The URL can be used to link to this page

Home My WebLink AboutWA-855_11512_CA_RPTS_20150806_RMRGMA August 5, 2015 Mr. Scott Bullock, L.G. NCDENR, DWM, UST Section Washington Regional Office 943 Washington Square Mall Washington, North Carolina 27889 Re: Remediation Monitoring Report Groundwater Management Associates, Inc. 4300 Sapphire Court, Suite 100 Greenville, North Carolina 27834 Telephone: (252) 758-3310 www.qma-nc.com Ainsley's Service Center, 203 US Highway 64, Creswell, Washington County, North Carolina UST Incident Number: 11512 Risk Classification: High (H190D) Dear Mr. Bullock: Enclosed is one copy of a Remediation Monitoring Report prepared by Groundwater Management Associates, Inc., on behalf of Mr. Bryan Ainsley for the above referenced site. If you have any questions or comments about the enclosed report, please do not hesitate to contact me at (252) 758- 3310. Thank you. . Sincerely, Groundwater Management Associates, Inc. Kyle B. Quick, P.G. Project Hydrogeologist Enclosure: Remediation Monitoring Report cc: Mr. Bryan Ainsley, owner Z:/GMA/111601-Ainsley's Service Center/Mon Rpts/Mon Rpt 201S-8/RMRpt Let. 201S-8-S.docx The Groundwater Experts REMEDIA TION MONn-ORING REPORT AINSLEY'S SERVICE CENTER 203 US HIGHWAY 64 CRESWELL, WASHINGTON COUNTY UST INCIDENT #: 11512 RISK CLASSIFICATION: HIGH (190D) Latitude: N 35° 52' 20.64" Longitude: W 76° 23' 33.72" PREPARED FOR Mr. Bryan Ainsley 2557 Newlands Road Columbia, North Carolina 27925 Telephone: (252) 796-1465 PREPARED By Groundwater Management Associates, Inc. 4300 Sapphire Court, Suite 100 Greenville, North Carolina 27834 Telephone: (252) 758-3310 Facsimile: (252) 758-8835 North Carolina Corporate Engineering License (GMA -Apex, NC) #: C-0854 North Carolina Corporate Geology License (GMA -Greenville & Apex, NC) #: C-121 August 5, 2015 TABLE OF CONTENTS Page 1.0 SITE INFORMATION .............................................................................................. 1 1.1 Site Identification ........................................................................................... 1 1.2 Contact Information ........................................................................................ 1 1.3 Release Information ........................................................................................ 2 1.4 Report Certification ......................................................................................... 2 2.0 INTRODUCTION AND SITE HISTORY .................................................................... 3 3.0 POTENTIAL RECEPTORS ........................................................................................ 3 4.0 SURFACE WATER SAMPLING AND TESTING ......................................................... 4 5.0 FREE PRODUCT RECOVERY ................................................................................... 5 6.0 GROUNDWATER INVESTIGATION ........................................................................ 5 6.1 Water Level Measurements and Hydraulic Gradients .......................................... 5 6.2 Groundwater Sample Collection and Analytical Methods ..................................... 5 6.3 Groundwater Contaminant Analytical Data ........................................................ 6 7.0 STATUS OF THE ACTIVE REMEDIATION SYSTEM ................................................. 7 8.0 SUMMARY .............................................................................................................. 7 9.0 RECOMMENDATIONS ............................................................................................ 8 10.0 REFERENCES CITED ............................................................................................... 9 LIST OF FIGURES 1. Topographic Map (USGS 7.5 Minute Series, Creswell Quadrangle, Washington County, North Carolina) 2. Properties and Water-Supply Wells Within 1500 Feet of the Site 3. Location of Monitoring Wells and Surface Water Samples 4. Free Product Thickness in Monitoring Well MW3 through Time 5. Equipotential Map, 6/16/2015 6. Benzene Plume Map, 6/16-17/2015 7. MTBE Plume Map, 6/16-17/2015 8. Contaminant Concentrations in Monitoring Well MW1 through Time 9. Contaminant Concentrations in Monitoring Well MW2 through Time 10. Contaminant Concentrations in Monitoring Well MW6 through Time 11. Contaminant Concentrations in Monitoring Well MW11 through Time 12. Contaminant Concentrations in Monitoring Well MW14 through Time 13. Contaminant Concentrations in Monitoring Well MW16 through Time 14. Contaminant Concentrations in Monitoring Well MW23 through Time 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. Free Product Thickness Measurements 4. Volume of Free Product Recovered by Absorbent Socks 5. Well Construction and Water Level Measurements 6. Summary of Monitoring Well Sampling Analytical Results LIST OF APPENDICES I. NCDENR Letter Dated January 8, 2015 II. Technical Methods and Standard Procedures III. Copy of Laboratory Report and Chain-of-Custody Records REMEDIATION MONITORING REPORT 1.0 SITE INFORMATION 1.1 SITE IDENTIFICATION Date of Report: August 5, 2015 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° 52’ 20.64” Longitude: W 76° 23’ 33.72” 1.2 CONTACT INFORMATION UST Owner: Mr. Bryan Ainsley Address: 2557 Newlands Road, Columbia, North Carolina 27925 Phone: (252) 796-1465 UST 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 27983 Phone: (252) 758-3310 Analytical Laboratory: 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 Remediation Monitoring Report Ainsley's Service Center (UST Incident #: 11512) August 5, 2015 Page 2 of 10 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). 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,OOO-galion 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). 1.4 REPORT CERTIFICATION I, Kyle B. Quick, 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 & Apex, NC #C-121) and engineering (Apex, NC #C-0854) in the state of North Carolina. Project Hydrogeologist Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 3 of 10 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 (NCDENR) in September of 1996. A remediation system pilot test was performed in March of 2002 (Landmark, 2002), and approved by NCDENR 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 NCDENR 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 10 groundwater monitoring events since reactivation of the incident. As requested in the Acknowledgement of Remediation Monitoring Report Letter dated January 8, 2015, GMA has completed the following tasks; (1) maintain absorbent socks in well MW3 to recover free product , (2) perform a groundwater monitoring event, and (3) collect surface-water samples from the ditch along the southern property boundary of the site (Appendix I). The remainder of this report summarizes the completion of these tasks. 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 nonpotable 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 Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 4 of 10 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 another channelized tributary of the Scuppernong River (Figures 1 and 2). 4.0 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 June 16-17, 2015, GMA collected surface water samples from the intermittent drainage ditch located along the southern property boundary of the site to investigate if the petroleum- contaminated groundwater is discharging into the ditch. A total of three surface water samples were collected in areas upgradient (SW1), within (SW2), and downgradient (SW3) of the area where the petroleum-contaminated groundwater is anticipated to discharge to the ditch (Figure 3). The samples were submitted to Prism for analysis of volatile organic compounds (VOCs) by EPA Method 6200B. Technical methods and standard procedures utilized for sample collection are described in Appendix II. Methyl tert-butyl ether (MTBE) was detected in surface water samples SW2 and SW3, but their concentrations did not exceed either 15A NCAC 2B surface water standard (690 µg/L) or the 15A NCAC 2L groundwater standard (20 µg/L). Toluene, ethylbenzene, 1,3,5-trimethylbenzene, and 4-isopropyltoluene were detected in upgradient surface water sample MW1, and the concentration of toluene exceeds the 15A NCAC 2B surface water standard (11 µg/L; Table 2). A copy of the laboratory report and chain-of-custody forms is included in Appendix III. Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 5 of 10 5.0 FREE PRODUCT RECOVERY On January 24, 1995, liquid-phase gasoline (free product) was first discovered at the site in monitoring well MW3 (Figure 4). 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 (Table 3). Six AFVR events have been conducted on monitoring well MW3 since 2001, and approximately 9.78 gallons of liquid and vapor-equivalent gasoline and 15,693 gallons of contaminated groundwater were recovered during the six AFVR events (GMA, 2011). Beginning on February 24, 2012, GMA deployed absorbent socks in monitoring well MW3 to recover free product, and a total of 4.02 gallons (~22.6 pounds) of free product have been recovered through July 16, 2015 (Table 4). A combined total of approximately 13.8 gallons of gasoline (including vapor equivalent) have been recovered by absorbent sock deployment and maintenance and the six AFVR events. 6.0 GROUNDWATER INVESTIGATION 6.1 WATER-LEVEL MEASUREMENTS AND HYDRAULIC GRADIENTS On July 16, 2015, GMA collected water-level measurements (Table 5) from 37 wells (MW1 through MW34, RW1, RW3, and RW4). The depth to groundwater near the former UST basin was approximately five feet below land surface (BLS). The equipotential map (Figure 5) indicates that the horizontal component of groundwater flow was directed toward the west along a horizontal hydraulic gradient ranging from approximately 1.6 x 10-5 feet per foot (feet/foot) to 6.8 x 10-3 feet/foot. Monitoring-well pairs MW2/MW4 and MW11/MW18 are screened within the surficial aquifer and underlying Yorktown confining layer, respectively. Upward-directed vertical hydraulic gradients of 1.3 x 10-3 feet/foot and 2.1 x 10-3 feet/foot were present in well pairs MW2/MW4 and MW11/MW18, respectively. 6.2 GROUNDWATER SAMPLE COLLECTION AND ANALYTICAL METHODS On June 16-17, 2015, groundwater samples were collected from 36 wells (MW1 through MW34, RW3, and RW4) and submitted to Prism 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). Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 6 of 10 6.3 GROUNDWATER CONTAMINANT ANALYTICAL DATA New and historical groundwater analytical results are summarized in Table 6. A copy of the laboratory report and chain-of-custody forms for the groundwater samples collected on June 16-17, 2015, are provided in Appendix III. Twenty-two of the 36 monitoring-well samples contained a detectable concentration of at least one petroleum-related contaminant. Twelve of these 22 samples contained at least one petroleum-related contaminant at a concentration greater than the 15A NCAC 2L groundwater standard, including benzene, toluene, ethylbenzene, total xylenes, MTBE, 1,2-dichloroethane (1,2-DCA), naphthalene, 1,2,4-trimethylbenzene, isopropylbenzene, and n-propylbenzene. The benzene concentration in the sample from well MW2 (5900 µg/L) exceeded the gross contaminant level (GCL) of 5000 µg/L (Table 6). The concentrations of benzene, toluene, ethylbenzene and total xylenes in the samples from one or more groundwater monitoring wells exceeded the 15A NCAC 2B surface water standards by a factor of 10 (Table 6). Benzene and MTBE are the most common compounds to exceed the 15A NCAC 2L groundwater standards, and the estimated horizontal extents of these compounds are shown in Figures 6 and 7, respectively. The benzene plume (Figure 6) decreased in size slightly during this monitoring period (October 1, 2014 through June 17, 2015) due to the contaminant concentration decreases in well MW22. The benzene plume is currently delineated to an approximate area of 40,850 square feet. MTBE is the most widespread contaminant at the site and the extent of MTBE exceeding the 15A NCAC 2L groundwater standard is not delineated to the west of monitoring well MW30 (Figure 7). Contaminant concentrations exceeding the 15A NCAC 2L groundwater standards appear to be restricted to the surficial aquifer. The groundwater samples collected on June 16-17, 2015, from the two “deep” Type III wells (MW4 and MW18) screened within the Yorktown confining layer did not contain any petroleum-related compounds at concentrations above the analytical method’s detection limits (Table 6). The concentrations of benzene, toluene, ethylbenzene, total xylenes, and MTBE were graphed through time for monitoring wells MW1, MW2, MW6, MW11, MW14, MW16, and MW23 (Figures 8 through 14, respectively). One or more of the contaminant concentrations in source-area wells MW1 and MW2, and downgradient wells MW14 and MW23 increased during this monitoring period (October 1, 2014, through June 17, 2015). However, the contaminant concentrations in downgradient wells MW6, MW11, and MW16 either decreased or stayed the same during this monitoring period. Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 7 of 10 Chlorinated compounds were first detected in well MW5 in September of 2009 (Table 6). Prior to GMA’s involvement, groundwater samples collected from the monitoring-well network were not analyzed for chlorinated compounds. The chlorinated compounds detected in well MW5 include tetrachloroethylene (PCE), trichloroethylene (TCE), cis-1,2-dichloroethene (cis-1,2-DCE), trans-1,2-dichloroethene (trans-1,2-DCE), and vinyl chloride (VC). Each of these compounds have been detected in well MW5 at least once at concentrations greater that the 15A NCAC 2L groundwater standards, with the exception of trans-1,2-DCE. Concentrations of PCE and TCE exceeding the 15A NCAC 2L groundwater standards have also been detected in monitoring well MW17, which is located immediately downgradient of well MW5. 7.0 STATUS OF THE ACTIVE REMEDIATION SYSTEM A groundwater pump-and-treat (P&T) and soil-vapor extraction (SVE) remediation system was installed and activated at the site in June of 2003. The P&T system recovered petroleum- contaminated groundwater from wells RW1 and RW2, and the SVE system recovered subsurface petroleum vapors from wells RW3, RW4, and RW5. A total of 616,926 gallons of petroleum-contaminated groundwater were 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. 8.0 SUMMARY This Remediation Monitoring Report describes activities performed at the Ainsley’s Service Center site (UST Incident # 11512) during the period of November 18, 2014, through July 16, 2015, as summarized below.  A total of 4.02 gallons (~22.6 pounds) of free product have been recovered by absorbent socks deployed in MW3 from February 24, 2012, through July 16, 2015.  On June 16-17, 2015, GMA collected three surface water samples from the intermittent drainage ditch located along the southern property boundary of the site, from locations upgradient, within, and downgradient of where the dissolved petroleum-related groundwater contamination is anticipated to discharge to the ditch.  MTBE was detected in two of the surface water samples, but their concentrations did not exceed the 15A NCAC 2B surface water standard or the 15A NCAC 2L groundwater standard.  Toluene, ethylbenzene, 1,3,5-trimethylbenzene, and 4-isopropyltoluene were detected in the upgradient surface water sample, and the toluene concentration exceeded the 15A NCAC 2B surface water standard. Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 8 of 10  On June 16-17, 2015, GMA collected water-level measurements and groundwater samples from 36 monitoring wells, MW1 through MW34, RW3, and RW4.  The horizontal component of groundwater flow in the surficial aquifer was directed toward the west along a horizontal hydraulic gradient ranging from approximately 1.6 x 10-5 to 6.8 x 10-3 feet/foot.  Upward-directed vertical hydraulic gradients of 1.3 x 10-3 and 2.1 x 10-3 feet/foot were present in surficial aquifer and Yorktown confining layer well pairs MW2/MW4 and MW11/MW18, respectively.  Twenty-two of the 36 monitoring-well samples contained a detectable concentration of at least one petroleum-related contaminant, and 12 of these samples contained at least one petroleum contaminant at a concentration greater than the 15A NCAC 2L groundwater standards.  The benzene concentration in the sample from well MW2 exceeded the GCL of 5000 µg/L.  The concentrations of benzene, toluene, ethylbenzene, and total xylenes in the samples from one or more monitoring wells exceeded the 15A NCAC 2B surface water standards by a factor of 10.  The benzene plume decreased in size during this monitoring period, and currently underlies an estimated area of 40,850 square feet.  MTBE is the most widespread contaminant at the site and the extent of MTBE exceeding the 15A NCAC 2L groundwater standard is not delineated to the west of monitoring well MW30.  One or more of the contaminant concentrations in source-area wells MW1 and MW2, and downgradient wells MW14 and MW23 increased during this monitoring period (October 1, 2014, through June 17, 2015), but concentrations in wells MW6, MW11, and MW16 either decreased or stayed the same. 9.0 RECOMMENDATIONS The extent of soil contamination and the dissolved petroleum hydrocarbon plume have been delineated, with the exception of MTBE west of monitoring well MW30. GMA recommends continued semi-annual groundwater monitoring to track changes in the MTBE concentrations in the far-downgradient monitoring wells to determine if expansion of the monitoring-well network is needed. NCDENR requested the preparation of a New Technology Cleanup Plan (NTCP) to provide a cost comparison of dewatering alternatives for the excavation of contaminated soil at the site. More specifically, a comparison of onsite treatment and disposal via a National Pollutant Discharge Elimination System (NPDES) permit versus hauling and offsite treatment/disposal for water generated from dewatering the excavation will be addresses in the NTCP. A preapproval task Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 9 of 10 authorization to prepare the NTCP (Task Authorization #11512-33) has been approved, and we are currently working on the NTCP. GMA recommends continued monthly deployment of absorbent socks in monitoring well MW3 and semi-annual groundwater monitoring until the NTCP is implemented. The next semi-annual groundwater monitoring event should be conducted in December of 2015. The groundwater samples will be submitted to a North Carolina certified laboratory for analysis of VOCs by EPA Method 6200B. GMA recommends continued monitoring of the surface water in the ditch along the southern property line of the site due to the presence of petroleum-related contaminants in surface water samples collected on June 16-17, 2015. 10.0 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. 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. Landmark Engineering and Environmental, P.C., 2002, Pilot Testing Report, Ainsley’s Service Center, Creswell, Washington County, North Carolina, 4 pages. Remediation Monitoring Report Ainsley’s Service Center (UST Incident #: 11512) August 5, 2015 Page 10 of 10 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 ---- --,-:: --::---~-------,- NOTE: I I r TI-US SITE AND TI-lE SURROUNDING PROPERllES ARE LOCATED WllHlN TI-lE TOWN OF CRESWELL WELLHEAD PROTECllON AREA. LEGEND CHURCH PROPERTY LINE DOT RIGHT-OF-WAY WATER FEATURE 7.30 ACllVE MUNICIPAL WELL ACllVE NON-POTABLE WSW STATUS UNKNOWN WSW INACTIVE WSW 3594 PARCEL NUMBER (LAST 4-DIGITS) WSW-WATER-SUPPLY WELL ~ N SCALE IN FEET o 250' 500' I ! I 1~:::500' File: 601 PROPERllES AND WATER-SUPPLY WELLS WllHlN 1500 FT. OF SITE Date: 6/5/2013 2 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 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 8/3/2015 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 Figure 40.000.501.001.502.002.50Free Product Thickness (feet)TimeFree Product Thickness in Monitoring Well MW3 through TimeAinsley's Service Center Creswell, Washington County UST Incident # 11512AFVRevent on 9/19/2001AFVR event on 10/1/2002AFVR event on 10/9/2003AFVR event on 6/24/2008AFVR event on 2/11/2009AFVR event on 1/27/2011Absorbent socks first installed on 2/24/2012 and replaced monthly 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 MW14 MW28 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 94.73 94.59 94.75 (94.62) 94.66 94.43 94.32 94.48 94.73 94.91 94.24 94.35 94.35 94.38 94.11 94.26 94.55 (94.31) 94.32 94.30 94.30 94.11 94.07 94.2294.14 93.99 94.01 94.18 93.96 93.82 93.97 94.15 94.13 94.37 (95.12)(95.04) 94.0 94.0 94.2 94.2 94.4 94.4 94.6 94.6 94.8 94.8 ? ?? ? ? ?N SEVENTH STUS HWY 64 WEST - SR 1219 CHESSON ST 0 50' EQUIPOTENTIAL MAP,6/16/2015 $ - LEGEND - PROJECT: 111601 AINSLEY SERVICE CENTERCRESWELL, WASHINGTON CO., NC FIGURE 5 DATE 8/4/2015 SCALE IN FEET @A MONITORING WELL, TYPE II @A(MONITORING WELL, TYPE III !A P&T/SVE RECOVERY WELL AD INACTIVE WSW EQUIPOTENTIAL LINES INTERMITTENT DITCH ROAD CENTERLINES PARCELS 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 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 MW5MW17 MW4 MW3 RW5 RW1 MW1 RW3 MW33MW34 SW1 SW2 SW3 460 5900 4900 (<0.5) <0.5 <0.5 6.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 1000 <0.5 <0.5 <0.5 (<0.5) <0.5 <0.5 <0.5 <0.5 460 <0.5<0.5 <0.5 <0.5 43 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 540 640 <0.5 <0.5 <0.5 N SEVENTH STUS HWY 64 WEST - SR 1219 CHESSON ST 0 55' BENZENE PLUME MAP,6/16-17/2015 $ - LEGEND - PROJECT: 111601 AINSLEY SERVICE CENTERCRESWELL, WASHINGTON CO., NC FIGURE 6 DATE 8/4/2015 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 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. 1.0 1.0 5000 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 MW5MW17 MW4 MW3 RW5 RW1 MW1 RW3 MW33MW34 SW1 SW2 SW3 <20 360 2200 (<1.0) 2.1 2.6 0.92 2.1 <1.0 <1.0 <1.0 <1.0 <1.0 1100 4.2 1.6 0.74 (<1.0) <1.0 <1.0 <1.0 210 520 1.26.0 (10) 210 96 5.7 76 <1.0 <1.0 <1.0 <1.0 (<10) 830 <1.0 1.6 8.6 N SEVENTH STUS HWY 64 WEST - SR 1219 CHESSON ST 0 55' MTBE PLUME MAP,6/16-17/2015 $ - LEGEND - PROJECT: 111601 AINSLEY SERVICE CENTERCRESWELL, WASHINGTON CO., NC FIGURE 7 DATE 8/4/2015 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 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. 20 2 020? ? Figure 801,0002,0003,0004,0005,0006,0007,0008,0009,00010,000Contaminant Concentrations (ug/L)TimeContaminant Concentrations in Monitoring Well MW1 through Timebenzenetolueneethylbenzenetotal xylenesMTBE1.30 feet of free product present on 5/17/2004, and 2.47 feet of free product present on 12/21/2004. Contaminant Concentrations Not ShownDate Benzene Toluene Total Xylenes1/24/1995 21,000 30,000 15,0009/5/2002 12,0004/1/2003 10,000 11,0006/23/2003 14,000 15,0009/11/2003 11,000 Figure 901,0002,0003,0004,0005,0006,0007,0008,0009,00010,000Contaminant Concentrations (ug/L)TimeContaminant Concentrations in Monitoring Well MW2 through Timebenzenetolueneethylbenzenetotal xylenesMTBEContaminant Concentrations Not ShownDate Benzene Toluene MTBE1/24/1995 17,000 20,0007/17/1995 14,000 16,000 Figure 1005001,0001,5002,0002,5003,0003,5004,0004,5005,000Contaminant Concentrations (ug/L)TimeContaminant Concentrations in Monitoring Well MW6 through Timebenzenetolueneethylbenzenetotal xylenesMTBEContaminant Concentrations Not ShownDate Benzene7/17/1995 7300 Figure 1102004006008001,000Contaminant Concentrations (ug/L)TimeContaminant Concentrations in Monitoring Well MW11 through Timebenzenetolueneethylbenzenetotal xylenesMTBEContaminant Concentrations Not ShownDate Benzene Total Xylenes12/26/2001 2500 1800 Figure 1202004006008001,0001,2001,4001,6001,8002,000Contaminant Concentrations (ug/L)TimeContaminant Concentrations in Monitoring Well MW14 through Timebenzenetolueneethylbenzenetotal xylenesMTBE---- -- ------ -- -- ------ -- ------ -- -- -------- -- ------- --------- -- ------ -- ------- -- ------ -- -- ------ -- -------------- -- ------- -- -- Figure 1302004006008001000Contaminant Concentrations (ug/L)TimeContaminant Concentrations in Monitoring Well MW16 through Timebenzenetolueneethylbenzenetotal xylenesMTBE\ \ , \ \ , \ \ \ .&. -"" .II' ~ ........ .J "-, ~ ~ ~ T I~ .... i4... " V V ......... ..... , , '" v '" ~ Figure 1402004006008001,000Contaminant Concentrations (ug/L)TimeContaminant Concentrations in Monitoring Well MW23 through Timebenzenetolueneethylbenzenetotal xylenesMTBE): I. 1/ -t , I( A , ,. ........... ~ VI Y "" --I( " ./ , oM IE 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 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 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 WSW Property Owner Property Address Cleo Hill 3594 Parcel Number 2534 7525 Charles & Tina Broome 2312 Bryan & Susan Ainsley Washington County 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 6526 PO Box 305 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 East Carolina Bank 305 N. 7th St. Creswell, NC 27928 PO Box 98 Creswell, NC 27928 7.30 Clyde Smithson, Jr. * 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 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 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 Table 2. Summary of Surface-Water Sampling Analytical Results Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic2/25/2009< 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 < 50 < 150 < 100 < 15010/1/2014 1< 0.5 < 0.5 < 0.5 < 0.5 < 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 < 0.51.7< 0.50.97< 0.5 < 0.5 NA NA NA NA6/16/2015 2< 0.5380 1.6< 1.5 < 1.0 < 0.5 < 0.5 < 0.5 < 0.51.9< 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.515< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA2/25/2009< 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 < 50 < 150 < 100 < 15010/1/2014< 0.50.98< 0.5 < 0.510< 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 NA6/17/2015 3< 0.5 < 0.5 < 0.5 < 0.51.6< 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 NA10/1/20141.5 0.95< 0.5 < 0.52.5< 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 NA6/17/2015< 0.5 < 0.5 < 0.5 < 0.58.6< 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 NA51 11 97 670 690 0.31 13,000 37 390 630 330 80 320 80 4 NSE NSE 330 NSE NSE 3.3 30 4900 10,000 2.4 1200 NSE NSE NSE1.0 600 600 500 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 0.03 400 700 10,000 200All concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb).1 10/1/2014 - SW1 - Acetone (71 ug/L, 2B Std. = 2000 ug/L) & Carbon Tetrachloride (1.3 ug/L, 2B Std. = 1.6 ug/L)MTBE = Methyl tert-butyl ether2 6/16/2015 - SW1 - Acetone (36 ug/L, 2B Std. = 2000 ug/L)EDB = Ethylene dibromide3 6/17/2015 - SW2 - Acetone (6.4 J ug/L, 2B Std. = 2000 ug/L)IPE = Isopropyl ether1,2-DCA = 1,2-DichloroethaneNA = Not analyzedNSE = No standard establishedSW1SW215A NCAC 2B Standards15A NCAC 2L StandardsSW3 Table 3. Free Product Thickness Measurements Ainsley's Service Center Creswell, Washington County UST Incident #: 11512 Well Number Date of Measurement Free Product Thickness (in feet) Well Number Date of Measurement Free Product Thickness (in feet) 5/17/2004 1.30 12/18/2014 not present 12/21/2004 2.47 1/26/2015 not present RW3 9/5/2002 0.70 2/24/2015 not present 1/24/1995 0.08 3/24/2015 not present 7/17/1995 0.02 4/29/2015 not present 9/19/2001 1.04 5/28/2015 not present 12/26/2001 0.28 6/16/2015 not present 3/24/2002 0.21 7/16/2015 not present 6/5/2002 0.20 9/5/2002 0.50 10/1/2002 0.35 12/19/2002 0.04 4/1/2003 not present 6/23/2003 0.40 9/11/2003 0.55 10/9/2003 0.40 5/17/2004 2.28 12/21/2004 1.34 5/22/2008 0.71 6/24/20081 0.77 6/24/20082 not present 7/19/2008 0.35 2/11/20091 0.43 2/11/20092 not present 2/24/2009 0.15 9/14/2009 0.35 6/7/2010 0.95 1/17/2011 0.66 1/27/20111 0.30 1/27/20112 not present 1/31/2011 0.05 11/7/2011 0.24 2/24/2012 not present 3/16/2012 0.14 4/25/2012 not present 5/16/2012 not present 6/15/2012 not present 7/9/2012 not present 12/13/2012 not present 1/9/2013 not present 2/12/2013 not present 3/13/2013 not present 4/10/2013 not present 4/23/2013 not present 5/28/2013 not present 7/25/2013 not present 8/28/2013 not present 9/23/2013 not present 10/30/2013 not present 11/11/2013 not present 12/10/2013 not present 1/15/2014 not present 2/20/2014 not present 3/12/2014 not present 4/24/2014 not present 5/20/2014 not present 6/11/2014 not present 8/20/2014 not present 9/22/2014 not present 9/30/2014 not present 10/28/2014 not present 11/18/2014 not present 1 = FP measurment taken prior to conducting the AFVR event2 = FP measurment taken after conducting the AFVR event MW3 MW3 MW1 Table 4. Volume of Free Product Recovered by Absorbent Socks Ainsley's Service Center Creswell, Washington County UST Incident # 12442 Well Number Date Dry Weight of Absorbent Sock Installed (ounces) Weight of Absorbent Sock Recovered (ounces) Weight of Recovered LNAPL (lbs) Mass of Recovered LNAPL (slugs) Volume of Recovered LNAPL* (gallons) 2/24/2012 4.0 3/16/2012 4.1 18.8 0.93 0.029 0.16 4/25/2012 4.1 18.7 0.91 0.029 0.16 5/16/2012 4.1 11.8 0.48 0.015 0.09 6/15/2012 4.2 10.7 0.41 0.013 0.07 7/12/2012 4.0 6.7 0.16 0.005 0.03 12/13/2012 5.3 19.4 0.96 0.030 0.17 1/9/2013 4.6 10.6 0.33 0.010 0.06 2/12/2013 5.6 10.0 0.34 0.011 0.06 3/13/2013 5.0 9.9 0.27 0.008 0.05 4/10/2013 5.2 10.3 0.33 0.010 0.06 4/23/2013 5.1 10.5 0.33 0.010 0.06 5/28/2013 5.1 11.1 0.38 0.012 0.07 7/25/2013 4.7 17.3 0.76 0.024 0.14 8/28/2013 4.6 23.9 1.20 0.038 0.21 9/23/2013 5.3 9.6 0.31 0.010 0.06 10/30/2013 4.6 21.9 1.04 0.032 0.18 11/11/2013 4.6 23.0 1.15 0.036 0.20 12/11/2013 4.6 24.5 1.24 0.039 0.22 1/15/2014 4.6 20.8 1.01 0.032 0.18 2/20/2014 4.8 24.1 1.22 0.038 0.22 3/12/2014 4.8 6.4 0.10 0.003 0.02 4/24/2014 4.6 8.0 0.20 0.006 0.04 5/20/2014 4.5 10.1 0.34 0.011 0.06 6/11/2014 4.7 8.5 0.25 0.008 0.04 8/20/2014 4.6 15.1 0.65 0.020 0.12 9/22/2014 3.7 18.0 0.84 0.026 0.15 9/30/2014 3.6 8.1 0.28 0.009 0.05 10/28/2014 3.9 7.3 0.23 0.007 0.04 11/18/2014 3.9 8.0 0.26 0.008 0.05 12/18/2014 3.9 14.1 0.64 0.020 0.11 1/26/2015 3.7 9.8 0.37 0.012 0.07 2/24/2015 4.3 7.3 0.23 0.007 0.04 3/24/2015 4.8 9.2 0.31 0.010 0.05 4/29/2015 4.4 28.5 1.48 0.046 0.26 5/28/2015 3.8 31.9 1.72 0.054 0.31 6/16/2015 4.4 11.8 0.50 0.016 0.09 7/16/2015 3.8 11.9 0.47 0.015 0.08 Totals ≈22.61 0.71 4.02 LNAPL = light non-aqueous phase liquid Mass of recovered gasoline Volume of recovered gasoline MW3 ଶ ୫ୟୱୱ ሺ୫ሻ ୚୭୪୳୫ୣ ሺ୚ሻ ୫ ஡ ୥ୟୱ୭୪୧୬ୣ ୱ୪୳୥ୱ ୥ୟ୪୪୭୬ Table 5. Well Construction and Water Level MeasurementsAinsley's Service Center Creswell, Washington County UST Incident #: 11512MW113 2 3 - 13 100.00 3.63 96.37 2.70 97.30 3.59 96.41 5.27 94.73MW21323 - 1399.383.1696.222.2897.103.1096.284.7994.59MW31323 - 1399.683.3596.332.2497.443.1996.494.9394.75MW430225 - 3099.493.5295.972.0097.493.1896.314.8794.62MW51323 - 1399.783.3996.392.4897.303.3896.405.1294.66MW61323 - 13100.083.9996.093.1296.963.9796.115.6594.43MW71323 - 1399.603.6995.912.4297.183.6295.985.2894.32MW81323 - 1399.213.1796.042.2896.933.0896.134.7394.48MW91323 - 1399.172.7296.451.8897.292.6996.484.4494.73MW101323 - 1399.923.2796.652.3697.563.1996.735.0194.91MW111222 - 1298.903.0095.902.0996.813.0195.894.6694.24MW121222 - 1298.802.7796.031.5997.212.8495.964.4594.35MW131222 - 1299.203.1796.032.2896.923.1596.054.8594.35MW141222 - 1299.093.1895.912.2996.803.0796.024.7194.38MW151126 - 1197.842.3195.531.4496.402.2595.593.7394.11MW161523 - 1598.262.4295.841.5096.762.3995.874.0094.26MW171523 - 15100.284.0296.263.1497.143.9996.295.7394.55MW1840235 - 4098.402.5995.811.8896.522.7195.694.0994.31MW191523 - 1598.432.5495.891.6696.772.5595.884.1194.32MW201523 - 1598.292.3295.971.3896.912.3295.973.9994.30MW211523 - 1598.412.3496.071.4396.982.4096.014.1194.30MW222025 - 20101.485.8395.654.9596.535.8095.687.3794.11MW232025 - 20100.745.2395.514.3796.375.1695.586.6794.07MW242025 - 2098.402.4795.931.5596.852.4995.914.1894.22MW252025 - 2097.972.2195.761.3196.662.1995.783.8394.14MW261222 - 12100.945.6895.264.8296.125.5395.416.9593.99MW2727217 - 27100.885.6195.274.7796.115.4795.416.8794.01MW282323 - 2398.583.0095.582.1196.472.8695.724.4094.18MW292525 - 25101.446.2495.205.3596.095.9995.457.4893.96MW302525 - 25100.075.2394.844.3695.714.9595.126.2593.82MW312525 - 2596.741.6295.120.7496.001.4295.322.7793.97MW322525 - 2597.632.0595.581.1796.461.9795.663.4894.15MW332525 - 2598.591.8196.782.5296.074.2294.37MW342525 - 25101.475.0696.415.7795.707.3494.13RW1244unknown99.614.5995.02RW2234unknown100.78RW3823 - 898.932.1196.820.4298.512.1896.753.8995.04RW47.52unknown99.402.7996.611.4997.912.7096.704.2895.12RW5823 - 899.64All 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 wellElevation of Water12/10/2013Depth to WaterElevation of Water4/23/2013Depth to WaterWell NumberWell DepthWell Diameter (inches)Screened IntervalElevation of CasingInstalled on 11/12/2013Installed on 11/12/20136/16/2015Depth to WaterElevation of Water9/30/2014Depth to WaterElevation of Water Table 6. Summary of Monitoring Well Sampling Analytical Results (Page 1 of 7)Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideleadC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic7/27/19944600 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 NA1/24/199521,000 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 NA7/17/19953000 2800 630 1200 660NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA12/26/20011500 2900 490 2500 200NA74NA NA NA78NA NA NA NA NA NA NA NA NA NA NA NA NA NA64NA NA NA NA3/24/20023700 3900 860 4300 1000NA < 50 NA NA NA100NA NA NA NA NA NA NA NA NA NA NA NA NA NA89NA NA NA NA6/5/20027000 7200 1400 7000 1500NA < 50 NA NA NA340NA NA NA NA NA NA NA NA NA NA NA NA NA NA130NA NA NA NA9/5/20025500 12,000 2100 8200< 200 NA < 200 NA NA NA53NA NA NA NA NA NA NA NA NA NA NA NA NA NA27NA NA NA NA12/19/20028100 6500 1900 8000 2400NA32NA NA NA220NA NA NA NA NA NA NA NA NA NA NA NA NA NA12NA NA NA NA4/1/200310,000 11,000 1600 7500 1800NA < 500 NA NA NA210NA NA NA NA NA NA NA NA NA NA NA NA NA NA19NA NA NA NA6/23/20039600 14,000 2700 15,000< 250 NA < 1200 NA NA NA130NA NA NA NA NA NA NA NA NA NA NA NA NA NA53NA NA NA NA9/11/20035600 11,000 1800 8700< 50 NA < 250 NA NA NA190NA NA NA NA NA NA NA NA NA NA NA NA NA NA110NA NA NA NA5/17/200412/21/20045/21/20086500 5300 1400 5900 580< 50 < 50 < 501600 500 490 110< 50170< 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA24,000 14,700< 10063002/25/20096400 2900 1100 3830 620< 50 < 50 < 501100 340 450 100 61 170< 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA8500 7300< 1008909/15/20094400 4500 1400 6600 340< 50 < 50 < 501900 650 590 250< 50120< 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA6/8/20103400 7300 1500 6900 2300< 50 < 50 < 501800 550 630NA56 160< 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA2/1/20111100 2600 750 3200 2000< 5.014< 5.0890 270 470NA74 210 27 14< 5.05.7< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA11/8/20111500 1200 570 1900 460< 5.06.4< 5.0570 140 400NA61 160 25 9.8< 5.09.9< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA11,000 3000NA36007/10/2012150 39 58 130 120< 5.0 < 5.0 < 5.025 7.1 98NA6.0 60< 5.05.6< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA4/24/2013130 330 220 650 12< 2.5 < 2.5 < 2.5220 61 110NA20 60 11 7.8< 2.54.8< 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA2700 1300NA110012/10/2013300 770 400 1500 6.7< 2.5 < 2.5 < 2.5370 130 140NA18 57 24 7.8< 2.56.7< 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA NA NA NA NA10/1/2014520 870 700 1500< 10 < 5.0 < 5.0 < 5.0820 210 260NA46 110 29 21< 5.020< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA6/16/2015460 910 740 2300< 20 < 10 < 10 < 10950 280 300NA59 180 39 16< 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 NA NA NA NA NA7/27/19945800 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 NA1/24/199517,000 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 NA7/17/199514,000 6000 1900 5000 16,000NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA12/26/20016800 2900 1400 4890 6900NA < 200 NA NA NA86NA NA NA NA NA NA NA NA NA NA NA NA NA NA51NA NA NA NA3/24/20023100 1000 920 2700 3400NA < 100 NA NA NA110NA NA NA NA NA NA NA NA NA NA NA NA NA NA11NA NA NA NA6/5/20024200 1400 950 2610 5200NA < 50 NA NA NA190NA NA NA NA NA NA NA NA NA NA NA NA NA NA17NA NA NA NA9/5/20023900 2000 1000 3120 3400NA58NA NA NA42NA NA NA NA NA NA NA NA NA NA NA NA NA NA11NA NA NA NA12/19/20024700 1900 1200 2910 3500NA20NA NA NA150NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA4/1/20035900 3900 1200 2900 4400NA < 500 NA NA NA150NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA6/23/20037700 3100 1200 3000 7400NA < 500 NA NA NA100NA NA NA NA NA NA NA NA NA NA NA NA NA NA12NA NA NA NA9/11/20033100 3400 1200 4100 1500NA < 250 NA NA NA180NA NA NA NA NA NA NA NA NA NA NA NA NA NA41NA NA NA NA5/17/200436 21 8.8 22 25NA < 5.0 NA NA NA160NA NA NA NA NA NA NA NA NA NA NA NA NA NA18NA NA NA NA12/21/20044.5< 5.0 < 1.0 < 3.040NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA37NA NA NA NA5/21/20084300 370 410 1000 2400< 50 < 50 < 50240 58 320 11< 50 < 50 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA3700 2400< 10041502/25/20094400 200 320 640 2200< 50 < 50 < 50170< 50160 32< 5067< 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA11,000 3010< 1003919/14/20097600 290 1100 1880 2300< 50 < 50 < 50420< 50490 29< 50 < 50 < 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA6/9/20106800 980 810 1390 1200< 50 < 50 < 50260< 50400NA < 50120< 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA NA NA NA NA1/31/20113100 210 420 670 600< 5.028< 5.0200 28 240NA35 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 NA11/7/20116300 130 670 850 530< 5.031< 5.0210 31 330NA49 120 16 5.4< 5.09.0< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA12,000 3200NA1200 J7/11/20126700 110 840 910 550< 5.035< 5.0260 37 280NA42 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 NA4/24/20135900 91 670 280 600< 2.545< 2.556 8.8 430NA72 200 15 11< 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 < 2.5 NA13,000 1300NA140012/10/20138000 63 710 640 650< 5.039< 5.049 8.1 420NA70 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 NA10/1/2014 16000 68 850 790 210< 5.024< 5.063 26 570NA85 230 31 22< 5.016< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA6/16/20155900 130 720 510 360< 5.032< 5.0140 26 560NA110 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 NA7/27/19944800 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 NA1/24/19957/17/199512/26/20013/24/20026/5/20029/5/200212/19/20024/1/20037400 22,000 3300 17,100 6400NA < 500 NA NA NA460NA NA NA NA NA NA NA NA NA NA NA NA NA NA25NA NA NA NA6/23/20039/11/20035/17/200412/21/20045/21/20082/25/20099/14/20096/7/20101/31/20114000 16,000 2400 9300 2100< 2029< 202800 810 940NA140 430 44 20< 20 < 20 < 20 < 20 < 20 < 20 < 20 < 20 < 20 NA NA NA NA NA11/7/20117/11/20128200 13,000 2300 9900 4000< 1040< 102600 1100 900NA170 580 150 58< 1026< 10 < 10 < 10 < 10 < 10 < 10 < 10 NA NA NA NA NA4/23/20133800 4000 1000 3100 1400< 1020< 10740 210 280NA56 140 33 25< 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 < 10 NA14,000 2200NA340012/11/20131700 3200 440 2800 240< 25 < 25 < 25540 140 150NA < 2562< 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 NA NA NA NA NA9/30/20145400 7300 1900 12,000 1600< 2526< 252400 640 680NA160 310 93 82< 2583< 25 < 25 < 25 < 25 < 25 < 25 < 25 NA NA NA NA NA6/16/20154900 8700 1800 6800 2200< 2540< 252200 610 580NA120 330 44< 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 < 25 NA NA NA NA NA1.0 600 600 500 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 2005000 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 NSE510 110 970 6700 6900 3.1 130,000 370 3900 6300 3300 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSEAll concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb). MTBE = Methyl tert-butyl etherGCL = gross contamination levelEDB = Ethylene dibromideShaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl etherRed = Concentration exceeds the GCL1,2-DCA = 1,2-DichloroethaneNA = Not analyzedH = Estimated concentration with a high biasNSE = No standard established1 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 limitMW1MW2Well not sampled, 1.30 feet of free product presentWell not sampled, 2.47 feet of free product presentWell not sampled, 0.08 feet of free product presentWell not sampled, 0.02 feet of free product presentWell not sampled, 1.34 feet of free product presentWell not sampled, 0.71 feet of free product presentWell not sampled, 0.28 feet of free product presentWell not sampled, 0.21 feet of free product presentWell not sampled, 0.20 feet of free product presentWell not sampled, 0.50 feet of free product presentWell not sampled, 0.04 feet of free product presentWell not sampled, 0.15 feet of free product presentWell not sampled, 0.35 feet of free product presentWell not sampled, 0.95 feet of free product presentWell not sampled, 0.24 feet of free product present15A NCAC 2L StandardsGCL10X 15A NCAC 2B StandardsMW3Well not sampled, 0.40 feet of free product presentWell not sampled, 0.55 feet of free product present Well not sampled, 2.28 feet of free product present Table 6. Summary of Monitoring Well Sampling Analytical Results (Page 2 of 7)Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideleadC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic1/24/199522 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 NA7/17/19952.5< 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 NA12/26/2001< 1.09.5 4.2 42 7.9NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA3/24/20025.9 64 50 280 7.5NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA6/5/2002< 1.02.9 1.4 5.7 6.5NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA9/5/2002< 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 NA15NA NA NA NA12/19/2002< 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 NA4/1/20032.2 1.2< 1.0 < 1.098NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA6/23/2003< 1.0 < 5.0 < 1.0 < 3.093NA < 5.0 NA NA NA120NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA9/11/2003< 1.0 < 5.0 < 1.0 < 3.045NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA42NA NA NA NA5/17/2004< 1.0 < 5.0 < 1.0 < 3.038NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA32NA NA NA NA12/21/20044.5< 5.0 < 1.0 < 3.040NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA37NA NA NA NA5/21/2008< 0.5 < 0.5 < 0.5 < 1.551< 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 < 1502/25/2009< 0.5 < 0.5 < 0.5 < 1.530< 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 NA42 J< 150 < 100 < 1509/15/2009< 0.5 < 0.5 < 0.5 < 1.59.9< 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 NA6/9/2010< 0.5 < 0.5 < 0.5 < 1.52.7< 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 NA1/31/2011< 0.5 < 0.5 < 0.5 < 1.52.6< 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 NA11/7/2011< 0.5 < 0.5 < 0.5 < 1.52.2< 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 < 507/11/2012< 0.5 < 0.5 < 0.5 < 1.51.2< 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 NA4/24/2013< 0.5 < 0.5 < 0.5 < 1.50.68 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 < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.50.52 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 NA10/1/2014< 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 NANANA6/16/2015< 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 NANANA1/24/1995< 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 NA7/17/1995< 1.0 < 1.0 < 1.0 < 1.05.3NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA12/26/2001< 1.0 < 1.0 < 1.0 < 1.024NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA74NA NA NA NA3/24/2002< 1.0 < 1.0 < 1.03.3 39NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA14NA NA NA NA6/5/2002< 1.0 < 1.0 < 1.0 < 1.025NA < 1.0 NA NA NA42NA NA NA NA NA NA NA NA NA NA NA NA NA NA32NA NA NA NA9/5/2002< 1.0 < 1.0 < 1.0 < 1.090NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA31NA NA NA NA12/19/2002< 1.0 < 1.0 < 1.0 < 1.090NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA21NA NA NA NA4/1/2003< 1.0 < 1.0 < 1.0 < 1.077NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA18NA NA NA NA6/23/2003< 1.0 < 5.0 < 1.0 < 3.039NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA21NA NA NA NA9/11/2003< 1.0 < 5.0 < 1.0 < 3.034NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA43NA NA NA NA5/17/2004< 1.0 < 5.0 < 1.0 < 3.020NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA17NA NA NA NA12/21/2004< 1.0 < 5.0 < 1.0 < 3.040NA < 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 NA5/21/2008 1< 0.5 < 0.5 < 0.5 < 1.591< 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 < 0.50.76< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 < 1502/25/2009< 0.5 < 0.5 < 0.5 < 1.532< 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 NA40 J< 150 < 100 < 1509/14/2009< 0.5 < 0.5 < 0.5 < 1.537< 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 < 0.50.60< 0.5 < 0.55.5< 0.5 < 0.5 NA NA NA NA NA6/9/2010 2< 0.5 < 0.5 < 0.5 < 1.58.9< 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 < 0.50.67< 0.5 < 0.578< 0.5 < 0.5 NA NA NA NA NA1/31/2011< 0.5 < 0.5 < 0.5 < 1.523< 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 < 0.50.81 6.6 5.2 120 1.2< 0.5 NA NA NA NA NA11/7/2011< 0.5 < 0.5 < 0.5 < 1.525< 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 < 0.51.9 0.64 1.0 120< 0.5 < 0.5 NA63< 50 NA2.1 J7/11/2012< 0.5 < 0.5 < 0.5 < 1.56.6< 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 < 0.5200 1.0 0.60NA NA NA NA NA4/24/2013< 0.5 < 0.5 < 0.5 < 1.54.0< 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 < 0.5130 0.73< 0.5 NA45 J< 50 NA < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.52.1< 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 < 0.591 0.54< 0.5 NA NA NA NA NA10/1/2014< 0.5 < 0.5 < 0.5 < 1.51.6< 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 < 0.564 0.56< 0.5 NA NA NA NA NA6/17/2015< 0.5 < 0.5 < 0.5 < 1.52.1< 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 < 0.592 1.0< 0.5 NA NA NA NA NA1/24/19953500 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 NA7/17/19957300 660 1000 3000 1600NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA12/26/2001970 29 880 1121 110NA < 10 NA NA NA72NA NA NA NA NA NA NA NA NA NA NA NA NA NA40NA NA NA NA3/24/20021000 35 980 1023 310NA < 10 NA NA NA41NA NA NA NA NA NA NA NA NA NA NA NA NA NA14NA NA NA NA6/5/2002890 28 740 840 290NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA40NA NA NA NA9/5/20024100< 501200 410 4800NA < 50 NA NA NA120NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA12/19/20021500 8.2 670 142 1600NA11NA NA NA97NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA4/1/20031300< 10420 58 1800NA < 10 NA NA NA140NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA6/23/2003610< 5.0220 75 380NA9.2NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA11NA NA NA NA9/11/2003460< 25120 30 1100NA < 25 NA NA NA39NA NA NA NA NA NA NA NA NA NA NA NA NA NA30NA NA NA NA5/17/2004960< 250450< 1501500NA < 250 NA NA NA65NA NA NA NA NA NA NA NA NA NA NA NA NA NA12NA NA NA NA12/21/2004400< 120180< 75740NA < 25 NA NA NA28NA NA NA NA NA NA NA NA NA NA NA NA NA NA5.6NA NA NA NA5/21/2008500 7.2 7.2 20 100< 5.0 < 5.0 < 5.0 < 5.0 < 5.0170 47 23 71< 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA860 797< 1009502/25/2009480 6.6< 5.030 210< 5.0 < 5.0 < 5.0 < 5.05.9 140 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 NA1800 780< 1002609/15/2009350 12 95 331 15< 5.0 < 5.0 < 5.046< 5.0110 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 NA6/8/2010430 7.1 13 24 11< 5.0 < 5.0 < 5.05.4< 5.0120NA14 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 NA2/1/2011250< 5.010 22 11< 5.0 < 5.0 < 5.0 < 5.0 < 5.0120NA26 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 NA11/8/2011430 7.0 9.9 51 370< 5.0 < 5.0 < 5.0 < 5.09.8 240NA46 140 13 6.8< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA3600 820NA8107/11/201210< 2.5 < 2.57.2 J 110< 2.5 < 2.5 < 2.5 < 2.5 < 2.553NA12 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 NA4/24/2013< 0.5 < 0.5 < 0.5 < 1.59.9< 0.5 < 0.5 < 0.5 < 0.5 < 0.52.8NA < 0.51.3< 0.51.1< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA96 J 76 JNA45 J12/10/2013< 0.5 < 0.5 < 0.5 < 1.512< 0.5 < 0.5 < 0.5 < 0.5 < 0.52.4NA < 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 NA10/1/2014< 0.5 < 0.5 < 0.5 < 1.51.6< 0.5 < 0.5 < 0.5 < 0.5 < 0.52.4NA < 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 NA6/17/2015< 0.5 < 0.5 < 0.5 < 1.52.6< 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 < 0.50.73< 0.5 < 0.5 NA NA NA NA NA1.0 600 600 500 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 2005000 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 NSE510 110 970 6700 6900 3.1 130,000 370 3900 6300 3300 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSEAll concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb). MTBE = Methyl tert-butyl etherGCL = gross contamination levelEDB = Ethylene dibromideShaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl etherRed = Concentration exceeds the GCL1,2-DCA = 1,2-DichloroethaneNA = Not analyzedH = Estimated concentration with a high biasNSE = No standard established1 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 limit2 6/9/2010 - MW5 - Ethanol (310 ug/L, 2L Std. = 4000 ug/L)MW4"deep"Type IIIwell10X 15A NCAC 2B StandardsMW6MW515A NCAC 2L StandardsGCL Table 6. Summary of Monitoring Well Sampling Analytical Results (Page 3 of 7)Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideleadC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic1/24/1995680 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 NA7/17/1995240< 1.05.0 13 570NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA3/24/200237< 1013 20 600NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA25NA NA NA NA6/5/200224< 1012 28 620NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA52NA NA NA NA9/5/2002<2.0 < 2.0 < 2.04.7 180NA < 2.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA5/21/2008< 0.5 < 0.5 < 0.5 < 1.542< 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 < 1502/25/2009< 0.5 < 0.5 < 0.5 < 1.573< 0.51.1< 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 NA97< 150 < 100 < 1509/14/200936< 0.5 < 0.5 < 1.5240< 0.52.3< 0.5 < 0.5 < 0.5 < 2.0 < 9.80.81< 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 NA6/9/201012 1.2< 0.59.2 44< 0.51.0< 0.50.86< 0.521NA6.1 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 NA2/1/20113.3< 0.5 < 0.52.6 13< 0.50.66< 0.54.2 0.50 2.3NA1.2 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 NA11/7/201113 10< 0.515 5.0< 0.50.77< 0.50.72< 0.50.95 JNA0.77 0.55< 0.50.58< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA430 120NA727/11/20120.53< 0.5 < 0.51.5 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 NA4/24/201313 1.4< 0.515 3.4< 0.5 < 0.5 < 0.51.4< 0.56.6NA3.7 4.6< 0.51.5< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA310 180 JNA96 J12/11/201325 0.71< 0.52.6 4.4< 0.5 < 0.5 < 0.5 < 0.5 < 0.52.0NA0.78 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 NA10/1/20141.9< 0.5 < 0.50.64 J 3.0< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA0.60< 0.5 < 0.50.54< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA6/17/20156.0< 0.5 < 0.5 < 1.50.92 J< 0.5 < 0.5 < 0.5 < 0.5 < 0.50.61 JNA < 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 NA1/24/1995< 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 NA7/17/1995< 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 NA12/26/2001< 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 NA44NA NA NA NA3/24/2002< 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 NA20NA NA NA NA6/5/2002< 1.0 < 1.0 < 1.01.4< 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA24NA NA NA NA9/5/2002< 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 NA12/19/2002< 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 NA4/1/2003< 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 NA6/23/2003< 1.0 < 5.0 < 1.0 < 3.0 < 1.0 NA < 5.0 NA NA NA94NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 5.0 NA NA NA NA9/11/2003< 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 NA17NA NA NA NA5/17/2004< 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 NA12/21/2004< 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 NA5/21/2008< 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 < 1502/25/2009< 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 < 1509/14/2009< 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 NANANANA2/1/2011< 0.5 < 0.5 < 0.5 < 1.522< 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 NA11/7/2011< 0.5 < 0.5 < 0.5 < 1.516< 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 < 507/11/2012< 0.5 < 0.5 < 0.5 < 1.54.6< 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 NA4/24/2013< 0.5 < 0.5 < 0.5 < 1.511< 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 NA3.5 J 12 JNA1.4 J12/11/2013< 0.5 < 0.5 < 0.5 < 1.52.7< 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 NA10/1/2014< 0.5 < 0.5 < 0.5 < 1.54.3< 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 NA6/17/2015< 0.5 < 0.5 < 0.5 < 1.52.1< 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 NA1/24/1995< 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 NA7/17/1995< 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 NA12/26/2001< 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 NA12NA NA NA NA3/24/2002< 1.02.8 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 NA6/5/2002< 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 NA9/5/2002< 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 NA12/19/2002< 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 NA49NA NA NA NA4/1/2003< 1.02.1< 1.01.7< 1.0 NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA35NA NA NA NA6/23/20031.1< 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 NA15NA NA NA NA9/11/2003< 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 NA22NA NA NA NA5/17/2004< 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 NA160NA NA NA NA12/21/2004< 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 NA15NA NA NA NA5/21/2008< 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 < 1502/25/2009< 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 < 1509/15/2009< 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 NANANANA6/8/2010< 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 NANANA2/1/2011< 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 NANANA11/8/2011< 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 < 507/10/2012< 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 NANANA4/24/2013< 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 < 5012/10/2013< 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 NANANA10/1/2014< 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 NANANA6/17/2015< 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 NANANA1.0 600 600 500 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 2005000 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 NSE510 110 970 6700 6900 3.1 130,000 370 3900 6300 3300 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSEAll concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb). MTBE = Methyl tert-butyl etherGCL = gross contamination levelEDB = Ethylene dibromideShaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl etherRed = Concentration exceeds the GCL1,2-DCA = 1,2-DichloroethaneNA = Not analyzedH = Estimated concentration with a high biasNSE = No standard establishedJ = Analyte was positively identified, but the concentration is estimated below the reporting limitMW9MW815A NCAC 2L StandardsGCL10X 15A NCAC 2B StandardsMW7 Table 6. Summary of Monitoring Well Sampling Analytical Results (Page 4 of 7)Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideleadC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic1/24/1995< 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 NA7/17/1995< 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 NA12/26/2001< 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 NA28NA NA NA NA3/24/2002< 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 NA16NA NA NA NA6/5/2002< 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 NA31NA NA NA NA9/5/2002< 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 NA12/19/2002< 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 NA4/1/2003< 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 NA6/23/2003< 1.0 < 5.0 < 1.0 < 3.01.4NA <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 NA9/11/2003< 1.0 < 5.0 < 1.0 < 3.01.4NA <5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA24NA NA NA NA5/17/2004< 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 NA12/21/2004< 1.0 < 5.0 < 1.0 < 3.01.4NA < 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 NA5/21/2008< 0.5 < 0.5 < 0.5 < 1.54.8< 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 < 1502/25/2009< 0.5 < 0.5 < 0.5 < 1.51.3< 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 < 1509/15/2009< 0.5 < 0.5 < 0.5 < 1.56.1< 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 NA6/8/2010< 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 NANANA2/1/2011< 0.5 < 0.5 < 0.5 < 1.51.5< 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 NA11/8/2011< 0.5 < 0.5 < 0.5 < 1.50.59 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 < 507/11/2012< 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 NANANA4/24/2013< 0.5 < 0.5 < 0.5 < 1.50.89 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 < 5017 JNA4.1 J12/10/2013< 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 NANANA10/1/2014< 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 NANANA6/17/2015< 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 NANANA7/17/199542< 1.05.2< 1.041NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA12/26/20012500 120 900 1800 270NA < 25 NA NA NA37NA NA NA NA NA NA NA NA NA NA NA NA NA NA62NA NA NA NA3/24/2002260< 25120 200 26NA < 25 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA6/5/2002790 22 310 466 140NA < 5.0 NA NA NA41NA NA NA NA NA NA NA NA NA NA NA NA NA NA37NA NA NA NA9/5/2002120< 1070 49 59NA < 10 NA NA NA48NA NA NA NA NA NA NA NA NA NA NA NA NA NA11NA NA NA NA12/19/200214< 1.011 3.3 35NA1.9NA NA NA19NA NA NA NA NA NA NA NA NA NA NA NA NA NA11NA NA NA NA4/1/2003< 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 NA6/23/2003< 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 NA14NA NA NA NA9/11/2003160< 2579 38< 5.0 NA < 25 NA NA NA42NA NA NA NA NA NA NA NA NA NA NA NA NA NA33NA NA NA NA5/21/2008920 10 5.1 39 350< 5.07.2 H< 5.0 < 5.0 < 5.0110 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 NA900 487< 1006502/25/2009160< 2.0 < 2.05.2 190< 2.02.8< 2.06.9< 2.027< 104.5 11< 4.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 < 2.0 NA1000 260< 100 < 1009/15/2009780 6.3 4.4 36 92< 2.0 < 2.0 < 2.0 < 2.0 < 2.0140 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 NA6/8/2010250 2.6 11 11 9.8< 2.0 < 2.0 < 2.0 < 2.0 < 2.066NA10 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 NA2/1/2011< 0.5 < 0.5 < 0.5 < 1.51.2< 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 NA11/8/201152 0.78< 0.54.1 9.2< 0.50.79< 0.50.75 0.94 19NA2.9 6.6 0.76 0.57< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA290 120NA1307/10/2012< 0.5 < 0.5 < 0.5 < 1.52.4< 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 NA4/24/2013< 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 NA4.5 J 11 JNA2.5 J12/10/2013< 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 NANANA10/1/2014< 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 NANANA6/17/2015< 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 NANANA7/17/1995< 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 NA12/26/2001< 10 < 10 < 10 < 10690NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA12NA NA NA NA3/24/2002< 10 < 10 < 10 < 10110NA < 10 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA6/5/200221< 5.0 < 5.011 350NA < 5.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA17NA NA NA NA9/5/2002< 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 NA12/19/2002< 1.0 < 1.0 < 1.0 < 1.02.5NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA4/1/2003< 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 NA6/23/2003< 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 NA9/11/2003< 1.0 < 5.0 < 1.0 < 3.03.3NA < 5.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA6.5NA NA NA NA5/17/2004< 1.0 < 5.0 < 1.0 < 3.011NA < 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 NA12/21/2004< 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 NA5/21/2008< 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 < 1502/25/2009< 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 < 1509/14/2009< 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 NANANANA6/8/2010< 0.5 < 0.5 < 0.5 < 1.55.3< 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 NA1/31/2011< 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 NANANA11/7/2011< 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 < 507/11/2012< 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 NANANA4/23/2013< 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 < 5012/11/2013< 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 NANANA10/1/2014< 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 NANANA6/17/2015< 0.50.63< 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 < 0.50.88< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA1.0 600 600 500 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 2005000 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 NSE510 110 970 6700 6900 3.1 130,000 370 3900 6300 3300 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSEAll concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb). MTBE = Methyl tert-butyl etherGCL = gross contamination levelEDB = Ethylene dibromideShaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl etherRed = Concentration exceeds the GCL1,2-DCA = 1,2-DichloroethaneNA = Not analyzedH = Estimated concentration with a high biasNSE = No standard establishedJ = Analyte was positively identified, but the concentration is estimated below the reporting limit15A NCAC 2L StandardsGCL10X 15A NCAC 2B StandardsMW12MW10MW11 Table 6. Summary of Monitoring Well Sampling Analytical Results (Page 5 of 7)Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideleadC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic7/17/1995< 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 NA12/26/2001< 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 NA56NA NA NA NA6/5/2002<1.0 < 1.062< 1.02.7NA < 1.0 NA NA NA < 10 NA NA NA NA NA NA NA NA NA NA NA NA NA NA66NA NA NA NA9/5/2002320 350 270 500 92NA25NA NA NA27NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 11 NA NA NA NA12/19/2002310 210 180 420 18NA1.4NA NA NA53NA NA NA NA NA NA NA NA NA NA NA NA NA NA < 10 NA NA NA NA4/1/20036.6 2.0 4.2 4.4< 1.0 NA < 1.0 NA NA NA33NA NA NA NA NA NA NA NA NA NA NA NA NA NA11NA NA NA NA6/23/200380< 12031< 75 < 25 NA < 120 NA NA NA25NA NA NA NA NA NA NA NA NA NA NA NA NA NA5.2NA NA NA NA9/11/200316< 5.010 13< 1.0 NA < 5.0 NA NA NA28NA NA NA NA NA NA NA NA NA NA NA NA NA NA37NA NA NA NA5/17/2004< 1.0 < 5.03.1< 3.01.8NA < 5.0 NA NA NA1.4NA NA NA NA NA NA NA NA NA NA NA NA NA NA5.4NA NA NA NA12/21/2004< 1.0 < 5.0 < 1.0 < 3.02.3NA < 1.0 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA8.0NA NA NA NA5/21/2008< 0.5 < 0.5 < 0.5 < 1.52.9< 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 < 1502/25/2009< 0.5 < 0.54.2< 1.51.3< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 102.2< 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 < 1509/15/2009< 0.5 < 0.5 < 0.5 < 1.50.79< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 2.0 < 9.41.2< 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 NA2/1/2011< 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 NANANA11/8/2011< 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 < 507/10/2012< 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 NANANA4/24/2013< 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 < 5012/11/2013< 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 NANANA10/1/2014< 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 NANANA6/17/2015< 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 NANANA7/17/1995< 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 NA12/26/2001< 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 NA48NA NA NA NA3/24/2002< 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 NA6/5/2002< 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 NA26NA NA NA NA9/5/2002< 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 NA12/19/2002< 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 NA4/1/2003< 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 NA6/23/2003< 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 NA6.6NA NA NA NA9/11/2003< 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 NA27NA NA NA NA5/17/2004< 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 NA24NA NA NA NA12/21/2004< 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 NA5/21/2008< 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 < 1502/25/2009< 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 < 1509/14/2009< 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 NANANANA6/8/2010< 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 NANANA1/31/2011< 0.5 < 0.5 < 0.5 < 1.55.4< 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 NA11/7/2011< 0.5 < 0.5 < 0.5 < 1.520< 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 NA21 J< 50 NA < 507/11/2012< 0.5 < 0.5 < 0.5 < 1.555< 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 NA4/24/20130.76< 0.5 < 0.50.89 J 1100< 0.54.6< 0.5 < 0.5 < 0.5 < 1.0 NA1.6< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA590 76 JNA29 J12/11/2013240 6.0 2.8 110 1600< 2.514< 2.552 15 24NA9.0 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 NA10/1/2014390 6.6 3.6 53 1100< 2.514< 2.539 11 37NA10 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 NA6/17/20151000 14 10 72 1100< 2.515< 2.540 14 72NA29 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 NA6/23/200367< 250 < 50 < 150190NA < 250 NA NA NA1.2NA NA NA NA NA NA NA NA NA NA NA NA NA NA370NA NA NA NA9/11/2003170< 2529 26 120NA < 25 NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA140NA NA NA NA12/21/2004120< 5.01.3 10 360NA16NA NA NA < 1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA77NA NA NA NA5/21/2008< 0.5 < 0.5 < 0.5 < 1.543< 0.50.91 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 < 5046 J< 10017 J2/25/2009< 0.5 < 0.5 < 0.5 < 1.55.0< 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 < 1509/14/2009< 0.5 < 0.5 < 0.5 < 1.546< 0.50.72< 0.5 < 0.5 < 0.5 < 2.0 < 101.4< 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 NA6/8/2010< 0.5 < 0.5 < 0.5 < 1.525< 0.51.1< 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 NA1/31/2011< 0.5 < 0.5 < 0.5 < 1.53.6< 0.50.52< 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 NA11/8/2011< 0.5 < 0.5 < 0.5 < 1.50.69 J< 0.50.60< 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 NA32 J< 50 NA < 507/11/2012< 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 NANANA4/23/2013< 0.5 < 0.5 < 0.5 < 1.51.2< 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 NA9.8 J< 50 NA < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.51.7< 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 NA9/30/2014< 0.5 < 0.5 < 0.5 < 1.59.6< 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 NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.54.2< 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 NA2/25/2009< 0.5 < 0.5 < 0.5 < 1.545< 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 <1509/15/2009< 0.5 < 0.5 < 0.5 < 1.5110< 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 NA6/8/2010160 2.3 0.80 16 190< 0.52.0< 0.50.97< 0.528NA6.7 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 NA2/1/2011130 2.2 0.76 11 230< 0.53.0< 0.50.84< 0.537NA9.0 17< 0.50.67< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA11/8/2011 1160 4.6 2.9 43 120< 0.51.6< 0.52.0< 0.584NA18 37 0.93 1.5< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA1700 220NA2607/10/2012820 21 27 120 160< 0.55.9< 0.56.3 3.1 180NA42 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 NA4/24/2013180 3.3 2.3 35 120< 0.52.5< 0.51.4 1.1 94NA17 40 2.7 2.9< 0.50.84< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA880 350NA29012/10/20131.4< 0.5 < 0.51.8 80< 0.5 < 0.5 < 0.5 < 0.5 < 0.54.2NA0.87 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 NA10/1/2014< 0.5 < 0.5 < 0.51.2 J 35< 0.5 < 0.5 < 0.5 < 0.5 < 0.530NA3.3 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 NA6/17/2015< 0.5 < 0.5 < 0.5 < 1.51.6< 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 NA2/25/2009530 190 150 860 40< 5.0 < 5.0 < 5.0180 55 68< 1016 29< 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA < 5.0 < 5.0 < 5.0 < 5.0 NA2300 1989< 1001409/14/200952 0.98< 0.514 490< 0.5 < 0.5 < 0.52.4 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 NA6/8/2010 2< 0.5 < 0.5 < 0.5 < 1.539< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA0.53< 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 NA1/31/2011< 0.5 < 0.5 < 0.5 < 1.534< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA0.61< 0.5 < 0.50.71< 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA11/7/2011< 0.5 < 0.5 < 0.5 < 1.525< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA0.83< 0.5 < 0.50.79< 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 507/11/2012< 0.5 < 0.5 < 0.5 < 1.512< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.51.1< 0.5 < 0.5 < 0.5 < 0.5 NA < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA4/24/2013< 0.5 < 0.5 < 0.5 < 1.512< 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 < 0.50.92 2.5 34< 0.5 < 0.5 NA12 J 14 JNA < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.55.5< 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 < 0.52.8 4.1 53< 0.5 < 0.5 NA NA NA NA NA10/1/2014< 0.5 < 0.5 < 0.5 < 1.52.1< 0.5 < 0.5 < 0.5 < 0.5 < 0.50.53 JNA < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.53.9 5.2 85< 0.5 < 0.5 NA NA NA NA NA6/17/2015< 0.5 < 0.5 < 0.5 < 1.50.74 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 < 0.51.4 5.0 100< 0.5 < 0.5 NA NA NA NA NA1.0 600 600 500 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 2005000 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 NSE510 110 970 6700 6900 3.1 130,000 370 3900 6300 3300 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSEAll concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb). MTBE = Methyl tert-butyl etherGCL = gross contamination levelEDB = Ethylene dibromideShaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl etherRed = Concentration exceeds the GCL1,2-DCA = 1,2-DichloroethaneNA = Not analyzedH = Estimated concentration with a high biasNSE = No standard established1 11/8/2011 - MW16 - 1,2-Dichloropropane (0.51 ug/L, 2L Std. = 0.6 ug/L) J = Analyte was positively identified, but the concentration is estimated below the reporting limit2 6/8/2010 - MW17 - Ethanol (220 ug/L, 2L Std. = 4000 ug/L) MW13MW15MW16MW1415A NCAC 2L StandardsGCL10X 15A NCAC 2B StandardsMW17 Table 6. Summary of Monitoring Well Sampling Analytical Results (Page 6 of 7)Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideleadC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic2/25/2009< 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 <1509/15/2009< 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 NANA NA NA NA6/9/2010 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 NANANA1/31/2011< 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 NANANA11/8/2011< 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 < 507/11/2012< 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 NANANA4/23/2013< 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 < 5012/11/2013< 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 NANANA10/1/2014< 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 NANANA6/17/2015< 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 NANANA2/24/2009< 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 <1509/15/2009< 0.52.9< 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 < 0.55.2< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA6/8/2010< 0.50.73< 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 < 0.51.4< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA2/1/2011< 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 < 0.51.2< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA11/8/2011< 0.50.66< 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 < 0.55.8< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 507/12/2012< 0.50.51< 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 < 0.58.2< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA4/23/2013< 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 < 5012/11/2013< 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 NANANA9/30/2014< 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 NANANA6/16/2015 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 NANANA2/25/2009< 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 6.0< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 150 < 100 <1509/14/2009< 0.50.55< 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 NA6/8/2010< 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 NANANA1/31/2011< 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 NANANA11/8/2011< 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 < 507/11/2012< 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 NANANA4/23/2013 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 < 50 < 50 NA < 5012/11/2013 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 NANANA9/30/2014 5< 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 NANANA6/16/2015 6< 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 NANANA2/25/2009< 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 <1509/14/2009< 0.58.7< 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 NA6/8/2010< 0.50.81< 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 NA1/31/2011< 0.51.8< 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 NA11/8/2011< 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 < 507/11/2012< 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 NANANA4/23/2013< 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 < 5012/11/2013< 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 NANANA9/30/2014< 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 NANANA6/16/2015< 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 NANANA11/8/2011 798 2.6< 0.511 550< 0.55.5< 0.5 < 0.5 < 0.50.78 JNA2.9 0.99< 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 < 507/10/2012 886 4.7< 0.527 320< 0.56.1< 0.51.8 0.57 9.9NA12 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 NA4/24/201321 1.7< 0.511 180< 0.54.6< 0.51.6< 0.522NA6.4 15< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA410 120NA12012/10/201326 2.3< 0.59.8 680< 0.56.2< 0.51.3< 0.527NA4.8 12< 0.51.0< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA10/1/20141.6 0.70< 0.520 760< 0.57.2< 0.51.0< 0.531NA6.2 5.6< 0.50.86< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.5210 4.8< 0.5 < 0.5 < 0.53.8NA1.2< 0.5 < 0.50.50< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA11/8/2011 7< 0.5 < 0.5 < 0.5 < 1.521< 0.5 < 0.51.3< 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 < 507/10/2012< 0.5 < 0.5 < 0.5 < 1.562< 0.50.60< 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 NA NA NA NA4/23/2013< 0.5 < 0.5 < 0.5 < 1.5110< 0.51.1< 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 NA55< 50 NA < 5012/11/201330 0.66< 0.50.90 J 190< 0.51.8< 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 NA9/30/2014160 2.7 0.56 17 110< 0.54.1 1.5 0.53< 0.55.6NA5.4 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 NA6/16/2015460 4.8 1.7 15 520< 0.56.5 2.0 0.74< 0.515NA10 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 NA7/10/2012< 0.5 < 0.5 < 0.5 < 1.511< 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 < 0.50.64< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 504/23/2013< 0.5 < 0.5 < 0.5 < 1.517< 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 < 0.50.97< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA5.4 J< 50 NA < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.522< 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 < 0.50.81< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA9/30/2014< 0.5 < 0.5 < 0.5 < 1.55.0< 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 < 0.51.9< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.51.2< 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 < 0.52.4< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA7/10/2012< 0.5 < 0.5 < 0.5 < 1.526< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.53.1< 0.50.56< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA15 J 13 JNA5.8 J4/24/2013< 0.5 < 0.5 < 0.5 < 1.513< 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 < 0.50.60< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA7.3 J< 50 NA < 5012/10/2013< 0.5 < 0.5 < 0.5 < 1.513< 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 < 0.50.65< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA10/1/2014< 0.5 < 0.5 < 0.5 < 1.510< 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 < 0.51.3< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.56.0< 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 < 0.51.9< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA7/10/2012 8< 0.5 < 0.5 < 0.5 < 1.589< 0.50.91< 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 < 504/23/2013< 0.5 < 0.5 < 0.5 < 1.5350< 0.53.3< 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 NA190 12 JNA1.6 J12/11/20133.2< 0.5 < 0.5 < 1.5170< 0.51.8< 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 NA9/30/2014< 0.5 < 0.5 < 0.5 < 1.517< 0.50.57< 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 NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.510< 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 NA7/10/2012< 0.5 < 0.5 < 0.5 < 1.5100< 0.55.2 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 NA10 J< 50 NA < 504/24/2013< 0.5 < 0.5 < 0.5 < 1.5170< 0.56.3< 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 NA71< 50 NA < 5012/10/2013< 0.5 < 0.5 < 0.50.59 J 180< 0.56.7< 0.51.0< 0.50.57 JNA < 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 NA10/1/2014< 0.5 < 0.5 < 0.5 < 1.5180< 0.56.5 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 NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.5210< 0.56.7 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 NA1.0 600 600 500 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 2005000 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 NSE510 110 970 6700 6900 3.1 130,000 370 3900 6300 3300 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSEAll concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb). MTBE = Methyl tert-butyl ether3 4/23/2013 - MW20 - 1,1-Dichloroethane (1.4 ug/L, 2L Std. = 6.0 ug/L)8 7/10/2012 - MW26 - Acetone (16 ug/L, 2L Std. = 6000 ug/L) GCL = gross contamination levelEDB = Ethylene dibromide4 12/11/2013 - MW20 - 1,1-Dichloroethane (1.7 ug/L, 2L Std. = 6.0 ug/L)Shaded = Concentration exceeds the 15A NCAC 2L groundwater standard IPE = Isopropyl ether5 9/30/2014 - MW20 - 1,1-Dichloroethane (2.7 ug/L, 2L Std. = 6.0 ug/L)Red = Concentration exceeds the GCL1,2-DCA = 1,2-Dichloroethane6 6/16/2015 - MW20 - 1,1-Dichloroethane (1.7 J ug/L, 2L Std. = 6.0 ug/L)NA = Not analyzedH = Estimated concentration with a high bias7 11/8/2011 - MW22 - Acetone (4.7 J ug/L, 2L Std. = 6000 ug/L)NSE = No standard established1 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 limit2 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)MW26MW2715A NCAC 2L StandardsGCL10X 15A NCAC 2B StandardsMW23MW22MW19MW18 "deep" Type III wellMW20MW21MW24MW25 Table 6. Summary of Monitoring Well Sampling Analytical Results (Page 7 of 7)Ainsley's Service Center Creswell, Washington County UST Incident #: 11512Well Sample Date benzene tolueneethyl-benzenetotal xylenesMTBE EDB IPE 1,2-DCA1,2,4-trimethyl-benzene1,3,5-trimethyl-benzenenaphthalene2-methyl-naphthaleneisopropyl-benzenen-propyl-benzenen-butyl-benzenesec-butyl-benzenetert-butyl-benzene4-isopropyl-toluenestyrene2-chloro-toluenetetrachloro-ethylenetrichloro-ethylenecis-1,2-dichlor-ethylenetrans-1,2-dichloro-ethylenevinyl chlorideleadC5-C8aliphaticsC9-C18aliphaticsC19-C36aliphaticC9-C22aromatic4/23/2013< 0.5 < 0.5 < 0.5 < 1.51.9< 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 < 5014 JNA < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.5100< 0.50.53< 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 NA9/30/20144.4< 0.5 < 0.5 < 1.5190< 0.52.6< 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 NA6/17/201543 0.94< 0.513 96< 0.51.8< 0.53.7 1.1 0.68 J NA1.0< 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 NA4/23/2013< 0.5 < 0.5 < 0.5 < 1.54.6< 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 < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.531< 0.5 < 0.5 < 0.51.8< 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 NA9/30/2014< 0.5 < 0.5 < 0.5 < 1.511< 0.5 < 0.5 < 0.52.9 0.72< 1.0 NA0.60 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 NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.55.7< 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 NA4/23/2013< 0.5 < 0.5 < 0.5 < 1.56.4< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 1.0 NA < 0.5 < 0.5 < 0.5 < 0.5 < 0.50.88< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA < 50 < 50 NA < 5012/11/2013< 0.5 < 0.5 < 0.5 < 1.543< 0.50.51< 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 NA10/1/2014< 0.5 < 0.5 < 0.5 < 1.5130< 0.51.1< 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 NA6/16/2015< 0.5 < 0.5 < 0.5 < 1.576< 0.51.0< 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 NA4/23/2013 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 < 5013 JNA < 5012/11/2013 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 NANANA9/30/2014 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 NANANA6/16/2015 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 NANANA4/23/2013< 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 NA3.8 J< 50 NA < 5012/11/2013< 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 NANANA9/30/2014< 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 NANANA6/16/2015< 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 NANANA12/10/2013< 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 < 5010/1/2014< 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 NANANA6/17/2015< 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 NANANA12/10/2013< 0.5 < 0.5 < 0.5 < 1.50.51 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 < 5010/1/2014< 0.5 < 0.5 < 0.5 < 1.50.51 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 NA6/16/2015< 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 NANANA5/21/2008470 8.2 74 142 750< 0.53.9 H< 0.528 5.5 11< 104.1 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 NA370 460< 1001672/25/200963 1.7 11 18 78< 0.50.68< 0.55.0 0.70 2.2< 100.87 1.6< 1.0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA240 94< 100 < 1505/21/2008360 8.6 280 57 52< 0.52.5< 0.54.4 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 NA700 1100< 1008302/25/2009390 8.3 140 22 42< 0.51.8< 0.515 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 NA2100 880< 1102745/21/20081200 480 250 1400 4700< 50 < 50 < 0.51300 510 380 110< 50130< 100 < 50 < 5052< 50 < 50 < 50 < 50 < 50 < 50 < 50 NA4900 7900 1300 65002/25/2009850 540 160 1090 1600< 5.0 < 5.0 < 0.5460 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 NA5600 8800 1000 16209/15/2009620 150 64 213 900< 5.0 < 5.0 < 0.5330 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 NA6/8/2010220 51 49 182 200< 0.5 < 0.5 < 0.5110 34 18NA3.6 6.0< 0.50.62< 0.50.85< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA1/31/2011 5530 750 60 270 720< 0.51.4< 0.573 41 11NA2.4 5.3< 0.50.63< 0.52.1< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA11/7/2011 61000 660 92 470 2000< 0.53.8< 0.5350 200 46NA7.9 19< 0.52.5< 0.54.4< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA4900 1800NA18007/12/2012 716 5.2 13 64 23< 0.5 < 0.5 < 0.551 3.8 7.6NA1.7 4.1 1.1 0.74< 0.50.70< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA4/23/2013 8580 80 50 180 460< 0.53.3 1.2 54 41 32NA5.8 13 4.6 2.0< 0.51.5< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA3600 430NA66012/11/201375 16 16 58 88< 0.5 < 0.5 < 0.518 2.7 6.2NA1.3 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 NA9/30/2014 9530 45 170 380 500< 0.51.1< 0.5250 46 36NA13 27 3.5 2.3< 0.51.5< 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 NA NA NA NA NA6/16/2015 10640 30 69 140 830< 0.51.5< 0.556 5.8 19NA3.0 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 NA5/21/20085100 2000 1600 3760< 50 < 50 < 50 < 0.51600 410 530 140 59 230 86 J< 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA10,000 12,900 240 68002/25/20094500 1100 1700 2540< 50 < 50 < 50 < 0.51300 200 440 210 67 200< 100 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 < 50 NA5600 8800 320 16509/15/20093000 130 1800 1148 48< 5.0 < 5.0 < 0.5870 110 420 94 72 210 43 15< 5.016< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA6/8/2010520 67 500 698< 10 < 5.0 < 5.0 < 0.5990 140 260NA54 170 39 14< 5.07.6< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA1/31/2011160 120 240 280< 10 < 5.0 < 5.0 < 0.5330 36 120NA30 120 58 19< 5.08.6< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA NA NA NA NA11/7/2011980 52 950 220 26< 5.0 < 5.0 < 0.5240 25 310NA54 160 32 12< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA6700 2800NA27007/12/2012 11890 45 730 200< 10 < 5.0 < 5.0 < 5.052 7.3 190NA32 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 NA4/23/2013290 34 370 110< 10 < 5.0 < 5.0 < 5.062< 5.0110NA26 90 28 16< 5.08.2< 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA3100 300NA94012/11/2013230 26 450 79 5.3 J< 5.0 < 5.0 < 5.040< 5.0140NA27 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 NA9/30/20141500 37 700 130 140< 5.0 < 5.0 < 5.082 12 230NA41 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 NA6/16/2015540 29 490 100< 10 < 5.0 < 5.0 < 5.029< 5.0170NA36 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 NA5/21/2008530 94 110 230< 5.0 < 5.0 < 5.0 < 0.577 22 36< 105.8 13< 10 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 NA670 690< 1001902/25/2009200 8.1 47 34 2.9< 0.51.1< 0.534 5.1 9.8< 104.5 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 NA660 290 94 J 1701.0 600 600 500 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 2005000 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 NSE510 110 970 6700 6900 3.1 130,000 370 3900 6300 3300 800 3200 800 39 NSE NSE 3300 NSE NSE 33 300 49,000 100,000 24 250 12,000 NSE NSE NSEAll concentrations are expressed in micrograms per liter (ug/L), which is equivalent to parts per billion (ppb). MTBE = Methyl tert-butyl ether4 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 levelEDB = Ethylene dibromide5 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 ether6 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 GCL1,2-DCA = 1,2-Dichloroethane7 7/12/2012 - RW3 - Methyl isobutyl ketone (0.71 ug/L, 2L Std. = 100 ug/L) NA = Not analyzedH = Estimated concentration with a high bias8 4/23/2013 - RW3 - Methyl isobutyl ketone (3.1 ug/L, 2L Std. = 100 ug/L)NSE = No standard established1 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 limit2 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) 117/12/2012 - 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)15A NCAC 2L StandardsMW34MW31MW3210X 15A NCAC 2B StandardsRW4RW2RW3GCLRW5RW1MW33MW29MW30MW28 APPENDIX I NCDENR LETTER DATED JANUARY 8, 2015 Pat McCrory Governor ATA ~CDE~R North Carolina Department of Environment and Natural Resources Mr. Brian Ainsley 2557 Newlands Road Creswell, NC 27925 Dear: Mr. Ainsley: January 8, 2015 Donald R. van der Vaart Secretary Re: Acknowledgement of Remediation Monitoring Report Receipt Ainsley's Service Center 203 Old Highway 64, Creswell, Washington County, NC Incident Number: 11512 Risk Classification: High Ranking: H 190 D The Underground Storage Tank (UST) Section is in receipt of the Remediation Monitoring Report dated November 19,2014. The report has been reviewed and will be maintained in the Washington Regional Office. After review of the report and the incident file this office concurs with the consultant's recommendations and request that you please conduct the following activities or provide the requested information after submitting and receiving signed Directed Preapproval / Claim Authorization forms: • Maintain installation of an absorbent sock into MW-3 to recover free product. • Conduct a semiannual groundwater sampling event including the surface water ditch, all monitoring wells including the new monitoring wells and excluding the sampling ofRW-l, RW-2, RW-5 and MW 3 if containing free product. Sample the monitoring wells using EPA method 6200B. Sample natural attenuation parameters on an annual basis. Submit the semiannual monitoring report by May 1,2015. 1601 Mail Service Center, Raleigh, North Carolina 27699-1601 Phone: 919-707-8600 \ Internet: www.ncdenr.gov An Equal Opportunily \ Affirmative Action Employer -Made in part by recycled paper • Submit a New Technology Cleanup Plan, the delineation of the soil and groundwater contaminant plume is adequate for now. Continued monitoring of the down gradient monitoring wells will determine if expansion of the monitoring well network is needed. • Sample public water supply at Ainsley's or any neighboring property annually if the water lines are in contact with contaminated groundwater. If you have questions regarding the information contained in this letter, please contact me at the address or telephone number listed below. Sincerely, WdJ Bill Crew Hydrogeologist Washington Regional Office UST Section, Division of Waste Management, NCDENR Washington Regional Office cc: Groundwater Management Associates, Inc., 4300 Sapphire Court, Suite 100, Greenville, NC Creswell, NC Water Department, Attn: Neal Place, C/O Town of Creswell, NC P.O. Box 68, Creswell, NC 27928 Washington (WaRO) -943 Washington Square Mall, Washington, NC 27889 (252) 946-6481 UST Regional Offices Asheville (ARO) -2090 US Highway 70, Swannanoa, NC 28778 (828) 296-4500 Fayetteville (FAY) -225 Green Street, Suite 714, Systel Building, Fayetteville, NC 28301 (910) 433-3300 MooresvilIe (MOR) -610 East Center Avenue, Suite 301, Mooresville, NC 28115 (704) 663-1699 Raleigh (RRO) -1628 Mail Service Center, Raleigh, NC 27699 (919) 791-4200 Washington (WaRO) -943 Washington Square Mall, Washington, NC 27889 (252) 946-6481 Wilmington (WIL) -127 Cardinal Drive E>..1:ension, Wilmington, NC 28405 (910) 796-7215 Winston-Salem (WS) -585 Waughtown Street, Winston-Salem, NC 27107 (336) 771-5000 Guilford County Environmental Health, 400 West Market Street, Suite 300, Greensboro, NC 27401, (336) 641-3771 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, Prism Laboratories, Inc., 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 new, decontaminated, disposable bailers and new vinyl rope. Fresh, 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 collected for volatile organic compound analysis by EPA Method 6200B were collected in a bailer and subsequently transferred to 40 milliliter, zero-headspace glass vials. Each groundwater sample was added slowly to the vial to minimize the loss of volatile compounds. Air bubbles were not allowed to be present in the sample container once the Teflon®-lined cap was fitted to the vial. Samples were also collected from wells MW1, MW2, MW6, MW9, MW10, MW11, MW16, MW22, MW25, MW27, and MW30 for analysis of dissolved iron, nitrate, sulfate, alkalinity, and dissolved methane. 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, Prism Laboratories, Inc., for analysis under chain-of-custody protocol. APPENDIX III COPY OF LABORATORY REPORT AND CHAIN-OF-CUSTODY RECORDS Page 1 of 112 Page 2 of 112 Page 3 of 112 Page 4 of 112 Page 5 of 112 Page 6 of 112 Page 7 of 112 Page 8 of 112 Page 9 of 112 Page 10 of 112 Page 11 of 112 Page 12 of 112 Page 13 of 112 Page 14 of 112 Page 15 of 112 Page 16 of 112 Page 17 of 112 Page 18 of 112 Page 19 of 112 Page 20 of 112 Page 21 of 112 Page 22 of 112 Page 23 of 112 Page 24 of 112 Page 25 of 112 Page 26 of 112 Page 27 of 112 Page 28 of 112 Page 29 of 112 Page 30 of 112 Page 31 of 112 Page 32 of 112 Page 33 of 112 Page 34 of 112 Page 35 of 112 Page 36 of 112 Page 37 of 112 Page 38 of 112 Page 39 of 112 Page 40 of 112 Page 41 of 112 Page 42 of 112 Page 43 of 112 Page 44 of 112 Page 45 of 112 Page 46 of 112 Page 47 of 112 Page 48 of 112 Page 49 of 112 Page 50 of 112 Page 51 of 112 Page 52 of 112 Page 53 of 112 Page 54 of 112 Page 55 of 112 Page 56 of 112 Page 57 of 112 Page 58 of 112 Page 59 of 112 Page 60 of 112 Page 61 of 112 Page 62 of 112 Page 63 of 112 Page 64 of 112 Page 65 of 112 Page 66 of 112 Page 67 of 112 Page 68 of 112 Page 69 of 112 Page 70 of 112 Page 71 of 112 Page 72 of 112 Page 73 of 112 Page 74 of 112 Page 75 of 112 Page 76 of 112 Page 77 of 112 Page 78 of 112 Page 79 of 112 Page 80 of 112 Page 81 of 112 Page 82 of 112 Page 83 of 112 Page 84 of 112 Page 85 of 112 Page 86 of 112 Page 87 of 112 Page 88 of 112 Page 89 of 112 Page 90 of 112 Page 91 of 112 Page 92 of 112 Page 93 of 112 Page 94 of 112 Page 95 of 112 Page 96 of 112 Page 97 of 112 Page 98 of 112 Page 99 of 112 Page 100 of 112 Page 101 of 112 Page 102 of 112 Page 103 of 112 Page 104 of 112 Page 105 of 112 Page 106 of 112 Page 107 of 112 Page 108 of 112 Page 109 of 112 !;i!::'~!:,~:;_:;:;; ; :;~:~~: ::,~: ;;; ~~:.;~:~;~:::~:~: ;~:~:::~;:;,:;~;~: ~:".:~: ~:,: ~; ~:r;~>: ;'.:::~;::~:'_::;';;': ';~,;,~,;),: ~;<!,;.:, ,',',', >:';,;:.::;, ~:'.; ::«J'" J'" " '>; .;',',', ,;,;,; '_~:;: .: ~;~;:;:; ;.;.>-:;';,;';'; ;:i'.< '.j:; :i:;:; ,;" "',' /::;:;:i:;:J:I:':'~" ,j,' , ',', :,'.!:.~:!:,,~;' :, ,,', ,',',' ,',',','.,.'.,!.,:,~ .• ~,'.L',','",'_,'''',', '.~,:,!,I"'~'" ,',' ,',',' .',' ,',' ,~,:.','.'.'," ',',',',' .',',,' "',, ',,' •... , , , '.',' .',.'~' .. ' ~'~~~'.r,.' .',. '.'.' .'-,-' .','.I;';':.',";".'~';:"':'':;:'':'Z7;'' I S M I Full-Service Analytical & Environmental Solutions AR()RATnRIF~, INC. 449 Springbrook Road· Charlotte, NC 28217 Phone 704/529-6364 • Fax: 704/525-0409 Client Company Name: _G_M,.r-:A,...-__ --,-____ _ Report To/Contact Na!'"e: K1Lz ~:l,.;LJ: . Reporting Address: 4300 ..>""" hi re-Ct,*5·h!.., (00 G f'e.e1\vl\ k:, t.J t. 4-CHAIN OF CUSTODY RECORD PAGE_t_ OF ~ QUOTE # TO ENSURE PROPER BILLING: ____ _ Project Name: j tHool-A~"I){e...,'~ .!JlU"\I '\U! G/\-\r.r Short Hold Analysis: (Yes) ® rUST Project: ~ (NO) *Please ATTACH any project specific reporting (QC LEVEL IIIIIIIV) provisions and/or QC Requirements Invoice To: _G:=." .c..fI't.:..:A--=--....--__ -.--_---:::--_________ _ Addres~: 2~o 5 -A Lcll)ck ... ", Dr. f\-,.e:.t rJ C Z-"lS 7...3 I -, Phone: (2.$;)15'(,-3310 ·Fax(Yes)t@): ____ _ Email Address: ~I.e... ~tn.::L -(\C , LoJV\ EDD Type: PDF LExcel __ Other ___ -::---.-__ _ Purchase Order No.lBilling Reference. ___________ _ Requested Due Date 0 1 Day 0 2 ~ys 0 3 Days 0 4 Days 0 5 Days "Working Days" 06-9 Days Gl""Standard 10 days 0 Rush Work Must Be TO BE FILLED IN BY CLIENT/SAMPLING PERSONNEL Certification: NELAC __ 000 __ FL __ NC / Site Location Name: A\ast?¥'s ~<if"\l:;('R ~kcSite Location Physical Address: Cry, ./,\\. N L Pre-Approved Samples received after 14:00 will be processed next business day. SC OTHER N/A __ _ > Turnaround time is based on business days, excluding weekends and holidays. (SEE REVERSE FOR TERMS & CONDITIONS REGARDING SERVICES RENDERED BY PRISM LABORATORIES, INC. TO CLIENT) Water Chlorinated: YES_ NoL Sample Iced Upon Collection: YES / NO_ CLIENT SAMPLE DESCRIPTION f.-\U \a Sampler's Signature DATE COLLECTED TIME COLLECTED MILITARY HOURS MATRIX (SOIL, WATER OR SLUDGE) SAMPLE CONTAINER k..c 'TYPE SEE BELOW VoA Sampled By (Print Name) NO. SIZE 3 40f/\L PRESERVA-TIVES I-\L\ REMARKS Affiliation G Upon relinquishing, this Chain of Custody is your authorization for Prism to proceed with the analyses as requested above. Any changes must be submitted in writing to the Prism Project Manager. There will be charges for any changes after analyses have been initialized. I Relinquished By: (Sjgmjlure) /"'I /1 I Receive~ (Signature)/) _." I Date •. '~ I Military/Hours I Additio~al Comments: I RCRA: I CERCLA I LANDFILL I OTHER: o NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC _____ 0 0 0 0 __ _ A = Amber C = Clear G= Glass P = Plastic; TL = Teflon-Lined Cap VOA = Volatile Organics Analysis (Zero Head Space) PRISM LAB IDNO. 0\ O} 0-) 08 ~'o SEE REVERSE FOR 'I1EIlMS & COIIIDI'I110NS II ORIGINAL Page 110 of 112 ;;;:;~<iZ;~.i:.~Lj:;:;:':':':~;~Z!:!Z():':':':':~:I:':!Z':': "':'Z-:'Z'Z!:':.':':':':-:':':!:,I:i.:';';': .';';':':';':':.':,.:0:,.:,:,:,:-:,:,:,,:,: .. :0:':':':':'-.-:,:,:,:,;!:,:,:,:,:,:,:,:,:,.,~,;, .. _:,-._",,_,_,.,~_,.'.1.',.· .. '.' .. '_,_ •.•. '.'_,_'.' I S M I Full-Service Analytical & Environmental Solutions ~~iI<"'LABORATORIES, !NC. 449 Springbrook Road' Charlotte, NC 28217 Phone 704/529-6364 • Fax: 704/525-0409 Client Company Name: --=G=-.:.,.tIl""A'-" ________ _ Report To/Contact Name: Kt Ie {b,,'( it::-. Reporting Address: If 300 3c.~1, I,I\!-0, )Sf<,-, {oo , Grr."i!!l1\t;[l.., i Jc.. ( 'l.7'33lf CHAIN OF CUSTODY RECORD PAGE~ OF ~ QUOTE # TO ENSURE PROPER BILLING: _____ _ Project Name: i\\60\ -A\t'\~\e:t'~ Ser\t't:e ~~r Short Hold Analysis: (Yes) ~ UST Project: @) (NO) *Please ATTACH any project specific reporting (QC LEVEL I 11111 IV) provisions and/or QC Requirements Invoice To: ---=G=-, .:....rJL..;;:...:A'--.------,;;-_-.-_---,.:;:--_________ _ Address: 2.1-05-A ~dy"o Dr, A.">e.-":. !\\C Z7SZ .... ' Phone:Ibi~""331O Fax(Yes)(®: ____ _ Email Address: Jc.:.q'-e.@yt!¥l-1,\c..'(9fV) EDD Type: PDF -LExcel __ Other _____ ..,..-__ Requested Due Date 0 1 Day 0 2 9ays 0 3 Days 0 4 Days 0 5 Days "Working Days" 0 6-9 Days r:i Standard 10 days 0 Rush Work Must Be TO BE FILLED IN BY CLIENT/SAMPLING PERSONNEL Certification: NELAC __ DoD __ FL __ NC / Site Location Name: Abbl.c.( 's Se.r\t<ic.e ~~ SC OTHER N/A, __ _ Water Chlorinated: YES NO 7 Pre-Approved Samples received after 14:00 will be processed next business day. Site Location Physical Addres~: G-r<!'sW.::.H, Jc.. , Turnaround time is based on business days, excluding weekends and holidays. (SEE REVERSE FOR TERMS & CONDITIONS REGARDING SERVICES RENDERED BY PRISM LABORATORIES, INC. TO CLIENT) Sample Iced Upon Collection: YES /NO_ CLIENT SAMPLE DESCRIPTION DATE COLLECTED TIME COLLECTED MILITARY HOURS MATRIX (SOIL, WATER OR SLUDGE) SAMPLE CONTAINER 'TYPE SEE BELOW \loA NO. 3 SIZE 40l'll.L PRESERVA-TIVES REMARKS I Relinquished BY.i.(Jiigl),atu~el /") A 1 ReFiv~ By: (Signature) fI _. ~I 1 D~ate. _I Mililary/Hours 1 Additional Comments: SO\OOY3 CERCLA I LANDFILL I OTHER: o NC 0 SC I 0 NC 0 SC I 0 NC 0 SC I 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC o 0 0 0 0 0 __ _ C = Clear G= Glass P = Plastic; TL = Teflon-Lined Cap VOA = Volatile Organics Analysis (Zero Head Space) PRISM LAB IDNO. II \1 \9; \ '\ 0;0 SEE REVERSE FOR TERMS & CONDITIONS , ORIGINAL Page 111 of 112 ;~i~;1~!';~;~;!'f~~ ;~;:: ::~:::::::::.:;.;:;:: ~;:~:;~;:; ::~;:;:;:;;,;~;:; ~;~;~;~; :;~;: ;."';:;,~;,~,;~; :;~;:;:;:;~;:;:; :i: ;,;,;;,;, ~;,:;:;~, i:;:::;~;:;:; ~ :i:;:i:;:;:;:;: :; :;~i:.>~<;~ ': ;,~,~: i:.i.:; ~::,',:,i:! ;,.,:;:..: :':;:.:';':':':.:':':':': :': ': ':.: ;':':': ;~;:;,;,:,; ::::.:::; :::: :;'. ;:;:~~~; :;,:;: :;~;:;:;:; :;~;~:;:;:: ::,:;,:;:; :: '.::: '.:', ;,; ,','.', ': < ' . '::; ,;': .:;:;:::;:;:;:;: ;:;:;:;:: :;:::;:;:: :::;:;:;:; i ;'.; ';';'. ;,; ';:;', ;:;;;:; ,;, " ,'; ">:'};:::; :;:; :;,:;:;:;:i~;:;:;:;:' :;:;:;~ ~;~i.~;:;,:;:;:; :?j:;:; :;;i :.:--;;;:; ':;:; ;';::;:; :-;;;:; ;;~:~:;~\;;:f«::;:;iiR I S M I Full-Service Analytical & Environmental Solutions 449 Springbrook Road· Charlotte, NC 28217 Phone 704/529-6364 • Fax: 704/525-0409 Client Company Name: -=G:..-M...:;....:.._....",-_-,-_____ _ Report To/Contact Name: K1i.e 9""";c...k.. " Reporting Addres~: 430,,) ,~i'f\'\r.e Lt; ~k, l() 0 6~"\\i'I\~ l NL '1-1'634-Phone: lU015I.-3i'to Fax(Yes)@ ____ _ Email Address: ~~@j!,,~(\c...l:.of'C\ EDD Type: PDF -LExcel __ Other-,----,-__ -.-__ _ Site Location Name: k"c,\g ./ s 5d\l:t.Cl <PAh' C Site Location Physical Address: (fl-;)vre\ \, I\,k CLIENT SAMPLE DESCRIPTION DATE COLLECTED , MATRIX (SOIL, WATER OR SLUDGE) CHAIN OF CUSTODY RECORD PAGE~ OF --.!L QUOTE # TO ENSURE PROPER BILLING: _____ _ Project Name: I H (.,0 \.-A fA s\e./ s ~w'" i t.L ~ -k.,..--Short Hold Analysis: (Yes) @' UST Project: ~ (NO) 'Please ATTACH any project specific reporting (aC LEVEL III mlV) provisions and/or ac Requirements Invoice To: -"'G~rJl:.:.A-=--__.--::;--.----"""---------1.-'Z-05-A ~d,_ .. ! .... Dr. ,sL 2-1 S'l.c3 Requested Due Date 0 1 Day 0 2 ~ys 0 3 Days 0 4 Days 0 5 Days "Working Days" 06-9 Days [!{Standard 10 days 0 Rush Work Must Be Pre-Approved Samples received after 14:00 will be processed next business day. Turnaround time is based on business days, excluding weekends and holidays. (SEE REVERSE FOR TERMS & CONDITIONS REGARDING SERVICES RENDERED BY PRISM LABORATORIES, INC. TO CLIENT) SAMPLE CONTAINER 'TYPE SEE BELOW Vr:;!Jt NO. 3 SIZE 4C)("IL PRESERVA-TIVES /-leI TO BE FILLED IN BY CLIENT/SAMPLING PERSONNEL Certification: NELAC __ 000 __ FL __ NC / SC OTHER N/A. __ _ Water Chlorinated: YES_ NoL Sample Iced Upon Collection: YESL-O_ REMARKS .} PRISM LAB IDNO. ;H ~~ ~\ )'-( I Relinquished By: (Signat';e) ~d , ..... I ReceiveW, (Signat~re) J) I DiPlet' _ A I I MiIi\ary/Hours I Additional Comments: LID WASTE: I RCRA: I CERCLA I LANDFILL I OTHER: o NC 0 SC I ° NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC o 0 0 0 0 0 __ _ C = Clear G= Glass P = Plastic; TL = Teflon-Lined Cap VOA = Volatile Organics Analysis (Zero Head Space) SEE REVERSE FOR TERMS & CONDITIONS Page 112 of 112 ~:2;:2.:::'::;~;!.:~:,:;:;,:;~:~:~:~;~;:::::;:;~::;:;~~·~-',;,t, ;".;,,' '," ',',' ., ",;-;:::;;:;::::::;;::::::::::;: '.;::::;:;:: :::::::::::: :';:;:;:;:;~;!;:::;:;:;:;;;: .. , ;.;,;,;,; '.'::: :::j:i;i:::i:;::,:"::: :;: ,~:~~~~:~~;'~~~,:.',:;.:'.: :-;, ,:,:,>;" :';',:':::;:!>~:;«';I:';':'; ;.;,;,>;.;., ;,;<.;,;.>;.;,;.; :';'~'. ;,;,;,»: ;,;.;.;,;,;, .... .;,;':';.;,; ;';'.;'; ;,;(,;, .;.;.;. <,;': :,;.;,; ;.:';,>;':' N;:':';';'~';':':'!~,I,;~;,,::,,:!,;,;I,:.'";.'.;':';:;'~' .';';;;'j';~;,:,;;!,;::;~::::;::;~;!~;;'Q) I S M I Full-Service Analytical & Environmental Solutions .ABORATOR!ES, INC. 449 Springbrook Road' Charlotte, NC 28217 Phone 704/529-6364 • Fax: 704/525-0409 Client Company Name: ---,G::..,·'~t4..::!A';'-~ ___ ::--1r-____ _ Report To/Contact Name: 14~ 0;'LL Reporting Address: 43()O 5';'?1':k.C( ct, .s"~L\ /()O Gree.1"\\tiliL, fJc-I 'Z-""f634-i CHAIN OF CUSTODY RECORD PAGE~ OF ~ QUOTE # TO ENSURE PROPER BILLING: _____ _ Project Name: III ()"-\f\ L, '. Sa-.vi G2.1"'\u--Short Hold Analysis: (Yes) No UST Project: dYeSb (NO) *Please ATTACH any project specific reporting (QC lEVEWlIl IV) provisions and/or QC Requirements Invoice To: -=G~,A-...-:...A~~_---. __ -=-_________ _ Address: 2205·-A C~t.>\.1"), 'Pr. AfO,{, Me Z7SZ--'; Phone:{:&S;)lS8-:BiD Fax(Yes)@2): ____ _ Email Address:j:...k@J0A-At:..Co...". EDD Type: PDF LExcel Other ____ ---.-__ _ Requested Due Date Cl 1 Day Cl 2 !laYs Cl 3 Days Cl 4 Days Cl 5 Days "Working Days" Cl6-9 Days dStandard 10 days Cl Rush Work Must Be TO BE FILLED IN BY CLIENT/SAMPLING PERSONNE)... Certification: NELAC __ 000 __ FL __ NC_J __ Site location Name: Ai'o~.j' S 54X'\f;Ltl C,-,~r Site location Physical Addres~: ttl CnsJd\} NC" Pre-Approved Samples received after 14:00 will be processed next business day. SC OTHER N/A __ _ Water Chlorinated: YES_ No2 Turnaround time is based on business days, excluding weekends and holidays, (SEE REVERSE FOR TERMS & CONDITIONS REGARDING SERVICES RENDERED BY PRISM LABORATORIES, INC. TO CLIENT) Sample Iced Upon Collection: YES / NO_ TIME MATRIX SAMPLE CONTAINER I I ~§o/ ANALYSIS REQUESTED CLIENT I DATE I COLLECTED (SOIL, PRESERVA-/ / / / / SAMPLE DESCRIPTION COLLECTED MILITARY WATER OR 'TYPE l TIVES REMARKS HOURS SLUDGE) SEE BELOW NO. SIZE fYlW3 i I c,/ll.iZol~' I /5" 35 WlJ.;~( voA :? 4~r'\L I ~ <.-\ "-":/'7:30 (7: 5"0 .sJI I~'JJO sWz.. to ( n /ZolS I { Z: 00 StJ3 /2:(0 u Sampled By (Print Name) Sampler's Signature ;'JL Affiliation C;VI.A '10 Upon relinquishing, this<Chain of Custody is your authorization for Prism to proceed with the analyses as requested above. Any changes must bE!' submitted in writing to the Prism Project Manager. There will be charges for any changes after analyses have been initialized. f~urs Additional Comments: tJY.fl-o Hand"delivered 0 Prism Field Service I:ilOther /~-. ~/'-" \0 NPDES: I UST: I GROUNDWATER: I !llRINKING WATER: I 'SOLID WASTE: I RCRA: I CERCLA I LANDFILL I OTHER: o NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC 0 NC 0 SC o 0 0 0 0 0 0 0 0 __ _ *CONTAINER TYPE CODES: A = Amber C = Clear G= Glass P = Plastic; TL = Teflon-Lined Cap VOA = Volatile Organics Analysis (Zero Head Space) PRISM LAB IDNO" ')'J ')'''/ "\" "> l,p }7 )'( )9 SEE REVERSE FOR TERMS & CONDITIONS nnl(:o:i\;lll