Loading...
HomeMy WebLinkAboutWS-3633_11517_CA_MRP_20230501  WithersRavenel Our People. Your Success.    115 MacKenan Drive | Cary, NC 27511  t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F‐1479  Asheville | Cary | Charlotte | Greensboro | Lumberton | Pittsboro | Raleigh | Southern Pines | Wilmington          GROUNDWATER MONITORING REPORT    Humble’s Country Store  NCDEQ Incident #11517  UST # WS‐3633   1383 Lees Chapel Road  Greensboro, Guilford County, North Carolina  WithersRavenel Project No. 23‐0307‐H                                            Prepared for:  State of North Carolina  Department of Environmental Quality  Division of Waste Management   Underground Storage Tank Section  Federal & State Lead Program  1646 Mail Service Center  Raleigh, North Carolina 27699‐1646    Prepared by: WithersRavenel 115 MacKenan Drive  Cary, North Carolina 27511  North Carolina Firm License No. F‐1479  May 1, 2023 .    WithersRavenel Our People. Your Success.        115 MacKenan Drive | Cary, NC 27511  t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F‐1479  Asheville | Cary | Charlotte | Greensboro | Lumberton | Pittsboro | Raleigh | Southern Pines | Wilmington    May 1, 2023    State of North Carolina  Department of Environmental Quality  Federal & State Lead Program  Division of Waste Management‐Underground Storage Tank Section  1646 Mail Service Center  Raleigh, North Carolina 27699‐1646    Attn:  Ms. Sharon Ghiold    Re:  Groundwater Monitoring Report   Humble’s Country Store  1383 Lees Chapel Road  Greensboro, Guilford County, North Carolina  Groundwater Incident Number: 11517  UST Number: WS‐3633  WR Project Number:  23‐0307‐H    Ms. Ghiold:  WithersRavenel, Inc. (WR) has completed this Groundwater Monitoring Report to document a  groundwater sampling event completed at the site in association with task authorization TA‐01,  for the above referenced site, approved by the Federal & State Lead Program on March 1, 2023.     WR appreciates the opportunity to be of service to the Federal & State Lead Program. Should you  have any questions regarding the attached, please contact us at (919) 469‐3340.    Cordially,  WithersRavenel                     Cory Nobles      Elizabeth A. Allyn, P.G.  Environmental Geologist II    Environmental Project Geologist II WithersRavenel Our People. Your Success.      Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  i      TABLE OF CONTENTS     SECTION A: SITE INFORMATION ..................................................................................................................... 1  SECTION B. EXECUTIVE SUMMARY ................................................................................................................ 3  SECTION C. SITE HISTORY AND CHARACTERIZATION ............................................................................ 5  SECTION D. GROUNDWATER SAMPLING – MARCH 2023 .................................................................. 10  SECTION E. CONCLUSIONS AND RECOMMENDATIONS ..................................................................... 11    FIGURES   Figure 1 General Location Map  Figure 2 Site Map  Figure 3 Receptor Locations  Figure 4 Groundwater Hydraulic Gradient Map – March 2023  Figure 5 Dissolved Benzene Isoconcentration Map – March 2023  Figure 6 Dissolved MTBE Isoconcentration Map – March 2023  Figure 7 Groundwater Analytical Results Map – March 2023     TABLES   Table B‐1 Site History: UST/AST System & Other Release Information  Table B‐4 Summary of Groundwater Analytical Results  Table B‐5A Public & Private Water Supply Well Information  Table B‐7 Monitoring Well Construction and Groundwater Elevation Information  Table B‐9 Current & Historical Groundwater Elevations & LNAPL Thickness     APPENDICES   Appendix A Field Notes and Photographic Record  Appendix B Laboratory Analytical Report  Appendix C WR’s Standard Operating Procedures    WithersRavenel Our People. Your Success.      Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  1    SECTION A: SITE INFORMATION   1. Site Identification  Date of Report:  May 1, 2023  Facility I.D.: 00‐0‐0000010655  Incident No.: 11517  UST No.: WS‐3633  Site Risk: High  Site Rank: H198D  Land Use Category: Residential  Site Name: Humble’s Country Store  Site Location: 1383 Lees Chapel Road  Nearest City/Town: Greensboro  County: Guilford  Description of Geographical Data Point:  Center of Reported Source Area  Location Method:  Google Earth™  Latitude: N 35° 48' 26.06"  Longitude: W ‐78° 27' 10.83"  2. Contact Information  UST Operator: Chun T. Yi  Address: Unknown  Phone: Unknown     Property Owner: Pradeep Dhakal  Address: 1448 Cantwell Court, High Point, NC 27265  Phone: Unknown     Property Occupant: Chapel Mart  Address: 1383 Lees Chapel Road, Greensboro, NC 27455  Phone: 336‐938‐0093     Consultant/Contractor: WithersRavenel, Inc.  Address:  115 MacKenan Drive, Cary, NC 27511  Phone:  919‐469‐3340     Analytical Laboratory: Waypoint Analytical, Inc.   State Certification Number: ENV402  Address: 449 Springbrook Rd., Charlotte, NC 28217  Phone: 704‐529‐6364     WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  3     SECTION B. EXECUTIVE SUMMARY    1. Summary of Activities Associated with Current TA    WithersRavenel, Inc. (WR) conducted a groundwater sampling event at the Humble’s Country  Store site located at 1383 Lees Chapel Road in Greensboro, Guilford County, North Carolina in  association with task authorization TA‐01 under North Carolina Department of Environmental  Quality (NCDEQ) Contract #N70522‐C.     2. Soil, Groundwater and LNAPL 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 at the site, several petroleum  compounds are present at levels exceeding their Soil to Water Maximum Soil Contaminant  Concentrations (MSCCs) beneath the former UST basin and pump island. Additional soil  assessment activities confirmed the presence of total petroleum hydrocarbons (TPHs) at a depth  of 20 feet in the vicinity of the former pump island.  The historical presence of light non‐aqueous  phase liquid (LNAPL) on the site infers that soils onsite likely contain elevated concentrations of  petroleum compounds.       Groundwater   Analytical data for groundwater samples obtained from site monitoring wells in March 2023  analyzed by SM6200B indicated the presence of one or more target petroleum compounds in  samples obtained from monitoring wells MW‐1, MW‐2R, MW‐5, and recovery well RW‐1 at  concentrations in excess of the NCAC 2L. 0202 Groundwater Quality Standards (2L Standards).  Benzene was reported in the groundwater sample obtained from monitoring well MW‐1 above  the Gross Contaminant Level (GCL).   The greatest concentrations of contaminants were noted in the vicinity of monitoring well MW‐1  and recovery well RW‐1, both of which have historically contained LNAPL. The extent of  groundwater contamination at the site has not been defined to the west, south, or southeast of  the source area.   Based on groundwater elevation measurements from this monitoring event, groundwater flow  across the site appears to trend to the southeast.  Previous monitoring events have indicated  groundwater flow to the south‐southeast.      Liquid Non‐Aqueous Phase Liquid  LNAPL has historically been measured in MW‐1 at thicknesses ranging from 0.35 to 2.45 feet and  in RW‐1 with thicknesses ranging from 0.16 to 1.85 feet.  LNAPL was not measured during the  March 2023 monitoring event.     WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  4     3.       Receptor Information    A receptor survey update was performed by WR at the property in December 2014.  Results of  the receptor survey included the following:   Nine (9) private water supply wells have been identified within a 1,000 ft radius of the  release area on the site.   Municipal water provided by the City of Greensboro is available to the majority of the  surrounding vicinity.    No surface water bodies were identified within 500 feet of the release area on the site.      Based on field observations and information available to WR at the time of this report, as many as  five (5) of the identified water supply wells (WSW‐2, WSW‐3, WSW‐4, WSW‐5 and WSW‐11) are  utilized as potable water supplies.  Water supply wells WSW‐7 is located on a property currently  connected to municipal water and utilized for secondary non‐potable purposes such as irrigation  and washing cars.  Water supply well WSW‐8 is believed to have been abandoned or demolished  as a part of the construction of the Piedmont Classical High School.  Water supply wells WSW‐9  and WSW‐10 are also located on properties currently connected to municipal water and are  currently not utilized. It should be noted these water supply wells have not been properly  abandoned.  Water supply well WSW‐1, formerly located on the subject site, was abandoned in  April 2004. Information regarding the use/condition of the above water supply wells was  determined through field observations, property owner interviews, and communications with the  City of Greensboro Water Resource Department which confirmed that properties containing  water supply wells WSW‐2, WSW‐3, WSW‐4, WSW‐5 and WSW‐11 do not have open accounts  with the Water Resource Department, nor does a municipal water line run within the right of way  for Lorraine Road (location of WSW‐5 and WSW‐11).     The site is not located within the Coastal Plain Physiographic Region of North Carolina.  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 0.5 mile of  the source area at the site.      4. Remediation Activities    Remedial activities conducted on the site have been limited to the closure of two (2) 1,000‐gallon  (gal) gasoline USTs in December 1993, the performance of a 96‐hour Mobile Multi‐Phase  Extraction (MMPE) event in September 2004 and the completion of a surfactant injection (May  2018) and associated MMPE event (June 2018), and a 96‐hour MMPE event was performed in  March 2022.     5. Recommendations    Based on the results of assessment and monitoring activities conducted at the site in association  with this TA, WR recommends the following:   Continued groundwater monitoring at the site.   Continued monitoring of water supply well WSW‐2.  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  5      Connect the properties containing water supply wells WSW‐2, WSW‐3, and WSW‐4 to  municipal water, based on owner approvals for their connection, followed by abandonment  of the water supply wells on the properties.   If funding is available, conduct a Remedial Design Characterization to further characterize  impacts to soil and groundwater at the site.    SECTION C. SITE HISTORY AND CHARACTERIZATION    The following information summarizes the site’s history and characterization.      1. UST Information  Two 1,000‐gallon gasoline USTs were permanently closed by removal in December 1993.  During  removal, it was noted that one of the two USTs was very corroded with small holes present.  Two  (2) soil samples were collected from the bottom of the UST basin, one (1) from beneath the pump  island, and one (1) along the supply line.  Analytical data for soil samples collected from beneath  the former USTs and beneath the pump island indicated the presence of gasoline range organics  (GRO) as TPH at levels exceeding the NCDEQ Action Level for TPH GRO.      WR is not aware of any above‐ground storage tanks (ASTs) currently or formerly located on the  subject site.  Table B‐1 includes information regarding the USTs reportedly formerly located 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 including:     December 1993 – Bain, Palmer & Associates, Inc. supervised the removal of two (2) gasoline  USTs from the southeastern portion of the site. Analytical results for soil samples obtained in  association with the closures indicated concentrations of TPH GRO ranging from 59 to 1,300  ppm, which is above the NCDEQ Action Level for GRO, in samples collected from the base of  the excavation and beneath the former pump island.  During UST removal activities,  approximately 100 cubic yards of soil was excavated and stockpiled on site.    August 2003 – Geological Resources, Inc. (GRI) completed assessment activities as part of a  Phase I Limited Site Assessment. Two (2) soil samples were collected and submitted for  laboratory analysis of Volatile Organic Compounds (VOCs) by Method 8260B. Analytical  results indicated that the sample collected from soil boring SB‐1, advanced to a depth of 10  feet in the former UST basin, contained benzene at concentrations that exceeded Soil to Water  MSCCs. BTEX constituents and several other petroleum associated compounds were detected  above Soil to Water MSCCs in the soil sample collected from boring MW‐1 at a depth of 25  feet below ground surface (bgs). Following soil sampling activities, boring MW‐1 was  converted to a Type II groundwater monitoring well. Groundwater samples were collected  from MW‐1 and the onsite water supply well (WSW‐1) and submitted for analysis. Analytical  results indicated that concentrations of benzene and 1,2‐dibromoethane (EDB) were detected  above GCLs in MW‐1. In addition, BTEX constituents, MTBE, 1,2‐dichloroethane, EDB, IPE,  and naphthalene were detected above the 2L Standards in MW‐1. No detectable  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  6     concentrations of requested method constituents were reported in the sample collected from  water supply well WSW‐1. In addition to the sampling activities, a receptor survey was  performed in the vicinity surrounding the subject site. Although a public water supply is  available to the area, eight (8) water supply wells, including the onsite well, were identified  within 1,500 feet of the release area. A surface water feature, Jordan Branch, classified as a  Class C water, was identified as being located approximately 350 feet from the source area.    June 2004 – GRI advanced a total of six (6) soil borings in the area of the former dispenser  island.  Soil samples collected from a depth of 20 feet bgs from each boring were analyzed for  TPH GRO. Analytical results indicated that TPHs were detected above regulatory limits in all  samples. Type II monitoring wells MW‐2 and MW‐3 were installed, developed, and sampled  for halogenated and aromatic volatiles by Methods 601/602. Water supply wells WSW‐2 and  WSW‐8 were also sampled. Analytical results indicated that petroleum compounds were  detected above 2L Standards in MW‐2. No compounds exceeded the 2L Standards in MW‐ 3.  No compounds were detected above 2L Standards in the water supply well samples with  the exception of chloroform detected in the sample collected from water supply well WSW‐8.     September 2004 – GRI supervised a 96‐hour MMPE event at the site conducted by Advanced  Environmental Services, Inc. (Advanced) where approximately 1,123 gallons of liquid was  removed from MW‐1, including approximately 31 gallons of LNAPL. Mass removal calculations  indicated that an additional 4,390.32 pounds, or 713.64 gallons of vapor phase hydrocarbons,  were also removed. Following the MMPE event, groundwater samples were collected from  MW‐2 and MW‐3 and water supply wells WSW‐2 and WSW‐8 for analysis of halogenated  and aromatic volatiles by Methods 601/602. MW‐1 was not sampled due to the presence of  LNAPL (0.01 feet). Analytical results indicated that several compounds were detected above  2L Standards in MW‐2. Concentrations of benzene and naphthalene were detected above 2L  Standards in MW‐3. Naphthalene was also detected above the 2L Standard in water supply  well WSW‐2.   January 2005 – GRI installed one (1) Type II monitoring well (MW‐4) offsite on the eastern  adjacent property. MW‐4 was then sampled for laboratory analysis of VOCs by Method 8260.  Analytical results indicated petroleum compounds were detected above 2L Standards.    November 2005 – GRI collected groundwater samples from MW‐2, MW‐3, and MW‐4 as well  as water supply wells WSW‐2, WSW‐7, and WSW‐8 for laboratory analysis. MW‐1 was not  sampled due to the presence of LNAPL (1.48 feet). Analytical results indicated that  concentrations of one or more compounds exceeded 2L Standards were detected in the  groundwater samples collected from MW‐2, MW‐3, and MW‐4. Concentrations of  naphthalene and/or toluene were detected in groundwater samples collected from water  supply wells WSW‐2 and WSW‐7; however, these concentrations did not exceed 2L  Standards. No constituents were detected in the sample collected from water supply well  WSW‐8.    July 2006 ‐ GRI collected groundwater samples from MW‐2, MW‐3, and MW‐4 as well as  water supply wells WSW‐2 and WSW‐8 for laboratory analysis. MW‐1 was not sampled due  to the presence of LNAPL (1.80 feet). Analytical results indicated petroleum compounds that  exceeded 2L Standards were reported in the groundwater samples collected from MW‐2 and  MW‐4. Concentrations of 1,2‐dichloroethane and naphthalene exceeded the 2L Standards in  water supply well WSW‐2. Toluene was detected above method detection limits but below 2L  Standards in WSW‐2 and WSW‐8.  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  7      November 2006 ‐ GRI collected groundwater samples from MW‐2, MW‐3, and MW‐4 as well  as water supply wells WSW‐2 and WSW‐8 for laboratory analysis. MW‐1 was not sampled  due to the presence of LNAPL (1.77 feet). Analytical results indicated petroleum compounds  exceeding the 2L Standards were reported in the groundwater samples collected from MW‐2  and MW‐4. No petroleum related constituents were detected in either water supply well  sample above method reporting limits.    November 2007 – GRI collected groundwater samples from MW‐2 and MW‐4 as well as water  supply well WSW‐8. MW‐1 was not sampled due to the presence of LNAPL (1.51 feet). MW‐ 3 was not sampled because it was covered by a dumpster and not accessible. Analytical results  indicated petroleum compounds exceeding the 2L Standards were reported in the  groundwater samples collected from MW‐2 and MW‐4. Toluene was detected above  laboratory reporting limits but below the 2L Standard in the sample collected from water  supply well WSW‐8.    January 2008 – GRI completed an updated receptor survey for the subject site and  surrounding vicinity. Results of the receptor survey indicated that eight (8) waters supply wells  were identified within 1,000 feet of the source area. Two (2) water supply wells, WSW‐2 and  WSW‐4 were confirmed to be used for potable drinking water. Two (2) water supply wells,  WSW‐7 and WSW‐8 were confirmed to be used for secondary purposes (irrigation) only.  Water supply wells WSW‐9 and WSW‐10 were recorded as inactive and use of WSW‐3 and  WSW‐5 were unknown.   January 2011 – Terraquest Environmental Consultants, P.C. (Terraquest) collected  groundwater samples from MW‐4 and water supply wells WSW‐2 and WSW‐4 for laboratory  analysis of VOCs by Method 6200B.  MW‐1, MW‐2, and MW‐3 were dry at the time of the  sample event and therefore not sampled. Analytical results for MW‐4 indicated petroleum  compounds exceeding the 2L Standards. No constituents were detected above laboratory  reporting limits in the samples collected from the water supply wells.    May 2012 – Terraquest collected groundwater samples from MW‐4 and water supply wells  WSW‐2 and WSW‐4 for laboratory analysis of VOCs by Method 6200B. MW‐1 was not  sampled due to the presence of LNAPL (1.51 feet). MW‐2 and MW‐3 were dry at the time of  the sampling event and therefore not sampled. Analytical results indicated several VOC  concentrations above their 2L Standards in MW‐4. No constituents were detected above  laboratory reporting limits in the samples collected from the water supply wells.   December 2014 – WR performed a groundwater sampling event at the facility.  MW‐1 was  not sampled due to the presence of LNAPL. MW‐2 was not sampled because it was dry at the  time of the sampling event and MW‐3 was not sampled because it could not be accessed.  Analytical data for the groundwater sample collected from MW‐4 indicated concentrations of  benzene and naphthalene above the 2L Standards. No compounds were detected at  concentrations that exceeded GCLs.     August 2015 – WR supervised the installation of replacement monitoring well MW‐2R, the  installation of monitoring well MW‐5 and recovery well RW‐1, followed by the gauging,  purging and sampling of MW‐2R, MW‐4 and MW‐5, and the surveying of top of casing (TOC)  elevations for each newly installed well.  WR also obtained agreements with property owners  of supply wells WSW‐2, WSW‐3, WSW‐4, and WSW‐5 to allow for the installation of  municipal water service to each property.  Analytical data for groundwater samples obtained  from site monitoring wells in August 2015 indicated the presence of one or more target  petroleum compounds in MW‐2R, MW‐4, and MW‐5 at concentrations above the 2L  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  8     Standards.  MTBE was reported in the sample obtained from MW‐5 at a concentration above  the GCL.  MW‐1 was not sampled as it was dry, while MW‐3 could not be located by WR  personnel.  RW‐1 contained 0.16 ft of LNAPL and was not sampled.     February 2017 – WR placed New Pig® Rigid Monitoring Well Socks in MW‐5 and recovery  well RW‐1, purged and sampled MW‐5 and purged and sampled water supply well WSW‐2.   Data for the sample obtained from MW‐5 showed benzene and MTBE concentrations above  the 2L Standards.  Data for the sample obtained from water supply well WSW‐2 did not show  targeted compounds at concentrations exceeding the laboratory method detection limit for  SM6200B.     January 2018 – WR completed an Underground Injection Control (UIC) Permit for a surfactant  injection and submitted the permit application to the NCDEQ Division of Water Quality UIC  Permits Group.     May‐June 2018 – WR completed a surfactant injection at the facility followed by a MMPE  event focused on the depletion of LNAPL present on groundwater at the location.  After having  measured LNAPL levels in MW‐1, MW‐5 and recovery well RW‐1, WR completed the injection  of approximately 1,200 gallons of water with 2% EnviroClean surfactant.  These materials were  injected into six points installed with a GeoProbe® tooling.  Six days following the injection  event, Advanced mobilized to the subject property to complete a Surfactant Enhanced MMPE  event.  At the completion of the 96‐hour event, 4,440 gallons of product/water/surfactant mix  had been recovered and approximately 1,455.80 pounds or 236.64 gallons of VOCs were  removed as vapor.  No LNAPL was measured in any site monitoring wells following the MMPE  event.  Field effluent VOC vapor readings registered the maximum meter value of 100,000  ppm throughout the event.       August 2019 – WR completed a groundwater monitoring event at the site which included the  purging and sampling of MW‐1, MW‐2R, MW‐3, MW‐5, and RW‐1. MW‐4 was unable to be  located and presumed destroyed due to the construction of Piedmont Classical High School.  One or more compounds targeted by SM6200B were reported at levels exceeding their  respective 2L Standards in wells MW‐1, MW‐2R, MW‐5 and RW‐1. Benzene was reported at  concentrations exceeding the GCL in MW‐1 and RW‐1. MTBE was reported at a concentration  exceeding the GCL in MW‐1.   March 2020 – WR supervised the installation of replacement monitoring well MW‐4R. After  the monitoring well installation, WR completed a groundwater monitoring event at the site  which included the purging and sampling of MW‐1, MW‐2R, MW‐4R, MW‐5, and RW‐1. One  or more petroleum compounds were reported at levels exceeding the 2L Standards in wells  MW‐1, MW‐2R, MW‐4R, MW‐5 and RW‐1. Benzene was reported in the samples obtained  from MW‐1 and recovery well RW‐1 at concentrations above the GCL.  MTBE was also  reported in MW‐1 at a concentration exceeding the GCL.     April 2021 – WR conducted a monitoring and water supply well sampling event. Analytical  data indicated the presence of one or more target petroleum compounds in samples obtained  from MW‐1, MW‐2R, MW‐5 and recovery well RW‐1 at concentrations above the 2L  Standards. Benzene was reported in the groundwater samples obtained from MW‐1 and  recovery well RW‐1 at concentrations above the GCL.  MTBE was also reported in the  groundwater sample obtained from MW‐1 and MW‐5 and recovery well RW‐1 at  concentrations exceeding the GCL.     May 2022 – March 14 through 18, 2022, WR contracted Advanced to complete a 96‐hour  MMPE event on MW‐1, MW‐5, and RW‐1 Approximately 2,640 gallons of VOC‐impacted  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  9     water was recovered and transported offsite for disposal. Based on mass removal calculations,  240.99 pounds of VOCs or 39.17 gallons of VOCs were removed as vapor during the event.  Groundwater sampling was conducted in April 2022. Benzene was reported in the  groundwater samples obtained from MW‐1 and recovery well RW‐1 at concentrations in  excess of the GCL.  MTBE was also reported in the groundwater sample obtained from MW‐ 1 and MW‐5 and recovery well RW‐1 at concentrations exceeding the GCL.  Analytical data  indicated the presence of one or more target petroleum compounds in samples obtained from  MW‐1, MW‐2R, MW‐5 and recovery well RW‐1 at concentrations in excess of the 2L  Standards.     3.  Site Characteristics  The property is located at 1383 Lee’s Chapel Road in a residential/commercial area of Greensboro,  Guilford County, North Carolina (Figure 1).  The site includes a single‐story slab‐on‐grade brick  building that currently operates as a convenience store.  No fuels are currently sold as a part of  operations at the facility.  Surface coverings noted on the site include asphalt, gravel parking areas  along the eastern and southern portions of the site with maintained grass covering the western  portion of the site.  Site features, the former UST area, and monitoring well locations are depicted  on Figure 2.  The Guilford County, NC Tax Department identifies the property comprising the site  as parcel # 7877006973, including 0.42 acres of land.  The site is currently owned by Pradheep  Dhakal.      4.       Information on Receptors/Potential Receptors  A receptor survey update was performed by WR at the property in December 2014.  Results of  the receptor survey included the following:   Nine (9) private water supply wells have been identified within a 1,000 ft radius of the  release area on the site.   Municipal water provided by the City of Greensboro is available to much of the  surrounding vicinity.    No surface water bodies were identified within 500 feet of the release area on the site.      Based on field observations and information available to WR at the time of this report, as many as  five (5) of the identified water supply wells (WSW‐2, WSW‐3, WSW‐4, WSW‐5 and WSW‐11) are  utilized as potable water supplies.  Water supply wells WSW‐7 is located on a property currently  connected to municipal water and utilized for secondary non‐potable purposes such as irrigation  and washing cars. Water supply well WSW‐8 is believed to have been abandoned or demolished  as a part of the construction of the Piedmont Classical High School.  Water supply wells WSW‐9  and WSW‐10 are also located on properties currently connected to municipal water and are  currently not utilized. It should be noted these water supply wells have not been properly  abandoned.  Water supply well WSW‐1, formerly located on the subject site, was abandoned in  April 2004. Information regarding the use/condition of the above water supply wells was  determined through field observations, property owner interviews, and communications with the  City of Greensboro Water Resource Department which confirmed that properties containing  water supply wells WSW‐2, WSW‐3, WSW‐4, WSW‐5 and WSW‐11 do not have open accounts  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  10     with the Water Resource Department, nor does a municipal water line run within the right of way  for Lorraine Road (location of WSW‐5 and WSW‐11).     The site is not located within the Coastal Plain Physiographic Region of North Carolina.  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 0.5 mile of  the source area at the site.      As select properties within 1,000 feet of the source area rely on potable supply wells as their sole  means of water supply and groundwater impact exceeds GCL concentrations at the facility, the  site risk remains high.  Private water supply well information is included in Table B‐5A, and supply  well locations are depicted on Figure 3.      WR received authorizations in 2015 from each of the property owners associated with WSW‐2,  WSW‐3, WSW‐4 and WSW‐5 to allow for water line installations.  Ms. Jennifer Powell (WSW‐2)  indicated that she is unwilling to authorize abandonment of her supply well; however, she is willing  to provide a statement indicating that the well will not be utilized as a potable supply following  connection of the property to the municipal supply.  No other property owners have responded  to requests relating to well abandonments.        5.       Regional and Site Geology and Hydrology  The Geologic Map of North Carolina depicts the site is located in the metamorphosed granitic  rocks of the intrusive rocks of the Carolina Slate Belt. The Geologic Map of North Carolina  indicates the site is underlain by megacrystic, well foliated, metamorphosed granitic rock which  locally contains hornblende and is comprised of the Chapel Hill, Chatham, Farrington, Meadow  Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites.    According to the United States Department of Agricultural (USDA) Natural Resources  Conservation Service (NRCS) Web Soil Survey, the source area is underlain by the Cecil‐Urban  land complex. The Cecil‐Urban land complex, 2 to 10 percent slopes, is well drained, found on  summits and shoulders of interfluves, and the parent material is saprolite derived from granite and  gneiss and/or schist.  Boring log records from the site indicate that soil beneath the site is  predominantly silt with very fine sands and clays.    SECTION D. GROUNDWATER SAMPLING – MARCH 2023    WR mobilized to the site on March 6, 2023 to sample the monitoring wells associated with the  site and water supply well WSW‐2. The locations of MW‐1, MW‐2R, MW‐3, MW‐4R, MW‐5, and  RW‐1 are shown on Figure 2 and the location of WSW‐2 is shown on Figure 3.  Prior to purging activities, groundwater levels were gauged with a decontaminated electronic  water interface meter. Groundwater levels measured within the monitoring wells ranged from  26.37 ft‐BTOC in MW‐2R to 39.14 ft‐BTOC in MW‐5. Groundwater elevations were utilized to  generate a groundwater flow map at the site, based on the March 2023 groundwater levels (Figure  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  11     4).  Groundwater elevation data indicated that groundwater flows to the southeast in the vicinity  of the source area.  Historically, groundwater flow direction has been to the east and/or southeast.  Groundwater elevations and well construction information is summarized in Table B‐7.  After gauging all wells, the monitoring wells were purged a minimum of three volumes of  groundwater using dedicated bailers.  Groundwater samples were then placed directly into  laboratory‐provided containers, placed on ice, and under property chain‐of‐custody procedures,  transported to Waypoint Analytical, Inc. located in Charlotte, NC, to be analyzed for VOCs by  SM6200B.  Laboratory Results  Laboratory analysis of the groundwater samples collected from MW‐1, MW‐2R, MW‐3, MW‐4R,  MW‐5, and RW‐1 indicated the following:      Benzene was reported in the groundwater samples obtained from MW‐1 at concentrations  exceeding the GCL.   MTBE concentrations fell below the GCL’s from previous groundwater sampling event from  MW‐1, MW‐5, and RW‐1.   Several compounds in excess of the 2L Standards were present in MW‐1, MW‐2R, MW‐5,  and RW‐1.   No compounds were present above the laboratory detection limits in MW‐3 or MW‐4R.    Analytical results for monitoring wells MW‐1 and MW‐5 had high dilution factors, resulting in high  Method Quantitation Limits (MQL) for some compounds, therefore, it is likely that additional  compounds were present above the 2L Standards in both wells. A summary of the groundwater  analytical results is presented in Table B‐4. Dissolved benzene and MTBE isoconcentration maps  are included as Figures 5 and 6, respectively. A summary of the groundwater analytical results is  shown on Figure 7. A photographic record and the field notes are included in Appendix A.  A copy  of the laboratory analytical report and chain‐of‐custody is included in Appendix B. WR’s standard  operating procedures are provided in Appendix C.    SECTION E. CONCLUSIONS AND RECOMMENDATIONS    This report documents the results of field activities conducted at the site for TA‐01, which included  a groundwater sampling event. Conclusions based on observations, analytical data and research  relating to the release at the site combined with historical information include the following:   Five (5) sole‐source potable water supply wells are located within 1,000 feet of the source  area on the site.  In addition, two (2) active water supply wells (used for irrigation and car  washing) are located within 1,000 feet of the source area, while two (2) inactive water supply  wells were identified within the same radius.  The nearest of the active potable water supply  wells is WSW‐2, located approximately 470 feet up‐gradient of the source area.  Note: WR  believes that WSW‐8, a well listed as an active irrigation well was abandoned or destroyed  during the construction of the Piedmont Classical High School located to the east of the site.     Elimination of potable receptors could be completed within 600 feet of the source if  connection is completed for the properties where water supply wells WSW‐2, WSW‐3 and  WithersRavenel Our People. Your Success.  Humble’s Country Store – NCDEQ Inc. #11517 WR Project # 23‐0307‐H  Groundwater Monitoring Report May 2023  12     WSW‐4 are located.  Based on an interview with the City of Greensboro Water Resource  Department, a municipal water line is not located within the right‐of‐way for Lorraine Road  (location of WSW‐5 and WSW‐11).   No well head protection areas were identified within 0.5 miles of the site.   No surface water bodies were identified within 500 feet of the source area.     Benzene was reported in the groundwater samples obtained from MW‐1 at a concentration  exceeding the GCL.   One or more compounds were reported in samples from MW‐1, MW‐2R, MW‐5 and  recovery well RW‐1 at concentrations exceeding the 2L Standards.     Post‐MMPE sampling has shown reductions in concentrations in MW‐1 and RW‐1.   Groundwater flow based on March 2023 measurements appears to flow to the southeast  through the site.  The observed groundwater flow direction is consistent with historical data.     While the extent of groundwater impact at the site has not been defined to the west, south,  or southeast of the source area, the plume appears to encompass the former UST locations,  the former dispenser location, and presumably extends to the west of the source area – in  the direction away from groundwater flow.    Based on the results of assessment and monitoring activities conducted at the site in association  with this TA, WR recommends the following:   Continued groundwater monitoring at the site.   Continued monitoring of water supply well WSW‐2.   Connect the properties containing water supply wells WSW‐2, WSW‐3, and WSW‐4 to  municipal water, based on owner approvals for their connection, followed by abandonment  of the water supply wells on the properties.   If funding is available, conduct a Remedial Design Characterization to further characterize  impacts to soil and groundwater at the site.     WithersRavenel Our People. Your Success. FIGURES KBB LA DRAWN BY: 04/18/2023 23-0307-H 1 SUBJECT SITE ±0.42 ACRE SCALE:FIGURE NO.: PROJECT NO.:DATE:APPROVED BY: HUMBLE'S COUNTRY STORENCDEQ INCIDENT # 115171383 LEES CHAPEL ROADGREENSBORO, GUILFORD COUNTY, NC GENERAL LOCATION MAP WithersRavenel Engineers | Planners | Surveyors 115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com 1"=500 ' GRAPHIC SCALE 1 inch = 500 ft. 0 500250 1000 HUMBLE'SCOUNTRYSTORELEES CHAPEL RDYANCEYVILLE RDMW-4MW-3MW-2FORMER USTLOCATIONSMW-2RMW-1FORMER DISPENSERLOCATIONRW-1MW-5MW-4RKBB LA DRAWN BY: 04/18/2023 23-0307-H 2 SCALE:FIGURE NO.: PROJECT NO.:DATE:APPROVED BY:SITE MAPWithersRavenel Engineers | Planners | Surveyors 115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com 1"=20 'GRAPHIC SCALE1 inch = 20 ft.0201040LEGENDTYPE II MONITORING WELL LOCATIONTYPE II RECOVERY WELL LOCATIONNOTES: 1.) 2022 AERIAL OBTAINED FROM NC ONE MAP.HUMBLE'S COUNTRY STORENCDEQ INCIDENT # 11517 1383 LEES CHAPEL ROADGREENSBORO, GUILFORD COUNTY, NC LEE 'S CHAPE L ROAD LEE'S CHA P E L R O A D YANCEYVILLE ROAD YANCEYVILLE ROAD PIEDMONTCLASSICALSCHOOLKBB LA DRAWN BY: 04/18/2023 23-0307-H 3 SCALE:FIGURE NO.: PROJECT NO.:DATE:APPROVED BY:RECEPTOR LOCATIONSWithersRavenel Engineers | Planners | Surveyors 115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com 1"=300 'HUMBLE'S COUNTRY STORENCDEQ INCIDENT # 11517 1383 LEE'S CHAPEL ROADGREENSBORO, GUILFORD COUNTY, NCGRAPHIC SCALE1 inch = 300 ft.0300150600 HUMBLE'SCOUNTRYSTORELEES CHAPEL RDYANCEYVILLE RDMW-4MW-3MW-2FORMER USTLOCATIONSMW-2RMW-1FORMER DISPENSERLOCATIONRW-1MW-5MW-4R69.5 70.0 70.5(71.10)(69.36)(60.66)(70.54)(70.57)(71.14)71.0 69.5 70.0 70.5 71.0 KBB LA DRAWN BY: 04/18/2023 23-0307-H 4 SCALE:FIGURE NO.: PROJECT NO.:DATE:APPROVED BY: GROUNDWATER HYDRAULICGRADIENT MAPMARCH 2023 WithersRavenel Engineers | Planners | Surveyors 115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com 1"=20 'GRAPHIC SCALE1 inch = 20 ft.0201040LEGENDTYPE II MONITORING WELL LOCATIONTYPE II RECOVERY WELL LOCATIONGROUNDWATER ELEVATION CONTOUR(INFERRED WHERE DASHED)GROUNDWATER ELEVATION (FT)INFERRED GROUNDWATER FLOW DIRECTIONNOTES:1. 2022 AERIAL OBTAINED FROM NC ONE MAP.2. GROUNDWATER ELEVATIONS FROM WELL MW-5 NOT USED INGENERATION OF CONTOURS.HUMBLE'S COUNTRY STORENCDEQ INCIDENT # 11517 1383 LEES CHAPEL ROADGREENSBORO, GUILFORD COUNTY, NC(71.14) HUMBLE'SCOUNTRYSTORELEES CHAPEL RDYANCEYVILLE RDMW-4MW-3MW-2FORMER USTLOCATIONSMW-2RMW-1FORMER DISPENSERLOCATIONRW-1MW-5MW-4R(<0.500)(20,300)(424)(<0.500)(1,500)5,000111 1 (3,550)CBM LA DRAWN BY: 4/18/2023 23-0307-H 5 SCALE:FIGURE NO.: PROJECT NO.:DATE:APPROVED BY: DISSOLVED BENZENEISOCONCENTRATION MAPMARCH 2023 WithersRavenel Engineers | Planners | Surveyors 115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com 1"=20 'GRAPHIC SCALE1 inch = 20 ft.0201040LEGENDTYPE II MONITORING WELL LOCATIONTYPE II RECOVERY WELL LOCATIONGROUNDWATER BENZENE CONCENTRATION (ug/L)VALUES SHOWN IN RED EXCEED NC GCLESTIMATED EXTENT OF GROUNDWATER BENZENECONTAMINATION AT LEVELS EXCEEDING 2L STANDARDESTIMATED EXTENT OF GROUNDWATER BENZENECONTAMINATION AT LEVELS EXCEEDING NC GCLNOTES: 1.) 2022 AERIAL OBTAINED FROM NC ONE MAP.HUMBLE'S COUNTRY STORENCDEQ INCIDENT # 11517 1383 LEES CHAPEL ROADGREENSBORO, GUILFORD COUNTY, NC(424) HUMBLE'SCOUNTRYSTORELEES CHAPEL RDYANCEYVILLE RDMW-4MW-3MW-2FORMER USTLOCATIONSMW-2RMW-1FORMER DISPENSERLOCATIONRW-1MW-5MW-4R(<1.00)(97.8)(<1.00)202020 20 (16,400)(4,770)(11,200)KBB LA DRAWN BY: 04/18/2023 23-0307-H 6 SCALE:FIGURE NO.: PROJECT NO.:DATE:APPROVED BY: DISSOLVED MTBEISOCONCENTRATION MAP MARCH 2023 WithersRavenel Engineers | Planners | Surveyors 115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com 1"=20 'GRAPHIC SCALE1 inch = 20 ft.0201040HUMBLE'S COUNTRY STORENCDEQ INCIDENT # 11517 1383 LEES CHAPEL ROADGREENSBORO, GUILFORD COUNTY, NCLEGENDTYPE II MONITORING WELL LOCATIONTYPE II RECOVERY WELL LOCATIONGROUNDWATER MTBE CONCENTRATION (ug/L)ESTIMATED EXTENT OF GROUNDWATER MTBE CONTAMINATION AT LEVELS EXCEEDING 2L STANDARDNOTES: 1.) 2022 AERIAL OBTAINED FROM NC ONE MAP.(404) HUMBLE'SCOUNTRYSTORELEES CHAPEL RDYANCEYVILLE RDMW-4MW-3MW-2FORMER USTLOCATIONSMW-2RMW-1FORMER DISPENSERLOCATIONRW-1MW-5MW-4RMGM LA DRAWN BY: 04/18/2023 23-0307-H 7 SCALE:FIGURE NO.: PROJECT NO.:DATE:APPROVED BY: GROUNDWATER ANALYTICALRESULTS MAPMARCH 2023 WithersRavenel Engineers | Planners | Surveyors 115 MacKenan Drive | Cary, NC 27511 | t: 919.469.3340 | license #: F-1479 | www.withersravenel.com 1"=20 'GRAPHIC SCALE1 inch = 20 ft.0201040HUMBLE'S COUNTRY STORENCDEQ INCIDENT # 11517 1383 LEES CHAPEL ROADGREENSBORO, GUILFORD COUNTY, NCLEGENDTYPE II MONITORING WELL LOCATIONTYPE II RECOVERY WELL LOCATIONNOTES: 1.) 2022 AERIAL OBTAINED FROM NC ONE MAP. WithersRavenel Our People. Your Success. TABLES UST IDNumberCurrent/LastContentsPreviousContentsCapacity(in gallons)ConstructionDetailsTankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofUSTWas release associated with UST System? (Y/N)1 Gasoline N/A 1,000 Steel5 x 6Steel Piping Connectedto DispenserJanuary 1964Permanently Closed By Removal(December 20, 1993)Y2 Gasoline N/A 1,000 Steel 4 x 10Steel Piping Connectedto DispenserJanuary 1964Permanently Closed By Removal(December 20, 1993)YAST IDNumberCurrent/LastContentsPreviousContentsCapacity(in gallons)ConstructionDetailsTankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofASTWas release associated with AST System? (Y/N)IncidentNumberMaterialReleasedDateofRelease11517 Gasoline UnknownTable B-1Site History: UST/AST System & Other Release InformationHumble's Country StorePetroleum contamination was identified in soil samples collected during tank removal activities. 1383 Lee's Chapel RoadGreensboro, Guilford County, NCIncident Number: 11517Description of ReleaseW&R is not aware of any ASTs associated with the subject site.Page 1 of 1 Calculated AcetoneBenzeneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-Dichloroethane EthanolEthylbenzeneDi-isopropyl ether (IPE)Isopropylbenzenep-IsopropyltolueneMethyl n-Butyl Ketone (2-Hexanone)2-Butanone (MEK)Methylene ChlorideMethyl tert-butyl ether4-Methyl-2-pentanone (MIBK)Naphthalenen-PropylbenzeneStyreneToluene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylenes67-64-1 71-43-2 75-27-4 104-51-8 135-98-8 67-66-3 106-93-4 107-06-2 64-17-5 100-41-4 108-20-3 98-82-8 99-87-6 591-78-6 78-93-3 75-09-2 1634-04-4 108-10-1 91-20-3 103-65-1 100-42-5 108-88-3 79-00-5 95-63-6 108-67-8 NA 8/14/2003 NR 34,400 <50 NR NR <50 54 130 NR 4,440 5,880 NR NR NR NR <250 77,500 NR 1,420 NR NR 51,600 NR NR NR 20,900 9/7-11/2004 9/27/2004 11/8/2005 6/21/2006 11/13/2006 11/19/2007 1/11/2011 5/8/2012 12/3/2014 8/12/2015 2/6/2017 6/4-8/2018 8/27/2019 1500 34,000 <6.2 <50 140 <7.6 <5.1 150 120,000 3,300 3,200 200 <8.9 <6.5 <24 <8.3 37,000 <100 670 340 100 52,000 <6.6 2,700 670 18,000 2/20/2020 <310 38,000 <62 <50 <76 <7.6 <51 <66 <27000 4,700 3,500 <54 <89 <65 <24 <8.3 40,000 <78 1,600 620 <47 58,000 <6.6 4,400 1,200 24,000 4/28/2021 825 37,500 <25.0 175 41.3 <7.6 <25.0 107 25,300 4,350 2,710 183 <25.0 86 <24 <100 33,100 <50.0 1,200 631 140 69,700 <6.6 4,430 1,250 65,300 3/14-18/2022 4/27/2022 <1000 26,200 <50.0 61.6 <50.0 <50.0 <50.0 101 <200 4,150 2,150 194 <50.0 101 <500 <200 25,200 <100 1,280 597 129 38,300 <50.0 4,540 1,190 19,100 3/6/2023 <10000 20,300 <500 <500 <500 <500 <500 <500 <200000 2,350 1,540 <500 <500 <1000 <5000 <2000 16,400 <1000 <1000 <500 <500 33,300 <500 2,150 569 11,900 6/18/2004 NR 1,200 <200 NR NR <200 <0.020 <200 NR 1,900 <200 NR NR NR NR 530 760 NR <400 NR NR 3,700 NR NR NR 9,600 9/27/2004 NR 265 NR NR NR NR <0.020 <1.0 NR 470 120 NR NR NR NR NR 145 NR 240 NR NR 1,030 NR NR NR 1,760 11/8/2005 NR 481 NR NR NR NR <1.0 <1.0 NR 902 107 NR NR NR NR NR 244 NR <500 NR NR 546 NR NR NR 4,830 6/21/2006 NR 1,190 NR NR NR NR <25 <25 NR 1,990 <25 NR NR NR NR NR 814 NR 473 NR NR 2,560 NR NR NR 9,750 11/13/2006 NR 780 NR NR NR NR <50 <50 NR 1,200 <50 NR NR NR NR NR 540 NR 390 NR NR 1,600 NR NR NR 6,400 11/19/2007 NR 585 NR NR NR NR <1.0 <1.0 NR 778 19.7 NR NR NR NR NR 346 NR 368 NR NR 537 NR NR NR 3,992 1/11/2011 5/8/2012 12/3/2014 8/12/2015 8/12/2015 <2500 741 <50.0 <50.0 <50.0 <250 <50.0 <50.0 NR 1,360 <50.0 101 <50.0 <65 <500 <250 358 <500 253 362 <50.0 1,260 <50.0 2,130 604 5,460 8/27/2019 <100 920 <0.62 18 25 <0.76 <0.51 <0.66 <270 1,600 15 100 7.2 <6.5 <2.4 <0.83 240 50 350 350 6.2 1,500 <0.66 2,800 700 8,000 2/20/2020 <31 920 <0.62 <7.6 <7.6 <0.76 <5.1 <6.6 <2700 1,700 <5.0 130 <8.9 120 <2.4 <0.83 190 <7.8 400 450 <4.7 1,400 <0.66 3,000 850 7,500 4/28/2021 <500 500 <25.0 52.2 <25.0 <0.76 <25.0 <25.0 <10000 1,320 <25.0 107 <25.0 100 ND <100 136 <50.0 419 345 <25.0 806 <0.66 2,660 752 6,350 4/27/2022 <1000 404 <50.0 <50.0 <50.0 <50.0 <50.0 <50.0 <200 1560 <50.0 203 <50.0 110 <500 <200 112 <100 571 642 <50.0 458 <50.0 4,110 1,240 8,010 3/6/2023 <10.0 424 <0.500 17.6 14.2 <0.500 <0.500 <0.500 <200 1,600 4.33 90.5 6.65 92.4 39.3 <2.00 97.8 34.3 456 517 <0.500 560 3.45 3,930 1,060 8,530 6/18/2004 NR <1.0 <1.0 NR NR <1.0 <0.020 <1.0 NR 1.1 <1.0 NR NR NR NR NR <1.0 NR <2.0 NR NR 2.2 NR NR NR 5.2 9/27/2004 NR 17 NR NR NR NR <0.020 <1.0 NR 6.8 <1.0 NR NR NR NR NR <1.0 NR 13.5 NR NR 15.2 NR NR NR 27 11/8/2005 NR <1.0 NR NR NR NR <1.0 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR 12.2 NR NR <1.0 NR NR NR <3.0 6/21/2006 NR <0.5 NR NR NR NR <0.5 <0.5 NR <0.5 <0.5 NR NR NR NR NR <0.5 NR <0.5 NR NR <0.5 NR NR NR <1.0 11/13/2006 NR <1.0 NR NR NR NR <1.0 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR <2.0 NR NR <1.0 NR NR NR <3.0 1/11/2011 5/8/2012 12/3/2014 8/12/2015 8/27/2019 <0.31 <0.048 <0.062 <0.076 <0.076 <0.076 <0.051 <0.066 <27 <0.061 <0.050 <0.054 <0.089 <0.065 <0.24 <0.083 <0.042 <0.078 <0.19 <0.087 <0.047 <0.044 <0.066 <0.054 <0.076 <0.15 2/20/2020 <0.31 <0.048 <0.062 <0.076 <0.076 <0.076 <0.051 <0.066 <27 <0.061 <0.050 <0.054 <0.089 <0.065 <0.24 <0.083 <0.042 <0.078 <0.19 <0.087 <0.047 <0.044 <0.066 <0.054 <0.076 <0.15 4/27/2022 <10.0 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <200 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 3/6/2023 <10.0 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <200 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500600010.4 70 70 70 0.02 0.4 4000 600 70 70 25 40 4000 5 20 100 6 70 70 600 0.6 400 400 500 6,000,000 5,000 400 5,900 8,800 70,000 50 400 4,000,000 80,000 70,000 30,500 11,700 40,000 4,000,000 5,000 20,000 100,000 6,000 26,100 70,000 260,000 600 28,500 24,100 50,000 Notes:NL = Not Listed NR = Not Reported Result = Result Exceeds Laboratory Detection LimitsResult= Result Exceeds 2L StandardResult= Result Exceeds GCL Value NOT SAMPLED - LNAPL PRESENT Surfactant-Enhanced MMPE 3.) NC 2L Standard - North Carolina Groundwater Quality Standard defined by NCAC Title 15A, Subchapter 02L, Section .0202 (Water Quality Standards for Class GA Groundwater). DateCollected NOT SAMPLED - DRY 1.) All results provided in ug/L (micrograms per liter) or parts per billion. 2.) Compounds analyzed 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. NOT SAMPLED - DRY 4.) GCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater. NOT SAMPLED - LNAPL PRESENT NOT SAMPLED - LNAPL PRESENT GCLs for Groundwater NOT SAMPLED - LNAPL PRESENT NOT SAMPLED - LNAPL PRESENT MMPE Event 6200B - Volatile Organic Compounds NOT SAMPLED - LNAPL PRESENT NOT SAMPLED - LNAPL PRESENT NOT SAMPLED - DRY MW-1 NOT SAMPLED - DRY MW-2 NC 2L Standard Humble's Country Store TABLE B-4 Greensboro, Guilford County, NC Incident Number: 11517 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS NOT SAMPLED - DRY NOT SAMPLED - LNAPL PRESENT SampleID Analytical Method 1383 Lee's Chapel Road NOT SAMPLED - DRY NOT SAMPLED - DRY NOT SAMPLED - DRY MW-2R MMPE Event MW-3 NOT SAMPLED - WELL NOT LOCATED NOT SAMPLED - WELL NOT LOCATED Page 1 of 3 Calculated AcetoneBenzeneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-Dichloroethane EthanolEthylbenzeneDi-isopropyl ether (IPE)Isopropylbenzenep-IsopropyltolueneMethyl n-Butyl Ketone (2-Hexanone)2-Butanone (MEK)Methylene ChlorideMethyl tert-butyl ether4-Methyl-2-pentanone (MIBK)Naphthalenen-PropylbenzeneStyreneToluene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylenes67-64-1 71-43-2 75-27-4 104-51-8 135-98-8 67-66-3 106-93-4 107-06-2 64-17-5 100-41-4 108-20-3 98-82-8 99-87-6 591-78-6 78-93-3 75-09-2 1634-04-4 108-10-1 91-20-3 103-65-1 100-42-5 108-88-3 79-00-5 95-63-6 108-67-8 NA DateCollected 6200B - Volatile Organic Compounds Humble's Country Store TABLE B-4 Greensboro, Guilford County, NC Incident Number: 11517 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS SampleID Analytical Method 1383 Lee's Chapel Road 1/5/2005 NR 120 NR NR NR NR 0.064 <1.0 NR 610 <1.0 NR NR NR NR NR <1.0 NR 310 NR NR 2500 NR NR NR 3,900 11/8/2005 NR 32 NR NR NR NR <1.0 <1.0 NR 428 <1.0 NR NR NR NR NR <1.0 NR 180 NR NR 523 NR NR NR 2,250 6/21/2006 NR 103 NR NR NR NR <0.50 <0.50 NR 1,200 <0.50 NR NR NR NR NR <0.50 NR 252 NR NR 55.1 NR NR NR 3,080 11/13/2006 NR 89 NR NR NR NR <50 <50 NR 1,200 <50 NR NR NR NR NR <50 NR 340 NR NR 99 NR NR NR 4,570 11/19/2007 NR 98.7 NR NR NR NR <0.50 <0.5 NR 1,490 <0.50 NR NR NR NR NR <0.50 NR 530 NR NR 71.2 NR NR NR 3,646 1/11/2011 NR 57 NR 15 11 NR <0.41 <0.54 NR 1,100 <0.42 79 7.7 NR NR NR <0.56 39 370 190 NR 50 NR 560 230 2,360 5/8/2012 NR 69 NR 21 <0.54 NR <0.41 <0.54 NR 820 <0.42 65 12 NR NR NR <0.56 <1.1 270 160 NR 3.3 NR 16 24 100 12/3/2014 150 24 <1.0 1.9 1.5 <5.0 <1.0 <1.0 NR 91 <1.0 9.4 2.3 NR NR <5.0 <1.0 <10 34 17 <1.0 6.8 <1.0 36 15 119.7 8/12/2015 <50.0 25.9 <1.00 1.69 1.31 <5.00 <1.00 <1.00 NR 68 <1.00 7.39 2.69 NR <10.0 <5.00 <1.00 <10.0 23.8 12.2 <1.00 6.26 <1.00 23.4 5.67 52.15 8/27/2019 2/20/2020 <3.1 27 <0.62 2.7 3.0 <0.76 <0.51 <0.66 <270 48 30 1.8 5.2 <0.65 NR <0.83 1.0 <0.78 12 7.8 <0.47 9.6 NR 15 1.5 26 4/28/2021 <10.0 <0.500 <0.500 <0.500 <0.500 ND <0.500 <0.500 <200 <0.500 <0.500 <0.500 <0.500 <1.0 ND <2.0 <1.0 <1.0 <1.0 <0.500 <0.500 0.743 NR <0.500 <0.500 <0.500 4/27/2022 <10.0 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <200 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 3/6/2023 <10.0 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <200 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 8/12/2015 <10000 3,940 <200 <200 <200 <1000 <200 <200 NR 437 726 <200 <200 <0.65 <2000 <1000 26,400 <2000 <1000 <200 <200 3440 <200 621 <200 2,061 2/6/2017 <50 109 <1 <1 <1 <5 <1 <1 NR 11.1 8.5 <1 <1 <0.65 <10 <5 45.9 <10 <5 1.29 <1 151 <1 8.94 2.22 53.4 6/4-8/2018 8/27/2019 210 4,700 <0.62 72 24 <0.76 7.3 55 <270 970 480 52 7.4 <0.65 <2.4 <0.83 5,400 19 320 170 26 8,900 <0.66 1,300 300 4,900 2/20/2020 <31 1,500 <6.2 86 <7.6 <0.76 <5.1 <6.6 <2700 1,500 160 120 <8.9 <6.5 <2.4 <0.83 5,300 <7.8 550 470 <4.7 6,100 <0.66 3,100 880 7,200 4/28/2021 <1000 1,630 <50.0 88 <50.0 ND <50.0 <50.0 <20000 593 596 <50.0 <50.0 <100 ND <200 24,700 <100 227 156 <50 3,540 <0.66 1,270 410 3,100 3/14-18/2022 4/27/2022 <1000 207 <50.0 <50.0 <50.0 <50.0 <50.0 <50.0 <200 61.7 490 <50.0 <50.0 <100 <500 <200 28,600 <100 115 <50.0 <50.0 115 <50.0 178 53.5 272 3/6/2023 <10000 1,500 <500 <500 <500 <500 <500 <500 <200000 721 <500 <500 <500 <1000 <5000 <2000 11,200 <1000 <1000 <500 <500 4,000 <500 1,150 <500 2,950 8/12/20152/6/2017 6/4-8/2018 8/27/2019 <1000 15,000 <6.2 <7.6 150 <7.6 <5.1 69 26,000 1,700 1,200 190 <8.9 <6.5 <24 <8.3 17,000 <7.8 720 240 <50 22,000 <6.6 3,100 820 13,000 2/20/2020 <31 14,000 <6.2 140 52 <7.6 <5.1 53 <2700 3,100 1,100 190 <8.9 <6.5 <24 <8.3 17,000 <7.8 1,300 730 82 18,000 <6.6 5,300 1,400 17,000 4/28/2021 <1000 19,100 <50.0 68.9 <50.0 ND <50.0 <50.0 <20000 2,110 2,230 102 <50.0 <100 ND <200 62,400 <100 622 288 75.2 8,890 <6.6 2,420 637 10,100 3/14-18/2022 4/27/2022 <1000 7,520 <50.0 51.2 <50.0 <50.0 <50.0 <50.0 <200 2,020 1,380 142 <50.0 <100 <500 <200 35,900 <100 952 433 <50.0 5,910 <50.0 3,280 931 10,200 3/6/2023 <1000 3,550 <50.0 <50.0 <50.0 <50.0 <50.0 <50.0 <20000 619 268 <50.0 <50.0 <100 <500 <200 4,770 <100 296 124 <50.0 4,350 <50.0 1,290 356 4,250 6000 1 0.4 70 70 70 0.02 0.4 4000 600 70 70 25 40 4000 5 20 100 6 70 70 600 0.6 400 400 5006,000,000 5,000 400 5,900 8,800 70,000 50 400 4,000,000 80,000 70,000 30,500 11,700 40,000 4,000,000 5,000 20,000 100,000 6,000 26,100 70,000 260,000 600 28,500 24,100 50,000 Notes:NL = Not ListedNR= Not Reported Result = Result Exceeds Laboratory Detection LimitsResult= Result Exceeds 2L StandardResult= Result Exceeds GCL Value 3.) NC 2L Standard - North Carolina Groundwater Quality Standard defined by NCAC Title 15A, Subchapter 02L, Section .0202 (Water Quality Standards for Class GA Groundwater). 2.) Compounds analyzed 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. MW-4R MMPE Event 1.) All results provided in ug/L (micrograms per liter) or parts per billion. 4.) GCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater. MW-4 Not Found - Presumed Destroyed by Road Widening or New School Construction GCLs for Groundwater MW-5 Surfactant-Enhanced MMPE MMPE Event RW-1 NOT SAMPLED - LNAPL PRESENT NOT SAMPLED - LNAPL PRESENT Surfactant-Enhanced MMPE NC 2L Standard Page 2 of 3 Calculated AcetoneBenzeneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-Dichloroethane EthanolEthylbenzeneDi-isopropyl ether (IPE)Isopropylbenzenep-IsopropyltolueneMethyl n-Butyl Ketone (2-Hexanone)2-Butanone (MEK)Methylene ChlorideMethyl tert-butyl ether4-Methyl-2-pentanone (MIBK)Naphthalenen-PropylbenzeneStyreneToluene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylenes67-64-1 71-43-2 75-27-4 104-51-8 135-98-8 67-66-3 106-93-4 107-06-2 64-17-5 100-41-4 108-20-3 98-82-8 99-87-6 591-78-6 78-93-3 75-09-2 1634-04-4 108-10-1 91-20-3 103-65-1 100-42-5 108-88-3 79-00-5 95-63-6 108-67-8 NA DateCollected 6200B - Volatile Organic Compounds Humble's Country Store TABLE B-4 Greensboro, Guilford County, NC Incident Number: 11517 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS SampleID Analytical Method 1383 Lee's Chapel Road 6/18/2004 NR <1.0 <1.0 NR NR <1.0 <0.020 <1.0 NR <1.0 <1.0 NR NR NR NR <2.0 <1.0 NR <2.0 NR NR <1.0 NR NR NR <2.0 9/27/2004 NR <1.0 NR NR NR NR <0.020 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR 17.7 NR NR <1.0 NR NR NR <1.0 11/8/2005 NR <1.0 NR NR NR NR <1.0 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR 5.43 NR NR 4.25 NR NR NR <3.0 6/21/2006 NR <0.50 NR NR NR NR <0.50 0.71 NR <0.50 <0.50 NR NR NR NR NR <0.50 NR 10.2 NR NR 1.58 NR NR NR <1.0 11/13/2006 NR <1.0 NR NR NR NR <1.0 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR <2.0 NR NR <1.0 NR NR NR <3.0 1/11/2011 NR <0.054 NR <0.059 <0.059 NR <0.041 <0.054 NR <0.054 <0.042 <0.034 <0.059 <0.065 <0.11 NR <0.056 <0.048 <0.094 <0.059 <0.047 <0.057 NR <0.038 <0.038 <0.17 5/8/2012 NR <0.054 NR <0.059 <0.059 NR <0.041 <0.054 NR <0.054 <0.042 <0.034 <0.059 <0.065 <0.11 NR <0.056 <0.048 <0.094 <0.059 <0.047 <0.057 NR <0.038 <0.038 <0.17 2/20/2020 <0.31 <0.054 <0.062 <0.059 <0.059 NR <0.041 <0.054 <27 <0.054 <0.042 <0.034 <0.059 <0.065 <0.11 <0.083 <0.056 <0.048 <0.094 <0.059 <0.047 <0.057 NR <0.038 <0.038 <0.17 3/6/2023 <10.0 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <200 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 WSW-3 2/20/2020 <0.31 <0.054 <0.062 <0.059 <0.059 NR <0.041 <0.054 <27 <0.054 <0.042 <0.034 <0.059 <0.065 <0.11 <0.083 <0.056 <0.048 <0.094 <0.059 <0.047 <0.057 NR <0.038 <0.038 <0.17 1/11/2011 NR <0.054 NR <0.059 <0.059 NR <0.041 <0.054 NR <0.054 <0.042 <0.034 <0.059 <0.065 <0.11 NR <0.056 <0.048 <0.094 <0.059 <0.065 <0.057 NR <0.038 <0.038 <0.17 5/8/2012 NR <0.054 NR <0.059 <0.059 NR <0.041 <0.054 NR <0.054 <0.042 <0.034 <0.059 <0.065 <0.11 NR <0.056 <0.048 <0.094 <0.059 <0.065 <0.057 NR <0.038 <0.038 <0.17 12/3/2014 <50 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <1.0 NR <1.0 <1.0 <1.0 <1.0 <0.065 <10 <5.0 <1.0 <10 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 2/20/2020 <0.31 <0.054 <0.062 <0.059 <0.059 NR <0.041 <0.054 <27 <0.054 <0.042 <0.034 <0.059 <0.065 <0.11 <0.083 <0.056 <0.048 <0.094 <0.059 <0.047 <0.057 <0.038 <0.038 <0.17 WSW-5 12/3/2014 <50 <1.0 <1.0 <1.0 <1.0 <5.0 <1.0 <1.0 NR <1.0 <1.0 <1.0 <1.0 <1.0 <10 <5.0 <1.0 <10 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 WSW-7 11/8/2005 NR <1.0 NR NR NR NR <1.0 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR <5.0 NR NR 4.34 NR NR NR <3.0 6/18/2004 NR <1.0 11 NR NR 36 <0.020 <1.0 NR <1.0 <1.0 NR NR NR NR <2.0 <1.0 NR <2.0 NR NR <1.0 NR NR NR <2.0 9/27/2004 NR <1.0 NR NR NR NR <0.020 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR <1.0 NR NR <1.0 NR NR NR <1.0 11/8/2005 NR <1.0 NR NR NR NR <1.0 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR <5.0 NR NR <1.0 NR NR NR <3.0 6/21/2006 NR <0.50 NR NR NR NR <0.50 <0.50 NR <0.50 <0.50 NR NR NR NR NR <0.50 NR 1.06 NR NR <0.50 NR NR NR <1.0 11/13/2006 NR <1.0 NR NR NR NR <1.0 <1.0 NR <1.0 <1.0 NR NR NR NR NR <1.0 NR <2.0 NR NR <1.0 NR NR NR <3.0 11/19/2007 NR <0.50 NR NR NR NR <0.50 <0.50 NR <0.50 <0.50 NR NR NR NR NR <0.50 NR <2.0 NR NR 0.6 NR NR NR <1.5 6000 1 0.4 70 70 70 0.02 0.4 4000 600 70 70 25 40 4000 5 20 100 6 70 70 600 0.6 400 400 5006,000,000 5,000 400 5,900 8,800 70,000 50 400 4,000,000 80,000 70,000 30,500 11,700 40,000 4,000,000 5,000 20,000 100,000 6,000 26,100 70,000 260,000 600 28,500 24,100 50,000 Notes:NL = Not ListedNR= Not ReportedResult= Result Exceeds Laboratory Detection Limits Result = Result Exceeds 2L StandardResult= Result Exceeds GCL Value 3.) NC 2L Standard - North Carolina Groundwater Quality Standard defined by NCAC Title 15A, Subchapter 02L, Section .0202 (Water Quality Standards for Class GA Groundwater). WSW-4 4.) GCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater. 1.) All results provided in ug/L (micrograms per liter) or parts per billion. 2.) Compounds analyzed 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. NC 2L Standard WSW-8 GCLs for Groundwater WSW-2 Page 3 of 3 Easting NorthingWSW‐1 78770069731383 Lees Chapel RoadGreensboro, NC (Subject Site)Pradeep Dhakal1448 Cantwell CourtHigh Point, NC 27265AbandonedN/A N/AN/AN/AN/AN/AWSW‐2 78770163484109 Yanceyville RoadGreensboro, NCJennifer M.Powell336‐587‐94504109 Yanceyville RoadGreensboro, NCActive(Potable)Unknown Unknown 473 Up‐Gradient 1770623.10 871408.20WSW‐3 78770164594111 Yanceyville RoadBrowns Summit, NCSteven L. & Kathy T.Simmons4111 Yanceyville RoadBrowns Summit, NCActive(Potable)UnknownUnknown540 Up‐Gradient 1770703.13 871483.68WSW‐4 78770166254201 Yanceyville RoadBrowns Summit, NCAvery Living TrustDale A. & Deanna B. Avery4201 Yanceyville RoadBrowns Summit, NCActive(Potable)Unknown Unknown 699 Up‐Gradient 1770716.66 871642.51WSW‐5 7877014471806 Lorraine RoadBrown Summit, NCJoseph Young, Jr. &Wanda J. Young806 Lorraine RoadBrown Summit, NCActive(Potable)Unknown Unknown 619 Up‐Gradient 1770445.00 871502.83WSW‐7 78770052854003 Yanceyville RoadGreensboro, NCKaren L. Pruitt4003 Yanceyville RoadGreensboro, NCActive(Secondary Use Only)UnknownUnknown782 Down‐Gradient 1770637.20 870164.84WSW‐8 78771125131400 Lees Chapel RoadGreensboro, NC Piedmont Classical Real Estate Properties LLC1400 Lees Chapel RoadGreensboro, NC Unknown Unknown Unknown 376 Cross‐gradient 1771077.38 871018.01WSW‐9 78770054824009 Yanceyville RoadGreensboro, NCKaren L. Pruitt4003 Yanceyville RoadGreensboro, NCInactiveUnknown Unknown 532 Down‐Gradient 1770614.56 870419.72WSW‐10 78770055814013 Yanceyville RoadGreensboro, NCKaren L. Pruitt4003 Yanceyville RoadGreensboro, NCInactiveUnknownUnknown 432 Down‐Gradient 1770641.73 870517.03WSW‐11 7877014730807 Lorraine RoadBrown Summit, NCShannon & Timothy DeBerry807 Lorraine RoadBrown Summit, NCActive(Potable)Unknown Unknown 744 Up‐Gradient 1770388.20 871615.02Incident Number: 11517Property Address       1.)  Well location addresses and property owner information was obtained from the Guilford County GIS Department.  Parcel owner data current as of May 18, 2022.Well Screen Interval(feet)TABLE B‐5PUBLIC & PRIVATE WATER SUPPLY WELL INFORMATIONHumble's Country Store1383 Lee's Chapel RoadGreensboro, Guilford County, NCWell Depth(feet)Property OwnerLocation Relative to Groundwater FlowNotes: Well ID       4.)  Secondary Use = Well is used for non‐potable purposes only, such as irrigation and washing cars.       2.)  Information regarding the water supply well's use and location was obtained through field observations, owner interviews, and from the City of Greensboro's Water Resource department.Well Distance from Source Area(feet)Well UseWell Coordinates(NC State Plane NAD 83 Feet)Property Owner AddressPINNumber       3.)   Well distance from source area values were calculated by W&R based on well locations determined by field observations.Page 1 of 1 Easting NorthingMW‐1 8/11/2003 2 37 22 22‐37 100.00 3/6/2023 29.43‐‐‐70.57 1770748.27 870913.15MW‐2R 8/6/2015 2 47 32 32‐47 97.51 3/6/2023 26.37‐‐‐71.14 1770710.79 870909.33MW‐3 6/18/2004 2 35 20 20‐35 98.41 3/6/2023 27.31‐‐‐71.10 1770731.31 870968.16MW‐4R 2/20/2020 2 45 30 30‐45 101.58 3/6/2023 32.22‐‐‐69.36 1770855.58 870922.90MW‐5 8/12/2015 2 50 35 35‐50 99.80 3/6/2023 39.14‐‐‐60.66 1770749.08 870929.633/6/2023 28.96‐‐‐70.541)2)3)30‐5041770751.16 870917.79TABLE B‐71383 Lee's Chapel RoadMONITORING & REMEDIATION WELL CONSTRUCTION INFORMATIONWell Casing Diameter(inches)Free Product Thickness(feet)Screened Interval     (feet)Humble's Country StoreIncident Number: 11517Well IDWell Coordinates(NC State Plane NAD 83 Feet)Greensboro, Guilford County, NCWell construction information was obtained from previous consultants reports, excepting construction data for MW‐2R, MW‐5 and RW‐1.Top‐of‐Casing elevations for MW‐1, MW‐2, MW‐3 and MW‐4 were determined by previous consultants and are relative to an elevation of 100.00 feet established at the top of casing (TOC) of MW‐1.  Elevations of wells MW‐2R, MW‐5 and RW‐1 surveyed by W&R on August 12, 2015. Elevation of well MW‐4R was surveyed by W&R on February 20, 2020.Depth‐to‐Water from Top‐of‐Casing(feet)8/12/201550RW‐1Notes: Date InstalledGroundwaterElevation      (feet)Total Depth     (feet)Date Water Level MeasuredGroundwater elevation calculated by: (Top‐of‐Casing ‐ Depth‐to‐Water) + (Free Product Thickness x 0.8581).Top‐of‐Casing Elevation      (feet)Well Casing Depth (feet)99.5030Page 1 of 1 Well ID Screened  Interval      (feet) Top‐of‐Casing Elevation       (feet) Date Water Level Measured Depth‐to‐LNAPL(feet) Depth‐to‐WaterUncorrected(feet) LNAPL Thickness(feet) Depth‐to‐WaterCorrected(feet) Groundwater SurfaceElevation          (feet) 8/14/2003 ‐‐‐29.78 N/A 29.78 70.22 9/7/2004 29.30 31.75 2.45 29.65 70.35 9/27/2004 30.53 30.54 0.01 30.53 69.47 1/5/2005 29.88 31.42 1.54 30.10 69.90 11/8/2005 31.56 33.04 1.48 31.77 68.23 6/21/2006 31.46 33.26 1.80 31.72 68.28 11/13/2006 33.39 35.16 1.77 33.64 66.36 11/19/2007 34.43 35.94 1.51 34.64 65.36 1/11/2011 5/8/2012 35.47 36.08 0.61 35.56 64.44 12/3/2014 NM NM 0.35 NM NM 8/12/2015 5/24/2016 34.19 34.81 0.62 34.28 65.72 2/6/2017 33.68 34.74 1.06 33.83 66.17 8/27/2019 ‐‐‐29.62 ‐‐‐29.62 70.38 2/20/2020 ‐‐‐29.30 ‐‐‐29.30 70.70 4/28/2021 ‐‐‐26.85 ‐‐‐26.85 73.15 3/14/2022 (pre‐MMPE)‐‐‐28.33 ‐‐‐28.33 71.67 3/18/2022 (post‐MMPE)‐‐‐Dry ‐‐‐Dry Dry 4/27/2022 ‐‐‐28.39 ‐‐‐28.39 71.61 3/6/2023 ‐‐‐29.43 ‐‐‐29.43 70.57 6/18/2004 ‐‐‐25.21 ‐‐‐25.21 72.08 9/7/2004 ‐‐‐26.80 ‐‐‐26.80 70.49 9/27/2004 ‐‐‐27.09 ‐‐‐27.09 70.20 1/5/2005 ‐‐‐26.86 ‐‐‐26.86 70.43 1/10/2005 ‐‐‐26.95 ‐‐‐26.95 70.34 11/8/2005 ‐‐‐29.20 ‐‐‐29.20 68.09 6/21/2006 ‐‐‐30.80 ‐‐‐30.80 66.49 11/13/2006 ‐‐‐30.93 ‐‐‐30.93 66.36 11/19/2007 ‐‐‐32.95 ‐‐‐32.95 64.34 1/11/2011 5/8/2012 ‐‐‐33.43 ‐‐‐33.43 63.86 12/3/2014 8/12/2015 8/12/2015 ‐‐‐37.52 ‐‐‐37.52 59.99 8/27/2019 ‐‐‐27.01 ‐‐‐27.01 70.50 2/20/2020 ‐‐‐26.23 ‐‐‐26.23 71.28 4/28/2021 ‐‐‐23.85 ‐‐‐23.85 73.66 3/14/2022 (pre‐MMPE)‐‐‐25.80 ‐‐‐25.80 71.71 3/18/2022 (post‐MMPE)‐‐‐31.14 ‐‐‐31.14 66.37 4/27/2022 ‐‐‐25.26 ‐‐‐25.26 72.25 3/6/2023 ‐‐‐26.37 ‐‐‐26.37 71.14 6/18/2004 ‐‐‐26.33 ‐‐‐26.33 72.08 9/27/2004 ‐‐‐28.28 ‐‐‐28.28 70.13 1/5/2005 ‐‐‐28.03 ‐‐‐28.03 70.38 1/10/2005 ‐‐‐28.12 ‐‐‐28.12 70.29 11/8/2005 ‐‐‐30.41 ‐‐‐30.41 68.00 6/21/2006 ‐‐‐31.74 ‐‐‐31.74 66.67 11/13/2006 ‐‐‐31.14 ‐‐‐31.14 67.27 1/11/2011 5/8/2012 12/3/2014 8/12/2015 8/27/2019 ‐‐‐27.88 ‐‐‐27.88 70.53 2/20/2020 ‐‐‐27.19 ‐‐‐27.19 71.22 4/28/2021 ‐‐‐NM ‐‐‐NM NM 4/27/2022 ‐‐‐25.99 ‐‐‐25.99 72.42 3/6/2023 ‐‐‐27.31 ‐‐‐27.31 71.10 98.4120 ‐ 35MW‐3 97.5132‐47MW‐2R 20 ‐ 35 100.00 TABLE B‐9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS Humble's Country Store 1383 Lee's Chapel RoadGreensboro, Guilford County, NC Incident Number: 11517 22 ‐ 37MW‐1 DRY DRY DRY DRY 97.29MW‐2 DRY DRY DRY Well Not Located Well Not Located Page 1 of 2 Well ID Screened  Interval      (feet) Top‐of‐Casing Elevation       (feet) Date Water Level Measured Depth‐to‐LNAPL(feet) Depth‐to‐WaterUncorrected(feet) LNAPL Thickness(feet) Depth‐to‐WaterCorrected(feet) Groundwater SurfaceElevation          (feet) TABLE B‐9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS Humble's Country Store 1383 Lee's Chapel RoadGreensboro, Guilford County, NC Incident Number: 11517 1/10/2005 ‐‐‐33.30 ‐‐‐33.30 68.11 11/8/2005 ‐‐‐35.39 ‐‐‐35.39 66.02 6/21/2006 ‐‐‐32.07 ‐‐‐32.07 69.34 11/13/2006 ‐‐‐37.25 ‐‐‐37.25 64.16 11/19/2007 ‐‐‐38.93 ‐‐‐38.93 62.48 1/11/2011 ‐‐‐39.30 ‐‐‐39.30 62.11 5/8/2012 ‐‐‐39.19 ‐‐‐39.19 62.22 12/3/2014 ‐‐‐39.20 ‐‐‐39.20 62.21 8/12/2015 ‐‐‐40.99 ‐‐‐40.99 60.42 8/27/2019 2/20/2020 ‐‐‐38.69 ‐‐‐38.69 62.89 4/28/2021 ‐‐‐29.63 ‐‐‐29.63 71.95 4/27/2022 ‐‐‐26.20 ‐‐‐26.20 75.383/6/2023 ‐‐‐32.22 ‐‐‐32.22 69.36 8/12/2015 ‐‐‐38.17 ‐‐‐38.17 61.63 5/24/2016 ‐‐‐34.95 ‐‐‐34.95 64.85 2/6/2017 ‐‐‐34.47 ‐‐‐34.47 65.33 8/27/2019 ‐‐‐29.49 ‐‐‐29.49 70.31 2/20/2020 ‐‐‐29.07 ‐‐‐29.07 70.73 4/28/2021 ‐‐‐26.32 ‐‐‐26.32 73.48 3/14/2022 (pre‐MMPE)‐‐‐28.57 ‐‐‐28.57 71.23 3/18/2022 (post‐MMPE)‐‐‐34.10 ‐‐‐34.10 65.70 4/27/2022 ‐‐‐26.59 ‐‐‐26.59 73.21 3/6/2023 ‐‐‐39.14 ‐‐‐39.14 60.66 8/12/2015 39.96 40.12 0.16 39.98 59.52 5/24/2016 33.98 35.83 1.85 34.24 65.26 2/6/2017 33.53 35.28 1.75 33.78 65.72 8/27/2019 ‐‐‐29.14 ‐‐‐29.14 70.36 2/20/2020 ‐‐‐28.78 ‐‐‐28.78 70.72 4/28/2021 ‐‐‐26.27 ‐‐‐26.27 73.23 3/14/2022 (pre‐MMPE)‐‐‐28.57 ‐‐‐28.57 70.93 3/18/2022 (post‐MMPE)‐‐‐28.29 ‐‐‐28.29 71.21 4/27/2022 ‐‐‐25.43 ‐‐‐25.43 74.07 3/6/2023 ‐‐‐28.96 ‐‐‐28.96 70.54 1)Well construction information was obtained from previous consultants reports, excepting construction data for MW‐2R, MW‐5 and RW‐1. 2) 3)4) 30 ‐ 45MW‐4R 101.41 101.58 99.5030‐50RW‐1 99.8035‐50MW‐5 MW‐430 ‐ 45 Monitoring well MW‐4 is assumed to have been destroyed during construction of the Piedmont Classical High School.   Groundwater elevation calculated by: (Top‐of‐Casing ‐ Depth‐to‐Water) + (LNAPL Thickness x 0.8581). Top‐of‐Casing elevations for MW‐1, MW‐2, MW‐3 and MW‐4 were determined by previous consultants and are relative to an elevation of 100.00 feet established at the top of casing (TOC) of MW‐1.  Elevations of wells MW‐2R, MW‐5 and RW‐1 surveyed by W&R on August 12, 2015. Elevation of well MW‐4R surveyed by W&R on February 20, 2020. Notes:  Assumed destroyed ‐ See Note Below Page 2 of 2 WithersRavenel Our People. Your Success. APPENDIX A FIELD NOTES & PHOTOGRAPHIC RECORD WithersRavenel Our People. Your Success. Humble’s Country Store – NCDEQ Incident #11517 WR Project # 23-0307-H Groundwater Monitoring Report Photograph Dates: March 6, 2023 PHOTO 1 View of the site facing west (MW-1 and RW-1) PHOTO 2 MW-2R facing west WithersRavenel Our People. Your Success. Humble’s Country Store – NCDEQ Incident #11517 WR Project # 23-0307-H Groundwater Monitoring Report Photograph Dates: March 6, 2023 PHOTO 3 MW-3 facing north PHOTO 4 MW-4R facing northwest WithersRavenel Our People. Your Success. Humble’s Country Store – NCDEQ Incident #11517 WR Project # 23-0307-H Groundwater Monitoring Report Photograph Dates: March 6, 2023 PHOTO 5 MW-5 facing northwest PHOTO 6 Spigot sampled from WSW-2 location WithersRavenel Our People. Your Success. APPENDIX B LABORATORY ANALYTICAL REPORT Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis. 3/14/2023 Withers & Ravenel Liz Allyn 115 Mackenan Dr. BUILDING 117 Cary, NC, 27511 Ref: Analytical Testing Lab Report Number: 23-067-0016 Client Project Description: Humble's Country State 23-0307-H Dear Liz Allyn: Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/8/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as- received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 53 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-067-0016 Page 2 of 53 Report Number: Sample Summary Table Client Project Description: 23-067-0016 Humble's Country State 23-0307-H Lab No Client Sample ID Matrix Date Collected Date Received 03/06/2023 12:15Aqueous 90525 MW-1 03/08/2023 12:30 03/06/2023 13:40Aqueous 90526 MW-2R 03/08/2023 12:30 03/06/2023 11:45Aqueous 90527 MW-3 03/08/2023 12:30 03/06/2023 13:20Aqueous 90528 MW-4R 03/08/2023 12:30 03/06/2023 12:35Aqueous 90529 MW-5 03/08/2023 12:30 03/06/2023 13:00Aqueous 90530 RW-1 03/08/2023 12:30 03/06/2023 14:00Aqueous 90531 WSW-2 03/08/2023 12:30 03/06/2023 14:10Aqueous 90532 Field Blank 03/08/2023 12:30 Page 3 of 53 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-067-0016 Report Limit Project:Humble's Country State V 90525MW-1 20300 03/09/2023 22:066200BBenzeneµg/L 500 1540 03/09/2023 22:066200BDi-Isopropyl Ether (DIPE)µg/L 500 2350 03/09/2023 22:066200BEthylbenzeneµg/L 500 16400 03/09/2023 22:066200BMethyl tert-butyl ether (MTBE)µg/L 1000 33300 03/09/2023 22:066200BTolueneµg/L 500 2150 03/09/2023 22:066200B1,2,4-Trimethylbenzene µg/L 500 569 03/09/2023 22:066200B1,3,5-Trimethylbenzene µg/L 500 3840 03/09/2023 22:066200Bo-Xylene µg/L 500 8020 03/09/2023 22:066200Bm,p-Xylene µg/L 1000 11900 03/09/2023 22:066200BXylene (Total)µg/L 500 V 90526MW-2R 424 03/10/2023 20:096200BBenzeneµg/L 50.0 17.6 03/09/2023 17:346200Bn-Butylbenzene µg/L 0.500 14.2 03/09/2023 17:346200Bsec-Butyl benzene µg/L 0.500 4.33 03/09/2023 17:346200BDi-Isopropyl Ether (DIPE)µg/L 0.500 1600 03/10/2023 20:096200BEthylbenzeneµg/L 50.0 92.4 03/09/2023 17:346200B2-Hexanone µg/L 1.00 90.5 03/09/2023 17:346200BIsopropylbenzeneµg/L 0.500 6.65 03/09/2023 17:346200B4-Isopropyl toluene µg/L 0.500 39.3 03/09/2023 17:346200BMethyl Ethyl Ketone (MEK)µg/L 5.00 97.8 03/09/2023 17:346200BMethyl tert-butyl ether (MTBE)µg/L 1.00 34.3 03/09/2023 17:346200B4-Methyl-2-Pentanone µg/L 1.00 456 03/10/2023 20:096200BNaphthaleneµg/L 100 517 03/10/2023 20:096200Bn-Propylbenzene µg/L 50.0 560 03/10/2023 20:096200BTolueneµg/L 50.0 3.45 03/09/2023 17:346200B1,1,2-Trichloroethane µg/L 0.500 3930 03/10/2023 20:096200B1,2,4-Trimethylbenzene µg/L 50.0 1060 03/10/2023 20:096200B1,3,5-Trimethylbenzene µg/L 50.0 2350 03/10/2023 20:096200Bo-Xylene µg/L 50.0 6180 03/10/2023 20:096200Bm,p-Xylene µg/L 100 8530 03/10/2023 20:096200BXylene (Total)µg/L 50.0 V 90529MW-5 1500 03/09/2023 22:346200BBenzeneµg/L 500 721 03/09/2023 22:346200BEthylbenzeneµg/L 500 11200 03/09/2023 22:346200BMethyl tert-butyl ether (MTBE)µg/L 1000 4000 03/09/2023 22:346200BTolueneµg/L 500 Page 4 of 53 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-067-0016 Report Limit Project:Humble's Country State V 90529MW-5 1150 03/09/2023 22:346200B1,2,4-Trimethylbenzene µg/L 500 945 03/09/2023 22:346200Bo-Xylene µg/L 500 2000 03/09/2023 22:346200Bm,p-Xylene µg/L 1000 2950 03/09/2023 22:346200BXylene (Total)µg/L 500 V 90530RW-1 3550 03/09/2023 21:396200BBenzeneµg/L 50.0 268 03/09/2023 21:396200BDi-Isopropyl Ether (DIPE)µg/L 50.0 619 03/09/2023 21:396200BEthylbenzeneµg/L 50.0 4770 03/09/2023 21:396200BMethyl tert-butyl ether (MTBE)µg/L 100 296 03/09/2023 21:396200BNaphthaleneµg/L 100 124 03/09/2023 21:396200Bn-Propylbenzene µg/L 50.0 4350 03/09/2023 21:396200BTolueneµg/L 50.0 1290 03/09/2023 21:396200B1,2,4-Trimethylbenzene µg/L 50.0 356 03/09/2023 21:396200B1,3,5-Trimethylbenzene µg/L 50.0 1310 03/09/2023 21:396200Bo-Xylene µg/L 50.0 2940 03/09/2023 21:396200Bm,p-Xylene µg/L 100 4250 03/09/2023 21:396200BXylene (Total)µg/L 50.0 Page 5 of 53   Client: Withers & Ravenel CASE NARRATIVE Project: Humble's Country State Lab Report Number: 23-067-0016 Date: 3/13/2023 Volatile Organic Compounds - GC/MS Method 6200B Analyte: 1,1,2,2-Tetrachloroethane QC Batch No: V30650/V30648 LCS fails low for this compound. All other QC including LCSD pass method requirements. A standard at or below the RL was run and saw recovery of this compound. No hits in the sample. No further action taken. Analyte: 1,2,3-Trichlorobenzene QC Batch No: V30719/V30648 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,3-Trichloropropane QC Batch No: V30650/V30648 LCS and LCSD fail low for this compound. All other QC pass method requirements. A standard at or below the RL was run and saw recovery of this compound. No hits in the sample. No further action taken. Analyte: 1,2,4-Trichlorobenzene QC Batch No: V30719/V30648 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 4-Isopropyltoluene QC Batch No: V30719/V30648 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2-Dibromo-3-chloropropane QC Batch No: V30719/V30648 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Hexachlorobutadiene QC Batch No: V30719/V30648 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: n-Butylbenzene QC Batch No: V30719/V30648 Page 6 of 53   Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Vinyl acetate QC Batch No: V30719/V30648 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Page 7 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-1 90525 Matrix: 3/6/2023 12:15 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <10000 µg/L 10000Acetone 1000 03/09/23 22:06 6200BMSA 20300 µg/L 500Benzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Bromobenzene 1000 03/09/23 22:06 6200BMSA <1000 µg/L 1000Bromochloromethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Bromodichloromethane 1000 03/09/23 22:06 6200BMSA <5000 µg/L 5000Bromoform 1000 03/09/23 22:06 6200BMSA <1000 µg/L 1000Bromomethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 500n-Butylbenzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500sec-Butyl benzene 1000 03/09/23 22:06 6200BMSA <2000 µg/L 2000tert-Butyl benzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Carbon Tetrachloride 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Chlorobenzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Chlorodibromomethane 1000 03/09/23 22:06 6200BMSA <1000 µg/L 1000Chloroethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Chloroform 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Chloromethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5002-Chlorotoluene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5004-Chlorotoluene 1000 03/09/23 22:06 6200BMSA <2000 µg/L 20001,2-Dibromo-3-Chloropropane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,2-Dibromoethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Dibromomethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,2-Dichlorobenzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,3-Dichlorobenzene 1000 03/09/23 22:06 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 8 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-1 90525 Matrix: 3/6/2023 12:15 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <500 µg/L 5001,4-Dichlorobenzene 1000 03/09/23 22:06 6200BMSA <5000 µg/L 5000Dichlorodifluoromethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,1-Dichloroethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,2-Dichloroethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,1-Dichloroethene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500cis-1,2-Dichloroethene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500trans-1,2-Dichloroethene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,2-Dichloropropane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,3-Dichloropropane 1000 03/09/23 22:06 6200BMSA <2000 µg/L 20002,2-Dichloropropane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,1-Dichloropropene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500cis-1,3-Dichloropropene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500trans-1,3-Dichloropropene 1000 03/09/23 22:06 6200BMSA <200000 µg/L 200000Ethanol 1000 03/09/23 22:06 6200BMSA 2350 µg/L 500Ethylbenzene 1000 03/09/23 22:06 6200BMSA <3000 µg/L 3000Hexachlorobutadiene 1000 03/09/23 22:06 6200BMSA 1540 µg/L 500Di-Isopropyl Ether (DIPE)1000 03/09/23 22:06 6200BMSA <500 µg/L 500Isopropylbenzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5004-Isopropyl toluene 1000 03/09/23 22:06 6200BMSA <1000 µg/L 10002-Hexanone 1000 03/09/23 22:06 6200BMSA <5000 µg/L 5000Methyl Ethyl Ketone (MEK)1000 03/09/23 22:06 6200BMSA <2000 µg/L 2000Methylene Chloride 1000 03/09/23 22:06 6200BMSA 16400 µg/L 1000Methyl tert-butyl ether (MTBE)1000 03/09/23 22:06 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 9 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-1 90525 Matrix: 3/6/2023 12:15 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1000 µg/L 10004-Methyl-2-Pentanone 1000 03/09/23 22:06 6200BMSA <1000 µg/L 1000Naphthalene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500n-Propylbenzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Styrene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,1,1,2-Tetrachloroethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,1,2,2-Tetrachloroethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Tetrachloroethene 1000 03/09/23 22:06 6200BMSA 33300 µg/L 500Toluene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,2,3-Trichlorobenzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,2,4-Trichlorobenzene 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,1,1-Trichloroethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,1,2-Trichloroethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Trichloroethene 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Trichlorofluoromethane 1000 03/09/23 22:06 6200BMSA <500 µg/L 5001,2,3-Trichloropropane 1000 03/09/23 22:06 6200BMSA 2150 µg/L 5001,2,4-Trimethylbenzene 1000 03/09/23 22:06 6200BMSA 569 µg/L 5001,3,5-Trimethylbenzene 1000 03/09/23 22:06 6200BMSA <5000 µg/L 5000Vinyl Acetate 1000 03/09/23 22:06 6200BMSA <500 µg/L 500Vinyl Chloride 1000 03/09/23 22:06 6200BMSA 8020 µg/L 1000m,p-Xylene 1000 03/09/23 22:06 6200BMSA 3840 µg/L 500o-Xylene 1000 03/09/23 22:06 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 10 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-1 90525 Matrix: 3/6/2023 12:15 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 11900 µg/L 500Xylene (Total)1000 03/09/23 22:06 6200B Surrogate: 4-Bromofluorobenzene 93.8 Limits: 70-130%03/09/23 22:061000 MSA V30650 Surrogate: Dibromofluoromethane 95.4 Limits: 70-130%03/09/23 22:061000 MSA V30650 Surrogate: 1,2-Dichloroethane - d4 81.2 Limits: 70-130%03/09/23 22:061000 MSA V30650 Surrogate: Toluene-d8 87.8 Limits: 70-130%03/09/23 22:061000 MSA V30650 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 11 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-2R 90526 Matrix: 3/6/2023 13:40 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <10.0 µg/L 10.0Acetone 1 03/09/23 17:34 6200BMSA 424 µg/L 50.0Benzene 100 03/10/23 20:09 6200BMSA <0.500 µg/L 0.500Bromobenzene 1 03/09/23 17:34 6200BMSA <1.00 µg/L 1.00Bromochloromethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Bromodichloromethane 1 03/09/23 17:34 6200BMSA <5.00 µg/L 5.00Bromoform 1 03/09/23 17:34 6200BMSA <1.00 µg/L 1.00Bromomethane 1 03/09/23 17:34 6200BMSA 17.6 µg/L 0.500n-Butylbenzene 1 03/09/23 17:34 6200BMSA 14.2 µg/L 0.500sec-Butyl benzene 1 03/09/23 17:34 6200BMSA <2.00 µg/L 2.00tert-Butyl benzene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Carbon Tetrachloride 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Chlorobenzene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Chlorodibromomethane 1 03/09/23 17:34 6200BMSA <1.00 µg/L 1.00Chloroethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Chloroform 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Chloromethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5002-Chlorotoluene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5004-Chlorotoluene 1 03/09/23 17:34 6200BMSA <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,2-Dibromoethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Dibromomethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/09/23 17:34 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 12 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-2R 90526 Matrix: 3/6/2023 13:40 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/09/23 17:34 6200BMSA <5.00 µg/L 5.00Dichlorodifluoromethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,2-Dichloroethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,2-Dichloropropane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,3-Dichloropropane 1 03/09/23 17:34 6200BMSA <2.00 µg/L 2.002,2-Dichloropropane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,1-Dichloropropene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/09/23 17:34 6200BMSA <200 µg/L 200Ethanol 1 03/09/23 17:34 6200BMSA 1600 µg/L 50.0Ethylbenzene 100 03/10/23 20:09 6200BMSA <3.00 µg/L 3.00Hexachlorobutadiene 1 03/09/23 17:34 6200BMSA 4.33 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/09/23 17:34 6200BMSA 90.5 µg/L 0.500Isopropylbenzene 1 03/09/23 17:34 6200BMSA 6.65 µg/L 0.5004-Isopropyl toluene 1 03/09/23 17:34 6200BMSA 92.4 µg/L 1.002-Hexanone 1 03/09/23 17:34 6200BMSA 39.3 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/09/23 17:34 6200BMSA <2.00 µg/L 2.00Methylene Chloride 1 03/09/23 17:34 6200BMSA 97.8 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/09/23 17:34 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 13 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-2R 90526 Matrix: 3/6/2023 13:40 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 34.3 µg/L 1.004-Methyl-2-Pentanone 1 03/09/23 17:34 6200BMSA 456 µg/L 100Naphthalene 100 03/10/23 20:09 6200BMSA 517 µg/L 50.0n-Propylbenzene 100 03/10/23 20:09 6200BMSA <0.500 µg/L 0.500Styrene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Tetrachloroethene 1 03/09/23 17:34 6200BMSA 560 µg/L 50.0Toluene 100 03/10/23 20:09 6200BMSA <0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/09/23 17:34 6200BMSA 3.45 µg/L 0.5001,1,2-Trichloroethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Trichloroethene 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Trichlorofluoromethane 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/09/23 17:34 6200BMSA 3930 µg/L 50.01,2,4-Trimethylbenzene 100 03/10/23 20:09 6200BMSA 1060 µg/L 50.01,3,5-Trimethylbenzene 100 03/10/23 20:09 6200BMSA <5.00 µg/L 5.00Vinyl Acetate 1 03/09/23 17:34 6200BMSA <0.500 µg/L 0.500Vinyl Chloride 1 03/09/23 17:34 6200BMSA 6180 µg/L 100m,p-Xylene 100 03/10/23 20:09 6200BMSA 2350 µg/L 50.0o-Xylene 100 03/10/23 20:09 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 14 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-2R 90526 Matrix: 3/6/2023 13:40 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 8530 µg/L 50.0Xylene (Total)100 03/10/23 20:09 6200B Surrogate: 4-Bromofluorobenzene 92.6 Limits: 70-130%03/09/23 17:341 MSA V30650 Surrogate: Dibromofluoromethane 94.6 Limits: 70-130%03/09/23 17:341 MSA V30650 Surrogate: 1,2-Dichloroethane - d4 80.8 Limits: 70-130%03/09/23 17:341 MSA V30650 Surrogate: Toluene-d8 90.2 Limits: 70-130%03/09/23 17:341 MSA V30650 Surrogate: 4-Bromofluorobenzene 95.8 Limits: 70-130%03/10/23 20:09100 MSA V30719 Surrogate: Dibromofluoromethane 114 Limits: 70-130%03/10/23 20:09100 MSA V30719 Surrogate: 1,2-Dichloroethane - d4 95.0 Limits: 70-130%03/10/23 20:09100 MSA V30719 Surrogate: Toluene-d8 98.6 Limits: 70-130%03/10/23 20:09100 MSA V30719 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 15 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-3 90527 Matrix: 3/6/2023 11:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <10.0 µg/L 10.0Acetone 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Benzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Bromobenzene 1 03/10/23 16:31 6200BMSA <1.00 µg/L 1.00Bromochloromethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Bromodichloromethane 1 03/10/23 16:31 6200BMSA <5.00 µg/L 5.00Bromoform 1 03/10/23 16:31 6200BMSA <1.00 µg/L 1.00Bromomethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500n-Butylbenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500sec-Butyl benzene 1 03/10/23 16:31 6200BMSA <2.00 µg/L 2.00tert-Butyl benzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Carbon Tetrachloride 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Chlorobenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Chlorodibromomethane 1 03/10/23 16:31 6200BMSA <1.00 µg/L 1.00Chloroethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Chloroform 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Chloromethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5002-Chlorotoluene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5004-Chlorotoluene 1 03/10/23 16:31 6200BMSA <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2-Dibromoethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Dibromomethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/10/23 16:31 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 16 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-3 90527 Matrix: 3/6/2023 11:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/10/23 16:31 6200BMSA <5.00 µg/L 5.00Dichlorodifluoromethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2-Dichloroethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2-Dichloropropane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,3-Dichloropropane 1 03/10/23 16:31 6200BMSA <2.00 µg/L 2.002,2-Dichloropropane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,1-Dichloropropene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/10/23 16:31 6200BMSA <200 µg/L 200Ethanol 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Ethylbenzene 1 03/10/23 16:31 6200BMSA <3.00 µg/L 3.00Hexachlorobutadiene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Isopropylbenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5004-Isopropyl toluene 1 03/10/23 16:31 6200BMSA <1.00 µg/L 1.002-Hexanone 1 03/10/23 16:31 6200BMSA <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/10/23 16:31 6200BMSA <2.00 µg/L 2.00Methylene Chloride 1 03/10/23 16:31 6200BMSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/10/23 16:31 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 17 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-3 90527 Matrix: 3/6/2023 11:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.004-Methyl-2-Pentanone 1 03/10/23 16:31 6200BMSA <1.00 µg/L 1.00Naphthalene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500n-Propylbenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Styrene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Tetrachloroethene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Toluene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,1,2-Trichloroethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Trichloroethene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Trichlorofluoromethane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 03/10/23 16:31 6200BMSA <5.00 µg/L 5.00Vinyl Acetate 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500Vinyl Chloride 1 03/10/23 16:31 6200BMSA <1.00 µg/L 1.00m,p-Xylene 1 03/10/23 16:31 6200BMSA <0.500 µg/L 0.500o-Xylene 1 03/10/23 16:31 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 18 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-3 90527 Matrix: 3/6/2023 11:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 03/10/23 16:31 6200B Surrogate: 4-Bromofluorobenzene 98.8 Limits: 70-130%03/10/23 16:311 MSA V30719 Surrogate: Dibromofluoromethane 112 Limits: 70-130%03/10/23 16:311 MSA V30719 Surrogate: 1,2-Dichloroethane - d4 93.4 Limits: 70-130%03/10/23 16:311 MSA V30719 Surrogate: Toluene-d8 101 Limits: 70-130%03/10/23 16:311 MSA V30719 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 19 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-4R 90528 Matrix: 3/6/2023 13:20 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <10.0 µg/L 10.0Acetone 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Benzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Bromobenzene 1 03/09/23 18:28 6200BMSA <1.00 µg/L 1.00Bromochloromethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Bromodichloromethane 1 03/09/23 18:28 6200BMSA <5.00 µg/L 5.00Bromoform 1 03/09/23 18:28 6200BMSA <1.00 µg/L 1.00Bromomethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500n-Butylbenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500sec-Butyl benzene 1 03/09/23 18:28 6200BMSA <2.00 µg/L 2.00tert-Butyl benzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Carbon Tetrachloride 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Chlorobenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Chlorodibromomethane 1 03/09/23 18:28 6200BMSA <1.00 µg/L 1.00Chloroethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Chloroform 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Chloromethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5002-Chlorotoluene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5004-Chlorotoluene 1 03/09/23 18:28 6200BMSA <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2-Dibromoethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Dibromomethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/09/23 18:28 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 20 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-4R 90528 Matrix: 3/6/2023 13:20 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/09/23 18:28 6200BMSA <5.00 µg/L 5.00Dichlorodifluoromethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2-Dichloroethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2-Dichloropropane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,3-Dichloropropane 1 03/09/23 18:28 6200BMSA <2.00 µg/L 2.002,2-Dichloropropane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,1-Dichloropropene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/09/23 18:28 6200BMSA <200 µg/L 200Ethanol 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Ethylbenzene 1 03/09/23 18:28 6200BMSA <3.00 µg/L 3.00Hexachlorobutadiene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Isopropylbenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5004-Isopropyl toluene 1 03/09/23 18:28 6200BMSA <1.00 µg/L 1.002-Hexanone 1 03/09/23 18:28 6200BMSA <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/09/23 18:28 6200BMSA <2.00 µg/L 2.00Methylene Chloride 1 03/09/23 18:28 6200BMSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/09/23 18:28 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 21 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-4R 90528 Matrix: 3/6/2023 13:20 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.004-Methyl-2-Pentanone 1 03/09/23 18:28 6200BMSA <1.00 µg/L 1.00Naphthalene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500n-Propylbenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Styrene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Tetrachloroethene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Toluene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,1,2-Trichloroethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Trichloroethene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Trichlorofluoromethane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 03/09/23 18:28 6200BMSA <5.00 µg/L 5.00Vinyl Acetate 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500Vinyl Chloride 1 03/09/23 18:28 6200BMSA <1.00 µg/L 1.00m,p-Xylene 1 03/09/23 18:28 6200BMSA <0.500 µg/L 0.500o-Xylene 1 03/09/23 18:28 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 22 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-4R 90528 Matrix: 3/6/2023 13:20 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 03/09/23 18:28 6200B Surrogate: 4-Bromofluorobenzene 94.0 Limits: 70-130%03/09/23 18:281 MSA V30650 Surrogate: Dibromofluoromethane 94.6 Limits: 70-130%03/09/23 18:281 MSA V30650 Surrogate: 1,2-Dichloroethane - d4 79.2 Limits: 70-130%03/09/23 18:281 MSA V30650 Surrogate: Toluene-d8 88.4 Limits: 70-130%03/09/23 18:281 MSA V30650 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 23 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-5 90529 Matrix: 3/6/2023 12:35 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <10000 µg/L 10000Acetone 1000 03/09/23 22:34 6200BMSA 1500 µg/L 500Benzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Bromobenzene 1000 03/09/23 22:34 6200BMSA <1000 µg/L 1000Bromochloromethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Bromodichloromethane 1000 03/09/23 22:34 6200BMSA <5000 µg/L 5000Bromoform 1000 03/09/23 22:34 6200BMSA <1000 µg/L 1000Bromomethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 500n-Butylbenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500sec-Butyl benzene 1000 03/09/23 22:34 6200BMSA <2000 µg/L 2000tert-Butyl benzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Carbon Tetrachloride 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Chlorobenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Chlorodibromomethane 1000 03/09/23 22:34 6200BMSA <1000 µg/L 1000Chloroethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Chloroform 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Chloromethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5002-Chlorotoluene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5004-Chlorotoluene 1000 03/09/23 22:34 6200BMSA <2000 µg/L 20001,2-Dibromo-3-Chloropropane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,2-Dibromoethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Dibromomethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,2-Dichlorobenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,3-Dichlorobenzene 1000 03/09/23 22:34 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 24 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-5 90529 Matrix: 3/6/2023 12:35 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <500 µg/L 5001,4-Dichlorobenzene 1000 03/09/23 22:34 6200BMSA <5000 µg/L 5000Dichlorodifluoromethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,1-Dichloroethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,2-Dichloroethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,1-Dichloroethene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500cis-1,2-Dichloroethene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500trans-1,2-Dichloroethene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,2-Dichloropropane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,3-Dichloropropane 1000 03/09/23 22:34 6200BMSA <2000 µg/L 20002,2-Dichloropropane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,1-Dichloropropene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500cis-1,3-Dichloropropene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500trans-1,3-Dichloropropene 1000 03/09/23 22:34 6200BMSA <200000 µg/L 200000Ethanol 1000 03/09/23 22:34 6200BMSA 721 µg/L 500Ethylbenzene 1000 03/09/23 22:34 6200BMSA <3000 µg/L 3000Hexachlorobutadiene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Di-Isopropyl Ether (DIPE)1000 03/09/23 22:34 6200BMSA <500 µg/L 500Isopropylbenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5004-Isopropyl toluene 1000 03/09/23 22:34 6200BMSA <1000 µg/L 10002-Hexanone 1000 03/09/23 22:34 6200BMSA <5000 µg/L 5000Methyl Ethyl Ketone (MEK)1000 03/09/23 22:34 6200BMSA <2000 µg/L 2000Methylene Chloride 1000 03/09/23 22:34 6200BMSA 11200 µg/L 1000Methyl tert-butyl ether (MTBE)1000 03/09/23 22:34 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 25 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-5 90529 Matrix: 3/6/2023 12:35 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1000 µg/L 10004-Methyl-2-Pentanone 1000 03/09/23 22:34 6200BMSA <1000 µg/L 1000Naphthalene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500n-Propylbenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Styrene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,1,1,2-Tetrachloroethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,1,2,2-Tetrachloroethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Tetrachloroethene 1000 03/09/23 22:34 6200BMSA 4000 µg/L 500Toluene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,2,3-Trichlorobenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,2,4-Trichlorobenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,1,1-Trichloroethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,1,2-Trichloroethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Trichloroethene 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Trichlorofluoromethane 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,2,3-Trichloropropane 1000 03/09/23 22:34 6200BMSA 1150 µg/L 5001,2,4-Trimethylbenzene 1000 03/09/23 22:34 6200BMSA <500 µg/L 5001,3,5-Trimethylbenzene 1000 03/09/23 22:34 6200BMSA <5000 µg/L 5000Vinyl Acetate 1000 03/09/23 22:34 6200BMSA <500 µg/L 500Vinyl Chloride 1000 03/09/23 22:34 6200BMSA 2000 µg/L 1000m,p-Xylene 1000 03/09/23 22:34 6200BMSA 945 µg/L 500o-Xylene 1000 03/09/23 22:34 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 26 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:MW-5 90529 Matrix: 3/6/2023 12:35 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 2950 µg/L 500Xylene (Total)1000 03/09/23 22:34 6200B Surrogate: 4-Bromofluorobenzene 94.0 Limits: 70-130%03/09/23 22:341000 MSA V30650 Surrogate: Dibromofluoromethane 94.8 Limits: 70-130%03/09/23 22:341000 MSA V30650 Surrogate: 1,2-Dichloroethane - d4 79.6 Limits: 70-130%03/09/23 22:341000 MSA V30650 Surrogate: Toluene-d8 87.6 Limits: 70-130%03/09/23 22:341000 MSA V30650 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 27 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:RW-1 90530 Matrix: 3/6/2023 13:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1000 µg/L 1000Acetone 100 03/09/23 21:39 6200BMSA 3550 µg/L 50.0Benzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Bromobenzene 100 03/09/23 21:39 6200BMSA <100 µg/L 100Bromochloromethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Bromodichloromethane 100 03/09/23 21:39 6200BMSA <500 µg/L 500Bromoform 100 03/09/23 21:39 6200BMSA <100 µg/L 100Bromomethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0n-Butylbenzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0sec-Butyl benzene 100 03/09/23 21:39 6200BMSA <200 µg/L 200tert-Butyl benzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Carbon Tetrachloride 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Chlorobenzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Chlorodibromomethane 100 03/09/23 21:39 6200BMSA <100 µg/L 100Chloroethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Chloroform 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Chloromethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.02-Chlorotoluene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.04-Chlorotoluene 100 03/09/23 21:39 6200BMSA <200 µg/L 2001,2-Dibromo-3-Chloropropane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,2-Dibromoethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Dibromomethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,2-Dichlorobenzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,3-Dichlorobenzene 100 03/09/23 21:39 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 28 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:RW-1 90530 Matrix: 3/6/2023 13:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <50.0 µg/L 50.01,4-Dichlorobenzene 100 03/09/23 21:39 6200BMSA <500 µg/L 500Dichlorodifluoromethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,1-Dichloroethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,2-Dichloroethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,1-Dichloroethene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0cis-1,2-Dichloroethene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0trans-1,2-Dichloroethene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,2-Dichloropropane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,3-Dichloropropane 100 03/09/23 21:39 6200BMSA <200 µg/L 2002,2-Dichloropropane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,1-Dichloropropene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0cis-1,3-Dichloropropene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0trans-1,3-Dichloropropene 100 03/09/23 21:39 6200BMSA <20000 µg/L 20000Ethanol 100 03/09/23 21:39 6200BMSA 619 µg/L 50.0Ethylbenzene 100 03/09/23 21:39 6200BMSA <300 µg/L 300Hexachlorobutadiene 100 03/09/23 21:39 6200BMSA 268 µg/L 50.0Di-Isopropyl Ether (DIPE)100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Isopropylbenzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.04-Isopropyl toluene 100 03/09/23 21:39 6200BMSA <100 µg/L 1002-Hexanone 100 03/09/23 21:39 6200BMSA <500 µg/L 500Methyl Ethyl Ketone (MEK)100 03/09/23 21:39 6200BMSA <200 µg/L 200Methylene Chloride 100 03/09/23 21:39 6200BMSA 4770 µg/L 100Methyl tert-butyl ether (MTBE)100 03/09/23 21:39 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 29 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:RW-1 90530 Matrix: 3/6/2023 13:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <100 µg/L 1004-Methyl-2-Pentanone 100 03/09/23 21:39 6200BMSA 296 µg/L 100Naphthalene 100 03/09/23 21:39 6200BMSA 124 µg/L 50.0n-Propylbenzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Styrene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,1,1,2-Tetrachloroethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,1,2,2-Tetrachloroethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Tetrachloroethene 100 03/09/23 21:39 6200BMSA 4350 µg/L 50.0Toluene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,2,3-Trichlorobenzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,2,4-Trichlorobenzene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,1,1-Trichloroethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,1,2-Trichloroethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Trichloroethene 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Trichlorofluoromethane 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.01,2,3-Trichloropropane 100 03/09/23 21:39 6200BMSA 1290 µg/L 50.01,2,4-Trimethylbenzene 100 03/09/23 21:39 6200BMSA 356 µg/L 50.01,3,5-Trimethylbenzene 100 03/09/23 21:39 6200BMSA <500 µg/L 500Vinyl Acetate 100 03/09/23 21:39 6200BMSA <50.0 µg/L 50.0Vinyl Chloride 100 03/09/23 21:39 6200BMSA 2940 µg/L 100m,p-Xylene 100 03/09/23 21:39 6200BMSA 1310 µg/L 50.0o-Xylene 100 03/09/23 21:39 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 30 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:RW-1 90530 Matrix: 3/6/2023 13:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 4250 µg/L 50.0Xylene (Total)100 03/09/23 21:39 6200B Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%03/09/23 21:39100 MSA V30650 Surrogate: Dibromofluoromethane 93.2 Limits: 70-130%03/09/23 21:39100 MSA V30650 Surrogate: 1,2-Dichloroethane - d4 78.6 Limits: 70-130%03/09/23 21:39100 MSA V30650 Surrogate: Toluene-d8 88.4 Limits: 70-130%03/09/23 21:39100 MSA V30650 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 31 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:WSW-2 90531 Matrix: 3/6/2023 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <10.0 µg/L 10.0Acetone 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Benzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Bromobenzene 1 03/09/23 18:56 6200BMSA <1.00 µg/L 1.00Bromochloromethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Bromodichloromethane 1 03/09/23 18:56 6200BMSA <5.00 µg/L 5.00Bromoform 1 03/09/23 18:56 6200BMSA <1.00 µg/L 1.00Bromomethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500n-Butylbenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500sec-Butyl benzene 1 03/09/23 18:56 6200BMSA <2.00 µg/L 2.00tert-Butyl benzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Carbon Tetrachloride 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Chlorobenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Chlorodibromomethane 1 03/09/23 18:56 6200BMSA <1.00 µg/L 1.00Chloroethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Chloroform 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Chloromethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5002-Chlorotoluene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5004-Chlorotoluene 1 03/09/23 18:56 6200BMSA <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2-Dibromoethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Dibromomethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/09/23 18:56 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 32 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:WSW-2 90531 Matrix: 3/6/2023 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/09/23 18:56 6200BMSA <5.00 µg/L 5.00Dichlorodifluoromethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2-Dichloroethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2-Dichloropropane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,3-Dichloropropane 1 03/09/23 18:56 6200BMSA <2.00 µg/L 2.002,2-Dichloropropane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,1-Dichloropropene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/09/23 18:56 6200BMSA <200 µg/L 200Ethanol 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Ethylbenzene 1 03/09/23 18:56 6200BMSA <3.00 µg/L 3.00Hexachlorobutadiene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Isopropylbenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5004-Isopropyl toluene 1 03/09/23 18:56 6200BMSA <1.00 µg/L 1.002-Hexanone 1 03/09/23 18:56 6200BMSA <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/09/23 18:56 6200BMSA <2.00 µg/L 2.00Methylene Chloride 1 03/09/23 18:56 6200BMSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/09/23 18:56 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 33 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:WSW-2 90531 Matrix: 3/6/2023 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.004-Methyl-2-Pentanone 1 03/09/23 18:56 6200BMSA <1.00 µg/L 1.00Naphthalene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500n-Propylbenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Styrene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Tetrachloroethene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Toluene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,1,2-Trichloroethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Trichloroethene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Trichlorofluoromethane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 03/09/23 18:56 6200BMSA <5.00 µg/L 5.00Vinyl Acetate 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500Vinyl Chloride 1 03/09/23 18:56 6200BMSA <1.00 µg/L 1.00m,p-Xylene 1 03/09/23 18:56 6200BMSA <0.500 µg/L 0.500o-Xylene 1 03/09/23 18:56 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 34 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:WSW-2 90531 Matrix: 3/6/2023 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 03/09/23 18:56 6200B Surrogate: 4-Bromofluorobenzene 93.6 Limits: 70-130%03/09/23 18:561 MSA V30650 Surrogate: Dibromofluoromethane 95.4 Limits: 70-130%03/09/23 18:561 MSA V30650 Surrogate: 1,2-Dichloroethane - d4 80.4 Limits: 70-130%03/09/23 18:561 MSA V30650 Surrogate: Toluene-d8 88.4 Limits: 70-130%03/09/23 18:561 MSA V30650 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 35 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:Field Blank 90532 Matrix: 3/6/2023 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <10.0 µg/L 10.0Acetone 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Benzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Bromobenzene 1 03/09/23 14:50 6200BMSA <1.00 µg/L 1.00Bromochloromethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Bromodichloromethane 1 03/09/23 14:50 6200BMSA <5.00 µg/L 5.00Bromoform 1 03/09/23 14:50 6200BMSA <1.00 µg/L 1.00Bromomethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500n-Butylbenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500sec-Butyl benzene 1 03/09/23 14:50 6200BMSA <2.00 µg/L 2.00tert-Butyl benzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Carbon Tetrachloride 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Chlorobenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Chlorodibromomethane 1 03/09/23 14:50 6200BMSA <1.00 µg/L 1.00Chloroethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Chloroform 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Chloromethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5002-Chlorotoluene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5004-Chlorotoluene 1 03/09/23 14:50 6200BMSA <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2-Dibromoethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Dibromomethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2-Dichlorobenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,3-Dichlorobenzene 1 03/09/23 14:50 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 36 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:Field Blank 90532 Matrix: 3/6/2023 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 03/09/23 14:50 6200BMSA <5.00 µg/L 5.00Dichlorodifluoromethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2-Dichloroethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,1-Dichloroethene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2-Dichloropropane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,3-Dichloropropane 1 03/09/23 14:50 6200BMSA <2.00 µg/L 2.002,2-Dichloropropane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,1-Dichloropropene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 03/09/23 14:50 6200BMSA <200 µg/L 200Ethanol 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Ethylbenzene 1 03/09/23 14:50 6200BMSA <3.00 µg/L 3.00Hexachlorobutadiene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Di-Isopropyl Ether (DIPE)1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Isopropylbenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5004-Isopropyl toluene 1 03/09/23 14:50 6200BMSA <1.00 µg/L 1.002-Hexanone 1 03/09/23 14:50 6200BMSA <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 03/09/23 14:50 6200BMSA <2.00 µg/L 2.00Methylene Chloride 1 03/09/23 14:50 6200BMSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 03/09/23 14:50 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 37 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:Field Blank 90532 Matrix: 3/6/2023 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.004-Methyl-2-Pentanone 1 03/09/23 14:50 6200BMSA <1.00 µg/L 1.00Naphthalene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500n-Propylbenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Styrene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Tetrachloroethene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Toluene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2,3-Trichlorobenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2,4-Trichlorobenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,1,1-Trichloroethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,1,2-Trichloroethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Trichloroethene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Trichlorofluoromethane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2,3-Trichloropropane 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 03/09/23 14:50 6200BMSA <5.00 µg/L 5.00Vinyl Acetate 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500Vinyl Chloride 1 03/09/23 14:50 6200BMSA <1.00 µg/L 1.00m,p-Xylene 1 03/09/23 14:50 6200BMSA <0.500 µg/L 0.500o-Xylene 1 03/09/23 14:50 6200BMSA Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 38 of 53 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 23-067-0016 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 23-0307-H Received : 03/08/2023 Humble's Country State Report Date : 03/14/2023 Sample ID : Lab No : Sampled:Field Blank 90532 Matrix: 3/6/2023 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 03/09/23 14:50 6200B Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%03/09/23 14:501 MSA V30650 Surrogate: Dibromofluoromethane 97.0 Limits: 70-130%03/09/23 14:501 MSA V30650 Surrogate: 1,2-Dichloroethane - d4 83.6 Limits: 70-130%03/09/23 14:501 MSA V30650 Surrogate: Toluene-d8 89.6 Limits: 70-130%03/09/23 14:501 MSA V30650 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 39 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30650QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30648 Associated Lab Samples: 90525, 90526, 90528, 90529, 90530, 90531, 90532 LRB-V30648 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 03/09/23 13:5510.0< 10.0µg/LAcetone 03/09/23 13:550.500< 0.500µg/LBenzene 03/09/23 13:550.500< 0.500µg/LBromobenzene 03/09/23 13:551.00< 1.00µg/LBromochloromethane 03/09/23 13:550.500< 0.500µg/LBromodichloromethane 03/09/23 13:555.00< 5.00µg/LBromoform 03/09/23 13:551.00< 1.00µg/LBromomethane 03/09/23 13:550.500< 0.500µg/Ln-Butylbenzene 03/09/23 13:550.500< 0.500µg/Lsec-Butyl benzene 03/09/23 13:552.00< 2.00µg/Ltert-Butyl benzene 03/09/23 13:550.500< 0.500µg/LCarbon Tetrachloride 03/09/23 13:550.500< 0.500µg/LChlorobenzene 03/09/23 13:550.500< 0.500µg/LChlorodibromomethane 03/09/23 13:551.00< 1.00µg/LChloroethane 03/09/23 13:550.500< 0.500µg/LChloroform 03/09/23 13:550.500< 0.500µg/LChloromethane 03/09/23 13:550.500< 0.500µg/L2-Chlorotoluene 03/09/23 13:550.500< 0.500µg/L4-Chlorotoluene 03/09/23 13:552.00< 2.00µg/L1,2-Dibromo-3-Chloropropane 03/09/23 13:550.500< 0.500µg/L1,2-Dibromoethane 03/09/23 13:550.500< 0.500µg/LDibromomethane 03/09/23 13:550.500< 0.500µg/L1,2-Dichlorobenzene 03/09/23 13:550.500< 0.500µg/L1,3-Dichlorobenzene 03/09/23 13:550.500< 0.500µg/L1,4-Dichlorobenzene 03/09/23 13:555.00< 5.00µg/LDichlorodifluoromethane 03/09/23 13:550.500< 0.500µg/L1,1-Dichloroethane 03/09/23 13:550.500< 0.500µg/L1,2-Dichloroethane Page 1 of 12Date:03/14/2023 01:10 PM Page 40 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30650QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30648 Associated Lab Samples: 90525, 90526, 90528, 90529, 90530, 90531, 90532 LRB-V30648 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 03/09/23 13:550.500< 0.500µg/L1,1-Dichloroethene 03/09/23 13:550.500< 0.500µg/Lcis-1,2-Dichloroethene 03/09/23 13:550.500< 0.500µg/Ltrans-1,2-Dichloroethene 03/09/23 13:550.500< 0.500µg/L1,2-Dichloropropane 03/09/23 13:550.500< 0.500µg/L1,3-Dichloropropane 03/09/23 13:552.00< 2.00µg/L2,2-Dichloropropane 03/09/23 13:550.500< 0.500µg/L1,1-Dichloropropene 03/09/23 13:550.500< 0.500µg/Lcis-1,3-Dichloropropene 03/09/23 13:550.500< 0.500µg/Ltrans-1,3-Dichloropropene 03/09/23 13:55200< 200µg/LEthanol 03/09/23 13:550.500< 0.500µg/LEthylbenzene 03/09/23 13:553.00< 3.00µg/LHexachlorobutadiene 03/09/23 13:550.500< 0.500µg/LDi-Isopropyl Ether (DIPE) 03/09/23 13:550.500< 0.500µg/LIsopropylbenzene 03/09/23 13:550.500< 0.500µg/L4-Isopropyl toluene 03/09/23 13:551.00< 1.00µg/L2-Hexanone 03/09/23 13:555.00< 5.00µg/LMethyl Ethyl Ketone (MEK) 03/09/23 13:552.00< 2.00µg/LMethylene Chloride 03/09/23 13:551.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 03/09/23 13:551.00< 1.00µg/L4-Methyl-2-Pentanone 03/09/23 13:551.00< 1.00µg/LNaphthalene 03/09/23 13:550.500< 0.500µg/Ln-Propylbenzene 03/09/23 13:550.500< 0.500µg/LStyrene 03/09/23 13:550.500< 0.500µg/L1,1,1,2-Tetrachloroethane 03/09/23 13:550.500< 0.500µg/L1,1,2,2-Tetrachloroethane 03/09/23 13:550.500< 0.500µg/LTetrachloroethene 03/09/23 13:550.500< 0.500µg/LToluene Page 2 of 12Date:03/14/2023 01:10 PM Page 41 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30650QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30648 Associated Lab Samples: 90525, 90526, 90528, 90529, 90530, 90531, 90532 LRB-V30648 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 03/09/23 13:550.500< 0.500µg/L1,2,3-Trichlorobenzene 03/09/23 13:550.500< 0.500µg/L1,2,4-Trichlorobenzene 03/09/23 13:550.500< 0.500µg/L1,1,1-Trichloroethane 03/09/23 13:550.500< 0.500µg/L1,1,2-Trichloroethane 03/09/23 13:550.500< 0.500µg/LTrichloroethene 03/09/23 13:550.500< 0.500µg/LTrichlorofluoromethane 03/09/23 13:550.500< 0.500µg/L1,2,3-Trichloropropane 03/09/23 13:550.500< 0.500µg/L1,2,4-Trimethylbenzene 03/09/23 13:550.500< 0.500µg/L1,3,5-Trimethylbenzene 03/09/23 13:555.00< 5.00µg/LVinyl Acetate 03/09/23 13:550.500< 0.500µg/LVinyl Chloride 03/09/23 13:551.00< 1.00µg/Lm,p-Xylene 03/09/23 13:550.500< 0.500µg/Lo-Xylene 03/09/23 13:554-Bromofluorobenzene (S)94.4 70-130 03/09/23 13:55Dibromofluoromethane (S)94.0 70-130 03/09/23 13:551,2-Dichloroethane - d4 (S)81.4 70-130 03/09/23 13:55Toluene-d8 (S)90.2 70-130 LCS-V30648 LCSD-V30648Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 34.0 85.082.533.040.0µg/LAcetone 40-160 2.9 20.0 16.3 81.581.516.320.0µg/LBenzene 70-130 0.0 20.0 14.4 72.073.014.620.0µg/LBromobenzene 70-130 1.3 20.0 17.0 85.083.516.720.0µg/LBromochloromethane 70-130 1.7 20.0 16.2 81.079.015.820.0µg/LBromodichloromethane 70-130 2.5 20.0 Page 3 of 12Date:03/14/2023 01:10 PM Page 42 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30650QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30648 LCS-V30648 LCSD-V30648Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 16.1 80.578.515.720.0µg/LBromoform 70-130 2.5 20.0 16.0 80.077.015.420.0µg/LBromomethane 60-140 3.8 20.0 17.4 87.086.517.320.0µg/Ln-Butylbenzene 70-130 0.5 20.0 16.1 80.579.515.920.0µg/Lsec-Butyl benzene 70-130 1.2 20.0 15.7 78.575.015.020.0µg/Ltert-Butyl benzene 70-130 4.5 20.0 16.1 80.589.517.920.0µg/LCarbon Tetrachloride 70-130 10.5 20.0 15.8 79.080.516.120.0µg/LChlorobenzene 70-130 1.8 20.0 16.4 82.080.016.020.0µg/LChlorodibromomethane 70-130 2.4 20.0 15.9 79.577.015.420.0µg/LChloroethane 60-140 3.1 20.0 16.3 81.579.515.920.0µg/LChloroform 70-130 2.4 20.0 16.5 82.578.515.720.0µg/LChloromethane 60-140 4.9 20.0 14.9 74.580.016.020.0µg/L2-Chlorotoluene 70-130 7.1 20.0 14.7 73.573.514.720.0µg/L4-Chlorotoluene 70-130 0.0 20.0 16.9 84.577.515.520.0µg/L1,2-Dibromo-3-Chloropropane 70-130 8.6 20.0 16.5 82.577.515.520.0µg/L1,2-Dibromoethane 70-130 6.2 20.0 16.9 84.583.516.720.0µg/LDibromomethane 70-130 1.1 20.0 16.5 82.580.516.120.0µg/L1,2-Dichlorobenzene 70-130 2.4 20.0 16.2 81.080.516.120.0µg/L1,3-Dichlorobenzene 70-130 0.6 20.0 14.8 74.074.514.920.0µg/L1,4-Dichlorobenzene 70-130 0.6 20.0 15.9 79.579.515.920.0µg/LDichlorodifluoromethane 60-140 0.0 20.0 16.2 81.078.515.720.0µg/L1,1-Dichloroethane 70-130 3.1 20.0 14.2 71.073.514.720.0µg/L1,2-Dichloroethane 70-130 3.4 20.0 15.1 75.574.014.820.0µg/L1,1-Dichloroethene 70-130 2.0 20.0 15.7 78.580.516.120.0µg/Lcis-1,2-Dichloroethene 70-130 2.5 20.0 15.8 79.077.515.520.0µg/Ltrans-1,2-Dichloroethene 70-130 1.9 20.0 16.5 82.581.016.220.0µg/L1,2-Dichloropropane 70-130 1.8 20.0 Page 4 of 12Date:03/14/2023 01:10 PM Page 43 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30650QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30648 LCS-V30648 LCSD-V30648Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 15.1 75.573.014.620.0µg/L1,3-Dichloropropane 70-130 3.3 20.0 16.2 81.079.515.920.0µg/L2,2-Dichloropropane 70-130 1.8 20.0 16.7 83.582.516.520.0µg/L1,1-Dichloropropene 70-130 1.2 20.0 16.9 84.586.517.320.0µg/Lcis-1,3-Dichloropropene 70-130 2.3 20.0 14.7 73.573.014.620.0µg/Ltrans-1,3-Dichloropropene 70-130 0.6 20.0 529 10695.0475500µg/LEthanol 60-140 10.7 20.0 14.7 73.572.514.520.0µg/LEthylbenzene 70-130 1.3 20.0 21.4 10710220.420.0µg/LHexachlorobutadiene 70-130 4.7 20.0 16.2 81.081.016.220.0µg/LDi-Isopropyl Ether (DIPE)70-130 0.0 20.0 15.3 76.575.515.120.0µg/LIsopropylbenzene 70-130 1.3 20.0 17.0 85.084.516.920.0µg/L4-Isopropyl toluene 70-130 0.5 20.0 16.1 80.573.514.720.0µg/L2-Hexanone 60-140 9.0 20.0 16.5 82.589.017.820.0µg/LMethyl Ethyl Ketone (MEK)60-140 7.5 20.0 16.0 80.084.016.820.0µg/LMethylene Chloride 70-130 4.8 20.0 15.7 78.577.515.520.0µg/LMethyl tert-butyl ether (MTBE)70-130 1.2 20.0 15.7 78.574.514.920.0µg/L4-Methyl-2-Pentanone 60-140 5.2 20.0 16.8 84.078.515.720.0µg/LNaphthalene 70-130 6.7 20.0 14.9 74.573.014.620.0µg/Ln-Propylbenzene 70-130 2.0 20.0 16.6 83.083.016.620.0µg/LStyrene 70-130 0.0 20.0 16.8 84.083.016.620.0µg/L1,1,1,2-Tetrachloroethane 70-130 1.1 20.0 14.3 71.569.0*13.820.0µg/L1,1,2,2-Tetrachloroethane 70-130 3.5 20.0 16.4 82.074.514.920.0µg/LTetrachloroethene 70-130 9.5 20.0 16.3 81.580.516.120.0µg/LToluene 70-130 1.2 20.0 18.2 91.089.517.920.0µg/L1,2,3-Trichlorobenzene 70-130 1.6 20.0 19.2 96.090.518.120.0µg/L1,2,4-Trichlorobenzene 70-130 5.8 20.0 15.4 77.077.015.420.0µg/L1,1,1-Trichloroethane 70-130 0.0 20.0 Page 5 of 12* QC Fail Date:03/14/2023 01:10 PM Page 44 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30650QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30648 LCS-V30648 LCSD-V30648Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 18.0 90.087.017.420.0µg/L1,1,2-Trichloroethane 70-130 3.3 20.0 17.0 85.082.516.520.0µg/LTrichloroethene 70-130 2.9 20.0 15.7 78.577.515.520.0µg/LTrichlorofluoromethane 60-140 1.2 20.0 13.4 67.0*64.5*12.920.0µg/L1,2,3-Trichloropropane 70-130 3.8 20.0 15.0 75.076.015.220.0µg/L1,2,4-Trimethylbenzene 70-130 1.3 20.0 15.0 75.075.015.020.0µg/L1,3,5-Trimethylbenzene 70-130 0.0 20.0 22.5 11311923.720.0µg/LVinyl Acetate 60-140 5.1 20.0 16.7 83.582.516.520.0µg/LVinyl Chloride 60-140 1.2 20.0 30.9 77.276.030.440.0µg/Lm,p-Xylene 70-130 1.6 20.0 15.4 77.076.515.320.0µg/Lo-Xylene 70-130 0.6 20.0 91.892.64-Bromofluorobenzene (S)70-130 95.495.0Dibromofluoromethane (S)70-130 81.481.41,2-Dichloroethane - d4 (S)70-130 91.290.8Toluene-d8 (S)70-130 Page 6 of 12* QC Fail Date:03/14/2023 01:10 PM Page 45 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30719QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30718 Associated Lab Samples: 90526, 90527 LRB-V30718 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 03/10/23 16:0310.0< 10.0µg/LAcetone 03/10/23 16:030.500< 0.500µg/LBenzene 03/10/23 16:030.500< 0.500µg/LBromobenzene 03/10/23 16:031.00< 1.00µg/LBromochloromethane 03/10/23 16:030.500< 0.500µg/LBromodichloromethane 03/10/23 16:035.00< 5.00µg/LBromoform 03/10/23 16:031.00< 1.00µg/LBromomethane 03/10/23 16:030.500< 0.500µg/Ln-Butylbenzene 03/10/23 16:030.500< 0.500µg/Lsec-Butyl benzene 03/10/23 16:032.00< 2.00µg/Ltert-Butyl benzene 03/10/23 16:030.500< 0.500µg/LCarbon Tetrachloride 03/10/23 16:030.500< 0.500µg/LChlorobenzene 03/10/23 16:030.500< 0.500µg/LChlorodibromomethane 03/10/23 16:031.00< 1.00µg/LChloroethane 03/10/23 16:030.500< 0.500µg/LChloroform 03/10/23 16:030.500< 0.500µg/LChloromethane 03/10/23 16:030.500< 0.500µg/L2-Chlorotoluene 03/10/23 16:030.500< 0.500µg/L4-Chlorotoluene 03/10/23 16:032.00< 2.00µg/L1,2-Dibromo-3-Chloropropane 03/10/23 16:030.500< 0.500µg/L1,2-Dibromoethane 03/10/23 16:030.500< 0.500µg/LDibromomethane 03/10/23 16:030.500< 0.500µg/L1,2-Dichlorobenzene 03/10/23 16:030.500< 0.500µg/L1,3-Dichlorobenzene 03/10/23 16:030.500< 0.500µg/L1,4-Dichlorobenzene 03/10/23 16:035.00< 5.00µg/LDichlorodifluoromethane 03/10/23 16:030.500< 0.500µg/L1,1-Dichloroethane 03/10/23 16:030.500< 0.500µg/L1,2-Dichloroethane Page 7 of 12Date:03/14/2023 01:10 PM Page 46 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30719QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30718 Associated Lab Samples: 90526, 90527 LRB-V30718 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 03/10/23 16:030.500< 0.500µg/L1,1-Dichloroethene 03/10/23 16:030.500< 0.500µg/Lcis-1,2-Dichloroethene 03/10/23 16:030.500< 0.500µg/Ltrans-1,2-Dichloroethene 03/10/23 16:030.500< 0.500µg/L1,2-Dichloropropane 03/10/23 16:030.500< 0.500µg/L1,3-Dichloropropane 03/10/23 16:032.00< 2.00µg/L2,2-Dichloropropane 03/10/23 16:030.500< 0.500µg/L1,1-Dichloropropene 03/10/23 16:030.500< 0.500µg/Lcis-1,3-Dichloropropene 03/10/23 16:030.500< 0.500µg/Ltrans-1,3-Dichloropropene 03/10/23 16:03200< 200µg/LEthanol 03/10/23 16:030.500< 0.500µg/LEthylbenzene 03/10/23 16:033.00< 3.00µg/LHexachlorobutadiene 03/10/23 16:030.500< 0.500µg/LDi-Isopropyl Ether (DIPE) 03/10/23 16:030.500< 0.500µg/LIsopropylbenzene 03/10/23 16:030.500< 0.500µg/L4-Isopropyl toluene 03/10/23 16:031.00< 1.00µg/L2-Hexanone 03/10/23 16:035.00< 5.00µg/LMethyl Ethyl Ketone (MEK) 03/10/23 16:032.00< 2.00µg/LMethylene Chloride 03/10/23 16:031.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 03/10/23 16:031.00< 1.00µg/L4-Methyl-2-Pentanone 03/10/23 16:031.00< 1.00µg/LNaphthalene 03/10/23 16:030.500< 0.500µg/Ln-Propylbenzene 03/10/23 16:030.500< 0.500µg/LStyrene 03/10/23 16:030.500< 0.500µg/L1,1,1,2-Tetrachloroethane 03/10/23 16:030.500< 0.500µg/L1,1,2,2-Tetrachloroethane 03/10/23 16:030.500< 0.500µg/LTetrachloroethene 03/10/23 16:030.500< 0.500µg/LToluene Page 8 of 12Date:03/14/2023 01:10 PM Page 47 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30719QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30718 Associated Lab Samples: 90526, 90527 LRB-V30718 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 03/10/23 16:030.500< 0.500µg/L1,2,3-Trichlorobenzene 03/10/23 16:030.500< 0.500µg/L1,2,4-Trichlorobenzene 03/10/23 16:030.500< 0.500µg/L1,1,1-Trichloroethane 03/10/23 16:030.500< 0.500µg/L1,1,2-Trichloroethane 03/10/23 16:030.500< 0.500µg/LTrichloroethene 03/10/23 16:030.500< 0.500µg/LTrichlorofluoromethane 03/10/23 16:030.500< 0.500µg/L1,2,3-Trichloropropane 03/10/23 16:030.500< 0.500µg/L1,2,4-Trimethylbenzene 03/10/23 16:030.500< 0.500µg/L1,3,5-Trimethylbenzene 03/10/23 16:035.00< 5.00µg/LVinyl Acetate 03/10/23 16:030.500< 0.500µg/LVinyl Chloride 03/10/23 16:031.00< 1.00µg/Lm,p-Xylene 03/10/23 16:030.500< 0.500µg/Lo-Xylene 03/10/23 16:034-Bromofluorobenzene (S)98.0 70-130 03/10/23 16:03Dibromofluoromethane (S)113 70-130 03/10/23 16:031,2-Dichloroethane - d4 (S)92.8 70-130 03/10/23 16:03Toluene-d8 (S)101 70-130 LCS-V30718 LCSD-V30718Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 46.4 11611546.040.0µg/LAcetone 40-160 0.8 20.0 22.0 11011122.120.0µg/LBenzene 70-130 0.4 20.0 22.8 11411523.020.0µg/LBromobenzene 70-130 0.8 20.0 24.4 12212224.320.0µg/LBromochloromethane 70-130 0.4 20.0 21.7 10911022.020.0µg/LBromodichloromethane 70-130 1.3 20.0 Page 9 of 12Date:03/14/2023 01:10 PM Page 48 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30719QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30718 LCS-V30718 LCSD-V30718Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 22.5 11311623.220.0µg/LBromoform 70-130 3.0 20.0 21.9 11011522.920.0µg/LBromomethane 60-140 4.4 20.0 24.7 12412925.720.0µg/Lsec-Butyl benzene 70-130 3.9 20.0 23.9 12012424.820.0µg/Ltert-Butyl benzene 70-130 3.6 20.0 20.7 10410621.220.0µg/LCarbon Tetrachloride 70-130 2.3 20.0 23.0 11511623.220.0µg/LChlorobenzene 70-130 0.8 20.0 23.3 11711523.020.0µg/LChlorodibromomethane 70-130 1.2 20.0 20.8 10410821.520.0µg/LChloroethane 60-140 3.3 20.0 21.4 10710921.720.0µg/LChloroform 70-130 1.3 20.0 20.5 10310921.820.0µg/LChloromethane 60-140 6.1 20.0 25.7 12911823.620.0µg/L2-Chlorotoluene 70-130 8.5 20.0 23.1 11611823.620.0µg/L4-Chlorotoluene 70-130 2.1 20.0 26.3 132*12525.020.0µg/L1,2-Dibromo-3-Chloropropane 70-130 5.0 20.0 23.2 11611523.020.0µg/L1,2-Dibromoethane 70-130 0.8 20.0 23.2 11611623.220.0µg/LDibromomethane 70-130 0.0 20.0 25.0 12512925.820.0µg/L1,2-Dichlorobenzene 70-130 3.1 20.0 25.6 12813025.920.0µg/L1,3-Dichlorobenzene 70-130 1.1 20.0 23.5 11811823.520.0µg/L1,4-Dichlorobenzene 70-130 0.0 20.0 21.6 10811322.520.0µg/LDichlorodifluoromethane 60-140 4.0 20.0 21.0 10511122.220.0µg/L1,1-Dichloroethane 70-130 5.5 20.0 19.4 97.096.519.320.0µg/L1,2-Dichloroethane 70-130 0.5 20.0 19.5 97.597.519.520.0µg/L1,1-Dichloroethene 70-130 0.0 20.0 22.6 11311522.920.0µg/Lcis-1,2-Dichloroethene 70-130 1.3 20.0 21.8 10911122.220.0µg/Ltrans-1,2-Dichloroethene 70-130 1.8 20.0 22.0 11011623.220.0µg/L1,2-Dichloropropane 70-130 5.3 20.0 22.1 11110821.620.0µg/L1,3-Dichloropropane 70-130 2.2 20.0 Page 10 of 12* QC Fail Date:03/14/2023 01:10 PM Page 49 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30719QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30718 LCS-V30718 LCSD-V30718Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.7 10410621.220.0µg/L2,2-Dichloropropane 70-130 2.3 20.0 22.2 11111322.620.0µg/L1,1-Dichloropropene 70-130 1.7 20.0 23.6 11811823.620.0µg/Lcis-1,3-Dichloropropene 70-130 0.0 20.0 20.0 10010120.220.0µg/Ltrans-1,3-Dichloropropene 70-130 0.9 20.0 670 134139696500µg/LEthanol 60-140 3.8 20.0 20.8 10410521.020.0µg/LEthylbenzene 70-130 0.9 20.0 21.9 11010921.820.0µg/LDi-Isopropyl Ether (DIPE)70-130 0.4 20.0 23.7 11912124.220.0µg/LIsopropylbenzene 70-130 2.0 20.0 26.5 133*12525.020.0µg/L4-Isopropyl toluene 70-130 5.8 20.0 21.6 10810921.720.0µg/L2-Hexanone 60-140 0.4 20.0 18.4 92.089.017.820.0µg/LMethyl Ethyl Ketone (MEK)60-140 3.3 20.0 22.4 11211322.620.0µg/LMethylene Chloride 70-130 0.8 20.0 21.2 10610721.420.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.9 20.0 21.4 10710621.120.0µg/L4-Methyl-2-Pentanone 60-140 1.4 20.0 24.3 12211923.720.0µg/LNaphthalene 70-130 2.5 20.0 23.1 11611823.620.0µg/Ln-Propylbenzene 70-130 2.1 20.0 23.8 11912124.120.0µg/LStyrene 70-130 1.2 20.0 24.0 12012024.020.0µg/L1,1,1,2-Tetrachloroethane 70-130 0.0 20.0 22.5 11311122.120.0µg/L1,1,2,2-Tetrachloroethane 70-130 1.7 20.0 22.7 11412023.920.0µg/LTetrachloroethene 70-130 5.1 20.0 21.9 11011222.420.0µg/LToluene 70-130 2.2 20.0 19.7 98.510721.420.0µg/L1,1,1-Trichloroethane 70-130 8.2 20.0 25.5 12812424.720.0µg/L1,1,2-Trichloroethane 70-130 3.1 20.0 22.7 11412224.320.0µg/LTrichloroethene 70-130 6.8 20.0 21.2 10611322.520.0µg/LTrichlorofluoromethane 60-140 5.9 20.0 21.2 10610320.620.0µg/L1,2,3-Trichloropropane 70-130 2.8 20.0 Page 11 of 12* QC Fail Date:03/14/2023 01:10 PM Page 50 of 53 Quality Control Data 23-067-0016Report No: Project Description: Client ID:Withers & Ravenel Humble's Country State QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V30719QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V30718 LCS-V30718 LCSD-V30718Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 24.1 12112124.220.0µg/L1,2,4-Trimethylbenzene 70-130 0.4 20.0 23.4 11712124.120.0µg/L1,3,5-Trimethylbenzene 70-130 2.9 20.0 26.5 133151*30.220.0µg/LVinyl Acetate 60-140 13.0 20.0 21.6 10811623.220.0µg/LVinyl Chloride 60-140 7.1 20.0 43.7 10911244.940.0µg/Lm,p-Xylene 70-130 2.7 20.0 22.4 11211522.920.0µg/Lo-Xylene 70-130 2.2 20.0 95.895.24-Bromofluorobenzene (S)70-130 108108Dibromofluoromethane (S)70-130 91.692.21,2-Dichloroethane - d4 (S)70-130 101101Toluene-d8 (S)70-130 Page 12 of 12* QC Fail Date:03/14/2023 01:10 PM Page 51 of 53 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-067-0016 Withers & Ravenel 01221 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 2.8C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:03/08/2023 16:34:16 Special precautions or instructions included? Comments: Page 52 of 53 Page 53 of 53 WithersRavenel Our People. Your Success. APPENDIX C WR’S 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.