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Home My WebLink AboutWA-855_11512_CA_RPTS_20200114_MRP" ••• """ II I", "" CAb "'~ f\" ,~ f\ 0 " .. ","" ~ ~""~'N"'''S'''~'' </"'" ,',.\-.... r . "" c: ':':"" A. ~ GROUNDWATER MONITORING REPORT AINSLEY'S SERVICE CENTER 203 US HIGHWAY 64 CRESWELL, WASHINGTON COUNTY UST INCIDENT #: 11512 RISK CLASSIFICATION: HIGH (1900) Latitude: N 35.8724 Longitude: W -76.3927 PREPARED FOR ~ "/ ,v v .... 1' ~ ~Ol" \7\ i~1 SEAL ~\ \ Mr. Bryan Ainsley 2557 Newlands Road : I 5 :-,.~:~2 ~ (/)! J 262 .,-\~\ J 0 J Columbia, North Carolina 27925 ~ ~ \ ~A.l <t-i Telephone: (252) 796-1465 \ .. ~ "~~OLO~"""'cY-1 "'" ~}'~ ~ ........ " ... " ..\. ~ " .... """, \14 EILE~\:,,\~" ',,' ............ ,. PREPARED BY: Groundwater Management Associates, Inc. (Hydrogeology) 4300 Sapphire Court, Suite 100 Greenville, North Carolina 27834 Telephone: (252) 758-3310 (Engineering) 2205 Candun Drive, Suite A Apex, North Carolina 27523 Telephone: (919) 363-6310 North Carolina Corporate Engineering License #: C-08S4 North Carolina Corporate Geology License #: C-121 January 14, 2020 TABLE OF CONTENTS Page 1.0 SITE INFORMATION .............................................................................................. 1 1.1 Site Identification ........................................................................................... 1 1.2 Contact Information ........................................................................................ 1 1.3 Release Information ........................................................................................ 1 2.0 INTRODUCTION AND SITE HISTORY .................................................................... 2 3.0 POTENTIAL RECEPTORS ........................................................................................ 3 4.0 PUBLIC WATER SUPPLY SAMPLING AND TESTING .............................................. 3 5.0 SURFACE WATER SAMPLING AND TESTING ......................................................... 4 6.0 FREE PRODUCT RECOVERY ................................................................................... 4 7.0 GROUNDWATER INVESTIGATION ........................................................................ 4 7.1 Water Level Measurements and Hydraulic Gradients .......................................... 4 7.2 Groundwater Sample Collection and Analytical Methods ..................................... 5 7.3 Groundwater Contaminant Analytical Data ........................................................ 5 8.0 SUMMARY .............................................................................................................. 6 9.0 RECOMMENDATIONS ............................................................................................ 6 10.0 REPORT CERTIFICATION ...................................................................................... 8 11.0 REFERENCES CITED ............................................................................................... 9 LIST OF FIGURES 1. Topographic Map (USGS 7.5 Minute Series, Creswell Quadrangle, Washington Co., NC) 2. Properties and Water-Supply Wells Within 1500 Feet of the Site 3. Location of Monitoring Wells and Surface Water Samples 4. Equipotential Map, 12/10/2019 5. Benzene Plume Map, 12/10/2019 6. MTBE Plume Map, 12/10/2019 7. Digital Elevation Model LIST OF TABLES 1. List of Adjacent Properties and Properties with Water-Supply Wells Within 1500 Feet of the Site 2. Summary of Surface Water Sampling Analytical Results 3. Well Construction and Water Level Measurements 4. Summary of Monitoring Well Sampling Analytical Results LIST OF APPENDICES I. NCDEQ Correspondence II. Technical Methods and Standard Procedures III. Copy of Laboratory Report and Chain-of-Custody Records GROUNDWATER MONITORING REPORT 1.0 SITE INFORMATION 1.1 SITE IDENTIFICATION Date of Report: January 14, 2020 Facility I.D.: 0-005657 UST Incident Number: 11512 Site Name: Ainsley’s Service Center Site Location: 203 US Highway 64 Nearest City/Town: Creswell ZIP: 27928 County: Washington Risk Classification: High Ranking: 190 D Land Use: Residential Latitude: N 35.8724 Longitude: W -76.3927 1.2 CONTACT INFORMATION UST Owner/Operator: Mr. Bryan Ainsley Address: 2557 Newlands Road, Columbia, North Carolina 27925 Phone: (252) 796-1465 Property Owner: Mr. Bryan Ainsley Address: 2557 Newlands Road, Columbia, North Carolina 27925 Phone: (252) 796-1465 Property Occupant: Mr. Scott Patrick, Patrick’s Auto Address: 203 Old Highway 64, Creswell, North Carolina 27928 Phone: (252) 797-4802 Consultant/Contractor: Groundwater Management Associates, Inc. (GMA) Address: 4300 Sapphire Court, Suite 100, Greenville, North Carolina 27834 Phone: (252) 758-3310 Analytical Laboratory: Waypoint Analytical (Formerly Prism Laboratories, Inc.) State Certification #: 402 Address: 449 Springbrook Road, P.O. Box 240543, Charlotte, North Carolina 28224-0543 Phone: (800) 529-6364 1.3 RELEASE INFORMATION Date Discovered: On December 30, 1993, four underground storage tanks (USTs) were removed from Ainsley’s Service Center (Figures 1 and 2) in Creswell, Washington County. Reportedly, 265 cubic yards of soil were excavated from beneath the tanks, and groundwater was encountered within the excavation (Landmark, 2002). Soil samples were collected from beneath the tanks and analytical results confirmed the presence of total petroleum hydrocarbons (TPH) exceeding the 10 milligrams per kilogram (mg/kg) Reportable Concentration for soil (CES, 1994). Groundwater Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) January 14, 2020 Page 2 of 9 Estimated Quantity of Release: The quantity of the petroleum release is not known. Cause of Release: The cause of the release is assumed to be deterioration of the former USTs, and associated dispenser islands and piping. Source of Release (e.g., Piping/UST): The former USTs and dispenser islands appear to be the source of the release. Sizes and contents of UST system(s) from which the release occurred: Ainsley’s Service Center previously maintained two 4000-gallon gasoline USTs, one 8000-gallon gasoline UST, and one 2000-gallon diesel UST. Tank closure procedures were completed on December 30, 1993. Reportedly, two 10,000-gallon gasoline USTs were installed at the site in November of 1993 to replace the older USTs. Ainsley’s Service Center reportedly stopped selling gasoline in 2005 and the two 10,000 gallon USTs were emptied at approximately the same time (GMA, 2008). 2.0 INTRODUCTION AND SITE HISTORY On December 30, 1993, four USTs were removed from Ainsley’s Service Center (Figures 1 and 2) in Creswell, Washington County. Soil samples were collected from beneath the tanks during closure activities, and analytical results confirmed the presence of TPH exceeding the 10 mg/kg Reportable Concentration for soil (CES, 1994). A Comprehensive Site Assessment (CSA) was prepared in March of 1995 (CES, 1995a) and a CSA Addendum in July of 1995 (CES, 1995b). An initial Corrective Action Plan (CAP) was prepared in November of 1995 (ENSCI, 1995), followed by two CAP Addendums in February of 1996 (ENSCI, 1996) and July of 1996 (Triangle, 1996), respectively. The CAP was approved by the North Carolina Department of Environment and Natural Resources, predecessor of the North Carolina Department of Environmental Quality (NCDEQ), in September of 1996. A remediation system pilot test was performed in March of 2002 (Landmark, 2002), and approved by NCDEQ in October of 2002. A remediation system consisting of groundwater pump-and-treat (P&T) and soil vapor extraction (SVE) technologies was installed and activated in June of 2003. A total of 616,926 gallons of petroleum-contaminated groundwater was reportedly recovered and treated by the remediation system through June of 2005 (CES, 2005). The date that the P&T and SVE system was shut down and removed from the site is unknown. Assessment and remedial efforts at the site were suspended by NCDEQ in September of 2005, but the incident was reactivated in September of 2007. Groundwater Management Associates, Inc. (GMA), completed a sensitive receptor survey, performed three aggressive fluid-vapor recovery (AFVR) events, deployed absorbent socks to recover free product, expanded the monitoring-well network, delineated the extent of soil contamination, and conducted groundwater monitoring events since reactivation of the incident. Groundwater Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) January 14, 2020 Page 3 of 9 GMA submitted a New Technology Cleanup Plan, dated February 16, 2016 at the request of NCDEQ. The plan proposed the excavation of 1,990 tons of petroleum contaminated soil, however, NCDEQ determined that the excavation was not necessary at that time. As requested in the Notice of Regulatory Requirements dated May 17, 2019, GMA has performed a limited groundwater monitoring event (Appendix I). The remainder of this report summarizes the completion of the groundwater monitoring event conducted on December 10, 2019. 3.0 POTENTIAL RECEPTORS In 2008, GMA performed a sensitive receptor survey update by investigating all properties within 1500 feet of the source area (Figure 2). Two inactive water-supply wells were identified within 500 feet of the source area. Two active municipal water-supply wells, one active non- potable well, one inactive well, and one well of unknown status were identified between 500 and 1000 feet from the source area. The two municipal wells serving the Town of Creswell (PWSID 04-94-020) are located approximately 930 feet southeast (WSW2) and 975 feet southeast (WSW1) of the source area (Table 1). The source area lies within the designated wellhead protection area for the two municipal wells (Figures 1 and 2). Municipal wells WSW1 and WSW2 are screened within the Yorktown Aquifer from 89 to 119 feet and from 90 to 110 feet below land surface (BLS), respectively (GMA, 2008). An intermittent drainage ditch is located approximately 125 feet south of the source area, along the southern property boundary of the site (Figure 3). This drainage ditch connects to a channelized tributary of the Scuppernong River (Figures 1 through 3 and 7). 4.0 PUBLIC WATER SUPPLY SAMPLING AND TESTING On December 15, 2015, GMA collected water samples from the public water-supply system at the Ainsley’s Service Center shop (PWS203) and the neighboring Washington County property (PWS207) and the residential property owned by Dr. Charles Payne Jr. (PWS211) to investigate if the dissolved petroleum contaminants had impacted the water-supply lines on those properties. The samples were submitted to a North Carolina certified laboratory, Prism Laboratories, Inc. (Prism) for analysis of volatile organic compounds (VOCs) by EPA Method 6200B. None of the targeted petroleum-related VOCs were detected in the three samples (GMA, 2016a). Each of the public-water supply samples contained a detectable concentration of three or more of the following; bromodichloromethane, bromoform, chloroform, and dibromochloromethane (GMA, 2016a). These four compounds make up the group collectively known as trihalomethanes (THMs) and are formed when disinfectants are used to control microbial contaminants in drinking water. The United States Environmental Protection Agency’s (EPA’s) primary drinking water standard for total THMs is 80 micrograms per liter (µg/L; EPA, 2011). The total concentration of THMs in each of the three samples was less than 80 µg/L. Groundwater Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) January 14, 2020 Page 4 of 9 5.0 SURFACE WATER SAMPLING AND TESTING An intermittent drainage ditch is located along the southern property line of the site, south of monitoring wells MW11, MW13, MW22, MW27, and MW30, and north of monitoring wells MW15, MW24, and MW25 (Figure 3). In February of 2009, GMA measured the elevation of the bottom of the ditch south of monitoring wells MW11 and MW18 relative to the monitoring-well network. The water levels in nearby monitoring wells MW11, MW13, MW22, MW24, and MW25 during recent and previous groundwater monitoring events indicated the water table was above the bottom of the ditch and groundwater was discharging to the ditch. On December 10, 2019, GMA collected a downgradient surface water sample (SW3) from the confluence of the intermittent drainage ditch and the channelized tributary that discharges into the Scuppernong River (Figure 3). Methyl tert-butyl ether (MTBE) was detected in surface water sample SW3 at a laboratory estimated concentration of 0.22 µg/L, which does not exceed either the 15A NCAC 2B surface water standard (19 µg/L) or the 15A NCAC 2L groundwater standard (20 µg/L; Table 2). Naphthalene was detected in surface water sample SW3 for the first time, at a concentration of 1.8 µg/L, which is below the 15A NCAC 2B surface water standard (12 µg/L) and the 15A NCAC 2L groundwater standard (6 µg/L; Table 2). Table 2 summarizes results from surface water sampling events. 6.0 FREE PRODUCT RECOVERY On January 24, 1995, liquid-phase gasoline (free product) was first discovered at the site in monitoring well MW3. Monitoring well MW1 contained free product on May 17 and December 21, 2004, but none has been detected since. Well RW3 contained free product on September 5, 2002, but none has been detected since. Six AFVR events have been conducted on monitoring well MW3 since 2001, and totals of approximately 9.78 gallons of liquid and vapor- equivalent gasoline and 15,693 gallons of contaminated groundwater were recovered (GMA, 2011). On February 24, 2012, GMA deployed absorbent socks in monitoring well MW3 to recover free product, and a total of 4.68 gallons (~25.43 pounds) of free product has been recovered through September 29, 2016. A combined total of approximately 14.5 gallons of gasoline (including vapor equivalent) have been recovered by absorbent sock deployment and maintenance and the six AFVR events (GMA, 2017). Free product measurement tables and figures can be found in GMA’s Remediation Monitoring Report dated July 5, 2017 (GMA, 2017). 7.0 GROUNDWATER INVESTIGATION 7.1 WATER-LEVEL MEASUREMENTS AND HYDRAULIC GRADIENTS On December 10, 2019, GMA collected water-level measurements (Table 3) from eight wells (MW2, MW3, MW14, MW23, MW27, MW28, MW30, and RW4). The average depth to groundwater near the former UST basin was 3.84 feet below land surface (BLS). The Groundwater Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) January 14, 2020 Page 5 of 9 equipotential map (Figure 4) indicates that the horizontal component of groundwater flow was directed toward the west-southwest along an average horizontal hydraulic gradient of approximately 0.002 feet per foot (ft/ft). Historically, GMA has observed an upward-directed vertical hydraulic gradient in the surficial aquifer and underlying Yorktown confining layer at well pair MW2 and MW4 (GMA, 2019). Horizontal and vertical flow directions have remained relatively consistent during the past several years of monitoring. 7.2 GROUNDWATER SAMPLE COLLECTION AND ANALYTICAL METHODS On December 10, 2019, GMA collected groundwater samples from eight wells (MW2, MW3, MW14, MW23, MW27, MW28, MW30, and RW4). GMA submitted the samples to Waypoint Analytical (Waypoint) for analysis of VOCs by EPA Method 6200B. Sample collection, storage, and transportation methods complied with state recommendations (NCDWM, 2013) and GMA’s standard practices (Appendix II). 7.3 GROUNDWATER CONTAMINANT ANALYTICAL DATA Table 4 summarizes new and historical groundwater analytical results. A copy of the laboratory report and chain-of-custody forms for the groundwater samples collected on December 10, 2019 are provided in Appendix III. All eight monitoring well samples contained at least one petroleum-related contaminant at a concentration greater than the 15A NCAC 2L groundwater standard, including benzene, toluene, total xylenes, MTBE, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, naphthalene, n- propylbenzene, and isopropyl-benzene (Table 4). Gross Contaminant Levels (GCLs) were not detected in any of the groundwater samples. GMA prepared benzene and MTBE isoconcentration maps for the December 10, 2019 sampling event (Figures 5 and 6, respectively). GMA inferred the areal extents of the contaminant plumes based on the limited data from this groundwater monitoring event and historical groundwater monitoring data. Contaminant concentrations show general increases in source-area wells MW2 and MW3, as well as downgradient wells MW28 and MW30 during this monitoring period (March 2019 through December 2019). Contaminant concentrations decreased slightly in downgradient monitoring wells MW14 and MW23. Remediation well RW4 also showed a decrease of contaminant concentrations (Table 4). Slight changes in contaminant concentrations could be due to seasonal fluctuations of the water table. Benzene was detected for the first time in monitoring well MW30 during March of 2019. Benzene and MTBE occur in this well above the 15A NCAC 2L groundwater standard and multiple other contaminants occur above laboratory detection limits. In an attempt to minimize any flow-weighted dilution effect on benzene and MTBE, GMA employed other low-flow sampling techniques on downgradient wells with longer screen intervals (MW23, MW28, and MW30). GMA purged three well volumes with a peristaltic pump at these locations instead of using bailers to purge the wells. Monitoring well MW23 showed a Groundwater Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) January 14, 2020 Page 6 of 9 slight decrease of benzene and MTBE since it was last sampled on March 15, 2018. Monitoring well MW28 showed an increase of benzene since it was last sampled on March 15, 2018. Monitoring well MW30 showed a slight increase of benzene and a decrease of MTBE since it was last sampled on March 30, 2019. All groundwater sample collection methods are detailed in Appendix II. 8.0 SUMMARY This Groundwater Monitoring Report describes activities performed at the Ainsley’s Service Center site (UST Incident # 11512) during the period of March 2019 through December 2019 and are described below:  On December 10, 2019, GMA collected water-level measurements and groundwater samples from eight monitoring wells (MW2, MW3, MW14, MW23, MW27, MW28, MW30, and RW4).  The horizontal component of groundwater flow in the surficial aquifer was directed toward the southwest along an average horizontal hydraulic gradient of approximately 0.002 feet per foot.  A review of historical groundwater analytical data indicate that topography seems to be the major control on the direction of contaminant migration (Figure 7).  There are no wells below 40 feet in depth in the monitoring well network.  All eight monitoring well samples contained detectable concentrations of at least one petroleum-related contaminant at concentrations greater than the 15A NCAC 2L groundwater standards.  GCLs did not occur during this sampling event.  Contaminant concentrations in well RW4 decreased during this monitoring period.  Contaminant concentrations in downgradient wells MW14 and MW23 decreased during this monitoring period.  Several petroleum related contaminants continue to occur in downgradient monitoring well MW30 and surface water sample SW3.  The contaminant plume is migrating downgradient and is discharging to the surface water drainage, as is evident by contaminant concentrations detected in monitoring well MW30 and surface water sample SW3.  GMA expects the contaminant plume to continue to migrate to the west-southwest, since an estimated amount of 1,990 tons of petroleum contaminated soil exist at the site (GMA, 2016b). 9.0 RECOMMENDATIONS GMA recommends the following: 1. Continuation of semi-annual groundwater monitoring; to include the following wells: MW1, MW2, MW3, MW5, MW7, MW9, MW10, MW11, MW12, MW14, MW16, MW18, MW23, MW27, MW28, MW30, and RW4. Groundwater Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) January 14, 2020 Page 7 of 9 2. Continued monitoring of surface water in the drainage ditch along the southern property line of the site, and at the confluence of the drainage ditch and the tributary of the Scuppernong River, due to the presence of petroleum-related contaminants in surface water sample SW3 and monitoring well MW30. 3. Sampling town wells (Well#1 and Well#2), if possible. 4. The next semi-annual groundwater monitoring event is anticipated for May of 2020. 5. GMA will submit all surface water and groundwater samples to a North Carolina certified laboratory for analysis of VOCs by EPA Method 6200B. (Remainder of page intenionally left blank) Groundwater Monitoring Report Ainsley's Service Center (UST Incident #: 11512) January 14,2020 Page 8 of 9 10.0 REPORT CERTIFICATION 1. This monitoring report is due January 2020. Will this report be submitted after the established due date? Ans. No 2. Was any required information from the above template missing from this report? Ans. No 3. If applicable, will any of the proposed attenuation milestones under the schedule approved in the CAP not be met? Ans. Not applicable. The CAP for this site was approved by the North Carolina Department of Environment and Natural Resources, predecessor of the North Carolina Department of Environmental Quality (NCDEQ), in September of 1996. A remediation system consisting of groundwater pump-and-treat (P& T) and soil vapor extraction (SVE) technologies was implemented at the site in June of 2003 (CES, 2005). The date that the P& T and SVE system was shut down and removed from the site is unknown. Assessment and remedial efforts at the site were suspended by NCDEQ in September of 2005. The incident was reactivated in September of 2007. Remediation and monitoring of the site has been directed by NCDEQ. Currently, there is no approved CAP for this site and no proposed milestones in place. 4. Does any known or suspected source zone soil contamination of free product remain outside of the assessed area that could be inhibiting natural attenuation? Ans. No, there is only the known soil that remains in the source area (GMA, 2016b). 5. Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite of offsite source? Ans. No. I, Samantha E. Kofroth, a Licensed Geologist for Groundwater Management Associates, Inc. (GMA), do certify that the information contained in this report is correct and accurate to the best of my knowledge. GMA is a professional corporation licensed to practice geology (Greenville and Apex, NC #C-121) and en~~r.ing (Apex, NC #C-0854) in North Carolina. ~", "'" Samantha E. Kofroth, P.G. Staff Hydrogeologist ",'II Ll CA b '" ~t/t" ~ 't'"! .......... ,.,.'"TO '~~#. .:-.t1-••• ·CENS···.. ( .... ~O",: .. ·" "\ SO···· • ./ ~ ~ l" (j'~ A \ ;~I \,,~ i i fV SEAL \~ i ~ (JJ ~ 2625 .N\fj:t: j .. .". ~ W'\. \ : h. • \~\G' \\ ~.,/o i ~ 'f,;.·· .. fOLOG\~·····,~ .. ~ ~ '~' ~" .... ,.." .... ~#. r;.A ....... " ....... dV ~ .. ~ ., ~ ... 1 ~ ,-"'" ,IL EE. \" "", """111111'''''' ili~1:~ Senior Hydrogeologist Groundwater Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) January 14, 2020 Page 9 of 9 11.0 REFERENCES CITED Coastal Environmental Services, Inc., 1994, Phase I Groundwater Quality Assessment, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 5 pages. Coastal Environmental Services, Inc., 1995a, Comprehensive Site Assessment Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 7 pages. Coastal Environmental Services, Inc., 1995b, Comprehensive Site Assessment Addendum, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 5 pages. Coastal Environmental Services, Inc., 2005, Quarterly Monitoring Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 4 pages. ENSCI Engineering Group, P.A., 1995, Corrective Action Plan, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 23 pages. ENSCI Engineering Group, P.A., 1996, Review of Corrective Action Plan, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 5 pages. Environmental Protection Agency, U.S., 2011, Drinking Water Contaminants; National Primary Drinking Water Regulations, retrieved on November 14, 2011, http://water.epa.gov/drink/contaminants/index.cfm. Groundwater Management Associates, Inc., 2008, Sensitive Receptor Survey Update and Remediation Monitoring Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 7 pages. Groundwater Management Associates, Inc., 2011, Free Product Recovery Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 6 pages. Groundwater Management Associates, Inc., 2016a, Remediation Monitoring Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 10 pages. Groundwater Management Associates, Inc., 2016b, New Technology Cleanup Plan, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 18 pages. Groundwater Management Associates, Inc., 2017, Remediation Monitoring Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 7 pages. Groundwater Management Associates, Inc., 2018a, Remediation Monitoring Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 8 pages. Groundwater Management Associates, Inc., 2018b, Remediation Monitoring Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 7 pages. Groundwater Management Associates, Inc., 2019, Remediation Monitoring Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 8 pages. Landmark Engineering and Environmental, P.C., 2002, Pilot Testing Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 4 pages. North Carolina Division of Waste Management, 2013, Guidelines for Assessment and Corrective Action for UST Releases: North Carolina Department of Environment and Natural Resources, Underground Storage Tank Section, Raleigh, North Carolina, 198 pages. Triangle Environmental Inc., 1996, Corrective Action Plan Addendum, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 21 pages. FIGURES !. !A !A WSW1 WSW2 !. !A !A WSW1 WSW2 $ LEGEND Date: 7/29/2015 Project No.111601 TOPOGRAPHIC MAP AINSLEY SERVICE CENTER, CRESWELL, WASHINGTON CO., NC File: DRAWINGS/111601 TOPO2015729 Figure 1 0 1,000 2,000500 FeetCRESWELL QUADRANGLENORTH CAROLINA - WASHINGTON COUNTY7.5 MINUTE SERIES (TOPOGRAPHIC)CONTOUR INTERVAL=5 FEETMAP DATED 1954 (PHOTOREVISED 1974) !.SITE !A MUNICIPAL WATER-SUPPLY WELL WELLHEAD PROTECTION AREA MW21 MW14MW28 MW12 MW16 MW18 MW11 MW13 MW22 MW23 MW26 MW27 MW29 MW30 MW31 MW32 MW19 MW20 MW15 MW25 MW24 MW2 RW4 MW7 MW8 RW2 MW9 MW10 MW6 MW5 MW17 MW4 MW3 RW5 RW1 MW1 RW3 MW33MW34 SW1SW2 SW3 N SEVENTH STUS HWY 64 WEST - SR 1219 CHESSON ST 0 55' LOCATION OF MONITORING WELLSANDSURFACE WATER SAMPLES - LEGEND - PROJECT: 111601 AINSLEY SERVICE CENTERCRESWELL, WASHINGTON CO., NC FIGURE 3 DATE 1/14/2016 SCALE IN FEET MONITORING WELL, TYPE II MONITORING WELL, TYPE III P&T/SVE RECOVERY WELL SW SAMPLE LOCATIONS INACTIVE WSW INTERMITTENT DITCH UNNAMED CANAL ROAD CENTERLINES PARCELS AD @A @A @A @A @A @A @A @A @A@A @A @A @A@A@A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A !A !A !A !A !A @A( @A( MW21 MW14MW28 MW12 MW16 MW18 MW11 MW13MW22 MW23 MW26 MW27 MW29 MW30 MW31 MW32 MW19 MW20 MW15 MW25 MW24 MW2 RW4 MW7 MW8 RW2 MW9 MW10 MW6 MW5 MW17 MW4 MW3 RW5 RW1 MW1 RW3 MW33MW34 NM NM NM 95.93 96.48 NMNM NM NM 95.29 NM NM NM NM NM NM NM NM NM NM NM NMNM NM NM NM NM NM NM NM NM NM 96.20 95.58 95.67 95.76 NM 96.28 96.14 96.00 NM 95.60 96.30 95.40 95.80 96.20 96.00 95.8095.6095.40 N SEVENTH STUS HWY 64 WEST - SR 1219 CHES SON ST 0 60' EQUIPOTENTIAL MAP12/10/2019 $ - LEGEND - PROJECT: 111601 AINSLEY SERVICE CENTERCRESWELL, WASHINGTON CO., NC FIGURE 4 DATE: 1/3/2020 SCALE IN FEET PARCELS AD INACTIVE WSW ROAD CENTERLINES INTERMITTENT DITCH !A P&T/SVE RECOVERY WELL @A MONITORING WELL, TYPE II @A(MONITORING WELL, TYPE III EQUIPOTENTIAL LINE GROUNDWATER FLOW DIRECTION GENERAL NOTES:1. CONTOUR INTERVAL = 0.20 FEET2. ARROW INDICATES DIRECTION OF GROUNDWATER FLOW3. ISOTROPIC CONDITIONS ARE ASSUMED4. WATER LEVEL ELEVATIONS ARE POSTED BY EACH WELL5. ( ) INDICATES DATA NOT USED FILE: DRAWINGS/111601/ EQMAP201912 AD @A @A @A @A @A @A @A @A @A@A @A @A @A@A@A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A !A !A !A !A !A @A( @A( MW21 MW14MW28 MW12 MW16 MW18 MW11 MW13 MW22 MW23 MW26 MW27 MW29 MW30 MW31 MW32 MW19 MW20 MW15 MW25 MW24 MW2 RW4 MW7 MW8 RW2 MW9 MW10 MW6 MW5 MW17 MW4 MW3 RW5 RW1 MW1 RW3 MW33MW34 SW1SW2 SW3 2,800 NM NMNM NM NM NM NM NM NM 330 NM NM NM NM NM NM NM NM NMNM NM NM 4.5 NM NM NM NM 100 <0.5 NM NM NM NM <0.5 NM 1.8 26 NM NM 3,100 NM ? ? ? 1.0 1,000 ? ? ? ? ? ? ? ?N SEVENTH STUS HWY 64 WEST - SR 1219 C H ES S O N ST N SIXTH ST - SR 13100 6532.5 ' BENZENE PLUME MAP,12/10/2019 $ - LEGEND - PROJECT: 111601 AINSLEY SERVICE CENTERCRESWELL, WASHINGTON CO., NC FIGURE 5 DATE 1/3/2020 SCALE IN FEET @A MONITORING WELL, TYPE II @A(MONITORING WELL, TYPE III !A P&T/SVE RECOVERY WELL SW SAMPLE LOCATIONS AD INACTIVE WSW INTERMITTENT DITCH UNNAMED CANAL ROAD CENTERLINES PARCELS BENZENE PLUME ESTIMATED HORIZONTAL EXTENT OF BENZENE AT CONCENTRATIONSGREATER THAN 15A NCAC 2L GROUNDWATER STANDARDS. Concentrations of Benzene in parts per billion (ppb) are listed beside each well.Benzene standard (per 15A NCAC 2L) is 1.0 ppb. Value inside ( ) not used to construct map. FILE: DRAWINGS/111601/BENZENE2019-12 AD @A @A @A @A @A @A @A @A @A@A @A @A @A@A@A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A !A !A !A !A !A @A( @A( MW21 MW14MW28 MW12 MW16 MW18 MW11 MW13MW22 MW23 MW26MW27 MW29 MW30 MW31 MW32 MW19 MW20 MW15 MW25 MW24 MW2 RW4 MW7 MW8 RW2 MW9 MW10 MW6 MW5 MW17 MW4 MW3 RW5 RW1 MW1 RW3 MW33MW34 SW1 SW2 SW3 NM 510 NM NM NM NM NM NM NM NM 98 NM NM NM NM NM NM NM NM NMNM NM NM 18 NM NM NM NM <10 NM NM NM 5.3 NM 270 0.49 J NM NM NM 27 0.22 J NM ? ?20.0? ? ? 2 0 .0 ? ? ? ? ?N SEVENTH STUS HWY 64 WEST - SR 1219 CHESSON ST 0 60' MTBE PLUME MAP,12/10/2019 $ - LEGEND - PROJECT: 111601 AINSLEY SERVICE CENTERCRESWELL, WASHINGTON CO., NC FIGURE 6 DATE 1/3/2020 SCALE IN FEET @A MONITORING WELL, TYPE II @A(MONITORING WELL, TYPE III !A P&T/SVE RECOVERY WELL SW SAMPLE LOCATIONS AD INACTIVEWSW INTERMITTENT DITCH UNNAMED CANAL ROAD CENTERLINES PARCELS MTBE PLUME ESTIMATED HORIZONTAL EXTENT OF METHYL TERT-BUTYL ETHER (MTBE) AT CONCENTRATIONSGREATER THAN 15A NCAC 2L GROUNDWATER STANDARDS, Concentrations of MTBE in parts per billion (ppb) are listed beside each well.MTBE standard (per 15A NCAC 2L) is 20 ppb. Value inside ( ) not used to construct map. FILE: DRAWINGS/111601/MTBE201912 ^ US HWY 64 WEST US HWY 64 EAST 2 8 468 68 86848 68 8 6 8 8 84 488 8 8 8888 84 8 88 8 8 4 84 6 NCCGIA $LEGEND DATE: 8/29/2018 Project No. 111601 WASHINGTON COUNTY, NC DIGITAL ELEVATION MODEL AINSLEY SERVICE CENTER, CRESWELL, WASHINGTON CO.,NC File: DRAWINGS/111601/ DEMnew FIGURE 7 0 400200FeetSCALE IN FEET^SITE SITE BOUNDARIESROAD CENTERLINESTOPOGRAPHIC CONTOUR- 2 FOOT INTERVAL STREAMUNNAMED CANALINTERMITTENT DITCHPARCELS ELEVATION (FEET AMSL) High : 9752Low : 0 TABLES Table 1. List of Adjacent Properties and Properties with Water-Supply Wells Within 1500 Feet of the Site Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 PO Box 68 Creswell, NC 27928 WSW2, municipal, active, and potable 930 ft SE 7147 David Davenport 213 N. 6th St. Creswell, NC 27928 212 N. 6th St. Creswell, NC 27928 active nonpotable WSW 530 ft SE 2120 Gerald Woodley 118 W. Palmetto St. Creswell, NC 27928 0093 3002 Town of Creswell Leigh St. Creswell, NC 27928 Property Owner's Address Distance and Direction from the Site* 203 US Hwy 64 W Bus. Creswell, NC 27928 2557 Newlands Rd. Columbia, NC 27925 Well Number and Status * The distance (in feet) is measured from the well, if one is present, or from the closest corner of the property, as shown on Figure 2. 5236 David & Patricia Davenport 212 N. 6th St. Creswell, NC 27928 206 N. 7th St. Creswell, NC 27928 7579 Palmetto St. Creswell, NC 27928 150 ft SE Town of Creswell 975 ft SE same 4204 Ronald & Daphne Barnes 200 ft S WSW1, municipal, active, and potable PO Box 68 Creswell, NC 27928 N. 7th St. Creswell, NC 27928 PO Box 7 Creswell, NC 27928 207 US Hwy 64 E Creswell, NC 27928 PO Box 1007 Plymouth, NC 27962 180 ft SW Site 120 ft E US Hwy 64 E Creswell, NC 27928 9346 Mount Vernon Cr. Alexandria, VA 22309 170 ft N 160 ft W PO Box 305 Creswell, NC 27928 305 N. 7th St. Creswell, NC 27928 PO Box 98 Creswell, NC 27928 Property Owner Property Address Cleo Hill 3594 Parcel Number 2534 2312 Bryan & Susan Ainsley Washington County 6526 East Carolina Bank 7.30 Clyde Smithson, Jr. 260 ft E 0268 Timothy & Deborah Payne 202 N. 7th St. Creswell, NC 27928 PO Box 156 Creswell, NC 27928 inactive WSW 450 ft SW 101 US Hwy 64 W. Creswell, NC 27928 2956 Ambrose Rd. Creswell, NC 27928 inactive WSW7525Charles & Tina Broome PO Box 71 Creswell, NC 27928 inactive WSW 560 ft SW William White, Jr.115 N. 7th St. Creswell, NC 27928 PO Box 116 Creswell, NC 27928 1 WSW, status unknown 640 ft SW Table 2. Summary of Surface-Water Sampling Analytical Results Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl- benzene total xylenes MTBE EDB IPE 1,2,4- trimethyl- benzene 1,3,5- trimethyl- benzene naph- thalene acetone 4-isopropyl- toluene tetrachloro- ethylene cis-1,2- dichlor- ethylene 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 <10 < 0.5 < 0.5 < 0.5 10/1/2014 1 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 71 < 0.5 1.7 0.97 6/16/2015 < 0.5 380 1.6 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 1.9 < 1.0 36 15 < 0.5 < 0.5 12/15/2015 2 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 9/29/2016 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 12 < 0.5 < 0.5 < 0.5 3/15/2018 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 6.1 J < 0.5 < 0.5 < 0.5 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 <10 < 0.5 < 0.5 < 0.5 10/1/2014 < 0.5 0.98 < 0.5 < 0.5 10 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 6/17/2015 3 < 0.5 < 0.5 < 0.5 < 0.5 1.6 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 6.4 J < 0.5 < 0.5 < 0.5 12/15/2015 < 0.5 < 0.5 < 0.5 < 0.5 2.9 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 9/29/2016 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 3/15/2018 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 7.1 J < 0.5 < 0.5 < 0.5 10/1/2014 1.5 0.95 < 0.5 < 0.5 2.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 6/17/2015 < 0.5 < 0.5 < 0.5 < 0.5 8.6 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 12/15/2015 < 0.5 < 0.5 < 0.5 < 0.5 0.77 J < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 9/29/2016 < 0.5 < 0.5 < 0.5 < 1.5 0.74 J < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 6.3 J < 0.5 < 0.5 < 0.5 3/15/2018 < 0.5 < 0.5 < 0.5 < 1.5 1.1 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 <10 < 0.5 < 0.5 < 0.5 12/10/2019 <0.5 <0.5 <0.5 <1.5 0.22 J <0.5 <0.5 <0.5 <0.5 1.8 7.8 J <0.5 <0.5 <0.5 1.19 11 68 670 19 0.02 20,000 390 130 12 2,000 320 3.3 4900 11.9 110 680 6,700 190 0.20 200,000 3,900 1,300 120 20,000 3,200 33 49,000 1.0 600 600 500 20 0.02 70 400 400 6.0 6,000 25 0.70 70 All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb)1 10/1/2014 - SW1 - Carbon Tetrachloride (1.3 ug/L, 2B Std. = 1.6 ug/L) J = Analyte was positively identified, but the concentration is estimated below the reporting limit 2 12/15/2015 - SW1 - Chloroform (0.73 ug/L, 2B Std. = 70 ug/L) MTBE = Methyl tert-butyl ether 3 6/17/2015 - SW2 - Acetone (6.4 J ug/L, 2B Std. = 2000 ug/L) EDB = Ethylene dibromide NA = Not analyzed IPE = Isopropyl ether NSE = No standard established 15A NCAC 2B Standards 15A NCAC 2L Standards SW1 SW2 SW3 10X 15A NCAC 2B Standards Table 3. Well Construction and Water Level Measurements Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 MW1 13 2 3 - 13 100.00 4.29 95.71 2.84 97.16 4.03 95.97 3.43 96.57 MW2 13 2 3 - 13 99.38 3.66 95.72 2.36 97.02 3.24 96.14 MW3 13 2 3 - 13 99.68 3.93 95.75 2.47 97.21 3.67 96.01 3.04 96.64 3.40 96.28 MW4 30 2 25 - 30 99.49 MW5 13 2 3 - 13 99.78 3.25 96.53 MW6 13 2 3 - 13 100.08MW71323 - 13 99.60 4.25 95.35 2.9 96.70 3.53 96.07 MW8 13 2 3 - 13 99.21 MW9 13 2 3 - 13 99.17 2.52 96.65MW101323 - 13 99.92 3.04 96.88 MW11 12 2 2 - 12 98.90 2.95 95.95 MW12 12 2 2 - 12 98.80 2.85 95.95 MW13 12 2 2 - 12 99.20 MW14 12 2 2 - 12 99.09 3.67 95.42 2.43 96.66 3.45 95.64 3.02 96.07 3.16 95.93 MW15 11 2 6 - 11 97.84 MW16 15 2 3 - 15 98.26 2.34 95.92 MW17 15 2 3 - 15 100.28 MW18 40 2 35 - 40 98.40 2.49 95.91 MW19 15 2 3 - 15 98.43 MW20 15 2 3 - 15 98.29 MW21 15 2 3 - 15 98.41 MW22 20 2 5 - 20 101.48 MW23 20 2 5 - 20 100.74 5.65 95.09 4.6 96.14 5.07 95.67 MW24 20 2 5 - 20 98.40 MW25 20 2 5 - 20 97.97 MW26 12 2 2 - 12 100.94 MW27 27 2 17 - 27 100.88 5.90 94.98 4.98 95.90 5.30 95.58 MW28 23 2 3 - 23 98.58 3.36 95.22 2.27 96.31 2.82 95.76 MW29 25 2 5 - 25 101.44 MW30 25 2 5 - 25 100.07 3.3 1.86 94.91 4.78 95.29 MW31 25 2 5 - 25 96.74 MW32 25 2 5 - 25 97.63 MW33 25 2 5 - 25 98.59 MW34 25 2 5 - 25 101.47RW1244unknown99.61 RW2 23 4 unknown 100.78 RW3 8 2 3 - 8 98.93 2.70 96.23 1.01 97.92RW47.5 2 unknown 99.40 3.49 95.91 2.09 97.31 3.25 96.15 2.68 96.72 2.92 96.48 RW5 8 2 3 - 8 99.64 All measurements are in feet except for well diameter, which is in inches. Well depths and screened intervals are relative to land surface. Top of well casing elevations are relative to an arbitrary benchmark, the top of well casing of monitoring well MW1. Depth to water measured from the top of the well casing. * = Free Product was present in the monitoring well 12/10/2019 Depth to Water Elevation of Water 3/20/2019 Depth to Water Elevation of Water 9/26/2018 Depth to Water Elevation of Water 3/15/2018 Depth to Water Elevation of Water 6/7/2017 Depth to Water Elevation of Water Height of stickup (ft) Well Number Well Depth Well Diameter (inches) Screened Interval Elevation of Casing Table 4. Summary of Monitoring Well Sampling Analytical Results (Page 1 of 7) Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl-benzene total xylenes MTBE EDB IPE 1,2-DCA 1,2,4-trimethyl- benzene 1,3,5-trimethyl- benzene naphthalene 2-methyl-naphthalene isopropyl-benzene n-propyl-benzene n-butyl-benzene sec-butyl-benzene tert-butyl-benzene 4-isopropyl-toluene styrene 2-chloro-toluene tetrachloro-ethylene trichloro-ethylene cis-1,2-dichlor- ethylene trans-1,2-dichloro- ethylene vinyl chloride lead C5-C8aliphatics C9-C18aliphatics C19-C36aliphatic C9-C22aromatic 7/27/1994 4600 4000 1500 3900 1300 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 1/24/1995 21,000 30,000 1400 15,000 < 50 < 50 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 3000 2800 630 1200 660 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 1500 2900 490 2500 200 NA 74 NA NA NA 78 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 64 NA NA NA NA 3/24/2002 3700 3900 860 4300 1000 NA < 50 NA NA NA 100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 89 NA NA NA NA 6/5/2002 7000 7200 1400 7000 1500 NA < 50 NA NA NA 340 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 130 NA NA NA NA 9/5/2002 5500 12,000 2100 8200 < 200 NA < 200 NA NA NA 53 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 27 NA NA NA NA 12/19/2002 8100 6500 1900 8000 2400 NA 32 NA NA NA 220 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12 NA NA NA NA 4/1/2003 10,000 11,000 1600 7500 1800 NA < 500 NA NA NA 210 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 19 NA NA NA NA 6/23/2003 9600 14,000 2700 15,000 < 250 NA < 1200 NA NA NA 130 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 53 NA NA NA NA 9/11/2003 5600 11,000 1800 8700 < 50 NA < 250 NA NA NA 190 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 110 NA NA NA NA 5/17/2004 12/21/2004 5/21/2008 6500 5300 1400 5900 580 < 50 < 50 < 50 1600 500 490 110 < 50 170 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA 24,000 14,700 < 100 6300 2/25/2009 6400 2900 1100 3830 620 < 50 < 50 < 50 1100 340 450 100 61 170 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA 8500 7300 < 100 890 9/15/2009 4400 4500 1400 6600 340 < 50 < 50 < 50 1900 650 590 250 < 50 120 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA 6/8/2010 3400 7300 1500 6900 2300 < 50 < 50 < 50 1800 550 630 NA 56 160 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA 2/1/2011 1100 2600 750 3200 2000 < 5.0 14 < 5.0 890 270 470 NA 74 210 27 14 < 5.0 5.7 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 11/8/2011 1500 1200 570 1900 460 < 5.0 6.4 < 5.0 570 140 400 NA 61 160 25 9.8 < 5.0 9.9 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 11,000 3000 NA 3600 7/10/2012 150 39 58 130 120 < 5.0 < 5.0 < 5.0 25 7.1 98 NA 6.0 60 < 5.0 5.6 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 4/24/2013 130 330 220 650 12 < 2.5 < 2.5 < 2.5 220 61 110 NA 20 60 11 7.8 < 2.5 4.8 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA 2700 1300 NA 1100 12/10/2013 300 770 400 1500 6.7 < 2.5 < 2.5 < 2.5 370 130 140 NA 18 57 24 7.8 < 2.5 6.7 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA NA NA NA NA 10/1/2014 520 870 700 1500 < 10 < 5.0 < 5.0 < 5.0 820 210 260 NA 46 110 29 21 < 5.0 20 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/16/2015 460 910 740 2300 < 20 < 10 < 10 < 10 950 280 300 NA 59 180 39 16 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 NA NA NA NA NA 12/15/2015 160 340 280 830 < 10 < 5.0 < 5.0 < 5.0 290 85 110 NA 17 48 8.9 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/29/2016 460 730 680 1900 < 10 < 5.0 < 5.0 < 5.0 910 290 340 NA 46 150 23 11 < 5.0 6.6 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/7/2017 660 1200 1200 3900 < 10 < 5.0 < 5.0 < 5.0 1400 540 710 NA 80 250 27 15 0.6 11.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 3/15/2018 330 600 680 1710 < 10 < 5.0 < 5.0 < 5.0 650 240 350 NA 34 96 15 7 < 5.0 5.6 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/26/2018 320 360 560 1400 <10 <5.0 0.31 J <5.0 610 180 270 NA 32 89 35 8 0.44 J 5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA NA NA NA 3/20/2019 74 160 210 570 <1.0 <5.0 <0.5 <0.5 220 63 84 NA 20 67 13 5.4 0.34 J 3.1 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 7/27/1994 5800 500 640 1800 6200 < 50 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 1/24/1995 17,000 20,000 1900 9000 4800 < 100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 14,000 6000 1900 5000 16,000 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 6800 2900 1400 4890 6900 NA < 200 NA NA NA 86 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 51 NA NA NA NA 3/24/2002 3100 1000 920 2700 3400 NA < 100 NA NA NA 110 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 11 NA NA NA NA 6/5/2002 4200 1400 950 2610 5200 NA < 50 NA NA NA 190 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 17 NA NA NA NA 9/5/2002 3900 2000 1000 3120 3400 NA 58 NA NA NA 42 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 11 NA NA NA NA 12/19/2002 4700 1900 1200 2910 3500 NA 20 NA NA NA 150 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 4/1/2003 5900 3900 1200 2900 4400 NA < 500 NA NA NA 150 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 7700 3100 1200 3000 7400 NA < 500 NA NA NA 100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12 NA NA NA NA 9/11/2003 3100 3400 1200 4100 1500 NA < 250 NA NA NA 180 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 41 NA NA NA NA 5/17/2004 36 21 8.8 22 25 NA < 5.0 NA NA NA 160 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 18 NA NA NA NA 12/21/2004 4.5 < 5.0 < 1.0 < 3.0 40 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 37 NA NA NA NA 5/21/2008 4300 370 410 1000 2400 < 50 < 50 < 50 240 58 320 11 < 50 < 50 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA 3700 2400 < 100 4150 2/25/2009 4400 200 320 640 2200 < 50 < 50 < 50 170 < 50 160 32 < 50 67 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA 11,000 3010 < 100 391 9/14/2009 7600 290 1100 1880 2300 < 50 < 50 < 50 420 < 50 490 29 < 50 < 50 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA 6/9/2010 6800 980 810 1390 1200 < 50 < 50 < 50 260 < 50 400 NA < 50 120 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA 1/31/2011 3100 210 420 670 600 < 5.0 28 < 5.0 200 28 240 NA 35 91 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 11/7/2011 6300 130 670 850 530 < 5.0 31 < 5.0 210 31 330 NA 49 120 16 5.4 < 5.0 9.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 12,000 3200 NA 1200 J 7/11/2012 6700 110 840 910 550 < 5.0 35 < 5.0 260 37 280 NA 42 110 14 6.5 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 4/24/2013 5900 91 670 280 600 < 2.5 45 < 2.5 56 8.8 430 NA 72 200 15 11 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA 13,000 1300 NA 1400 12/10/2013 8000 63 710 640 650 < 5.0 39 < 5.0 49 8.1 420 NA 70 200 16 8.8 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 10/1/2014 1 6000 68 850 790 210 < 5.0 24 < 5.0 63 26 570 NA 85 230 31 22 < 5.0 16 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/16/2015 5900 130 720 510 360 < 5.0 32 < 5.0 140 26 560 NA 110 290 27 14 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 12/15/2015 3100 3000 670 3000 700 < 5.0 16 < 5.0 740 200 290 NA 43 130 20 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/29/2016 6900 86 560 390 140 < 5.0 30 < 5.0 78 13 460 NA 68 190 18 8.4 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/7/2017 7700 85 880 480 250 < 5.0 39 < 5.0 150 21 640 NA 78 220 25 9.9 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 3/15/2018 1300 56 210 120 27 < 5.0 5 < 5.0 48 5.1 170 NA 28 83 8.7 < 50 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 12/10/2019 3100 32 210 92 27 <5.0 8.2 <5.0 27 <50 290 NA 50 140 13.0 5.8 <5.0 <5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 7/27/1994 4800 3500 780 3000 7000 < 250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 1/24/1995 7/17/1995 12/26/2001 3/24/2002 6/5/2002 9/5/2002 12/19/2002 4/1/2003 7400 22,000 3300 17,100 6400 NA < 500 NA NA NA 460 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 25 NA NA NA NA 6/23/2003 9/11/2003 5/17/2004 12/21/2004 5/21/2008 2/25/2009 9/14/2009 6/7/2010 1/31/2011 4000 16,000 2400 9300 2100 < 20 29 < 20 2800 810 940 NA 140 430 44 20 < 20 < 20 < 20 < 20 < 20 < 20 < 20 < 20 < 20 NA NA NA NA NA 11/7/2011 7/11/2012 8200 13,000 2300 9900 4000 < 10 40 < 10 2600 1100 900 NA 170 580 150 58 < 10 26 < 10 < 10 < 10 < 10 < 10 < 10 < 10 NA NA NA NA NA 4/23/2013 3800 4000 1000 3100 1400 < 10 20 < 10 740 210 280 NA 56 140 33 25 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 NA 14,000 2200 NA 3400 12/11/2013 1700 3200 440 2800 240 < 25 < 25 < 25 540 140 150 NA < 25 62 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 NA NA NA NA NA 9/30/2014 5400 7300 1900 12000 1600 < 25 26 < 25 2400 640 680 NA 160 310 93 82 < 25 83 < 25 < 25 < 25 < 25 < 25 < 25 < 25 NA NA NA NA NA 6/16/2015 4900 8700 1800 6800 2200 < 25 40 < 25 2200 610 580 NA 120 330 44 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 NA NA NA NA NA 12/15/2015 4600 49 340 330 100 < 5.0 19 < 5.0 66 10 450 NA 62 180 20 8.5 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/29/2016 4500 6300 1500 7100 750 < 5.0 < 5.0 < 5.0 2200 930 740 NA 140 470 150 52 < 5.0 26 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/7/2017 8200 12000 2300 13000 3100 < 5.0 47 < 5.0 3900 1100 1300 NA 150 480 80 38 < 5.0 22 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 3/15/2018 5100 3000 940 4900 690 < 5.0 22 < 5.0 1400 380 470 NA 60 190 32 15 < 5.0 7.8 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/26/2018 8600 8300 2200 11000 1700 <5.0 37 <5.0 3400 770 750 NA 110 320 110 23 <5.0 17.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA NA NA NA 3/20/20192 1800 1300 350 1400 430 <5.0 11 <5.0 500 160 190 NA 26 68 <0.5 6.3 <5.0 3.9 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 12/10/2019 2800 1500 450 2600 510 <5.0 16 <5.0 920 260 310 NA 50 130 16 9.7 <5.0 5.8 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 1.0 600 600 500 20 0.02 70 0.40 400 400 6.0 30 70 70 70 70 70 25 70 100 0.70 3.0 70 100 0.03 15 400 700 10,000 200 5000 260,000 84,500 85,500 20,000 50 70,000 400 28,500 25,000 6,000 12,500 25,000 30,000 6,900 8,500 15,000 11,700 70,000 NSE 700 3000 70,000 100,000 30 15,000 NSE NSE NSE NSE 11.9 110 680 6700 190 0.20 70 370 3,900 1,300 120 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSE All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).MTBE = Methyl tert-butyl ether GCL = gross contamination level EDB = Ethylene dibromide Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl ether Red = Concentration exceeds the GCL 1,2-DCA = 1,2-Dichloroethane NA = Not analyzed H = Estimated concentration with a high bias NSE = No standard established 1 10/1/2014 - MW2 - Acetone (22 J ug/L, 2L Std. = 6000 ug/L) J = Analyte was positively identified, but the concentration is estimated below the reporting limit 2 3/20/2019-MW3 - Methyl Isobutyl Ketone (8.4 J µg/L, 2L Std. = 100 µg/L) Well not sampled, 0.15 feet of free product present Well not sampled, 0.35 feet of free product present Well not sampled, 0.95 feet of free product present Well not sampled, 0.24 feet of free product present Well not sampled, 0.04 feet of free product present Well not sampled, 0.40 feet of free product present Well not sampled, 0.55 feet of free product present Well not sampled, 2.28 feet of free product present 15A NCAC 2L Standards GCL 10X 15A NCAC 2B Standards Well not sampled, 0.08 feet of free product present Well not sampled, 0.02 feet of free product present Well not sampled, 1.34 feet of free product present Well not sampled, 0.71 feet of free product present Well not sampled, 0.28 feet of free product present Well not sampled, 0.21 feet of free product present Well not sampled, 0.20 feet of free product present Well not sampled, 0.50 feet of free product present Well not sampled, 1.30 feet of free product present Well not sampled, 2.47 feet of free product present MW1 MW3 MW2 Table 4. Summary of Monitoring Well Sampling Analytical Results (Page 2 of 7) Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl-benzene total xylenes MTBE EDB IPE 1,2-DCA 1,2,4-trimethyl-benzene 1,3,5-trimethyl-benzene naphthalene 2-methyl-naphthalene isopropyl-benzene n-propyl-benzene n-butyl-benzene sec-butyl-benzene tert-butyl-benzene 4-isopropyl-toluene styrene 2-chloro-toluene tetrachloro-ethylene trichloro-ethylene cis-1,2-dichlor-ethylene trans-1,2-dichloro-ethylene vinyl chloride lead C5-C8aliphatics C9-C18aliphatics C19-C36aliphatic C9-C22aromatic 1/24/1995 22 15 5.0 17 21 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 2.5 < 1.0 < 1.0 < 1.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 1.0 9.5 4.2 42 7.9 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 3/24/2002 5.9 64 50 280 7.5 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 6/5/2002 < 1.0 2.9 1.4 5.7 6.5 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 9/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 15 NA NA NA NA 12/19/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 4/1/2003 2.2 1.2 < 1.0 < 1.0 98 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 < 1.0 < 5.0 < 1.0 < 3.0 93 NA < 5.0 NA NA NA 120 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 9/11/2003 < 1.0 < 5.0 < 1.0 < 3.0 45 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 42 NA NA NA NA 5/17/2004 < 1.0 < 5.0 < 1.0 < 3.0 38 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 32 NA NA NA NA 12/21/2004 4.5 < 5.0 < 1.0 < 3.0 40 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 37 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 51 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 30 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 42 J < 150 < 100 < 150 9/15/2009 < 0.5 < 0.5 < 0.5 < 1.5 9.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 9.8 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/9/2010 < 0.5 < 0.5 < 0.5 < 1.5 2.7 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 < 0.5 < 0.5 < 1.5 2.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/7/2011 < 0.5 < 0.5 < 0.5 < 1.5 2.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 1.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 0.68 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 0.52 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/15/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/29/2016 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/24/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 < 1.0 < 1.0 < 1.0 < 1.0 5.3 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 1.0 < 1.0 < 1.0 < 1.0 24 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 74 NA NA NA NA 3/24/2002 < 1.0 < 1.0 < 1.0 3.3 39 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 14 NA NA NA NA 6/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 25 NA < 1.0 NA NA NA 42 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 32 NA NA NA NA 9/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 90 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 31 NA NA NA NA 12/19/2002 < 1.0 < 1.0 < 1.0 < 1.0 90 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 21 NA NA NA NA 4/1/2003 < 1.0 < 1.0 < 1.0 < 1.0 77 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 18 NA NA NA NA 6/23/2003 < 1.0 < 5.0 < 1.0 < 3.0 39 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 21 NA NA NA NA 9/11/2003 < 1.0 < 5.0 < 1.0 < 3.0 34 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 43 NA NA NA NA 5/17/2004 < 1.0 < 5.0 < 1.0 < 3.0 20 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 17 NA NA NA NA 12/21/2004 < 1.0 < 5.0 < 1.0 < 3.0 40 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 5/21/2008 1 < 0.5 < 0.5 < 0.5 < 1.5 91 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 0.76 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 32 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 40 J < 150 < 100 < 150 9/14/2009 < 0.5 < 0.5 < 0.5 < 1.5 37 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 0.60 < 0.5 < 0.5 5.5 < 0.5 < 0.5 NA NA NA NA NA 6/9/2010 2 < 0.5 < 0.5 < 0.5 < 1.5 8.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 NA < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 0.67 < 0.5 < 0.5 78 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 < 0.5 < 0.5 < 1.5 23 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.81 6.6 5.2 120 1.2 < 0.5 NA NA NA NA NA 11/7/2011 < 0.5 < 0.5 < 0.5 < 1.5 25 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 1.9 0.64 1.0 120 < 0.5 < 0.5 NA 63 < 50 NA 2.1 J 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 6.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 200 1.0 0.60 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 4.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 130 0.73 < 0.5 NA 45 J < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 2.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 91 0.54 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 1.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 64 0.56 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 2.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 92 1.0 < 0.5 NA NA NA NA NA 3/20/2019 0.43 J <0.5 <0.5 <1.5 1.9 <0.5 <0.5 <0.5 <0.5 <0.5 <1.0 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 61 0.8 <0.5 NA NA NA NA NA 1/24/1995 3500 490 830 2500 < 100 < 100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 7300 660 1000 3000 1600 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 970 29 880 1121 110 NA < 10 NA NA NA 72 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 40 NA NA NA NA 3/24/2002 1000 35 980 1023 310 NA < 10 NA NA NA 41 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 14 NA NA NA NA 6/5/2002 890 28 740 840 290 NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 40 NA NA NA NA 9/5/2002 4100 < 50 1200 410 4800 NA < 50 NA NA NA 120 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 12/19/2002 1500 8.2 670 142 1600 NA 11 NA NA NA 97 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 4/1/2003 1300 < 10 420 58 1800 NA < 10 NA NA NA 140 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 610 < 5.0 220 75 380 NA 9.2 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 11 NA NA NA NA 9/11/2003 460 < 25 120 30 1100 NA < 25 NA NA NA 39 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 30 NA NA NA NA 5/17/2004 960 < 250 450 < 150 1500 NA < 250 NA NA NA 65 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12 NA NA NA NA 12/21/2004 400 < 120 180 < 75 740 NA < 25 NA NA NA 28 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 5.6 NA NA NA NA 5/21/2008 500 7.2 7.2 20 100 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 170 47 23 71 < 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 860 797 < 100 950 2/25/2009 480 6.6 < 5.0 30 210 < 5.0 < 5.0 < 5.0 < 5.0 5.9 140 24 29 86 6.1 J < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 1800 780 < 100 260 9/15/2009 350 12 95 331 15 < 5.0 < 5.0 < 5.0 46 < 5.0 110 24 16 20 < 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/8/2010 430 7.1 13 24 11 < 5.0 < 5.0 < 5.0 5.4 < 5.0 120 NA 14 44 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 2/1/2011 250 < 5.0 10 22 11 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 120 NA 26 78 5.1 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 11/8/2011 430 7.0 9.9 51 370 < 5.0 < 5.0 < 5.0 < 5.0 9.8 240 NA 46 140 13 6.8 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 3600 820 NA 810 7/11/2012 10 < 2.5 < 2.5 7.2 J 110 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 53 NA 12 37 3.4 4.0 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 9.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 2.8 NA < 0.5 1.3 < 0.5 1.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 96 J 76 J NA 45 J 12/10/2013 < 0.5 < 0.5 < 0.5 < 1.5 12 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 2.4 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 1.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 2.4 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 2.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.73 < 0.5 < 0.5 NA NA NA NA NA 1.0 600 600 500 20 0.02 70 0.40 400 400 6.0 30 70 70 70 70 70 25 70 100 0.70 3.0 70 100 0.03 15 400 700 10,000 200 5000 260,000 84,500 85,500 20,000 50 70,000 400 28,500 25,000 6000 12,500 25,000 30,000 6900 8500 15,000 11,700 70,000 NSE 700 3000 70,000 100,000 30 15,000 NSE NSE NSE NSE 11.9 110 680 6700 190 0.20 70 370 3,900 1,300 120 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSE All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).MTBE = Methyl tert-butyl ether GCL = gross contamination level EDB = Ethylene dibromide Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl ether Red = Concentration exceeds the GCL 1,2-DCA = 1,2-Dichloroethane NA = Not analyzed H = Estimated concentration with a high bias NSE = No standard established 1 5/21/2008 - MW5 - 4-Chlorotoluene (0.76 ug/L, 2L Std. = 24 ug/L) J = Analyte was positively identified, but the concentration is estimated below the reporting limit 2 6/9/2010 - MW5 - Ethanol (310 ug/L, 2L Std. = 4000 ug/L) GCL 10X 15A NCAC 2B Standards MW6 MW5 15A NCAC 2L Standards MW4"deep" Type III well Table 4. Summary of Monitoring Well Sampling Analytical Results (Page 3 of 7) Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl-benzene total xylenes MTBE EDB IPE 1,2-DCA 1,2,4-trimethyl-benzene 1,3,5-trimethyl-benzene naphthalene 2-methyl-naphthalene isopropyl-benzene n-propyl-benzene n-butyl-benzene sec-butyl-benzene tert-butyl-benzene 4-isopropyl-toluene styrene 2-chloro-toluene tetrachloro-ethylene trichloro-ethylene cis-1,2-dichlor-ethylene trans-1,2-dichloro-ethylene vinyl chloride lead C5-C8aliphatics C9-C18aliphatics C19-C36aliphatic C9-C22aromatic 1/24/1995 680 25 36 150 850 < 100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 240 < 1.0 5.0 13 570 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 3/24/2002 37 < 10 13 20 600 NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 25 NA NA NA NA 6/5/2002 24 < 10 12 28 620 NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 52 NA NA NA NA 9/5/2002 <2.0 < 2.0 < 2.0 4.7 180 NA < 2.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 42 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 73 < 0.5 1.1 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 97 < 150 < 100 < 150 9/14/2009 36 < 0.5 < 0.5 < 1.5 240 < 0.5 2.3 < 0.5 < 0.5 < 0.5 < 2.0 < 9.8 0.81 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/9/2010 12 1.2 < 0.5 9.2 44 < 0.5 1.0 < 0.5 0.86 < 0.5 21 NA 6.1 11 0.73 1.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 2/1/2011 3.3 < 0.5 < 0.5 2.6 13 < 0.5 0.66 < 0.5 4.2 0.50 2.3 NA 1.2 1.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/7/2011 13 10 < 0.5 15 5.0 < 0.5 0.77 < 0.5 0.72 < 0.5 0.95 J NA 0.77 0.55 < 0.5 0.58 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 430 120 NA 72 7/11/2012 0.53 < 0.5 < 0.5 1.5 4.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 13 1.4 < 0.5 15 3.4 < 0.5 < 0.5 < 0.5 1.4 < 0.5 6.6 NA 3.7 4.6 < 0.5 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 310 180 J NA 96 J 12/11/2013 25 0.71 < 0.5 2.6 4.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 2.0 NA 0.78 0.57 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 1.9 < 0.5 < 0.5 0.64 J 3.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA 0.60 < 0.5 < 0.5 0.54 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 6.0 < 0.5 < 0.5 < 1.5 0.92 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.61 J NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/15/2015 0.93 < 0.5 < 0.5 0.56 J 2.3 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.95 J NA 0.52 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/29/2016 < 0.5 < 0.5 < 0.5 < 1.5 0.97 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/7/2017 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/15/2018 4.0 0.67 < 0.5 1.2 J 1.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 6.5 NA 2.3 2.4 < 0.5 0.99 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 <0.5 <0.5 <0.5 0.30 J 0.58 J <0.5 0.41 J <0.5 <0.5 <0.5 0.47 J NA <0.5 0.32 J <0.5 0.47 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 1/24/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 44 NA NA NA NA 3/24/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 20 NA NA NA NA 6/5/2002 < 1.0 < 1.0 < 1.0 1.4 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 24 NA NA NA NA 9/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 12/19/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 4/1/2003 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA 94 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 9/11/2003 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 17 NA NA NA NA 5/17/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 12/21/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 9/14/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 11 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 2/1/2011 < 0.5 < 0.5 < 0.5 < 1.5 22 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/7/2011 < 0.5 < 0.5 < 0.5 < 1.5 16 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 4.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 11 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 3.5 J 12 J NA 1.4 J 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 2.7 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 4.3 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 2.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/24/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12 NA NA NA NA 3/24/2002 < 1.0 2.8 1.5 7.6 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 6/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 9/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 12/19/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 49 NA NA NA NA 4/1/2003 < 1.0 2.1 < 1.0 1.7 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 35 NA NA NA NA 6/23/2003 1.1 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 15 NA NA NA NA 9/11/2003 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 22 NA NA NA NA 5/17/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 160 NA NA NA NA 12/21/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 15 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 9/15/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 2/1/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/10/2012 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 12/10/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 <0.5 <0.5 <0.5 <1.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <1.0 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 1.0 600 600 500 20 0.02 70 0.40 400 400 6.0 30 70 70 70 70 70 25 70 100 0.70 3.0 70 100 0.03 15 400 700 10,000 200 5000 260,000 84,500 85,500 20,000 50 70,000 400 28,500 25,000 6000 12,500 25,000 30,000 6900 8500 15,000 11,700 70,000 NSE 700 3000 70,000 100,000 30 15,000 NSE NSE NSE NSE 11.9 110 680 6700 190 0.20 70 370 3,900 1,300 120 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSE All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).MTBE = Methyl tert-butyl ether GCL = gross contamination level EDB = Ethylene dibromide Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl ether Red = Concentration exceeds the GCL 1,2-DCA = 1,2-Dichloroethane NA = Not analyzed H = Estimated concentration with a high bias NSE = No standard established J = Analyte was positively identified, but the concentration is estimated below the reporting limit MW8 GCL 10X 15A NCAC 2B Standards MW9 15A NCAC 2L Standards MW7 Table 4. Summary of Monitoring Well Sampling Analytical Results (Page 4 of 7) Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl-benzene total xylenes MTBE EDB IPE 1,2-DCA 1,2,4-trimethyl- benzene 1,3,5-trimethyl- benzene naphthalene 2-methyl-naphthalene isopropyl-benzene n-propyl-benzene n-butyl-benzene sec-butyl-benzene tert-butyl-benzene 4-isopropyl-toluene styrene 2-chloro-toluene tetrachloro-ethylene trichloro-ethylene cis-1,2-dichlor- ethylene trans-1,2-dichloro- ethylene vinyl chloride lead C5-C8aliphatics C9-C18aliphatics C19-C36aliphatic C9-C22aromatic 1/24/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7/17/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 28 NA NA NA NA 3/24/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 16 NA NA NA NA 6/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 31 NA NA NA NA 9/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 12/19/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 4/1/2003 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 < 1.0 < 5.0 < 1.0 < 3.0 1.4 NA <5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 9/11/2003 < 1.0 < 5.0 < 1.0 < 3.0 1.4 NA <5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 24 NA NA NA NA 5/17/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA <5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 12/21/2004 < 1.0 < 5.0 < 1.0 < 3.0 1.4 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 4.8 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 1.3 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 9/15/2009 < 0.5 < 0.5 < 0.5 < 1.5 6.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 2/1/2011 < 0.5 < 0.5 < 0.5 < 1.5 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 < 0.5 < 0.5 < 0.5 < 1.5 0.59 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 0.89 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 17 J NA 4.1 J 12/10/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 <0.5 <0.5 <0.5 <1.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <.0 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 7/17/1995 42 < 1.0 5.2 < 1.0 41 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 2500 120 900 1800 270 NA < 25 NA NA NA 37 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 62 NA NA NA NA 3/24/2002 260 < 25 120 200 26 NA < 25 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 6/5/2002 790 22 310 466 140 NA < 5.0 NA NA NA 41 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 37 NA NA NA NA 9/5/2002 120 < 10 70 49 59 NA < 10 NA NA NA 48 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 11 NA NA NA NA 12/19/2002 14 < 1.0 11 3.3 35 NA 1.9 NA NA NA 19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 11 NA NA NA NA 4/1/2003 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 14 NA NA NA NA 9/11/2003 160 < 25 79 38 < 5.0 NA < 25 NA NA NA 42 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 33 NA NA NA NA 5/21/2008 920 10 5.1 39 350 < 5.0 7.2 H < 5.0 < 5.0 < 5.0 110 5.3 J 21 64 < 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 900 487 < 100 650 2/25/2009 160 < 2.0 < 2.0 5.2 190 < 2.0 2.8 < 2.0 6.9 < 2.0 27 < 10 4.5 11 < 4.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 NA 1000 260 < 100 < 100 9/15/2009 780 6.3 4.4 36 92 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 140 16 24 68 < 4.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 NA NA NA NA NA 6/8/2010 250 2.6 11 11 9.8 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 66 NA 10 29 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 NA NA NA NA NA 2/1/2011 < 0.5 < 0.5 < 0.5 < 1.5 1.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 52 0.78 < 0.5 4.1 9.2 < 0.5 0.79 < 0.5 0.75 0.94 19 NA 2.9 6.6 0.76 0.57 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 290 120 NA 130 7/10/2012 < 0.5 < 0.5 < 0.5 < 1.5 2.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 4.5 J 11 J NA 2.5 J 12/10/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 <0.5 <0.5 <0.5 <1.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <1.0 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 7/17/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 10 < 10 < 10 < 10 690 NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12 NA NA NA NA 3/24/2002 < 10 < 10 < 10 < 10 110 NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 6/5/2002 21 < 5.0 < 5.0 11 350 NA < 5.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 17 NA NA NA NA 9/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 12/19/2002 < 1.0 < 1.0 < 1.0 < 1.0 2.5 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 4/1/2003 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 9/11/2003 < 1.0 < 5.0 < 1.0 < 3.0 3.3 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 6.5 NA NA NA NA 5/17/2004 < 1.0 < 5.0 < 1.0 < 3.0 11 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 12/21/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 9/14/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 < 0.5 < 0.5 < 0.5 < 1.5 5.3 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/7/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 0.63 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.88 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 <0.5 <0.5 <0.5 0.42 J 0.29 J <0.5 <0.5 <0.5 <0.5 <0.5 <1.0 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 1.0 600 600 500 20 0.02 70 0.40 400 400 6.0 30 70 70 70 70 70 25 70 100 0.70 3.0 70 100 0.03 15 400 700 10,000 200 5000 260,000 84,500 85,500 20,000 50 70,000 400 28,500 25,000 6000 12,500 25,000 30,000 6900 8500 15,000 11,700 70,000 NSE 700 3000 70,000 100,000 30 15,000 NSE NSE NSE NSE 11.9 110 680 6700 190 0.20 70 370 3,900 1,300 120 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSE All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).MTBE = Methyl tert-butyl ether GCL = gross contamination level EDB = Ethylene dibromide Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl ether Red = Concentration exceeds the GCL 1,2-DCA = 1,2-Dichloroethane NA = Not analyzed H = Estimated concentration with a high bias NSE = No standard established J = Analyte was positively identified, but the concentration is estimated below the reporting limit MW12 MW10 MW11 15A NCAC 2L Standards GCL 10X 15A NCAC 2B Standards Table 4. Summary of Monitoring Well Sampling Analytical Results (Page 5 of 7) Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl-benzene total xylenes MTBE EDB IPE 1,2-DCA 1,2,4-trimethyl-benzene 1,3,5-trimethyl-benzene naphthalene 2-methyl-naphthalene isopropyl-benzene n-propyl-benzene n-butyl-benzene sec-butyl-benzene tert-butyl-benzene 4-isopropyl-toluene styrene 2-chloro-toluene tetrachloro-ethylene trichloro-ethylene cis-1,2-dichlor-ethylene trans-1,2-dichloro-ethylene vinyl chloride lead C5-C8aliphatics C9-C18aliphatics C19-C36aliphatic C9-C22aromatic 7/17/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 56 NA NA NA NA 6/5/2002 <1.0 < 1.0 62 < 1.0 2.7 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 66 NA NA NA NA 9/5/2002 320 350 270 500 92 NA 25 NA NA NA 27 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 12/19/2002 310 210 180 420 18 NA 1.4 NA NA NA 53 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 4/1/2003 6.6 2.0 4.2 4.4 < 1.0 NA < 1.0 NA NA NA 33 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 11 NA NA NA NA 6/23/2003 80 < 120 31 < 75 < 25 NA < 120 NA NA NA 25 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 5.2 NA NA NA NA 9/11/2003 16 < 5.0 10 13 < 1.0 NA < 5.0 NA NA NA 28 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 37 NA NA NA NA 5/17/2004 < 1.0 < 5.0 3.1 < 3.0 1.8 NA < 5.0 NA NA NA 1.4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 5.4 NA NA NA NA 12/21/2004 < 1.0 < 5.0 < 1.0 < 3.0 2.3 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 8.0 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 2.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 4.2 < 1.5 1.3 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 2.2 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 9/15/2009 < 0.5 < 0.5 < 0.5 < 1.5 0.79 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 9.4 1.2 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 2/1/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/10/2012 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 7/17/1995 < 1.0 < 1.0 < 1.0 < 1.0 < 5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12/26/2001 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 48 NA NA NA NA 3/24/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 6/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 26 NA NA NA NA 9/5/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA 12/19/2002 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 4/1/2003 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA 6/23/2003 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 6.6 NA NA NA NA 9/11/2003 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 27 NA NA NA NA 5/17/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 24 NA NA NA NA 12/21/2004 < 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 9/14/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 < 0.5 < 0.5 < 1.5 5.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/7/2011 < 0.5 < 0.5 < 0.5 < 1.5 20 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 21 J < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 55 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 0.76 < 0.5 < 0.5 0.89 J 1100 < 0.5 4.6 < 0.5 < 0.5 < 0.5 < 1.0 NA 1.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 590 76 J NA 29 J 12/11/2013 240 6.0 2.8 110 1600 < 2.5 14 < 2.5 52 15 24 NA 9.0 12 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA NA NA NA NA 10/1/2014 390 6.6 3.6 53 1100 < 2.5 14 < 2.5 39 11 37 NA 10 16 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA NA NA NA NA 6/17/2015 1000 14 10 72 1100 < 2.5 15 < 2.5 40 14 72 NA 29 41 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA NA NA NA NA 12/15/2015 630 12 6.0 60 840 < 5.0 17 < 5.0 18 11 110 NA 26 56 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/29/2016 310 8.7 2.6 50 390 < 5.0 17 < 5.0 4.6 3.5 78 NA 14 29 1.0 1.5 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/7/2017 120 4.2 1.8 30 290 < 5.0 13 < 5.0 4.2 2.8 120 NA 15 31 1.2 1.4 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 3/15/2018 850 13.0 9.0 130 200 < 5.0 17 < 5.0 5.6 1.4 160 NA 41 51 1.8 2.4 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/26/2018 570 12.0 10.0 79 120 <5.0 12 <5.0 2.6 1.3 140 NA 38 47 2.3 3.2 0.29 J 0.54 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA NA NA NA 3/20/2019 440 9.5 3.0 66 150 <5.0 18 <5.0 1.9 1.0 130 NA 30 46 2.5 2.6 <0.5 0.33 J <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA NA NA NA 12/10/2019 330 8.6 6.0 67 98 <5.0 12 <5.0 1.8 0.72 300 NA 48 59 3.7 4.1 0.28 J 0.58 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA NA NA NA 6/23/2003 67 < 250 < 50 < 150 190 NA < 250 NA NA NA 1.2 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 370 NA NA NA NA 9/11/2003 170 < 25 29 26 120 NA < 25 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 140 NA NA NA NA 12/21/2004 120 < 5.0 1.3 10 360 NA 16 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 77 NA NA NA NA 5/21/2008 < 0.5 < 0.5 < 0.5 < 1.5 43 < 0.5 0.91 H < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 46 J < 100 17 J 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 5.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 150 9/14/2009 < 0.5 < 0.5 < 0.5 < 1.5 46 < 0.5 0.72 < 0.5 < 0.5 < 0.5 < 2.0 < 10 1.4 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 < 0.5 < 0.5 < 0.5 < 1.5 25 < 0.5 1.1 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 < 0.5 < 0.5 < 1.5 3.6 < 0.5 0.52 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 < 0.5 < 0.5 < 0.5 < 1.5 0.69 J < 0.5 0.60 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 32 J < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 1.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 9.8 J < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 1.7 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 < 0.5 < 0.5 < 0.5 < 1.5 9.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 4.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 45 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 <150 9/15/2009 < 0.5 < 0.5 < 0.5 < 1.5 110 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 9.7 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 160 2.3 0.80 16 190 < 0.5 2.0 < 0.5 0.97 < 0.5 28 NA 6.7 13 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 2/1/2011 130 2.2 0.76 11 230 < 0.5 3.0 < 0.5 0.84 < 0.5 37 NA 9.0 17 < 0.5 0.67 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 1 160 4.6 2.9 43 120 < 0.5 1.6 < 0.5 2.0 < 0.5 84 NA 18 37 0.93 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 1700 220 NA 260 7/10/2012 820 21 27 120 160 < 0.5 5.9 < 0.5 6.3 3.1 180 NA 42 97 3.3 3.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 180 3.3 2.3 35 120 < 0.5 2.5 < 0.5 1.4 1.1 94 NA 17 40 2.7 2.9 < 0.5 0.84 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 880 350 NA 290 12/10/2013 1.4 < 0.5 < 0.5 1.8 80 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 4.2 NA 0.87 0.52 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 1.2 J 35 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 30 NA 3.3 0.88 0.75 1.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 1.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 1.1 <0.5 <0.5 <1.5 0.60 J <0.5 <0.5 <0.5 <0.5 <0.5 <1.0 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 3.8 <0.5 <0.5 NA NA NA NA NA 2/25/2009 530 190 150 860 40 < 5.0 < 5.0 < 5.0 180 55 68 < 10 16 29 < 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA < 5.0 < 5.0 < 5.0 < 5.0 NA 2300 1989 < 100 140 9/14/2009 52 0.98 < 0.5 14 490 < 0.5 < 0.5 < 0.5 2.4 1.8 7.2 < 9.7 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 2 < 0.5 < 0.5 < 0.5 < 1.5 39 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA 0.53 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 < 0.5 < 0.5 < 1.5 34 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA 0.61 < 0.5 < 0.5 0.71 < 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/7/2011 < 0.5 < 0.5 < 0.5 < 1.5 25 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA 0.83 < 0.5 < 0.5 0.79 < 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 12 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 1.1 < 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 12 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.92 2.5 34 < 0.5 < 0.5 NA 12 J 14 J NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 5.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 2.8 4.1 53 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 2.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.53 J NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 3.9 5.2 85 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 0.74 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 1.4 5.0 100 < 0.5 < 0.5 NA NA NA NA NA 1.0 600 600 500 20 0.02 70 0.40 400 400 6.0 30 70 70 70 70 70 25 70 100 0.70 3.0 70 100 0.03 15 400 700 10,000 200 5000 260,000 84,500 85,500 20,000 50 70,000 400 28,500 25,000 6000 12,500 25,000 30,000 6900 8500 15,000 11,700 70,000 NSE 700 3000 70,000 100,000 30 15,000 NSE NSE NSE NSE 11.9 110 680 6700 190 0.20 70 370 3,900 1,300 120 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSE All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).J = Analyte was positively identified, but the concentration is estimated below the reporting limit 1 11/8/2011 - MW16 - 1,2-Dichloropropane (0.51 ug/L, 2L Std. = 0.6 ug/L) GCL = gross contamination level MTBE = Methyl tert-butyl ether 2 6/8/2010 - MW17 - Ethanol (220 ug/L, 2L Std. = 4000 ug/L) Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard EDB = Ethylene dibromide Red = Concentration exceeds the GCL IPE = Isopropyl ether NA = Not analyzed 1,2-DCA = 1,2-Dichloroethane NSE = No standard established H = Estimated concentration with a high bias could not locate MW16 10X 15A NCAC 2B Standards 15A NCAC 2L Standards GCL MW17 could not sample MW14 MW13 MW15 Table 4. Summary of Monitoring Well Sampling Analytical Results (Page 6 of 7) Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl- benzene total xylenes MTBE EDB IPE 1,2-DCA 1,2,4- trimethyl- benzene 1,3,5- trimethyl- benzene naphthalene 2-methyl- naphthalene isopropyl- benzene n-propyl- benzene n-butyl- benzene sec-butyl- benzene tert-butyl- benzene 4-isopropyl- toluene styrene 2-chloro- toluene tetrachloro- ethylene trichloro- ethylene cis-1,2- dichlor- ethylene trans-1,2- dichloro- ethylene vinyl chloride lead C5-C8 aliphatics C9-C18 aliphatics C19-C36 aliphatic C9-C22 aromatic 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 <150 9/15/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 9.7 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/9/2010 1 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 <0.5 <0.5 <0.5 <1.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <.0 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 2/24/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 31 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 <150 9/15/2009 < 0.5 2.9 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 9.8 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 5.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 < 0.5 0.73 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 1.4 < 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0.5 NA NA NA NA NA 2/25/2009 < 0.5 < 0.5 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 0.92 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 <150 9/14/2009 < 0.5 8.7 < 0.5 < 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 10 < 0.5 < 0.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/8/2010 < 0.5 0.81 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 < 0.5 1.8 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/8/2011 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 7/11/2012 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 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0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 110 < 0.5 1.1 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 55 < 50 NA < 50 12/11/2013 30 0.66 < 0.5 0.90 J 190 < 0.5 1.8 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 160 2.7 0.56 17 110 < 0.5 4.1 1.5 0.53 < 0.5 5.6 NA 5.4 4.7 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 460 4.8 1.7 15 520 < 0.5 6.5 2.0 0.74 < 0.5 15 NA 10 10 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/15/2015 8 520 6.8 3.9 29 500 < 0.5 4.7 < 0.5 0.74 < 0.5 30 NA 13 20 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/29/2016 49 3.2 0.91 18 35 < 0.5 0.57 < 0.5 < 0.5 < 0.5 35 NA 9.4 18 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/7/2017 9.9 1.8 0.75 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0.5 < 0.5 < 0.5 < 1.5 6.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 1.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 7/10/2012 9 < 0.5 < 0.5 < 0.5 < 1.5 89 < 0.5 0.91 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 350 < 0.5 3.3 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 190 12 J NA 1.6 J 12/11/2013 3.2 < 0.5 < 0.5 < 1.5 170 < 0.5 1.8 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 < 0.5 < 0.5 < 0.5 < 1.5 17 < 0.5 0.57 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 10 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 7/10/2012 < 0.5 < 0.5 < 0.5 < 1.5 100 < 0.5 5.2 0.60 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 10 J < 50 NA < 50 4/24/2013 < 0.5 < 0.5 < 0.5 < 1.5 170 < 0.5 6.3 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 71 < 50 NA < 50 12/10/2013 < 0.5 < 0.5 < 0.5 0.59 J 180 < 0.5 6.7 < 0.5 1.0 < 0.5 0.57 J NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 180 < 0.5 6.5 0.58 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 210 < 0.5 6.7 0.64 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/15/2015 < 0.5 < 0.5 < 0.5 < 1.5 250 < 0.5 7.8 0.62 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/29/2016 10 < 0.5 < 0.5 < 0.5 < 1.5 310 < 0.5 9.9 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/7/2017 < 0.5 < 0.5 < 0.5 < 1.5 270 < 0.5 8.3 0.56 < 0.5 < 0.5 0.78 J NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/15/2018 < 0.5 < 0.5 < 0.5 < 1.5 270 < 0.5 9.2 0.54 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/10/2019 < 0.5 < 0.5 < 0.5 < 1.5 270 <0.5 9.2 0.57 <0.5 <0.5 2.4 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1.0 600 600 500 20 0.02 70 0.40 400 400 6.0 30 70 70 70 70 70 25 70 100 0.70 3.0 70 100 0.03 15 400 700 10,000 200 5000 260,000 84,500 85,500 20,000 50 70,000 400 28,500 25,000 6000 12,500 25,000 30,000 6900 8500 15,000 11,700 70,000 NSE 700 3000 70,000 100,000 30 15,000 NSE NSE NSE NSE 11.9 110 680 6700 190 0.20 70 370 3,900 1,300 120 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSE All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).MTBE = Methyl tert-butyl ether 3 4/23/2013 - MW20 - 1,1-Dichloroethane (1.4 ug/L, 2L Std. = 6.0 ug/L)8 12/15/2015 - MW23 - Acetone (13 ug/L, 2L Std. = 6000 ug/L) GCL = gross contamination level EDB = Ethylene dibromide 4 12/11/2013 - MW20 - 1,1-Dichloroethane (1.7 ug/L, 2L Std. = 6.0 ug/L)9 7/10/2012 - MW26 - Acetone (16 ug/L, 2L Std. = 6000 ug/L) Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl ether 5 9/30/2014 - MW20 - 1,1-Dichloroethane (2.7 ug/L, 2L Std. = 6.0 ug/L)10 9/29/2016- MW27- 1,2-Dichloroethane (0.81 ug/L, 2L Std. = 0.4 ug/L) Red = Concentration exceeds the GCL 1,2-DCA = 1,2-Dichloroethane 6 6/16/2015 - MW20 - 1,1-Dichloroethane (1.7 J ug/L, 2L Std. = 6.0 ug/L) NA = Not analyzed H = Estimated concentration with a high bias 7 11/8/2011 - MW22 - Acetone (4.7 J ug/L, 2L Std. = 6000 ug/L) NSE = No standard established 1 6/9/2010 - MW18 - Ethanol (310 ug/L, 2L Std. = 4000 ug/L) 8 7/10/2012 - MW22 - Acetone (6.8 J ug/L, 2L Std. = 6000 ug/L) J = Analyte was positively identified, but the concentration is estimated below the reporting limit 2 6/16/2015 - MW19 - 1,1-Dichloroethane (0.50 ug/L, 2L Std. = 6.0 ug/L)7 11/8/2011 - MW23 - Methyl ethyl ketone (5.8 ug/L, 2L Std. = 4000 ug/L) & Methyl butyl ketone (1.5 ug/L, NSE) MW19 MW18 "deep" Type III well MW26 MW27 MW23 15A NCAC 2L Standards GCL 10X 15A NCAC 2B Standards MW22 MW20 MW21 MW25 MW24 Table 4. Summary of Monitoring Well Sampling Analytical Results (Page 7 of 7) Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Sample Date benzene toluene ethyl- benzene total xylenes MTBE EDB IPE 1,2-DCA 1,2,4- trimethyl-benzene 1,3,5- trimethyl-benzene naphthalene 2-methyl- naphthalene isopropyl- benzene n-propyl- benzene n-butyl- benzene sec-butyl- benzene tert-butyl- benzene 4-isopropyl- toluene styrene 2-chloro- toluene tetrachloro- ethylene trichloro- ethylene cis-1,2- dichlor-ethylene trans-1,2- dichloro-ethylene vinyl chloride lead C5-C8 aliphatics C9-C18 aliphatics C19-C36 aliphatic C9-C22 aromatic 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 1.9 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 14 J NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 100 < 0.5 0.53 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 4.4 < 0.5 < 0.5 < 1.5 190 < 0.5 2.6 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 43 0.94 < 0.5 13 96 < 0.5 1.8 < 0.5 3.7 1.1 0.68 J NA 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/15/2015 110 2.0 < 0.5 26 190 < 0.5 6.2 < 0.5 17 4.4 2.8 NA 2.5 1.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/29/2016 140 2.6 0.59 15 130 < 0.5 7.2 < 0.5 7.1 1.4 3.1 NA 3.5 2.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/7/2017 200 3.2 1.4 22 74 < 0.5 5.3 < 0.5 2.8 0.76 7.8 NA 7.2 7.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/15/2018 17 1.1 < 0.5 11 10 < 0.5 1.3 < 0.5 1.1 < 0.5 14 NA 8.4 16 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/10/2019 26 1.5 0.28 J 6.2 5.3 <0.5 1.3 <0.5 0.39 J <0.5 11 NA 5.8 13 <0.5 0.46 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 4.6 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 31 < 0.5 < 0.5 < 0.5 1.8 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 < 0.5 < 0.5 < 0.5 < 1.5 11 < 0.5 < 0.5 < 0.5 2.9 0.72 < 1.0 NA 0.60 0.62 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 5.7 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 6.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 0.88 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 43 < 0.5 0.51 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 130 < 0.5 1.1 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 76 < 0.5 1.0 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/20/2019 4.4 1.2 <0.5 11 31 <0.5 0.7 <0.5 0.52 0.32 J 20 NA 7.5 11 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 12/10/2019 4.5 1.4 0.29 J 14 18 <0.5 0.49 J <0.5 0.74 0.51 34 NA 11.0 17 <0.5 0.31 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 4/23/2013 1 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 13 J NA < 50 12/11/2013 2 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 3 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 4 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 3.8 J < 50 NA < 50 12/11/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/10/2013 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/17/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/10/2013 < 0.5 < 0.5 < 0.5 < 1.5 0.51 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 50 10/1/2014 < 0.5 < 0.5 < 0.5 < 1.5 0.51 J < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 < 0.5 < 0.5 < 0.5 < 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 5/21/2008 470 8.2 74 142 750 < 0.5 3.9 H < 0.5 28 5.5 11 < 10 4.1 7.8 0.80 J 0.90 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 370 460 < 100 167 2/25/2009 63 1.7 11 18 78 < 0.5 0.68 < 0.5 5.0 0.70 2.2 < 10 0.87 1.6 < 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 240 94 < 100 < 150 5/21/2008 360 8.6 280 57 52 < 0.5 2.5 < 0.5 4.4 0.60 110 16 28 67 6.3 3.7 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 700 1100 < 100 830 2/25/2009 390 8.3 140 22 42 < 0.5 1.8 < 0.5 15 0.51 110 14 18 42 3.6 2.2 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 2100 880 < 110 274 5/21/2008 1200 480 250 1400 4700 < 50 < 50 < 0.5 1300 510 380 110 < 50 130 < 100 < 50 < 50 52 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA 4900 7900 1300 6500 2/25/2009 850 540 160 1090 1600 < 5.0 < 5.0 < 0.5 460 170 83 12 11 18 28 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 5600 8800 1000 1620 9/15/2009 620 150 64 213 900 < 5.0 < 5.0 < 0.5 330 130 73 110 < 5.0 < 5.0 < 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/8/2010 220 51 49 182 200 < 0.5 < 0.5 < 0.5 110 34 18 NA 3.6 6.0 < 0.5 0.62 < 0.5 0.85 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 1/31/2011 5 530 750 60 270 720 < 0.5 1.4 < 0.5 73 41 11 NA 2.4 5.3 < 0.5 0.63 < 0.5 2.1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 11/7/2011 6 1000 660 92 470 2000 < 0.5 3.8 < 0.5 350 200 46 NA 7.9 19 < 0.5 2.5 < 0.5 4.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 4900 1800 NA 1800 7/12/2012 7 16 5.2 13 64 23 < 0.5 < 0.5 < 0.5 51 3.8 7.6 NA 1.7 4.1 1.1 0.74 < 0.5 0.70 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 4/23/2013 8 580 80 50 180 460 < 0.5 3.3 1.2 54 41 32 NA 5.8 13 4.6 2.0 < 0.5 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 3600 430 NA 660 12/11/2013 75 16 16 58 88 < 0.5 < 0.5 < 0.5 18 2.7 6.2 NA 1.3 1.5 1.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/30/2014 9 530 45 170 380 500 < 0.5 1.1 < 0.5 250 46 36 NA 13 27 3.5 2.3 < 0.5 1.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/16/2015 10 640 m.,69 140 830 < 0.5 1.5 < 0.5 56 5.8 19 NA 3.0 4.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 12/15/2015 70 1.1 1.5 6.8 52 < 0.5 < 0.5 < 0.5 9.5 1.9 4.4 NA 0.61 0.54 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/29/2016 180 7.2 19 72 130 < 0.5 < 0.5 < 0.5 150 23 20 NA 6.0 9.60 5.9 2.2 < 0.5 1.4 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 6/7/2017 450 44 59 110 230 < 0.5 0.74 < 0.5 33 3.6 11 NA 1.8 2.80 0.96 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 3/15/2018 470 89 110 190 410 < 0.5 1.4 < 0.5 72 13 16 NA 3.8 9.70 2.0 0.96 < 0.5 0.66 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 5/21/2008 5100 2000 1600 3760 < 50 < 50 < 50 < 0.5 1600 410 530 140 59 230 86 J < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA 10,000 12,900 240 6800 2/25/2009 4500 1100 1700 2540 < 50 < 50 < 50 < 0.5 1300 200 440 210 67 200 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA 5600 8800 320 1650 9/15/2009 3000 130 1800 1148 48 < 5.0 < 5.0 < 0.5 870 110 420 94 72 210 43 15 < 5.0 16 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/8/2010 520 67 500 698 < 10 < 5.0 < 5.0 < 0.5 990 140 260 NA 54 170 39 14 < 5.0 7.6 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 1/31/2011 160 120 240 280 < 10 < 5.0 < 5.0 < 0.5 330 36 120 NA 30 120 58 19 < 5.0 8.6 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 11/7/2011 980 52 950 220 26 < 5.0 < 5.0 < 0.5 240 25 310 NA 54 160 32 12 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 6700 2800 NA 2700 7/12/2012 11 890 45 730 200 < 10 < 5.0 < 5.0 < 5.0 52 7.3 190 NA 32 93 12 6.2 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 4/23/2013 290 34 370 110 < 10 < 5.0 < 5.0 < 5.0 62 < 5.0 110 NA 26 90 28 16 < 5.0 8.2 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 3100 300 NA 940 12/11/2013 230 26 450 79 5.3 J < 5.0 < 5.0 < 5.0 40 < 5.0 140 NA 27 96 28 15 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/30/2014 1500 37 700 130 140 < 5.0 < 5.0 < 5.0 82 12 230 NA 41 130 33 12 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/16/2015 540 29 490 100 < 10 < 5.0 < 5.0 < 5.0 29 < 5.0 170 NA 36 110 30 11 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 12/15/2015 1100 48 760 180 160 < 0.5 1.9 < 0.5 60 6.5 310 NA 39 160 28 9.2 < 0.5 1.8 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA 9/29/2016 480 29 570 110 <10 < 0.5 < 5.0 < 5.0 37 2.6 340 NA 39 190 31 10.0 < 5.0 2.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 6/7/2017 910 37 680 170 <10 < 0.5 < 5.0 < 5.0 32 2.2 360 NA 43 160 27 9.9 < 5.0 1.7 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 3/15/2018 900 170 680 200 <10 < 0.5 0.81 < 5.0 36 3.6 330 NA 44 170 31 11.0 0.66 1.8 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA 9/26/2018 1300 40 800 150 53 <5.0 1.4 <5.0 72 5 350 NA 58 240 32 13.0 0.43 J 2.8 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA NA NA NA 3/20/2019 1500 92 790 200 <1.0 <0.5 1.1 <0.5 32 2.5 270 NA 50 160 29 10.0 0.32 J 1.8 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 12/10/2019 100 8.2 71 22 <10 <0.5 6.3 <0.5 28 2.5 J 39 NA <5.0 22 19 4.4 J <5.0 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA NA NA NA NA 5/21/2008 530 94 110 230 < 5.0 < 5.0 < 5.0 < 0.5 77 22 36 < 10 5.8 13 < 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA 670 690 < 100 190 2/25/2009 200 8.1 47 34 2.9 < 0.5 1.1 < 0.5 34 5.1 9.8 < 10 4.5 8.2 0.84 J 0.92 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA 660 290 94 J 170 1.0 600 600 500 20 0.02 70 0.40 400 400 6.0 30 70 70 70 70 70 25 70 100 0.70 3.0 70 100 0.03 15 400 700 10,000 200 5000 260,000 84,500 85,500 20,000 50 70,000 400 28,500 25,000 6000 12,500 25,000 30,000 6900 8500 15,000 11,700 70,000 NSE 700 3000 70,000 100,000 30 15,000 NSE NSE NSE NSE 11.9 110 680 6700 190 0.20 70 370 3,900 1,300 120 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSE All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).MTBE = Methyl tert-butyl ether 4 6/16/2015 - MW31 - 1,4-Dichlorobenzene (0.64 ug/L, 2L Std. = 6.0 ug/L) & Chlorobenzene (0.51 ug/L, 2L Std. = 50 ug/L) GCL = gross contamination level EDB = Ethylene dibromide 5 1/31/2011 - RW3 - Bromoform (0.66 ug/L, 2L Std. = 4.0 ug/L) & Ethanol (270,000 ug/L, 2L Std. = 4000 ug/L) Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl ether 6 11/7/2011 - RW3 - Acetone (10 ug/L, 2L Std. = 6000 ug/L) & Methyl isobutyl ketone (6.9 ug/L, 2L Std. = 100 ug/L) Red = Concentration exceeds the GCL 1,2-DCA = 1,2-Dichloroethane 7 7/12/2012 - RW3 - Methyl isobutyl ketone (0.71 ug/L, 2L Std. = 100 ug/L) NA = Not analyzed H = Estimated concentration with a high bias 8 4/23/2013 - RW3 - Methyl isobutyl ketone (3.1 ug/L, 2L Std. = 100 ug/L) NSE = No standard established 1 4/23/2013 - MW31 - 1,4-Dichlorobenzene (0.69 ug/L, 2L Std. = 6.0 ug/L) & Chlorobenzene (1.9 ug/L, 2L Std. = 50 ug/L) 9 9/30/2014 - RW3 - Acetone (11 ug/L, 2L Std. = 6000 ug/L) J = Analyte was positively identified, but the concentration is estimated below the reporting limit 2 12/11/2013 - MW31 - 1,4-Dichlorobenzene (1.1 ug/L, 2L Std. = 6.0 ug/L) & Chlorobenzene (5.0 ug/L, 2L Std. = 50 ug/L) 10 6/16/2015 - RW3 - Acetone (11 ug/L, 2L Std. = 6000 ug/L) 3 9/30/2014 - MW31 - 1,4-Dichlorobenzene (0.74 ug/L, 2L Std. = 6.0 ug/L) & Chlorobenzene (1.2 ug/L, 2L Std. = 50 ug/L) 11 7/12/2012 - RW4 - Methyl isobutyl ketone (26 ug/L, 2L Std. = 100 ug/L), Methyl ethyl ketone (23 J ug/L, 2L Std. = 4000 ug/L), & Methyl butyl ketone (27 ug/L, NSE) MW30 RW2 10X 15A NCAC 2B Standards MW34 MW31 MW32 RW4 RW3 RW5 RW1 MW33 GCL 15A NCAC 2L Standards MW28 MW29 APPENDIX I NCDEQ CORRESPONDENCE ROY COOPER Governor MICHAEL S. REGAN Secretmy MICHAEL SCOTT Director Mr. Brian D. Ainsley 2557 Newlands Road Creswell, NC 27925 Dear Mr. Ainsley: NORTH CAROLINA Environmental Quality May 17,2019 Re: Notice of Regulatory Requirements 15A NCAC 2L .0407(c) [Intermediate Risk] Risk-based Assessment and Corrective Action For Petroleum Underground Storage Tanks Ainsley's Service Center 203 Old Hwy 64, Creswell, NC Washington County Incident Number: 11512 Risk Classification: Intermediate Ranking: I 185 D The UST Section, Division of Waste Management, Department of Environmental Quality (Department) is in receipt of the Ground Water Monitoring Report dated April 16, 2019, which documents limited ground water monitoring results from a sampling event on March 20, 2019. The report has been reviewed and will be maintained within the Washington Regional Office. During this most recent sampling event, concentrations of petroleum constituents in the groundwater were detected above the groundwater cleanup standards defined in Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 2L .0202 in multiple monitoring wells, while all constituents were below the applicable Gross Contaminant Levels (GCLs) for Intermediate Risk sites from 15A NCAC 2L .0406(2) for the first time since 2015. Current Department policy, as described in the June 1, 2016 memo entitled "A Calibrated Risk- Based Corrective Action Decision and Implementation Guide", incorporates the requirements of North Carolina General Statute (G.S.) §143-215.94V(b) into evaluating the available risk-based remedial strategies at any given site. To help accomplish this, the stability ofthe petroleum plume can be evaluated using groundwater models or a statistical analysis technique, such as the Mann-Kendall Trend Test. One such evaluation of whether plume is still migrating (increasing concentrations), is stable, or is contracting (decreasing concentrations,) has been prepared by the Department using current and historic results from key wells in the core of the petroleum plume (MW-I, MW-2, MW-3, MW-7, MW-14, RW-3, and RW-4) and from the western, downgradient portion of the plume (MW-16, MW-22, MW-23, MW-26, MW-27 , . State of North Carolina I Environmental Quality I Waste Management Washington Regional Office I 943 Washington Square Mall I Washington, NC 27889 I (252) 946-6481 MW -28 , and MW -30). The results of these evaluations show petroleum contamination increasing in wells RWA, MW-27, and MW-28. Future investigations should be focused on obtaining a better understanding of why the contamination in these wells in increasing and any risk posed by this trend. Additionally, the levels of benzene in monitoring wells MW -2 and MW -3 should continue to be monitored as these wells have frequently exceeded the GCLs in the past and must demonstrate consistent stability or decreasing contaminant trends below the applicable GCLs before the risk posed by these wells can be accommodated through passive remedial strategies such as institutional controls. A semiannual sampling event focusing on these objectives should be scheduled sometime within the 3rd or 4th quarter of2019. Effective October 1,2004, the Department requires that all work not determined to be an emergency response or associated with risk assessment (i.e., the Limited Site Assessment Report, per Title 15A NCAC 2L .0405) must be preapproved if State Trust Fund reimbursement is anticipated. To comply with this requirement, a completed PreapprovaVClaim Authorization Form encompassing the scope of work described above must be received in this office prior to the start of any tasks for which you intend to seek reimbursement. Upon completion of any preapproved activities, you should submit your claim promptly. Reimbursement funds are budgeted based on completed preapprovals, but delays in reimbursement or even denial due to a failure to meet the statute of limitations on claiming a completed task can result if the work is not completed in a timely fashion or of claims are not submitted immediately following work completion. If you have any questions regarding trust fund eligibility or reimbursement from the Commercial Leaking Petroleum Underground Storage Tank Cleanup Fund, please contact the UST Section Trust Fund Branch at (919) 707-8171. If you have questions regarding the information contained in this letter, please contact me at the address or telephone number listed below. Sincerely, ~::~ Hydrogeologist Washington Regional Office UST Section, Division of Waste Management, NCDEQ Enclosures: GSI Mann-Kendall Toolkit Results (8 pages) cc: Ms. Samantha Kofroth, Groundwater Management Associates, inc. (electronic copy) Washington Regional Office I 943 Washington Square Mall I Washington, NC 27889 I (252) 946-6481 APPENDIX II TECHNICAL METHODS AND STANDARD PROCEDURES TECHNICAL METHODS AND STANDARD PROCEDURES I. COLLECTION OF SURFACE WATER SAMPLES Surface water samples SW1, SW2, and SW3 were collected using a stainless-steel pitcher and new disposable nitrile gloves. The stainless-steel pitcher was decontaminated between each sample location. Prior to sample collection the stainless-steel pitcher was rinsed with surface water by submerging it into standing water within the surface water feature, then removing it from the water and dumping its contents on the bank of the surface water feature. The stainless-steel pitcher was then used to collect standing water within the surface water feature and transferred to sample containers provided by the North Carolina certified laboratory. Each sample was added slowly to their respective sample containers in order to minimize the loss of volatile compounds. All sample containers were stored in plastic Ziploc® bags and were immediately placed in a cooler with ice. Samples were delivered by a courier to a North Carolina certified laboratory, Waypoint, for analysis under chain-of-custody protocol. II. WATER-LEVEL MEASUREMENTS Depths to water within wells were measured with an electronic water-level indicator that is accurate to within 0.01 feet. Standard practice is to measure the water level after an adequate period of time has elapsed after removing the well seal to allow the water level in the well to equilibrate. Water-level measurements are collected throughout the monitoring-well network within the minimum possible time, and the electronic water-level indicator is decontaminated between wells to minimize the risk of cross contamination. III. WELL PURGING AND COLLECTION OF GROUNDWATER SAMPLES The monitoring wells were purged of three well volumes prior to groundwater sampling using either a new disposable bailer and new vinyl rope, or a peristaltic pump with new disposable polyethylene tubing. New disposable nitrile gloves were worn during the purging and sampling of each well. The groundwater samples were collected immediately after purging in order to minimize the loss of volatile compounds. Groundwater samples were collected in individual, disposable bailers and subsequently transferred to the appropriate laboratory-supplied containers. The groundwater samples were added slowly to the containers to minimize the loss of volatile compounds. Standard procedure for EPA Method 6200B analyses are to collect three groundwater samples from each well. Air bubbles were not allowed to be present in the vials once the Teflon®-lined cap was fitted to the vial. All sample containers were stored in plastic Ziploc® bags and were immediately placed in a cooler with ice. Samples were delivered to the North Carolina certified laboratory (Waypoint) for analysis under chain-of-custody protocol. APPENDIX III COPY OF LABORATORY REPORT AND CHAIN-OF-CUSTODY RECORDS This data package contains the analytical results for the project identified above and includes a Case Narrative, Sample Results and Chain of Custody. Unless otherwise noted, all samples were received in acceptable condition and processed according to the referenced methods. Data qualifiers are flagged individually on each sample. A key reference for the data qualifiers appears at the end of this case narrative. NC Certification No. 402 NC Drinking Water Cert No. 37735 SC Certification No. 99012 Case Narrative 12/27/19 10:46 Groundwater Manage. Assoc.(GREE) Katie Hackney 4300 Sapphire Court, Suite 100 Greenville, NC 27834 Project: 111601 Ainsleys Lab Submittal Date: 12/11/2019 Work Order: 9120181 Please call if you have any questions relating to this analytical report. Respectfully, WAYPOINT ANALYTICAL Project Management Manager Reviewed ByAngela D. Overcash Angela D. Overcash Project Management Manager Data Qualifiers Key Reference: J Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag). Method Detection LimitMDL Below Reporting LimitBRL Relative Percent DifferenceRPD *Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and reporting limit indicated with a J. This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 1 of 30 Sample Receipt Summary 12/27/2019 Work Order: 9120181 Client Sample ID MatrixLab Sample ID Date/Time Sampled Date/Time Received 9120181-01 12/10/19 12:06MW-2 12/11/19 10:15Water 9120181-02 12/10/19 12:10MW-3 12/11/19 10:15Water 9120181-03 12/10/19 12:30MW-14 12/11/19 10:15Water 9120181-04 12/10/19 14:15MW-23 12/11/19 10:15Water 9120181-05 12/10/19 12:40MW-27 12/11/19 10:15Water 9120181-06 12/10/19 15:00MW-28 12/11/19 10:15Water 9120181-07 12/10/19 13:40MW-30 12/11/19 10:15Water 9120181-08 12/10/19 11:57RW-4 12/11/19 10:15Water 9120181-09 12/10/19 12:50SW-3 12/11/19 10:15Water Samples were received in good condition at 2.9 degrees C unless otherwise noted. This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 2 of 30 Client ID ResultParameterMethod UnitsWaypoint ID Work Order: 9120181 12/27/2019 Summary of Detections 27 ug/L9120181-01 MW-2 1,2,4-Trimethylbenzene SM6200 B 3100 ug/L9120181-01 MW-2 Benzene SM6200 B 210 ug/L9120181-01 MW-2 Ethylbenzene SM6200 B 8.2 ug/L9120181-01 MW-2 Isopropyl Ether SM6200 B 50 ug/L9120181-01 MW-2 Isopropylbenzene (Cumene)SM6200 B 84 ug/L9120181-01 MW-2 m,p-Xylenes SM6200 B 27 ug/L9120181-01 MW-2 Methyl-tert-Butyl Ether SM6200 B 290 ug/L9120181-01 MW-2 Naphthalene SM6200 B 13 ug/L9120181-01 MW-2 n-Butylbenzene SM6200 B 140 ug/L9120181-01 MW-2 n-Propylbenzene SM6200 B 7.6 ug/L9120181-01 MW-2 o-Xylene SM6200 B 5.8 ug/L9120181-01 MW-2 sec-Butylbenzene SM6200 B 32 ug/L9120181-01 MW-2 Toluene SM6200 B 92 ug/L9120181-01 MW-2 Xylenes, total SM6200 B 920 ug/L9120181-02 MW-3 1,2,4-Trimethylbenzene SM6200 B 260 ug/L9120181-02 MW-3 1,3,5-Trimethylbenzene SM6200 B 5.8 ug/L9120181-02 MW-3 4-Isopropyltoluene SM6200 B 2800 ug/L9120181-02 MW-3 Benzene SM6200 B 450 ug/L9120181-02 MW-3 Ethylbenzene SM6200 B 16 ug/L9120181-02 MW-3 Isopropyl Ether SM6200 B 50 ug/L9120181-02 MW-3 Isopropylbenzene (Cumene)SM6200 B 1900 ug/L9120181-02 MW-3 m,p-Xylenes SM6200 B 510 ug/L9120181-02 MW-3 Methyl-tert-Butyl Ether SM6200 B 310 ug/L9120181-02 MW-3 Naphthalene SM6200 B 16 ug/L9120181-02 MW-3 n-Butylbenzene SM6200 B 130 ug/L9120181-02 MW-3 n-Propylbenzene SM6200 B 730 ug/L9120181-02 MW-3 o-Xylene SM6200 B 9.7 ug/L9120181-02 MW-3 sec-Butylbenzene SM6200 B 1500 ug/L9120181-02 MW-3 Toluene SM6200 B 2.3 J ug/L9120181-02 MW-3 Vinyl acetate SM6200 B 2600 ug/L9120181-02 MW-3 Xylenes, total SM6200 B 1.8 ug/L9120181-03 MW-14 1,2,4-Trimethylbenzene SM6200 B 0.72 ug/L9120181-03 MW-14 1,3,5-Trimethylbenzene SM6200 B 0.58 ug/L9120181-03 MW-14 4-Isopropyltoluene SM6200 B 330 ug/L9120181-03 MW-14 Benzene SM6200 B 6.0 ug/L9120181-03 MW-14 Ethylbenzene SM6200 B 12 ug/L9120181-03 MW-14 Isopropyl Ether SM6200 B 48 ug/L9120181-03 MW-14 Isopropylbenzene (Cumene)SM6200 B 64 ug/L9120181-03 MW-14 m,p-Xylenes SM6200 B 98 ug/L9120181-03 MW-14 Methyl-tert-Butyl Ether SM6200 B 300 ug/L9120181-03 MW-14 Naphthalene SM6200 B 3.7 ug/L9120181-03 MW-14 n-Butylbenzene SM6200 B 59 ug/L9120181-03 MW-14 n-Propylbenzene SM6200 B 3.0 ug/L9120181-03 MW-14 o-Xylene SM6200 B This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 3 of 30 Client ID ResultParameterMethod UnitsWaypoint ID Work Order: 9120181 12/27/2019 Summary of Detections 4.1 ug/L9120181-03 MW-14 sec-Butylbenzene SM6200 B 0.28 J ug/L9120181-03 MW-14 tert-Butylbenzene SM6200 B 8.6 ug/L9120181-03 MW-14 Toluene SM6200 B 67 ug/L9120181-03 MW-14 Xylenes, total SM6200 B 1.8 ug/L9120181-04 MW-23 Benzene SM6200 B 0.28 J ug/L9120181-04 MW-23 Isopropylbenzene (Cumene)SM6200 B 0.62 J ug/L9120181-04 MW-23 m,p-Xylenes SM6200 B 0.49 J ug/L9120181-04 MW-23 Methyl-tert-Butyl Ether SM6200 B 2.1 ug/L9120181-04 MW-23 Naphthalene SM6200 B 0.32 J ug/L9120181-04 MW-23 Toluene SM6200 B 0.62 J ug/L9120181-04 MW-23 Xylenes, total SM6200 B 0.57 ug/L9120181-05 MW-27 1,2-Dichloroethane SM6200 B 9.2 ug/L9120181-05 MW-27 Isopropyl Ether SM6200 B 270 ug/L9120181-05 MW-27 Methyl-tert-Butyl Ether SM6200 B 2.4 ug/L9120181-05 MW-27 Naphthalene SM6200 B 0.39 J ug/L9120181-06 MW-28 1,2,4-Trimethylbenzene SM6200 B 26 ug/L9120181-06 MW-28 Benzene SM6200 B 0.28 J ug/L9120181-06 MW-28 Ethylbenzene SM6200 B 1.3 ug/L9120181-06 MW-28 Isopropyl Ether SM6200 B 5.8 ug/L9120181-06 MW-28 Isopropylbenzene (Cumene)SM6200 B 5.6 ug/L9120181-06 MW-28 m,p-Xylenes SM6200 B 5.3 ug/L9120181-06 MW-28 Methyl-tert-Butyl Ether SM6200 B 11 ug/L9120181-06 MW-28 Naphthalene SM6200 B 13 ug/L9120181-06 MW-28 n-Propylbenzene SM6200 B 0.63 ug/L9120181-06 MW-28 o-Xylene SM6200 B 0.46 J ug/L9120181-06 MW-28 sec-Butylbenzene SM6200 B 1.5 ug/L9120181-06 MW-28 Toluene SM6200 B 6.2 ug/L9120181-06 MW-28 Xylenes, total SM6200 B 0.74 ug/L9120181-07 MW-30 1,2,4-Trimethylbenzene SM6200 B 0.51 ug/L9120181-07 MW-30 1,3,5-Trimethylbenzene SM6200 B 4.5 ug/L9120181-07 MW-30 Benzene SM6200 B 0.29 J ug/L9120181-07 MW-30 Ethylbenzene SM6200 B 0.49 J ug/L9120181-07 MW-30 Isopropyl Ether SM6200 B 11 ug/L9120181-07 MW-30 Isopropylbenzene (Cumene)SM6200 B 13 ug/L9120181-07 MW-30 m,p-Xylenes SM6200 B 18 ug/L9120181-07 MW-30 Methyl-tert-Butyl Ether SM6200 B 34 ug/L9120181-07 MW-30 Naphthalene SM6200 B 17 ug/L9120181-07 MW-30 n-Propylbenzene SM6200 B 0.55 ug/L9120181-07 MW-30 o-Xylene SM6200 B 0.31 J ug/L9120181-07 MW-30 sec-Butylbenzene SM6200 B 1.4 ug/L9120181-07 MW-30 Toluene SM6200 B 14 ug/L9120181-07 MW-30 Xylenes, total SM6200 B 28 ug/L9120181-08 RW-4 1,2,4-Trimethylbenzene SM6200 B 2.5 J ug/L9120181-08 RW-4 1,3,5-Trimethylbenzene SM6200 B 100 ug/L9120181-08 RW-4 Benzene SM6200 B This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 4 of 30 Client ID ResultParameterMethod UnitsWaypoint ID Work Order: 9120181 12/27/2019 Summary of Detections 71 ug/L9120181-08 RW-4 Ethylbenzene SM6200 B 6.3 ug/L9120181-08 RW-4 Isopropylbenzene (Cumene)SM6200 B 19 ug/L9120181-08 RW-4 m,p-Xylenes SM6200 B 39 ug/L9120181-08 RW-4 Naphthalene SM6200 B 19 ug/L9120181-08 RW-4 n-Butylbenzene SM6200 B 22 ug/L9120181-08 RW-4 n-Propylbenzene SM6200 B 2.5 J ug/L9120181-08 RW-4 o-Xylene SM6200 B 4.4 J ug/L9120181-08 RW-4 sec-Butylbenzene SM6200 B 8.2 ug/L9120181-08 RW-4 Toluene SM6200 B 22 ug/L9120181-08 RW-4 Xylenes, total SM6200 B 7.8 J ug/L9120181-09 SW-3 Acetone SM6200 B 0.22 J ug/L9120181-09 SW-3 Methyl-tert-Butyl Ether SM6200 B 1.8 ug/L9120181-09 SW-3 Naphthalene SM6200 B This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 5 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-2 Sample ID: 9120181-01 Work Order: 9120181 Time Collected: 12/10/19 12:06 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 1.11,1,1,2-Tetrachloroethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.611,1,1-Trichloroethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.361,1,2,2-Tetrachloroethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.661,1,2-Trichloroethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.831,1-Dichloroethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.831,1-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.511,1-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 4.01,2,3-Trichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 1.41,2,3-Trichloropropane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 1.31,2,4-Trichlorobenzene 27 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.541,2,4-Trimethylbenzene BRL SM6200 B P9L0380102012/19/19 21:35 ANGug/L 1.71,2-Dibromo-3-chloropropane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.511,2-Dibromoethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.761,2-Dichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.661,2-Dichloroethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 1.11,2-Dichloropropane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.761,3,5-Trimethylbenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.541,3-Dichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.431,3-Dichloropropane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.501,4-Dichlorobenzene BRL SM6200 B P9L0380102012/19/19 21:35 ANGug/L 1.12,2-Dichloropropane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.662-Chlorotoluene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.504-Chlorotoluene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.894-Isopropyltoluene BRL SM6200 B P9L03801010012/19/19 21:35 ANGug/L 3.1Acetone 3100 SM6200 B P9L03801005012/19/19 22:01 ANGug/L 4.8Benzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.57Bromobenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 1.4Bromochloromethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.62Bromodichloromethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.40Bromoform BRL SM6200 B P9L0380101012/19/19 21:35 ANGug/L 1.8Bromomethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 1.1Carbon Tetrachloride BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.62Chlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 2.2Chloroethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.76Chloroform BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.79Chloromethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.56cis-1,2-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.79cis-1,3-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.81Dibromochloromethane BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.65Dibromomethane BRL SM6200 B P9L0380101012/19/19 21:35 ANGug/L 1.1Dichlorodifluoromethane BRL SM6200 B P9L038010200012/19/19 21:35 ANGug/L 270Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 6 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-2 Sample ID: 9120181-01 Work Order: 9120181 Time Collected: 12/10/19 12:06 Time Submitted: 12/11/19 10:15 210 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.61Ethylbenzene BRL SM6200 B P9L0380102012/19/19 21:35 ANGug/L 1.6Hexachlorobutadiene 8.2 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.50Isopropyl Ether 50 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.54Isopropylbenzene (Cumene) 84 SM6200 B P9L0380101012/19/19 21:35 ANGug/L 1.2m,p-Xylenes BRL SM6200 B P9L0380101012/19/19 21:35 ANGug/L 0.65Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L0380105012/19/19 21:35 ANGug/L 2.4Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L0380101012/19/19 21:35 ANGug/L 0.78Methyl Isobutyl Ketone BRL SM6200 B P9L0380102012/19/19 21:35 ANGug/L 0.83Methylene Chloride 27 SM6200 B P9L0380101012/19/19 21:35 ANGug/L 0.42Methyl-tert-Butyl Ether 290 SM6200 B P9L0380101012/19/19 21:35 ANGug/L 1.9Naphthalene 13 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.76n-Butylbenzene 140 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.87n-Propylbenzene 7.6 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.44o-Xylene 5.8 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.76sec-Butylbenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.47Styrene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.88tert-Butylbenzene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.98Tetrachloroethylene 32 SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.44Toluene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.70trans-1,2-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 1.2trans-1,3-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.78Trichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.62Trichlorofluoromethane BRL SM6200 B P9L0380105012/19/19 21:35 ANGug/L 0.60Vinyl acetate BRL SM6200 B P9L0380105.0 12/19/19 21:35 ANGug/L 0.97Vinyl chloride 92 SM6200 B P9L0380101512/19/19 21:35 ANGug/L 1.5Xylenes, total Surrogate Recovery Control Limits 70-130101 %4-Bromofluorobenzene 70-13098 %Dibromofluoromethane 70-130100 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 7 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-3 Sample ID: 9120181-02 Work Order: 9120181 Time Collected: 12/10/19 12:10 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 1.11,1,1,2-Tetrachloroethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.611,1,1-Trichloroethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.361,1,2,2-Tetrachloroethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.661,1,2-Trichloroethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.831,1-Dichloroethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.831,1-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.511,1-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 4.01,2,3-Trichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 1.41,2,3-Trichloropropane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 1.31,2,4-Trichlorobenzene 920 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.541,2,4-Trimethylbenzene BRL SM6200 B P9L0380102012/19/19 22:28 ANGug/L 1.71,2-Dibromo-3-chloropropane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.511,2-Dibromoethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.761,2-Dichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.661,2-Dichloroethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 1.11,2-Dichloropropane 260 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.761,3,5-Trimethylbenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.541,3-Dichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.431,3-Dichloropropane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.501,4-Dichlorobenzene BRL SM6200 B P9L0380102012/19/19 22:28 ANGug/L 1.12,2-Dichloropropane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.662-Chlorotoluene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.504-Chlorotoluene 5.8 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.894-Isopropyltoluene BRL SM6200 B P9L03801010012/19/19 22:28 ANGug/L 3.1Acetone 2800 SM6200 B P9L03801005012/19/19 22:54 ANGug/L 4.8Benzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.57Bromobenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 1.4Bromochloromethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.62Bromodichloromethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.40Bromoform BRL SM6200 B P9L0380101012/19/19 22:28 ANGug/L 1.8Bromomethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 1.1Carbon Tetrachloride BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.62Chlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 2.2Chloroethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.76Chloroform BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.79Chloromethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.56cis-1,2-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.79cis-1,3-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.81Dibromochloromethane BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.65Dibromomethane BRL SM6200 B P9L0380101012/19/19 22:28 ANGug/L 1.1Dichlorodifluoromethane BRL SM6200 B P9L038010200012/19/19 22:28 ANGug/L 270Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 8 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-3 Sample ID: 9120181-02 Work Order: 9120181 Time Collected: 12/10/19 12:10 Time Submitted: 12/11/19 10:15 450 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.61Ethylbenzene BRL SM6200 B P9L0380102012/19/19 22:28 ANGug/L 1.6Hexachlorobutadiene 16 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.50Isopropyl Ether 50 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.54Isopropylbenzene (Cumene) 1900 SM6200 B P9L0380101012/19/19 22:28 ANGug/L 1.2m,p-Xylenes BRL SM6200 B P9L0380101012/19/19 22:28 ANGug/L 0.65Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L0380105012/19/19 22:28 ANGug/L 2.4Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L0380101012/19/19 22:28 ANGug/L 0.78Methyl Isobutyl Ketone BRL SM6200 B P9L0380102012/19/19 22:28 ANGug/L 0.83Methylene Chloride 510 SM6200 B P9L0380101012/19/19 22:28 ANGug/L 0.42Methyl-tert-Butyl Ether 310 SM6200 B P9L0380101012/19/19 22:28 ANGug/L 1.9Naphthalene 16 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.76n-Butylbenzene 130 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.87n-Propylbenzene 730 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.44o-Xylene 9.7 SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.76sec-Butylbenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.47Styrene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.88tert-Butylbenzene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.98Tetrachloroethylene 1500 SM6200 B P9L03801005012/19/19 22:54 ANGug/L 4.4Toluene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.70trans-1,2-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 1.2trans-1,3-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.78Trichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.62Trichlorofluoromethane 2.3 SM6200 B P9L0380105012/19/19 22:28 ANGJug/L 0.60Vinyl acetate BRL SM6200 B P9L0380105.0 12/19/19 22:28 ANGug/L 0.97Vinyl chloride 2600 SM6200 B P9L0380101512/19/19 22:28 ANGug/L 1.5Xylenes, total Surrogate Recovery Control Limits 70-130100 %4-Bromofluorobenzene 70-13099 %Dibromofluoromethane 70-13099 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 9 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-14 Sample ID: 9120181-03 Work Order: 9120181 Time Collected: 12/10/19 12:30 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.111,1,1,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0611,1,1-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0361,1,2,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0661,1,2-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0831,1-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0831,1-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0511,1-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.401,2,3-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.141,2,3-Trichloropropane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.131,2,4-Trichlorobenzene 1.8 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0541,2,4-Trimethylbenzene BRL SM6200 B P9L038012.0 12/19/19 19:51 ANGug/L 0.171,2-Dibromo-3-chloropropane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0511,2-Dibromoethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0761,2-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0661,2-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.111,2-Dichloropropane 0.72 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0761,3,5-Trimethylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0541,3-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0431,3-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0501,4-Dichlorobenzene BRL SM6200 B P9L038012.0 12/19/19 19:51 ANGug/L 0.112,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0662-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0504-Chlorotoluene 0.58 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.0894-Isopropyltoluene BRL SM6200 B P9L038011012/19/19 19:51 ANGug/L 0.31Acetone 330 SM6200 B P9L0380105.0 12/19/19 20:17 ANGug/L 0.48Benzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.057Bromobenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.14Bromochloromethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.062Bromodichloromethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.040Bromoform BRL SM6200 B P9L038011.0 12/19/19 19:51 ANGug/L 0.18Bromomethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.11Carbon Tetrachloride BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.062Chlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.22Chloroethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.076Chloroform BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.079Chloromethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.056cis-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.079cis-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.081Dibromochloromethane BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.065Dibromomethane BRL SM6200 B P9L038011.0 12/19/19 19:51 ANGug/L 0.11Dichlorodifluoromethane BRL SM6200 B P9L0380120012/19/19 19:51 ANGug/L 27Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 10 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-14 Sample ID: 9120181-03 Work Order: 9120181 Time Collected: 12/10/19 12:30 Time Submitted: 12/11/19 10:15 6.0 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.061Ethylbenzene BRL SM6200 B P9L038012.0 12/19/19 19:51 ANGug/L 0.16Hexachlorobutadiene 12 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.050Isopropyl Ether 48 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.054Isopropylbenzene (Cumene) 64 SM6200 B P9L038011.0 12/19/19 19:51 ANGug/L 0.12m,p-Xylenes BRL SM6200 B P9L038011.0 12/19/19 19:51 ANGug/L 0.065Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L038015.0 12/19/19 19:51 ANGug/L 0.24Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L038011.0 12/19/19 19:51 ANGug/L 0.078Methyl Isobutyl Ketone BRL SM6200 B P9L038012.0 12/19/19 19:51 ANGug/L 0.083Methylene Chloride 98 SM6200 B P9L0380101012/19/19 20:17 ANGug/L 0.42Methyl-tert-Butyl Ether 300 SM6200 B P9L0380101012/19/19 20:17 ANGug/L 1.9Naphthalene 3.7 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.076n-Butylbenzene 59 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.087n-Propylbenzene 3.0 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.044o-Xylene 4.1 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.076sec-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.047Styrene 0.28 SM6200 B P9L038010.50 12/19/19 19:51 ANGJug/L 0.088tert-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.098Tetrachloroethylene 8.6 SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.044Toluene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.070trans-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.12trans-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.078Trichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.062Trichlorofluoromethane BRL SM6200 B P9L038015.0 12/19/19 19:51 ANGug/L 0.060Vinyl acetate BRL SM6200 B P9L038010.50 12/19/19 19:51 ANGug/L 0.097Vinyl chloride 67 SM6200 B P9L038011.5 12/19/19 19:51 ANGug/L 0.15Xylenes, total Surrogate Recovery Control Limits 70-130101 %4-Bromofluorobenzene 70-13098 %Dibromofluoromethane 70-13099 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 11 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-23 Sample ID: 9120181-04 Work Order: 9120181 Time Collected: 12/10/19 14:15 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.111,1,1,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0611,1,1-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0361,1,2,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0661,1,2-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0831,1-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0831,1-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0511,1-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.401,2,3-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.141,2,3-Trichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.131,2,4-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0541,2,4-Trimethylbenzene BRL SM6200 B P9L038012.0 12/19/19 18:06 ANGug/L 0.171,2-Dibromo-3-chloropropane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0511,2-Dibromoethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0761,2-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0661,2-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.111,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0761,3,5-Trimethylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0541,3-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0431,3-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0501,4-Dichlorobenzene BRL SM6200 B P9L038012.0 12/19/19 18:06 ANGug/L 0.112,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0662-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0504-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.0894-Isopropyltoluene BRL SM6200 B P9L038011012/19/19 18:06 ANGug/L 0.31Acetone 1.8 SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.048Benzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.057Bromobenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.14Bromochloromethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.062Bromodichloromethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.040Bromoform BRL SM6200 B P9L038011.0 12/19/19 18:06 ANGug/L 0.18Bromomethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.11Carbon Tetrachloride BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.062Chlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.22Chloroethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.076Chloroform BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.079Chloromethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.056cis-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.079cis-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.081Dibromochloromethane BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.065Dibromomethane BRL SM6200 B P9L038011.0 12/19/19 18:06 ANGug/L 0.11Dichlorodifluoromethane BRL SM6200 B P9L0380120012/19/19 18:06 ANGug/L 27Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 12 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-23 Sample ID: 9120181-04 Work Order: 9120181 Time Collected: 12/10/19 14:15 Time Submitted: 12/11/19 10:15 BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.061Ethylbenzene BRL SM6200 B P9L038012.0 12/19/19 18:06 ANGug/L 0.16Hexachlorobutadiene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.050Isopropyl Ether 0.28 SM6200 B P9L038010.50 12/19/19 18:06 ANGJug/L 0.054Isopropylbenzene (Cumene) 0.62 SM6200 B P9L038011.0 12/19/19 18:06 ANGJug/L 0.12m,p-Xylenes BRL SM6200 B P9L038011.0 12/19/19 18:06 ANGug/L 0.065Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L038015.0 12/19/19 18:06 ANGug/L 0.24Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L038011.0 12/19/19 18:06 ANGug/L 0.078Methyl Isobutyl Ketone BRL SM6200 B P9L038012.0 12/19/19 18:06 ANGug/L 0.083Methylene Chloride 0.49 SM6200 B P9L038011.0 12/19/19 18:06 ANGJug/L 0.042Methyl-tert-Butyl Ether 2.1 SM6200 B P9L038011.0 12/19/19 18:06 ANGug/L 0.19Naphthalene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.076n-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.087n-Propylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.044o-Xylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.076sec-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.047Styrene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.088tert-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.098Tetrachloroethylene 0.32 SM6200 B P9L038010.50 12/19/19 18:06 ANGJug/L 0.044Toluene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.070trans-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.12trans-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.078Trichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.062Trichlorofluoromethane BRL SM6200 B P9L038015.0 12/19/19 18:06 ANGug/L 0.060Vinyl acetate BRL SM6200 B P9L038010.50 12/19/19 18:06 ANGug/L 0.097Vinyl chloride 0.62 SM6200 B P9L038011.5 12/19/19 18:06 ANGJug/L 0.15Xylenes, total Surrogate Recovery Control Limits 70-130101 %4-Bromofluorobenzene 70-13099 %Dibromofluoromethane 70-130101 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 13 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-27 Sample ID: 9120181-05 Work Order: 9120181 Time Collected: 12/10/19 12:40 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.111,1,1,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0611,1,1-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0361,1,2,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0661,1,2-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0831,1-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0831,1-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0511,1-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.401,2,3-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.141,2,3-Trichloropropane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.131,2,4-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0541,2,4-Trimethylbenzene BRL SM6200 B P9L038012.0 12/19/19 20:43 ANGug/L 0.171,2-Dibromo-3-chloropropane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0511,2-Dibromoethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0761,2-Dichlorobenzene 0.57 SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0661,2-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.111,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0761,3,5-Trimethylbenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0541,3-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0431,3-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0501,4-Dichlorobenzene BRL SM6200 B P9L038012.0 12/19/19 20:43 ANGug/L 0.112,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0662-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0504-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.0894-Isopropyltoluene BRL SM6200 B P9L038011012/19/19 20:43 ANGug/L 0.31Acetone BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.048Benzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.057Bromobenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.14Bromochloromethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.062Bromodichloromethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.040Bromoform BRL SM6200 B P9L038011.0 12/19/19 20:43 ANGug/L 0.18Bromomethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.11Carbon Tetrachloride BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.062Chlorobenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.22Chloroethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.076Chloroform BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.079Chloromethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.056cis-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.079cis-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.081Dibromochloromethane BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.065Dibromomethane BRL SM6200 B P9L038011.0 12/19/19 20:43 ANGug/L 0.11Dichlorodifluoromethane BRL SM6200 B P9L0380120012/19/19 20:43 ANGug/L 27Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 14 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-27 Sample ID: 9120181-05 Work Order: 9120181 Time Collected: 12/10/19 12:40 Time Submitted: 12/11/19 10:15 BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.061Ethylbenzene BRL SM6200 B P9L038012.0 12/19/19 20:43 ANGug/L 0.16Hexachlorobutadiene 9.2 SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.050Isopropyl Ether BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.054Isopropylbenzene (Cumene) BRL SM6200 B P9L038011.0 12/19/19 20:43 ANGug/L 0.12m,p-Xylenes BRL SM6200 B P9L038011.0 12/19/19 20:43 ANGug/L 0.065Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L038015.0 12/19/19 20:43 ANGug/L 0.24Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L038011.0 12/19/19 20:43 ANGug/L 0.078Methyl Isobutyl Ketone BRL SM6200 B P9L038012.0 12/19/19 20:43 ANGug/L 0.083Methylene Chloride 270 SM6200 B P9L0380101012/19/19 21:09 ANGug/L 0.42Methyl-tert-Butyl Ether 2.4 SM6200 B P9L038011.0 12/19/19 20:43 ANGug/L 0.19Naphthalene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.076n-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.087n-Propylbenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.044o-Xylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.076sec-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.047Styrene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.088tert-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.098Tetrachloroethylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.044Toluene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.070trans-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.12trans-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.078Trichloroethylene BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.062Trichlorofluoromethane BRL SM6200 B P9L038015.0 12/19/19 20:43 ANGug/L 0.060Vinyl acetate BRL SM6200 B P9L038010.50 12/19/19 20:43 ANGug/L 0.097Vinyl chloride BRL SM6200 B P9L038011.5 12/19/19 20:43 ANGug/L 0.15Xylenes, total Surrogate Recovery Control Limits 70-130103 %4-Bromofluorobenzene 70-13098 %Dibromofluoromethane 70-130100 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 15 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-28 Sample ID: 9120181-06 Work Order: 9120181 Time Collected: 12/10/19 15:00 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.111,1,1,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0611,1,1-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0361,1,2,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0661,1,2-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0831,1-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0831,1-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0511,1-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.401,2,3-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.141,2,3-Trichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.131,2,4-Trichlorobenzene 0.39 SM6200 B P9L038010.50 12/19/19 18:32 ANGJug/L 0.0541,2,4-Trimethylbenzene BRL SM6200 B P9L038012.0 12/19/19 18:32 ANGug/L 0.171,2-Dibromo-3-chloropropane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0511,2-Dibromoethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0761,2-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0661,2-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.111,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0761,3,5-Trimethylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0541,3-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0431,3-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0501,4-Dichlorobenzene BRL SM6200 B P9L038012.0 12/19/19 18:32 ANGug/L 0.112,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0662-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0504-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.0894-Isopropyltoluene BRL SM6200 B P9L038011012/19/19 18:32 ANGug/L 0.31Acetone 26 SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.048Benzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.057Bromobenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.14Bromochloromethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.062Bromodichloromethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.040Bromoform BRL SM6200 B P9L038011.0 12/19/19 18:32 ANGug/L 0.18Bromomethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.11Carbon Tetrachloride BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.062Chlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.22Chloroethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.076Chloroform BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.079Chloromethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.056cis-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.079cis-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.081Dibromochloromethane BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.065Dibromomethane BRL SM6200 B P9L038011.0 12/19/19 18:32 ANGug/L 0.11Dichlorodifluoromethane BRL SM6200 B P9L0380120012/19/19 18:32 ANGug/L 27Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 16 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-28 Sample ID: 9120181-06 Work Order: 9120181 Time Collected: 12/10/19 15:00 Time Submitted: 12/11/19 10:15 0.28 SM6200 B P9L038010.50 12/19/19 18:32 ANGJug/L 0.061Ethylbenzene BRL SM6200 B P9L038012.0 12/19/19 18:32 ANGug/L 0.16Hexachlorobutadiene 1.3 SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.050Isopropyl Ether 5.8 SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.054Isopropylbenzene (Cumene) 5.6 SM6200 B P9L038011.0 12/19/19 18:32 ANGug/L 0.12m,p-Xylenes BRL SM6200 B P9L038011.0 12/19/19 18:32 ANGug/L 0.065Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L038015.0 12/19/19 18:32 ANGug/L 0.24Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L038011.0 12/19/19 18:32 ANGug/L 0.078Methyl Isobutyl Ketone BRL SM6200 B P9L038012.0 12/19/19 18:32 ANGug/L 0.083Methylene Chloride 5.3 SM6200 B P9L038011.0 12/19/19 18:32 ANGug/L 0.042Methyl-tert-Butyl Ether 11 SM6200 B P9L038011.0 12/19/19 18:32 ANGug/L 0.19Naphthalene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.076n-Butylbenzene 13 SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.087n-Propylbenzene 0.63 SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.044o-Xylene 0.46 SM6200 B P9L038010.50 12/19/19 18:32 ANGJug/L 0.076sec-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.047Styrene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.088tert-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.098Tetrachloroethylene 1.5 SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.044Toluene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.070trans-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.12trans-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.078Trichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.062Trichlorofluoromethane BRL SM6200 B P9L038015.0 12/19/19 18:32 ANGug/L 0.060Vinyl acetate BRL SM6200 B P9L038010.50 12/19/19 18:32 ANGug/L 0.097Vinyl chloride 6.2 SM6200 B P9L038011.5 12/19/19 18:32 ANGug/L 0.15Xylenes, total Surrogate Recovery Control Limits 70-130100 %4-Bromofluorobenzene 70-13099 %Dibromofluoromethane 70-130101 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 17 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-30 Sample ID: 9120181-07 Work Order: 9120181 Time Collected: 12/10/19 13:40 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.111,1,1,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0611,1,1-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0361,1,2,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0661,1,2-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0831,1-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0831,1-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0511,1-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.401,2,3-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.141,2,3-Trichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.131,2,4-Trichlorobenzene 0.74 SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0541,2,4-Trimethylbenzene BRL SM6200 B P9L038012.0 12/19/19 18:58 ANGug/L 0.171,2-Dibromo-3-chloropropane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0511,2-Dibromoethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0761,2-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0661,2-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.111,2-Dichloropropane 0.51 SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0761,3,5-Trimethylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0541,3-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0431,3-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0501,4-Dichlorobenzene BRL SM6200 B P9L038012.0 12/19/19 18:58 ANGug/L 0.112,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0662-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0504-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.0894-Isopropyltoluene BRL SM6200 B P9L038011012/19/19 18:58 ANGug/L 0.31Acetone 4.5 SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.048Benzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.057Bromobenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.14Bromochloromethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.062Bromodichloromethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.040Bromoform BRL SM6200 B P9L038011.0 12/19/19 18:58 ANGug/L 0.18Bromomethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.11Carbon Tetrachloride BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.062Chlorobenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.22Chloroethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.076Chloroform BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.079Chloromethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.056cis-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.079cis-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.081Dibromochloromethane BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.065Dibromomethane BRL SM6200 B P9L038011.0 12/19/19 18:58 ANGug/L 0.11Dichlorodifluoromethane BRL SM6200 B P9L0380120012/19/19 18:58 ANGug/L 27Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 18 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: MW-30 Sample ID: 9120181-07 Work Order: 9120181 Time Collected: 12/10/19 13:40 Time Submitted: 12/11/19 10:15 0.29 SM6200 B P9L038010.50 12/19/19 18:58 ANGJug/L 0.061Ethylbenzene BRL SM6200 B P9L038012.0 12/19/19 18:58 ANGug/L 0.16Hexachlorobutadiene 0.49 SM6200 B P9L038010.50 12/19/19 18:58 ANGJug/L 0.050Isopropyl Ether 11 SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.054Isopropylbenzene (Cumene) 13 SM6200 B P9L038011.0 12/19/19 18:58 ANGug/L 0.12m,p-Xylenes BRL SM6200 B P9L038011.0 12/19/19 18:58 ANGug/L 0.065Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L038015.0 12/19/19 18:58 ANGug/L 0.24Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L038011.0 12/19/19 18:58 ANGug/L 0.078Methyl Isobutyl Ketone BRL SM6200 B P9L038012.0 12/19/19 18:58 ANGug/L 0.083Methylene Chloride 18 SM6200 B P9L038011.0 12/19/19 18:58 ANGug/L 0.042Methyl-tert-Butyl Ether 34 SM6200 B P9L038011.0 12/19/19 18:58 ANGug/L 0.19Naphthalene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.076n-Butylbenzene 17 SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.087n-Propylbenzene 0.55 SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.044o-Xylene 0.31 SM6200 B P9L038010.50 12/19/19 18:58 ANGJug/L 0.076sec-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.047Styrene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.088tert-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.098Tetrachloroethylene 1.4 SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.044Toluene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.070trans-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.12trans-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.078Trichloroethylene BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.062Trichlorofluoromethane BRL SM6200 B P9L038015.0 12/19/19 18:58 ANGug/L 0.060Vinyl acetate BRL SM6200 B P9L038010.50 12/19/19 18:58 ANGug/L 0.097Vinyl chloride 14 SM6200 B P9L038011.5 12/19/19 18:58 ANGug/L 0.15Xylenes, total Surrogate Recovery Control Limits 70-130100 %4-Bromofluorobenzene 70-13099 %Dibromofluoromethane 70-130101 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 19 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: RW-4 Sample ID: 9120181-08 Work Order: 9120181 Time Collected: 12/10/19 11:57 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 1.11,1,1,2-Tetrachloroethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.611,1,1-Trichloroethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.361,1,2,2-Tetrachloroethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.661,1,2-Trichloroethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.831,1-Dichloroethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.831,1-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.511,1-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 4.01,2,3-Trichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 1.41,2,3-Trichloropropane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 1.31,2,4-Trichlorobenzene 28 SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.541,2,4-Trimethylbenzene BRL SM6200 B P9L0380102012/19/19 23:20 ANGug/L 1.71,2-Dibromo-3-chloropropane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.511,2-Dibromoethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.761,2-Dichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.661,2-Dichloroethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 1.11,2-Dichloropropane 2.5 SM6200 B P9L0380105.0 12/19/19 23:20 ANGJug/L 0.761,3,5-Trimethylbenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.541,3-Dichlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.431,3-Dichloropropane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.501,4-Dichlorobenzene BRL SM6200 B P9L0380102012/19/19 23:20 ANGug/L 1.12,2-Dichloropropane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.662-Chlorotoluene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.504-Chlorotoluene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.894-Isopropyltoluene BRL SM6200 B P9L03801010012/19/19 23:20 ANGug/L 3.1Acetone 100 SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.48Benzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.57Bromobenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 1.4Bromochloromethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.62Bromodichloromethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.40Bromoform BRL SM6200 B P9L0380101012/19/19 23:20 ANGug/L 1.8Bromomethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 1.1Carbon Tetrachloride BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.62Chlorobenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 2.2Chloroethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.76Chloroform BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.79Chloromethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.56cis-1,2-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.79cis-1,3-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.81Dibromochloromethane BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.65Dibromomethane BRL SM6200 B P9L0380101012/19/19 23:20 ANGug/L 1.1Dichlorodifluoromethane BRL SM6200 B P9L038010200012/19/19 23:20 ANGug/L 270Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 20 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: RW-4 Sample ID: 9120181-08 Work Order: 9120181 Time Collected: 12/10/19 11:57 Time Submitted: 12/11/19 10:15 71 SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.61Ethylbenzene BRL SM6200 B P9L0380102012/19/19 23:20 ANGug/L 1.6Hexachlorobutadiene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.50Isopropyl Ether 6.3 SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.54Isopropylbenzene (Cumene) 19 SM6200 B P9L0380101012/19/19 23:20 ANGug/L 1.2m,p-Xylenes BRL SM6200 B P9L0380101012/19/19 23:20 ANGug/L 0.65Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L0380105012/19/19 23:20 ANGug/L 2.4Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L0380101012/19/19 23:20 ANGug/L 0.78Methyl Isobutyl Ketone BRL SM6200 B P9L0380102012/19/19 23:20 ANGug/L 0.83Methylene Chloride BRL SM6200 B P9L0380101012/19/19 23:20 ANGug/L 0.42Methyl-tert-Butyl Ether 39 SM6200 B P9L0380101012/19/19 23:20 ANGug/L 1.9Naphthalene 19 SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.76n-Butylbenzene 22 SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.87n-Propylbenzene 2.5 SM6200 B P9L0380105.0 12/19/19 23:20 ANGJug/L 0.44o-Xylene 4.4 SM6200 B P9L0380105.0 12/19/19 23:20 ANGJug/L 0.76sec-Butylbenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.47Styrene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.88tert-Butylbenzene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.98Tetrachloroethylene 8.2 SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.44Toluene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.70trans-1,2-Dichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 1.2trans-1,3-Dichloropropylene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.78Trichloroethylene BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.62Trichlorofluoromethane BRL SM6200 B P9L0380105012/19/19 23:20 ANGug/L 0.60Vinyl acetate BRL SM6200 B P9L0380105.0 12/19/19 23:20 ANGug/L 0.97Vinyl chloride 22 SM6200 B P9L0380101512/19/19 23:20 ANGug/L 1.5Xylenes, total Surrogate Recovery Control Limits 70-130102 %4-Bromofluorobenzene 70-13097 %Dibromofluoromethane 70-130100 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 21 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: SW-3 Sample ID: 9120181-09 Work Order: 9120181 Time Collected: 12/10/19 12:50 Time Submitted: 12/11/19 10:15 Volatile Organic Compounds by GC/MS BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.111,1,1,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0611,1,1-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0361,1,2,2-Tetrachloroethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0661,1,2-Trichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0831,1-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0831,1-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0511,1-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.401,2,3-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.141,2,3-Trichloropropane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.131,2,4-Trichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0541,2,4-Trimethylbenzene BRL SM6200 B P9L038012.0 12/19/19 19:25 ANGug/L 0.171,2-Dibromo-3-chloropropane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0511,2-Dibromoethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0761,2-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0661,2-Dichloroethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.111,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0761,3,5-Trimethylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0541,3-Dichlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0431,3-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0501,4-Dichlorobenzene BRL SM6200 B P9L038012.0 12/19/19 19:25 ANGug/L 0.112,2-Dichloropropane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0662-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0504-Chlorotoluene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.0894-Isopropyltoluene 7.8 SM6200 B P9L038011012/19/19 19:25 ANGJug/L 0.31Acetone BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.048Benzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.057Bromobenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.14Bromochloromethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.062Bromodichloromethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.040Bromoform BRL SM6200 B P9L038011.0 12/19/19 19:25 ANGug/L 0.18Bromomethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.11Carbon Tetrachloride BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.062Chlorobenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.22Chloroethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.076Chloroform BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.079Chloromethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.056cis-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.079cis-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.081Dibromochloromethane BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.065Dibromomethane BRL SM6200 B P9L038011.0 12/19/19 19:25 ANGug/L 0.11Dichlorodifluoromethane BRL SM6200 B P9L0380120012/19/19 19:25 ANGug/L 27Ethanol This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 22 of 30 Laboratory Report 12/27/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Sample Matrix: Water Client Sample ID: SW-3 Sample ID: 9120181-09 Work Order: 9120181 Time Collected: 12/10/19 12:50 Time Submitted: 12/11/19 10:15 BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.061Ethylbenzene BRL SM6200 B P9L038012.0 12/19/19 19:25 ANGug/L 0.16Hexachlorobutadiene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.050Isopropyl Ether BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.054Isopropylbenzene (Cumene) BRL SM6200 B P9L038011.0 12/19/19 19:25 ANGug/L 0.12m,p-Xylenes BRL SM6200 B P9L038011.0 12/19/19 19:25 ANGug/L 0.065Methyl Butyl Ketone (2-Hexanone) BRL SM6200 B P9L038015.0 12/19/19 19:25 ANGug/L 0.24Methyl Ethyl Ketone (2-Butanone) BRL SM6200 B P9L038011.0 12/19/19 19:25 ANGug/L 0.078Methyl Isobutyl Ketone BRL SM6200 B P9L038012.0 12/19/19 19:25 ANGug/L 0.083Methylene Chloride 0.22 SM6200 B P9L038011.0 12/19/19 19:25 ANGJug/L 0.042Methyl-tert-Butyl Ether 1.8 SM6200 B P9L038011.0 12/19/19 19:25 ANGug/L 0.19Naphthalene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.076n-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.087n-Propylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.044o-Xylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.076sec-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.047Styrene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.088tert-Butylbenzene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.098Tetrachloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.044Toluene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.070trans-1,2-Dichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.12trans-1,3-Dichloropropylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.078Trichloroethylene BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.062Trichlorofluoromethane BRL SM6200 B P9L038015.0 12/19/19 19:25 ANGug/L 0.060Vinyl acetate BRL SM6200 B P9L038010.50 12/19/19 19:25 ANGug/L 0.097Vinyl chloride BRL SM6200 B P9L038011.5 12/19/19 19:25 ANGug/L 0.15Xylenes, total Surrogate Recovery Control Limits 70-13099 %4-Bromofluorobenzene 70-130100 %Dibromofluoromethane 70-13085 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 23 of 30 12/27/19 Level II QC Report 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Work Order: 9120181 Time Submitted: 12/11/2019 10:15:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0380 - SM6200 B Blank (P9L0380-BLK1)Prepared & Analyzed: 12/19/19 1,1,1,2-Tetrachloroethane ug/LBRL0.50 1,1,1-Trichloroethane ug/LBRL0.50 1,1,2,2-Tetrachloroethane ug/LBRL0.50 1,1,2-Trichloroethane ug/LBRL0.50 1,1-Dichloroethane ug/LBRL0.50 1,1-Dichloroethylene ug/LBRL0.50 1,1-Dichloropropylene ug/LBRL0.50 1,2,3-Trichlorobenzene ug/LBRL0.50 1,2,3-Trichloropropane ug/LBRL0.50 1,2,4-Trichlorobenzene ug/LBRL0.50 1,2,4-Trimethylbenzene ug/LBRL0.50 1,2-Dibromo-3-chloropropane ug/LBRL2.0 1,2-Dibromoethane ug/LBRL0.50 1,2-Dichlorobenzene ug/LBRL0.50 1,2-Dichloroethane ug/LBRL0.50 1,2-Dichloropropane ug/LBRL0.50 1,3,5-Trimethylbenzene ug/LBRL0.50 1,3-Dichlorobenzene ug/LBRL0.50 1,3-Dichloropropane ug/LBRL0.50 1,4-Dichlorobenzene ug/LBRL0.50 2,2-Dichloropropane ug/LBRL2.0 2-Chlorotoluene ug/LBRL0.50 4-Chlorotoluene ug/LBRL0.50 4-Isopropyltoluene ug/LBRL0.50 Acetone ug/LBRL10 Benzene ug/LBRL0.50 Bromobenzene ug/LBRL0.50 Bromochloromethane ug/LBRL0.50 Bromodichloromethane ug/LBRL0.50 Bromoform ug/LBRL0.50 Bromomethane ug/LBRL1.0 Carbon Tetrachloride ug/LBRL0.50 Chlorobenzene ug/LBRL0.50 Chloroethane ug/LBRL0.50 Chloroform ug/LBRL0.50 Chloromethane ug/LBRL0.50 cis-1,2-Dichloroethylene ug/LBRL0.50 cis-1,3-Dichloropropylene ug/LBRL0.50 Dibromochloromethane ug/LBRL0.50 Dibromomethane ug/LBRL0.50 Dichlorodifluoromethane ug/LBRL1.0 Ethanol ug/LBRL200 Ethylbenzene ug/LBRL0.50 Hexachlorobutadiene ug/LBRL2.0 Isopropyl Ether ug/LBRL0.50 Isopropylbenzene (Cumene)ug/LBRL0.50 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 24 of 30 12/27/19 Level II QC Report 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Work Order: 9120181 Time Submitted: 12/11/2019 10:15:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0380 - SM6200 B Blank (P9L0380-BLK1)Prepared & Analyzed: 12/19/19 m,p-Xylenes ug/LBRL1.0 Methyl Butyl Ketone (2-Hexanone)ug/LBRL1.0 Methyl Ethyl Ketone (2-Butanone)ug/LBRL5.0 Methyl Isobutyl Ketone ug/LBRL1.0 Methylene Chloride ug/LBRL2.0 Methyl-tert-Butyl Ether ug/LBRL1.0 Naphthalene ug/L0.320 1.0 J n-Butylbenzene ug/LBRL0.50 n-Propylbenzene ug/LBRL0.50 o-Xylene ug/LBRL0.50 sec-Butylbenzene ug/LBRL0.50 Styrene ug/LBRL0.50 tert-Butylbenzene ug/LBRL0.50 Tetrachloroethylene ug/LBRL0.50 Toluene ug/LBRL0.50 trans-1,2-Dichloroethylene ug/LBRL0.50 trans-1,3-Dichloropropylene ug/LBRL0.50 Trichloroethylene ug/LBRL0.50 Trichlorofluoromethane ug/LBRL0.50 Vinyl acetate ug/LBRL5.0 Vinyl chloride ug/LBRL0.50 Xylenes, total ug/LBRL1.5 ug/L 50.00 70-130Surrogate: 4-Bromofluorobenzene 10250.8 ug/L 50.00 70-130Surrogate: Dibromofluoromethane 10049.9 ug/L 50.00 70-130Surrogate: Toluene-d8 10050.2 LCS (P9L0380-BS1)Prepared & Analyzed: 12/19/19 1,1,1,2-Tetrachloroethane ug/L21.0 0.50 20.00 70-130105 1,1,1-Trichloroethane ug/L20.5 0.50 20.00 70-130102 1,1,2,2-Tetrachloroethane ug/L21.4 0.50 20.00 70-130107 1,1,2-Trichloroethane ug/L21.1 0.50 20.00 70-130105 1,1-Dichloroethane ug/L20.8 0.50 20.00 70-130104 1,1-Dichloroethylene ug/L19.8 0.50 20.00 70-13099 1,1-Dichloropropylene ug/L20.6 0.50 20.00 70-130103 1,2,3-Trichlorobenzene ug/L22.4 0.50 20.00 70-130112 1,2,3-Trichloropropane ug/L21.7 0.50 20.00 70-130108 1,2,4-Trichlorobenzene ug/L21.8 0.50 20.00 70-130109 1,2,4-Trimethylbenzene ug/L20.4 0.50 20.00 70-130102 1,2-Dibromo-3-chloropropane ug/L20.2 2.0 20.00 70-130101 1,2-Dibromoethane ug/L21.8 0.50 20.00 70-130109 1,2-Dichlorobenzene ug/L20.4 0.50 20.00 70-130102 1,2-Dichloroethane ug/L19.9 0.50 20.00 70-130100 1,2-Dichloropropane ug/L21.1 0.50 20.00 70-130105 1,3,5-Trimethylbenzene ug/L20.6 0.50 20.00 70-130103 1,3-Dichlorobenzene ug/L20.1 0.50 20.00 70-130100 1,3-Dichloropropane ug/L21.8 0.50 20.00 70-130109 1,4-Dichlorobenzene ug/L19.9 0.50 20.00 70-13099 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 25 of 30 12/27/19 Level II QC Report 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Work Order: 9120181 Time Submitted: 12/11/2019 10:15:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0380 - SM6200 B LCS (P9L0380-BS1)Prepared & Analyzed: 12/19/19 2,2-Dichloropropane ug/L21.2 2.0 20.00 70-130106 2-Chlorotoluene ug/L20.2 0.50 20.00 70-130101 4-Chlorotoluene ug/L20.0 0.50 20.00 70-130100 4-Isopropyltoluene ug/L21.0 0.50 20.00 70-130105 Acetone ug/L43.7 10 40.00 40-160109 Benzene ug/L20.4 0.50 20.00 70-130102 Bromobenzene ug/L20.5 0.50 20.00 70-130102 Bromochloromethane ug/L20.6 0.50 20.00 70-130103 Bromodichloromethane ug/L21.4 0.50 20.00 70-130107 Bromoform ug/L19.4 0.50 20.00 70-13097 Bromomethane ug/L19.5 1.0 20.00 60-14098 Carbon Tetrachloride ug/L20.6 0.50 20.00 70-130103 Chlorobenzene ug/L20.1 0.50 20.00 70-130101 Chloroethane ug/L21.3 0.50 20.00 60-140106 Chloroform ug/L21.1 0.50 20.00 70-130106 Chloromethane ug/L20.6 0.50 20.00 60-140103 cis-1,2-Dichloroethylene ug/L20.1 0.50 20.00 70-130100 cis-1,3-Dichloropropylene ug/L22.7 0.50 20.00 70-130113 Dibromochloromethane ug/L21.9 0.50 20.00 70-130109 Dibromomethane ug/L21.1 0.50 20.00 70-130106 Dichlorodifluoromethane ug/L21.7 1.0 20.00 60-140108 Ethanol ug/L610 200 500.0 60-140122 Ethylbenzene ug/L20.4 0.50 20.00 70-130102 Hexachlorobutadiene ug/L21.8 2.0 20.00 70-130109 Isopropyl Ether ug/L19.9 0.50 20.00 70-13099 Isopropylbenzene (Cumene)ug/L21.0 0.50 20.00 70-130105 m,p-Xylenes ug/L42.0 1.0 40.00 70-130105 Methyl Butyl Ketone (2-Hexanone)ug/L23.8 1.0 20.00 60-140119 Methyl Ethyl Ketone (2-Butanone)ug/L22.0 5.0 20.00 60-140110 Methyl Isobutyl Ketone ug/L22.4 1.0 20.00 60-140112 Methylene Chloride ug/L19.7 2.0 20.00 70-13099 Methyl-tert-Butyl Ether ug/L21.7 1.0 20.00 70-130109 Naphthalene ug/L21.7 1.0 20.00 70-130108 n-Butylbenzene ug/L21.2 0.50 20.00 70-130106 n-Propylbenzene ug/L20.2 0.50 20.00 70-130101 o-Xylene ug/L20.8 0.50 20.00 70-130104 sec-Butylbenzene ug/L20.8 0.50 20.00 70-130104 Styrene ug/L22.0 0.50 20.00 70-130110 tert-Butylbenzene ug/L20.7 0.50 20.00 70-130103 Tetrachloroethylene ug/L20.7 0.50 20.00 70-130103 Toluene ug/L20.5 0.50 20.00 70-130103 trans-1,2-Dichloroethylene ug/L20.0 0.50 20.00 70-130100 trans-1,3-Dichloropropylene ug/L22.7 0.50 20.00 70-130114 Trichloroethylene ug/L19.6 0.50 20.00 70-13098 Trichlorofluoromethane ug/L23.2 0.50 20.00 60-140116 Vinyl acetate ug/L21.8 5.0 20.00 60-140109 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 26 of 30 12/27/19 Level II QC Report 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Work Order: 9120181 Time Submitted: 12/11/2019 10:15:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0380 - SM6200 B LCS (P9L0380-BS1)Prepared & Analyzed: 12/19/19 Vinyl chloride ug/L22.7 0.50 20.00 60-140114 Xylenes, total ug/L62.8 1.5 60.00 70-130105 ug/L 50.00 70-130Surrogate: 4-Bromofluorobenzene 9849.2 ug/L 50.00 70-130Surrogate: Dibromofluoromethane 10049.9 ug/L 50.00 70-130Surrogate: Toluene-d8 10150.4 LCS Dup (P9L0380-BSD1)Prepared & Analyzed: 12/19/19 1,1,1,2-Tetrachloroethane ug/L20.6 0.50 20.00 2070-130103 2 1,1,1-Trichloroethane ug/L20.5 0.50 20.00 2070-130102 0.1 1,1,2,2-Tetrachloroethane ug/L20.1 0.50 20.00 2070-130101 6 1,1,2-Trichloroethane ug/L20.5 0.50 20.00 2070-130102 3 1,1-Dichloroethane ug/L20.3 0.50 20.00 2070-130102 2 1,1-Dichloroethylene ug/L19.5 0.50 20.00 2070-13097 2 1,1-Dichloropropylene ug/L20.1 0.50 20.00 2070-130101 2 1,2,3-Trichlorobenzene ug/L21.2 0.50 20.00 2070-130106 6 1,2,3-Trichloropropane ug/L20.5 0.50 20.00 2070-130102 6 1,2,4-Trichlorobenzene ug/L20.8 0.50 20.00 2070-130104 5 1,2,4-Trimethylbenzene ug/L20.2 0.50 20.00 2070-130101 1 1,2-Dibromo-3-chloropropane ug/L18.2 2.0 20.00 2070-13091 10 1,2-Dibromoethane ug/L20.6 0.50 20.00 2070-130103 6 1,2-Dichlorobenzene ug/L19.9 0.50 20.00 2070-13099 3 1,2-Dichloroethane ug/L19.3 0.50 20.00 2070-13097 3 1,2-Dichloropropane ug/L20.4 0.50 20.00 2070-130102 3 1,3,5-Trimethylbenzene ug/L20.2 0.50 20.00 2070-130101 2 1,3-Dichlorobenzene ug/L19.5 0.50 20.00 2070-13097 3 1,3-Dichloropropane ug/L20.9 0.50 20.00 2070-130105 4 1,4-Dichlorobenzene ug/L19.5 0.50 20.00 2070-13098 2 2,2-Dichloropropane ug/L20.5 2.0 20.00 2070-130102 4 2-Chlorotoluene ug/L19.8 0.50 20.00 2070-13099 2 4-Chlorotoluene ug/L19.8 0.50 20.00 2070-13099 1 4-Isopropyltoluene ug/L20.3 0.50 20.00 2070-130102 3 Acetone ug/L38.8 10 40.00 2040-16097 12 Benzene ug/L19.9 0.50 20.00 2070-13099 3 Bromobenzene ug/L20.3 0.50 20.00 2070-130102 0.9 Bromochloromethane ug/L20.4 0.50 20.00 2070-130102 1 Bromodichloromethane ug/L21.0 0.50 20.00 2070-130105 2 Bromoform ug/L18.9 0.50 20.00 2070-13094 3 Bromomethane ug/L20.6 1.0 20.00 2060-140103 5 Carbon Tetrachloride ug/L20.1 0.50 20.00 2070-130101 2 Chlorobenzene ug/L19.6 0.50 20.00 2070-13098 2 Chloroethane ug/L21.9 0.50 20.00 2060-140110 3 Chloroform ug/L20.8 0.50 20.00 2070-130104 1 Chloromethane ug/L19.9 0.50 20.00 2060-140100 3 cis-1,2-Dichloroethylene ug/L19.5 0.50 20.00 2070-13098 3 cis-1,3-Dichloropropylene ug/L22.0 0.50 20.00 2070-130110 3 Dibromochloromethane ug/L21.2 0.50 20.00 2070-130106 3 Dibromomethane ug/L20.2 0.50 20.00 2070-130101 5 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 27 of 30 12/27/19 Level II QC Report 4300 Sapphire Court, Suite 100 Project: 111601 AinsleysGroundwater Manage. Assoc.(GREE) Greenville, NC 27834 Attn: Katie Hackney Work Order: 9120181 Time Submitted: 12/11/2019 10:15:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0380 - SM6200 B LCS Dup (P9L0380-BSD1)Prepared & Analyzed: 12/19/19 Dichlorodifluoromethane ug/L21.1 1.0 20.00 2060-140106 3 Ethanol ug/L522 200 500.0 2060-140104 16 Ethylbenzene ug/L19.7 0.50 20.00 2070-13099 3 Hexachlorobutadiene ug/L20.6 2.0 20.00 2070-130103 6 Isopropyl Ether ug/L19.6 0.50 20.00 2070-13098 1 Isopropylbenzene (Cumene)ug/L20.3 0.50 20.00 2070-130102 3 m,p-Xylenes ug/L40.8 1.0 40.00 2070-130102 3 Methyl Butyl Ketone (2-Hexanone)ug/L21.0 1.0 20.00 2060-140105 13 Methyl Ethyl Ketone (2-Butanone)ug/L19.7 5.0 20.00 2060-14098 11 Methyl Isobutyl Ketone ug/L20.1 1.0 20.00 2060-140101 11 Methylene Chloride ug/L19.5 2.0 20.00 2070-13098 1 Methyl-tert-Butyl Ether ug/L21.3 1.0 20.00 2070-130107 2 Naphthalene ug/L19.8 1.0 20.00 2070-13099 9 n-Butylbenzene ug/L20.5 0.50 20.00 2070-130103 3 n-Propylbenzene ug/L19.8 0.50 20.00 2070-13099 2 o-Xylene ug/L20.2 0.50 20.00 2070-130101 3 sec-Butylbenzene ug/L20.3 0.50 20.00 2070-130101 3 Styrene ug/L21.4 0.50 20.00 2070-130107 3 tert-Butylbenzene ug/L20.3 0.50 20.00 2070-130102 2 Tetrachloroethylene ug/L20.0 0.50 20.00 2070-130100 4 Toluene ug/L20.1 0.50 20.00 2070-130100 2 trans-1,2-Dichloroethylene ug/L19.6 0.50 20.00 2070-13098 2 trans-1,3-Dichloropropylene ug/L22.2 0.50 20.00 2070-130111 2 Trichloroethylene ug/L18.7 0.50 20.00 2070-13094 4 Trichlorofluoromethane ug/L22.8 0.50 20.00 2060-140114 2 Vinyl acetate ug/L20.7 5.0 20.00 2060-140103 5 Vinyl chloride ug/L22.6 0.50 20.00 2060-140113 0.8 Xylenes, total ug/L61.0 1.5 60.00 2070-130102 3 ug/L 50.00 70-130Surrogate: 4-Bromofluorobenzene 9949.6 ug/L 50.00 70-130Surrogate: Dibromofluoromethane 10049.8 ug/L 50.00 70-130Surrogate: Toluene-d8 10050.0 This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 28 of 30 Sample Extraction Data Prep Method: SM6200 B Lab Number Batch Date/TimeInitialFinal P9L03809120181-01 12/19/19 10:4010 10mL mL P9L03809120181-01 12/19/19 10:4010 10mL mL P9L03809120181-02 12/19/19 10:4010 10mL mL P9L03809120181-02 12/19/19 10:4010 10mL mL P9L03809120181-03 12/19/19 10:4010 10mL mL P9L03809120181-03 12/19/19 10:4010 10mL mL P9L03809120181-04 12/19/19 10:4010 10mL mL P9L03809120181-05 12/19/19 10:4010 10mL mL P9L03809120181-05 12/19/19 10:4010 10mL mL P9L03809120181-06 12/19/19 10:4010 10mL mL P9L03809120181-07 12/19/19 10:4010 10mL mL P9L03809120181-08 12/19/19 10:4010 10mL mL P9L03809120181-09 12/19/19 10:4010 10mL mL This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 29 of 30 Page 30 of 30