WS-2666_6142_CA_MRP_20221230

SOIL VAPOR MONITORING REPORT
James Stewart Residence (Incident #6142)
5120 Price Road
Stoneville, Rockingham County, North Carolina
December 29, 2022
Terracon Project No. 75207117

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

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

Terracon Consultants, Inc. 7327-G West friendly Avenue Greensboro, NC 27410
P 336-3365-8135 F 336-365-7020 terracon.com
December 29, 2022

Mr. Scott Ryals, L.G.
North Carolina Department of Environmental Quality
Division of Waste Management
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Email: [e-mail]

Re: Soil Vapor Monitoring Report
James Stewart Residence
5120 Price Road
Stoneville, Rockingham County, North Carolina
UST Incident Number: 6142
Terracon Project No. 75207117

Dear Mr. Ryals:

Terracon Consultants, Inc. (Terracon) is pleased to submit this Soil Vapor Monitoring Report for the
above referenced property. This report has been prepared in general accordance with North
Carolina Department of Environmental Quality (NCDEQ), UST Section Assessment Guidelines
dated January 19, 2021 and Task Authorization No. 02, approved on October 24, 2022. Terracon
notes that the groundwater sampling activities were delayed pending the resolution of site access
issues.

If you have any questions regarding this report or the assessment activities, please contact us at
336-365-8135.

Sincerely,
Terracon Consultants, Inc.

Laura R. Elliott, LG Edmund Woloszyn, Jr., REM
Senior Geologist Approved Project Reviewer

Enclosures

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 ......................................................................................................................... 3
C.3 Previous Investigations ................................................................................................................. 4
C.4 Water Supply Wells ....................................................................................................................... 4
C.5 Surface Water ............................................................................................................................... 5
C.6 Land Use Information .................................................................................................................... 5
D. ASSESSMENT INFORMATION ........................................................................... 5
D.1 Site Geology and Hydrogeology ................................................................................................... 5
D.2 Sampling Activities ........................................................................................................................ 6
E. CONCLUSIONS AND RECOMMENDATIONS ..................................................... 7

EXHIBITS
Exhibit 1: Topographic Map
Exhibit 2: Site Plan
Exhibit 3: Water-Supply Well Map
Exhibit 4: Soil Vapor Sampling Locations

TABLES
Table 1: Water-Supply Well Information
Table 2: Permanent Monitoring Well Construction Details
Table 3: Summary of Passive Soil Vapor Analytical Results

APPENDIX
Appendix A: Field Notes
Appendix B: Laboratory Analytical Results and Chain of Custody Forms
James Stewart Residence Stoneville, North Carolina Terracon Project No. 75207117 Incident No. 6142 December 30, 2022

Responsive ■ Resourceful ■ Reliable 1

SOIL VAPOR MONITORING REPORT
A. SITE INFORMATION
Date of Report: December 30, 2022
NCDEQ Incident No: 6142
Facility ID: Unknown
Site Name: James Stewart Residence
Site Location: 5120 Price Road
Stoneville, Rockingham County, North Carolina
Latitude: N 36.52386
Longitude: E -79.89417
UST Owner/Operator: No petroleum product sources have been identified on the subject
property. Two off-site confirmed UST release incidents have been
identified within 400 feet of the Stewart Residence. However,
previous investigations have not established a conclusive connection
between the on-site groundwater impacts and the potential off-site
sources.

Current Property Owner: James F. Stewart
5120 Price Road
Stoneville, North Carolina 27048
Current Property
Occupant: James F. Stewart

Consultant: Terracon Consultants, Inc. (Contact: Mark I. Miller) 7327-G W. Friendly Ave Greensboro, North Carolina 27410
[phone]
Laboratory: Pace Analytical National Center for Testing and Innovation
12065 Lebanon Road
Mount Juliet, Tennessee 37122
[phone]
Release Information: Release Date: Tredway Store and Fulp Property: March 1992
Estimated Quantity: Unknown
Source: Former UST Systems: Tredway - 1x1,000-gallon gasoline
UST, Fulp Property – 1x1,000-gallon gasoline UST
Cause of Release: Unknown
Currently Active USTs: None
James Stewart Residence Stoneville, North Carolina Terracon Project No. 75207117 Incident No. 6142 December 30, 2022

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I, Laura R. Elliott, a Licensed Geologist for Terracon Consultants, Inc., do certify that the information
contained in this report is correct and accurate to the best of my knowledge.

Laura R. Elliott, L.G.
NC License No. 2271

Terracon Consultants, Inc. is licensed to practice geology/engineering in North Carolina. The certification number of the corporation is F-0869.
B. EXECUTIVE SUMMARY
The purpose of this report is to evaluate the current status of soil vapor quality at the James Stewart
Residence (Incident No. 6142) located at 5120 Price Road in Stoneville, Rockingham County, North
Carolina. The 0.68-acre property (Rockingham County Property ID No. 7031-0070-1795) is
developed with an approximately 1,390 square-foot residence that was constructed in 1973. The
property is surrounded by rural residences, farmland, and wooded land.

Gasoline constituents were originally detected in 1990 in water-supply wells located at the Stewart
residence and the north-adjacent Walker property at 5142 Price Road. The source of the gasoline
constituents has not been conclusively identified. The NCDEQ installed a Point-of-Entry (POE)
carbon filtration system on the Stewart well in 1990; the well was replaced in 1997 and the original
water supply well was abandoned in 1998. Groundwater samples collected from the replacement
well continued to indicate the presence of benzene at a concentration exceeding the 15A NCAC 2L
Groundwater Quality Standard (2L Standard) and, therefore, a POE system was installed on the
replacement well in 2000. The POE system continues to operate at the present time and influent
water samples continue to exhibit elevated benzene concentrations.

Terracon mobilized to the site on December 8, 2022, to install 13 passive soil gas samplers in a
square grid layout in the vicinity of the Stewart water supply well. The sampling grid was
approximately 50 feet by 50 feet (2500 square feet). Terracon installed Beacon soil gas samplers
according to the installation procedures provided by the company and returned eight (8) days later
on December 16, 2022, to collect the samples and submit them to Beacon for laboratory analysis. A
trip blank was also included with the samples collected.

No petroleum constituents were detected at concentrations above the laboratory reporting limits in
the trip blank or in the Beacon passive soil gas samplers collected from the site on December 16,
2022.
Assessment activities to date have not established a conclusive link between the petroleum
James Stewart Residence Stoneville, North Carolina Terracon Project No. 75207117 Incident No. 6142 December 30, 2022

Responsive ■ Resourceful ■ Reliable 3
contaminants identified in the Stewart well and the former USTs at the former Tredway Store and
Fulp property.
Based on the data presented in this monitoring report, Terracon recommends the following:
 Suspend groundwater sampling activities at the former Tredway Store and Fulp property
monitoring wells.
 If results of the Stewart well sampling are below 2L Standards, sampling should
continue every three months over the next year at the Stewart well POE system to
assess if benzene concentrations will remain below the 2L Standard.
C. SITE HISTORY AND CHARACTERIZATION
The purpose of this report is to evaluate the current status of soil vapor quality at the James Stewart
Residence (Incident No. 6142) located at 5120 Price Road in Stoneville, Rockingham County, North
Carolina (Exhibit 1). Terracon completed this report to summarize the findings of assessment
activities performed on December 8 and December 16, 2022. This Soil Vapor Monitoring Report
was prepared for the site in response to a request by the Incident Manager, Mr. Herb Berger with
the NCDEQ Division of Waste Management, Trust Fund Branch.

The groundwater monitoring report was prepared in general accordance with 15A NCAC 2L .0115
regulations and the NCDEQ UST Section Corrective Action Guidelines, dated January 19, 2021,
under the supervision of Ms. Laura R. Elliott, a North Carolina licensed geologist (North Carolina
License No. 2271).

C.1 Site Setting

The release incident is located at the James Stewart residence, a 0.68-acre property (Rockingham
County Property ID No. 7031-0070-1795) developed with an approximately 1,390 square-foot
residence that was constructed in 1973. The property is surrounded by rural residences and
farmland.

C.2 Release Summary

Gasoline constituents were originally detected in 1990 in water supply wells located at the Stewart
residence and the north-adjacent Walker property at 5142 Price Road. The source of the gasoline
constituents has not been conclusively identified. The NCDEQ installed a POE carbon filtration
system on the Stewart well in 1990; the well was replaced in 1997 and the original well that was
installed in 1990 was abandoned in 1998. Groundwater samples collected from the replacement
well continued to indicate the presence of benzene at a concentration exceeding the 15A NCAC 2L
Groundwater Quality Standard (2L Standard). NCDEQ had a POE system was installed on the
James Stewart Residence Stoneville, North Carolina Terracon Project No. 75207117 Incident No. 6142 December 30, 2022

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replacement well in 2000. The POE system continues to operate at the present time, and influent
water samples continue to exhibit elevated benzene concentrations. The site is depicted in Exhibit
2.

C.3 Previous Investigations

Two possible sources were identified for the gasoline impacts:

Former Tredway Store
The former Tredway Store (no address available) is located approximately 350 feet northeast and
topographically cross-gradient relative to the Stewart well and operated from approximately 1947
until 1968. One unregistered underground storage tank (UST) was removed from the property in
1992, and soil samples collected beneath the UST at that time contained petroleum products at
concentrations exceeding NCDEQ action levels. Monitoring well MW-1D was installed at the
Tredway Store in 1994, and groundwater samples collected from the well contained trace
concentrations of benzene, lead and 1,2-dichloroethane. Monitoring well MW-1S was installed at
the former Tredway Store in 2012, and soil samples collected from the monitoring well boring did
not indicate the presence of residual soil impacts at concentrations exceeding residential soil
cleanup standards. Groundwater samples collected from wells MW-1S and MW-1D in 2012 did not
contain concentrations of petroleum constituents above the analytical method’s reporting limits.

Former Fulp Property
One gasoline UST was removed from the southwest-adjacent Fulp property in 1992, and soil
samples indicated that a petroleum release had occurred. The UST was located near the boundary
between the Fulp and Walker property, approximately 250 feet southwest of the Stewart well.
Monitoring wells MW-2S and MW-2D were installed on the down-gradient side of the former Fulp
UST in 1994, and groundwater samples collected from the wells contained slightly elevated
concentrations of gasoline constituents. Additional soil samples collected in the vicinity of the
former UST in 2012 did not contain reported concentrations of petroleum hydrocarbons.
Groundwater samples collected from wells MW-2S and MW-2D in 2012, and well MW-2S in 2016
(well MW-2D was dry), did not contain reported concentrations of petroleum hydrocarbons.

Groundwater samples collected from off-site water supply wells WSW-4 and WSW-6 in 2012 did not
contain reported concentrations of petroleum constituents, although the groundwater sample from
WSW-4 did contain the chlorinated solvent tetrachloroethene at a concentration below the 2L
Standard. Influent water samples to the Stewart well POE system have been collected
intermittently since 1990. The influent samples continue to contain benzene at reported
concentrations exceeding the 2L Standard, although the concentrations appear to be decreasing
over time.

C.4 Water Supply Wells

James Stewart Residence Stoneville, North Carolina Terracon Project No. 75207117 Incident No. 6142 December 30, 2022

Responsive ■ Resourceful ■ Reliable 5
Based on receptor survey information provided by a previous consultant, nine water supply wells
are located within 1,000 feet of the site. Municipal water is not available in the site vicinity. Table 1
presents detailed well information for the nearby water supply wells, and the water supply well
locations are shown on Exhibit 3.

C.5 Surface Water

An unnamed tributary to Buffalo Creek is located approximately 800 feet south of the site. Surface
waters are depicted on Exhibit 1.

C.6 Land Use Information

The site is surrounded by rural residences, farmland, and wooded land.
D. ASSESSMENT INFORMATION

D.1 Site Geology and Hydrogeology

The following resources were reviewed to evaluate site-specific geological and hydrogeological
characteristics.

Price, Virginia (1982), and Northwest Eden (1978), Mayodan (1997) and Southwest Eden
(2002), North Carolina Quadrangles, USGS 7.5-minute series topographic maps, dated as
shown (Exhibit 1).
Geologic Map of North Carolina, dated 1985.
Soil Survey of Rockingham County, North Carolina, US Department of Agriculture, Natural
Resources Conservation Service, Web Soil Survey via the Internet,
http://websoilsurvey.nrcs.usda.gov/app/.

The site is located within the Sauratown Mountains Anticlinorium of the Piedmont Physiographic
Province. The Piedmont Physiographic Province generally consists of low to medium elevation,
rounded hills and long rolling northeast to southwest trending ridges with incised creeks and river
channels. Bedrock in the site area is described as metamorphosed mafic volcanic rock.

In-place chemical and physical weathering of parent rocks typically form residual soils in the
Piedmont region. Weathering is facilitated by the presence of fractures, joints, and less resistant
minerals in the rock. In areas not altered by erosion, alluvial deposition or the activities of man, the
typical residual soil profile consists of clay-rich unconsolidated materials at the surface, transitioning
to sandy silts and silty sands at depth. Typically, the boundary between soil and rock is not sharply
defined. This transitional zone is termed “partially weathered rock”.

James Stewart Residence Stoneville, North Carolina Terracon Project No. 75207117 Incident No. 6142 December 30, 2022

Responsive ■ Resourceful ■ Reliable 6
In the Piedmont Physiographic region of North Carolina, groundwater generally occurs in pore
spaces within soils and in the structural features present in the underlying rock (i.e. joints, fractures,
and faults). Recharge to the water table is primarily by precipitation infiltrating the surficial,
unsaturated soils (vadose zone) and percolating downward under the influence of gravity to the
water table (saturated zone). Typically, the water table is not a level surface, but a subdued
reflection of the land surface. The depth to the water table is not consistent and is dependent upon
several factors that include the amount of rainfall, permeability of the soil, the extent of fracturing in
the underlying rock and the influences of groundwater pumping. Groundwater typically flows in
directions parallel to the ground surface and under the influence of gravity, migrates to discharge
points such as surface water features, the toes of slopes or natural springs.

Please note that fluctuations in the depth of the water table can be expected depending on
variations in precipitation, surface water run-off and other factors not evident at the time of our
subsurface exploration. Normally, the highest levels of the water table occur in late winter and
spring and the lowest levels occur in the late summer and fall. Based on an interpreted groundwater
flow direction, groundwater is expected to flow to the southwest.

D.2 Sampling Activities

Terracon mobilized to the site on December 8, 2022, to conduct soil vapor sampling activities. A
private utility locator cleared the proposed sampling area, and NC 811 was called prior to the work
beginning. The passive soil gas (PSG) samplers were provided by Beacon, and Terracon installed
the samplers according to the BESURE Sample Collection Kit guidance. A hammer drill and
appropriate drill bits were used to create a soil vapor pathway to 36 inches below ground surface
(bgs) at each of the 13 sample locations within the grid. The 12-inch lengths of pipe provided by
Beacon were tapped into the ground, and then Beacon Samplers were installed and covered with
aluminum foil. Samplers were left in place for eight days, as seven days was the recommended
minimum sampling time. Terracon waited the extra day to avoid collecting the samples under rainy
weather conditions.

On December 16, 2022, the 13 Beacon samplers were collected by following the PSG Kit
Instructions. The field kit was sent to Beacon laboratories under strict chain of custody procedures.
Soil vapor sampling locations are presented in Exhibit 4.

Based on the laboratory analytical results, petroleum constituents were not reported in the passive
soil vapor samplers collected from any of the 13 sample locations. The trip blank did not contain
petroleum constituents at concentrations above the MDLs.

The soil vapor analytical results from the passive sampler locations are summarized in Table 3. A
copy of the laboratory analytical report is provided in Appendix B.
James Stewart Residence Stoneville, North Carolina Terracon Project No. 75207117 Incident No. 6142 December 30, 2022

Responsive ■ Resourceful ■ Reliable 7
E. CONCLUSIONS AND RECOMMENDATIONS
Based on information obtained during the completion of our assessment activities, Terracon
provides the following conclusions and findings.

Petroleum constituents were not detected in the passive soil vapor samples from the 13 soil
vapor sampling points installed under this task authorization, indicating that a shallow,
subsurface source of benzene does not exist on the Stewart property.
Based on the receptor survey information developed by a previous consultant, nine water-supply
wells are located within 1,000 feet of the Stewart well. Municipal water is not available to the site
or the immediately surrounding properties.
Assessment activities to date have not established a conclusive link between the petroleum
contaminants identified in the Stewart well and the former USTs at the former Tredway Store and
Fulp property.
Based on the data presented in this monitoring report, Terracon recommends the following activities
be completed at the site:
Terracon recommends that groundwater sampling activities be suspended at the former Tredway
Store and Fulp property monitoring wells.
If results of the Stewart well sampling are below 2L Standards, sampling should continue at the
Stewart well POE system once every three months over the next year to assess if benzene
concentrations remain below the 2L standard.

EXHIBITS

TOPOGRAPHIC MAP
James Stewart Residence (Incident #6142)
5120 Price Road
Stoneville, Rockingham County, NC
TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY
QUADRANGLES INCLUDE: PRICE, VA (1/1/1982), NORTHWEST EDEN, NC (1/1/1978), MAYODAN, NC (1/1/1997) and SOUTHWEST EDEN, NC (1/1/2002).
7327 W Friendly Ave Ste G
Greensboro, NC 27410-6253
75207117
Project Manager:
Drawn by:
Checked by:
Approved by:
MIM
EW
EW
1”=2,000’
Stewart
April 2022
Project No.
Scale:
File Name:
Date: 1
Exhibit MIM
APPROXIMATE
SITE LOCATION

MW-2S
FORMER UST
LOCATION MW-2D
SCALE IN FEET

0 190
MW-1D
MW-3D
FORMER
TREDWAY STORE
FORMER PULP
PROPERTY (SNOW)
CHARLES WALKER
PROPERTY
STEWART
PROPERTY
TREDWAY
WSW
SITE PLAN
James Stewart Residence (Incident #6142)
5120 Price Road
Stoneville, Rockingham County, NC
7327 W Friendly Ave Ste G
Greensboro, NC 27410-6253
DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS
NOT INTENDED FOR CONSTRUCTION PURPOSES
75207117
AERIAL PHOTOGRAPHY PROVIDED
BY ROCKINGHAM COUNTY GIS
MIM
WSW-2
EW
EW
AS SHOWN
Stewart
April 2022
Scale:
2
Exhibit
WALKER WELL
WSW-1
Project Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
MIM
STEWART WSW
WSW-3A
WSW-3
LEGEND
SITE BOUNDARY
PARCEL BOUNDARY
MONITORING WELL
WATER-SUPPLY WELL

MW-2S
WSW-7
WSW-4
MW-2D
MW-1S
MW-3D
CHARLES WALKER
PROPERTY
STEWART
PROPERTY
TREDWAY WSW
1,000’ RADIUS
WSW-2
WSW-1
MW-1D STEWART WSW
WATER-SUPPLY WELL MAP
James Stewart Residence (Incident #6142)
5120 Price Road
Stoneville, Rockingham County, NC
WSW-3A WSW-3
7327 W Friendly Ave Ste G
Greensboro, NC 27410-6253
DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS
NOT INTENDED FOR CONSTRUCTION PURPOSES
75207117
AERIAL PHOTOGRAPHY PROVIDED
BY ROCKINGHAM COUNTY GIS
MIM
EW
EW
AS SHOWN
Stewart
April 2022
Scale:
3
Exhibit
WSW-5
WSW-6I
WSW-6
Project Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
MIM
SCALE IN FEET
0 425
LEGEND
SITE BOUNDARY
PARCEL BOUNDARY
MONITORING WELL
WATER-SUPPLY WELL

SOIL VAPOR SAMPLING LOCATIONS
NCDEQ 2020-2023- James Stewart
5120 Price Road Incident # 6142 Stoneville, NC
7327 W Friendly Ave Ste G
Greensboro, NC 27410-6253
DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES
75207117
AERIAL PHOTOGRAPHY PROVIDED BY MICROSOFT BING MAPS
LRE
EW
EW
AS SHOWN
Click

DEC 2022
Scale:
4
Exhibit Project Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
LRE
TABLES
TABLE 1
Water Supply Well Information
James Stewart Residence
5120 Price Road
Stoneville, Rockingham County, North Carolina
Terracon Project No. 75207117
MAP ID PARCEL ID NO.PROPERTY ADDRESS
(STONEVILLE, NC)
OWNER NAME & ADDRESS
PHONE NUMBER (336)
WELL
DEPTH
(FEET)
WELL USE DISTANCE FROM
STEWART WELL COMMENTS
STEWART 703100701795 5120 Price Road
(Site)
James F. Stewart
5120 Price Road
Stoneville, NC 27048
573-9161
645 Active Site POE Carbon Filtration System
WSW-1 703100701934 5142 Price Road
Charles Walker
5142 Price Road
Stoneville, MC 27048
Unknown Active 100 North adjoining property POE
Carbon Filtration System
WSW-2 703100618190 150 Starling Road
Bobby Wayne Walker
150 Starling Road
Stoneville, NC 27048
932-5261
305 Active 250 Low yield well
WSW-3 703100609493 171 Starling Road
John Snow
171 Starling Road
Stoneville, NC 27048
573-1761
Unknown Inactive 410 West adjoining property
Low yield well
WSW-3A 703100609493 171 Starling Road
John Snow
171 Starling Road
Stoneville, NC 27048
573-1761
680 Active 460 West adjoining property
Low yield well
WSW-4 703100702300 5074 Price Road
Herbert Ray Foster
5074 Price Road
Stoneville, NC 27048
Unknown Active 650 Reportedly hand-dug well - Ray
Foster
WSW-5 703100701181 5058 Price Road
Warren Claybrook & Martin Luther
5058 Price Road
Stoneville, NC 27048
Unknown Active 700 Reportedly drilled well (Ray Foster)
WSW-6 703000792954 5042 Price Road
Farron P. Keaton
2059 Snead Road
Stoneville, NC 27048
Unknown Active 900
WSW-6i 703000792954 5042 Price Road
Farron P. Keaton
2059 Snead Road
Stoneville, NC 27048
Unknown Inactive 850
WSW-7 703100800657 4913 Price Road
Bonya Kallam Tredway
4913 Price Road
Stoneville, NC 27048
573-1196
Unknown Active 900
FORMER
TREDWAY
STORE
703100718285 No Address
Guerrant Tredway III
5007 Price Road
Stoneville, NC 27048
573-2953
Unknown Inactive 450 East adjacent property
TABLE 2
Permanent Monitoring Well Construction Details
James Stewart Residence
5120 Price Road
Stoneville, Rockingham County, North Carolina
Terracon Project No. 75207117
Well Id Date
Installed
Date
Measured
Screened
Interval
(ft. BGS)
Casing
Diameter
(in.)
Well Elevation
(Top of
Casing)
Depth to Water
from Top of
Casing (ft.)
Groundwater
Elevation
Free Product
Thickness (ft.)Comments
7/6/12 50.81 NA
2/18/22 49.82
7/6/12 50.88 43.79 NA
2/18/22 49.76 44.91
7/6/12 47.7 52.77 NA
2/26/16 46.72 53.75
2/18/22 47.40 53.07
7/6/12 Dry NA
7/30/14 Dry
2/18/22 Dry
7/6/12 51.62 31.55 NA
2/26/18 49.72 33.45
11/27/18 49.2 33.97
6/12/20 48.81 34.36
2/18/22 50.68 32.49
Notes:
ft. BGS = Feet below ground surface
NM = Not measured
NA = Not applicable
NA
NANM
94.67
2
6
2 100.47
50-65
79-88.5
39.5-54.5
74.6-124
76-105
MW-2S 10/94
MW-1D 10/94
MW-1S 6/28/12
Field data collected on February 18, 2022
MW-3D 10/94
MW-2D 10/94 6
6
101.02
83.17
Soil Vapor Sample ID Date Deployed
(mm/dd/yy)
Date Collected
(mm/dd/yy)
SV-1 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-2 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-3 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-4 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-5 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-6 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-7 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-8 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-9 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-10 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-11 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-12 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
SV-13 12/8/2022 12/16/2022 <25 <10 <25 <25 <10 <25 <25 <25 <25
TRIP BLANK ----<25 <10 <25 <25 <10 <25 <25 <25 <25
All concentrations reported in ng = nanograms
TABLE 3
Summary of Passive Soil Vapor Analytical Results
James Stewart Residence
5120 Price Road
Stoneville, Rockingham County, NC
Terracon Project No. 75207117
Toluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal XylenesAnalytical Method VOCs by Method
8260C
Contaminant of Concern →Benzene1,2-DichloroethaneEthylbenzeneNaphthaleneTetrachloroethene
APPENDIX A
FIELD NOTES
APPENDIX B
LABORATORY ANALYTICAL RESULTS AND
CHAIN-OF-CUSTODY FORM
Beacon Environmental
CERTIFICATE OF ANALYSIS
Project Description:
Forest Hill, MD 21050 USA
2203A Commerce Road, Suite 1
1.410.838.8780
Laboratory Work Order: 0006711
Beacon Proposal No.: 221104H01
James Stewart Residence
Client PO No.: 75207117
Stoneville, NC
Prepared for:
December 23, 2022
Terracon
7327-G West Friendly Avenue
Greensboro, NC 27410
Laura Elliott
Ryan W. Schneider
Senior Project Manager
All data meet requirements as specified in the Beacon Environmental Quality Assurance Project Plan and the results
relate only to the samples reported. The work performed was in accordance with ISO/IEC 17025:2017, except
compounds reported with are not included in Beacon’s scope of accreditation. This report shall not be reproduced,
except in full, without written approval of the laboratory. Release of the data contained in this data package has been
authorized by the Laboratory Director or his signee, as verified by the following signatures:
Steven C. Thornley
Laboratory Director
Peter B. Kelly
Quality Manager
BEACON-USA.COM
[TOC_1]Cover Page[TOC]
Page 1 of 27
Table of Contents
Cover Page 1
Sample Summary 3
Case Narrative 4
Analytical Results 5
Detailed Analytical Results 6
0006711-01 - Trip Blank 7
0006711-02 - SV-1 8
0006711-03 - SV-2 9
0006711-04 - SV-3 10
0006711-05 - SV-4 11
0006711-06 - SV-5 12
0006711-07 - SV-6 13
0006711-08 - SV-7 14
0006711-09 - SV-8 15
0006711-10 - SV-9 16
0006711-11 - SV-10 17
0006711-12 - SV-11 18
0006711-13 - SV-12 19
0006711-14 - SV-13 20
QC Summaries 21
Additional QC Information 23
Certifications 24
Notes and Definitions 25
Sample Management Records 26
Chain of Custody 27
Page 2 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Sample Summary
Client Sample ID Received MatrixLab Sample ID Analysis
Sampler Type: Beacon Passive Sampler
0006711-01 Trip Blank Air12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-02 SV-1 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-03 SV-2 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-04 SV-3 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-05 SV-4 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-06 SV-5 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-07 SV-6 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-08 SV-7 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-09 SV-8 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-10 SV-9 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-11 SV-10 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-12 SV-11 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-13 SV-12 Soil Gas12/20/2022 EPA 8260C
Sampler Type: Beacon Passive Sampler
0006711-14 SV-13 Soil Gas12/20/2022 EPA 8260C
Samples Received: 14
Samples Analyzed: 14
Project Completeness
[TOC_1]Sample Summary[TOC]
0006711 Page 3 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
[TOC_1]Case Narrative[TOC]Case Narrative
U.S. EPA Method 8260C
All samples were analyzed using thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS)
instrumentation following U.S. EPA Method 8260C, with laboratory results provided in nanograms (ng). Laboratory
QA/QC procedures included internal standards, surrogates, and blanks based on EPA Method 8260C. Analyses and
reporting were in accordance with BEACON’s Quality Assurance Project Plan.
Passive Soil-Gas Survey Notes
If sample locations are covered with or near the edge of an impervious surface (e.g., asphalt or concrete), the
concentrations of compounds in soil gas are higher than if the surfacing was not present. Therefore, the sample
location conditions should be considered when comparing results between locations.
Survey findings are exclusive to this project and when the spatial relationships are compared with results of other
BEACON Surveys it is necessary to incorporate information from both investigations (e.g., depth to sources, soil types,
porosity, soil moisture, presence of impervious surfacing, sample collection times).
Reporting Limits
The RLs represent a baseline above which results meet laboratory-determined limits of precision and accuracy. Field
sample measurements above the upper calibration standard are estimated; however, these values are reported
without qualifiers because all reported measurements are relative to each other and are appropriate to meet the
survey objectives of locating source areas and vapor intrusion pathways and defining the lateral extent of the
contamination.
Project Details
Samples were received in proper condition and laboratory control parameters were met unless otherwise noted
below. The work performed was in accordance with ISO/IEC 17025:2017, except compounds reported with are
not included in Beacon’s scope of accreditation.
End of Case Narrative
0006711 Page 4 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Analytical Results
[TOC_1]Analytical Results[TOC]
0006711 Page 5 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Detailed Analytical Results
[TOC_2]Detailed Analytical Results[TOC]
0006711 Page 6 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-01 - Trip Blank[TOC]
CAS#File ID
Lab Sample ID:0006711-01
(ng)(ng)Analyzed
EPA 8260CMethod:Trip Blank
Air
Vinyl Chloride 75-01-4 <10 10 C22122009.D12/20/2022 16:34
1,1-Dichloroethene 75-35-4 <10 10 C22122009.D12/20/2022 16:34
Methylene Chloride 75-09-2 <10 10 C22122009.D12/20/2022 16:34
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122009.D12/20/2022 16:34
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122009.D12/20/2022 16:34
Methyl-t-butyl ether 1634-04-4 <25 25 C22122009.D12/20/2022 16:34
1,1-Dichloroethane 75-34-3 <10 10 C22122009.D12/20/2022 16:34
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122009.D12/20/2022 16:34
Chloroform 67-66-3 <10 10 C22122009.D12/20/2022 16:34
1,2-Dichloroethane 107-06-2 <10 10 C22122009.D12/20/2022 16:34
1,1,1-Trichloroethane 71-55-6 <10 10 C22122009.D12/20/2022 16:34
Carbon Tetrachloride 56-23-5 <10 10 C22122009.D12/20/2022 16:34
Benzene 71-43-2 <25 25 C22122009.D12/20/2022 16:34
Trichloroethene 79-01-6 <10 10 C22122009.D12/20/2022 16:34
1,4-Dioxane 123-91-1 <10 10 C22122009.D12/20/2022 16:34
1,1,2-Trichloroethane 79-00-5 <10 10 C22122009.D12/20/2022 16:34
Toluene 108-88-3 <25 25 C22122009.D12/20/2022 16:34
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122009.D12/20/2022 16:34
Tetrachloroethene 127-18-4 <10 10 C22122009.D12/20/2022 16:34
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122009.D12/20/2022 16:34
Chlorobenzene 108-90-7 <10 10 C22122009.D12/20/2022 16:34
Ethylbenzene 100-41-4 <25 25 C22122009.D12/20/2022 16:34
p & m-Xylene 179601-23-1 <25 25 C22122009.D12/20/2022 16:34
o-Xylene 95-47-6 <25 25 C22122009.D12/20/2022 16:34
1,2,3-Trichloropropane 96-18-4 <10 10 C22122009.D12/20/2022 16:34
Isopropylbenzene 98-82-8 <25 25 C22122009.D12/20/2022 16:34
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122009.D12/20/2022 16:34
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122009.D12/20/2022 16:34
1,3-Dichlorobenzene 541-73-1 <10 10 C22122009.D12/20/2022 16:34
1,4-Dichlorobenzene 106-46-7 <10 10 C22122009.D12/20/2022 16:34
1,2-Dichlorobenzene 95-50-1 <10 10 C22122009.D12/20/2022 16:34
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122009.D12/20/2022 16:34
Naphthalene 91-20-3 <25 25 C22122009.D12/20/2022 16:34
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122009.D12/20/2022 16:34
2-Methylnaphthalene 91-57-6 <25 25 C22122009.D12/20/2022 16:34
TPH C4-C9 <5,000 5,000 C22122009.D12/20/2022 16:34ˇ
TPH C10-C15 <5,000 5,000 C22122009.D12/20/2022 16:34ˇ
0006711 Page 7 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-02 - SV-1[TOC]
CAS#File ID
Lab Sample ID:0006711-02
(ng)(ng)Analyzed
EPA 8260CMethod:SV-1
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122010.D12/20/2022 16:57
1,1-Dichloroethene 75-35-4 <10 10 C22122010.D12/20/2022 16:57
Methylene Chloride 75-09-2 <10 10 C22122010.D12/20/2022 16:57
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122010.D12/20/2022 16:57
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122010.D12/20/2022 16:57
Methyl-t-butyl ether 1634-04-4 <25 25 C22122010.D12/20/2022 16:57
1,1-Dichloroethane 75-34-3 <10 10 C22122010.D12/20/2022 16:57
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122010.D12/20/2022 16:57
Chloroform 67-66-3 <10 10 C22122010.D12/20/2022 16:57
1,2-Dichloroethane 107-06-2 <10 10 C22122010.D12/20/2022 16:57
1,1,1-Trichloroethane 71-55-6 <10 10 C22122010.D12/20/2022 16:57
Carbon Tetrachloride 56-23-5 <10 10 C22122010.D12/20/2022 16:57
Benzene 71-43-2 <25 25 C22122010.D12/20/2022 16:57
Trichloroethene 79-01-6 <10 10 C22122010.D12/20/2022 16:57
1,4-Dioxane 123-91-1 <10 10 C22122010.D12/20/2022 16:57
1,1,2-Trichloroethane 79-00-5 <10 10 C22122010.D12/20/2022 16:57
Toluene 108-88-3 <25 25 C22122010.D12/20/2022 16:57
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122010.D12/20/2022 16:57
Tetrachloroethene 127-18-4 <10 10 C22122010.D12/20/2022 16:57
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122010.D12/20/2022 16:57
Chlorobenzene 108-90-7 <10 10 C22122010.D12/20/2022 16:57
Ethylbenzene 100-41-4 <25 25 C22122010.D12/20/2022 16:57
p & m-Xylene 179601-23-1 <25 25 C22122010.D12/20/2022 16:57
o-Xylene 95-47-6 <25 25 C22122010.D12/20/2022 16:57
1,2,3-Trichloropropane 96-18-4 <10 10 C22122010.D12/20/2022 16:57
Isopropylbenzene 98-82-8 <25 25 C22122010.D12/20/2022 16:57
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122010.D12/20/2022 16:57
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122010.D12/20/2022 16:57
1,3-Dichlorobenzene 541-73-1 <10 10 C22122010.D12/20/2022 16:57
1,4-Dichlorobenzene 106-46-7 <10 10 C22122010.D12/20/2022 16:57
1,2-Dichlorobenzene 95-50-1 <10 10 C22122010.D12/20/2022 16:57
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122010.D12/20/2022 16:57
Naphthalene 91-20-3 <25 25 C22122010.D12/20/2022 16:57
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122010.D12/20/2022 16:57
2-Methylnaphthalene 91-57-6 <25 25 C22122010.D12/20/2022 16:57
TPH C4-C9 <5,000 5,000 C22122010.D12/20/2022 16:57ˇ
TPH C10-C15 <5,000 5,000 C22122010.D12/20/2022 16:57ˇ
0006711 Page 8 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-03 - SV-2[TOC]
CAS#File ID
Lab Sample ID:0006711-03
(ng)(ng)Analyzed
EPA 8260CMethod:SV-2
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122011.D12/20/2022 17:20
1,1-Dichloroethene 75-35-4 <10 10 C22122011.D12/20/2022 17:20
Methylene Chloride 75-09-2 <10 10 C22122011.D12/20/2022 17:20
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122011.D12/20/2022 17:20
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122011.D12/20/2022 17:20
Methyl-t-butyl ether 1634-04-4 <25 25 C22122011.D12/20/2022 17:20
1,1-Dichloroethane 75-34-3 <10 10 C22122011.D12/20/2022 17:20
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122011.D12/20/2022 17:20
Chloroform 67-66-3 <10 10 C22122011.D12/20/2022 17:20
1,2-Dichloroethane 107-06-2 <10 10 C22122011.D12/20/2022 17:20
1,1,1-Trichloroethane 71-55-6 <10 10 C22122011.D12/20/2022 17:20
Carbon Tetrachloride 56-23-5 <10 10 C22122011.D12/20/2022 17:20
Benzene 71-43-2 <25 25 C22122011.D12/20/2022 17:20
Trichloroethene 79-01-6 <10 10 C22122011.D12/20/2022 17:20
1,4-Dioxane 123-91-1 <10 10 C22122011.D12/20/2022 17:20
1,1,2-Trichloroethane 79-00-5 <10 10 C22122011.D12/20/2022 17:20
Toluene 108-88-3 <25 25 C22122011.D12/20/2022 17:20
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122011.D12/20/2022 17:20
Tetrachloroethene 127-18-4 <10 10 C22122011.D12/20/2022 17:20
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122011.D12/20/2022 17:20
Chlorobenzene 108-90-7 <10 10 C22122011.D12/20/2022 17:20
Ethylbenzene 100-41-4 <25 25 C22122011.D12/20/2022 17:20
p & m-Xylene 179601-23-1 <25 25 C22122011.D12/20/2022 17:20
o-Xylene 95-47-6 <25 25 C22122011.D12/20/2022 17:20
1,2,3-Trichloropropane 96-18-4 <10 10 C22122011.D12/20/2022 17:20
Isopropylbenzene 98-82-8 <25 25 C22122011.D12/20/2022 17:20
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122011.D12/20/2022 17:20
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122011.D12/20/2022 17:20
1,3-Dichlorobenzene 541-73-1 <10 10 C22122011.D12/20/2022 17:20
1,4-Dichlorobenzene 106-46-7 <10 10 C22122011.D12/20/2022 17:20
1,2-Dichlorobenzene 95-50-1 <10 10 C22122011.D12/20/2022 17:20
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122011.D12/20/2022 17:20
Naphthalene 91-20-3 <25 25 C22122011.D12/20/2022 17:20
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122011.D12/20/2022 17:20
2-Methylnaphthalene 91-57-6 <25 25 C22122011.D12/20/2022 17:20
TPH C4-C9 <5,000 5,000 C22122011.D12/20/2022 17:20ˇ
TPH C10-C15 <5,000 5,000 C22122011.D12/20/2022 17:20ˇ
0006711 Page 9 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-04 - SV-3[TOC]
CAS#File ID
Lab Sample ID:0006711-04
(ng)(ng)Analyzed
EPA 8260CMethod:SV-3
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122012.D12/20/2022 17:44
1,1-Dichloroethene 75-35-4 <10 10 C22122012.D12/20/2022 17:44
Methylene Chloride 75-09-2 <10 10 C22122012.D12/20/2022 17:44
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122012.D12/20/2022 17:44
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122012.D12/20/2022 17:44
Methyl-t-butyl ether 1634-04-4 <25 25 C22122012.D12/20/2022 17:44
1,1-Dichloroethane 75-34-3 <10 10 C22122012.D12/20/2022 17:44
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122012.D12/20/2022 17:44
Chloroform 67-66-3 <10 10 C22122012.D12/20/2022 17:44
1,2-Dichloroethane 107-06-2 <10 10 C22122012.D12/20/2022 17:44
1,1,1-Trichloroethane 71-55-6 <10 10 C22122012.D12/20/2022 17:44
Carbon Tetrachloride 56-23-5 <10 10 C22122012.D12/20/2022 17:44
Benzene 71-43-2 <25 25 C22122012.D12/20/2022 17:44
Trichloroethene 79-01-6 <10 10 C22122012.D12/20/2022 17:44
1,4-Dioxane 123-91-1 <10 10 C22122012.D12/20/2022 17:44
1,1,2-Trichloroethane 79-00-5 <10 10 C22122012.D12/20/2022 17:44
Toluene 108-88-3 <25 25 C22122012.D12/20/2022 17:44
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122012.D12/20/2022 17:44
Tetrachloroethene 127-18-4 <10 10 C22122012.D12/20/2022 17:44
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122012.D12/20/2022 17:44
Chlorobenzene 108-90-7 <10 10 C22122012.D12/20/2022 17:44
Ethylbenzene 100-41-4 <25 25 C22122012.D12/20/2022 17:44
p & m-Xylene 179601-23-1 <25 25 C22122012.D12/20/2022 17:44
o-Xylene 95-47-6 <25 25 C22122012.D12/20/2022 17:44
1,2,3-Trichloropropane 96-18-4 <10 10 C22122012.D12/20/2022 17:44
Isopropylbenzene 98-82-8 <25 25 C22122012.D12/20/2022 17:44
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122012.D12/20/2022 17:44
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122012.D12/20/2022 17:44
1,3-Dichlorobenzene 541-73-1 <10 10 C22122012.D12/20/2022 17:44
1,4-Dichlorobenzene 106-46-7 <10 10 C22122012.D12/20/2022 17:44
1,2-Dichlorobenzene 95-50-1 <10 10 C22122012.D12/20/2022 17:44
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122012.D12/20/2022 17:44
Naphthalene 91-20-3 <25 25 C22122012.D12/20/2022 17:44
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122012.D12/20/2022 17:44
2-Methylnaphthalene 91-57-6 <25 25 C22122012.D12/20/2022 17:44
TPH C4-C9 <5,000 5,000 C22122012.D12/20/2022 17:44ˇ
TPH C10-C15 <5,000 5,000 C22122012.D12/20/2022 17:44ˇ
0006711 Page 10 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-05 - SV-4[TOC]
CAS#File ID
Lab Sample ID:0006711-05
(ng)(ng)Analyzed
EPA 8260CMethod:SV-4
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122013.D12/20/2022 18:07
1,1-Dichloroethene 75-35-4 <10 10 C22122013.D12/20/2022 18:07
Methylene Chloride 75-09-2 <10 10 C22122013.D12/20/2022 18:07
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122013.D12/20/2022 18:07
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122013.D12/20/2022 18:07
Methyl-t-butyl ether 1634-04-4 <25 25 C22122013.D12/20/2022 18:07
1,1-Dichloroethane 75-34-3 <10 10 C22122013.D12/20/2022 18:07
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122013.D12/20/2022 18:07
Chloroform 67-66-3 <10 10 C22122013.D12/20/2022 18:07
1,2-Dichloroethane 107-06-2 <10 10 C22122013.D12/20/2022 18:07
1,1,1-Trichloroethane 71-55-6 <10 10 C22122013.D12/20/2022 18:07
Carbon Tetrachloride 56-23-5 <10 10 C22122013.D12/20/2022 18:07
Benzene 71-43-2 <25 25 C22122013.D12/20/2022 18:07
Trichloroethene 79-01-6 <10 10 C22122013.D12/20/2022 18:07
1,4-Dioxane 123-91-1 <10 10 C22122013.D12/20/2022 18:07
1,1,2-Trichloroethane 79-00-5 <10 10 C22122013.D12/20/2022 18:07
Toluene 108-88-3 <25 25 C22122013.D12/20/2022 18:07
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122013.D12/20/2022 18:07
Tetrachloroethene 127-18-4 <10 10 C22122013.D12/20/2022 18:07
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122013.D12/20/2022 18:07
Chlorobenzene 108-90-7 <10 10 C22122013.D12/20/2022 18:07
Ethylbenzene 100-41-4 <25 25 C22122013.D12/20/2022 18:07
p & m-Xylene 179601-23-1 <25 25 C22122013.D12/20/2022 18:07
o-Xylene 95-47-6 <25 25 C22122013.D12/20/2022 18:07
1,2,3-Trichloropropane 96-18-4 <10 10 C22122013.D12/20/2022 18:07
Isopropylbenzene 98-82-8 <25 25 C22122013.D12/20/2022 18:07
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122013.D12/20/2022 18:07
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122013.D12/20/2022 18:07
1,3-Dichlorobenzene 541-73-1 <10 10 C22122013.D12/20/2022 18:07
1,4-Dichlorobenzene 106-46-7 <10 10 C22122013.D12/20/2022 18:07
1,2-Dichlorobenzene 95-50-1 <10 10 C22122013.D12/20/2022 18:07
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122013.D12/20/2022 18:07
Naphthalene 91-20-3 <25 25 C22122013.D12/20/2022 18:07
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122013.D12/20/2022 18:07
2-Methylnaphthalene 91-57-6 <25 25 C22122013.D12/20/2022 18:07
TPH C4-C9 <5,000 5,000 C22122013.D12/20/2022 18:07ˇ
TPH C10-C15 <5,000 5,000 C22122013.D12/20/2022 18:07ˇ
0006711 Page 11 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-06 - SV-5[TOC]
CAS#File ID
Lab Sample ID:0006711-06
(ng)(ng)Analyzed
EPA 8260CMethod:SV-5
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122014.D12/20/2022 18:30
1,1-Dichloroethene 75-35-4 <10 10 C22122014.D12/20/2022 18:30
Methylene Chloride 75-09-2 <10 10 C22122014.D12/20/2022 18:30
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122014.D12/20/2022 18:30
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122014.D12/20/2022 18:30
Methyl-t-butyl ether 1634-04-4 <25 25 C22122014.D12/20/2022 18:30
1,1-Dichloroethane 75-34-3 <10 10 C22122014.D12/20/2022 18:30
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122014.D12/20/2022 18:30
Chloroform 67-66-3 <10 10 C22122014.D12/20/2022 18:30
1,2-Dichloroethane 107-06-2 <10 10 C22122014.D12/20/2022 18:30
1,1,1-Trichloroethane 71-55-6 <10 10 C22122014.D12/20/2022 18:30
Carbon Tetrachloride 56-23-5 <10 10 C22122014.D12/20/2022 18:30
Benzene 71-43-2 <25 25 C22122014.D12/20/2022 18:30
Trichloroethene 79-01-6 <10 10 C22122014.D12/20/2022 18:30
1,4-Dioxane 123-91-1 <10 10 C22122014.D12/20/2022 18:30
1,1,2-Trichloroethane 79-00-5 <10 10 C22122014.D12/20/2022 18:30
Toluene 108-88-3 <25 25 C22122014.D12/20/2022 18:30
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122014.D12/20/2022 18:30
Tetrachloroethene 127-18-4 <10 10 C22122014.D12/20/2022 18:30
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122014.D12/20/2022 18:30
Chlorobenzene 108-90-7 <10 10 C22122014.D12/20/2022 18:30
Ethylbenzene 100-41-4 <25 25 C22122014.D12/20/2022 18:30
p & m-Xylene 179601-23-1 <25 25 C22122014.D12/20/2022 18:30
o-Xylene 95-47-6 <25 25 C22122014.D12/20/2022 18:30
1,2,3-Trichloropropane 96-18-4 <10 10 C22122014.D12/20/2022 18:30
Isopropylbenzene 98-82-8 <25 25 C22122014.D12/20/2022 18:30
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122014.D12/20/2022 18:30
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122014.D12/20/2022 18:30
1,3-Dichlorobenzene 541-73-1 <10 10 C22122014.D12/20/2022 18:30
1,4-Dichlorobenzene 106-46-7 <10 10 C22122014.D12/20/2022 18:30
1,2-Dichlorobenzene 95-50-1 <10 10 C22122014.D12/20/2022 18:30
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122014.D12/20/2022 18:30
Naphthalene 91-20-3 <25 25 C22122014.D12/20/2022 18:30
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122014.D12/20/2022 18:30
2-Methylnaphthalene 91-57-6 <25 25 C22122014.D12/20/2022 18:30
TPH C4-C9 <5,000 5,000 C22122014.D12/20/2022 18:30ˇ
TPH C10-C15 <5,000 5,000 C22122014.D12/20/2022 18:30ˇ
0006711 Page 12 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-07 - SV-6[TOC]
CAS#File ID
Lab Sample ID:0006711-07
(ng)(ng)Analyzed
EPA 8260CMethod:SV-6
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122015.D12/20/2022 18:53
1,1-Dichloroethene 75-35-4 <10 10 C22122015.D12/20/2022 18:53
Methylene Chloride 75-09-2 <10 10 C22122015.D12/20/2022 18:53
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122015.D12/20/2022 18:53
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122015.D12/20/2022 18:53
Methyl-t-butyl ether 1634-04-4 <25 25 C22122015.D12/20/2022 18:53
1,1-Dichloroethane 75-34-3 <10 10 C22122015.D12/20/2022 18:53
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122015.D12/20/2022 18:53
Chloroform 67-66-3 <10 10 C22122015.D12/20/2022 18:53
1,2-Dichloroethane 107-06-2 <10 10 C22122015.D12/20/2022 18:53
1,1,1-Trichloroethane 71-55-6 <10 10 C22122015.D12/20/2022 18:53
Carbon Tetrachloride 56-23-5 <10 10 C22122015.D12/20/2022 18:53
Benzene 71-43-2 <25 25 C22122015.D12/20/2022 18:53
Trichloroethene 79-01-6 <10 10 C22122015.D12/20/2022 18:53
1,4-Dioxane 123-91-1 <10 10 C22122015.D12/20/2022 18:53
1,1,2-Trichloroethane 79-00-5 <10 10 C22122015.D12/20/2022 18:53
Toluene 108-88-3 <25 25 C22122015.D12/20/2022 18:53
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122015.D12/20/2022 18:53
Tetrachloroethene 127-18-4 <10 10 C22122015.D12/20/2022 18:53
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122015.D12/20/2022 18:53
Chlorobenzene 108-90-7 <10 10 C22122015.D12/20/2022 18:53
Ethylbenzene 100-41-4 <25 25 C22122015.D12/20/2022 18:53
p & m-Xylene 179601-23-1 <25 25 C22122015.D12/20/2022 18:53
o-Xylene 95-47-6 <25 25 C22122015.D12/20/2022 18:53
1,2,3-Trichloropropane 96-18-4 <10 10 C22122015.D12/20/2022 18:53
Isopropylbenzene 98-82-8 <25 25 C22122015.D12/20/2022 18:53
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122015.D12/20/2022 18:53
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122015.D12/20/2022 18:53
1,3-Dichlorobenzene 541-73-1 <10 10 C22122015.D12/20/2022 18:53
1,4-Dichlorobenzene 106-46-7 <10 10 C22122015.D12/20/2022 18:53
1,2-Dichlorobenzene 95-50-1 <10 10 C22122015.D12/20/2022 18:53
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122015.D12/20/2022 18:53
Naphthalene 91-20-3 <25 25 C22122015.D12/20/2022 18:53
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122015.D12/20/2022 18:53
2-Methylnaphthalene 91-57-6 <25 25 C22122015.D12/20/2022 18:53
TPH C4-C9 <5,000 5,000 C22122015.D12/20/2022 18:53ˇ
TPH C10-C15 <5,000 5,000 C22122015.D12/20/2022 18:53ˇ
0006711 Page 13 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-08 - SV-7[TOC]
CAS#File ID
Lab Sample ID:0006711-08
(ng)(ng)Analyzed
EPA 8260CMethod:SV-7
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122016.D12/20/2022 19:16
1,1-Dichloroethene 75-35-4 <10 10 C22122016.D12/20/2022 19:16
Methylene Chloride 75-09-2 <10 10 C22122016.D12/20/2022 19:16
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122016.D12/20/2022 19:16
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122016.D12/20/2022 19:16
Methyl-t-butyl ether 1634-04-4 <25 25 C22122016.D12/20/2022 19:16
1,1-Dichloroethane 75-34-3 <10 10 C22122016.D12/20/2022 19:16
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122016.D12/20/2022 19:16
Chloroform 67-66-3 <10 10 C22122016.D12/20/2022 19:16
1,2-Dichloroethane 107-06-2 <10 10 C22122016.D12/20/2022 19:16
1,1,1-Trichloroethane 71-55-6 <10 10 C22122016.D12/20/2022 19:16
Carbon Tetrachloride 56-23-5 <10 10 C22122016.D12/20/2022 19:16
Benzene 71-43-2 <25 25 C22122016.D12/20/2022 19:16
Trichloroethene 79-01-6 <10 10 C22122016.D12/20/2022 19:16
1,4-Dioxane 123-91-1 <10 10 C22122016.D12/20/2022 19:16
1,1,2-Trichloroethane 79-00-5 <10 10 C22122016.D12/20/2022 19:16
Toluene 108-88-3 <25 25 C22122016.D12/20/2022 19:16
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122016.D12/20/2022 19:16
Tetrachloroethene 127-18-4 <10 10 C22122016.D12/20/2022 19:16
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122016.D12/20/2022 19:16
Chlorobenzene 108-90-7 <10 10 C22122016.D12/20/2022 19:16
Ethylbenzene 100-41-4 <25 25 C22122016.D12/20/2022 19:16
p & m-Xylene 179601-23-1 <25 25 C22122016.D12/20/2022 19:16
o-Xylene 95-47-6 <25 25 C22122016.D12/20/2022 19:16
1,2,3-Trichloropropane 96-18-4 <10 10 C22122016.D12/20/2022 19:16
Isopropylbenzene 98-82-8 <25 25 C22122016.D12/20/2022 19:16
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122016.D12/20/2022 19:16
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122016.D12/20/2022 19:16
1,3-Dichlorobenzene 541-73-1 <10 10 C22122016.D12/20/2022 19:16
1,4-Dichlorobenzene 106-46-7 <10 10 C22122016.D12/20/2022 19:16
1,2-Dichlorobenzene 95-50-1 <10 10 C22122016.D12/20/2022 19:16
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122016.D12/20/2022 19:16
Naphthalene 91-20-3 <25 25 C22122016.D12/20/2022 19:16
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122016.D12/20/2022 19:16
2-Methylnaphthalene 91-57-6 <25 25 C22122016.D12/20/2022 19:16
TPH C4-C9 <5,000 5,000 C22122016.D12/20/2022 19:16ˇ
TPH C10-C15 <5,000 5,000 C22122016.D12/20/2022 19:16ˇ
0006711 Page 14 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-09 - SV-8[TOC]
CAS#File ID
Lab Sample ID:0006711-09
(ng)(ng)Analyzed
EPA 8260CMethod:SV-8
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122017.D12/20/2022 19:39
1,1-Dichloroethene 75-35-4 <10 10 C22122017.D12/20/2022 19:39
Methylene Chloride 75-09-2 <10 10 C22122017.D12/20/2022 19:39
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122017.D12/20/2022 19:39
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122017.D12/20/2022 19:39
Methyl-t-butyl ether 1634-04-4 <25 25 C22122017.D12/20/2022 19:39
1,1-Dichloroethane 75-34-3 <10 10 C22122017.D12/20/2022 19:39
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122017.D12/20/2022 19:39
Chloroform 67-66-3 <10 10 C22122017.D12/20/2022 19:39
1,2-Dichloroethane 107-06-2 <10 10 C22122017.D12/20/2022 19:39
1,1,1-Trichloroethane 71-55-6 <10 10 C22122017.D12/20/2022 19:39
Carbon Tetrachloride 56-23-5 <10 10 C22122017.D12/20/2022 19:39
Benzene 71-43-2 <25 25 C22122017.D12/20/2022 19:39
Trichloroethene 79-01-6 <10 10 C22122017.D12/20/2022 19:39
1,4-Dioxane 123-91-1 <10 10 C22122017.D12/20/2022 19:39
1,1,2-Trichloroethane 79-00-5 <10 10 C22122017.D12/20/2022 19:39
Toluene 108-88-3 <25 25 C22122017.D12/20/2022 19:39
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122017.D12/20/2022 19:39
Tetrachloroethene 127-18-4 <10 10 C22122017.D12/20/2022 19:39
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122017.D12/20/2022 19:39
Chlorobenzene 108-90-7 <10 10 C22122017.D12/20/2022 19:39
Ethylbenzene 100-41-4 <25 25 C22122017.D12/20/2022 19:39
p & m-Xylene 179601-23-1 <25 25 C22122017.D12/20/2022 19:39
o-Xylene 95-47-6 <25 25 C22122017.D12/20/2022 19:39
1,2,3-Trichloropropane 96-18-4 <10 10 C22122017.D12/20/2022 19:39
Isopropylbenzene 98-82-8 <25 25 C22122017.D12/20/2022 19:39
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122017.D12/20/2022 19:39
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122017.D12/20/2022 19:39
1,3-Dichlorobenzene 541-73-1 <10 10 C22122017.D12/20/2022 19:39
1,4-Dichlorobenzene 106-46-7 <10 10 C22122017.D12/20/2022 19:39
1,2-Dichlorobenzene 95-50-1 <10 10 C22122017.D12/20/2022 19:39
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122017.D12/20/2022 19:39
Naphthalene 91-20-3 <25 25 C22122017.D12/20/2022 19:39
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122017.D12/20/2022 19:39
2-Methylnaphthalene 91-57-6 <25 25 C22122017.D12/20/2022 19:39
TPH C4-C9 <5,000 5,000 C22122017.D12/20/2022 19:39ˇ
TPH C10-C15 <5,000 5,000 C22122017.D12/20/2022 19:39ˇ
0006711 Page 15 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-10 - SV-9[TOC]
CAS#File ID
Lab Sample ID:0006711-10
(ng)(ng)Analyzed
EPA 8260CMethod:SV-9
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122018.D12/20/2022 20:02
1,1-Dichloroethene 75-35-4 <10 10 C22122018.D12/20/2022 20:02
Methylene Chloride 75-09-2 <10 10 C22122018.D12/20/2022 20:02
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122018.D12/20/2022 20:02
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122018.D12/20/2022 20:02
Methyl-t-butyl ether 1634-04-4 <25 25 C22122018.D12/20/2022 20:02
1,1-Dichloroethane 75-34-3 <10 10 C22122018.D12/20/2022 20:02
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122018.D12/20/2022 20:02
Chloroform 67-66-3 <10 10 C22122018.D12/20/2022 20:02
1,2-Dichloroethane 107-06-2 <10 10 C22122018.D12/20/2022 20:02
1,1,1-Trichloroethane 71-55-6 <10 10 C22122018.D12/20/2022 20:02
Carbon Tetrachloride 56-23-5 <10 10 C22122018.D12/20/2022 20:02
Benzene 71-43-2 <25 25 C22122018.D12/20/2022 20:02
Trichloroethene 79-01-6 <10 10 C22122018.D12/20/2022 20:02
1,4-Dioxane 123-91-1 <10 10 C22122018.D12/20/2022 20:02
1,1,2-Trichloroethane 79-00-5 <10 10 C22122018.D12/20/2022 20:02
Toluene 108-88-3 <25 25 C22122018.D12/20/2022 20:02
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122018.D12/20/2022 20:02
Tetrachloroethene 127-18-4 <10 10 C22122018.D12/20/2022 20:02
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122018.D12/20/2022 20:02
Chlorobenzene 108-90-7 <10 10 C22122018.D12/20/2022 20:02
Ethylbenzene 100-41-4 <25 25 C22122018.D12/20/2022 20:02
p & m-Xylene 179601-23-1 <25 25 C22122018.D12/20/2022 20:02
o-Xylene 95-47-6 <25 25 C22122018.D12/20/2022 20:02
1,2,3-Trichloropropane 96-18-4 <10 10 C22122018.D12/20/2022 20:02
Isopropylbenzene 98-82-8 <25 25 C22122018.D12/20/2022 20:02
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122018.D12/20/2022 20:02
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122018.D12/20/2022 20:02
1,3-Dichlorobenzene 541-73-1 <10 10 C22122018.D12/20/2022 20:02
1,4-Dichlorobenzene 106-46-7 <10 10 C22122018.D12/20/2022 20:02
1,2-Dichlorobenzene 95-50-1 <10 10 C22122018.D12/20/2022 20:02
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122018.D12/20/2022 20:02
Naphthalene 91-20-3 <25 25 C22122018.D12/20/2022 20:02
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122018.D12/20/2022 20:02
2-Methylnaphthalene 91-57-6 <25 25 C22122018.D12/20/2022 20:02
TPH C4-C9 <5,000 5,000 C22122018.D12/20/2022 20:02ˇ
TPH C10-C15 <5,000 5,000 C22122018.D12/20/2022 20:02ˇ
0006711 Page 16 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-11 - SV-10[TOC]
CAS#File ID
Lab Sample ID:0006711-11
(ng)(ng)Analyzed
EPA 8260CMethod:SV-10
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122019.D12/20/2022 20:26
1,1-Dichloroethene 75-35-4 <10 10 C22122019.D12/20/2022 20:26
Methylene Chloride 75-09-2 <10 10 C22122019.D12/20/2022 20:26
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122019.D12/20/2022 20:26
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122019.D12/20/2022 20:26
Methyl-t-butyl ether 1634-04-4 <25 25 C22122019.D12/20/2022 20:26
1,1-Dichloroethane 75-34-3 <10 10 C22122019.D12/20/2022 20:26
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122019.D12/20/2022 20:26
Chloroform 67-66-3 <10 10 C22122019.D12/20/2022 20:26
1,2-Dichloroethane 107-06-2 <10 10 C22122019.D12/20/2022 20:26
1,1,1-Trichloroethane 71-55-6 <10 10 C22122019.D12/20/2022 20:26
Carbon Tetrachloride 56-23-5 <10 10 C22122019.D12/20/2022 20:26
Benzene 71-43-2 <25 25 C22122019.D12/20/2022 20:26
Trichloroethene 79-01-6 <10 10 C22122019.D12/20/2022 20:26
1,4-Dioxane 123-91-1 <10 10 C22122019.D12/20/2022 20:26
1,1,2-Trichloroethane 79-00-5 <10 10 C22122019.D12/20/2022 20:26
Toluene 108-88-3 <25 25 C22122019.D12/20/2022 20:26
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122019.D12/20/2022 20:26
Tetrachloroethene 127-18-4 <10 10 C22122019.D12/20/2022 20:26
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122019.D12/20/2022 20:26
Chlorobenzene 108-90-7 <10 10 C22122019.D12/20/2022 20:26
Ethylbenzene 100-41-4 <25 25 C22122019.D12/20/2022 20:26
p & m-Xylene 179601-23-1 <25 25 C22122019.D12/20/2022 20:26
o-Xylene 95-47-6 <25 25 C22122019.D12/20/2022 20:26
1,2,3-Trichloropropane 96-18-4 <10 10 C22122019.D12/20/2022 20:26
Isopropylbenzene 98-82-8 <25 25 C22122019.D12/20/2022 20:26
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122019.D12/20/2022 20:26
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122019.D12/20/2022 20:26
1,3-Dichlorobenzene 541-73-1 <10 10 C22122019.D12/20/2022 20:26
1,4-Dichlorobenzene 106-46-7 <10 10 C22122019.D12/20/2022 20:26
1,2-Dichlorobenzene 95-50-1 <10 10 C22122019.D12/20/2022 20:26
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122019.D12/20/2022 20:26
Naphthalene 91-20-3 <25 25 C22122019.D12/20/2022 20:26
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122019.D12/20/2022 20:26
2-Methylnaphthalene 91-57-6 <25 25 C22122019.D12/20/2022 20:26
TPH C4-C9 <5,000 5,000 C22122019.D12/20/2022 20:26ˇ
TPH C10-C15 <5,000 5,000 C22122019.D12/20/2022 20:26ˇ
0006711 Page 17 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-12 - SV-11[TOC]
CAS#File ID
Lab Sample ID:0006711-12
(ng)(ng)Analyzed
EPA 8260CMethod:SV-11
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122020.D12/20/2022 20:49
1,1-Dichloroethene 75-35-4 <10 10 C22122020.D12/20/2022 20:49
Methylene Chloride 75-09-2 <10 10 C22122020.D12/20/2022 20:49
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122020.D12/20/2022 20:49
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122020.D12/20/2022 20:49
Methyl-t-butyl ether 1634-04-4 <25 25 C22122020.D12/20/2022 20:49
1,1-Dichloroethane 75-34-3 <10 10 C22122020.D12/20/2022 20:49
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122020.D12/20/2022 20:49
Chloroform 67-66-3 <10 10 C22122020.D12/20/2022 20:49
1,2-Dichloroethane 107-06-2 <10 10 C22122020.D12/20/2022 20:49
1,1,1-Trichloroethane 71-55-6 <10 10 C22122020.D12/20/2022 20:49
Carbon Tetrachloride 56-23-5 <10 10 C22122020.D12/20/2022 20:49
Benzene 71-43-2 <25 25 C22122020.D12/20/2022 20:49
Trichloroethene 79-01-6 <10 10 C22122020.D12/20/2022 20:49
1,4-Dioxane 123-91-1 <10 10 C22122020.D12/20/2022 20:49
1,1,2-Trichloroethane 79-00-5 <10 10 C22122020.D12/20/2022 20:49
Toluene 108-88-3 <25 25 C22122020.D12/20/2022 20:49
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122020.D12/20/2022 20:49
Tetrachloroethene 127-18-4 <10 10 C22122020.D12/20/2022 20:49
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122020.D12/20/2022 20:49
Chlorobenzene 108-90-7 <10 10 C22122020.D12/20/2022 20:49
Ethylbenzene 100-41-4 <25 25 C22122020.D12/20/2022 20:49
p & m-Xylene 179601-23-1 <25 25 C22122020.D12/20/2022 20:49
o-Xylene 95-47-6 <25 25 C22122020.D12/20/2022 20:49
1,2,3-Trichloropropane 96-18-4 <10 10 C22122020.D12/20/2022 20:49
Isopropylbenzene 98-82-8 <25 25 C22122020.D12/20/2022 20:49
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122020.D12/20/2022 20:49
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122020.D12/20/2022 20:49
1,3-Dichlorobenzene 541-73-1 <10 10 C22122020.D12/20/2022 20:49
1,4-Dichlorobenzene 106-46-7 <10 10 C22122020.D12/20/2022 20:49
1,2-Dichlorobenzene 95-50-1 <10 10 C22122020.D12/20/2022 20:49
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122020.D12/20/2022 20:49
Naphthalene 91-20-3 <25 25 C22122020.D12/20/2022 20:49
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122020.D12/20/2022 20:49
2-Methylnaphthalene 91-57-6 <25 25 C22122020.D12/20/2022 20:49
TPH C4-C9 <5,000 5,000 C22122020.D12/20/2022 20:49ˇ
TPH C10-C15 <5,000 5,000 C22122020.D12/20/2022 20:49ˇ
0006711 Page 18 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-13 - SV-12[TOC]
CAS#File ID
Lab Sample ID:0006711-13
(ng)(ng)Analyzed
EPA 8260CMethod:SV-12
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122021.D12/20/2022 21:13
1,1-Dichloroethene 75-35-4 <10 10 C22122021.D12/20/2022 21:13
Methylene Chloride 75-09-2 <10 10 C22122021.D12/20/2022 21:13
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122021.D12/20/2022 21:13
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122021.D12/20/2022 21:13
Methyl-t-butyl ether 1634-04-4 <25 25 C22122021.D12/20/2022 21:13
1,1-Dichloroethane 75-34-3 <10 10 C22122021.D12/20/2022 21:13
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122021.D12/20/2022 21:13
Chloroform 67-66-3 <10 10 C22122021.D12/20/2022 21:13
1,2-Dichloroethane 107-06-2 <10 10 C22122021.D12/20/2022 21:13
1,1,1-Trichloroethane 71-55-6 <10 10 C22122021.D12/20/2022 21:13
Carbon Tetrachloride 56-23-5 <10 10 C22122021.D12/20/2022 21:13
Benzene 71-43-2 <25 25 C22122021.D12/20/2022 21:13
Trichloroethene 79-01-6 <10 10 C22122021.D12/20/2022 21:13
1,4-Dioxane 123-91-1 <10 10 C22122021.D12/20/2022 21:13
1,1,2-Trichloroethane 79-00-5 <10 10 C22122021.D12/20/2022 21:13
Toluene 108-88-3 <25 25 C22122021.D12/20/2022 21:13
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122021.D12/20/2022 21:13
Tetrachloroethene 127-18-4 <10 10 C22122021.D12/20/2022 21:13
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122021.D12/20/2022 21:13
Chlorobenzene 108-90-7 <10 10 C22122021.D12/20/2022 21:13
Ethylbenzene 100-41-4 <25 25 C22122021.D12/20/2022 21:13
p & m-Xylene 179601-23-1 <25 25 C22122021.D12/20/2022 21:13
o-Xylene 95-47-6 <25 25 C22122021.D12/20/2022 21:13
1,2,3-Trichloropropane 96-18-4 <10 10 C22122021.D12/20/2022 21:13
Isopropylbenzene 98-82-8 <25 25 C22122021.D12/20/2022 21:13
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122021.D12/20/2022 21:13
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122021.D12/20/2022 21:13
1,3-Dichlorobenzene 541-73-1 <10 10 C22122021.D12/20/2022 21:13
1,4-Dichlorobenzene 106-46-7 <10 10 C22122021.D12/20/2022 21:13
1,2-Dichlorobenzene 95-50-1 <10 10 C22122021.D12/20/2022 21:13
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122021.D12/20/2022 21:13
Naphthalene 91-20-3 <25 25 C22122021.D12/20/2022 21:13
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122021.D12/20/2022 21:13
2-Methylnaphthalene 91-57-6 <25 25 C22122021.D12/20/2022 21:13
TPH C4-C9 <5,000 5,000 C22122021.D12/20/2022 21:13ˇ
TPH C10-C15 <5,000 5,000 C22122021.D12/20/2022 21:13ˇ
0006711 Page 19 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Result
Analyte
LOQ
Q
[TOC_3]0006711-14 - SV-13[TOC]
CAS#File ID
Lab Sample ID:0006711-14
(ng)(ng)Analyzed
EPA 8260CMethod:SV-13
Soil Gas
Vinyl Chloride 75-01-4 <10 10 C22122022.D12/20/2022 21:36
1,1-Dichloroethene 75-35-4 <10 10 C22122022.D12/20/2022 21:36
Methylene Chloride 75-09-2 <10 10 C22122022.D12/20/2022 21:36
1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10 C22122022.D12/20/2022 21:36
trans-1,2-Dichloroethene 156-60-5 <10 10 C22122022.D12/20/2022 21:36
Methyl-t-butyl ether 1634-04-4 <25 25 C22122022.D12/20/2022 21:36
1,1-Dichloroethane 75-34-3 <10 10 C22122022.D12/20/2022 21:36
cis-1,2-Dichloroethene 156-59-2 <10 10 C22122022.D12/20/2022 21:36
Chloroform 67-66-3 <10 10 C22122022.D12/20/2022 21:36
1,2-Dichloroethane 107-06-2 <10 10 C22122022.D12/20/2022 21:36
1,1,1-Trichloroethane 71-55-6 <10 10 C22122022.D12/20/2022 21:36
Carbon Tetrachloride 56-23-5 <10 10 C22122022.D12/20/2022 21:36
Benzene 71-43-2 <25 25 C22122022.D12/20/2022 21:36
Trichloroethene 79-01-6 <10 10 C22122022.D12/20/2022 21:36
1,4-Dioxane 123-91-1 <10 10 C22122022.D12/20/2022 21:36
1,1,2-Trichloroethane 79-00-5 <10 10 C22122022.D12/20/2022 21:36
Toluene 108-88-3 <25 25 C22122022.D12/20/2022 21:36
1,2-Dibromoethane (EDB)106-93-4 <10 10 C22122022.D12/20/2022 21:36
Tetrachloroethene 127-18-4 <10 10 C22122022.D12/20/2022 21:36
1,1,1,2-Tetrachloroethane 630-20-6 <10 10 C22122022.D12/20/2022 21:36
Chlorobenzene 108-90-7 <10 10 C22122022.D12/20/2022 21:36
Ethylbenzene 100-41-4 <25 25 C22122022.D12/20/2022 21:36
p & m-Xylene 179601-23-1 <25 25 C22122022.D12/20/2022 21:36
o-Xylene 95-47-6 <25 25 C22122022.D12/20/2022 21:36
1,2,3-Trichloropropane 96-18-4 <10 10 C22122022.D12/20/2022 21:36
Isopropylbenzene 98-82-8 <25 25 C22122022.D12/20/2022 21:36
1,3,5-Trimethylbenzene 108-67-8 <25 25 C22122022.D12/20/2022 21:36
1,2,4-Trimethylbenzene 95-63-6 <25 25 C22122022.D12/20/2022 21:36
1,3-Dichlorobenzene 541-73-1 <10 10 C22122022.D12/20/2022 21:36
1,4-Dichlorobenzene 106-46-7 <10 10 C22122022.D12/20/2022 21:36
1,2-Dichlorobenzene 95-50-1 <10 10 C22122022.D12/20/2022 21:36
1,2,4-Trichlorobenzene 120-82-1 <10 10 C22122022.D12/20/2022 21:36
Naphthalene 91-20-3 <25 25 C22122022.D12/20/2022 21:36
1,2,3-Trichlorobenzene 87-61-6 <10 10 C22122022.D12/20/2022 21:36
2-Methylnaphthalene 91-57-6 <25 25 C22122022.D12/20/2022 21:36
TPH C4-C9 <5,000 5,000 C22122022.D12/20/2022 21:36ˇ
TPH C10-C15 <5,000 5,000 C22122022.D12/20/2022 21:36ˇ
0006711 Page 20 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
QC Information/Summary
[TOC_1]QC Summaries[TOC]
0006711 Page 21 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Soil-Gas Sample Analysis by EPA Method 8260C - Quality Control Summary
22L0059-BLK1 (Lab Blank) File ID: C22122003.D
Result
QAnalyte(ng) (ng)CAS#
LOQ
Analyzed: 12/20/22 11:27
Sampler: Beacon Passive Sampler
UVinyl Chloride 75-01-4 <10 10
U1,1-Dichloroethene 75-35-4 <10 10
UMethylene Chloride 75-09-2 <10 10
U1,1,2-Trichlorotrifluoroethane (Fr.113)76-13-1 <10 10
Utrans-1,2-Dichloroethene 156-60-5 <10 10
UMethyl-t-butyl ether 1634-04-4 <25 25
U1,1-Dichloroethane 75-34-3 <10 10
Ucis-1,2-Dichloroethene 156-59-2 <10 10
UChloroform67-66-3 <10 10
U1,2-Dichloroethane 107-06-2 <10 10
U1,1,1-Trichloroethane 71-55-6 <10 10
UCarbon Tetrachloride 56-23-5 <10 10
UBenzene71-43-2 <25 25
UTrichloroethene79-01-6 <10 10
U1,4-Dioxane 123-91-1 <10 10
U1,1,2-Trichloroethane 79-00-5 <10 10
UToluene108-88-3 <25 25
U1,2-Dibromoethane (EDB)106-93-4 <10 10
UTetrachloroethene127-18-4 <10 10
U1,1,1,2-Tetrachloroethane 630-20-6 <10 10
UChlorobenzene108-90-7 <10 10
UEthylbenzene100-41-4 <25 25
Up & m-Xylene 179601-23-1 <25 25
Uo-Xylene 95-47-6 <25 25
U1,2,3-Trichloropropane 96-18-4 <10 10
UIsopropylbenzene98-82-8 <25 25
U1,3,5-Trimethylbenzene 108-67-8 <25 25
U1,2,4-Trimethylbenzene 95-63-6 <25 25
U1,3-Dichlorobenzene 541-73-1 <10 10
U1,4-Dichlorobenzene 106-46-7 <10 10
U1,2-Dichlorobenzene 95-50-1 <10 10
U1,2,4-Trichlorobenzene 120-82-1 <10 10
UNaphthalene91-20-3 <25 25
U1,2,3-Trichlorobenzene 87-61-6 <10 10
U2-Methylnaphthalene 91-57-6 <25 25
UTPH C4-C9 <5000 5000
UTPH C10-C15 <5000 5000
0006711 Page 22 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Additional QC Information
[TOC_1]Additional QC Information[TOC]
0006711 Page 23 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
[TOC_2]Certifications[TOC]
Project
RequiredExpiresDescriptionCertification No.Certification ID
Laboratory Certification List
Alaska CS-LAP 19-002 Alaska Department of Environmental Conservation 01/31/2023
DoD-ELAP 72690/L22-563 United States Department of Defense Environmental
Laboratory Accreditation
11/30/2024
ISO/IEC 17025:2017 72690/L22-563 General Requirements for the Competence of Testing
and Calibration Laboratories
11/30/2024
NEFAP 72690/L22-564 TNI National Environmental Field Activities Program
(NEFAP)
11/30/2024
NY-NELAC 12097 New York Department of Health 04/01/2023
Utah-NELAC MD010912022-11 Utah Department of Health 12/31/2023
0006711 Page 24 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Qualifiers/Notes and Definitions
RPD Relative Percent Difference
General Definitions:
NA Not Applicable
Limit of DetectionLOD
Limit of QuantitationLOQ
QualifierQ
Dilution FactorDF
DL Detection Limit
ˇCompound not on scope of accreditation
3 Uncertainty
RRT Evaluation of Relative Retention Times in RRT Units (qualified if outside +0.06 control limits)
values are outside method/contract required QC limits+
Retention Times in MinutesRT
˘Compound not on scope of accreditation and analyzed with a one-point calibration
[TOC_2]Notes and Definitions[TOC]
0006711 Page 25 of 27
Site Name:
Site Location:
Project Manager:Reported:
Terracon
7327-G West Friendly Avenue
Laura ElliottGreensboro, NC 27410
Lab Work Order:
2203A Commerce Road, Suite 1
1.410.838.8780
12/23/2022
James Stewart Residence
Stoneville, NC
221104H01Beacon Proposal:
CERTIFICATE OF ANALYSIS Forest Hill, MD 21050 USA
0006711
Sample Management Records
[TOC_1]Sample Management Records[TOC]
0006711 Page 26 of 27
Page 27 of 27