used for only irrigation is located 1,010 feet to the north-northeast of the source area. Refer to the following Table and Figure for information and locations of area receptors within a 1,500-foot radius of the site. Refer to the following Tables and Figure(s) for information and locations of area receptors identified. Refer to Figure(s): Figure 3 Refer to Tables(s): Table 1 85 Kwik Mart Monitoring Report Concord, Cabarrus County, North Carolina September 30, 2020 Incident#: 13401 Page 2 1.2.3 Groundwater Elevation Data: • Groundwater elevation data for the August 2020 sampling event is included in the following Table and Figure: Refer to Table: Table 2 Refer to Figure: Figure 4 1.2.4 Free Product/Impacted Groundwater Recovery: • Free product detected during this reporting period?: No 1.2.5 Groundwater Analytical Results: • Sampled Points and Analytical Methods: The following monitoring wells and other points were sampled during this reporting period. Sampled Points and Analytical Methods for this Reporting Period Based on CAP and Pre -Approval Task Authorization Sampling Requirements _ Type Points Sampled during this Analytical Methods Reporting Period Monitoring (5) (1) . EPA Method 6200B Wells (MW-4A, MW-BAR, DW-1) Water Supply 0 EPA Method 6200B Wells(WSW-Ring Power Crane (1) Pre -Approval Task Authorization TA-13401-29. • MW-5 and MWA 5A and WSW -Ring Power Crane were not sampled during the August 2020 sampling event. Shield was unable to bail MW-15A due to possible sediment blockage at 3 feet below the top of casing. • Shield could not access MW-5. Several pre -built shed structures were for sale on the site. One of the pre -built structures was positioned over MW-5. The owner did not readily have the vehicle equipment at the time of site visit to move the pre -built structures. Shield instructed the owner of the pre -built structures where MW-5 was located. Shield asked the owner to move his structures to allow access to MW-5 in the future. 85 Kwik Mart Monitoring Report Concord, Cabarrus County, North Carolina September 30, 2020 Incident#: 13401 Page 3 • Laboratory Used: Pace Analytical Services Inc. Huntersville, North Carolina • Current Groundwater Analytical Data: Refer to the following Table and Appendix for current groundwater analytical data. Refer to Figures Figures 5 through 7 Refer to Table: Table 3 Refer to Appendix: Appendix A Historical Groundwater Analytical Data: Refer to the following table(s) for historical groundwater analytical data. Refer to Table(s): Table 4 • Predictive Rate of Contaminant Transport: Refer to the October 1997 Integrity Environmental Consultants Comprehensive Site Assessment. Contaminant transport is typically in the same direction as groundwater flow, but with a slower velocity. Refer to the following Tables and Figure: Refer to Table(s): Tables 2 through 4 Refer to Figure(s): Figure 4 through 7 1.2.6 Other Field Data Collected: • No additional field data was collected. 85 Kwik Mart Monitoring Report Concord, Cabarrus County, North Carolina September 30, 2020 Incident#: 13401 Page 4 2.0 CONCLUSIONS • Dissolved phase constituents of concern were detected in concentrations exceeding the NCDEQ NCAC 15A 2L.0202 standards (2L Standards) in monitoring wells MW-4Aand DW-I during the August 2020 sampling event. 1, 2-dichloroethane (1, 2-DCA) was detected over the NCDEQ gross contaminant level (GCL) in monitoring well MW-5 in the previous February 2020 sampling event. Shield was unable to access MW-5 during the August 2020 sampling event, a pre -built shed structure was positioned over the monitoring well. • Free product was not detected during this monitoring period. • When compared to the February 2020 sampling event, the overall concentration of volatile organic compounds (VOCs) has increased in monitoring well MW-4A. • When compared to the February 2020 sampling event, the overall concentration of VOCs has remained relatively the same in monitoring well DW-1. • The 1,2-DCA concentration in water supply well WSW -Ring Power Crane decreased below the 2L Standard since the August 2019 sampling event. • Dissolved phase constituents of concern remained below laboratory analytical detection limits (Non -Detect [ND]) for the sample collected from monitoring well MW-8AR during the August 2020 sampling event. 3.0 RECOMMENDATIONS Continue sampling of groundwater on a semi-annual basis as required by the NCDEQ in the NORR dated July 18, 2013 [MW-4A, MW-5, MW-8AR, MW-15A (if possible) and DW-1] and recommend including the sampling of WSW -Ring Power Crane, with the next event report due by March 2021. 85 Kwik Mart Concord, Cabarrus County, North Carolina Monitoring Report September 30, 2020 Incident#: 13401 Page 5 4.0 STATEMENTS & CERTIFICATION 1 Enter the date the monitoring report was due. 9130/20. Will this report be submitted YES after the established due date? 2 Was any required information from the above template missing from this report? YES NO IF the answer to question #1 or# 2 is "YES", please provide additional information in this cell to explain what was missing and why. 3 If applicable, will any of the proposed attenuation milestones under the schedule YES NO approved in the Corrective Action Plan not be met? (within a reasonable margin of error) IF the answer to question #3 is "NO", skip to the certification under #6 below. IF the answer to question #3 is "YES", please generally describe in this cell the possible reason(s) and outline proposed remedies. (This should be described in more detail in the report text above.) 4 Does any known or suspected source zone soil contamination or free product remain YES NO outside of the assessed area that could be inhibiting natural attenuation? 5 Has there been an unexpected increase in contaminant mass sufficient to suggest a YES NO potential new release from a separate onsite or offsite source? IF the answer to either question #4 or #5 is "YES", generally describe in this cell any actions recommended to further assess or clean up this known or suspected source. (This should be described in more detail in the report text above.) 6 Certification: I, Thomas Witner, a Professional Geologist for Shield Engineering, Inc., do certify that the information contained in this report is correct and accurate to the best of my knowledge. •�``4lir k r y r f t *1 J r i Fes" r. Z y� r J f.. 91 OG\S (Affix Seal and Signature) 4y-40�'93'Vy. j1l� %4h11fpN�H�� Shield Engineering, Inc. is licensed to practice geology and engineering in North Carolina. The certification number of the company or corporation is C-170(Geology) and F-0856 (Engineering). 85 Kwik Mart Monitoring Report Concord, Cabarrus County, North Carolina September 30, 2020 Incident#: 13401 Page 6 5.0 LIMITATIONS Shield has performed environmental services at the subject site on behalf of Security Oil Company, Inc. Shield has performed this scope of work as an independent contractor/consultant using reasonable care and skill in accordance and consistent with customary industry standards of engineering, geology, and hydrogeology practices. This standard of care is the sole and exclusive standard of care that can be applied to measure Shield's performance of the work. No other warranty, expressed or implied is made or intended by Shield. The report has been prepared for the exclusive use by Security Oil Company, Inc. All recommendations, findings, and conclusions, made by Shield have been made to the best of Shield's knowledge, opinion and belief, based upon information obtained during this scope of Security Oil Company, Inc. and Shield. Conclusions are provided with the understanding that Shield is presenting information and not rendering legal advice. If such advice is needed, legal counsel should be consulted. It is the responsibility of Security Oil Company, Inc. under advice of its counsel to notify the appropriate federal, state, or local public agencies as required by law; or otherwise to disclose in a timely manner, any information that may be necessary to prevent damage to human health, safety, or the environment. Compliance with recommendations provided as part of this report in noway assures compliance with federal, state and/or local laws, regulations, and/or requirements. Analytical data has been obtained from Pace Analytical Services Inc. This information, to the extent that it was relied on to generate this report, is assumed to be correct and complete. The work performed in conjunction with this report and the data developed are intended as a description of available information at the dates and specific locations given. Shield is not responsible for inspecting, examining, or reporting findings or recommendations with respect to any conditions that were knowingly or unknowingly withheld, concealed, hidden, or in any way not disclosed or observable at the time of this scope of work. FIGURES C:\USERS\KSTACHURA\SHIELD ENGINEERING\PROJECTS - FIGURES\SITE LOCATION MAP.DWG In O C n m m Z D z m O Z n D r Om cC) O = c� z jLn M !n OO n14 0 `n r 3 z z D C m m un D r p D � I' m, rn qll lrn N � = o 0o rn� 0 0 0-4oo r z z mvc� 0 D Z b rn zDC) >_� o ::E D� >s s6 T S 0 w m N� N 3 RA 0 0 ,:. � r ' ne � H,?id S{}DdatiNd �„ �- . ;� 'ti ,`, � i4 � �,'• '" QIAYIyt r [► TF?FNIT $L-,4vwy �� 7 ; N C H RD �,• , . INTOMATIQNAt LV ra r y• r {' r.•r kj L ! 4 - WSW -RING POWER CRANE N 4x'_ _T / MW-14 — — — — - - / RING POWER CRANE DAVIDSON HIGHWAY — — � )IMWSA — — Y' ^- I � a MW-8AR MW--a-------� MIN•4 — — MWRAR $ W4 I I 0 pc MW-13A FORMER I zz a SVE-4 FUEL CANOPY g $ SPARGE5 UST BED I MW-13 $ $ MW-4 1 I MW-15A MW-4A HUDDLE HOUSE / I I $ I MW 15 $ Mw-1A (]• SVE-2 SPAgjE 2 I TEXACO KWIK MART $ MW-3 DIESEL MW 1 $ I $Mw-s 0 PUMPS j I Q I SPARGE 4 o vE-s SVE-1 SPARGE , it DW 1 MW-6A$ $ MW--6 SPARGE 3 MW-12 ASPHALT 1 I I MW-7 $ [il SVE-3 $MW 2 I I I I I 'wMW-10 I I WOODED AREA I DW-P I I I LEGEND I I 1 $ MONITORING WELL MW-11 ® DEEP MONITORING WELL FeEl AIR SPARGE WELL GRAPHIC SCALE 8 SOIL VAPOR EXTRACTION WELL 0 10 zo 30 40 50 60 G q�pl FAGgRFC REEK ROAD m�csu zazoe SHIELD..,.. 1 WATER SUPPLY WELL SCALE:1in, =60tt. ENGINEERING, INC. — — PROPERTY BOUNDARY SITE MAP ABANDONED OR DESTROYED MONITORING WELL 85 KWIK MART 5007 DAVIDSON HIGHWAY CONCORD, NORTH CAROLINA SHIELD #1090060 NOTES: 1. REFERENCE: SEI PROFESSIONAL SERVICES, P.C. SITE MAP FIGURE 3. DATE : 03/01 / 19 DRAWN BY: MTS 2. ALL LOCATIONS ARE APPROXIMATE. SCALE : AS SHOWN FIGURE : 2 ROWAN / CABARRUS COMMUNITY COLLEGE RING f/ POWER ._ CRANE (- OFFICES CIRCLE K 5601489246 601484387 l 5601572898 DAVIDSON HIGHWAY �. 5601465847 i I �OfGS _ GIST TRAILERS 7 r s'q0, 1140 .pis o HIGHWAY - - LEGEND O SITE SOURCE WATER SUPPLY WELL 5601570232 PROPERTY IDENTIFICATION NUMBER NOTES: 1. REFERENCE SEI PROFESSIONAL SERVICES, P.C. FIGURE AND CABARRUS COUNTY, NORTH CAROLINA GIS 2. ALL LOCATIONS ARE APPROXIMATE. GRAPHIC SCALE 0 100' 2(0' 300' SCALE: 1 in. = 300 ft. 0 N Q O 0- Q W W HUDDLE HOUSE / I TEXACO I' N / — —_ / MW14 -- _ DW-238 WSW -RING POWER CRANE RING POWER CRANE DAVIDSON HIGHWAY *MW-&A -- -- _— W MW-8 MW AW-9 u w MW•BAR �'� M NW Q Q 16q•Bt} FORM INMV Mw-1 A • * INMi UEL CAN Y' I zQ SVE-4 ❑ UST BED I IWW15A 6i1 i $ MM 4 ! MW-4A 1 � 16o.e7) N 15 $ 60 B5 SPARGE 2 (M)1A ❑SVE-2 I *f I[Wllt MART 8 W_1 DIESEL MW)-3 I 6mw,5 (� PUMPS f •SVE 5 SVE-1 S ARGE 1 II e SPARGE 4 DW 1 I+ [en.vlt I (NW-6A**MM)-6 8 I SPARGE 3 ASPHALT I I MW-7 $ F01 SVE-3 1 (NM) Q MW-2 NMi I I )KMW-10 I I LEGEND I I' MONITORING WELL ® DEEP MONITORING WELL ABANDONED OR DESTROYED MONITORING WELL MW-11 AIR SPARGE WELL B SOIL VAPOR EXTRACTION WELL WATER SUPPLY WELL PROPERTY BOUNDARY (ft) FEET (60.87) GROUNDWATER ELEVATION (ft) [83.141 GROUNDWATER ELEVATION (ft) NOT USED IN CONTOURING (NM) NOT MEASURED — — — GROUNDWATER ELEVATION CONTOUR LINE (ft) —► GENERALIZED GROUNDWATER FLOW DIRECTION NOTES: 1. REFERENCE: SEI PROFESSIONAL SERVICES, P.C. SITE MAP FIGURE 3. 2- ALL LOCATIONS ARE APPROXIMATE. 3- DEPTHS TO GROUNDWATER GAUGED ON 08/26/20. 4- CONTOUR INTERVAL = 0.20 FOOT_ I WOODED AREA I I GRAPHIC SCALE 0 10 20 30 40 50 60 4361 FAGGARF CREEK ROAD ,SHIELD .. o �L�EgHC 29�p6 roam•eav ENGINEERING, INC. ""-mo-0"""m— SCALE: 1 in. = 60 ft. GROUNDWATER ELEVATION CONTOUR MAP 85 KWIK MART 5007 DAVIDSON HIGHWAY CONCORD, NORTH CAROLINA SHIELD #1090060 DATE : 09/25/20 DRAWN BY: KPS SCALE : AS SHOWN FIGURE: 4 WSW -RING POWER CRANE [ND1 RING POWER CRANE N /MW14 I — — DAVIDSON HIGHWAY MW-8A — — — — MW-8 MW �jA a ___ _ INS II W-9 CL MMW FORMER MW 9(t� lN51 N � (ND) FORINS! Mw.13A z a SVE-4 FUEL CANOPY I g i— SPARGE 5 ~. UST BED I rMW-13MW•4 J .MW-15A Ns! Mw-4A i47 41 HUDDLE I (* ms, `_ SS RGE z � W-1A ❑• SVE-2 HOUSE / u Mw-1' TEXACO rNsl � KWIK MART B t 0 DIESEL Q MW-3 �C] MW 1.0 (NS) Mw•5 �5V � PUMPS I �lNsi SPARGE 4 SVE-5 //SVE-1 ! SPARGE 1 —SPARGE 3 j0 0)1 I +KrWI- *,mw-6, r8� I ~ ASPHALT MW-12 p N5 I I MW-7 � 0 SVE-3 1 INSI Q MW-2 JI (N5) I I I I [ * MW-10 I WOODED AREA DW-2 3 LEGEND MONITORING WELL 1 ® DEEP MONITORING WELL 1 ABANDONED OR DESTROYED MONITORING WELL MW-11 AIR SPARGE WELL GRAPHIC SCALE SOIL VAPOR EXTRACTION WELL o 10 zo 30 40 so 60 WATER SUPPLY WELL — — — — PROPERTY BOUNDARY SCALE: 1 in. = 60 ft. (ug/L) MICROGRAMS PER LITER (97.4) BENZENE CONCENTRATION (ug/L) [ND] BENZENE CONCENTRATION (ug/L) NOT USED IN CONTOURING BENZENE ISOCONCENTRATION CONTOUR LINE (ug/L) DERIVED FROM CURRENT AUGUST 2020 AND PREVIOUS MARCH 2O20 HISTORICAL DATA (ND) NOT DETECTED AT OR ABOVE LABORATORY DETECTION LIMITS (NS) NOT SAMPLED NOTES: 1. REFERENCE: SEI PROFESSIONAL SERVICES, P.C. SITE MAP FIGURE 3. 2. ALL LOCATIONS ARE APPROXIMATE. 3. GROUNDWATER SAMPLES COLLECTED ON 08/26/20. 4. CONTOUR INTERVALS = AS SHOWN. e, 3 a 0 N CD O gd 2 W F N W U- HUDDLE HOUSE / TEXACO WSW -RING POWER CRANE [1.41 RING POWER CRANE DAVIDSON HIGHWAY MW-8A MW 8 MW A [ (NS) W-9 l u MWiaAR � �--- � Insi mW;13A FORMER z SVE-4 ❑� +Nse FUEL CANOPY I WSPARGE UST BED I Lp,Ar+wsi-13 —NW-q r MW-15A / /� MW-4A ill 1 lb (Nfl _IQ SPAR 2 (NW-1A ❑� SVE-2 MW-15 MW-3 KWIK MART yV-1 � DIESEL $ M I \ �Mw-5 "n' PUMPS I " J 10 fl _ • SYE-5 SVE-1 S ARGE 1 < I SPARGE 4 �/ i SPARRGGE 3 [�W6j I Q ,MiW-6A**MW-6 ASPHALT MW 2 in (NS- I I )K MW-10 DW-2 MW-7 SVE-3 (NS) $ MW-2 (NS) LEGEND I I MONITORING WELL ® DEEP MONITORING WELL ABANDONED OR DESTROYED MONITORING WELL ❑� AIR SPARGE WELL MW-11 8 SOIL VAPOR EXTRACTION WELL GRAPHIC SCALE 0 10 20 30 40 50 60 WATER SUPPLY WELL — — — — PROPERTY BOUNDARY SCALE: 1 in. = 60 ft. (ug/L) MICROGRAMS PER LITER (596) MTBE CONCENTRATION (ug/L) [35.61 MTBE CONCENTRATION (ug/L) NOT USED IN CONTOURING MTBE ISOCONCENTRATION CONTOUR LINE (ug/L) DERIVED FROM CURRENT AUGUST 2020 AND PREVIOUS MARCH 2O20 HISTORICAL DATA (ND) NOT DETECTED AT OR ABOVE LABORATORY DETECTION LIMITS (NS) NOT SAMPLED MTBE METHYL-TERT-BUTYL ETHER NOTES: 1. REFERENCE: SEI PROFESSIONAL SERVICES, P.C. SITE MAP FIGURE 3. 2. ALL LOCATIONS ARE APPROXIMATE. 3. GROUNDWATER SAMPLES COLLECTED ON 08/26/20. 4. CONTOUR INTERVALS = AS SHOWN. WOODED AREA N SHIELD e7n InCIGART CREEK ROAD (",AR 1 ❑ f ' E. NC 28208 �� J'I•i 9aGE faz ENGINEERING, INC. ��himid gi—nng— MTBE ISOCONCENTRATION MAP 85 KWIK MART 5007 DAVIDSON HIGHWAY CONCORD, NORTH CAROLINA SHIELD #1090060 DATE : 09/3020 DRAWN BY: KPS SCALE : AS SHOWN I FIGURE : 6 I� HUDDLE HOUSE / I TEXACO I � a 1 0 MW-12 p i NS, I I WSW -RING POWER CRANE IND] RING POWER CRANE DAVIDSON HIGHWAY MW-8A— — — — — MW 8 MW A Q _ iH51 {NW-4 Q MW-8AR $ w• 3n- R O/FtfEI A�LSPARGE 5 UST BED I Ygfl f fMW-13 $ *mW-4 I INSI MW-4A ns� IJ Ir/MW15A (40,7) �\� 1 $ rrrSl y`i W-15 ��� SPARGE 2 ( ) lA ❑� SVE 2 I ICWIfC AART B _I ESEL $ NW 3 OMW-5 0 MPS _ SPARGE 4 SVE-5 SVE-1 �l 15PARGE 1 PA_ RGGEE 3 �J 1 MW-6A$ $ MW-6 ON rNsr ASPHALT I r $MW-7 ❑S SVE-3 $ MW-2 (NS) I I )K MW-10 I WOODED AREA LEGEND + I II $ MONITORING WELL I ® DEEP MONITORING WELL ABANDONED OR DESTROYED MONITORING WELL Q AIR SPARGE WELLS MW 11 GRAPHIC SCALE 8 SOIL VAPOR EXTRACTION WELL 0 10 20 30 40 50 60 WATER SUPPLY WELL — — — PROPERTY BOUNDARY SCALE: 1 in. = 60 ft. (Ug/L) MICROGRAMS PER LITER (40.7) 1,2-DICHLOROETHANE CONCENTRATION (ug/L) [1.71 1,2-DICHLOROETHANE CONCENTRATION (ug/L) NOT USED IN CONTOURING — -- 1,2-DICHLOROETHANE ISOCONCENTRATION CONTOUR LINE (ug/L) DERIVED FROM CURRENT AUGUST 2020 AND PREVIOUS MARCH 2O20 HISTORICAL DATA (ND) NOT DETECTED AT OR ABOVE LABORATORY (NS) NOT SAMPLED DETECTION LIMITS NOTES: 1. REFERENCE: SEI PROFESSIONAL SERVICES, P.C. SITE MAP FIGURE 3. 2. ALL LOCATIONS ARE APPROXIMATE. 3. GROUNDWATER SAMPLES COLLECTED ON 08/26/20. 4. CONTOUR INTERVALS = AS SHOWN. N TABLES Table 1: Summary of Water Supply Well Information 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 E z a�i — a� m c n E o " n� ��' E °' �U, °�a�i Q L Z Co LL > Q N LL WSW - Ring 5014 Davidson Highway, Ring Power Corporation Power Crane * Concord, NC 28207 10421 Fern Hill Drive 813-865-2700 Irrigation 480 6" 80 1 80-480 225 Parcel #5601-48-9246 Riverview, FL 33569 WSW - Rowan Cabarrus 1531 Trinity Church Rd, Rowan Cabarrus Community College Community Concord, NC 28207 P.O. Box 1595 704-216-7222 Irrigation unk. unk. unk. unk. 1010 College Parcel # 5601-58-6427 Salisbury, NC 28145 Notes: * = Also identified as JA Jones Property and SE Crane. Information contained in this Table reported by others. https://shieldengineeringl.sharepoint.com/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwik Mart/Reports/September 2020 MR/Supply Well Info Page 1 of 1 Table 2: Summary of Well Construction and Historical Groundwater Elevation Data 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility 1D Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Well ID Date Installed Top of Casing Elevation (feet) Well Diameter (inches) As -built Depth P (feet) Screened Interval (feet) Field Measurements Field Calculations Gauging Date Total Depth (feet) Depth to Groundwater (feet) Diff. Between As - built and Measured Total Depth (feet) Measured Water Column in Well (feet) Groundwater Elevation (feet) MW-1 1/10/1997 100.07 2 40.2 Unknown 10/22/99 NA 38.95 NA NA 61.12 7/7/00 NA 39.02 NA NA 61.05 5/8/01 NA 39.81 NA NA 60.26 10/17/01 NA DRY NA NA <59.87 6/28102 NA DRY NA NA <59.87 11/8/07 NA >40,03 NA NA <60.04 5113/09 40.12 >40.07 0.08 NA <60.00 1MW-1A 6/7/2002 99.96 2 55 Unknown 6128/02 NA 40.70 NA NA 59.26 31:24/03 NA 40.03 NA NA 59.93 11/8/07 NA 40.43 NA NA 59.53 9/4/08 NA 41.42 NA NA 58.54 5113J09 54.91 40.57 0.09 14.34 59.39 9113/10 54,91 39.56 0.09 15.35 60.40 2/24/11 54.91 40.52 0.09 14.39 59.44 11/13/12 54.91 40.83 0.09 14.08 59.13 9/1all 3 54.91 40.97 0.09 13.94 58.99 10/20/15 54.91 41.67 0.09 13.24 58.29 MW-2 1110/1907 98.81 2 43.5 Unknown 10/22/99 NA 38.08 NA NA 60.73 7/7/00 NA 38.17 NA NA 60.64 10/17/01 NA 39.28 NA NA 59.53 6/28/02 NA 40.00 NA NA 58.81 3r24/03 NA 39.23 NA NA 59.58 11/8/07 NA 39.91 NA NA 58.90 9/4/08 NA 40.75 NA NA 58.06 6113109 42.71 40.11 0.79 2.60 58.70 9/13/10 42.71 39.00 0.79 3.71 59.81 2/24/11 42.71 40.09 0.79 2.62 58.72 11/13/12 42.71 40.18 0.79 2.53 58.63 9113113 42.71 40.25 0.79 2.46 58.56 MW-3 1/10/1997 10000 2 43.5 Unknown 10/22/99 NA 38.71 NA NA 61.29 7/7/00 NA 38.73 NA NA 61.27 5/l3/01 NA 39.56 NA NA 60.44 10/17/01 NA 39.95 NA NA 60.05 6/28/02 NA 40.65 NA NA 59.35 3124103 NA 40.04 NA NA 59.96 11/8/07 NA 40.42 NA NA 59.58 9/4/08 NA 41.28 NA NA 1 .72 5/13/09 43.00 40.61 0.50 2.39 59.39 11113/12 43.00 40.77 0.50 2.23 59.23 9/13/13 43.00 40.99 0.50 2.01 59.01 10/20/15 43.00 41.66 0.50 1.34 58.34 MW-4 7/21/1997 100.10 2 444 Unknown 10/22199 NA 40.03 NA NA 60.07 7/7/00 NA DRY NA NA <55.70 5/8/01 NA DRY NA NA <55.70 10/17/01 NA 41.94 NA NA 58.16 6128102 NA DRY NA NA <55.70 5/13109 Well paved -Dyer https://shieldengineeringl.sharepoin Lcom/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwk Mart/Reports/September 2020 MR/His( GW Elev Page 1 of 6 Table 2: Summary of Well Construction and Historical Groundwater Elevation Data 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility 1D Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Well ID Date Installed Top of Casing Elevation (feet) Well Diameter (inches) As -built Depth P (feet) Screened Interval (feet) Field Measurements Field Calculations Gauging Date Total Depth (feet) Depth to Groundwater (feet) Diff. Between As - built and Measured Total Depth (feet) Measured Water Column in Well (feet) Groundwater Elevation (feet) MW-4A 8/7/2002 100.08 2 55 Unknown 6/28/02 NA 43.48 NA NA 56.60 3/24/03 NA 43.20 NA NA 56.88 11/8/07 NA 43.36 NA NA 56,72 9/4/08 NA 44,35 NA NA 55.73 5/13/09 55.03 43.76 -0.03 11.27 56.32 9/13/10 55.03 42.47 -0.03 12.56 57.61 2/24/11 55.03 43.16 -0.03 11.87 56.92 11J13/12 55.03 43.20 -0.03 11,83 56.88 9/13/13 55.03 43.10 -0.03 11.93 56.98 2/21/14 55.03 42.69 -0.03 12.34 57.39 2/26115 55,03 42.27 -0,03 12.76 57.81 10/20/15 55.03 42.92 -0.03 12.11 57.16 2/17/16 55.03 42.20 -0.03 12.83 57.88 2/14/17 1 55.03 42.30 -0.03 12.73 57.78 8/3117 55.03 42.36 -0.03 12.67 57.72 2/5/18 55.03 43.12 -0.03 11.91 56.96 8/30/18 55.03 42.95 -0.03 12.08 57.13 2/18/19 55.03 41.31 -0.03 13.72 58.77 8/15/19 55.03 39.86 -0.03 15.17 60.22 2/7/20 55.03 40.34 -0.03 14.69 59.74 8/26/20 55.03 39.21 -0.03 15.82 60.87 MW-5 7/16/1997 100.10 2 42.7 Unknown 10/22/99 NA 40.20 NA NA 59.90 7/7/00 NA 40.20 NA NA 59.90 FP 5/8/01 NA 40.44 NA NA 59.66 10/17/01 NA 41.07 NA NA 59.03 FP 6/28/02 NA 42.02 NA NA 58.08 3/24/03 NA 41.43 NA NA 58,67 9J4/08 Well not located 5/13/09 Well ved-over uncovered 1013p109 10/30/09 45.04 41.91 -2.34 3.13 58.19 9/13/10 45.04 40.76 -2.34 4.28 59.34 2/24/11 45.04 41.81 2.34 3.23 58.29 6/15/11 44.91 42.15 2,21 2.76 57.95 9/26/11 44.91 42.32 2.21 2,59 57.78 11/13/12 45.04 41.89 -2-34 3.15 58.21 9/13/13 45,04 40.97 -2.34 4.07 59.13 2/21/14 45.04 41.77 -2.34 3.27 58.33 8/29/14 45.04 40.88 -2.34 4.16 59.22 2/26/15 45.04 41.51 -2.34 3.53 58.59 8/7/15 45.04 42.00 -2.34 3,04 58.10 2/17/16 45.04 41.34 -2.34 3,70 58.76 8/10/16 45.04 40.91 -2,34 4.13 59.19 2/14/17 45.04 41.50 -2.34 3.54 58.60 8/3/17 45.04 41,41 -2.34 3.63 58,69 2/5/18 45.04 42.23 -2.34 2.81 57,87 BJ30118 45.04 42.11 2.34 2.93 57,99 2/18/19 45.04 40.62 -2.34 4.42 59.48 8/15/19 45.04 39.23 -2.34 5.81 60.87 2/7/20 45.04 39-52 2.34 5.52 60.58 8/26/20 NS - Could not access to well, property contained several pre -bull shed structures for sale onsite and one was p1111Iaced over MW-5. MW-6 7/17/1997 99.47 2 43 Unknown 10/22/99 NA 42.75 NA NA 56.72 7/7/00 NA 40.15 NA NA 59.32 FP 5/8/01 NA 42.00 NA NA 57.47 10/17101 NA 42.14 NA NA 57.33 6/28/02 NA DRY NA NA <56.47 11/8/07 NA 42.80 NA NA 56.67 5/13/09 43,18 42.82 -0.18 0.36 56,65 MW-6A 6/7/2002 99.44 2 55 Unknown 6/28/02 NA 43.08 NA NA 56.36 3/24/03 NA 42.64 NA NA 56.80 11/8/07 NA 42.93 NA NA 56.51 9/4/08 NA 43.94 NA NA 55.5{] 5/13/09 54.65 43.34 0.35 11.31 56.10 9/13/10 54.65 42.05 0.35 12.60 57.39 2/24/11 54,65 42,88 0.35 11,77 56.56 hllps://shieldengineering1.sharepoinLcom/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kvvik Mart/Reports/September 2020 MR/Hist GW Elev Page 2 of 6 Table 2: Summary of Well Construction and Historical Groundwater Elevation Data 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Field Measurements Field Calculations Gauging Date Total Depth (feet) Depth to Groundwater (feet) Diff. Between As - built and Measured Total Depth (feet) Measured Water Column in Well (feet) Groundwater Elevation (feet) Well ID Date Installed Top of Casing Elevation (feet) Well Diameter (inches) As -built Depth P (feet) Screened Interval (feet) 11/13/12 1 54.65 42.82 0.35 11.83 56.62 9J13113 54.65 42.66 0.35 11.99 56.78 httpsl/shieldengineeringl.sha repoin C com/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kvvik Mart/Reporls/September 2020 MR/Hist GW Elev Page 3 of 6 Table 2: Summary of Well Construction and Historical Groundwater Elevation Data 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Well ID Date Installed Top of Casing Elevation (feet) Well Diameter (inches) As -built Depth P (feet) Screened Interval (feet) Field Measurements Field Calculations Gauging Date Total Depth (feet) Depth to Groundwater (feet) Diff. Between As - built and Measured Total Depth (feet) Measured Water Column in Well (feet) Groundwater Elevation (feet) MW-7 7/17/1997 98.73 2 43 Unknown 7/7/00 NA 40.65 NA NA 58.08 10/17/01 NA 42.00 NA NA 56.73 6/28/02 NA DRY NA NA <55.73 3/24/03 NA 42.07 NA NA 56.66 9/4/08 NA DRY NA NA <55.73 5/13/09 42.51 DRY 0.49 NA <56.22 11/13/12 42,51 DRY NA NA <56.22 9/13/13 42.51 42.12 0.49 0.39 <56.51 MW-8 7/18/1997 99.61 2 43 Unknown 10/22/99 NA 40.73 NA NA 58.88 7/7/00 NA 41.13 NA NA 58.48 5/8/01 NA 41.80 NA NA 57.73 10/17/01 NA 42.05 NA NA 57.56 6/28/02 NA DRY NA NA <56.61 11 /8/07 NA 42.84 NA NA 56.77 5/13/09 43.16 42.93 -0.16 0.23 56.68 2/26/15 Abandoned by NC DOT MW-8A 6/7/2002 99.46 2 55 Unknown 6128/02 NA 42.90 NA NA 56.56 3/24/03 NA 42.59 NA NA 56.87 11/8/07 NA 42.73 NA NA 56.73 9/4/08 NA 43.71 NA NA 55.75 5113/09 54.06 43.15 0.94 10.91 56.31 9/13/10 54.06 41.87 0.94 12.19 57.59 2/24/11 54.06 1 42.51 1 0.94 11.55 56.95 11/13/12 54.06 42.58 0.94 11.48 56.88 9/13J13 54.06 42.51 0.94 11.55 56.95 2/21/14 54.06 42.08 0.94 11.98 57.38 8/29/14 54.06 40.93 0.94 13.13 58.53 2/26/15 Abandoned by NCDOT MW-8AR 10/20/2015 99.58 2 50 40'-50' 10/20/15 50.38 42.45 -0.38 7,93 57.13 2/17/16 50.38 41.72 -0.38 8.66 57.86 8/10/16 50.38 41.07 -0.38 9.31 58.51 2/14/17 50.38 41.82 -0.38 8-56 57.76 8/3/17 50.38 41.88 -0.38 8.50 57.70 2/5/18 50.38 42.64 -0.38 7.74 56.94 8/30/18 50.38 42.49 -0.38 7.89 57.09 2/18/19 50,38 40.91 -0.38 9.47 58.67 8/15/19 50.38 39.39 -0.38 10.99 60.19 2/7/20 50.38 39.88 -0.38 10.50 59.70 8/26/20 50.38 38.76 -0.38 11.62 60.82 MW-9 8/28/1997 100.74 2 42.3 Unknown 7/7/00 NA 39.11 NA NA 61.63 5/8/01 NA 40.18 NA NA 60.56 10/17/01 NA 40.52 NA NA 60.22 6/28/02 NA 41.18 NA NA 59.56 3/24/03 NA 40.55 NA NA 60.19 9/4/08 Well not located 5/13/09 Well payed -over (uncovered 10130109) 10/30/09 41.72 40.98 0.58 1 0.74 59.76 2/26/15 Abandoned by NCDOT MW-9A 211012010 NM 2 50 30-50 2/15/10 50.01 40.64 -0.01 9.37 NA 11/13/12 50.01 41.30 -0.01 8.71 NA 9J13/13 50.01 41.51 -0.01 8.50 NA 2/26/15 Abandoned by NCDOT MW-9ARJ 1OF20/2015 102.45 2 52 42'-52' 10/20/15 5190 43.91 0.10 7.99 58.54 2/17/16 51.90 43.22 0.10 8.68 59.23 hllps://shieldengineefingl,sharepoint.com/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwik MarUReporls/September 2020 MR/Hisl GW Elev Page 4 of 6 Table 2: Summary of Well Construction and Historical Groundwater Elevation Data 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Proiect Number 1090060 Well ID Date Installed Top of Casing Elevation (feet) Well Diameter (inches) As -built Depth p (feet) Screened Interval (feet) Field Measurements Field Calculations Gauging Date Total Depth (feet) Depth to Groundwater (feet) Diff. Between As - built and Measured Total Depth (feet) Measured Water Column in Well (feet) Groundwater Elevation (feet) MW-10 8/28/1997 91.43 2 40 Unknown 10/22/99 NA 33.36 NA NA 58.07 7/7/00 NA 33.65 NA NA 57.78 5/8/01 NA 34.50 NA NA 56.93 10/17/01 NA 34.91 NA NA 56.52 6/28/02 NA 35.54 NA NA 55.89 3124/03 NA 34.97 NA NA 56.46 9/4/08 Well not located 5113/09 Well not located 11/13/12 Well not located, likely destroyed MW-11 Unknown 84.38 2 40 Unknown 7/7/00 NA 30.43 NA NA 53.95 5/13/09 Well not located 11/13/12 Well not located. Relydestro ed MW-12 Unknown 94.90 2 42 Unknown 578101 NA 38.09 NA NA 56.81 10/17/01 NA 38.48 NA NA 56.42 6/28/02 NA 39.09 NA NA 55.81 3/24/03 NA 38.68 NA NA 56.22 5/13/09 41,76 39.60 0.24 2.16 55.30 9113110 41.76 38.28 0.24 3.48 56.62 2/24/11 41.76 39.13 0.24 2.63 55.77 11/13/12 41.76 39.08 0.24 2.68 55.82 9/13/13 41.76 38,82 0.24 2.94 56.08 MW-13 Unknown 9981 2 43 Unknown 10/22/99 NA 40.98 NA NA 58.83 7/7/00 NA 41.36 NA NA 58.45 518/01 NA 42.20 NA NA 57.61 10/17/01 NA 42.09 NA NA 57.72 6/28/02 NA DRY NA NA <56.81 11 /7/07 NA 42.61 NA NA 57.20 5113./09 43.00 42.63 0.00 0.37 57.18 MW-13A 6/7/2002 99-78 2 55 Unknown 6?28102 NA 43.2-2 NA NA 56.56 3/24/03 NA 42.95 NA NA 56.83 11/8/07 NA 43.07 NA NA 56.71 914108 NA 44.08 NA NA 55.70 5/13/09 54.31 43.48 0.69 10.83 56.30 9/13/10 54.31 42.21 0.69 12.10 57.57 2/24/11 54.31 42.88 0.69 11.43 56.90 11/13/12 54.31 42.94 0.69 11.37 56.84 9/13/13 54.31 42.82 0.69 11.49 56.96 817/15 54.31 42.31 0.69 12.00 57.47 10/20/15 54.31 42.64 0.69 11.67 57.14 MW-14 Unknown 100.45 2 44.9 Unknown 7/7/00 NA 41.63 NA NA 58.82 5/8/01 NA 42.68 NA NA 57.77 10/17/01 NA 43.09 NA NA 57.36 3/24/03 NA 43.57 NA NA 56.88 9/4/08 Well not located 5/13/09 45.14 43.76 -024 1.38 56.69 9/13/10 45.14 42.49 -0.24 2.65 57.96 2124111 45.14 43.13 -024 2.01 57.32 10/10/12 45.14 42.86 -0.24 2.28 67.59 10/10/12 Well Abandoned MW-15 Unknown 99.58 2 41.65 Unknown 10122/99 NA 40.78 NA NA 58.80 717/00 NA 41.04 NA NA 58.54 5/8/01 NA 41.35 NA NA 58.23 10/17/01 NA 41.47 NA NA 58.11 11/8/07 NA 41.08 NA NA 58.50 5/13/09 41.56 DRY 0.09 NA <58.02 https://shieldengineeringt,sharepoinLcom/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwik MarUReporls/September 2020 MR/Hist GW Elev Page 5 of 6 Table 2: Summary of Well Construction and Historical Groundwater Elevation Data 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Well ID Date Installed Top of Casing Elevation (feet) Well Diameter (inches) As -built Depth P (feet) Screened Interval (feet) Field Measurements Field Calculations Gauging Date Total Depth (feet) Depth to Groundwater (feet) Diff. Between As - built and Measured Total Depth (feet) Measured Water Column in Well (feet) Groundwater Elevation (feet) MW-15A 6/7/2002 97.47 2 Unknown Unknown 6/28/02 NA 41.07 NA NA 56.40 3/24/03 NA 40.77 NA NA 56.70 9/4/08 Well not located 5/13/09 51.18 41.40 NA 9.78 56.07 9/13/10 51.18 40A3 NA 11.15 57.44 2/24/11 51,18 40,82 NA 10,36 56.65 11/13/12 1 51.18 40.30 NA 10.88 57.17 9/13/13 51.18 40.69 NA 10.49 56.78 2/21/14 51.18 40.26 NA 10.92 57.21 2/26/15 51.18 39.86 NA 11.32 57.61 2/17/16 51.18 39.79 NA 11.39 57.68 2/14/17 51.18 39.92 NA 11.26 57.55 8/3/17 51,18 39,95 NA 11.23 57.52 2/5118 51.18 40.71 NA 10.47 56.76 8/30/18 51.18 40.55 NA 10.63 56.92 2/18/19 51.18 38.95 NA 12.23 58.52 8/15/19 51.18 37.47 NA 13.71 60.00 2/7/2020- 8/26/2020 NS - Well blocked by Mud at 3' DW-1 712111997 99.73 99.65 2 50 Unknown 7/7/00 NA 38.84 NA NA 60.89 5/8/01 NA 39.85 NA NA 59.88 10/17/01 NA 40.11 NA NA 59.62 6/28/02 NA 40.47 NA NA 59.26 3/24/03 NA 39.60 NA NA 60.13 9/4/08 Well not located 5/13/09 Well paved -aver uncovered 10/30/09 10/30/09 54.25 40.33 -4.25 13,92 59.40 9/13/10 54.25 39.41 -4.25 14.84 60.32 9/13/10 Top of casing cut down 0.08' after gauging on 9/13/10 2/24/11 54.25 40.70 NA 13.55 58.95 11/13/12 54.25 41.78 NA 12.47 57.87 9/13/13 54.25 40.75 -4.25 13.50 58.90 2/21/14 54.25 40.61 -4.25 13.64 59.04 2/26/15 54.25 40.13 -4.25 14,12 59.52 2/17116 54.25 40.66 -4.25 13.69 58.99 2/14/17 54.25 40.45 -4.25 13.80 59.20 8/3/17 54.25 40.65 -4.25 13.60 59.00 2/5/18 54.25 40.90 -4.25 13-35 58.75 8/30/18 54.25 41.23 -4.25 13.02 58.42 2/18/19 54.25 39.86 -4.25 14.39 59.79 8/15/19 54.25 38.50 -4.25 15.75 61.15 2/4/20 54.25 38.74 -4.25 15.51 60.91 8/26/20 54,25 16.51 -4.25 37.74 83.14 DW-2 Unknown 89.63 2 55.00 Unknown 7/7/00 NA 32.57 NA NA 57.06 5/8/01 NA 39.45 NA NA 50.18 10/17/01 NA 33.78 NA NA 55.85 6/28/02 NA 38.43 NA NA 51.20 3/24/03 NA 33.67 NA NA 55.96 5/13/09 Well not located 11/13/12 Well not located, I i kely destroyed Notes: Top of Casing elevation based on arbitrary datum of 100 feet for MW-3. NM = Not Measured. NA = Data Not Available; data prior to 6/08/09 reported by others. FP = Free Product observed in well. hllpsl/shieldengineering 1. sharepoint. corn/sites/Projects/Shared Documen Is/Gen era l/200911090060-01 85 Kwk MarUReports/September 2020 MR/Hist GW Elev Page 6 of 6 Table 3: Summary of Analytical .Results - Groundwater Samples 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Analytical Method ---> EPA Method 6200B Benzene Toluene Ethyl- Total Naphthalene Methyl-tert- butyl ether Isopropylbenzene n-Propylbenzene Trichloroethene ,yl 4e 1,3,5- 1,2- roethane benzene Xylenes (MTBE) ether IPE)opyl ether(IPE) l Trimethylbenzene Trimethylbenzene (1.2- (1,2-DCA) Location Date Sampled u /L' ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L MW-4A 8/26/2020 97.4 599 251 806 25 596 7.2 13.7 NO ND 176 ND 40.7 MW-5 8/26/2020 INS - Could not access to well, property contained several pre -built shed structures for sale onsite and one was placed over MW-5. MW-8AR 8/26/2020 ND NO NO NO NO ND I NO I ND NO I NO NO NO NO MW-15A 8/26/2020 INS - Well blocked by Mud at T bekwvtop of casing, unable to bail DW-1 8/26/2020 ND NO ND NO NO 35.6 ND NO ND NO NO NO 1.7 WSW -RING 8/26/2020 NO ND NO ND NO 1.4 NO NO NO NO NO NO NO POWER CRANE Trip Blank 1 8/26/2020 NO ND NO ND NO NO NO NO NO NO NO ND ND 2L Standards4 1.0 600 600 500 6 20 70 70 70 3 400 400 0.4 GC1_5 5.000 260,000 84,500 85,500 6,000 20.000 70.000 25.000 30.000 3.000 28,500 25.000 400 voies 1. Micrograms per liter 2. ND = Not detected at or above laboratory method report limit 3. NS = Not Sampled 4. NR = Analysis Not Requested 5. NCDEO-North Carolina Administrative Code Title 15A Subchapter 2L Class GA Groundwater Standards 6. NCDEC-North Carolina Administrative Code Title 15A Subchapter 2L Standard for Risk -Based Maximum Gross Contamination Levels (GCL) for Groundwater 7. BOLD denoles concentrations above 15A NCAC 2L Standards 8. Shaded values denote concentrations above GCL Standards https://shieldengineeringl.sharepoint.com/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwik Mart/Reports/September 2020 MR/GW Results Page 1 of 1 Table 4: Summary of Historical Groundwater Analytical Results 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Analytical Method ---> EPA 602. 601/602 or 6200B Analyte-------> Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Methyl-tert- butyl ether (MTBE) Diisopropyl ether(IPE) 1,2-Dichloro ethane 2L Standard 1.0 600 600 500 6 20 70 0.4 GCL 5.000 260,000 1 84,500 85,500 6.000 20.000 70,000 400 Sample Location Date Sampled (ug/I) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) MW-1 12/15/00 4,990 4,700 675 2,530 NR 1 1,730 <250 NR 10/17/01 Dry 4/11/02 6,030 6,220 625 2,540 1 NR 1,720 425 NR 6/28J02 Dry MW-1A 6J30/02 76. ND ND ND NR 8,746 ND NR 3/24/03 13 <5.0 <1.0 <2.0 NR 12,000 6.0 NR 1118107 <1.0 <1.0 <1.0 <3.0 NR 4.7 <1.0 <1.0 9/4/08 <1.0 <1.0 <1_0 <1,0 NR 0.73 <1.0 <1.0 5/13/09 ND ND ND ND NR 1.4 ND NR 9/13/10 ND ND ND ND ND ND ND ND 2/24/11 ND ND ND ND ND ND ND ND 11/13/12 ND ND ND ND ND ND ND ND 9J13/13 ND ND ND ND ND ND ND ND MW-2 8/20/01 1 500 21,900 2,050 12,950 NR 10,500 <2,500 NR 4/11/02 10,00 15,400 1.740 8,900 NR 10,900 1.400 NR 3/24/03 <1.0 <5.0 <1.0 <2.0 NR <5.0 <5.0 NR 11/8/07 <1.0 <1,0 <1.0 <3.0 NR 2.2 <1.0 I <1.0 9/4/08 0.16 <1.0 <1.0 <1.0 NR 56 <1,0 1.2 5/13/09 ND ND ND ND NR 73.2 ND NR 9/13/10 ND ND ND ND ND 50.6 ND 3.7 2/24/11 ND ND ND ND ND 49.6 ND 3.0 11/13/12 ND ND ND ND ND 15 ND 1.1 9113J13 ND ND ND ND ND 4.3 ND ND MW-3 12/15/00 996 547 170 360 NR 2,100 285 NR 4111102 856 358 96 254 NR 1,230 330 NR 3/24/03 <1.0 <5.0 <1.0 <2.0 NR <5.0 <5.0 NR 11/8/07 <1.0 <1.0 <1.0 <3.0 NR 1.4 <1.0 <1.0 9/4/08 <1.0 <1.0 <1.0 <1.0 NR 4.0 <1.0 <1.0 5/13/09 ND ND ND ND NR ND ND NR 11/13/12 ND ND ND ND ND ND ND ND 9J13J13 ND ND ND ND ND ND ND ND MW-4 7/7100 Dry 12/15J00 2.8 <2.0 <1.0 <2.0 NR 524 39 NR 5/8/01 ❑ry 4/11/02 452 20 ND ND NR 428 84 NR 6/28/02 Dry hltps:Hshieldengineeringl.sharepoin Lcom/sites/Projects/Shared Documen ts/General/2009/1090060-01 85 Kwik MarUReports/September 2020 MR/Historical GW Results Page 1 of 6 hltpsAshieldeng Table 4: Summary of Historical Groundwater Analytical Results 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Analytical Method ---> EPA 602, 601/602 or 6200B Analyte----- --> Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Methyl-tert- butyl ether (MTBE) Diisopropyl ether (IPE) 1,2-Dichloro ethane 2L Standard 1.0 600 600 500 6 20 70 0.4 GCL 5,000 260,000 84,500 85.500 6.000 20.000 70,000 400 Sample Location Date Sampled (ug/I) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) MW-4A 6/30/02 21.4 88.5 27.2 133 NR 93.1 2.0 NR 3/24/03 32 67 8.3 68 NR 460 12 NR 11/8/07 11 112 13.7 13.4 NR 46.8 2.2 9.5 9/4/08 66 200 110 210 NR 84 3.3 19 5113/09 96.6 364 114 278 NR 45.7 9.5 NR 9713/10 194 608 304 874 7.3 127 4.6 30.1 2/24/11 81.6 399 134 397 1 ND 71.2 ND 12.1 11/13/12 95 394 176 518 4.1 96 2.1 11.3 9/13/13 101 395 191 557 5.8 143 3.1 15.3 2/21/14 102 424 208 613.2 ND 160 3.4 17.7 2J2&15 106 319 167 368.7 ND 218 3.8 19.5 2/17/16 77.1 221 156 356.6 5.6 517 8.2 36.7 2114J17 160 905 383 1,123 ND 1,140 14.5 71.3 8/3/17 86.8 761 185 624 ND 1.150 12A 68.5 2/5/18 79.6 560 149 346 ND 1,060 10-8 67.4 8/30/18 59.1 365 130 553 ND 876 10.4 54 2/18/19 33.4 171 72A 218 ND 779 8.1 41.6 8/15/19 40.7 254 85.8 292.E ND 803 9.5 48.8 217120 30.5 132 542 138A ND 689 7.4 41.8 8/26/20 97A 599 251 806 25 596 7.2 40.7 MW-5 12/15/00 <1.0 <1.0 <1.0 70 NR 16.7 <5.0 NR 4111102 1.7 ND 1.0 ND NR 6.8 1.5 NR 3/24/03 970 1,200 230 3,000 NR <1,000 110 NR 5/13/09 Well paved -over uncovered 10/30/09 10/30/09 945 421 445 2,280 272 3,810 67.7 526 9/13/10 516 163 493 2.700 382 2,640 71.5 543 2/24/11 1040 96.1 382 2120 312 2,710 49.0 362 6/15/11 1.020 2,600 175 4,220 314 1,520 31.7 254 9126J11 694 516 251 3,740 364 2,250 41 292 11/13/12 467 36.7 310 1,705,5 239 2,590 41.5 317 9/13/13 404 37.5 262 1.100.1 182 2,580 55.4 371 2/21/14 570 44.9 508 1,955.1 275 3 890 55.9 442 8/29/14 1,250 95.9 1020 3,757.0 581 4,960 70.6 639 2/26115 1,040 75.2 602 1,570 303 5,610 63.1 540 8/7/15 938 66.9 757 1,830 311 5,090 69.9 487 2117/16 568 33 345 562 235 4,720 53.7 407 8/10/16 1,360 56.3 503 677 311 6,680 80.9 630 2/14/17 2.990 229 1040 1.919.30 468 8,890 117 S32 8/3/17 1210 90 478 430 272 8,360 91 773 2/5/18 1,470 83 553 448 323 8,580 93 863 8/30./18 1,280 66.2 681 747 289 9,040 99 812 2/18/19 811 46.1 420 438 242 8,5190 81.9 632 8/15/19 1,220 54.4 440 459 ND 9 980 104 786 2/7/20 1,890 75.7 685 811 284 11,800 106 922 8/26/20 NS - Could not access to well, property contained several pre -built shed structures for sale onsite and one was placed over MW-5. MW-6 12/15/00 500 398 30 222 NR 568 324 NR 4/11/02 21.8 13 1.1 2.2 NR 591 59.8 NR 6/28/02 Dry MW-6A 6/30/02 ND ND ND ND NR 302 52.8 NR 3/24/03 <5.0 <25 <5.0 <10 NR 130 <25 NR 11/8/07 <1.0 <1.0 <1.0 <3.0 NR 0.81 1 0.22 5.4 9/4/08 <1.0 0.37 0.18 <1.0 NR <1.0 <1.0 6.5 5/13JD9 ND ND ND ND NR 110 13.4 NR 9/13AD ND ND ND ND ND . 2.6 20.5 2/24/11 ND ND ND ND ND 36.6 3.7 24.0 11/13/12 ND ND ND ND ND 101 8.1 47.9 9/13/13 ND ND ND ND ND 1 ND 7.4 eeringlsharepoi tcoWsilm"oj cls/Shared Do umenls/Gener 1/2009/109006 01 85 KWk Mall./Reports/Sept( mber 2020 MR Historical GW -esulls Page 2 of 6 Table 4: Summary of Historical Groundwater Analytical Results 85 Kivik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Analytical Method ---> EPA 602. 601/602 or 6200E Analyte-------> Benzene Toluene Ethyl- benzene Total Xylenes halerNaph thalene Methyl-tert- butyl ether (MTBE) ether IPE)opyl ether(IPE) hloro 1, ethane ethane 2L Standard 1.0 600 600 500 6 20 70 0.4 GCL 5.000 260,000 84,500 85.500 6,000 20.000 70,000 400 Sample Location Date Sampled (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) MW-7 12/15/00 975 <50 <50 <100 NR 2,580 <250 NR 4111/02 785 ND ND ND NR 765 155 NR 6/28102 Dry 9/4/08 Dry 5/13/09 Dry 11 /13/12 Dry 9/13/13 Dry MW-8 12/15/00 273 20 <10 73 NR 922 308 NR 4/11/02 2 640 100 125 690 NR 890 355 NR 6/28./02 Dry 2/26/15 ABANDONED BY NCDOT MW-BA 6/30/02 ND ND ND N❑ NR 7.0 ND NR 3/24/03 1.2 <5.0 <1.0 <2.0 NR 32 <5.0 NR 11/8/07 <1.0 <1.0 <1.0 <3.0 NR <1.0 <1.0 <1.0 9/4/08 <1.0 <1.0 <1.0 <1.0 NR <1.0 <1.0 <1.0 5/13/09 ND ND NO ND NR ND ND NR 9/13/10 ND NO ND ND ND ND ND ND 2/24/11 ND ND ND ND ND ND ND ND 11/13/12 ND ND ND ND ND ND ND ND 9/13/13 ND ND ND ND ND ND ND ND 2/21/14 ND ND ND ND ND ND ND ND 8129/14 ND ND ND ND ND NO ND ND 2/26/15 ABANDONED BY NCDOT MW-8AR 10/22/15 ND NO ND ND ND ND ND ND 2/17/16 ND ND NO ND ND 1.1 ND 0.58 8/10/16 ND ND ND ND ND 1.1 NO 0.63 2/14/17 ND ND ND ND ND 0.78 ND 0.6 8/3/17 ND ND ND ND ND ND NO 0.65 2/5/18 ND ND ND ND ND ND ND ND 8/30/18 ND ND ND ND ND ND ND ND 2/18/19 ND NO ND ND ND ND ND ND 8/15/19 ND ND ND ND ND ND ND ND 2/7/20 ND ND ND NO ND ND ND ND 8/26/20 ND ND ND ND ND ND ND ND MW-9 5/16/01 10.400 15400 2IIN 10,000 NR NR NR NR 4/11/02 8,730 11 100 2 800 13,400 NR 880 940 NR 5/13/09 Well aved-over uncovered 10/30/09 2/26/15 ABANDONED BY NCDOT MW-9A 2/15/10 ND ND ND ND ND ND ND ND 11/13/12 ND ND ND ND ND ND ND ND 9/13/13 ND ND ND ND ND ND ND ND 2/26/15 ABANDONED BYNCDOT MW-9AR 10/22/15 ND NO ND ND ND 1.1 ND 0.53 2/17/16 ND ND ND NO ND ND ND ND MW-10 6/13/01 56.2 39.7 5.1 26.7 NR 11.1 12 NR 4111102 458 350 48 238 NR 32 22 NR 3/24/03 7.5 <5.0 <10 <2.0 NR 26 12 NR 5/13/09 Well not located MW-11 6/13101 <10 <1.0 <1.0 <1.0 NR <10 <1.0 NR 4/11/02 NR NR ND ND NR ND ND NR 5/13/09 Well not located https://shieldengineeringl.sharepoint.com/sites/Projects/Shared Documenls/General/2009/1090060-01 85 KvA Mart/Reports/September 2020 MR/Historical GW Results Page 3 of 6 Table 4: Summary of Historical Groundwater Analytical Results 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility 1D Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Analytical Method ---> EPA 602. 601/602 or 6200B Analyte-------> Benzene Toluene Ethyl- benzene Total Xylenes halerNaph thalene Methyl-tert- butyl ether (MTBE) .. ether IPE) ether(IPE) 1, ethane ethane 2L Standard 1.0 600 600 500 6 20 70 0.4 GCL 5,000 260,000 84.500 1 85.500 1 6,000 1 20,000 70,000 400 Sample Loc lion Date Sampled (ug/I) (ug/I) (ug/I) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) MW-12 6/13/01 <1.0 <1.0 <1.0 <1.0 NR 1.2 1.3 NR 4111102. ND NO ND NO NR ND ND NR 5/13/09 ND NO ND NO NR 1.1 ND NR 9/13/10 ND ND ND NO ND NO ND NO 2/24/11 ND ND ND ND ND ND ND ND 11/13/12 NO ND ND NO ND NO ND ND 9/13/13 ND ND NO ND ND NO ND ND MW-13 6/13/01 12 300 1 28,800 2,120 9,950 NR 10,700 1,480 NR 6/28/02 Dry MW-13A 6/30/02 10.4 43.7 7.0 43.9 NR 30.4F13 NO NR 3/24/03 5.0 17 1.6 22.8 NR 53 NR 11/8/07 <1.0 0.39 <1.0 <3.0 NR 58.5 8.8 9/4/08 <1.0 <1.0 <1.0 <1.0 NR 22 4.4 5/13/09 ND ND ND ND NR 18 NR 9/13/10 ND ND ND ND ND 20.3 2.9 2/24/11 ND ND ND ND ND 12.4 ND 1.4 11113J12 ND ND ND NO ND 5.5 0.51 0.63 9/13/13 ND NO ND ND ND 4.1 0.59 0.57 8/7/15 0.83 ND ND ND ND 16.3 1 2 MW-14 6/13/01 1,940 6,200 1,090 4,930 NR 470 230 NR 4/11/02 4,180 7,020 1,380 5,120 NR 1,040 380 NR 5/13/09 ND ND ND ND NR ND ND NR 9/13/10 ND ND ND ND ND ND ND ND 2/24/11 ND ND ND ND ND ND ND ND 10/10/12 ND ND ND ND ND ND ND ND MW-15 12/4/01 <1.0 <1.0 <1.0 71.0 NR 8.3 <1.0 NR 4/11/02 ND ND ND ND NR 2.4 ND NR 5/13J09 Dry MW-15A 6/30/02 ND ND ND ND NR NO ND NR 3/24J03 <1.0 <5.0 <1.0 <2.0 NR <5,0 <5.0 NR 5/13/09 334 ND ND 39.1 NR 143 12.7 NR 9/13/10 184 ND ND 20.0 ND 129 14.0 75.6 2/24/11 164 NO ND 11.6 ND 111 8.6 46.2 11/13/12 115 ND ND 6.4 ND 93.5 8.4 47.3 9/13/13 83.8 ND ND 5.1 ND 78.8 10.5 49 2/21/14 73 ND ND 3.8 ND 82.3 9.3 45.5 2/26/15 66.5 ND ND 4.3 ND 72.2 8.6 44 2/17/16 31.3 ND ND 2.8 ND 59.3 7.3 35 2/14/17 23.6 ND ND 2.1 ND 47.1 &0 32 8/3/17 22.4 ND ND 1 ND 40.4 4.8 27.6 2/5A8 18.7 ND ND 0.82 ND 30.9 3.9 26.4 8130118 3.6 NO ND ND ND 19.6 2.8 17.4 2/18/19 8.6 ND ND 0.5 ND 14.6 1.7 1 9 8/15/19 12.4 ND ND 1.2 ND 16.9 2.1 11.7 2/7/2020 - 8/26/2020 INS - Well blocked by Mud at 3' below top of casing, unable to bail h[tps://shieldenginecringl.sharepoinLcom/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwik Marl/Reporls/Sep[ember 2020 MR/Historical GW Results Page 4 of 6 Table 4: Summary of Historical Groundwater Analytical Results 85 Kivik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Sbield Project Number 1090060 Analytical Method ---> EPA 602. 601/602 or 6200B Analyte-------> Benzene Toluene Ethyl- benzene Total Xylenes halerNaph thalene Methyl-tert- butyl ether (MTBE) .. ether IPE) ether(IPE) 1, ethane ethane 2L Standard 1.0 600 600 500 6 20 70 0.4 GCL 5,000 260,000 84,500 85,500 6 000 20,000 70,000 400 Sample Location Date Sam led (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) DW-1 12/15/00 <1.0 <1.0 <1.0 <2.0 NR <1.0 <5.0 NR 4/11/02 ND ND ND ND NR ND ND NR 5/13/09 Well aved-over uncovered 10/30/09 10/30/09 1.2 ND ND ND ND 555 4.8 11.9 9J13110 ND 1.3 ND 2.4 ND 153 1.5 5.5 2/24/11 ND 1.3 ND 2.4 ND 179 1.1 4.6 11/13/12 ND ND ND ND ND 107 0.85 2.3 9/13/13 ND ND ND ND ND 47.2 0.55 1.8 2/21/14 ND ND ND ND ND 46.3 ND 1.7 2/26/15 ND 1.7 1.2 5.9 ND 0.64 ND ND 2/17/16 ND ND ND ND ND 17.9 ND 1 2/14J17 0.88 1.3 2 8.68 ND 28.1 ND 1.7 8/3/17 ND 0.58 ND ND ND 24-8 ND 1.5 2/5/18 ND ND ND ND ND 28.9 ND 0.83 8/30/18 ND 0.91 ND 2.64 ND 27.4 ND 1.4 2/18/19 ND ND ND ND ND 30.1 ND 1.5 8115/19 ND ND ND ND ND 30.6 ND 1.3 217J20 ND ND ND ND ND 38.4 ND 1.6 8J26120 ND ND ND ND ND 35.6 ND 1.7 DW-2 No historical data prior to 5113109 available 5113J09 Well not located WSW -Ring 1118JO7 <1.0 <1.0 <1.0 <3.0 <1.0 0.58 <1.0 0.73 Power Crane 914J08 0.23 <1.0 <1.0 <1,0 <1.0 4.0 0.46 2.0 5/13/09 ND ND ND ND ND 6.0 ND 3.4 9/13/10 ND ND ND ND ND 6.2 ND 3.2 9/26/11 ND ND ND ND ND 8.3 ND 4.2 11/13/12 ND ND ND ND ND 8.9 0.7 3.3 9/13/13 ND ND ND ND ND 0.77 ND ND 2/21/14 ND ND ND ND ND 6.6 0.55 2.4 8/29/14 ND ND ND ND ND 6.6 055 ND 2/26/15 ND ND ND ND ND 8.6 0,65 2.8 8/7/15 ND ND ND ND ND 1.6 ND ND 8/10/16 ND ND ND ND ND 6-6 0-51 2.1 2/14/17 ND ND ND ND ND 3.9 ND 0.6 8/3117 ND ND ND ND ND 5.0 ND 1.8 2/5J18 ND ND ND ND ND ND ND ND 8/31/18 ND ND ND ND ND 18.1 1.1 4.8 2/18/19 ND ND ND ND ND 2.9 ND 0.6 8/15/19 ND ND ND ND ND 5.1 ND 1.2 2/7/20 NS - RING Power Crane had a power outage, unable to sample 8/26/20 ND ND ND ND ND 1,4 ND ND Mips://shieldengineeringl.sharepoinLcom/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwik Marl/Reports/September 2020 MR/Historical GW Results Page 5 of 6 Table 4: Summary of Historical Groundwater Analytical Results 85 Kwik Mart 5007 Davidson Highway Concord, Cabarrus County, North Carolina Facility ID Number 0-007471 Incident Number 13401 Shield Project Number 1090060 Analytical Method ---> EPA 602, 601/602 or 6200B Analyte-------> Benzene Toluene Ethyl- benzene Total Xylenes Naph- thalene Methyl-tert- butyl ether (MTBE) .. Dllsopropyl ether(IPE) 1,2-Dichloro ethane 2L Standard 1.0 600 600 500 6 20 70 0.4 GCL 5,000 260,000 84,500 85.500 6.000 20.000 70,000 400 Sample L.ocatinn Date Sampled (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) TRIP BLANK 10/30/09 ND ND NO ND ND ND ND NO 9/13/2010 ND ND ND ND ND ND NO NO 2/24/11 ND ND ND ND ND ND NO ND 6/15/11 ND ND ND ND ND ND ND ND 9/26/11 NO ND ND ND ND NO ND ND 11/13/12 NO ND ND ND ND ND NO ND 9113113 NO NO ND ND NO NO NO ND 2/21114 ND ND ND NO ND ND ND ND 8/29/14 ND NO ND ND ND NO NO NO 2/26/15 ND NO ND NO ND ND ND NO 8/7115 NR NR NR NR NR NR NR NR 2/14/17 ND ND ND ND ND ND NO ND 2/5/18 ND ND ND ND NO NO ND ND 8/30./18 ND ND NO NO ND ND ND NO 2/18/19 ND ND NO ND ND ND ND ND 8/15/19 ND ND ND ND ND ND ND ND 2/7/20 NO ND ND ND ND ND ND ND 8/26/20 NO NO ND ND ND ND ND ND Notes: ug/I = micrograms per liter ND = Not detected at or above laboratory method report limit NR = Analysis Not Requested or Not Reported NA = Data Not Available < = Less than the laboratory method report limit 2L Standard = NCDEQ-North Carolina Administrative Code Title 15A Subchapter 2L Class GA Groundwater Standards GCL = NCDEQ-North Carolina Administrative Code Title 15A Subchapter 2L Standard for Risk -Based Maximum Gross Contamination Levels for Groundwater ( GCL) A concentration of Methylene Chloride (4.1 ug/L) was reported in the 8/15/2019 TRIP BLANK sample. BOLD denotes concentrations above 15A NCAC 2L Standards Data prior to 5/13/2009 reported by others SHADED values denote concentrations above GCL stds https://shieldengineeringl,sharepoin6com/sites/Projects/Shared Documents/General/2009/1090060-01 85 Kwik Mart/Reports/September 2020 MR/Historical GW Results Page 6 of 6 ["AIR"I AM41 (��aceAnalyfical www.pacelabs.com September 08, 2020 Kevin Stachura Shield Engineering, Inc. 4301 Taggart Creek Road Charlotte, NC 28208 RE: Project: 85 Kwik Mart Pace Project No.: 92492788 Dear Kevin Stachura: Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Enclosed are the analytical results for sample(s) received by the laboratory on August 27, 2020. 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 = Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Amanda Payne amanda.payne@pacelabs.com (704)875-9092 Project Manager Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC, Page 1 of 21 _ �ac,eAnalytical" r www.pscelebs.cam Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: 85 Kwik Mart Pace Project No.: 92492788 Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 CERTIFICATIONS South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 VirginiaNELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full; without the written consent of Pace Analytical Services, LLC. Page 2 of 21 aceAnalj4ical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE ANALYTE COUNT Project: Pace Project No.: 85 Kwik Mart 92492788 Analytes Lab ID Sample ID Method Analysts Reported Laboratory 92492788001 MW-4A SM 6200B SAS 63 PASI-C 92492788002 MW-8AR SM 6200B SAS 63 PASI-C 92492788003 DW-1 SM 6200B SAS 63 PASI-C 92492788004 WSW -Ring Power SM 6200B SAS 63 PASI-C 92492788005 TRIP BLANK SM 6200B SAS 63 PASI-C 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. Page 3 of 21 -IacekalJfical www.pacDlabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: 85 Kwik Mart Pace Project No.: 92492788 Sample: MW-4A Lab ID: 92492788001 Collected: 08/26/20 11:20 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec-Butylbenzene tent-Butylbenzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Dibromochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1, 1 -Dichloroethene cis- 1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene cis- 1,3-Dichloropropene trans-1,3-Dichloropropene Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropyl benzene (Cumene) Methylene Chloride Methyl-tert-butyl ether Naphthalene n-Propylbenzene Styrene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane Analytical Method: SM 6200B Pace Analytical Services - Charlotte 97.4 ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 40.7 ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 7.2 ug/L 251 ug/L ND ug/L 13.7 ug/L ND ug/L 596 ug/L 25.0 ug/L ND ug/L ND ug/L ND ug/L ND ug/L 2.5 5 09/04/20 21:30 71-43-2 2.5 5 09/04/20 21:30 108-86-1 2.5 5 09/04/20 21:30 74-97-5 2.5 5 09/04/20 21:30 75-27-4 2.5 5 09/04/20 21:30 75-25-2 25.0 5 09/04/20 21:30 74-83-9 2.5 5 09/04/20 21:30 104-51-8 2.5 5 09/04/20 21:30 135-98-8 2.5 5 09/04/20 21:30 98-06-6 2.5 5 09/04/20 21:30 56-23-5 2.5 5 09/04/20 21:30 108-90-7 5.0 5 09/04/20 21:30 75-00-3 2.5 5 09/04/20 21:30 67-66-3 5.0 5 09/04/20 21:30 74-87-3 2.5 5 09/04/20 21:30 95-49-8 2.5 5 09/04/20 21:30 106-43-4 5.0 5 09/04/20 21:30 96-12-8 2.5 5 09/04/20 21:30 124-48-1 2.5 5 09/04/20 21:30 106-93-4 2.5 5 09/04/20 21:30 74-95-3 2.5 5 09/04/20 21:30 95-50-1 2.5 5 09/04/20 21:30 541-73-1 2.5 5 09/04/20 21:30 106-46-7 2.5 5 09/04/20 21:30 75-71-8 2.5 5 09/04/20 21:30 75-34-3 2.5 5 09/04/20 21:30 107-06-2 2.5 5 09/04/20 21:30 75-35-4 2.5 5 09/04/20 21:30 156-59-2 2.5 5 09/04/20 21:30 156-60-5 2.5 5 09/04/20 21:30 78-87-5 2.5 5 09/04/20 21:30 142-28-9 2.5 5 09/04/20 21:30 594-20-7 2.5 5 09/04/20 21:30 563-58-6 2.5 5 09/04/20 21:30 10061-01-5 2.5 5 09/04/20 21:30 10061-02-6 2.5 5 09/04/20 21:30 108-20-3 2.5 5 09/04/20 21:30 100-41-4 10.0 5 09/04/20 21:30 87-68-3 2.5 5 09/04/20 21:30 98-82-8 10.0 5 09/04/20 21:30 75-09-2 2.5 5 09/04/20 21:30 1634-04-4 10.0 5 09/04/20 21:30 91-20-3 2.5 5 09/04/20 21:30 103-65-1 2.5 5 09/04/20 21:30 100-42-5 2.5 5 09/04/20 21:30 630-20-6 2.5 5 09/04/20 21:30 79-34-5 REPORT OF LABORATORY ANALYSIS M1 M1 This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 4 of 21 Pace Analytical Services, LLC Kincey Ave. te 100 aceArraly teal ® 9800Hunte sville, NC1280778 www.pacolabs.com (704)875-9092 ANALYTICAL RESULTS Project: 85 Kwik Mart Pace Project No.: 92492788 Sample: MW-4A Lab ID: 92492788001 Collected: 08/26/20 11:20 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Analytical Method: SM 6200B Pace Analytical Services - Charlotte Tetrachloroethene ND ug/L 2.5 5 09/04/20 21:30 127-18-4 Toluene 599 ug/L 2.5 5 09/04/20 21:30 108-88-3 1,2,3-Trichlorobenzene ND ug/L 10.0 5 09/04/20 21:30 87-61-6 1,2,4-Trichlorobenzene ND ug/L 10.0 5 09/04/20 21:30 120-82-1 1,1,1-Trichloroethane ND ug/L 2.5 5 09/04/20 21:30 71-55-6 1,1,2-Trichloroethane ND ug/L 2.5 5 09/04/20 21:30 79-00-5 Trichloroethene ND ug/L 2.5 5 09/04/20 21:30 79-01-6 Trichlorofluoromethane ND ug/L 5.0 5 09/04/20 21:30 75-69-4 1,2,3-Trichloropropane ND ug/L 2.5 5 09/04/20 21:30 96-18-4 1,2,4-Trimethylbenzene 176 ug/L 2.5 5 09/04/20 21:30 95-63-6 1,3,5-Trimethylbenzene ND ug/L 2.5 5 09/04/20 21:30 108-67-8 M1 Vinyl chloride ND ug/L 5.0 5 09/04/20 21:30 75-01-4 m&p-Xylene 620 ug/L 5.0 5 09/04/20 21:30 179601-23-1 o-Xylene 186 ug/L 2.5 5 09/04/20 21:30 95-47-6 Surrogates 1,2-Dichloroethane-d4 (S) 101 % 70-130 5 09/04/20 21:30 17060-07-0 4-Bromofluorobenzene (S) 98 % 70-130 5 09/04/20 21:30 460-00-4 Toluene-d8 (S) 100 % 70-130 5 -09/04/20 21:30 2037-26-5 Date: 09/08/2020 04:59 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 5 of 21 I .PaceAnal rail' www.pacela s.com f ANALYTICAL RESULTS Project: 85 Kvvik Mart Pace Project No.: 92492788 Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Sample: MW-8AR Lab ID: 92492788002 Collected: 08/26/20 11:30 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec-Butylbenzene tert-Butyl benzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane DibroMochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans- 1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene cis-1,3-Dichloropropene trans- 1,3-Dichloropropene Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) Methylene Chloride Methyl-tert-butyl ether Naphthalene n-Propylbenzene Styrene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 0.50 1 09/04/20 17:22 71-43-2 0.50 1 09/04/20 17:22 108-86-1 0.50 1 09/04/20 17:22 74-97-5 0.50 1 09/04/20 17:22 75-27-4 0.50 1 09/04/20 17:22 75-25-2 5.0 1 09/04/20 17:22 74-83-9 0.50 1 09/04/20 17:22 104-51-8 0.50 1 09/04/20 17:22 135-98-8 0.50 1 09/04/20 17:22 98-06-6 0.50 1 09/04/20 17:22 56-23-5 0.50 1 09/04/20 17:22 108-90-7 1.0 1 09/04/20 17:22 75-00-3 0.50 1 09/04/20 17:22 67-66-3 1.0 1 09/04/20 17:22 74-87-3 0.50 1 09/04/20 17:22 95-49-8 0.50 1 09/04/20 17:22 106-43-4 1.0 1 09/04/20 17:22 96-12-8 0.50 1 09/04/20 17:22 124-48-1 0.50 1 09/04/20 17:22 106-93-4 0.50 1 09/04/20 17:22 74-95-3 0.50 1 09/04/20 17:22 95-50-1 0.50 1 09/04/20 17:22 541-73-1 0.50 1 09/04/20 17:22 106-46-7 0.50 1 09/04/20 17:22 75-71-8 0.50 1 09/04/20 17:22 75-34-3 0.50 1 09/04/20 17:22 107-06-2 0.50 1 09/04/20 17:22 75-35-4 0.50 1 09/04/20 17:22 156-59-2 0.50 1 09/04/20 17:22 156-60-5 0.50 1 09/04/20 17:22 78-87-5 0.50 1 09/04/20 17:22 142-28-9 0.50 1 09/04/20 17:22 594-20-7 0.50 1 09/04/20 17:22 563-58-6 0.50 1 09/04/20 17:22 10061-01-5 0.50 1 09/04/20 17:22 10061-02-6 0.50 1 09/04/20 17:22 108-20-3 0.50 1 09/04/20 17:22 100-41-4 2.0 1 09/04/20 17:22 87-68-3 0.50 1 09/04/20 17:22 98-82-8 2.0 1 09/04/20 17:22 75-09-2 0.50 1 09/04/20 17:22 1634-04-4 2.0 1 09/04/20 17:22 91-20-3 0.50 1 09/04/20 17:22 103-65-1 0.50 1 09/04/20 17:22 100-42-5 0.50 1 09/04/20 17:22 630-20-6 0.50 1 09/04/20 17:22 79-34-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 6 of 21 Pace Analytical Services, LLC _ aceAnalytical 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 www.pacelabs.com (704)875-9092 ANALYTICAL RESULTS Project: 85 Kwik Mart Pace Project No.: 92492788 Sample: MW-8AR Parameters Lab ID: 92492788002 Collected: 08/26/20 11:30 Results Units Report Limit DF Received: 08/27/20 11:45 Matrix: Water Prepared Analyzed CAS No. Qual 6200B MSV Analytical Method: SM 6200B Pace Analytical Services - Charlotte Tetrachloroethene ND ug/L 0.50 1 09/04/20 17:22 127-18-4 Toluene ND ug/L 0.50 1 09/04/20 17:22 108-88-3 1,2,3-Trichlorobenzene ND ug/L 2.0 1 09/04/20 17:22 87-61-6 1,2,4-Trichlorobenzene ND ug/L 2.0 1 09/04/20 17:22 120-82-1 1,1,1-Trichloroethane ND ug/L 0.50 1 09/04/20 17:22 71-55-6 1,1,2-Trichloroethane ND ug/L 0.50 1 09/04/20 17:22 79-00-5 Trichloroethene ND ug/L 0.50 1 09/04/20 17:22 79-01-6 Trichlorofluoromethane ND ug/L 1.0 1 09/04/20 17:22 75-69-4 1,2,3-Trichloropropane ND ug/L 0.50 1 09/04/20 17:22 96-18-4 1,2,4-Trimethylbenzene ND ug/L 0.50 1 09/04/20 17:22 95-63-6 1,3,5-Trimethylbenzene ND ug/L 0.50 1 09/04/20 17:22 108-67-8 Vinyl chloride ND ug/L 1.0 1 09/04/20 17:22 75-01-4 m&p-Xylene ND ug/L 1.0 1 09/04/20 17:22 179601-23-1 o-Xylene ND ug/L 0.50 1 09/04/20 17:22 95-47-6 Surrogates 1,2-Dichloroethane-d4 (S) 99 % 70-130 1 09/04/20 17:22 17060-07-0 4-Bromofluorobenzene (S) 103 % 70-130 1 09/04/20 17:22 460-00-4 Toluene-d8 (S) 102 % 70-130 1 09/04/20 17:22 2037-26-5 Date: 09/08/2020 04:59 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 7 of 21 ,�aceAnalytical www.paeDiabs.com ANALYTICAL RESULTS Project: 85 Kwik Mart Pace Project No.: 92492788 Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Sample: DW-1 Lab ID: 92492788003 Collected: 08/26/20 11:40 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Dibromochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis- 1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene cis- 1,3-Dichloropropene trans-1,3-Dichloropropene Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) Methylene Chloride Methyl-tert-butyl ether Naphthalene n-Propylbenzene Styrene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 1.7 ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 35.6 ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 0.50 1 09/04/20 17:40 71-43-2 0.50 1 09/04/20 17:40 108-86-1 0.50 1 09/04/20 17:40 74-97-5 0.50 1 09/04/20 17:40 75-27-4 0.50 1 09/04/20 17:40 75-25-2 5.0 1 09/04/20 17:40 74-83-9 0.50 1 09/04/20 17:40 104-51-8 0.50 1 09/04/20 17:40 135-98-8 0.50 1 09/04/20 17:40 98-06-6 0.50 1 09/04/20 17:40 56-23-5 0.50 1 09/04/20 17:40 108-90-7 1.0 1 09/04/20 17:40 75-00-3 0.50 1 09/04/20 17:40 67-66-3 1.0 1 09/04/20 17:40 74-87-3 0.50 1 09/04/20 17:40 95-49-8 0.50 1 09/04/20 17:40 106-43-4 1.0 1 09/04/20 17:40 96-12-8 0.50 1 09/04/20 17:40 124-48-1 0.50 1 09/04/20 17:40 106-93-4 0.50 1 09/04/20 17:40 74-95-3 0.50 1 09/04/20 17:40 95-50-1 0.50 1 09/04/20 17:40 541-73-1 0.50 1 09/04/20 17:40 106-46-7 0.50 1 09/04/20 17:40 75-71-8 0.50 1 09/04/20 17:40 75-34-3 0.50 1 09/04/20 17:40 107-06-2 0.50 1 09/04/20 17:40 75-35-4 0.50 1 09/04/20 17:40 156-59-2 0.50 1 09/04/20 17:40 156-60-5 0.50 1 09/04/20 17:40 78-87-5 0.50 1 09/04/20 17:40 142-28-9 0.50 1 09/04/20 17:40 594-20-7 0.50 1 09/0412017:40 563-58-6 0.50 1 09/04/20 17:40 10061-01-5 0.50 1 09/04/20 17:40 10061-02-6 0.50 1 09/04/20 17:40 108-20-3 0.50 1 09/04/20 17:40 100-41-4 2.0 1 09/04/20 17:40 87-68-3 0.50 1 09/04/20 17:40 98-82-8 2.0 1 09/04/20 17:40 75-09-2 0.50 1 09/04/20 17:40 1634-04-4 2.0 1 09/04/20 17:40 91-20-3 0.50 1 09/04/20 17:40 103-65-1 0.50 1 09/04/20 17:40 100-42-5 0.50 1 09/04/20 17:40 630-20-6 0.50 1 09/04/20 17:40 79-34-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC, Page 8 of 21 _ aceAnalytical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: 85 Kvvik Mart Pace Project No.: 92492788 Sample: DW-1 Lab ID 92492788003 Collected: 08/26/20 11:40 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane 1,2,3-Trichloropropane 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Vinyl chloride m&p-Xylene o-Xylene Surrogates 1,2-Dichloroethane-d4 (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) Date: 09/08/2020 04:59 PM Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 101 % 105 % 100 % 0.50 1 09/04/20 17:40 127-18-4 0.50 1 09/04/20 17:40 108-88-3 2.0 1 09/04/20 17:40 87-61-6 2.0 1 09/04/20 17:40 120-82-1 0.50 1 09/04/20 17:40 71-55-6 0.50 1 09/04/20 17:40 79-00-5 0.50 1 09/04/20 17:40 79-01-6 1.0 1 09/04/20 17:40 75-69-4 0.50 1 09/04/20 17:40 96-18-4 0.50 1 09/04/20 17:40 95-63-6 0.50 1 09/04/20 17:40 108-67-8 1.0 1 09/04/20 17:40 75-01-4 1.0 1 09/04/20 17:40 179601-23-1 0.50 1 09/04/20 17:40 95-47-6 70-130 1 09/04/20 17:40 17060-07-0 70-130 1 09/04/20 17:40 460-00-4 70-130 1 09/04/20 17:40 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 9 of 21 �aceAnalyfical www.pacelabs.cem Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: 85 Kwik Mart Pace Project No: 92492788 Sample: WSW -Ring Power Lab ID: 92492788004 Collected: 08/26/20 12:05 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Dibromochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene cis- 1,3-Dichloropropene trans- 1,3-Dichloropropene Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) Methylene Chloride Methyl-tert-butyl ether Naphthalene n-Propylbenzene Styrene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 0.52 ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 1.4 ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 0.50 1 09/04/20 17:57 71-43-2 0.50 1 09/04/20 17:57 108-86-1 0.50 1 09/04/20 17:57 74-97-5 0.50 1 09/04/20 17:57 75-27-4 0.50 1 09/04/20 17:57 75-25-2 5.0 1 09104/2017:57 74-83-9 0.50 1 09/04/20 17:57 104-51-8 0.50 1 09/04/20 17:57 135-98-8 0.50 1 09/04/20 17:57 98-06-6 0.50 1 09/04/20 17:57 56-23-5 0.50 1 09/04/20 17:57 108-90-7 1.0 1 09/04/20 17:57 75-00-3 0.50 1 09/04/20 17:57 67-66-3 1.0 1 09/04/20 17:57 74-87-3 0.50 1 09/04/20 17:57 95-49-8 0.50 1 09/04/20 17:57 106-43-4 1,0 1 09/04/20 17:57 96-12-8 0.50 1 09/04/20 17:57 124-48-1 0.50 1 09/04/20 17:57 106-93-4 0.50 1 09/04/20 17:57 74-95-3 0.50 1 09/04/20 17:57 95-50-1 0.50 1 09/04/20 17:57 541-73-1 0.50 1 09/04/20 17:57 106-46-7 0.50 1 09/04/20 17:57 75-71-8 0.50 1 09/04/20 17:57 75-34-3 0.50 1 09/04/20 17:57 107-06-2 0.50 1 09/04/20 17:57 75-35-4 0.50 1 09/04/20 17:57 156-59-2 0.50 1 09/04/20 17:57 156-60-5 0.50 1 09/04/20 17:57 78-87-5 0.50 1 09/04/20 17:57 142-28-9 0.50 1 09/04/20 17:57 594-20-7 0.50 1 09/04/20 17:57 563-58-6 0.50 1 09/04/20 17:57 10061-01-5 0.50 1 09/04/20 17:57 10061-02-6 0.50 1 09/04/20 17:57 108-20-3 0.50 1 09/04/20 17:57 100-41-4 2.0 1 09/04/20 17:57 87-68-3 0.50 1 09/04/20 17:57 98-82-8 2.0 1 09/04/20 17:57 75-09-2 0.50 1 09/04/20 17:57 1634-04-4 2.0 1 09/04/20 17:57 91-20-3 0.50 1 09/04/20 17:57 103-65-1 0.50 1 09/04/20 17:57 100-42-5 0.50 1 09/04/20 17:57 630-20-6 0.50 1 09/04/20 17:57 79-34-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 10 of 21 ace Analytical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: 85 Kwik Mart Pace Project No.: 92492788 Sample: WSW -Ring Power Lab ID: 92492788004 Collected: 08/26/20 12:05 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane 1,2, 3-Trich loropropane 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Vinyl chloride m&p-Xylene o-Xylene Surrogates 1,2-Dichloroethane-d4 (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) Date: 09/08/2020 04:59 PM Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 100 % 101 % 102 % 0.50 1 09/04/20 17:57 127-18-4 0.50 1 09/04/20 17:57 108-88-3 2.0 1 09/04/20 17:57 87-61-6 2.0 1 09/04/20 17:57 120-82-1 0.50 1 09/04/20 17:57 71-55-6 0.50 1 09/04/20 17:57 79-00-5 0.50 1 09/04/20 17:57 79-01-6 1.0 1 09/04/20 17:57 75-69-4 0.50 1 09/04/20 17:57 96-18-4 0.50 1 09/04/20 17:57 95-63-6 0.50 1 09/04/20 17:57 108-67-8 1.0 1 09/04/20 17:57 75-01-4 1.0 1 09/04/20 17:57 179601-23-1 0.50 1 09/04/20 17:57 95-47-6 70-130 1 09/04/20 17:57 17060-07-0 70-130 1 09/04/20 17:57 460-00-4 70-130 1 09/04/20 17:57 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC_ Page 11 of 21 ace Analytical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: 85 Kwik Mart Pace Project No.: 92492788 Sample: TRIP BLANK Parameters 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec -Butyl benzene tert-Butylbenzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Dibromochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis- 1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene cis-1,3-Dichloropropene trans- 1,3-Dichloropropene Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) Methylene Chloride Methyl-tert-butyl ether Naphthalene n-Propylbenzene Styrene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane ANALYTICAL RESULTS Lab ID: 92492788005 Collected: 08/26/20 00:00 Received: 08/27/20 11:45 Matrix: Water Results Units Report Limit DF Prepared Analyzed CAS No. Qual Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L ND ug/L 0.50 1 09/04/20 17:04 71-43-2 0.50 1 09/04/20 17:04 108-86-1 0.50 1 09/04/20 17:04 74-97-5 0.50 1 09/04/20 17:04 75-27-4 0.50 1 09/04/20 17:04 75-25-2 5.0 1 09/04/20 17:04 74-83-9 0.50 1 09/04/20 17:04 104-51-8 0.50 1 09/04/20 17:04 135-98-8 0.50 1 09/04/20 17:04 98-06-6 0.50 1 09/04/20 17:04 56-23-5 0.50 1 09/04/20 17:04 108-90-7 1.0 1 09/04/20 17:04 75-00-3 0.50 1 09/04/20 17:04 67-66-3 1.0 1 09/04/20 17:04 74-87-3 0.50 1 09/04/20 17:04 95-49-8 0.50 1 09/04/20 17:04 106-43-4 1.0 1 09/04/20 17:04 96-12-8 0.50 1 09/04/20 17:04 124-48-1 0.50 1 09/04/20 17:04 106-93-4 0.50 1 09/04/20 17:04 74-95-3 0.50 1 09/04/20 17:04 95-50-1 0.50 1 09/04/20 17:04 541-73-1 0.50 1 09/04/20 17:04 106-46-7 0.50 1 09/04/20 17:04 75-71-8 0.50 1 09/04/20 17:04 75-34-3 0.50 1 09/04/20 17:04 107-06-2 0.50 1 09/04/20 17:04 75-35-4 0.50 1 09/04/20 17:04 156-59-2 0.50 1 09/04/20 17:04 156-60-5 0.50 1 09/04/20 17:04 78-87-5 0.50 1 09/04/20 17:04 142-28-9 0.50 1 09/04/20 17:04 594-20-7 0.50 1 09/04/20 17:04 563-58-6 0.50 1 09/04/20 17:04 10061-01-5 0.50 1 09/04/20 17:04 10061-02-6 0.50 1 09/04/20 17:04 108-20-3 0.50 1 09/04/20 17:04 100-41-4 2.0 1 09/04/20 17:04 87-68-3 0.50 1 09/04/20 17:04 98-82-8 2.0 1 09/04/20 17:04 75-09-2 0.50 1 09/04/20 17:04 1634-04-4 2.0 1 09/04/20 17:04 91-20-3 0.50 1 09/04/20 17:04 103-65-1 0.50 1 09/04/20 17:04 100-42-5 0,50 1 09/04/20 17:04 630-20-6 0.50 1 09/04/20 17:04 79-34-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 12 of 21 Pace Analytical Services, LLC . aceAnalytical 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 11 www.pacelabs.com (704)875-9092 ANALYTICAL RESULTS Project: 85 Kwik Mart Pace Project No.: 92492788 Sample: TRIP BLANK Lab ID: 92492788005 Collected: 08/26/20 00:00 Received: 08/27/20 11:45 Matrix: Water Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual 6200B MSV Analytical Method: SM 6200B Pace Analytical Services - Charlotte Tetrachloroethene ND ug/L 0.50 1 09/04/20 17:04 127-18-4 Toluene ND ug/L 0.50 1 09/04/20 17:04 108-88-3 1,2,3-Trichlorobenzene ND ug/L 2.0 1 09/04/20 17:04 87-61-6 1,2,4-Trichlorobenzene ND ug/L 2.0 1 09/04/20 17:04 120-82-1 1,1,1-Trichloroethane ND ug/L 0.50 1 09/04/20 17:04 71-55-6 1,1,2-Trichloroethane ND ug/L 0.50 1 09/04/20 17:04 79-00-5 Trichloroethene ND ug/L 0.50 1 09/04/20 17:04 79-01-6 Tri ch I o rofl u o ro m eth a n e ND ug/L 1.0 1 09/04/20 17:04 75-69-4 1,2,3-Trichloropropane ND ug/L 0.50 1 09/04/20 17:04 96-18-4 1,2,4-Trimethylbenzene ND ug/L 0.50 1 09/04/20 17:04 95-63-6 1,3,5-Trimethylbenzene ND ug/L 0.50 1 09/04/20 17:04 108-67-8 Vinyl chloride ND ug/L 1.0 1 09/04/20 17:04 75-01-4 m&p-Xylene ND ug/L 1.0 1 09/04/20 17:04 179601-23-1 o-Xylene ND ug/L 0.50 1 09/04/20 17:04 95-47-6 Surrogates 1,2-Dichloroethane-d4 (S) 101 % 70-130 1 09/04/20 17:04 17060-07-0 4-Bromofluorobenzene(S) 104 % 70-130 1 09/04/20 17:04 460-00-4 Toluene-d8 (S) 101 < % 70-130 1 09/04/20 17:04 2037-26-5 Date: 09/08/2020 04:59 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 13 of 21 1 - aceAnal tical J www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: 85 Kwik Mart Pace Project No.: 92492788 QC Batch: 564650 Analysis Method: SM 6200B QC Batch Method: SM 6200B Analysis Description: 6200B MSV Laboratory: Pace Analytical Services - Charlotte Associated Lab Samples: 92492788001, 92492788002, 92492788003, 92492788004, 92492788005 METHOD BLANK: 2992928 Matrix: Water Associated Lab Samples: 92492788001, 92492788002, 92492788003, 92492788004, 92492788005 Blank Reporting Parameter Units Result Limit Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 09/04/20 14:07 1,1,1-Trichloroethane ug/L ND 0.50 09/04/20 14:07 1,1,2,2-Tetrachloroethane ug/L ND 0.50 09/04/20 14:07 1,1,2-Trichloroethane ug/L ND 0.50 09/04/20 14:07 1,1-Dichloroethane ug/L ND 0.50 09/04/20 14:07 1,1-Dichloroethene ug/L ND 0.50 09/04/20 14:07 1,1-Dichloropropene ug/L ND 0.50 09/04/20 14:07 1,2,3-Trichlorobenzene ug/L ND 2.0 09/04/20 14:07 1,2,3-Trichloropropane ug/L ND 0.50 09104/2014:07 1,2,4-Trichlorobenzene ug/L ND 2.0 09/04/20 14:07 1,2,4-Trimethylbenzene ug/L ND 0.50 09/04/20 14:07 1,2-Dibromo-3-chloropropane ug/L ND 1.0 09/04/20 14:07 1,2-Dibromoethane (EDB) ug/L ND 0.50 09/04/20 14:07 1,2-Dichlorobenzene ug/L ND 0.50 09/04/20 14:07 1,2-Dichloroethane ug/L ND 0.50 09/04/20 14:07 1,2-Dichloropropane ug/L ND 0.50 09/04/20 14:07 1,3,5-Trimethylbenzene ug/L ND 0.50 09/04/20 14:07 1,3-Dichlorobenzene ug/L ND 0.50 09/04/20 14:07 1,3-Dichloropropane ug/L ND 0.50 09/04/20 14:07 1,4-Dichlorobenzene ug/L ND 0.50 09/04/20 14:07 2,2-Dichloropropane ug/L ND 0.50 09/04/20 14:07 2-Chlorotoluene ug/L ND 0.50 09/04/20 14:07 4-Chlorotoluene ug/L ND 0.50 09/04/20 14:07 Benzene ug/L ND 0.50 09/04/20 14:07 Bromobenzene ug/L ND 0.50 09/04/20 14:07 Bromochloromethane ug/L ND 0.50 09/04/20 14:07 Bromodichloromethane ug/L ND 0.50 09/04/20 14:07 Bromoform ug/L ND 0.50 09/04/20 14:07 Bromomethane ug/L ND 5.0 09/04/20 14:07 Carbon tetrachloride ug/L ND 0.50 09/04/20 14:07 Chlorobenzene ug/L ND 0.50 09/04/20 14:07 Chloroethane ug/L ND 1.0 09/04/20 14:07 Chloroform ug/L ND 0.50 09/04/20 14:07 Chloromethane ug/L ND 1.0 09/04/20 14:07 cis- 1,2-Dichloroethene ug/L ND 0,50 09/04/20 14:07 cis-1,3-Dichloropropene ug/L ND 0.50 09/04/20 14:07 Dibromochloromethane ug/L ND 0.50 09/04/20 14:07 Dibromomethane ug/L ND 0.50 09/04/20 14:07 Dichlorodifluoromethane ug/L ND 0.50 09/04/20 14:07 Diisopropyl ether ug/L ND 0.50 09/04/20 14:07 Qualifiers 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 14 of 21 ace Analytical www.pacelabsxam Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: 85 Kwik Mart Pace Project No.: 92492788 METHOD BLANK: 2992928 Matrix: Water Associated Lab Samples: 92492788001, 92492788002, 92492788003, 92492788004, 92492788005 Blank Reporting Parameter Units Result Limit Analyzed Ethylbenzene ug/L ND 0.50 09/04/20 14:07 Hexachloro-1,3-butadiene ug/L ND 2.0 09/04/20 14:07 Isopropylbenzene (Cumene) ug/L ND 0.50 09/04/20 14:07 m&p-Xylene ug/L ND 1.0 09/04/20 14:07 Methyl-tert-butyl ether ug/L ND 0.50 09/04/20 14:07 Methylene Chloride ug/L ND 2.0 09/04/20 14:07 n-Butylbenzene ug/L ND 0.50 09/04/20 14:07 n-Propylbenzene ug/L ND 0.50 09/04/20 14:07 Naphthalene ug/L ND 2.0 09/04/20 14:07 o-Xylene ug/L ND 0.50 09/04/20 14:07 sec-Butylbenzene ug/L ND 0.50 09/04/20 14:07 Styrene ug/L ND 0.50 09/04/20 14:07 tert-Butylbenzene ug/L ND 0.50 09/04/20 14:07 Tetrachloroethene ug/L ND 0.50 09/04/20 14:07 Toluene ug/L ND 0.50 09/04/20 14:07 trans- 1,2-Dichloroethene ug/L ND 0.50 09/04/20 14:07 trans-1,3-Dichloropropene ug/L ND 0.50 09/04/20 14:07 Trichloroethene ug/L ND 0.50 09/04/20 14:07 Trichlorofluoromethane ug/L ND 1.0 09/04/20 14:07 Vinyl chloride ug/L ND 1.0 09/04/20 14:07 1,2-Dichloroethane-d4 (S) % 100 70-130 09/04/20 14:07 4-Bromofluorobenzene (S) % 102 70-130 09/04/20 14:07 Toluene-d8 (S) % 104 70-130 09/04/20 14:07 Qualifiers LABORATORY CONTROL SAMPLE: Parameter 2992929 Units Spike Conc. LCS Result LCS % Rec % Rec Limits 1,1,1,2-Tetrachloroethane ug/L 50 54.4 109 60-140 1,1,1-Trichloroethane ug/L 50 56.0 112 60-140 1,1,2,2-Tetrachloroethane ug/L 50 50.1 100 60-140 1,1,2-Trichloroethane ug/L 50 53.1 106 60-140 1,1-Dichloroethane ug/L 50 50.0 100 60-140 1,1-Dichloroethene ug/L 50 50.6 101 60-140 1,1-Dichloropropene ug/L 50 52.2 104 60-140 1,2,3-Trichlorobenzene ug/L 50 56.6 113 60-140 1,2,3-Trichloropropane ug/L 50 52.2 104 60-140 1,2,4-Trichlorobenzene ug/L 50 57.7 115 60-140 1,2,4-Trimethylbenzene ug/L 50 52.1 104 60-140 1,2-Dibromo-3-chloropropane ug/L 50 48.0 96 60-140 1,2-Dibromoethane (EDB) ug/L 50 52,9 106 60-140 1,2-Dichlorobenzene ug/L 50 51.7 103 60-140 1,2-Dichloroethane ug/L 50 45.6 91 60-140 1,2-Dichloropropane ug/L 50 50.9 102 60-140 1,3,5-Trimethylbenzene ug/L 50 52.5 105 60-140 Qualifiers 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 15 of 21 ace Analytical www.pacelabs.cam Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: 85 Kwik Mart Pace Project No.: 92492788 LABORATORY CONTROL SAMPLE: Parameter 2992929 Units Spike Conc. LCS Result LCS % Rec % Rec Limits Qualifiers 1,3-Dichlorobenzene ug/L 50 53.2 106 60-140 1,3-Dichloropropane ug/L 50 53.2 106 60-140 1,4-Dichlorobenzene ug/L 50 51.9 104 60-140 2,2-Dichloropropane ug/L 50 54.6 109 60-140 2-Chlorotoluene ug/L 50 51.4 103 60-140 4-Chlorotoluene ug/L 50 49.5 99 60-140 Benzene ug/L 50 49.2 98 60-140 Bromobenzene ug/L 50 51.1 102 60-140 Bromochloromethane ug/L 50 50.6 101 60-140 Bromodichloromethane ug/L 50 48.8 98 60-140 Bromoform ug/L 50 43.1 86 60-140 Bromomethane ug/L 50 62.2 124 60-140 Carbon tetrachloride ug/L 50 55.2 110 60-140 Chlorobenzene ug/L 50 48.2 96 60-140 Chloroethane ug/L 50 44.3 89 60-140 Chloroform ug/L 50 48.9 98 60-140 Chloromethane ug/L 50 41.7 83 60-140 cis- 1,2-Dichloroethene ug/L 50 48.6 97 60-140 cis-1,3-Dichloropropene ug/L 50 56.9 114 60-140 Dibromochloromethane ug/L 50 47.3 95 60-140 Dibromomethane ug/L 50 51.1 102 60-140 Dichlorodifluoromethane ug/L 50 41.6 83 60-140 Diisopropyl ether ug/L 50 48.7 97 60-140 Ethylbenzene ug/L 50 47.9 96 60-140 Hexachloro-1,3-butadiene ug/L 50 56.2 112 60-140 Isopropylbenzene (Cumene) ug/L 50 48.8 98 60-140 m&p-Xylene ug/L 100 97.8 98 60-140 Methyl-tert-butyl ether ug/L 50 51.1 102 60-140 Methylene Chloride ug/L 50 48.8 98 60-140 n-Butylbenzene ug/L 50 55.1 110 60-140 n-Propylbenzene ug/L 50 50.2 100 60-140 Naphthalene ug/L 50 55.4 111 60-140 o-Xylene ug/L 50 49.8 100 60-140 sec-Butylbenzene ug/L 50 52.3 105 60-140 Styrene ug/L 50 50.5 101 60-140 tert-Butyl benzene ug/L 50 44.8 90 60-140 Tetrachloroethene ug/L 50 50.1 100 60-140 Toluene ug/L 50 47.6 95 60-140 trans-1,2-Dichloroethene ug/L 50 50.8 102 60-140 trans-1,3-Dichloropropene ug/L 50 55.0 110 60-140 Trichloroethene ug/L 50 54.1 108 60-140 Trichlorofluoromethane ug/L 50 43.5 87 60-140 Vinyl chloride ug/L 50 43.9 88 60-140 1,2-Dichloroethane-d4 (S) % 97 70-130 4-Bromofluorobenzene (S) % 99 70-130 Toluene-d8 (S) % 98 70-130 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC, Page 16 of 21 (��aceAnalyfical www.pacelabs.com QUALITY CONTROL DATA Project: 85 Kwik Mart Pace Project No.: 92492788 Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2992930 MS 92492788001 Spike Parameter Units Result Conc. MSD Spike Conc. 2992931 MS Result MSD Result MS % Rec MSD % Rec % Rec Limits RPD Qual 1,1,1,2-Tetrachloroethane ug/L ND 100 100 106 108 106 108 60-140 2 1,1,1-Trichloroethane ug/L ND 100 100 123 123 123 123 60-140 0 1,1,2,2-Tetrachloroethane ug/L ND 100 100 109 108 109 108 60-140 1 1,1,2-Trichloroethane ug/L ND 100 100 113 118 113 118 60-140 4 1,1-Dichloroethane ug/L ND 100 100 115 117 115 117 60-140 1 1,1-Dichloroethene ug/L ND 100 100 121 123 121 123 60-140 2 1,1-Dichloropropene ug/L ND 100 100 121 120 121 120 60-140 0 1,2,3-Trichlorobenzene ug/L ND 100 100 103 113 103 113 60-140 9 1,2,3-Trichloropropane ug/L ND 100 100 113 107 113 107 60-140 6 1,2,4-Trichlorobenzene ug/L ND 100 100 110 116 110 116 60-140 5 1,2,4-Trimethylbenzene ug/L 176 100 100 297 296 120 120 60-140 0 1,2-Dibromo-3-chloropropane ug/L ND 100 100 91.4 91.5 91 92 60-140 0 1,2-Dibromoethane (EDB) ug/L ND 100 100 112 114 112 114 60-140 2 1,2-Dichlorobenzene ug/L ND 100 100 111 112 111 112 60-140 0 1,2-Dichloroethane ug/L 40.7 100 100 142 146 101 105 60-140 3 1,2-Dichloropropane ug/L ND 100 100 116 119 116 119 60-140 3 1,3,5-Trimethylbenzene ug/L ND 100 100 157 157 157 157 60-140 0 M1 1,3-Dichlorobenzene ug/L ND 100 100 112 113 112 113 60-140 1 1,3-Dichloropropane ug/L ND 100 100 116 114 116- 114 6,0-140 2 1,4-Dichlorobenzene ug/L ND 100 100 113 114 113 114 60-140 0 2,2-Dichloropropane ug/L ND 100 100 88.5 90.6 88 91 60-140 2 2-Chlorotoluene ug/L ND 100 100 123 114 123 114 60-140 7 4-Chlorotoluene ug/L ND 100 100 109 111 109 111 60-140 1 Benzene ug/L 97.4 100 100 208 213 110 116 60-140 2 Bromobenzene ug/L ND 100 100 112 112 112 112 60-140 0 Bromochlorom ethane ug/L ND 100 100 120 119 120 119 60-140 1 Bromodichloromethane ug/L ND 100 100 101 106 101 106 60-140 4 Bromoform ug/L ND 100 100 91.1 93.7 91 94 60-140 3 Bromomethane ug/L ND 100 100 119 130 119 130 60-140 9 Carbon tetrachloride ug/L ND 100 100 117 118 117 118 60-140 1 Chlorobenzene ug/L ND 100 100 107 107 107 107 60-140 0 Chloroethane ug/L ND 100 100 113 113 113 113 60-140 1 Chloroform ug/L ND 100 100 112 114 112 114 60-140 2 Chloromethane ug/L ND 100 100 96.5 95.3 96 95 60-140 1 cis-1,2-Dichloroethene ug/L ND 100 100 114 115 114 115 60-140 2 cis-1,3-Dichloropropene ug/L ND 100 100 111 117 111 117 60-140 6 Dibromochloromethane ug/L ND 100 100 101 103 101 103 60-140 2 Dibromomethane ug/L ND 100 100 110 113 110 113 60-140 2 Dichlorodifluoromethane ug/L ND 100 100 97.5 100 97 100 60-140 3 Diisopropyl ether ug/L 7.2 100 100 119 120 112 113 60-140 1 Ethylbenzene ug/L 251 100 100 347 345 96 94 60-140 1 Hexachloro-1,3-butadiene ug/L ND 100 100 99.9 110 100 110 60-140 9 Isopropylbenzene (Cumene) ug/L 13.7 100 100 121 120 107 106 60-140 1 m&p-Xylene ug/L 620 200 200 822 805 101 93 60-140 2 Methyl-tert-butyl ether ug/L 596 100 100 740 747 144 151 60-140 1 M1 Methylene Chloride ug/L ND 100 100 120 119 120 119 60-140 0 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 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, -LC. Page 17 of 21 _Fa' ceAnal�/tical J www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: 85 Kwik Mart Pace Project No.: 92492788 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2992930 MS 92492788001 Spike Parameter Units Result Conc. MSD Spike Conc. 2992931 MS Result MSD Result MS % Rec MSD % Rec % Rec Limits RPD Qual n-Butylbenzene ug/L ND 100 100 118 119 118 119 60-140 1 n-Propylbenzene ug/L ND 100 100 142 144 142 144 60-140 1 M1 Naphthalene ug/L 25.0 100 100 138 140 113 115 60-140 1 o-Xylene ug/L 186 100 100 292 286 106 100 60-140 2 sec-Butylbenzene ug/L ND 100 100 117 118 117 118 60-140 1 Styrene ug/L ND 100 100 110 111 110 111 60-140 1 tert-Butyl benzene ug/L ND 100 100 99.7 100 100 100 60-140 1 Tetrachloroethene ug/L ND 100 100 109 108 109 108 60-140 1 Toluene ug/L 599 100 100 692 708 93 109 60-140 2 trans-1,2-Dichloroethene ug/L ND 100 100 121 122 121 122 60-140 1 trans-1,3-Dichloropropene ug/L ND 100 100 104 112 104 112 60-140 7 Trichloroethene ug/L ND 100 100 123 125 123 125 60-140 2 Trichlorofluoromethane ug/L ND 100 100 106 109 106 109 60-140 3 Vinyl chloride ug/L ND 100 100 106 107 106 107 60-140 0 1,2-Dichloroethane-d4 (S) % 102 99 70-130 4-Bromofluorobenzene (S) % 99 99 70-130 Toluene-d8 (S) % 98 101 70-130 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 18 of 21 aceAnaoical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALIFIERS Project: 85 Kwik Mart Pace Project No.: 92492788 le7:119UNIN [e7pt;'? 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. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI -The NELAC Institute. ANALYTE QUALIFIERS M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/08/2020 04:59 PM without the written consent of Pace Analytical Services, LLC. Page 19 of 21 ceAnalytical www.pacelabs.cam Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: 85 Kwik Mart Pace Project No.: 92492788 Lab ID Sample ID QC Batch Method QC Batch Analytical Method 92492788001 MW-4A SM 6200B 564650 92492788002 MW-8AR SM 6200B 564650 92492788003 DW-1 SM 6200B 564650 92492788004 WSW -Ring Power SM 6200B 564650 92492788005 TRIP BLANK SM 6200B 564650 Date: 09/08/2020 04:59 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Analytical Batch Page 20 of 21 m 1 1,Z io I,Z a62d g N _ 7 un co v m Ln A W N ITEM # M -m m n D '3� ao c 49 _91 S n =2 N N a N z 4r7 A in _c •• a. 7 � 7 n A. �+.` �.f C• Co .-. � N S Nam+ y r-^�. 3 ro N m gq a n o a3i 0 rn F S o n i ; an .. _ a a FD�x s � v o p n ._.. m ik Z (N'v O CU O 11 ma a MATRIX CODE (see valid codes to left) I-7 a c o ra `f , SAMPLE TYPE (G=GRAB C=COMP) x Y m N O 0 � n r -r 3 � n 0 C) LD r m im z <- 0m C,a 3 m m m m m ❑ E� D Z re O 0 '�) a N ,-Lmj A ISAMPLE TEMP AT COLLECTION In � � � m a tI ♦� -„�,. •„� ,,,�. „�, xOF CONTAINERS s �'• m -0 v p N O O 'C^ v Unpreserved s H2SO4 O z jF m z n 0 o Rl Q O o HNO3 L m HCI n O 1 (D y O _ NaOH 9 C = s Na2S203 N Mz Methanol � Z � Other A Analysea cast Z y 6200E m YIN ❑ z Trip BLANK H r rn m (E N v a ��» O ��) 6 0 (D r •` N O 3 C7 p m ?i ro C, d _ m m m 7Y d c_y TEMP in C -'� H ' rP Residual Chlorine (YIN) n � z r a Received on Ice ti a (YIN) p a � usto y Sealed O Cooler (YIN) Samples Intact (YIN) Beverly, Trudy From: Beverly, Trudy Sent: Monday, October 5, 2020 2:00 PM To: 'Kevin Stachura' Subject: RE: [External] 85 Kwik Mart - Incident 13401 Received. Trudy Trudy Beverly, L.G. D IE �1 Hydrogeologist, Division of Waste Management _ North Carolina Department of Environmental Quality Q� LF Pa.rI n. of Lnorun,w 0MOT ` UST Section, Mooresville Regional Office 704.235.2182 (Office) Trudy. B everlykncdenn gov Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Office Mailing Address: 610 East Center Avenue, Suite 301 Mooresville, NC 28115 Branch's Underground Storage Tanks Website Address: ht_pt s://deg.nc.gov/about/divisions/waste-management/ust Branch's Above Ground Storage Tanks Website Address: hgps:Hdeg.nc.gov/about/divisions/waste-management/ust/ast-proeram INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES: httns://deu.nc. eov/about/divisions/waste-manaeement/waste-manaeement-rules-data/waste-manaeement-eis-mans File Review Procedures: ht_pt s://deq.nc.gov/about/divisions/waste-manaeement/ust/file-review-procedures#mooresville-regional-office ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche): httns: //dea.nc. eov/about/divisions/waste-manaeement/laserfiche Document Submittal & UST File Names for Laserfiche Policies: httys:Hfiles.nc.eov/nedea/Waste%2OMana2ement/DWM/UST[WhatsNew/Final-Electronic-Document-Submittal-Policy.odf httos:Hfiles.nc.gov/ncdeg/Waste%2OManagement/D WM/UST/Corrective%2OAction/UST%20file%20names%20for%2OLaserfiche.docx From: Kevin Stachura [mailto:KStachura@shieldengineering.com] Sent: Wednesday, September 30, 2020 5:14 PM To: Beverly, Trudy <trudy.beverly@ncdenr.gov> Subject: [External] 85 Kwik Mart - Incident 13401 • External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to m c nc. ov Hi Trudy, Attached is a copy of the 85 Kwik Mart monitoring report for the August 2020 sampling event. If you have any questions, please feel free to contact me. Thank you, Kevin Stachura Staff Geologist SHIELD ENGINEERING, INC. 4301 Taggart Creek Road Charlotte, NC 28208 (704) 394-6913 -office (704) 280-0787 -cell kstachura@shieldenRineering.com Shield Engineering is a common sense provider of Environmental, Engineering Design, Geotechnical Engineering and Risk Management Services. This message is intended only for the use of the addressee and may contain information that is PRIVILEGED and CONFIDENTIAL, and/or may contain ATTORNEY WORK PRODUCT. If you are not the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please erase all copies of the message and its attachments and notify us immediately. Thank you.