Loading...
HomeMy WebLinkAboutWA-26440_31636_CA_MRP_20200103  WithersRavenel   Our People. Your Success.    115 MacKenan Drive | Cary, NC 27511  t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. C‐0832  Cary | Greensboro | Pittsboro | Raleigh | Wilmington  January 3, 2020    State of North Carolina  Department of Environment Quality   Federal & State Lead Program  Division of Waste Management‐Underground Storage Tank Section   1646 Mail Service Center  Raleigh, North Carolina 27699‐1646    Attn: Mr. Scott Ryals    RE: SUSBSEQUENT MONITORING REPORT  Barber’s Amoco  101 Bridge Street  Washington, Beaufort County, North Carolina  Groundwater Incident Number: 31636  WR Project Number:  02171214.00    Mr. Ryals:    WithersRavenel, Inc. (WR) has completed this Subsequent Monitoring Report to document  groundwater sampling activities described in our proposal number TA‐02 for the above  referenced site, approved by the UST Section on November 7, 2019. The enclosed report  summarizes the results of these recently completed activities.       WR appreciates the opportunity to be of service to the Federal & State Lead Program.  Should  you have any questions regarding the attached, please do not hesitate to contact Matt James at  (919) 469‐3340.    Cordially,  WithersRavenel      Kevin B. Buchanan G. Matthew James, PG  Staff Environmental Scientist II Senior Geologist          Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  i  TABLE OF CONTENTS    Section A. Site Information ..................................................................................................... 1  Section B. Executive Summary .............................................................................................. 2  Section C. Site History and Characterization ....................................................................... 4  Section D. Presentation of Current Assessment information ............................................. 7  Section E. Conclusions and Recommendations ................................................................... 9    FIGURES    Figure 1 General Location Map  Figure 2 Site Map   Figure 3 Groundwater Table Contour Map – November 26, 2019  Figure 4 Groundwater Analytical Data – November 26, 2019  Figure 5 Benzene Plume in Groundwater – November 26, 2019  Figure 6 Xylene Plume in Groundwater – November 26, 2019  Figure 7 Naphthalene Plume in Groundwater – November 26, 2019  Figure 8 Receptor Map       TABLES    Table B‐1 Site History: UST/AST System and Other Release Information   Table B‐4 Summary of Groundwater Analytical Results  Table B‐5A Public and Private Water Supply Well Information  Table B‐5B Additional Receptor Information  Table B‐7 Monitoring and Remediation Well Construction Information  Table B‐9  Current and Historical Groundwater Elevations and Free Product Thickness    APPENDICES    Appendix A Laboratory Analytical Report and Chain‐of‐Custody  Appendix B  Copy of Field Notes  Appendix C Photographic Documentation  Appendix D General Standard Operating Procedures        Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  2  SECTION B. EXECUTIVE SUMMARY    1. Summary of Activities Associated with Current TA    WR performed groundwater assessment activities including the purging and sampling of site  monitoring wells MW‐1, MW‐2, MW‐17 and WRMW‐1.     2.  Soil, Groundwater, Surface Water, and Free Product Assessment Information    Soils    No soil samples were obtained by WR in association with this task authorization; however, based  on data for soil samples obtained by previous consultants on the site, naphthalene was detected  at a concentration above Soil to Groundwater MSCCs in a sample collected during installation of  monitoring well WRMW‐1. According to previous reports, soil samples collected during the  installation of MW‐17 for the adjacent LUST incident in 2001 indicated the presence of  petroleum contaminants, but WR does not have a copy of the analytical results. No additional  soil assessment appears to have been conducted at the site, to date.    Groundwater    Analytical data for groundwater samples collected from monitoring wells MW‐1, MW‐2, MW‐17  and WRMW‐1 on November 26, 2019 showed several petroleum related compounds at levels  exceeding their respective 2L Standards defined by NCAC Title 15A, Subchapter 2L, Section  .0202 (Water Quality Standards for Class GA Groundwater) and NCAC Title 15A Subchapter 2B,  in each of the wells.  No compounds were reported at concentrations that exceeded their  respective Gross Contaminant Levels (GCLs).  The greatest concentrations of contaminants were  identified in MW‐1 and WRMW‐1, consistent with past data for samples collected from the  monitoring wells related to the release at the site.      No recent data has been provided for monitoring well(s) MW‐18 and MW‐19 (installed and  associated with the Former Bridge Street BP incident #20467) downgradient of the source area  and impacted wells MW‐1 and WRMW‐1. According to the Groundwater Monitoring Report  (January 16, 2009) by EMS Environmental, Inc., targeted compounds were detected at  concentrations that exceed their respective 2L Standards in the downgradient off‐site  monitoring wells MW‐18 and MW‐19 from 2001 until 2004, after which these wells were  reportedly destroyed.  Analytical data from 2010 did not reveal targeted compounds at levels  exceeding the laboratory detection limits in monitoring well MW‐4 (also reportedly destroyed),  which is located in the vicinity of these two wells. Contaminant concentrations exceeding their  respective 2L Groundwater Standards were shown in downgradient monitoring well MW‐3 (also  reportedly destroyed). Monitoring wells MW‐3 and MW‐4 have not been located for sampling  since November 2010. Based on the historical data, additional assessment is needed to  determine the lateral extents of the groundwater plume to determine if the plume is migrating  towards the Pamlico River, located approximately 300 feet south of the site. The Pamlico River is  classified as SC;NSW secondary recreation; nutrient sensitive waters.      Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  3    Free Product  No free product was measured in any wells on the site by WR in November 2019.  However,  free product was measured in monitoring well WRMW‐1 at a thickness of 0.02 feet during the  July 2009 sampling event. Free product has not been detected at the site during any other  sampling event.     3. Receptor Information    No impacted receptors have been identified in association with the subject release. Based on a  receptor survey performed in 2007 by WR, six (6) private water supply wells (WSWs) were  identified within 1,500 feet of the source area at the site.  The nearest well (WSW‐2) is located  approximately 320 feet northwest of the site.  None of the identified wells are utilized for  drinking.  All of the properties identified with water supply wells are connected to the municipal  water system supplied by the Town of Washington.     The Pamlico River is located approximately 300 feet south of the site. The Pamlico River is  classified as SC;NSW secondary recreation; nutrient sensitive waters.    4. Recommendations    WR recommends the following for this site:       WR recommends the following activities based on the contaminant concentrations identified  in groundwater monitoring activities:  o Replacement offsite monitoring wells:  MW‐3 and MW‐4.  o Conduct a slug test on two groundwater monitoring wells,  o Collect groundwater samples from the newly installed and existing groundwater  monitoring wells and submit them to a laboratory for analysis of VOCs and natural  attenuation parameters.  o Perform an injection of an oxidant or carbon‐based product to reduce dissolved  phase concentrations to less than 10 times the 2B standards.      Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  4   SECTION C. SITE HISTORY AND CHARACTERIZATION    WR has completed groundwater sampling activities at the subject site.  The following  information summarizes the site history and characterization.      1. UST Information    The approximate former location(s) of the UST systems reportedly removed from the site are  depicted on Figure 2, as are the locations of monitoring wells installed as a part of assessment  activities in association with the release.      WR is not aware of any aboveground storage tanks (ASTs) located on the subject site. Table  B‐1 includes information regarding the USTs formerly reported on the property.       2.  Description of Release/General Assessment History    The following summary of the assessment history is based on WR’s review of historical files  for the subject incident:     June 1990. Six gasoline USTs were removed. The sizes of the USTs are unknown. Soil  samples collected at tank closure did not indicate any contamination. Groundwater was  not sampled.   August 2001 ‐ As part of sampling at the Former Bridge Street BP Station (UST Incident  #20467) monitoring well MW‐17 was installed on the subject property in the area of the  former dispenser islands. Soil samples collected during well installation and groundwater  samples obtained from monitoring well MW‐17 indicated the presence of petroleum.   September 27, 2006.  A receptor survey was conducted. Six water supply wells were  detected within 1,500 feet of the site.  None of the wells are used for drinking and all  properties are connected to the municipal water system. The Pamlico River was noted to  be 300 feet to the south of the site.   December 5, 2006. MW‐17 was sampled and monitoring well WRMW‐1 was installed at  the southern end of the former tank basin. WRMW‐1 was installed to a depth of 10 feet  below land surface. Both MWs contained petroleum contamination above 2L standards  but WRMW‐1 contained benzene above its respective GCL.  Several constituents were  also noted to be 10 x 2B standards.   March 29, 2009. A LUST Action Plan was completed by the NCDENR. The plan  recommended monitored natural attenuation (MNA) with insitu bioremediation as the  corrective action remedy of the subject site. The insitu remediation will be accomplished  by the installation of biodegradable Biosoks®. The monitor wells will periodically be  sampled, every six months or as funds allow, to evaluate groundwater quality and future  site closure. The action plan stated that free product has never been detected at the  subject site, but if free product should occur, removal will be by hand bailing, AFVR, or  MMPE depending on the product levels encountered.   July 2009. Terraine installed and sampled monitoring wells MW‐1 and MW‐2. Free  product was detected in WRMW‐1 and groundwater samples from monitoring wells  MW‐1, MW‐2 and MW‐17 contained contaminant concentrations in excess of the 2L  Standards. Bioremediation was initiated in the four monitoring wells by installing  Universal Remediation, Inc. PRP® Well Booms. Well Booms contain powdered beeswax  that stimulates indigenous microbes and promotes rapid biodegradation of free phase  product and dissolved petroleum contaminants.      Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  5   February 2010 and February 2013: Groundwater monitoring was conducted on  monitoring wells MW‐1, MW‐2, MW‐17, and WRMW‐1. Insitu bioremediation was  implemented using the well booms.  No free product was identified in monitoring well  WRMW‐1.  Petroleum related compounds were detected above the 2L standard in all  four of the wells. None of the compounds exceeded GCLs.    January 2015: Groundwater monitoring was conducted on monitoring wells MW‐1, MW‐ 2, MW‐17 and WRMW‐1. Analytical data for groundwater samples analyzed by SM  6200B showed one or more targeted compounds at levels exceeding their respective 2L  Standards in monitoring wells MW‐1, MW‐2, MW‐17 and WRMW‐1. No GCLs violations  were reported.  The greatest concentrations of contaminants were identified in MW‐1  and WRMW‐1, which is consistent with past data for samples retained from the  monitoring wells related to the release at the site. A concentration of 1,2,3‐ trichloropropane was detected above the 2L standard in monitoring well WR‐MW‐1. This  compound is commonly used as an industrial solvent and is not considered attributed  with the subject petroleum release.   October 2017: Groundwater monitoring was conducted on monitoring wells MW‐1,  MW‐2, MW‐17 and WRMW‐1. Analytical data for groundwater samples analyzed by SM  6200B showed one or more targeted compounds at levels exceeding their respective 2L  and 10 times 2B Standards in monitoring wells MW‐1, MW‐2, MW‐17 and WRMW‐1.  No GCLs violations were reported.  The greatest concentrations of contaminants were  identified in MW‐1 and WRMW‐1, consistent with past data for samples retained from  the monitoring wells related to the release at the site.    3.  Brief Description of Site Characteristics    The property is located at 101 Bridge Street in a commercial and residential area of  Washington, Beaufort County, North Carolina (Figure 1).  The site includes a single‐story slab‐ on‐grade brick building with a former attached 3 bay garage. The property is presently used as  a medical equipment retail store. Surface coverings noted on the site include grass lawn,  concrete parking, and asphalt pavement.  Site features, the former UST area, and monitoring  well locations are depicted on Figure 2.  The Beaufort County, NC Tax Department identifies  the property as PIN # 01009033.  The site is currently owned by Tri‐Star Aviation &  Development, LTD.  The site is zoned by the Beaufort County Planning Department as  business (B1H).     4.  Information on Receptors/Potential Receptors    A receptor survey was performed by WR at the property in 2007.  A total of six private water  supply wells (WSWs) were identified within 1,500 feet of the source area at the site.  The  nearest well (WSW‐2) is located approximately 320 feet northwest of the site.  None of the  identified wells are utilized for drinking.  Five of the identified wells are used for irrigation and  one is used for geothermal purposes at a residence.  All of these properties with water supply  wells are connected to the municipal water system supplied by the Town of Washington.   Regionally, overland flow drains to the Pamlico River located approximately 300 feet south of  the site.  The Pamlico River is classified as SC;NSW secondary recreation; nutrient sensitive  waters.      The 1985 “Geologic Map of North Carolina” shows the site lies within the Yorktown Formation  of the Coastal Plain Physiographic Province.  The Yorktown formation is typically characterized  as a fossiliferous clay with varying amounts of fine‐grained sand, bluish gray, shell material    Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  6  commonly concentrated in lenses; mainly north of the Neuse River.  Field classification of soils  encountered indicated silty sands from the ground surface to 10 feet below land surface (BLS).      The NC Source Water Assessment Program (SWAP) administered by the NCDEQ‐Public Water  Supply Section does not identify any well head protection of community supply wells within ½  mile of the source area at the site.        Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  7    SECTION D. PRESENTATION OF CURRENT ASSESSMENT INFORMATION    On November 26, 2019, WR personnel mobilized to the subject property to perform a  groundwater sampling event including:       The collection of groundwater level measurements for each well targeted for sampling,   Purging and subsequent sampling of monitoring wells MW‐1, MW‐2, MW‐17, and WRMW‐ 1.    The current site conditions are documented in the photographs that are included in Appendix C.   Figure 2 shows the locations of the former UST area, existing monitoring wells and site  structures.  Groundwater sampling and associated analytical data are discussed in the following  paragraphs.      1 Groundwater Monitoring    Monitoring Well Gauging     Prior to the collection of groundwater samples as described in the following paragraphs, the  depth to water within each monitoring well slated for sampling was gauged with an electronic  water level indicator.  These measurements were later utilized to determine the relative  groundwater elevations of each well for the estimation of groundwater flow through the site.  Following decontamination of the water level indicator (prior to each measurement), the  indicator probe was lowered into the well(s) and the depth to groundwater relative to each wells’  top of casing (TOC) was recorded.    Water level measurements as recorded on November 26, 2019 ranged from 8.10 feet beneath  the top of casing (TOC) in MW‐1 to 9.01 feet beneath TOC in MW‐2.  Based on groundwater  elevation measurements obtained, groundwater flow moves to the south, with a southeastern  trend.  This groundwater flow direction is consistent with those observed in historical gauging  events.  Groundwater flow as determined based on the November 26, 2019 water level  measurements is depicted on Figure 3.  Field notes/purge forms prepared during the  performance of activities at the site during November 2019 are presented in Appendix B.      Monitoring Well Sampling     Groundwater samples were obtained from monitoring wells MW‐1, MW‐2, MW‐17, and  WRMW‐1 on November 26, 2019. Each well was purged and sampled with an individual  polyethylene bailer as described in the procedures outlined in Appendix D.  The samples from  the wells were decanted directly into pre‐preserved laboratory grade sample containers provided  by Prism Laboratories, Inc. (Prism), the laboratory to which samples were ultimately submitted  for analysis.      Sample containers were labeled with appropriate and accurate information and stored in an ice‐ chilled cooler pending transport to the laboratory.  After completion of an appropriate purge,  groundwater samples were decanted directly from the bailer(s) into laboratory prepared sample  containers holding appropriate preservative(s) as required.  Groundwater samples were  submitted to Prism for analysis by SM6200B.  Field notes associated with the performance of  assessment activities at the site are included in Appendix B.      Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  8    Laboratory Results    Analytical data for groundwater samples collected in groundwater monitoring wells MW‐1, MW‐ 2, MW‐17 and WRMW‐1 showed several petroleum related compounds at levels exceeding  their respective 2L Groundwater and 10 times 2B Standards in each of the wells sampled.  No  compounds were identified at concentrations that exceeded their respective GCLs.  The greatest  concentrations of contaminants were identified in MW‐1 and WRMW‐1, consistent with past  data for samples collected from the monitoring wells related to the release at the site. The  groundwater analytical results are summarized in Table B‐4 and shown on Figure 4.   Isoconcentration maps depicting the estimated lateral extents of benzene, total xylenes and  naphthalene are included as Figures 5, 6 and 7, respectively.  Laboratory data for samples  obtained in November 2019 show a slight (though not substantial) decrease in contaminants  present over those identified in October 2017.      Analytical results of groundwater samples collected in the groundwater monitoring wells MW‐1  and WRMW‐1 show petroleum related compounds at concentrations that are well above the 2L  Groundwater Standards.  These wells are located near the southern property boundary and  down‐gradient from the source areas.  Based on the concentrations of the identified compounds,  and the location of these wells, it is apparent the contaminant plume has migrated offsite to the  south, and, based on previous data for MW‐3 (destroyed) to the southeast.  The southern  adjacent property has recently been redeveloped into residential property.          Barber’s Amoco  Incident # 31636  WR Project # 02171214.00   Subsequent Monitoring Report      January 2020  9      SECTION E. CONCLUSIONS AND RECOMMENDATIONS    This report documents the results of groundwater sampling activities conducted during  November 2019 at the former Barber’s Amoco site (Incident #31636).  Conclusions based on  observations, analytical data, and research relating to the release at the site include the  following:     WR performed groundwater sampling at the site on November 26, 2019.     Analytical data for groundwater samples collected from monitoring wells MW‐1, MW‐2,  MW‐17 and WRMW‐1 showed one or more petroleum related compounds at levels  exceeding their respective 2L Groundwater and / or 10 times the 2B Standards,    No compounds were identified at concentrations that exceeded their respective GCLs,   Water level measurements ranged from 8.10 feet beneath TOC (MW‐1) to 9.01 feet beneath  TOC (MW‐2).  Based on groundwater elevation measurements, groundwater flow trends to  the south/southeast,     The Pamlico River is located approximately 300 feet south of the site and is classified as  SC;NSW secondary recreation; nutrient sensitive waters,   The site lies within the Yorktown Formation of the Coastal Plain Physiographic Province,   No wellhead protection areas or community supply wells were identified within ½ mile of the  site,   Based on the current network of monitoring wells, the surficial groundwater contaminant  plume has not been adequately defined to levels equivalent to 2L Standards, as there are no  recent analytical data available down gradient of the source area.    Based on the results of the activities documented in this report, WR recommends the following:    o Replacement offsite monitoring wells:  MW‐3 and MW‐4.  o Conduct a slug test on two groundwater monitoring wells,  o Collect groundwater samples from the newly installed and existing groundwater  monitoring wells and submit them to a laboratory for analysis of VOCs and natural  attenuation parameters.  o Perform an injection of an oxidant or carbon‐based product to reduce dissolved  phase concentrations to less than 10 times the 2B standards.          FIGURES TABLES UST IDNumberCurrent/LastContents*PreviousContents*Capacity(in gallons)ConstructionDetails**TankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofUST***Was release associated with UST System? (Y/N)1 Gasoline N/A 2,000 Unknown Unknown Unknown May 1961Permanently Closed By Removal(June 30, 1990)Y2 Gasoline N/A 3,000 Unknown Unknown Unknown May 1961Permanently Closed By Removal(June 30, 1990)Y3 Gasoline N/A 3,000 Unknown Unknown Unknown May 1961Permanently Closed By Removal(June 30, 1990)Y4 Gasoline N/A 3,000 Unknown Unknown Unknown May 1961Permanently Closed By Removal(June 30, 1990)Y5 Gasoline N/A 3,000 Unknown Unknown Unknown May 1961Permanently Closed By Removal(June 30, 1990)Y6 Gasoline N/A 2,000 Unknown Unknown Unknown May 1961Permanently Closed By Removal(June 30, 1990)YAST IDNumberCurrent/LastContents*PreviousContents*Capacity(in gallons)ConstructionDetails**TankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofAST***Was release associated with AST System? (Y/N)N/A N/A N/A N/A N/A N/A N/A N/A N/A N/AIncidentNumberMaterialReleasedDateofRelease31636 Gasoline UnknownNotes:1.) W&R is not aware of any ASTs associated with the subject site.* Gasoline (leaded or unleaded), Diesel, used oil, waste oil, aviation fuel, etc. or pesticides, non-halogenated or halogenated solvents, etc.** Fiberglass (single- or double-walled), steel (single- or double-walled), steel with FRP (single- or double-walled), steel with liner, other, unknown*** Currently operational, not in use or temporarily closed (specify date), permanently closed in place (specify date), permanently closed by removal Table B-1Site History: UST/AST System & Other Release InformationBarbers AmocoPetroleum contamination was identified in soil samples collected during adjacent LUST site's assessment activities. 101 Bridge StreetWashington, Beaufort County, NCIncident Number: 31636Description of ReleasePage 1 of 1 Calculated Oxygenates AcetoneBenzenen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChloroformDi-isopropyl ether (IPE)EthylbenzeneIsopropylbenzenep-IsopropyltolueneMethylene ChlorideMethyl tert-butyl etherNaphthalenen-PropylbenzeneStyreneTetrachloroetheneToluene1,2,3-Trichloropropane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal XyleneTert-amyl Alcohol67-64-1 71-43-2 104-51-8 135-98-8 98-06-6 67-66-3 108-20-3 100-41-4 98-82-8 99-87-6 75-09-2 1634-04-4 91-20-3 103-65-1 100-42-5 127-18-4 108-88-3 96-18-4 95-63-6 108-67-8 NA 75-85-4 7/23/2009 ND 2240 300 4710 760 ND ND 4670 ND 167 ND ND 1110 748 40.1 ND 28200 ND 4710 5030 21030 NR 2/9/2010 ND 967 ND ND ND 112 ND 2750 104 ND ND ND 1050 344 ND ND 12600 ND 2610 641 10900 NR 6/25/2010 ND 1940 ND 30.3 <5 ND ND 6270 308 60.1 ND ND 1650 759 27.4 ND 22200 ND 7550 1920 17050 NR 11/13/2010 ND 1060 ND 31.2 <5 ND ND 5080 306 62.7 ND ND 1340 702 26.7 ND 25700 ND 7910 2100 21680 NR 2/20/2013 180 44 86 24J ND 44 ND 3500 210 10J ND ND 580 630 ND ND 4700 ND 3200 850 13200 NR 1/14/2015 <10000 120 17 12 <1.0 <5.0 <1.0 2600 120 18 <5.0 <1.0 <1000 310 <1.0 <1.0 19000 <2.5 1800 490 10700 NR 10/26/2017 <2500 <50 41.4 34.3 <50 <250 <50 4450 200 <50 <250 <50 1010 579 <50 <50 7190 <125 3940 934 20190 <2500 11/26/2019 <31 <4.8 78 <50 <8.8 <7.6 <5.0 3100 220 <8.9 <8.3 <4.2 750 600 <4.7 <9.8 270 <14 3500 850 14000 NR 7/23/2009 ND ND ND ND ND ND ND 3010 167 ND ND ND 1170 471 18.7 NR 14100 ND 3720 1040 17920 NR 2/9/2010 ND ND ND ND ND 10.2 ND 335 20.4 ND ND ND 103 45.9 ND NR 1170 ND 525 156 2079 NR 6/25/2010 ND <2.11 <20 23.5 NR ND ND 4930 224 52.5 <5 <5 1410 487 <5 NA 11900 <10 5410 895 25590 NR 11/13/2010 ND <5 <20 <5 NR ND ND 2490 166 65.1 <5 <5 743 362 <5 NA 8810 <10 2920 876 14490 NR 2/20/2013 270 ND 100 25 ND 42 ND 2500 210 16 NR ND 550 560 ND NR 5300 ND 3400 820 11400 NR 1/14/2015 150 <1.0 15 13 <1.0 <5.0 <1.0 1200 110 4.4 <5.0 <1.0 290 300 <1.0 <1.0 1700 <2.5 1600 280 4800 NR 10/26/2017 <2500 <50 32.3 27.8 <50 <250 <50 726 148 <50 <250 <50 296 429 <50 <50 334 <125 1140 190 2357 <2500 11/26/2019 <3.1 <0.48 44 27 <0.88 <0.76 <0.50 580 150 <5.0 <0.83 <0.42 300 410 <0.47 <0.98 110 <1.4 1200 160 1600 NR 6/25/2010 ND 155 <2 27.7 NR ND ND 2560 292 67.1 <0.5 <0.5 1460 773 <0.5 NA 10800 <1 2890 1420 16620 NR 11/13/2010 ND 96.5 <3 29 NR ND ND 3020 207 47 <25 <25 829 510 <25 NA 6440 <50 3380 882 12170 NR 11/26/2019 6/25/2010 ND <0.5 <2 <0.5 NR ND ND <0.5 <0.5 <0.5 <0.5 <0.5 <2 <1 <0.5 NA <0.5 <1 <0.5 <0.5 <0.5 NR 11/13/2010 ND <0.5 <2 <0.5 NR ND ND <0.5 <0.5 <0.089 <0.19 <0.169 <0.094 <0.065 <0.074 0.41 <0.65 <0.138 <0.103 <0.087 <0.176 NR 11/26/2019 7/23/2009 ND 101 ND ND ND ND ND 479 77.7 ND ND ND 243 196 ND NR 2240 ND 420 114 1475 NR 2/9/2010 ND 75 ND 16 ND 26.1 ND 761 88 ND ND ND 249 226 ND NR 3670 ND 708 131 2573 NR 6/25/2010 ND 18 ND 6.07 ND ND 6.54 450 49.6 1.61 ND ND 115 99 <0.5 NR 1750 ND 292 54.1 1175 NR 11/13/2010 ND 83.4 ND 21.3 ND ND <0.092 1910 189 8.29 ND ND 551 372 33.7 NR 11900 ND 1500 339 8120 NR 2/20/2013 220 5.5J 32 14 ND 39 ND 890 92 ND ND ND 220 230 ND NR 3300 ND 600 120 2610 NR 1/14/2015 <50 <1.0 12 10 <1.0 <5.0 <1.0 660 74 1.4 <5.0 <1.0 150 170 <1.0 <1.0 1500 <2.5 400 70 1300 NR 10/26/2017 <2500 <50 21.3 20.9 <50 <250 <50 999 144 <50 <250 <50 249 342 <50 <50 1650 <125 643 125 2477 <2500 11/26/2019 <100 <0.48 39 27 <0.88 <0.76 <0.50 370 230 <100 <0.83 <0.42 120 500 <0.47 <0.98 150 <1.4 220 44 620 NR 7/23/2009 2/9/2010 ND 3680 ND 63.7 ND 22.7 ND 4960 517 ND NA 17 2360 1210 ND NR 2880 ND 4240 2160 18810 NR 6/25/2010 ND 6250 <22.6 <25 <25 ND <25 4950 393 65.5 45 <25 1420 792 <25 NR 2190 104 7330 1340 21760 NR 11/13/2010 ND 4720 <3 36.5 <4.45 ND <4.8 5690 393 71.5 <9.5 <8.45 1440 748 <3.7 NR 1450 <6.9 5870 1360 22520 NR 2/20/2013 ND 3500 ND ND ND ND ND 5600 260 ND ND ND ND 580 ND NR 300 ND 3900 1200 15580 NR 1/14/2015 <50 2300 23 16 <1.0 <5.0 <1.0 5800 280 7.6 <5.0 <1.0 880 390 <1.0 <1.0 1400 3.1 4500 1100 16000 NR 10/26/2017 <50 140 1.6 1.34 <1 <5 <1 223 14.4 <1 <5 <1 42 37 <1 <1 5.37 <2.5 1.01 <1 9.076 10.8 11/26/2019 <31 440 150 55 <8.8 <7.6 <5.0 5600 380 <50 <8.3 <4.2 1500 920 <4.7 <9.8 550 <14 6700 1600 13000 NR 6000 1 70 70 70 70 70 600 70 25 5 20 6 70 70 0.7 600 0.005 400 400 500 40 6,000,000 5,000 6,900 8,500 15,000 70,000 70,000 84,500 25,000 11,700 5,000 20,000 6,000 3,000 70,000 700 260,000 NL 28,500 25,000 85,500 4,000 3,000 510 5,500 NL NL 1,700 NL 250 110,000 NL 5,900 15,000 520 32,000 NL 33 3,700 0.1 NL 2,150 NL NL Notes: 1.) All results provided in ug/L (micrograms per liter) or parts per billion NL = Not Listed NA = Compound Not Analyzed for by Laboratory. 3.) NC 2L Standard - North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L NR = Compound Not Reported By Previous Consultants 4.) GCLs for Groundwater = NCDENR UST Section Gross Contamination Levels for Groundwater ND = Compound Not Detected. 5.) Monitoring wells MW-1A, MW-2AR, and MW-3A were labeled as MW-1, MW-2, and MW-3 on the September 9, 2014 COC.Result = Result Exceeds Laboratory Detection Limits Result = Result Exceeds 2L Standard Result = Result Exceeds GCL Value Result = Result 10 Times 15A NCAC 2B Value for Saltwater Aquatic and / or Human Health Sample ID Date Collected 2.) Compounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. 10 Times 15A NCAC 2B or National Criteria per EPA (Saltwater Aquatic Life and / or Human Health Standards) MW-1 MW-2 MW-17 GCLs for Groundwater NC 2L Standard Well Not Sampled - Free Product Present WRMW-1 MW-4 MW-3 Not Sampled Not Sampled Barbers Amoco TABLE B-4 Washington, Beaufort County, NC Incident Number: 31636 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS Analytical Method 6200B - Volatile Organic Compounds 101 Bridge Street Page 1 of 1 Easting Northing1 1002391511 West Main Street Washington, NC 27889Charles & Anne O'Neal511 West Main Street Washington, NC 27889Irrigation Unknown Unknown 325' Cross-gradient 2576606.33 658784.022 1012108520 West Main Street Washington, NC 27889Robert & Victoria Murphy11410 Winding Way Road Charlotte, NC 28226Irrigation Unknown Unknown 320' Cross-gradient 2576635.71 659054.263 1021361519 Main Street Washington, NC 27889Frederick & Cheryl Austin519 Main Street Washington, NC 27889Irrigation Unknown Unknown 410' Cross-gradient 2576525.23 658846.294 1007543527 Main Street Washington, NC 27889Barbara Winfield527 Main Street Washington, NC 27889Irrigation Unknown Unknown 480' Cross-gradient 2576433.55 658899.175 1001926411 East Main Street Washington, NC 27889Havens Mill Properties LLC 108 Hardys Hill LaneEdenton, NC 27932Irrigation Unknown Unknown 630' Cross-gradient 2577343.82 658434.816 15000439110 Gladden Street Washington, NC 27889City of WashingtonP.O. Box 1988 Washington, NC 27889Cooling System Unknown Unknown 730' Cross-gradient 2577680.82 658753.66 3.) Well distance from source area values was calculated by WR based on well locations provided in 2007 Phase I LSA.Well UseWell Screen Interval(feet) 2.) Information regarding the water supply well's use and location was obtained from a 2007 receptory survey associated with the subject release. 1.) Well location addresses and property owner information was obtained from the Beaufort County GIS Department.TABLE B-5APUBLIC & PRIVATE WATER SUPPLY WELL INFORMATIONBarbers Amoco101 Bridge StreetWashington, Beaufort County, NC 4.) WR has not performed a recent receptor survey associated with the subject release.Incident Number: 31636Location Relative to Groundwater FlowWell ID Property AddressParcelNumberWell Distance from Source Area(feet)Well Coordinates(NC State Plane NAD 83 Feet)Property Owner AddressNotes: Well Depth(feet)Property OwnerPage 1 of 1 Easting NorthingN/A Pamlico River N/A N/A SC:NSW 300 DOWNGRADIENT 2576753.68 658639.20TABLE B-5BADDITIONAL RECEPTOR INFORMATIONBarbers Amoco101 Bridge StreetWashington, Beaufort County, NCReceptor IDLocation of Significant Points(NC State Plane NAD 83 Feet)LocationContactInformationUsageIncident Number: 31636Distance from Source Area(feet)Location Relative to Groundwater FlowNotes: DescriptionPage 1 of 1 Easting NorthingMW-1 7/22/2009 2 12.0 7 7 - 12 100.00 11/26/2019 8.10 NM 91.90 2576905.88 658824.57MW-2 7/22/2009 2 12.0 7 7 - 12 101.02 11/26/2019 9.01 NM 92.01 2576961.04 658938.70MW-3 6/25/2010 2 12.0 2 2 - 12 100.52 11/26/2019 NM NM NA 2576949.26 658801.05MW-4 6/25/2010 2 10.0 2 2 - 10 98.67 11/26/2019 NM NM NA 2576837.46 658717.92MW-17 Unknown 2 15.7 Unknown Unknown 100.29 11/26/2019 8.27 NM 92.02 2576906.60 658940.23WRMW-1 12/6/2006 2 10.0 5 5 - 10 100.08 11/29/2019 8.12 NM 91.96 2576879.99 658846.62 5.) NM = Not MeasuredTotal Depth (feet) 1.) Well construction information was obtained from previous consultants reports. 3.) Groundwater elevation calculated by: (Top-of-Casing - Depth-to-Water) + (Free Product Thickness x 0.8581)Date Water Level MeasuredIncident Number: 31636Well IDWell Coordinates(NC State Plane NAD 83 Feet)Depth-to-Water from Top-of-Casing(feet) 4.) N/A = Not ApplicableTABLE B-7101 Bridge StreetMONITORING & REMEDIATION WELL CONSTRUCTION INFORMATIONWell Casing Diameter(inches)Free Product Thickness(feet)Screened Interval (feet) 2.) Top-of-Casing elevations were determined by previous consultants and are relative to an approximate site elevation of 100.0 feet above mean sea level.Top-of-Casing Elevation (feet)Well Casing Depth (feet)Barbers AmocoWashington, Beaufort County, NCNotes: Date InstalledGroundwaterElevation (feet)Page 1 of 1 Well ID Screened Interval (feet) Top-of-Casing Elevation (feet) Date Water Level Measured Depth-to-Product (feet) Depth-to-Water Uncorrected (feet) Free Product Thickness (feet) Depth-to-Water Corrected (feet) Groundwater Surface Elevation (feet) 7/22/2009 --- 8.45 --- 8.45 91.55 2/9/2010 --- 7.01 --- 7.01 92.99 6/26/2010 --- 8.79 --- 8.79 91.21 11/13/2010 --- 8.02 --- 8.02 91.98 2/20/2013 --- 8.97 --- 8.97 91.03 1/14/2015 --- 8.31 --- 8.31 91.69 10/26/2017 --- 8.32 --- 8.32 91.68 11/26/2019 --- 8.10 --- 8.10 91.90 7/22/2009 --- 9.46 --- 9.46 91.56 2/9/2010 --- 7.86 --- 7.86 93.16 6/26/2010 --- 9.75 --- 9.75 91.27 11/13/2010 --- 9.02 --- 9.02 92.00 2/20/2013 --- 9.26 --- 9.26 91.76 1/14/2015 --- 9.06 --- 9.06 91.96 10/26/2017 --- 9.15 --- 9.15 91.87 11/26/2019 9.01 --- 9.01 92.01 6/26/2010 --- 9.31 --- 9.31 91.21 11/13/2010 --- 8.56 --- 8.56 91.96 6/26/2010 --- 7.57 --- 7.57 91.10 11/13/2010 --- 6.70 --- 6.70 91.97 7/22/2009 --- 8.71 --- 8.71 91.58 2/9/2010 --- 7.16 --- 7.16 93.13 6/26/2010 --- 9.00 --- 9.00 91.29 11/13/2010 --- 8.25 --- 8.25 92.04 2/20/2013 --- 8.55 --- 8.55 91.74 1/14/2015 --- 8.33 --- 8.33 91.96 10/26/2017 --- 8.42 --- 8.42 91.87 11/26/2019 --- 8.27 --- 8.27 92.02 7/22/2009 --- 8.55 --- 8.55 91.53 2/9/2010 --- 7.10 --- 7.10 92.98 6/26/2010 --- 8.88 --- 8.88 91.20 11/13/2010 --- 8.10 --- 8.10 91.98 2/20/2013 --- 8.87 --- 8.87 91.21 1/14/2015 --- 8.29 --- 8.29 91.79 10/26/2017 --- 8.32 --- 8.32 91.76 11/26/2019 --- 8.12 --- 8.12 91.96 Unknown 100.29 WRMW-1 5 - 10 100.08 MW-17 MW-2 MW-1 7 - 12 100.00 7 - 12 101.02 MW-3 MW-4 2 - 12 100.52 2 - 10 98.67 3.) Groundwater elevation calculated by: (Top-of-Casing - Depth-to-Water) + (Free Product Thickness x 0.8581) 2.) Top-of-Casing elevations were determined by previous consultants. Notes: 1.) Well construction information and was obtained from previous consultants reports. TABLE B-9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & FREE PRODUCT THICKNESS Barbers Amoco 101 Bridge Street Washington, Beaufort County, NC Incident Number: 31636 Page 1 of 1 APPENDIX A Laboratory Analytical Report and Chain-of-Custody This data package contains the analytical results for the project identified above and includes a Case Narrative, Sample Results and Chain of Custody. Unless otherwise noted, all samples were received in acceptable condition and processed according to the referenced methods. Data qualifiers are flagged individually on each sample. A key reference for the data qualifiers appears at the end of this case narrative. NC Certification No. 402 NC Drinking Water Cert No. 37735 SC Certification No. 99012 Case Narrative 12/10/19 12:40 Withers & Ravenel Matt James 115 Mackenan Dr. BUILDING 117 Cary, NC 27511 Project: Barbers Amoco Project No.: 02171214.00 Lab Submittal Date: 12/03/2019 Prism Work Order: 9120021 Please call if you have any questions relating to this analytical report. Respectfully, PRISM LABORATORIES, INC. VP Laboratory Services Reviewed ByAngela D. Overcash Terri W. Cole For Angela D. Overcash Project Manager Data Qualifiers Key Reference: Method Detection LimitMDL Below Reporting LimitBRL Relative Percent DifferenceRPD *Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and reporting limit indicated with a J. This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 1 of 18 Sample Receipt Summary 12/10/2019 Prism Work Order: 9120021 Client Sample ID MatrixLab Sample ID Date/Time Sampled Date/Time Received 9120021-01 11/26/19 11:45MW-1 12/03/19 11:30Water 9120021-02 11/26/19 11:20WRMW-1 12/03/19 11:30Water 9120021-03 11/26/19 10:30MW-2 12/03/19 11:30Water 9120021-04 11/26/19 11:00MW-17 12/03/19 11:30Water Samples were received in good condition at 2.6 degrees C unless otherwise noted. This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 2 of 18 Client ID ResultParameterMethod UnitsPrism ID Prism Work Order: 9120021 12/10/2019 Summary of Detections 3500 ug/L9120021-01 MW-1 1,2,4-Trimethylbenzene *SM6200 B 850 ug/L9120021-01 MW-1 1,3,5-Trimethylbenzene *SM6200 B 3100 ug/L9120021-01 MW-1 Ethylbenzene *SM6200 B 220 ug/L9120021-01 MW-1 Isopropylbenzene (Cumene)*SM6200 B 10000 ug/L9120021-01 MW-1 m,p-Xylenes *SM6200 B 750 ug/L9120021-01 MW-1 Naphthalene *SM6200 B 78 ug/L9120021-01 MW-1 n-Butylbenzene *SM6200 B 600 ug/L9120021-01 MW-1 n-Propylbenzene *SM6200 B 3600 ug/L9120021-01 MW-1 o-Xylene *SM6200 B 270 ug/L9120021-01 MW-1 Toluene *SM6200 B 14000 ug/L9120021-01 MW-1 Xylenes, total *SM6200 B 6700 ug/L9120021-02 WRMW-1 1,2,4-Trimethylbenzene *SM6200 B 1600 ug/L9120021-02 WRMW-1 1,3,5-Trimethylbenzene *SM6200 B 440 ug/L9120021-02 WRMW-1 Benzene *SM6200 B 5600 ug/L9120021-02 WRMW-1 Ethylbenzene *SM6200 B 380 ug/L9120021-02 WRMW-1 Isopropylbenzene (Cumene)*SM6200 B 12000 ug/L9120021-02 WRMW-1 m,p-Xylenes *SM6200 B 1500 ug/L9120021-02 WRMW-1 Naphthalene *SM6200 B 150 ug/L9120021-02 WRMW-1 n-Butylbenzene *SM6200 B 920 ug/L9120021-02 WRMW-1 n-Propylbenzene *SM6200 B 1300 ug/L9120021-02 WRMW-1 o-Xylene *SM6200 B 55 ug/L9120021-02 WRMW-1 sec-Butylbenzene *SM6200 B 550 ug/L9120021-02 WRMW-1 Toluene *SM6200 B 13000 ug/L9120021-02 WRMW-1 Xylenes, total *SM6200 B 1200 ug/L9120021-03 MW-2 1,2,4-Trimethylbenzene *SM6200 B 160 ug/L9120021-03 MW-2 1,3,5-Trimethylbenzene *SM6200 B 580 ug/L9120021-03 MW-2 Ethylbenzene *SM6200 B 150 ug/L9120021-03 MW-2 Isopropylbenzene (Cumene)*SM6200 B 1200 ug/L9120021-03 MW-2 m,p-Xylenes *SM6200 B 300 ug/L9120021-03 MW-2 Naphthalene *SM6200 B 44 ug/L9120021-03 MW-2 n-Butylbenzene *SM6200 B 410 ug/L9120021-03 MW-2 n-Propylbenzene *SM6200 B 360 ug/L9120021-03 MW-2 o-Xylene *SM6200 B 27 ug/L9120021-03 MW-2 sec-Butylbenzene *SM6200 B 110 ug/L9120021-03 MW-2 Toluene *SM6200 B 1600 ug/L9120021-03 MW-2 Xylenes, total *SM6200 B 220 ug/L9120021-04 MW-17 1,2,4-Trimethylbenzene *SM6200 B 44 ug/L9120021-04 MW-17 1,3,5-Trimethylbenzene *SM6200 B 370 ug/L9120021-04 MW-17 Ethylbenzene *SM6200 B 230 ug/L9120021-04 MW-17 Isopropylbenzene (Cumene)*SM6200 B 490 ug/L9120021-04 MW-17 m,p-Xylenes *SM6200 B 120 ug/L9120021-04 MW-17 Naphthalene *SM6200 B 39 ug/L9120021-04 MW-17 n-Butylbenzene *SM6200 B 500 ug/L9120021-04 MW-17 n-Propylbenzene *SM6200 B This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 3 of 18 Client ID ResultParameterMethod UnitsPrism ID Prism Work Order: 9120021 12/10/2019 Summary of Detections 130 ug/L9120021-04 MW-17 o-Xylene *SM6200 B 27 ug/L9120021-04 MW-17 sec-Butylbenzene *SM6200 B 150 ug/L9120021-04 MW-17 Toluene *SM6200 B 620 ug/L9120021-04 MW-17 Xylenes, total *SM6200 B This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 4 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: MW-1 Prism Sample ID: 9120021-01 Prism Work Order: 9120021 Time Collected: 11/26/19 11:45 Time Submitted: 12/03/19 11:30 02171214.00 Volatile Organic Compounds by GC/MS BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 111,1,1,2-Tetrachloroethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.11,1,1-Trichloroethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 3.61,1,2,2-Tetrachloroethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.61,1,2-Trichloroethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 8.31,1-Dichloroethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 8.31,1-Dichloroethylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.11,1-Dichloropropylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 401,2,3-Trichlorobenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 141,2,3-Trichloropropane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 131,2,4-Trichlorobenzene 3500 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.41,2,4-Trimethylbenzene BRL *SM6200 B P9L015010020012/6/19 21:59 JLBug/L 171,2-Dibromo-3-chloropropane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.11,2-Dibromoethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.61,2-Dichlorobenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.61,2-Dichloroethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 111,2-Dichloropropane 850 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.61,3,5-Trimethylbenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.41,3-Dichlorobenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 4.31,3-Dichloropropane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.01,4-Dichlorobenzene BRL *SM6200 B P9L015010020012/6/19 21:59 JLBug/L 112,2-Dichloropropane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.62-Chlorotoluene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.04-Chlorotoluene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 8.94-Isopropyltoluene BRL *SM6200 B P9L0150100100012/6/19 21:59 JLBug/L 31Acetone BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 4.8Benzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.7Bromobenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 14Bromochloromethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.2Bromodichloromethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 4.0Bromoform BRL *SM6200 B P9L015010010012/6/19 21:59 JLBug/L 18Bromomethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 11Carbon Tetrachloride BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.2Chlorobenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 22Chloroethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.6Chloroform BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.9Chloromethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.6cis-1,2-Dichloroethylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.9cis-1,3-Dichloropropylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 8.1Dibromochloromethane BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.5Dibromomethane BRL *SM6200 B P9L015010010012/6/19 21:59 JLBug/L 11Dichlorodifluoromethane BRL *SM6200 B P9L01501002000012/6/19 21:59 JLBug/L 2700Ethanol This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 5 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: MW-1 Prism Sample ID: 9120021-01 Prism Work Order: 9120021 Time Collected: 11/26/19 11:45 Time Submitted: 12/03/19 11:30 02171214.00 3100 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.1Ethylbenzene BRL *SM6200 B P9L015010020012/6/19 21:59 JLBug/L 16Hexachlorobutadiene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.0Isopropyl Ether 220 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 5.4Isopropylbenzene (Cumene) 10000 *SM6200 B P9L015010010012/6/19 21:59 JLBug/L 12m,p-Xylenes BRL *SM6200 B P9L015010010012/6/19 21:59 JLBug/L 6.5Methyl Butyl Ketone (2-Hexanone) BRL *SM6200 B P9L015010050012/6/19 21:59 JLBug/L 24Methyl Ethyl Ketone (2-Butanone) BRL *SM6200 B P9L015010010012/6/19 21:59 JLBug/L 7.8Methyl Isobutyl Ketone BRL *SM6200 B P9L015010020012/6/19 21:59 JLBug/L 8.3Methylene Chloride BRL *SM6200 B P9L015010010012/6/19 21:59 JLBug/L 4.2Methyl-tert-Butyl Ether 750 *SM6200 B P9L015010010012/6/19 21:59 JLBug/L 19Naphthalene 78 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.6n-Butylbenzene 600 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 8.7n-Propylbenzene 3600 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 4.4o-Xylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.6sec-Butylbenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 4.7Styrene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 8.8tert-Butylbenzene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 9.8Tetrachloroethylene 270 *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 4.4Toluene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.0trans-1,2-Dichloroethylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 12trans-1,3-Dichloropropylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 7.8Trichloroethylene BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 6.2Trichlorofluoromethane BRL *SM6200 B P9L015010050012/6/19 21:59 JLBug/L 6.0Vinyl acetate BRL *SM6200 B P9L01501005012/6/19 21:59 JLBug/L 9.7Vinyl chloride 14000 *SM6200 B P9L015010015012/6/19 21:59 JLBug/L 15Xylenes, total Surrogate Recovery Control Limits 70-130101 %4-Bromofluorobenzene 70-130105 %Dibromofluoromethane 70-13098 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 6 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: WRMW-1 Prism Sample ID: 9120021-02 Prism Work Order: 9120021 Time Collected: 11/26/19 11:20 Time Submitted: 12/03/19 11:30 02171214.00 Volatile Organic Compounds by GC/MS BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 111,1,1,2-Tetrachloroethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.11,1,1-Trichloroethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 3.61,1,2,2-Tetrachloroethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.61,1,2-Trichloroethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 8.31,1-Dichloroethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 8.31,1-Dichloroethylene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.11,1-Dichloropropylene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 401,2,3-Trichlorobenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 141,2,3-Trichloropropane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 131,2,4-Trichlorobenzene 6700 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.41,2,4-Trimethylbenzene BRL *SM6200 B P9L015010020012/6/19 22:33 JLBug/L 171,2-Dibromo-3-chloropropane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.11,2-Dibromoethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.61,2-Dichlorobenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.61,2-Dichloroethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 111,2-Dichloropropane 1600 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.61,3,5-Trimethylbenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.41,3-Dichlorobenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 4.31,3-Dichloropropane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.01,4-Dichlorobenzene BRL *SM6200 B P9L015010020012/6/19 22:33 JLBug/L 112,2-Dichloropropane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.62-Chlorotoluene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.04-Chlorotoluene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 8.94-Isopropyltoluene BRL *SM6200 B P9L0150100100012/6/19 22:33 JLBug/L 31Acetone 440 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 4.8Benzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.7Bromobenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 14Bromochloromethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.2Bromodichloromethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 4.0Bromoform BRL *SM6200 B P9L015010010012/6/19 22:33 JLBug/L 18Bromomethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 11Carbon Tetrachloride BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.2Chlorobenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 22Chloroethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.6Chloroform BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.9Chloromethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.6cis-1,2-Dichloroethylene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.9cis-1,3-Dichloropropylene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 8.1Dibromochloromethane BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.5Dibromomethane BRL *SM6200 B P9L015010010012/6/19 22:33 JLBug/L 11Dichlorodifluoromethane BRL *SM6200 B P9L01501002000012/6/19 22:33 JLBug/L 2700Ethanol This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 7 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: WRMW-1 Prism Sample ID: 9120021-02 Prism Work Order: 9120021 Time Collected: 11/26/19 11:20 Time Submitted: 12/03/19 11:30 02171214.00 5600 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.1Ethylbenzene BRL *SM6200 B P9L015010020012/6/19 22:33 JLBug/L 16Hexachlorobutadiene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.0Isopropyl Ether 380 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 5.4Isopropylbenzene (Cumene) 12000 *SM6200 B P9L015010010012/6/19 22:33 JLBug/L 12m,p-Xylenes BRL *SM6200 B P9L015010010012/6/19 22:33 JLBug/L 6.5Methyl Butyl Ketone (2-Hexanone) BRL *SM6200 B P9L015010050012/6/19 22:33 JLBug/L 24Methyl Ethyl Ketone (2-Butanone) BRL *SM6200 B P9L015010010012/6/19 22:33 JLBug/L 7.8Methyl Isobutyl Ketone BRL *SM6200 B P9L015010020012/6/19 22:33 JLBug/L 8.3Methylene Chloride BRL *SM6200 B P9L015010010012/6/19 22:33 JLBug/L 4.2Methyl-tert-Butyl Ether 1500 *SM6200 B P9L015010010012/6/19 22:33 JLBug/L 19Naphthalene 150 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.6n-Butylbenzene 920 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 8.7n-Propylbenzene 1300 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 4.4o-Xylene 55 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.6sec-Butylbenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 4.7Styrene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 8.8tert-Butylbenzene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 9.8Tetrachloroethylene 550 *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 4.4Toluene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.0trans-1,2-Dichloroethylene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 12trans-1,3-Dichloropropylene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 7.8Trichloroethylene BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 6.2Trichlorofluoromethane BRL *SM6200 B P9L015010050012/6/19 22:33 JLBug/L 6.0Vinyl acetate BRL *SM6200 B P9L01501005012/6/19 22:33 JLBug/L 9.7Vinyl chloride 13000 *SM6200 B P9L015010015012/6/19 22:33 JLBug/L 15Xylenes, total Surrogate Recovery Control Limits 70-130100 %4-Bromofluorobenzene 70-130102 %Dibromofluoromethane 70-130101 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 8 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: MW-2 Prism Sample ID: 9120021-03 Prism Work Order: 9120021 Time Collected: 11/26/19 10:30 Time Submitted: 12/03/19 11:30 02171214.00 Volatile Organic Compounds by GC/MS BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 1.11,1,1,2-Tetrachloroethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.611,1,1-Trichloroethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.361,1,2,2-Tetrachloroethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.661,1,2-Trichloroethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.831,1-Dichloroethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.831,1-Dichloroethylene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.511,1-Dichloropropylene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 4.01,2,3-Trichlorobenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 1.41,2,3-Trichloropropane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 1.31,2,4-Trichlorobenzene 1200 *SM6200 B P9L01501005012/6/19 23:41 JLBug/L 5.41,2,4-Trimethylbenzene BRL *SM6200 B P9L0150102012/6/19 23:07 JLBug/L 1.71,2-Dibromo-3-chloropropane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.511,2-Dibromoethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.761,2-Dichlorobenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.661,2-Dichloroethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 1.11,2-Dichloropropane 160 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.761,3,5-Trimethylbenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.541,3-Dichlorobenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.431,3-Dichloropropane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.501,4-Dichlorobenzene BRL *SM6200 B P9L0150102012/6/19 23:07 JLBug/L 1.12,2-Dichloropropane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.662-Chlorotoluene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.504-Chlorotoluene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.894-Isopropyltoluene BRL *SM6200 B P9L01501010012/6/19 23:07 JLBug/L 3.1Acetone BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.48Benzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.57Bromobenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 1.4Bromochloromethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.62Bromodichloromethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.40Bromoform BRL *SM6200 B P9L0150101012/6/19 23:07 JLBug/L 1.8Bromomethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 1.1Carbon Tetrachloride BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.62Chlorobenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 2.2Chloroethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.76Chloroform BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.79Chloromethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.56cis-1,2-Dichloroethylene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.79cis-1,3-Dichloropropylene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.81Dibromochloromethane BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.65Dibromomethane BRL *SM6200 B P9L0150101012/6/19 23:07 JLBug/L 1.1Dichlorodifluoromethane BRL *SM6200 B P9L015010200012/6/19 23:07 JLBug/L 270Ethanol This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 9 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: MW-2 Prism Sample ID: 9120021-03 Prism Work Order: 9120021 Time Collected: 11/26/19 10:30 Time Submitted: 12/03/19 11:30 02171214.00 580 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.61Ethylbenzene BRL *SM6200 B P9L0150102012/6/19 23:07 JLBug/L 1.6Hexachlorobutadiene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.50Isopropyl Ether 150 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.54Isopropylbenzene (Cumene) 1200 *SM6200 B P9L0150101012/6/19 23:07 JLBug/L 1.2m,p-Xylenes BRL *SM6200 B P9L0150101012/6/19 23:07 JLBug/L 0.65Methyl Butyl Ketone (2-Hexanone) BRL *SM6200 B P9L0150105012/6/19 23:07 JLBug/L 2.4Methyl Ethyl Ketone (2-Butanone) BRL *SM6200 B P9L0150101012/6/19 23:07 JLBug/L 0.78Methyl Isobutyl Ketone BRL *SM6200 B P9L0150102012/6/19 23:07 JLBug/L 0.83Methylene Chloride BRL *SM6200 B P9L0150101012/6/19 23:07 JLBug/L 0.42Methyl-tert-Butyl Ether 300 *SM6200 B P9L0150101012/6/19 23:07 JLBug/L 1.9Naphthalene 44 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.76n-Butylbenzene 410 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.87n-Propylbenzene 360 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.44o-Xylene 27 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.76sec-Butylbenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.47Styrene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.88tert-Butylbenzene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.98Tetrachloroethylene 110 *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.44Toluene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.70trans-1,2-Dichloroethylene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 1.2trans-1,3-Dichloropropylene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.78Trichloroethylene BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.62Trichlorofluoromethane BRL *SM6200 B P9L0150105012/6/19 23:07 JLBug/L 0.60Vinyl acetate BRL *SM6200 B P9L0150105.0 12/6/19 23:07 JLBug/L 0.97Vinyl chloride 1600 *SM6200 B P9L0150101512/6/19 23:07 JLBug/L 1.5Xylenes, total Surrogate Recovery Control Limits 70-13099 %4-Bromofluorobenzene 70-130101 %Dibromofluoromethane 70-130101 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 10 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: MW-17 Prism Sample ID: 9120021-04 Prism Work Order: 9120021 Time Collected: 11/26/19 11:00 Time Submitted: 12/03/19 11:30 02171214.00 Volatile Organic Compounds by GC/MS BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 1.11,1,1,2-Tetrachloroethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.611,1,1-Trichloroethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.361,1,2,2-Tetrachloroethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.661,1,2-Trichloroethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.831,1-Dichloroethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.831,1-Dichloroethylene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.511,1-Dichloropropylene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 4.01,2,3-Trichlorobenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 1.41,2,3-Trichloropropane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 1.31,2,4-Trichlorobenzene 220 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.541,2,4-Trimethylbenzene BRL *SM6200 B P9L0150102012/7/19 0:15 JLBug/L 1.71,2-Dibromo-3-chloropropane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.511,2-Dibromoethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.761,2-Dichlorobenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.661,2-Dichloroethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 1.11,2-Dichloropropane 44 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.761,3,5-Trimethylbenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.541,3-Dichlorobenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.431,3-Dichloropropane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.501,4-Dichlorobenzene BRL *SM6200 B P9L0150102012/7/19 0:15 JLBug/L 1.12,2-Dichloropropane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.662-Chlorotoluene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.504-Chlorotoluene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.894-Isopropyltoluene BRL *SM6200 B P9L01501010012/7/19 0:15 JLBug/L 3.1Acetone BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.48Benzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.57Bromobenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 1.4Bromochloromethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.62Bromodichloromethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.40Bromoform BRL *SM6200 B P9L0150101012/7/19 0:15 JLBug/L 1.8Bromomethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 1.1Carbon Tetrachloride BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.62Chlorobenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 2.2Chloroethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.76Chloroform BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.79Chloromethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.56cis-1,2-Dichloroethylene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.79cis-1,3-Dichloropropylene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.81Dibromochloromethane BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.65Dibromomethane BRL *SM6200 B P9L0150101012/7/19 0:15 JLBug/L 1.1Dichlorodifluoromethane BRL *SM6200 B P9L015010200012/7/19 0:15 JLBug/L 270Ethanol This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 11 of 18 Laboratory Report 12/10/2019 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 115 Mackenan Dr. BUILDING 117 Project No.: Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Sample Matrix: Water Client Sample ID: MW-17 Prism Sample ID: 9120021-04 Prism Work Order: 9120021 Time Collected: 11/26/19 11:00 Time Submitted: 12/03/19 11:30 02171214.00 370 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.61Ethylbenzene BRL *SM6200 B P9L0150102012/7/19 0:15 JLBug/L 1.6Hexachlorobutadiene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.50Isopropyl Ether 230 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.54Isopropylbenzene (Cumene) 490 *SM6200 B P9L0150101012/7/19 0:15 JLBug/L 1.2m,p-Xylenes BRL *SM6200 B P9L0150101012/7/19 0:15 JLBug/L 0.65Methyl Butyl Ketone (2-Hexanone) BRL *SM6200 B P9L0150105012/7/19 0:15 JLBug/L 2.4Methyl Ethyl Ketone (2-Butanone) BRL *SM6200 B P9L0150101012/7/19 0:15 JLBug/L 0.78Methyl Isobutyl Ketone BRL *SM6200 B P9L0150102012/7/19 0:15 JLBug/L 0.83Methylene Chloride BRL *SM6200 B P9L0150101012/7/19 0:15 JLBug/L 0.42Methyl-tert-Butyl Ether 120 *SM6200 B P9L0150101012/7/19 0:15 JLBug/L 1.9Naphthalene 39 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.76n-Butylbenzene 500 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.87n-Propylbenzene 130 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.44o-Xylene 27 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.76sec-Butylbenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.47Styrene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.88tert-Butylbenzene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.98Tetrachloroethylene 150 *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.44Toluene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.70trans-1,2-Dichloroethylene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 1.2trans-1,3-Dichloropropylene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.78Trichloroethylene BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.62Trichlorofluoromethane BRL *SM6200 B P9L0150105012/7/19 0:15 JLBug/L 0.60Vinyl acetate BRL *SM6200 B P9L0150105.0 12/7/19 0:15 JLBug/L 0.97Vinyl chloride 620 *SM6200 B P9L0150101512/7/19 0:15 JLBug/L 1.5Xylenes, total Surrogate Recovery Control Limits 70-130103 %4-Bromofluorobenzene 70-13099 %Dibromofluoromethane 70-130100 %Toluene-d8 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 12 of 18 12/10/19 Level II QC Report 115 Mackenan Dr. BUILDING 117 Project No: 02171214.00 Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Prism Work Order: 9120021 Time Submitted: 12/3/2019 11:30:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0150 - SM6200 B Blank (P9L0150-BLK1)Prepared & Analyzed: 12/06/19 1,1,1,2-Tetrachloroethane ug/LBRL0.50 1,1,1-Trichloroethane ug/LBRL0.50 1,1,2,2-Tetrachloroethane ug/LBRL0.50 1,1,2-Trichloroethane ug/LBRL0.50 1,1-Dichloroethane ug/LBRL0.50 1,1-Dichloroethylene ug/LBRL0.50 1,1-Dichloropropylene ug/LBRL0.50 1,2,3-Trichlorobenzene ug/LBRL0.50 1,2,3-Trichloropropane ug/LBRL0.50 1,2,4-Trichlorobenzene ug/LBRL0.50 1,2,4-Trimethylbenzene ug/LBRL0.50 1,2-Dibromo-3-chloropropane ug/LBRL2.0 1,2-Dibromoethane ug/LBRL0.50 1,2-Dichlorobenzene ug/LBRL0.50 1,2-Dichloroethane ug/LBRL0.50 1,2-Dichloropropane ug/LBRL0.50 1,3,5-Trimethylbenzene ug/LBRL0.50 1,3-Dichlorobenzene ug/LBRL0.50 1,3-Dichloropropane ug/LBRL0.50 1,4-Dichlorobenzene ug/LBRL0.50 2,2-Dichloropropane ug/LBRL2.0 2-Chlorotoluene ug/LBRL0.50 4-Chlorotoluene ug/LBRL0.50 4-Isopropyltoluene ug/LBRL0.50 Acetone ug/LBRL10 Benzene ug/LBRL0.50 Bromobenzene ug/LBRL0.50 Bromochloromethane ug/LBRL0.50 Bromodichloromethane ug/LBRL0.50 Bromoform ug/LBRL0.50 Bromomethane ug/LBRL1.0 Carbon Tetrachloride ug/LBRL0.50 Chlorobenzene ug/LBRL0.50 Chloroethane ug/LBRL0.50 Chloroform ug/LBRL0.50 Chloromethane ug/LBRL0.50 cis-1,2-Dichloroethylene ug/LBRL0.50 cis-1,3-Dichloropropylene ug/LBRL0.50 Dibromochloromethane ug/LBRL0.50 Dibromomethane ug/LBRL0.50 Dichlorodifluoromethane ug/LBRL1.0 Ethanol ug/LBRL200 Ethylbenzene ug/LBRL0.50 Hexachlorobutadiene ug/LBRL2.0 Isopropyl Ether ug/LBRL0.50 Isopropylbenzene (Cumene)ug/LBRL0.50 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 13 of 18 12/10/19 Level II QC Report 115 Mackenan Dr. BUILDING 117 Project No: 02171214.00 Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Prism Work Order: 9120021 Time Submitted: 12/3/2019 11:30:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0150 - SM6200 B Blank (P9L0150-BLK1)Prepared & Analyzed: 12/06/19 m,p-Xylenes ug/LBRL1.0 Methyl Butyl Ketone (2-Hexanone)ug/LBRL1.0 Methyl Ethyl Ketone (2-Butanone)ug/LBRL5.0 Methyl Isobutyl Ketone ug/LBRL1.0 Methylene Chloride ug/LBRL2.0 Methyl-tert-Butyl Ether ug/LBRL1.0 Naphthalene ug/LBRL1.0 n-Butylbenzene ug/LBRL0.50 n-Propylbenzene ug/LBRL0.50 o-Xylene ug/LBRL0.50 sec-Butylbenzene ug/LBRL0.50 Styrene ug/LBRL0.50 tert-Butylbenzene ug/LBRL0.50 Tetrachloroethylene ug/LBRL0.50 Toluene ug/LBRL0.50 trans-1,2-Dichloroethylene ug/LBRL0.50 trans-1,3-Dichloropropylene ug/LBRL0.50 Trichloroethylene ug/LBRL0.50 Trichlorofluoromethane ug/LBRL0.50 Vinyl acetate ug/LBRL5.0 Vinyl chloride ug/LBRL0.50 Xylenes, total ug/LBRL1.5 ug/L 50.00 70-130Surrogate: 4-Bromofluorobenzene 10251.0 ug/L 50.00 70-130Surrogate: Dibromofluoromethane 10451.8 ug/L 50.00 70-130Surrogate: Toluene-d8 10150.3 LCS (P9L0150-BS1)Prepared & Analyzed: 12/06/19 1,1,1,2-Tetrachloroethane ug/L20.1 0.50 20.00 70-130100 1,1,1-Trichloroethane ug/L20.4 0.50 20.00 70-130102 1,1,2,2-Tetrachloroethane ug/L21.4 0.50 20.00 70-130107 1,1,2-Trichloroethane ug/L20.4 0.50 20.00 70-130102 1,1-Dichloroethane ug/L20.8 0.50 20.00 70-130104 1,1-Dichloroethylene ug/L20.4 0.50 20.00 70-130102 1,1-Dichloropropylene ug/L21.7 0.50 20.00 70-130108 1,2,3-Trichlorobenzene ug/L22.2 0.50 20.00 70-130111 1,2,3-Trichloropropane ug/L22.0 0.50 20.00 70-130110 1,2,4-Trichlorobenzene ug/L21.5 0.50 20.00 70-130107 1,2,4-Trimethylbenzene ug/L21.6 0.50 20.00 70-130108 1,2-Dibromo-3-chloropropane ug/L21.3 2.0 20.00 70-130106 1,2-Dibromoethane ug/L20.0 0.50 20.00 70-130100 1,2-Dichlorobenzene ug/L21.4 0.50 20.00 70-130107 1,2-Dichloroethane ug/L20.2 0.50 20.00 70-130101 1,2-Dichloropropane ug/L21.0 0.50 20.00 70-130105 1,3,5-Trimethylbenzene ug/L21.7 0.50 20.00 70-130109 1,3-Dichlorobenzene ug/L20.6 0.50 20.00 70-130103 1,3-Dichloropropane ug/L21.5 0.50 20.00 70-130107 1,4-Dichlorobenzene ug/L20.8 0.50 20.00 70-130104 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 14 of 18 12/10/19 Level II QC Report 115 Mackenan Dr. BUILDING 117 Project No: 02171214.00 Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Prism Work Order: 9120021 Time Submitted: 12/3/2019 11:30:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0150 - SM6200 B LCS (P9L0150-BS1)Prepared & Analyzed: 12/06/19 2,2-Dichloropropane ug/L20.2 2.0 20.00 70-130101 2-Chlorotoluene ug/L21.2 0.50 20.00 70-130106 4-Chlorotoluene ug/L21.3 0.50 20.00 70-130106 4-Isopropyltoluene ug/L22.9 0.50 20.00 70-130114 Acetone ug/L40.1 10 40.00 40-160100 Benzene ug/L21.2 0.50 20.00 70-130106 Bromobenzene ug/L21.5 0.50 20.00 70-130108 Bromochloromethane ug/L20.3 0.50 20.00 70-130101 Bromodichloromethane ug/L20.8 0.50 20.00 70-130104 Bromoform ug/L21.0 0.50 20.00 70-130105 Bromomethane ug/L19.6 1.0 20.00 60-14098 Carbon Tetrachloride ug/L20.7 0.50 20.00 70-130104 Chlorobenzene ug/L20.4 0.50 20.00 70-130102 Chloroethane ug/L19.4 0.50 20.00 60-14097 Chloroform ug/L20.2 0.50 20.00 70-130101 Chloromethane ug/L16.6 0.50 20.00 60-14083 cis-1,2-Dichloroethylene ug/L20.2 0.50 20.00 70-130101 cis-1,3-Dichloropropylene ug/L21.5 0.50 20.00 70-130108 Dibromochloromethane ug/L20.3 0.50 20.00 70-130101 Dibromomethane ug/L20.9 0.50 20.00 70-130105 Dichlorodifluoromethane ug/L17.5 1.0 20.00 60-14088 Ethanol ug/L486 200 500.0 60-14097 Ethylbenzene ug/L21.1 0.50 20.00 70-130106 Hexachlorobutadiene ug/L22.0 2.0 20.00 70-130110 Isopropyl Ether ug/L20.6 0.50 20.00 70-130103 Isopropylbenzene (Cumene)ug/L22.8 0.50 20.00 70-130114 m,p-Xylenes ug/L43.4 1.0 40.00 70-130108 Methyl Butyl Ketone (2-Hexanone)ug/L21.5 1.0 20.00 60-140108 Methyl Ethyl Ketone (2-Butanone)ug/L20.9 5.0 20.00 60-140104 Methyl Isobutyl Ketone ug/L21.2 1.0 20.00 60-140106 Methylene Chloride ug/L20.2 2.0 20.00 70-130101 Methyl-tert-Butyl Ether ug/L20.8 1.0 20.00 70-130104 Naphthalene ug/L21.5 1.0 20.00 70-130108 n-Butylbenzene ug/L22.5 0.50 20.00 70-130112 n-Propylbenzene ug/L21.7 0.50 20.00 70-130108 o-Xylene ug/L21.1 0.50 20.00 70-130106 sec-Butylbenzene ug/L22.4 0.50 20.00 70-130112 Styrene ug/L21.4 0.50 20.00 70-130107 tert-Butylbenzene ug/L22.8 0.50 20.00 70-130114 Tetrachloroethylene ug/L20.8 0.50 20.00 70-130104 Toluene ug/L21.0 0.50 20.00 70-130105 trans-1,2-Dichloroethylene ug/L19.8 0.50 20.00 70-13099 trans-1,3-Dichloropropylene ug/L21.8 0.50 20.00 70-130109 Trichloroethylene ug/L20.8 0.50 20.00 70-130104 Trichlorofluoromethane ug/L20.4 0.50 20.00 60-140102 Vinyl acetate ug/L21.0 5.0 20.00 60-140105 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 15 of 18 12/10/19 Level II QC Report 115 Mackenan Dr. BUILDING 117 Project No: 02171214.00 Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Prism Work Order: 9120021 Time Submitted: 12/3/2019 11:30:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0150 - SM6200 B LCS (P9L0150-BS1)Prepared & Analyzed: 12/06/19 Vinyl chloride ug/L20.2 0.50 20.00 60-140101 Xylenes, total ug/L64.5 1.5 60.00 70-130108 ug/L 50.00 70-130Surrogate: 4-Bromofluorobenzene 10150.5 ug/L 50.00 70-130Surrogate: Dibromofluoromethane 9849.1 ug/L 50.00 70-130Surrogate: Toluene-d8 9949.7 LCS Dup (P9L0150-BSD1)Prepared & Analyzed: 12/06/19 1,1,1,2-Tetrachloroethane ug/L20.4 0.50 20.00 2070-130102 2 1,1,1-Trichloroethane ug/L21.2 0.50 20.00 2070-130106 4 1,1,2,2-Tetrachloroethane ug/L21.4 0.50 20.00 2070-130107 0.2 1,1,2-Trichloroethane ug/L21.0 0.50 20.00 2070-130105 3 1,1-Dichloroethane ug/L21.1 0.50 20.00 2070-130105 1 1,1-Dichloroethylene ug/L21.8 0.50 20.00 2070-130109 7 1,1-Dichloropropylene ug/L22.2 0.50 20.00 2070-130111 2 1,2,3-Trichlorobenzene ug/L22.1 0.50 20.00 2070-130110 0.7 1,2,3-Trichloropropane ug/L22.0 0.50 20.00 2070-130110 0.05 1,2,4-Trichlorobenzene ug/L21.0 0.50 20.00 2070-130105 2 1,2,4-Trimethylbenzene ug/L22.3 0.50 20.00 2070-130112 3 1,2-Dibromo-3-chloropropane ug/L22.8 2.0 20.00 2070-130114 7 1,2-Dibromoethane ug/L20.1 0.50 20.00 2070-130101 0.4 1,2-Dichlorobenzene ug/L21.6 0.50 20.00 2070-130108 1 1,2-Dichloroethane ug/L19.9 0.50 20.00 2070-13099 2 1,2-Dichloropropane ug/L21.7 0.50 20.00 2070-130108 3 1,3,5-Trimethylbenzene ug/L22.5 0.50 20.00 2070-130113 4 1,3-Dichlorobenzene ug/L21.2 0.50 20.00 2070-130106 3 1,3-Dichloropropane ug/L21.3 0.50 20.00 2070-130106 0.8 1,4-Dichlorobenzene ug/L21.0 0.50 20.00 2070-130105 1 2,2-Dichloropropane ug/L21.1 2.0 20.00 2070-130105 4 2-Chlorotoluene ug/L21.3 0.50 20.00 2070-130106 0.5 4-Chlorotoluene ug/L21.5 0.50 20.00 2070-130107 0.8 4-Isopropyltoluene ug/L23.4 0.50 20.00 2070-130117 2 Acetone ug/L39.8 10 40.00 2040-160100 0.8 Benzene ug/L22.0 0.50 20.00 2070-130110 3 Bromobenzene ug/L21.7 0.50 20.00 2070-130108 0.6 Bromochloromethane ug/L21.2 0.50 20.00 2070-130106 5 Bromodichloromethane ug/L21.2 0.50 20.00 2070-130106 2 Bromoform ug/L21.8 0.50 20.00 2070-130109 3 Bromomethane ug/L20.0 1.0 20.00 2060-140100 2 Carbon Tetrachloride ug/L21.4 0.50 20.00 2070-130107 3 Chlorobenzene ug/L21.2 0.50 20.00 2070-130106 3 Chloroethane ug/L19.7 0.50 20.00 2060-14099 2 Chloroform ug/L21.5 0.50 20.00 2070-130108 6 Chloromethane ug/L17.2 0.50 20.00 2060-14086 3 cis-1,2-Dichloroethylene ug/L20.2 0.50 20.00 2070-130101 0 cis-1,3-Dichloropropylene ug/L21.8 0.50 20.00 2070-130109 1 Dibromochloromethane ug/L20.7 0.50 20.00 2070-130104 2 Dibromomethane ug/L21.7 0.50 20.00 2070-130108 3 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 16 of 18 12/10/19 Level II QC Report 115 Mackenan Dr. BUILDING 117 Project No: 02171214.00 Project: Barbers AmocoWithers & Ravenel Cary, NC 27511 Attn: Matt James Prism Work Order: 9120021 Time Submitted: 12/3/2019 11:30:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control Batch P9L0150 - SM6200 B LCS Dup (P9L0150-BSD1)Prepared & Analyzed: 12/06/19 Dichlorodifluoromethane ug/L17.8 1.0 20.00 2060-14089 1 Ethanol ug/L510 200 500.0 2060-140102 5 Ethylbenzene ug/L21.7 0.50 20.00 2070-130109 3 Hexachlorobutadiene ug/L22.5 2.0 20.00 2070-130112 2 Isopropyl Ether ug/L20.1 0.50 20.00 2070-130100 3 Isopropylbenzene (Cumene)ug/L23.2 0.50 20.00 2070-130116 1 m,p-Xylenes ug/L44.6 1.0 40.00 2070-130111 3 Methyl Butyl Ketone (2-Hexanone)ug/L22.5 1.0 20.00 2060-140112 5 Methyl Ethyl Ketone (2-Butanone)ug/L20.9 5.0 20.00 2060-140104 0 Methyl Isobutyl Ketone ug/L21.0 1.0 20.00 2060-140105 0.9 Methylene Chloride ug/L20.3 2.0 20.00 2070-130101 0.2 Methyl-tert-Butyl Ether ug/L21.6 1.0 20.00 2070-130108 4 Naphthalene ug/L21.9 1.0 20.00 2070-130109 2 n-Butylbenzene ug/L22.8 0.50 20.00 2070-130114 1 n-Propylbenzene ug/L22.1 0.50 20.00 2070-130110 2 o-Xylene ug/L21.7 0.50 20.00 2070-130108 3 sec-Butylbenzene ug/L23.2 0.50 20.00 2070-130116 3 Styrene ug/L22.6 0.50 20.00 2070-130113 5 tert-Butylbenzene ug/L23.2 0.50 20.00 2070-130116 2 Tetrachloroethylene ug/L22.3 0.50 20.00 2070-130111 7 Toluene ug/L21.6 0.50 20.00 2070-130108 3 trans-1,2-Dichloroethylene ug/L20.8 0.50 20.00 2070-130104 5 trans-1,3-Dichloropropylene ug/L21.5 0.50 20.00 2070-130108 1 Trichloroethylene ug/L21.3 0.50 20.00 2070-130106 2 Trichlorofluoromethane ug/L21.2 0.50 20.00 2060-140106 4 Vinyl acetate ug/L19.4 5.0 20.00 2060-14097 8 Vinyl chloride ug/L21.3 0.50 20.00 2060-140107 5 Xylenes, total ug/L66.2 1.5 60.00 2070-130110 3 ug/L 50.00 70-130Surrogate: 4-Bromofluorobenzene 10050.0 ug/L 50.00 70-130Surrogate: Dibromofluoromethane 9848.8 ug/L 50.00 70-130Surrogate: Toluene-d8 10050.2 Sample Extraction Data Prep Method: SM6200 B Lab Number Batch Date/TimeInitialFinal P9L01509120021-01 12/06/19 10:1410 10mL mL P9L01509120021-02 12/06/19 10:1410 10mL mL P9L01509120021-03 12/06/19 10:1410 10mL mL P9L01509120021-03 12/06/19 10:1410 10mL mL P9L01509120021-04 12/06/19 10:1410 10mL mL This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 17 of 18 Page 18 of 18 APPENDIX B Copy of Field Notes APPENDIX C Photographic Documentation PHOTO 1 SITE VIEW FROM NORTHWEST TO SOUTHEAST PHOTO 2 SITE VIEW TO SOUTHEAST PHOTO 3 SITE VIEW TO SOUTHWEST ALONG HIGHWAY 117 BUSINESS PHOTO 4 MW-1 (RIGHT, FOREGROUND) PHOTO 5 MW-2 (CENTER, FOREGROUND) PHOTO 6 MW-17 (FORMER PUMP ISLANDS EXTEND TO SOUTHWEST) PHOTO 7 WRMW-1 (CENTER, FOREGROUND) APPENDIX D General Standard Operating Procedures Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Soil Sampling, Soil Boring and Monitor Well Installation, Well Development Soil borings are installed utilizing a stainless-steel hand auger, direct-push hydraulic drill or auger rotary drill using either a macro core™ sampler, hollow stem augers, or air rotary roller cone bit. Soil borings are typically sampled at discrete intervals from the bucket of a clean stainless steel hand auger, direct push stainless steel sampler with acetate sleeve, or a split barrel sampler. When appropriate, soil samples may be collected from drill cuttings associated with the boring or well installation. Monitor wells are constructed within select soil borings of one, two, or four-inch inside diameter PVC casing and machine slotted screen in accordance with NCAC Title 15A, Subchapter 02C (Well Construction Standards, Criteria and Standards Applicable to Water Supply and Certain Other Wells). Clean-washed “#2 Torpedo Sand” is typically utilized to fill the boring annulus surrounding the well screen, extending to a minimum of 1-foot above the well screen. A minimum 1-foot thick bentonite clay seal is emplaced above the sand pack and hydrated. Neat cement grout is placed in the remaining annulus space from the upper portion of the bentonite seal to within 1-foot of surface grade. In coastal plain areas where shallow groundwater is encountered, a variance to construction standards may be employed to ensure the upper portion of the well screen intersects the upper aquifer surface. Wellheads may be completed with either concrete-set flush mounted traffic-bearing steel skirted manholes with bolt down covers or steel above-ground “stick-up” well protectors set in a concrete pad. The monitoring wells are secured with locking caps. Temporary wells or piezometers may be completed with the PVC riser cut at or above grade, and are abandoned within 24-hours of their installation. Wells may be developed using a bailer, electric submersible pump, pneumatic pump, or peristaltic pump, dependent upon site conditions. When wells are developed by the driller, they may be developed with any of the methods outlined above, in addition to air or water injection. Soil boring logs and well construction details are typically prepared for presentation in a report appendix. Borings completed in bedrock may be drilled using air rotary, coring, or sonic drilling methods. Groundwater Depth to Water Measurements Groundwater level measurements are typically obtained using an electronic water level indicator which registers a tone and/or illuminated light when the probe contacts groundwater. Depth to groundwater measurements are obtained by lowering the probe attached to a cable usually marked in 0.01 foot intervals into the well until the probe of the meter intersects the water surface. The measurement from the top of the riser pipe or top of casing (TOC) to the water level is recorded to the nearest 0.01 foot. The electronic water level indicator probe and exposed probe cable is decontaminated between measurement locations. Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Free Product Level Measurements Light Non-Aqueous Phase Liquid (LNAPL) or “free product” present on the water table is measured using an electronic oil/water interface probe. The interface probe has both an audible and illuminating light that indicate when a liquid level is encountered. The oil/water interface probe registers a solid tone and solidly lit light when LNAPL petroleum product is encountered and a beeping tone flashing light when groundwater is encountered. Depth to LNAPL measurements are obtained by lowering the probe attached to a cable marked in 0.01 foot intervals into the well until the probe of the meter intersects the product or groundwater. The measurements from the top of the riser pipe or TOC to the liquid level are recorded to the nearest 0.01 foot. The thickness of LNAPL is calculated by subtracting the depth to LNAPL measurement from the depth to groundwater measurement. The electronic interface probe is decontaminated between measurement locations. Soil Sampling and Field Screening Soil sampling is performed in general accordance with ASTM: 1586-84 where applicable. Sampling procedures are followed to protect the chemical integrity of the soil samples and minimize the potential for cross contamination between sample locations, including discarding of the exterior of the sample which contacts the auger bucket, acetate sleeve, or split barrel sampler, the use of stainless steel sampling equipment, and the thorough decontamination of sampling apparatus prior to use and between sample locations. Soil samples retained as a part of excavation or other intrusive “digging” activities may be collected from the bucket of excavation equipment or using a hand shovel, if appropriate. Care to collect soil samples from excavation equipment includes retrieving native soil from material that has not made contact with the excavating equipment. Samples are collected in sealable bags or by directly filling sample containers as described above. Sampling is performed using new, disposable nitrile gloves for each sample location to ensure sample integrity and minimize the potential for cross contamination or field personnel exposure to contaminants. Sampling equipment such as hand auger extensions and buckets, direct push samplers, split spoons or shovels, are decontaminated prior to their use in the collection of samples. Samples are placed within laboratory grade sample containers provided by the laboratory to which the samples are submitted, labeled, sealed, and placed in an ice filled cooler. An aliquot of the sample is typically placed in a clean sealable bag and allowed to reach ambient air temperature for future screening of volatile vapor content with a photoionization detector (PID), flame-ionization detector (FID) or other portable screening device. Screening of samples with a PID, FID or other field screening device is performed in accordance with device manufacturer specifications for screening, following calibration of the instrument based on manufacturer recommended procedures. Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Groundwater Sampling Groundwater samples are generally collected using one of three standard methods – through the use of a dedicated, disposable bailer, a peristaltic pump or submersible electric pump. When sampling with a bailer, a minimum of three well volumes of groundwater are extracted from the well as a means of purging, unless the well is purged to a “dry” state prior to the removal of three volumes of water. Prior to collection of the groundwater sample with the bailer, the water level is allowed to recover to within 80% of the original level measured prior to purging. When sampling with a peristaltic or submersible electric pump, polyethylene (PE) tubing (or equivalent) is emplaced into the screened section of the monitoring well, and the pump is used to extract water through the tubing. When using the either of these methods, general water quality measurements including but not limited to pH, temperature, dissolved oxygen (DO), oxygen reductive potential (ORP), specific conductivity and turbidity may be used as methods for determining when an adequate purge of the well has been conducted. When water quality parameters are measured, the resulting data are included in well purge forms or field notes specific to each site and sampling point. Following the purging of three well volumes of groundwater (in the case of the bailed well) or stability of monitored measurements (in the case of the peristaltic or submersible electric pump), the groundwater sample(s) are introduced directly into sample containers provided by the laboratory to which samples are ultimately submitted for analysis. Any samples requiring chemical preservation are contained in pre- preserved container(s) provided by the laboratory. Sampling is performed using new, disposable nitrile gloves for each sample location to ensure sample integrity and minimize the potential for cross contamination of samples or field personnel exposure to contaminants. Water Supply Well Sampling Sampling of water supply wells is accomplished through the collection of a representative sample from an in-line water tap or other point accessible for sampling. Where possible, the sample is collected from a point prior to any filtration or point of entry (POE) system which might be installed on a well. In some cases, samples will be collected from both pre and post-POE locations. Prior to the collection of samples through an in-place sampling point, the tap or sampling port is cleaned with an Alconox® and deionized water solution, rinsed with deionized water, and again with an isopropyl alcohol (IPA) rinse. In the case of active supply wells (e.g., a well with a useable well pump with an active power supply), the well pump is energized and allowed to run for a minimum of ten (10) minutes time, after which a sample is contained in laboratory grade sample containers as described in the previous section. Water quality parameters may be (but are not necessarily) measured in association with the well purging. Supply wells without active power supplies are not generally sampled, as the well seal cannot be compromised by individuals not certified as a well contractor. However, in the case of a well with no power supply or pump installed, samples could be obtained through the use of a bailer, peristaltic pump or electric submersible pump. Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Decontamination Procedures Decontamination procedures employed in the performance of field activities will vary dependent upon the method(s) of sampling performed at any site, but will generally include the following: • Remove excess soil/sludge from any sampling equipment as needed, • Wash and scrub the equipment with a phosphate-free detergent such as Alconox® or Liquinox® in a contaminant-free tap water solution. Use a brush to remove particulate matter and surface films as necessary, • Rinse thoroughly with tap water, • Rinse thoroughly with analyte-free water (deionized water),  Rinse thoroughly with isopropyl alcohol, • Allow the equipment to air dry, • Prevent inadvertent contamination during storage and transport (accomplished through storage of equipment in foil or plastic bags/sheeting). In the case of disposable bailers and tubing utilized for the purging and sampling of wells, these items may be decontaminated prior to their disposal. In general, no decontamination of these items is necessary prior to their use in sampling.