WS-8411_37686_ CA_MRP_20230508

ENVIRONMENTAL | CIVIL | GEOTECHNICAL

MONITORING REPORT H&M TIRE SERVICE 232 N. GREENSBORO STREET LIBERTY, RANDOLPH COUNTY, NC NCDEQ INCIDENT NO. 37686 RISK CLASSIFICATION: TBD

MAY 8, 2023 NCDEQ CONTRACT NO. N122019D TASK AUTHORIZATION NO. 03 CATLIN PROJECT NO. 220292 PREPARED FOR: MS. LINDA BLALOCK NCDEQ, DWM, UST SECTION 1646 MAIL SERVICE CENTER RALEIGH, NC 27699-1646 PREPARED BY: CATLIN ENGINEERS AND SCIENTISTS 220 OLD DAIRY ROAD WILMINGTON, NC 28405 [phone]
CORPORATE LICENSURE NO. FOR ENGINEERING SERVICES C-0585
CORPORATE LICENSURE NO. FOR GEOLOGY SERVICES C-118

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023
TABLE OF CONTENTS
PAGE
1.0 SITE INFORMATION 1
2.0 EXECUTIVE SUMMARY 2
3.0 SCOPE OF SERVICES 2
4.0 SITE HISTORY AND CHARACTERIZATION 3
4.1 UST OWNER AND OPERATOR INFORMATION 3 4.2 UST INFORMATION 3 4.3 CONTAMINANT SOURCE INVENTORY 4 4.4 SITE CHARACTERISTICS 4 4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES AND LAND USE 4 4.6 RECEPTOR INFORMATION 4 4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES 5
5.0 REGIONAL AND SITE GEOLOGY AND HYDROGEOLOGY 6
5.1 SOIL AND BEDROCK 6
5.2 HYDROGEOLOGY 6
6.0 SITE ASSESSMENT INFORMATION 6
6.1 AFVR EVENT 6 6.2 GAUGING DATA 7 6.3 SAMPLING DATA 7 6.4 SUMMARY OF GROUNDWATER INFORMATION 8 6.5 EVALUATION OF ASSESSMENT INFORMATION 9
7.0 CONCLUSIONS AND RECOMMENDATIONS 10
8.0 LIMITATIONS 10
9.0 STATEMENTS AND CERTIFICATION 11
10.0 REFERENCES 11

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023
TABLES TABLE 1 SITE HISTORY – UST AND OTHER RELEASE INFORMATION
TABLE 2 PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION
TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA
TABLE 4 SUMMARY OF GROUNDWATER LABORATORY RESULTS – STANDARD
METHOD 6200B
TABLE 5 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS – STANDARD METHOD 6200B
FIGURES FIGURE 1 SITE VICINTY MAP
FIGURE 2 POTENTIAL RECEPTOR MAP
FIGURE 3 SITE MAP
FIGURE 4 GROUNDWATER ELEVATION – APRIL 4, 2023
FIGURE 5 MONITORING WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – APRIL 4, 2023

APPENDICES APPENDIX A HISTORICAL DATA
APPENDIX B SITE PHOTOGRAPHS
APPENDIX C DAILY ACTIVITIES LOG AND FIELD DATA SHEETS
APPENDIX D EMISSIONS CALCULATIONS
APPENDIX E AFVR EVENT DOCUMENTS AND FIELD NOTES
APPENDIX F LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 1 May 2023
1.0 SITE INFORMATION
Site Identification
Date: 05/08/2023 Site Risk/Priority Rank: To Be Determined
UST Number: WS-8411 Incident Number: 37686
Site Name: H&M Tire Service Facility ID No. 00-0-0000018565
Site Location: 232 N. Greensboro Street
Nearest City/Town: Liberty County: Randolph
Description of Geographical Data Point: Former UST basin
Location Method: Google Earth
Latitude (decimal degrees): 35.856179° Longitude (decimal degrees): -79.572284°
Contacts Information
UST Owner: Mr. Leslie Howard Hinshaw
Address: PO Box 1223, Liberty, NC 27298 Phone: Unknown
UST Operator: Mr. Leslie Howard Hinshaw
Address: PO Box 1223, Liberty, NC 27298 Phone: Unknown
Property Owner: Liberty Tire and Auto, Inc.
Address: PO Box 537, Liberty, NC 27298 Phone: Unknown
Property Occupant: Liberty Tire and Auto, Inc.
Address: 232 N. Greensboro Street Phone: [phone]
Consultant: CATLIN Engineers and Scientists
Address: 220 Old Dairy Rd., Wilmington, NC 28405 Phone: [phone]
Corporate Licensure No. For Engineering Services: C-0585
Corporate Geology License No.: C-118
Analytical Laboratory: Con-Test Analytical Laboratory State Certification: NC 652, NC-DW 25703
Address: 39 Spruce St., E. Longmeadow, MA 01028 Phone: [phone]
Release Information
Date Discovered: 08/23/2010
Estimated Quantity of Release: Unknown
Cause of Release: Leak in the UST system
Source of Release: UST system or associated fitting(s)
Sizes and contents of UST system(s) from which the release occurred:
• One 8,000-gallon gasoline UST
• One 8,000-gallon diesel UST
• Two 3,000-gallon gasoline USTs
• One 3,000-gallon diesel UST
• One 500-gallon waste oil UST

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 2 May 2023
2.0 EXECUTIVE SUMMARY
The H&M Tire Service site is located at 232 N. Greensboro Street, Liberty,
Randolph County, North Carolina. Six underground storage tanks (USTs) were
previously operated at the site. One 500-gallon waste oil, one 3,000-gallon diesel, one 8,000-gallon diesel, one 8,000-gallon gasoline, and two 3,000-gallon gasoline USTs were removed from the site in August 2010. A petroleum release was discovered during tank closure activities.

This report documents the latest remediation efforts and groundwater sampling event. CATLIN personnel supervised an attempted aggressive fluid vapor recovery (AFVR) event by Evo Corporation (Evo) on March 2, 2023. Due to an assumed equipment malfunction, the event was unsuccessful in recovering fluid. A calculated
0.104 pounds of petroleum vapors were emitted, equivalent to approximately 0.017
gallons of petroleum. On April 4, 2023, CATLIN personnel gauged and sampled monitoring wells MW-1, MW-3, and MW-04D. The depth to water in the shallow monitoring wells were 15.71
feet below top of casing (BTOC) (MW-1) and 15.47 feet BTOC (MW-3). The depth to
water in the deep monitoring well (MW-04D) was 15.18 feet BTOC. The groundwater samples were submitted for laboratory analysis of volatile organic compounds (VOCs) per Standard Method (SM) 6200B plus ethylene dibromide (EDB), methyl tert-butyl ether (MTBE), and diisopropyl ether (DIPE).

Several VOCs were detected in the MW-1 and MW-3 samples at concentrations greater than those established in Title 15A of the North Carolina Administrative Code, Subchapter 2L, Section .0202 Groundwater Quality Standards (2L GWQS), but below the Gross Contaminant Levels (GCL).

Contaminant concentrations have generally decreased in samples from monitoring wells MW-1 and MW-3 since the previous sampling event in July 2022 (CATLIN, 2022).
Based on the depth to water observed before and after the AFVR event, it appears
that groundwater should have been able to be recovered. Therefore, CATLIN recommends utilizing a different contractor and attempting another AFVR utilizing MW-1 and MW-3 as extraction points.
3.0 SCOPE OF SERVICES
The scope of services for this report was performed in general accordance with CATLIN proposal number 220292.03P, dated February 20, 2023. Services were authorized by the North Carolina Department of Environmental Quality’s (NCDEQ’s)
Task Authorization (TA) #03, approved on February 20, 2023, and Contract Number
N122019D.
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 3 May 2023
The approved scope of services for this Task Authorization included:
• Coordinate and supervise an AFVR event utilizing MW-1 and MW-3 as
extraction points;
• Approximately 30 days after the AFVR event, collect groundwater samples from four monitoring wells (MW-1, MW-2, MW-3, and MW-04D);
• Analyze six water samples (four monitoring well samples, one equipment
rinsate blank, and one trip blank) according to SM 6200B (including EDB, MTBE, and DIPE); and
• Prepare and submit a monitoring report summarizing the findings.

Due to an assumed equipment malfunction, the AFVR event was unsuccessful and no fluid was recovered and was shut down after 5.5 hours. During the April 2023 sampling event, monitoring well MW-2 could not be located; therefore, the well was not sampled. The remaining scope of services was conducted in accordance with
the approved TA. 4.0 SITE HISTORY AND CHARACTERIZATION The H&M Tire Service site is located at 232 N. Greensboro Street, Liberty,
Randolph County, North Carolina (Figures 1 and 2). Summarized available historical
sampling and gauging data from previous consultants are provided in Appendix A. Site photographs are presented in Appendix B. 4.1 UST OWNER AND OPERATOR INFORMATION

Mr. Leslie Howard Hinshaw previously owned the six USTs that historically operated on-site. The property was formerly used for motor vehicle retail petroleum sales. Mr. Hinshaw was unwilling to comply with the UST system standards and the site was subsequently accepted into the NCDEQ UST
Section Trust Fund Branch State Lead Program (S&ME, 2012).
Available information regarding UST owners/operators and is presented on Table 1.
4.2 UST INFORMATION
Six USTs were previously operated at the site. One 500-gallon waste oil, one 3,000-gallon diesel, one 8,000-gallon diesel, one 8,000-gallon gasoline, and two 3,000-gallon gasoline USTs were removed from the site in August 2010.
A petroleum release was discovered during tank closure activities and holes
were noted in the USTs upon removal. A strong petroleum odor was also observed in the soil beneath the removed USTs. The five larger tanks were installed in March 1975 and the 500-gallon waste oil UST was installed in March 1977 (S&ME, 2012; NCDEQ, UST Section Registered Tanks
Database).
Available UST system information is presented in Table 1 and the approximate former UST basin locations are illustrated on Figure 3.
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 4 May 2023
4.3 CONTAMINANT SOURCE INVENTORY An on-site release was discovered in August 2010 during UST removal
activities. Soil sample analytical results revealed total petroleum
hydrocarbons (TPH) above State Action Levels (S&ME, 2012). 4.4 SITE CHARACTERISTICS
The property is currently owned by Liberty Tire and Auto, Inc.; the former
structure is present and appears to be used as a vehicle maintenance garage. The parcel is comprised of the store building and garage bays, several storage sheds, a propane filling station, and gravel parking areas. One of the small structures located on the site houses one of the Town of
Liberty’s public water supply wells (SW-2); it is located on the northwest
corner of the subject site and is approximately 150 feet north of a former UST basin. 4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES
AND LAND USE
Properties in the site vicinity are mostly residences and businesses (commercial and retail). The site is bound by North Greensboro Street to the west. Residences are located to the west (across N. Greensboro Street and
the railroad tracks) and to the east of the subject site. Commercial
businesses are located to the north and south of the site. 4.6 RECEPTOR INFORMATION
Conducting a receptor survey was outside the scope of this monitoring event.
A review of historical files available on the NCDEQ Waste Management Online Database (aka Laserfiche) indicates that the last receptor survey for the H&M Tire Service site was conducted in 2012 by S&ME, Inc. (SME).
According to previous reports, water is available to surrounding properties
from the Town of Liberty. However, the Town of Liberty uses a series of water supply wells and one of these supply wells (SW-2) is located on the northwest corner of the subject site. One additional potential water supply well was identified by S&ME in 2012 and is reportedly located approximately
800 feet east of the subject site; however, the Town of Liberty confirmed an
active water account for this parcel. No surface water receptors were noted. Potential receptors are illustrated on Figure 2 and receptor information from S&ME (2012) is shown on Table 2.

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 5 May 2023
4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES The release was discovered in August 2010 during UST closure activities. A
strong petroleum odor was noted in the soil beneath the removed USTs and
holes were noted in the tanks upon removal (S&ME, 2012). Following UST removal, over-excavation of the basins was performed and approximately 1,333 tons of petroleum-impacted soil from the three former
UST basins were removed from the site. The gasoline UST basin was
located in front of the building (to the west), the diesel UST basin was located north of the building, and the waste oil UST basin was located behind the building (to the east). Soil samples representing the excavated soils were collected and analyzed, and the TPH gasoline range organics (GRO) [1,800
milligrams per kilogram (mg/kg)] and diesel range organics (DRO) (450
mg/kg) concentrations exceeded the NC Department of Environment and Natural Resources (NCDENR) Action Limits. Soil impacts at levels which exceeded the soil to groundwater (STGW) maximum soil contaminant concentrations (MSCC) remain in the former UST basins (S&ME, 2020A).

Monitoring well MW-1 was installed at the site on July 31, 2012 and was sampled at that time. Several petroleum constituents were detected at concentrations that exceeded their respective 2L GWQS but were less than GCL (S&ME, 2012).

Monitoring wells MW-2 and MW-3 were installed on April 1, 2015 and were sampled on April 6, 2015. Petroleum constituents have not been previously detected in samples from MW-2. However, laboratory analysis of samples from MW-1 and MW-3 have reported contaminant concentrations greater
than their respective 2L GWQS. Historically, VOC levels have been generally
decreasing (S&ME, 2020B). CATLIN conducted site assessment activities in June 2021 and July 2022. One deep, Type III monitoring well (MW-04D) was installed to a depth of 75
feet in June 2021. During both site visits, monitoring well MW-2 could not be located; therefore, three wells (MW-1, MW-3, and MW-04D) were sampled. No analyzed compound concentrations were detected above 2L GWQS in the samples from MW-04D. Several petroleum constituents were reported in the samples from MW-1 and MW-3 above their 2L GWQS, but below their
respective GCL. The contamination concentrations in samples from MW-1 and MW-3 generally decreased between 2019 and 2021, but those in MW-3 increased between 2021 and 2022 (CATLIN, 2021; CATLIN, 2022). Summarized available historical data from previous consultants is presented
in Appendix A.
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 6 May 2023
5.0 REGIONAL AND SITE GEOLOGY AND HYDROGEOLOGY 5.1 SOIL AND BEDROCK

As defined in the Geologic Map of North Carolina, published by the North Carolina Department of Natural Resources and Community Development (1985), the site lies within the Piedmont physiographic province.
The site is underlain by felsic metavolcanic rock within the Carolina Slate
Belt. According to the 1985 Geologic Map of North Carolina, light gray-to-greenish gray meta-dacite and meta-rhyolite flows, interbedded with other metavolcanics, meta-argillite, and metamudstone, crop out in the site vicinity.
The MW-04D well boring log indicates that clays are present to 22 feet below
land surface (BLS) at the site. Clayey sands were noted from 22 feet BLS to the termination of the boring at 75 feet BLS. Some granite was observed in the drill cuttings at around 63 feet BLS (CATLIN, 2021).
According to the US Department of Agriculture (USDA), soils at the site
consist of well-drained Georgeville-Urban land complex, with 2-10 percent slopes. The soils consist of silt loams, clay loams, clays, and loams. 5.2 HYDROGEOLOGY

Groundwater - The 2020 Visual Hydrogeologic Framework – North Carolina Hydrogeological Database did not identify sufficient boreholes near the site in order to draw a cross-section.
Surface Water – No receptors were identified within 1,500 feet of the subject site by S&ME. 6.0 SITE ASSESSMENT INFORMATION
CATLIN conducted field activities in general accordance with the approved TA and pre-prepared Health and Safety Plan (HASP). Upon arrival at the site, potential hazards were evaluated before beginning field work and their discussion is documented on a Daily Activities Log, which is included in Appendix C. Photographs of the site are included in Appendix B. Well locations and site features are shown on
Figure 3 and well construction details are presented on Table 3. 6.1 AFVR EVENT
CATLIN mobilized to the site on March 2, 2023 to supervise an attempted
AFVR event by Evo. Prior to the event, CATLIN gauged monitoring wells MW-1 and MW-3 at 14.39 feet BTOC and 15.86 feet BTOC, respectively. Light non-aqueous phase liquid (LNAPL) was not noted.
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 7 May 2023
Due to an assumed equipment malfunction, very little fluid was recovered from the monitoring wells. The event was terminated after 5.5 hours. A calculated 0.104 pounds of petroleum vapors were emitted, equivalent to
approximately 0.017 gallons of petroleum. Following shutdown, depth to
water in MW-1 and MW-3 was measured at 7.80 and 15.66 feet BTOC, respectively. Emissions calculations are presented in Appendix D. Documents and field notes relevant to the AFVR event are provided in Appendix E.
6.2 GAUGING DATA The depth to water in the shallow, Type II monitoring wells has historically ranged from 11.04 feet BTOC (MW-1) to 25.06 feet BTOC (MW-1) across the
site. Groundwater has historically been illustrated to be flowing to the east
and east-northeast (S&ME, 2020B; CATLIN, 2021). During the April 2023 event, CATLIN personnel measured depth to water using a water level indicator probe. To prevent cross contamination, the
probe and cabling were decontaminated according to the manufacturer’s
recommendations between use in each well. Gauging data were recorded on an electronic groundwater sampling form using a tablet device. Gauging procedures were performed in general accordance with NCDENR and NCDEQ Guidelines and Environmental Protection Agency (EPA) Region 4
Operating Procedures.
The depth to water in the shallow, Type II monitoring wells was measured at 15.71 feet BTOC (MW-1) and 15.47 feet BTOC (MW-3). The depth to water in the deep, Type III monitoring well (MW-04D) was measured at 15.18 feet
BTOC. The depths to water measured in all gauged wells were above their
respective screened intervals. Groundwater flow direction could not be calculated due to a scarcity of data points. Monitoring well gauging results for events conducted by CATLIN are
presented in Table 3. Depth to water is illustrated on Figure 4 and groundwater sampling forms are provided in Appendix C. 6.3 SAMPLING DATA
Following gauging, the monitoring wells were sampled in general accordance with NCDENR and NCDEQ Guidelines and EPA Region 4 Operating Procedures. Prior to obtaining representative groundwater samples, each monitoring well was purged by removing a minimum of three well volumes using a new, disposable bailer. Due to an equipment malfunction, monitoring
well groundwater field parameter data could not be measured. Copies of the groundwater sampling forms are available in Appendix C. After a minimum of three well volumes were removed (or the well was bailed dry), a groundwater sample was collected from the well and poured into
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 8 May 2023
appropriate laboratory-provided pre-preserved glassware, labeled, and placed on ice in an insulated cooler. A laboratory-provided trip blank was maintained in the cooler for the duration of the event.

An equipment rinsate blank was collected by pouring water from a new, sealed gallon of distilled water over the water level indicator probe and collected directly into laboratory-provided pre-preserved glassware. The glassware was labeled and placed on ice in an insulated cooler.

The groundwater samples, equipment rinsate blank, and laboratory-provided trip blank were submitted to Con-Test Analytical Laboratory (Certification NC 652 and NC-DW 25703) in East Longmeadow, Massachusetts, under proper chain of custody (COC) protocol and analyzed per SM 6200B (including
EDB, MTBE, and DIPE). The laboratory analytical data and COC are
included in Appendix F. 6.4 SUMMARY OF GROUNDWATER INFORMATION
Historically, samples from monitoring wells MW-1 and MW-3 have contained the highest petroleum constituent concentrations and MW-2 samples have not contained petroleum contaminant concentrations above the laboratory method detection limits. Concentrations above GCL and LNAPL have not been detected at this site. During the previous sampling event conducted by
CATLIN (July 2022), samples from MW-1 and MW-3 contained benzene, MTBE, and/or naphthalene concentrations above their respective 2L GWQS. Available historical information prepared by other consultants is included in Appendix A.
The latest groundwater sampling laboratory results for SM 6200B analysis
are summarized in Table 4. Historical results for events conducted by CATLIN are in Table 5. Monitoring well sample analytical results are illustrated on Figure 5. A copy of the complete laboratory report and COC documentation are in Appendix F.
Monitoring Wells
During the April 2023 event, three monitoring well groundwater samples (MW-1, MW-3, and MW-04D) were collected and submitted for analysis via SM 6200B (including EDB, MTBE, and DIPE). Laboratory analysis did not detect any constituents above their respective method detection limits in the sample from MW-04D. No analyte concentrations were detected above GCL
in any of the monitoring well samples. Analytical results reported the following constituents at concentrations above their 2L GWQS in samples MW-1 and MW-3:
• MW-1: benzene and naphthalene; and
• MW-3: benzene and MTBE.
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 9 May 2023
Trip Blank Equipment Rinsate Blank One equipment rinsate blank sample (labelled “EQ Rinse”) and one
laboratory-provided trip blank were submitted for analysis per SM 6200B
(including EDB, MTBE, and DIPE). An estimated (“J”-value) concentration of acetone (a common laboratory artifact) was reported in the equipment rinsate blank sample. No targeted analytes were detected in the trip blank sample.
6.5 EVALUATION OF ASSESSMENT INFORMATION

Extent of Contamination Multiple petroleum constituents were detected above their respective
2L GWQS in samples from shallow wells MW-1 and MW-3. No targeted
analytes were above the method detection limits in the sample from deep well MW-04D. A summary of monitoring well groundwater sample analytical results are illustrated on Figure 5. The plume is not horizontally delineated to the southwest, east, or northeast.

Analytical results from the current monitoring event (April 2023) indicate that contaminant concentrations have decreased in samples monitoring wells MW-1 and MW-3 since July 2022 (CATLIN, 2022).
Monitoring well MW-2 could not be located during CATLIN monitoring events,
but laboratory analysis of samples from MW-2 have historically not detected any VOCs (S&ME, 2020). Cleanup Levels Achieved

Soil – In August 2010, 1,333 tons of impacted soil were removed from the site. Confirmatory soil samples collected following excavation activities contained TPH GRO (1,800 mg/kg) and DRO (450 mg/kg) concentrations, which exceeded the State Action Limits. Based on the confirmations soil
samples, impacts at concentrations which exceed STGW MSCC remain in the former UST basins.
Groundwater – Groundwater contaminant concentrations are above 2L GWQS, but below GCL at the site.

LNAPL – LNAPL was not measured during this monitoring period and has not been historically observed at the site.
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 10 May 2023
7.0 CONCLUSIONS AND RECOMMENDATIONS Conclusions

Groundwater monitoring findings for this period are summarized below:
• An AFVR event was attempted utilizing monitoring wells MW-1 and MW-3 as extraction points. Due to an assumed equipment malfunction, no fluid was
recovered and the event ended after 5.5 hours. A calculated 0.104 pounds of
petroleum vapors were emitted, equivalent to approximately 0.017 gallons of petroleum.
• Approximately one month after the attempted AFVR event, three monitoring
wells (MW-1, MW-3, and MW-04D) were sampled.
• Monitoring well MW-2 was not located and therefore was not sampled.
• No analyzed compound concentrations were detected above the laboratory
method detection limits in the sample from MW-04D.
• Benzene, MTBE, and/or naphthalene were reported at concentrations above their 2L GWQS in the samples from MW-1 and MW-3, but were below GCL.
• The contaminant concentrations in samples from MW-1 and MW-3 have
decreased since July 2022. Recommendations
Based on the depth to water observed before and after the AFVR event, it appears
that groundwater should have been able to be recovered. Therefore, CATLIN recommends utilizing a different contractor and attempting another AFVR utilizing MW-1 and MW-3 as extraction points.
8.0 LIMITATIONS The groundwater samples analyzed as part of this investigation only provide isolated data points and may not represent conditions at every location in the project area. Analyses and conclusions of this report, being based on interpolation between data
points at the project area, may not be completely representative of all site
conditions. Conclusions and recommendations of this investigation and report are based on the best available data in an effort to comply with current regulatory requirements.
NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 11 May 2023
9.0 STATEMENTS AND CERTIFICATION

1 Enter the date the monitoring report was due. May 5, 2023
Will this report be submitted after the established due date?
YES
This report was submitted on May 8, 2023, within the 10-day grace period.
2 Was any required information from the above template missing from this
report?
YES

No cross sections are provided; adequate subsurface information is not available.
Groundwater flow direction was not calculated due to an insufficient number of data
points.
3 If applicable, will any of the proposed attenuation milestones under the schedule
approved in the Corrective Action Plan not be met?
NA
No CAP has been submitted for this site.
4 Does any known or suspected source zone soil contamination or free product
remain outside of the assessed area that could be inhibiting natural attenuation?
NO
5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source?
NO
6 Certification:
I, Sean J. O’Neil, a Licensed Engineer for CATLIN Engineers and Scientists, do certify that the
information contained in this report is correct and accurate to the best of my knowledge.

CATLIN Engineers and Scientists is licensed to practice engineering in North Carolina.
The certification number of the company or corporation is C-0585.

10.0 REFERENCES

CATLIN Engineers and Scientists, Monitoring Report, H&M Tire Service, 232 N.
Greensboro Street, Liberty, Randolph County, North Carolina, NCDEQ
Incident No. 37686, Risk Classification: TBD, July 16, 2021.
CATLIN Engineers and Scientists, Monitoring Report, H&M Tire Service, 232 N.
Greensboro Street, Liberty, Randolph County, North Carolina, NCDEQ
Incident No. 37686, Risk Classification: TBD, August 23, 2022.
NCDEQ, UST Section, North Carolina Department of Environmental Quality,
Division of Waste Management, Corrective Action Guidelines, January 19,
2021.

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 12 May 2023
NCDENR, UST Section, North Carolina Department of Environment and Natural Resources, Division of Waste Management, Guidelines for Sampling, December 1, 2013.
NCDEQ, UST Section, North Carolina Department of Environmental Quality,
Division of Waste Management, Guidelines for Site Checks, Tank Closure,
and Initial Response and Abatement, January 19, 2021.
NCDEQ, Division of Waste Management, online document portal (Laserfiche), page 32, 33 and 37 of document titled “RA-
828_5656_M_RP_19920625_19900411”.
NCDEQ, UST Section Registered Tanks Database, https://deq.nc.gov/about/divisions/waste-management/ust/databases.
North Carolina Department of Natural Resources and Community Development, Geological Map of North Carolina, 1985.
S&ME, Inc., Phase I Limited Site Assessment, NCDENR Incident No.37686, 232 North Greensboro Street, Liberty, Randolph County, NC, December 21, 2012.
S&ME, Inc., Report of Groundwater Sampling, H&M Tire Service/Incident #37686, Liberty, Randolph County, NC, January 14, 2020(A).
S&ME, Inc., Report of Groundwater Sampling, H&M Tire Service/Incident #37686, Liberty, Randolph County, NC, June 9, 2020(B).
U.S. Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey, https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and
Ecosystem Support Division, Athens Georgia, Operating Procedure – Field
Equipment Cleaning and Decontamination at the FEC, Striggow, B., U.S. EPA Report No. SESDPROC-206-R3, Effective Date December 18, 2015.
U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Groundwater Level and Well Depth
Measurement, Striggow, B., U.S. EPA Report No. SESDPROC-105-R3, Effective Date November 3, 2016.
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Groundwater Sampling, Striggow, B., U.S. EPA Report No. SESDPROC-
301-R4, Effective Date April 26, 2017.
U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – In Situ
Water Quality Monitoring, Chief, Field Services Branch, U.S. EPA Report No. SESDPROC-111-R4, Effective Date March 14, 2018.

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023

TABLES
Page 1 of 1
TABLE 1
SITE HISTORY — UST AND OTHER RELEASE INFORMATION
Incident Name and No.: H&M Tire Service - 37686
UST ID
Number
Name of
Owner/
Operator
Last
Contents
Previous
Contents
Capacity
(gal)
Construction
Details
Tank
Dimensions
(inches)
Installation
Date
(mm/dd/yy)
Date
Removed
(mm/dd/yy)
1 Gasoline Gasoline 8,000 Steel 96 x 255 03/28/75 08/23/10
2 Gasoline Gasoline 3,000 Steel 64 x 216 03/28/75 08/23/10
3 Gasoline Gasoline 3,000 Steel 64 x 216 03/28/75 08/23/10
4 Diesel Diesel 8,000 Steel 96 x 255 03/28/75 08/23/10
5 Diesel Diesel 3,000 Steel 64 x 216 03/28/75 08/23/10
6 Oil (Waste)Oil (Waste)500 Steel 48 x 126 03/27/77 08/23/10
Incident
Number
Material
Released
Date Release
Discovered
(mm/dd/yy)
37686 Gasoline and
Diesel 08/23/10
Information obtained from S&ME (2012).
Description of the Release
Petroleum contamination discovered in soils during UST excavation in August 2010.
Mr. Leslie
Howard
Hinshaw
Dates of Ownership/
Operation
(year)
1977 - 2010
1975 - 2010
1975 - 2010
1975 - 2010
1975 - 2010
1975 - 2010
NCDEQ; 37686_H&M Tire Service; T1_Site History
CATLIN Project No. 220292
CATLIN Engineers and Scientists
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Page 1 of 1
TABLE 2
Incident Name and No.: H&M Tire Service - 37686
Well ID Property Address
Randolph
County
PIN Number
Owner Name
(Last, First MI)
Owner Mailing
Address Well Use
Distance/
Direction
from
Source Area
(ft.)
Comment
SW-2
234 North Greensboro
St.
Liberty, NC 27298
7728110824 Town of Liberty
239 S. Fayetteville St.
PO Box 1006
Liberty, NC 27298
Municipal
System 150 / N
Suspect 205 East Highfill Ave.
Liberty, NC 27298 8736171288 King, Oscar Jr.PO Box 1607
Liberty, NC 27298 Unknown 800 / E
Suspected well. Address has
an active water account as
of 2012.
Receptor
ID Location Contact
Distance/
Direction from
Source Area (ft.)
Intermittent
Stream Northeast of Site —>600 / NE
Information obtained from S&ME (2012).
ft. = feet
PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION
Description
Intermittent stream based on the USGS Topographic Map.
NCDEQ; 37686_H&M Tire Service; T2_WSW & Receptor Info
CATLIN Project No. 220292
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Page 1 of 1
TABLE 3
WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA
Incident Name and No.: H&M Tire Service - 37686
Well ID
Date
Installed
(mm/dd/yy)*
Date Water
Level
Measured
(mm/dd/yy)
Well
Diameter
(inches)
Well
Casing
Depth
(ft. BLS)*
Screened
Interval
(x to y ft.
BLS)*
Bottom
of Well
(ft. BLS)*
Top of
Casing
Elevation*
(ft.)
Free-Phase
Product
Thickness**
Depth to
Groundwater
from Top of
Casing (ft.)
Groundwater
Elevation (ft.)Comments
06/15/21 NMT 11.04 88.11 Ɨ
07/01/22 NMT 15.18 83.97 Ɨ
03/02/23 NMT 14.39 84.76 Pre-AFVR
03/02/23 NMT 7.80 91.35 Post-AFVR
04/04/23 NMT 15.71 83.44 Ɨ
MW-2 04/01/15 NM 2.0 19 19-34 34 100.00 CNL
06/15/21 NMT 11.82 87.88 Ɨ
07/01/22 NMT 16.42 83.28 Ɨ
03/02/23 NMT 15.86 83.84 Pre-AFVR
03/02/23 NMT 13.66 86.04 Post-AFVR
04/04/23 NMT 15.47 84.23 Ɨ
06/15/21 NMT 11.60 86.19 Type III; Ɨ
07/01/22 NMT 16.14 81.65 Type III; Ɨ
04/04/23 NMT 15.18 82.61 Type III; Ɨ
ft. BLS = feet Below Land Surface
NM = Not Measured
NMT = No Measurable Thickness
CNL = Could Not Locate
AFVR = Aggressive Fluid Vapor Recovery
Ɨ = Water level was measured above the screened interval.
* = Data for wells installed prior to 2021 obtained from S&ME (2020).
** = if free-phase product is present in a well, ground water elevation should be calculated by : [top of casing elevation - depth to water]+ [free product thickness x
specific gravity of the fuel type]
MW-4D 06/10/21
04/01/15MW-3
70 70-75 75 97.79
99.703318-3318
MW-1
2.0
2.0
2.0
NM
99.153419-341907/31/12
NCDEQ; 37686_H&M Tire Service; T3_Well Construction & Gauging
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TABLE 4
SUMMARY OF GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B
Incident Name and No.: H&M Tire Service - 37686
Date
Collected
(mm/dd/yy)
04/04/23 33 J 1.7 0.18 J 0.50 0.37 J 2.4 0.91 0.28 J 3.9 R 6.1 L 0.29 J 0.24 J 0.20 J <0.84 J*BMDL
04/04/23 <20 42 <1.5 <1.3 13 <2.2 <1.5 <1.3 680 R <3.8 <1.2 <2.2 6.0 <9.9*BMDL
04/04/23 <2.0 <0.18 <0.15 <0.13 <0.20 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.22 <0.20 <0.73 BMDL
04/04/23 <2.0 <0.18 <0.15 <0.13 <0.20 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.22 <0.20 <0.73 BMDL
04/04/23 5.8 J <0.18 <0.15 <0.13 <0.20 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.22 <0.20 <0.73 BMDL
All results in micrograms per liter (µg/L).
EQ = Equipment
BMDL = Below Method Detection Limit (refer to analytical report for a complete list of analytes and detection limits)
Bold results indicate concentrations above 2L Groundwater Quality Standard (2L GWQS).
GCL = Gross Contaminant Level
2L GWQS = NCAC T15A:02L Groundwater Quality Standards
< = Less than method detection limit
* = The value represents the sum of the reported practical quantitation limit of one analyte and the detected concentration of the other analyte.
J = Detected, but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated concentration (CLP J-Flag)
L = Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits. Reported value for this compound is likely to be biased on the low side
(L-04 Flag).
28,500
400
50,000
500
Varies
Varies
30,500
70
11,700
25
20,000
20
6,000
6
26,100
70
260,000
600
80,000
600
GCL (µg/L)
2L GWQS (µg/L)
6,000,000
6,000
5,000
1
5,900
70
8,800
70
70,000
70 Toluene1,2,4-TrimethylbenzeneMW-1
MW-3
MW-04D
EQ Rinse
Trip Blank
R = Laboratory fortified blank duplicate RPD is outside of control limits. Reduced precision is anticipated for any reported value for this compound (R-05 Flag).Total XylenesAll Other SM 6200B AnalytesNaphthalene n-PropylbenzeneContaminant of
Concern
AcetoneBenzenen-Butylbenzenesec-ButylbenzeneDiisopropyl Ether (DIPE)Well/
Sample ID
EthylbenzeneIsopropylbenzene (Cumene)p-Isopropyltoluene (p-Cymene)Methyl tert-Butyl Ether (MTBE)NCDEQ; 37686_H&M Tire Service; T4_GW Results
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TABLE 5
SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B
Incident Name and No.: H&M Tire Service - 37686
Date
Collected
(mm/dd/yy)
06/15/21 <2.4 3.7 0.79 0.89 <0.10 <0.090 0.54 4.6 2.3 0.45 J 8.7 18 0.97 0.80 0.84 0.20 J 1.49 J BMDL
07/01/22 <2.0 3.5 0.71 0.81 <0.12 <0.12 0.45 J 7.2 1.5 0.44 J 5.8 17 L 0.96 0.62 0.69 0.42 J 3.1 BMDL
04/04/23 33 J 1.7 0.18 J 0.50 <0.13 <0.14 0.37 J 2.4 0.91 0.28 J 3.9 R 6.1 L 0.29 J 0.24 J 0.20 J <0.15 <0.84 J*BMDL
06/15/21 <2.4 7.3 <0.14 <0.10 0.12 J 0.25 J 3.9 <0.090 0.18 J <0.090 200 0.34 J,L <0.080 <0.11 0.53 <0.10 <0.90 BMDL
07/01/22 <10 83 <0.76 <0.55 <0.61 <0.59 <0.64 <1.1 2.0 J <0.49 1,000 3.8 L <0.43 <1.1 10 <0.57 <12.1*BMDL
04/04/23 <20 42 <1.5 <1.3 <1.3 <1.4 13 <2.2 <1.5 <1.3 680 R <3.8 <1.2 <2.2 6.0 <1.5 <9.9*BMDL
06/15/21 3.3 J <0.13 <0.14 <0.10 <0.10 <0.090 <0.15 <0.090 <0.10 <0.090 <0.17 <0.15 <0.080 <0.11 <0.10 <0.10 <0.27 BMDL
07/01/22 <2.0 <0.20 <0.15 <0.11 <0.12 <0.12 <0.13 <0.21 <0.11 <0.097 <0.17 0.74 L <0.086 <0.22 <0.20 <0.11 <0.69 BMDL
04/04/23 <2.0 <0.18 <0.15 <0.13 <0.13 <0.14 <0.20 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.22 <0.20 <0.15 <0.73 BMDL
All results in micrograms per liter (µg/L).
BMDL = Below Method Detection Limit (refer to analytical report for a complete list of analytes and detection limits)
Bold results indicate concentrations above 2L Groundwater Quality Standard (2L GWQS).
GCL = Gross Contaminant Level
2L GWQS = NCAC T15A:02L Groundwater Quality Standards
< = Less than method detection limit
* = The value represents the sum of the reported practical quantitation limit of one analyte and the detected concentration of the other analyte.
J = Detected, but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated concentration (CLP J-Flag)
L = Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits. Reported value for this compound is likely to be biased on the low side (L-04 Flag).
R = Laboratory fortified blank duplicate RPD is outside of control limits. Reduced precision is anticipated for any reported value for this compound (R-05 Flag).
MW-04D
MW-3
MW-1
70,000
701,2-DichlorobenzeneWell/
Sample
ID
Contaminant of
Concern
AcetoneBenzenen-Butylbenzenesec-Butylbenzene1,3-DichlorobenzeneDiisopropyl Ether (DIPE)20,000
20
61,500
200
GCL (µg/L)
2L GWQS (µg/L)
6,000,000
6,000
5,000
1
5,900
70
8,800
70 Ethylbenzene80,000
600 Isopropylbenzene (Cumene)p-Isopropyltoluene (p-Cymene)24,100
400
50,000
500Total Xylenes30,500
70
Varies
Varies
11,700
25
20,000
20
6,000
6
26,100
70
260,000
600
28,500
400 All Other SM 6200B AnalytesMethyl tert-Butyl Ether (MTBE)Naphthalene n-PropylbenzeneToluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNCDEQ; 37686_H&M Tire Service; T5_Historical GW
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FIGURES
FIGUREPROJECTTITLE
1H & M TIRE SERVICE232 N GREENSBORO STLIBERTY, NC SITE VICINITY MAP
SITE LOCATION
N GREENSBORO STS W A N N A N O A A V E
Copyright:© 2013 National Geographic Society, i-cubed
2,000 0 2,000 4,0001,000
Feet
³
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY37686220292MAY 2023 AS SHOWN KMC/SJO
FIGUREPROJECTTITLE
2H & M TIRE SERVICE232 N GREENSBORO STLIBERTY, NC POTENTIAL RECEPTOR MAP
!(P !(W
SITE LOCATIONN GREENSBORO STS W A N N A N O A A V E
1 ,5 0 0 FE ET RADIUS
500FE E T RADIUS
SW-2 SUSPECT
INTERMITTENT STREAM
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
500 0 500 1,000250
Feet
³
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY37686220292MAY 2023 AS SHOWN KMC/SJO
NOTE: Well locations were obtained from previous reports prepared by other consultants and are approximate.
LEGEND
Active Potable
Water Supply Well!(P
Active Non-PotableWater Supply Well!(W
FIGUREPROJECTTITLE
3H & M TIRE SERVICE232 N GREENSBORO STLIBERTY, NC SITE MAP
!(P
!>
!>
!>
!(>
!(N GREENSBORO STSW-2
MW-2(CNL)MW-3
MW-1
MW-04D
FORMER DIESELUST BASIN
FORMER WASTE OIL UST BASIN
FORMER GASOLINE UST BASIN
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
40 0 40 8020
Feet
³
NOTES: 1. Well and former basin locations were obtained from previousreports prepared by other consultants and are approximate.2. CNL = Could Not Locate
Parcel Boundary
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY37686220292MAY 2023 AS SHOWN KMC/SJO
LEGEND
Monitoring Well(Type II)!>
Monitoring Well
(Type III)!(>
Active PotableWater Supply Well!(P
Approximate Location of Former UST Basin
FIGUREPROJECTTITLE
4H & M TIRE SERVICE232 N GREENSBORO STLIBERTY, NC
GROUNDWATER ELEVATION –APRIL 4, 2023
!(P
!>
!>
!(>
!(N GREENSBORO STSW-2
MW-3(84.23)
MW-1(83.44)
MW-04D(82.61)
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
40 0 40 8020
Feet
³
NOTE: Well and former basin locations were obtained from previousreports prepared by other consultants and are approximate.
Parcel Boundary
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY37686220292MAY 2023 AS SHOWN KMC/SJO
LEGEND
Gauged Monitoring Well (Type II)!>
Gauged Monitoring Well (Type III)!(>
Active PotableWater Supply Well!(P
Approximate Location of Former UST Basin
Groundwater Elevation (Feet)(##)
FIGUREPROJECTTITLE
5H & M TIRE SERVICE232 N GREENSBORO STLIBERTY, NC
MONITORING WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –APRIL 4, 2023
!(P
!>
!>
!(>
!(N GREENSBORO STSW-2
MW-3
MW-1
MW-04D*
ESTIMATED HORIZONTALEXTENT OF 2L GWQS EXCEEDANCES
???
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
40 0 40 8020
Feet
³
NOTES:1. Well and former basin locations were obtained from previousreports prepared by other consultants and are approximate.2. * = Deep well; well not used for contouring purposes
Parcel Boundary
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY37686220292MAY 2023 AS SHOWN KMC/SJO
LEGEND
Sampled Monitoring Well (Type II)!>
Sampled Monitoring Well (Type III)!(>
Active PotableWater Supply Well!(P
Approximate Location of Former UST Basin
Incident Name and No.: H&M Tire Service - 37686
Well/Sample ID
DateCollected
MW-1 04/04/23 1.7 3.9 R 6.1 LMW-3 04/04/23 42 680 R <3.8MW-04D 04/04/23 <0.18 <0.17 <0.38
All results in micrograms per liter (µg/L).Bold results are above 2L GWQS. Refer to Table 4 for all results and notes.
SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B
Contaminant of Concern
20,000 20 6,0006GCL (µg/L)2L GWQS (µg/L)5,0001 Methyl tert-Butyl Ether (MTBE)Naphthalene Benzene

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023

APPENDICES

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023

APPENDIX A HISTORICAL DATA
0 g
v
0
ci
--------------~--~
.WONWE'6;,
,~":~~~ ~~~13~:~:2~:'-----------~_.o_w_wl~s
NWW-1~~~p~-10 ~~~~
WW-10 1 p x_ SERVICE -------. 0 t c-,EW"'-r4'. WSC-10~ ~~-ICG~T:Es:.w~~10~-------------J Yr-\'\ L ·SW87;19 ~--\ ~SEB'0-~1:0-
SWC-10 GTSEN-10
WASH
RACK
.W06W26l
WOB-10
,W.0SW5.6'
AS SHOWN
LEGEND
-'-DISPENSER LINE
-----LIMITS OF EXCAVATION
• SAMPLE LOCATION
• 'b\:lL_
bit..c:\,J. Ge.\"'"'W S-to-(,W1
• G?< ~ S -to -G\0 M <;C~
0 50 - ----APPROX. SCALE, ft.
•
•
APPENDIX A HISTORICAL DATA (URS, 2010)
NCDEQ; 37686_H&M Tire Service
CATLIN Project No. 220292
CATLIN Engineers and Scientists
May 2023
APPENDIX A
HISTORICAL DATA (S&ME, 2012)
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APPENDIX A HISTORICAL DATA (S&ME, 2012)
NCDEQ; 37686_H&M Tire Service CATLIN
Project No. 220292
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Compounds of
Concern
Sample Date
6,000 1 70 4,000 600 70 20 6 70 70 25 70 70 20 200 6 600 400 400 4,000 500
6,000,000 5,000 70,000 4,000,000 84,500 25,000 20,000 6,000 6,900 30,000 11,700 8,500 70,000 20,000 61,500 6,000 260,000 28,500 25,000 4,000,000 85,500
08/10/12 ---2,600 280 ---320 <25 12,000 77 <25 29 <25 <25 ------<25 <25 4,300 160 48 74 J 1,800
04/06/15 ---179 10.5 ---125 5.5 298 43.1 <2.0 16.2 NR <2.0 ------<2.0 <2.0 16.5 72.8 19.5 NR 57.6
06/23/17 ---85 2.4 J ---280 15 72 74 6.8 29 5.6 1.6 J ------<2.5 <2.5 210 170 35 <25 530
01/08/19 ---34 1.6 ---150 8.5 19 53 3.5 20 0.94 J 1.6 ------<1.0 <1.0 43 42 11 <10 107
12/11/19 ---16 1.2 <100 7.2 3.8 10 27 1.2 1.3 0.80 J 1.3 0.34 J <1.0 <1.0 <1.0 1.1 1.4 <1.0 <10 1.1
04/06/15 ---< 0.50 < 0.50 ---< 0.50 < 0.50 < 0.50 <2.0 < 0.50 < 0.50 < 0.50 < 0.50 ------< 0.50 < 0.50 < 0.50 < 0.50 < 0.50 NR < 1.5
06/23/17 ---< 0.50 < 0.50 ---< 0.50 < 0.50 < 0.50 < 0.50 < 0.50 <1.0 < 0.50 <2.0 ------< 0.50 < 0.50 < 0.50 < 0.50 < 0.50 <5.0 < 1.5
01/08/19 ---< 0.50 < 0.50 ---< 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 <5.0 < 1.5
12/11/19 ---< 0.50 < 0.50 <50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 <5.0 < 1.5
04/06/15 ---41.2 12.7 ---< 0.50 < 0.50 391 < 2.0 < 0.50 < 0.50 < 0.50 < 0.50 ------1.3 0.58 < 0.50 0.71 < 0.5 NR 0.90
06/23/17 ---90 3.0 ---290 15 79 84 6.5 30 5.8 1.6 J ------<2.5 <2.5 220 190 38 12 J 550
01/08/19 ---< 0.50 < 0.50 ---< 0.50 < 0.50 0.81 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 ------< 0.50 < 0.50 < 0.50 < 0.50 < 0.50 <5.0 < 1.5
12/11/19 ---6.3 2.3 <50 < 0.50 0.17 J 86 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 0.16 J 0.29 J 0.13 J < 0.50 0.92 < 0.50 <5.0 0.81
P-1 05/15/20 <1,000 120 36 14,000 <10 <10 1,600 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 7.0 J <10 <100 10
P-2 05/15/20 15 J 0.31 J <0.50 28,000 <0.50 <0.50 0.77 <0.50 0.82 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.85 0.30 J <0.50 2.6 J 0.56 J
12/11/19 ---< 0.50 < 0.50 ---< 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 <5.0 < 1.5
5/15/2020*6.0 J <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.5 <0.5 1.1 <0.50 <0.50 <0.50 <5.0 <1.5
NOTES:
Analytes that are not shown were not detected Value Concentration exceeds the 2L Standards
Data presented in micrograms per liter or mg/L Value Concentration exceeds the Gross Contamination Levels
2L Standard: North Carolina Groundwater Quality Standards: 15A NCAC 2L.0202
J- Detected but below the Reporting Limit; result is an estimated concentration * = The field blank collected on 5/15/2020 was collected at MW-2
--- = Less than detection limit or not reported
Field Blank EthanolAcetoneUST Facility ID # 0-00-0000018565
TABLE 2
S&ME Project No. 4305-17-100D232 North Greensboro Street, Liberty Randolph County, North CarolinaH&M Tire Service (Incident No.: 37686, UST #: WS-8411)
SUMMARY OF GROUNDWATER SAMPLING RESULTS
MW-2
MW-3
2L Standard
Gross Contamination Level 1,4-Dichlorobenzene1,3-DichlorobenzeneSample ID
MW-1 Styrene1,2-DichlorobenzeneRevision Date: 6-04-2020
Total XylenesMethyl tert-butyl etherDiisopropyl ethern-Propylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneTolueneEthylbenzeneIsopropylbenzenen-ButylbenzeneP-Isopropyltoluene2-Butanonesec-ButylbenzeneVolatile Organic Compounds by Standard Method 6200B or equivalent
BenzenePage 1 of 1
APPENDIX A HISTORICAL DATA (S&ME, 2020)
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APPENDIX B SITE PHOTOGRAPHS
APPENDIX B SITE PHOTOGRAPHS – MARCH 2, 2023
View of vac truck used for the AFVR event.
View of connection set up for the wells. (MW-3 pictured)
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APPENDIX B SITE PHOTOGRAPHS – APRIL 4, 2023
View of MW-1, facing south.
View of MW-3, facing south.
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APPENDIX B SITE PHOTOGRAPHS – APRIL 4, 2023
View of MW-04D, facing south.
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APPENDIX C
DAILY ACTIVITIES LOG
AND FIELD DATA SHEETS
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-1 18.29
15.71 2.985
NMT 8.955
34 14.925
2
Method:Bailer Purge Start Time:14:18
Required Bails for 3 Well Volumes:38 Purge Stop Time:14:50
Required Bails for 5 Well Volumes:63 Was Well Purged Dry?No
Number of Bails Removed:21 Sample Time:14:50
Groundwater Removed (gal):5.0
Equipment Used:
Time
pH
(Standard Units)
ORP
(mV)
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
Temperature
(Co)
Laboratory:Con-Test Analysis:
Well Data
Well ID
Depth to Product (ft below TOC)
Total Well Depth (ft)
Purging Information Information
Volume of Groundwater in Well
Well Diameter (inches)
GROUNDWATER SAMPLING FORM
Water Column (ft below TOC)
One Well Volume (gal)
Three Well Volumes (gal)
Five Well Volumes (gal)
6200B
Laboratory Analysis Information
Geochemical Parameters
Depth to Water (ft below TOC)
5x well volume. low turbidity
gray
Aqua Troll 600
Turbidity and Additional
Sampling Notes
Monitoring Well Information
Nate Newman
4/4/2023
H&M Tire Service
220292
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-2 34.00
5.549
16.646
34 27.744
2
Method:Bailer Purge Start Time:
Required Bails for 3 Well Volumes:70 Purge Stop Time:
Required Bails for 5 Well Volumes:116 Was Well Purged Dry?No
Number of Bails Removed:21 Sample Time:
Groundwater Removed (gal):5.0
Equipment Used:
Time
pH
(Standard Units)
ORP
(mV)
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
Temperature
(Co)
Laboratory:Con-Test Analysis:6200B
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Aqua Troll 600
Turbidity and Additional
Sampling Notes
CNL
Laboratory Analysis Information
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
H&M Tire Service Nate Newman
220292 4/4/2023
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-3 17.53
15.47 2.861
NMT 8.583
33 14.304
2
Method:Bailer Purge Start Time:14:52
Required Bails for 3 Well Volumes:36 Purge Stop Time:15:12
Required Bails for 5 Well Volumes:60 Was Well Purged Dry?No
Number of Bails Removed:21 Sample Time:15:12
Groundwater Removed (gal):5.0
Equipment Used:
Time
pH
(Standard Units)
ORP
(mV)
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
Temperature
(Co)
Laboratory:Con-Test Analysis:6200B
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Aqua Troll 600
Turbidity and Additional
Sampling Notes
high turbidity light brown .
5x volume
Laboratory Analysis Information
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
H&M Tire Service Nate Newman
220292 4/4/2023
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
CATLIN PROJECT:SAMPLED BY:
CATLIN PROJECT # :DATE SAMPLED:
CLIENT'S NAME:
MW-04D 59.82
15.18 9.763
NMT 29.288
75 48.813
2
Method:Bailer Purge Start Time:13:08
Required Bails for 3 Well Volumes:123 Purge Stop Time:14:10
Required Bails for 5 Well Volumes:204 Was Well Purged Dry?No
Number of Bails Removed:21 Sample Time:14:10
Groundwater Removed (gal):5.0
Equipment Used:
Time
pH
(Standard Units)
ORP
(mV)
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
Temperature
(Co)
Laboratory:Con-Test Analysis:6200B
Depth to Product (ft below TOC)Three Well Volumes (gal)
Total Well Depth (ft)Five Well Volumes (gal)
Well Diameter (inches)
Purging Information Information
Geochemical Parameters
Aqua Troll 600
Turbidity and Additional
Sampling Notes
clear
Laboratory Analysis Information
Depth to Water (ft below TOC)One Well Volume (gal)
GROUNDWATER SAMPLING FORM
H&M Tire Service Nate Newman
220292 4/4/2023
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023

APPENDIX D EMISSIONS CALCULATIONS
Page 1 of 2
DESCRIBE SOIL IN THE SATURATED ZONE: Unknown
IDENTIFY THE WELL AND THE I.D. OF EACH WELL USED FOR AFVR: MW-1 and MW-3PROVIDE BLOWER SPECIFICATIONS OF THE VACUUM TRUCK (cfm @ in Hg): 20" Hg
DRY STANDARD CUBIC FEET PER MINUTE (DSCFM) AIR FLOW CALCULATIONS (Qstd)
Time Meas. Vacuum AVP Velocity Pipe ID Temp.RH Bwsw Bws Qstd flow
(in Hg)(in Hg)(ft/min)(in)(°F)(%)(grainsH2O/lbAir)(% v/v)(DSCFM)
8:00 22.00 7.92 201 6 50 100 54.95090189 0.989 0.4598:15 22.00 7.92 145 6 59 100 76.69247817 0.992 0.2348:30 22.00 7.92 196 6 73 100 126.0829166 0.995 0.188
8:45 22.00 7.92 136 6 83 100 177.3539941 0.996 0.0919:00 22.00 7.92 119 6 110 100 427.0537469 0.999 0.032
9:15 22.00 7.92 106 6 125 100 685.8489594 0.999 0.0179:30 22.00 7.92 94 6 126 100 707.8295464 0.999 0.015
9:45 21.00 8.92 72 6 144 100 1258.040642 1.000 0.00610:00 21.00 8.92 85 6 148 100 1434.942737 1.000 0.006
10:30 21.00 8.92 94 6 157 100 1947.964645 1.000 0.00511:00 20.00 9.92 209 6 158 100 2017.418348 1.000 0.01111:30 20.00 9.92 240 6 165 100 2599.342406 1.000 0.010
12:00 20.00 9.92 273 6 154 100 1756.131401 1.000 0.01612:30 20.00 9.92 248 6 158 100 2017.418348 1.000 0.013
1:00 20.00 9.92 445 6 145 100 1299.858966 1.000 0.0371:30 20.00 9.92 398 6 145 100 1299.858966 1.000 0.033
NOTESAVP = Absolute Vacuum Pressure
Qstd = Flow at DSCFM
Measured Vacuum = The level of vacuum being applied (should be recorded from the vacuum truck tank in inches of Hg)
Velocity = The rate at which air flow is measured at the blower discharge piping (anemometer or pitot tube)
Pipe ID = The inside diameter of the blower discharge piping (from the vacuum truck)Temperature = The temperature of the air stream exiting the blower discharge piping (dry bulb temp., in °F)
RH = The % relative humidity of the air stream exiting the blower discharge piping
Bwsw = Humidity Ratio (i.e. grains of water per lb of dry air, derived from the Psychrometric chart or calculator (dry bulb temp. vs. RH)
Bws = water vapor % by volume
EQUATIONS
AVP = Standard Pressure (29.92 in Hg) - Measured Vacuum
Bws = (Bwsw/18 lb-mole H2O)/[(1/28.84 lb-mole dry air) + (Bwsw/18 lb-mole H2O)]
Qstd = (1-Water Vapor) * velocity * [PI * (diameter/24)2] * [528°R/(Temp + 460)] * (AVP/29.92)
INDICATE AVERAGE HYDRAULIC CONDUCTIVITY (if known): Unknown
AGGRESSIVE FLUID VAPOR RECOVERY (AFVR) EVENT
SITE NAME: H&M Tire Service, March 2, 2023
INCIDENT NUMBER: 37686
AVERAGE DEPTH TO GROUNDWATER: 15 feet Below Top of Casin
COORDINATES USED FOR HUMIDITY RATIO CALCUALTIONS (Bwsw): 35.856179 degrees Lat and -79.572284 degrees Long
SDC Group, Inc.; AFVR_field_calc_3-2-23\Calc
AFVR Calculations
CATLIN Engineers and Scientists
May 2023
Page 2 of 2
EMISSION CALCULATIONS
Elapsed QstdTimeFlow PPMmeasured PPMwet PPMdry K PPMconc Cc:m Cc PMRc PMRg PMR
(min)(DSCFM)(ppm)(#C - gas)(mg/dsm3)(lb/dscf)(lb/hr)(lb/hr)(lb)
0 0.459 36.5 37 3250 4 13000 6487 0.000 0.011 0.013 0.000150.234 53.3 53 6603 4 26411 13178 0.001 0.012 0.013 0.003
30 0.188 93.4 93 18961 4 75846 37844 0.002 0.027 0.031 0.008450.091 90.7 91 25864 4 103456 51621 0.003 0.018 0.020 0.005
60 0.032 100.6 101 68935 4 275739 137583 0.009 0.016 0.019 0.005750.017 88.3 88 97120 4 388478 193836 0.012 0.012 0.014 0.004
90 0.015 103.8 104 117823 4 471294 235157 0.015 0.013 0.015 0.004
105 0.006 79.5 80 160325 4 641298 319983 0.020 0.007 0.009 0.0021200.006 108.7 109 250021 4 1000082 499002 0.031 0.012 0.014 0.003
150 0.005 54.5 55 170153 4 680612 339599 0.021 0.006 0.007 0.0041800.011 62.8 63 203055 4 812218 405265 0.025 0.016 0.019 0.010
210 0.010 61.0 61 254109 4 1016437 507163 0.032 0.018 0.021 0.0112400.016 25.1 25 70649 4 282597 141005 0.009 0.009 0.010 0.005
270 0.013 40.3 40 130304 4 521216 260067 0.016 0.013 0.015 0.0073000.037 51.8 52 107934 4 431735 215419 0.013 0.030 0.034 0.0173300.033 59.4 59 123770 4 495078 247025 0.015 0.030 0.035 0.018
Total emissions in pounds = 0.104
Total emissions in gallons = 0.017
NOTES
To convert from pounds of emissions to gallons of emissions, divide the total pounds by 6.25 pounds/gallon.PPMmeasured = Actual measurements (ppm) taken with a OVA, PID, or TVA at the blower discharge piping
PPMwet = "wet" concentration
PPMdry = "dry" concentration
K = Number of carbons in calibration gas: (Methane K = 1, or Propane K = 3, or Isobutene K = 4, or Hexane K = 6)
PPMc= PPMv, Volumetric concentration of VOC emissions as carbon, dry basis at STP
Cc:m = mg/dsm3, mass concentration of VOC emissions as carbon
Mc = 12.01 mg/mg-mole, molecular weight of carbon
K3 = 24.07 dsm3/106 mg-mole, mass to volume conversion factor at STP
Cc = lb/dcsf, mass concentration of VOC emissions as carbon, dry basis at STP
PMRc = lb/hr, pollutant mass removal rate of VOCs as carbon
PMRg = lb/hr, pollutant mass removal rate of VOCs as gasoline
PMR = lb, pollutant mass removal of VOCs as gasoline
EQUATIONS
PPMwet = PPMmeasured
PPMdry = (PPMwet)/(1-Bws)
PPMconc = (PPMdry)(K)
Cc:m = (PPMconc)(Mc / K3)
Cc = (Cc:m)(62.43x10-9 lb-m3/mg-ft3)
PMRc = (Cc)(Qstd)(60 min/hr)
PMRg = (PMRc)(Mg/Mcg)
PMR = (PMRg)(#minutes/60)
SDC Group, Inc.; AFVR_field_calc_3-2-23\Calc
AFVR Calculations
CATLIN Engineers and Scientists
May 2023

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023

APPENDIX E AFVR EVENT DOCUMENTS
AND FIELD NOTES
11evo CORPORATION
1703 Vargrave Street• Winston-Salem, NC 27'107
336. 725.5844 • fax: [phone] • www.evocorp.net
CUSTOMER: Catlin Engineers & Scientists P.O. Box 10279 Wilmington, NC 28404-0279
SHIP VIA ...
SHIP DATE
DUE DATE. 4/1/23
TERMS Net 30 Days
INVOICE
INVOICE NUMBER 23128
INVOICE DATE 3/2/23
PAGE, 1
PROJECT: NCDEQ-Former H&M Tire 232 N. Greensboro St. Liberty, NC
CUST ID .. CATLIN PO NUMBER,. .. 230220-3 PO DATE., ... ,
OUR ORDER NO ..... 2/20/23
SALESPERSON ... . 032309
·/ 0
" "� = )-"
.•• . . • D�SGR!Rif0N • :. 011/ANilll?i\ !JNCT • �RICE NET
Mobilization
Vacuum Truck with Operator
1.00 Flat
6.75 Hour
350.000
145.000
350.00
978.75
Please Remit to:
Evo Corporation
7535 Styers Ferry Rd.
Clemmons, NC 27012
SUBTOTAL
TAX
PAYMENT
TOTAL:
1,328.75
1,328.75

NCDEQ; 37686_ H&M Tire Service CATLIN Engineers and Scientists
CATLIN Project No. 220292 May 2023

APPENDIX F
LABORATORY ANALYTICAL REPORT AND
CHAIN OF CUSTODY DOCUMENT

39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
April 11, 2023
Sean O’Neil
CATLIN Engineers & Scientists
1044 Washington Street
Raleigh, NC 27605
Project Location: Libert, NC
Client Job Number:
Project Number: 220292
Laboratory Work Order Number: 23D0415
Enclosed are results of analyses for samples as received by the laboratory on April 5, 2023. If you have any questions concerning
this report, please feel free to contact me.
Sincerely,
Kaitlyn A. Feliciano
Project Manager
Page 1 of 27
Table of Contents
Table of Contents
Sample Summary 3
Hits Only Report 4
Case Narrative 6
Sample Results 7
23D0415-01 7
23D0415-02 9
23D0415-03 11
23D0415-04 13
23D0415-05 15
Sample Preparation Information 17
QC Data 18
Volatile Organic Compounds by GC/MS 18
B336483 18
Flag/Qualifier Summary 22
Certifications 23
Chain of Custody/Sample Receipt 25
Page 2 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
4/11/2023
CATLIN Engineers & Scientists
1044 Washington Street
Raleigh, NC 27605
ATTN: Sean O’Neil
220292
23D0415
The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
Libert, NC
230404-6
Trip Blank 23D0415-01 Ground Water SM21-23 6200B
EQ Rinse 23D0415-02 Ground Water SM21-23 6200B
MW-1 23D0415-03 Ground Water SM21-23 6200B
MW-3 23D0415-04 Ground Water SM21-23 6200B
MW-04D 23D0415-05 Ground Water SM21-23 6200B
[TOC_1]Sample Summary[TOC]
Page 3 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
[TOC_1]Hits Only Report[TOC]EXECUTIVE SUMMARY
Client ID:Lab ID:23D0415-01Trip Blank
No Results Detected
Client ID:Lab ID:23D0415-05MW-04D
No Results Detected
Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary
section of this report. Users must review this report in its entirety to determine data usability and assessment.
Page 4 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
EXECUTIVE SUMMARY
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
23D0415-02EQ Rinse
DL
Acetone 5.8 50 g/L SM21-23 6200BJ2.0
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
23D0415-03MW-1
DL
1,2,4-Trimethylbenzene 0.20 0.50 g/L SM21-23 6200BJ0.20
Acetone 33 50 g/L SM21-23 6200BJ2.0
Benzene 1.7 0.50 g/L SM21-23 6200B0.18
Diisopropyl Ether (DIPE)0.37 0.50 g/L SM21-23 6200BJ0.20
Ethylbenzene 2.4 0.50 g/L SM21-23 6200B0.22
Isopropylbenzene (Cumene)0.91 0.50 g/L SM21-23 6200B0.15
Methyl tert-Butyl Ether (MTBE)3.9 0.50 g/L SM21-23 6200BR-05 0.17
Naphthalene 6.1 0.50 g/L SM21-23 6200BL-04 0.38
n-Butylbenzene 0.18 0.50 g/L SM21-23 6200BJ0.15
n-Propylbenzene 0.29 0.50 g/L SM21-23 6200BJ0.12
o-Xylene 0.35 0.50 g/L SM21-23 6200BJ0.24
p-Isopropyltoluene (p-Cymene)0.28 0.50 g/L SM21-23 6200BJ0.13
sec-Butylbenzene 0.50 0.50 g/L SM21-23 6200B0.13
Toluene 0.24 0.50 g/L SM21-23 6200BJ0.22
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
23D0415-04MW-3
DL
1,2,4-Trimethylbenzene 6.0 5.0 g/L SM21-23 6200B2.0
Benzene 42 5.0 g/L SM21-23 6200B1.8
Diisopropyl Ether (DIPE)13 5.0 g/L SM21-23 6200B2.0
Methyl tert-Butyl Ether (MTBE)680 5.0 g/L SM21-23 6200BR-05 1.7
o-Xylene 5.0 5.0 g/L SM21-23 6200B2.4
Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary
section of this report. Users must review this report in its entirety to determine data usability and assessment.
Page 5 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
For method 6200B elevated reporting limits for sample 23D0415-04 due to high concentrations of target compounds.
[TOC_1]Case Narrative[TOC]
SM21-23 6200B
Qualifications:
Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits. Reported value for this
compound is likely to be biased on the low side.
Analyte & Samples(s) Qualified:
L-04
1,2,3-Trichlorobenzene
23D0415-01[Trip Blank], 23D0415-02[EQ Rinse], 23D0415-03[MW-1], 23D0415-04[MW-3], 23D0415-05[MW-04D], B336483-BLK1, B336483-BS1, B336483-BSD1
Naphthalene
23D0415-01[Trip Blank], 23D0415-02[EQ Rinse], 23D0415-03[MW-1], 23D0415-04[MW-3], 23D0415-05[MW-04D], B336483-BLK1, B336483-BS1, B336483-BSD1
Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but the other is within limits. RPD
between the two LFB/LCS results is within method specified criteria.
Analyte & Samples(s) Qualified:
L-07
1,2,4-Trichlorobenzene
B336483-BSD1
Acetone
B336483-BSD1
Laboratory fortified blank duplicate RPD is outside of control limits. Reduced precision is anticipated for any reported value for this
compound.
Analyte & Samples(s) Qualified:
R-05
1,2,3-Trichloropropane
23D0415-01[Trip Blank], 23D0415-02[EQ Rinse], 23D0415-03[MW-1], 23D0415-04[MW-3], 23D0415-05[MW-04D], B336483-BLK1, B336483-BS1, B336483-BSD1
Methyl tert-Butyl Ether (MTBE)
23D0415-01[Trip Blank], 23D0415-02[EQ Rinse], 23D0415-03[MW-1], 23D0415-04[MW-3], 23D0415-05[MW-04D], B336483-BLK1, B336483-BS1, B336483-BSD1
trans-1,2-Dichloroethylene
23D0415-01[Trip Blank], 23D0415-02[EQ Rinse], 23D0415-03[MW-1], 23D0415-04[MW-3], 23D0415-05[MW-04D], B336483-BLK1, B336483-BS1, B336483-BSD1
Elevated reporting limit due to high concentration of target compounds.
Analyte & Samples(s) Qualified:
RL-11
23D0415-04[MW-3]
The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Meghan E. Kelley
Reporting Specialist
Page 6 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-01
Field Sample #: Trip Blank
Sample Matrix: Ground Water
Sampled: 4/4/2023 00:00
[TOC_2]23D0415-01[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 4/8/23 4:07 MFFg/L2.0 4/7/23SM21-23 6200B1Acetone
ND 0.50 4/8/23 4:07 MFFg/L0.18 4/7/23SM21-23 6200B1Benzene
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B1Bromobenzene
ND 0.50 4/8/23 4:07 MFFg/L0.28 4/7/23SM21-23 6200B1Bromochloromethane
ND 0.50 4/8/23 4:07 MFFg/L0.16 4/7/23SM21-23 6200B1Bromodichloromethane
ND 0.50 4/8/23 4:07 MFFg/L0.41 4/7/23SM21-23 6200B1Bromoform
ND 2.0 4/8/23 4:07 MFFg/L1.3 4/7/23SM21-23 6200B1Bromomethane
ND 5.0 4/8/23 4:07 MFFg/L1.7 4/7/23SM21-23 6200B12-Butanone (MEK)
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B1n-Butylbenzene
ND 0.50 4/8/23 4:07 MFFg/L0.13 4/7/23SM21-23 6200B1sec-Butylbenzene
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B1tert-Butylbenzene
ND 0.50 4/8/23 4:07 MFFg/L0.16 4/7/23SM21-23 6200B1Carbon Tetrachloride
ND 0.50 4/8/23 4:07 MFFg/L0.12 4/7/23SM21-23 6200B1Chlorobenzene
ND 50 4/8/23 4:07 MFFg/L20 4/7/23SM21-23 6200B1Ethanol
ND 0.50 4/8/23 4:07 MFFg/L0.20 4/7/23SM21-23 6200B1Chlorodibromomethane
ND 0.50 4/8/23 4:07 MFFg/L0.34 4/7/23SM21-23 6200B1Chloroethane
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B1Chloroform
ND 0.60 4/8/23 4:07 MFFg/L0.50 4/7/23SM21-23 6200B1Chloromethane
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B12-Chlorotoluene
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B14-Chlorotoluene
ND 0.50 4/8/23 4:07 MFFg/L0.16 4/7/23SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 4/8/23 4:07 MFFg/L0.13 4/7/23SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 4/8/23 4:07 MFFg/L0.13 4/7/23SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 4/8/23 4:07 MFFg/L0.16 4/7/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethane
ND 0.50 4/8/23 4:07 MFFg/L0.30 4/7/23SM21-23 6200B11,2-Dichloroethane
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethylene
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 4/8/23 4:07 MFFg/L0.17 4/7/23SM21-23 6200B1R-05trans-1,2-Dichloroethylene
ND 0.50 4/8/23 4:07 MFFg/L0.19 4/7/23SM21-23 6200B11,2-Dichloropropane
ND 0.50 4/8/23 4:07 MFFg/L0.12 4/7/23SM21-23 6200B11,3-Dichloropropane
ND 0.50 4/8/23 4:07 MFFg/L0.35 4/7/23SM21-23 6200B12,2-Dichloropropane
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B11,1-Dichloropropene
ND 0.50 4/8/23 4:07 MFFg/L0.16 4/7/23SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 4/8/23 4:07 MFFg/L0.20 4/7/23SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 4/8/23 4:07 MFFg/L0.22 4/7/23SM21-23 6200B1Ethylbenzene
ND 5.0 4/8/23 4:07 MFFg/L1.2 4/7/23SM21-23 6200B12-Hexanone (MBK)
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 4/8/23 4:07 MFFg/L0.13 4/7/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 4/8/23 4:07 MFFg/L0.17 4/7/23SM21-23 6200B1R-05Methyl tert-Butyl Ether (MTBE)
ND 5.0 4/8/23 4:07 MFFg/L0.18 4/7/23SM21-23 6200B1Methylene Chloride
ND 5.0 4/8/23 4:07 MFFg/L1.3 4/7/23SM21-23 6200B14-Methyl-2-pentanone (MIBK)
[TOC_1]Sample Results[TOC]
Page 7 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-01
Field Sample #: Trip Blank
Sample Matrix: Ground Water
Sampled: 4/4/2023 00:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 4/8/23 4:07 MFFg/L0.38 4/7/23SM21-23 6200B1L-04Naphthalene
ND 0.50 4/8/23 4:07 MFFg/L0.12 4/7/23SM21-23 6200B1n-Propylbenzene
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B1Styrene
ND 0.50 4/8/23 4:07 MFFg/L0.14 4/7/23SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 4/8/23 4:07 MFFg/L0.17 4/7/23SM21-23 6200B1Tetrachloroethylene
ND 0.50 4/8/23 4:07 MFFg/L0.22 4/7/23SM21-23 6200B1Toluene
ND 1.0 4/8/23 4:07 MFFg/L0.34 4/7/23SM21-23 6200B1L-041,2,3-Trichlorobenzene
ND 1.0 4/8/23 4:07 MFFg/L0.30 4/7/23SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 4/8/23 4:07 MFFg/L0.19 4/7/23SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 4/8/23 4:07 MFFg/L0.17 4/7/23SM21-23 6200B1Trichloroethylene
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 4/8/23 4:07 MFFg/L0.28 4/7/23SM21-23 6200B1R-051,2,3-Trichloropropane
ND 0.50 4/8/23 4:07 MFFg/L0.20 4/7/23SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 4/8/23 4:07 MFFg/L0.15 4/7/23SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 4/8/23 4:07 MFFg/L1.7 4/7/23SM21-23 6200B1Vinyl Acetate
ND 0.50 4/8/23 4:07 MFFg/L0.24 4/7/23SM21-23 6200B1Vinyl Chloride
ND 1.0 4/8/23 4:07 MFFg/L0.49 4/7/23SM21-23 6200B1m+p Xylene
ND 0.50 4/8/23 4:07 MFFg/L0.24 4/7/23SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 98.6 4/8/23 4:0770-130
Toluene-d8 98.1 4/8/23 4:0770-130
4-Bromofluorobenzene 94.0 4/8/23 4:0770-130
Page 8 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-02
Field Sample #: EQ Rinse
Sample Matrix: Ground Water
Sampled: 4/4/2023 15:20
[TOC_2]23D0415-02[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
5.8 50 4/8/23 6:24 MFFg/L2.0 4/7/23SM21-23 6200B1JAcetone
ND 0.50 4/8/23 6:24 MFFg/L0.18 4/7/23SM21-23 6200B1Benzene
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B1Bromobenzene
ND 0.50 4/8/23 6:24 MFFg/L0.28 4/7/23SM21-23 6200B1Bromochloromethane
ND 0.50 4/8/23 6:24 MFFg/L0.16 4/7/23SM21-23 6200B1Bromodichloromethane
ND 0.50 4/8/23 6:24 MFFg/L0.41 4/7/23SM21-23 6200B1Bromoform
ND 2.0 4/8/23 6:24 MFFg/L1.3 4/7/23SM21-23 6200B1Bromomethane
ND 5.0 4/8/23 6:24 MFFg/L1.7 4/7/23SM21-23 6200B12-Butanone (MEK)
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B1n-Butylbenzene
ND 0.50 4/8/23 6:24 MFFg/L0.13 4/7/23SM21-23 6200B1sec-Butylbenzene
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B1tert-Butylbenzene
ND 0.50 4/8/23 6:24 MFFg/L0.16 4/7/23SM21-23 6200B1Carbon Tetrachloride
ND 0.50 4/8/23 6:24 MFFg/L0.12 4/7/23SM21-23 6200B1Chlorobenzene
ND 50 4/8/23 6:24 MFFg/L20 4/7/23SM21-23 6200B1Ethanol
ND 0.50 4/8/23 6:24 MFFg/L0.20 4/7/23SM21-23 6200B1Chlorodibromomethane
ND 0.50 4/8/23 6:24 MFFg/L0.34 4/7/23SM21-23 6200B1Chloroethane
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B1Chloroform
ND 0.60 4/8/23 6:24 MFFg/L0.50 4/7/23SM21-23 6200B1Chloromethane
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B12-Chlorotoluene
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B14-Chlorotoluene
ND 0.50 4/8/23 6:24 MFFg/L0.16 4/7/23SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 4/8/23 6:24 MFFg/L0.13 4/7/23SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 4/8/23 6:24 MFFg/L0.13 4/7/23SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 4/8/23 6:24 MFFg/L0.16 4/7/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethane
ND 0.50 4/8/23 6:24 MFFg/L0.30 4/7/23SM21-23 6200B11,2-Dichloroethane
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethylene
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 4/8/23 6:24 MFFg/L0.17 4/7/23SM21-23 6200B1R-05trans-1,2-Dichloroethylene
ND 0.50 4/8/23 6:24 MFFg/L0.19 4/7/23SM21-23 6200B11,2-Dichloropropane
ND 0.50 4/8/23 6:24 MFFg/L0.12 4/7/23SM21-23 6200B11,3-Dichloropropane
ND 0.50 4/8/23 6:24 MFFg/L0.35 4/7/23SM21-23 6200B12,2-Dichloropropane
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B11,1-Dichloropropene
ND 0.50 4/8/23 6:24 MFFg/L0.16 4/7/23SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 4/8/23 6:24 MFFg/L0.20 4/7/23SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 4/8/23 6:24 MFFg/L0.22 4/7/23SM21-23 6200B1Ethylbenzene
ND 5.0 4/8/23 6:24 MFFg/L1.2 4/7/23SM21-23 6200B12-Hexanone (MBK)
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 4/8/23 6:24 MFFg/L0.13 4/7/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 4/8/23 6:24 MFFg/L0.17 4/7/23SM21-23 6200B1R-05Methyl tert-Butyl Ether (MTBE)
ND 5.0 4/8/23 6:24 MFFg/L0.18 4/7/23SM21-23 6200B1Methylene Chloride
ND 5.0 4/8/23 6:24 MFFg/L1.3 4/7/23SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 9 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-02
Field Sample #: EQ Rinse
Sample Matrix: Ground Water
Sampled: 4/4/2023 15:20
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 4/8/23 6:24 MFFg/L0.38 4/7/23SM21-23 6200B1L-04Naphthalene
ND 0.50 4/8/23 6:24 MFFg/L0.12 4/7/23SM21-23 6200B1n-Propylbenzene
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B1Styrene
ND 0.50 4/8/23 6:24 MFFg/L0.14 4/7/23SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 4/8/23 6:24 MFFg/L0.17 4/7/23SM21-23 6200B1Tetrachloroethylene
ND 0.50 4/8/23 6:24 MFFg/L0.22 4/7/23SM21-23 6200B1Toluene
ND 1.0 4/8/23 6:24 MFFg/L0.34 4/7/23SM21-23 6200B1L-041,2,3-Trichlorobenzene
ND 1.0 4/8/23 6:24 MFFg/L0.30 4/7/23SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 4/8/23 6:24 MFFg/L0.19 4/7/23SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 4/8/23 6:24 MFFg/L0.17 4/7/23SM21-23 6200B1Trichloroethylene
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 4/8/23 6:24 MFFg/L0.28 4/7/23SM21-23 6200B1R-051,2,3-Trichloropropane
ND 0.50 4/8/23 6:24 MFFg/L0.20 4/7/23SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 4/8/23 6:24 MFFg/L0.15 4/7/23SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 4/8/23 6:24 MFFg/L1.7 4/7/23SM21-23 6200B1Vinyl Acetate
ND 0.50 4/8/23 6:24 MFFg/L0.24 4/7/23SM21-23 6200B1Vinyl Chloride
ND 1.0 4/8/23 6:24 MFFg/L0.49 4/7/23SM21-23 6200B1m+p Xylene
ND 0.50 4/8/23 6:24 MFFg/L0.24 4/7/23SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 101 4/8/23 6:2470-130
Toluene-d8 98.3 4/8/23 6:2470-130
4-Bromofluorobenzene 92.1 4/8/23 6:2470-130
Page 10 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-03
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 4/4/2023 14:50
[TOC_2]23D0415-03[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
33 50 4/8/23 7:46 MFFg/L2.0 4/7/23SM21-23 6200B1JAcetone
1.7 0.50 4/8/23 7:46 MFFg/L0.18 4/7/23SM21-23 6200B1Benzene
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B1Bromobenzene
ND 0.50 4/8/23 7:46 MFFg/L0.28 4/7/23SM21-23 6200B1Bromochloromethane
ND 0.50 4/8/23 7:46 MFFg/L0.16 4/7/23SM21-23 6200B1Bromodichloromethane
ND 0.50 4/8/23 7:46 MFFg/L0.41 4/7/23SM21-23 6200B1Bromoform
ND 2.0 4/8/23 7:46 MFFg/L1.3 4/7/23SM21-23 6200B1Bromomethane
ND 5.0 4/8/23 7:46 MFFg/L1.7 4/7/23SM21-23 6200B12-Butanone (MEK)
0.18 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B1Jn-Butylbenzene
0.50 0.50 4/8/23 7:46 MFFg/L0.13 4/7/23SM21-23 6200B1sec-Butylbenzene
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B1tert-Butylbenzene
ND 0.50 4/8/23 7:46 MFFg/L0.16 4/7/23SM21-23 6200B1Carbon Tetrachloride
ND 0.50 4/8/23 7:46 MFFg/L0.12 4/7/23SM21-23 6200B1Chlorobenzene
ND 50 4/8/23 7:46 MFFg/L20 4/7/23SM21-23 6200B1Ethanol
ND 0.50 4/8/23 7:46 MFFg/L0.20 4/7/23SM21-23 6200B1Chlorodibromomethane
ND 0.50 4/8/23 7:46 MFFg/L0.34 4/7/23SM21-23 6200B1Chloroethane
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B1Chloroform
ND 0.60 4/8/23 7:46 MFFg/L0.50 4/7/23SM21-23 6200B1Chloromethane
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B12-Chlorotoluene
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B14-Chlorotoluene
ND 0.50 4/8/23 7:46 MFFg/L0.16 4/7/23SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 4/8/23 7:46 MFFg/L0.13 4/7/23SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 4/8/23 7:46 MFFg/L0.13 4/7/23SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 4/8/23 7:46 MFFg/L0.16 4/7/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethane
ND 0.50 4/8/23 7:46 MFFg/L0.30 4/7/23SM21-23 6200B11,2-Dichloroethane
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethylene
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 4/8/23 7:46 MFFg/L0.17 4/7/23SM21-23 6200B1R-05trans-1,2-Dichloroethylene
ND 0.50 4/8/23 7:46 MFFg/L0.19 4/7/23SM21-23 6200B11,2-Dichloropropane
ND 0.50 4/8/23 7:46 MFFg/L0.12 4/7/23SM21-23 6200B11,3-Dichloropropane
ND 0.50 4/8/23 7:46 MFFg/L0.35 4/7/23SM21-23 6200B12,2-Dichloropropane
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B11,1-Dichloropropene
ND 0.50 4/8/23 7:46 MFFg/L0.16 4/7/23SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B1trans-1,3-Dichloropropene
0.37 0.50 4/8/23 7:46 MFFg/L0.20 4/7/23SM21-23 6200B1JDiisopropyl Ether (DIPE)
2.4 0.50 4/8/23 7:46 MFFg/L0.22 4/7/23SM21-23 6200B1Ethylbenzene
ND 5.0 4/8/23 7:46 MFFg/L1.2 4/7/23SM21-23 6200B12-Hexanone (MBK)
0.91 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B1Isopropylbenzene (Cumene)
0.28 0.50 4/8/23 7:46 MFFg/L0.13 4/7/23SM21-23 6200B1Jp-Isopropyltoluene (p-Cymene)
3.9 0.50 4/8/23 7:46 MFFg/L0.17 4/7/23SM21-23 6200B1R-05Methyl tert-Butyl Ether (MTBE)
ND 5.0 4/8/23 7:46 MFFg/L0.18 4/7/23SM21-23 6200B1Methylene Chloride
ND 5.0 4/8/23 7:46 MFFg/L1.3 4/7/23SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 11 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-03
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 4/4/2023 14:50
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
6.1 0.50 4/8/23 7:46 MFFg/L0.38 4/7/23SM21-23 6200B1L-04Naphthalene
0.29 0.50 4/8/23 7:46 MFFg/L0.12 4/7/23SM21-23 6200B1Jn-Propylbenzene
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B1Styrene
ND 0.50 4/8/23 7:46 MFFg/L0.14 4/7/23SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 4/8/23 7:46 MFFg/L0.17 4/7/23SM21-23 6200B1Tetrachloroethylene
0.24 0.50 4/8/23 7:46 MFFg/L0.22 4/7/23SM21-23 6200B1JToluene
ND 1.0 4/8/23 7:46 MFFg/L0.34 4/7/23SM21-23 6200B1L-041,2,3-Trichlorobenzene
ND 1.0 4/8/23 7:46 MFFg/L0.30 4/7/23SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 4/8/23 7:46 MFFg/L0.19 4/7/23SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 4/8/23 7:46 MFFg/L0.17 4/7/23SM21-23 6200B1Trichloroethylene
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 4/8/23 7:46 MFFg/L0.28 4/7/23SM21-23 6200B1R-051,2,3-Trichloropropane
0.20 0.50 4/8/23 7:46 MFFg/L0.20 4/7/23SM21-23 6200B1J1,2,4-Trimethylbenzene
ND 0.50 4/8/23 7:46 MFFg/L0.15 4/7/23SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 4/8/23 7:46 MFFg/L1.7 4/7/23SM21-23 6200B1Vinyl Acetate
ND 0.50 4/8/23 7:46 MFFg/L0.24 4/7/23SM21-23 6200B1Vinyl Chloride
ND 1.0 4/8/23 7:46 MFFg/L0.49 4/7/23SM21-23 6200B1m+p Xylene
0.35 0.50 4/8/23 7:46 MFFg/L0.24 4/7/23SM21-23 6200B1Jo-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 97.5 4/8/23 7:4670-130
Toluene-d8 98.9 4/8/23 7:4670-130
4-Bromofluorobenzene 94.0 4/8/23 7:4670-130
Page 12 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-04
Field Sample #: MW-3
Sample Matrix: Ground Water
Sampled: 4/4/2023 15:12
[TOC_2]23D0415-04[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 500 4/8/23 7:18 MFFg/L20 4/7/23SM21-23 6200B10Acetone
42 5.0 4/8/23 7:18 MFFg/L1.8 4/7/23SM21-23 6200B10Benzene
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B10Bromobenzene
ND 5.0 4/8/23 7:18 MFFg/L2.8 4/7/23SM21-23 6200B10Bromochloromethane
ND 5.0 4/8/23 7:18 MFFg/L1.6 4/7/23SM21-23 6200B10Bromodichloromethane
ND 5.0 4/8/23 7:18 MFFg/L4.1 4/7/23SM21-23 6200B10Bromoform
ND 20 4/8/23 7:18 MFFg/L13 4/7/23SM21-23 6200B10Bromomethane
ND 50 4/8/23 7:18 MFFg/L17 4/7/23SM21-23 6200B102-Butanone (MEK)
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B10n-Butylbenzene
ND 5.0 4/8/23 7:18 MFFg/L1.3 4/7/23SM21-23 6200B10sec-Butylbenzene
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B10tert-Butylbenzene
ND 5.0 4/8/23 7:18 MFFg/L1.6 4/7/23SM21-23 6200B10Carbon Tetrachloride
ND 5.0 4/8/23 7:18 MFFg/L1.2 4/7/23SM21-23 6200B10Chlorobenzene
ND 500 4/8/23 7:18 MFFg/L200 4/7/23SM21-23 6200B10Ethanol
ND 5.0 4/8/23 7:18 MFFg/L2.0 4/7/23SM21-23 6200B10Chlorodibromomethane
ND 5.0 4/8/23 7:18 MFFg/L3.4 4/7/23SM21-23 6200B10Chloroethane
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B10Chloroform
ND 6.0 4/8/23 7:18 MFFg/L5.0 4/7/23SM21-23 6200B10Chloromethane
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B102-Chlorotoluene
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B104-Chlorotoluene
ND 5.0 4/8/23 7:18 MFFg/L1.6 4/7/23SM21-23 6200B101,2-Dibromoethane (EDB)
ND 5.0 4/8/23 7:18 MFFg/L1.3 4/7/23SM21-23 6200B101,2-Dichlorobenzene
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B101,3-Dichlorobenzene
ND 5.0 4/8/23 7:18 MFFg/L1.3 4/7/23SM21-23 6200B101,4-Dichlorobenzene
ND 5.0 4/8/23 7:18 MFFg/L1.6 4/7/23SM21-23 6200B10Dichlorodifluoromethane (Freon 12)
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B101,1-Dichloroethane
ND 5.0 4/8/23 7:18 MFFg/L3.0 4/7/23SM21-23 6200B101,2-Dichloroethane
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B101,1-Dichloroethylene
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B10cis-1,2-Dichloroethylene
ND 5.0 4/8/23 7:18 MFFg/L1.7 4/7/23SM21-23 6200B10R-05trans-1,2-Dichloroethylene
ND 5.0 4/8/23 7:18 MFFg/L1.9 4/7/23SM21-23 6200B101,2-Dichloropropane
ND 5.0 4/8/23 7:18 MFFg/L1.2 4/7/23SM21-23 6200B101,3-Dichloropropane
ND 5.0 4/8/23 7:18 MFFg/L3.5 4/7/23SM21-23 6200B102,2-Dichloropropane
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B101,1-Dichloropropene
ND 5.0 4/8/23 7:18 MFFg/L1.6 4/7/23SM21-23 6200B10cis-1,3-Dichloropropene
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B10trans-1,3-Dichloropropene
13 5.0 4/8/23 7:18 MFFg/L2.0 4/7/23SM21-23 6200B10Diisopropyl Ether (DIPE)
ND 5.0 4/8/23 7:18 MFFg/L2.2 4/7/23SM21-23 6200B10Ethylbenzene
ND 50 4/8/23 7:18 MFFg/L12 4/7/23SM21-23 6200B102-Hexanone (MBK)
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B10Isopropylbenzene (Cumene)
ND 5.0 4/8/23 7:18 MFFg/L1.3 4/7/23SM21-23 6200B10p-Isopropyltoluene (p-Cymene)
680 5.0 4/8/23 7:18 MFFg/L1.7 4/7/23SM21-23 6200B10R-05Methyl tert-Butyl Ether (MTBE)
ND 50 4/8/23 7:18 MFFg/L1.8 4/7/23SM21-23 6200B10Methylene Chloride
ND 50 4/8/23 7:18 MFFg/L13 4/7/23SM21-23 6200B104-Methyl-2-pentanone (MIBK)
Page 13 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-04
Field Sample #: MW-3
Sample Matrix: Ground Water
Sampled: 4/4/2023 15:12
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 5.0 4/8/23 7:18 MFFg/L3.8 4/7/23SM21-23 6200B10L-04Naphthalene
ND 5.0 4/8/23 7:18 MFFg/L1.2 4/7/23SM21-23 6200B10n-Propylbenzene
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B10Styrene
ND 5.0 4/8/23 7:18 MFFg/L1.4 4/7/23SM21-23 6200B101,1,2,2-Tetrachloroethane
ND 5.0 4/8/23 7:18 MFFg/L1.7 4/7/23SM21-23 6200B10Tetrachloroethylene
ND 5.0 4/8/23 7:18 MFFg/L2.2 4/7/23SM21-23 6200B10Toluene
ND 10 4/8/23 7:18 MFFg/L3.4 4/7/23SM21-23 6200B10L-041,2,3-Trichlorobenzene
ND 10 4/8/23 7:18 MFFg/L3.0 4/7/23SM21-23 6200B101,2,4-Trichlorobenzene
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B101,1,1-Trichloroethane
ND 5.0 4/8/23 7:18 MFFg/L1.9 4/7/23SM21-23 6200B101,1,2-Trichloroethane
ND 5.0 4/8/23 7:18 MFFg/L1.7 4/7/23SM21-23 6200B10Trichloroethylene
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B10Trichlorofluoromethane (Freon 11)
ND 5.0 4/8/23 7:18 MFFg/L2.8 4/7/23SM21-23 6200B10R-051,2,3-Trichloropropane
6.0 5.0 4/8/23 7:18 MFFg/L2.0 4/7/23SM21-23 6200B101,2,4-Trimethylbenzene
ND 5.0 4/8/23 7:18 MFFg/L1.5 4/7/23SM21-23 6200B101,3,5-Trimethylbenzene
ND 200 4/8/23 7:18 MFFg/L17 4/7/23SM21-23 6200B10Vinyl Acetate
ND 5.0 4/8/23 7:18 MFFg/L2.4 4/7/23SM21-23 6200B10Vinyl Chloride
ND 10 4/8/23 7:18 MFFg/L4.9 4/7/23SM21-23 6200B10m+p Xylene
5.0 5.0 4/8/23 7:18 MFFg/L2.4 4/7/23SM21-23 6200B10o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.5 4/8/23 7:1870-130
Toluene-d8 97.8 4/8/23 7:1870-130
4-Bromofluorobenzene 93.4 4/8/23 7:1870-130
Page 14 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-05
Field Sample #: MW-04D
Sample Matrix: Ground Water
Sampled: 4/4/2023 14:10
[TOC_2]23D0415-05[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 4/8/23 6:51 MFFg/L2.0 4/7/23SM21-23 6200B1Acetone
ND 0.50 4/8/23 6:51 MFFg/L0.18 4/7/23SM21-23 6200B1Benzene
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B1Bromobenzene
ND 0.50 4/8/23 6:51 MFFg/L0.28 4/7/23SM21-23 6200B1Bromochloromethane
ND 0.50 4/8/23 6:51 MFFg/L0.16 4/7/23SM21-23 6200B1Bromodichloromethane
ND 0.50 4/8/23 6:51 MFFg/L0.41 4/7/23SM21-23 6200B1Bromoform
ND 2.0 4/8/23 6:51 MFFg/L1.3 4/7/23SM21-23 6200B1Bromomethane
ND 5.0 4/8/23 6:51 MFFg/L1.7 4/7/23SM21-23 6200B12-Butanone (MEK)
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B1n-Butylbenzene
ND 0.50 4/8/23 6:51 MFFg/L0.13 4/7/23SM21-23 6200B1sec-Butylbenzene
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B1tert-Butylbenzene
ND 0.50 4/8/23 6:51 MFFg/L0.16 4/7/23SM21-23 6200B1Carbon Tetrachloride
ND 0.50 4/8/23 6:51 MFFg/L0.12 4/7/23SM21-23 6200B1Chlorobenzene
ND 50 4/8/23 6:51 MFFg/L20 4/7/23SM21-23 6200B1Ethanol
ND 0.50 4/8/23 6:51 MFFg/L0.20 4/7/23SM21-23 6200B1Chlorodibromomethane
ND 0.50 4/8/23 6:51 MFFg/L0.34 4/7/23SM21-23 6200B1Chloroethane
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B1Chloroform
ND 0.60 4/8/23 6:51 MFFg/L0.50 4/7/23SM21-23 6200B1Chloromethane
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B12-Chlorotoluene
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B14-Chlorotoluene
ND 0.50 4/8/23 6:51 MFFg/L0.16 4/7/23SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 4/8/23 6:51 MFFg/L0.13 4/7/23SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 4/8/23 6:51 MFFg/L0.13 4/7/23SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 4/8/23 6:51 MFFg/L0.16 4/7/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethane
ND 0.50 4/8/23 6:51 MFFg/L0.30 4/7/23SM21-23 6200B11,2-Dichloroethane
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B11,1-Dichloroethylene
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 4/8/23 6:51 MFFg/L0.17 4/7/23SM21-23 6200B1R-05trans-1,2-Dichloroethylene
ND 0.50 4/8/23 6:51 MFFg/L0.19 4/7/23SM21-23 6200B11,2-Dichloropropane
ND 0.50 4/8/23 6:51 MFFg/L0.12 4/7/23SM21-23 6200B11,3-Dichloropropane
ND 0.50 4/8/23 6:51 MFFg/L0.35 4/7/23SM21-23 6200B12,2-Dichloropropane
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B11,1-Dichloropropene
ND 0.50 4/8/23 6:51 MFFg/L0.16 4/7/23SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 4/8/23 6:51 MFFg/L0.20 4/7/23SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 4/8/23 6:51 MFFg/L0.22 4/7/23SM21-23 6200B1Ethylbenzene
ND 5.0 4/8/23 6:51 MFFg/L1.2 4/7/23SM21-23 6200B12-Hexanone (MBK)
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 4/8/23 6:51 MFFg/L0.13 4/7/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 4/8/23 6:51 MFFg/L0.17 4/7/23SM21-23 6200B1R-05Methyl tert-Butyl Ether (MTBE)
ND 5.0 4/8/23 6:51 MFFg/L0.18 4/7/23SM21-23 6200B1Methylene Chloride
ND 5.0 4/8/23 6:51 MFFg/L1.3 4/7/23SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 15 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 4/5/2023
Work Order: 23D0415Sample Description:Project Location: Libert, NC
Sample ID: 23D0415-05
Field Sample #: MW-04D
Sample Matrix: Ground Water
Sampled: 4/4/2023 14:10
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 4/8/23 6:51 MFFg/L0.38 4/7/23SM21-23 6200B1L-04Naphthalene
ND 0.50 4/8/23 6:51 MFFg/L0.12 4/7/23SM21-23 6200B1n-Propylbenzene
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B1Styrene
ND 0.50 4/8/23 6:51 MFFg/L0.14 4/7/23SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 4/8/23 6:51 MFFg/L0.17 4/7/23SM21-23 6200B1Tetrachloroethylene
ND 0.50 4/8/23 6:51 MFFg/L0.22 4/7/23SM21-23 6200B1Toluene
ND 1.0 4/8/23 6:51 MFFg/L0.34 4/7/23SM21-23 6200B1L-041,2,3-Trichlorobenzene
ND 1.0 4/8/23 6:51 MFFg/L0.30 4/7/23SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 4/8/23 6:51 MFFg/L0.19 4/7/23SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 4/8/23 6:51 MFFg/L0.17 4/7/23SM21-23 6200B1Trichloroethylene
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 4/8/23 6:51 MFFg/L0.28 4/7/23SM21-23 6200B1R-051,2,3-Trichloropropane
ND 0.50 4/8/23 6:51 MFFg/L0.20 4/7/23SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 4/8/23 6:51 MFFg/L0.15 4/7/23SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 4/8/23 6:51 MFFg/L1.7 4/7/23SM21-23 6200B1Vinyl Acetate
ND 0.50 4/8/23 6:51 MFFg/L0.24 4/7/23SM21-23 6200B1Vinyl Chloride
ND 1.0 4/8/23 6:51 MFFg/L0.49 4/7/23SM21-23 6200B1m+p Xylene
ND 0.50 4/8/23 6:51 MFFg/L0.24 4/7/23SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 99.8 4/8/23 6:5170-130
Toluene-d8 98.0 4/8/23 6:5170-130
4-Bromofluorobenzene 93.0 4/8/23 6:5170-130
Page 16 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: SW-846 5030B-SM21-23 6200B
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B336483 04/07/235 5.0023D0415-01 [Trip Blank]
B336483 04/07/235 5.0023D0415-02 [EQ Rinse]
B336483 04/07/235 5.0023D0415-03 [MW-1]
B336483 04/07/230.5 5.0023D0415-04 [MW-3]
B336483 04/07/235 5.0023D0415-05 [MW-04D]
[TOC_1]Sample Preparation Information[TOC]
Page 17 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
[TOC_2]Volatile Organic Compounds by GC/MS[TOC]
Batch B336483 - SW-846 5030B
[TOC_3]B336483[TOC]
Blank (B336483-BLK1) Prepared: 04/07/23 Analyzed: 04/08/23
Acetone g/L50ND
Benzene g/L0.50ND
Bromobenzene g/L0.50ND
Bromochloromethane g/L0.50ND
Bromodichloromethane g/L0.50ND
Bromoform g/L0.50ND
Bromomethane g/L2.0ND
2-Butanone (MEK)g/L5.0ND
n-Butylbenzene g/L0.50ND
sec-Butylbenzene g/L0.50ND
tert-Butylbenzene g/L0.50ND
Carbon Tetrachloride g/L0.50ND
Chlorobenzene g/L0.50ND
Ethanol g/L50ND
Chlorodibromomethane g/L0.50ND
Chloroethane g/L0.50ND
Chloroform g/L0.50ND
Chloromethane g/L0.60ND
2-Chlorotoluene g/L0.50ND
4-Chlorotoluene g/L0.50ND
1,2-Dibromoethane (EDB)g/L0.50ND
1,2-Dichlorobenzene g/L0.50ND
1,3-Dichlorobenzene g/L0.50ND
1,4-Dichlorobenzene g/L0.50ND
Dichlorodifluoromethane (Freon 12)g/L0.50ND
1,1-Dichloroethane g/L0.50ND
1,2-Dichloroethane g/L0.50ND
1,1-Dichloroethylene g/L0.50ND
cis-1,2-Dichloroethylene g/L0.50ND
trans-1,2-Dichloroethylene g/L0.50 R-05ND
1,2-Dichloropropane g/L0.50ND
1,3-Dichloropropane g/L0.50ND
2,2-Dichloropropane g/L0.50ND
1,1-Dichloropropene g/L0.50ND
cis-1,3-Dichloropropene g/L0.50ND
trans-1,3-Dichloropropene g/L0.50ND
Diisopropyl Ether (DIPE)g/L0.50ND
Ethylbenzene g/L0.50ND
2-Hexanone (MBK)g/L5.0ND
Isopropylbenzene (Cumene)g/L0.50ND
p-Isopropyltoluene (p-Cymene)g/L0.50ND
Methyl tert-Butyl Ether (MTBE)g/L0.50 R-05ND
Methylene Chloride g/L5.0ND
4-Methyl-2-pentanone (MIBK)g/L5.0ND
Naphthalene g/L0.50 L-04ND
n-Propylbenzene g/L0.50ND
Styrene g/L0.50ND
1,1,2,2-Tetrachloroethane g/L0.50ND
Tetrachloroethylene g/L0.50ND
Toluene g/L0.50ND
1,2,3-Trichlorobenzene g/L1.0 L-04ND
1,2,4-Trichlorobenzene g/L0.50ND
[TOC_1]QC Data[TOC]
Page 18 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B336483 - SW-846 5030B
Blank (B336483-BLK1) Prepared: 04/07/23 Analyzed: 04/08/23
1,1,1-Trichloroethane g/L0.50ND
1,1,2-Trichloroethane g/L0.50ND
Trichloroethylene g/L0.50ND
Trichlorofluoromethane (Freon 11)g/L0.50ND
1,2,3-Trichloropropane g/L0.50 R-05ND
1,2,4-Trimethylbenzene g/L0.50ND
1,3,5-Trimethylbenzene g/L0.50ND
Vinyl Acetate g/L20ND
Vinyl Chloride g/L0.50ND
m+p Xylene g/L1.0ND
o-Xylene g/L0.50ND
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10325.8
g/L 25.0 70-130Surrogate: Toluene-d8 97.624.4
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 93.623.4
LCS (B336483-BS1) Prepared: 04/07/23 Analyzed: 04/08/23
Acetone g/L50 100 70-130124124
Benzene g/L0.50 10.0 70-13095.59.55
Bromobenzene g/L0.50 10.0 70-13093.39.33
Bromochloromethane g/L0.50 10.0 70-13010610.6
Bromodichloromethane g/L0.50 10.0 70-13094.69.46
Bromoform g/L0.50 10.0 70-13088.98.89
Bromomethane g/L2.0 10.0 60-14011811.8
2-Butanone (MEK)g/L5.0 100 70-130104104
n-Butylbenzene g/L0.50 10.0 70-13088.28.82
sec-Butylbenzene g/L0.50 10.0 70-13089.78.97
tert-Butylbenzene g/L0.50 10.0 70-13093.39.33
Carbon Tetrachloride g/L0.50 10.0 70-13095.99.59
Chlorobenzene g/L0.50 10.0 70-13098.99.89
Ethanol g/L50 100 70-130112112
Chlorodibromomethane g/L0.50 10.0 70-13091.39.13
Chloroethane g/L0.50 10.0 60-14087.38.73
Chloroform g/L0.50 10.0 70-13092.89.28
Chloromethane g/L0.60 10.0 60-14074.57.45
2-Chlorotoluene g/L0.50 10.0 70-13093.39.33
4-Chlorotoluene g/L0.50 10.0 70-13095.49.54
1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13098.79.87
1,2-Dichlorobenzene g/L0.50 10.0 70-13096.19.61
1,3-Dichlorobenzene g/L0.50 10.0 70-13096.39.63
1,4-Dichlorobenzene g/L0.50 10.0 70-13099.99.99
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14010510.5
1,1-Dichloroethane g/L0.50 10.0 70-13089.98.99
1,2-Dichloroethane g/L0.50 10.0 70-13010210.2
1,1-Dichloroethylene g/L0.50 10.0 70-13011311.3
cis-1,2-Dichloroethylene g/L0.50 10.0 70-13092.19.21
trans-1,2-Dichloroethylene g/L0.50 10.0 R-0570-13011511.5
1,2-Dichloropropane g/L0.50 10.0 70-13095.69.56
1,3-Dichloropropane g/L0.50 10.0 70-13094.59.45
2,2-Dichloropropane g/L0.50 10.0 70-13076.07.60
1,1-Dichloropropene g/L0.50 10.0 70-13094.49.44
cis-1,3-Dichloropropene g/L0.50 10.0 70-13089.88.98
trans-1,3-Dichloropropene g/L0.50 10.0 70-13090.59.05
Page 19 of 27
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B336483 - SW-846 5030B
LCS (B336483-BS1) Prepared: 04/07/23 Analyzed: 04/08/23
Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13010310.3
Ethylbenzene g/L0.50 10.0 70-13095.39.53
2-Hexanone (MBK)g/L5.0 100 70-13081.281.2
Isopropylbenzene (Cumene)g/L0.50 10.0 70-13092.69.26
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13089.48.94
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 R-0570-13012312.3
Methylene Chloride g/L5.0 10.0 70-13011811.8
4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-13090.090.0
Naphthalene g/L0.50 10.0 L-0470-13051.3 *5.13
n-Propylbenzene g/L0.50 10.0 70-13094.79.47
Styrene g/L0.50 10.0 70-13097.79.77
1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13094.69.46
Tetrachloroethylene g/L0.50 10.0 70-13095.99.59
Toluene g/L0.50 10.0 70-13092.79.27
1,2,3-Trichlorobenzene g/L1.0 10.0 L-0470-13061.9 *6.19
1,2,4-Trichlorobenzene g/L0.50 10.0 70-13074.07.40
1,1,1-Trichloroethane g/L0.50 10.0 70-13093.79.37
1,1,2-Trichloroethane g/L0.50 10.0 70-13098.39.83
Trichloroethylene g/L0.50 10.0 70-13096.99.69
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 70-13011611.6
1,2,3-Trichloropropane g/L0.50 10.0 R-0570-13085.08.50
1,2,4-Trimethylbenzene g/L0.50 10.0 70-13093.89.38
1,3,5-Trimethylbenzene g/L0.50 10.0 70-13092.59.25
Vinyl Acetate g/L20 100 70-13094.694.6
Vinyl Chloride g/L0.50 10.0 60-14096.39.63
m+p Xylene g/L1.0 20.0 70-13095.519.1
o-Xylene g/L0.50 10.0 70-13094.09.40
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10225.5
g/L 25.0 70-130Surrogate: Toluene-d8 10025.0
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 93.623.4
LCS Dup (B336483-BSD1) Prepared: 04/07/23 Analyzed: 04/08/23
Acetone g/L50 100 25 L-0770-130137 10.1*137
Benzene g/L0.50 10.0 2570-13091.3 4.509.13
Bromobenzene g/L0.50 10.0 2570-13094.0 0.7479.40
Bromochloromethane g/L0.50 10.0 2570-130101 5.2310.1
Bromodichloromethane g/L0.50 10.0 2570-13098.7 4.249.87
Bromoform g/L0.50 10.0 2570-13091.2 2.559.12
Bromomethane g/L2.0 10.0 2560-140127 7.0212.7
2-Butanone (MEK)g/L5.0 100 2570-130103 1.76103
n-Butylbenzene g/L0.50 10.0 2570-13085.3 3.348.53
sec-Butylbenzene g/L0.50 10.0 2570-13089.5 0.2238.95
tert-Butylbenzene g/L0.50 10.0 2570-13091.3 2.179.13
Carbon Tetrachloride g/L0.50 10.0 2570-13094.3 1.689.43
Chlorobenzene g/L0.50 10.0 2570-13095.2 3.819.52
Ethanol g/L50 100 2570-13097.7 13.797.7
Chlorodibromomethane g/L0.50 10.0 2570-13089.2 2.338.92
Chloroethane g/L0.50 10.0 2560-14094.3 7.719.43
Chloroform g/L0.50 10.0 2570-13091.4 1.529.14
Chloromethane g/L0.60 10.0 2560-14072.5 2.727.25
2-Chlorotoluene g/L0.50 10.0 2570-13091.2 2.289.12
4-Chlorotoluene g/L0.50 10.0 2570-13097.2 1.879.72
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
QUALITY CONTROL
Batch B336483 - SW-846 5030B
LCS Dup (B336483-BSD1) Prepared: 04/07/23 Analyzed: 04/08/23
1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-13097.5 1.229.75
1,2-Dichlorobenzene g/L0.50 10.0 2570-13096.2 0.1049.62
1,3-Dichlorobenzene g/L0.50 10.0 2570-13097.1 0.8279.71
1,4-Dichlorobenzene g/L0.50 10.0 2570-13097.1 2.849.71
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-140100 4.8610.0
1,1-Dichloroethane g/L0.50 10.0 2570-13087.1 3.168.71
1,2-Dichloroethane g/L0.50 10.0 2570-130101 0.29610.1
1,1-Dichloroethylene g/L0.50 10.0 2570-130125 10.312.5
cis-1,2-Dichloroethylene g/L0.50 10.0 2570-13089.9 2.428.99
trans-1,2-Dichloroethylene g/L0.50 10.0 25 R-0570-13089.3 25.2 *8.93
1,2-Dichloropropane g/L0.50 10.0 2570-13093.4 2.339.34
1,3-Dichloropropane g/L0.50 10.0 2570-13097.3 2.929.73
2,2-Dichloropropane g/L0.50 10.0 2570-13075.0 1.327.50
1,1-Dichloropropene g/L0.50 10.0 2570-13090.0 4.779.00
cis-1,3-Dichloropropene g/L0.50 10.0 2570-13089.9 0.1118.99
trans-1,3-Dichloropropene g/L0.50 10.0 2570-13088.9 1.788.89
Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-130100 3.0510.0
Ethylbenzene g/L0.50 10.0 2570-13093.8 1.599.38
2-Hexanone (MBK)g/L5.0 100 2570-13085.5 5.1285.5
Isopropylbenzene (Cumene)g/L0.50 10.0 2570-13094.2 1.719.42
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-13093.1 4.059.31
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 25 R-0570-13093.4 27.1 *9.34
Methylene Chloride g/L5.0 10.0 2570-130119 1.1011.9
4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-13091.9 2.0991.9
Naphthalene g/L0.50 10.0 25 L-0470-13047.7 7.27*4.77
n-Propylbenzene g/L0.50 10.0 2570-13095.7 1.059.57
Styrene g/L0.50 10.0 2570-13095.2 2.599.52
1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-13094.7 0.1069.47
Tetrachloroethylene g/L0.50 10.0 2570-13097.7 1.869.77
Toluene g/L0.50 10.0 2570-13093.8 1.189.38
1,2,3-Trichlorobenzene g/L1.0 10.0 25 L-0470-13059.1 4.63*5.91
1,2,4-Trichlorobenzene g/L0.50 10.0 25 L-0770-13069.3 6.56*6.93
1,1,1-Trichloroethane g/L0.50 10.0 2570-13091.0 2.929.10
1,1,2-Trichloroethane g/L0.50 10.0 2570-13097.7 0.6129.77
Trichloroethylene g/L0.50 10.0 2570-13096.8 0.1039.68
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-130121 4.0412.1
1,2,3-Trichloropropane g/L0.50 10.0 25 R-0570-130121 34.8 *12.1
1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13090.7 3.369.07
1,3,5-Trimethylbenzene g/L0.50 10.0 2570-13095.0 2.679.50
Vinyl Acetate g/L20 100 2570-13094.1 0.48894.1
Vinyl Chloride g/L0.50 10.0 2560-14099.4 3.179.94
m+p Xylene g/L1.0 20.0 2570-13095.8 0.36619.2
o-Xylene g/L0.50 10.0 2570-13092.7 1.399.27
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10125.2
g/L 25.0 70-130Surrogate: Toluene-d8 99.624.9
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 95.023.8
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
No results have been blank subtracted unless specified in the case narrative section.
FLAG/QUALIFIER SUMMARY
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits.
Reported value for this compound is likely to be biased on the low side.
L-04
Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but
the other is within limits. RPD between the two LFB/LCS results is within method specified criteria.
L-07
Laboratory fortified blank duplicate RPD is outside of control limits. Reduced precision is anticipated for any
reported value for this compound.
R-05
Elevated reporting limit due to high concentration of target compounds.RL-11
[TOC_1]Flag/Qualifier Summary[TOC]
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-23 6200B in Water
NCAcetone
NCBenzene
NCBromobenzene
NCBromochloromethane
NCBromodichloromethane
NCBromoform
NCBromomethane
NC2-Butanone (MEK)
NCn-Butylbenzene
NCsec-Butylbenzene
NCtert-Butylbenzene
NCCarbon Tetrachloride
NCChlorobenzene
NCEthanol
NCChlorodibromomethane
NCChloroethane
NCChloroform
NCChloromethane
NC2-Chlorotoluene
NC4-Chlorotoluene
NC1,2-Dibromoethane (EDB)
NC1,2-Dichlorobenzene
NC1,3-Dichlorobenzene
NC1,4-Dichlorobenzene
NCDichlorodifluoromethane (Freon 12)
NC1,1-Dichloroethane
NC1,2-Dichloroethane
NC1,1-Dichloroethylene
NCcis-1,2-Dichloroethylene
NCtrans-1,2-Dichloroethylene
NC1,2-Dichloropropane
NC1,3-Dichloropropane
NC2,2-Dichloropropane
NC1,1-Dichloropropene
NCcis-1,3-Dichloropropene
NCtrans-1,3-Dichloropropene
NCDiisopropyl Ether (DIPE)
NCEthylbenzene
NC2-Hexanone (MBK)
NCIsopropylbenzene (Cumene)
NCp-Isopropyltoluene (p-Cymene)
NCMethyl tert-Butyl Ether (MTBE)
NCMethylene Chloride
NC4-Methyl-2-pentanone (MIBK)
NCNaphthalene
NCn-Propylbenzene
NCStyrene
[TOC_1]Certifications[TOC]
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39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-23 6200B in Water
NC1,1,2,2-Tetrachloroethane
NCTetrachloroethylene
NCToluene
NC1,2,3-Trichlorobenzene
NC1,2,4-Trichlorobenzene
NC1,1,1-Trichloroethane
NC1,1,2-Trichloroethane
NCTrichloroethylene
NCTrichlorofluoromethane (Freon 11)
NC1,2,3-Trichloropropane
NC1,2,4-Trimethylbenzene
NC1,3,5-Trimethylbenzene
NCVinyl Acetate
NCVinyl Chloride
NCm+p Xylene
NCo-Xylene
The CON-TEST Environmental Laboratory operates under the following certifications and accreditations:
Code Description Number Expires
652North Carolina Div. of Water QualityNC 12/31/2023
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