WA-1127_13279_CA_MRP_20211111

3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone [phone] • [phone] • Fax [phone]
October 12, 2021

Ms. Carrie Stone
North Carolina Department of
Environmental Quality
Washington Regional Office
943 Washington Square Mall
Washington, North Carolina 27889

Re: Ground Water Monitoring Report
October 2021
Westover Service Station
801 West Queen Street
Edenton, Chowan County
North Carolina
Facility ID Number: 0-00-0000012050
Incident Number: 13279
GRI Project Number: 5659

Dear Ms. Stone,

Please find enclosed the referenced report for the above mentioned site.
If you have any questions, please contact William Regenthal at 704-845-4010.

Sincerely,
Geological Resources, Inc.

Leslie Maxtone-Graham
Administrative Assistant

Enclosure

Cc: North East Oil Company, Inc., file

3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone [phone] • [phone] • Fax [phone]
Engineering Certification: C-2727 • Geology Certification: C-127
Ground Water Monitoring Report
October 2021
Westover Service Station
801 West Queen Street
Edenton, Chowan County
North Carolina
Facility ID Number: 0-00-0000012050
Incident Number: 13279
GRI Project Number: 5659

Prepared for:

North East Oil Company, Inc.
Post Office Box 1386
Ahoskie, North Carolina 27910

November 11, 2021

William Regenthal, P. G.
Project Manager
Lisa Weathersby
Report Writer

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
i
SITE INFORMATION
1. Site Identification
 Westover Service Station (Facility ID 0-00-0000012050)
 Incident Number 13279 – Intermediate Risk (I80D)
 Location of Source Area: 801 West Queen Street
Edenton, NC 28677
Chowan County
36.0056606°N, 76.629877°W (Topographical Map)
2. Information about Contacts Associated with the Leaking UST System

UST Owner
North East Oil Company, Inc.
Post Office Box 1386
Ahoskie, NC 27910
[e-mail]
252-862-0236

UST Operator
North East Oil Company, Inc.
Post Office Box 1386
Ahoskie, OH 27910
[e-mail]
252-862-0236

Property Owner
Douglas and Delinah Baird
104 Leigh Street
Edenton, NC 27932
Email Unknown
252-482-3323

Property Occupant
Westover General Store
801 West Queen Street
Edenton, NC 27932
Email Unknown
252-482-3323

Consultant/Contractor
Geological Resources, Inc.
3502 Hayes Road
Monroe, NC 28110
[e-mail]
704-845-4010

Analytical Laboratory
SGS North America, Inc.
4405 Vineland Road
Orlando, FL 32811
State Certification No. 573
407-425-6700
3. Information about Release
 Release was discovered on November 8, 1994
 An unknown amount of product was released from the leaking UST System
 One 3,000-gallon gasoline and one 1,000-gallon gasoline USTs and associated pumps and product
piping are active at the site. According to available data, one 500-gallon gasoline UST, one 1,000-
gallon gasoline UST and one 550-gallon “ghost tank” of unknown content were removed from the
site in November 1994.

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
ii
EXECUTIVE SUMMARY
Westover Service Station is located at 801 West Queen Street in Edenton, Chowan County, North Carolina.
The site is currently owned and operated by Douglas and Delinah Baird as a deli, general store and
petroleum retail facility. The site was formerly operated by North East Oil Company, Inc. as a convenience
store and petroleum retail facility. During UST closure activities conducted in November 1994, a release
was confirmed. Currently, one 3,000-gallon gasoline and one 1,000-gallon gasoline USTs are active at the
site. According to available data, one 500-gallon gasoline UST, one 1,000-gallon gasoline UST and one
550-gallon “ghost tank” of unknown content were removed from the site in November 1994. The
adjoining properties are a mixture of single family residential and commercial properties. According to
the information determined during receptor survey activities, two non-potable water supply wells were
identified within 1,500 feet of the site. Public water is available to the site and surrounding properties
within a 1,500-foot radius of the site.

Receptor information was updated for the site on April 12, 2021. The two water supply wells noted during
the previous receptor survey were not found during the April 2021 survey. Pembroke Creek is located
approximately 290 feet north of the site. Pembroke Creek is designated as a Class B; NSW surface water.
The site does not lie within a designated wellhead protection area.

On October 11, 2021, ten Type II monitoring wells and one Type III monitoring well were gauged, purged
and sampled. MW-11 was not found and was not sampled. Concentrations of individual BTEX
constituents, naphthalene, isopropylbenzene, methylene chloride, n-propylbenzene, 1,2,4-
trimethylbenzene and/or 1,3,5-trimethylbenzene that exceeded the MACs were reported in the ground
water samples collected from MW-1, MW-2, MW-3, MW-6 and MW-7. Concentrations of toluene that
exceeded 10 x the 2B Surface Water standard were reported in the ground water samples collected from
MW-1, MW-2 and MW-3. All of the reported contaminant concentrations were less than the GCLs.

The contaminant mass at the site has increased by 88% since the April 2021 sampling event. A GSI Mann-
Kendall Toolkit for Plume Stability Analysis was completed for the monitoring wells with toluene above
10 x the 2B Surface Water standard. The contaminant plume is stable in MW-1 and MW-2 and is probably
decreasing in MW-3.

Based on this information, the risk classification for the site should be reevaluated. A NRP for ground
water should be filed on the deed of the subject property and the incident should be closed.

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
iii
ACRONYMS
ACM: Asbestos Containing Materials
AFVR: Aggressive Fluid-Vapor Recovery
ARR: Acknowledgement of Report Receipt
AS: Air Sparging
AST: Aboveground Storage Tank
ASTM: American Society for Testing and
Materials
BGS: Below Ground Surface
CAP: Corrective Action Plan
CFR: Code of Federal Regulations
CSA: Comprehensive Site Assessment
DPE: Dual Phase Extraction
DRO: Total Petroleum Hydrocarbons Diesel
Range Organics
DWM: Division of Waste Management
DWR: Department of Water Resources
EPA: Environmental Protection Agency
EPH: Extractible Petroleum Hydrocarbons
ESA: Environmental Site Assessment
GCL: Gross Contamination Level
GRI: Geological Resources, Inc.
GRO: Total Petroleum Hydrocarbons
Gasoline Range Organics
HERR: HAZMAT Emergency Response and
Remediation, Inc.
LSA: Limited Site Assessment
MAC: Maximum Allowable Concentration as
specified in T15A NCAC 2L.0202
MADEP: Massachusetts Department of
Environmental Protection
MCC: Maximum Contaminant Concentrations
MMPE: Mobile Multi-Phase Extraction
NAPL: Non-Aqueous Phase Liquid, “Free
Product”
NCDEQ: North Carolina Department of
Environmental Quality
NCDOT: North Carolina Department of
Transportation
NFA: Notice of No Further Action
NORR: Notice of Regulatory Requirements
NOV: Notice of Violation
NPDES: National Pollutant Discharge
Elimination System
NRP: Notice of Residual Petroleum
O&M: Operation and Maintenance
PAHs: Polynuclear Aromatic Hydrocarbons
PCA: Pre-Construction Assessment
RAL: Regulatory Action Level
SCLs: Soil Cleanup Level
SPCC: Spill Prevention Control and
Countermeasures
SVE: Soil Vapor Extraction
SVOCs: Semi-Volatile Organic Compounds
SWPPP: Stormwater Pollution Prevention Plan
TCLP: Toxicity Characteristic Leaching
Procedure (EPA Method SW-846 1311)
TOC: Top of Casing
TPH: Total Petroleum Hydrocarbons
USGS: United States Geological Survey
UST: Underground Storage Tank
UVF: Ultraviolet Fluorescence
VOCs: Volatile Organic Compounds
VPH: Volatile Petroleum Hydrocarbons

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
TABLE OF CONTENTS
SITE INFORMATION ............................................................................................................................ i
EXECUTIVE SUMMARY ....................................................................................................................... ii
ACRONYMS ....................................................................................................................................... iii
1.0 SITE HISTORY AND CHARACTERIZATION ...................................................................................1
2.0 PRESENTATION OF CURRENT SITE ASSESSMENT INFORMATION/ COMPARISON TO HISTORICAL
ASSESSMENT INFORMATION ...................................................................................................2
3.0 FREE PRODUCT REMOVAL ........................................................................................................4
4.0 NATURAL ATTENUATION / NATURAL SOURCE ZONE DEPLETION STATUS ..................................4
5.0 CONCLUSIONS .........................................................................................................................5
6.0 LIMITATIONS ...........................................................................................................................5
7.0 STATEMENTS AND CERTIFICATION ...........................................................................................5

FIGURES
Figure 1: Site Location Map
Figure 2: Site Vicinity Map
Figure 3: Site Map
Figure 4: Water Table Surface Map
Figure 5: Ground Water Quality Map
Figure 6: Toluene Isoconcentration Map
Figure 7: Contaminant Mass Area Map

TABLES
Table 1: UST Owner and Operator Information
Table 2: UST System Information
Table 3: Adjacent Property Owner Information
Table 4: Well Construction and Gauging Information
Table 5: Summary of Ground Water Sample Analytical Results

APPENDICES
Appendix A: State Correspondence
Appendix B: Laboratory Report – Ground Water Samples
Appendix C: Contaminant Mass Calculations
Appendix D: GSI Mann Kendall Toolkit for Plume Stability Analysis

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
1
1.0 SITE HISTORY AND CHARACTERIZATION
GRI presents the results of the October 2021 updated receptor survey and ground water sampling event
at the Westover Service Station site; located at 801 West Queen Street in Edenton, Chowan County, North
Carolina (Figure 1). These activities were conducted in accordance with GRI Proposal No. 21-600, which
was submitted to NCDEQ on September 23, 2021, and was approved as Task Authorization No. 13279-02
on September 28, 2021. State correspondence has been included as Appendix A.

The site is currently owned by Douglas and Delinah Baird and is operated as a general store, deli and
petroleum retail facility. During UST closure activities conducted in November 1994, a release was
confirmed. Currently, one 3,000-gallon gasoline and one 1,000-gallon gasoline USTs operated by Douglas
Baird are active at the site. According to available data, one 500-gallon gasoline UST and one 1,000-gallon
gasoline UST operated by E. T. Four, Inc. (North East Oil Company, Inc.) were removed from the site in
November 1994. During the November 1994 UST closure activities, one 550-gallon “ghost tank” of
unknown contents was removed from the site. Please note, separate Facility ID Numbers were assigned
to the UST systems owned by E. T. Four, Inc. (North East Oil Company) and Douglas Baird. UST
owner/operator information and UST system information are included as Tables 1 and 2, respectively.
The Registered Tank Reports are shown below:

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
2
The site and surrounding area are a mixture of single family residential and commercial properties. The
site is primarily capped with concrete and asphalt. The overall topography at the site is relatively flat.
Pembroke Creek is located approximately 290 feet north of the site. Eleven Type II monitoring wells
(MW-1 through MW-9, MW-11 and MW-12) and one Type III monitoring well (MW-10) were installed at
the site during previous ground water assessment activities.

According to available information, based on the site reconnaissance conducted by CES in July 2002, two
domestic water supply wells were identified within 1,500-feet of the site.

On April 12, 2021, receptor information was updated for the site. The two water supply wells observed
during the 2002 receptor survey were not located in April 2021. The site does not lie within a designated
wellhead protection area. Pembroke Creek, located within a 500-foot radius of the site, is classified by
NCDEQ as a Class B; NSW surface water. Municipal water is available to the site and surrounding
properties. Adjacent property owner information is presented in Table 3. A Site Vicinity Map showing
the adjacent properties has been included as Figure 2. A Site Map showing the locations of the monitoring
wells and the structures on-site has been included as Figure 3.

According to the NCDEQ incident database and available information, a CAP has not been completed for
this incident.
2.0 PRESENTATION OF CURRENT SITE ASSESSMENT INFORMATION/ COMPARISON TO HISTORICAL
ASSESSMENT INFORMATION
On October 11, 2021, ten Type II monitoring wells (MW-1 through MW-9 and MW-12) and one Type III
monitoring well (MW-10) were gauged, purged and sampled in accordance with the NCDEQ guidelines.
Depths to ground water in the Type II monitoring wells ranged from 3.55 feet to 6.62 feet below the tops
of well casings. Ground water elevations in the Type II monitoring wells ranged from 94.09 feet to 94.42
feet. Ground water flow was generally to the north/northwest with a horizontal gradient of less than 0.01
feet per foot. The vertical gradient between paired wells MW-3 and MW-10 was approximately 0.02 feet
per foot in the downward direction. Please note, the depth to water in MW-6 is considered to be
anomalous and was not considered when calculating the hydraulic gradient or ground water flow
direction across the site. Well construction and gauging information is presented in Table 4. A Water
Table Surface Map based on the Type II monitoring wells is included as Figure 4. A summary of the current
ground water gauging data is shown below:
Well ID
Screened
Interval
(x to y ft.
BGS)
Bottom
of Well
(ft. BGS)
Top of
Casing
Elevation
(ft.)
Depth to
Water from
Top of Casing
(feet)
Free
Product
Thickness
(ft.)
Ground
Water
Elevation
(ft.)
MW-1 5 - 15 15 100.00 5.58 --- 94.42
MW-2 2 - 12 12 99.93 5.70 --- 94.23
MW-3 2 – 12 12 100.04 5.92 --- 94.12
MW-4 5 – 15 15 100.29 5.99 --- 94.30
MW-5 5 - 15 15 100.02 5.84 --- 94.18
MW-6 5 - 15 15 98.93 4.10 --- 94.83
MW-7 5 - 15 15 97.64 3.55 --- 94.09

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
3
Well ID
Screened
Interval
(x to y ft.
BGS)
Bottom
of Well
(ft. BGS)
Top of
Casing
Elevation
(ft.)
Depth to
Water from
Top of Casing
(feet)
Free
Product
Thickness
(ft.)
Ground
Water
Elevation
(ft.)
MW-8 5 - 15 15 99.34 5.10 --- 94.24
MW-9 5 - 15 15 99.67 5.35 --- 94.32
MW-10 30 - 35 35 99.92 6.25 --- 93.67
MW-12 5 - 15 15 100.79 6.62 --- 94.17

Ground water samples collected from the monitoring wells were submitted for laboratory analyses using
EPA Method 6200B. Concentrations of individual BTEX constituents, naphthalene, isopropylbenzene,
methylene chloride, n-propylbenzene, 1,2,4-trimethylbenzene and/or 1,3,5-trimethylbenzene that
exceeded the MACs were reported in the ground water samples collected from MW-1, MW-2, MW-3,
MW-6 and MW-7. All of the reported contaminant concentrations were less than the GCLs.
Concentrations of toluene that exceeded 10 x the 2B Surface Water standard were reported in the ground
water samples collected from MW-1, MW-2 and MW-3. A summary of the analytical results for ground
water samples collected on October 11, 2021 is presented in Table 5. A Ground Water Quality Map based
on the October 2021 data is included as Figure 5. A contaminant specific isoconcentration map for toluene
is included as Figure 6. A complete report of laboratory analyses of the ground water samples collected
from the monitoring wells during the October 2021 sampling event has been included as Appendix B. A
summary of the current ground water analytical data is shown below:

Contaminant
of Concern  Benzene Toluene Ethylbenzene Xylenes MTBE Naphthalene Well
ID
MACs (μg/l) 1 600 600 500 20 6
GCL (μg/l) 5,000 260,000 84,500 85,500 20,000 6,000
10 x 2B (μg/l) 510 110 NE NE NE NE
MW-1 <63 1,110 1,500 17,280 <63 1,040
MW-2 <130 516 1,480 12,460 <130 1,070
MW-3 <130 1,590 2,470 13,420 <130 1,150
MW-4 <0.13 <0.13 <0.13 0.20 J <0.13 1.7
MW-5 <0.31 <0.31 0.67 J 2.43 J <0.31 5.2
MW-6 35.4 11.3 172 172.1 <0.63 76.7
MW-7 1.1 0.95 5.7 11.64 <0.13 11.4
MW-8 <0.13 <0.13 0.87 <0.25 <0.13 0.58
MW-9 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13
MW-10 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13
MW-12 <0.13 <0.13 2.7 10.8 <0.13 6.0

The baseline contaminant mass at the site was determined based on the total BTEX, MTBE and
naphthalene concentrations from the April 2021 ground water sampling event as well as the maximum
historical water column height observed in each area. The contaminant plume was divided into one area
(Area 1) based on the toluene concentrations during the April 2021 ground water sampling event. The
contaminant mass at the site has increased by 88% since April 2021. Contaminant mass calculations have

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
4
been included as Appendix C. A map of the contaminant mass area has been included as Figure 7. A chart
depicting the overall trend in contaminant mass and water column height is shown below:

The site is located in the Coastal Plain Physiographic Province of North Carolina. The water table has a
seasonal high depth to water of approximately 2.5 to 7 feet BGS.

Since a CAP has not been prepared for the site, contaminant reduction milestones have not been
established.

A GSI Mann-Kendall Toolkit for Plume Stability Analysis was completed for monitoring wells at the site
with reported toluene concentrations that exceeded 10 x the 2B Surface Water standard. The toluene
plume is stable in MW-1 and MW-2 and is probably decreasing in MW-3. A copy of the GSI Mann-Kendall
Toolkit for Plume Stability Analysis is included as Appendix D.
3.0 FREE PRODUCT REMOVAL
Free product has not been observed at the site.
4.0 NATURAL ATTENUATION / NATURAL SOURCE ZONE DEPLETION STATUS
No natural attenuation monitoring plan is currently in place at the site.

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Ground Water Monitoring Report
Prepared on: November 11, 2021 Westover Service Station
Project Manager: William Regenthal, P. G. GRI Project No. 5659
5
5.0 CONCLUSIONS
 Ground water flow during the October 2021 gauging event was generally to the north/northwest
with a horizontal gradient of less than 0.01 feet per foot. The vertical gradient between paired
wells MW-3 and MW-10 was approximately 0.02 feet per foot in the downward direction. The
depth to water in MW-6 was considered to be anomalous and was not considered when
calculating the hydraulic gradient or ground water flow direction.
 Concentrations of individual BTEX constituents, naphthalene, isopropylbenzene, methylene
chloride, n-propylbenzene, 1,2,4-trimethylbenzene and/or 1,3,5-trimethylbenzene that exceeded
the MACs were reported in the ground water samples collected from MW-1, MW-2, MW-3, MW-
6 and MW-7. Concentrations of toluene that exceeded 10 x the 2B Surface Water standard were
reported in the ground water samples collected from MW-1, MW-2 and MW-3. All of the reported
contaminant concentrations were less than the GCLs.
 The contaminant mass at the site has increased 88% since April 2021.
 A GSI Mann-Kendall Toolkit for Plume Stability Analysis was completed for the monitoring wells
with toluene above 10 x the 2B Surface Water standard. The contaminant plume is stable in MW-
1 and MW-2 and is probably decreasing in MW-3.
 Based on this information, the risk classification for the site should be reevaluated. A NRP for
ground water should be filed on the deed of the subject property and the incident should be
closed.
6.0 LIMITATIONS
This report has been prepared for the exclusive use of North East Oil Company, Inc. for specific application
to the referenced site in Chowan County, North Carolina. The assessment was conducted based on the
scope of work and level of effort desired by NCDEQ and with resources adequate only for that scope of
work. Our findings have been developed in accordance with generally accepted standards of
environmental practices in the State of North Carolina, available information, and our professional
judgment. No other warranty is expressed or implied.

The data that are presented in this report are indicative of conditions that existed at the precise locations
sampled and at the time the samples were collected. In addition, the data obtained from samples would
be interpreted as being meaningful with respect to parameters indicated in the laboratory report. No
additional information can logically be inferred from these data.
7.0 STATEMENTS AND CERTIFICATION
1 Enter the date the monitoring report was due. n/a Will this report be submitted after the
established due date?
YES NO
2 Was any required information from the above template missing from this report? YES NO
IF the answer to question #1 or# 2 is “YES”, please provide additional information in this cell to explain
what was missing and why.

FIGURES
SITE LOCATIONFigure 1 Site Location Westover Service Station 801 West Queen StreetEdenton, North CarolinaChowan CountyIncident No. 13279GRI Project No. 5659500 M2000 FTDate: 04/25/2021Location: 36.056606° N -76.629877° W Dad
SITE
780405088222
780405084202
7804050747257 8 0 4 0 5 0 7 6 6 2 7780405075765
780405072675
780405074652
780405073724
Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), NGCC, ©OpenStreetMap contributors, and the GIS User Community
1,500-FOOT RADIUS
1,000-FOOT RADIUS
250-FOOT RADIUS
FIGURE 2: SITE VICINITY MAPWESTOVER SERVICE STATION801 WEST QUEEN STREETEDENTON, CHOWAN COUNTYNORTH CAROLINAINCIDENT NO. 13279GRI PROJECT NO. 5659
PREPARED BY:GEOLOGICAL RESOURCES, INC.APRIL 8, 2021
³
0 300150
Feet1 inch = 300 feet
NOTE: Based on Chowan County, NC GIS website
500-FOOT RADIUS

TABLES
UST ID Number 1,1B Facility ID Number
Owner or Operator?
Owner/Operator
UST ID Number 1,2 Facility ID Number
Owner or Operator?
Owner/Operator
801 W Queen Street, Edenton, NC 27932 252-482-3323
Telephone Number
TABLE 1
UST OWNER/OPERATOR INFORMATION
WESTOVER SERVICE STATION (INCIDENT NO. 13279)
00-0-0000034396
Name of Owner or Operator Dates of Ownership / Operation
Douglas D. Baird 08/06/2009 - Current
Address
E T Four, Inc.01/01/1983 - Current
Post Office Box 1386, Ahoskie, NC 27910
00-0-0000012050
Name of Owner or Operator Dates of Ownership / Operation
Address Telephone Number
252-862-0236
Page 1 of 1
Date: 04/08/21
Was Release
Associated
with UST
System?
(Yes / No)
1 Gasoline 500 04/19/1968 Single Wall Steel Unknown Single Wall Steel Removed
(11/08/1994)Yes
2 Gasoline 1,000 04/19/1971 Single Wall Steel Unknown Single Wall Steel Removed
(11/08/1994)Yes
Was Release
Associated
with UST
System?
(Yes / No)
1 Gasoline 3,000 02/03/1995 Single Wall Steel Unknown Single Wall Steel Active No
1B Gasoline 1,000 02/03/1995 Single Wall Steel Unknown Single Wall Steel Active No
Notes:
• FRP: Fiberglass reinforced plastic.
Tank
Dimensions
Description of
Associated
Product Piping
and
Pumps
Status
of
UST
Facility ID # : 00-0-0000034396
UST
ID
No.
Current
or Most
Recent
Contents
Capacity
(gallons)
Date
Installed
Construction
Details
Tank
Dimensions
Description of
Associated
Product Piping
and
Pumps
Status
of
UST
TABLE 2
UST SYSTEM INFORMATION
WESTOVER SERVICE STATION (INCIDENT NO. 13279)
Facility ID # : 00-0-0000012050
UST
ID
No.
Current
or Most
Recent
Contents
Capacity
(gallons)
Date
Installed
Construction
Details
Page 1 of 1
Date: 04/19/2021 Facility ID # : 0-012050
Parcel Number Owner Name Address
7804-0507-4725 (Site)
7804-0507-4652
7804-0507-3724 Ira F. and Rebecca Fenimore 4290 Monterey Drive
Florence, SC 29501
7804-0507-2675 Jimmie M. Parrish, III 168 Schooner Landing Drive
Edenton, NC 27932
7804-0508-4202 Marshall and Teri Williford 111 Pembroke Circle
Edenton, NC 27932
7804-0507-5765
7804-0507-6627
Note:
• Properties are keyed to Figure 2.
Frances M. Ward 715 West Queen Street
Edenton, NC 27932
TABLE 3
ADJACENT PROPERTY OWNER INFORMATION
WESTOVER SERVICE STATION (INCIDENT NO. 13279)
Douglas D. and Delinah Baird 104 Leigh Street
Edenton, NC 27932
Page 1 of 1
Date: 10/13/2021
Well ID
Date
Installed
(m/dd/yy)
Date Water
Level
Measured
(m/dd/yy)
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
(feet)
Free Product
Thickness
(ft.)
Ground
Water
Elevation (ft.)
Comments
04/12/21 3.60 ---96.40
10/11/21 5.58 ---94.42
04/12/21 3.74 ---96.19
10/11/21 5.70 ---94.23
04/12/21 3.91 ---96.13
10/11/21 5.92 ---94.12
04/12/21 4.05 ---96.24
10/11/21 5.99 ---94.30
04/12/21 3.89 ---96.13
10/11/21 5.84 ---94.18
04/12/21 2.87 ---96.06
10/11/21 4.10 ---94.83
04/12/21 1.70 ---95.94
10/11/21 3.55 ---94.09
04/12/21 3.11 ---96.23
10/11/21 5.10 ---94.24
04/12/21 3.33 ---96.34
10/11/21 5.35 ---94.32
04/12/21 4.58 ---95.34
10/11/21 6.25 ---93.67
MW-11 01/03/03 04/12/21 5 5 - 15 15 96.38 NM ---NM Not located
04/12/21 4.82 ---95.97
10/11/21 6.62 ---94.17
Notes:
TABLE 4
WELL CONSTRUCTION AND GAUGING INFORMATION
WESTOVER SERVICE STATION (INCIDENT NO. 13279)
Facility ID # : 00-0-0000012050
• ft BGS : feet below ground surface.
• NM : Not measured.
• Elevation relative to an arbitraty datum of 100.00 feet established by the previous consultant.
07/08/02MW-8
07/03/02MW-7
07/03/02MW-6
07/08/02MW-5
07/03/02MW-4
09/05/96MW-3
09/05/96MW-2
09/05/96MW-1
01/03/03MW-12
07/09/02MW-10
07/08/02MW-9
100.00155 - 155
5 - 15 15 100.29
100.04122 - 122
99.93122 - 122
5
30 - 3530
99.67155 - 155
97.6415
15 98.93
99.9235
100.02155 - 15
5 -15
5
5
5
5
5
5 - 15
5 - 15
100.79155 - 15
99.3415
Page 1 of 1
Well
ID
Date
Collected
(mm/dd/yy)
1 600 600 500 20 6 70 70 400 400
5,000 260,000 80,000 50,000 20,000 6,000 30,500 26,100 28,500 24,100
510 110 NE NE NE NE NE NE NE NE
10/11/21 <63 1,110 1,500 17,280 <63 1,040 136 J 317 3,880 1,050
10/11/21 <130 516 1,480 12,460 <130 1,070 177 J 468 J 3,410 834
10/11/21 <130 1,590 2,470 13,420 <130 1,150 235 J 592 4,260 1,070
10/11/21 <0.13 <0.13 <0.13 0.20 J <0.13 1.7 8.6 20.7 96.3 E 9.2
10/11/21 <0.31 <0.31 0.67 J 2.43 J <0.31 5.2 3.9 15.6 119 29.6
10/11/21 35.4 11.3 172 172.1 <0.63 76.7 25.7 62.5 135 2.4 J
10/11/21 1.1 0.95 5.7 11.64 <0.13 11.4 10.4 10.8 0.42 J 0.36 J
10/11/21 <0.13 <0.13 0.87 <0.25 <0.13 0.58 8.8 36.3 48.2 14.7
10/11/21 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13
10/11/21 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13
10/11/21 <0.13 <0.13 2.7 10.8 <0.13 6.0 13.5 37.1 135 E 42.7
Notes:
surface water. Class C Standards, which are more stringent, are used.
the MACs were reported in the ground water sample collected on 10/11/21.
TABLE 5
SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS
WESTOVER SERVICE STATION (INCIDENT NO. 13279)
Date: 11/05/21
Analytical Method
EPA Method 6200B
Facility ID #: 00-0-0000012050
NaphthaleneIsopropylbenzenen-Propylbenzene• Results reported in µg/l (micrograms per liter)
• MAC: Maximum Allowable Concenration as specified in T15A NCAC 2L.0202.
10 x 2B Surface Water Std.1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneContaminant of Concern
BenzeneTolueneEthylbenzeneXylenesMTBEMACs (μg/l)
GCL (μg/l)
• GCL: Gross contamination level.
• NE: Standard not established.
• < : Less than the method detection limit specified in the laboratory report.
• NS: Not sampled.
• NR: Not requested.
• 10 x 2B Surface Water Std.: Value is ten times the 2B surface water standard for Pembroke Creek, a Class B, NSW
• Concentrations of methylene chloride (1,260 B µg/l in MW-1, 2,590 B µg/l in MW-2 and 2,810 µg/l in MW-3) that exceeded
• For other compounds reported which did not exceed the MACs, refer to the laboratory reports.
• Concentrations in italics indicate the GCLs were below the reported concentrations.
• Concentrations in bold face type indicate the MACs were below the reported concentrations.
• J: Estimated value.
• Concentrations which are underlined exceeded the 2B surface water standards by a factor of 10.
MW-1
MW-2
MW-3
MW-4
MW-5
MW-6
MW-7
MW-9
MW-10
MW-12
MW-8
Page 1 of 1

APPENDICES

APPENDIX A
State Correspondence
5659 Received SEP 28 2021

APPENDIX B
Laboratory Report – Ground Water Samples
11/03/21
Technical Report for
GRI (Geological Resources Inc.)
Westorer Service Station; 801 W Queen St, Edenton, NC
13279/5659
SGS Job Number: FA89760
Sampling Date: 10/11/21
Report to:
GRI
3502 Hayes Rd
Monroe, NC 28110
[e-mail]; [e-mail];
[e-mail]; [e-mail]
ATTN: William Regenthall
Total number of pages in report:
Certifications: FL(E83510), LA(03051), KS(E-10327), NC(573), NJ(FL002), NY(12022), SC(96038001)
DoD ELAP(ANAB L2229), AZ(AZ0806), CA(2937), TX(T104704404), PA(68-03573), VA(460177),
AL, AK, AR, CT, IA, KY, MA, MI. MS, ND, NH, NV, OK, OR, UT, VT, WA, WV
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 4405 Vineland Road • Suite C-15 • Orlando, FL 32811 • tel: [phone] • fax: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Muna Mohammed 407-425-6700
Norm Farmer
Technical Director
Orlando, FL 11/03/21
e-Hardcopy 2.0
Automated Report
52
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
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1 of 52
FA89760
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................8
3.1: FA89760-1: MW-1 ........................................................................................................9
3.2: FA89760-2: MW-2 ........................................................................................................11
3.3: FA89760-3: MW-3 ........................................................................................................13
3.4: FA89760-4: MW-4 ........................................................................................................15
3.5: FA89760-5: MW-5 ........................................................................................................17
3.6: FA89760-6: MW-6 ........................................................................................................20
3.7: FA89760-7: MW-7 ........................................................................................................23
3.8: FA89760-8: MW-8 ........................................................................................................25
3.9: FA89760-9: MW-9 ........................................................................................................27
3.10: FA89760-10: MW-10 ..................................................................................................29
3.11: FA89760-11: MW-12 ..................................................................................................31
Section 4: Misc. Forms ............................................................................................................33
4.1: Chain of Custody ...........................................................................................................34
Section 5: MS Volatiles - QC Data Summaries .....................................................................36
5.1: Method Blank Summary ................................................................................................37
5.2: Blank Spike Summary ...................................................................................................43
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................49 123452 of 52
FA89760
SGS North America Inc.
Sample Summary
GRI (Geological Resources Inc.)
Job No:FA89760
Westorer Service Station; 801 W Queen St, Edenton, NC
Project No: 13279/5659
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
FA89760-1 10/11/21 14:20 BH 10/12/21 AQ Ground Water MW-1
FA89760-2 10/11/21 14:15 BH 10/12/21 AQ Ground Water MW-2
FA89760-3 10/11/21 14:25 BH 10/12/21 AQ Ground Water MW-3
FA89760-4 10/11/21 14:50 BH 10/12/21 AQ Ground Water MW-4
FA89760-5 10/11/21 15:00 BH 10/12/21 AQ Ground Water MW-5
FA89760-6 10/11/21 15:20 BH 10/12/21 AQ Ground Water MW-6
FA89760-7 10/11/21 15:30 BH 10/12/21 AQ Ground Water MW-7
FA89760-8 10/11/21 14:10 BH 10/12/21 AQ Ground Water MW-8
FA89760-9 10/11/21 14:00 BH 10/12/21 AQ Ground Water MW-9
FA89760-10 10/11/21 14:30 BH 10/12/21 AQ Ground Water MW-10
FA89760-11 10/11/21 15:10 BH 10/12/21 AQ Ground Water MW-12
3 of 52
FA897601
Summary of Hits Page 1 of 4
Job Number:FA89760
Account:GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Collected:10/11/21
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
FA89760-1 MW-1
Ethylbenzene a 1500 250 63 ug/l SM 6200B
Isopropylbenzene a 136 J 250 63 ug/l SM 6200B
Methylene Chloride b 1260 B 1000 500 ug/l SM 6200B
Naphthalene a 1040 250 63 ug/l SM 6200B
n-Propylbenzene a 317 250 63 ug/l SM 6200B
Toluene a 1110 250 63 ug/l SM 6200B
1,2,4-Trimethylbenzene a 3880 250 63 ug/l SM 6200B
1,3,5-Trimethylbenzene a 1050 250 63 ug/l SM 6200B
m,p-Xylene a 11400 500 63 ug/l SM 6200B
o-Xylene a 5880 250 63 ug/l SM 6200B
FA89760-2 MW-2
Ethylbenzene a 1480 500 130 ug/l SM 6200B
Isopropylbenzene a 177 J 500 130 ug/l SM 6200B
Methylene Chloride b 2590 B 2000 1000 ug/l SM 6200B
Naphthalene a 1070 500 130 ug/l SM 6200B
n-Propylbenzene a 468 J 500 130 ug/l SM 6200B
Toluene a 516 500 130 ug/l SM 6200B
1,2,4-Trimethylbenzene a 3410 500 130 ug/l SM 6200B
1,3,5-Trimethylbenzene a 834 500 130 ug/l SM 6200B
m,p-Xylene a 8500 1000 130 ug/l SM 6200B
o-Xylene a 3960 500 130 ug/l SM 6200B
FA89760-3 MW-3
Ethylbenzene a 2470 500 130 ug/l SM 6200B
Isopropylbenzene a 235 J 500 130 ug/l SM 6200B
Methylene Chloride b 2810 B 2000 1000 ug/l SM 6200B
Naphthalene a 1150 500 130 ug/l SM 6200B
n-Propylbenzene a 592 500 130 ug/l SM 6200B
Toluene a 1590 500 130 ug/l SM 6200B
1,2,4-Trimethylbenzene a 4260 500 130 ug/l SM 6200B
1,3,5-Trimethylbenzene a 1070 500 130 ug/l SM 6200B
m,p-Xylene a 9650 1000 130 ug/l SM 6200B
o-Xylene a 3770 500 130 ug/l SM 6200B
FA89760-4 MW-4
n-Butylbenzene 3.2 0.50 0.13 ug/l SM 6200B
sec-Butylbenzene 4.0 0.50 0.13 ug/l SM 6200B
Chloroethane 0.24 J 0.50 0.20 ug/l SM 6200B
Chloroform 0.21 J 0.50 0.13 ug/l SM 6200B
4 of 52
FA897602
Summary of Hits Page 2 of 4
Job Number:FA89760
Account:GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Collected:10/11/21
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Isopropylbenzene 8.6 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 0.86 0.50 0.13 ug/l SM 6200B
Naphthalene 1.7 0.50 0.13 ug/l SM 6200B
n-Propylbenzene 20.7 0.50 0.13 ug/l SM 6200B
1,2,4-Trimethylbenzene c 96.3 E 0.50 0.13 ug/l SM 6200B
1,3,5-Trimethylbenzene 9.2 0.50 0.13 ug/l SM 6200B
o-Xylene 0.20 J 0.50 0.13 ug/l SM 6200B
FA89760-5 MW-5
n-Butylbenzene d 1.7 1.3 0.31 ug/l SM 6200B
sec-Butylbenzene d 2.2 1.3 0.31 ug/l SM 6200B
Ethylbenzene d 0.67 J 1.3 0.31 ug/l SM 6200B
Isopropylbenzene d 3.9 1.3 0.31 ug/l SM 6200B
p-Isopropyltoluene d 0.55 J 1.3 0.31 ug/l SM 6200B
Naphthalene d 5.2 1.3 0.31 ug/l SM 6200B
n-Propylbenzene d 15.6 1.3 0.31 ug/l SM 6200B
1,2,4-Trimethylbenzene d 119 1.3 0.31 ug/l SM 6200B
1,3,5-Trimethylbenzene d 29.6 1.3 0.31 ug/l SM 6200B
m,p-Xylene d 1.7 J 2.5 0.31 ug/l SM 6200B
o-Xylene d 0.73 J 1.3 0.31 ug/l SM 6200B
FA89760-6 MW-6
Benzene d 35.4 2.5 0.63 ug/l SM 6200B
n-Butylbenzene d 1.1 J 2.5 0.63 ug/l SM 6200B
sec-Butylbenzene d 2.6 2.5 0.63 ug/l SM 6200B
Chloroethane e 1.0 J 2.5 1.0 ug/l SM 6200B
Ethylbenzene d 172 2.5 0.63 ug/l SM 6200B
Isopropylbenzene d 25.7 2.5 0.63 ug/l SM 6200B
Naphthalene d 76.7 2.5 0.63 ug/l SM 6200B
n-Propylbenzene d 62.5 2.5 0.63 ug/l SM 6200B
Toluene d 11.3 2.5 0.63 ug/l SM 6200B
1,2,4-Trimethylbenzene d 135 2.5 0.63 ug/l SM 6200B
1,3,5-Trimethylbenzene d 2.4 J 2.5 0.63 ug/l SM 6200B
m,p-Xylene d 151 5.0 0.63 ug/l SM 6200B
o-Xylene d 21.1 2.5 0.63 ug/l SM 6200B
FA89760-7 MW-7
Benzene 1.1 0.50 0.13 ug/l SM 6200B
n-Butylbenzene 0.34 J 0.50 0.13 ug/l SM 6200B
sec-Butylbenzene 1.1 0.50 0.13 ug/l SM 6200B
Ethylbenzene 5.7 0.50 0.13 ug/l SM 6200B
Isopropylbenzene 10.4 0.50 0.13 ug/l SM 6200B
5 of 52
FA897602
Summary of Hits Page 3 of 4
Job Number:FA89760
Account:GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Collected:10/11/21
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Naphthalene 11.4 0.50 0.13 ug/l SM 6200B
n-Propylbenzene 10.8 0.50 0.13 ug/l SM 6200B
Toluene 0.95 0.50 0.13 ug/l SM 6200B
1,2,4-Trimethylbenzene 0.42 J 0.50 0.13 ug/l SM 6200B
1,3,5-Trimethylbenzene 0.36 J 0.50 0.13 ug/l SM 6200B
m,p-Xylene 11.2 1.0 0.13 ug/l SM 6200B
o-Xylene 0.44 J 0.50 0.13 ug/l SM 6200B
FA89760-8 MW-8
n-Butylbenzene 2.7 0.50 0.13 ug/l SM 6200B
sec-Butylbenzene 2.7 0.50 0.13 ug/l SM 6200B
Chloroethane 0.90 0.50 0.20 ug/l SM 6200B
Ethylbenzene 0.87 0.50 0.13 ug/l SM 6200B
Isopropylbenzene 8.8 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 0.75 0.50 0.13 ug/l SM 6200B
Naphthalene 0.58 0.50 0.13 ug/l SM 6200B
n-Propylbenzene 36.3 0.50 0.13 ug/l SM 6200B
1,2,4-Trimethylbenzene 48.2 0.50 0.13 ug/l SM 6200B
1,3,5-Trimethylbenzene 14.7 0.50 0.13 ug/l SM 6200B
FA89760-9 MW-9
No hits reported in this sample.
FA89760-10 MW-10
Chloroform 0.25 J 0.50 0.13 ug/l SM 6200B
FA89760-11 MW-12
n-Butylbenzene 2.6 0.50 0.13 ug/l SM 6200B
sec-Butylbenzene 2.9 0.50 0.13 ug/l SM 6200B
Chloroethane 0.35 J 0.50 0.20 ug/l SM 6200B
Ethylbenzene 2.7 0.50 0.13 ug/l SM 6200B
Isopropylbenzene 13.5 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 1.9 0.50 0.13 ug/l SM 6200B
Naphthalene 6.0 0.50 0.13 ug/l SM 6200B
n-Propylbenzene 37.1 0.50 0.13 ug/l SM 6200B
1,2,4-Trimethylbenzene c 135 E 0.50 0.13 ug/l SM 6200B
1,3,5-Trimethylbenzene 42.7 0.50 0.13 ug/l SM 6200B
m,p-Xylene 9.3 1.0 0.13 ug/l SM 6200B
o-Xylene 1.5 0.50 0.13 ug/l SM 6200B
(a) Associated internal standard response outside control limits. Confirmed by reanalysis.
6 of 52
FA897602
Summary of Hits Page 4 of 4
Job Number:FA89760
Account:GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Collected:10/11/21
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
(b) Associated internal standard response outside control limits. Confirmed by reanalysis. Suspected laboratory
contaminant.
(c) Confirmed by reanalysis beyond hold-time.
(d) Sample re-analyzed beyond hold time; reported results are considered minimum values.
(e) Sample re-analyzed beyond hold time; reported results are considered minimum values. Associated CCV and ECC
outside of control limits high.
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Sample Results
Report of Analysis
Orlando, FL
Section 3
8 of 52
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SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-1
Lab Sample ID:FA89760-1 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a E109085.D 500 10/22/21 19:52 JL n/a n/a VE2568
Run #2 b E109113.D 250 10/25/21 19:28 JL n/a n/a VE2569
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 250 63 ug/l
108-86-1 Bromobenzene ND 250 63 ug/l
74-97-5 Bromochloromethane ND 250 63 ug/l
75-27-4 Bromodichloromethane ND 250 63 ug/l
75-25-2 Bromoform ND 250 63 ug/l
104-51-8 n-Butylbenzene ND 250 63 ug/l
135-98-8 sec-Butylbenzene ND 250 63 ug/l
98-06-6 tert-Butylbenzene ND 250 63 ug/l
56-23-5 Carbon Tetrachloride ND 250 63 ug/l
108-90-7 Chlorobenzene ND 250 63 ug/l
75-00-3 Chloroethane ND 250 100 ug/l
67-66-3 Chloroform ND 250 63 ug/l
95-49-8 o-Chlorotoluene ND 250 63 ug/l
106-43-4 p-Chlorotoluene ND 250 63 ug/l
124-48-1 Dibromochloromethane ND 250 63 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 250 120 ug/l
106-93-4 1,2-Dibromoethane ND 250 63 ug/l
75-71-8 Dichlorodifluoromethane ND 250 100 ug/l
95-50-1 1,2-Dichlorobenzene ND 250 63 ug/l
541-73-1 1,3-Dichlorobenzene ND 250 63 ug/l
106-46-7 1,4-Dichlorobenzene ND 250 63 ug/l
75-34-3 1,1-Dichloroethane ND 250 63 ug/l
107-06-2 1,2-Dichloroethane ND 250 63 ug/l
75-35-4 1,1-Dichloroethylene ND 250 63 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 250 63 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 250 63 ug/l
78-87-5 1,2-Dichloropropane ND 250 63 ug/l
142-28-9 1,3-Dichloropropane ND 250 63 ug/l
594-20-7 2,2-Dichloropropane ND 250 63 ug/l
563-58-6 1,1-Dichloropropene ND 250 63 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 250 63 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 250 63 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
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FA8976033.1
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Report of Analysis Page 2 of 2
Client Sample ID:MW-1
Lab Sample ID:FA89760-1 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 250 63 ug/l
100-41-4 Ethylbenzene 1500 250 63 ug/l
87-68-3 Hexachlorobutadiene ND 250 63 ug/l
98-82-8 Isopropylbenzene 136 250 63 ug/l J
99-87-6 p-Isopropyltoluene ND 250 63 ug/l
74-83-9 Methyl Bromide ND 250 100 ug/l
74-87-3 Methyl Chloride ND 250 100 ug/l
74-95-3 Methylene Bromide ND 250 63 ug/l
75-09-2 Methylene Chloride c 1260 1000 500 ug/l B
1634-04-4 Methyl Tert Butyl Ether ND 250 63 ug/l
91-20-3 Naphthalene 1040 250 63 ug/l
103-65-1 n-Propylbenzene 317 250 63 ug/l
100-42-5 Styrene ND 250 63 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 250 63 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 250 63 ug/l
127-18-4 Tetrachloroethylene ND 250 63 ug/l
108-88-3 Toluene 1110 250 63 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 250 63 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 250 63 ug/l
71-55-6 1,1,1-Trichloroethane ND 250 63 ug/l
79-00-5 1,1,2-Trichloroethane ND 250 63 ug/l
79-01-6 Trichloroethylene ND 250 63 ug/l
75-69-4 Trichlorofluoromethane ND 250 100 ug/l
96-18-4 1,2,3-Trichloropropane ND 250 63 ug/l
95-63-6 1,2,4-Trimethylbenzene 3880 250 63 ug/l
108-67-8 1,3,5-Trimethylbenzene 1050 250 63 ug/l
75-01-4 Vinyl Chloride ND 250 63 ug/l
m,p-Xylene 11400 500 63 ug/l
95-47-6 o-Xylene 5880 250 63 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 100%101%70-130%
17060-07-0 1,2-Dichloroethane-D4 96%105%70-130%
2037-26-5 Toluene-D8 95%100%70-130%
460-00-4 4-Bromofluorobenzene 102%101%70-130%
(a) Associated internal standard response outside control limits. Confirmed by reanalysis.
(b) Confirmation run for internal standard areas.
(c) Suspected laboratory contaminant.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
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FA8976033.1
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Report of Analysis Page 1 of 2
Client Sample ID:MW-2
Lab Sample ID:FA89760-2 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a E109086.D 1000 10/22/21 20:15 JL n/a n/a VE2568
Run #2 b E109114.D 100 10/25/21 19:50 JL n/a n/a VE2569
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 500 130 ug/l
108-86-1 Bromobenzene ND 500 130 ug/l
74-97-5 Bromochloromethane ND 500 130 ug/l
75-27-4 Bromodichloromethane ND 500 130 ug/l
75-25-2 Bromoform ND 500 130 ug/l
104-51-8 n-Butylbenzene ND 500 130 ug/l
135-98-8 sec-Butylbenzene ND 500 130 ug/l
98-06-6 tert-Butylbenzene ND 500 130 ug/l
56-23-5 Carbon Tetrachloride ND 500 130 ug/l
108-90-7 Chlorobenzene ND 500 130 ug/l
75-00-3 Chloroethane ND 500 200 ug/l
67-66-3 Chloroform ND 500 130 ug/l
95-49-8 o-Chlorotoluene ND 500 130 ug/l
106-43-4 p-Chlorotoluene ND 500 130 ug/l
124-48-1 Dibromochloromethane ND 500 130 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 500 250 ug/l
106-93-4 1,2-Dibromoethane ND 500 130 ug/l
75-71-8 Dichlorodifluoromethane ND 500 200 ug/l
95-50-1 1,2-Dichlorobenzene ND 500 130 ug/l
541-73-1 1,3-Dichlorobenzene ND 500 130 ug/l
106-46-7 1,4-Dichlorobenzene ND 500 130 ug/l
75-34-3 1,1-Dichloroethane ND 500 130 ug/l
107-06-2 1,2-Dichloroethane ND 500 130 ug/l
75-35-4 1,1-Dichloroethylene ND 500 130 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 500 130 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 500 130 ug/l
78-87-5 1,2-Dichloropropane ND 500 130 ug/l
142-28-9 1,3-Dichloropropane ND 500 130 ug/l
594-20-7 2,2-Dichloropropane ND 500 130 ug/l
563-58-6 1,1-Dichloropropene ND 500 130 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 500 130 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 500 130 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 52
FA8976033.2
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-2
Lab Sample ID:FA89760-2 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 500 130 ug/l
100-41-4 Ethylbenzene 1480 500 130 ug/l
87-68-3 Hexachlorobutadiene ND 500 130 ug/l
98-82-8 Isopropylbenzene 177 500 130 ug/l J
99-87-6 p-Isopropyltoluene ND 500 130 ug/l
74-83-9 Methyl Bromide ND 500 200 ug/l
74-87-3 Methyl Chloride ND 500 200 ug/l
74-95-3 Methylene Bromide ND 500 130 ug/l
75-09-2 Methylene Chloride c 2590 2000 1000 ug/l B
1634-04-4 Methyl Tert Butyl Ether ND 500 130 ug/l
91-20-3 Naphthalene 1070 500 130 ug/l
103-65-1 n-Propylbenzene 468 500 130 ug/l J
100-42-5 Styrene ND 500 130 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 500 130 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 500 130 ug/l
127-18-4 Tetrachloroethylene ND 500 130 ug/l
108-88-3 Toluene 516 500 130 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 500 130 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 500 130 ug/l
71-55-6 1,1,1-Trichloroethane ND 500 130 ug/l
79-00-5 1,1,2-Trichloroethane ND 500 130 ug/l
79-01-6 Trichloroethylene ND 500 130 ug/l
75-69-4 Trichlorofluoromethane ND 500 200 ug/l
96-18-4 1,2,3-Trichloropropane ND 500 130 ug/l
95-63-6 1,2,4-Trimethylbenzene 3410 500 130 ug/l
108-67-8 1,3,5-Trimethylbenzene 834 500 130 ug/l
75-01-4 Vinyl Chloride ND 500 130 ug/l
m,p-Xylene 8500 1000 130 ug/l
95-47-6 o-Xylene 3960 500 130 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 99%104%70-130%
17060-07-0 1,2-Dichloroethane-D4 101%108%70-130%
2037-26-5 Toluene-D8 98%98%70-130%
460-00-4 4-Bromofluorobenzene 102%100%70-130%
(a) Associated internal standard response outside control limits. Confirmed by reanalysis.
(b) Confirmation run for internal standard areas.
(c) Suspected laboratory contaminant.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
12 of 52
FA8976033.2
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-3
Lab Sample ID:FA89760-3 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a E109087.D 1000 10/22/21 20:37 JL n/a n/a VE2568
Run #2 b E109115.D 200 10/25/21 20:12 JL n/a n/a VE2569
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 500 130 ug/l
108-86-1 Bromobenzene ND 500 130 ug/l
74-97-5 Bromochloromethane ND 500 130 ug/l
75-27-4 Bromodichloromethane ND 500 130 ug/l
75-25-2 Bromoform ND 500 130 ug/l
104-51-8 n-Butylbenzene ND 500 130 ug/l
135-98-8 sec-Butylbenzene ND 500 130 ug/l
98-06-6 tert-Butylbenzene ND 500 130 ug/l
56-23-5 Carbon Tetrachloride ND 500 130 ug/l
108-90-7 Chlorobenzene ND 500 130 ug/l
75-00-3 Chloroethane ND 500 200 ug/l
67-66-3 Chloroform ND 500 130 ug/l
95-49-8 o-Chlorotoluene ND 500 130 ug/l
106-43-4 p-Chlorotoluene ND 500 130 ug/l
124-48-1 Dibromochloromethane ND 500 130 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 500 250 ug/l
106-93-4 1,2-Dibromoethane ND 500 130 ug/l
75-71-8 Dichlorodifluoromethane ND 500 200 ug/l
95-50-1 1,2-Dichlorobenzene ND 500 130 ug/l
541-73-1 1,3-Dichlorobenzene ND 500 130 ug/l
106-46-7 1,4-Dichlorobenzene ND 500 130 ug/l
75-34-3 1,1-Dichloroethane ND 500 130 ug/l
107-06-2 1,2-Dichloroethane ND 500 130 ug/l
75-35-4 1,1-Dichloroethylene ND 500 130 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 500 130 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 500 130 ug/l
78-87-5 1,2-Dichloropropane ND 500 130 ug/l
142-28-9 1,3-Dichloropropane ND 500 130 ug/l
594-20-7 2,2-Dichloropropane ND 500 130 ug/l
563-58-6 1,1-Dichloropropene ND 500 130 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 500 130 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 500 130 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 52
FA8976033.3
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-3
Lab Sample ID:FA89760-3 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 500 130 ug/l
100-41-4 Ethylbenzene 2470 500 130 ug/l
87-68-3 Hexachlorobutadiene ND 500 130 ug/l
98-82-8 Isopropylbenzene 235 500 130 ug/l J
99-87-6 p-Isopropyltoluene ND 500 130 ug/l
74-83-9 Methyl Bromide ND 500 200 ug/l
74-87-3 Methyl Chloride ND 500 200 ug/l
74-95-3 Methylene Bromide ND 500 130 ug/l
75-09-2 Methylene Chloride c 2810 2000 1000 ug/l B
1634-04-4 Methyl Tert Butyl Ether ND 500 130 ug/l
91-20-3 Naphthalene 1150 500 130 ug/l
103-65-1 n-Propylbenzene 592 500 130 ug/l
100-42-5 Styrene ND 500 130 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 500 130 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 500 130 ug/l
127-18-4 Tetrachloroethylene ND 500 130 ug/l
108-88-3 Toluene 1590 500 130 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 500 130 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 500 130 ug/l
71-55-6 1,1,1-Trichloroethane ND 500 130 ug/l
79-00-5 1,1,2-Trichloroethane ND 500 130 ug/l
79-01-6 Trichloroethylene ND 500 130 ug/l
75-69-4 Trichlorofluoromethane ND 500 200 ug/l
96-18-4 1,2,3-Trichloropropane ND 500 130 ug/l
95-63-6 1,2,4-Trimethylbenzene 4260 500 130 ug/l
108-67-8 1,3,5-Trimethylbenzene 1070 500 130 ug/l
75-01-4 Vinyl Chloride ND 500 130 ug/l
m,p-Xylene 9650 1000 130 ug/l
95-47-6 o-Xylene 3770 500 130 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 102%102%70-130%
17060-07-0 1,2-Dichloroethane-D4 102%106%70-130%
2037-26-5 Toluene-D8 98%98%70-130%
460-00-4 4-Bromofluorobenzene 98%102%70-130%
(a) Associated internal standard response outside control limits. Confirmed by reanalysis.
(b) Confirmation run for internal standard areas.
(c) Suspected laboratory contaminant.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 52
FA8976033.3
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-4
Lab Sample ID:FA89760-4 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0228245.D 1 10/25/21 14:08 JL n/a n/a VA2976
Run #2 a A0228290.D 5 10/26/21 18:54 JL n/a n/a VA2977
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene 3.2 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene 4.0 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane 0.24 0.50 0.20 ug/l J
67-66-3 Chloroform 0.21 0.50 0.13 ug/l J
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 52
FA8976033.4
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-4
Lab Sample ID:FA89760-4 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene 8.6 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 0.86 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene 1.7 0.50 0.13 ug/l
103-65-1 n-Propylbenzene 20.7 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene b 96.3 0.50 0.13 ug/l E
108-67-8 1,3,5-Trimethylbenzene 9.2 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene 0.20 0.50 0.13 ug/l J
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 104%112%70-130%
17060-07-0 1,2-Dichloroethane-D4 112%119%70-130%
2037-26-5 Toluene-D8 102%104%70-130%
460-00-4 4-Bromofluorobenzene 96%84%70-130%
(a) Confirmation run beyond holdtime.
(b) Confirmed by reanalysis beyond hold-time.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 52
FA8976033.4
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-5
Lab Sample ID:FA89760-5 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a A0228291.D 2.5 10/26/21 19:16 JL n/a n/a VA2977
Run #2 b A0228246.D 1 10/25/21 14:30 JL n/a n/a VA2976
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 1.3 0.31 ug/l
108-86-1 Bromobenzene ND 1.3 0.31 ug/l
74-97-5 Bromochloromethane ND 1.3 0.31 ug/l
75-27-4 Bromodichloromethane ND 1.3 0.31 ug/l
75-25-2 Bromoform ND 1.3 0.31 ug/l
104-51-8 n-Butylbenzene 1.7 1.3 0.31 ug/l
135-98-8 sec-Butylbenzene 2.2 1.3 0.31 ug/l
98-06-6 tert-Butylbenzene ND 1.3 0.31 ug/l
56-23-5 Carbon Tetrachloride ND 1.3 0.31 ug/l
108-90-7 Chlorobenzene ND 1.3 0.31 ug/l
75-00-3 Chloroethane c ND 1.3 0.50 ug/l
67-66-3 Chloroform ND 1.3 0.31 ug/l
95-49-8 o-Chlorotoluene ND 1.3 0.31 ug/l
106-43-4 p-Chlorotoluene ND 1.3 0.31 ug/l
124-48-1 Dibromochloromethane ND 1.3 0.31 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 1.3 0.62 ug/l
106-93-4 1,2-Dibromoethane ND 1.3 0.31 ug/l
75-71-8 Dichlorodifluoromethane d ND 1.3 0.50 ug/l
95-50-1 1,2-Dichlorobenzene ND 1.3 0.31 ug/l
541-73-1 1,3-Dichlorobenzene ND 1.3 0.31 ug/l
106-46-7 1,4-Dichlorobenzene ND 1.3 0.31 ug/l
75-34-3 1,1-Dichloroethane ND 1.3 0.31 ug/l
107-06-2 1,2-Dichloroethane ND 1.3 0.31 ug/l
75-35-4 1,1-Dichloroethylene ND 1.3 0.31 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 1.3 0.31 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 1.3 0.31 ug/l
78-87-5 1,2-Dichloropropane ND 1.3 0.31 ug/l
142-28-9 1,3-Dichloropropane ND 1.3 0.31 ug/l
594-20-7 2,2-Dichloropropane ND 1.3 0.31 ug/l
563-58-6 1,1-Dichloropropene ND 1.3 0.31 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 1.3 0.31 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 1.3 0.31 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
17 of 52
FA8976033.5
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-5
Lab Sample ID:FA89760-5 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 1.3 0.31 ug/l
100-41-4 Ethylbenzene 0.67 1.3 0.31 ug/l J
87-68-3 Hexachlorobutadiene ND 1.3 0.31 ug/l
98-82-8 Isopropylbenzene 3.9 1.3 0.31 ug/l
99-87-6 p-Isopropyltoluene 0.55 1.3 0.31 ug/l J
74-83-9 Methyl Bromide ND 1.3 0.50 ug/l
74-87-3 Methyl Chloride ND 1.3 0.50 ug/l
74-95-3 Methylene Bromide ND 1.3 0.31 ug/l
75-09-2 Methylene Chloride ND 5.0 2.5 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 1.3 0.31 ug/l
91-20-3 Naphthalene 5.2 1.3 0.31 ug/l
103-65-1 n-Propylbenzene 15.6 1.3 0.31 ug/l
100-42-5 Styrene ND 1.3 0.31 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 1.3 0.31 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 1.3 0.31 ug/l
127-18-4 Tetrachloroethylene ND 1.3 0.31 ug/l
108-88-3 Toluene ND 1.3 0.31 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 1.3 0.31 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 1.3 0.31 ug/l
71-55-6 1,1,1-Trichloroethane ND 1.3 0.31 ug/l
79-00-5 1,1,2-Trichloroethane ND 1.3 0.31 ug/l
79-01-6 Trichloroethylene ND 1.3 0.31 ug/l
75-69-4 Trichlorofluoromethane ND 1.3 0.50 ug/l
96-18-4 1,2,3-Trichloropropane ND 1.3 0.31 ug/l
95-63-6 1,2,4-Trimethylbenzene 119 1.3 0.31 ug/l
108-67-8 1,3,5-Trimethylbenzene 29.6 1.3 0.31 ug/l
75-01-4 Vinyl Chloride ND 1.3 0.31 ug/l
m,p-Xylene 1.7 2.5 0.31 ug/l J
95-47-6 o-Xylene 0.73 1.3 0.31 ug/l J
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 109%98%70-130%
17060-07-0 1,2-Dichloroethane-D4 115%107%70-130%
2037-26-5 Toluene-D8 105%95%70-130%
460-00-4 4-Bromofluorobenzene 89%104%70-130%
(a) Sample re-analyzed beyond hold time; reported results are considered minimum values.
(b) Internal standard areas outside method criteria. Confirmation run.
(c) Associated CCV and ECC outside of control limits high, sample was ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
18 of 52
FA8976033.5
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-5
Lab Sample ID:FA89760-5 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
(d) Associated CCV, BS, and ECC outside control limits high, sample was ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
19 of 52
FA8976033.5
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-6
Lab Sample ID:FA89760-6 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a A0228292.D 5 10/26/21 19:38 JL n/a n/a VA2977
Run #2 b A0228247.D 1 10/25/21 14:52 JL n/a n/a VA2976
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 35.4 2.5 0.63 ug/l
108-86-1 Bromobenzene ND 2.5 0.63 ug/l
74-97-5 Bromochloromethane ND 2.5 0.63 ug/l
75-27-4 Bromodichloromethane ND 2.5 0.63 ug/l
75-25-2 Bromoform ND 2.5 0.63 ug/l
104-51-8 n-Butylbenzene 1.1 2.5 0.63 ug/l J
135-98-8 sec-Butylbenzene 2.6 2.5 0.63 ug/l
98-06-6 tert-Butylbenzene ND 2.5 0.63 ug/l
56-23-5 Carbon Tetrachloride ND 2.5 0.63 ug/l
108-90-7 Chlorobenzene ND 2.5 0.63 ug/l
75-00-3 Chloroethane c 1.0 2.5 1.0 ug/l J
67-66-3 Chloroform ND 2.5 0.63 ug/l
95-49-8 o-Chlorotoluene ND 2.5 0.63 ug/l
106-43-4 p-Chlorotoluene ND 2.5 0.63 ug/l
124-48-1 Dibromochloromethane ND 2.5 0.63 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 2.5 1.2 ug/l
106-93-4 1,2-Dibromoethane ND 2.5 0.63 ug/l
75-71-8 Dichlorodifluoromethane d ND 2.5 1.0 ug/l
95-50-1 1,2-Dichlorobenzene ND 2.5 0.63 ug/l
541-73-1 1,3-Dichlorobenzene ND 2.5 0.63 ug/l
106-46-7 1,4-Dichlorobenzene ND 2.5 0.63 ug/l
75-34-3 1,1-Dichloroethane ND 2.5 0.63 ug/l
107-06-2 1,2-Dichloroethane ND 2.5 0.63 ug/l
75-35-4 1,1-Dichloroethylene ND 2.5 0.63 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 2.5 0.63 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 2.5 0.63 ug/l
78-87-5 1,2-Dichloropropane ND 2.5 0.63 ug/l
142-28-9 1,3-Dichloropropane ND 2.5 0.63 ug/l
594-20-7 2,2-Dichloropropane ND 2.5 0.63 ug/l
563-58-6 1,1-Dichloropropene ND 2.5 0.63 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 2.5 0.63 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 2.5 0.63 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
20 of 52
FA8976033.6
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-6
Lab Sample ID:FA89760-6 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 2.5 0.63 ug/l
100-41-4 Ethylbenzene 172 2.5 0.63 ug/l
87-68-3 Hexachlorobutadiene ND 2.5 0.63 ug/l
98-82-8 Isopropylbenzene 25.7 2.5 0.63 ug/l
99-87-6 p-Isopropyltoluene ND 2.5 0.63 ug/l
74-83-9 Methyl Bromide ND 2.5 1.0 ug/l
74-87-3 Methyl Chloride ND 2.5 1.0 ug/l
74-95-3 Methylene Bromide ND 2.5 0.63 ug/l
75-09-2 Methylene Chloride ND 10 5.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 2.5 0.63 ug/l
91-20-3 Naphthalene 76.7 2.5 0.63 ug/l
103-65-1 n-Propylbenzene 62.5 2.5 0.63 ug/l
100-42-5 Styrene ND 2.5 0.63 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 2.5 0.63 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 2.5 0.63 ug/l
127-18-4 Tetrachloroethylene ND 2.5 0.63 ug/l
108-88-3 Toluene 11.3 2.5 0.63 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 2.5 0.63 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 2.5 0.63 ug/l
71-55-6 1,1,1-Trichloroethane ND 2.5 0.63 ug/l
79-00-5 1,1,2-Trichloroethane ND 2.5 0.63 ug/l
79-01-6 Trichloroethylene ND 2.5 0.63 ug/l
75-69-4 Trichlorofluoromethane ND 2.5 1.0 ug/l
96-18-4 1,2,3-Trichloropropane ND 2.5 0.63 ug/l
95-63-6 1,2,4-Trimethylbenzene 135 2.5 0.63 ug/l
108-67-8 1,3,5-Trimethylbenzene 2.4 2.5 0.63 ug/l J
75-01-4 Vinyl Chloride ND 2.5 0.63 ug/l
m,p-Xylene 151 5.0 0.63 ug/l
95-47-6 o-Xylene 21.1 2.5 0.63 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 104%99%70-130%
17060-07-0 1,2-Dichloroethane-D4 114%102%70-130%
2037-26-5 Toluene-D8 96%97%70-130%
460-00-4 4-Bromofluorobenzene 98%105%70-130%
(a) Sample re-analyzed beyond hold time; reported results are considered minimum values.
(b) Internal standard areas outside method criteria. Confirmation run.
(c) Associated CCV and ECC outside of control limits high.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
21 of 52
FA8976033.6
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-6
Lab Sample ID:FA89760-6 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
(d) Associated CCV, BS, and ECC outside control limits high, sample was ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
22 of 52
FA8976033.6
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-7
Lab Sample ID:FA89760-7 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0228248.D 1 10/25/21 15:14 JL n/a n/a VA2976
Run #2 a A0228277.D 1 10/26/21 14:08 JL n/a n/a VA2977
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene 1.1 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene 0.34 0.50 0.13 ug/l J
135-98-8 sec-Butylbenzene 1.1 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
23 of 52
FA8976033.7
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-7
Lab Sample ID:FA89760-7 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene 5.7 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene 10.4 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene 11.4 0.50 0.13 ug/l
103-65-1 n-Propylbenzene 10.8 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene 0.95 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene 0.42 0.50 0.13 ug/l J
108-67-8 1,3,5-Trimethylbenzene 0.36 0.50 0.13 ug/l J
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene 11.2 1.0 0.13 ug/l
95-47-6 o-Xylene 0.44 0.50 0.13 ug/l J
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 99%105%70-130%
17060-07-0 1,2-Dichloroethane-D4 102%110%70-130%
2037-26-5 Toluene-D8 98%94%70-130%
460-00-4 4-Bromofluorobenzene 107%105%70-130%
(a) Confirmation run beyond holdtime.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
24 of 52
FA8976033.7
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-8
Lab Sample ID:FA89760-8 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0228249.D 1 10/25/21 15:36 JL n/a n/a VA2976
Run #2 a A0228278.D 1 10/26/21 14:30 JL n/a n/a VA2977
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene 2.7 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene 2.7 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane 0.90 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
25 of 52
FA8976033.8
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-8
Lab Sample ID:FA89760-8 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene 0.87 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene 8.8 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 0.75 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene 0.58 0.50 0.13 ug/l
103-65-1 n-Propylbenzene 36.3 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene 48.2 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene 14.7 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 99%103%70-130%
17060-07-0 1,2-Dichloroethane-D4 102%109%70-130%
2037-26-5 Toluene-D8 95%95%70-130%
460-00-4 4-Bromofluorobenzene 104%100%70-130%
(a) Confirmation run beyond holdtime.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
26 of 52
FA8976033.8
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-9
Lab Sample ID:FA89760-9 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0228250.D 1 10/25/21 15:58 JL n/a n/a VA2976
Run #2 a A0228279.D 1 10/26/21 14:52 JL n/a n/a VA2977
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
27 of 52
FA8976033.9
SGS North America Inc.
Report of Analysis Page 2 of 2
Client Sample ID:MW-9
Lab Sample ID:FA89760-9 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 98%102%70-130%
17060-07-0 1,2-Dichloroethane-D4 102%107%70-130%
2037-26-5 Toluene-D8 99%99%70-130%
460-00-4 4-Bromofluorobenzene 102%99%70-130%
(a) Confirmation run beyond holdtime.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
28 of 52
FA8976033.9
SGS North America Inc.
Report of Analysis Page 1 of 2
Client Sample ID:MW-10
Lab Sample ID:FA89760-10 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0228251.D 1 10/25/21 16:20 JL n/a n/a VA2976
Run #2 a A0228280.D 1 10/26/21 15:14 JL n/a n/a VA2977
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform 0.25 0.50 0.13 ug/l J
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
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Report of Analysis Page 2 of 2
Client Sample ID:MW-10
Lab Sample ID:FA89760-10 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 102%105%70-130%
17060-07-0 1,2-Dichloroethane-D4 102%109%70-130%
2037-26-5 Toluene-D8 102%101%70-130%
460-00-4 4-Bromofluorobenzene 103%100%70-130%
(a) Confirmation run beyond holdtime.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
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Report of Analysis Page 1 of 2
Client Sample ID:MW-12
Lab Sample ID:FA89760-11 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 A0228252.D 1 10/25/21 16:42 JL n/a n/a VA2976
Run #2 a A0228293.D 5 10/26/21 20:00 JL n/a n/a VA2977
Purge Volume
Run #1 10.0 ml
Run #2 10.0 ml
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene 2.6 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene 2.9 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane 0.35 0.50 0.20 ug/l J
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
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Report of Analysis Page 2 of 2
Client Sample ID:MW-12
Lab Sample ID:FA89760-11 Date Sampled:10/11/21
Matrix:AQ - Ground Water Date Received:10/12/21
Method:SM 6200B Percent Solids:n/a
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
VOA 6200B List
CAS No.Compound Result RL MDL Units Q
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene 2.7 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene 13.5 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 1.9 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene 6.0 0.50 0.13 ug/l
103-65-1 n-Propylbenzene 37.1 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene b 135 0.50 0.13 ug/l E
108-67-8 1,3,5-Trimethylbenzene 42.7 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene 9.3 1.0 0.13 ug/l
95-47-6 o-Xylene 1.5 0.50 0.13 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
1868-53-7 Dibromofluoromethane 96%104%70-130%
17060-07-0 1,2-Dichloroethane-D4 102%110%70-130%
2037-26-5 Toluene-D8 99%105%70-130%
460-00-4 4-Bromofluorobenzene 104%92%70-130%
(a) Confirmation run beyond holdtime.
(b) Confirmed by reanalysis beyond hold-time.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
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Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Orlando, FL
Section 4
33 of 52
FA897604
FA89760: Chain of Custody
Page 1 of 2
34 of 52
FA8976044.1
Job Number:FA89760 Client:GRI
Date / Time Received:10/12/2021 10:00:00 AM Delivery Method:FX
Project:WEST OUTER SERVICE
Airbill #'s:1009 6379 2057
Cooler Information
1. Custody Seals Present
2. Custody Seals Intact
4. Cooler temp verification
3. Temp criteria achieved
5. Cooler media
IR Gun
Ice (Bag)
Trip Blank Information
1. Trip Blank present / cooler
2. Trip Blank listed on COC
2. Samples preserved properly
Sample Information
1. Sample labels present on bottles
5. Sample recvd within HT
4. Condition of sample
3. Sufficient volume/containers recvd for analysis:
Intact
Comments
SM001Rev. Date 05/24/17
SGS Sample Receipt Summary
Cooler Temps (Raw Measured) °C:
Cooler Temps (Corrected) °C:
Cooler 1: (4.6);
Cooler 1: (4.8);
3. Type Of TB Received
W or S N/A
6. Dates/Times/IDs on COC match Sample Label
7. VOCs have headspace
8. Bottles received for unspecified tests
9. Compositing instructions clear
10. Voa Soil Kits/Jars received past 48hrs?
11. % Solids Jar received?
Misc. Information
25-Gram 5-GramNumber of Encores:Number of 5035 Field Kits:Number of Lab Filtered Metals:
Test Strip Lot #s:pH 0-3 230315 pH 10-12 219813A Other: (Specify)
Y or N N/A
Y or N
Therm ID:IR 1; Therm CF:0.2; # of Coolers:1
Y or N N/A
12. Residual Chlorine Present?
Residual Chlorine Test Strip Lot #:
Technician:Reviewer:PETERH Date:Date:10/12/2021 10:00:00
FA89760: Chain of Custody
Page 2 of 2
35 of 52
FA8976044.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Orlando, FL
Section 5
36 of 52
FA897605
Method Blank Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2568-MB a E109067.D 1 10/22/21 JL n/a n/a VE2568
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-1, FA89760-2, FA89760-3
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
37 of 52
FA8976055.1.1
Method Blank Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2568-MB a E109067.D 1 10/22/21 JL n/a n/a VE2568
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-1, FA89760-2, FA89760-3
CAS No.Compound Result RL MDL Units Q
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride 2.1 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
CAS No.Surrogate Recoveries Limits
1868-53-7 Dibromofluoromethane 101%70-130%
17060-07-0 1,2-Dichloroethane-D4 104%70-130%
2037-26-5 Toluene-D8 97%70-130%
460-00-4 4-Bromofluorobenzene 106%70-130%
(a) Associated internal standard response outside control limits.
38 of 52
FA8976055.1.1
Method Blank Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2976-MB A0228243.D 1 10/25/21 JL n/a n/a VA2976
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-4, FA89760-7, FA89760-8, FA89760-9, FA89760-10, FA89760-11
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
39 of 52
FA8976055.1.2
Method Blank Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2976-MB A0228243.D 1 10/25/21 JL n/a n/a VA2976
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-4, FA89760-7, FA89760-8, FA89760-9, FA89760-10, FA89760-11
CAS No.Compound Result RL MDL Units Q
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
CAS No.Surrogate Recoveries Limits
1868-53-7 Dibromofluoromethane 107%70-130%
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
2037-26-5 Toluene-D8 101%70-130%
460-00-4 4-Bromofluorobenzene 102%70-130%
40 of 52
FA8976055.1.2
Method Blank Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2977-MB A0228275.D 1 10/26/21 JL n/a n/a VA2977
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-5, FA89760-6
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.13 ug/l
108-86-1 Bromobenzene ND 0.50 0.13 ug/l
74-97-5 Bromochloromethane ND 0.50 0.13 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l
75-25-2 Bromoform ND 0.50 0.13 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l
56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l
108-90-7 Chlorobenzene ND 0.50 0.13 ug/l
75-00-3 Chloroethane ND 0.50 0.20 ug/l
67-66-3 Chloroform ND 0.50 0.13 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l
124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l
95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l
541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l
106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l
107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l
78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l
100-41-4 Ethylbenzene ND 0.50 0.13 ug/l
87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
41 of 52
FA8976055.1.3
Method Blank Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2977-MB A0228275.D 1 10/26/21 JL n/a n/a VA2977
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-5, FA89760-6
CAS No.Compound Result RL MDL Units Q
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.20 ug/l
74-87-3 Methyl Chloride ND 0.50 0.20 ug/l
74-95-3 Methylene Bromide ND 0.50 0.13 ug/l
75-09-2 Methylene Chloride ND 2.0 1.0 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l
91-20-3 Naphthalene ND 0.50 0.13 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l
108-88-3 Toluene ND 0.50 0.13 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l
79-01-6 Trichloroethylene ND 0.50 0.13 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l
m,p-Xylene ND 1.0 0.13 ug/l
95-47-6 o-Xylene ND 0.50 0.13 ug/l
CAS No.Surrogate Recoveries Limits
1868-53-7 Dibromofluoromethane 106%70-130%
17060-07-0 1,2-Dichloroethane-D4 107%70-130%
2037-26-5 Toluene-D8 103%70-130%
460-00-4 4-Bromofluorobenzene 98%70-130%
42 of 52
FA8976055.1.3
Blank Spike Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2568-BS E109065.D 1 10/22/21 JL n/a n/a VE2568
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-1, FA89760-2, FA89760-3
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
71-43-2 Benzene 10 9.9 99 70-130
108-86-1 Bromobenzene 10 9.8 98 70-130
74-97-5 Bromochloromethane 10 7.9 79 70-130
75-27-4 Bromodichloromethane 10 9.1 91 70-130
75-25-2 Bromoform 10 9.4 94 70-130
104-51-8 n-Butylbenzene 10 9.5 95 70-130
135-98-8 sec-Butylbenzene 10 10.6 106 70-130
98-06-6 tert-Butylbenzene 10 10.0 100 70-130
56-23-5 Carbon Tetrachloride 10 10.2 102 70-130
108-90-7 Chlorobenzene 10 9.9 99 70-130
75-00-3 Chloroethane 10 12.5 125 60-140
67-66-3 Chloroform 10 9.3 93 70-130
95-49-8 o-Chlorotoluene 10 10 100 70-130
106-43-4 p-Chlorotoluene 10 10 100 70-130
124-48-1 Dibromochloromethane 10 9.5 95 70-130
96-12-8 1,2-Dibromo-3-chloropropane 10 8.3 83 70-130
106-93-4 1,2-Dibromoethane 10 9.8 98 70-130
75-71-8 Dichlorodifluoromethane 10 11.1 111 60-140
95-50-1 1,2-Dichlorobenzene 10 9.5 95 70-130
541-73-1 1,3-Dichlorobenzene 10 9.8 98 70-130
106-46-7 1,4-Dichlorobenzene 10 9.6 96 70-130
75-34-3 1,1-Dichloroethane 10 10.1 101 70-130
107-06-2 1,2-Dichloroethane 10 9.2 92 70-130
75-35-4 1,1-Dichloroethylene 10 10.8 108 70-130
156-59-2 cis-1,2-Dichloroethylene 10 9.6 96 70-130
156-60-5 trans-1,2-Dichloroethylene 10 9.7 97 70-130
78-87-5 1,2-Dichloropropane 10 9.7 97 70-130
142-28-9 1,3-Dichloropropane 10 9.2 92 70-130
594-20-7 2,2-Dichloropropane 10 10.5 105 70-130
563-58-6 1,1-Dichloropropene 10 9.9 99 70-130
10061-01-5 cis-1,3-Dichloropropene 10 9.7 97 70-130
10061-02-6 trans-1,3-Dichloropropene 10 10.2 102 70-130
108-20-3 Di-Isopropyl Ether 10 8.9 89 70-130
100-41-4 Ethylbenzene 10 9.8 98 70-130
87-68-3 Hexachlorobutadiene 10 9.7 97 70-130
98-82-8 Isopropylbenzene 10 9.7 97 70-130
* = Outside of Control Limits.
43 of 52
FA8976055.2.1
Blank Spike Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VE2568-BS E109065.D 1 10/22/21 JL n/a n/a VE2568
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-1, FA89760-2, FA89760-3
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
99-87-6 p-Isopropyltoluene 10 10.2 102 70-130
74-83-9 Methyl Bromide 10 11.6 116 60-140
74-87-3 Methyl Chloride 10 11.1 111 60-140
74-95-3 Methylene Bromide 10 9.0 90 70-130
75-09-2 Methylene Chloride 10 10.1 101 70-130
1634-04-4 Methyl Tert Butyl Ether 10 8.6 86 70-130
91-20-3 Naphthalene 10 9.1 91 70-130
103-65-1 n-Propylbenzene 10 10.1 101 70-130
100-42-5 Styrene 10 9.2 92 70-130
630-20-6 1,1,1,2-Tetrachloroethane 10 9.1 91 70-130
79-34-5 1,1,2,2-Tetrachloroethane 10 9.1 91 70-130
127-18-4 Tetrachloroethylene 10 10.4 104 70-130
108-88-3 Toluene 10 9.7 97 70-130
87-61-6 1,2,3-Trichlorobenzene 10 9.1 91 70-130
120-82-1 1,2,4-Trichlorobenzene 10 9.2 92 70-130
71-55-6 1,1,1-Trichloroethane 10 9.9 99 70-130
79-00-5 1,1,2-Trichloroethane 10 9.6 96 70-130
79-01-6 Trichloroethylene 10 9.8 98 70-130
75-69-4 Trichlorofluoromethane 10 13.2 132 60-140
96-18-4 1,2,3-Trichloropropane 10 9.2 92 70-130
95-63-6 1,2,4-Trimethylbenzene 10 9.5 95 70-130
108-67-8 1,3,5-Trimethylbenzene 10 9.6 96 70-130
75-01-4 Vinyl Chloride 10 12.1 121 60-140
m,p-Xylene 20 19.4 97 70-130
95-47-6 o-Xylene 10 9.6 96 70-130
CAS No.Surrogate Recoveries BSP Limits
1868-53-7 Dibromofluoromethane 97%70-130%
17060-07-0 1,2-Dichloroethane-D4 95%70-130%
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 102%70-130%
* = Outside of Control Limits.
44 of 52
FA8976055.2.1
Blank Spike Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2976-BS a A0228241.D 1 10/25/21 JL n/a n/a VA2976
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-4, FA89760-7, FA89760-8, FA89760-9, FA89760-10, FA89760-11
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
71-43-2 Benzene 10 11.7 117 70-130
108-86-1 Bromobenzene 10 10.9 109 70-130
74-97-5 Bromochloromethane 10 9.2 92 70-130
75-27-4 Bromodichloromethane 10 11.2 112 70-130
75-25-2 Bromoform 10 10.6 106 70-130
104-51-8 n-Butylbenzene 10 10.8 108 70-130
135-98-8 sec-Butylbenzene 10 12.2 122 70-130
98-06-6 tert-Butylbenzene 10 11.6 116 70-130
56-23-5 Carbon Tetrachloride 10 12.3 123 70-130
108-90-7 Chlorobenzene 10 11.3 113 70-130
75-00-3 Chloroethane 10 9.0 90 60-140
67-66-3 Chloroform 10 11.3 113 70-130
95-49-8 o-Chlorotoluene 10 11.5 115 70-130
106-43-4 p-Chlorotoluene 10 11.3 113 70-130
124-48-1 Dibromochloromethane 10 10.0 100 70-130
96-12-8 1,2-Dibromo-3-chloropropane 10 10.3 103 70-130
106-93-4 1,2-Dibromoethane 10 10.4 104 70-130
75-71-8 Dichlorodifluoromethane 10 6.5 65 60-140
95-50-1 1,2-Dichlorobenzene 10 11.2 112 70-130
541-73-1 1,3-Dichlorobenzene 10 11.7 117 70-130
106-46-7 1,4-Dichlorobenzene 10 11.1 111 70-130
75-34-3 1,1-Dichloroethane 10 12.2 122 70-130
107-06-2 1,2-Dichloroethane 10 11.0 110 70-130
75-35-4 1,1-Dichloroethylene 10 12.7 127 70-130
156-59-2 cis-1,2-Dichloroethylene 10 11.2 112 70-130
156-60-5 trans-1,2-Dichloroethylene 10 11.9 119 70-130
78-87-5 1,2-Dichloropropane 10 11.3 113 70-130
142-28-9 1,3-Dichloropropane 10 10.6 106 70-130
594-20-7 2,2-Dichloropropane 10 12.6 126 70-130
563-58-6 1,1-Dichloropropene 10 11.4 114 70-130
10061-01-5 cis-1,3-Dichloropropene 10 10.3 103 70-130
10061-02-6 trans-1,3-Dichloropropene 10 11.3 113 70-130
108-20-3 Di-Isopropyl Ether 10 9.8 98 70-130
100-41-4 Ethylbenzene 10 11.8 118 70-130
87-68-3 Hexachlorobutadiene 10 11.2 112 70-130
98-82-8 Isopropylbenzene 10 11.3 113 70-130
* = Outside of Control Limits.
45 of 52
FA8976055.2.2
Blank Spike Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2976-BS a A0228241.D 1 10/25/21 JL n/a n/a VA2976
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-4, FA89760-7, FA89760-8, FA89760-9, FA89760-10, FA89760-11
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
99-87-6 p-Isopropyltoluene 10 11.6 116 70-130
74-83-9 Methyl Bromide 10 8.2 82 60-140
74-87-3 Methyl Chloride 10 7.4 74 60-140
74-95-3 Methylene Bromide 10 10.3 103 70-130
75-09-2 Methylene Chloride 10 9.4 94 70-130
1634-04-4 Methyl Tert Butyl Ether 10 10.0 100 70-130
91-20-3 Naphthalene 10 9.0 90 70-130
103-65-1 n-Propylbenzene 10 11.7 117 70-130
100-42-5 Styrene 10 10.5 105 70-130
630-20-6 1,1,1,2-Tetrachloroethane 10 10.7 107 70-130
79-34-5 1,1,2,2-Tetrachloroethane 10 10.3 103 70-130
127-18-4 Tetrachloroethylene 10 11.8 118 70-130
108-88-3 Toluene 10 11.1 111 70-130
87-61-6 1,2,3-Trichlorobenzene 10 9.6 96 70-130
120-82-1 1,2,4-Trichlorobenzene 10 9.3 93 70-130
71-55-6 1,1,1-Trichloroethane 10 11.8 118 70-130
79-00-5 1,1,2-Trichloroethane 10 10.7 107 70-130
79-01-6 Trichloroethylene 10 11.6 116 70-130
75-69-4 Trichlorofluoromethane 10 8.9 89 60-140
96-18-4 1,2,3-Trichloropropane 10 10.2 102 70-130
95-63-6 1,2,4-Trimethylbenzene 10 11.0 110 70-130
108-67-8 1,3,5-Trimethylbenzene 10 11.1 111 70-130
75-01-4 Vinyl Chloride 10 7.8 78 60-140
m,p-Xylene 20 22.3 112 70-130
95-47-6 o-Xylene 10 10.8 108 70-130
CAS No.Surrogate Recoveries BSP Limits
1868-53-7 Dibromofluoromethane 99%70-130%
17060-07-0 1,2-Dichloroethane-D4 103%70-130%
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 101%70-130%
(a) No MS/MSD available for this run. Internal standard areas outside method criteria.
* = Outside of Control Limits.
46 of 52
FA8976055.2.2
Blank Spike Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2977-BS A0228273.D 1 10/26/21 JL n/a n/a VA2977
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-5, FA89760-6
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
71-43-2 Benzene 10 9.6 96 70-130
108-86-1 Bromobenzene 10 9.0 90 70-130
74-97-5 Bromochloromethane 10 7.6 76 70-130
75-27-4 Bromodichloromethane 10 8.8 88 70-130
75-25-2 Bromoform 10 8.8 88 70-130
104-51-8 n-Butylbenzene 10 8.8 88 70-130
135-98-8 sec-Butylbenzene 10 10.1 101 70-130
98-06-6 tert-Butylbenzene 10 9.7 97 70-130
56-23-5 Carbon Tetrachloride 10 10.1 101 70-130
108-90-7 Chlorobenzene 10 9.4 94 70-130
75-00-3 Chloroethane 10 13.7 137 60-140
67-66-3 Chloroform 10 9.2 92 70-130
95-49-8 o-Chlorotoluene 10 9.5 95 70-130
106-43-4 p-Chlorotoluene 10 9.3 93 70-130
124-48-1 Dibromochloromethane 10 8.4 84 70-130
96-12-8 1,2-Dibromo-3-chloropropane 10 8.6 86 70-130
106-93-4 1,2-Dibromoethane 10 8.7 87 70-130
75-71-8 Dichlorodifluoromethane 10 14.5 145*60-140
95-50-1 1,2-Dichlorobenzene 10 9.5 95 70-130
541-73-1 1,3-Dichlorobenzene 10 9.9 99 70-130
106-46-7 1,4-Dichlorobenzene 10 9.4 94 70-130
75-34-3 1,1-Dichloroethane 10 9.8 98 70-130
107-06-2 1,2-Dichloroethane 10 9.0 90 70-130
75-35-4 1,1-Dichloroethylene 10 10.2 102 70-130
156-59-2 cis-1,2-Dichloroethylene 10 9.4 94 70-130
156-60-5 trans-1,2-Dichloroethylene 10 9.7 97 70-130
78-87-5 1,2-Dichloropropane 10 9.2 92 70-130
142-28-9 1,3-Dichloropropane 10 8.7 87 70-130
594-20-7 2,2-Dichloropropane 10 10.3 103 70-130
563-58-6 1,1-Dichloropropene 10 9.4 94 70-130
10061-01-5 cis-1,3-Dichloropropene 10 8.4 84 70-130
10061-02-6 trans-1,3-Dichloropropene 10 9.2 92 70-130
108-20-3 Di-Isopropyl Ether 10 8.0 80 70-130
100-41-4 Ethylbenzene 10 9.8 98 70-130
87-68-3 Hexachlorobutadiene 10 9.6 96 70-130
98-82-8 Isopropylbenzene 10 9.5 95 70-130
* = Outside of Control Limits.
47 of 52
FA8976055.2.3
Blank Spike Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
VA2977-BS A0228273.D 1 10/26/21 JL n/a n/a VA2977
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-5, FA89760-6
Spike BSP BSP
CAS No.Compound ug/l ug/l %Limits
99-87-6 p-Isopropyltoluene 10 9.6 96 70-130
74-83-9 Methyl Bromide 10 12.1 121 60-140
74-87-3 Methyl Chloride 10 11.4 114 60-140
74-95-3 Methylene Bromide 10 8.3 83 70-130
75-09-2 Methylene Chloride 10 7.0 70 70-130
1634-04-4 Methyl Tert Butyl Ether 10 8.3 83 70-130
91-20-3 Naphthalene 10 7.6 76 70-130
103-65-1 n-Propylbenzene 10 9.6 96 70-130
100-42-5 Styrene 10 8.7 87 70-130
630-20-6 1,1,1,2-Tetrachloroethane 10 9.1 91 70-130
79-34-5 1,1,2,2-Tetrachloroethane 10 8.5 85 70-130
127-18-4 Tetrachloroethylene 10 9.9 99 70-130
108-88-3 Toluene 10 9.3 93 70-130
87-61-6 1,2,3-Trichlorobenzene 10 8.2 82 70-130
120-82-1 1,2,4-Trichlorobenzene 10 8.0 80 70-130
71-55-6 1,1,1-Trichloroethane 10 9.6 96 70-130
79-00-5 1,1,2-Trichloroethane 10 8.9 89 70-130
79-01-6 Trichloroethylene 10 9.7 97 70-130
75-69-4 Trichlorofluoromethane 10 12.3 123 60-140
96-18-4 1,2,3-Trichloropropane 10 8.5 85 70-130
95-63-6 1,2,4-Trimethylbenzene 10 9.0 90 70-130
108-67-8 1,3,5-Trimethylbenzene 10 9.1 91 70-130
75-01-4 Vinyl Chloride 10 11.6 116 60-140
m,p-Xylene 20 18.5 93 70-130
95-47-6 o-Xylene 10 9.1 91 70-130
CAS No.Surrogate Recoveries BSP Limits
1868-53-7 Dibromofluoromethane 97%70-130%
17060-07-0 1,2-Dichloroethane-D4 101%70-130%
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
* = Outside of Control Limits.
48 of 52
FA8976055.2.3
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA89760-3MS E109088.D 1000 10/22/21 JL n/a n/a VE2568
FA89760-3MSD E109089.D 1000 10/22/21 JL n/a n/a VE2568
FA89760-3 a E109087.D 1000 10/22/21 JL n/a n/a VE2568
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-1, FA89760-2, FA89760-3
FA89760-3 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
71-43-2 Benzene ND 10000 11800 118 10000 11300 113 4 70-130/20
108-86-1 Bromobenzene ND 10000 11300 113 10000 11000 110 3 70-130/20
74-97-5 Bromochloromethane ND 10000 9720 97 10000 9520 95 2 70-130/20
75-27-4 Bromodichloromethane ND 10000 11400 114 10000 10800 108 5 70-130/20
75-25-2 Bromoform ND 10000 10400 104 10000 10000 100 4 70-130/20
104-51-8 n-Butylbenzene ND 10000 11300 113 10000 10600 106 6 70-130/20
135-98-8 sec-Butylbenzene ND 10000 12800 128 10000 12000 120 6 70-130/20
98-06-6 tert-Butylbenzene ND 10000 12600 126 10000 11900 119 6 70-130/20
56-23-5 Carbon Tetrachloride ND 10000 12900 129 10000 12000 120 7 70-130/20
108-90-7 Chlorobenzene ND 10000 11500 115 10000 11500 115 0 70-130/20
75-00-3 Chloroethane ND 10000 11200 112 10000 12200 122 9 60-140/20
67-66-3 Chloroform ND 10000 11600 116 10000 11300 113 3 70-130/20
95-49-8 o-Chlorotoluene ND 10000 11900 119 10000 11400 114 4 70-130/20
106-43-4 p-Chlorotoluene ND 10000 11700 117 10000 11200 112 4 70-130/20
124-48-1 Dibromochloromethane ND 10000 11100 111 10000 10500 105 6 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 10000 10300 103 10000 8850 89 15 70-130/20
106-93-4 1,2-Dibromoethane ND 10000 11400 114 10000 11000 110 4 70-130/20
75-71-8 Dichlorodifluoromethane ND 10000 11300 113 10000 12100 121 7 60-140/20
95-50-1 1,2-Dichlorobenzene ND 10000 11600 116 10000 10800 108 7 70-130/20
541-73-1 1,3-Dichlorobenzene ND 10000 11500 115 10000 11000 110 4 70-130/20
106-46-7 1,4-Dichlorobenzene ND 10000 11400 114 10000 10900 109 4 70-130/20
75-34-3 1,1-Dichloroethane ND 10000 12700 127 10000 12100 121 5 70-130/20
107-06-2 1,2-Dichloroethane ND 10000 11700 117 10000 10900 109 7 70-130/20
75-35-4 1,1-Dichloroethylene ND 10000 13500 135*10000 12700 127 6 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 10000 12000 120 10000 11300 113 6 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 10000 12000 120 10000 11500 115 4 70-130/20
78-87-5 1,2-Dichloropropane ND 10000 11900 119 10000 11100 111 7 70-130/20
142-28-9 1,3-Dichloropropane ND 10000 11100 111 10000 10700 107 4 70-130/20
594-20-7 2,2-Dichloropropane ND 10000 11900 119 10000 10800 108 10 70-130/20
563-58-6 1,1-Dichloropropene ND 10000 12100 121 10000 11700 117 3 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 10000 10900 109 10000 10600 106 3 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 10000 11400 114 10000 10900 109 4 70-130/20
108-20-3 Di-Isopropyl Ether ND 10000 11000 110 10000 10600 106 4 70-130/20
100-41-4 Ethylbenzene 2470 10000 14200 117 10000 13800 113 3 70-130/20
87-68-3 Hexachlorobutadiene ND 10000 11600 116 10000 11100 111 4 70-130/20
98-82-8 Isopropylbenzene 235 J 10000 12000 118 10000 11600 114 3 70-130/20
* = Outside of Control Limits.
49 of 52
FA8976055.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA89760-3MS E109088.D 1000 10/22/21 JL n/a n/a VE2568
FA89760-3MSD E109089.D 1000 10/22/21 JL n/a n/a VE2568
FA89760-3 a E109087.D 1000 10/22/21 JL n/a n/a VE2568
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-1, FA89760-2, FA89760-3
FA89760-3 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
99-87-6 p-Isopropyltoluene ND 10000 12100 121 10000 11500 115 5 70-130/20
74-83-9 Methyl Bromide ND 10000 10300 103 10000 11400 114 10 60-140/20
74-87-3 Methyl Chloride ND 10000 11000 110 10000 11900 119 8 60-140/20
74-95-3 Methylene Bromide ND 10000 11300 113 10000 10700 107 5 70-130/20
75-09-2 Methylene Chloride 2810 B 10000 14500 117 10000 12800 100 12 70-130/20
1634-04-4 Methyl Tert Butyl Ether ND 10000 10800 108 10000 10300 103 5 70-130/20
91-20-3 Naphthalene 1150 10000 12600 115 10000 12200 111 3 70-130/20
103-65-1 n-Propylbenzene 592 10000 12700 121 10000 12100 115 5 70-130/20
100-42-5 Styrene ND 10000 11000 110 10000 10900 109 1 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 10000 11300 113 10000 10600 106 6 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 10000 10800 108 10000 10300 103 5 70-130/20
127-18-4 Tetrachloroethylene ND 10000 11900 119 10000 11800 118 1 70-130/20
108-88-3 Toluene 1590 10000 12800 112 10000 12600 110 2 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 10000 11100 111 10000 10900 109 2 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 10000 11200 112 10000 10800 108 4 70-130/20
71-55-6 1,1,1-Trichloroethane ND 10000 12400 124 10000 11800 118 5 70-130/20
79-00-5 1,1,2-Trichloroethane ND 10000 11300 113 10000 11000 110 3 70-130/20
79-01-6 Trichloroethylene ND 10000 11700 117 10000 11800 118 1 70-130/20
75-69-4 Trichlorofluoromethane ND 10000 12600 126 10000 13200 132 5 60-140/20
96-18-4 1,2,3-Trichloropropane ND 10000 11000 110 10000 10500 105 5 70-130/20
95-63-6 1,2,4-Trimethylbenzene 4260 10000 16100 118 10000 15300 110 5 70-130/20
108-67-8 1,3,5-Trimethylbenzene 1070 10000 12800 117 10000 12200 111 5 70-130/20
75-01-4 Vinyl Chloride ND 10000 10900 109 10000 11900 119 9 60-140/20
m,p-Xylene 9650 20000 33500 119 20000 32000 112 5 70-130/20
95-47-6 o-Xylene 3770 10000 15400 116 10000 15000 112 3 70-130/20
CAS No.Surrogate Recoveries MS MSD FA89760-3 Limits
1868-53-7 Dibromofluoromethane 101%101%102%70-130%
17060-07-0 1,2-Dichloroethane-D4 101%100%102%70-130%
2037-26-5 Toluene-D8 99%100%98%70-130%
460-00-4 4-Bromofluorobenzene 103%100%98%70-130%
(a) Associated internal standard response outside control limits. Confirmed by reanalysis.
* = Outside of Control Limits.
50 of 52
FA8976055.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA89828-5MS A0228298.D 100 10/26/21 JL n/a n/a VA2977
FA89828-5MSD A0228299.D 100 10/26/21 JL n/a n/a VA2977
FA89828-5 a A0228297.D 100 10/26/21 JL n/a n/a VA2977
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-5, FA89760-6
FA89828-5 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
71-43-2 Benzene ND 1000 1150 115 1000 1060 106 8 70-130/20
108-86-1 Bromobenzene ND 1000 1060 106 1000 989 99 7 70-130/20
74-97-5 Bromochloromethane ND 1000 897 90 1000 833 83 7 70-130/20
75-27-4 Bromodichloromethane ND 1000 1080 108 1000 983 98 9 70-130/20
75-25-2 Bromoform ND 1000 996 100 1000 920 92 8 70-130/20
104-51-8 n-Butylbenzene 39.3 J 1000 1100 106 1000 1020 98 8 70-130/20
135-98-8 sec-Butylbenzene 26.5 J 1000 1180 115 1000 1120 109 5 70-130/20
98-06-6 tert-Butylbenzene ND 1000 1150 115 1000 1080 108 6 70-130/20
56-23-5 Carbon Tetrachloride ND 1000 1200 120 1000 1100 110 9 70-130/20
108-90-7 Chlorobenzene ND 1000 1090 109 1000 1010 101 8 70-130/20
75-00-3 Chloroethane ND 1000 1540 154*1000 1430 143*7 60-140/20
67-66-3 Chloroform ND 1000 1110 111 1000 1020 102 8 70-130/20
95-49-8 o-Chlorotoluene ND 1000 1210 121 1000 1130 113 7 70-130/20
106-43-4 p-Chlorotoluene ND 1000 1090 109 1000 1000 100 9 70-130/20
124-48-1 Dibromochloromethane ND 1000 973 97 1000 906 91 7 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 1000 1080 108 1000 984 98 9 70-130/20
106-93-4 1,2-Dibromoethane ND 1000 1010 101 1000 924 92 9 70-130/20
75-71-8 Dichlorodifluoromethane ND 1000 1560 156*1000 1430 143*9 60-140/20
95-50-1 1,2-Dichlorobenzene ND 1000 1100 110 1000 1040 104 6 70-130/20
541-73-1 1,3-Dichlorobenzene ND 1000 1150 115 1000 1060 106 8 70-130/20
106-46-7 1,4-Dichlorobenzene ND 1000 1070 107 1000 995 100 7 70-130/20
75-34-3 1,1-Dichloroethane ND 1000 1170 117 1000 1090 109 7 70-130/20
107-06-2 1,2-Dichloroethane ND 1000 1060 106 1000 977 98 8 70-130/20
75-35-4 1,1-Dichloroethylene ND 1000 1220 122 1000 1130 113 8 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 1000 1100 110 1000 1020 102 8 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 1000 1150 115 1000 1070 107 7 70-130/20
78-87-5 1,2-Dichloropropane ND 1000 1120 112 1000 1020 102 9 70-130/20
142-28-9 1,3-Dichloropropane ND 1000 1000 100 1000 923 92 8 70-130/20
594-20-7 2,2-Dichloropropane ND 1000 1110 111 1000 1020 102 8 70-130/20
563-58-6 1,1-Dichloropropene ND 1000 1110 111 1000 1030 103 7 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 1000 961 96 1000 879 88 9 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 1000 1040 104 1000 957 96 8 70-130/20
108-20-3 Di-Isopropyl Ether ND 1000 946 95 1000 882 88 7 70-130/20
100-41-4 Ethylbenzene 1740 1000 2870 113 1000 2730 99 5 70-130/20
87-68-3 Hexachlorobutadiene ND 1000 1140 114 1000 1070 107 6 70-130/20
98-82-8 Isopropylbenzene 130 1000 1270 114 1000 1200 107 6 70-130/20
* = Outside of Control Limits.
51 of 52
FA8976055.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 2
Job Number:FA89760
Account:GRINCC GRI (Geological Resources Inc.)
Project:Westorer Service Station; 801 W Queen St, Edenton, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
FA89828-5MS A0228298.D 100 10/26/21 JL n/a n/a VA2977
FA89828-5MSD A0228299.D 100 10/26/21 JL n/a n/a VA2977
FA89828-5 a A0228297.D 100 10/26/21 JL n/a n/a VA2977
The QC reported here applies to the following samples:Method: SM 6200B
FA89760-5, FA89760-6
FA89828-5 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
99-87-6 p-Isopropyltoluene ND 1000 1120 112 1000 1040 104 7 70-130/20
74-83-9 Methyl Bromide ND 1000 1390 139 1000 1200 120 15 60-140/20
74-87-3 Methyl Chloride ND 1000 1200 120 1000 1180 118 2 60-140/20
74-95-3 Methylene Bromide ND 1000 983 98 1000 922 92 6 70-130/20
75-09-2 Methylene Chloride ND 1000 896 90 1000 807 81 10 70-130/20
1634-04-4 Methyl Tert Butyl Ether ND 1000 944 94 1000 887 89 6 70-130/20
91-20-3 Naphthalene 355 1000 1400 105 1000 1360 101 3 70-130/20
103-65-1 n-Propylbenzene 401 1000 1570 117 1000 1470 107 7 70-130/20
100-42-5 Styrene ND 1000 1020 102 1000 944 94 8 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 1000 1040 104 1000 972 97 7 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 1000 977 98 1000 906 91 8 70-130/20
127-18-4 Tetrachloroethylene ND 1000 1140 114 1000 1050 105 8 70-130/20
108-88-3 Toluene 102 1000 1190 109 1000 1100 100 8 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 1000 982 98 1000 914 91 7 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 1000 1050 105 1000 970 97 8 70-130/20
71-55-6 1,1,1-Trichloroethane ND 1000 1150 115 1000 1050 105 9 70-130/20
79-00-5 1,1,2-Trichloroethane ND 1000 1040 104 1000 961 96 8 70-130/20
79-01-6 Trichloroethylene ND 1000 1140 114 1000 1050 105 8 70-130/20
75-69-4 Trichlorofluoromethane ND 1000 1310 131 1000 1210 121 8 60-140/20
96-18-4 1,2,3-Trichloropropane ND 1000 982 98 1000 902 90 8 70-130/20
95-63-6 1,2,4-Trimethylbenzene 2670 1000 3580 91 1000 3500 83 2 70-130/20
108-67-8 1,3,5-Trimethylbenzene 715 1000 1800 109 1000 1710 100 5 70-130/20
75-01-4 Vinyl Chloride ND 1000 1260 126 1000 1190 119 6 60-140/20
m,p-Xylene 4640 2000 6360 86 2000 6130 75 4 70-130/20
95-47-6 o-Xylene 2140 1000 3070 93 1000 2960 82 4 70-130/20
CAS No.Surrogate Recoveries MS MSD FA89828-5 Limits
1868-53-7 Dibromofluoromethane 99%99%103%70-130%
17060-07-0 1,2-Dichloroethane-D4 103%103%108%70-130%
2037-26-5 Toluene-D8 99%100%102%70-130%
460-00-4 4-Bromofluorobenzene 101%101%99%70-130%
(a) Confirmation run beyond holdtime.
* = Outside of Control Limits.
52 of 52
FA8976055.3.2

APPENDIX C
Contaminant Mass Calculations

Area ID Well ID Area
(ft²)
Average Well
Depth
(ft.)
Average
Depth to
Water
(ft.)
Water Column
Height
(ft)
Volume
(ft³)
Volume
(L)
Effective
Porosity
Effective
Volume
(L)
MW-1
MW-2
MW-3
Area Date Well Benzene
(μ/L)
Toluene
(μ/L)
Ethylbenzene
(μ/L)
Xylenes
(μ/L)
MTBE
(μ/L)
Naphthalene
(μ/L)
Total
(μ/L)
DTW
(ft.)
Average Water
Column Height
(ft.)
Total Average Mass
(g)Percent Red.To Date Red.
MW-1 0.00 540 719 7,130 0.00 406 8795.00 3.60
MW-2 20.70 187 1,710 8,080 0.00 950 10947.70 3.74
MW-3 24.20 1,680 2,500 12,880 0.00 839 17923.20 3.91
Avg.14.97 802.33 1643.00 9363.33 0.00 731.67 12555.30 3.75
MW-1 0.00 1,110 1,500 17,280 0.00 1,040 20930.00 5.58
MW-2 0.00 516 1,480 12,460 0.00 1,070 15526.00 5.70
MW-3 0.00 1,590 2,470 13,420 0.00 1,150 18630.00 5.92
Avg.0.00 1072.00 1816.67 14386.67 0.00 1086.67 18362.00 5.73
Date
Average Water
Column Height
(ft.)
04/12/21 3.75
10/11/21 5.73
Notes:
• Area of the contaminant plume is calculated from Figure 7
• Height of the water column is calculated by subtracting the average depth to water from the average well depth of the referenced monitoring wells
• Volume of the contaminant plume is calculated by multiplying the area of the plume by the average height of the water column during each sampling event
• Effective porosity is assumed based on the sub-surface soil profile obtained from well construction records and soil boring logs
• Total mass was calculated by multiplying the total contaminant concentrations for the sampling event with effective volume
• Contaminant mass cannot be calculated in wells containing FP; therefore, the total contaminant mass is based on the known concentrations in the area for each sampling event.
• When areas couldn’t be sampled, the last known concentrations were used in the calculations.
3.75 9.25 1,300,44345,925 286,0970.22
4,803.36
2,557.03 ------9.40
7.42 -87.8%-87.8%
1 4,964.8 13
10/11/21
04/12/21
4803
Percent Reduction Compared
to Previous Event
---
-87.8%-88%
Area 1
APPENDIX C
PERCENTAGE REDUCTIONS
WESTOVER SERVICE STATION (INCIDENT NO. 13279)
Baseline Event
Total Contaminant Mass
(g)
2,557
Percent Reduction To Date
---

APPENDIX D
GSI Mann Kendall Toolkit for Plume Stability Analysis
Evaluation Date:Job ID:
Facility Name:Constituent:
Conducted By:Concentration Units:μg/L
Sampling Point ID:MW-1 MW-2 MW-3
Sampling Sampling
Event Date
1 19-Sep-96 5900 2500 6200
2 30-Aug-01 1500 1200 3000
3 16-Jul-02 1100 1300 2500
4 13-Feb-03 4300 3900 9600
5 12-Apr-21 540 187 1680
6 11-Oct-21 1110 516 1590
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Coefficient of Variation:0.90 0.86 0.78
Mann-Kendall Statistic (S):-7 -5 -9
Confidence Factor:86.4%76.5%93.2%
Concentration Trend:Stable Stable Prob. Decreasing
Notes:
1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples.
2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing;
≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable.
3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales,
Ground Water, 41(3):355-367, 2003.
DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without
limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such
party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in
this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein.
GSI Environmental Inc., www.gsi-net.com
TOLUENE CONCENTRATION (μg/L)
9-Nov-21
Westover Service Station Toluene
GSI MANN-KENDALL TOOLKIT
for Constituent Trend Analysis
William Regenthal
13279
1
10
100
1000
10000
01/00 09/13 05/27 01/41 10/54 06/68 02/82 10/95 07/09 03/23 11/36Concentration (μg/L)Sampling Date
MW-1
MW-2
MW-3