WS-2467_3510_CA_MRP_20200918

Monitoring Report
Needham Service Station, #3510
719 Main Street
Pilot Mountain, North Carolina 27041
S&ME Project No. 4305-17-229C
PREPARED FOR:
NCDEQ, DWM, UST Section
1646 Mail Service Center
Raleigh, NC 27699-1646
PREPARED BY:
S&ME, Inc.
8646 West Market Street
Greensboro, NC 27409
September 18, 2020

S&ME, Inc. | 3201 Spring Forest Road | Raleigh, NC 27616 | p 919.872.2660 | www.smeinc.com

September 18, 2020
NCDEQ, DWM, UST Section
1646 Mail Service Center
Raleigh, NC 27699-1646
Attention: Submitted via email: [e-mail]
Reference:
Mr. Herbert E. Berger, Jr., LG
Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
Dear Mr. Berger:
S&ME, Inc., (S&ME) presents this report in accordance with the North Carolina Department of Environmental
Quality/S&ME Contract No. N17002 and S&ME Proposal No. 43-1700706C, dated July 22, 2020, and as authorized
by Task Authorization No. 04, dated July 23, 2020.
If you have any questions or comments regarding this report, then please contact us at your convenience.
Sincerely,

S&ME, Inc.

Lyndal Butler Wayne H. Watterson, P.E.
Environmental Scientist Senior Engineer

Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 ii
Table of Contents
1.0 Site Information ................................................................................................................ 1
1.1 Site Identification ............................................................................................................................ 1
1.2 Information about Contacts Associated with the Leaking UST System ................................. 1
1.3 Information about Release ............................................................................................................ 1
1.4 Information about the Monitoring Report .................................................................................. 1
1.5 Certification ..................................................................................................................................... 1
2.0 Executive Summary .......................................................................................................... 2
3.0 Scope of Services ............................................................................................................... 3
3.1 Contract Information ..................................................................................................................... 3
3.2 Approved Scope of Services ......................................................................................................... 3
4.0 Site History and Characterization ................................................................................. 3
4.1 UST Owner and Operator Information ....................................................................................... 3
4.2 UST Information ............................................................................................................................. 4
4.3 Description of the UST Release .................................................................................................... 4
4.4 Site Characteristics ......................................................................................................................... 4
4.5 Owners and Occupants of Adjoining/Nearby Properties and Land Use ............................... 4
4.6 Receptors/Potential Receptor Information .................................................................................. 4
5.0 Current Site Assessment Information .......................................................................... 5
5.1 Current Liquid Levels .................................................................................................................... 5
5.2 Groundwater Monitoring Event .................................................................................................. 5
5.3 Summary of Groundwater Information ...................................................................................... 5
5.4 Regional and Site Geology and Hydrogeology .......................................................................... 5
5.4.1 Soil and Bedrock ................................................................................................................................ 5
5.4.2 Hydrogeology .................................................................................................................................... 6
6.0 Evaluation of Soil, Groundwater, Surface Water, and LNAPL Assessment
Information ................................................................................................................................... 6
6.1
6.1.1
Current Extent and Severity of Contamination ......................................................................... 6
Light Non-Aqueous Phase Liquids .................................................................................................. 6
6.1.2 Groundwater ..................................................................................................................................... 7
6.1.3 Contaminant Mass Estimation ......................................................................................................... 8
6.1.4 Soil ..................................................................................................................................................... 9
6.2 Cleanup Levels Achieved ............................................................................................................ 10
7.0 Conclusion and Recommendations ............................................................................. 10

Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 iv
List of Figures
1. Site Vicinity Map
2. Site Map
3. Groundwater Elevation Map
4. Groundwater Constituent Map
5. Benzene Isoconcentration Contour Map
6. EDB Isoconcentration Contour Map
List of Tables
1. UST System Information
2. UST Owner Information
3. Well Construction and Liquid Level Data
4. Summary of Water Sampling Results
Appendices
Appendix I – Figures
Appendix II – Tables
Appendix III – Photo Log
Appendix IV – Field Notes and Field Sampling Forms
Appendix V – Laboratory Analytical Report and Chain of Custody Form
Appendix VI- Contaminant Mass Estimation as Benzene

Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 1
1.0 Site Information
1.1 Site Identification
• Date of Report: September 18, 2020
• Facility I.D. 0-00-000008029 (UST Database) UST Incident No.: 3510 UST No.: WS-2467
• Site Risk: Intermediate Site Rank: I 210 D Land Use Category: Residential
• Site Name: Needham Service Station
• Site Address: 719 East Main Street
• City/Town: Pilot Mountain Zip Code: 27041 County: Surry
• Description of Geographical Data: Former UST Basin
• Location Method: Surry County GIS System
• Latitude (decimal degrees): 36.3825°N Longitude (decimal degrees): -80.4533°W
1.2 Information about Contacts Associated with the Leaking UST System
• UST Owner: C.B. Roberson, Inc., Halifax, VA
• UST Operator: Unknown
• Property Occupant: J-N-R Autos and At The Fork Flea Market
• Consultant/Contractor: S&ME, Inc. (Lyndal Butler)
• Address: 8646 West Market Street, Greensboro NC 27409 Telephone: [phone]
• Analytical Laboratory: Con-Test Analytical Laboratory State Certification No.: 652
• Address: 39 Spruce Street, East Longmeadow, MA 01028 Telephone: [phone]
1.3 Information about Release
• Date Discovered: August 18, 1987
• Estimated Quantity of Release: Unknown
• Cause of Release: Spills/Leaks: Leak from elbow of product line.
• Source of Release (Dispenser/Piping/UST): UST System.
• Sizes and contents of UST system from which the release occurred: 1) 2,000-gallon gasoline UST, 2) 3,000-gallon
gasoline USTs.
• Criteria Used to Classify Risk: LNAPL in monitoring well MW-13; dissolved petroleum compound concentrations
greater than Gross Contamination Levels.
1.4 Information about the Monitoring Report
• Date of Groundwater Monitoring: August 20, 2020.
1.5 Certification
I, Wayne H. Watterson, a Professional Engineer for S&ME, do certify that the information contained in this report is correct and
accurate to the best of my knowledge. S&ME is licensed to practice geology/engineering in North Carolina. Geology License
Certification #C-145 and Engineering License Certification #F-0176.
________________________________________
Wayne H. Watterson, P.E.
Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 2
2.0 Executive Summary
• The maximum concentrations of dissolved groundwater contaminants detected in the monitoring wells
selected for sampling on August 20, 2020 (MW-2, MW-3, MW-6R, MW-7, MW-9, MW-12, MW-14), at
concentrations greater than the 15A NCAC 2L Groundwater Quality Standards (2L Standards) during this
sampling event are summarized in the table below. See Table 4 for complete results.
Contaminant 2L Standard (µg/L) Concentration
(µg/L) Well ID
Benzene 1 14,000 MW-6R
Toluene 600 19,000 MW-14
Ethylbenzene 600 3,400 MW-6R
Xylenes, Total 500 17,400 MW-6R
Methyl tert-butyl ether 20 2,600 MW-14
Diisopropyl ether 70 180 MW-14
n-Butylbenzene 70 110 J MW-14
n-Propylbenzene 70 430 MW-14
Isopropyl benzene 70 180 MW-14
Naphthalene 6 1,500 MW-14
2-Hexanone 280 840 J MW-14
4-Methyl-2-pentanone 100 130 MW-7
Ethylene dibromide 0.02 130 MW-14
1,2-Dichloropropane 0.6 5.2 MW-7
1,2,4-Trimethylbenzene 400 2,500 MW-6R
1,3,5-Trimethylbenzene 400 650 MW-6R
Tetrachloroethylene 0.7 2.4 MW-12

• S&ME measured light non-aqueous phase liquid (LNAPL) in monitoring well MW-13 at a thickness of 1.00
feet on August 20, 2020. LNAPL was measured at a thickness of 1.00 feet in MW-13 on April 22, 2019,
prior to the Mobile Multi-phase Extraction (MMPE) event performed on the site during April 2019. LNAPL
was measured at a thickness of 0.02 feet on July 24, 2020, approximately three months after the MMPE
event. LNAPL has previously been reported monitoring wells MW-2 (submerged screen) and MW-6R,
each located outside the former UST basin.

• The dissolved phase petroleum constituent concentrations in monitoring wells MW-2, MW-5, MW-9 and
MW-12, are relatively stable since the most recent sampling event in each well, and levels reported in
MW-2 and MW-9 are lower relative to maximum historic concentrations. Monitoring wells MW-6R and
MW-7 showed an increase in dissolved phase petroleum constituent concentrations relative to July 2019;
however, the levels are similar to historical values. Dissolved constituent concentrations are increasing,
relative to previous monitoring events, in monitoring well MW-14.

Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 3
• Based on the Monitoring Report prepared by Terrain (December 31, 2008), the following potential
receptors were noted within 1,500 feet of the site:

Distance from
source (ft)
Municipal
Water
Available
Active Drinking
Water Well
Inactive
Drinking
Water Well
Irrigation
Well
Surface Water
Body
0 - 500 Yes 0 WSW-4 0 0
500 – 1,000 Yes 0 WSW-2 0 0
1,000 – 1,500 Yes WSW-1, WSW-3 0 0 0

• To achieve incident closure, two options are presented:
1. Remove LNAPL.
2. Reduce the concentrations of volatile organic compounds (VOCs) to levels less than Gross Contamination
Levels (GCLs).
3.0 Scope of Services
3.1 Contract Information
The scope of services for this report was performed in general accordance with S&ME’s proposal number 43-
1400706C dated July 22, 2020. The scope of services was authorized by the North Carolina Department of
Environmental Quality (NCDEQ’s) Task Authorization 04, dated July 23, 2020, and within contract number N17002.
3.2 Approved Scope of Services
S&ME’s approved Scope of Services for this Task Authorization included the following. Gauge LNAPL in
monitoring well MW-13. Gauge and collect groundwater samples from eight monitoring wells (MW-13, if LNAPL
not detected, MW-2, MW-3, MW-6R, MW-7, MW-9, MW-12 and MW-14) for analysis by EPA Method 6200B and
by Method 504.1. and prepare one field blank sample, for analysis by EPA Method 6200B. Measure depth to
water in monitoring wells MW-1R, MW-5, MW-8, MW-10 and MW-12. Prepare this report. The scope of services
was completed as proposed, with the following exceptions.

• Depth to water was not gauged in monitoring wells MW-5 and MW-8. Monitoring well MW-5 was
obstructed and monitoring well MW-8 was damaged.
4.0 Site History and Characterization
4.1 UST Owner and Operator Information
The UST owner/operator information is provided in Table 2, Appendix II.
Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 4
4.2 UST Information
Three 4,000-gallon gasoline USTs formerly operated at the site (Figure 1, Appendix I). UST information is
provided in Table 1 and Table 2, Appendix II, and the locations of the former USTs are shown on Figure 2,
Appendix I.
4.3 Description of the UST Release
 Date reported: August 18, 1987
 Cause and Source: leaking elbow joint in product line.
 Aggressive Fluid/Vapor Recovery events performed using monitoring wells MW-2 and MW-6R during
October 2010, May 2011 and January 2012, recovered vapor as gasoline equivalent to 75 gallons, 188
gallons and 3 gallons, respectively. A MMPE event performed during August 2012 using monitoring
wells MW-2 and MW-6R recovered 87 gallons of gasoline as vapor.
 Monitoring wells MW-12, MW-13 and MW-14 were installed to improve source area characterization
during March 2015. LNAPL was measured at a thickness of 0.64 feet in monitoring well MW-13
during March 2015. A hybrid air sparge/MMPE event performed during April 2019 using monitoring
wells MW-2 (air sparge), and MW-6R, MW-13 and MW-14 (MMPE), recovered approximately 70
gallons of gasoline as vapor and 4,560 gallons of product/water mix, including approximately 92
gallons of gasoline as liquid.
4.4 Site Characteristics
 The site consists of a one-story, masonry-frame building in commercial use and associated asphalt
pavement. The building is currently occupied by a commercial office and a retail store. A
photographic log of the site is provided as Appendix III.
 Based upon the groundwater elevation map (Figure 3, Appendix I), groundwater near and
downgradient of the source area generally flows to the northeast.
4.5 Owners and Occupants of Adjoining/Nearby Properties and Land Use
The site and adjoining and adjacent properties are in commercial use. Apparent residential properties are located
on Main Street to the southwest. A site map is provided as Figure 2, Appendix I.
4.6 Receptors/Potential Receptor Information
Conducting a receptor survey was outside of the scope for this task authorization. However, the following
summary is based on previous information.

 Two inactive potable water supply wells are located within 1,000 feet of the source area.
 Two active potable supply wells are located between 1,000 and 1,500 feet of the source area.
 No surface water bodies are located within 1,500 feet of the source area.
 A municipal water source is currently available to the site and surrounding properties.

Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 5
5.0 Current Site Assessment Information
5.1 Current Liquid Levels
On August 20, 2020, S&ME was onsite to gauge liquid levels in monitoring wells installed in response to the
release. The depth to water ranged from 18.40 feet below top of casing (ft-BTOC) in MW-3 to 39.44 ft-BTOC in
MW-7. Relative groundwater elevations ranged from 48.10 feet in MW-9 to 81.92 feet in MW-3. LNAPL was
measured at a thickness of 1.00 feet in MW-13. A summary of current and historical groundwater levels is
depicted in Table 3, Appendix II.
5.2 Groundwater Monitoring Event
Monitoring wells were selected for sampling to observe the extent and stability of the dissolved constituent plume
downgradient and cross gradient of the LNAPL/GCL plumes. After measuring the depth-to-water, S&ME
personnel purged monitoring wells MW-2, MW-3, MW-6R, MW-7, MW-9, MW-12 and MW-14, with disposable
polyethylene bailers by evacuating approximately three well volumes of water from the casing. The field
parameters pH, specific conductivity and temperature, were measured for each approximate casing volume, and
recorded on groundwater sampling forms, which are provided in Appendix IV.
During the sampling event a field blank sample (FB) was also prepared using laboratory supplied deionized water.
Groundwater samples were collected directly into laboratory supplied containers by hand using disposable Nitrile
gloves, placed in a cooler on ice, and shipped under standard chain-of-custody record to Con-Test Analytical
Laboratory (Con-Test) for analysis. Monitoring well samples and field blank sample FB were analyzed for volatile
organic compounds (VOCs) by EPA Method 6200B and EDB by Method 504.1.
5.3 Summary of Groundwater Information
The laboratory analytical results of the groundwater samples collected from groundwater monitoring wells
indicate several petroleum related constituents in monitoring wells MW-2, MW-6R, MW-7, MW-9, MW-12 and
MW-14, at concentrations greater than the corresponding 2L Standards. One VOC was reported in field blank
sample FB at an estimated concentration less than the 2L Standard. Benzene was reported in monitoring wells 6R
and MW-14 at concentrations greater than the GCL. EDB was reported in monitoring well MW-14 at a
concentration greater than the GCL. A summary of the groundwater analytical results is presented in Table 4,
Appendix II, and are shown in Figure 4, Appendix I. A copy of the analytical report is provided in Appendix V.

5.4 Regional and Site Geology and Hydrogeology
5.4.1 Soil and Bedrock
Based on the Soil Survey of Surry County, North Carolina http://www.nrcs.usda.gov/Internet/ FSE_Manuscripts
/North_Carolina/NC171/0/Surry.pdf), soils on the property are classified as Urban land (Ur). Urban land is
described as altered by cutting, filling, grading and shaping so that the original topography and drainage have
been changed. Subsurface soil characterized during installation of monitoring wells MW-2 through MW-9 by
others consisted of silt, sandy silt and silty fine sand overlying weathered rock. Subsurface soil characterized
during installation of monitoring well MW-13 consisted of silty clay and clayey silt, underlain by silt.
Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 6
According to the Geologic Map of North Carolina, dated 1985, the site is underlain by Proterozoic to Cambrian
metamorphosed granitic rocks. Bedrock was not encountered within 30.4 feet of the ground surface during
installation of monitoring well MW-13. During prior assessment activities performed by others, bedrock was
encountered by soil borings performed to install monitoring wells MW-2 and MW-3 at depths of 55 feet and 65
feet below ground surface, respectively. Monitoring well MW-2 was installed in unconsolidated material to the
top of bedrock, but MW-3 was installed approximately 10 feet into bedrock (Cross-section A-A’, Groundwater
Investigation, Engineering Tectonics, P.A. (July 1988).
5.4.2 Hydrogeology
S&ME calculated the groundwater elevations for the monitoring wells gauged using the depth-to-water
measurements and the top of casing elevations. The groundwater elevations were used to prepare a groundwater
contour map (Figure 3, Appendix I), which generally indicates diverging groundwater flow conditions in the
source area to the northeast. The hydraulic conductivity for the site provided by Engineering Tectonics, P.A. (July
1988) was 1.32 X 10-4 cm/sec. A fate and transport model has not been created; therefore, the rate of contaminant
migration has not been calculated.
The depth to water measured in monitor wells MW-2 and MW-3 were approximately 8 feet and 18 feet above the
screened interval, respectively. Calculated groundwater elevations for monitor wells MW-2 and MW-3 were not
included in contour determinations shown on Figure 3. The total depth of MW-3 is similar to other shallow
monitor wells installed on the site; however, based on previous assessment reports prepared by others, MW-3 was
installed approximately 10 feet into bedrock, and all other monitor well borings were terminated before bedrock
was encountered. The groundwater elevation in MW-3 is approximately 15 feet higher in elevation relative to the
elevation in MW-12, which is the shallow well installed closest to MW-3. This elevation difference likely represents
an upward vertical migration of groundwater on the site. A vertical hydraulic gradient was not calculated due to
the distance (>50 feet) from MW-3 to MW-12.
Based on the groundwater elevations recorded on August 20, 2020, S&ME calculated the average hydraulic
gradient in the source area as 0.16 feet per foot. The hydraulic gradient downgradient of the source area is
greater, which is generally consistent with the steep downward surface topography northeast of 52 Bypass.
Groundwater occurrence ranged from approximately 0.5 feet to 1.5 feet higher in the source area during August
2020, relative to July 2019; however, groundwater occurrence was approximately 6 feet lower in elevation in
downgradient monitoring well MW-9.
6.0 Evaluation of Soil, Groundwater, Surface Water, and LNAPL
Assessment Information
6.1 Current Extent and Severity of Contamination
6.1.1 Light Non-Aqueous Phase Liquids
LNAPL was detected in monitoring well MW-2 during January 2010, when fluid levels were shallower than the top
of the screened interval; therefore, LNAPL entered the well, prior to January 2010, when fluid levels were deeper
Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 7
than the top of the screened interval. LNAPL was also reported in monitoring well MW-6R, located downgradient
of MW-2, during 2008 and 2010. LNAPL has been detected in monitoring well MW-13 since installation in 2015.
LNAPL was measured at a thickness of 1.00 foot in monitoring well MW-13 on April 22, 2019, prior to a hybrid air
sparge/MMPE event. LNAPL was measured at a thickness of 1.00 foot in MW-13 on August 20, 2020.
6.1.2 Groundwater
The laboratory analytical results for groundwater samples collected from monitoring wells MW-2, MW-3, MW-6R,
MW-7, MW-9, MW-12 and MW-14, indicate the following constituents reported at concentrations or estimated
concentrations greater than the corresponding 2L Standards.
• Benzene in MW-2, MW-6R, MW-7, MW-9, MW-14
• Toluene in MW-6R, MW-14
• Ethylbenzene in MW-MW-6R, MW-14
• Xylenes, total, in MW-6R, MW-14
• Methyl tert-butyl ether MW-6R, MW-7, MW-9, MW-14
• Diisopropyl ether in MW-14
• n-Butylbenzene in MW-14
• Isopropylbenzene in MW-6R, MW-7, MW-14
• n-Propylbenzene in MW-6R, MW-7, MW-14
• Naphthalene in MW-6R, MW-7, MW-14
• 2-Hexanone in MW-14
• Methyl isobutyl ketone in MW-7
• Tetrachloroethene in MW-12
• EDB in MW-2, MW-6R, MW-7, MW-14
• 1,2-Dichloropropane in MW-7
• 1,2,4-Trimethylbenzene in MW-6R, MW-14
• 1,3,5-Trimethylbenzene in MW-6R, MW-14
Dissolved impacts exceeding the GCL for benzene were reported in source area monitoring well MW-14, and in
MW-6R (previous LNAPL detections). Relative to the July 2019 values, benzene concentrations increased in
monitoring wells MW-6R and MW-14. Dissolved impacts exceeding the GCL for EDB reported in source area
monitoring well MW-14 also increased.

With the exception of Tetrachloroethene (not associated with petroleum products) in cross gradient monitoring
well MW-1R, and with EDB in upgradient monitoring well MW-12, the dissolved constituent plume is delineated
up gradient of and cross gradient of the source area by monitoring wells MW-1R, MW-12 and MW-10. The
dissolved plume is not delineated downgradient of the source area; however, VOC concentrations reported for the
most downgradient monitoring well sampled, MW-9, were less than historical values. Multiple VOCs have been
reported historically at concentrations greater than the 2L Standards in monitoring well MW-11 located
approximately 300 feet from the source area, but MW-11 could not be located for sampling during a previous
monitoring event and therefore was not selected to be sampled during the August 2020 sampling event.

Dissolved constituent concentrations have increased in source area monitoring well MW-14, and in downgradient
well MW-6R. VOC concentrations showed an increased in monitoring wells MW-2, MW-6R and MW-7,
Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 8
representing the core of the dissolved constituent plume, relative to the July 2019 sampling event but have
diminished compared to historical values. The increasing concentrations relative to 2019 may be related to higher
groundwater elevations since 2019 (groundwater rising into the smear zone and into impacted soil).

The continued trend of decreasing VOC values in monitoring well MW-9, located downgradient of the core of the
dissolved constituent plume, may represent plume attenuation distal from LNAPL/GCL plumes. VOC
concentrations have significantly diminished in near source monitoring well MW-2; however, this observation may
not be representative of groundwater quality conditions in the core of the dissolved constituent plume for the
following reasons.

• MW-2 was used as an air sparge point during the April 2019 hybrid air sparge/MMPE event; therefore;
constituents in groundwater proximal to MW-2 may have transferred from the dissolved phase to the
vapor phase during sparging, thus reducing the dissolved concentrations. Groundwater with greater
dissolved concentrations had not migrated to MW-2 at the time of sampling.
• The depth to water when monitor well MW-2 was sampled was at an elevation approximately 8 feet
above the top of the screened interval of the well. MW-2 was selected as an air sparge point during April
2019 because the depth to water was 7 feet above the top of the screened interval at that time. The
density of VOCs is typically less than 1; therefore, dissolved VOCs remain at a greater concentration in the
uppermost section of the saturated zone, relative to some distance below the water table. The
groundwater collected from monitor well MW-2 represented constituent concentrations 8 feet to 18 feet
below the water table on August 20, 2020. These concentrations are expected to be less than
concentrations of groundwater representing the uppermost portion of the saturated zone at the location
of MW-2. Other monitor wells sampled represent the uppermost portion of the saturated zones at the
locations of the wells; therefore, constituent concentrations in MW-2 are not consistent with
concentrations represented by monitor wells installed with the screened interval intersecting the water
table.

The depth to water in monitor wells MW-1 and MW-7 on August 20, 2020, was approximately 2 feet and 4 feet
higher in elevation, respectively, than the reported top of the well screened interval of MW-1 and MW-7, but
these differences are less than MW-2, and the samples are considered to represent water table conditions.

The depth to water in monitor well MW-3 was approximately 18 feet above the top of the screened interval of
MW-3. The analytical results for monitor well MW-3 represent groundwater quality conditions from 36 feet to 54
feet below ground surface, and at a location upgradient of the dissolved constituent plume.

Estimated Isoconcentration contours for benzene and EDB are presented in Figure 5 and Figure 6, respectively.
The significantly lower values reported for monitoring well MW-2, relative to MW-6R and MW-14, were likely due
to MW-2 serving as the air sparge point during the April 2019 hybrid sparge/MMPE event, and to the submerged
screened interval of MW-2; therefore, MW-2 was not included in contouring.
6.1.3 Contaminant Mass Estimation
S&ME estimated the mass of contamination as benzene dissolved in groundwater, and as LNAPL, using the
monitoring well sampling data in March 2015, November 2017, July 2019 and August 2020. The estimate does
not include contaminant mass in soil. The contaminant mass as benzene in March 2015 and November 2017,
Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 9
prior to the April 2019 hybrid MMPE event, was approximately 3,762 pounds and 3,736 pounds, respectively. The
contaminant mass as benzene in July 2019, subsequent to the April 2019 hybrid MMPE event, was approximately
777 pounds. The August 2020 contaminant mass as benzene increased to 3,311 pounds. The contaminant mass
as dissolved constituents and as LNAPL likely increased due to impacts from contaminated soil remaining in the
unsaturated zone, especially with the groundwater rising and falling through the “smear zone” with changes in
water table elevations.
The change in the total contamination mass at the site, shown in Appendix VI, was determined by the following
methods and using the following assumptions.
• Assumptions: Soil porosity of 0.30; constant contamination concentrations across the water column, and
homogenous subsurface conditions.
• Using isoconcentration lines based upon the laboratory analytical results, the surface area between the
isoconcentration lines is estimated by CAD Methods.
• The surface area for each isoconcentration interval is then multiplied by an estimated depth of
contamination of 18 feet (based on groundwater occurrence and estimated depths to bedrock along the
core of the dissolved constituent plume from monitoring well MW-12 to MW-7), and correlated to the
porosity. This results in the total volume of groundwater between each isoconcentration line.
• The volume within each isoconcentration interval is then multiplied by the average compound
concentration within that isoconcentration interval.
• To determine the contamination mass within the area where free product is present, the thickness of free
product is averaged and then that average is multiplied by the solubility of the compound being used for
the calculations, in this case benzene with a solubility of 1,780,000 g/L.
• For the portion beneath the area containing free product, the average free product thickness is subtracted
from the total depth of contamination and then multiplied by the average of the GCL and the solubility
limit of the compound being used for the calculations, in this case benzene with a GCL of 5,000 g/L and
a solubility of 1,780,000 g/L.
• The contamination masses within each isoconcentration interval are added together to obtain the total
mass of contamination at the site.
• The total contamination mass based on the laboratory analytical results from the current sampling event
are compared to the total contamination mass based on the laboratory analytical results from the
previous sampling event to determine the change in contamination mass from the previous sampling
event to the current sampling event.
6.1.4 Soil
No impacted soil has been removed from the site (Tank Closure Assessment; Legacy Environmental Services,
November 18, 1991). Risk-based soil analyses performed in March 2015 resulted in multiple VOC and carbon-
chain fraction concentrations greater than the soil-to-groundwater Maximum Soil Contaminant Concentrations
(MSCCS) in soil samples collected during installation of monitoring wells MW-12 and MW-14. Also, C9-C18
Aliphatics and C9-C22 Aromatics were reported in the soil sample collected at the location of MW-12 (depth 10
feet below ground surface) at concentrations greater than the corresponding residential MSCCs, but less than
industrial/commercial MSCCs.

Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 10
6.2 Cleanup Levels Achieved
 Soil (Industrial/Commercial MSCCs) Yes
 Groundwater (Gross Contamination Level) No
 LNAPL - (0.01 feet) No
7.0 Conclusion and Recommendations
Based on the current and historical assessment information for the site, the following conclusions are presented.
The UST Incident meets the following conditions for an Intermediate Risk classification:
A. Contaminant levels in the groundwater at the site exceed the Gross Contamination Levels.
B. LNAPL was measured in monitoring well MW-13.
Based on the above, the following recommendations are presented:

1. Continue to monitor for stability of the dissolved constituent plume.
2. Remove LNAPL at the site.
3. Reduce VOC concentrations to levels less than the Gross Contamination Levels.

The diminished VOC values observed in monitoring well MW-6R, and the reduced LNAPL occurrence in MW-13,
from 1.00 foot (April 2019) to 0.02 feet (July 2019) three months after the hybrid air-sparge/MMPE event
performed during April 2019, indicates removal of mass from the source area. Approximately 13 months after the
previous monitoring event, the estimated contaminated mass as benzene dissolved in groundwater, and as
LNAPL, returned to levels greater than July 2019, but less than March 2015 and November 2017. The estimate for
mass as benzene includes LNAPL and benzene dissolved in groundwater; however, the estimate does not include
mass in soil (unsaturated zone). The increased mass estimated for dissolved constituents and as LNAPL in August
2020, relative to July 2019, may be related to higher groundwater elevations, relative to the previous year, so that
more of the uppermost portion of the saturated zone is in contact with contaminated soil; therefore, contaminant
mass in the unsaturated zone dissolved when in contact with groundwater and accumulated as measurable
LNAPL.

Appendices

Appendix I – Figures

SCALE:
DATE:
PROJECT NUMBER
FIGURE NO.Drawing Path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\B\Needham Figures.dwgN
0 1000 2000
(IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALE
NEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA
1
4305-17-229B
SEPT. 2020
AS SHOWNSITE VICINITY MAP
(Site ID: 3510)
SITE
SOURCE: PILOT MOUNTAIN, NC QUADRANGLE, 7.5-MINUTE SERIES US TOPO (2013).
N016080 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALESOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.LEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANKUSTFORMERUSTBASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSER ISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-14MW-12FIGURE NO.SCALE:DATE:PROJECT NUMBER2PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA719 EAST MAIN STREETNEEDHAM SERVICE STATIONAS SHOWNSEPT. 20204305-17-229BSITE MAP(Site ID: 3510)
50.060.052.054.056.058.062.064.066.0FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\B\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA3SEPT. 2020GROUNDWATER CONTOUR MAP
(Site ID: 3510)AS SHOWN4305-17-229BLEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANK- GROUNDWATER CONTOUR- MEASURED GROUNDWATER ELEVATION- NOT MEASURED- GROUNDWATER FLOW DIRECTIONUST(63.31)SOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-12(NM)(64.18)(64.05)(64.71)(66.50)(48.10)(NM)(62.76)(NM)(64.05)(NM)(67.19)(NM)MW-14NOTESMONITORING WELLS GROUNDWATER MEASURED ON JULY 24, 2019.LIGHT, NON-AQUAEOUS PHASE LIQUID THICKNESS IN MW-13 = 0.02 FEET.MW-13 ELEVATION CONSIDERED ANOMALOUS AND NOT INCLUDED IN CONTOURINGMW-2 AND MW-3 ELEVATIONS NOT INCLUDED IN CONTOURING (SCREENED INTERVALS SUBMERGED FROM 7 TO 18 FEET)(81.92)
FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\B\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA4SEPT. 2020GROUNDWATER CONSTITUENT MAP
(Site ID: 3510)AS SHOWN4305-17-229BLEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANKUSTSOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-13MW-12(NS)MW-14MW-9ug/LBenzene5.3Mertyl tert-butyl ether (MTBE)211,2-Dichloroethane1.9MW-7ug/LBenzene2,300Mertyl tert-butyl ether (MTBE)61n-Propylbenzene97Isopropyl benzene100Naphthalene440Methyl isobutyl ketone1301,2-Dibromoethane0.141,2-Dichloropropane5.2MW-14ug/LBenzene12,000Toluene19,000Ethylbenzene2,600Total Xylenes13,200Mertyl tert-butyl ether (MTBE)2,600Diisopropyl ether180n-Butylbenzene110 Jn-Propylbenzene430Isopropyl benzene180Naphthalene1,500Methyl ethyl ketone840 J1,2 Dibromoethane (EDB)1301,2,4-Trimethylbenzene2,3001,3,5-Trimethylbenzene550MW-12ug/LTetrachloroethene2.41,2-Dibromoethane0.077MW-13Light Non-Aquaeous Phase LiquidMW-6Rug/LBenzene14,000Toluene18,000Ethylbenzene3,400Total Xylenes17,400Mertyl tert-butyl ether (MTBE)260n-Propylbenzene4100Isopropyl benzene140Naphthalene7001,2 Dibromoethane (EDB)281,2,4-Trimethylbenzene2,5001,3,5-Trimethylbenzene650MW-11Not SampledMW-8Not SampledMW-5Not SampledMW-10Not SampledMW-3Not SampledMW-1RNot SampledMW-2ug/LBenzene771,2-Dibromoethane0.027NOTE: MONITORING WELLS SAMPLED ON AUGUST 20, 2020
FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\B\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA5SEPT. 2020BENZENE ISOCONCENTRATION CONTOUR MAP
(Site ID: 3510)AS SHOWN4305-17-229BLEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANK- DISSOLVED BENZENE CONCENTRATION IN GROUNDWATER- NOT SAMPLED- LIGHT NON-AQUAEOUS PHASE LIQUID- BENZENE ISOCONCENTRATION CONTOUR- MICROGRAMS PER LITER- ESTIMATED LNAPL EXTENTUSTSOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-12(NS)(NS)(NS)(NS)(<0.50)(NS)(LNAPL)ug/LMW-142L STANDARD:1 ug/LGROSS CONTAMINATION LEVEL:5,000 ug/LSOLUBILITY OF BENZENE IN WATER:1.79 g/L (https://socratic.org)(<0.50)(12,000)(67)(LNAPL)(14,000)(NS)(5.3)(2,300)110
0
5,
0
0
0NOTES: MONITORING WELLS SAMPLED ON AUGUST 20, 2020.MW-2 VALUE NOT INCLUDED IN CONTOURING. (MW-2 WAS USED AS ASPARGE POINT DURING APRIL 2017, AND THE SCREENED INTERVAL ISSUBMERGED. THEREFORE, THE GROUNDWATER QUALITY CONDITIONS MAYBE ANOMALOUS RELATIVE TO CORE OF DISSOLVED CONSTITUENT PLUME).(2,300)MW-13MW-3 and
FIGURE NO.Drawing path: Q:\4305\2017\17-229 - NEEDHAM SERVICE STATION\B\Needham Figures.dwg
PROJECT NUMBERDATE:SCALE:N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALENEEDHAM SERVICE STATION
719 EAST MAIN STREET
PILOT MOUNTAIN, SURRY COUNTY, NORTH CAROLINA6SEPT. 2020EDB ISOCONCENTRATION CONTOUR MAP
(Site ID: 3510)AS SHOWN4305-17-229BSOURCE: SITE BASE MAP DEVELOPED FROM 2014 AERIAL PHOTOGRAPH.FORMERUST BASINFORMERNEEDHAM'SSERVICESTATIONSITEHURSTGARAGEFORMERDISPENSERISLANDMAIN STBLDGBLDGBLDGMW-10MW-11MW-9MW-8MW-7MW-5MW-3MW-2MW-6RMW-1RMW-14MW-12(<0.020)(NS)(NS)(<0.020)(0.27)(NS)LEGEND- MONITORING WELL LOCATION- UNDERGROUND STORAGE TANK- EDB CONCENTRATION IN GROUNDWATER- NOT SAMPLED- EDB ISOCONCENTRATION CONTOUR- ETHYLENE DIBROMIDE- MICROGRAMS PER LITER- ESTIMATED LNAPL EXTENT- LIGHT NON-AQUAEOUS PHASE LIQUIDUST(28)(NS)EDBug/L(0.77)(130)(28)(0.14)(<0.020)(NM)2L STANDARD:0.02 ug/LGROSS CONTAMINATION LEVEL:50 ug/LSOLUBILITY OF ETHYLENE DIBROMIDE IN WATER:0.404g/100g(http://pmep.cce.cornell.edu)0.0
2250(LNAPL)(LNAPL)MW-13NOTES: MONITORING WELLS SAMPLED ON AUGUST 20, 2020.MW-2 VALUE NOT INCLUDED IN CONTOURING. (MW-2 WAS USED AS ASPARGE POINT DURING APRIL 2017, AND THE SCREENED INTERVAL ISSUBMERGED. THEREFORE, THE GROUNDWATER QUALITY CONDITIONS MAYBE ANOMALOUS RELATIVE TO CORE OF DISSOLVED CONSTITUENT PLUME).MW-3 and

Appendix II – Tables

TABLE 1
UST SYSTEM INFORMATION
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
S&ME Project # 4305-17-229C
UST Facility ID # 0-00-000008029 Revision Date: 9/16/2020
UST
ID Number
Current/Last
Contents *
Previous
Contents *
Capacity
(gallons)
Construction
Details **
Tank
Dimensions
D/L (ft)
Description of
Associated Piping
and Pumps
Date UST
Installed
(mm/dd/yy)
Status of UST ***
Was Release
Associated With
UST System?
(Yes/No)
1 Gasoline Unknown 4,000 Unknown Approx. 5 x 28 Unknown Unknown Closed by removal;
10/22/1991 Yes
2 Gasoline Unknown 4,000 Unknown Approx. 5 x 28 Unknown Unknown Closed by removal;
10/22/1991 Yes
3 Gasoline Unknown 4,000 Unknown Approx. 5 x 28 Unknown Unknown Closed by removal;
10/22/1991 Yes
Incident
Number
Material
Released
Date of
Release Description of Release
3510 Gasoline Unknown
* : Gasoline (unleaded or leaded), diesel, used oil, waste oil, aviation fuel, etc., or pesticides, non-halogenated or halogenated solvents, etc.
** : Fiberglass (single- or double-walled), steel (single- or double-walled), steel with FRP (single- or double-walled), steel with liner, other, unknown.
*** : Currently operational, not in use or temporarily closed (specify date), permanently closed in place (specify date), permanently closed by removal (specify date)
A release due to a leaking elbow joint in the product pipeline was reported to the Surry County Fire Marshall. Following
removal of the tanks, analysis of two soil samples collected from the base of the excavation by Method 5030 resulted in total
petroleum hydrocarbon concentrations of 68 parts per million (ppm) and 350 ppm. Free product was reported in a monitor
well installed near the tank basin. (UST Closure Report identified Facility ID No. as 0-008960)
TABLE 2
UST OWNER INFORMATION
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
S&ME Project # 4305-17-229C
UST Facility ID # 0-00-000008029 Revision Date: 9/16/2020
1, 2, 3 C.B. Roberson Unknown to 10/22/1991 3510 Owner
-
Incident
Number
Owner or
Operator?
Address Telephone Number
UST/AST ID
Number(s)
Name of Owner or
Operator
Dates of Ownership /
Operation [(m/dd/yy) to
(m/dd/yy)]
P.O. Box 667 Halifax, VA
TABLE 3
WELL CONSTRUCTION AND LIQUID LEVEL DATA
Pilot Mountain, Surry County, North Carolina
S&ME Project # 4305-17-229C
UST Facility ID # 0-00-000008029 Revision Date: 9/16/2020
Well
ID
Date
Installed
Date
Water Level
Measured
Well
Casing
Depth
(ft BGS)
Well
Casing
Diameter
(in)
Depth
of Well
(ft-BGS)
Top of
Casing
Elevation*
(ft)
Depth to
Water
from Top
of Casing
(ft)
LNAPL
Thickness
** (ft)
Groundwater
Elevation*
(ft)
Latitude
(decimal)
Longitude
(decimal)
11/20/2008 38.28 0.00 61.72
1/5/2010 36.79 0.00 63.2110/15/2010 35.10 0.00 64.905/24/2011 36.16 0.00 63.842/22/2012 36.52 0.00 63.489/19/2012 36.42 0.00 63.583/13/2015 36.59 0.00 63.41
7/24/2019 34.60 0.00 65.40
8/20/2020 32.81 0.00 67.19
11/20/2008 41.16 0.00 59.68
1/5/2010 39.68 0.02 61.16
10/25/2010 37.00 0.00 63.84
5/24/2011 39.03 0.00 61.81
2/23/2012 39.87 0.00 60.97
9/19/2012 39.79 0.00 61.05
4/14/2014 37.97 0.00 62.87
3/13/2015 39.45 0.00 61.39
11/13/2017 39.87 0.00 60.97
4/22/2019 36.86 0.00 63.98
7/24/2019 37.24 0.00 63.60
8/20/2020 36.66 0.00 64.18
11/20/2008 36.85 0.00 63.47
1/5/2010 25.49 0.00 74.83
10/25/2010 24.95 0.00 75.37
5/24/2011 14.09 0.00 86.23
2/23/2012 2.81 0.00 97.51
9/19/2012 27.58 0.00 72.74
3/13/2015 25.63 0.00 74.69
8/20/2020 18.40 0.00 81.92
11/20/2008 39.34 0.00 58.72
1/5/2010 37.86 0.00 60.20
10/15/2010 36.40 0.00 61.66
5/11/2011 37.22 0.00 60.84
2/22/2012 37.87 0.00 60.19
9/19/2012 38.09 0.00 59.97
4/14/2014 36.09 0.00 61.97
7/24/2019 35.65 0.00 62.41
11/20/2008 41.89 0.14 59.47
1/5/2010 40.46 0.11 60.90
10/25/2010 39.13 0.00 62.23
5/24/2011 39.62 0.00 61.74
2/22/2012 40.21 0.00 61.15
9/19/2012 40.53 0.00 60.83
4/14/2014 38.63 0.00 62.73
3/13/2015 40.18 0.00 61.18
11/13/2017 40.87 0.00 60.49
4/22/2019 37.44 0.00 63.92
4/26/2019 37.28 0.00 64.08
7/24/2019 37.85 0.00 63.51
8/20/2020 37.31 0.00 64.05
11/20/2008 43.63 0.00 58.57
1/5/2010 40.98 0.00 61.22
10/15/2010 41.00 0.00 61.20
5/11/2011 41.38 0.00 60.82
2/22/2012 42.18 0.00 60.02
9/19/2012 42.50 0.00 59.70
4/14/2014 40.37 0.00 61.83
3/13/2015 42.14 0.00 60.06
11/13/2017 41.92 0.00 60.28
7/24/2019 40.02 0.00 62.18
8/20/2020 39.44 0.00 62.76
11/20/2008 43.55 0.00 57.73
1/5/2010 41.09 0.00 60.19
10/25/2010 41.14 0.00 60.14
5/11/2011 41.83 0.00 59.45
2/22/2012 41.99 0.00 59.29
9/19/2012 42.55 0.00 58.73
4/14/2014 39.98 0.00 61.30
11/13/2017 43.12 0.00 58.16
11/20/2008 27.74 0.00 51.66
1/5/2010 25.91 0.00 53.49
10/25/2010 26.11 0.00 53.29
5/11/2011 26.69 0.00 52.71
2/23/2012 26.25 0.00 53.15
9/19/2012 27.22 0.00 52.18
4/14/2014 24.56 0.00 54.84
3/13/2015 26.37 0.00 53.03
11/13/2017 27.44 0.00 51.96
7/24/2019 25.20 0.00 54.20
8/20/2020 31.30 0.00 48.10
11/20/2008 40.01 0.00 58.79
1/5/2010 38.54 0.00 60.26
10/15/2010 37.00 0.00 61.80
5/24/2011 38.12 0.00 60.68
2/22/2012 38.74 0.00 60.06
9/19/2012 38.70 0.00 60.10
7/24/2019 36.32 0.00 62.48
11/20/2008 7.46 0.00 43.92
1/5/2010 6.15 0.00 45.23
10/25/2010 7.17 0.00 44.21
5/11/2011 6.57 0.00 44.81
2/23/2012 6.55 0.00 44.83
9/19/2012 7.87 0.00 43.51
3/13/2015 36.54 0.00 63.54
11/13/2017 37.05 0.00 63.03
4/22/2019 33.83 0.00 66.25
4/26/2019 33.83 0.00 66.25
7/24/2019 34.40 0.00 65.68
8/20/2020 33.58 0.00 66.50
3/13/2015 40.10 0.64 61.38
11/13/2017 41.07 0.89 60.60
4/22/2019 37.82 1.00 63.93
4/26/2019 38.78 0.00 62.22
7/24/2019 39.22 0.02 61.79
8/20/2020 37.70 1.00 64.05
3/13/2015 38.78 0.00 62.01
11/13/2017 39.52 0.00 61.27
4/22/2019 36.32 0.00 64.47
4/26/2019 36.11 0.00 64.68
7/24/2019 36.74 0.00 64.05
8/20/2020 36.08 0.00 64.71
NOTES:
* : Reference Point for Elevation Measurements:Benchmark Datum:Benchmark Elevation: 100.00 ft
Assumed or Measured:
** : If LNAPL is present in a well, groundwater elevation should be calculated by: [Top of Casing Elevation - Depth to Water] + [LNAPL thickness x 0.7498]
ft-BGS = feet below ground surface NM = Not Measured NA = Not Applicable
ND = Not Detected NG = Not Gauged
52
05/21/07
03/12/15
1/17/05
1988
1988
1/17/2005
42
30
31 - 46
MW-1R top of casing
Measured
36.38279722 -80.45361111
36.38273611 -80.45277778
36.38256111 -80.45333333
36.38262222
35 - 50 50
98.0641.5 - 51.5 51.5
45.8
42 - 52
30 - 45
Unknown
101.00
51.38
101.28
98.80
19
45
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Screen
Interval
(ft-BGS)
MW-1R
MW-13
MW-11
MW-8
MW-10
MW-5
36.38298056 -80.45305556
-80.45555556
36.38330278 -80.45277778
100.00352
Unknown
41.5 2
31
2
2
2
2
MW-2 11/11/87 44.5 4 44.5 - 54.5 54.5 100.84 36.38261944 -80.45333333
MW-3 11/11/87 36.5 2 36.5 - 54 54 100.32 36.38241667 -80.45333333
MW-6R 8/1/2004 35 2 35 - 50 50 101.36 36.38268611 -80.45333333
MW-7 1988 36.38287500 -80.4530555644244 - 54 54 102.20
MW-9 1988 Unknown 2 Unknown 38 79.40 36.38307500 -80.45305556
MW-12 03/12/15 28 2 28 - 43 43.9 100.08 36.38326667 -80.45361111
MW-14 03/12/15 31 2 31 - 46 46.3 100.79 NM NM
Page 1 of 1
UST Facility ID # 0-00-000008029
Well
ID
Date
Collected Incident
Phase
TolueneEthylbenzeneXylenes (total)Methyl Tert Butyl EtherDiisopropyl etherAcetonen-Butylbenzenesec-butylbenzenen-PropylbenzeneStyreneIsopropyl benzenep-IsopropyltolueneNaphthaleneMethylene chlorideMethyl Butyl Ketone(2-Hexanone)Methyl Ethyl Ketone(2-Butanone)Methyl Isobutyl KetoneChloromethaneChloroformTrichloroetheneTetrachloroethylene1,2-Dibromoethane(EDB)1,2-Dichloroethane1,2-Dichloropropane1,2,3-Trichloropropane1 600 600 500 20 70 6,000 70 70 70 70 70 25 6 5 280 4,000 100 3 70 3 0.7 0.02 0.4 0.6 0.005 400 400
5,000 260,000 84,500 85,500 20,000 70,000 600,000 6,900 8,500 30,000 70,000 25,000 NL 6,000 5,000 280,000 400,000 100,000 3,000 70,000 3,000 700 50 400 600 NL 28,500 25,000
11/20/08 Monitoring ---------------------------------------------------------------10.5 ------------------
01/05/10 Monitoring <0.5 <0.5 <0.5 <0.5 1.9 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 18.6 <0.5 <0.5 <0.5 <0.5 0.6 <0.5
10/15/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 24.4 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
02/22/12 Monitoring <0.054 <0.057 <0.054 <0.17 1.2 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <1.5 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 0.27 J 23 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
09/19/12 Monitoring <0.054 <0.057 <0.054 <0.17 0.68 J <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <1.5 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <1.0 31 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
07/24/19 Monitoring <0.50 0.14 J <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <5.0 <5.0 <0.60 <0.50 <0.50 10 <0.020 <0.50 <0.50 <0.50 <0.50 <0.50
11/20/08 Monitoring 17,800 25,400 2,390 12,800 2,900 630 ---145 28.3 500 ---133 ---1,010 ------------------------145 702 11.5 ---3,520 970
10/25/10 Monitoring 13,700 20,100 2,610 15,380 2,390 418 ---<125 <125 499 <125 152 ---910 <500 ---------<250 ---<125 <125 <125 <125 <125 <125 3,750 1,020
05/24/11 Monitoring 1,900 3,520 717 5,250 210 42 ---<50.0 <5.0 123 <5.0 44 ---353 <20.0 ---------<10.0 ---<5.0 <5.0 15 13.5 <5.0 <5.0 1,580 444
02/23/12 Monitoring 7,400 8,600 900 5,100 1,400 190 1000 J <12 <11 120 <6.8 86 J <12 270 <15 200 650 J 100 J <6.4 <11 <8.8 <19 <8.2 <11 <12 <18 960 340
09/19/12 Monitoring 18,000 27,000 3,000 17,000 2,500 400 2,400 53 14 310 36 99 7.4 830 <20 490 560 190 <5.0 <5.0 <5.0 <5.0 140 150 <5.0 <5.0 2,800 590
03/13/15 Monitoring 740 645 66.9 311 119 18.7 ---<0.50 <0.50 6.6 0.95 2.6 ---14.4 <2.0 ---------<1.0 <0.50 <0.50 <0.50 7.1 5.0 <0.50 <0.50 58.5 16.9
07/24/19 Monitoring 47 24 24.0 90 2.9 0.49 J 74 J 3.5 0.74 7.1 <0.50 2.8 0.59 12 <5.0 <5.0 2.4 J <5.0 <0.50 0.17 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 50 15
08/20/20 Monitoring 67 23 17.0 72 3.1 0.6 6.8 J 3.5 1.4 4.5 0.027 22 6.2
11/20/08 Monitoring 0.76 1 ---1.09 2.32 ------ --- ------------------------------------------------------------
01/05/10 Monitoring 0.97 4.9 2.3 14.4 <0.5 <0.5 ---<0.5 <0.5 0.94 <0.5 <0.5 ---2.7 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 <0.5 <0.5 <0.5 7.5 2.2
10/25/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
05/24/11 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
02/23/12 Monitoring 0.29 J <0.057 <0.054 <0.17 <0.056 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 4.2 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
09/19/12 Monitoring <0.5 <0.057 <0.054 <0.17 <0.056 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
11/20/08 Monitoring 343 38.7 32.2 270 227 17.3 ---23.7 8.74 20.1 ---48.9 ---273 ------------------------------------85 20
01/05/10 Monitoring 106 8.1 14 127.3 101 7.1 ---88.1 <0.5 58.4 <0.5 53.5 ---183 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 2.8 <0.5 <0.5 186 90.9
10/15/10 Monitoring 14.8 <1.2 <1.2 18.7 35.5 <1.2 ---<1.2 <1.2 13.3 <1.2 15.7 ---65.5 <5 ---------<2.5 ---<1.2 <1.2 <1.2 <1.2 <1.2 <1.2 66.7 19.7
05/11/11 Monitoring 26.7 <1.0 <1.0 7.9 50.1 2.9 ---45.4 <1.0 10.6 <1.0 13.8 ---41.6 <4.0 ---------<2.0 ---<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 41.8 15
02/22/12 Monitoring 83 <0.57 <0.54 <1.7 170 10 <15 12 6.7 4.9 J <0.37 16 6.2 58 <0.73 <1.1 <8.3 <0.48 0.32 <0.53 <0.44 <0.96 <0.41 3.0 J <0.62 <0.90 11 7.7
09/19/12 Monitoring 44 <0.28 <0.27 <0.86 75 6 <7.6 15 5.8 5.8 <0.17 19 <0.30 77 <0.36 <0.56 <4.1 <0.24 <0.16 <0.26 <0.22 <0.48 <0.20 <0.27 <0.31 <0.45 11 5.1
07/24/19 Monitoring 63 1.0 0.56 J <3.0 35 <1.0 <100 18 5.4 1.4 <1.0 15 <1.0 53 <10 <10 <10 <10 <1.2 <1.0 <1.0 <1.0 <0.020 <1.0 <1.0 <1.0 <1.0 <1.0
11/20/08 Monitoring
01/05/10 Monitoring
10/25/10 Monitoring 11,300 9,040 2,270 12,770 1,200 220 ---<50 <50 323 <50 11 ---771 <200 ---------<100 ---<50 <50 <50 95.6 <50 <50 2,190 593
05/24/11 Monitoring 15,300 19,800 2,630 14,070 1,010 190 ---<50.0 <50.0 301 <50.0 95 ---519 <200 ---------<100 ---<50.0 <50.0 164 122 <50.0 <50.0 2,150 477
02/22/12 Monitoring 19,000 37,000 2,700 13,000 800 120 J <600 140 J <22 330 <14 190 J <24 710 <29 290 J <330 130 J <13 <21 <18 <38 310 <22 <25 <36 2,000 620
09/19/12 Monitoring 19,000 27,000 3,400 19,000 1,400 280 1,400 82 30 460 48 140 <3.0 970 <3.6 490 420 200 <1.6 <2.6 <2.2 <4.8 210 140 <3.1 <4.5 3,100 750
11/13/17 Monitoring 16,000 32,000 3,400 19,000 310 74 <2500 72 19 J 330 <25 120 <100 730 <250 <250 240 J <500 <25 <25 <25 <25 210 <25 <25 <25 2,700 <100
07/24/19 Monitoring 9,700 10,000 1,900 9,000 180 59 140 65 16 260 <10 99 8.8 J 600 <100 96 J 110 100 <12 7.2 J <10 <10 11 <10 15 <10 1,700 470
08/20/20 Monitoring 14,000 18,000 3,400 17,400 260 410 140 700 28 2,500 650
11/20/08 Monitoring 15,500 1,560 1,490 6,800 698 144 ---40.1 13.5 191 ---106 ---787 ------------------------7.99 ---31 ---1,070 259
01/15/10 Monitoring 2,620 307 303 2,980 367 35.3 ---<0.5 <0.5 9.7 3.6 11.1 ---475 <2.0 ---------<1.0 ---<1.0 <1.0 18.2 46 10 10 494 109
10/15/10 Monitoring 8,510 315 1,280 6,400 621 73.8 ---13.4 <12.5 124 <12.5 93 ---544 106 ---------<25 ---<12.5 <12.5 <12.5 69.7 15.8 <12.5 694 148
05/11/11 Monitoring 13,400 397 1,030 4,410 697 90.3 ---<50.0 <50.0 121 <50.0 95.4 ---644 <200 ---------<100 ---<50.0 <1.0 <50.0 93.6 <50.0 <50.0 409 91
02/22/12 Monitoring 10,000 400 1,300 5,000 480 60 J <300 88 J <11 180 <6.8 140 <12 650 <15 <200 <1000 150 J <6.4 <11 <8.8 <19 <8.2 56 J <12 <18 650 230
09/19/12 Monitoring 6,300 500 2,500 9,600 180 34 <3.0 33 <2.7 320 29 120 <3.0 850 <3.6 <5.6 <41 130 <1.6 <2.6 <2.2 <4.8 <2.0 <2.7 <3.1 <4.5 1,500 310
03/13/15 Monitoring 6,430 326 1,190 3,200 91.2 21.9 ---<2.0 5.9 120 9.5 51.5 ---411 50.4 ---------<4.0 <2.0 <2.0 <2.0 <2.0 17.2 11.9 <2.0 410 782
11/13/17 Monitoring 2,800 220 1,000 658 93 <25 <2500 23 J 9.5 J 130 <25 86 <100 550 <250 <250 <250 94 J <25 <25 <25 <25 <25 <25 <25 <25 19 J <100
07/24/19 Monitoring 930 6.0 49 <15 79 <5.0 <5.0 <5.0 <5.0 19 <5.0 77 <5.0 350 <50 <50 <50 120 <5.0 <5.0 <5.0 <5.0 0.054 <5.0 <5.0 <5.0 <5.0 <5.0
08/20/20 Monitoring 2,300 21 450 61 8.0 23 12 97 10 100 6.1 440 130 0.72 0.14 5.2 0.72 0.81
Analytical Method >>
Contaminant of Concern >>Benzene1,2,4-Trimethylbenzene6200B
Table 4
Summary of Water Sampling Results
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
S&ME Project No. 4305-17-229
MW-7
Revision Date: 9/16/2020
LNAPL - Not Sampled
LNAPL - Not Sampled 1,3,5-Trimethylbenzene2L Standard
GCL
MW-3
MW-5
MW-1R
MW-2
MW-6R
Page 1 of 2
UST Facility ID # 0-00-000008029
Well
ID
Date
Collected Incident
Phase
TolueneEthylbenzeneXylenes (total)Methyl Tert Butyl EtherDiisopropyl etherAcetonen-Butylbenzenesec-butylbenzenen-PropylbenzeneStyreneIsopropyl benzenep-IsopropyltolueneNaphthaleneMethylene chlorideMethyl Butyl Ketone(2-Hexanone)Methyl Ethyl Ketone(2-Butanone)Methyl Isobutyl KetoneChloromethaneChloroformTrichloroetheneTetrachloroethylene1,2-Dibromoethane(EDB)1,2-Dichloroethane1,2-Dichloropropane1,2,3-TrichloropropaneAnalytical Method >>
Contaminant of Concern >>Benzene1,2,4-Trimethylbenzene6200B
Table 4
Summary of Water Sampling Results
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
Pilot Mountain, Surry County, North Carolina
S&ME Project No. 4305-17-229
Revision Date: 9/16/2020
1,3,5-Trimethylbenzene2L Standard11/20/08 Monitoring 2,820 8.81 73.2 7.58 534 64.9 ---12 5.97 20.2 ---39.3 ---67.2 ---------------------------138 12.3 ---0.595 ---
01/05/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 <0.5 <0.5 <0.5 0.78 <0.5
10/25/10 Monitoring 632 3.2 17.8 10 162 16.1 ---3.9 1.5 6.1 <0.5 10.5 ---8.0 <2.0 ---------<1.0 ---<1.0 0.53 <0.5 20 <0.5 <0.5 <0.5 2.1
05/11/11 Monitoring 729 5.2 32.7 <2.5 172 15.4 ---<2.5 <2.5 7.4 <2.5 9.5 ---23.5 <10.0 ---------<5.0 ---<2.5 <1.0 <2.5 22.1 <2.5 <2.5 <2.5 <2.5
02/22/12 Monitoring 840 <1.1 26 <3.4 220 21 <30 12 9.2 J 9.8 J <0.68 28 <1.2 16 J <1.5 <17 <2.2 <0.96 <0.64 <1.1 <0.88 <1.9 <0.82 28 5.0 J <1.8 <0.76 <0.76
09/19/12 Monitoring 500 <0.28 12 <0.86 180 14 <7.6 6 4 4 <0.17 24 <0.30 4.0 J <0.36 <0.56 <4.1 <0.24 <0.16 <0.26 <0.22 <0.48 <0.20 21 3.6 <0.45 <0.19 <0.19
11/20/08 Monitoring 408 ---------146 10.6 ---0.55 ---------2.04 ---16.7 ---------------------------22.3 0.67 ---------
01/05/10 Monitoring 446 <0.5 <0.5 2.66 192 15.6 ---0.62 <0.5 <0.5 <0.5 2.8 ---14.9 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 23.6 1.5 <0.5 1.2 <05
10/25/10 Monitoring 115 <0.5 <0.5 <0.5 64.9 4.9 ---<0.5 <0.5 <0.5 <0.5 2 ---7.1 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 7.6 <0.5 <0.5 <0.5 1.3
05/11/11 Monitoring 177 <0.50 <0.50 <0.50 150 10.1 ---1.9 1.9 <0.50 <0.50 1.1 ---6.4 <2.0 ---------<1.0 ---<0.50 <1.0 <0.50 20.5 1.4 <2.0 <0.50 <0.50
02/23/12 Monitoring 240 <0.57 <0.54 <1.7 220 16 <15 4.4 J <0.54 <0.59 <0.34 8.4 <0.59 7.2 J <0.73 <1.1 <8.3 <0.48 <0.61 <0.53 <0.50 <0.96 <0.41 27 <0.62 <0.90 <0.38 <0.38
09/19/12 Monitoring 34 <0.057 <0.054 <0.17 51 3.3 <0.059 <0.059 <0.054 <0.059 <0.034 <0.034 <0.053 1.6 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 6.7 0.55 <0.090 <0.038 <0.038
03/13/15 Monitoring 16.8 <0.50 <0.50 <1.50 78.1 5.5 ---<0.50 <0.50 <0.50 <0.50 0.82 ---<2.0 <2.0 ---------<1.0 <0.50 <0.50 <0.50 <0.50 11.1 1.1 <0.50 <0.50 <0.50
11/13/17 Monitoring 23 <0.50 <0.50 0.19 J 46 3.5 <50 0.24 J 0.25 J <0.50 <0.50 0.82 J <2.0 2.7 J <5.0 <5.0 <5.0 <10 <2.0 <0.50 <0.50 <0.50 <0.50 5.5 0.69 <0.50 <0.50 <2.0
07/24/19 Monitoring 6.8 <0.50 <0.50 0.27 J 24 1.7 <50 <0.50 <0.50 <0.50 <0.50 0.29 J <0.50 <0.50 <5.0 <5.0 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
08/20/20 Monitoring 5.3 21 1.5 0.49 J 1.9 0.62
11/20/08 Monitoring ------------------------------------------------------------------------------------
01/05/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
10/15/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
05/24/11 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 ---------<1.0 ---<1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
02/22/12 Monitoring <0.054 <0.057 <0.054 <0.17 <0.056 <0.042 <1.5 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
09/19/12 Monitoring <0.054 <0.057 <0.054 <0.17 <0.056 <0.042 <0.059 <0.059 <0.054 <0.059 <0.034 <0.034 <0.059 <0.094 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 <0.044 <0.096 <0.041 <0.054 <0.062 <0.090 <0.038 <0.038
7/24/2019 1 Monitoring <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.020 <0.50 <0.50 <0.50 <0.50 <0.50
11/20/08 Monitoring 236 ------6.9 54.9 5.86 ---1.57 1.21 ------7.31 ---30.1 ------------------1.12 3.48 ---21.6 1.49 ---5.14 ---
01/05/10 Monitoring 88.7 <0.5 <0.5 3.9 29 3 ---0.79 0.79 <0.5 <0.5 3.8 ---15.9 <2.0 ---------3.1 ---0.82 3.1 <0.5 8.3 0.85 <0.5 <0.5 <0.5
10/25/10 Monitoring 132 <0.5 <0.5 3.7 40.4 4.1 ---1.1 <0.5 <0.5 <0.5 2.5 ---21 <2.0 ---------<1.0 ---0.9 3.0 <0.5 10.4 1.1 <0.5 1.0 <0.5
05/11/11 Monitoring 87.2 <0.50 <0.50 1.3 24.2 2.2 ---1.9 <0.50 <0.50 <0.50 0.94 ---8 <2.0 ---------<1.0 ---0.55 2.1 <0.50 7.1 0.62 <0.50 <0.50 <0.50
02/23/12 Monitoring 56 <0.057 <0.054 1.6 23 2.4 <1.5 0.85 0.8 <0.059 <0.034 1.1 <0.059 12 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 0.65 2.7 <0.041 4.7 0.51 <0.090 0.52 <0.038
09/19/12 Monitoring 70 <0.057 <0.054 1.2 J 22 2.8 15 0.81 0.75 <0.059 <0.034 <0.034 <0.059 12 <0.073 <0.11 <0.83 <0.048 <0.032 <0.053 0.53 2.9 <0.041 8.8 <0.062 <0.090 <0.038 <0.038
03/13/15 Monitoring 6.1 52.8 31.6 250.2 4 0.57 ---2.5 <0.50 14.1 <0.50 3.6 ---2.4 <2.0 ---------<1.0 9.1 <0.50 <0.50 0.44 <0.50 <0.50 <0.50 75.5 30.4
11/13/17 Monitoring 0.61 0.22 J <0.50 0.59 J 4.8 3.1 <50 <0.50 <0.50 <0.50 <0.50 <2.0 <2.0 <5.0 <2.0 ---------<1.0 3.2 <0.50 2.4 <0.50 <0.50 <0.50 <0.50 <1.8 0.30 J
07/24/19 Monitoring <0.50 0.17 J <0.50 0.33 J 7.5 0.89 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <5.0 <5.0 <0.60 3.3 <0.50 2.7 <0.50 <0.50 <0.50 <0.50 <1.8 0.30 J
08/20/20 Monitoring 5.6 0.84 2.6 2.4 0.077 0.54 1.6
03/13/15 Monitoring
11/13/17 Monitoring
07/24/19 Monitoring
08/20/20 Monitoring
03/13/15 Monitoring 9,780 15200 2470 13070 2170 82.5 ---<25.0 <25.0 317 <25.0 116 ---630 354 ---------<50.0 <25.0 <25.0 <25.0 85.5 41.9 <25.0 <25.0 2,090 553
11/15/17 Monitoring 9,000 15,000 2,700 16,100 2,100 110 3,100 79 20 J 330 <25 120 <100 630 <250 1,100 1,100 200 J <25 <25 <25 <25 110 <25 <25 <25 2,700 620
07/24/19 Monitoring 9,500 15,000 1,800 10,000 1,700 160 2,400 85 20 J 280 <50 130 <50 700 <500 680 880 280 J <50 <50 <50 <50 130 <50 <50 <50 2,200 510
08/20/20 Monitoring 12,000 19,000 2,600 13,200 2,600 180 4,800 J 110 J 430 180 1,500 840 J 1,700 130 2,300 550
11/20/08 Monitoring ------------------------------------------------------------------------------------
01/15/10 Monitoring <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 ---<0.5 <0.5 <0.5 <0.5 <0.5 ---<2.0 <2.0 <0.5 <0.5 ---<1.0 <0.5 <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
Notes:
Results reported in micrograms per liter (µg/L)
LNAPL = Light Non-aquaeous phase liquid Value Concentration exceeds the 2L Standard
--- : No detected above laboratory reporting limits.Value Concentration exceeds the GCL
2L Standard = 15A NCAC 2L .0202 Groundwater Quality Standard
GCL = Gross Contamination Level
1 - 1,2-Dichlorobenzene reported in sample and field blank at estimated concentrations less than the 2L Standard
LNAPL - Not Sampled
LNAPL - Not Sampled
LNAPL - Not Sampled
MW-10
MW-11
LNAPL - Not Sampled
MW-9
MW-12
WSW-1
MW-8
MW-13
MW-14
Page 2 of 2

Appendix III - Photo Log

Draft Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 i

Date: 1/5/2010 Photographer: G. Simcox Location / Orientation East of building, across Bypass 52, facing west.
Remarks On-site building and paved parking lot.

Date: 1/5/2010 Photographer: G. Simcox
Location / Orientation From on-site parking lot facing northeast.
Remarks Bypass 52 with Hurst Garage in the background.
Draft Monitoring Report
Needham Service Station, Incident #3510, UST No. WS-2467
719 Main Street
Pilot Mountain, North Carolina
S&ME Project No. 4305-17-229C
September 18, 2020 ii

Date: 11/5/2010 Photographer: G. Simcox Location / Orientation From Bypass 52 curb, east of building, facing southwest.
Remarks Monitoring well MW-6R; MW-2 in left background.

Date: 1/5/2010 Photographer: G. Simcox
Location / Orientation From east of building facing west.
Remarks Monitoring well MW-13; MW-14 in left background.

Appendix IV – Field Notes and Field Sampling Forms

Date
(1)
Revision:
FREE PRODUCT AND WATER LEVEL GAUGING FORM
80
Date:
Air Temp. (°F):
STF-3510 Needham Sevice Station
719 East Main St. Pilot Mountain, N.C.
4305-17-229C
Overcast
Project Number:August 20, 2020
Project Name:
Project Location:
Weather:
MW-14 Flush Mount NP 36.08 46.0 15.0 31.0 NP
Screen
Length
(feet)
14.0
15.5
15.0
10.0
10.0
All measurements were collected from the Top of Casing (TOC)
NP = Not Present
Notes:
Free Product
Below Top of
Well Screen?
(Yes/No)
Yes
NP
Not Present
Blocked
Damaged
NP
NP
NP
Unknown
NP
Unknown
15.0
0.00
50.0 35.0 0.0037.31Flush Mount NP
Flush Mount NP
0.00
15.0
33.58 43.3 28.3 0.00
18.40 49.2
MW-6R 15.0
0.00
MW-8 Stick Up 45.5 35.5
10.0
Flush Mount NP
Name
MW-9
8/20/2020
Signature
33.7
MW-2 Flush Mount NP 36.66 52.3 42.3
MW-7 Flush Mount NP 39.44 54.5 39.5
MW-5
Flush Mount NP
Time
MW-13 31.5 1.00
49.7 39.7
MW-1R NP 32.81 49.3 34.3 0.00
MW-3
Flush Mount
9/1/17 12:50 PM
31.30 37.5 Unknown
0.00
Water Level & Well Data
Depth to
Free
Product
(ft-TOC)
Depth to
Water
(ft-TOC)
Well ID
Top of
Screen
Depth
(ft-TOC)
Free
Product
Thickness
(feet)
Flush Mount
/ Stick Up
Flush Mount 36.70 37.70 45.5
Matthew Brundage
Total Well
Depth
(ft-TOC)
0.00
MW-12
° F
36.66 ft-TOC inch
49.20 ft-TOC gal
12.54 feet gal
15 ft-GRD gal
ft-GRD
10:40 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
10:40 5.6 21.1 333 Clear
10:50 5.9 21 249 Turbid
11:00 5.9 20.4 211 Turbid
11:05
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Form Revision Date:
Mattew Brundage 8/20/2020
9/13/17 8:00 AM
Name Signature Date
Analytical Data
Method Method Container
VOCs 6200
Sample Method:Bailer Sample Time:
(Gal)
8.0
16.0
24.0
Total Volume Purged:24.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Stickup Height:
Well Purging Information
Purge Method:Submersible Pump Purge Start Time:11:00
Height of Water Column:3 * Well Volume 24.6
Screen Length:5 * Well Volume 40.9
Depth to Water:Well Diameter 4
Total Well Depth:Well Volume 8.2
Weather:Overcast Air Temp:82
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Locked?:No Sample Date:August 20, 2020
Sampled By:M Brundage Sample Time:11:05
Project Number:4305-17-229 Purge Date:August 20, 2020
Source Well:MW-2 Purge Time (Min.):20
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
° F
18.40 ft-TOC inch
48.40 ft-TOC gal
30.00 feet gal
ft-GRD gal
ft-GRD
12:00 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
12:00 5.5 21.4 408 clear
12:17 5.9 22 311 turbid
12:35 6.1 21.1 287 turbid
12:40
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
3 40mL VOAs NaS2O3
(1)
Notes:
Form Revision Date:
Mattew Brundage 9/18/2020
9/13/17 8:00 AM
Name Signature Date
EDB 504.1
Analytical Data
Method Method Container
VOCs 6200
Sample Method:Bailer Sample Time:
(Gal)
5.0
10.0
15.0
Total Volume Purged:15.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 24.5
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:12:35
Total Well Depth:Well Volume 4.9
Height of Water Column:3 * Well Volume 14.7
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
Weather:Overcast Air Temp:80
Locked?:No Sample Date:August 20, 2020
Sampled By:M Brundage Sample Time:12:40
Project Number:4305-17-229 Purge Date:August 20, 2020
Source Well:MW-3 Purge Time (Min.):35
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
° F
37.31 ft-TOC inch
50.00 ft-TOC gal
12.69 feet gal
15 ft-GRD gal
ft-GRD
10:15 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
10:15 5.7 20.8 421 Clear
10:20 6.2 20.3 399 Turbid
10:25 6.1 20.1 197 Turbid
10:25
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Project Number:4305-17-229 Purge Date:August 20, 2020
Source Well:MW-6R Purge Time (Min.):10
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
Weather:Overcast Air Temp:47
Locked?:Yes Sample Date:August 20, 2020
Sampled By:M Brundage Sample Time:10:25
Total Well Depth:Well Volume 2.1
Height of Water Column:3 * Well Volume 6.2
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
Total Volume Purged:6.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 10.4
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:10:25
(Gal)
2.0
4.0
6.0
Sample Method:Bailer Sample Time:
Analytical Data
Method Method Container
VOCs 6200
Mattew Brundage 9/18/2020
Name Signature Date
° F
39.44 ft-TOC inch
54.50 ft-TOC gal
15.06 feet gal
ft-GRD gal
ft-GRD
13:30 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
13:30 5.9 21.5 289 clear
13:40 6.0 21.1 277 turbid
13:50 5.7 20.3 117 turbid
14:00
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
3 40mL VOAs
(1)
Notes:
Form Revision Date:
Project Number:4305-17-229 Purge Date:August 20, 2020
Source Well:MW-7 Purge Time (Min.):20
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
Weather:Overcast Air Temp:80
Locked?:No Sample Date:August 20, 2020
Sampled By:M Brundage Sample Time:14:00
Total Well Depth:Well Volume 2.5
Height of Water Column:3 * Well Volume 7.4
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
Total Volume Purged:7.5 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 12.3
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:13:50
(Gal)
2.5
5.0
7.5
Sample Method:Bailer Sample Time:
EDB 504.1
Analytical Data
Method Method Container
VOCs 6200
Mattew Brundage 8/20/2020
9/13/17 8:00 AM
Name Signature Date
° F
31.30 ft-TOC inch
37.50 ft-TOC gal
6.20 feet gal
ft-GRD gal
ft-GRD
15:15 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
15:15 6.7 21.4 233 Clear
15:20 6.7 20.6 199 turbid
15:25 6.7 20.2 202 turbid
15:30
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
3 40mL VOAs
(1)
Notes:
Form Revision Date:
Project Number:4305-17-229 Purge Date:August 20, 2020
Source Well:MW-9 Purge Time (Min.):10
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
Weather:Overcast Air Temp:80
Locked?:Yes Sample Date:August 20, 2020
Sampled By:M Brundage Sample Time:15:30
Total Well Depth:Well Volume 1.0
Height of Water Column:3 * Well Volume 3.0
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
Total Volume Purged:3.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 5.1
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:15:25
(Gal)
0.0
1.5
3.0
Sample Method:Bailer Sample Time:
EDB 504.1
Analytical Data
Method Method Container
VOCs 6200
Mattew Brundage 9/18/2020
9/13/17 8:00 AM
Name Signature Date
° F
33.58 ft-TOC inch
43.30 ft-TOC gal
9.72 feet gal
15 ft-GRD gal
ft-GRD
12:45 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
12:45 7.1 21.3 202 Turbid
12:52 6.8 21 168 Turbid
13:00 6.1 19.8 141 Turbid
13:05
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
(1)
Notes:
Form Revision Date:
Project Number:4305-17-229 Purge Date:August 20, 2020
Source Well:MW-12 Purge Time (Min.):15
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
Weather:Overcast Air Temp:82
Locked?:Yes Sample Date:August 20, 2020
Sampled By:M Brundage Sample Time:13:05
Total Well Depth:Well Volume 1.6
Height of Water Column:3 * Well Volume 4.8
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
Total Volume Purged:6.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 7.9
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:13:00
(Gal)
2.0
4.0
6.0
Sample Method:Bailer Sample Time:
Analytical Data
Method Method Container
VOCs 6200
Mattew Brundage 8/20/2020
9/13/17 8:00 AM
Name Signature Date
° F
36.08 ft-TOC inch
46.00 ft-TOC gal
9.92 feet gal
ft-GRD gal
ft-GRD
11:20 End Time:
gal
Time pH Temp Cond Turbidity
(s.u.)(°C) µS/cm (NTU)
11:20 6.1 21.3 377 clear
11:30 6.1 20.8 309 turbid
11:40 5.8 21 287 turbid
11:40
Qty Container Pres.Qty Pres.
3 40mL VOAs HCl
3 40mL VOAs HNO3
(1)
Notes:
Form Revision Date:
Project Number:4305-17-229 Purge Date:August 20, 2020
Source Well:MW-14 Purge Time (Min.):20
GROUNDWATER SAMPLING FORM
Project Name:STF-3510 Needham Service Station
Project Location:719 East Main St, Pilot Mountain , N.C.
Weather:Overcast Air Temp:47
Locked?:Yes Sample Date:August 20, 2020
Sampled By:M Brundage Sample Time:11:40
Total Well Depth:Well Volume 1.6
Height of Water Column:3 * Well Volume 4.9
Water Level & Well Data
Measuring Point:Top of Casing Well Volume
Depth to Water:Well Diameter 2
Total Volume Purged:5.0 Well Purged Dry?:No
Field Parameters
Cumulative Volume Comments
Screen Length:5 * Well Volume 8.1
Stickup Height:
Well Purging Information
Purge Method:Bailer Purge Start Time:11:40
(Gal)
1.5
3.0
5.0
Sample Method:Bailer Sample Time:
EDB 504.1
Analytical Data
Method Method Container
VOCs 6200
Mattew Brundage 8/20/2020
9/13/17 8:00 AM
Name Signature Date

Appendix V – Laboratory Analytical Report and Chain of Custody
Form

39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
September 2, 2020
Lyndal Butler
S&ME Inc. Charlotte, NC
9751 Southern Pine Blvd.
Charlotte, NC 28273
Project Location: 719 E. Main Street, Pilot Mnt, NC
Client Job Number:
Project Number: 4305-17-229C
Laboratory Work Order Number: 20H1272
Enclosed are results of analyses for samples received by the laboratory on August 25, 2020. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kerry K. McGee
Project Manager
Page 1 of 61
Table of Contents
Table of Contents
Sample Summary 3
Hits Only Report 4
Case Narrative 8
Sample Results 10
20H1272-01 10
20H1272-02 12
20H1272-03 15
20H1272-04 18
20H1272-05 21
20H1272-06 24
20H1272-07 27
20H1272-08 30
Sample Preparation Information 33
QC Data 34
Volatile Organic Compounds by GC/MS 34
B265255 34
B265315 38
B265432 42
Drinking Water Organics EPA 504.1 47
B265249 47
Dual Column RPD Report 48
Flag/Qualifier Summary 56
Certifications 57
Chain of Custody/Sample Receipt 59
Page 2 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
9/2/2020
S&ME Inc. Charlotte, NC
9751 Southern Pine Blvd.
Charlotte, NC 28273
ATTN: Lyndal Butler
4305-17-229C
20H1272
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
719 E. Main Street, Pilot Mnt, NC
FB 20H1272-01 Field Blank SM21-22 6200B
MW-2 20H1272-02 Ground Water EPA 504.1
SM21-22 6200B
MW-3 20H1272-03 Ground Water EPA 504.1
SM21-22 6200B
MW-6R 20H1272-04 Ground Water EPA 504.1
SM21-22 6200B
MW-7 20H1272-05 Ground Water EPA 504.1
SM21-22 6200B
MW-9 20H1272-06 Ground Water EPA 504.1
SM21-22 6200B
MW-12 20H1272-07 Ground Water EPA 504.1
SM21-22 6200B
MW-14 20H1272-08 Ground Water EPA 504.1
SM21-22 6200B
[TOC_1]Sample Summary[TOC]
Page 3 of 61
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:20H1272-03MW-3
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 61
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
20H1272-01FB
DL
Acetone 5.6 50 g/L SM21-22 6200BJ3.8
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
20H1272-02MW-2
DL
1,2,4-Trimethylbenzene 22 0.50 g/L SM21-22 6200B0.18
1,3,5-Trimethylbenzene 6.2 0.50 g/L SM21-22 6200B0.14
Acetone 6.8 50 g/L SM21-22 6200BJ3.8
Benzene 67 0.50 g/L SM21-22 6200B0.18
Diisopropyl Ether (DIPE)0.60 0.50 g/L SM21-22 6200B0.17
Ethylbenzene 17 0.50 g/L SM21-22 6200B0.13
Isopropylbenzene (Cumene)1.4 0.50 g/L SM21-22 6200B0.17
m+p Xylene 57 1.0 g/L SM21-22 6200B0.30
Methyl tert-Butyl Ether (MTBE)3.1 0.50 g/L SM21-22 6200B0.25
Naphthalene 4.5 0.50 g/L SM21-22 6200B0.31
n-Propylbenzene 3.5 0.50 g/L SM21-22 6200B0.13
o-Xylene 15 0.50 g/L SM21-22 6200B0.17
Toluene 23 0.50 g/L SM21-22 6200B0.14
1,2-Dibromoethane (EDB) [2C]0.027 0.020 g/L EPA 504.10.012
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
20H1272-04MW-6R
DL
1,2,4-Trimethylbenzene 2500 100 g/L SM21-22 6200B36
1,3,5-Trimethylbenzene 650 100 g/L SM21-22 6200B28
Benzene 14000 100 g/L SM21-22 6200B36
Ethylbenzene 3400 100 g/L SM21-22 6200B26
Isopropylbenzene (Cumene)140 100 g/L SM21-22 6200B34
m+p Xylene 12000 200 g/L SM21-22 6200B60
Methyl tert-Butyl Ether (MTBE)260 100 g/L SM21-22 6200B50
Naphthalene 700 100 g/L SM21-22 6200B62
n-Propylbenzene 410 100 g/L SM21-22 6200B26
o-Xylene 5400 100 g/L SM21-22 6200B34
Toluene 18000 100 g/L SM21-22 6200B28
1,2-Dibromoethane (EDB) [2C]28 2.0 g/L EPA 504.11.2
Page 5 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
20H1272-05MW-7
DL
1,2,4-Trimethylbenzene 0.72 0.50 g/L SM21-22 6200B0.18
1,2-Dichloropropane 5.2 0.50 g/L SM21-22 6200B0.20
1,3,5-Trimethylbenzene 0.81 0.50 g/L SM21-22 6200B0.14
4-Methyl-2-pentanone (MIBK)130 5.0 g/L SM21-22 6200B1.7
Benzene 2300 50 g/L SM21-22 6200B18
Diisopropyl Ether (DIPE)8.0 0.50 g/L SM21-22 6200B0.17
Ethylbenzene 450 50 g/L SM21-22 6200B13
Isopropylbenzene (Cumene)100 0.50 g/L SM21-22 6200B0.17
m+p Xylene 15 1.0 g/L SM21-22 6200B0.30
Methyl tert-Butyl Ether (MTBE)61 0.50 g/L SM21-22 6200B0.25
Naphthalene 440 50 g/L SM21-22 6200B31
n-Butylbenzene 23 0.50 g/L SM21-22 6200B0.21
n-Propylbenzene 97 0.50 g/L SM21-22 6200B0.13
o-Xylene 73 0.50 g/L SM21-22 6200B0.17
p-Isopropyltoluene (p-Cymene)6.1 0.50 g/L SM21-22 6200B0.20
sec-Butylbenzene 12 0.50 g/L SM21-22 6200B0.16
Styrene 10 0.50 g/L SM21-22 6200B0.11
tert-Butylbenzene 0.51 0.50 g/L SM21-22 6200B0.17
Tetrachloroethylene 0.72 0.50 g/L SM21-22 6200B0.18
Toluene 21 0.50 g/L SM21-22 6200B0.14
1,2-Dibromoethane (EDB) [2C]0.14 0.020 g/L EPA 504.10.012
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
20H1272-06MW-9
DL
1,2,4-Trimethylbenzene 0.62 0.50 g/L SM21-22 6200B0.18
1,2-Dichloroethane 1.9 0.50 g/L SM21-22 6200B0.41
Benzene 5.3 0.50 g/L SM21-22 6200B0.18
Diisopropyl Ether (DIPE)1.5 0.50 g/L SM21-22 6200B0.17
Isopropylbenzene (Cumene)0.49 0.50 g/L SM21-22 6200BJ0.17
Methyl tert-Butyl Ether (MTBE)21 0.50 g/L SM21-22 6200B0.25
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
20H1272-07MW-12
DL
1,2,4-Trimethylbenzene 0.54 0.50 g/L SM21-22 6200B0.18
1,3,5-Trimethylbenzene 1.6 0.50 g/L SM21-22 6200B0.14
Chloroform 2.6 0.50 g/L SM21-22 6200B0.17
Diisopropyl Ether (DIPE)0.84 0.50 g/L SM21-22 6200B0.17
Methyl tert-Butyl Ether (MTBE)5.6 0.50 g/L SM21-22 6200B0.25
Tetrachloroethylene 2.4 0.50 g/L SM21-22 6200B0.18
1,2-Dibromoethane (EDB) [2C]0.077 0.020 g/L EPA 504.10.012
Page 6 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Client ID:Lab ID:
Analyte Results/Qual RL Units Method
20H1272-08MW-14
DL
1,2,4-Trimethylbenzene 2300 120 g/L SM21-22 6200B45
1,2-Dibromoethane (EDB)85 120 g/L SM21-22 6200BJ48
1,3,5-Trimethylbenzene 550 120 g/L SM21-22 6200B35
2-Butanone (MEK)1700 1200 g/L SM21-22 6200B480
2-Hexanone (MBK)840 1200 g/L SM21-22 6200BJ380
Acetone 4800 12000 g/L SM21-22 6200BJ950
Benzene 12000 120 g/L SM21-22 6200B45
Diisopropyl Ether (DIPE)180 120 g/L SM21-22 6200B42
Ethylbenzene 2600 120 g/L SM21-22 6200B32
Isopropylbenzene (Cumene)180 120 g/L SM21-22 6200B42
m+p Xylene 8500 250 g/L SM21-22 6200B75
Methyl tert-Butyl Ether (MTBE)2600 120 g/L SM21-22 6200B62
Naphthalene 1500 120 g/L SM21-22 6200B78
n-Butylbenzene 110 120 g/L SM21-22 6200BJ52
n-Propylbenzene 430 120 g/L SM21-22 6200B32
o-Xylene 4700 120 g/L SM21-22 6200B42
Toluene 19000 120 g/L SM21-22 6200B35
1,2-Dibromoethane (EDB) [2C]130 10 g/L EPA 504.16.0
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 7 of 61
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 limit for samples 20H1272-04+08 due to high concentrations of target compounds.
For method 6200B, sample(s) 20H1272-05 ran at a dilution due to the concentration of target compounds exceeding the calibration curve limits.
[TOC_1]Case Narrative[TOC]
SM21-22 6200B
Qualifications:
Laboratory fortified blank/laboratory control sample recovery and duplicate recoveries outside of control limits. Data validation is not
affected since all results are "not detected" for associated samples in this batch and bias is on the high side.
Analyte & Samples(s) Qualified:
L-02
Bromomethane
B265432-BS1, B265432-BSD1
Chloromethane
B265255-BS1, B265255-BSD1
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
Ethanol
B265432-BLK1, B265432-BS1, B265432-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
Acetone
B265315-BSD1
pH of sample (pH 5) is outside of method specified preservation criteria.
Analyte & Samples(s) Qualified:
PR-08
20H1272-08[MW-14]
Elevated reporting limit due to high concentration of target compounds.
Analyte & Samples(s) Qualified:
RL-11
20H1272-04[MW-6R], 20H1272-08[MW-14]
Page 8 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
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 9 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-01
Field Sample #: FB
Sample Matrix: Field Blank
Sampled: 8/20/2020 10:15
[TOC_2]20H1272-01[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
5.6 50 8/27/20 12:52 MFFg/L3.8 8/27/20SM21-22 6200B1JAcetone
ND 0.50 8/27/20 12:52 MFFg/L0.18 8/27/20SM21-22 6200B1Benzene
ND 0.50 8/27/20 12:52 MFFg/L0.15 8/27/20SM21-22 6200B1Bromobenzene
ND 0.50 8/27/20 12:52 MFFg/L0.32 8/27/20SM21-22 6200B1Bromochloromethane
ND 0.50 8/27/20 12:52 MFFg/L0.16 8/27/20SM21-22 6200B1Bromodichloromethane
ND 0.50 8/27/20 12:52 MFFg/L0.46 8/27/20SM21-22 6200B1Bromoform
ND 2.0 8/27/20 12:52 MFFg/L1.4 8/27/20SM21-22 6200B1Bromomethane
ND 5.0 8/27/20 12:52 MFFg/L1.9 8/27/20SM21-22 6200B12-Butanone (MEK)
ND 0.50 8/27/20 12:52 MFFg/L0.21 8/27/20SM21-22 6200B1n-Butylbenzene
ND 0.50 8/27/20 12:52 MFFg/L0.16 8/27/20SM21-22 6200B1sec-Butylbenzene
ND 0.50 8/27/20 12:52 MFFg/L0.17 8/27/20SM21-22 6200B1tert-Butylbenzene
ND 0.50 8/27/20 12:52 MFFg/L0.11 8/27/20SM21-22 6200B1Carbon Tetrachloride
ND 0.50 8/27/20 12:52 MFFg/L0.15 8/27/20SM21-22 6200B1Chlorobenzene
ND 50 8/27/20 12:52 MFFg/L11 8/27/20SM21-22 6200B1Ethanol
ND 0.50 8/27/20 12:52 MFFg/L0.21 8/27/20SM21-22 6200B1Chlorodibromomethane
ND 0.50 8/27/20 12:52 MFFg/L0.36 8/27/20SM21-22 6200B1Chloroethane
ND 0.50 8/27/20 12:52 MFFg/L0.17 8/27/20SM21-22 6200B1Chloroform
ND 1.0 8/27/20 12:52 MFFg/L0.45 8/27/20SM21-22 6200B1Chloromethane
ND 0.50 8/27/20 12:52 MFFg/L0.12 8/27/20SM21-22 6200B12-Chlorotoluene
ND 0.50 8/27/20 12:52 MFFg/L0.14 8/27/20SM21-22 6200B14-Chlorotoluene
ND 0.50 8/27/20 12:52 MFFg/L0.19 8/27/20SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 8/27/20 12:52 MFFg/L0.16 8/27/20SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 8/27/20 12:52 MFFg/L0.12 8/27/20SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 8/27/20 12:52 MFFg/L0.13 8/27/20SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 8/27/20 12:52 MFFg/L0.26 8/27/20SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 8/27/20 12:52 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloroethane
ND 0.50 8/27/20 12:52 MFFg/L0.41 8/27/20SM21-22 6200B11,2-Dichloroethane
ND 0.50 8/27/20 12:52 MFFg/L0.32 8/27/20SM21-22 6200B11,1-Dichloroethylene
ND 0.50 8/27/20 12:52 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 8/27/20 12:52 MFFg/L0.31 8/27/20SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 8/27/20 12:52 MFFg/L0.20 8/27/20SM21-22 6200B11,2-Dichloropropane
ND 0.50 8/27/20 12:52 MFFg/L0.11 8/27/20SM21-22 6200B11,3-Dichloropropane
ND 0.50 8/27/20 12:52 MFFg/L0.20 8/27/20SM21-22 6200B12,2-Dichloropropane
ND 0.50 8/27/20 12:52 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloropropene
ND 0.50 8/27/20 12:52 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 8/27/20 12:52 MFFg/L0.23 8/27/20SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 8/27/20 12:52 MFFg/L0.17 8/27/20SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 8/27/20 12:52 MFFg/L0.13 8/27/20SM21-22 6200B1Ethylbenzene
ND 5.0 8/27/20 12:52 MFFg/L1.5 8/27/20SM21-22 6200B12-Hexanone (MBK)
ND 0.50 8/27/20 12:52 MFFg/L0.17 8/27/20SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 8/27/20 12:52 MFFg/L0.20 8/27/20SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 8/27/20 12:52 MFFg/L0.25 8/27/20SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 8/27/20 12:52 MFFg/L0.34 8/27/20SM21-22 6200B1Methylene Chloride
ND 5.0 8/27/20 12:52 MFFg/L1.7 8/27/20SM21-22 6200B14-Methyl-2-pentanone (MIBK)
[TOC_1]Sample Results[TOC]
Page 10 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-01
Field Sample #: FB
Sample Matrix: Field Blank
Sampled: 8/20/2020 10:15
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 8/27/20 12:52 MFFg/L0.31 8/27/20SM21-22 6200B1Naphthalene
ND 0.50 8/27/20 12:52 MFFg/L0.13 8/27/20SM21-22 6200B1n-Propylbenzene
ND 0.50 8/27/20 12:52 MFFg/L0.11 8/27/20SM21-22 6200B1Styrene
ND 0.50 8/27/20 12:52 MFFg/L0.22 8/27/20SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 8/27/20 12:52 MFFg/L0.18 8/27/20SM21-22 6200B1Tetrachloroethylene
ND 0.50 8/27/20 12:52 MFFg/L0.14 8/27/20SM21-22 6200B1Toluene
ND 1.0 8/27/20 12:52 MFFg/L0.57 8/27/20SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 8/27/20 12:52 MFFg/L0.40 8/27/20SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 8/27/20 12:52 MFFg/L0.20 8/27/20SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 8/27/20 12:52 MFFg/L0.16 8/27/20SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 8/27/20 12:52 MFFg/L0.24 8/27/20SM21-22 6200B1Trichloroethylene
ND 0.50 8/27/20 12:52 MFFg/L0.33 8/27/20SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 8/27/20 12:52 MFFg/L0.25 8/27/20SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 8/27/20 12:52 MFFg/L0.18 8/27/20SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 8/27/20 12:52 MFFg/L0.14 8/27/20SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 8/27/20 12:52 MFFg/L10 8/27/20SM21-22 6200B1Vinyl Acetate
ND 0.50 8/27/20 12:52 MFFg/L0.45 8/27/20SM21-22 6200B1Vinyl Chloride
ND 1.0 8/27/20 12:52 MFFg/L0.30 8/27/20SM21-22 6200B1m+p Xylene
ND 0.50 8/27/20 12:52 MFFg/L0.17 8/27/20SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 104 8/27/20 12:5270-130
Toluene-d8 99.4 8/27/20 12:5270-130
4-Bromofluorobenzene 100 8/27/20 12:5270-130
Page 11 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-02
Field Sample #: MW-2
Sample Matrix: Ground Water
Sampled: 8/20/2020 11:05
[TOC_2]20H1272-02[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
6.8 50 8/27/20 13:18 MFFg/L3.8 8/27/20SM21-22 6200B1JAcetone
67 0.50 8/27/20 13:18 MFFg/L0.18 8/27/20SM21-22 6200B1Benzene
ND 0.50 8/27/20 13:18 MFFg/L0.15 8/27/20SM21-22 6200B1Bromobenzene
ND 0.50 8/27/20 13:18 MFFg/L0.32 8/27/20SM21-22 6200B1Bromochloromethane
ND 0.50 8/27/20 13:18 MFFg/L0.16 8/27/20SM21-22 6200B1Bromodichloromethane
ND 0.50 8/27/20 13:18 MFFg/L0.46 8/27/20SM21-22 6200B1Bromoform
ND 2.0 8/27/20 13:18 MFFg/L1.4 8/27/20SM21-22 6200B1Bromomethane
ND 5.0 8/27/20 13:18 MFFg/L1.9 8/27/20SM21-22 6200B12-Butanone (MEK)
ND 0.50 8/27/20 13:18 MFFg/L0.21 8/27/20SM21-22 6200B1n-Butylbenzene
ND 0.50 8/27/20 13:18 MFFg/L0.16 8/27/20SM21-22 6200B1sec-Butylbenzene
ND 0.50 8/27/20 13:18 MFFg/L0.17 8/27/20SM21-22 6200B1tert-Butylbenzene
ND 0.50 8/27/20 13:18 MFFg/L0.11 8/27/20SM21-22 6200B1Carbon Tetrachloride
ND 0.50 8/27/20 13:18 MFFg/L0.15 8/27/20SM21-22 6200B1Chlorobenzene
ND 50 8/27/20 13:18 MFFg/L11 8/27/20SM21-22 6200B1Ethanol
ND 0.50 8/27/20 13:18 MFFg/L0.21 8/27/20SM21-22 6200B1Chlorodibromomethane
ND 0.50 8/27/20 13:18 MFFg/L0.36 8/27/20SM21-22 6200B1Chloroethane
ND 0.50 8/27/20 13:18 MFFg/L0.17 8/27/20SM21-22 6200B1Chloroform
ND 1.0 8/27/20 13:18 MFFg/L0.45 8/27/20SM21-22 6200B1Chloromethane
ND 0.50 8/27/20 13:18 MFFg/L0.12 8/27/20SM21-22 6200B12-Chlorotoluene
ND 0.50 8/27/20 13:18 MFFg/L0.14 8/27/20SM21-22 6200B14-Chlorotoluene
ND 0.50 8/27/20 13:18 MFFg/L0.19 8/27/20SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 8/27/20 13:18 MFFg/L0.16 8/27/20SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 8/27/20 13:18 MFFg/L0.12 8/27/20SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 8/27/20 13:18 MFFg/L0.13 8/27/20SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 8/27/20 13:18 MFFg/L0.26 8/27/20SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 8/27/20 13:18 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloroethane
ND 0.50 8/27/20 13:18 MFFg/L0.41 8/27/20SM21-22 6200B11,2-Dichloroethane
ND 0.50 8/27/20 13:18 MFFg/L0.32 8/27/20SM21-22 6200B11,1-Dichloroethylene
ND 0.50 8/27/20 13:18 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 8/27/20 13:18 MFFg/L0.31 8/27/20SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 8/27/20 13:18 MFFg/L0.20 8/27/20SM21-22 6200B11,2-Dichloropropane
ND 0.50 8/27/20 13:18 MFFg/L0.11 8/27/20SM21-22 6200B11,3-Dichloropropane
ND 0.50 8/27/20 13:18 MFFg/L0.20 8/27/20SM21-22 6200B12,2-Dichloropropane
ND 0.50 8/27/20 13:18 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloropropene
ND 0.50 8/27/20 13:18 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 8/27/20 13:18 MFFg/L0.23 8/27/20SM21-22 6200B1trans-1,3-Dichloropropene
0.60 0.50 8/27/20 13:18 MFFg/L0.17 8/27/20SM21-22 6200B1Diisopropyl Ether (DIPE)
17 0.50 8/27/20 13:18 MFFg/L0.13 8/27/20SM21-22 6200B1Ethylbenzene
ND 5.0 8/27/20 13:18 MFFg/L1.5 8/27/20SM21-22 6200B12-Hexanone (MBK)
1.4 0.50 8/27/20 13:18 MFFg/L0.17 8/27/20SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 8/27/20 13:18 MFFg/L0.20 8/27/20SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
3.1 0.50 8/27/20 13:18 MFFg/L0.25 8/27/20SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 8/27/20 13:18 MFFg/L0.34 8/27/20SM21-22 6200B1Methylene Chloride
ND 5.0 8/27/20 13:18 MFFg/L1.7 8/27/20SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 12 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-02
Field Sample #: MW-2
Sample Matrix: Ground Water
Sampled: 8/20/2020 11:05
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
4.5 0.50 8/27/20 13:18 MFFg/L0.31 8/27/20SM21-22 6200B1Naphthalene
3.5 0.50 8/27/20 13:18 MFFg/L0.13 8/27/20SM21-22 6200B1n-Propylbenzene
ND 0.50 8/27/20 13:18 MFFg/L0.11 8/27/20SM21-22 6200B1Styrene
ND 0.50 8/27/20 13:18 MFFg/L0.22 8/27/20SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 8/27/20 13:18 MFFg/L0.18 8/27/20SM21-22 6200B1Tetrachloroethylene
23 0.50 8/27/20 13:18 MFFg/L0.14 8/27/20SM21-22 6200B1Toluene
ND 1.0 8/27/20 13:18 MFFg/L0.57 8/27/20SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 8/27/20 13:18 MFFg/L0.40 8/27/20SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 8/27/20 13:18 MFFg/L0.20 8/27/20SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 8/27/20 13:18 MFFg/L0.16 8/27/20SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 8/27/20 13:18 MFFg/L0.24 8/27/20SM21-22 6200B1Trichloroethylene
ND 0.50 8/27/20 13:18 MFFg/L0.33 8/27/20SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 8/27/20 13:18 MFFg/L0.25 8/27/20SM21-22 6200B11,2,3-Trichloropropane
22 0.50 8/27/20 13:18 MFFg/L0.18 8/27/20SM21-22 6200B11,2,4-Trimethylbenzene
6.2 0.50 8/27/20 13:18 MFFg/L0.14 8/27/20SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 8/27/20 13:18 MFFg/L10 8/27/20SM21-22 6200B1Vinyl Acetate
ND 0.50 8/27/20 13:18 MFFg/L0.45 8/27/20SM21-22 6200B1Vinyl Chloride
57 1.0 8/27/20 13:18 MFFg/L0.30 8/27/20SM21-22 6200B1m+p Xylene
15 0.50 8/27/20 13:18 MFFg/L0.17 8/27/20SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 103 8/27/20 13:1870-130
Toluene-d8 101 8/27/20 13:1870-130
4-Bromofluorobenzene 101 8/27/20 13:1870-130
Page 13 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-02
Field Sample #: MW-2
Sample Matrix: Ground Water
Sampled: 8/20/2020 11:05
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Drinking Water Organics EPA 504.1
0.027 0.020 8/28/20 2:45 JMBg/L0.012 8/27/20EPA 504.111,2-Dibromoethane (EDB) (2)
Surrogates % Recovery Recovery Limits Flag/Qual
1,3-Dibromopropane (2)108 8/28/20 2:4570-130
Page 14 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-03
Field Sample #: MW-3
Sample Matrix: Ground Water
Sampled: 8/20/2020 12:40
[TOC_2]20H1272-03[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 8/27/20 13:45 MFFg/L3.8 8/27/20SM21-22 6200B1Acetone
ND 0.50 8/27/20 13:45 MFFg/L0.18 8/27/20SM21-22 6200B1Benzene
ND 0.50 8/27/20 13:45 MFFg/L0.15 8/27/20SM21-22 6200B1Bromobenzene
ND 0.50 8/27/20 13:45 MFFg/L0.32 8/27/20SM21-22 6200B1Bromochloromethane
ND 0.50 8/27/20 13:45 MFFg/L0.16 8/27/20SM21-22 6200B1Bromodichloromethane
ND 0.50 8/27/20 13:45 MFFg/L0.46 8/27/20SM21-22 6200B1Bromoform
ND 2.0 8/27/20 13:45 MFFg/L1.4 8/27/20SM21-22 6200B1Bromomethane
ND 5.0 8/27/20 13:45 MFFg/L1.9 8/27/20SM21-22 6200B12-Butanone (MEK)
ND 0.50 8/27/20 13:45 MFFg/L0.21 8/27/20SM21-22 6200B1n-Butylbenzene
ND 0.50 8/27/20 13:45 MFFg/L0.16 8/27/20SM21-22 6200B1sec-Butylbenzene
ND 0.50 8/27/20 13:45 MFFg/L0.17 8/27/20SM21-22 6200B1tert-Butylbenzene
ND 0.50 8/27/20 13:45 MFFg/L0.11 8/27/20SM21-22 6200B1Carbon Tetrachloride
ND 0.50 8/27/20 13:45 MFFg/L0.15 8/27/20SM21-22 6200B1Chlorobenzene
ND 50 8/27/20 13:45 MFFg/L11 8/27/20SM21-22 6200B1Ethanol
ND 0.50 8/27/20 13:45 MFFg/L0.21 8/27/20SM21-22 6200B1Chlorodibromomethane
ND 0.50 8/27/20 13:45 MFFg/L0.36 8/27/20SM21-22 6200B1Chloroethane
ND 0.50 8/27/20 13:45 MFFg/L0.17 8/27/20SM21-22 6200B1Chloroform
ND 1.0 8/27/20 13:45 MFFg/L0.45 8/27/20SM21-22 6200B1Chloromethane
ND 0.50 8/27/20 13:45 MFFg/L0.12 8/27/20SM21-22 6200B12-Chlorotoluene
ND 0.50 8/27/20 13:45 MFFg/L0.14 8/27/20SM21-22 6200B14-Chlorotoluene
ND 0.50 8/27/20 13:45 MFFg/L0.19 8/27/20SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 8/27/20 13:45 MFFg/L0.16 8/27/20SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 8/27/20 13:45 MFFg/L0.12 8/27/20SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 8/27/20 13:45 MFFg/L0.13 8/27/20SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 8/27/20 13:45 MFFg/L0.26 8/27/20SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 8/27/20 13:45 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloroethane
ND 0.50 8/27/20 13:45 MFFg/L0.41 8/27/20SM21-22 6200B11,2-Dichloroethane
ND 0.50 8/27/20 13:45 MFFg/L0.32 8/27/20SM21-22 6200B11,1-Dichloroethylene
ND 0.50 8/27/20 13:45 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 8/27/20 13:45 MFFg/L0.31 8/27/20SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 8/27/20 13:45 MFFg/L0.20 8/27/20SM21-22 6200B11,2-Dichloropropane
ND 0.50 8/27/20 13:45 MFFg/L0.11 8/27/20SM21-22 6200B11,3-Dichloropropane
ND 0.50 8/27/20 13:45 MFFg/L0.20 8/27/20SM21-22 6200B12,2-Dichloropropane
ND 0.50 8/27/20 13:45 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloropropene
ND 0.50 8/27/20 13:45 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 8/27/20 13:45 MFFg/L0.23 8/27/20SM21-22 6200B1trans-1,3-Dichloropropene
ND 0.50 8/27/20 13:45 MFFg/L0.17 8/27/20SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 8/27/20 13:45 MFFg/L0.13 8/27/20SM21-22 6200B1Ethylbenzene
ND 5.0 8/27/20 13:45 MFFg/L1.5 8/27/20SM21-22 6200B12-Hexanone (MBK)
ND 0.50 8/27/20 13:45 MFFg/L0.17 8/27/20SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 8/27/20 13:45 MFFg/L0.20 8/27/20SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
ND 0.50 8/27/20 13:45 MFFg/L0.25 8/27/20SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 8/27/20 13:45 MFFg/L0.34 8/27/20SM21-22 6200B1Methylene Chloride
ND 5.0 8/27/20 13:45 MFFg/L1.7 8/27/20SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 15 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-03
Field Sample #: MW-3
Sample Matrix: Ground Water
Sampled: 8/20/2020 12:40
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 8/27/20 13:45 MFFg/L0.31 8/27/20SM21-22 6200B1Naphthalene
ND 0.50 8/27/20 13:45 MFFg/L0.13 8/27/20SM21-22 6200B1n-Propylbenzene
ND 0.50 8/27/20 13:45 MFFg/L0.11 8/27/20SM21-22 6200B1Styrene
ND 0.50 8/27/20 13:45 MFFg/L0.22 8/27/20SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 8/27/20 13:45 MFFg/L0.18 8/27/20SM21-22 6200B1Tetrachloroethylene
ND 0.50 8/27/20 13:45 MFFg/L0.14 8/27/20SM21-22 6200B1Toluene
ND 1.0 8/27/20 13:45 MFFg/L0.57 8/27/20SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 8/27/20 13:45 MFFg/L0.40 8/27/20SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 8/27/20 13:45 MFFg/L0.20 8/27/20SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 8/27/20 13:45 MFFg/L0.16 8/27/20SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 8/27/20 13:45 MFFg/L0.24 8/27/20SM21-22 6200B1Trichloroethylene
ND 0.50 8/27/20 13:45 MFFg/L0.33 8/27/20SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 8/27/20 13:45 MFFg/L0.25 8/27/20SM21-22 6200B11,2,3-Trichloropropane
ND 0.50 8/27/20 13:45 MFFg/L0.18 8/27/20SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 8/27/20 13:45 MFFg/L0.14 8/27/20SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 8/27/20 13:45 MFFg/L10 8/27/20SM21-22 6200B1Vinyl Acetate
ND 0.50 8/27/20 13:45 MFFg/L0.45 8/27/20SM21-22 6200B1Vinyl Chloride
ND 1.0 8/27/20 13:45 MFFg/L0.30 8/27/20SM21-22 6200B1m+p Xylene
ND 0.50 8/27/20 13:45 MFFg/L0.17 8/27/20SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 102 8/27/20 13:4570-130
Toluene-d8 100 8/27/20 13:4570-130
4-Bromofluorobenzene 99.4 8/27/20 13:4570-130
Page 16 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-03
Field Sample #: MW-3
Sample Matrix: Ground Water
Sampled: 8/20/2020 12:40
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Drinking Water Organics EPA 504.1
ND 0.020 8/28/20 3:09 JMBg/L0.012 8/27/20EPA 504.111,2-Dibromoethane (EDB) (2)
Surrogates % Recovery Recovery Limits Flag/Qual
1,3-Dibromopropane (2)96.3 8/28/20 3:0970-130
Page 17 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-04
Field Sample #: MW-6R
Sample Matrix: Ground Water
Sampled: 8/20/2020 10:25
[TOC_2]20H1272-04[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
ND 10000 8/29/20 1:44 MFFg/L760 8/28/20SM21-22 6200B200Acetone
14000 100 8/29/20 1:44 MFFg/L36 8/28/20SM21-22 6200B200Benzene
ND 100 8/29/20 1:44 MFFg/L30 8/28/20SM21-22 6200B200Bromobenzene
ND 100 8/29/20 1:44 MFFg/L64 8/28/20SM21-22 6200B200Bromochloromethane
ND 100 8/29/20 1:44 MFFg/L32 8/28/20SM21-22 6200B200Bromodichloromethane
ND 100 8/29/20 1:44 MFFg/L92 8/28/20SM21-22 6200B200Bromoform
ND 400 8/29/20 1:44 MFFg/L280 8/28/20SM21-22 6200B200Bromomethane
ND 1000 8/29/20 1:44 MFFg/L390 8/28/20SM21-22 6200B2002-Butanone (MEK)
ND 100 8/29/20 1:44 MFFg/L42 8/28/20SM21-22 6200B200n-Butylbenzene
ND 100 8/29/20 1:44 MFFg/L32 8/28/20SM21-22 6200B200sec-Butylbenzene
ND 100 8/29/20 1:44 MFFg/L34 8/28/20SM21-22 6200B200tert-Butylbenzene
ND 100 8/29/20 1:44 MFFg/L22 8/28/20SM21-22 6200B200Carbon Tetrachloride
ND 100 8/29/20 1:44 MFFg/L30 8/28/20SM21-22 6200B200Chlorobenzene
ND 10000 8/29/20 1:44 MFFg/L2100 8/28/20SM21-22 6200B200Ethanol
ND 100 8/29/20 1:44 MFFg/L42 8/28/20SM21-22 6200B200Chlorodibromomethane
ND 100 8/29/20 1:44 MFFg/L72 8/28/20SM21-22 6200B200Chloroethane
ND 100 8/29/20 1:44 MFFg/L34 8/28/20SM21-22 6200B200Chloroform
ND 200 8/29/20 1:44 MFFg/L90 8/28/20SM21-22 6200B200Chloromethane
ND 100 8/29/20 1:44 MFFg/L24 8/28/20SM21-22 6200B2002-Chlorotoluene
ND 100 8/29/20 1:44 MFFg/L28 8/28/20SM21-22 6200B2004-Chlorotoluene
ND 100 8/29/20 1:44 MFFg/L38 8/28/20SM21-22 6200B2001,2-Dibromoethane (EDB)
ND 100 8/29/20 1:44 MFFg/L32 8/28/20SM21-22 6200B2001,2-Dichlorobenzene
ND 100 8/29/20 1:44 MFFg/L24 8/28/20SM21-22 6200B2001,3-Dichlorobenzene
ND 100 8/29/20 1:44 MFFg/L26 8/28/20SM21-22 6200B2001,4-Dichlorobenzene
ND 100 8/29/20 1:44 MFFg/L52 8/28/20SM21-22 6200B200Dichlorodifluoromethane (Freon 12)
ND 100 8/29/20 1:44 MFFg/L32 8/28/20SM21-22 6200B2001,1-Dichloroethane
ND 100 8/29/20 1:44 MFFg/L82 8/28/20SM21-22 6200B2001,2-Dichloroethane
ND 100 8/29/20 1:44 MFFg/L64 8/28/20SM21-22 6200B2001,1-Dichloroethylene
ND 100 8/29/20 1:44 MFFg/L26 8/28/20SM21-22 6200B200cis-1,2-Dichloroethylene
ND 100 8/29/20 1:44 MFFg/L62 8/28/20SM21-22 6200B200trans-1,2-Dichloroethylene
ND 100 8/29/20 1:44 MFFg/L40 8/28/20SM21-22 6200B2001,2-Dichloropropane
ND 100 8/29/20 1:44 MFFg/L22 8/28/20SM21-22 6200B2001,3-Dichloropropane
ND 100 8/29/20 1:44 MFFg/L40 8/28/20SM21-22 6200B2002,2-Dichloropropane
ND 100 8/29/20 1:44 MFFg/L32 8/28/20SM21-22 6200B2001,1-Dichloropropene
ND 100 8/29/20 1:44 MFFg/L26 8/28/20SM21-22 6200B200cis-1,3-Dichloropropene
ND 100 8/29/20 1:44 MFFg/L46 8/28/20SM21-22 6200B200trans-1,3-Dichloropropene
ND 100 8/29/20 1:44 MFFg/L34 8/28/20SM21-22 6200B200Diisopropyl Ether (DIPE)
3400 100 8/29/20 1:44 MFFg/L26 8/28/20SM21-22 6200B200Ethylbenzene
ND 1000 8/29/20 1:44 MFFg/L300 8/28/20SM21-22 6200B2002-Hexanone (MBK)
140 100 8/29/20 1:44 MFFg/L34 8/28/20SM21-22 6200B200Isopropylbenzene (Cumene)
ND 100 8/29/20 1:44 MFFg/L40 8/28/20SM21-22 6200B200p-Isopropyltoluene (p-Cymene)
260 100 8/29/20 1:44 MFFg/L50 8/28/20SM21-22 6200B200Methyl tert-Butyl Ether (MTBE)
ND 1000 8/29/20 1:44 MFFg/L68 8/28/20SM21-22 6200B200Methylene Chloride
ND 1000 8/29/20 1:44 MFFg/L330 8/28/20SM21-22 6200B2004-Methyl-2-pentanone (MIBK)
Page 18 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-04
Field Sample #: MW-6R
Sample Matrix: Ground Water
Sampled: 8/20/2020 10:25
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: RL-11 Volatile Organic Compounds by GC/MS
700 100 8/29/20 1:44 MFFg/L62 8/28/20SM21-22 6200B200Naphthalene
410 100 8/29/20 1:44 MFFg/L26 8/28/20SM21-22 6200B200n-Propylbenzene
ND 100 8/29/20 1:44 MFFg/L22 8/28/20SM21-22 6200B200Styrene
ND 100 8/29/20 1:44 MFFg/L44 8/28/20SM21-22 6200B2001,1,2,2-Tetrachloroethane
ND 100 8/29/20 1:44 MFFg/L36 8/28/20SM21-22 6200B200Tetrachloroethylene
18000 100 8/29/20 1:44 MFFg/L28 8/28/20SM21-22 6200B200Toluene
ND 200 8/29/20 1:44 MFFg/L110 8/28/20SM21-22 6200B2001,2,3-Trichlorobenzene
ND 100 8/29/20 1:44 MFFg/L80 8/28/20SM21-22 6200B2001,2,4-Trichlorobenzene
ND 100 8/29/20 1:44 MFFg/L40 8/28/20SM21-22 6200B2001,1,1-Trichloroethane
ND 100 8/29/20 1:44 MFFg/L32 8/28/20SM21-22 6200B2001,1,2-Trichloroethane
ND 100 8/29/20 1:44 MFFg/L48 8/28/20SM21-22 6200B200Trichloroethylene
ND 100 8/29/20 1:44 MFFg/L66 8/28/20SM21-22 6200B200Trichlorofluoromethane (Freon 11)
ND 100 8/29/20 1:44 MFFg/L50 8/28/20SM21-22 6200B2001,2,3-Trichloropropane
2500 100 8/29/20 1:44 MFFg/L36 8/28/20SM21-22 6200B2001,2,4-Trimethylbenzene
650 100 8/29/20 1:44 MFFg/L28 8/28/20SM21-22 6200B2001,3,5-Trimethylbenzene
ND 4000 8/29/20 1:44 MFFg/L2000 8/28/20SM21-22 6200B200Vinyl Acetate
ND 100 8/29/20 1:44 MFFg/L90 8/28/20SM21-22 6200B200Vinyl Chloride
12000 200 8/29/20 1:44 MFFg/L60 8/28/20SM21-22 6200B200m+p Xylene
5400 100 8/29/20 1:44 MFFg/L34 8/28/20SM21-22 6200B200o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 103 8/29/20 1:4470-130
Toluene-d8 103 8/29/20 1:4470-130
4-Bromofluorobenzene 103 8/29/20 1:4470-130
Page 19 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-04
Field Sample #: MW-6R
Sample Matrix: Ground Water
Sampled: 8/20/2020 10:25
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Drinking Water Organics EPA 504.1
28 2.0 8/28/20 8:44 JMBg/L1.2 8/27/20EPA 504.11001,2-Dibromoethane (EDB) (2)
Surrogates % Recovery Recovery Limits Flag/Qual
1,3-Dibromopropane (2)100 8/28/20 3:3270-130
Page 20 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-05
Field Sample #: MW-7
Sample Matrix: Ground Water
Sampled: 8/20/2020 14:00
[TOC_2]20H1272-05[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 8/27/20 15:04 MFFg/L3.8 8/27/20SM21-22 6200B1Acetone
2300 50 8/31/20 20:21 LBDg/L18 8/31/20SM21-22 6200B100Benzene
ND 0.50 8/27/20 15:04 MFFg/L0.15 8/27/20SM21-22 6200B1Bromobenzene
ND 0.50 8/27/20 15:04 MFFg/L0.32 8/27/20SM21-22 6200B1Bromochloromethane
ND 0.50 8/27/20 15:04 MFFg/L0.16 8/27/20SM21-22 6200B1Bromodichloromethane
ND 0.50 8/27/20 15:04 MFFg/L0.46 8/27/20SM21-22 6200B1Bromoform
ND 2.0 8/27/20 15:04 MFFg/L1.4 8/27/20SM21-22 6200B1Bromomethane
ND 5.0 8/27/20 15:04 MFFg/L1.9 8/27/20SM21-22 6200B12-Butanone (MEK)
23 0.50 8/27/20 15:04 MFFg/L0.21 8/27/20SM21-22 6200B1n-Butylbenzene
12 0.50 8/27/20 15:04 MFFg/L0.16 8/27/20SM21-22 6200B1sec-Butylbenzene
0.51 0.50 8/27/20 15:04 MFFg/L0.17 8/27/20SM21-22 6200B1tert-Butylbenzene
ND 0.50 8/27/20 15:04 MFFg/L0.11 8/27/20SM21-22 6200B1Carbon Tetrachloride
ND 0.50 8/27/20 15:04 MFFg/L0.15 8/27/20SM21-22 6200B1Chlorobenzene
ND 50 8/27/20 15:04 MFFg/L11 8/27/20SM21-22 6200B1Ethanol
ND 0.50 8/27/20 15:04 MFFg/L0.21 8/27/20SM21-22 6200B1Chlorodibromomethane
ND 0.50 8/27/20 15:04 MFFg/L0.36 8/27/20SM21-22 6200B1Chloroethane
ND 0.50 8/27/20 15:04 MFFg/L0.17 8/27/20SM21-22 6200B1Chloroform
ND 1.0 8/27/20 15:04 MFFg/L0.45 8/27/20SM21-22 6200B1Chloromethane
ND 0.50 8/27/20 15:04 MFFg/L0.12 8/27/20SM21-22 6200B12-Chlorotoluene
ND 0.50 8/27/20 15:04 MFFg/L0.14 8/27/20SM21-22 6200B14-Chlorotoluene
ND 0.50 8/27/20 15:04 MFFg/L0.19 8/27/20SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 8/27/20 15:04 MFFg/L0.16 8/27/20SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 8/27/20 15:04 MFFg/L0.12 8/27/20SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 8/27/20 15:04 MFFg/L0.13 8/27/20SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 8/27/20 15:04 MFFg/L0.26 8/27/20SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 8/27/20 15:04 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloroethane
ND 0.50 8/27/20 15:04 MFFg/L0.41 8/27/20SM21-22 6200B11,2-Dichloroethane
ND 0.50 8/27/20 15:04 MFFg/L0.32 8/27/20SM21-22 6200B11,1-Dichloroethylene
ND 0.50 8/27/20 15:04 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 8/27/20 15:04 MFFg/L0.31 8/27/20SM21-22 6200B1trans-1,2-Dichloroethylene
5.2 0.50 8/27/20 15:04 MFFg/L0.20 8/27/20SM21-22 6200B11,2-Dichloropropane
ND 0.50 8/27/20 15:04 MFFg/L0.11 8/27/20SM21-22 6200B11,3-Dichloropropane
ND 0.50 8/27/20 15:04 MFFg/L0.20 8/27/20SM21-22 6200B12,2-Dichloropropane
ND 0.50 8/27/20 15:04 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloropropene
ND 0.50 8/27/20 15:04 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 8/27/20 15:04 MFFg/L0.23 8/27/20SM21-22 6200B1trans-1,3-Dichloropropene
8.0 0.50 8/27/20 15:04 MFFg/L0.17 8/27/20SM21-22 6200B1Diisopropyl Ether (DIPE)
450 50 8/31/20 20:21 LBDg/L13 8/31/20SM21-22 6200B100Ethylbenzene
ND 5.0 8/27/20 15:04 MFFg/L1.5 8/27/20SM21-22 6200B12-Hexanone (MBK)
100 0.50 8/27/20 15:04 MFFg/L0.17 8/27/20SM21-22 6200B1Isopropylbenzene (Cumene)
6.1 0.50 8/27/20 15:04 MFFg/L0.20 8/27/20SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
61 0.50 8/27/20 15:04 MFFg/L0.25 8/27/20SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 8/27/20 15:04 MFFg/L0.34 8/27/20SM21-22 6200B1Methylene Chloride
130 5.0 8/27/20 15:04 MFFg/L1.7 8/27/20SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 21 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-05
Field Sample #: MW-7
Sample Matrix: Ground Water
Sampled: 8/20/2020 14:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
440 50 8/31/20 20:21 LBDg/L31 8/31/20SM21-22 6200B100Naphthalene
97 0.50 8/27/20 15:04 MFFg/L0.13 8/27/20SM21-22 6200B1n-Propylbenzene
10 0.50 8/27/20 15:04 MFFg/L0.11 8/27/20SM21-22 6200B1Styrene
ND 0.50 8/27/20 15:04 MFFg/L0.22 8/27/20SM21-22 6200B11,1,2,2-Tetrachloroethane
0.72 0.50 8/27/20 15:04 MFFg/L0.18 8/27/20SM21-22 6200B1Tetrachloroethylene
21 0.50 8/27/20 15:04 MFFg/L0.14 8/27/20SM21-22 6200B1Toluene
ND 1.0 8/27/20 15:04 MFFg/L0.57 8/27/20SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 8/27/20 15:04 MFFg/L0.40 8/27/20SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 8/27/20 15:04 MFFg/L0.20 8/27/20SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 8/27/20 15:04 MFFg/L0.16 8/27/20SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 8/27/20 15:04 MFFg/L0.24 8/27/20SM21-22 6200B1Trichloroethylene
ND 0.50 8/27/20 15:04 MFFg/L0.33 8/27/20SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 8/27/20 15:04 MFFg/L0.25 8/27/20SM21-22 6200B11,2,3-Trichloropropane
0.72 0.50 8/27/20 15:04 MFFg/L0.18 8/27/20SM21-22 6200B11,2,4-Trimethylbenzene
0.81 0.50 8/27/20 15:04 MFFg/L0.14 8/27/20SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 8/27/20 15:04 MFFg/L10 8/27/20SM21-22 6200B1Vinyl Acetate
ND 0.50 8/27/20 15:04 MFFg/L0.45 8/27/20SM21-22 6200B1Vinyl Chloride
15 1.0 8/27/20 15:04 MFFg/L0.30 8/27/20SM21-22 6200B1m+p Xylene
73 0.50 8/27/20 15:04 MFFg/L0.17 8/27/20SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 82.2 8/31/20 20:2170-130
1,2-Dichloroethane-d4 104 8/27/20 15:0470-130
Toluene-d8 94.7 8/31/20 20:2170-130
Toluene-d8 101 8/27/20 15:0470-130
4-Bromofluorobenzene 97.3 8/31/20 20:2170-130
4-Bromofluorobenzene 107 8/27/20 15:0470-130
Page 22 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-05
Field Sample #: MW-7
Sample Matrix: Ground Water
Sampled: 8/20/2020 14:00
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Drinking Water Organics EPA 504.1
0.14 0.020 8/28/20 3:56 JMBg/L0.012 8/27/20EPA 504.111,2-Dibromoethane (EDB) (2)
Surrogates % Recovery Recovery Limits Flag/Qual
1,3-Dibromopropane (2)87.1 8/28/20 3:5670-130
Page 23 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-06
Field Sample #: MW-9
Sample Matrix: Ground Water
Sampled: 8/20/2020 15:30
[TOC_2]20H1272-06[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 8/27/20 14:11 MFFg/L3.8 8/27/20SM21-22 6200B1Acetone
5.3 0.50 8/27/20 14:11 MFFg/L0.18 8/27/20SM21-22 6200B1Benzene
ND 0.50 8/27/20 14:11 MFFg/L0.15 8/27/20SM21-22 6200B1Bromobenzene
ND 0.50 8/27/20 14:11 MFFg/L0.32 8/27/20SM21-22 6200B1Bromochloromethane
ND 0.50 8/27/20 14:11 MFFg/L0.16 8/27/20SM21-22 6200B1Bromodichloromethane
ND 0.50 8/27/20 14:11 MFFg/L0.46 8/27/20SM21-22 6200B1Bromoform
ND 2.0 8/27/20 14:11 MFFg/L1.4 8/27/20SM21-22 6200B1Bromomethane
ND 5.0 8/27/20 14:11 MFFg/L1.9 8/27/20SM21-22 6200B12-Butanone (MEK)
ND 0.50 8/27/20 14:11 MFFg/L0.21 8/27/20SM21-22 6200B1n-Butylbenzene
ND 0.50 8/27/20 14:11 MFFg/L0.16 8/27/20SM21-22 6200B1sec-Butylbenzene
ND 0.50 8/27/20 14:11 MFFg/L0.17 8/27/20SM21-22 6200B1tert-Butylbenzene
ND 0.50 8/27/20 14:11 MFFg/L0.11 8/27/20SM21-22 6200B1Carbon Tetrachloride
ND 0.50 8/27/20 14:11 MFFg/L0.15 8/27/20SM21-22 6200B1Chlorobenzene
ND 50 8/27/20 14:11 MFFg/L11 8/27/20SM21-22 6200B1Ethanol
ND 0.50 8/27/20 14:11 MFFg/L0.21 8/27/20SM21-22 6200B1Chlorodibromomethane
ND 0.50 8/27/20 14:11 MFFg/L0.36 8/27/20SM21-22 6200B1Chloroethane
ND 0.50 8/27/20 14:11 MFFg/L0.17 8/27/20SM21-22 6200B1Chloroform
ND 1.0 8/27/20 14:11 MFFg/L0.45 8/27/20SM21-22 6200B1Chloromethane
ND 0.50 8/27/20 14:11 MFFg/L0.12 8/27/20SM21-22 6200B12-Chlorotoluene
ND 0.50 8/27/20 14:11 MFFg/L0.14 8/27/20SM21-22 6200B14-Chlorotoluene
ND 0.50 8/27/20 14:11 MFFg/L0.19 8/27/20SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 8/27/20 14:11 MFFg/L0.16 8/27/20SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 8/27/20 14:11 MFFg/L0.12 8/27/20SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 8/27/20 14:11 MFFg/L0.13 8/27/20SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 8/27/20 14:11 MFFg/L0.26 8/27/20SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 8/27/20 14:11 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloroethane
1.9 0.50 8/27/20 14:11 MFFg/L0.41 8/27/20SM21-22 6200B11,2-Dichloroethane
ND 0.50 8/27/20 14:11 MFFg/L0.32 8/27/20SM21-22 6200B11,1-Dichloroethylene
ND 0.50 8/27/20 14:11 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 8/27/20 14:11 MFFg/L0.31 8/27/20SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 8/27/20 14:11 MFFg/L0.20 8/27/20SM21-22 6200B11,2-Dichloropropane
ND 0.50 8/27/20 14:11 MFFg/L0.11 8/27/20SM21-22 6200B11,3-Dichloropropane
ND 0.50 8/27/20 14:11 MFFg/L0.20 8/27/20SM21-22 6200B12,2-Dichloropropane
ND 0.50 8/27/20 14:11 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloropropene
ND 0.50 8/27/20 14:11 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 8/27/20 14:11 MFFg/L0.23 8/27/20SM21-22 6200B1trans-1,3-Dichloropropene
1.5 0.50 8/27/20 14:11 MFFg/L0.17 8/27/20SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 8/27/20 14:11 MFFg/L0.13 8/27/20SM21-22 6200B1Ethylbenzene
ND 5.0 8/27/20 14:11 MFFg/L1.5 8/27/20SM21-22 6200B12-Hexanone (MBK)
0.49 0.50 8/27/20 14:11 MFFg/L0.17 8/27/20SM21-22 6200B1JIsopropylbenzene (Cumene)
ND 0.50 8/27/20 14:11 MFFg/L0.20 8/27/20SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
21 0.50 8/27/20 14:11 MFFg/L0.25 8/27/20SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 8/27/20 14:11 MFFg/L0.34 8/27/20SM21-22 6200B1Methylene Chloride
ND 5.0 8/27/20 14:11 MFFg/L1.7 8/27/20SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 24 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-06
Field Sample #: MW-9
Sample Matrix: Ground Water
Sampled: 8/20/2020 15:30
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 8/27/20 14:11 MFFg/L0.31 8/27/20SM21-22 6200B1Naphthalene
ND 0.50 8/27/20 14:11 MFFg/L0.13 8/27/20SM21-22 6200B1n-Propylbenzene
ND 0.50 8/27/20 14:11 MFFg/L0.11 8/27/20SM21-22 6200B1Styrene
ND 0.50 8/27/20 14:11 MFFg/L0.22 8/27/20SM21-22 6200B11,1,2,2-Tetrachloroethane
ND 0.50 8/27/20 14:11 MFFg/L0.18 8/27/20SM21-22 6200B1Tetrachloroethylene
ND 0.50 8/27/20 14:11 MFFg/L0.14 8/27/20SM21-22 6200B1Toluene
ND 1.0 8/27/20 14:11 MFFg/L0.57 8/27/20SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 8/27/20 14:11 MFFg/L0.40 8/27/20SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 8/27/20 14:11 MFFg/L0.20 8/27/20SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 8/27/20 14:11 MFFg/L0.16 8/27/20SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 8/27/20 14:11 MFFg/L0.24 8/27/20SM21-22 6200B1Trichloroethylene
ND 0.50 8/27/20 14:11 MFFg/L0.33 8/27/20SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 8/27/20 14:11 MFFg/L0.25 8/27/20SM21-22 6200B11,2,3-Trichloropropane
0.62 0.50 8/27/20 14:11 MFFg/L0.18 8/27/20SM21-22 6200B11,2,4-Trimethylbenzene
ND 0.50 8/27/20 14:11 MFFg/L0.14 8/27/20SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 8/27/20 14:11 MFFg/L10 8/27/20SM21-22 6200B1Vinyl Acetate
ND 0.50 8/27/20 14:11 MFFg/L0.45 8/27/20SM21-22 6200B1Vinyl Chloride
ND 1.0 8/27/20 14:11 MFFg/L0.30 8/27/20SM21-22 6200B1m+p Xylene
ND 0.50 8/27/20 14:11 MFFg/L0.17 8/27/20SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 103 8/27/20 14:1170-130
Toluene-d8 101 8/27/20 14:1170-130
4-Bromofluorobenzene 99.2 8/27/20 14:1170-130
Page 25 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-06
Field Sample #: MW-9
Sample Matrix: Ground Water
Sampled: 8/20/2020 15:30
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Drinking Water Organics EPA 504.1
ND 0.020 8/28/20 4:20 JMBg/L0.012 8/27/20EPA 504.111,2-Dibromoethane (EDB) (2)
Surrogates % Recovery Recovery Limits Flag/Qual
1,3-Dibromopropane (2)86.5 8/28/20 4:2070-130
Page 26 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-07
Field Sample #: MW-12
Sample Matrix: Ground Water
Sampled: 8/20/2020 13:05
[TOC_2]20H1272-07[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 50 8/27/20 14:38 MFFg/L3.8 8/27/20SM21-22 6200B1Acetone
ND 0.50 8/27/20 14:38 MFFg/L0.18 8/27/20SM21-22 6200B1Benzene
ND 0.50 8/27/20 14:38 MFFg/L0.15 8/27/20SM21-22 6200B1Bromobenzene
ND 0.50 8/27/20 14:38 MFFg/L0.32 8/27/20SM21-22 6200B1Bromochloromethane
ND 0.50 8/27/20 14:38 MFFg/L0.16 8/27/20SM21-22 6200B1Bromodichloromethane
ND 0.50 8/27/20 14:38 MFFg/L0.46 8/27/20SM21-22 6200B1Bromoform
ND 2.0 8/27/20 14:38 MFFg/L1.4 8/27/20SM21-22 6200B1Bromomethane
ND 5.0 8/27/20 14:38 MFFg/L1.9 8/27/20SM21-22 6200B12-Butanone (MEK)
ND 0.50 8/27/20 14:38 MFFg/L0.21 8/27/20SM21-22 6200B1n-Butylbenzene
ND 0.50 8/27/20 14:38 MFFg/L0.16 8/27/20SM21-22 6200B1sec-Butylbenzene
ND 0.50 8/27/20 14:38 MFFg/L0.17 8/27/20SM21-22 6200B1tert-Butylbenzene
ND 0.50 8/27/20 14:38 MFFg/L0.11 8/27/20SM21-22 6200B1Carbon Tetrachloride
ND 0.50 8/27/20 14:38 MFFg/L0.15 8/27/20SM21-22 6200B1Chlorobenzene
ND 50 8/27/20 14:38 MFFg/L11 8/27/20SM21-22 6200B1Ethanol
ND 0.50 8/27/20 14:38 MFFg/L0.21 8/27/20SM21-22 6200B1Chlorodibromomethane
ND 0.50 8/27/20 14:38 MFFg/L0.36 8/27/20SM21-22 6200B1Chloroethane
2.6 0.50 8/27/20 14:38 MFFg/L0.17 8/27/20SM21-22 6200B1Chloroform
ND 1.0 8/27/20 14:38 MFFg/L0.45 8/27/20SM21-22 6200B1Chloromethane
ND 0.50 8/27/20 14:38 MFFg/L0.12 8/27/20SM21-22 6200B12-Chlorotoluene
ND 0.50 8/27/20 14:38 MFFg/L0.14 8/27/20SM21-22 6200B14-Chlorotoluene
ND 0.50 8/27/20 14:38 MFFg/L0.19 8/27/20SM21-22 6200B11,2-Dibromoethane (EDB)
ND 0.50 8/27/20 14:38 MFFg/L0.16 8/27/20SM21-22 6200B11,2-Dichlorobenzene
ND 0.50 8/27/20 14:38 MFFg/L0.12 8/27/20SM21-22 6200B11,3-Dichlorobenzene
ND 0.50 8/27/20 14:38 MFFg/L0.13 8/27/20SM21-22 6200B11,4-Dichlorobenzene
ND 0.50 8/27/20 14:38 MFFg/L0.26 8/27/20SM21-22 6200B1Dichlorodifluoromethane (Freon 12)
ND 0.50 8/27/20 14:38 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloroethane
ND 0.50 8/27/20 14:38 MFFg/L0.41 8/27/20SM21-22 6200B11,2-Dichloroethane
ND 0.50 8/27/20 14:38 MFFg/L0.32 8/27/20SM21-22 6200B11,1-Dichloroethylene
ND 0.50 8/27/20 14:38 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,2-Dichloroethylene
ND 0.50 8/27/20 14:38 MFFg/L0.31 8/27/20SM21-22 6200B1trans-1,2-Dichloroethylene
ND 0.50 8/27/20 14:38 MFFg/L0.20 8/27/20SM21-22 6200B11,2-Dichloropropane
ND 0.50 8/27/20 14:38 MFFg/L0.11 8/27/20SM21-22 6200B11,3-Dichloropropane
ND 0.50 8/27/20 14:38 MFFg/L0.20 8/27/20SM21-22 6200B12,2-Dichloropropane
ND 0.50 8/27/20 14:38 MFFg/L0.16 8/27/20SM21-22 6200B11,1-Dichloropropene
ND 0.50 8/27/20 14:38 MFFg/L0.13 8/27/20SM21-22 6200B1cis-1,3-Dichloropropene
ND 0.50 8/27/20 14:38 MFFg/L0.23 8/27/20SM21-22 6200B1trans-1,3-Dichloropropene
0.84 0.50 8/27/20 14:38 MFFg/L0.17 8/27/20SM21-22 6200B1Diisopropyl Ether (DIPE)
ND 0.50 8/27/20 14:38 MFFg/L0.13 8/27/20SM21-22 6200B1Ethylbenzene
ND 5.0 8/27/20 14:38 MFFg/L1.5 8/27/20SM21-22 6200B12-Hexanone (MBK)
ND 0.50 8/27/20 14:38 MFFg/L0.17 8/27/20SM21-22 6200B1Isopropylbenzene (Cumene)
ND 0.50 8/27/20 14:38 MFFg/L0.20 8/27/20SM21-22 6200B1p-Isopropyltoluene (p-Cymene)
5.6 0.50 8/27/20 14:38 MFFg/L0.25 8/27/20SM21-22 6200B1Methyl tert-Butyl Ether (MTBE)
ND 5.0 8/27/20 14:38 MFFg/L0.34 8/27/20SM21-22 6200B1Methylene Chloride
ND 5.0 8/27/20 14:38 MFFg/L1.7 8/27/20SM21-22 6200B14-Methyl-2-pentanone (MIBK)
Page 27 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-07
Field Sample #: MW-12
Sample Matrix: Ground Water
Sampled: 8/20/2020 13:05
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Volatile Organic Compounds by GC/MS
ND 0.50 8/27/20 14:38 MFFg/L0.31 8/27/20SM21-22 6200B1Naphthalene
ND 0.50 8/27/20 14:38 MFFg/L0.13 8/27/20SM21-22 6200B1n-Propylbenzene
ND 0.50 8/27/20 14:38 MFFg/L0.11 8/27/20SM21-22 6200B1Styrene
ND 0.50 8/27/20 14:38 MFFg/L0.22 8/27/20SM21-22 6200B11,1,2,2-Tetrachloroethane
2.4 0.50 8/27/20 14:38 MFFg/L0.18 8/27/20SM21-22 6200B1Tetrachloroethylene
ND 0.50 8/27/20 14:38 MFFg/L0.14 8/27/20SM21-22 6200B1Toluene
ND 1.0 8/27/20 14:38 MFFg/L0.57 8/27/20SM21-22 6200B11,2,3-Trichlorobenzene
ND 0.50 8/27/20 14:38 MFFg/L0.40 8/27/20SM21-22 6200B11,2,4-Trichlorobenzene
ND 0.50 8/27/20 14:38 MFFg/L0.20 8/27/20SM21-22 6200B11,1,1-Trichloroethane
ND 0.50 8/27/20 14:38 MFFg/L0.16 8/27/20SM21-22 6200B11,1,2-Trichloroethane
ND 0.50 8/27/20 14:38 MFFg/L0.24 8/27/20SM21-22 6200B1Trichloroethylene
ND 0.50 8/27/20 14:38 MFFg/L0.33 8/27/20SM21-22 6200B1Trichlorofluoromethane (Freon 11)
ND 0.50 8/27/20 14:38 MFFg/L0.25 8/27/20SM21-22 6200B11,2,3-Trichloropropane
0.54 0.50 8/27/20 14:38 MFFg/L0.18 8/27/20SM21-22 6200B11,2,4-Trimethylbenzene
1.6 0.50 8/27/20 14:38 MFFg/L0.14 8/27/20SM21-22 6200B11,3,5-Trimethylbenzene
ND 20 8/27/20 14:38 MFFg/L10 8/27/20SM21-22 6200B1Vinyl Acetate
ND 0.50 8/27/20 14:38 MFFg/L0.45 8/27/20SM21-22 6200B1Vinyl Chloride
ND 1.0 8/27/20 14:38 MFFg/L0.30 8/27/20SM21-22 6200B1m+p Xylene
ND 0.50 8/27/20 14:38 MFFg/L0.17 8/27/20SM21-22 6200B1o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 104 8/27/20 14:3870-130
Toluene-d8 101 8/27/20 14:3870-130
4-Bromofluorobenzene 99.4 8/27/20 14:3870-130
Page 28 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-07
Field Sample #: MW-12
Sample Matrix: Ground Water
Sampled: 8/20/2020 13:05
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Drinking Water Organics EPA 504.1
0.077 0.020 8/28/20 4:44 JMBg/L0.012 8/27/20EPA 504.111,2-Dibromoethane (EDB) (2)
Surrogates % Recovery Recovery Limits Flag/Qual
1,3-Dibromopropane (2)84.6 8/28/20 4:4470-130
Page 29 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-08
Field Sample #: MW-14
Sample Matrix: Ground Water
Sampled: 8/20/2020 11:40
[TOC_2]20H1272-08[TOC]
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: PR-08, RL-11 Volatile Organic Compounds by GC/MS
4800 12000 8/27/20 15:57 MFFg/L950 8/27/20SM21-22 6200B250JAcetone
12000 120 8/27/20 15:57 MFFg/L45 8/27/20SM21-22 6200B250Benzene
ND 120 8/27/20 15:57 MFFg/L38 8/27/20SM21-22 6200B250Bromobenzene
ND 120 8/27/20 15:57 MFFg/L80 8/27/20SM21-22 6200B250Bromochloromethane
ND 120 8/27/20 15:57 MFFg/L40 8/27/20SM21-22 6200B250Bromodichloromethane
ND 120 8/27/20 15:57 MFFg/L120 8/27/20SM21-22 6200B250Bromoform
ND 500 8/27/20 15:57 MFFg/L340 8/27/20SM21-22 6200B250Bromomethane
1700 1200 8/27/20 15:57 MFFg/L480 8/27/20SM21-22 6200B2502-Butanone (MEK)
110 120 8/27/20 15:57 MFFg/L52 8/27/20SM21-22 6200B250Jn-Butylbenzene
ND 120 8/27/20 15:57 MFFg/L40 8/27/20SM21-22 6200B250sec-Butylbenzene
ND 120 8/27/20 15:57 MFFg/L42 8/27/20SM21-22 6200B250tert-Butylbenzene
ND 120 8/27/20 15:57 MFFg/L28 8/27/20SM21-22 6200B250Carbon Tetrachloride
ND 120 8/27/20 15:57 MFFg/L38 8/27/20SM21-22 6200B250Chlorobenzene
ND 12000 8/27/20 15:57 MFFg/L2600 8/27/20SM21-22 6200B250Ethanol
ND 120 8/27/20 15:57 MFFg/L52 8/27/20SM21-22 6200B250Chlorodibromomethane
ND 120 8/27/20 15:57 MFFg/L90 8/27/20SM21-22 6200B250Chloroethane
ND 120 8/27/20 15:57 MFFg/L42 8/27/20SM21-22 6200B250Chloroform
ND 250 8/27/20 15:57 MFFg/L110 8/27/20SM21-22 6200B250Chloromethane
ND 120 8/27/20 15:57 MFFg/L30 8/27/20SM21-22 6200B2502-Chlorotoluene
ND 120 8/27/20 15:57 MFFg/L35 8/27/20SM21-22 6200B2504-Chlorotoluene
85 120 8/27/20 15:57 MFFg/L48 8/27/20SM21-22 6200B250J1,2-Dibromoethane (EDB)
ND 120 8/27/20 15:57 MFFg/L40 8/27/20SM21-22 6200B2501,2-Dichlorobenzene
ND 120 8/27/20 15:57 MFFg/L30 8/27/20SM21-22 6200B2501,3-Dichlorobenzene
ND 120 8/27/20 15:57 MFFg/L32 8/27/20SM21-22 6200B2501,4-Dichlorobenzene
ND 120 8/27/20 15:57 MFFg/L65 8/27/20SM21-22 6200B250Dichlorodifluoromethane (Freon 12)
ND 120 8/27/20 15:57 MFFg/L40 8/27/20SM21-22 6200B2501,1-Dichloroethane
ND 120 8/27/20 15:57 MFFg/L100 8/27/20SM21-22 6200B2501,2-Dichloroethane
ND 120 8/27/20 15:57 MFFg/L80 8/27/20SM21-22 6200B2501,1-Dichloroethylene
ND 120 8/27/20 15:57 MFFg/L32 8/27/20SM21-22 6200B250cis-1,2-Dichloroethylene
ND 120 8/27/20 15:57 MFFg/L78 8/27/20SM21-22 6200B250trans-1,2-Dichloroethylene
ND 120 8/27/20 15:57 MFFg/L50 8/27/20SM21-22 6200B2501,2-Dichloropropane
ND 120 8/27/20 15:57 MFFg/L28 8/27/20SM21-22 6200B2501,3-Dichloropropane
ND 120 8/27/20 15:57 MFFg/L50 8/27/20SM21-22 6200B2502,2-Dichloropropane
ND 120 8/27/20 15:57 MFFg/L40 8/27/20SM21-22 6200B2501,1-Dichloropropene
ND 120 8/27/20 15:57 MFFg/L32 8/27/20SM21-22 6200B250cis-1,3-Dichloropropene
ND 120 8/27/20 15:57 MFFg/L58 8/27/20SM21-22 6200B250trans-1,3-Dichloropropene
180 120 8/27/20 15:57 MFFg/L42 8/27/20SM21-22 6200B250Diisopropyl Ether (DIPE)
2600 120 8/27/20 15:57 MFFg/L32 8/27/20SM21-22 6200B250Ethylbenzene
840 1200 8/27/20 15:57 MFFg/L380 8/27/20SM21-22 6200B250J2-Hexanone (MBK)
180 120 8/27/20 15:57 MFFg/L42 8/27/20SM21-22 6200B250Isopropylbenzene (Cumene)
ND 120 8/27/20 15:57 MFFg/L50 8/27/20SM21-22 6200B250p-Isopropyltoluene (p-Cymene)
2600 120 8/27/20 15:57 MFFg/L62 8/27/20SM21-22 6200B250Methyl tert-Butyl Ether (MTBE)
ND 1200 8/27/20 15:57 MFFg/L85 8/27/20SM21-22 6200B250Methylene Chloride
ND 1200 8/27/20 15:57 MFFg/L420 8/27/20SM21-22 6200B2504-Methyl-2-pentanone (MIBK)
Page 30 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-08
Field Sample #: MW-14
Sample Matrix: Ground Water
Sampled: 8/20/2020 11:40
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Sample Flags: PR-08, RL-11 Volatile Organic Compounds by GC/MS
1500 120 8/27/20 15:57 MFFg/L78 8/27/20SM21-22 6200B250Naphthalene
430 120 8/27/20 15:57 MFFg/L32 8/27/20SM21-22 6200B250n-Propylbenzene
ND 120 8/27/20 15:57 MFFg/L28 8/27/20SM21-22 6200B250Styrene
ND 120 8/27/20 15:57 MFFg/L55 8/27/20SM21-22 6200B2501,1,2,2-Tetrachloroethane
ND 120 8/27/20 15:57 MFFg/L45 8/27/20SM21-22 6200B250Tetrachloroethylene
19000 120 8/27/20 15:57 MFFg/L35 8/27/20SM21-22 6200B250Toluene
ND 250 8/27/20 15:57 MFFg/L140 8/27/20SM21-22 6200B2501,2,3-Trichlorobenzene
ND 120 8/27/20 15:57 MFFg/L100 8/27/20SM21-22 6200B2501,2,4-Trichlorobenzene
ND 120 8/27/20 15:57 MFFg/L50 8/27/20SM21-22 6200B2501,1,1-Trichloroethane
ND 120 8/27/20 15:57 MFFg/L40 8/27/20SM21-22 6200B2501,1,2-Trichloroethane
ND 120 8/27/20 15:57 MFFg/L60 8/27/20SM21-22 6200B250Trichloroethylene
ND 120 8/27/20 15:57 MFFg/L82 8/27/20SM21-22 6200B250Trichlorofluoromethane (Freon 11)
ND 120 8/27/20 15:57 MFFg/L62 8/27/20SM21-22 6200B2501,2,3-Trichloropropane
2300 120 8/27/20 15:57 MFFg/L45 8/27/20SM21-22 6200B2501,2,4-Trimethylbenzene
550 120 8/27/20 15:57 MFFg/L35 8/27/20SM21-22 6200B2501,3,5-Trimethylbenzene
ND 5000 8/27/20 15:57 MFFg/L2500 8/27/20SM21-22 6200B250Vinyl Acetate
ND 120 8/27/20 15:57 MFFg/L110 8/27/20SM21-22 6200B250Vinyl Chloride
8500 250 8/27/20 15:57 MFFg/L75 8/27/20SM21-22 6200B250m+p Xylene
4700 120 8/27/20 15:57 MFFg/L42 8/27/20SM21-22 6200B250o-Xylene
Surrogates % Recovery Recovery Limits Flag/Qual
1,2-Dichloroethane-d4 100 8/27/20 15:5770-130
Toluene-d8 99.8 8/27/20 15:5770-130
4-Bromofluorobenzene 98.7 8/27/20 15:5770-130
Page 31 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Date Received: 8/25/2020
Work Order: 20H1272Sample Description:Project Location: 719 E. Main Street, Pilot Mnt, NC
Sample ID: 20H1272-08
Field Sample #: MW-14
Sample Matrix: Ground Water
Sampled: 8/20/2020 11:40
AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
DL Units
Date
PreparedMethod
Drinking Water Organics EPA 504.1
130 10 8/28/20 9:08 JMBg/L6.0 8/27/20EPA 504.15001,2-Dibromoethane (EDB) (2)
Surrogates % Recovery Recovery Limits Flag/Qual
1,3-Dibromopropane (2)96.2 8/28/20 5:0870-130
Page 32 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: EPA 504 water-EPA 504.1
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B265249 08/27/2035.0 35.020H1272-02 [MW-2]
B265249 08/27/2035.2 35.020H1272-03 [MW-3]
B265249 08/27/2035.5 35.020H1272-04 [MW-6R]
B265249 08/27/2035.7 35.020H1272-05 [MW-7]
B265249 08/27/2035.1 35.020H1272-06 [MW-9]
B265249 08/27/2035.1 35.020H1272-07 [MW-12]
B265249 08/27/2035.2 35.020H1272-08 [MW-14]
Prep Method: SW-846 5030B-SM21-22 6200B
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B265255 08/27/205 5.0020H1272-01 [FB]
B265255 08/27/205 5.0020H1272-02 [MW-2]
B265255 08/27/205 5.0020H1272-03 [MW-3]
B265255 08/27/205 5.0020H1272-05 [MW-7]
B265255 08/27/205 5.0020H1272-06 [MW-9]
B265255 08/27/205 5.0020H1272-07 [MW-12]
B265255 08/27/200.02 5.0020H1272-08 [MW-14]
Prep Method: SW-846 5030B-SM21-22 6200B
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B265315 08/28/200.025 5.0020H1272-04 [MW-6R]
Prep Method: SW-846 5030B-SM21-22 6200B
Lab Number [Field ID]Batch DateInitial [mL]Final [mL]
B265432 08/31/200.05 5.0020H1272-05RE1 [MW-7]
[TOC_1]Sample Preparation Information[TOC]
Page 33 of 61
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 B265255 - SW-846 5030B
[TOC_3]B265255[TOC]
Blank (B265255-BLK1) Prepared & Analyzed: 08/27/20
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/L0.50ND
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 34 of 61
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 B265255 - SW-846 5030B
Blank (B265255-BLK1) Prepared & Analyzed: 08/27/20
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 10125.4
g/L 25.0 70-130Surrogate: Toluene-d8 10025.1
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10025.1
LCS (B265255-BS1) Prepared & Analyzed: 08/27/20
Acetone g/L50 100 70-13096.096.0
Benzene g/L0.50 10.0 70-13099.39.93
Bromobenzene g/L0.50 10.0 70-13096.99.69
Bromochloromethane g/L0.50 10.0 70-13097.39.73
Bromodichloromethane g/L0.50 10.0 70-13010110.1
Bromoform g/L0.50 10.0 70-13095.89.58
Bromomethane g/L2.0 10.0 60-14012912.9
2-Butanone (MEK)g/L5.0 100 70-13089.489.4
n-Butylbenzene g/L0.50 10.0 70-13094.19.41
sec-Butylbenzene g/L0.50 10.0 70-13097.89.78
tert-Butylbenzene g/L0.50 10.0 70-13095.59.55
Carbon Tetrachloride g/L0.50 10.0 70-13010410.4
Chlorobenzene g/L0.50 10.0 70-13010310.3
Ethanol g/L50 100 70-13095.595.5
Chlorodibromomethane g/L0.50 10.0 70-13010210.2
Chloroethane g/L0.50 10.0 60-14011411.4
Chloroform g/L0.50 10.0 70-13010210.2
Chloromethane g/L0.60 10.0 L-0260-140256*25.6
2-Chlorotoluene g/L0.50 10.0 70-13098.79.87
4-Chlorotoluene g/L0.50 10.0 70-13099.39.93
1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13098.29.82
1,2-Dichlorobenzene g/L0.50 10.0 70-13010010.0
1,3-Dichlorobenzene g/L0.50 10.0 70-13099.99.99
1,4-Dichlorobenzene g/L0.50 10.0 70-13095.79.57
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14096.59.65
1,1-Dichloroethane g/L0.50 10.0 70-13097.69.76
1,2-Dichloroethane g/L0.50 10.0 70-13010110.1
1,1-Dichloroethylene g/L0.50 10.0 70-13010710.7
cis-1,2-Dichloroethylene g/L0.50 10.0 70-13010110.1
trans-1,2-Dichloroethylene g/L0.50 10.0 70-13010110.1
1,2-Dichloropropane g/L0.50 10.0 70-13096.69.66
1,3-Dichloropropane g/L0.50 10.0 70-13096.39.63
2,2-Dichloropropane g/L0.50 10.0 70-13098.99.89
1,1-Dichloropropene g/L0.50 10.0 70-13010210.2
cis-1,3-Dichloropropene g/L0.50 10.0 70-13010010.0
trans-1,3-Dichloropropene g/L0.50 10.0 70-13092.69.26
Page 35 of 61
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 B265255 - SW-846 5030B
LCS (B265255-BS1) Prepared & Analyzed: 08/27/20
Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13094.89.48
Ethylbenzene g/L0.50 10.0 70-13099.79.97
2-Hexanone (MBK)g/L5.0 100 70-13088.688.6
Isopropylbenzene (Cumene)g/L0.50 10.0 70-13010310.3
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13093.29.32
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13096.49.64
Methylene Chloride g/L5.0 10.0 70-13010810.8
4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-13091.291.2
Naphthalene g/L0.50 10.0 70-13081.08.10
n-Propylbenzene g/L0.50 10.0 70-13010310.3
Styrene g/L0.50 10.0 70-13010210.2
1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13010110.1
Tetrachloroethylene g/L0.50 10.0 70-13011211.2
Toluene g/L0.50 10.0 70-13010210.2
1,2,3-Trichlorobenzene g/L1.0 10.0 70-13090.49.04
1,2,4-Trichlorobenzene g/L0.50 10.0 70-13091.79.17
1,1,1-Trichloroethane g/L0.50 10.0 70-13010410.4
1,1,2-Trichloroethane g/L0.50 10.0 70-13010310.3
Trichloroethylene g/L0.50 10.0 70-13010410.4
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 70-13011111.1
1,2,3-Trichloropropane g/L0.50 10.0 70-13088.88.88
1,2,4-Trimethylbenzene g/L0.50 10.0 70-13093.29.32
1,3,5-Trimethylbenzene g/L0.50 10.0 70-13098.79.87
Vinyl Acetate g/L20 100 70-13097.297.2
Vinyl Chloride g/L0.50 10.0 60-14010810.8
m+p Xylene g/L1.0 20.0 70-13010120.2
o-Xylene g/L0.50 10.0 70-13010110.1
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10225.5
g/L 25.0 70-130Surrogate: Toluene-d8 10526.2
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10325.8
LCS Dup (B265255-BSD1) Prepared & Analyzed: 08/27/20
Acetone g/L50 100 2570-13097.1 1.1197.1
Benzene g/L0.50 10.0 2570-13095.5 3.909.55
Bromobenzene g/L0.50 10.0 2570-13091.4 5.849.14
Bromochloromethane g/L0.50 10.0 2570-13094.8 2.609.48
Bromodichloromethane g/L0.50 10.0 2570-13097.9 3.519.79
Bromoform g/L0.50 10.0 2570-13088.1 8.378.81
Bromomethane g/L2.0 10.0 2560-140122 5.9012.2
2-Butanone (MEK)g/L5.0 100 2570-13092.2 3.0992.2
n-Butylbenzene g/L0.50 10.0 2570-13092.0 2.269.20
sec-Butylbenzene g/L0.50 10.0 2570-13094.9 3.019.49
tert-Butylbenzene g/L0.50 10.0 2570-13093.8 1.809.38
Carbon Tetrachloride g/L0.50 10.0 2570-13096.8 7.369.68
Chlorobenzene g/L0.50 10.0 2570-130100 2.5610.0
Ethanol g/L50 100 2570-130105 9.36105
Chlorodibromomethane g/L0.50 10.0 2570-13098.1 3.809.81
Chloroethane g/L0.50 10.0 2560-140109 4.2110.9
Chloroform g/L0.50 10.0 2570-13098.3 3.509.83
Chloromethane g/L0.60 10.0 25 L-0260-140234 9.19*23.4
2-Chlorotoluene g/L0.50 10.0 2570-13093.5 5.419.35
4-Chlorotoluene g/L0.50 10.0 2570-13095.8 3.599.58
Page 36 of 61
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 B265255 - SW-846 5030B
LCS Dup (B265255-BSD1) Prepared & Analyzed: 08/27/20
1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-13097.6 0.6139.76
1,2-Dichlorobenzene g/L0.50 10.0 2570-13098.3 1.719.83
1,3-Dichlorobenzene g/L0.50 10.0 2570-13097.6 2.339.76
1,4-Dichlorobenzene g/L0.50 10.0 2570-13095.2 0.5249.52
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-14089.2 7.868.92
1,1-Dichloroethane g/L0.50 10.0 2570-13093.5 4.299.35
1,2-Dichloroethane g/L0.50 10.0 2570-13097.6 3.529.76
1,1-Dichloroethylene g/L0.50 10.0 2570-13098.9 7.879.89
cis-1,2-Dichloroethylene g/L0.50 10.0 2570-13097.7 3.329.77
trans-1,2-Dichloroethylene g/L0.50 10.0 2570-13095.2 6.319.52
1,2-Dichloropropane g/L0.50 10.0 2570-13093.6 3.159.36
1,3-Dichloropropane g/L0.50 10.0 2570-13095.3 1.049.53
2,2-Dichloropropane g/L0.50 10.0 2570-13094.1 4.979.41
1,1-Dichloropropene g/L0.50 10.0 2570-13096.9 4.939.69
cis-1,3-Dichloropropene g/L0.50 10.0 2570-13096.2 3.979.62
trans-1,3-Dichloropropene g/L0.50 10.0 2570-13092.4 0.2169.24
Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-13094.5 0.3179.45
Ethylbenzene g/L0.50 10.0 2570-13094.4 5.469.44
2-Hexanone (MBK)g/L5.0 100 2570-13090.8 2.4990.8
Isopropylbenzene (Cumene)g/L0.50 10.0 2570-13098.1 4.589.81
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-13092.1 1.199.21
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-13095.1 1.369.51
Methylene Chloride g/L5.0 10.0 2570-130102 5.1310.2
4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-13091.4 0.25291.4
Naphthalene g/L0.50 10.0 2570-13084.4 4.118.44
n-Propylbenzene g/L0.50 10.0 2570-13096.5 6.139.65
Styrene g/L0.50 10.0 2570-13095.7 5.989.57
1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-13098.7 2.119.87
Tetrachloroethylene g/L0.50 10.0 2570-130102 9.3710.2
Toluene g/L0.50 10.0 2570-13095.3 6.309.53
1,2,3-Trichlorobenzene g/L1.0 10.0 2570-13091.4 1.109.14
1,2,4-Trichlorobenzene g/L0.50 10.0 2570-13091.8 0.1099.18
1,1,1-Trichloroethane g/L0.50 10.0 2570-13097.0 7.069.70
1,1,2-Trichloroethane g/L0.50 10.0 2570-13096.8 6.599.68
Trichloroethylene g/L0.50 10.0 2570-13099.7 4.419.97
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-130103 7.4510.3
1,2,3-Trichloropropane g/L0.50 10.0 2570-13096.7 8.529.67
1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13093.0 0.2159.30
1,3,5-Trimethylbenzene g/L0.50 10.0 2570-13092.9 6.059.29
Vinyl Acetate g/L20 100 2570-13098.0 0.77898.0
Vinyl Chloride g/L0.50 10.0 2560-140101 7.1710.1
m+p Xylene g/L1.0 20.0 2570-13095.8 5.4819.2
o-Xylene g/L0.50 10.0 2570-13098.5 2.419.85
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10225.4
g/L 25.0 70-130Surrogate: Toluene-d8 10325.7
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10225.5
Page 37 of 61
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 B265315 - SW-846 5030B
[TOC_3]B265315[TOC]
Blank (B265315-BLK1) Prepared & Analyzed: 08/28/20
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/L0.50ND
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
Page 38 of 61
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 B265315 - SW-846 5030B
Blank (B265315-BLK1) Prepared & Analyzed: 08/28/20
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 10526.2
g/L 25.0 70-130Surrogate: Toluene-d8 10325.8
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10426.1
LCS (B265315-BS1) Prepared & Analyzed: 08/28/20
Acetone g/L50 200 70-130112224
Benzene g/L0.50 20.0 70-13010220.3
Bromobenzene g/L0.50 20.0 70-13010320.5
Bromochloromethane g/L0.50 20.0 70-13010220.4
Bromodichloromethane g/L0.50 20.0 70-13010320.7
Bromoform g/L0.50 20.0 70-13010320.7
Bromomethane g/L2.0 20.0 60-14067.213.4
2-Butanone (MEK)g/L5.0 200 70-13093.6187
n-Butylbenzene g/L0.50 20.0 70-13010220.5
sec-Butylbenzene g/L0.50 20.0 70-13010621.3
tert-Butylbenzene g/L0.50 20.0 70-13010320.5
Carbon Tetrachloride g/L0.50 20.0 70-13010521.0
Chlorobenzene g/L0.50 20.0 70-13011022.0
Ethanol g/L50 200 70-13093.6187
Chlorodibromomethane g/L0.50 20.0 70-13010320.5
Chloroethane g/L0.50 20.0 60-14011021.9
Chloroform g/L0.50 20.0 70-13010220.5
Chloromethane g/L0.60 20.0 60-14011823.6
2-Chlorotoluene g/L0.50 20.0 70-13010521.1
4-Chlorotoluene g/L0.50 20.0 70-13010521.0
1,2-Dibromoethane (EDB)g/L0.50 20.0 70-13010420.8
1,2-Dichlorobenzene g/L0.50 20.0 70-13010521.1
1,3-Dichlorobenzene g/L0.50 20.0 70-13010821.5
1,4-Dichlorobenzene g/L0.50 20.0 70-13010220.3
Dichlorodifluoromethane (Freon 12)g/L0.50 20.0 60-14010420.9
1,1-Dichloroethane g/L0.50 20.0 70-13010220.3
1,2-Dichloroethane g/L0.50 20.0 70-13010220.5
1,1-Dichloroethylene g/L0.50 20.0 70-13011322.6
cis-1,2-Dichloroethylene g/L0.50 20.0 70-13010220.5
trans-1,2-Dichloroethylene g/L0.50 20.0 70-13010420.7
1,2-Dichloropropane g/L0.50 20.0 70-13010320.5
1,3-Dichloropropane g/L0.50 20.0 70-13010020.0
2,2-Dichloropropane g/L0.50 20.0 70-13097.019.4
1,1-Dichloropropene g/L0.50 20.0 70-13096.919.4
cis-1,3-Dichloropropene g/L0.50 20.0 70-13099.219.8
trans-1,3-Dichloropropene g/L0.50 20.0 70-13099.519.9
Page 39 of 61
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 B265315 - SW-846 5030B
LCS (B265315-BS1) Prepared & Analyzed: 08/28/20
Diisopropyl Ether (DIPE)g/L0.50 20.0 70-13099.820.0
Ethylbenzene g/L0.50 20.0 70-13010521.1
2-Hexanone (MBK)g/L5.0 200 70-13091.2182
Isopropylbenzene (Cumene)g/L0.50 20.0 70-13011021.9
p-Isopropyltoluene (p-Cymene)g/L0.50 20.0 70-13010521.0
Methyl tert-Butyl Ether (MTBE)g/L0.50 20.0 70-13010120.3
Methylene Chloride g/L5.0 20.0 70-13010721.5
4-Methyl-2-pentanone (MIBK)g/L5.0 200 70-13090.5181
Naphthalene g/L0.50 20.0 70-13092.618.5
n-Propylbenzene g/L0.50 20.0 70-13010821.6
Styrene g/L0.50 20.0 70-13010821.6
1,1,2,2-Tetrachloroethane g/L0.50 20.0 70-13010521.0
Tetrachloroethylene g/L0.50 20.0 70-13011122.3
Toluene g/L0.50 20.0 70-13010521.1
1,2,3-Trichlorobenzene g/L1.0 20.0 70-13097.619.5
1,2,4-Trichlorobenzene g/L0.50 20.0 70-13010220.4
1,1,1-Trichloroethane g/L0.50 20.0 70-13010420.7
1,1,2-Trichloroethane g/L0.50 20.0 70-13010721.4
Trichloroethylene g/L0.50 20.0 70-13010621.2
Trichlorofluoromethane (Freon 11)g/L0.50 20.0 70-13010521.0
1,2,3-Trichloropropane g/L0.50 20.0 70-13094.418.9
1,2,4-Trimethylbenzene g/L0.50 20.0 70-13098.419.7
1,3,5-Trimethylbenzene g/L0.50 20.0 70-13010621.2
Vinyl Acetate g/L20 200 70-13086.9174
Vinyl Chloride g/L0.50 20.0 60-14010020.1
m+p Xylene g/L1.0 40.0 70-13010642.6
o-Xylene g/L0.50 20.0 70-13010821.6
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10125.4
g/L 25.0 70-130Surrogate: Toluene-d8 10426.1
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10526.4
LCS Dup (B265315-BSD1) Prepared & Analyzed: 08/28/20
Acetone g/L50 200 25 L-0770-130140 22.2*280
Benzene g/L0.50 20.0 2570-130102 0.68720.5
Bromobenzene g/L0.50 20.0 2570-130101 1.7720.2
Bromochloromethane g/L0.50 20.0 2570-130106 3.3721.1
Bromodichloromethane g/L0.50 20.0 2570-130104 0.43520.8
Bromoform g/L0.50 20.0 2570-130104 0.33820.7
Bromomethane g/L2.0 20.0 2560-14074.4 10.214.9
2-Butanone (MEK)g/L5.0 200 2570-130104 10.3208
n-Butylbenzene g/L0.50 20.0 2570-130102 0.0020.5
sec-Butylbenzene g/L0.50 20.0 2570-130107 0.74921.4
tert-Butylbenzene g/L0.50 20.0 2570-130104 1.0220.8
Carbon Tetrachloride g/L0.50 20.0 2570-130104 0.47720.9
Chlorobenzene g/L0.50 20.0 2570-130107 2.3021.4
Ethanol g/L50 200 2570-130100 6.88201
Chlorodibromomethane g/L0.50 20.0 2570-130100 2.4620.0
Chloroethane g/L0.50 20.0 2560-140109 0.77921.7
Chloroform g/L0.50 20.0 2570-130102 0.44020.4
Chloromethane g/L0.60 20.0 2560-140118 0.38123.6
2-Chlorotoluene g/L0.50 20.0 2570-130102 2.7420.5
4-Chlorotoluene g/L0.50 20.0 2570-130105 0.38121.1
Page 40 of 61
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 B265315 - SW-846 5030B
LCS Dup (B265315-BSD1) Prepared & Analyzed: 08/28/20
1,2-Dibromoethane (EDB)g/L0.50 20.0 2570-130105 0.86021.0
1,2-Dichlorobenzene g/L0.50 20.0 2570-130108 2.4821.6
1,3-Dichlorobenzene g/L0.50 20.0 2570-130110 2.1122.0
1,4-Dichlorobenzene g/L0.50 20.0 2570-130105 2.9620.9
Dichlorodifluoromethane (Freon 12)g/L0.50 20.0 2560-140104 0.38420.8
1,1-Dichloroethane g/L0.50 20.0 2570-130101 0.14820.3
1,2-Dichloroethane g/L0.50 20.0 2570-130103 0.24420.5
1,1-Dichloroethylene g/L0.50 20.0 2570-130113 0.39822.7
cis-1,2-Dichloroethylene g/L0.50 20.0 2570-130103 0.68120.6
trans-1,2-Dichloroethylene g/L0.50 20.0 2570-130104 0.14520.8
1,2-Dichloropropane g/L0.50 20.0 2570-130102 0.93020.3
1,3-Dichloropropane g/L0.50 20.0 2570-130101 0.69720.2
2,2-Dichloropropane g/L0.50 20.0 2570-13093.8 3.2518.8
1,1-Dichloropropene g/L0.50 20.0 2570-13095.2 1.7719.0
cis-1,3-Dichloropropene g/L0.50 20.0 2570-13098.0 1.2719.6
trans-1,3-Dichloropropene g/L0.50 20.0 2570-130101 1.2520.2
Diisopropyl Ether (DIPE)g/L0.50 20.0 2570-130100 0.35020.0
Ethylbenzene g/L0.50 20.0 2570-130104 1.6720.7
2-Hexanone (MBK)g/L5.0 200 2570-13097.7 6.90195
Isopropylbenzene (Cumene)g/L0.50 20.0 2570-130108 1.7521.5
p-Isopropyltoluene (p-Cymene)g/L0.50 20.0 2570-130105 0.14321.0
Methyl tert-Butyl Ether (MTBE)g/L0.50 20.0 2570-130103 1.9520.7
Methylene Chloride g/L5.0 20.0 2570-130106 0.93621.3
4-Methyl-2-pentanone (MIBK)g/L5.0 200 2570-13093.7 3.47187
Naphthalene g/L0.50 20.0 2570-13099.3 7.0419.9
n-Propylbenzene g/L0.50 20.0 2570-130106 2.1621.1
Styrene g/L0.50 20.0 2570-130106 2.1021.2
1,1,2,2-Tetrachloroethane g/L0.50 20.0 2570-130105 0.42821.1
Tetrachloroethylene g/L0.50 20.0 2570-130112 0.35822.4
Toluene g/L0.50 20.0 2570-130103 2.0120.7
1,2,3-Trichlorobenzene g/L1.0 20.0 2570-130102 4.4120.4
1,2,4-Trichlorobenzene g/L0.50 20.0 2570-130107 4.1221.3
1,1,1-Trichloroethane g/L0.50 20.0 2570-130103 1.0220.5
1,1,2-Trichloroethane g/L0.50 20.0 2570-130107 0.42121.4
Trichloroethylene g/L0.50 20.0 2570-130103 2.3420.7
Trichlorofluoromethane (Freon 11)g/L0.50 20.0 2570-130103 2.1120.6
1,2,3-Trichloropropane g/L0.50 20.0 2570-130101 7.1520.3
1,2,4-Trimethylbenzene g/L0.50 20.0 2570-130101 3.0020.3
1,3,5-Trimethylbenzene g/L0.50 20.0 2570-130104 1.7620.8
Vinyl Acetate g/L20 200 2570-13086.8 0.132174
Vinyl Chloride g/L0.50 20.0 2560-14098.8 1.5119.8
m+p Xylene g/L1.0 40.0 2570-130104 2.3841.6
o-Xylene g/L0.50 20.0 2570-130106 2.1021.2
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10426.0
g/L 25.0 70-130Surrogate: Toluene-d8 10526.2
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10626.4
Page 41 of 61
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 B265432 - SW-846 5030B
[TOC_3]B265432[TOC]
Blank (B265432-BLK1) Prepared & Analyzed: 08/31/20
Acetone g/L50ND
tert-Amyl Methyl Ether (TAME)g/L0.50ND
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
tert-Butyl Alcohol (TBA)g/L20ND
n-Butylbenzene g/L0.50ND
sec-Butylbenzene g/L0.50ND
tert-Butylbenzene g/L0.50ND
tert-Butyl Ethyl Ether (TBEE)g/L0.50ND
Carbon Tetrachloride g/L0.50ND
Chlorobenzene g/L0.50ND
Ethanol g/L50 L-04ND
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
Page 42 of 61
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 B265432 - SW-846 5030B
Blank (B265432-BLK1) Prepared & Analyzed: 08/31/20
Toluene g/L0.50ND
1,2,3-Trichlorobenzene g/L1.0ND
1,2,4-Trichlorobenzene g/L0.50ND
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 80.420.1
g/L 25.0 70-130Surrogate: Toluene-d8 94.023.5
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 98.624.6
LCS (B265432-BS1) Prepared & Analyzed: 08/31/20
Acetone g/L50 100 70-130103103
tert-Amyl Methyl Ether (TAME)g/L0.50 10.0 70-13093.69.36
Benzene g/L0.50 10.0 70-13010210.2
Bromobenzene g/L0.50 10.0 70-13097.49.74
Bromochloromethane g/L0.50 10.0 70-13012012.0
Bromodichloromethane g/L0.50 10.0 70-13088.98.89
Bromoform g/L0.50 10.0 70-13094.69.46
Bromomethane g/L2.0 10.0 L-0260-140210*21.0
2-Butanone (MEK)g/L5.0 100 70-130108108
tert-Butyl Alcohol (TBA)g/L20 100 40-13091.991.9
n-Butylbenzene g/L0.50 10.0 70-13095.29.52
sec-Butylbenzene g/L0.50 10.0 70-13097.69.76
tert-Butylbenzene g/L0.50 10.0 70-13096.59.65
tert-Butyl Ethyl Ether (TBEE)g/L0.50 10.0 70-13099.89.98
Carbon Tetrachloride g/L0.50 10.0 70-13093.29.32
Chlorobenzene g/L0.50 10.0 70-13010910.9
Ethanol g/L50 100 L-04, J70-13038.1 *38.1
Chlorodibromomethane g/L0.50 10.0 70-13092.49.24
Chloroethane g/L0.50 10.0 60-14010610.6
Chloroform g/L0.50 10.0 70-13098.19.81
Chloromethane g/L0.60 10.0 60-14089.78.97
2-Chlorotoluene g/L0.50 10.0 70-13010110.1
4-Chlorotoluene g/L0.50 10.0 70-13010210.2
1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13097.49.74
1,2-Dichlorobenzene g/L0.50 10.0 70-13096.99.69
1,3-Dichlorobenzene g/L0.50 10.0 70-13098.89.88
1,4-Dichlorobenzene g/L0.50 10.0 70-13098.19.81
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14097.59.75
1,1-Dichloroethane g/L0.50 10.0 70-13010410.4
1,2-Dichloroethane g/L0.50 10.0 70-13078.97.89
1,1-Dichloroethylene g/L0.50 10.0 70-13010010.0
cis-1,2-Dichloroethylene g/L0.50 10.0 70-13010510.5
trans-1,2-Dichloroethylene g/L0.50 10.0 70-13010710.7
Page 43 of 61
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 B265432 - SW-846 5030B
LCS (B265432-BS1) Prepared & Analyzed: 08/31/20
1,2-Dichloropropane g/L0.50 10.0 70-13010510.5
1,3-Dichloropropane g/L0.50 10.0 70-13096.79.67
2,2-Dichloropropane g/L0.50 10.0 70-13092.69.26
1,1-Dichloropropene g/L0.50 10.0 70-13010110.1
cis-1,3-Dichloropropene g/L0.50 10.0 70-13094.29.42
trans-1,3-Dichloropropene g/L0.50 10.0 70-13085.78.57
Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13010910.9
Ethylbenzene g/L0.50 10.0 70-13010510.5
2-Hexanone (MBK)g/L5.0 100 70-130107107
Isopropylbenzene (Cumene)g/L0.50 10.0 70-13010610.6
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13097.29.72
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13091.99.19
Methylene Chloride g/L5.0 10.0 70-13010510.5
4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-130107107
Naphthalene g/L0.50 10.0 70-13098.29.82
n-Propylbenzene g/L0.50 10.0 70-13010210.2
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 70-13010410.4
Toluene g/L0.50 10.0 70-13097.79.77
1,2,3-Trichlorobenzene g/L1.0 10.0 70-13091.99.19
1,2,4-Trichlorobenzene g/L0.50 10.0 70-13095.39.53
1,1,1-Trichloroethane g/L0.50 10.0 70-13095.79.57
1,1,2-Trichloroethane g/L0.50 10.0 70-13097.89.78
Trichloroethylene g/L0.50 10.0 70-13098.99.89
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 70-13088.38.83
1,2,3-Trichloropropane g/L0.50 10.0 70-13011211.2
1,2,4-Trimethylbenzene g/L0.50 10.0 70-13095.49.54
1,3,5-Trimethylbenzene g/L0.50 10.0 70-13010310.3
Vinyl Acetate g/L20 100 70-130115115
Vinyl Chloride g/L0.50 10.0 60-14010910.9
m+p Xylene g/L1.0 20.0 70-13010521.0
o-Xylene g/L0.50 10.0 70-13010310.3
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 78.719.7
g/L 25.0 70-130Surrogate: Toluene-d8 93.623.4
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10025.0
LCS Dup (B265432-BSD1) Prepared & Analyzed: 08/31/20
Acetone g/L50 100 2570-13098.2 5.0598.2
tert-Amyl Methyl Ether (TAME)g/L0.50 10.0 2570-13092.0 1.729.20
Benzene g/L0.50 10.0 2570-130103 0.58410.3
Bromobenzene g/L0.50 10.0 2570-13095.1 2.399.51
Bromochloromethane g/L0.50 10.0 2570-130121 0.82812.1
Bromodichloromethane g/L0.50 10.0 2570-13088.2 0.7918.82
Bromoform g/L0.50 10.0 2570-13092.9 1.819.29
Bromomethane g/L2.0 10.0 25 L-0260-140200 4.63*20.0
2-Butanone (MEK)g/L5.0 100 2570-130102 5.17102
tert-Butyl Alcohol (TBA)g/L20 100 2540-13082.7 10.582.7
n-Butylbenzene g/L0.50 10.0 2570-13091.7 3.759.17
sec-Butylbenzene g/L0.50 10.0 2570-13095.8 1.869.58
tert-Butylbenzene g/L0.50 10.0 2570-13097.5 1.039.75
tert-Butyl Ethyl Ether (TBEE)g/L0.50 10.0 2570-13098.7 1.119.87
Page 44 of 61
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 B265432 - SW-846 5030B
LCS Dup (B265432-BSD1) Prepared & Analyzed: 08/31/20
Carbon Tetrachloride g/L0.50 10.0 2570-13092.6 0.6469.26
Chlorobenzene g/L0.50 10.0 2570-130107 2.3210.7
Ethanol g/L50 100 25 L-04, J70-13033.4 12.9*33.4
Chlorodibromomethane g/L0.50 10.0 2570-13090.2 2.419.02
Chloroethane g/L0.50 10.0 2560-140103 2.7710.3
Chloroform g/L0.50 10.0 2570-13095.1 3.119.51
Chloromethane g/L0.60 10.0 2560-14088.7 1.128.87
2-Chlorotoluene g/L0.50 10.0 2570-13099.3 1.309.93
4-Chlorotoluene g/L0.50 10.0 2570-13099.2 3.179.92
1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-13097.2 0.2069.72
1,2-Dichlorobenzene g/L0.50 10.0 2570-13094.7 2.309.47
1,3-Dichlorobenzene g/L0.50 10.0 2570-13096.4 2.469.64
1,4-Dichlorobenzene g/L0.50 10.0 2570-13094.8 3.429.48
Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-14095.7 1.869.57
1,1-Dichloroethane g/L0.50 10.0 2570-130101 2.5310.1
1,2-Dichloroethane g/L0.50 10.0 2570-13087.3 10.18.73
1,1-Dichloroethylene g/L0.50 10.0 2570-13097.6 2.539.76
cis-1,2-Dichloroethylene g/L0.50 10.0 2570-130101 3.9710.1
trans-1,2-Dichloroethylene g/L0.50 10.0 2570-130107 0.28010.7
1,2-Dichloropropane g/L0.50 10.0 2570-130102 2.5110.2
1,3-Dichloropropane g/L0.50 10.0 2570-13096.5 0.2079.65
2,2-Dichloropropane g/L0.50 10.0 2570-13090.1 2.749.01
1,1-Dichloropropene g/L0.50 10.0 2570-130100 0.29810.0
cis-1,3-Dichloropropene g/L0.50 10.0 2570-13090.9 3.579.09
trans-1,3-Dichloropropene g/L0.50 10.0 2570-13086.9 1.398.69
Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-130109 0.27510.9
Ethylbenzene g/L0.50 10.0 2570-130101 3.9810.1
2-Hexanone (MBK)g/L5.0 100 2570-130104 3.21104
Isopropylbenzene (Cumene)g/L0.50 10.0 2570-130102 3.4610.2
p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-13095.9 1.359.59
Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-13090.2 1.879.02
Methylene Chloride g/L5.0 10.0 2570-130106 0.47510.6
4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-130103 3.40103
Naphthalene g/L0.50 10.0 2570-13095.4 2.899.54
n-Propylbenzene g/L0.50 10.0 2570-130100 1.6810.0
Styrene g/L0.50 10.0 2570-130103 0.57910.3
1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-130100 4.8810.0
Tetrachloroethylene g/L0.50 10.0 2570-130108 3.9610.8
Toluene g/L0.50 10.0 2570-13097.8 0.1029.78
1,2,3-Trichlorobenzene g/L1.0 10.0 2570-13089.7 2.428.97
1,2,4-Trichlorobenzene g/L0.50 10.0 2570-13091.9 3.639.19
1,1,1-Trichloroethane g/L0.50 10.0 2570-13095.4 0.3149.54
1,1,2-Trichloroethane g/L0.50 10.0 2570-13097.8 0.009.78
Trichloroethylene g/L0.50 10.0 2570-130100 1.1110.0
Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-13088.6 0.3398.86
1,2,3-Trichloropropane g/L0.50 10.0 2570-130114 2.3911.4
1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13094.3 1.169.43
1,3,5-Trimethylbenzene g/L0.50 10.0 2570-130100 2.4610.0
Vinyl Acetate g/L20 100 2570-130114 1.39114
Vinyl Chloride g/L0.50 10.0 2560-140106 2.8010.6
m+p Xylene g/L1.0 20.0 2570-130103 1.7320.7
o-Xylene g/L0.50 10.0 2570-13099.3 3.469.93
Page 45 of 61
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 B265432 - SW-846 5030B
LCS Dup (B265432-BSD1) Prepared & Analyzed: 08/31/20
g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 78.619.6
g/L 25.0 70-130Surrogate: Toluene-d8 94.223.6
g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 97.724.4
Page 46 of 61
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
Drinking Water Organics EPA 504.1 - Quality Control
QUALITY CONTROL
[TOC_2]Drinking Water Organics EPA 504.1[TOC]
Batch B265249 - EPA 504 water
[TOC_3]B265249[TOC]
Blank (B265249-BLK1) Prepared & Analyzed: 08/27/20
1,2-Dibromoethane (EDB) [2C]g/L0.021ND
g/L 1.04 70-130Surrogate: 1,3-Dibromopropane [2C]92.50.966
LCS (B265249-BS1) Prepared & Analyzed: 08/27/20
1,2-Dibromoethane (EDB) [2C]g/L0.021 0.261 70-13091.60.239
g/L 1.04 70-130Surrogate: 1,3-Dibromopropane [2C]98.71.03
LCS Dup (B265249-BSD1) Prepared & Analyzed: 08/27/20
1,2-Dibromoethane (EDB) [2C]g/L0.021 0.262 70-13098.8 7.890.258
g/L 1.05 70-130Surrogate: 1,3-Dibromopropane [2C]1031.07
Matrix Spike (B265249-MS1) Prepared: 08/27/20 Analyzed: 08/28/20 Source: 20H1272-03
1,2-Dibromoethane (EDB) [2C]g/L0.020 0.250 65-13598.00.245 ND
g/L 0.999 70-130Surrogate: 1,3-Dibromopropane [2C]96.10.960
Page 47 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES MW-2
EPA 504.1
Lab Sample ID:Date(s) Analyzed:20H1272-02
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
Instrument ID (2):
08/28/2020 08/28/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
0.0270.0000.0003.3112 7.1
[TOC_1]Dual Column RPD Report[TOC]
Page 48 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES MW-6R
EPA 504.1
Lab Sample ID:Date(s) Analyzed:20H1272-04
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
A Instrument ID (2):B
08/28/2020 08/28/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
280.0000.0003.3082 0.0
Page 49 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES MW-7
EPA 504.1
Lab Sample ID:Date(s) Analyzed:20H1272-05
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
Instrument ID (2):
08/28/2020 08/28/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
0.140.0000.0003.3092 19.4
Page 50 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES MW-12
EPA 504.1
Lab Sample ID:Date(s) Analyzed:20H1272-07
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
Instrument ID (2):
08/28/2020 08/28/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
0.0770.0000.0003.3102 6.3
Page 51 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES MW-14
EPA 504.1
Lab Sample ID:Date(s) Analyzed:20H1272-08
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
A Instrument ID (2):B
08/28/2020 08/28/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
1300.0000.0003.3092 0.0
Page 52 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES LCS
EPA 504.1
Lab Sample ID:Date(s) Analyzed:B265249-BS1
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
Instrument ID (2):
08/27/2020 08/27/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
0.2390.0000.0003.3082 4.5
Page 53 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES LCS Dup
EPA 504.1
Lab Sample ID:Date(s) Analyzed:B265249-BSD1
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
Instrument ID (2):
08/27/2020 08/27/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
0.2580.0000.0003.3092 4.6
Page 54 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
IDENTIFICATION SUMMARY
FOR SINGLE COMPONENT ANALYTES Matrix Spike
EPA 504.1
Lab Sample ID:Date(s) Analyzed:B265249-MS1
Instrument ID (1):
GC Column (1):ID:(mm)(mm)ID:GC Column (2):
Instrument ID (2):
08/28/2020 08/28/2020
ANALYTE CONCENTRATION %DCOLRTRT WINDOW
FROM TO
0.2450.0000.0003.3092 15.4
Page 55 of 61
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 recoveries outside of control limits.
Data validation is not affected since all results are "not detected" for associated samples in this batch and bias is
on the high side.
L-02
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
pH of sample (pH 5) is outside of method specified preservation criteria.PR-08
Elevated reporting limit due to high concentration of target compounds.RL-11
[TOC_1]Flag/Qualifier Summary[TOC]
Page 56 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-22 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 57 of 61
Table of Contents
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
SM21-22 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
100033AIHA-LAP, LLC - ISO17025:2017AIHA 03/1/2022
M-MA100Massachusetts DEPMA 06/30/2021
PH-0567Connecticut Department of Publilc HealthCT 09/30/2021
10899 NELAPNew York State Department of HealthNY 04/1/2021
2516 NELAPNew Hampshire Environmental LabNH-S 02/5/2021
LAO00112Rhode Island Department of HealthRI 12/30/2020
652North Carolina Div. of Water QualityNC 12/31/2020
MA007 NELAPNew Jersey DEPNJ 06/30/2021
E871027 NELAPFlorida Department of HealthFL 06/30/2021
LL015036Vermont Department of Health Lead LaboratoryVT 07/30/2021
2011028State of MaineME 06/9/2021
460217Commonwealth of VirginiaVA 12/14/2020
2557 NELAPNew Hampshire Environmental LabNH-P 09/6/2021
VT-255716Vermont Department of Health Drinking WaterVT-DW 06/12/2021
25703North Carolina Department of HealthNC-DW 07/31/2021
68-05812Commonwealth of Pennsylvania DEPPA 06/30/2021
9100Dept. of Env, Great Lakes, and EnergyMI 10/1/2020
Page 58 of 61
Table of Contents
Page 59 of 61
Table of Contents
Page 60 of 61
Table of Contents
Page 61 of 61
Table of Contents

Appendix VI– Contaminant Mass Estimation as Benzene

Date
1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath LNAPL 1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath
52,450 16,760 10,240 950 950 1,049,000 335,200 204,800 260.9 18,739
1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath LNAPL 1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath
33,415 14,985 9,450 1,650 1,650 668,300 299,700 189,000 630.1 32,370
1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath LNAPL 1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath
31,010 15,470 4,190 890 890 620,200 309,400 83,800 7.6 17,792
1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath LNAPL 1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath
30,150 15645 8480 1350 1350 603,000 312,900 169,600 579.2 26,421
1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath LNAPL 1.0 - 100 100 - 5,000 5,000 - LNAPL LNAPL Beneath
0 0 0 0.0 0
Date Total Mass
(kg)
Total Mass
(lbs)
50.0 2,550 892,500 LNAPL Beneath LNAPL
4.46E-01 7.26 1,552.76 3.94 142.08
50.0 2,550 892,500 LNAPL Beneath LNAPL
2.84E-01 6.49 1,432.97 9.53 245.42
50.0 2,550 892,500 LNAPL Beneath LNAPL
2.63E-01 6.70 635.36 0.12 134.90
50.0 2,550 892,500 LNAPL Beneath LNAPL
2.56E-01 6.78 1,285.88 8.76 200.32
50.0 2,550 892,500 LNAPL Beneath LNAPL
0.00E+00 0.00 0.00 0.00 0.00
Notes:
LNAPL = Light non-aqueous phase liquid (free product)
* Depth of Contamination based on average estimated depths to bedrock, depth to water measurements and LNAPL thickness from monitoring well MW-13.
LNAPL Average Contamination Concentration for this estimate is based on the solubility of benzene in water (1,780,000 mg/L)
Beneath LNAPL Average Contamination Concentration is based on the NCDEQ Gross Contamination Level for benzene (5,000 mg/L) and the solubility of benzene.
Estimation for benzene based on LNAPL and dissolved concentrations; mass in soil not included.
Hybrid MMPE/air sparge event was performed from April 22 to April 26, 2019.
Needham Service Station, (Incident No.: 3510, UST #: WS-2467)
APPENDIX VI
Contaminant Mass Estimation as Benzene
Pilot Mountain, Surry County, North CarolinaS&ME Project No. 4305-17-229C
0.00 0.00
November 2017
Surface Area between Contours (ft2)Area (ft2) x Depth of Contamination* (ft) = Volume (ft3)
Between Contours
March 2015
3736.16
3762.16March 2015 1,706.49
November 2017 1,694.69
Volume (ft3) Between Contours x Average Contamination Concentration
(mg/L) x 30% Porosity
= Contamination Mass (kg)
July 2019
August 2020
3311.32August 2020 1,501.99
July 2019 777.34 1713.74