WS-7017_30656_CA_MRP_20230831

ENVIRONMENTAL | CIVIL | GEOTECHNICAL

MONITORING REPORT RURAL HALL SHELL, INC. 7890 BROAD STREET RURAL HALL, FORSYTH COUNTY, NC NCDEQ INCIDENT NO. 30656 RISK CLASSIFICATION: LOW

AUGUST 31, 2023 NCDEQ CONTRACT NO. N70522-A TASK AUTHORIZATION NO. 01 CATLIN PROJECT NO. 222159 PREPARED FOR: MR. SCOTT RYALS 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; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 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 3 4.4 SITE CHARACTERISTICS 3 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 4
5.0 REGIONAL AND SITE GEOLOGY AND HYDROGEOLOGY 5
5.1 SOIL AND BEDROCK 5
5.2 HYDROGEOLOGY 6
6.0 SITE ASSESSMENT INFORMATION 6
6.1 GAUGING DATA 6 6.2 SAMPLING DATA 7 6.3 SUMMARY OF GROUNDWATER INFORMATION 7 6.4 EVALUATION OF ASSESSMENT INFORMATION 8
7.0 CONCLUSIONS AND RECOMMENDATIONS 9
8.0 LIMITATIONS 9
9.0 STATEMENTS AND CERTIFICATION 10
10.0 REFERENCES 10

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 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 VICINITY MAP
FIGURE 2 POTENTIAL RECEPTOR MAP
FIGURE 3 SITE MAP
FIGURE 4 GROUNDWATER ELEVATION – JULY 25, 2023
FIGURE 5 MONITORING WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – JULY 25, 2023
FIGURE 6 ESTIMATED HORIZONTAL EXTENT OF BENZENE – JULY 25, 2023
APPENDICES
APPENDIX A HISTORICAL DATA
APPENDIX B SITE PHOTOGRAPHS
APPENDIX C DAILY ACTIVITIES LOG AND FIELD DATA SHEETS
APPENDIX D LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 1 August 2023
1.0 SITE INFORMATION
Site Identification
Date: 08/31/2023 Site Risk/Priority Rank: Low
UST Number: WS-7017 Incident Number: 30656
Site Name: Rural Hall Shell, Inc. Facility ID: 00-025670
Site Location: 7890 Broad Street
Nearest City/Town: Rural Hall County: Forsyth
Description of Geographical Data Point: Monitoring Well MW-1
Location Method: Google Earth
Latitude (decimal degrees): 36.23723° Longitude (decimal degrees): -80.29129°
Contacts Information
UST Owner: Rural Hall Automotive
Address: 7890 Broad St., Rural Hall, NC 27045 Phone: [phone]
UST Operator: Rural Hall Automotive
Address: 7890 Broad St., Rural Hall, NC 27045 Phone: [phone]
Property Owner: Wesley L. Hunsucker
Address: PO Box 147, Rural Hall, NC 27045 Phone: Unknown
Property Occupant: Rural Hall Automotive
Address: 7890 Broad St., Rural Hall, NC 27045 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: 06/02/2005
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 10,000-gallon gasoline UST
• One 8,300-gallon gasoline UST
• One 7,500-gallon gasoline UST
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 2 August 2023
2.0 EXECUTIVE SUMMARY
The Rural Hall Shell, Inc. site is located at 7890 Broad Street, Rural Hall, Forsyth
County, North Carolina. Four underground storage tanks (USTs) were previously
operated at the site. One 1,000-gallon waste oil UST was removed from the site in 1988. In 2005, a 10,000-gallon gasoline, 8,300-gallon gasoline, and 7,500-gallon gasoline USTs were abandoned in place. A petroleum release was discovered during the 2005 tank closure activities.

The purpose of this report is to document the latest groundwater sampling event. On July 25, 2023, CATLIN Engineers and Scientists (CATLIN) personnel measured groundwater at approximately 19.6 feet deep across the site. Light non-aqueous phase liquid (LNAPL, aka free product) was not measured in any of the monitoring
wells. Groundwater samples were collected from three monitoring wells (MW-1,
MW-02, and MW-03) and 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).
Multiple VOCs were detected in the MW-1, MW-02, and MW-03 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).
During the previous monitoring event, tetrachloroethylene was reported above 2L
GWQS in the MW-1 sample at a concentration above its 2L GWQS. However, during this event, the concentration of tetrachloroethylene returned to below the laboratory method detection limit, similar to previous events.
According to previous reports, municipal water is available to the site vicinity. No
water supply wells have been identified within 1,500 feet of the site. CATLIN recommends the site be a candidate for No Further Action (NFA) status following the filing of a Notice of Residual Petroleum (NRP).
3.0 SCOPE OF SERVICES The scope of services for this report was performed in general accordance with CATLIN proposal number 222159.01P, dated May 25, 2023. Services were
authorized by the North Carolina Department of Environmental Quality’s (NCDEQ’s) Task Authorization (TA) #01, approved on May 26, 2023, and Contract Number N70522-A. The approved scope of services for this Task Authorization included to:
• Collect three groundwater samples (one from each monitoring well);
• Analyze four water samples (three monitoring wells and one field blank) per SM 6200B (including EDB, MTBE, and DIPE); and
• Prepare and submit a monitoring report summarizing the findings.
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 3 August 2023
The scope of services was conducted in general accordance with the approved TA.
4.0 SITE HISTORY AND CHARACTERIZATION

The Rural Hall Shell, Inc. site is located at 7890 Broad Street, Rural Hall, Forsyth 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 Rural Hall Automotive owned the four USTs historically operated on-site. The waste oil UST was used by Rural Hall Automotive for fuel storage until its
removal in 1988. The gasoline tanks were operated for petroleum retail until
November 2004. The site was accepted into the North Carolina UST Section Trust Fund Branch State Lead Program in May 2022 (NCDEQ, 2022). Available information regarding UST owners/operators is presented on
Table 1.
4.2 UST INFORMATION One 7,500-gallon gasoline, 10,000-gallon gasoline, 8,300-gallon gasoline,
and 1,000-gallon waste oil USTs were previously operated on-site. The tanks
were installed in 1953 (T1), 1962 (T4), 1970 (T2), and 1971 (T3). The 1,000-gallon waste oil UST (T4) was removed from the site in 1988. Tanks T1 through T3 operated from their installation until November 2004 and were abandoned in place in 2005.

Available UST system information is presented in Table 1 and the approximate former UST system and former dispenser island locations are illustrated on Figure 3.
4.3 CONTAMINANT SOURCE INVENTORY An on-site release was discovered in 2005 during UST closure activities, when soil contamination was revealed at the site. Details are scarce as the UST closure report is unavailable.
4.4 SITE CHARACTERISTICS The property is owned by Wesley L. Hunsucker and the property is occupied by an automotive repair shop (Rural Hall Automotive), which no longer sells
fuel. The parcel is comprised of the automotive shop, the building of a pest control business (Ideal Pest Control), paved surfaces, and a grassy lot in the southwest corner. Site photographs are presented in Appendix B.
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 4 August 2023
4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES AND LAND USE
Properties in the site vicinity are a mix of residences, commercial businesses,
institutional spaces, and public areas. The site is bound by Broad Street to the east and Summit Street to the north. Businesses adjoin the property to the west (Rural Hall Hair Company) and south (Human Risk LLC). An active gas station (BP) is located to the southeast (across Broad Street).
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 Rural Hall Shell, Inc. site was conducted in 2005 by Terraquest Environmental Consultants, P.C. (Terraquest). According to previous reports, municipal water is available to the site vicinity.
No water supply wells have been identified within 1,500 feet of the site.
Three surface water bodies are located within 1,500 feet of the site. A pond in Covington Memorial Park is located 665 feet southwest and drains into Grassy Creek, a Class C surface water body approximately 1,500 feet west
of the site. A tributary of Lucy Branch, also Class C, is 800 feet northeast.
Potential receptors are illustrated on Figure 2 and receptor information obtained from Terraquest (2006) is shown on Table 2.
4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES
Historical files available on Laserfiche do not fully elucidate the site history. A summary of on-site investigations and remedial activities indicated in previous reports is provided herein.
The release was discovered in 2005 during UST closure activities. The UST closure report is unavailable, but soil samples were reportedly collected, and it is assumed the laboratory findings were above State Action Levels (Terraquest, 2006).
Terraquest conducted a Phase I Limited Site Assessment (LSA) in 2006. A receptor survey was conducted, and no water supply wells were identified within 1,500 feet of the site. Risk classification concluded the site should be ranked as Low Risk with residential land-use. Monitoring well MW-1 was
installed, and soil and groundwater samples were collected. No LNAPL was detected during site activities. Laboratory analysis revealed multiple petroleum contaminants in the soil samples at concentrations above their Residential Maximum Soil Contaminant Concentrations (MSCCs). Analysis of
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 5 August 2023
the groundwater samples (February and March 2006) showed multiple contaminants above their 2L GWQS, but below their GCL (Terraquest, 2006).
No further monitoring or remediation efforts appear to have been conducted
between 2006 and 2022. Due to the Low Risk ranking of the site, a NRP was filed in April 2022 and the site was closed. However, the site was reopened in May 2022 to facilitate further sampling (Ryals, 2022).
CATLIN first mobilized to the site June 2022. Measurable LNAPL was
detected in monitoring well MW-1 (0.06 feet thick); therefore, no groundwater sample could be collected (CATLIN, 2022A). In August 2022, CATLIN supervised an aggressive fluid vapor recovery
(AFVR) event utilizing monitoring well MW-1 as the extraction point. The
event lasted for a duration of eight hours and removed a total of 1,115 gallons of impacted groundwater and LNAPL. A calculated 10.266 pounds of petroleum vapors were emitted, equivalent to approximately 1.643 gallons of petroleum. Air samples were collected at the start of the event and prior to its
termination. Laboratory analysis indicated a total petroleum hydrocarbon
(TPH) reduction of approximately 29% (CATLIN, 2022B). CATLIN returned to the site in September 2022 and February 2023 to conduct groundwater sampling at MW-1. During both sampling events,
analytical results revealed multiple petroleum constituents at concentrations
above 2L GWQS but below GCL (CATLIN, 2022B; 2023A). In April 2023, CATLIN collected samples from monitoring wells MW-1, MW-02, and MW-03. Multiple VOCs were detected in the MW-1 and MW-03
samples at concentrations above their respective 2L GWQS. Only benzene
was reported above its 2L GWQS in the sample from MW-02. Tetrachloroethylene was reported above 2L GWQS in the MW-1 sample at a concentration of 110 micrograms per liter (μg/L), above its 2L GWQS of 0.7 μg/L. During previous sampling events (February 2023 and September
2022), it was reported below the laboratory method detection limit of 0.19
μg/L (CATLIN, 2023B). Summarized available historical sampling data from Terraquest (2006) are provided in Appendix A.
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.
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 6 August 2023
According to the 1985 Geologic Map of North Carolina, the site region is underlain by a formation of metagraywacke, amphibolite, and kyanite schist within an overlap of the Inner Piedmont, Chauga, Smith River Allochthon,
and Sauratown Mountain belts.
The MW-02 and MW-03 monitoring well borings logs indicate that, under a half-foot layer of concrete, orange to red silt with mica is present to approximately 9.5 feet BLS. Orange to tan silty sand with mica was
encountered from approximately 9.5 to 25 feet BLS. Saprolite was observed
at further depths. 5.2 HYDROGEOLOGY
Groundwater – The 2020 Visual Hydrogeologic Framework (VHF) – North
Carolina Hydrogeological Database did not identify sufficient boreholes near the site to draw a cross-section. Groundwater is roughly 20 feet deep across the site. Based on limited groundwater elevation data and topographic feature interpretation, groundwater flow is towards the southwest.

Surface Water – Three surface water bodies were identified within 1,500 feet of the site: a small pond in Covington Memorial Park, Grassy Creek, and a tributary of the Lucy Branch. The pond also drains into Grassy Creek. According to the NCDEQ North Carolina Surface Water Classifications GIS
viewer, both Grassy Creek and Lucy Branch are identified as Class C surface
water bodies. 6.0 SITE ASSESSMENT INFORMATION
CATLIN conducted field activities on July 25, 2023 in general accordance with the
approved TA. Upon arrival at the site, potential hazards were evaluated before beginning field work and their discussion is documented on a Daily Activities Log, 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 GAUGING DATA During previous CATLIN gauging events, the depth to water in monitoring
well MW-1 has averaged 20 feet below top of casing (BTOC). In April 2023, the groundwater flow direction was calculated to be toward the southwest. During the July 2023 monitoring event, CATLIN personnel measured depth to water in the monitoring wells using an electronic water interface probe. Prior
to use, the probe and cabling were decontaminated according to manufacturer’s recommendations. Gauging data were recorded on an electronic groundwater sampling form using a tablet device. Gauging procedures were performed in general accordance with North Carolina Department of Environmental and Natural Resources (NCDENR) and
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 7 August 2023
NCDEQ Guidelines, and Environmental Protection Agency (EPA) Region 4 Operating Procedures.
Depth to water was 19.30 feet BTOC in MW-1, 19.43 feet BTOC in MW-02,
and 19.99 feet BTOC in MW-03. There was no measurable LNAPL in any of the monitoring wells. Groundwater flow direction was calculated to be toward the southwest.
Monitoring well gauging results for events conducted by CATLIN are
presented in Table 3. Groundwater elevation is illustrated on Figure 4 and a groundwater sampling form is provided in Appendix C. 6.2 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 a representative groundwater sample, the monitoring wells were purged by removing a minimum of three well volumes
using a new, disposable bailer. Monitoring well groundwater field parameter data were measured at one-minute intervals using an In-Situ Aqua TROLL 600 Multiparameter Sonde (Aqua TROLL). Conductivity, pH, oxidation reduction potential (ORP), dissolved oxygen, and temperature measurements were recorded utilizing the VuSitu mobile application (version
1.17.12). The Aqua TROLL was decontaminated according to manufacturer’s recommendations prior to use. Groundwater parameter data were transferred from the VuSitu mobile application to the electronic groundwater sampling form. 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 appropriate laboratory-provided, pre-preserved glassware, labeled, and placed on ice in an insulated cooler.
A field blank was collected by pouring water from a new, sealed gallon of
distilled water directly into laboratory-provided, pre-preserved glassware. The glassware was labeled and placed on ice in an insulated cooler. The groundwater samples and field 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 D.
6.3 SUMMARY OF GROUNDWATER INFORMATION
During the 2006 LSA and the previous groundwater sampling event conducted by CATLIN (April 2023), samples from monitoring wells MW-1, MW-02, and MW-03 contained multiple VOCs at concentrations above their
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 8 August 2023
2L GWQS. However, no constituents were above their GCL. Summarized available historical sampling data from Terraquest (2006) are provided 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 D.

Monitoring Wells During the July 2023 monitoring event, three monitoring well groundwater
samples (MW-1, MW-02, and MW-03) were collected and submitted for
analysis via SM 6200B (including EDB, MTBE, and DIPE). No analyte concentrations were detected above GCL. Analytical results reported the following constituents at concentrations above their 2L GWQS in samples MW-1, MW-02, and MW-03:
• MW-1:. ethylbenzene, isopropylbenzene, naphthalene, n-propylbenzene, styrene, toluene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, and total xylenes;
• MW-02: benzene and naphthalene; and
• MW-03:. benzene, n-butylbenzene, sec-butylbenzene, p-isopropyltoluene, MTBE, naphthalene, n-propylbenzene, 1,2,4-trimethylbenzene, and total xylenes.

Field Blank One field blank sample was submitted for analysis per SM 6200B (including EDB, MTBE, and DIPE). An estimated concentration (“J”-value) of acetone (a
common laboratory artifact) was detected in the field blank sample. No other targeted analytes were detected in the sample. 6.4 EVALUATION OF ASSESSMENT INFORMATION
Extent of Contamination Several petroleum constituents were detected above their respective 2L GWQS in the samples from MW-1, MW-02, and MW-03. However, no constituents were reported above GCL. A summary of monitoring well
groundwater sample analytical results are illustrated on Figure 5. The estimated horizontal extent of benzene is illustrated on Figure 6. The dissolved phase contaminant plume has not been horizontally or vertically delineated.
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 9 August 2023
The highest contaminant concentrations have generally been reported in MW-1. The contaminant concentrations in MW-1, MW-02, and MW-03 have fluctuated since the previous monitoring event in April 2023. During the
previous event, tetrachloroethylene was detected at 110 µg/L (above the 2L
GWQS of 0.7 µg/L); however, during the July 2023 event tetrachloroethylene returned to below detection limits, similar to previous events. Cleanup Levels Achieved

Soil – Soil samples obtained in 2006 indicate that VOC concentrations are above Residential MSCCs (Terraquest, 2006). Groundwater – Groundwater contaminant concentrations are above 2L
GWQS, but below GCL at the site.

LNAPL – LNAPL was not noted during this monitoring event. LNAPL has not been measured at the site since August 2022.
7.0 CONCLUSIONS AND RECOMMENDATIONS

Conclusions Groundwater monitoring findings for this period are summarized below:
• Groundwater samples from three monitoring wells (MW-1, MW-02, and MW-03) were collected and analyzed per SM 6200B (including EDB, MTBE, and DIPE).
• No LNAPL was measured in the monitoring wells during this event. LNAPL has not been noted at the site since August 2022.
• Multiple petroleum constituents were reported at concentrations above 2L GWQS, but below GCL, in the samples from MW-1, MW-02, and MW-03.
• The contaminant concentrations in the monitoring well samples have fluctuated since the previous monitoring event in April 2023.
• Tetrachloroethylene has returned to below method detection limits in MW-1,
similar to previous events.

Recommendations CATLIN recommends the site be a candidate for NFA status following the filing of a
NRP.
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
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 10 August 2023
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.

9.0 STATEMENTS AND CERTIFICATION

1 Enter the date the monitoring report was due. August 31, 2023
Will this report be submitted after the established due date?
NO
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.
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, Letter Report, Rural Hall Shell, Inc., 7890 Broad
Street, Rural Hall, NC 27045, Incident Number: 30656, Risk Classification:
Low, CATLIN Project No. 222159.1, July 21, 2022(A).
CATLIN Engineers and Scientists, Monitoring Report, Rural Hall Shell, Inc., 7890
Broad Street, Rural Hall, Forsyth County, NC, NCDEQ Incident No. 30656,
Risk Classification: Low, October 27, 2022(B).

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 11 August 2023
CATLIN Engineers and Scientists, Letter Report, Rural Hall Shell, Inc., 7890 Broad
Street, Rural Hall, NC 27045, Incident Number: 30656, Risk Classification: Low, CATLIN Project No. 222159, February 24, 2023(A).
CATLIN Engineers and Scientists, Letter Report, Rural Hall Shell, Inc., 7890 Broad
Street, Rural Hall, NC 27045, Incident Number: 30656, Risk Classification:
Low, CATLIN Project No. 222159, May 23, 2023(B).
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, Corrective Action Guidelines, January 19, 2021.
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, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, State-Lead Acceptance, Rural Hall Shell, 7890 Broad Street, Rural Hall, Forsyth County, NC, Incident Number 30656,
May 16, 2022.
North Carolina Department of Natural Resources and Community Development,
Geological Map of North Carolina, 1985.
Ryals, Scott, Personal Communication, Email, October 18, 2022.
Terraquest Environmental Consultants, O.C., Limited Site Assessment Report
(Phase I), Rural Hall Shell, 7890 Broad Street, Rural Hall, North Carolina, April 6, 2006.
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; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

TABLES
Page 1 of 1
TABLE 1
SITE HISTORY — UST AND OTHER RELEASE INFORMATION
Incident Name and No.: Rural Hall Shell, Inc. - 30656
UST ID
Number
Name of
Owner/
Operator
Dates of
Ownership
(mm/dd/yy)
Dates of
Operation
Last
Contents
Previous
Contents
Capacity
(gal)
Construction
Details
Tank
Dimensions
Installation
Date
(mm/dd/yy)
Date
Removed
(mm/dd/yy)
*T1 09/30/53 -
07/29/05 Gasoline Unknown 7,500 Single Wall
Steel Unknown 09/30/53 AIP 07/29/05
T2 09/28/62 -
12/10/88 Waste Oil Unknown 1,000 Single Wall
Steel Unknown 09/28/62 12/10/88
*T3 09/26/70 -
07/29/05 Gasoline Unknown 10,000 Single Wall
Steel Unknown 09/26/70 AIP 07/29/05
*T4 09/26/71 -
07/29/05 Gasoline Unknown 8,300 Single Wall
Steel Unknown 09/26/71 AIP 07/29/05
Incident
Number
Material
Released
Date Release
Discovered
(mm/dd/yy)
30656 Gasoline 06/02/05
Information obtained from Terraquest (2006) and the NCDEQ Tanks Database.
gal = gallons
AIP = Abandoned In Place (filled with foam)
* = Tank system was associated with the release.
Rural Hall
Automotive
Description of the Release
TPH discovered in soils during UST excavation on June 2, 2005.
Installation -
November
2004
NCDEQ; 30656_Rural Hall Shell, Inc.; T1_Site History
CATLIN Project No. 222159
CATLIN Engineers and Scientists
August 2023
Page 1 of 1
TABLE 2
Incident Name and No.: Rural Hall Shell, Inc. - 30656
Well ID Property
Address PIN Number Owner Name
(Last, First MI)
Owner Mailing
Address Well Use
Distance/
Direction
from
Source Area
(ft.)
Comment
Receptor
ID Location Contact
Distance/
Direction from
Source Area (ft.)
Grassy Creek West of Site —1,500 / W
Lucy Branch Northeast of Site —800 / NE
Pond 7450 Church St.Rural Hall Parks
& Rec. Dept.665 / SW
Information obtained from TerraQuest (2006) and the NC Surface Water Classifications map, accessed August 2022.
ft. = feet
PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION
Description
Class C surface water body
No water supply wells were identified within 1,000 feet.
Pond in Covington Memorial Park that drains into Grassy Creek
Tributary of Lucy Branch, a Class C surface water body
NCDEQ; 30656_Rural Hall Shell, Inc.; T2_Receptor Info
CATLIN Project No. 222159
CATLIN Engineers and Scientists
August 2023
Page 1 of 1
TABLE 3
WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA
Incident Name and No.: Rural Hall Shell, Inc. - 30656
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*
(ft.)
Depth to
Groundwater
from Top of
Casing (ft.)
Groundwater
Elevation (ft.)Comments
06/30/22 0.06 19.68 80.37
08/08/22 0.07 19.92 80.14 Pre-AFVR
08/08/22 NMT 21.00 79.00 Post-AFVR
09/20/22 NMT 20.18 79.82
02/01/23 NMT 19.67 80.33
04/17/23 NMT 19.13 80.87
07/25/23 NMT 19.30 80.70
04/17/23 NMT 19.30 81.04
07/25/23 NMT 19.43 80.91
04/17/23 NMT 19.81 80.66
07/25/23 NMT 19.99 80.48
AFVR = Aggressive Fluid Vapor Recovery
NMT = No Measurable Thickness
MW-1 construction information obtained from TerraQuest (2006).
MW-1
2.0
2.0
2.0
04/04/23
04/04/23
02/09/06
ft. BLS = feet Below Land Surface
* = 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]
100.47
100.34
100.00
25
25
28
15-25
15-25
15-28
15
15
15
MW-03
MW-02
NCDEQ; 30656_Rural Hall Shell, Inc.; T3_Well Construction & Gauging
CATLIN Project No. 222159
CATLIN Engineers and Scientists
August 2023
Page 1 of 1
TABLE 4
SUMMARY OF GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B
Incident Name and No.: Rural Hall Shell, Inc. - 30656
Date
Collected
(mm/dd/yy)
07/25/23 <400 <37 ƚ 48 J 40 J <40 3,900 280 <25 <34 ƚ 620 690 170 4,700 5,800 1,400 24,100 BMDL
07/25/23 <4.0 20 40 8.5 1.2 120 6.5 6.2 7.9 7.2 20 1.5 26 120 35 455 BMDL
07/25/23 <20 61 440 120 4.7 J 420 42 64 43 66 180 19 300 840 270 2,090 BMDL
07/25/23 4.0 J,L <0.18 <0.15 <0.13 <0.20 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.15 <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)
2L GWQS = NCAC T15A:02L Groundwater Quality Standards
Bold results indicate concentrations above 2L GWQS.
GCL = Gross Contaminant Level
< = Less than Method Detection Limit
ƚ = The Method Detection Limit is above the 2L GWQS.
J = Detected but below the Reporting Limit (lowest calibration standard); 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).All Other SM 6200B Analytes1,3,5-TrimethylbenzeneToluene1,2,4-TrimethylbenzeneContaminant of
Concern
Acetonesec-ButylbenzeneIsopropylbenzene (Cumene)n-PropylbenzeneEthylbenzeneMethyl tert-Butyl Ether (MTBE)Naphthalene Benzenen-ButylbenzeneStyreneField Blank / FB
GCL (µg/L)
2L GWQS (µg/L)
6,000,000
6,000
8,800
70
Well/
Sample ID
MW-1
5,000
1
5,900
70
MW-02
MW-03
70,000
70Diisopropyl Ether (DIPE)Varies
Varies
6,000
6
26,100
70
260,000
600
28,500
400
24,100
400
70,000
70 Total Xylenesp-Isopropyltoluene (p-Cymene)80,000
600
30,500
70
11,700
25
20,000
20
50,000
500
NCDEQ; 30656_Rural Hall Shell, Inc.; T4_GW Results (SM 6200B)
CATLIN Project No. 222159
CATLIN Engineers and Scientists
August 2023
Page 1 of 1
TABLE 5
SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B
Incident Name and No.: Rural Hall Shell, Inc. - 30656
Date
Collected
(mm/dd/yy)
09/20/22 BMDL <20 ƚ BMDL 78 51 BMDL 2,900 280 23 J BMDL 700 780 120 BMDL 2,200 6,100 1,600 22,000 BMDL
02/01/23 330 J 29 J 240 J 96 59 BMDL 3,200 300 26 J 34 J 1,100 L 830 140 BMDL 2,400 7,000 1,700 22,200 BMDL
04/17/23 <400 <37 ƚ <340 86 J <25 <40 3,100 230 <25 <34 ƚ 450 560 <30 110 5,000 4,800 1,100 20,800 BMDL
07/25/23 <400 <37 ƚ <340 48 J 40 J <40 3,900 280 <25 <34 ƚ 620 690 170 <34 ƚ 4,700 5,800 1,400 24,100 BMDL
04/17/23 6.7 J 15 <3.4 45 5.5 1.2 88 4.7 4.2 8.7 5.8 14 <0.30 <0.34 19 87 25 375 BMDL
07/25/23 <4.0 20 <3.4 40 8.5 1.2 120 6.5 6.2 7.9 7.2 20 1.5 <0.34 26 120 35 455 BMDL
04/17/23 <40 71 73 J 180 35 6.4 J 530 57 21 58 100 220 <3.0 <3.4 ƚ 370 1,300 420 2,900 BMDL
07/25/23 <20 61 <17 440 120 4.7 J 420 42 64 43 66 180 19 <1.7 ƚ 300 840 270 2,090 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)
GCL = Gross Contaminant Level
2L GWQS = NCAC T15A:02L Groundwater Quality Standards
Bold results indicate concentrations above 2L GWQS.
< = Less than Method Detection Limit
ƚ = The Method Detection Limit is above the 2L GWQS.
J = Detected but below the Reporting Limit (lowest calibration standard); result is an estimated concentration (CLP J-Flag).Diisopropyl Ether (DIPE)70,000
70 Tetrachloroethylene700
0.7
L = Laboratory fortified blank/laboratory control sample recovery and/or duplicate recovery are outside of control limits. Reported value for this compound is likely to be biased on the high
side (L-06 Flag).sec-ButylbenzeneWell ID
Contaminant of
Concern
AcetoneBenzene2-Butanone (MEK)n-Butylbenzene20,000
20
GCL (µg/L)
2L GWQS (µg/L)
6,000,000
6,000
6,000
6 All Other SM 6200B AnalytesEthylbenzeneIsopropylbenzene (Cumene)p-Isopropyltoluene (p-Cymene)Methyl tert-Butyl Ether (MTBE)Naphthalene n-PropylbenzeneStyrene Toluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal Xylenes26,100
70
70,000
70
5,900
70
8,800
70
80,000
600
30,500
70
11,700
25
5,000
1
4,000,000
4,000
MW-03
MW-02
MW-1
50,000
500
Varies
Varies
260,000
600
28,500
400
24,100
400
NCDEQ; 30656_Rural Hall Shell, Inc.; T5_Historical GW (SM 6200B)
CATLIN Project No. 222159
CATLIN Engineers and Scientists
August 2023

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

FIGURES
SITE LOCATION
BROAD ST
SU MM IT S T
US H
W
Y 52
Copyright:© 2013 National Geographic Society, i-cubed
FIGUREPROJECTTITLE
1RURAL HALL SHELL, INC7890 BROAD STREETRURAL HALL, NC SITE VICINITY MAP
2,000 0 2,000 4,0001,000
Feet
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY30656222159AUG 2023 AS SHOWN KMC/SJO
³
SITE LOCATION
BROAD ST
S U M M I T S T
1 ,5 0 0 F EET RADIUS
500FE E T RADIUS
POND
LUCYBRANCH
GRASSY CREEK
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
FIGUREPROJECTTITLE
2RURAL HALL SHELL7890 BROAD STREETRURAL HALL, NC POTENTIAL RECEPTOR MAP
500 0 500 1,000250
Feet
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY30656222159AUG 2023 AS SHOWN KMC/SJO
³
!>
!>
!>BROAD STS U M M I T S T
FORMER 7,500-GAL. GASOLINE UST
FORMER 10,000-GAL. GASOLINE UST
FORMER 8,300-GAL. GASOLINE UST
FORMER 1,000-GAL. WASTE OIL UST
FORMER DISPENSER ISLANDS
MW-1
!(IOE
!?
!(IOE
!(IOE
!(IOE
MW-02
MW-03
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
FIGUREPROJECTTITLE
3RURAL HALL SHELL, INC7890 BROAD STREETRURAL HALL, NC SITE MAP
30 0 30 6015
Feet
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY30656222159AUG 2023 AS SHOWN KMC/SJO
³
NOTES: 1. Well and tank locations were obtained from previous reports prepared by other consultants and are approximate.2. Utility locations were obtained from ESP Associates, Inc. and are approximate.
Approximate Location of Former UST System
Parcel Boundary
Monitoring Well (Type II)!>
LEGEND
!?
!(IOE
Water Valve
End of Interest
Unknown Line
Electric Line
Water Line
!>
!>
!><BROAD STS U M M I T S T
MW-1(80.70)
MW-02(80.91)
MW-03(80.48)
8
0
.
5
0
8
0.
7
0
8
0.6
0
8
0.
8
0
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
FIGUREPROJECTTITLE
4RURAL HALL SHELL, INC7890 BROAD STREETRURAL HALL, NC
GROUNDWATER ELEVATION –JULY 25, 2023
30 0 30 6015
Feet
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY30656222159AUG 2023 AS SHOWN KMC/SJO
³
NOTES: 1. Well and tank locations were obtained from previous reports prepared by other consultants and are approximate.2. The groundwater elevation contour interval is 0.10 feet.
Approximate Location of Former UST System
Parcel Boundary
Gauged Monitoring Well (Type II)!>
LEGEND
Groundwater FlowDirection
Groundwater Contour<GroundwaterElevation (Feet)(##)
!>
!>
!>BROAD STS U M M I T S T
MW-1
MW-02
MW-03
???????
?
ESTIMATED HORIZONTAL EXTENT OF 2L GWQS EXCEEDANCES
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
FIGUREPROJECTTITLE
5RURAL HALL SHELL, INC7890 BROAD STREETRURAL HALL, NC
MONITORING WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –JULY 25, 2023
30 0 30 6015
Feet
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY30656222159AUG 2023 AS SHOWN KMC/SJO
³
NOTE: Well and tank locations were obtained from previous reports prepared by other consultants and are approximate.
Approximate Location of Former UST System
Parcel Boundary
Sampled Monitoring Well (Type II)!>
LEGEND
Incident Name and No.: Rural Hall Shell, Inc. - 30656
DateCollected
07/25/23 <37 ƚ 48 J 40 J 3,900 280 <25 <34 ƚ 620 690 170 4,700 5,800 1,400 24,10007/25/23 20 40 8.5 120 6.5 6.2 7.9 7.2 20 1.5 26 120 35 45507/25/23 61 440 120 420 42 64 43 66 180 19 300 840 270 2,090
All results in micrograms per liter (µg/L).Bold results are above 2L GWQS. Refer to Table 4 for all results and notes. p-Isopropyltoluene (p-Cymene)8,80070 11,70025 26,10070 28,50040070,00070Styrene6,0006
MW-03 5,0001 Isopropylbenzene (Cumene)5,90070 80,000600 30,50070BenzeneGCL (µg/L)2L GWQS (µg/L)
Contaminant of Concern
MW-02 sec-Butylbenzene50,00050020,000 20
MW-1 TolueneSUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B
Total XylenesMethyl tert-Butyl Ether (MTBE)Naphthalene n-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene260,000600 24,100400
Well/ SampleID n-ButylbenzeneEthylbenzene
!>
!>
!>BROAD STS U M M I T S T
MW-1(<37 ƚ)
MW-02(20)
MW-03(61)(1)(50)???????
?
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
FIGUREPROJECTTITLE
6RURAL HALL SHELL, INC7890 BROAD STREETRURAL HALL, NC
ESTIMATED HORIZONTALEXTENT OF BENZENE –JULY 25, 2023
30 0 30 6015
Feet
INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY30656222159AUG 2023 AS SHOWN KMC/SJO
³
Approximate Location of Former UST System
Parcel Boundary
Sampled Monitoring Well (Type II)!>
LEGEND
NOTES: 1. Well and tank locations were obtained from previous reports prepared by other consultants and are approximate.2. 2L GWQS for benzene is 1 µg/L.
Benzene Concentration (µg/L)(##)
Benzene EstimatedIsoconcentration

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

APPENDICES

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

APPENDIX A HISTORICAL DATA
APPENDIX A HISTORICAL DATA (Terraquest, 2006)
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Project No. 222159 CATLIN Engineers and Scientists August 2023
APPENDIX A HISTORICAL DATA (Terraquest, 2006)
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Project No. 222159 CATLIN Engineers and Scientists August 2023

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

APPENDIX B SITE PHOTOGRAPHS
APPENDIX B SITE PHOTOGRAPHS – JULY 25, 2023
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

View of the site, facing southeast. (Label is incorrect)

View of MW-1, facing east.

APPENDIX B SITE PHOTOGRAPHS – JULY 25, 2023
NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

View of MW-02, facing east, southeast.

View of MW-03, facing south.

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

APPENDIX C
DAILY ACTIVITIES LOG AND
FIELD DATA SHEETS

CATLIN PROJECT: GAUGED BY:
CATLIN PROJECT # : DATE SAMPLED:
CLIENT'S NAME:
MW-1 8.70
19.3 1.420
NMT 4.260
28 7.099
2
Method:Bailed Purge Start Time:10:58
Required Bails for 3 Well Volumes:18 Purge Stop Time:11:06
Required Bails for 5 Well Volumes:30 Was Well Purged Dry?No
Number of Bails Removed:18 Sample Time:11:06
Groundwater Removed (gal):4.3
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
10:59 56.17 2.37 5.57 216.98 29.30
11:00 241.42 2.17 5.57 217.31 28.84
11:01 178.61 2.21 5.56 217.87 28.77
11:02 214.68 2.25 5.54 219.09 28.73
11:03 224.62 2.50 5.51 220.71 28.72
11:04 224.14 2.53 5.48 222.90 28.74
11:05 224.60 2.52 5.46 224.28 28.82
11:06 224.62 2.51 5.44 225.50 28.85
Laboratory: 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)
moderate turbidity light
brown HCO
Aqua Troll 600
Turbidity and Additional
Sampling Notes
ConTest
NCDEQ - SLP
Monitoring Well Information
N. Newman
7/25/2023
Rural Hall Shell, Inc.
222159.01
CATLIN PROJECT: GAUGED BY:
CATLIN PROJECT # : DATE SAMPLED:
CLIENT'S NAME:
MW-2 5.57
19.43 0.909
NMT 2.727
25 4.545
2
Method:Bailed Purge Start Time:11:15
Required Bails for 3 Well Volumes:12 Purge Stop Time:11:25
Required Bails for 5 Well Volumes:19 Was Well Purged Dry?No
Number of Bails Removed:12 Sample Time:11:25
Groundwater Removed (gal):2.9
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
11:19 264.46 2.44 5.91 215.00 29.02
11:20 189.26 2.55 5.95 211.18 28.65
11:21 243.62 2.59 6.00 205.34 28.55
11:22 241.21 2.62 5.98 203.74 28.55
11:23 241.18 2.66 5.99 200.11 28.61
Laboratory: Analysis:
Depth to Water (ft below TOC) One Well Volume (gal)
GROUNDWATER SAMPLING FORM
Rural Hall Shell, Inc.N. Newman
222159.01 7/25/2023
NCDEQ - SLP
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
6200BConTest
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
moderate turbidity light
brown
Laboratory Analysis Information
CATLIN PROJECT: GAUGED BY:
CATLIN PROJECT # : DATE SAMPLED:
CLIENT'S NAME:
MW-3 5.01
19.99 0.818
NMT 2.453
25 4.088
2
Method:Bailed Purge Start Time:10:43
Required Bails for 3 Well Volumes:11 Purge Stop Time:10:49
Required Bails for 5 Well Volumes:18 Was Well Purged Dry?No
Number of Bails Removed:11 Sample Time:10:50
Groundwater Removed (gal):2.6
Equipment Used:
Time
Specific
Cond.
(µS/cm)
Dissolved
Oxygen
(mg/L)
pH
(Standard
Units)
ORP
(mV)
Temperature
(Co)
10:44 226.46 2.28 6.02 246.37 29.71
10:45 221.01 1.97 6.02 244.30 28.97
10:46 221.41 1.93 5.99 245.34 28.85
10:47 221.01 1.94 5.99 240.90 28.86
10:48 221.29 1.92 5.98 235.00 28.83
10:49 221.74 1.90 5.97 230.42 28.83
10:50 222.10 1.90 5.96 224.84 28.81
Laboratory: Analysis:
Depth to Water (ft below TOC) One Well Volume (gal)
GROUNDWATER SAMPLING FORM
Rural Hall Shell, Inc.N. Newman
222159.01 7/25/2023
NCDEQ - SLP
Monitoring Well Information
Well Data Volume of Groundwater in Well
Well ID Water Column (ft below TOC)
6200BConTest
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
moderate turbidity light
brown
Laboratory Analysis Information

NCDEQ; 30656_Rural Hall Shell, Inc. CATLIN Engineers and Scientists
CATLIN Project No. 222159 August 2023

APPENDIX D

LABORATORY ANALYTICAL REPORT AND
CHAIN OF CUSTODY DOCUMENT

39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
July 31, 2023
Sean O’Neil
CATLIN Engineers & Scientists
1044 Washington Street
Raleigh, NC 27605
Project Location: Rural Hall
Client Job Number:
Project Number: 222159
Laboratory Work Order Number: 23G3493
Enclosed are results of analyses for samples as received by the laboratory on July 26, 2023. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kaitlyn A. Feliciano
Project Manager
Page 1 of 26
Table of Contents
Table of Contents
Sample Summary 3
Hits Only Report 4
Case Narrative 6
Sample Results 7
23G3493-01 7
23G3493-02 9
23G3493-03 11
23G3493-04 13
Sample Preparation Information 15
QC Data 16
Volatile Organic Compounds by GC/MS 16
B347337 16
Flag/Qualifier Summary 20
Certifications 21
Chain of Custody/Sample Receipt 23
Page 2 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
7/31/2023
CATLIN Engineers & Scientists
1044 Washington Street
Raleigh, NC 27605
ATTN: Sean O’Neil
222159
23G3493
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
Rural Hall
220809-1
MW-1 23G3493-01 Ground Water SM21-23 6200B
MW-02 23G3493-02 Ground Water SM21-23 6200B
MW-03 23G3493-03 Ground Water SM21-23 6200B
FB 23G3493-04 Field Blank SM21-23 6200B
[TOC_1]Sample Summary[TOC]
Page 3 of 26
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:
Analyte Results/Qual RL Units Method
23G3493-01MW-1
DL
1,2,4-Trimethylbenzene 5800 100 g/L SM21-23 6200B40
1,3,5-Trimethylbenzene 1400 100 g/L SM21-23 6200B30
Ethylbenzene 3900 100 g/L SM21-23 6200B44
Isopropylbenzene (Cumene)280 100 g/L SM21-23 6200B30
m+p Xylene 17000 200 g/L SM21-23 6200B98
Naphthalene 620 100 g/L SM21-23 6200B76
n-Butylbenzene 48 100 g/L SM21-23 6200BJ30
n-Propylbenzene 690 100 g/L SM21-23 6200B25
o-Xylene 7100 100 g/L SM21-23 6200B49
sec-Butylbenzene 40 100 g/L SM21-23 6200BJ25
Styrene 170 100 g/L SM21-23 6200B30
Toluene 4700 100 g/L SM21-23 6200B45
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
23G3493-02MW-02
DL
1,2,4-Trimethylbenzene 120 1.0 g/L SM21-23 6200B0.40
1,3,5-Trimethylbenzene 35 1.0 g/L SM21-23 6200B0.30
Benzene 20 1.0 g/L SM21-23 6200B0.37
Diisopropyl Ether (DIPE)1.2 1.0 g/L SM21-23 6200B0.40
Ethylbenzene 120 1.0 g/L SM21-23 6200B0.44
Isopropylbenzene (Cumene)6.5 1.0 g/L SM21-23 6200B0.30
m+p Xylene 370 2.0 g/L SM21-23 6200B0.98
Methyl tert-Butyl Ether (MTBE)7.9 1.0 g/L SM21-23 6200B0.34
Naphthalene 7.2 1.0 g/L SM21-23 6200B0.76
n-Butylbenzene 40 1.0 g/L SM21-23 6200B0.30
n-Propylbenzene 20 1.0 g/L SM21-23 6200B0.25
o-Xylene 85 1.0 g/L SM21-23 6200B0.49
p-Isopropyltoluene (p-Cymene)6.2 1.0 g/L SM21-23 6200B0.25
sec-Butylbenzene 8.5 1.0 g/L SM21-23 6200B0.25
Styrene 1.5 1.0 g/L SM21-23 6200B0.30
Toluene 26 1.0 g/L SM21-23 6200B0.45
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
23G3493-03MW-03
DL
1,2,4-Trimethylbenzene 840 5.0 g/L SM21-23 6200B2.0
1,3,5-Trimethylbenzene 270 5.0 g/L SM21-23 6200B1.5
Benzene 61 5.0 g/L SM21-23 6200B1.8
Diisopropyl Ether (DIPE)4.7 5.0 g/L SM21-23 6200BJ2.0
Ethylbenzene 420 5.0 g/L SM21-23 6200B2.2
Isopropylbenzene (Cumene)42 5.0 g/L SM21-23 6200B1.5
m+p Xylene 1600 10 g/L SM21-23 6200B4.9
Methyl tert-Butyl Ether (MTBE)43 5.0 g/L SM21-23 6200B1.7
Naphthalene 66 5.0 g/L SM21-23 6200B3.8
n-Butylbenzene 440 5.0 g/L SM21-23 6200B1.5
n-Propylbenzene 180 5.0 g/L SM21-23 6200B1.2
o-Xylene 490 5.0 g/L SM21-23 6200B2.4
p-Isopropyltoluene (p-Cymene)64 5.0 g/L SM21-23 6200B1.3
sec-Butylbenzene 120 5.0 g/L SM21-23 6200B1.3
Styrene 19 5.0 g/L SM21-23 6200B1.5
Toluene 300 5.0 g/L SM21-23 6200B2.2
Page 4 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
23G3493-04FB
DL
Acetone 4.0 50 g/L SM21-23 6200BL-04, J 2.0
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 26
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 samples 23G3493-01,02+03 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
Acetone
23G3493-01[MW-1], 23G3493-02[MW-02], 23G3493-03[MW-03], 23G3493-04[FB], B347337-BLK1, B347337-BS1, B347337-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
Trichlorofluoromethane (Freon 11)
B347337-BS1
Elevated reporting limit due to high concentration of target compounds.
Analyte & Samples(s) Qualified:
RL-11
23G3493-01[MW-1], 23G3493-02[MW-02], 23G3493-03[MW-03]
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.
Tod E. Kopyscinski
Laboratory Director
Page 6 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-01
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 7/25/2023 11:06
[TOC_2]23G3493-01[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 10000 7/29/23 4:56 EEHg/L400 7/28/23SM21-23 6200B200L-04Acetone
ND 100 7/29/23 4:56 EEHg/L37 7/28/23SM21-23 6200B200Benzene
ND 100 7/29/23 4:56 EEHg/L30 7/28/23SM21-23 6200B200Bromobenzene
ND 100 7/29/23 4:56 EEHg/L57 7/28/23SM21-23 6200B200Bromochloromethane
ND 100 7/29/23 4:56 EEHg/L32 7/28/23SM21-23 6200B200Bromodichloromethane
ND 100 7/29/23 4:56 EEHg/L82 7/28/23SM21-23 6200B200Bromoform
ND 400 7/29/23 4:56 EEHg/L260 7/28/23SM21-23 6200B200Bromomethane
ND 1000 7/29/23 4:56 EEHg/L340 7/28/23SM21-23 6200B2002-Butanone (MEK)
48 100 7/29/23 4:56 EEHg/L30 7/28/23SM21-23 6200B200Jn-Butylbenzene
40 100 7/29/23 4:56 EEHg/L25 7/28/23SM21-23 6200B200Jsec-Butylbenzene
ND 100 7/29/23 4:56 EEHg/L28 7/28/23SM21-23 6200B200tert-Butylbenzene
ND 100 7/29/23 4:56 EEHg/L33 7/28/23SM21-23 6200B200Carbon Tetrachloride
ND 100 7/29/23 4:56 EEHg/L24 7/28/23SM21-23 6200B200Chlorobenzene
ND 10000 7/29/23 4:56 EEHg/L4100 7/28/23SM21-23 6200B200Ethanol
ND 100 7/29/23 4:56 EEHg/L40 7/28/23SM21-23 6200B200Chlorodibromomethane
ND 100 7/29/23 4:56 EEHg/L68 7/28/23SM21-23 6200B200Chloroethane
ND 100 7/29/23 4:56 EEHg/L28 7/28/23SM21-23 6200B200Chloroform
ND 120 7/29/23 4:56 EEHg/L100 7/28/23SM21-23 6200B200Chloromethane
ND 100 7/29/23 4:56 EEHg/L31 7/28/23SM21-23 6200B2002-Chlorotoluene
ND 100 7/29/23 4:56 EEHg/L31 7/28/23SM21-23 6200B2004-Chlorotoluene
ND 100 7/29/23 4:56 EEHg/L32 7/28/23SM21-23 6200B2001,2-Dibromoethane (EDB)
ND 100 7/29/23 4:56 EEHg/L26 7/28/23SM21-23 6200B2001,2-Dichlorobenzene
ND 100 7/29/23 4:56 EEHg/L27 7/28/23SM21-23 6200B2001,3-Dichlorobenzene
ND 100 7/29/23 4:56 EEHg/L26 7/28/23SM21-23 6200B2001,4-Dichlorobenzene
ND 100 7/29/23 4:56 EEHg/L32 7/28/23SM21-23 6200B200Dichlorodifluoromethane (Freon 12)
ND 100 7/29/23 4:56 EEHg/L27 7/28/23SM21-23 6200B2001,1-Dichloroethane
ND 200 7/29/23 4:56 EEHg/L61 7/28/23SM21-23 6200B2001,2-Dichloroethane
ND 100 7/29/23 4:56 EEHg/L28 7/28/23SM21-23 6200B2001,1-Dichloroethylene
ND 100 7/29/23 4:56 EEHg/L28 7/28/23SM21-23 6200B200cis-1,2-Dichloroethylene
ND 100 7/29/23 4:56 EEHg/L34 7/28/23SM21-23 6200B200trans-1,2-Dichloroethylene
ND 100 7/29/23 4:56 EEHg/L39 7/28/23SM21-23 6200B2001,2-Dichloropropane
ND 100 7/29/23 4:56 EEHg/L23 7/28/23SM21-23 6200B2001,3-Dichloropropane
ND 100 7/29/23 4:56 EEHg/L70 7/28/23SM21-23 6200B2002,2-Dichloropropane
ND 100 7/29/23 4:56 EEHg/L30 7/28/23SM21-23 6200B2001,1-Dichloropropene
ND 100 7/29/23 4:56 EEHg/L33 7/28/23SM21-23 6200B200cis-1,3-Dichloropropene
ND 100 7/29/23 4:56 EEHg/L28 7/28/23SM21-23 6200B200trans-1,3-Dichloropropene
ND 100 7/29/23 4:56 EEHg/L40 7/28/23SM21-23 6200B200Diisopropyl Ether (DIPE)
3900 100 7/29/23 4:56 EEHg/L44 7/28/23SM21-23 6200B200Ethylbenzene
ND 1000 7/29/23 4:56 EEHg/L240 7/28/23SM21-23 6200B2002-Hexanone (MBK)
280 100 7/29/23 4:56 EEHg/L30 7/28/23SM21-23 6200B200Isopropylbenzene (Cumene)
ND 100 7/29/23 4:56 EEHg/L25 7/28/23SM21-23 6200B200p-Isopropyltoluene (p-Cymene)
ND 100 7/29/23 4:56 EEHg/L34 7/28/23SM21-23 6200B200Methyl tert-Butyl Ether (MTBE)
ND 1000 7/29/23 4:56 EEHg/L35 7/28/23SM21-23 6200B200Methylene Chloride
ND 1000 7/29/23 4:56 EEHg/L260 7/28/23SM21-23 6200B2004-Methyl-2-pentanone (MIBK)
[TOC_1]Sample Results[TOC]
Page 7 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-01
Field Sample #: MW-1
Sample Matrix: Ground Water
Sampled: 7/25/2023 11:06
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
620 100 7/29/23 4:56 EEHg/L76 7/28/23SM21-23 6200B200Naphthalene
690 100 7/29/23 4:56 EEHg/L25 7/28/23SM21-23 6200B200n-Propylbenzene
170 100 7/29/23 4:56 EEHg/L30 7/28/23SM21-23 6200B200Styrene
ND 100 7/29/23 4:56 EEHg/L27 7/28/23SM21-23 6200B2001,1,2,2-Tetrachloroethane
ND 100 7/29/23 4:56 EEHg/L34 7/28/23SM21-23 6200B200Tetrachloroethylene
4700 100 7/29/23 4:56 EEHg/L45 7/28/23SM21-23 6200B200Toluene
ND 200 7/29/23 4:56 EEHg/L68 7/28/23SM21-23 6200B2001,2,3-Trichlorobenzene
ND 100 7/29/23 4:56 EEHg/L60 7/28/23SM21-23 6200B2001,2,4-Trichlorobenzene
ND 100 7/29/23 4:56 EEHg/L30 7/28/23SM21-23 6200B2001,1,1-Trichloroethane
ND 100 7/29/23 4:56 EEHg/L38 7/28/23SM21-23 6200B2001,1,2-Trichloroethane
ND 100 7/29/23 4:56 EEHg/L35 7/28/23SM21-23 6200B200Trichloroethylene
ND 100 7/29/23 4:56 EEHg/L31 7/28/23SM21-23 6200B200Trichlorofluoromethane (Freon 11)
ND 100 7/29/23 4:56 EEHg/L55 7/28/23SM21-23 6200B2001,2,3-Trichloropropane
5800 100 7/29/23 4:56 EEHg/L40 7/28/23SM21-23 6200B2001,2,4-Trimethylbenzene
1400 100 7/29/23 4:56 EEHg/L30 7/28/23SM21-23 6200B2001,3,5-Trimethylbenzene
ND 4000 7/29/23 4:56 EEHg/L330 7/28/23SM21-23 6200B200Vinyl Acetate
ND 100 7/29/23 4:56 EEHg/L47 7/28/23SM21-23 6200B200Vinyl Chloride
17000 200 7/29/23 4:56 EEHg/L98 7/28/23SM21-23 6200B200m+p Xylene
7100 100 7/29/23 4:56 EEHg/L49 7/28/23SM21-23 6200B200o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 87.2 7/29/23 4:5670-130
Toluene-d8 99.3 7/29/23 4:5670-130
4-Bromofluorobenzene 95.0 7/29/23 4:5670-130
Page 8 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-02
Field Sample #: MW-02
Sample Matrix: Ground Water
Sampled: 7/25/2023 11:25
[TOC_2]23G3493-02[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 100 7/29/23 5:23 EEHg/L4.0 7/28/23SM21-23 6200B2L-04Acetone
20 1.0 7/29/23 5:23 EEHg/L0.37 7/28/23SM21-23 6200B2Benzene
ND 1.0 7/29/23 5:23 EEHg/L0.30 7/28/23SM21-23 6200B2Bromobenzene
ND 1.0 7/29/23 5:23 EEHg/L0.57 7/28/23SM21-23 6200B2Bromochloromethane
ND 1.0 7/29/23 5:23 EEHg/L0.32 7/28/23SM21-23 6200B2Bromodichloromethane
ND 1.0 7/29/23 5:23 EEHg/L0.82 7/28/23SM21-23 6200B2Bromoform
ND 4.0 7/29/23 5:23 EEHg/L2.6 7/28/23SM21-23 6200B2Bromomethane
ND 10 7/29/23 5:23 EEHg/L3.4 7/28/23SM21-23 6200B22-Butanone (MEK)
40 1.0 7/29/23 5:23 EEHg/L0.30 7/28/23SM21-23 6200B2n-Butylbenzene
8.5 1.0 7/29/23 5:23 EEHg/L0.25 7/28/23SM21-23 6200B2sec-Butylbenzene
ND 1.0 7/29/23 5:23 EEHg/L0.28 7/28/23SM21-23 6200B2tert-Butylbenzene
ND 1.0 7/29/23 5:23 EEHg/L0.33 7/28/23SM21-23 6200B2Carbon Tetrachloride
ND 1.0 7/29/23 5:23 EEHg/L0.24 7/28/23SM21-23 6200B2Chlorobenzene
ND 100 7/29/23 5:23 EEHg/L41 7/28/23SM21-23 6200B2Ethanol
ND 1.0 7/29/23 5:23 EEHg/L0.40 7/28/23SM21-23 6200B2Chlorodibromomethane
ND 1.0 7/29/23 5:23 EEHg/L0.68 7/28/23SM21-23 6200B2Chloroethane
ND 1.0 7/29/23 5:23 EEHg/L0.28 7/28/23SM21-23 6200B2Chloroform
ND 1.2 7/29/23 5:23 EEHg/L1.0 7/28/23SM21-23 6200B2Chloromethane
ND 1.0 7/29/23 5:23 EEHg/L0.31 7/28/23SM21-23 6200B22-Chlorotoluene
ND 1.0 7/29/23 5:23 EEHg/L0.31 7/28/23SM21-23 6200B24-Chlorotoluene
ND 1.0 7/29/23 5:23 EEHg/L0.32 7/28/23SM21-23 6200B21,2-Dibromoethane (EDB)
ND 1.0 7/29/23 5:23 EEHg/L0.26 7/28/23SM21-23 6200B21,2-Dichlorobenzene
ND 1.0 7/29/23 5:23 EEHg/L0.27 7/28/23SM21-23 6200B21,3-Dichlorobenzene
ND 1.0 7/29/23 5:23 EEHg/L0.26 7/28/23SM21-23 6200B21,4-Dichlorobenzene
ND 1.0 7/29/23 5:23 EEHg/L0.32 7/28/23SM21-23 6200B2Dichlorodifluoromethane (Freon 12)
ND 1.0 7/29/23 5:23 EEHg/L0.27 7/28/23SM21-23 6200B21,1-Dichloroethane
ND 2.0 7/29/23 5:23 EEHg/L0.61 7/28/23SM21-23 6200B21,2-Dichloroethane
ND 1.0 7/29/23 5:23 EEHg/L0.28 7/28/23SM21-23 6200B21,1-Dichloroethylene
ND 1.0 7/29/23 5:23 EEHg/L0.28 7/28/23SM21-23 6200B2cis-1,2-Dichloroethylene
ND 1.0 7/29/23 5:23 EEHg/L0.34 7/28/23SM21-23 6200B2trans-1,2-Dichloroethylene
ND 1.0 7/29/23 5:23 EEHg/L0.39 7/28/23SM21-23 6200B21,2-Dichloropropane
ND 1.0 7/29/23 5:23 EEHg/L0.23 7/28/23SM21-23 6200B21,3-Dichloropropane
ND 1.0 7/29/23 5:23 EEHg/L0.70 7/28/23SM21-23 6200B22,2-Dichloropropane
ND 1.0 7/29/23 5:23 EEHg/L0.30 7/28/23SM21-23 6200B21,1-Dichloropropene
ND 1.0 7/29/23 5:23 EEHg/L0.33 7/28/23SM21-23 6200B2cis-1,3-Dichloropropene
ND 1.0 7/29/23 5:23 EEHg/L0.28 7/28/23SM21-23 6200B2trans-1,3-Dichloropropene
1.2 1.0 7/29/23 5:23 EEHg/L0.40 7/28/23SM21-23 6200B2Diisopropyl Ether (DIPE)
120 1.0 7/29/23 5:23 EEHg/L0.44 7/28/23SM21-23 6200B2Ethylbenzene
ND 10 7/29/23 5:23 EEHg/L2.4 7/28/23SM21-23 6200B22-Hexanone (MBK)
6.5 1.0 7/29/23 5:23 EEHg/L0.30 7/28/23SM21-23 6200B2Isopropylbenzene (Cumene)
6.2 1.0 7/29/23 5:23 EEHg/L0.25 7/28/23SM21-23 6200B2p-Isopropyltoluene (p-Cymene)
7.9 1.0 7/29/23 5:23 EEHg/L0.34 7/28/23SM21-23 6200B2Methyl tert-Butyl Ether (MTBE)
ND 10 7/29/23 5:23 EEHg/L0.35 7/28/23SM21-23 6200B2Methylene Chloride
ND 10 7/29/23 5:23 EEHg/L2.6 7/28/23SM21-23 6200B24-Methyl-2-pentanone (MIBK)
Page 9 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-02
Field Sample #: MW-02
Sample Matrix: Ground Water
Sampled: 7/25/2023 11:25
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
7.2 1.0 7/29/23 5:23 EEHg/L0.76 7/28/23SM21-23 6200B2Naphthalene
20 1.0 7/29/23 5:23 EEHg/L0.25 7/28/23SM21-23 6200B2n-Propylbenzene
1.5 1.0 7/29/23 5:23 EEHg/L0.30 7/28/23SM21-23 6200B2Styrene
ND 1.0 7/29/23 5:23 EEHg/L0.27 7/28/23SM21-23 6200B21,1,2,2-Tetrachloroethane
ND 1.0 7/29/23 5:23 EEHg/L0.34 7/28/23SM21-23 6200B2Tetrachloroethylene
26 1.0 7/29/23 5:23 EEHg/L0.45 7/28/23SM21-23 6200B2Toluene
ND 2.0 7/29/23 5:23 EEHg/L0.68 7/28/23SM21-23 6200B21,2,3-Trichlorobenzene
ND 1.0 7/29/23 5:23 EEHg/L0.60 7/28/23SM21-23 6200B21,2,4-Trichlorobenzene
ND 1.0 7/29/23 5:23 EEHg/L0.30 7/28/23SM21-23 6200B21,1,1-Trichloroethane
ND 1.0 7/29/23 5:23 EEHg/L0.38 7/28/23SM21-23 6200B21,1,2-Trichloroethane
ND 1.0 7/29/23 5:23 EEHg/L0.35 7/28/23SM21-23 6200B2Trichloroethylene
ND 1.0 7/29/23 5:23 EEHg/L0.31 7/28/23SM21-23 6200B2Trichlorofluoromethane (Freon 11)
ND 1.0 7/29/23 5:23 EEHg/L0.55 7/28/23SM21-23 6200B21,2,3-Trichloropropane
120 1.0 7/29/23 5:23 EEHg/L0.40 7/28/23SM21-23 6200B21,2,4-Trimethylbenzene
35 1.0 7/29/23 5:23 EEHg/L0.30 7/28/23SM21-23 6200B21,3,5-Trimethylbenzene
ND 40 7/29/23 5:23 EEHg/L3.3 7/28/23SM21-23 6200B2Vinyl Acetate
ND 1.0 7/29/23 5:23 EEHg/L0.47 7/28/23SM21-23 6200B2Vinyl Chloride
370 2.0 7/29/23 5:23 EEHg/L0.98 7/28/23SM21-23 6200B2m+p Xylene
85 1.0 7/29/23 5:23 EEHg/L0.49 7/28/23SM21-23 6200B2o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 87.6 7/29/23 5:2370-130
Toluene-d8 97.2 7/29/23 5:2370-130
4-Bromofluorobenzene 95.4 7/29/23 5:2370-130
Page 10 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-03
Field Sample #: MW-03
Sample Matrix: Ground Water
Sampled: 7/25/2023 10:50
[TOC_2]23G3493-03[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 500 7/29/23 5:51 EEHg/L20 7/28/23SM21-23 6200B10L-04Acetone
61 5.0 7/29/23 5:51 EEHg/L1.8 7/28/23SM21-23 6200B10Benzene
ND 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B10Bromobenzene
ND 5.0 7/29/23 5:51 EEHg/L2.8 7/28/23SM21-23 6200B10Bromochloromethane
ND 5.0 7/29/23 5:51 EEHg/L1.6 7/28/23SM21-23 6200B10Bromodichloromethane
ND 5.0 7/29/23 5:51 EEHg/L4.1 7/28/23SM21-23 6200B10Bromoform
ND 20 7/29/23 5:51 EEHg/L13 7/28/23SM21-23 6200B10Bromomethane
ND 50 7/29/23 5:51 EEHg/L17 7/28/23SM21-23 6200B102-Butanone (MEK)
440 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B10n-Butylbenzene
120 5.0 7/29/23 5:51 EEHg/L1.3 7/28/23SM21-23 6200B10sec-Butylbenzene
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B10tert-Butylbenzene
ND 5.0 7/29/23 5:51 EEHg/L1.6 7/28/23SM21-23 6200B10Carbon Tetrachloride
ND 5.0 7/29/23 5:51 EEHg/L1.2 7/28/23SM21-23 6200B10Chlorobenzene
ND 500 7/29/23 5:51 EEHg/L200 7/28/23SM21-23 6200B10Ethanol
ND 5.0 7/29/23 5:51 EEHg/L2.0 7/28/23SM21-23 6200B10Chlorodibromomethane
ND 5.0 7/29/23 5:51 EEHg/L3.4 7/28/23SM21-23 6200B10Chloroethane
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B10Chloroform
ND 6.0 7/29/23 5:51 EEHg/L5.0 7/28/23SM21-23 6200B10Chloromethane
ND 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B102-Chlorotoluene
ND 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B104-Chlorotoluene
ND 5.0 7/29/23 5:51 EEHg/L1.6 7/28/23SM21-23 6200B101,2-Dibromoethane (EDB)
ND 5.0 7/29/23 5:51 EEHg/L1.3 7/28/23SM21-23 6200B101,2-Dichlorobenzene
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B101,3-Dichlorobenzene
ND 5.0 7/29/23 5:51 EEHg/L1.3 7/28/23SM21-23 6200B101,4-Dichlorobenzene
ND 5.0 7/29/23 5:51 EEHg/L1.6 7/28/23SM21-23 6200B10Dichlorodifluoromethane (Freon 12)
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B101,1-Dichloroethane
ND 10 7/29/23 5:51 EEHg/L3.0 7/28/23SM21-23 6200B101,2-Dichloroethane
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B101,1-Dichloroethylene
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B10cis-1,2-Dichloroethylene
ND 5.0 7/29/23 5:51 EEHg/L1.7 7/28/23SM21-23 6200B10trans-1,2-Dichloroethylene
ND 5.0 7/29/23 5:51 EEHg/L1.9 7/28/23SM21-23 6200B101,2-Dichloropropane
ND 5.0 7/29/23 5:51 EEHg/L1.2 7/28/23SM21-23 6200B101,3-Dichloropropane
ND 5.0 7/29/23 5:51 EEHg/L3.5 7/28/23SM21-23 6200B102,2-Dichloropropane
ND 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B101,1-Dichloropropene
ND 5.0 7/29/23 5:51 EEHg/L1.6 7/28/23SM21-23 6200B10cis-1,3-Dichloropropene
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B10trans-1,3-Dichloropropene
4.7 5.0 7/29/23 5:51 EEHg/L2.0 7/28/23SM21-23 6200B10JDiisopropyl Ether (DIPE)
420 5.0 7/29/23 5:51 EEHg/L2.2 7/28/23SM21-23 6200B10Ethylbenzene
ND 50 7/29/23 5:51 EEHg/L12 7/28/23SM21-23 6200B102-Hexanone (MBK)
42 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B10Isopropylbenzene (Cumene)
64 5.0 7/29/23 5:51 EEHg/L1.3 7/28/23SM21-23 6200B10p-Isopropyltoluene (p-Cymene)
43 5.0 7/29/23 5:51 EEHg/L1.7 7/28/23SM21-23 6200B10Methyl tert-Butyl Ether (MTBE)
ND 50 7/29/23 5:51 EEHg/L1.8 7/28/23SM21-23 6200B10Methylene Chloride
ND 50 7/29/23 5:51 EEHg/L13 7/28/23SM21-23 6200B104-Methyl-2-pentanone (MIBK)
Page 11 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-03
Field Sample #: MW-03
Sample Matrix: Ground Water
Sampled: 7/25/2023 10:50
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
66 5.0 7/29/23 5:51 EEHg/L3.8 7/28/23SM21-23 6200B10Naphthalene
180 5.0 7/29/23 5:51 EEHg/L1.2 7/28/23SM21-23 6200B10n-Propylbenzene
19 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B10Styrene
ND 5.0 7/29/23 5:51 EEHg/L1.4 7/28/23SM21-23 6200B101,1,2,2-Tetrachloroethane
ND 5.0 7/29/23 5:51 EEHg/L1.7 7/28/23SM21-23 6200B10Tetrachloroethylene
300 5.0 7/29/23 5:51 EEHg/L2.2 7/28/23SM21-23 6200B10Toluene
ND 10 7/29/23 5:51 EEHg/L3.4 7/28/23SM21-23 6200B101,2,3-Trichlorobenzene
ND 5.0 7/29/23 5:51 EEHg/L3.0 7/28/23SM21-23 6200B101,2,4-Trichlorobenzene
ND 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B101,1,1-Trichloroethane
ND 5.0 7/29/23 5:51 EEHg/L1.9 7/28/23SM21-23 6200B101,1,2-Trichloroethane
ND 5.0 7/29/23 5:51 EEHg/L1.7 7/28/23SM21-23 6200B10Trichloroethylene
ND 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B10Trichlorofluoromethane (Freon 11)
ND 5.0 7/29/23 5:51 EEHg/L2.8 7/28/23SM21-23 6200B101,2,3-Trichloropropane
840 5.0 7/29/23 5:51 EEHg/L2.0 7/28/23SM21-23 6200B101,2,4-Trimethylbenzene
270 5.0 7/29/23 5:51 EEHg/L1.5 7/28/23SM21-23 6200B101,3,5-Trimethylbenzene
ND 200 7/29/23 5:51 EEHg/L17 7/28/23SM21-23 6200B10Vinyl Acetate
ND 5.0 7/29/23 5:51 EEHg/L2.4 7/28/23SM21-23 6200B10Vinyl Chloride
1600 10 7/29/23 5:51 EEHg/L4.9 7/28/23SM21-23 6200B10m+p Xylene
490 5.0 7/29/23 5:51 EEHg/L2.4 7/28/23SM21-23 6200B10o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 88.0 7/29/23 5:5170-130
Toluene-d8 96.0 7/29/23 5:5170-130
4-Bromofluorobenzene 102 7/29/23 5:5170-130
Page 12 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-04
Field Sample #: FB
Sample Matrix: Field Blank
Sampled: 7/25/2023 12:00
[TOC_2]23G3493-04[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
4.0 50 7/28/23 22:00 EEHg/L2.0 7/28/23SM21-23 6200B1L-04, JAcetone
ND 0.50 7/28/23 22:00 EEHg/L0.18 7/28/23SM21-23 6200B1Benzene
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B1Bromobenzene
ND 0.50 7/28/23 22:00 EEHg/L0.28 7/28/23SM21-23 6200B1Bromochloromethane
ND 0.50 7/28/23 22:00 EEHg/L0.16 7/28/23SM21-23 6200B1Bromodichloromethane
ND 0.50 7/28/23 22:00 EEHg/L0.41 7/28/23SM21-23 6200B1Bromoform
ND 2.0 7/28/23 22:00 EEHg/L1.3 7/28/23SM21-23 6200B1Bromomethane
ND 5.0 7/28/23 22:00 EEHg/L1.7 7/28/23SM21-23 6200B12-Butanone (MEK)
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B1n-Butylbenzene
ND 0.50 7/28/23 22:00 EEHg/L0.13 7/28/23SM21-23 6200B1sec-Butylbenzene
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B1tert-Butylbenzene
ND 0.50 7/28/23 22:00 EEHg/L0.16 7/28/23SM21-23 6200B1Carbon Tetrachloride
ND 0.50 7/28/23 22:00 EEHg/L0.12 7/28/23SM21-23 6200B1Chlorobenzene
ND 50 7/28/23 22:00 EEHg/L20 7/28/23SM21-23 6200B1Ethanol
ND 0.50 7/28/23 22:00 EEHg/L0.20 7/28/23SM21-23 6200B1Chlorodibromomethane
ND 0.50 7/28/23 22:00 EEHg/L0.34 7/28/23SM21-23 6200B1Chloroethane
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B1Chloroform
ND 0.60 7/28/23 22:00 EEHg/L0.50 7/28/23SM21-23 6200B1Chloromethane
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B12-Chlorotoluene
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B14-Chlorotoluene
ND 0.50 7/28/23 22:00 EEHg/L0.16 7/28/23SM21-23 6200B11,2-Dibromoethane (EDB)
ND 0.50 7/28/23 22:00 EEHg/L0.13 7/28/23SM21-23 6200B11,2-Dichlorobenzene
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B11,3-Dichlorobenzene
ND 0.50 7/28/23 22:00 EEHg/L0.13 7/28/23SM21-23 6200B11,4-Dichlorobenzene
ND 0.50 7/28/23 22:00 EEHg/L0.16 7/28/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B11,1-Dichloroethane
ND 1.0 7/28/23 22:00 EEHg/L0.30 7/28/23SM21-23 6200B11,2-Dichloroethane
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B11,1-Dichloroethylene
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B1cis-1,2-Dichloroethylene
ND 0.50 7/28/23 22:00 EEHg/L0.17 7/28/23SM21-23 6200B1trans-1,2-Dichloroethylene
ND 0.50 7/28/23 22:00 EEHg/L0.19 7/28/23SM21-23 6200B11,2-Dichloropropane
ND 0.50 7/28/23 22:00 EEHg/L0.12 7/28/23SM21-23 6200B11,3-Dichloropropane
ND 0.50 7/28/23 22:00 EEHg/L0.35 7/28/23SM21-23 6200B12,2-Dichloropropane
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B11,1-Dichloropropene
ND 0.50 7/28/23 22:00 EEHg/L0.16 7/28/23SM21-23 6200B1cis-1,3-Dichloropropene
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B1trans-1,3-Dichloropropene
ND 0.50 7/28/23 22:00 EEHg/L0.20 7/28/23SM21-23 6200B1Diisopropyl Ether (DIPE)
ND 0.50 7/28/23 22:00 EEHg/L0.22 7/28/23SM21-23 6200B1Ethylbenzene
ND 5.0 7/28/23 22:00 EEHg/L1.2 7/28/23SM21-23 6200B12-Hexanone (MBK)
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B1Isopropylbenzene (Cumene)
ND 0.50 7/28/23 22:00 EEHg/L0.13 7/28/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 7/28/23 22:00 EEHg/L0.17 7/28/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 7/28/23 22:00 EEHg/L0.18 7/28/23SM21-23 6200B1Methylene Chloride
ND 5.0 7/28/23 22:00 EEHg/L1.3 7/28/23SM21-23 6200B14-Methyl-2-pentanone (MIBK)
Page 13 of 26
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 7/26/2023
Work Order: 23G3493Sample Description:Project Location: Rural Hall
Sample ID: 23G3493-04
Field Sample #: FB
Sample Matrix: Field Blank
Sampled: 7/25/2023 12:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 7/28/23 22:00 EEHg/L0.38 7/28/23SM21-23 6200B1Naphthalene
ND 0.50 7/28/23 22:00 EEHg/L0.12 7/28/23SM21-23 6200B1n-Propylbenzene
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B1Styrene
ND 0.50 7/28/23 22:00 EEHg/L0.14 7/28/23SM21-23 6200B11,1,2,2-Tetrachloroethane
ND 0.50 7/28/23 22:00 EEHg/L0.17 7/28/23SM21-23 6200B1Tetrachloroethylene
ND 0.50 7/28/23 22:00 EEHg/L0.22 7/28/23SM21-23 6200B1Toluene
ND 1.0 7/28/23 22:00 EEHg/L0.34 7/28/23SM21-23 6200B11,2,3-Trichlorobenzene
ND 0.50 7/28/23 22:00 EEHg/L0.30 7/28/23SM21-23 6200B11,2,4-Trichlorobenzene
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B11,1,1-Trichloroethane
ND 0.50 7/28/23 22:00 EEHg/L0.19 7/28/23SM21-23 6200B11,1,2-Trichloroethane
ND 0.50 7/28/23 22:00 EEHg/L0.17 7/28/23SM21-23 6200B1Trichloroethylene
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 7/28/23 22:00 EEHg/L0.28 7/28/23SM21-23 6200B11,2,3-Trichloropropane
ND 0.50 7/28/23 22:00 EEHg/L0.20 7/28/23SM21-23 6200B11,2,4-Trimethylbenzene
ND 0.50 7/28/23 22:00 EEHg/L0.15 7/28/23SM21-23 6200B11,3,5-Trimethylbenzene
ND 20 7/28/23 22:00 EEHg/L1.7 7/28/23SM21-23 6200B1Vinyl Acetate
ND 0.50 7/28/23 22:00 EEHg/L0.24 7/28/23SM21-23 6200B1Vinyl Chloride
ND 1.0 7/28/23 22:00 EEHg/L0.49 7/28/23SM21-23 6200B1m+p Xylene
ND 0.50 7/28/23 22:00 EEHg/L0.24 7/28/23SM21-23 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 89.4 7/28/23 22:0070-130
Toluene-d8 99.5 7/28/23 22:0070-130
4-Bromofluorobenzene 95.1 7/28/23 22:0070-130
Page 14 of 26
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]
B347337 07/28/230.025 5.0023G3493-01 [MW-1]
B347337 07/28/232.5 5.0023G3493-02 [MW-02]
B347337 07/28/230.5 5.0023G3493-03 [MW-03]
B347337 07/28/235 5.0023G3493-04 [FB]
[TOC_1]Sample Preparation Information[TOC]
Page 15 of 26
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 B347337 - SW-846 5030B
[TOC_3]B347337[TOC]
Blank (B347337-BLK1) Prepared & Analyzed: 07/28/23
Acetone g/L50 L-04ND
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/L0.50ND
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/L0.50ND
Methylene Chloride g/L5.0ND
4-Methyl-2-pentanone (MIBK)g/L5.0ND
Naphthalene g/L0.50ND
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/L1.0ND
1,2,4-Trichlorobenzene g/L0.50ND
[TOC_1]QC Data[TOC]
Page 16 of 26
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 B347337 - SW-846 5030B
Blank (B347337-BLK1) Prepared & Analyzed: 07/28/23
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/L0.50ND
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 87.621.9
g/L 25.0 70-130Surrogate: Toluene-d8 10025.0
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 94.223.6
LCS (B347337-BS1) Prepared & Analyzed: 07/28/23
Acetone g/L50 100 L-0470-13067.8 *67.8
Benzene g/L0.50 10.0 70-13011111.1
Bromobenzene g/L0.50 10.0 70-13010710.7
Bromochloromethane g/L0.50 10.0 70-13011811.8
Bromodichloromethane g/L0.50 10.0 70-13010810.8
Bromoform g/L0.50 10.0 70-13096.89.68
Bromomethane g/L2.0 10.0 60-14093.49.34
2-Butanone (MEK)g/L5.0 100 70-130104104
n-Butylbenzene g/L0.50 10.0 70-13090.89.08
sec-Butylbenzene g/L0.50 10.0 70-13093.99.39
tert-Butylbenzene g/L0.50 10.0 70-13092.99.29
Carbon Tetrachloride g/L0.50 10.0 70-13010510.5
Chlorobenzene g/L0.50 10.0 70-13010710.7
Ethanol g/L50 100 70-13089.489.4
Chlorodibromomethane g/L0.50 10.0 70-13011011.0
Chloroethane g/L0.50 10.0 60-14085.38.53
Chloroform g/L0.50 10.0 70-13011211.2
Chloromethane g/L0.60 10.0 60-14081.18.11
2-Chlorotoluene g/L0.50 10.0 70-13095.79.57
4-Chlorotoluene g/L0.50 10.0 70-13099.79.97
1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13010910.9
1,2-Dichlorobenzene g/L0.50 10.0 70-13099.09.90
1,3-Dichlorobenzene g/L0.50 10.0 70-13099.89.98
1,4-Dichlorobenzene g/L0.50 10.0 70-13096.79.67
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14070.57.05
1,1-Dichloroethane g/L0.50 10.0 70-13011811.8
1,2-Dichloroethane g/L0.50 10.0 70-13098.59.85
1,1-Dichloroethylene g/L0.50 10.0 70-13072.37.23
cis-1,2-Dichloroethylene g/L0.50 10.0 70-13011311.3
trans-1,2-Dichloroethylene g/L0.50 10.0 70-13011211.2
1,2-Dichloropropane g/L0.50 10.0 70-13011311.3
1,3-Dichloropropane g/L0.50 10.0 70-13011211.2
2,2-Dichloropropane g/L0.50 10.0 70-13091.59.15
1,1-Dichloropropene g/L0.50 10.0 70-13010610.6
cis-1,3-Dichloropropene g/L0.50 10.0 70-13011111.1
trans-1,3-Dichloropropene g/L0.50 10.0 70-13010910.9
Page 17 of 26
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 B347337 - SW-846 5030B
LCS (B347337-BS1) Prepared & Analyzed: 07/28/23
Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13010810.8
Ethylbenzene g/L0.50 10.0 70-13010410.4
2-Hexanone (MBK)g/L5.0 100 70-130105105
Isopropylbenzene (Cumene)g/L0.50 10.0 70-13010110.1
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13089.68.96
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13096.49.64
Methylene Chloride g/L5.0 10.0 70-13078.67.86
4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-130106106
Naphthalene g/L0.50 10.0 70-13074.37.43
n-Propylbenzene g/L0.50 10.0 70-13099.59.95
Styrene g/L0.50 10.0 70-13010410.4
1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13010510.5
Tetrachloroethylene g/L0.50 10.0 70-13011011.0
Toluene g/L0.50 10.0 70-13011211.2
1,2,3-Trichlorobenzene g/L1.0 10.0 70-13090.99.09
1,2,4-Trichlorobenzene g/L0.50 10.0 70-13091.89.18
1,1,1-Trichloroethane g/L0.50 10.0 70-13010610.6
1,1,2-Trichloroethane g/L0.50 10.0 70-13011411.4
Trichloroethylene g/L0.50 10.0 70-13011011.0
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 L-0770-13069.9 *6.99
1,2,3-Trichloropropane g/L0.50 10.0 70-13010610.6
1,2,4-Trimethylbenzene g/L0.50 10.0 70-13091.59.15
1,3,5-Trimethylbenzene g/L0.50 10.0 70-13097.19.71
Vinyl Acetate g/L20 100 70-130121121
Vinyl Chloride g/L0.50 10.0 60-14010210.2
m+p Xylene g/L1.0 20.0 70-13010320.5
o-Xylene g/L0.50 10.0 70-13010410.4
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 87.321.8
g/L 25.0 70-130Surrogate: Toluene-d8 98.624.6
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10225.4
LCS Dup (B347337-BSD1) Prepared & Analyzed: 07/28/23
Acetone g/L50 100 25 L-0470-13067.0 1.29*67.0
Benzene g/L0.50 10.0 2570-130109 2.3610.9
Bromobenzene g/L0.50 10.0 2570-130108 1.1110.8
Bromochloromethane g/L0.50 10.0 2570-130117 0.59511.7
Bromodichloromethane g/L0.50 10.0 2570-130105 2.6310.5
Bromoform g/L0.50 10.0 2570-13094.1 2.839.41
Bromomethane g/L2.0 10.0 2560-14093.9 0.5349.39
2-Butanone (MEK)g/L5.0 100 2570-130101 3.07101
n-Butylbenzene g/L0.50 10.0 2570-13095.0 4.529.50
sec-Butylbenzene g/L0.50 10.0 2570-13098.6 4.889.86
tert-Butylbenzene g/L0.50 10.0 2570-13098.0 5.349.80
Carbon Tetrachloride g/L0.50 10.0 2570-130104 1.0510.4
Chlorobenzene g/L0.50 10.0 2570-130106 0.37610.6
Ethanol g/L50 100 2570-13093.9 4.9193.9
Chlorodibromomethane g/L0.50 10.0 2570-130106 4.0810.6
Chloroethane g/L0.50 10.0 2560-14081.0 5.178.10
Chloroform g/L0.50 10.0 2570-130112 0.44611.2
Chloromethane g/L0.60 10.0 2560-14075.6 7.027.56
2-Chlorotoluene g/L0.50 10.0 2570-13097.2 1.569.72
4-Chlorotoluene g/L0.50 10.0 2570-130104 4.7010.4
Page 18 of 26
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 B347337 - SW-846 5030B
LCS Dup (B347337-BSD1) Prepared & Analyzed: 07/28/23
1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-130107 1.4810.7
1,2-Dichlorobenzene g/L0.50 10.0 2570-130102 3.1810.2
1,3-Dichlorobenzene g/L0.50 10.0 2570-130101 0.89810.1
1,4-Dichlorobenzene g/L0.50 10.0 2570-13099.6 2.959.96
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-14073.0 3.487.30
1,1-Dichloroethane g/L0.50 10.0 2570-130116 1.1111.6
1,2-Dichloroethane g/L0.50 10.0 2570-13096.1 2.479.61
1,1-Dichloroethylene g/L0.50 10.0 2570-13073.6 1.787.36
cis-1,2-Dichloroethylene g/L0.50 10.0 2570-130114 1.0511.4
trans-1,2-Dichloroethylene g/L0.50 10.0 2570-130111 1.0711.1
1,2-Dichloropropane g/L0.50 10.0 2570-130112 0.62011.2
1,3-Dichloropropane g/L0.50 10.0 2570-130108 3.1010.8
2,2-Dichloropropane g/L0.50 10.0 2570-13088.9 2.888.89
1,1-Dichloropropene g/L0.50 10.0 2570-130108 1.7710.8
cis-1,3-Dichloropropene g/L0.50 10.0 2570-130111 0.45111.1
trans-1,3-Dichloropropene g/L0.50 10.0 2570-130106 3.4410.6
Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-130108 0.092510.8
Ethylbenzene g/L0.50 10.0 2570-130106 1.9110.6
2-Hexanone (MBK)g/L5.0 100 2570-13098.9 5.7698.9
Isopropylbenzene (Cumene)g/L0.50 10.0 2570-130103 1.3710.3
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-13094.6 5.439.46
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-13094.8 1.679.48
Methylene Chloride g/L5.0 10.0 2570-13077.9 0.8957.79
4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-13098.8 6.5998.8
Naphthalene g/L0.50 10.0 2570-13073.3 1.367.33
n-Propylbenzene g/L0.50 10.0 2570-130102 2.5810.2
Styrene g/L0.50 10.0 2570-130105 0.095710.5
1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-130103 1.4410.3
Tetrachloroethylene g/L0.50 10.0 2570-130108 1.2810.8
Toluene g/L0.50 10.0 2570-130109 2.1810.9
1,2,3-Trichlorobenzene g/L1.0 10.0 2570-13090.4 0.5529.04
1,2,4-Trichlorobenzene g/L0.50 10.0 2570-13091.8 0.009.18
1,1,1-Trichloroethane g/L0.50 10.0 2570-130107 0.093910.7
1,1,2-Trichloroethane g/L0.50 10.0 2570-130112 1.8611.2
Trichloroethylene g/L0.50 10.0 2570-130107 2.1210.7
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-13071.1 1.707.11
1,2,3-Trichloropropane g/L0.50 10.0 2570-130102 3.1710.2
1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13093.5 2.169.35
1,3,5-Trimethylbenzene g/L0.50 10.0 2570-130102 4.5310.2
Vinyl Acetate g/L20 100 2570-130119 1.43119
Vinyl Chloride g/L0.50 10.0 2560-140102 0.19610.2
m+p Xylene g/L1.0 20.0 2570-130104 1.4520.8
o-Xylene g/L0.50 10.0 2570-130107 2.0810.7
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 89.222.3
g/L 25.0 70-130Surrogate: Toluene-d8 97.624.4
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10325.9
Page 19 of 26
Table of Contents
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
Elevated reporting limit due to high concentration of target compounds.RL-11
[TOC_1]Flag/Qualifier Summary[TOC]
Page 20 of 26
Table of Contents
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]
Page 21 of 26
Table of Contents
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
Page 22 of 26
Table of Contents
Page 23 of 26
Table of Contents
Page 24 of 26
Table of Contents
Page 25 of 26
Table of Contents
Page 26 of 26
Table of Contents