FA-822_15284_CA_MRP_20191227

SUBSEQUENT MONITORING REPORT
Robert Coleman Exxon (Incident #15284)
508 Fayetteville Road
Rockingham, Richmond County, North Carolina
December 27, 2019
Terracon Project No. 70149661A

Prepared for:
North Carolina Department of Environmental Quality
Division of Waste Management
Raleigh, North Carolina

Prepared by:
Terracon Consultants, Inc.
Raleigh, North Carolina

i
Table of Contents
A. SITE INFORMATION ............................................................................................ 1
B. EXECUTIVE SUMMARY ....................................................................................... 2
C. SITE HISTORY AND CHARACTERIZATION ....................................................... 3
C.1 Site Setting...................................................................................................................................... 3
C.2 Release Summary .......................................................................................................................... 4
C.3 Previous Investigations ................................................................................................................. 4
C.4 Water Supply Wells ........................................................................................................................ 4
D. ASSESSMENT INFORMATION ............................................................................ 4
D.1 Sampling Activities ........................................................................................................................ 4
D.1.1 Free Product Evaluation ................................................................................................................ 4
D.1.2 Groundwater Sampling Activities .................................................................................................. 4
D.1.3 Soil Vapor Sampling Activities ....................................................................................................... 5
D.2 Analytical Results .......................................................................................................................... 7
D.2.1 Groundwater Analytical Results .................................................................................................... 7
D.2.2 Soil Vapor Analytical Results ......................................................................................................... 8
E. CONCLUSIONS AND RECOMMENDATIONS ..................................................... 8
F. REFERENCES ......................................................................................................... 9

Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

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Table of Contents (continued)

FIGURES
Figure 1: Site Location Map
Figure 2: Site Plan
Figure 3: Water Supply Well Location Map
Figure 4: Groundwater Elevation Map (November 2019)
Figure 5: Exterior Soil Gas Sample Locations
Figure 6: Groundwater Analytical Results (November 2019)
Figure 7: Benzene Isoconcentration Map (November 2019)
Figure 8: Naphthalene Isoconcentration Map (November 2019)

TABLES
Table 1: Conceptual Site Model
Table 2: Water Supply Well Information
Table 3: Monitoring Well Construction Information and Groundwater Elevations
Table 4: Summary of Groundwater Analytical Results
Table 5: Summary of Soil Vapor Analytical Results

APPENDICES
Appendix A: Photographs and Field Notes
Appendix B: Laboratory Analytical Results and Chain of Custody Forms

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SUBSEQUENT MONITORING REPORT

A. SITE INFORMATION
Date of Report: December 27, 2019
NCDEQ Incident No: 15284
UST No. FA-822
Facility ID: Unknown
Site Name: Robert Coleman Exxon
Site Location: 508 Fayetteville Road
Rockingham, North Carolina 28379
Latitude: N 34.940014
Longitude: W 79.769464
UST Owner/Operator: N/A

Current Property Owner: Mr. Robert Coleman (deceased) and Mrs. Patricia Coleman
1005 Rowan Terrace
Rockingham, North Carolina 28379
Current Property
Occupant: Robert’s Automotive Service and Inspections

Consultant: Terracon Consultants, Inc. (Contact: William O. Frazier)
2401 Brentwood Road, Suite 107
Raleigh, North Carolina 27604
919-436-2964

Laboratory: Shealy Environmental Services, Inc. (NCDEQ No. 329)
106 Vantage Point Drive
West Columbia, South Carolina 29712
803-227-2704

Pace Analytical
12065 Lebanon Road
Mount Juliet, Tennessee 37122
800-7677-5859

Release Information: Release Discovery Date: December 1994
Estimated Quantity: Unknown
Cause of Release: Underground Storage Tank System
Currently Active Tanks: None

Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

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◼ Measurable thicknesses of free product were not observed in the monitoring wells. Free
product thicknesses have not been measured on-site since December 2008.
◼ The contaminant plume has not been delineated to the north (upgradient) or south
(downgradient) of the source area and may extend off-site. Attempts to acquire access to
install a downgradient monitoring well to the south of the site have been unsuccessful. The
contaminant plume is not delineated vertically.
◼ Two inactive water supply wells are located approximately 380 and 720 feet up-gradient
from the source area based on surficial topography. Municipal water is reportedly provided to
the site and surrounding properties. The nearest surface water feature is Falling Creek,
which is situated approximately 1,650 feet south of the site.
◼ In exterior soil gas samples, seven petroleum compounds, tetrachloroethene, and
trichloroethene were below NCDEQ Division of Waste Management Non-Residential Soil
Gas Screening Levels (SGSLs).
C. SITE HISTORY AND CHARACTERIZATION
The purpose of this report is to evaluate the current status of the groundwater quality and assess the
potential for vapor intrusion at the Robert Coleman Exxon site. Terracon completed this report to
summarize the findings of assessment activities performed on November 25, 2019 at the Robert
Coleman Exxon site located at 508 Fayetteville Road in Rockingham, Richmond County, North
Carolina (Figure 1). This Subsequent Monitoring Report was prepared for the site in response to a
request by Mr. Mark Petermann, Incident Manager with the NCDEQ Division of Waste Management,
State Lead Program.

The Subsequent Monitoring Report was prepared in general accordance with the 15A NCAC 2L
.0115 regulations and the NCDEQ UST Section Guidelines for Assessment and Corrective Action
for UST Releases, dated July 15, 2008, revised December 2013, under the supervision
of Mr. William O. Frazier, a North Carolina registered licensed geologist (North Carolina
License No.2576).

C.1 Site Setting
The Robert Coleman Exxon site is occupied by a single-story automotive maintenance facility
currently operated as Robert’s Automotive Repair & Inspections. The remaining portions of the site
consist of paved parking and driving areas and landscaped areas. Two aboveground storage tanks
of unknown contents are located in a brick containment area in the southeastern corner of the site.

The surrounding properties consist primarily of residential development. The First United Methodist
Church is located approximately 120 feet southwest of the site. The nearest surface water feature
is Falling Creek, which is situated approximately 1,650 feet south of the site. The site and
surrounding properties are depicted in Figure 2.
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

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C.2 Release Summary
A petroleum release from the former on-site UST system was discovered in December 1994, during
the excavation of two 6,000-gallon gasoline USTs, one 4,000-gallon gasoline UST, and one
550-gallon waste oil UST.

C.3 Previous Investigations
Investigations have been conducted at the site between 2008 and the present (as referenced in
Section F). Activities have included soil sampling, the installation and sampling of four monitoring
wells, and vapor intrusion assessments. Investigation results were used to generate a conceptual
site model of current conditions, which is included as Table 1.

C.4 Water Supply Wells
Two water supply wells have historically been identified approximately 380 and 720 feet of the UST
basin (source area). The wells were not used as a potable water source when first identified in
December 2008. At this time, wells WSW-1 and WSW-2 are inactive and are located up-gradient of
the site based on surficial topography. According to the Richmond County Historical Society, which
owns the property occupied by well WSW-1, the well is inactive and has been capped with a large
concrete block. Municipal water is reportedly available to the properties located within 1,000 feet of
the source area.

Water supply well information is presented in Table 2 and well locations are depicted on Figure 3.
D. ASSESSMENT INFORMATION
D.1 Sampling Activities

D.1.1 Free Product Evaluation
Free product was not encountered in the on-site monitoring wells during this assessment and has
not been encountered on-site since December 2008 in MW-1.

D.1.2 Groundwater Sampling Activities
Terracon mobilized to the site on November 25, 2019 to conduct groundwater sampling as
requested by the NCDEQ. Terracon sampled four on-site monitoring wells (MW-1 through MW-4).

Prior to sample collection, Terracon gauged the depth to groundwater in the monitoring wells. The
approximate locations of the wells are shown on Figure 2. Current and historical groundwater
elevation measurements are provided in Table 3. The surficial groundwater flow direction was
estimated to the south based on the calculated groundwater elevations and site topography.
Groundwater elevations for the most recent sampling event are depicted on Figure 4. Photographs
and copies of field notes are provided in Appendix A.
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

Responsive ■ Resourceful ■ Reliable 5

Prior to sampling, the wells were purged with a peristaltic pump using low flow sampling techniques
(i.e., <200 milliliters per minute) prior to sampling. Field parameters consisting of pH, temperature,
oxidation-reduction potential (ORP), dissolved oxygen, and conductivity were measured at each of
the well locations. After stabilization of pH and conductivity, a groundwater sample was collected
directly into laboratory supplied containers at low flow sampling rates.

The groundwater samples were placed in laboratory-supplied glassware, labeled and stored in an
ice-packed cooler. Additionally, a field blank was collected and submitted for laboratory analysis.
The samples, along with chain-of-custody documentation, were delivered to Shealy Environmental
Services, Inc., in West Columbia, South Carolina for analysis of VOCs by EPA Method 6200B
including methyl tert-butyl ether (MTBE), ethylene dibromide (EDB) and di-isopropyl ether (IPE).

D.1.3 Soil Vapor Sampling Activities
Three temporary exterior soil gas sampling points (SV-01, SV-02, and SV-03) were installed within
approximately 10 feet of the current on-site building; the soil vapor points were off-set one to five
feet from the locations sampled during the July 2017 and January 2018 events (Figure 5). Analytical
results from the July 2017 and January 2018 events did not indicate constituents above their
respective Non-Residential SGSLs. The November 2019 sample locations were chosen for temporal
comparison with the initial data set. The soil gas points were constructed in direct push technology
(DPT) soil borings advanced to depths ranging from 6.0 to 6.5 feet below surface (ft bls). Each soil
gas point was constructed in general accordance with the practices outlined in the Interstate
Technology Regulatory Council’s Vapor Intrusion Pathway: A Practical Guidance (2007).

The points were constructed with a 6-inch stainless steel screen with barbed fittings to connect to
small bore (0.25 inches O.D.) Teflon®-lined sample tubing. A sand filter pack was placed within the
annulus to a height of approximately six inches above the screen point. An approximate one-foot
thick layer of dry, granular (No. 20) bentonite was placed in the borehole annulus above the sand
pack followed by a layer of bentonite hydrated with distilled water to the land surface. Soil vapor
points were allowed to equilibrate for a minimum of two hours after installation before sampling.

A shut-in (dead-head) test was conducted before sampling to check for leaks in the above-ground
purge/sampling manifold. The flow controller influent was capped, and a hand pump was used to
induce a negative pressure reading on the manifold pressure gauge. If there was an observable loss
of vacuum, the fittings were adjusted until the vacuum in the sample train did not noticeably
dissipate.

Prior to sampling, laboratory supplied, batch certified 1.0-liter summa canisters were connected to
tubing using Swagelok® fittings at the sub-slab sampling points. A helium tracer test was conducted
prior to collecting each sample. The tracer test serves as a quality assurance/quality control (QA/QC)
method to verify the integrity of the soil vapor point seal in addition to the connection of the sampling
manifold and the soil vapor point. A field instrument capable of measuring helium concentrations down
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

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to 25 parts per million (ppm) was used to verify the presence and concentration of helium in the
sample points and/or within the sampling manifolds.

The protocol for using a tracer gas is to enclose the sampling points and the sampling manifolds with a
shroud. The helium tracer gas is released into the shroud until the atmosphere inside the shroud is
approximately 10 to 20 percent helium. Approximately three purge volumes were evacuated through
Teflon-lined tubing that passes through the shroud using a peristaltic pump and/or dedicated syringe.
Purged soil vapor was collected in a 1-liter Tedlar® bag. After each purge volume was evacuated, a
purge sample from the Tedlar® bag was screened for helium to assess for leaks in the well seal and/or
sampling manifold. Each annulus was considered to be sufficiently sealed when helium concentrations
were less than ten percent of the helium concentration in the shroud. Helium was not detected above
the field instrument’s detection limit of 25 ppm in the sampled points.

After completion of the helium tracer tests, the sample canisters were filled using dedicated flow
controllers set to a sample rate of less than approximately 200 milliliters per minute. The canister
vacuums were recorded prior to and periodically during the filling periods. At the conclusion of the
sampling event, the final canister vacuums were recorded. The canisters were packaged and
delivered along with chain of custody documentation to Pace Analytical Laboratories for analysis of
VOCs via EPA Method TO-15 for the following compounds:

◼ benzene
◼ n-butylbenzene
◼ 1,2-dichloroethane
◼ ethylbenzene
◼ isopropylbenzene
◼ naphthalene
◼ n-propylbenzene
◼ toluene
◼ 1,2,4-trimethylbenzene
◼ 1,3,5-trimethylbenzene
◼ m&p-xylene
◼ o-xylene
◼ tetrachloroethene
◼ trichloroethene

The compounds listed above have been detected above 2L standards and/or NCDEQ DWM Vapor
Intrusion Groundwater Screening Levels in groundwater samples during recent sampling events.
The temporary soil gas sampling points were abandoned on November 25, 2019 by attempting to
pull up the soil vapor point, cutting the tubing flush with the ground surface, and patching the hole at
the surface.

D.1.4 Site Inventory Assessment
During the November 2019 sampling event, Terracon performed a site inventory assessment of the
chemicals and materials used at the on-site Robert’s Automotive Inspections and Brakes. Terracon
observed the following associated with site operations:

One inground hydraulic lift
One aboveground hydraulic lift
Two used engine oil aboveground
storage tanks to the southeast of the
building
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

Responsive ■ Resourceful ■ Reliable 7
One used engine oil reservoir inside the
garage bay
One brake rotor grinder located inside
the garage bay
Numerous 1- to 5-quart engine coolant,
brake fluid, and engine oil containers
Approximately 8 5-gallon tanks of
refrigerant (1,1,1-2-tetrafluoroethane)
and the associated injection equipment
One air compressor located inside the
garage bay
One 55-gallon drum of new engine oil
One 300-gallon tank of new engine oil
Two interior floor drains

Site personnel reported that normal operations involve oil changes, routine automotive maintenance,
and vehicle inspections. Chlorinated solvents reportedly are not used in the current operations at the
site. It is not known if chlorinated solvents were used in site operations in the past. The interior floor
drains reportedly are connected to the sanitary sewer.

D.2 Analytical Results

D.2.1 Groundwater Analytical Results
Based on the laboratory analytical reports, five petroleum constituents (benzene, ethylbenzene,
isopropylbenzene, naphthalene, n-propylbenzene) were identified at concentrations above their 2L
standards in MW-1, MW-3 and/or MW-4. Concentrations were not detected above GCLs.

Petroleum constituent concentrations were not detected above the laboratory’s reporting limit in
MW-2.

Trichloroethene (TCE) and tetrachloroethene (PCE) were not detected above laboratory reporting
limits during the November 2019 sampling event but have been historically detected in monitoring
wells MW-4 and MW-2, respectively.

Constituents detected in the groundwater are depicted on Figure 6. The groundwater analytical
results from the monitoring wells are summarized in Table 4. Copies of the laboratory analytical
reports are provided in Appendix B.

Isoconcentration maps for benzene and naphthalene are provided as Figures 7 and 8, respectively.
These maps depict the approximate lateral extent of benzene and naphthalene in the groundwater;
however, the contaminant plume has not been delineated to the north or south. The area to the
north is topographically up-gradient of the site and is currently undeveloped. The area to the south
is developed with single family residences.

Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

Responsive ■ Resourceful ■ Reliable 8
D.2.2 Soil Vapor Analytical Results
Analytical results for soil vapor samples SV-01 through SV-03 were compared with the
North Carolina Department of Environmental Quality’s (NCDEQ) Residential and Non-Residential
Vapor Intrusion Soil Gas Screening Levels (VI-SGSLs). Soil vapor point locations are shown on
Figure 5. Results are included on Table 5 and are summarized as follows.

◼ Nine compounds (benzene, ethylbenzene, n-propylbenzene, toluene,
1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, total xylenes, PCE, and TCE) were detected
below their Residential SGSLs in soil vapor locations SV-01, SV-02 and/or SV-03.
E. CONCLUSIONS AND RECOMMENDATIONS
Based on information obtained during the completion of groundwater monitoring activities, Terracon
provides the following conclusions and findings.

◼ Five petroleum constituents were detected in monitoring wells MW-1, MW-3, and/or MW-4 at
concentrations that exceed their 2L standards. Concentrations have remained relatively
stable since 2011.
◼ GCL exceedances were not identified in the sampled monitoring wells. GCL exceedances
have not been detected on-site since April 2012.
◼ Measurable thicknesses of free product were not observed in the monitoring wells. Free
product thicknesses have not been measured on-site since December 2008.
◼ The contaminant plume has not been delineated vertically or to the north (upgradient) or
south (downgradient) of the source area and may extend off-site. NCDEQ has indicated that
further delineation to the north is not necessary, as the water supply wells in this area are
inactive and located up-gradient of the site. Further delineation to the south does not appear
necessary at this time based on the following: water supply wells have not been identified
within 1,000 feet in this direction; and, as the petroleum, TCE, and PCE soil vapor
concentrations do not exceed their residential VI-GWSLs on the site, vapor intrusion does
not appear to pose a risk to the down-gradient properties.
◼ Two inactive water supply wells are located approximately 380 and 720 feet up-gradient
from the source area based on surficial topography. Municipal water is reportedly provided to
the site and surrounding properties. The nearest surface water feature is Falling Creek,
which is situated approximately 1,650 feet south of the site.
◼ In exterior soil gas samples, seven petroleum compounds, tetrachloroethene, and
trichloroethene were detected below their respective SGSL. Analytical results from the July
2017 and January 2018 events did not indicate constituents above their respective SGSLs;
however, these two sampling events did not include analyses for tetrachloroethene and
trichloroethene.
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
Incident No. 15284
December 27, 2019

Responsive ■ Resourceful ■ Reliable 9
Based on the data presented in this Subsequent Monitoring report, Terracon recommends the
following activities be completed at the site:

◼ Based on the PCE and TCE concentrations in soil vapor and their inconsistent
concentrations within groundwater, NCDEQ believes the site is low risk and eligible for
closure with a deed restriction on the use of soil and groundwater at the site.
F. REFERENCES
Force, 2008. Receptor survey, soil sampling, and monitoring well installation activities,
December 30, 2008.
Agra, 2011. Monitoring report, July 26, 2011.
Crawford, 2012. Groundwater monitoring report, April 30, 2012.
Terracon, 2014. Federal/State-Lead Monitoring Report, October 22, 2014.
Terracon, 2015a. Soil Assessment Report, June 16, 2015.
Terracon, 2015b. Subsequent Monitoring Report, September 25, 2015.
Terracon, 2015c. Subsequent Monitoring Report, December 4, 2015.
Terracon, 2016a. Subsequent Monitoring Report, March 7, 2016.
Terracon, 2016b. Subsequent Monitoring Report, November 23, 2016.
Terracon, 2017. Subsequent Monitoring Report, August 4, 2017.
Terracon, 2018a. Subsequent Monitoring Report, March 3, 2018.
Terracon, 2018b. Closure Evaluation Report, November 21, 2018.

FIGURES
SITE
Copyright:© 2013 National Geographic Society, i-cubed
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MW-4benzene - 93sec-butylbenzene - 0.52di-isopropyl ether - 11ethylbenzene - 58isopropylbenzene - 4.2methyl terty-butyl ether - 0.48 Jnapthalene - 23n-propylbenzene - 4.0toluene - 1.51,2,4-trimethylbenzene - 0.88xylenes (total) - 4.93
MW-3benzene - 45n-butylbenzene - 24sec-butylbenzene - 8.7ethylbenzene - 1,800isopropylbenzene - 77napthalene - 200n-propylbenzene - 180toluene - 5.71,2,4-trimethylbenzene - 73xylenes (total) - 401
MW-2Concentrations Below Reporting Limits
MW-1benzene - 1.9ethylbenzene - 150isopropylbenzene - 26napthalene - 140n-propylbenzene - 66toluene - 681,2,4-trimethylbenzene - 7901,3,5-trimethylbenzene - 160xylenes (total) - 420
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7 N:\ENV_EH&S\Env\GIS\Projects\2014\70149661A - Robert Coleman\TA-04\70149661A - Figure 7 - November 2019- Benzene Iso Map.mxdNotes:Concentrations are in micrograms per liter (μg/L)AST: aboveground storage tankUST: underground storage tank
Data Sources:Site Boundary - Richmond County GISWell & Feature Locations - Crawford Env. Services
Benzene Isoconcentration Map(November 2019)
^_
³70149661A
JLF
12/9/2019
ROBERT COLEMAN EXXONINCIDENT #15284508 FAYETTEVILLE ROADROCKINGHAM, NC
Legend
"!AST (Unknown Contents)
@A Monitoring Well
Parcel Boundary
Site Boundary
Building
Road
Former Site Feature
Heating Oil AST
Benzene IsoconcentrationContour (dashed whereinferred)
0 20 4010Feet
Former WasteOil UST
@A
@A
@A
@A
"!
RobertColemanExxon
Residence
E . Wa s hi n gt o n S t r eetFayetteville Rd/US Highway 1Former UST Basin
FormerDispenser Island
GrassyArea
GrassyArea GrassyArea
MW-1140
MW-3200
MW-2<0.5MW-4236.0 µg/L60 µg/LFigureProject No.
Reviewed By:
Date:
Drawn By:ECD
2401 Brentwood Rd.Raleigh, NC 27604
PH. [phone] terracon.com
8 N:\ENV_EH&S\Env\GIS\Projects\2016\70167362 - Edgecombe Landfill\mxd files\2019-12_WSW Sampling\70149661A - Figure 8 - November 2019- Napthalene Iso Map.mxdNotes:Concentrations are in micrograms per liter (μg/L)AST: aboveground storage tankUST: underground storage tank
Data Sources:Site Boundary - Richmond County GISWell & Feature Locations - Crawford Env. Services
Napthalene Isoconcentration Map(November 2019)
^_
³70149661A
JLF
12/9/2019
ROBERT COLEMAN EXXONINCIDENT #15284508 FAYETTEVILLE ROADROCKINGHAM, NC
Legend
"!AST (Unknown Contents)
@A Monitoring Well
Parcel Boundary
Site Boundary
Building
Road
Former Site Feature
Heating Oil AST
Napthalene IsoconcentrationContour (dashed whereinferred)
0 20 4010Feet
Former WasteOil UST
TABLES
TABLE 1
Conceptual Site Model
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
NCDEQ Incident No. 15284
Yes - 6,000-gallon gas (x2), 4,000-gallon gas, & 550-gallon waste oil (removed 1994)
Yes - releases confirmed adjacent to former dispenser island
Information not available
NA
Coastal Plain
Residual Impacts
Extent
Contaminants of Concern
Concentrations
Soil Type Silty Sand (covered by asphalt and concrete)
Residual Impacts Yes - below residential MSCCs
Extent Vicinity of former dispenser island
Contaminants of Concern Petroleum VOCs & SVOCs; PCE, and TCE
Concentrations Above soil-to-groundwater MSCCs but below residential MSCCs
Soil Type Sandy silt and sandy clay
Source to GW?Yes - soil concentrations greater than soil-to-groundwater MSCCs
NAPL Present? Residual or Mobile?Free product not detected in monitoring wells since 2008
Depth to Groundwater 8 to 14 feet below land surface
Hydraulic Conductivity Unknown
Delineated? If so, extent?Not delineated to north or south
Extend Off-Site?Likely extends off-site to south
Contaminants of Concern BTEX, cumene, naphthalene, n-propylbenzene, 1,2,4-trimethylbenzene, 1,2-DCA
Concentrations Less than three orders of magnitude above 2L Standard and below GCLs
Trends Generally stable since 2011
Horizontal Gradient Approximately 0.004 ft/ft
Vertical Gradient Unknown
Depth to Groundwater
Delineated? If so, extent?
Extends Off-Site?
Hydraulic Conductivity
Contaminants of Concern
Concentrations
Trends
Horizontal Gradient
Approximately 1,650 feet south (Falling Creek)
Lateral Distance from Impacts to Building 5 feet or less
Depth to GW 8 to 14 feet below land surface
Precluding Factors Present? Specify.1,2-DCA (lead scavenger) detection (July 2017)
GW Concentrations > VISLs?Yes
Exterior Soil Gas Concentrations >VISLs?Concentrations below non-residential soil gas screening levels
Sub-Slab Concentrations > VISLs?Not sampled
Indoor Air Concentrations > VISLs?Not sampled
Is the VI Pathway Complete?Exterior soil gas data indicates petroleum VI not a concern
Soil excavation (80 cubic yards) during UST removal in 1994, subsequent soil investigations
indicate residual soil impacts below residential MSCCs
Groundwater remediation not attempted
Number within 250 feet None identified
Number within 250-500 feet 1 inactive
Number within 500-1,000 feet 1 inactive
Falling Creek
On-site workers
Automotive service & repair
Concentrations below Residential MSCCs - close without soil use restriction
NAPL and/or >GCLs NAPL and GCL exceedances not present
Water Supply Wells Not at risk per DEQ
Low risk based on distance >500 ft (NCDEQ UST Guidance)
Exterior soil gas data indicates petroleum VI not a concern
Notes:
MSCC: NCDEQ maximum soil contaminant concentrations UST: underground storage tank PCE: tetrachloroethene
2L Standard: 15A NCAC 2L groundwater quality standards NA: not applicable TCE: trichloroethene
GCL: NCDEQ gross contamination levels GW: groundwater
VISL: NCDEQ vapor intrusion screening levels VOC: volatile organic compound
NAPL: non-aqueous phase liquid SVOC: semi-volatile organic compound
NCDEQ UST Guidance: NCDEQ UST Section Guidelines for Assessment BTEX: benzene, toluene, ethylbenzene, xylenes
and Corrective Action for UST Releases DCA: dichloroethane
VI: Vapor IntrusionGroundwater SurficialNot Sampled
BedrockSource
Areas
UST(s)
Dispensers
Piping
Other SoilPhysiographic Province
SurficialNot Sampled
SubsurfaceSurfaceWaterDistance from Source
Contaminants of Concern
Not Sampled Concentrations
Groundwater or Surficial Source?Soil VaporScreeningAssessmentRemediationSoil (Type, When, Successful?)
Groundwater (Type, When, Successful?)ReceptorsWSWsSurface Water (Modeling/Screening or Empirical)
Vapor Intrusion (Modeling/Screening or Empirical)Closure PathwayCurrent/Proposed Property Use
Soil
GWSurface Water
Vapor Intrusion
TABLE 2
Water Supply Well Information
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
NCDEQ Incident No. 15284
Well No.Property Owner Mailing Address Property Address Distance/Directions
from site
WSW-1 Richmond County
Historical Society
P.O. Box 1763
Rockingham, NC 28380
Fayetteville Road
Rockingham, NC 28380 380 / northwest Inactive 746316940180 Public water available
Well Status/Use Parcel ID Notes
Public water availableWSW-2 Joe and Cooper McLaurin P.O. Box 848
Rockingham, NC 28380
501 E. Green Street
Rockingham, NC 28379 720 / north Inactive 746316945667
TABLE 3
Monitoring Well Construction Information and Groundwater Elevations
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
NCDEQ Incident No. 15284
Well Id
Date Water
Level Measured
Well Casing Depth
(ft. BGS)
Screened Interval
(x to y ft. BGS)
Bottom of Well
(ft. BGS)
Top of Casing
Elevation (ft.)
Depth to Water
from Top of
Casing (ft.)
Free Product
Thickness (ft.)
Groundwater
Elevation (ft.)Comments
12/02/08 10.77 0.25 89.41
03/22/11 13.17 -86.83
04/12/12 14.32 -85.68
09/19/14 11.89 -88.11
07/27/15 12.49 -87.51
11/02/15 12.33 -87.67
02/01/16 8.88 -91.12
08/11/16 11.79 -88.21
07/10/17 11.12 -88.88
01/12/18 13.43 -86.57
11/25/19 13.05 -86.95
12/02/08 10.01 -89.16
03/22/11 13.54 -85.63
04/12/12 12.65 -86.52
09/19/14 12.31 -86.86
07/27/15 12.05 -87.12
11/02/15 NM -NM
02/01/16 8.89 -90.28
08/11/16 10.79 -88.38
07/10/17 9.82 -89.35
01/12/18 12.30 -86.87
11/25/19 11.46 -87.71
12/02/08 10.55 -89.46
03/22/11 12.25 -87.76
04/12/12 13.87 -86.14
09/19/14 11.71 -88.30
07/27/15 12.36 -87.65
11/02/15 11.57 -88.44
02/01/16 8.85 -91.16
08/11/16 11.57 -88.44
07/10/17 10.89 -89.12
01/12/18 13.15 -86.86
11/25/19 12.58 -87.43
11/02/15 11.68 -88.12
02/01/16 9.37 -90.43
08/11/16 11.15 -88.65
07/10/17 11.08 -88.72
01/12/18 12.90 -86.90
11/25/19 12.52 -87.28
Notes:
"-" indicates measurable amounts of free product were not detected
Groundwater elevations adjusted for measurable free product by using the following calculation: (TOC Elevation - Depth to water) + (FP thickness * 0.729)
0.729 is the specific gravity for automotive gasoline
Elevations are based on an arbitrary datum of 100.00 feet set at MW-1 top of casing
NM=Not Measured (MW-2 under several inches of water due to heavy rain)
Type II
Type IIMW-4 10 10-20 20.0 99.80
MW-3 8 8 - 18 18.0 100.01
Type II
MW-2 9.5
MW-1 10 10 - 20 20.0 100.00
9.5 - 19.5 19.5 99.17 Type II
TABLE 4
Summary of Groundwater Analytical Results
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
NCDEQ Incident No. 15284
Well/Sample
I.D.
Date Collected
(mm/dd/yy)tert-ButylbenzeneChloroethane2-Chlorotoluene12/02/08
03/22/11 26 130 <50 <50 <50 17 BJ <50 <50 <50 <50 2,200 93 14 J <50 340 290 <50 <50 <50 3,500 2,800 <50 17,500
04/05/12 250 <250 <250 <250 <250 <250 <250 <250 <250 66 3,600 240 J 73 J <250 7,600 810 590 <250 <250 3,700 12000 3000 47,000
09/19/14 10.1 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 <1.2 252 7 -<1.2 146 14.7 17.2 <1.2 <1.2 567 312 87.2 1,730
07/27/15 11.1 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 392 8.8 -<2.5 153 20.1 28.7 <2.5 <2.5 976 309 80.5 2,709
11/02/15 4.2 J 17 <10 <10 <10 <10 <10 <10 <10 <10 610 23 3.2 J <10 610 39 <10 <10 <10 590 230 1,000 5,400
02/01/16 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
08/11/16 <2.5 3.1 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 36 2.3 J <2.5 <2.5 56 4 <2.5 <2.5 <2.5 46 110 25 530
07/10/17 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 2.4 0.67 <0.50 <0.50 3.5 1.6 <0.50 <0.50 0.41J <0.50 4.2 22 21.6
01/12/18 2.7 <2.5 <2.5 <2.5 <2.5 <2.5 87 <2.5 <2.5 <2.5 410 44 <2.5 <2.5 440 120 <2.5 <2.5 <2.5 330 1,900 440 2,370
11/25/19 1.9 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 150 26 <0.50 <0.50 140 66 <0.50 <0.50 <0.50 68 790 160 420
12/02/08 <0.5 <0.5 <0.5 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 3.7 <0.5 <0.5 <0.5 4.3 1.2 <0.5 <0.5 <0.5 3.1 4.4 1.8 22.2
03/22/11 <0.5 <0.5 <0.5 <0.5 <0.5 2 B <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
04/05/12 <0.5 <0.5 <0.5 <0.5 <0.5 1.7 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.48 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
09/19/14 <0.25 <0.25 <0.25 <0.25 <0.25 0.26 J <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <1.0 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.50
07/27/15 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 -<0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
11/02/15
02/01/16 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
08/11/16 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.4 <0.50 <0.50 <0.50 <0.50 <0.50
07/10/17 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.60 <0.50 <0.50 <0.50 <0.50 <1.00
01/12/18 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
11/25/19 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.47J <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.0
12/02/08 344 <10 <10 <10 <20 <10 <10 <10 <10 20.3 2,680 98.5 <10 13.4 1,250 241 <10 <10 <10 404 2490 262 4,027
03/22/11 170 51 13 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 8.4 1,700 74 16 4.3 J 900 200 <5.0 <5.0 <5.0 27 910 67 1,339
04/05/12 390 59 21 <5.0 <5.0 <5.0 65 <5.0 10 18 2,600 130 22 10 1,000 330 <5.0 <5.0 <5.0 34 340 49 1,137
09/19/14 157 122 47 <6.2 <6.2 <6.2 <6.2 <6.2 <6.2 7.5 J 3,060 220 <6.2 <6.2 2,050 498 <6.2 <6.2 <6.2 29.8 705 <6.2 1,269
07/27/15 170 47.5 24 <6.2 <6.2 <6.2 <6.2 <6.2 <6.2 4.3 J 1,390 91.2 -<6.2 658 220 <6.2 <6.2 <6.2 21.1 154 <6.2 448.7
11/02/15 71 19 6.9 <5.0 <5.0 3.0 J <5.0 <5.0 <5.0 <5.0 1,300 56 3.5 J <5.0 620 120 <5.0 <5.0 <5.0 5.6 310 6.2 600
02/01/16 69 <5.0 10 <5.0 <5.0 4.4 BJ <5.0 <5.0 <5.0 <5.0 1,600 76 9.0 <5.0 1,100 180 <5.0 <5.0 <5.0 5.5 1,100 <5.0 1,212
08/11/16 120 30 11 <10 <10 <10 <10 <10 4.1J <10 2,200 75 <10 <10 820 200 <10 <10 <10 8.7J 370 5.8J 934
07/10/17 80 26 9.5J <10 <10 <10 <10 <10 <10 <10 1,600 68 <10 <10 490 170 <10 <10 <10 <10 <10 270 692
01/12/18 160 22 9.1 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 3.2 1,900 75 3.8 <2.5 170 180 <2.5 <2.5 <2.5 11 40 <2.5 341
11/25/19 45 24 8.7 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 1800 77 <5.0 <5.0 200 180 <5.0 <5.0 <5.0 5.7 73 <5.0 401
11/02/15 40 <0.50 2.1 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 4.7 110 10 3.6 0.59 62 11 <0.50 <0.50 <0.50 3.8 49 22 56.6
02/01/16 220 <2.5 2.2 J <2.5 <2.5 1.4 BJ <2.5 <2.5 <2.5 24 150 10 <2.5 1.3 J 41 12 <2.5 <2.5 <2.5 7.3 36 16 53.2
08/11/16 230 <2.5 1.9J <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 20 180 10 3.2 0.96 J 50 13 <2.5 <2.5 <2.5 6.9 46 13 62.5
07/10/17 260 3.1 2.1J <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 23 150 11 3.4 <2.5 47 13 <2.5 <2.5 6.1 <2.5 17 40 57.6
01/12/18 170 <0.5 1.9 0.42 J 0.5 <0.5 <0.5 <0.5 <0.5 20 140 10 2.9 0.97 52 12 <0.5 <0.5 <0.5 4.6 16 13 40.6
11/25/19 93 <0.50 0.52 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 11 58 4.2 <0.50 0.48 J 23 4.0 <0.50 <0.50 <0.50 1.5 0.88 <0.50 4.93
1 70 70 70 3,000 70 100 0.02 0.4 70 600 70 25 20 6 70 70 0.7 3 600 400 400 500
5,000 6,900 8,500 15,000 NE 70,000 NE 50 400 70,000 84,500 25,000 11,700 20,000 6,000 30,000 70,000 700 3000 260,000 28,500 25,000 85,500
Notes:
Results in micrograms per liter (µg/L)J - estimated value below laboratory reporting limit and above method detection limit
-' denotes not analyzed BDL - below laboratory detection limit
Gray shading denotes concentrations above 15A NCAC 2L groundwater standard (2L standard)B - detected in the method blank
Yellow shading denotes concentrations above Gross Contamination Levels (GCLs)NE - not established
2L Standard (µg/L)
GCL (µg/L)
MW-2
MW-3
MW-4
MW-1
SM 6200BAnalytical Method
1,2,4-TrimethylbenzeneContaminant of Concern →p-IsopropyltolueneBenzeneChloroformEthylbenzeneIsopropylbenzenesec-Butylbenzenen-Butylbenzene1,2-DichloroethaneDi-isopropyl ether (IPE)1,2-Dibromoethane (EDB)TolueneXylenes (Total)1,3,5-TrimethylbenzeneStyreneSample not collected - Free product observed
Sample not collected - well under water from heavy rain NaphthaleneTetrachloroetheneTrichloroetheneMethyl tert-butyl ether (MTBE)n-Propylbenzene
TABLE 5
Summary of Soil Vapor Analytical Results
Robert Coleman Exxon
Rockingham, North Carolina
Terracon Project No. 70149661A
NCDEQ Incident No. 15284
Sample Type:
Sample ID:
Sample Date:07/10/17 01/12/18 11/25/19 07/10/17 01/12/18 11/25/19 07/10/17 01/12/18 11/25/19
Depth (ft bls)6.0-6.5 6.0 6.5 6.0-6.5 5.5 6.0 6.0-6.5 5.5 6.0
Benzene 4.16 9.27 2.60 38.8 15.9 4.6 15.6 1.29 9.3 120 1,600
n-Butylbenzene <2.21 <2.21 <1.10 <2.21 <2.21 <1.10 <2.21 <2.21 <1.10 NE NE
1,2-Dichloroethane <1.62 <1.62 <0.810 <1.62 <1.62 <0.810 <1.62 <1.62 <0.810 36 470
Ethylbenzene 6.83 4.28 1.29 14.8 <1.73 3.81 16.0 <1.73 5.85 370 4,900
Isopropylbenzene <1.97 <1.97 <0.983 4.88 <1.97 <0.983 7.46 <1.97 <0.983 2,800 35,000
Naphthalene <6.60 <6.60 <3.30 <6.60 <6.60 <3.30 <6.60 <6.60 <3.30 21 260
n-Propylbenzene 3.05 <1.96 <0.982 3.70 <1.96 1.22 4.27 <1.96 1.11 7,000 88,000
Tetrachloroethene ----5.76 ----21.70 ----21.00 280 3,500
Trichloroethene ----<1.07 ----<1.07 ----1.33 14 180
Toluene 22.4 18.5 8.25 49.7 9.80 19.0 65.1 3.10 48.2 35,000 440,000
1,2,4-Trimethylbenzene 13.3 4.76 1.57 12.0 3.65 6.8 10.8 3.12 5.4 420 5,300
1,3,5-Trimethylbenzene 4.48 2.57 <0.982 5.45 <1.96 2.52 4.86 <1.96 2.23 420 5,300
Xylenes (Total)36.22 12.37 7.14 89.1 14.09 23.46 66.4 5.48 29.13 700 8,800
Notes:
Analyzed compounds are shown.VI-SGSL: NCDEQ Division of Waste Management
A short list of TO-15 compounds was analyzed based on compounds previously detected in groundwater. Residential and Non-Residential Vapor Intrusion Screening Levels -
Concentrations are in micrograms per cubic meter (µg/m3). Sub-slab Soil Gas Screening Concentrations (February 2018)
Concentrations in bold were detected above laboratory reporting limits.ft bls: feet below land surface
Compounds detected in one or more samples are shown.Sample depth for soil vapor point is the bottom of the screen.
<: Indicates analyte was not detected above laboratory reporting limits. Samples collected during the 11/25/19 were denoted as SG-01 through SG-03 on the laboratory
--: Compound was not analyzed by laboratory. chain of custody and field notes. Sample names have been revised here for consistency.
Exterior Soil Gas
Residential VI-SGSL Non-Residential VI-SGSLSV-01 SV-02 SV-03
APPENDIX A
PHOTOGRAPHS and FIELD NOTES
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 1 View of Robert's Automotive, formerly Robert Coleman Exxon; facing north

Photo 2 View of MW-1; facing south
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 3 View of MW-2; facing east

Photo 4 View of MW-3; facing east
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 5 View of MW-4; facing south

Photo 6 View of SG-01; facing east
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 7 View of SG-02; facing east

Photo 8 View of SG-03; facing northwest
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 9 View of the southern bay of the garage; facing east

Photo 10 View of interior inground hydraulic lift
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 11 View of interior used oil reservoir; facing south

Photo 12 View of the floron injection machine; facing east
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 13 View of storage of oil filters and 1- to 5-quart engine coolant, engine oil, and brake fluid
containers; facing northeast

Photo 14 View of tools and parts work benches; facing southeast
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 15 View of 55-gallon drum of new oil; facing southwest

Photo 16 View of 300-gallon tank of new oil; facing southwest
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 17 View of air compressor; facing east

Photo 18 View of exterior used oil AST; facing northeast
Robert Coleman Exxon, Incident No. 15284 ■ Rockingham, North Carolina
Date Pictures Taken: November 26, 2019 ■ Terracon Project No. 70149661A

Responsive ■ Resourceful ■ Reliable

Photo 19 View of exterior used oil AST; facing northeast

APPENDIX B
LABORATORY ANALYTICAL RESULTS AND
CHAIN-OF-CUSTODY FORMS
SHEALY ENVIRONMENTAL SERVICES,INC.
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced,except in its entirety,without the written approval of Shealy Environmental Services,Inc.
Shealy Environmental Services,Inc.
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax [phone] www.shealylab.com
Report of Analysis
Terracon Consultants,Inc.
2401 Brentwood Road
Suite 107 I
Raleigh,NC 27604
Attention:Will Frazier
Project Name:Robert Coleman
Project Number:70149661A
Lot Number:UK26006
Date Completed:12/04/2019
12/04/2019 7:37 PM
Approved and released by:
Project Manager:Cathy S.Dover
Page 1 of 30
SHEALY ENVIRONMENTAL SERVICES,INC.
SC DHEC No:32010001 NELAC No:E87653 NC DENR No:329 NC Field Parameters No:5639
Shealy Environmental Services,Inc.
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax [phone] www.shealylab.com
Case Narrative
Terracon Consultants,Inc.
Lot Number:UK26006
This Report of Analysis contains the analytical result(s)for the sample(s)listed on the Sample Summary
following this Case Narrative.The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.
Sample receipt,sample analysis,and data review have been performed in accordance with the most
current approved NELAC standards,the Shealy Environmental Services,Inc.("Shealy")Quality
Assurance Management Plan (QAMP),standard operating procedures (SOPs),and Shealy policies.Any
exceptions to the NELAC standards,the QAMP,SOPs or policies are qualified on the results page or
discussed below.
If you have any questions regarding this report please contact the Shealy Project Manager listed on the
cover page.
Page 2 of 30
SHEALY ENVIRONMENTAL SERVICES, INC.
Sample Summary
Terracon Consultants, Inc.
Lot Number: UK26006

Project Name: Robert Coleman
Project Number: 70149661A
Sample Number Sample ID Matrix Date Sampled Date Received
001 11/25/2019 1230MW-1 Aqueous 11/26/2019
002 11/25/2019 1400MW-2 Aqueous 11/26/2019
003 11/25/2019 1305MW-3 Aqueous 11/26/2019
004 11/25/2019 1325MW-4 Aqueous 11/26/2019
005 11/25/2019 1345FB-01 Aqueous 11/26/2019
006 11/25/2019TB-01 Aqueous 11/26/2019
(6 samples)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 3 of 30
SHEALY ENVIRONMENTAL SERVICES, INC.
Detection Summary
Terracon Consultants, Inc.
Lot Number: UK26006

Project Name: Robert Coleman
Project Number: 70149661A
Sample Sample ID Matrix Parameter Method Result Q Units Page
001 MW-1 Aqueous Benzene SM 6200B-1.9 ug/L 5
001 MW-1 Aqueous Ethylbenzene SM 6200B-150 ug/L 5
001 MW-1 Aqueous Isopropylbenzene SM 6200B-26 ug/L 5
001 MW-1 Aqueous Naphthalene SM 6200B-140 ug/L 5
001 MW-1 Aqueous n-Propylbenzene SM 6200B-66 ug/L 5
001 MW-1 Aqueous Toluene SM 6200B-68 ug/L 6
001 MW-1 Aqueous 1,3,5-Trimethylbenzene SM 6200B-160 ug/L 6
001 MW-1 Aqueous 1,2,4-Trimethylbenzene SM 6200B-790 ug/L 6
001 MW-1 Aqueous m+p - Xylenes SM 6200B-270 ug/L 6
001 MW-1 Aqueous o - Xylenes SM 6200B-150 ug/L 6
002 MW-2 Aqueous n-Propylbenzene SM 6200B-0.47 J ug/L 7
003 MW-3 Aqueous Benzene SM 6200B-45 ug/L 9
003 MW-3 Aqueous n-Butylbenzene SM 6200B-24 ug/L 9
003 MW-3 Aqueous sec-Butylbenzene SM 6200B-8.7 ug/L 9
003 MW-3 Aqueous Ethylbenzene SM 6200B-1800 ug/L 9
003 MW-3 Aqueous Isopropylbenzene SM 6200B-77 ug/L 9
003 MW-3 Aqueous Naphthalene SM 6200B-200 ug/L 9
003 MW-3 Aqueous n-Propylbenzene SM 6200B-180 ug/L 9
003 MW-3 Aqueous Toluene SM 6200B-5.7 ug/L 10
003 MW-3 Aqueous 1,2,4-Trimethylbenzene SM 6200B-73 ug/L 10
003 MW-3 Aqueous m+p - Xylenes SM 6200B-390 ug/L 10
003 MW-3 Aqueous o - Xylenes SM 6200B-11 ug/L 10
004 MW-4 Aqueous Benzene SM 6200B-93 ug/L 11
004 MW-4 Aqueous sec-Butylbenzene SM 6200B-0.52 ug/L 11
004 MW-4 Aqueous Diisopropyl ether (IPE)SM 6200B-11 ug/L 11
004 MW-4 Aqueous Ethylbenzene SM 6200B-58 ug/L 11
004 MW-4 Aqueous Isopropylbenzene SM 6200B-4.2 ug/L 11
004 MW-4 Aqueous Methyl tertiary butyl ether SM 6200B-0.48 J ug/L 11
004 MW-4 Aqueous Naphthalene SM 6200B-23 ug/L 11
004 MW-4 Aqueous n-Propylbenzene SM 6200B-4.0 ug/L 11
004 MW-4 Aqueous Toluene SM 6200B-1.5 ug/L 12
004 MW-4 Aqueous 1,2,4-Trimethylbenzene SM 6200B-0.88 ug/L 12
004 MW-4 Aqueous m+p - Xylenes SM 6200B-4.1 ug/L 12
004 MW-4 Aqueous o - Xylenes SM 6200B-0.83 ug/L 12
(34 detections)
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 4 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-1
UK26006-001
11/25/2019 1230
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1308 JM1 37307
2 SM 6200B-SM 6200B-2011 20 12/03/2019 0435 JTH 37672
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Benzene 71-43-2 SM 6200B-1.9 1ug/L0.400.50
Bromobenzene 108-86-1 SM 6200B-ND 1ug/L0.400.50
Bromochloromethane 74-97-5 SM 6200B-ND 1ug/L0.400.50
Bromodichloromethane 75-27-4 SM 6200B-ND 1ug/L0.400.50
Bromoform 75-25-2 SM 6200B-ND 1ug/L0.400.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-ND 1ug/L0.400.50
n-Butylbenzene 104-51-8 SM 6200B-ND 1ug/L0.400.50
sec-Butylbenzene 135-98-8 SM 6200B-ND 1ug/L0.400.50
tert-Butylbenzene 98-06-6 SM 6200B-ND 1ug/L0.400.50
Carbon tetrachloride 56-23-5 SM 6200B-ND 1ug/L0.400.50
Chlorobenzene 108-90-7 SM 6200B-ND 1ug/L0.400.50
Chloroethane 75-00-3 SM 6200B-ND 1ug/L0.400.50
Chloroform 67-66-3 SM 6200B-ND 1ug/L0.400.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-ND 1ug/L0.400.50
2-Chlorotoluene 95-49-8 SM 6200B-ND 1ug/L0.400.50
4-Chlorotoluene 106-43-4 SM 6200B-ND 1ug/L0.400.50
Dibromochloromethane 124-48-1 SM 6200B-ND 1ug/L0.400.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-ND 1ug/L0.400.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-ND 1ug/L0.400.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-ND 1ug/L0.400.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-ND 1ug/L0.400.50
Dichlorodifluoromethane 75-71-8 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethane 75-34-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloroethane 107-06-2 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethene 75-35-4 SM 6200B-ND 1ug/L0.400.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-ND 1ug/L0.400.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloropropane 78-87-5 SM 6200B-ND 1ug/L0.400.50
1,3-Dichloropropane 142-28-9 SM 6200B-ND 1ug/L0.400.50
2,2-Dichloropropane 594-20-7 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloropropene 563-58-6 SM 6200B-ND 1ug/L0.400.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-ND 1ug/L0.400.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-ND 1ug/L0.400.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-ND 1ug/L0.400.50
Ethylbenzene 100-41-4 SM 6200B-150 1ug/L0.400.50
Hexachlorobutadiene 87-68-3 SM 6200B-ND 1ug/L0.400.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-26 1ug/L0.400.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-ND 1ug/L0.400.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-ND 1ug/L0.400.50
Methylene chloride 75-09-2 SM 6200B-ND 1ug/L0.400.50
Naphthalene 91-20-3 SM 6200B-140 2ug/L8.010
n-Propylbenzene 103-65-1 SM 6200B-66 1ug/L0.400.50
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 5 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-1
UK26006-001
11/25/2019 1230
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1308 JM1 37307
2 SM 6200B-SM 6200B-2011 20 12/03/2019 0435 JTH 37672
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Styrene 100-42-5 SM 6200B-ND 1ug/L0.400.50
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-ND 1ug/L0.400.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-ND 1ug/L0.400.50
Tetrachloroethene 127-18-4 SM 6200B-ND 1ug/L0.400.50
Toluene 108-88-3 SM 6200B-68 1ug/L0.400.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-ND 1ug/L0.400.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-ND 1ug/L0.400.50
Trichloroethene 79-01-6 SM 6200B-ND 1ug/L0.400.50
Trichlorofluoromethane 75-69-4 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-ND 1ug/L0.400.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-160 1ug/L0.400.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-790 2ug/L8.010
Vinyl chloride 75-01-4 SM 6200B-ND 1ug/L0.400.50
m+p - Xylenes 179601-23-1 SM 6200B-270 2ug/L8.010
o - Xylenes 95-47-6 SM 6200B-150 2ug/L8.010
AcceptanceAcceptanceRun 2Run 1
Surrogate Q % Recovery Limits % Recovery LimitsQ
1,2-Dichloroethane-d4 85 70-130 102 70-130
Bromofluorobenzene 99 70-130 83 70-130
Toluene-d8 98 70-130 99 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 6 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-2
UK26006-002
11/25/2019 1400
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1330 JM1 37307
2 SM 6200B-SM 6200B-2011 1 12/03/2019 0033 JTH 37672
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Benzene 71-43-2 SM 6200B-ND 1ug/L0.400.50
Bromobenzene 108-86-1 SM 6200B-ND 1ug/L0.400.50
Bromochloromethane 74-97-5 SM 6200B-ND 1ug/L0.400.50
Bromodichloromethane 75-27-4 SM 6200B-ND 1ug/L0.400.50
Bromoform 75-25-2 SM 6200B-ND 1ug/L0.400.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-ND 1ug/L0.400.50
n-Butylbenzene 104-51-8 SM 6200B-ND 1ug/L0.400.50
sec-Butylbenzene 135-98-8 SM 6200B-ND 1ug/L0.400.50
tert-Butylbenzene 98-06-6 SM 6200B-ND 1ug/L0.400.50
Carbon tetrachloride 56-23-5 SM 6200B-ND 1ug/L0.400.50
Chlorobenzene 108-90-7 SM 6200B-ND 1ug/L0.400.50
Chloroethane 75-00-3 SM 6200B-ND 1ug/L0.400.50
Chloroform 67-66-3 SM 6200B-ND 1ug/L0.400.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-ND 1ug/L0.400.50
2-Chlorotoluene 95-49-8 SM 6200B-ND 1ug/L0.400.50
4-Chlorotoluene 106-43-4 SM 6200B-ND 1ug/L0.400.50
Dibromochloromethane 124-48-1 SM 6200B-ND 1ug/L0.400.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-ND 1ug/L0.400.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-ND 1ug/L0.400.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-ND 1ug/L0.400.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-ND 1ug/L0.400.50
Dichlorodifluoromethane 75-71-8 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethane 75-34-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloroethane 107-06-2 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethene 75-35-4 SM 6200B-ND 1ug/L0.400.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-ND 1ug/L0.400.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloropropane 78-87-5 SM 6200B-ND 1ug/L0.400.50
1,3-Dichloropropane 142-28-9 SM 6200B-ND 1ug/L0.400.50
2,2-Dichloropropane 594-20-7 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloropropene 563-58-6 SM 6200B-ND 1ug/L0.400.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-ND 1ug/L0.400.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-ND 1ug/L0.400.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-ND 1ug/L0.400.50
Ethylbenzene 100-41-4 SM 6200B-ND 2ug/L0.400.50
Hexachlorobutadiene 87-68-3 SM 6200B-ND 1ug/L0.400.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-ND 1ug/L0.400.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-ND 1ug/L0.400.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-ND 1ug/L0.400.50
Methylene chloride 75-09-2 SM 6200B-ND 1ug/L0.400.50
Naphthalene 91-20-3 SM 6200B-ND 2ug/L0.400.50
n-Propylbenzene 103-65-1 SM 6200B-0.47 J 1ug/L0.400.50
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 7 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-2
UK26006-002
11/25/2019 1400
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1330 JM1 37307
2 SM 6200B-SM 6200B-2011 1 12/03/2019 0033 JTH 37672
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Styrene 100-42-5 SM 6200B-ND 1ug/L0.400.50
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-ND 1ug/L0.400.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-ND 1ug/L0.400.50
Tetrachloroethene 127-18-4 SM 6200B-ND 1ug/L0.400.50
Toluene 108-88-3 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-ND 1ug/L0.400.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-ND 1ug/L0.400.50
Trichloroethene 79-01-6 SM 6200B-ND 1ug/L0.400.50
Trichlorofluoromethane 75-69-4 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-ND 1ug/L0.400.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-ND 2ug/L0.400.50
Vinyl chloride 75-01-4 SM 6200B-ND 1ug/L0.400.50
m+p - Xylenes 179601-23-1 SM 6200B-ND 2ug/L0.400.50
o - Xylenes 95-47-6 SM 6200B-ND 1ug/L0.400.50
AcceptanceAcceptanceRun 2Run 1
Surrogate Q % Recovery Limits % Recovery LimitsQ
1,2-Dichloroethane-d4 85 70-130 107 70-130
Bromofluorobenzene 95 70-130 86 70-130
Toluene-d8 97 70-130 99 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 8 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-3
UK26006-003
11/25/2019 1305
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 10 11/27/2019 1710 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Benzene 71-43-2 SM 6200B-45 1ug/L4.05.0
Bromobenzene 108-86-1 SM 6200B-ND 1ug/L4.05.0
Bromochloromethane 74-97-5 SM 6200B-ND 1ug/L4.05.0
Bromodichloromethane 75-27-4 SM 6200B-ND 1ug/L4.05.0
Bromoform 75-25-2 SM 6200B-ND 1ug/L4.05.0
Bromomethane (Methyl bromide)74-83-9 SM 6200B-ND 1ug/L4.05.0
n-Butylbenzene 104-51-8 SM 6200B-24 1ug/L4.05.0
sec-Butylbenzene 135-98-8 SM 6200B-8.7 1ug/L4.05.0
tert-Butylbenzene 98-06-6 SM 6200B-ND 1ug/L4.05.0
Carbon tetrachloride 56-23-5 SM 6200B-ND 1ug/L4.05.0
Chlorobenzene 108-90-7 SM 6200B-ND 1ug/L4.05.0
Chloroethane 75-00-3 SM 6200B-ND 1ug/L4.05.0
Chloroform 67-66-3 SM 6200B-ND 1ug/L4.05.0
Chloromethane (Methyl chloride)74-87-3 SM 6200B-ND 1ug/L4.05.0
2-Chlorotoluene 95-49-8 SM 6200B-ND 1ug/L4.05.0
4-Chlorotoluene 106-43-4 SM 6200B-ND 1ug/L4.05.0
Dibromochloromethane 124-48-1 SM 6200B-ND 1ug/L4.05.0
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-ND 1ug/L4.05.0
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-ND 1ug/L4.05.0
1,2-Dichlorobenzene 95-50-1 SM 6200B-ND 1ug/L4.05.0
1,3-Dichlorobenzene 541-73-1 SM 6200B-ND 1ug/L4.05.0
1,4-Dichlorobenzene 106-46-7 SM 6200B-ND 1ug/L4.05.0
Dichlorodifluoromethane 75-71-8 SM 6200B-ND 1ug/L4.05.0
1,1-Dichloroethane 75-34-3 SM 6200B-ND 1ug/L4.05.0
1,2-Dichloroethane 107-06-2 SM 6200B-ND 1ug/L4.05.0
1,1-Dichloroethene 75-35-4 SM 6200B-ND 1ug/L4.05.0
cis-1,2-Dichloroethene 156-59-2 SM 6200B-ND 1ug/L4.05.0
trans-1,2-Dichloroethene 156-60-5 SM 6200B-ND 1ug/L4.05.0
1,2-Dichloropropane 78-87-5 SM 6200B-ND 1ug/L4.05.0
1,3-Dichloropropane 142-28-9 SM 6200B-ND 1ug/L4.05.0
2,2-Dichloropropane 594-20-7 SM 6200B-ND 1ug/L4.05.0
1,1-Dichloropropene 563-58-6 SM 6200B-ND 1ug/L4.05.0
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-ND 1ug/L4.05.0
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-ND 1ug/L4.05.0
Diisopropyl ether (IPE)108-20-3 SM 6200B-ND 1ug/L4.05.0
Ethylbenzene 100-41-4 SM 6200B-1800 1ug/L4.05.0
Hexachlorobutadiene 87-68-3 SM 6200B-ND 1ug/L4.05.0
Isopropylbenzene (Cumene)98-82-8 SM 6200B-77 1ug/L4.05.0
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-ND 1ug/L4.05.0
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-ND 1ug/L4.05.0
Methylene chloride 75-09-2 SM 6200B-ND 1ug/L4.05.0
Naphthalene 91-20-3 SM 6200B-200 1ug/L4.05.0
n-Propylbenzene 103-65-1 SM 6200B-180 1ug/L4.05.0
Styrene 100-42-5 SM 6200B-ND 1ug/L4.05.0
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 9 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-3
UK26006-003
11/25/2019 1305
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 10 11/27/2019 1710 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-ND 1ug/L4.05.0
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-ND 1ug/L4.05.0
Tetrachloroethene 127-18-4 SM 6200B-ND 1ug/L4.05.0
Toluene 108-88-3 SM 6200B-5.7 1ug/L4.05.0
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-ND 1ug/L4.05.0
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-ND 1ug/L4.05.0
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-ND 1ug/L4.05.0
1,1,1-Trichloroethane 71-55-6 SM 6200B-ND 1ug/L4.05.0
1,1,2-Trichloroethane 79-00-5 SM 6200B-ND 1ug/L4.05.0
Trichloroethene 79-01-6 SM 6200B-ND 1ug/L4.05.0
Trichlorofluoromethane 75-69-4 SM 6200B-ND 1ug/L4.05.0
1,2,3-Trichloropropane 96-18-4 SM 6200B-ND 1ug/L4.05.0
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-ND 1ug/L4.05.0
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-73 1ug/L4.05.0
Vinyl chloride 75-01-4 SM 6200B-ND 1ug/L4.05.0
m+p - Xylenes 179601-23-1 SM 6200B-390 1ug/L4.05.0
o - Xylenes 95-47-6 SM 6200B-11 1ug/L4.05.0
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 84 70-130
Bromofluorobenzene 96 70-130
Toluene-d8 96 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 10 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-4
UK26006-004
11/25/2019 1325
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1352 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Benzene 71-43-2 SM 6200B-93 1ug/L0.400.50
Bromobenzene 108-86-1 SM 6200B-ND 1ug/L0.400.50
Bromochloromethane 74-97-5 SM 6200B-ND 1ug/L0.400.50
Bromodichloromethane 75-27-4 SM 6200B-ND 1ug/L0.400.50
Bromoform 75-25-2 SM 6200B-ND 1ug/L0.400.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-ND 1ug/L0.400.50
n-Butylbenzene 104-51-8 SM 6200B-ND 1ug/L0.400.50
sec-Butylbenzene 135-98-8 SM 6200B-0.52 1ug/L0.400.50
tert-Butylbenzene 98-06-6 SM 6200B-ND 1ug/L0.400.50
Carbon tetrachloride 56-23-5 SM 6200B-ND 1ug/L0.400.50
Chlorobenzene 108-90-7 SM 6200B-ND 1ug/L0.400.50
Chloroethane 75-00-3 SM 6200B-ND 1ug/L0.400.50
Chloroform 67-66-3 SM 6200B-ND 1ug/L0.400.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-ND 1ug/L0.400.50
2-Chlorotoluene 95-49-8 SM 6200B-ND 1ug/L0.400.50
4-Chlorotoluene 106-43-4 SM 6200B-ND 1ug/L0.400.50
Dibromochloromethane 124-48-1 SM 6200B-ND 1ug/L0.400.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-ND 1ug/L0.400.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-ND 1ug/L0.400.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-ND 1ug/L0.400.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-ND 1ug/L0.400.50
Dichlorodifluoromethane 75-71-8 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethane 75-34-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloroethane 107-06-2 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethene 75-35-4 SM 6200B-ND 1ug/L0.400.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-ND 1ug/L0.400.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloropropane 78-87-5 SM 6200B-ND 1ug/L0.400.50
1,3-Dichloropropane 142-28-9 SM 6200B-ND 1ug/L0.400.50
2,2-Dichloropropane 594-20-7 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloropropene 563-58-6 SM 6200B-ND 1ug/L0.400.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-ND 1ug/L0.400.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-ND 1ug/L0.400.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-11 1ug/L0.400.50
Ethylbenzene 100-41-4 SM 6200B-58 1ug/L0.400.50
Hexachlorobutadiene 87-68-3 SM 6200B-ND 1ug/L0.400.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-4.2 1ug/L0.400.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-ND 1ug/L0.400.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-0.48 J 1ug/L0.400.50
Methylene chloride 75-09-2 SM 6200B-ND 1ug/L0.400.50
Naphthalene 91-20-3 SM 6200B-23 1ug/L0.400.50
n-Propylbenzene 103-65-1 SM 6200B-4.0 1ug/L0.400.50
Styrene 100-42-5 SM 6200B-ND 1ug/L0.400.50
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 11 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
MW-4
UK26006-004
11/25/2019 1325
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1352 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-ND 1ug/L0.400.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-ND 1ug/L0.400.50
Tetrachloroethene 127-18-4 SM 6200B-ND 1ug/L0.400.50
Toluene 108-88-3 SM 6200B-1.5 1ug/L0.400.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-ND 1ug/L0.400.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-ND 1ug/L0.400.50
Trichloroethene 79-01-6 SM 6200B-ND 1ug/L0.400.50
Trichlorofluoromethane 75-69-4 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-ND 1ug/L0.400.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-0.88 1ug/L0.400.50
Vinyl chloride 75-01-4 SM 6200B-ND 1ug/L0.400.50
m+p - Xylenes 179601-23-1 SM 6200B-4.1 1ug/L0.400.50
o - Xylenes 95-47-6 SM 6200B-0.83 1ug/L0.400.50
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 88 70-130
Bromofluorobenzene 97 70-130
Toluene-d8 98 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 12 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
FB-01
UK26006-005
11/25/2019 1345
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1203 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Benzene 71-43-2 SM 6200B-ND 1ug/L0.400.50
Bromobenzene 108-86-1 SM 6200B-ND 1ug/L0.400.50
Bromochloromethane 74-97-5 SM 6200B-ND 1ug/L0.400.50
Bromodichloromethane 75-27-4 SM 6200B-ND 1ug/L0.400.50
Bromoform 75-25-2 SM 6200B-ND 1ug/L0.400.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-ND 1ug/L0.400.50
n-Butylbenzene 104-51-8 SM 6200B-ND 1ug/L0.400.50
sec-Butylbenzene 135-98-8 SM 6200B-ND 1ug/L0.400.50
tert-Butylbenzene 98-06-6 SM 6200B-ND 1ug/L0.400.50
Carbon tetrachloride 56-23-5 SM 6200B-ND 1ug/L0.400.50
Chlorobenzene 108-90-7 SM 6200B-ND 1ug/L0.400.50
Chloroethane 75-00-3 SM 6200B-ND 1ug/L0.400.50
Chloroform 67-66-3 SM 6200B-ND 1ug/L0.400.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-ND 1ug/L0.400.50
2-Chlorotoluene 95-49-8 SM 6200B-ND 1ug/L0.400.50
4-Chlorotoluene 106-43-4 SM 6200B-ND 1ug/L0.400.50
Dibromochloromethane 124-48-1 SM 6200B-ND 1ug/L0.400.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-ND 1ug/L0.400.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-ND 1ug/L0.400.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-ND 1ug/L0.400.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-ND 1ug/L0.400.50
Dichlorodifluoromethane 75-71-8 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethane 75-34-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloroethane 107-06-2 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethene 75-35-4 SM 6200B-ND 1ug/L0.400.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-ND 1ug/L0.400.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloropropane 78-87-5 SM 6200B-ND 1ug/L0.400.50
1,3-Dichloropropane 142-28-9 SM 6200B-ND 1ug/L0.400.50
2,2-Dichloropropane 594-20-7 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloropropene 563-58-6 SM 6200B-ND 1ug/L0.400.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-ND 1ug/L0.400.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-ND 1ug/L0.400.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-ND 1ug/L0.400.50
Ethylbenzene 100-41-4 SM 6200B-ND 1ug/L0.400.50
Hexachlorobutadiene 87-68-3 SM 6200B-ND 1ug/L0.400.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-ND 1ug/L0.400.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-ND 1ug/L0.400.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-ND 1ug/L0.400.50
Methylene chloride 75-09-2 SM 6200B-ND 1ug/L0.400.50
Naphthalene 91-20-3 SM 6200B-ND 1ug/L0.400.50
n-Propylbenzene 103-65-1 SM 6200B-ND 1ug/L0.400.50
Styrene 100-42-5 SM 6200B-ND 1ug/L0.400.50
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 13 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
FB-01
UK26006-005
11/25/2019 1345
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1203 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-ND 1ug/L0.400.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-ND 1ug/L0.400.50
Tetrachloroethene 127-18-4 SM 6200B-ND 1ug/L0.400.50
Toluene 108-88-3 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-ND 1ug/L0.400.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-ND 1ug/L0.400.50
Trichloroethene 79-01-6 SM 6200B-ND 1ug/L0.400.50
Trichlorofluoromethane 75-69-4 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-ND 1ug/L0.400.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-ND 1ug/L0.400.50
Vinyl chloride 75-01-4 SM 6200B-ND 1ug/L0.400.50
m+p - Xylenes 179601-23-1 SM 6200B-ND 1ug/L0.400.50
o - Xylenes 95-47-6 SM 6200B-ND 1ug/L0.400.50
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 87 70-130
Bromofluorobenzene 92 70-130
Toluene-d8 95 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 14 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
TB-01
UK26006-006
11/25/2019
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1224 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
Benzene 71-43-2 SM 6200B-ND 1ug/L0.400.50
Bromobenzene 108-86-1 SM 6200B-ND 1ug/L0.400.50
Bromochloromethane 74-97-5 SM 6200B-ND 1ug/L0.400.50
Bromodichloromethane 75-27-4 SM 6200B-ND 1ug/L0.400.50
Bromoform 75-25-2 SM 6200B-ND 1ug/L0.400.50
Bromomethane (Methyl bromide)74-83-9 SM 6200B-ND 1ug/L0.400.50
n-Butylbenzene 104-51-8 SM 6200B-ND 1ug/L0.400.50
sec-Butylbenzene 135-98-8 SM 6200B-ND 1ug/L0.400.50
tert-Butylbenzene 98-06-6 SM 6200B-ND 1ug/L0.400.50
Carbon tetrachloride 56-23-5 SM 6200B-ND 1ug/L0.400.50
Chlorobenzene 108-90-7 SM 6200B-ND 1ug/L0.400.50
Chloroethane 75-00-3 SM 6200B-ND 1ug/L0.400.50
Chloroform 67-66-3 SM 6200B-ND 1ug/L0.400.50
Chloromethane (Methyl chloride)74-87-3 SM 6200B-ND 1ug/L0.400.50
2-Chlorotoluene 95-49-8 SM 6200B-ND 1ug/L0.400.50
4-Chlorotoluene 106-43-4 SM 6200B-ND 1ug/L0.400.50
Dibromochloromethane 124-48-1 SM 6200B-ND 1ug/L0.400.50
1,2-Dibromoethane (EDB)106-93-4 SM 6200B-ND 1ug/L0.400.50
Dibromomethane (Methylene bromide)74-95-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichlorobenzene 95-50-1 SM 6200B-ND 1ug/L0.400.50
1,3-Dichlorobenzene 541-73-1 SM 6200B-ND 1ug/L0.400.50
1,4-Dichlorobenzene 106-46-7 SM 6200B-ND 1ug/L0.400.50
Dichlorodifluoromethane 75-71-8 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethane 75-34-3 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloroethane 107-06-2 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloroethene 75-35-4 SM 6200B-ND 1ug/L0.400.50
cis-1,2-Dichloroethene 156-59-2 SM 6200B-ND 1ug/L0.400.50
trans-1,2-Dichloroethene 156-60-5 SM 6200B-ND 1ug/L0.400.50
1,2-Dichloropropane 78-87-5 SM 6200B-ND 1ug/L0.400.50
1,3-Dichloropropane 142-28-9 SM 6200B-ND 1ug/L0.400.50
2,2-Dichloropropane 594-20-7 SM 6200B-ND 1ug/L0.400.50
1,1-Dichloropropene 563-58-6 SM 6200B-ND 1ug/L0.400.50
cis-1,3-Dichloropropene 10061-01-5 SM 6200B-ND 1ug/L0.400.50
trans-1,3-Dichloropropene 10061-02-6 SM 6200B-ND 1ug/L0.400.50
Diisopropyl ether (IPE)108-20-3 SM 6200B-ND 1ug/L0.400.50
Ethylbenzene 100-41-4 SM 6200B-ND 1ug/L0.400.50
Hexachlorobutadiene 87-68-3 SM 6200B-ND 1ug/L0.400.50
Isopropylbenzene (Cumene)98-82-8 SM 6200B-ND 1ug/L0.400.50
p-Isopropyltoluene (p-Cymene)99-87-6 SM 6200B-ND 1ug/L0.400.50
Methyl tertiary butyl ether (MTBE)1634-04-4 SM 6200B-ND 1ug/L0.400.50
Methylene chloride 75-09-2 SM 6200B-ND 1ug/L0.400.50
Naphthalene 91-20-3 SM 6200B-ND 1ug/L0.400.50
n-Propylbenzene 103-65-1 SM 6200B-ND 1ug/L0.400.50
Styrene 100-42-5 SM 6200B-ND 1ug/L0.400.50
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 15 of 30
Volatile Organic Compounds by GC/MS
Description:Matrix:
Date Received:
Client:Laboratory ID:
Date Sampled:
Terracon Consultants, Inc.
TB-01
UK26006-006
11/25/2019
11/26/2019
Aqueous
Project Name: Robert Coleman
Project Number: 70149661A
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 SM 6200B-SM 6200B-2011 1 11/27/2019 1224 JM1 37307
AnalyticalCAS
Parameter Number Method Result Q LOQ Units Run DL
1,1,1,2-Tetrachloroethane 630-20-6 SM 6200B-ND 1ug/L0.400.50
1,1,2,2-Tetrachloroethane 79-34-5 SM 6200B-ND 1ug/L0.400.50
Tetrachloroethene 127-18-4 SM 6200B-ND 1ug/L0.400.50
Toluene 108-88-3 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloro-1,2,2-Trifluoroethane 76-13-1 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichlorobenzene 87-61-6 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trichlorobenzene 120-82-1 SM 6200B-ND 1ug/L0.400.50
1,1,1-Trichloroethane 71-55-6 SM 6200B-ND 1ug/L0.400.50
1,1,2-Trichloroethane 79-00-5 SM 6200B-ND 1ug/L0.400.50
Trichloroethene 79-01-6 SM 6200B-ND 1ug/L0.400.50
Trichlorofluoromethane 75-69-4 SM 6200B-ND 1ug/L0.400.50
1,2,3-Trichloropropane 96-18-4 SM 6200B-ND 1ug/L0.400.50
1,3,5-Trimethylbenzene (Mesitylene)108-67-8 SM 6200B-ND 1ug/L0.400.50
1,2,4-Trimethylbenzene 95-63-6 SM 6200B-ND 1ug/L0.400.50
Vinyl chloride 75-01-4 SM 6200B-ND 1ug/L0.400.50
m+p - Xylenes 179601-23-1 SM 6200B-ND 1ug/L0.400.50
o - Xylenes 95-47-6 SM 6200B-ND 1ug/L0.400.50
AcceptanceRun 1
Surrogate Q % Recovery Limits
1,2-Dichloroethane-d4 88 70-130
Bromofluorobenzene 94 70-130
Toluene-d8 97 70-130
J = Estimated result < LOQ and > DL_
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range
P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria
H = Out of holding time
DL = Detection Limit
W = Reported on wet weight basis
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 16 of 30
QC Summary
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 17 of 30
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:UQ37307-001
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
Benzene ND 11/27/2019 10300.50 0.40 ug/L1
Bromobenzene ND 11/27/2019 10300.50 0.40 ug/L1
Bromochloromethane ND 11/27/2019 10300.50 0.40 ug/L1
Bromodichloromethane ND 11/27/2019 10300.50 0.40 ug/L1
Bromoform ND 11/27/2019 10300.50 0.40 ug/L1
Bromomethane (Methyl bromide)ND 11/27/2019 10300.50 0.40 ug/L1
n-Butylbenzene ND 11/27/2019 10300.50 0.40 ug/L1
sec-Butylbenzene ND 11/27/2019 10300.50 0.40 ug/L1
tert-Butylbenzene ND 11/27/2019 10300.50 0.40 ug/L1
Carbon tetrachloride ND 11/27/2019 10300.50 0.40 ug/L1
Chlorobenzene ND 11/27/2019 10300.50 0.40 ug/L1
Chloroethane ND 11/27/2019 10300.50 0.40 ug/L1
Chloroform ND 11/27/2019 10300.50 0.40 ug/L1
Chloromethane (Methyl chloride)ND 11/27/2019 10300.50 0.40 ug/L1
2-Chlorotoluene ND 11/27/2019 10300.50 0.40 ug/L1
4-Chlorotoluene ND 11/27/2019 10300.50 0.40 ug/L1
Dibromochloromethane ND 11/27/2019 10300.50 0.40 ug/L1
1,2-Dibromoethane (EDB)ND 11/27/2019 10300.50 0.40 ug/L1
Dibromomethane (Methylene bromide)ND 11/27/2019 10300.50 0.40 ug/L1
1,2-Dichlorobenzene ND 11/27/2019 10300.50 0.40 ug/L1
1,3-Dichlorobenzene ND 11/27/2019 10300.50 0.40 ug/L1
1,4-Dichlorobenzene ND 11/27/2019 10300.50 0.40 ug/L1
Dichlorodifluoromethane ND 11/27/2019 10300.50 0.40 ug/L1
1,1-Dichloroethane ND 11/27/2019 10300.50 0.40 ug/L1
1,2-Dichloroethane ND 11/27/2019 10300.50 0.40 ug/L1
1,1-Dichloroethene ND 11/27/2019 10300.50 0.40 ug/L1
cis-1,2-Dichloroethene ND 11/27/2019 10300.50 0.40 ug/L1
trans-1,2-Dichloroethene ND 11/27/2019 10300.50 0.40 ug/L1
1,2-Dichloropropane ND 11/27/2019 10300.50 0.40 ug/L1
1,3-Dichloropropane ND 11/27/2019 10300.50 0.40 ug/L1
2,2-Dichloropropane ND 11/27/2019 10300.50 0.40 ug/L1
1,1-Dichloropropene ND 11/27/2019 10300.50 0.40 ug/L1
cis-1,3-Dichloropropene ND 11/27/2019 10300.50 0.40 ug/L1
trans-1,3-Dichloropropene ND 11/27/2019 10300.50 0.40 ug/L1
Diisopropyl ether (IPE)ND 11/27/2019 10300.50 0.40 ug/L1
Ethylbenzene ND 11/27/2019 10300.50 0.40 ug/L1
Hexachlorobutadiene ND 11/27/2019 10300.50 0.40 ug/L1
Isopropylbenzene (Cumene)ND 11/27/2019 10300.50 0.40 ug/L1
p-Isopropyltoluene (p-Cymene)ND 11/27/2019 10300.50 0.40 ug/L1
Methyl tertiary butyl ether (MTBE)ND 11/27/2019 10300.50 0.40 ug/L1
Methylene chloride ND 11/27/2019 10300.50 0.40 ug/L1
Naphthalene ND 11/27/2019 10300.50 0.40 ug/L1
n-Propylbenzene ND 11/27/2019 10300.50 0.40 ug/L1
Styrene ND 11/27/2019 10300.50 0.40 ug/L1
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 18 of 30
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:UQ37307-001
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
1,1,1,2-Tetrachloroethane ND 11/27/2019 10300.50 0.40 ug/L1
1,1,2,2-Tetrachloroethane ND 11/27/2019 10300.50 0.40 ug/L1
Tetrachloroethene ND 11/27/2019 10300.50 0.40 ug/L1
Toluene ND 11/27/2019 10300.50 0.40 ug/L1
1,1,2-Trichloro-1,2,2-Trifluoroethane ND 11/27/2019 10300.50 0.40 ug/L1
1,2,3-Trichlorobenzene ND 11/27/2019 10300.50 0.40 ug/L1
1,2,4-Trichlorobenzene ND 11/27/2019 10300.50 0.40 ug/L1
1,1,1-Trichloroethane ND 11/27/2019 10300.50 0.40 ug/L1
1,1,2-Trichloroethane ND 11/27/2019 10300.50 0.40 ug/L1
Trichloroethene ND 11/27/2019 10300.50 0.40 ug/L1
Trichlorofluoromethane ND 11/27/2019 10300.50 0.40 ug/L1
1,2,3-Trichloropropane ND 11/27/2019 10300.50 0.40 ug/L1
1,3,5-Trimethylbenzene (Mesitylene)ND 11/27/2019 10300.50 0.40 ug/L1
1,2,4-Trimethylbenzene ND 11/27/2019 10300.50 0.40 ug/L1
Vinyl chloride ND 11/27/2019 10300.50 0.40 ug/L1
m+p - Xylenes ND 11/27/2019 10300.50 0.40 ug/L1
o - Xylenes ND 11/27/2019 10300.50 0.40 ug/L1
Surrogate Q % Rec Acceptance
Limit
1,2-Dichloroethane-d4 89 70-130
Bromofluorobenzene 95 70-130
Toluene-d8 97 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 19 of 30
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:UQ37307-002
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
LimitDil(ug/L)(ug/L)
Benzene 48 11/27/2019 0925965070-1301
Bromobenzene 49 11/27/2019 0925995070-1301
Bromochloromethane 48 11/27/2019 0925955070-1301
Bromodichloromethane 47 11/27/2019 0925945070-1301
Bromoform 56 11/27/2019 09251125070-1301
Bromomethane (Methyl bromide)51 11/27/2019 09251015060-1401
n-Butylbenzene 48 11/27/2019 0925965070-1301
sec-Butylbenzene 49 11/27/2019 0925995070-1301
tert-Butylbenzene 50 11/27/2019 09251005070-1301
Carbon tetrachloride 45 11/27/2019 0925905070-1301
Chlorobenzene 49 11/27/2019 0925985070-1301
Chloroethane 53 11/27/2019 09251055042-1631
Chloroform 45 11/27/2019 0925905070-1301
Chloromethane (Methyl chloride)49 11/27/2019 0925985020-1581
2-Chlorotoluene 46 11/27/2019 0925915070-1301
4-Chlorotoluene 48 11/27/2019 0925955070-1301
Dibromochloromethane 51 11/27/2019 09251025070-1301
1,2-Dibromoethane (EDB)49 11/27/2019 0925985070-1301
Dibromomethane (Methylene bromide)48 11/27/2019 0925965070-1301
1,2-Dichlorobenzene 48 11/27/2019 0925965070-1301
1,3-Dichlorobenzene 48 11/27/2019 0925965070-1301
1,4-Dichlorobenzene 45 11/27/2019 0925915070-1301
Dichlorodifluoromethane 40 11/27/2019 0925795060-1401
1,1-Dichloroethane 46 11/27/2019 0925925070-1301
1,2-Dichloroethane 46 11/27/2019 0925935070-1301
1,1-Dichloroethene 42 11/27/2019 0925845070-1301
cis-1,2-Dichloroethene 45 11/27/2019 0925905070-1301
trans-1,2-Dichloroethene 44 11/27/2019 0925885070-1301
1,2-Dichloropropane 48 11/27/2019 0925955070-1301
1,3-Dichloropropane 47 11/27/2019 0925955070-1301
2,2-Dichloropropane 49 11/27/2019 0925985070-1301
1,1-Dichloropropene 43 11/27/2019 0925865070-1301
cis-1,3-Dichloropropene 47 11/27/2019 0925935070-1301
trans-1,3-Dichloropropene 48 11/27/2019 0925975070-1301
Diisopropyl ether (IPE)45 11/27/2019 0925915070-1301
Ethylbenzene 48 11/27/2019 0925975070-1301
Hexachlorobutadiene 50 11/27/2019 09251005070-1301
Isopropylbenzene (Cumene)53 11/27/2019 09251055070-1301
p-Isopropyltoluene (p-Cymene)49 11/27/2019 0925985070-1301
Methyl tertiary butyl ether (MTBE)43 11/27/2019 0925855070-1301
Methylene chloride 43 11/27/2019 0925855070-1301
Naphthalene 49 11/27/2019 0925995050-1401
n-Propylbenzene 49 11/27/2019 0925985070-1301
Styrene 51 11/27/2019 09251015070-1301
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 20 of 30
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:UQ37307-002
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
LimitDil(ug/L)(ug/L)
1,1,1,2-Tetrachloroethane 54 11/27/2019 09251075070-1301
1,1,2,2-Tetrachloroethane 52 11/27/2019 09251035070-1301
Tetrachloroethene 49 11/27/2019 0925995070-1301
Toluene 48 11/27/2019 0925965070-1301
1,1,2-Trichloro-1,2,2-Trifluoroethane 40 11/27/2019 0925805070-1301
1,2,3-Trichlorobenzene 51 11/27/2019 09251025070-1301
1,2,4-Trichlorobenzene 49 11/27/2019 0925985070-1301
1,1,1-Trichloroethane 43 11/27/2019 0925875070-1301
1,1,2-Trichloroethane 50 11/27/2019 09251015070-1301
Trichloroethene 48 11/27/2019 0925955070-1301
Trichlorofluoromethane 42 11/27/2019 0925835060-1401
1,2,3-Trichloropropane 46 11/27/2019 0925925070-1301
1,3,5-Trimethylbenzene (Mesitylene)48 11/27/2019 0925975070-1301
1,2,4-Trimethylbenzene 48 11/27/2019 0925975070-1301
Vinyl chloride 47 11/27/2019 0925955060-1401
m+p - Xylenes 50 11/27/2019 09251005070-1301
o - Xylenes 50 11/27/2019 09251005070-1301
Surrogate Q % Rec Acceptance
Limit
1,2-Dichloroethane-d4 84 70-130
Bromofluorobenzene 93 70-130
Toluene-d8 92 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 21 of 30
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:UK26006-003MS
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Benzene 510 11/27/2019 18199350070-1304510
Bromobenzene 480 11/27/2019 18199650070-130ND10
Bromochloromethane 440 11/27/2019 18198750070-130ND10
Bromodichloromethane 450 11/27/2019 18199050070-130ND10
Bromoform 510 11/27/2019 181910150070-130ND10
Bromomethane (Methyl bromide)520 11/27/2019 181910450060-140ND10
n-Butylbenzene 470 11/27/2019 18198950070-1302410
sec-Butylbenzene 470 11/27/2019 18199250070-1308.7 10
tert-Butylbenzene 480 11/27/2019 18199650070-130ND10
Carbon tetrachloride 470 11/27/2019 18199350070-130ND10
Chlorobenzene 470 11/27/2019 18199450070-130ND10
Chloroethane 610 11/27/2019 181912250042-163ND10
Chloroform 440 11/27/2019 18198850070-130ND10
Chloromethane (Methyl chloride)520 11/27/2019 181910450020-158ND10
2-Chlorotoluene 460 11/27/2019 18199150070-130ND10
4-Chlorotoluene 450 11/27/2019 18199150070-130ND10
Dibromochloromethane 470 11/27/2019 18199550070-130ND10
1,2-Dibromoethane (EDB)460 11/27/2019 18199150070-130ND10
Dibromomethane (Methylene bromide)440 11/27/2019 18198850070-130ND10
1,2-Dichlorobenzene 450 11/27/2019 18199150070-130ND10
1,3-Dichlorobenzene 450 11/27/2019 18199050070-130ND10
1,4-Dichlorobenzene 430 11/27/2019 18198650070-130ND10
Dichlorodifluoromethane 520 11/27/2019 181910350060-140ND10
1,1-Dichloroethane 450 11/27/2019 18198950070-130ND10
1,2-Dichloroethane 430 11/27/2019 18198650070-130ND10
1,1-Dichloroethene 480 11/27/2019 18199750070-130ND10
cis-1,2-Dichloroethene 440 11/27/2019 18198850070-130ND10
trans-1,2-Dichloroethene 460 11/27/2019 18199350070-130ND10
1,2-Dichloropropane 460 11/27/2019 18199250070-130ND10
1,3-Dichloropropane 460 11/27/2019 18199150070-130ND10
2,2-Dichloropropane 450 11/27/2019 18199050070-130ND10
1,1-Dichloropropene 450 11/27/2019 18199050070-130ND10
cis-1,3-Dichloropropene 460 11/27/2019 18199250070-130ND10
trans-1,3-Dichloropropene 470 11/27/2019 18199350070-130ND10
Diisopropyl ether (IPE)450 11/27/2019 18199050070-130ND10
Ethylbenzene 2200 11/27/2019 1819E7750070-130180010
Hexachlorobutadiene 460 11/27/2019 18199250070-130ND10
Isopropylbenzene (Cumene)570 11/27/2019 18199950070-1307710
p-Isopropyltoluene (p-Cymene)460 11/27/2019 18199350070-130ND10
Methyl tertiary butyl ether (MTBE)380 11/27/2019 18197650070-130ND10
Methylene chloride 390 11/27/2019 18197850070-130ND10
Naphthalene 610 11/27/2019 18198150050-14020010
n-Propylbenzene 630 11/27/2019 18199150070-13018010
Styrene 480 11/27/2019 18199550070-130ND10
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 22 of 30
Volatile Organic Compounds by GC/MS - MS
Batch:Prep Method:
Sample ID:UK26006-003MS
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
1,1,1,2-Tetrachloroethane 490 11/27/2019 18199850070-130ND10
1,1,2,2-Tetrachloroethane 450 11/27/2019 18199050070-130ND10
Tetrachloroethene 530 11/27/2019 181910650070-130ND10
Toluene 480 11/27/2019 18199550070-1305.7 10
1,1,2-Trichloro-1,2,2-Trifluoroethane 450 11/27/2019 18199150070-130ND10
1,2,3-Trichlorobenzene 440 11/27/2019 18198850070-130ND10
1,2,4-Trichlorobenzene 430 11/27/2019 18198650070-130ND10
1,1,1-Trichloroethane 440 11/27/2019 18198950070-130ND10
1,1,2-Trichloroethane 490 11/27/2019 18199850070-130ND10
Trichloroethene 480 11/27/2019 18199650070-130ND10
Trichlorofluoromethane 510 11/27/2019 181910350060-140ND10
1,2,3-Trichloropropane 440 11/27/2019 18198850070-130ND10
1,3,5-Trimethylbenzene (Mesitylene)470 11/27/2019 1819N6550070-130ND10
1,2,4-Trimethylbenzene 520 11/27/2019 18199050070-1307310
Vinyl chloride 510 11/27/2019 181910150060-140ND10
m+p - Xylenes 860 11/27/2019 18199450070-13039010
o - Xylenes 490 11/27/2019 18199550070-1301110
Surrogate Q % Rec Acceptance
Limit
1,2-Dichloroethane-d4 80 70-130
Bromofluorobenzene 94 70-130
Toluene-d8 94 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 23 of 30
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:UK26006-003MD
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
% Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
Benzene 510 11/27/2019 18419250070-1300.84 204510
Bromobenzene 470 11/27/2019 18419450070-1301.6 20ND10
Bromochloromethane 420 11/27/2019 18418450070-1303.5 20ND10
Bromodichloromethane 440 11/27/2019 18418850070-1302.5 20ND10
Bromoform 490 11/27/2019 18419850070-1303.2 20ND10
Bromomethane (Methyl bromide)520 11/27/2019 184110450060-1400.54 20ND10
n-Butylbenzene 480 11/27/2019 18419150070-1301.6 202410
sec-Butylbenzene 480 11/27/2019 18419350070-1301.9 208.7 10
tert-Butylbenzene 490 11/27/2019 18419750070-1300.92 20ND10
Carbon tetrachloride 460 11/27/2019 18419250070-1301.6 20ND10
Chlorobenzene 460 11/27/2019 18419350070-1301.3 20ND10
Chloroethane 620 11/27/2019 184112450042-1631.5 20ND10
Chloroform 430 11/27/2019 18418650070-1301.8 20ND10
Chloromethane (Methyl chloride)520 11/27/2019 184110350020-1580.99 20ND10
2-Chlorotoluene 450 11/27/2019 18419050070-1301.1 20ND10
4-Chlorotoluene 460 11/27/2019 18419250070-1301.4 20ND10
Dibromochloromethane 470 11/27/2019 18419350070-1301.5 20ND10
1,2-Dibromoethane (EDB)450 11/27/2019 18419050070-1301.8 20ND10
Dibromomethane (Methylene bromide)430 11/27/2019 18418750070-1301.4 20ND10
1,2-Dichlorobenzene 450 11/27/2019 18419050070-1300.92 20ND10
1,3-Dichlorobenzene 450 11/27/2019 18418950070-1300.51 20ND10
1,4-Dichlorobenzene 420 11/27/2019 18418550070-1301.2 20ND10
Dichlorodifluoromethane 570 11/27/2019 184111350060-1409.1 20ND10
1,1-Dichloroethane 440 11/27/2019 18418950070-1300.70 20ND10
1,2-Dichloroethane 430 11/27/2019 18418650070-1300.87 20ND10
1,1-Dichloroethene 490 11/27/2019 18419950070-1302.2 20ND10
cis-1,2-Dichloroethene 440 11/27/2019 18418750070-1300.34 20ND10
trans-1,2-Dichloroethene 460 11/27/2019 18419250070-1300.96 20ND10
1,2-Dichloropropane 450 11/27/2019 18419050070-1302.0 20ND10
1,3-Dichloropropane 450 11/27/2019 18418950070-1302.2 20ND10
2,2-Dichloropropane 460 11/27/2019 18419250070-1302.5 20ND10
1,1-Dichloropropene 440 11/27/2019 18418850070-1302.7 20ND10
cis-1,3-Dichloropropene 450 11/27/2019 18418950070-1302.7 20ND10
trans-1,3-Dichloropropene 460 11/27/2019 18419250070-1301.3 20ND10
Diisopropyl ether (IPE)450 11/27/2019 18419050070-1300.67 20ND10
Ethylbenzene 2100 11/27/2019 1841N6350070-1303.4 20180010
Hexachlorobutadiene 500 11/27/2019 184110150070-1309.2 20ND10
Isopropylbenzene (Cumene)560 11/27/2019 18419750070-1302.2 207710
p-Isopropyltoluene (p-Cymene)470 11/27/2019 18419550070-1302.1 20ND10
Methyl tertiary butyl ether (MTBE)380 11/27/2019 18417750070-1300.19 20ND10
Methylene chloride 390 11/27/2019 18417950070-1300.64 20ND10
Naphthalene 650 11/27/2019 18418950050-1406.5 2020010
n-Propylbenzene 620 11/27/2019 18418950070-1301.1 2018010
Styrene 460 11/27/2019 18419350070-1302.5 20ND10
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 24 of 30
Volatile Organic Compounds by GC/MS - MSD
Batch:Prep Method:
Sample ID:UK26006-003MD
37307 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date% RPD
% Rec
Limit
% RPD
Limit
Sample
Amount
Dil(ug/L)(ug/L)(ug/L)
1,1,1,2-Tetrachloroethane 480 11/27/2019 18419750070-1301.3 20ND10
1,1,2,2-Tetrachloroethane 440 11/27/2019 18418950070-1301.8 20ND10
Tetrachloroethene 520 11/27/2019 184110450070-1302.0 20ND10
Toluene 480 11/27/2019 18419450070-1301.1 205.7 10
1,1,2-Trichloro-1,2,2-Trifluoroethane 460 11/27/2019 18419250070-1301.8 20ND10
1,2,3-Trichlorobenzene 490 11/27/2019 18419750070-1309.6 20ND10
1,2,4-Trichlorobenzene 460 11/27/2019 18419350070-1307.4 20ND10
1,1,1-Trichloroethane 440 11/27/2019 18418850070-1300.84 20ND10
1,1,2-Trichloroethane 470 11/27/2019 18419450070-1303.5 20ND10
Trichloroethene 470 11/27/2019 18419550070-1302.0 20ND10
Trichlorofluoromethane 520 11/27/2019 184110450060-1400.86 20ND10
1,2,3-Trichloropropane 430 11/27/2019 18418650070-1302.4 20ND10
1,3,5-Trimethylbenzene (Mesitylene)460 11/27/2019 1841N6550070-1300.30 20ND10
1,2,4-Trimethylbenzene 520 11/27/2019 18418950070-1300.65 207310
Vinyl chloride 510 11/27/2019 184110250060-1400.70 20ND10
m+p - Xylenes 840 11/27/2019 18418950070-1303.1 2039010
o - Xylenes 480 11/27/2019 18419350070-1301.6 201110
Surrogate Q % Rec Acceptance
Limit
1,2-Dichloroethane-d4 81 70-130
Bromofluorobenzene 94 70-130
Toluene-d8 94 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 25 of 30
Volatile Organic Compounds by GC/MS - MB
Batch:Prep Method:
Sample ID:UQ37672-001
37672 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter Result Q LOQ DL Units Analysis DateDil
Ethylbenzene ND 12/02/2019 22580.50 0.40 ug/L1
Naphthalene ND 12/02/2019 22580.50 0.40 ug/L1
1,2,4-Trimethylbenzene ND 12/02/2019 22580.50 0.40 ug/L1
m+p - Xylenes ND 12/02/2019 22580.50 0.40 ug/L1
o - Xylenes ND 12/02/2019 22580.50 0.40 ug/L1
Surrogate Q % Rec
Acceptance
Limit
1,2-Dichloroethane-d4 104 70-130
Bromofluorobenzene 93 70-130
Toluene-d8 102 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 26 of 30
Volatile Organic Compounds by GC/MS - LCS
Batch:Prep Method:
Sample ID:UQ37672-002
37672 SM 6200B-2011
Analytical Method:SM 6200B-2011
Matrix:Aqueous
Parameter
Result
Q % Rec
Spike
Amount
Analysis Date
% Rec
LimitDil(ug/L)(ug/L)
Ethylbenzene 47 12/02/2019 2133935070-1301
Naphthalene 37 12/02/2019 2133745050-1401
1,2,4-Trimethylbenzene 51 12/02/2019 21331025070-1301
m+p - Xylenes 45 12/02/2019 2133915070-1301
o - Xylenes 47 12/02/2019 2133935070-1301
Surrogate Q % Rec
Acceptance
Limit
1,2-Dichloroethane-d4 99 70-130
Bromofluorobenzene 93 70-130
Toluene-d8 95 70-130
Note:Calculations are performed before rounding to avoid round-off errors in calculated results
LOQ = Limit of Quantitation
ND = Not detected at or above the DL
J = Estimated result < LOQ and > DL
N = Recovery is out of criteriaP = The RPD between two GC columns exceeds 40%
+ = RPD is out of criteria_DL = Detection Limit
LOD = Limit of Detection
QC Data for Lot Number: UK26006
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 27 of 30
Chain of Custody
and
Miscellaneous Documents
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 28 of 30
SHEALY ENVIRONMENTAL SERVICES, INC.

106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 29 of 30
SHEALY ENVIRONMENTAL SERVICES, INC.

106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Shealy Environmental Services, Inc.

Page 30 of 30
ANALYTICAL REPORT
November 29, 2019
Terracon - Raleigh, NC
Sample Delivery Group:L1165046
Samples Received:11/26/2019
Project Number:70149661A
Description:Robert Coleman Exxon
Report To:Will Frazier
2401 Brentwood Rd
Ste 107
Raleigh, NC 27604
Entire Report Reviewed By:
November 29, 2019
[Preliminary Report]
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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December 02, 2019
Heather J Wagner
Project Manager
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ONE LAB. NATIONWIDE.TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
SG-01 L1165046-01 5
SG-02 L1165046-02 6
SG-03 L1165046-03 7
Qc: Quality Control Summary 8
Volatile Organic Compounds (MS) by Method TO-15 8
Gl: Glossary of Terms 9
Al: Accreditations & Locations 10
Sc: Sample Chain of Custody 11
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SG-01 L1165046-01 Air Ethan Dinwiddle 11/25/19 17:09 11/26/19 08:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15 WG1387969 1 11/27/19 10:37 11/27/19 10:37 GLN Mt. Juliet, TN
Collected by Collected date/time Received date/time
SG-02 L1165046-02 Air Ethan Dinwiddle 11/25/19 16:43 11/26/19 08:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15 WG1387969 1 11/27/19 11:14 11/27/19 11:14 GLN Mt. Juliet, TN
Collected by Collected date/time Received date/time
SG-03 L1165046-03 Air Ethan Dinwiddle 11/25/19 14:46 11/26/19 08:30
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Organic Compounds (MS) by Method TO-15 WG1387969 1 11/27/19 11:52 11/27/19 11:52 GLN Mt. Juliet, TN
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Heather J Wagner
Project Manager
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
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Heather J Wagner
Project Manager
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01
L1165046
SG-01
Collected date/time: 11/25/19 17:09
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
Benzene 71-43-2 78.10 0.200 0.639 0.813 2.60 1 WG1387969
n-Butylbenzene 104-51-8 135 0.200 1.10 ND ND 1 WG1387969
1,2-Dichloroethane 107-06-2 99 0.200 0.810 ND ND 1 WG1387969
Ethylbenzene 100-41-4 106 0.200 0.867 0.298 1.29 1 WG1387969
Isopropylbenzene 98-82-8 120.20 0.200 0.983 ND ND 1 WG1387969
Naphthalene 91-20-3 128 0.630 3.30 ND ND 1 WG1387969
n-Propylbenzene 103-65-1 120 0.200 0.982 ND ND 1 WG1387969
Toluene 108-88-3 92.10 0.200 0.753 2.19 8.25 1 WG1387969
1,2,4-Trimethylbenzene 95-63-6 120 0.200 0.982 0.320 1.57 1 WG1387969
1,3,5-Trimethylbenzene 108-67-8 120 0.200 0.982 ND ND 1 WG1387969
m&p-Xylene 1330-20-7 106 0.400 1.73 1.23 5.33 1 WG1387969
o-Xylene 95-47-6 106 0.200 0.867 0.417 1.81 1 WG1387969
Trichloroethylene 79-01-6 131 0.200 1.07 ND ND 1 WG1387969
Tetrachloroethylene 127-18-4 166 0.200 1.36 0.849 5.76 1 WG1387969
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 92.3 WG1387969
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 02
L1165046
SG-02
Collected date/time: 11/25/19 16:43
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
Benzene 71-43-2 78.10 0.200 0.639 1.43 4.57 1 WG1387969
n-Butylbenzene 104-51-8 135 0.200 1.10 ND ND 1 WG1387969
1,2-Dichloroethane 107-06-2 99 0.200 0.810 ND ND 1 WG1387969
Ethylbenzene 100-41-4 106 0.200 0.867 0.878 3.81 1 WG1387969
Isopropylbenzene 98-82-8 120.20 0.200 0.983 ND ND 1 WG1387969
Naphthalene 91-20-3 128 0.630 3.30 ND ND 1 WG1387969
n-Propylbenzene 103-65-1 120 0.200 0.982 0.249 1.22 1 WG1387969
Toluene 108-88-3 92.10 0.200 0.753 5.05 19.0 1 WG1387969
1,2,4-Trimethylbenzene 95-63-6 120 0.200 0.982 1.39 6.82 1 WG1387969
1,3,5-Trimethylbenzene 108-67-8 120 0.200 0.982 0.514 2.52 1 WG1387969
m&p-Xylene 1330-20-7 106 0.400 1.73 3.98 17.3 1 WG1387969
o-Xylene 95-47-6 106 0.200 0.867 1.42 6.16 1 WG1387969
Trichloroethylene 79-01-6 131 0.200 1.07 ND ND 1 WG1387969
Tetrachloroethylene 127-18-4 166 0.200 1.36 3.20 21.7 1 WG1387969
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 95.9 WG1387969
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.SAMPLE RESULTS - 03
L1165046
SG-03
Collected date/time: 11/25/19 14:46
Volatile Organic Compounds (MS) by Method TO-15
CAS #Mol. Wt.RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3
Benzene 71-43-2 78.10 0.200 0.639 2.91 9.30 1 WG1387969
n-Butylbenzene 104-51-8 135 0.200 1.10 ND ND 1 WG1387969
1,2-Dichloroethane 107-06-2 99 0.200 0.810 ND ND 1 WG1387969
Ethylbenzene 100-41-4 106 0.200 0.867 1.35 5.85 1 WG1387969
Isopropylbenzene 98-82-8 120.20 0.200 0.983 ND ND 1 WG1387969
Naphthalene 91-20-3 128 0.630 3.30 ND ND 1 WG1387969
n-Propylbenzene 103-65-1 120 0.200 0.982 0.227 1.11 1 WG1387969
Toluene 108-88-3 92.10 0.200 0.753 12.8 48.2 1 WG1387969
1,2,4-Trimethylbenzene 95-63-6 120 0.200 0.982 1.09 5.35 1 WG1387969
1,3,5-Trimethylbenzene 108-67-8 120 0.200 0.982 0.455 2.23 1 WG1387969
m&p-Xylene 1330-20-7 106 0.400 1.73 5.02 21.8 1 WG1387969
o-Xylene 95-47-6 106 0.200 0.867 1.69 7.33 1 WG1387969
Trichloroethylene 79-01-6 131 0.200 1.07 0.249 1.33 1 WG1387969
Tetrachloroethylene 127-18-4 166 0.200 1.36 3.10 21.0 1 WG1387969
(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 94.0 WG1387969
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1387969
Volatile Organic Compounds (MS) by Method TO-15 L1165046-01,02,03
Method Blank (MB)
(MB) R3477047-3 11/27/19 10:00
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
Benzene U 0.0460 0.200
1,2-Dichloroethane U 0.0616 0.200
Ethylbenzene U 0.0506 0.200
Isopropylbenzene U 0.0563 0.200
Naphthalene U 0.154 0.630
Tetrachloroethylene U 0.0497 0.200
Toluene U 0.0499 0.200
Trichloroethylene U 0.0545 0.200
1,2,4-Trimethylbenzene U 0.0483 0.200
1,3,5-Trimethylbenzene U 0.0631 0.200
m&p-Xylene U 0.0946 0.400
o-Xylene U 0.0633 0.200
n-Butylbenzene U 0.0531 0.200
n-Propylbenzene U 0.0789 0.200
(S) 1,4-Bromofluorobenzene 91.3 60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3477047-1 11/27/19 08:46 • (LCSD) R3477047-2 11/27/19 09:23
Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ppbv %%%%%
Benzene 3.75 4.36 4.31 116 115 70.0-130 1.15 25
1,2-Dichloroethane 3.75 4.33 4.28 115 114 70.0-130 1.16 25
Trichloroethylene 3.75 4.25 4.31 113 115 70.0-130 1.40 25
Toluene 3.75 4.53 4.57 121 122 70.0-130 0.879 25
Tetrachloroethylene 3.75 4.77 4.83 127 129 70.0-130 1.25 25
Ethylbenzene 3.75 4.49 4.56 120 122 70.0-130 1.55 25
m&p-Xylene 7.50 9.09 9.23 121 123 70.0-130 1.53 25
o-Xylene 3.75 4.49 4.60 120 123 70.0-130 2.42 25
1,3,5-Trimethylbenzene 3.75 4.46 4.53 119 121 70.0-130 1.56 25
1,2,4-Trimethylbenzene 3.75 4.42 4.53 118 121 70.0-130 2.46 25
Naphthalene 3.75 4.38 4.42 117 118 70.0-159 0.909 25
Isopropylbenzene 3.75 4.49 4.57 120 122 70.0-130 1.77 25
n-Butylbenzene 3.75 4.31 4.33 115 115 70.0-130 0.463 25
n-Propylbenzene 3.75 4.65 4.74 124 126 70.0-130 1.92 25
(S) 1,4-Bromofluorobenzene 94.6 95.4 60.0-140
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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ONE LAB. NATIONWIDE.GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
ND Not detected at the Reporting Limit (or MDL where applicable).
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG.
1 Cp
2Tc
3Ss
4Cn
5Sr
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8Al
9Sc
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ONE LAB. NATIONWIDE.
Pace National is the only environmental laboratory accredited/certified to support your work nationwide from one location. One phone call, one point of contact, one laboratory. No other lab is as
accessible or prepared to handle your needs throughout the country. Our capacity and capability from our single location laboratory is comparable to the collective totals of the network
laboratories in our industry. The most significant benefit to our one location design is the design of our laboratory campus. The model is conducive to accelerated productivity, decreasing
turn-around time, and preventing cross contamination, thus protecting sample integrity. Our focus on premium quality and prompt service allows us to be YOUR LAB OF CHOICE.
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace National.

State Accreditations
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN-03-2002-34
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹n/a
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶90010 South Carolina 84004
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana ¹LA180010 Texas T104704245-18-15
Maine TN0002 Texas ⁵LAB0152
Maryland 324 Utah TN00003
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 460132
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 9980939910
Montana CERT0086 Wyoming A2LA

Third Party Federal Accreditations
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable

Our Locations
Pace National has sixty-four client support centers that provide sample pickup and/or the delivery of sampling supplies. If you would like assistance from one of our support offices, please contactour main office. Pace National performs all testing at our central laboratory.
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ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Raleigh, NC 70149661A L1165046 11/29/19 16:35 10 of 11
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
Terracon - Raleigh, NC 70149661A L1165046 12/02/19 08:32 10 of 11