WS-3925_13011_CA_MRP_20210421

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
www.terraquestpc.com
MONITORING REPORT
QUALITY MART 28
2400 RANDLEMAN ROAD
GREENSBORO, GUILFORD COUNTY, NORTH CAROLINA
Latitude: 36.03922 N Longitude: -79.80082 W
Current Release Information:
Estimated Release Quantity: Unknown
Release Cause/Source: Commercial UST System
UST Capacities:
Current system (no leak identified): 2, 8,000-gallon and 1, 12,000-gallon gasoline
Former system with subject release incident: 2, 5,000-gallon, 1, 6,000-gallon, 1, 8,000-gallon gasoline
NCDWM-UST Facility ID: 00-0-0000010578
NCDWM-UST Incident No.: 13011
NCDWM-UST Risk Ranking: Intermediate 80
Responsible Party:
Quality Oil Company, LLC
Attn: Don McIver
PO Box 2736
Winston-Salem, NC 27102-2736
Property Owner:
Shivaan Inc
2400 Randleman Rd
Greensboro, NC 27406
Terraquest Project No. 02294
April 21, 2021
Received: 4/30/2021 (revised)

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 i 2400 Randleman Rd, Greensboro, NC
CERTIFICATION FOR THE SUBMITTAL
OF AN ENVIRONMENTAL / GEOLOGICAL ASSESSMENT

Attached is the Monitoring Report for:

Responsible Party: Quality Oil Company, LLC
Address: PO Box 2736
City: Winston-Salem State: NC Zip Code: 27102-2736

Site Name: Quality Mart 28
Address: 2400 Randleman Rd
City: Greensboro State: NC Zip Code: 27406

I, Michael J. Brown, a Licensed Geologist in the State of North Carolina for TERRAQUEST
ENVIRONMENTAL CONSULTANTS, P.C. do hereby certify that I am familiar with and have
reviewed all material including figures within this report and that to the best of my knowledge
the data, site assessment, figures, and other associated materials are correct and accurate. All
work was performed under my direct supervision. My seal and signature are affixed below.

Terraquest Environmental Consultants, P.C. is licensed to practice geology and engineering in
North Carolina. The geology certification number of the corporation is C-291. The engineering
certification number of the corporation is C-4634. Engineering is practiced out of the Cary, NC
office.

TERRAQUEST ENVIRONMENTAL CONSULTANTS, P.C.

Ryan D. Kerins Michael J. Brown, P.G.
Project Manager President

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 ii 2400 Randleman Rd, Greensboro, NC
TABLE OF CONTENTS
ENVIRONMENTAL ACRONYMS ....................................................................................................... iii
EXECUTIVE SUMMARY .................................................................................................................... iv
1.0 INTRODUCTION ................................................................................................................... 1
2.0 SITE HISTORY AND CHARACTERIZATION ............................................................................. 1
3.0 FREE PRODUCT INVESTIGATION ......................................................................................... 8
4.0 SOIL INVESTIGATION ........................................................................................................... 8
5.0 GROUNDWATER INVESTIGATION ..................................................................................... 12
5.1 Groundwater Flow Direction ........................................................................................ 12
5.2 Groundwater Quality .................................................................................................... 13
6.0 CONCLUSIONS AND RECOMMENDATIONS ....................................................................... 14
7.0 LIMITATIONS ..................................................................................................................... 14
REFERENCES .................................................................................................................................. 16

TABLES

1. Site History (UST System Information)
2. Summary of Soil Sampling Results
3. Water Use Within 1,000 Feet
4. Surrounding Property Owners
5. Monitoring Well Construction Information
6. Summary of Groundwater Sampling Results

FIGURES

1. Site Location Map
2. Site Vicinity Map
3. Site Layout Map
4. Potentiometric Surface Map (2/22/21)
5. Groundwater Analytical Results Map (2/22/21)

APPENDICES

A. Technical Methods / Standard Procedures
B. Historical Groundwater Data
C. Analytical Report
ENVIRONMENTAL ACRONYMS
Monitoring Report (2/22/21 event) Quality Oil Company, LLC
Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 iii 2400 Randleman Rd, Greensboro, NC
2L Standard Groundwater Standards Title 15A NCAC 2L
0.0202(g)
2B Standard Surface Water Standards Title 15A NCAC 2B
AFVR Aggressive Fluid-Vapor Recovery
AST Aboveground Storage Tank
BGL Below Ground Level
BTEX Benzene, toluene, ethylbenzene, xylenes
C&D Construction and Demolition
CAP Corrective Action Plan
CAPR Corrective Action Performance Report
CADR Corrective Action Design Report
CSA Comprehensive Site Assessment
DPE Dual-phase Extraction
EPA Environmental Protection Agency
ePATA Electronic Pre-Approval Task Authorization
EPH Extractable Petroleum Hydrocarbons
ESA Environmental Site Assessment
GCL Gross Contamination Level
LEL Lower Explosive Limit
LSA Limited Site Assessment
IPE di-Isopropyl Ether
ISCO In-situ Chemical Oxidation
MADEP Massachusetts Department of Environmental
Protection
MDL Method Detection Limit
MNA Monitored Natural Attenuation
MMPE Mobile Multi Phase Extraction
MSCC Maximum Soil Contaminant
Concentration
MSL Mean Sea Level
MSW Municipal Solid Waste
MTBE Methyl tertiary-Butyl Ether
NC North Carolina
NCAC NC Administrative Code
NCDENR NC Department of Environment and Natural
Resources
NCDEQ NC Department of Environmental
Quality
NCDOT NC Department of Transportation
NCDWM-SW NC Division of Waste Management’s Solid
Waste Section
NCDWM-UST NC Division of Waste Management’s UST
Section
NCDWQ NC Division of Water Quality
NFA No Further Action
NORR Notice of Regulatory Requirements
NORP Notice of Residual Petroleum
NOV Notice of Violation
NPDES National Pollutant Discharge
Elimination System
OVM Organic Vapor Meter
PID Photoionization Detector
PLC Programmable Logic Controller
POE Point of Entry (water treatment system)
POTW Publicly Owned Treatment Works
RBCA Risk Based Corrective Action
RDL Reporting Detection Limit
RP Responsible Party
SCFM Standard Cubic Feet per Minute
SVE Soil Vapor Extraction
STF Leaking UST State Trust Fund
STG Soil to Groundwater
TA Task Authorization
TCC Target Cleanup Concentrations
Terraquest Terraquest Environmental Consultants,
P.C.
TPH Total Petroleum Hydrocarbon
UST Underground Storage Tank
VADEQ Virginia Department of Environmental Quality
VOA Volatile Organic Analysis
VOC Volatile Organic Compound
VPH Volatile Petroleum Hydrocarbons
XP Explosion Proof

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 iv 2400 Randleman Rd, Greensboro, NC
EXECUTIVE SUMMARY

Terraquest Environmental Consultants, P.C. has completed a groundwater monitoring event at
the Quality Mart 28 facility located in Greensboro, Guilford County, North Carolina. The
analytical results confirm the continued presence of petroleum concentrations that exceed the
2B Surface Water Standards by a factor greater than ten. South Buffalo Creek remains at risk of
contamination. A reconnaissance of water supply wells within 1,000 feet of the release area did
not identify any and all occupied properties are reported to pay a water bill.

Terraquest recommends conducting an injection event to boost natural attenuation and move
this site toward closure. Additional monitoring is recommended, and additional wells should be
included in the next sampling event along with the stream.

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 1 2400 Randleman Rd, Greensboro, NC
1.0 INTRODUCTION

On behalf of the responsible party, Quality Oil Company, LLC, Terraquest Environmental
Consultants, P.C. (Terraquest) has prepared this Monitoring Report for the Quality Mart 28 facility
located in Greensboro, Guilford County, North Carolina that details the February 22, 2021
sampling event. This report has been prepared to comply with the North Carolina Division of
Waste Management’s UST Section’s (NCDWM-UST) December 8, 2020 correspondence and to
comply with regulations under Title 15A of the North Carolina Administrative Code (NCAC)
Subchapter 2L. Activities detailed herein were pre-approved on electronic pre-approval task
authorization (ePATA) 13011 -014.

The site’s location is shown in Figure 1. Figure 2 is a site vicinity map depicting properties within
1,500 feet of the site. A site layout map is included as Figure 3. Technical methods and standard
procedures utilized by Terraquest are detailed in Appendix A.

2.0 SITE HISTORY AND CHARACTERIZATION

UST Ownership:
Quality Oil Company, LLC was the owner of the subject UST system with release incident 13011.
The current tank system is registered to Shivaan, Inc.

UST Information:
According to the NCDWM-UST Petroleum Underground Storage Tank Database, USTs T2 through
T 4 were installed in May 1967, and UST T1 was installed in May 1970. All of the USTs were of
steel construction with associated steel piping and were previously used to store gasoline
petroleum product for retail sale. On June 28, 1994 Turner Environmental Consultants, P.C. (TEC)
supervised the permanent closure by excavation and removal of four USTs at the subject facility.
Pertinent information regarding the USTs is presented in Table 1. Current and historical tank
locations are shown on Figure 3.

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 2 2400 Randleman Rd, Greensboro, NC
UST Closure Procedures:
Representatives of TEC were present during the UST closure operation to observe site conditions
and collect confirmation soil samples as required by Title 15A NCAC 2N regulations. The
excavation contractor was Beauchamp, Inc. of Winston-Salem, NC. UST closure procedures
generally followed the guidelines of the American Petroleum Institute Recommended Practice
1604 and the requirements of NCAC Subchapter 2N regulations. All accessible residual products
were drained from the USTs prior to excavation. Petroleum hydrocarbon vapors were purged
from each UST using dry ice (solid CO2). Prior to removal, the lower explosive limit (LEL) of each
tank was checked to ensure compliance with state and local recommended levels for explosive
vapors. After removal, the USTs were transported off-site and disposed of in accordance with
NCDEM regulations by Safeway Tank Disposal, Inc. of Colfax, NC.

Upon removal, each UST was cleaned and inspected. Visual inspection of the USTs revealed
extensive corrosion pitting, but no holes were observed. The seams of all of the USTs were intact.

Release information:
Laboratory analyses of soil samples collected during UST closure activities and initial site
characterization activities indicate that the source of the subsurface petroleum release is the
former UST system. The estimated quantity of petroleum release is not known.

Two sets of confirmation samples were collected from below the USTs to determine the vertical
change in TPH concentrations below the USTs. The first set was collected at a depth of 2' below
the 2 UST bottoms (13' below ground surface level- BGL), and the second set was collected at a
depth of 5' below the UST bottoms (16' BGL). The set of 16' BGL samples collected from below
T1 and T2 were collected as exploratory test pits to determine if remedial excavation would be
necessary below those UST locations. Analytical results from the two sets were then used to
determine the extent of soil excavation for remedial purposes. Samples were also collected from
the base of each UST fill pipe, from 3-4.5' beneath each dispenser location, and from below the
product lines as required by regulations. Sample locations are shown on the following page:

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 3 2400 Randleman Rd, Greensboro, NC

The above figure depicts the soil sampling locations with analytical results for the samples
collected at 2' below the USTs and from below the dispensers and product lines prior to
excavation.

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 4 2400 Randleman Rd, Greensboro, NC

The above figure depicts the soil sampling locations with analytical results for the samples
collected at 5' below the USTs and from below the dispensers and product lines after remedial
excavation.

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 5 2400 Randleman Rd, Greensboro, NC
Laboratory analyses of the confirmation samples collected from 2' beneath the USTs detected
Total Petroleum Hydrocarbons (TPH) as Gasoline Range Organics (GRO) concentrations ranging
from 4.0 ppm (CS-3) to 2,060 ppm (CS-6). Analyses of the confirmation samples collected from
5' beneath the USTs detected TPH concentrations ranging from below detection limit (BDL) (CS-
3, CS-4) to 496 ppm (CS-8). Analysis of the soil samples collected from below dispenser island
locations P1 B (3') and P2C (4.5') detected respective TPH concentrations of 14.4 ppm and 25.5
ppm. Analysis of the soil samples collected from the base of the UST fill pipes detected TPH
concentrations ranging from 98.7 ppm (T4) to 784 ppm (T1). Table 2 summarizes field and
laboratory testing results for the soil confirmation samples.

Other Potential Nearby Release Points:
Due to the distance to other potential release points, none are thought to be contributing to the
subject release incident. However, for reference, it is noted that inspection of the UST Database
indicates that a 1,000-gallon steel UST for the storage of new/used oil was previously located on
the K-Mart property (2401 Randleman Road) opposite the site across Randleman Road. The UST
was installed on April 15, 1967 and removed on December 31, 1988.

Site Characterization:
The Quality Mart No. 28 facility is located in a primarily commercial area of Greensboro, North
Carolina. A residential apartment complex is located north of and opposite from the site across
Meadowview Road.

Sensitive Contaminant Receptor Information:
Reconnaissance efforts, conducted in the 1990’s, were updated as part of recent February 2021
efforts. As with prior efforts, potable water wells were not identified within a 1,500' radius of
the site. Potable water is supplied to the site by the City of Greensboro. Discussions and
correspondences with the Greensboro Utility Department were conducted to determine if all
properties within 1,000 feet of the source area had an active water account. As shown on Table

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 6 2400 Randleman Rd, Greensboro, NC
3, all occupied residences are paying a water bill. Terraquest also presents Table 4 that lists all
contiguous property owners to the site.

As part of the reconnaissance effort, Terraquest also searched for any surface water bodies
within a 500-foot radius of the site. South Buffalo Creek was identified approximately 200 feet
down gradient of the plume. The surface water body is classified as a Water Supply V surface
water, Nutrient Sensitive Water (NSW). The NCDEQ details that classification on their website as
“Waters protected as water supplies which are generally upstream and draining to Class WS-IV
waters or waters used by industry to supply their employees with drinking water or as waters
formerly used as water supply. These waters are also protected for Class C uses.”
(https://deq.nc.gov/about/divisions/water-resources/planning/classification-
standards/classifications#DWRPrimaryClassification)

The Creek is shown here:

From: https://ncdenr.maps.arcgis.com/apps/webappviewer/index.html?id=80b5a3634eda417880aa6d2abddfb6f2
SITE

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 7 2400 Randleman Rd, Greensboro, NC
An aerial Google view of South Buffalo Creek is provided here:

From: https://www.google.com/maps/place/2400+Randleman+Rd,+Greensboro,+NC+27406/@36.0383188,-
79.8007584,226m/data=!3m1!1e3!4m5!3m4!1s0x885319a6a7113789:0xddafe675e1bb96dc!8m2!3d36.0392567!4d-
79.8007812

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 8 2400 Randleman Rd, Greensboro, NC
Risk Ranking:
Based upon the presence of South Buffalo Creek and prior Gross Contamination Level violations
and ten times the 2B Standards exceedances, this site is ranked an Intermediate Risk. The
NCDWM-UST has assigned this release an Intermediate 80R ranking.

Site Geology and Hydrogeology:
On a regional scale, the site lies in the Piedmont physiographic province that is characterized by
land with moderate relief and some areas of low relief hills and valleys. Groundwater in the
region is directed towards South Buffalo Creek that is in the Cape Fear River Basin.

The site lies in the Carolina Slate Belt of the Piedmont physiographic province of North Carolina.
According to the Geologic Map of North Carolina (Brown, et. al, 1985), the site is underlain by
metamorphosed granitic rock. The encountered regolith lithology at the site consists of a
greenish to orange-brown silty-sandy clay unit overlying an intrusive igneous saprolite unit with
a felsic to dioritic composition.

Previous Assessments and Reporting:
A UST Closure, Site Check, and Initial Abatement Report, an Initial Site Characterization Report,
and a Groundwater Monitoring Report have previously been provided to the NCDWM-UST.

3.0 FREE PRODUCT INVESTIGATION

Free product has not been countered as part of this release incident to date.

4.0 SOIL INVESTIGATION

Soil quality associated with this release incident has been investigated as part of tank closure and
thereafter as part of Initial Site Characterization activities. Soil sample results are summarized
on Table 2.

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 9 2400 Randleman Rd, Greensboro, NC
As previously noted, soil samples collected as part of the UST closure indicated the presence of
contamination in excess of the TPH Action Limits (the GRO 10 mg/kg Action Limits of that time).
Following excavation of contaminated soil, further soil sampling showed TPH Action Limit
violations remaining. As shown in Table 2, multiple samples had concentrations that exceed the
current 50 mg/kg GRO TPH Action Limit.

As part of Initial Site Characterization activities in September 1994, additional borings were
advanced, and samples collected near a former dispenser pad. These new borings were
advanced as samples, SW1-B, SW2-B, and SW3-B from the closure event had indicated
contamination on the southern edge of this concrete pad. A total of six soil borings (B1-B6) were
installed to delineate the horizontal and vertical extent of vadose zone petroleum hydrocarbon
presence near the vicinity of the concrete pad. The soil borings were installed using a hollow-
stem auger drilling method down to the groundwater surface (18'-20' BGL). Grab samples were
collected at 5' intervals using split-spoon samplers to document soil conditions. Soil samples
were also collected during the installation of monitoring wells MW1, MW2, and MW3 that were
installed that time. Each of these soil samples was sent off for laboratory analysis per TPH GRO.
As shown on Table 2, none of the monitoring well soil samples had reportable concentrations of
TPH, however, soil samples B1 8-10, B1 14-15, B3 3-5, and B3 8-9.5 all had current TPH Action
Limit GRO violations. The locations of these soil samples are shown on the following figure:

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 10 2400 Randleman Rd, Greensboro, NC
Soil samples collected post UST closure in July 1994 as investigation of the former (concrete)
dispenser pad area due to the reported concentrations in SW1-B, SW2-B, and SW3-B located on
the north sidewall near T3 and T4:

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 11 2400 Randleman Rd, Greensboro, NC
Quality Oil performed additional excavation activities on September 14-15, 1994. Soil samples
were collected at the limits of excavation to document TPH concentrations in soil.

These samples were identified as being from either:
Area 1 (A1) – Near the former dispenser pad and T3/T4 UST basin,
or Area 2 (A2) – Near the dispenser island closest to the store.
The sample locations are shown here:

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 12 2400 Randleman Rd, Greensboro, NC
As shown in Table 2, the analytical results from the A1 and A2 samples indicate the continued
presence of GRO TPH Action Limit violations in both areas.

A risk-based soil analysis has not been performed. The presence of TPH GRO results at
concentrations exceeding 1,000 mg/kg indicates that soil-to-groundwater (STG) and Residential
Maximum Soil Contaminant Concentration (MSCC) violations may exist. Further soil testing is
required.

5.0 GROUNDWATER INVESTIGATION

As part of the Initial Site Characterization in July 1994, three groundwater monitoring wells,
MW1, MW2, and MW3, were installed to investigate groundwater quality. Additional
groundwater monitoring wells have been installed since that time. The additional wells included
those installed for an offsite dry cleaning release incident, “Dry Clean America” at 403 West
Meadowview Rd, DSCA ID 41-0018.

5.1 Groundwater Flow Direction

Prior to sampling on February 22, 2021, Terraquest first collected depth-to-water measurements
from wells approved by the NCDWM-UST. Those measurements were used with previously
established casing elevations to normalize the data and construct the potentiometric surface
map provided as Figure 4. The measurements are provided on Table 5. As shown on Figure 4,
the direction of groundwater flow is toward the southwest toward South Buffalo Creek.
Historical groundwater elevation data is provided in Appendix B. As shown in the historical data,
the water table has risen approximately 1.6 feet since last measured in 1996.

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 13 2400 Randleman Rd, Greensboro, NC
5.2 Groundwater Quality

On February 22, 2021, Terraquest personnel collected groundwater samples from monitoring
wells MW1, MW2, MW3, MW4, MW6, and MW10 as directed by the NCDWM-UST. Note that
monitoring well MW8 could not be found and was not sampled. The wells were sampled
following purging as outlined in Appendix A. The collected groundwater samples were placed in
laboratory-prepared sample containers, labeled, packed in ice, and shipped to a North Carolina-
certified laboratory for analysis prior to the expiration of the analytical method’s hold time. The
groundwater samples were all analyzed by method 6200B targeting VOCs.

The analytical results revealed the presence of violations in excess of ten times the 2B Surface
Water Standards at the source (MW1), downgradient (MW3), and further downgradient (MW10)
heading toward the surface water body. The NCDWM-UST denied sampling of other wells in
downgradient and lateral directions. The full extent of the ten times the 2B Standard plume is
unknown. Overall, concentrations have decreased since the last sampling event conducted
twenty-five years ago. However, the extent of migration is unknown and the core concentrations
remain in excess of 225 times the allowable limit.

Vertically, MTBE was reported at a concentration nine times the 2L Standard in the Type III
monitoring well MW4. That concentration is nearly ten times the 2B Standard.

Groundwater analytical results are summarized on Table 6 and on Figure 5. The full analytical
report is provided in Appendix C. The results are summarized here:

Free product: none gauged,
GCL violations: none reported,
>10 x 2B Standards: MW1, MW3, MW10,
>2L Standards: MW2, MW4, MW6.

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 14 2400 Randleman Rd, Greensboro, NC
Note that the analytical results also reported concentrations of tetrachloroethene,
trichloroethene, vinyl chloride, and cis-1,2-dechloroethene, compounds typical of dry cleaning
solvents. These compounds originate from the dry cleaning release incident “Dry Clean America”
at 403 West Meadowview Rd, DSCA ID 41-0018.

6.0 CONCLUSIONS AND RECOMMENDATIONS

Terraquest has sampled groundwater monitoring wells associated with the Quality Mart 28
release incident. The analytical results confirm the continued presence of petroleum
concentrations that exceed the 2B Surface Water Standards by a factor greater than ten. South
Buffalo Creek remains at risk of contamination. A reconnaissance of water supply wells within
1,000 feet of the release area did not identify any and all occupied properties are reported to pay
a water bill.

Terraquest recommends conducting an injection event to boost natural attenuation and move
this site toward closure. Additional monitoring is recommended, and additional wells should be
included in the next sampling event along with the stream.

7.0 LIMITATIONS

This report is limited to the investigation of petroleum hydrocarbons and does not imply that
other unforeseen adverse impacts to the environment are not present at the site. In addition,
subsurface heterogeneities not identified during the current study may influence the migration
of groundwater or contaminants in unpredicted ways. The limited amount of sampling and
testing conducted during this study cannot practically reveal all subsurface heterogeneities.
Furthermore, subsurface conditions, particularly groundwater flow, elevations, and water quality
may vary through time. The opinions and conclusions arrived at in this report are in accordance
with North Carolina Department of Environmental Quality’s regulations and guidelines and

Monitoring Report (2/22/21 event) Quality Oil Company, LLC Prepared by: Terraquest Environmental Consultants, P.C. (#13011) Quality Mart 28
Report Prepared: April 21, 2021 15 2400 Randleman Rd, Greensboro, NC
industry-accepted geologic and hydrogeologic practices at this time and location. No warranty is
implied or intended.

TABLES

Table 1
Date: 4/7/21 Facility ID No: 00-0-0000010578
Capacity
UST Product (Gallons)Tank Constr Name Release Discovered
94025 Gasoline, Gas Mix 8,000 Single Wall FRP 21-Sep-94 still active no
94024 Gasoline, Gas Mix 8,000 Single Wall FRP 21-Sep-94 still active no
94023 Gasoline, Gas Mix 12,000 Single Wall FRP 21-Sep-94 still active no
82-015 Oil, New/Used/Mix 550 Single Wall Steel 06-May-67 01-Dec-88 no
82-004 Gasoline, Gas Mix 5,000 Single Wall Steel 06-May-67 28-Jun-94 yes
82-003 Gasoline, Gas Mix 5,000 Single Wall Steel 06-May-67 28-Jun-94 yes
82-002 Gasoline, Gas Mix 6,000 Single Wall Steel 05-May-70 28-Jun-94 yes
82-001 Gasoline, Gas Mix 8,000 Single Wall Steel 06-May-67 28-Jun-94 yes
Notes:
1. Information obtained from the North Carolina UST Database Records and field observations.
SITE HISTORY (UST SYSTEM INFORMATION)
Incident Name: Quality Mart 28 Incident No. 13011
Date Installed Date Closed
First Generation USTs (NCDWM-UST Incident No. 13011)
Current tank system:
Table 2
Date: 4/13/21 Facility ID: 00-0-0000010578
5030/GRO5030/GRODate Collected Sample Depth (feet)Date Collected Sample Depth (feet)
CS-1 (2')6/28/94 13 19.1 SW-1B 7/8/94 15-16 3,980
CS-2 (2')6/28/94 13 6.9 SW-2A 7/8/94 15-16 18.9
CS-3 (2')6/28/94 13 4 SW-2B 7/8/94 15-16 152
CS-4 (2')6/28/94 13 83.4 SW-3A 7/8/94 15-16 23.8
CS-5 (2')6/28/94 13 2.8 SW-3B 7/11/94 15-16 22
CS-6 (2')6/28/94 13 2,060 SW-4A 7/8/94 15-16 21.8
CS-7 (2')6/28/94 13 544 SW-4B 7/11/94 15-16 <
CS-8 (2')6/28/94 13 1,869 SW-5A 7/8/94 15-16 0.54
CS-9 (2')6/28/94 13 272 SW-5B 7/8/94 15-16 <
T1 Fill Pipe 6/28/94 3 784 SW-6 7/8/94 15-16 0.55
T2 Fill Pipe 6/27/94 3 274 MW-1 7/26/94 3-5 <
T3 Fill Pipe 6/27/94 3 285 MW-2 7/26/94 8-10 <
T4 Fill Pipe 6/27/94 3 98.7 MW-3 7/26/94 13-15 <
CS-1 (5')6/28/94 5 2.9 B1 7/26/94 8-10 149
CS-2 (5')6/28/94 5 2.7 B1 7/26/94 14-15 191
CS-3 (5')6/28/94 5 <B2 7/26/94 3-5 24.4
CS-4 (5')6/28/94 5 <B2 7/26/94 8-10 <
CS-5 (5')6/28/94 5 14.1 B-3 7/26/94 3-5 119
CS-6 (5')6/28/94 5 13.2 B-3 7/26/94 8-9.5 123
CS-7 (5')6/28/94 5 384 B-4 7/26/94 13-14 <
CS-8 (5')6/28/94 5 496 B-5 7/26/94 8-10 <
CS-9 (5')6/28/94 5 86.5 B-6 7/26/94 14-15 0.38
PL-1 7/11/94 3 <A1-8 9/14/94 15 3.4
PL-2 (2')7/11/94 2 31.8 A1-11 9/14/94 10 <
PL-2 (5')7/11/94 5 492 A1-12 9/14/94 8 4.2
PL-3 (2')7/11/94 5 8.81 A1-13 9/14/94 8 14.2
PL-3 (5')7/11/94 5 0.34 A1-14 9/14/94 5 3
PL-4 7/11/94 2 1.28 A1-17 9/14/94 8 588
P1A (3')7/11/94 3 <A2-1 9/14/94 9 384
P1B (3')7/11/94 3 14.4 A2-2 9/14/94 9 1,095
P1B (5')7/11/94 5 2,880 A2-3 9/14/94 9 <
P1C (4')7/11/94 4 5.6 A2-6 9/15/94 12 <
P2A (4.5')7/11/94 4.5 7.8 A2-7 9/15/94 9 <
P2B (4.5')7/11/94 4.5 5.9 A2-10 9/15/94 9 <
P2C (4.5')7/11/94 4.5 25.5 A2-11 9/15/94 9 <
P2C (5')7/11/94 5 0.2 A2-12 9/15/94 9 <
SW-1A 7/8/94 15 6.14 10
10
Notes:
1. All results in mg/kg.
2. < - denotes less than sample detection limit.
3. Bold denotes a compound detection.
4. Shading denotes a TPH Action Level violation of the TPH Action Limit applicable at the time of sampling.
TPH Action Level - AT THE TIME!!
Incident Name: Quality Mart #28 Incident No.: 13011
SUMMARY OF SOIL SAMPLING RESULTS
TPH low fractionTPH Action Level - AT THE TIME!!
Analytical Method
Sample ID
Contaminant of ConcernContaminant of Concern
Analytical Method
Sample ID TPH low fraction
Table 3
Date: 4/13/21 Facility ID: 00-0-0000010578
Parcel Number Owner Address Active Municipal Water Acct
29494 LY, PHONG THANH 510 W MEADOWVIEW RD YES
29493 LY, BOT NGOC 512 W MEADOWVIEW RD YES
29492 CUELLAR, GUILLERMINA;JACINTO, J JESUS TORRE 514 W MEADOWVIEW RD YES
29491 STONE BUSINESS VENTURES LLC 516 W MEADOWVIEW RD YES
29490 JOHNSON, FERBY C 518 W MEADOWVIEW RD YES
29489 THREADGILL, WILLIAM L 2603 ATLANTA ST YES
29722 CAMPBELL, JAMES E;CAMPBELL, REBECCA C 2604 ATLANTA ST YES
29723 POTTS, KATHY E 602 W MEADOWVIEW RD YES
29721 EMANUEL, RONALD LEE 2602 ATLANTA ST YES
29488 POLK, CECIL G;POLK, TAMIKA R 2429 NEW ORLEANS ST YES
29487 AKINGBADE, MARGARET I 2427 NEW ORLEANS ST YES
29486 CONREX ML PORTFOLIO 2019-01 OPERATING COMPANY LLC 2425 NEW ORLEANS ST YES
29495 ROGERS, BRUCE WAYNE 2423 NEW ORLEANS ST NO (Vacant House)
29496 MCKESSON, BRADFORD W 2421 NEW ORLEANS ST YES
29497 MUNOZ, REYNOLDO;VAZQUEZ, YARMILA 2419 NEW ORLEANS ST YES
29498 KATHERINE GOBLE MOORE;MOORE, KATHERINE G TR 2417 NEW ORLEANS ST YES
29499 JONES, TANYA 2415 NEW ORLEANS ST YES
29500 WILLIAMS, CARLYLE B 2413 NEW ORLEANS ST YES
29501 BIBIANO, LUCIO CHAVEZ 2411 NEW ORLEANS ST YES
29502 MARSH, ERSIE Y 2409 NEW ORLEANS ST YES
29503 SIMS, WILLIAM V;SIMS, LINDA W 2407 NEW ORLEANS ST YES
29485 RAMIREZ, DIEGO 2405 NEW ORLEANS ST YES
29484 BROOKS, PHYLLIS S 2403 NEW ORLEANS ST YES
29483 BREWER, JACQUELINE 2401 NEW ORLEANS ST NO (Vacant House)
29469 CAMPBELL, KEITH D 2325 NEW ORLEANS ST YES
29470 GORHAM, GARLAND C;GORHAM, PHYLLIS M 2323 NEW ORLEANS ST YES
29471 CAMPBELL, SARA PARSONS;CAMPBELL, STEVEN LYNN 2321 NEW ORLEANS ST YES
29472 CHRISP, RHONDA D 2319 NEW ORLEANS ST YES
29473 ALBERSON, CHARLES BRYAN 2317 NEW ORLEANS ST YES
29540 NORTH CAROLINA INVESTMENT SERVICES LLC 2312 NEW ORLEANS ST YES
29541 CARTER, WENDALL CLARK JR;CARTER, JEAN B 2314 NEW ORLEANS ST YES
29542 LEE LUONG PROPERTIES LLC 2316 NEW ORLEANS ST YES
29543 PUMPHREY, DONALD L;PUMPHREY, PATRICIA H 2318 NEW ORLEANS ST YES
29544 MULLINS, DEBBIE;MULLINS, SHANICE 2320 NEW ORLEANS ST YES
29545 LUNA., SERGIO 2322 NEW ORLEANS ST YES
29546 SURGEON, SHIRLEY J 2324 NEW ORLEANS ST YES
29548 SIMMS, MARIAN B;MITCHELL, DONNA B;SIMMS, ANTHONY BRADLEY;BRADLEY, ULYSSES S 601 KIRKMAN ST YES
29574 HILLMAN, AMANDA 603 KIRKMAN ST YES
29549 JUAREZ, JAVIER GONZALEZ;GARCIA, MARIA GONZALEZ 2404 NEW ORLEANS ST YES
29550 WALKER, KENNETH E;WALKER, NATALIE D 2406 NEW ORLEANS ST YES
29551 MCCRAE, GLENDALE 2408 NEW ORLEANS ST YES
29552 DEJOURNETTE, WANDA 2410 NEW ORLEANS ST YES
29553 CRAWFORD, WALTER;CRAWFORD, R M;CRAWFORD, HAZEL CRAWFORD;CRAWFORD, NAPOLEON;JEFFERSON, V C ETAL 2412 NEW ORLEANS ST YES
29554 SMITH, FRELON LEROY;SMITH, ANNETTE G 2414 NEW ORLEANS ST YES
29555 ROWLAND, TAMISHA 2416 NEW ORLEANS ST YES
29556 MCLENDON, JOANN L;LILLY, JAMES CHRISTOPHER 2418 NEW ORLEANS ST YES
29557 CITI GROUP INVESTMENTS LLC 2420 NEW ORLEANS ST YES
29558 SHEPHERD, BELINDA F 2422 NEW ORLEANS ST YES
29559 GARNER, KRISTOPHER D 2424 NEW ORLEANS ST YES
29560 COPPADGE, CARRIE BULLARD;COPPADGE, JOHN LACY SR 2426 NEW ORLEANS ST YES
29720 GUNTER, CATHERINE LOWE 2600 ATLANTA ST YES
29719 PEARCE, JOHN J;PEARCE, JOHNSIE D 2512 ATLANTA ST YES
29718 WILSON, LORENZA;WILSON, KATHLEEN O 2510 ATLANTA ST YES
29717 SIOMY J & ANITA W ROUTH FAMILY TRUST;ROUTH, SIOMY J TR;ROUTH, ANITA W TR 2508 ATLANTA ST YES
29561 EDWARDS, BARBARA C;MITCHELL, MICHAEL LEE 725 MOBILE ST YES
29562 BROWN, MARY E 723 MOBILE ST YES
29563 TRENT, EVELYN G 721 MOBILE ST YES
29564 DUBOSE, ROBERT LEE;DUBOSE, MARVETA M 719 MOBILE ST YES
29565 FEWELL, DANA DIONNE;FEWELL, TAMERIA ANNETTE 717 MOBILE ST YES
29566 BROWNING, DOROTHY M 715 MOBILE ST YES
29567 ANDERSON, SHARON 713 MOBILE ST YES
29568 GOODWIN, CARL RICKEY 711 MOBILE ST YES
29569 AUSTIN, JOHN R;AUSTIN, MARTHA P 709 MOBILE ST YES
29570 STONE-ELMORE, PENNY 707 MOBILE ST YES
29571 SIMPSON, JAMES W JR 705 MOBILE ST YES
29572 EDWARDS, WILLIE A;EDWARDS, VELDA E 703 MOBILE ST YES
29573 MCINTOSH, LAKEITHA;MCINTOSH, MARCUS A 701 MOBILE ST YES
29524 NGUYEN, BONG THI 625 MOBILE ST YES
29525 PURCELL, VANDER D 623 MOBILE ST NO (Vacant House)
29526 ISIAH, WILLIE J;ISIAH, MYRNA L 621 MOBILE ST YES
29527 RANDALLWOOD PROPERTIES INC 619 MOBILE ST YES
29415 MITCHELL, ELIZABETH N 626 MOBILE ST NO (Vacant House)
29621 AUSTIN, EDITH OGLESBY 700 MOBILE ST YES
29622 LEYVA, YESENIA BERNAL;PEREZ-MACARENA, MAXIMINO 702 MOBILE ST YES
29623 FAISON, EVELYN J ESTATE 704 MOBILE ST NO (Vacant Lot)
29624 STEWART, WILLIAM A;STEWART, PATRICIA T 706 MOBILE ST YES
29625 FEARS, VELMA L HEIRS 708 MOBILE ST YES
29626 CHEEK, KATRINA L 710 MOBILE ST YES
29627 WADDELL, WILLIAM O 712 MOBILE ST YES
29628 TAYLOR, MATTHEW;TAYLOR, GLORIA B 714 MOBILE ST YES
29629 MANESS, GARY W;MANESS, NANCY P 716 MOBILE ST YES
29630 WEAVER, ROBERT C;WEAVER, LOUISA D 718 MOBILE ST YES
29631 OBIE, CALVIN THOMAS HEIRS 720 MOBILE ST YES
29632 MAO, KIYOEUN;MAO, PAUL MOM;MAO, SOUVADY MAO 2507 ATLANTA ST YES
29633 LEVINSON, DAVID L 2505 ATLANTA ST YES
29634 EARLE, FARLICHER P 2503 ATLANTA ST YES
29635 LEAVELLE, SOPHRONIA 2501 ATLANTA ST YES
29636 SCALES, RUFUS;SCALES, MARY 502 MEMPHIS ST YES
29637 SCOTT, DE WANNA;SCOTT, ROBERT L;SCOTT, SONYA D 504 MEMPHIS ST YES
29638 PEARCE, WILLIE R 506 MEMPHIS ST YES
29639 LINDSAY, SUSAN M 508 MEMPHIS ST YES
Note: Information obtained from Guilford County GIS and City of Greensboro Water Resources.
Incident Name: Quality Mart #28 Incident No.: 13011
WATER USE WITHIN 1,000 FEET
Table 4
Date: 4/14/21 Facility ID: 00-0-0000010578
Owner Name Physical Mailing
400 W MEADOWVIEW RD 260 N J ST
GREENSBORO, NC 27406 TULARE, CA 93274
409 427 W MEADOWVIEW RD
GREENSBORO, NC 27406
2349 RANDLEMAN RD 106 WOODWINDS INDUSTRIAL CT
GREENSBORO, NC 27406 CARY, NC 27511
2403 RANDLEMAN RD P O BOX 1159
GREENSBORO, NC 27406 DEERFIELD, IL 60015
Note: Information obtained from field observations and Guilford County GIS.
29102 PRECISION FRANCHISING INC
29318 SCOTT DRUG CO
Incident Name: Quality Mart #28 Incident No.: 13011
SURROUNDING PROPERTY OWNERS
Tax Parcel Number/ Map ID Address
29428 PRAIA INVESTMENTS LLC
29735 KOURY ENTERPRISES COMPANY LLC 2275 VANSTORY ST STE 200 GREENSBORO, NC
27403
Table 5Date: 4/15/21
Screened Bottom Top of Casing Depth to Water Free Product GroundwaterDateDate Water Interval of Well Elevation From Top of Casing Thickness ElevationInstalledLevel Measured (x to y feet BGS)(feet BGS)(feet)(feet)(feet)(feet)Comments
MW1 7/26/94 2/26/96 unknown unknown 100.00 13.79 0 86.21 2"-diameter type II monitoring wellMW27/26/94 2/26/96 unknown unknown 103.01 13.36 0 89.65 2"-diameter type II monitoring wellMW37/26/94 2/26/96 unknown unknown 99.98 16.13 0 83.85 2"-diameter type II monitoring well
MW4 unknown 2/26/96 unknown unknown 99.32 13.90 0 85.42 Type III vertical delineation wellMW5unknown2/26/96 unknown unknown 97.35 2"-diameter type II monitoring well
MW6 unknown 2/26/96 unknown unknown 96.01 11.42 0 84.59 2"-diameter type II monitoring well
MW7 unknown 2/26/96 unknown unknown 94.06 2"-diameter type II monitoring wellMW8unknown2/26/96 unknown unknown 89.62 2"-diameter type II monitoring well
MW9 unknown 2/26/96 unknown unknown 90.73 2"-diameter type II monitoring well
MW10 unknown 2/26/96 unknown unknown 87.65 6.78 0 80.87 2"-diameter type II monitoring wellMW11unknown2/26/96 unknown unknown 98.77 Type III vertical delineation well
MW12 unknown 2/26/96 unknown unknown 89.97 2"-diameter type II monitoring wellMW13unknown2/26/96 unknown unknown 86.91 2"-diameter type II monitoring wellMW14unknown2/26/96 unknown unknown 89.05 2"-diameter type II monitoring well
MW15 unknown 2/26/96 unknown unknown 85.65 2"-diameter type II monitoring wellNote:
1. All units in feet.
unknown
WELL CONSTRUCTION INFORMATIONIncident Name: Quality Mart #28 Incident No.: 13011
Well ID
Well CasingDepth
(feet BGS)
unknownunknown
unknown
well gone
unknownunknown
unknown
unknownunknown
unknownunknownunknown
unknown
unknownunknown
Table 6Date: 4/15/21
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BWell ID Date Collected
MW1 2/22/21 2,680 96.8 1,060 871 520 92.7 15.3 < 14.0 < 52.0 < 10.0 42.6 228 141 < 11.6 < 10.0 < 10.0 183 21.9MW22/22/21 < 0.380 < 0.410 < 0.500 < 1.60 17.6 85.6 < 0.760 < 0.700 < 2.60 < 0.500 < 0.530 < 1.00 < 0.690 < 0.580 < 0.500 < 0.500 < 0.820 < 0.560MW32/22/21 1,730 18.7 358 64.7 < 14.8 283 < 15.2 < 14.0 < 52.0 < 10.0 10.6 90.4 29.5 < 11.6 < 10.0 < 10.0 < 16.4 < 11.2MW42/22/21 < 0.380 < 0.410 < 0.500 < 1.60 180 < 0.700 < 0.760 < 0.700 3.84 < 0.500 < 0.530 < 1.00 < 0.690 < 0.580 < 0.500 < 0.500 < 0.820 < 0.560MW62/22/21 < 0.380 < 0.410 < 0.500 < 1.60 58 19.1 < 0.760 < 0.700 < 2.60 < 0.500 < 0.530 < 1.00 < 0.690 < 0.580 < 0.500 < 0.500 < 0.820 < 0.560MW102/22/21 177 14.6 235 15.5 28.4 31.7 8.04 3.35 < 5.20 78.1 25.6 27.9 83.4 157 116 18.2 < 1.64 < 1.121600600500207070704,000 70 70 6 70 0.7 3 0.03 400 400
2B Standard/EPA NRWQC/In-Stream Target Values 1.19 11 68 6,200 19 20,000 420 NE 20,000 60 2,700 400 1,500 0.7 2.5 0.025 390 13011.9 110 680 62,000 190 200,000 4,200 NE 200,000 600 27,000 4,000 15,000 7 25 0.25 3,900 1,3005,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 4,000,000 70,000 25,000 6,000 30,000 700 3,000 30 28,500 25,000
Notes:1. Results reported in µg/L. 2. < - denotes less than the sample's method detection limit.3. BOLD denotes a detected concentration above the method detection limit.
4. Shading denotes a petroleum-type compound with a concentration in excess of ten times the 2B Standard. 5. NE = Not Established.
Facility ID No.: 0-036354
Analytical MethodContaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesSUMMARY OF GROUNDWATER SAMPLING RESULTS
n-PropylbenzeneTetrachloroethyleneTrichloroethylene1,2,4 Trimethylbenzene1,3,5 Trimethylbenzenecis-1,2-DichloroetheneIsopropylbenzeneNaphthaleneMTBE2-Butanone (MEK)Vinyl chloride2L Standards
ten times the 2B/NRWQC/ISTVGross Contamination Levels (GCL)
Incident Name: Quality Mart #28 Incident No.: 13011
IPEn-Butylbenzenesec-Butylbenzene

FIGURES

ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.

APPENDIX A

Page 1 of 8 
 TECHNICAL METHODS/STANDARD PROCEDURES 

Equipment Decontamination 

All soil sampling equipment utilized during site assessment activities is decontaminated according 
to standard and accepted protocol.  Cleaning solutions range from clean potable water to acidic 
solutions or organic solvents depending on the contaminants present at the site.  Equipment 
utilized at sites, such as hand augers, contaminated with petroleum hydrocarbons, is generally 
decontaminated with a low‐sudsing detergent such as Luiquinox® and triple rinsed with distilled 
water.  Larger equipment, such as drill rigs and associated tools, is steam cleaned.  All 
decontamination procedures are completed within an established decontamination area which is 
located away from the active study area.  Frequency of equipment decontamination depends on 
the nature of work being performed, but in no case is decontamination performed less frequently 
than once per test (i.e., soil boring, well installation, sample collection, etc.).  Equipment blanks are 
collected as a quality control measure when required by job specifications. 

Soil Boring Installation 

Soil borings are completed using hand‐operated sampling tools, truck‐mounted drills, or 
Geoprobe® drilling rigs depending on the depth of sample collection and other site‐specific 
conditions.  Hand operated stainless‐steel bucket augers are utilized to collect soil samples at 
regular intervals to determine site stratigraphy and to test for the presence of volatile organic 
compounds.  Samples retrieved from the hand auger are necessarily disturbed during the augering 
process, but can provide accurate information on soil type and contaminant concentrations when 
properly interpreted.  Soil samples from hand augered borings are generally retrieved at one to 
two foot intervals. 

Truck‐mounted or Geoprobe® drilling equipment is often utilized when sample retrieval depths 
exceed twenty feet or subsurface conditions prevent utilization of hand augers (i.e., buried rocks, 
wood, bricks or other materials occur in the subsurface).  Truck‐mounted drilling rigs usually 
retrieve soil via a hollow‐stem auger/split spoon collection method.  Geoprobe® rigs usually employ 
a Macro‐Core® tube retrieval system.   

Hollow stem augers provide relatively undisturbed 2‐foot cores of soil samples.  Soil samples are 
generally collected at five foot intervals utilizing standard penetration test procedures as defined 
by the American Society for Testing and Materials (ASTM) or are pushed to the desired depth using 
the head of the drill rig.  The standard penetration test involves driving a 2" outside diameter by 1‐
3/8" inside diameter split‐spoon sampler a minimum distance of one foot with a 340‐lb. slide 
hammer falling a distance of 30 inches.   

A Geoprobe® rig is a hydraulically‐powered soil probing machine.  The probe utilizes static force 
and percussion to advance a small diameter sampling device into the subsurface.  The sampling 
apparatus provides relatively undisturbed 5‐foot cores of soil samples.  Soil samples are collected 
Page 2 of 8 
continuously.  The Macro‐Core® tube contains an inserted poly‐vinyl chloride (PVC) liner which 
retains the soil sample as the tube is driven into the ground.  The Macro‐Core® tube is 
decontaminated between each 5‐foot sample interval in a soil boring using a Liquinox and tap‐
water mixture.  A new PVC liner is used to collect soil from each sample interval in a soil boring.    

Soil samples retrieved from the hollow‐stem augers or Geoprobe are then carefully described 
according to the Unified Soil Classification System.  Soil descriptions are recorded on a soil 
boring log. 

Soil Sampling 

Soils to be analyzed by a North Carolina‐certified laboratory are prepared according to the specified 
analytical method.  Initially, soil samples are removed from the ground using either a hand auger, 
backhoe bucket, spilt spoon auger, or a Macro‐Core® sampling tube.  During the removal, care is 
taken to keep the disturbance of the soil structure to a minimum to reduce the loss of 
contaminants.  Once removed, the samples are placed in the proper sample container for the 
specified analytical method.  For samples collected for the MADEP VPH and EPA Method 8260, a 
TerraCore® sampler is used to collect one 5‐gram allotment of soil.  The allotment is placed in 
methanol‐preserved 40 mL vials.  Also, one 5‐gram allotment of soil is placed into sodium bisulfate‐
preserved 40 mL vials (one 5‐gram allotment per vial, 2 vials per sample) for the 8260 low 
concentration method.  A 250‐mL glass jar of the sampled soil is also collected to provide moisture 
content information.  Soils sampled for MADEP EPH, EPA Method 8270 and TPH 5030 and 3550 are 
placed in a 250‐mL glass jar (for MADEP EPH analysis an amber jar is required).  TPH 5030 samples 
are preserved in methanol similar to the 8260 analysis.  Field personnel wear new, disposable 
nitrile gloves during the collection of each sample.  

The soil samples are labeled with the sample location, sample identification, date and time of 
collection, and the analytical method.  The samples are placed on ice, sent to a laboratory, and 
analyzed before the expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody 
documentation is maintained for each sample collected in the field. 

If the soil is being sampled for volatile or semi‐volatile compounds, a portion of the collected soil is 
placed in a sealable bag and screened for volatile organic vapors.  Head screening procedures are 
described in the following paragraph.  

Headspace Screening 

Collected soil samples are routinely tested for the presence of volatile organic compounds (VOCs).  
After retrieval from the ground, a portion of a soil sample is placed in a sealable plastic bag.  The 
soil samples are then set aside for approximately five minutes so that volatile constituents present 
in the sample can reach equilibrium concentrations with headspace gases in the bag.  Once a 
suitable time period has passed, the probe of the sampling instrument, typically an Organic Vapor 
Monitor (OVM) or a Photo Ionization Detector (PID), is inserted into the bag and the relative 
concentration of total VOCs is measured and permanently recorded in a field note book.  VOC 
Page 3 of 8 
concentrations are measured using either a Thermo Electron Corp. Innova Series catalytic OVM or 
an Ion Science PhoCheck PID.  Both the OVM and PID instrumentation are periodically calibrated 
according to the manufacturer’s recommended procedures. 

The OVM and PID are qualitative tools employed to detect and estimate the concentration of 
organic or hydrocarbon vapors.  A thin probe is inserted through a small break in the seal of a 
bagged soil sample.  For the OVM, an air sample from the headspace of the bag is drawn through 
the probe into an internal chamber where the vapors are catalyzed.  The concentration of the VOCs 
is registered on a digital scale in parts per million (ppm).  For the PID, an air sample from the 
headspace of the bag is drawn across the face of a lamp causing the sample to emit photons, the 
presence of which are converted into a VOC ppm reading that is displayed.  Oxygen levels are field 
calibrated prior to each use.  VOC calibration occurs periodically depending upon use by using a 
span gas of known concentration in a process recommended by the manufacturer.   

Well Installation/Construction 

Monitoring wells are installed using hand‐operated sampling tools, a truck‐mounted drill rig, or a 
Geoprobe drilling rig depending on the depth of well and other site‐specific conditions. All 
monitoring wells are installed according to the requirements of 15A NCAC 2C‐Well Construction 
Standards.  Specifically, individual monitoring wells are constructed of 2‐inch diameter, schedule 40 
PVC casing riser and screen.  The screen interval is generally 10 to 15 feet of machine slotted PVC 
with a slot size of 0.010".  Only flush threaded joints are used.  The annulus space around the 
screen is filled with washed filter pack No. 2 sand.  The filter pack extends one to two feet above 
the top of the screen.  A one to two foot‐thick bentonite pellet seal is then placed above the filter 
pack.  The remainder of the well annulus is completely filled with a Portland (Type I/II) cement 
grout mixture.  A protective outer steel manhole, locking cap, and concrete pad is installed for each 
well. 

Type II Monitoring Well Construction  

Single‐cased monitoring wells are generally used in delineation of groundwater quality within the 
surficial aquifer.  The wells are constructed of 2‐inch diameter, schedule 40 PVC casing and screen.  
The screen interval is generally 10 to 15 feet of machine slotted PVC with a slot size of 0.010".  Only 
flush threaded joints are used.  The annulus space around the screen is filled with washed filter 
pack No. 2 sand.  The filter pack extends one to two feet above the top of the screen.  A one to two 
foot‐thick bentonite pellet seal is then placed above the filter pack.  The remainder of the well 
annulus is completely filled with a Portland (Type I/II) cement grout mixture.  A protective outer 
steel manhole, locking cap, and concrete pad are installed for each well. 

Type III Monitoring Well Construction 

Double‐cased monitoring wells are used in the delineation of groundwater quality within a deeper 
portion of the surficial aquifer or an additional aquifer (e.g. aquitard, bedrock).  A four to six‐inch 
outer casing is installed through the surficial aquifer until a sufficient depth or until the deeper 
Page 4 of 8 
aquifer is encountered.  The casing is secured with a Portland‐grout collar that is tremmied into the 
annular spaced from the bottom of the bore hole to the surface.  Once the grout has sufficiently 
cured, the bore hole is continued through the bottom of the outer casing to a depth approximately 
15 ‐ 20 feet beneath the outer casing.  The inner casing is constructed of 2‐inch diameter, schedule 
40 PVC casing riser and screen.  The screen interval is generally 5 to 10 feet of machine slotted PVC 
with a slot size of 0.010".  Only flush threaded joints are used.  The annulus space around the 
screen is filled with washed filter pack No. 2 sand.  The filter pack extends one to two feet above 
the top of the screen.  A one to two foot‐thick bentonite pellet seal is then placed above the filter 
pack.  The remainder of the well annulus is completely filled with the same Portland grout mixture 
used in the outer casing.  A protective outer steel manhole, locking cap, and concrete pad are 
installed for each well. 

Well Development 

Following installation of each well, surging and pumping or bailing techniques will be used to 
remove fines from the screened interval.  Groundwater is removed from each well until clear water 
is retrieved or a noticeable reduction in the amount of silt is achieved.  Purged groundwater is 
disposed of in an environmentally safe manner. 

Groundwater Sampling 

Petroleum Sites 

Groundwater samples are collected from temporary or permanent monitoring wells according to 
established sampling protocol.  When multiple monitoring wells or sampling points are sampled, 
sampling is completed beginning with the least contaminated well to the most contaminated well, 
if it is known.  When permanent monitoring wells for petroleum sites are sampled, the well is 
purged of a minimum of three well‐bore volumes prior to sample collection in order to assure that 
sampled water is representative of aquifer conditions.  In temporary wells, the first water which 
migrates into the open borehole is sampled.  Samples from both temporary and permanent 
monitoring wells are collected using individually wrapped disposable polyethylene bailers by field 
personnel wearing disposable nitrile gloves.  Only one well is sampled with a given bailer in order to 
prevent sample cross‐contamination.  During both well purging and sampling, proper protective 
clothing and equipment is used and is dependent upon the type and level of contaminants present. 
Also, field personnel change gloves between different samples to reduce the chance of cross‐
contamination. Water samples are transferred from the bailer to laboratory‐prepared sampling 
containers using slow emptying devices to reduce the chance of contamination loss through 
volatilization.  Preservatives, such as acids, are provided by the laboratory in pre‐prepared 
containers in which collected samples are placed if in‐field preservation is necessary.  The samples 
are labeled with the project name, project number, sample identification, required analysis, and 
date and time of collection.  The samples are placed on ice, shipped to a certified laboratory, and 
analyzed before the expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody 
documentation is maintained for each sample collected in the field.   

Page 5 of 8 

Other Groundwater Sampling Protocols 

When required by state or federal regulations, low‐flow groundwater sampling procedures are 
instituted.  Groundwater samples collected in low‐flow situations are collected using a peristaltic 
pump. A peristaltic pump is a type of positive displacement pump. The fluid is contained within a 
flexible tube fitted inside a circular pump casing.  A rotor with a number of rollers attached to the 
external circumference compresses the flexible tube. As the rotor turns, the part of tube under 
compression closes thus forcing the fluid to be pumped to move through the tube.  Groundwater 
parameters such as water level drawdown, pH, conductivity, dissolved oxygen (DO) and turbidity. 
Pumping rate, drawdown, and the time or volume required to obtain stabilization of parameter 
readings can be used as a future guide to purge the well. Measurements are collected at a pre‐
pumping established interval (typically five to ten minutes). Once all or a majority of the 
parameters have stabilized for three successive readings, stabilization has been achieved. In lieu of 
measuring all five parameters, a minimum subset would include pH, conductivity, and turbidity or 
DO. Three successive readings should be within ± 0.1 for pH, ± 3% for conductivity, and ± 10% for 
turbidity and DO.  

Upon parameter stabilization, sampling is initiated. Sampling flow rate is maintained at the estab‐
lished purge rate or is adjusted slightly to minimize aeration, bubble formation, turbulent filling of 
sample bottles, or loss of volatiles due to extended residence time in tubing. The same device used 
for purging is used to collect the groundwater sample. Generally, volatile parameters are sampled 
first. The sequence in which samples for inorganic parameters are collected is not determined 
unless filtered (dissolved) samples are collected. Preservatives, such as acids, are provided by the 
laboratory in pre‐prepared containers in which collected samples are placed if in‐field preservation 
is necessary.  The samples are labeled with the project name, project number, sample 
identification, required analysis, and date and time of collection.  The samples are placed on ice, 
shipped to a certified laboratory, and analyzed before the expiration of an analytical method’s 
prescribed holding time.  Chain‐of‐custody documentation is maintained for each sample collected 
in the field.   

During both well purging and sampling, proper protective clothing and equipment is used and is 
dependent upon the type and level of contaminants present.   Also, field personnel change gloves 
between different monitoring wells or sampling points to reduce the chance of cross‐
contamination.  When multiple monitoring wells or sampling points are sampled, sampling is 
completed beginning with the least contaminated well to the most contaminated well, if it is 
known. 

Stockpile Sampling 

The number of composite samples collected from a stockpile or a total quantity of excavated soil is 
based upon the cubic yardage.  One composite sample is collected for every 100 cubic yards of 
contaminated soil excavated.  The volume of a stockpile or total quantity of excavated soil is 
calculated by approximating the general geometry of a stockpile or estimating the capacity of the 
Page 6 of 8 
dump trucks used for hauling.  If a stockpile is sampled, a grid pattern is laid out on the stockpile, 
dividing the stockpile into segments of approximately 200 cubic yards.  Two soil borings are 
advanced within a grid and three soil samples are collected from each soil boring at various depths. 
 The six soil samples are mixed into a composite sample by a trained TerraQuest technician.  If truck 
loads are sampled, an aliquot sample is collected from the hauling trucks at a frequency based 
upon the capacity of the hauling trucks.   

Aliquots are gently mixed into a composite sample by a trained TerraQuest technician. Every effort 
is made to minimize the loss of contaminants through volatilization.  The composited soil samples 
are jarred in the appropriate laboratory‐prepared containers, labeled with the sample location, 
sample identification, date of collection, time of collection, the analytical method, and the 
preservative.  The samples are placed on ice, shipped to a laboratory, and analyzed before the 
expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody documentation is 
maintained for each sample collected in the field. 

Surface Water Sampling 

Surface water samples, specifically samples from creeks or streams, are collected from a 
moving/flowing portion of the creek or stream to ensure that stagnant water is not collected.  Field 
personnel are careful to collect samples from flowing areas that are not so turbulent as to cause a 
loss of volatile contaminants which might have been contained in the creek’s/stream’s water.  
Samples are collected by field personnel wearing disposable nitrile gloves.  Field personnel change 
gloves between different locations to reduce the chance of cross‐contamination.  Samples are 
collected directly from the appropriate creek or stream location and placed into the appropriate 
laboratory‐prepared containers.  Preservatives, such as acids, are provided by the laboratory in pre‐
prepared containers in which collected samples are placed if in‐field preservation is necessary. The 
samples are labeled with the project name, project number, sample identification, required 
analysis, and date and time of collection.  The samples are cooled on ice to approximately four 
degrees centigrade, shipped to a certified laboratory, and analyzed before the expiration of an 
analytical method’s prescribed holding time.  Chain‐of‐custody documentation is maintained for 
each sample collected in the field.    

Potable Well Sampling 

Groundwater samples from potable wells are collected from sampling points, typically spigots, 
located in the closest proximity to the potable well pump house as possible.  Prior to sample 
collection, the water is run for a sufficient amount of time to purge the bladder tank and assure 
that sampled water is representative of aquifer conditions.  Once purged, the flow rate is reduced 
and samples are placed in the appropriate laboratory prepared containers with the appropriate 
acid preservatives added if preservation of the sample is necessary.  The samples are labeled with 
the project name, project number, sample identification, required analysis, and date and time of 
collection.  The samples are placed on ice, shipped to a laboratory, and analyzed before the 
expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody documentation is 
maintained for each sample collected in the field.  
Page 7 of 8 
Public Water Supply Line Sampling 

Groundwater samples from public water supply lines are collected from sampling points, typically 
spigots.  To sample the spigot, the flow rate is reduced and samples are placed in the appropriate 
laboratory prepared containers.  The samples are labeled with the sample location, sample 
identification, date of collection, time of collection, and required analytical method.  The samples 
are placed on ice, shipped to a laboratory, and analyzed before the expiration of an analytical 
method’s prescribed holding time.  Chain‐of‐custody documentation is maintained for each sample 
collected in the field.  

Air Sampling 

Air samples are collected with the aide of a manually operated MityVac® pump manufactured by 
Pristech, Inc.  The air sampling process begins by connecting a length of rubber hose from the 
MityVac® pump to the port to be sampled, or by hanging the hose inside of an emissions stack in 
such a manner as to ensure no outside air causes dilution.  Another length of hose is fixed to the 
outlet port of the pump and is connected to a new Tedlar bag.  Once the pump is hooked up, a 
valve on the Tedlar collection bag is opened and air is manually forced into the bag by the pumping 
action of sampling personnel.   

Field Measurements 

Field measurements taken to determine the pH, conductivity, temperature, and dissolved oxygen 
concentration of a particular groundwater sample are taken directly after a particular monitoring 
well has been adequately purged.  This ensures that the groundwater parameter data collected is 
representative of the aquifer conditions at a given location.  Once purging of the monitoring well is 
complete, the decontaminated probe head and cord of the appropriate unit is lowered into the 
required monitoring well.  If the depth to water in a specific monitoring well is greater than the 
length of cord for a particular unit, a new, disposable bailer is slowly lowered into the appropriate 
monitoring well and a representative groundwater sample is retrieved.  A slow pouring device is 
fitted onto the end of the disposable bailer and the sample is slowly poured into a new, disposable 
plastic cup.  Groundwater parameter data are then collected from the groundwater in the cup 
using the required unit.   

For pH, conductivity, and temperature, a Hanna Instruments Model 991300 portable meter is 
utilized.  This unit is periodically calibrated and maintained in accordance with the unit’s operations 
manual by field personnel.  Prior to data collection, the unit is properly decontaminated to prevent 
cross‐contamination.  The unit is decontaminated between each sample.  The procedure used for 
sample measurement involves lowering the meter’s probe into the new, disposable cup containing 
the groundwater sample to be measured and slowly stirring the probe to force groundwater across 
the probe’s membrane.  The measurements displayed by the meter are then recorded.   

For dissolved oxygen concentration measurements, a YSI® Model 55 Handheld Dissolved Oxygen 
System is utilized.  This unit is periodically calibrated and maintained in accordance with the unit’s 
Page 8 of 8 
operations manual by field personnel.  Prior to data collection, the unit is properly decontaminated 
to prevent cross‐contamination.  The unit is decontaminated between each sample.  The procedure 
used for sample measurement involves adjusting the unit for the correct altitude where the 
sampling will take place and adjusting the reported units desired.  Once this is done, the unit’s 
probe is inserted into the groundwater sample to be measured and the probe is slowly stirred to 
force the groundwater across the probe’s membrane.  The measurements displayed by the unit are 
then recorded.   

For turbidity measurements, a Hach 2100P Portable Turbidity meter or equal equivalent is utilized.  
The unit is calibrated prior to use in accordance with the unit’s operations manual by field 
personnel.  Groundwater samples are collected in glass containers for measurement by the 
instrument.  The glass containers are washed with bottled‐water between each measurement 
collection.  Once the sample is collected and inserted into the instrument, the measurements 
displayed by the instrument are then recorded.   

APPENDIX B

Facility ID: 00-0-0000010578
Top of Casing Depth to Water Free Product Groundwater Depth to Water Free Product Groundwater Depth to Water Free Product Groundwater Depth to Water Free Product GroundwaterElevationFrom Top of Casing Thickness Elevation From Top of Casing Thickness Elevation From Top of Casing Thickness Elevation From Top of Casing Thickness Elevation
(feet)(feet)(feet)(feet)(feet)(feet)(feet)(feet)(feet)(feet)(feet)(feet)(feet)MW1 100.00 16.51 0 83.49 16.60 0 83.40 16.10 0 83.90 13.79 0.00 86.21MW2103.01 15.75 0 87.26 15.72 0 87.29 15.43 0 87.58 13.36 0.00 89.65
MW3 99.98 14.80 0 85.18 15.22 0 84.76 15.45 0 84.53 16.13 0.00 83.85MW499.32 16.08 0 83.24 15.68 0 83.64 13.90 0.00 85.42
MW5 97.35 10.89 0 86.46 10.02 0 87.33MW696.01 13.62 0 82.39 12.99 0 83.02 11.42 0.00 84.59MW794.06 14.27 0 79.79 13.65 0 80.41
MW8 89.62 8.43 0 81.19 8.20 0 81.42 well goneMW990.73 13.69 0 77.04 13.33 0 77.40
MW10 87.65 8.32 0 79.33 7.74 0 79.91 6.78 0.00 80.87MW1198.77 15.87 0 82.90 15.33 0 83.44MW1289.97 10.05 0 79.92 9.40 0 80.57
MW13 86.91 9.42 0 77.49 9.12 0 77.79MW1489.05 11.01 0 78.04 11.65 0 77.40
MW15 85.65 10.41 0 75.24 9.64 0 76.01Average Type II:15.69 12.13 13.90 average MW1-4,6,10 12.30Note:
1. All units in feet.
2/26/19968/12/1994 5/16/1995
Well ID
2/22/2021
HISTORICAL GROUNDWATER ELEVATION DATA
Incident Name: Quality Mart #28 Incident No.: 13011
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B3030CWell ID Date Collected
MW1 7/26/94 13,700 6,070 950 3,700 5,670 4,760 <100 <100 <100 <100 <100 1,760 <<100 <100 <100 <100 <100 <100 <100 <100 <100 <100 49
2/26/96 4,270 3,990 1,820 3,640 4,550 2,830 44.5 5.9 <1 <1 78.2 <1 <<1 87.7 27.7 322 220 <1 1.3 <1 1,380 374 15
2/22/21 2,680 96.8 1,060 871 520 92.7 15.3 < 14.0 < 15.2 < 12.0 < 10.0 < 10.0 < 52.0 < 10.0 42.6 < 14.2 228 141 < 20.0 < 11.6 < 10.0 < 10.0 183 21.9 -
MW2 7/26/94 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1
2/26/96 578 24.1 7.3 28.9 5,188 578 1.5 <1 <1 2.3 <1 <1 <<1 2.5 1.3 11.8 4.7 4 <1 <1 10.2 11.3 9
2/22/21 < 0.380 < 0.410 < 0.500 < 1.60 17.6 85.6 < 0.760 < 0.700 < 0.760 < 0.600 < 0.500 < 0.500 < 2.60 < 0.500 < 0.530 < 0.710 < 1.00 < 0.690 < 1.00 < 0.580 < 0.500 < 0.500 < 0.820 < 0.560 -
MW3 7/26/94 177 37.5 38 155 <5 850 <1 <1 <1 <1 <1 440 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 2
3/22/95 ---(261)------------129 -----(97)-10
2/26/96 4,684 86.8 291 211 <5 820 28.6 1.1 6.4 17.4 <1 <1 <<1 16.6 3.1 376 34.4 <1 <1 <1 223 67.2 -
2/22/21 1,730 18.7 358 64.7 < 14.8 283 < 15.2 < 14.0 < 15.2 < 12.0 < 10.0 < 10.0 < 52.0 < 10.0 10.6 < 14.2 90.4 29.5 < 20.0 < 11.6 < 10.0 < 10.0 < 16.4 < 11.2 -
MW4 11/30/94 8.5 <1 <1 <1 748 446 <1 <1 <1 <1 <1 57.9 <<1 <1 <1 <1 <1 <1 13.8 1.94 <1 <1 <1
1/23/95 <1 <1 <1 <1 700 550 <10 <10 <10 <10 <10 105 <<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 -
2/9/96 <20 <20 <20 <20 1,320 520 <20 <20 <20 <20 <20 195 <<20 <20 <20 <20 <20 <20 <20 <20 <20 <20 -
2/26/96 22.4 4.2 1.4 2.8 4,954 1,862 <1 1.2 7.4 <1 <1 590 <<1 2.6 <1 <1 <1 <1 3.2 <1 1.8 <1 -2/22/21 < 0.380 < 0.410 < 0.500 < 1.60 180 < 0.700 < 0.760 < 0.700 < 0.760 < 0.600 < 0.500 < 0.500 3.84 < 0.500 < 0.530 < 0.710 < 1.00 < 0.690 < 1.00 < 0.580 < 0.500 < 0.500 < 0.820 < 0.560 -MW5 11/30/94 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 12/26/96 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 3.7 <1 <1 <1 NAMW611/30/94 <1 <1 <1 <1 <1 369 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 32/27/95 <2 <2 <2 <2 <10 210 <2 <2 <2 <2 <2 100 <<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 -2/26/96 <1 1.5 <1 <1 <5 387 <1 <1 <1 <1 <1 114 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 -2/22/21 < 0.380 < 0.410 < 0.500 < 1.60 58 19.1 < 0.760 < 0.700 < 0.760 < 0.600 < 0.500 < 0.500 < 2.60 < 0.500 < 0.530 < 0.710 < 1.00 < 0.690 < 1.00 < 0.580 < 0.500 < 0.500 < 0.820 < 0.560 -MW7 11/30/94 <1 <1 <1 <1 <5 248 <1 <1 <1 <1 <1 59.6 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 22/26/96 <1 <1 <1 <1 <5 129 <1 <1 <1 <1 <1 11.7 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 NAMW81/23/95 3.2 <1 <1 <1 <5 134 <1 <1 <1 <1 <1 19.3 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1282/9/96 60 <2 5.6 <2 <10 164 <2 <2 <2 <2 <2 8 <<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 182/26/96 3.4 <1 1.3 <1 1.9 313 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 25MW91/23/95 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 272/9/96 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 52/26/96 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <17.1 <1 <1 <1 <1 <1 <1 <1 <1 <1 -MW10 2/27/95 400 34 700 380 <100 <100 <20 <20 <20 <20 <20 <20 <<20 <20 <20 800 320 <20 <20 <20 390 70 112/26/96 220 <50 258 <50 <250 <250 <50 <50 <50 <50 <50 <50 <<50 <50 <50 <50 <50 <50 <50 <50 <50 <50 -2/22/21 177 14.6 235 15.5 28.4 31.7 8.04 3.35 < 1.52 < 1.20 < 1.00 < 1.00 < 5.20 78.1 25.6 < 1.42 27.9 83.4 < 2.00 157 116 18.2 < 1.64 < 1.12 -MW11 3/22/95 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 165 <1 <1 <1 52/27/96 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <2.2 <1 <1 <1 <1 <1 305 2.1 <1 <1 NAMW123/22/95 <10 <10 <10 <10 <50 <50 <1 <10 <10 <10 <10 <10 <<10 <10 <10 <10 <10 <10 2,760 <10 <10 <10 12/26/96 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <5.7 <1 <1 <1 <1 <1 20.4 16.4 <1 <1 -MW13 3/22/95 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <36.4 <1 <1 <1 <1 <1 255 12.5 <1 <1 52/26/96 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <33 <1 <1 <1 <1 <1 318 <1 <1 <1 -MW14 3/22/95 17 3 17 5 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 1,300 12 <1 <1 <1 10 <1 42/26/96 32.2 2.8 54.6 11.2 <5 <5 35.7 <1 <1 <1 <1 <1 <<1 16.6 1.3 1,093 25.4 <1 <1 <1 12.4 3.4 -MW15 4/24/95 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 <1 <1 <1 <1 <1 <1 <1 32/26/96 <1 <1 <1 <1 <5 <5 <1 <1 <1 <1 <1 <1 <<1 <1 <1 96.8 <1 <1 <1 <1 <1 <1 -1 600 600 500 20 70 70 70 3,000 70 0.02 0.4 70 70 25 6 70 70 0.7 3 400 400 152B Standard/EPA NRWQC/In-Stream Target Values 1.19 11 68 6,200 19 20,000 420 NE NE 60 0.02 9.9 20,000 60 2,700 320 400 1,500 NE 0.7 2.5 0.025 390 13011.9 110 680 62,000 190 200,000 4,200 NE NE 600 0.2 99 200,000 600 27,000 3,200 4,000 15,000 NE 7 25 0.25 3,900 1,3005,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 NE 70,000 50 400 70,000 25,000 11,700 6,000 30,000 70,000 700 3,000 28,500 25,000 15,000Notes:1. Results reported in µg/L. 2. < - denotes less than the sample's method detection limit.3. BOLD denotes a detected concentration above the method detection limit. 4. Shading denotes a petroleum-type compound with a concentration in excess of ten times the 2B Standard. 5. Italics indicates a GCL violation of a petroleum-type compound.6. NE = Not Established.7. Values in parentheses indicate tentatively identified compounds by EPA Method 625 Base/Neutral Organics.
ten times the 2B/NRWQC/ISTV
Gross Contamination Levels (GCL)p-IsopropyltolueneNaphthalenen-PropylbenzeneTotal XylenesStyreneTetrachloroethylene1,2,4 Trimethylbenzene2L Standards IsopropylbenzeneMTBE1,2-Dibromoethane (EDB)Vinyl chlorideLead (Total)Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzene2-Butanone (MEK)ChloroethaneChloroform1,3,5 TrimethylbenzeneIncident Name: Quality Mart #28 Incident No.: 13011 Facility ID No.: 0-036354
IPEn-Butylbenzenesec-Butylbenzene1,2-Dichloroethanecis-1,2-DichloroetheneHISTORICAL SUMMARY OF GROUNDWATER SAMPLING RESULTS
Trichloroethylene

APPENDIX C

Analytical Report 689430
for
Terraquest Environmental Consultants, P.C.
Project Manager: Ryan Kerins
QM# 28
03.24.2021
02294
4147 Greenbriar Dr.
Stafford, TX 77477
Xenco-Houston (EPA Lab Code: TX00122):
Texas (T104704215-20-38), Arizona (AZ0765), Florida (E871002-33), Louisiana (03054)
Oklahoma (2020-014), North Carolina (681), Arkansas (20-035-0)
Xenco-Dallas (EPA Lab Code: TX01468):
Texas (T104704295-20-26), Arizona (AZ0809)
Xenco-El Paso (EPA Lab Code: TX00127): Texas (T104704221-20-18)
Xenco-Lubbock (EPA Lab Code: TX00139): Texas (T104704219-20-24)
Xenco-Midland (EPA Lab Code: TX00158): Texas (T104704400-20-21)
Xenco-Carlsbad (LELAP): Louisiana (05092)
Xenco-San Antonio (EPA Lab Code: TNI02385): Texas (T104704534-20-8)
Xenco-Tampa: Florida (E87429), North Carolina (483)
Page 1 of 40 Final 1.000

A Small Business and Minority Company
Houston - Dallas - Midland - Tampa - Phoenix - Lubbock - San Antonio - El Paso - Atlanta - New Mexico
Project Manager: Ryan Kerins
Terraquest Environmental Consultants, P.C.
100 E. Ruffin Street
Mebane, NC 27302

Reference: Eurofins Xenco, LLC Report No(s): 689430
QM# 28
Project Address:
Ryan Kerins:
We are reporting to you the results of the analyses performed on the samples received under the project name
referenced above and identified with the Eurofins Xenco, LLC Report Number(s) 689430. All results being
reported under this Report Number apply to the samples analyzed and properly identified with a Laboratory ID
number. Subcontracted analyses are identified in this report with either the NELAC certification number of
the subcontract lab in the analyst ID field, or the complete subcontracted report attached to this report.
Unless otherwise noted in a Case Narrative, all data reported in this Analytical Report are in compliance with
NELAC standards. The uncertainty of measurement associated with the results of analysis reported is available
upon request. Should insufficient sample be provided to the laboratory to meet the method and NELAC Matrix
Duplicate and Matrix Spike requirements, then the data will be analyzed, evaluated and reported using all
other available quality control measures.
The validity and integrity of this report will remain intact as long as it is accompanied by this letter and
reproduced in full, unless written approval is granted by Eurofins Xenco, LLC. This report will be filed for at
least 5 years in our archives after which time it will be destroyed without further notice, unless otherwise
arranged with you. The samples received, and described as recorded in Report No. 689430 will be filed for 45
days, and after that time they will be properly disposed without further notice, unless otherwise arranged with
you. We reserve the right to return to you any unused samples, extracts or solutions related to them if we
consider so necessary (e.g., samples identified as hazardous waste, sample sizes exceeding analytical standard
practices, controlled substances under regulated protocols, etc).
We thank you for selecting Eurofins Xenco, LLC to serve your analytical needs. If you have any questions
concerning this report, please feel free to contact us at any time.
Respectfully,
03.24.2021
Project Manager
Chad Bechtold
Page 2 of 40 Final 1.000
Sample Cross Reference 689430
Terraquest Environmental Consultants, P.C., Mebane, NC
QM# 28
Sample Id
MW1
MW2
MW3
MW4
MW6
MW10
02.22.2021 11:57
02.22.2021 11:18
02.22.2021 11:27
02.22.2021 11:09
02.22.2021 10:45
02.22.2021 10:30
Date Collected Lab Sample Id
Not Analyzed
Not Analyzed
Not Analyzed
Not Analyzed
Not Analyzed
Not Analyzed

Sample DepthMatrix
W
W
W
W
W
W
Page 3 of 40 Final 1.000
CASE NARRATIVE
689430Work Order Number(s):
03.24.2021Report Date: 02294Project ID:
Project Name: QM# 28
Date Received:
Client Name: Terraquest Environmental Consultants, P.C.
02.25.2021
None
Sample receipt non conformances and comments:
Sample receipt non conformances and comments per sample:
Page 4 of 40 Final 1.000
Flagging Criteria
X In our quality control review of the data a QC deficiency was observed and flagged as noted. MS/MSD recoveries were found to be
outside of the laboratory control limits due to possible matrix /chemical interference, or a concentration of target analyte high enough
to affect the recovery of the spike concentration. This condition could also affect the relative percent difference in the MS/MSD.
B A target analyte or common laboratory contaminant was identified in the method blank. Its presence indicates possible field or
laboratory contamination.
D The sample(s) were diluted due to targets detected over the highest point of the calibration curve, or due to matrix interference.
Dilution factors are included in the final results. The result is from a diluted sample.
E The data exceeds the upper calibration limit; therefore, the concentration is reported as estimated.
F RPD exceeded lab control limits.
J The target analyte was positively identified below the quantitation limit and above the detection limit.
U Analyte was not detected.
L The LCS data for this analytical batch was reported below the laboratory control limits for this analyte. The department supervisor and
QA Director reviewed data. The samples were either reanalyzed or flagged as estimated concentrations.
H The LCS data for this analytical batch was reported above the laboratory control limits. Supporting QC Data were reviewed by the
Department Supervisor and QA Director. Data were determined to be valid for reporting.
K Sample analyzed outside of recommended hold time.

JN A combination of the "N" and the "J" qualifier. The analysis indicates that the analyte is "tentatively identified" and the associated
numerical value may not be consistent with the amount actually present in the environmental sample.
** Surrogate recovered outside laboratory control limit.
BRL Below Reporting Limit. ND Not Detected.
RL Reporting Limit
MDL Method Detection Limit SDL Sample Detection Limit LOD Limit of Detection
PQL Practical Quantitation Limit MQL Method Quantitation Limit LOQ Limit of Quantitation
DL Method Detection Limit
NC Non-Calculable
SMP Client Sample BLK Method Blank
BKS/LCS Blank Spike/Laboratory Control Sample BKSD/LCSD Blank Spike Duplicate/Laboratory Control Sample Duplicate
MD/SD Method Duplicate/Sample Duplicate MS Matrix Spike MSD: Matrix Spike Duplicate
+ NELAC certification not offered for this compound.

* (Next to analyte name or method description) = Outside XENCO's scope of NELAC accreditation
Page 5 of 40 Final 1.000
Page 6 of 40 Final 1.000
Page 7 of 40 Final 1.000
Sample SUB-Contract#: 78534
02.26.2021 07:14Date Printed:
Page 1 of 1
Date/Time: 02.26.2021 07:14
689430-001
689430-002
689430-003
689430-004
689430-005
689430-006
Sample Id
W
W
W
W
W
W
Matrix
SUB-Contracting Comments:
Created by:
Delivery Priority:
Air Bill No.:
Lisandra Torres
Method
SM6200B
SM6200B
SM6200B
SM6200B
SM6200B
SM6200B
Cont #
8971
8972
8973
8974
8975
8976
Subcontractor: Eurofins TestAmerica-Pensacola, FL
Method Name
VOCs by GC/MS by SM6200B
VOCs by GC/MS by SM6200B
VOCs by GC/MS by SM6200B
VOCs by GC/MS by SM6200B
VOCs by GC/MS by SM6200B
VOCs by GC/MS by SM6200B
Lab PM
Chad Bechtold
Chad Bechtold
Chad Bechtold
Chad Bechtold
Chad Bechtold
Chad Bechtold
Received By:
Date/ Time Received:
Cooler Temperature:
Send report to:
E-Mail:
Address:4147 Greenbriar Dr.
Stafford, TX 77477
Chad Bechtold
[e-mail]

Sample Collection
02.22.21 11:57
02.22.21 11:18
02.22.21 11:27
02.22.21 11:09
02.22.21 10:45
02.22.21 10:30
Relinquished By:
Date/ Time Relinquished:
PO#:
MW1
MW2
MW3
MW4
MW6
MW10
Client Sample Id
689430
Invoice To:[e-mail]; [e-mail]; [e-mail]
Lisandra Torres
02.26.2021
Relinquished By:
Date/ Time Relinquished:
Received By:
Date/ Time Received:
TAT:Standard
Subcontractor: Analyze for method and samples specified on COC as requested. Any deviation, must be approved by a Xenco PM.
Page 8 of 40 Final 1.000
Prelogin/Nonconformance Report- Sample Log-In
Eurofins Xenco, LLC
689430Work Order #:
02.25.2021 11.30.00 AMDate/ Time Received:
Terraquest Environmental Consultants, PClient:
Sample Receipt Checklist
Checklist completed by: Date:
Checklist reviewed by:
Date:
Chad Bechtold
02.26.2021
02.28.2021
#2 *Shipping container in good condition?
#3 *Samples received on ice?
#4 *Custody Seals intact on shipping container/ cooler?
#5 Custody Seals intact on sample bottles?
#6*Custody Seals Signed and dated?
#7 *Chain of Custody present?
#8 Any missing/extra samples?
#9 Chain of Custody signed when relinquished/ received?
#10 Chain of Custody agrees with sample labels/matrix?
#11 Container label(s) legible and intact?
#12 Samples in proper container/ bottle?
#13 Samples properly preserved?
#14 Sample container(s) intact?
#15 Sufficient sample amount for indicated test(s)?
#16 All samples received within hold time?
#17 Subcontract of sample(s)?
#18 Water VOC samples have zero headspace?
Yes
Yes
N/A
N/A
N/A
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes

SOME TIME ON THE CONTAINER
DOES NOT MATCH COC FOLLOW
COC

#1 *Temperature of cooler(s)?3.4
Acceptable Temperature Range: 0 - 6 degC
Air and Metal samples Acceptable Range: Ambient
* Must be completed for after-hours delivery of samples prior to placing in the refrigerator
Analyst: PH Device/Lot#:TOL
Comments
Lisandra Torres
Temperature Measuring device used : HOU-272
Page 9 of 40 Final 1.000
ANALYTICAL REPORT
Eurofins TestAmerica, Pensacola
3355 McLemore Drive
Pensacola, FL 32514
Tel: [phone]
Laboratory Job ID: 400-199981-1
Client Project/Site: 689430 - SM6200B
For:
Eurofins Xenco
4147 Greenbriar Dr
Stafford, Texas 77477
Attn: Mr. Chad Bechtold
Authorized for release by:
3/10/2021 3:21:20 PM
Marty Edwards, Client Service Manager
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for
accredited parameters, exceptions are noted in this report. This report may not be reproduced
except in full, and with written approval from the laboratory. For questions please contact the
Project Manager at the e-mail address or telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic signature is
intended to be the legally binding equivalent of a traditionally handwritten signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.
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Page 10 of 40 Final 1.000
Table of Contents
Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Laboratory Job ID: 400-199981-1
Page 2 of 31 Eurofins TestAmerica, Pensacola3/10/2021
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
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Page 11 of 40 Final 1.000
Case Narrative
Client: Eurofins Xenco Job ID: 400-199981-1
Project/Site: 689430 - SM6200B
Job ID: 400-199981-1
Laboratory: Eurofins TestAmerica, Pensacola
Narrative
Job Narrative
400-199981-1
Comments
No additional comments.
Receipt
The samples were received on 3/2/2021 10:37 AM. Unless otherwise noted below, the samples arrived in good condition, and where
required, properly preserved and on ice. The temperature of the cooler at receipt was 3.4º C.
Receipt Exceptions
One or more containers for the following sample was received broken or leaking: 400-199981-5 (689430-006). Recieved three voas, two
were recieved broken.
GC/MS VOA
Method SM6200-B: The following samples were diluted to bring the concentration of target analytes within the calibration range:
689430-001 MW1 (400-199981-1), 689430-003 MW3 (400-199981-3) and 689430-006 MW-10 (400-199981-6). Elevated reporting limits
(RLs) are provided.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
VOA Prep
No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.
Eurofins TestAmerica, PensacolaPage 3 of 31 3/10/2021
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Page 12 of 40 Final 1.000
Detection Summary
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Client Sample ID: 689430-001 MW1 Lab Sample ID: 400-199981-1
Benzene
RL
20.0 ug/L
MDL
7.60
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA202680SM6200-B
Diisopropyl ether 20.0 ug/L14.0 Total/NA2092.7 SM6200-B
Ethylbenzene 20.0 ug/L10.0 Total/NA201060SM6200-B
Isopropylbenzene 20.0 ug/L10.6 Total/NA2042.6 SM6200-B
Methyl tert-butyl ether 20.0 ug/L14.8 Total/NA20520SM6200-B
m-Xylene & p-Xylene 100 ug/L32.0 Total/NA20821SM6200-B
Naphthalene 20.0 ug/L20.0 Total/NA20228SM6200-B
n-Butylbenzene 20.0 ug/L15.2 Total/NA2015.3 J SM6200-B
N-Propylbenzene 20.0 ug/L13.8 Total/NA20141SM6200-B
o-Xylene 100 ug/L12.0 Total/NA2049.7 J SM6200-B
Toluene 20.0 ug/L8.20 Total/NA2096.8 SM6200-B
1,2,4-Trimethylbenzene 20.0 ug/L16.4 Total/NA20183SM6200-B
1,3,5-Trimethylbenzene 20.0 ug/L11.2 Total/NA2021.9 SM6200-B
Xylenes, Total 200 ug/L32.0 Total/NA20871SM6200-B
Client Sample ID: 689430-002 MW2 Lab Sample ID: 400-199981-2
Diisopropyl ether
RL
1.00 ug/L
MDL
0.700
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA185.6 SM6200-B
Methyl tert-butyl ether 1.00 ug/L0.740 Total/NA117.6 SM6200-B
Client Sample ID: 689430-003 MW3 Lab Sample ID: 400-199981-3
Benzene
RL
20.0 ug/L
MDL
7.60
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA201730SM6200-B
Diisopropyl ether 20.0 ug/L14.0 Total/NA20283SM6200-B
Ethylbenzene 20.0 ug/L10.0 Total/NA20358SM6200-B
Isopropylbenzene 20.0 ug/L10.6 Total/NA2010.6 J SM6200-B
m-Xylene & p-Xylene 100 ug/L32.0 Total/NA2048.5 J SM6200-B
Naphthalene 20.0 ug/L20.0 Total/NA2090.4 SM6200-B
N-Propylbenzene 20.0 ug/L13.8 Total/NA2029.5 SM6200-B
o-Xylene 100 ug/L12.0 Total/NA2016.2 J SM6200-B
Toluene 20.0 ug/L8.20 Total/NA2018.7 J SM6200-B
Xylenes, Total 200 ug/L32.0 Total/NA2064.7 J SM6200-B
Client Sample ID: 689430-004 MW4 Lab Sample ID: 400-199981-4
2-Butanone (MEK)
RL
25.0 ug/L
MDL
2.60
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA1J3.84 SM6200-B
Methyl tert-butyl ether 1.00 ug/L0.740 Total/NA1180SM6200-B
Client Sample ID: 689430-005 MW6 Lab Sample ID: 400-199981-5
Diisopropyl ether
RL
1.00 ug/L
MDL
0.700
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA119.1 SM6200-B
Methyl tert-butyl ether 1.00 ug/L0.740 Total/NA158.0 SM6200-B
Client Sample ID: 689430-006 MW-10 Lab Sample ID: 400-199981-6
Benzene
RL
2.00 ug/L
MDL
0.760
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA2177SM6200-B
cis-1,2-Dichloroethene 2.00 ug/L1.00 Total/NA278.1 SM6200-B
Diisopropyl ether 2.00 ug/L1.40 Total/NA231.7 SM6200-B
Eurofins TestAmerica, Pensacola
This Detection Summary does not include radiochemical test results.
Page 4 of 31 3/10/2021
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Page 13 of 40 Final 1.000
Detection Summary
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Client Sample ID: 689430-006 MW-10 (Continued)Lab Sample ID: 400-199981-6
Ethylbenzene
RL
2.00 ug/L
MDL
1.00
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA2235SM6200-B
Isopropylbenzene 2.00 ug/L1.06 Total/NA225.6 SM6200-B
Methyl tert-butyl ether 2.00 ug/L1.48 Total/NA228.4 SM6200-B
m-Xylene & p-Xylene 10.0 ug/L3.20 Total/NA213.5 SM6200-B
Naphthalene 2.00 ug/L2.00 Total/NA227.9 SM6200-B
n-Butylbenzene 2.00 ug/L1.52 Total/NA28.04 SM6200-B
N-Propylbenzene 2.00 ug/L1.38 Total/NA283.4 SM6200-B
o-Xylene 10.0 ug/L1.20 Total/NA21.99 J SM6200-B
sec-Butylbenzene 2.00 ug/L1.40 Total/NA23.35 SM6200-B
Tetrachloroethene 2.00 ug/L1.16 Total/NA2157SM6200-B
Toluene 2.00 ug/L0.820 Total/NA214.6 SM6200-B
Trichloroethene 2.00 ug/L1.00 Total/NA2116SM6200-B
Vinyl chloride 2.00 ug/L1.00 Total/NA218.2 SM6200-B
Xylenes, Total 20.0 ug/L3.20 Total/NA215.5 J SM6200-B
Eurofins TestAmerica, Pensacola
This Detection Summary does not include radiochemical test results.
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Page 14 of 40 Final 1.000
Sample Summary
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID
400-199981-1 689430-001 MW1 Water 02/22/21 11:57 03/02/21 10:37
400-199981-2 689430-002 MW2 Water 02/22/21 11:18 03/02/21 10:37
400-199981-3 689430-003 MW3 Water 02/22/21 11:27 03/02/21 10:37
400-199981-4 689430-004 MW4 Water 02/22/21 11:09 03/02/21 10:37
400-199981-5 689430-005 MW6 Water 02/22/21 10:45 03/02/21 10:37
400-199981-6 689430-006 MW-10 Water 02/22/21 10:30 03/02/21 10:37
Eurofins TestAmerica, Pensacola
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Page 15 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-1Client Sample ID: 689430-001 MW1
Matrix: WaterDate Collected: 02/22/21 11:57
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Acetone 200 U 500 200 ug/L 03/05/21 17:35 20
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
20.0 7.60 ug/L 03/05/21 17:35 20Benzene2680
20.0 10.8 ug/L 03/05/21 17:35 20Bromobenzene10.8 U
20.0 10.4 ug/L 03/05/21 17:35 20Bromochloromethane10.4 U
20.0 10.0 ug/L 03/05/21 17:35 20Bromodichloromethane10.0 U
100 14.2 ug/L 03/05/21 17:35 20Bromoform14.2 U
20.0 19.6 ug/L 03/05/21 17:35 20Bromomethane19.6 U
500 52.0 ug/L 03/05/21 17:35 202-Butanone (MEK)52.0 U
20.0 10.0 ug/L 03/05/21 17:35 20Carbon tetrachloride 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 20Chlorobenzene10.0 U
20.0 15.2 ug/L 03/05/21 17:35 20Chloroethane15.2 U
20.0 12.0 ug/L 03/05/21 17:35 20Chloroform12.0 U
20.0 16.6 ug/L 03/05/21 17:35 20Chloromethane16.6 U
20.0 11.4 ug/L 03/05/21 17:35 202-Chlorotoluene 11.4 U
20.0 11.2 ug/L 03/05/21 17:35 204-Chlorotoluene 11.2 U
20.0 10.0 ug/L 03/05/21 17:35 20cis-1,2-Dichloroethene 10.0 U
100 10.0 ug/L 03/05/21 17:35 20cis-1,3-Dichloropropene 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 20Dibromochloromethane10.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,2-Dibromoethane (EDB)10.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,2-Dichlorobenzene 10.0 U
20.0 10.8 ug/L 03/05/21 17:35 201,3-Dichlorobenzene 10.8 U
20.0 12.8 ug/L 03/05/21 17:35 201,4-Dichlorobenzene 12.8 U
20.0 17.0 ug/L 03/05/21 17:35 20Dichlorodifluoromethane17.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,1-Dichloroethane 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,2-Dichloroethane 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,1-Dichloroethene 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,2-Dichloropropane 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,3-Dichloropropane 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 202,2-Dichloropropane 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 201,1-Dichloropropene 10.0 U
20.0 14.0 ug/L 03/05/21 17:35 20Diisopropyl ether 92.7
2000 1040 ug/L 03/05/21 17:35 20Ethanol1040U
20.0 10.0 ug/L 03/05/21 17:35 20Ethylbenzene1060
500 62.0 ug/L 03/05/21 17:35 202-Hexanone 62.0 U
20.0 10.6 ug/L 03/05/21 17:35 20Isopropylbenzene42.6
100 60.0 ug/L 03/05/21 17:35 20Methylene Chloride 60.0 U
500 36.0 ug/L 03/05/21 17:35 204-Methyl-2-pentanone (MIBK)36.0 U
20.0 14.8 ug/L 03/05/21 17:35 20Methyl tert-butyl ether 520
100 32.0 ug/L 03/05/21 17:35 20m-Xylene & p-Xylene 821
20.0 20.0 ug/L 03/05/21 17:35 20Naphthalene228
20.0 15.2 ug/L 03/05/21 17:35 20n-Butylbenzene 15.3 J
20.0 13.8 ug/L 03/05/21 17:35 20N-Propylbenzene 141
100 12.0 ug/L 03/05/21 17:35 20o-Xylene 49.7 J
20.0 14.2 ug/L 03/05/21 17:35 20p-Cymene (p-Isopropyltoluene)14.2 U
20.0 14.0 ug/L 03/05/21 17:35 20sec-Butylbenzene 14.0 U
20.0 20.0 ug/L 03/05/21 17:35 20Styrene20.0 U
20.0 12.6 ug/L 03/05/21 17:35 20tert-Butylbenzene 12.6 U
20.0 10.4 ug/L 03/05/21 17:35 201,1,1,2-Tetrachloroethane 10.4 U
20.0 10.0 ug/L 03/05/21 17:35 201,1,2,2-Tetrachloroethane 10.0 U
Eurofins TestAmerica, Pensacola
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Page 16 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-1Client Sample ID: 689430-001 MW1
Matrix: WaterDate Collected: 02/22/21 11:57
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
Tetrachloroethene 11.6 U 20.0 11.6 ug/L 03/05/21 17:35 20
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
20.0 8.20 ug/L 03/05/21 17:35 20Toluene96.8
20.0 10.0 ug/L 03/05/21 17:35 20trans-1,2-Dichloroethene 10.0 U
100 10.0 ug/L 03/05/21 17:35 20trans-1,3-Dichloropropene 10.0 U
20.0 14.0 ug/L 03/05/21 17:35 201,2,3-Trichlorobenzene 14.0 U
20.0 16.4 ug/L 03/05/21 17:35 201,2,4-Trichlorobenzene 16.4 U
20.0 10.0 ug/L 03/05/21 17:35 201,1,1-Trichloroethane 10.0 U
100 10.0 ug/L 03/05/21 17:35 201,1,2-Trichloroethane 10.0 U
20.0 10.0 ug/L 03/05/21 17:35 20Trichloroethene10.0 U
20.0 10.4 ug/L 03/05/21 17:35 20Trichlorofluoromethane10.4 U
100 16.8 ug/L 03/05/21 17:35 201,2,3-Trichloropropane 16.8 U
20.0 16.4 ug/L 03/05/21 17:35 201,2,4-Trimethylbenzene 183
20.0 11.2 ug/L 03/05/21 17:35 201,3,5-Trimethylbenzene 21.9
500 40.0 ug/L 03/05/21 17:35 20Vinyl acetate 40.0 U
20.0 10.0 ug/L 03/05/21 17:35 20Vinyl chloride 10.0 U
200 32.0 ug/L 03/05/21 17:35 20Xylenes, Total 871
4-Bromofluorobenzene 96 78-118 03/05/21 17:35 20
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 97 03/05/21 17:35 2081-121
Toluene-d8 (Surr)100 03/05/21 17:35 2080-120
Eurofins TestAmerica, Pensacola
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Page 17 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-2Client Sample ID: 689430-002 MW2
Matrix: WaterDate Collected: 02/22/21 11:18
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Acetone 10.0 U 25.0 10.0 ug/L 03/05/21 15:50 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.00 0.380 ug/L 03/05/21 15:50 1Benzene0.380 U
1.00 0.540 ug/L 03/05/21 15:50 1Bromobenzene0.540 U
1.00 0.520 ug/L 03/05/21 15:50 1Bromochloromethane0.520 U
1.00 0.500 ug/L 03/05/21 15:50 1Bromodichloromethane0.500 U
5.00 0.710 ug/L 03/05/21 15:50 1Bromoform0.710 U
1.00 0.980 ug/L 03/05/21 15:50 1Bromomethane0.980 U
25.0 2.60 ug/L 03/05/21 15:50 12-Butanone (MEK)2.60 U
1.00 0.500 ug/L 03/05/21 15:50 1Carbon tetrachloride 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 1Chlorobenzene0.500 U
1.00 0.760 ug/L 03/05/21 15:50 1Chloroethane0.760 U
1.00 0.600 ug/L 03/05/21 15:50 1Chloroform0.600 U
1.00 0.830 ug/L 03/05/21 15:50 1Chloromethane0.830 U
1.00 0.570 ug/L 03/05/21 15:50 12-Chlorotoluene 0.570 U
1.00 0.560 ug/L 03/05/21 15:50 14-Chlorotoluene 0.560 U
1.00 0.500 ug/L 03/05/21 15:50 1cis-1,2-Dichloroethene 0.500 U
5.00 0.500 ug/L 03/05/21 15:50 1cis-1,3-Dichloropropene 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 1Dibromochloromethane0.500 U
1.00 0.500 ug/L 03/05/21 15:50 11,2-Dibromoethane (EDB)0.500 U
1.00 0.500 ug/L 03/05/21 15:50 11,2-Dichlorobenzene 0.500 U
1.00 0.540 ug/L 03/05/21 15:50 11,3-Dichlorobenzene 0.540 U
1.00 0.640 ug/L 03/05/21 15:50 11,4-Dichlorobenzene 0.640 U
1.00 0.850 ug/L 03/05/21 15:50 1Dichlorodifluoromethane0.850 U
1.00 0.500 ug/L 03/05/21 15:50 11,1-Dichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 11,2-Dichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 11,1-Dichloroethene 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 11,2-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 11,3-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 12,2-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 11,1-Dichloropropene 0.500 U
1.00 0.700 ug/L 03/05/21 15:50 1Diisopropyl ether 85.6
100 52.0 ug/L 03/05/21 15:50 1Ethanol52.0 U
1.00 0.500 ug/L 03/05/21 15:50 1Ethylbenzene0.500 U
25.0 3.10 ug/L 03/05/21 15:50 12-Hexanone 3.10 U
1.00 0.530 ug/L 03/05/21 15:50 1Isopropylbenzene0.530 U
5.00 3.00 ug/L 03/05/21 15:50 1Methylene Chloride 3.00 U
25.0 1.80 ug/L 03/05/21 15:50 14-Methyl-2-pentanone (MIBK)1.80 U
1.00 0.740 ug/L 03/05/21 15:50 1Methyl tert-butyl ether 17.6
5.00 1.60 ug/L 03/05/21 15:50 1m-Xylene & p-Xylene 1.60 U
1.00 1.00 ug/L 03/05/21 15:50 1Naphthalene1.00 U
1.00 0.760 ug/L 03/05/21 15:50 1n-Butylbenzene 0.760 U
1.00 0.690 ug/L 03/05/21 15:50 1N-Propylbenzene 0.690 U
5.00 0.600 ug/L 03/05/21 15:50 1o-Xylene 0.600 U
1.00 0.710 ug/L 03/05/21 15:50 1p-Cymene (p-Isopropyltoluene)0.710 U
1.00 0.700 ug/L 03/05/21 15:50 1sec-Butylbenzene 0.700 U
1.00 1.00 ug/L 03/05/21 15:50 1Styrene1.00 U
1.00 0.630 ug/L 03/05/21 15:50 1tert-Butylbenzene 0.630 U
1.00 0.520 ug/L 03/05/21 15:50 11,1,1,2-Tetrachloroethane 0.520 U
1.00 0.500 ug/L 03/05/21 15:50 11,1,2,2-Tetrachloroethane 0.500 U
Eurofins TestAmerica, Pensacola
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Page 18 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-2Client Sample ID: 689430-002 MW2
Matrix: WaterDate Collected: 02/22/21 11:18
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
Tetrachloroethene 0.580 U 1.00 0.580 ug/L 03/05/21 15:50 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.00 0.410 ug/L 03/05/21 15:50 1Toluene0.410 U
1.00 0.500 ug/L 03/05/21 15:50 1trans-1,2-Dichloroethene 0.500 U
5.00 0.500 ug/L 03/05/21 15:50 1trans-1,3-Dichloropropene 0.500 U
1.00 0.700 ug/L 03/05/21 15:50 11,2,3-Trichlorobenzene 0.700 U
1.00 0.820 ug/L 03/05/21 15:50 11,2,4-Trichlorobenzene 0.820 U
1.00 0.500 ug/L 03/05/21 15:50 11,1,1-Trichloroethane 0.500 U
5.00 0.500 ug/L 03/05/21 15:50 11,1,2-Trichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 15:50 1Trichloroethene0.500 U
1.00 0.520 ug/L 03/05/21 15:50 1Trichlorofluoromethane0.520 U
5.00 0.840 ug/L 03/05/21 15:50 11,2,3-Trichloropropane 0.840 U
1.00 0.820 ug/L 03/05/21 15:50 11,2,4-Trimethylbenzene 0.820 U
1.00 0.560 ug/L 03/05/21 15:50 11,3,5-Trimethylbenzene 0.560 U
25.0 2.00 ug/L 03/05/21 15:50 1Vinyl acetate 2.00 U
1.00 0.500 ug/L 03/05/21 15:50 1Vinyl chloride 0.500 U
10.0 1.60 ug/L 03/05/21 15:50 1Xylenes, Total 1.60 U
4-Bromofluorobenzene 97 78-118 03/05/21 15:50 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 98 03/05/21 15:50 181-121
Toluene-d8 (Surr)102 03/05/21 15:50 180-120
Eurofins TestAmerica, Pensacola
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Page 19 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-3Client Sample ID: 689430-003 MW3
Matrix: WaterDate Collected: 02/22/21 11:27
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Acetone 200 U 500 200 ug/L 03/05/21 18:01 20
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
20.0 7.60 ug/L 03/05/21 18:01 20Benzene1730
20.0 10.8 ug/L 03/05/21 18:01 20Bromobenzene10.8 U
20.0 10.4 ug/L 03/05/21 18:01 20Bromochloromethane10.4 U
20.0 10.0 ug/L 03/05/21 18:01 20Bromodichloromethane10.0 U
100 14.2 ug/L 03/05/21 18:01 20Bromoform14.2 U
20.0 19.6 ug/L 03/05/21 18:01 20Bromomethane19.6 U
500 52.0 ug/L 03/05/21 18:01 202-Butanone (MEK)52.0 U
20.0 10.0 ug/L 03/05/21 18:01 20Carbon tetrachloride 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 20Chlorobenzene10.0 U
20.0 15.2 ug/L 03/05/21 18:01 20Chloroethane15.2 U
20.0 12.0 ug/L 03/05/21 18:01 20Chloroform12.0 U
20.0 16.6 ug/L 03/05/21 18:01 20Chloromethane16.6 U
20.0 11.4 ug/L 03/05/21 18:01 202-Chlorotoluene 11.4 U
20.0 11.2 ug/L 03/05/21 18:01 204-Chlorotoluene 11.2 U
20.0 10.0 ug/L 03/05/21 18:01 20cis-1,2-Dichloroethene 10.0 U
100 10.0 ug/L 03/05/21 18:01 20cis-1,3-Dichloropropene 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 20Dibromochloromethane10.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,2-Dibromoethane (EDB)10.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,2-Dichlorobenzene 10.0 U
20.0 10.8 ug/L 03/05/21 18:01 201,3-Dichlorobenzene 10.8 U
20.0 12.8 ug/L 03/05/21 18:01 201,4-Dichlorobenzene 12.8 U
20.0 17.0 ug/L 03/05/21 18:01 20Dichlorodifluoromethane17.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,1-Dichloroethane 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,2-Dichloroethane 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,1-Dichloroethene 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,2-Dichloropropane 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,3-Dichloropropane 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 202,2-Dichloropropane 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 201,1-Dichloropropene 10.0 U
20.0 14.0 ug/L 03/05/21 18:01 20Diisopropyl ether 283
2000 1040 ug/L 03/05/21 18:01 20Ethanol1040U
20.0 10.0 ug/L 03/05/21 18:01 20Ethylbenzene358
500 62.0 ug/L 03/05/21 18:01 202-Hexanone 62.0 U
20.0 10.6 ug/L 03/05/21 18:01 20Isopropylbenzene10.6 J
100 60.0 ug/L 03/05/21 18:01 20Methylene Chloride 60.0 U
500 36.0 ug/L 03/05/21 18:01 204-Methyl-2-pentanone (MIBK)36.0 U
20.0 14.8 ug/L 03/05/21 18:01 20Methyl tert-butyl ether 14.8 U
100 32.0 ug/L 03/05/21 18:01 20m-Xylene & p-Xylene 48.5 J
20.0 20.0 ug/L 03/05/21 18:01 20Naphthalene90.4
20.0 15.2 ug/L 03/05/21 18:01 20n-Butylbenzene 15.2 U
20.0 13.8 ug/L 03/05/21 18:01 20N-Propylbenzene 29.5
100 12.0 ug/L 03/05/21 18:01 20o-Xylene 16.2 J
20.0 14.2 ug/L 03/05/21 18:01 20p-Cymene (p-Isopropyltoluene)14.2 U
20.0 14.0 ug/L 03/05/21 18:01 20sec-Butylbenzene 14.0 U
20.0 20.0 ug/L 03/05/21 18:01 20Styrene20.0 U
20.0 12.6 ug/L 03/05/21 18:01 20tert-Butylbenzene 12.6 U
20.0 10.4 ug/L 03/05/21 18:01 201,1,1,2-Tetrachloroethane 10.4 U
20.0 10.0 ug/L 03/05/21 18:01 201,1,2,2-Tetrachloroethane 10.0 U
Eurofins TestAmerica, Pensacola
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Page 20 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-3Client Sample ID: 689430-003 MW3
Matrix: WaterDate Collected: 02/22/21 11:27
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
Tetrachloroethene 11.6 U 20.0 11.6 ug/L 03/05/21 18:01 20
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
20.0 8.20 ug/L 03/05/21 18:01 20Toluene18.7 J
20.0 10.0 ug/L 03/05/21 18:01 20trans-1,2-Dichloroethene 10.0 U
100 10.0 ug/L 03/05/21 18:01 20trans-1,3-Dichloropropene 10.0 U
20.0 14.0 ug/L 03/05/21 18:01 201,2,3-Trichlorobenzene 14.0 U
20.0 16.4 ug/L 03/05/21 18:01 201,2,4-Trichlorobenzene 16.4 U
20.0 10.0 ug/L 03/05/21 18:01 201,1,1-Trichloroethane 10.0 U
100 10.0 ug/L 03/05/21 18:01 201,1,2-Trichloroethane 10.0 U
20.0 10.0 ug/L 03/05/21 18:01 20Trichloroethene10.0 U
20.0 10.4 ug/L 03/05/21 18:01 20Trichlorofluoromethane10.4 U
100 16.8 ug/L 03/05/21 18:01 201,2,3-Trichloropropane 16.8 U
20.0 16.4 ug/L 03/05/21 18:01 201,2,4-Trimethylbenzene 16.4 U
20.0 11.2 ug/L 03/05/21 18:01 201,3,5-Trimethylbenzene 11.2 U
500 40.0 ug/L 03/05/21 18:01 20Vinyl acetate 40.0 U
20.0 10.0 ug/L 03/05/21 18:01 20Vinyl chloride 10.0 U
200 32.0 ug/L 03/05/21 18:01 20Xylenes, Total 64.7 J
4-Bromofluorobenzene 97 78-118 03/05/21 18:01 20
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 97 03/05/21 18:01 2081-121
Toluene-d8 (Surr)101 03/05/21 18:01 2080-120
Eurofins TestAmerica, Pensacola
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Page 21 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-4Client Sample ID: 689430-004 MW4
Matrix: WaterDate Collected: 02/22/21 11:09
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Acetone 10.0 U 25.0 10.0 ug/L 03/05/21 16:17 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.00 0.380 ug/L 03/05/21 16:17 1Benzene0.380 U
1.00 0.540 ug/L 03/05/21 16:17 1Bromobenzene0.540 U
1.00 0.520 ug/L 03/05/21 16:17 1Bromochloromethane0.520 U
1.00 0.500 ug/L 03/05/21 16:17 1Bromodichloromethane0.500 U
5.00 0.710 ug/L 03/05/21 16:17 1Bromoform0.710 U
1.00 0.980 ug/L 03/05/21 16:17 1Bromomethane0.980 U
25.0 2.60 ug/L 03/05/21 16:17 12-Butanone (MEK)3.84 J
1.00 0.500 ug/L 03/05/21 16:17 1Carbon tetrachloride 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 1Chlorobenzene0.500 U
1.00 0.760 ug/L 03/05/21 16:17 1Chloroethane0.760 U
1.00 0.600 ug/L 03/05/21 16:17 1Chloroform0.600 U
1.00 0.830 ug/L 03/05/21 16:17 1Chloromethane0.830 U
1.00 0.570 ug/L 03/05/21 16:17 12-Chlorotoluene 0.570 U
1.00 0.560 ug/L 03/05/21 16:17 14-Chlorotoluene 0.560 U
1.00 0.500 ug/L 03/05/21 16:17 1cis-1,2-Dichloroethene 0.500 U
5.00 0.500 ug/L 03/05/21 16:17 1cis-1,3-Dichloropropene 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 1Dibromochloromethane0.500 U
1.00 0.500 ug/L 03/05/21 16:17 11,2-Dibromoethane (EDB)0.500 U
1.00 0.500 ug/L 03/05/21 16:17 11,2-Dichlorobenzene 0.500 U
1.00 0.540 ug/L 03/05/21 16:17 11,3-Dichlorobenzene 0.540 U
1.00 0.640 ug/L 03/05/21 16:17 11,4-Dichlorobenzene 0.640 U
1.00 0.850 ug/L 03/05/21 16:17 1Dichlorodifluoromethane0.850 U
1.00 0.500 ug/L 03/05/21 16:17 11,1-Dichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 11,2-Dichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 11,1-Dichloroethene 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 11,2-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 11,3-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 12,2-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 11,1-Dichloropropene 0.500 U
1.00 0.700 ug/L 03/05/21 16:17 1Diisopropyl ether 0.700 U
100 52.0 ug/L 03/05/21 16:17 1Ethanol52.0 U
1.00 0.500 ug/L 03/05/21 16:17 1Ethylbenzene0.500 U
25.0 3.10 ug/L 03/05/21 16:17 12-Hexanone 3.10 U
1.00 0.530 ug/L 03/05/21 16:17 1Isopropylbenzene0.530 U
5.00 3.00 ug/L 03/05/21 16:17 1Methylene Chloride 3.00 U
25.0 1.80 ug/L 03/05/21 16:17 14-Methyl-2-pentanone (MIBK)1.80 U
1.00 0.740 ug/L 03/05/21 16:17 1Methyl tert-butyl ether 180
5.00 1.60 ug/L 03/05/21 16:17 1m-Xylene & p-Xylene 1.60 U
1.00 1.00 ug/L 03/05/21 16:17 1Naphthalene1.00 U
1.00 0.760 ug/L 03/05/21 16:17 1n-Butylbenzene 0.760 U
1.00 0.690 ug/L 03/05/21 16:17 1N-Propylbenzene 0.690 U
5.00 0.600 ug/L 03/05/21 16:17 1o-Xylene 0.600 U
1.00 0.710 ug/L 03/05/21 16:17 1p-Cymene (p-Isopropyltoluene)0.710 U
1.00 0.700 ug/L 03/05/21 16:17 1sec-Butylbenzene 0.700 U
1.00 1.00 ug/L 03/05/21 16:17 1Styrene1.00 U
1.00 0.630 ug/L 03/05/21 16:17 1tert-Butylbenzene 0.630 U
1.00 0.520 ug/L 03/05/21 16:17 11,1,1,2-Tetrachloroethane 0.520 U
1.00 0.500 ug/L 03/05/21 16:17 11,1,2,2-Tetrachloroethane 0.500 U
Eurofins TestAmerica, Pensacola
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Page 22 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-4Client Sample ID: 689430-004 MW4
Matrix: WaterDate Collected: 02/22/21 11:09
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
Tetrachloroethene 0.580 U 1.00 0.580 ug/L 03/05/21 16:17 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.00 0.410 ug/L 03/05/21 16:17 1Toluene0.410 U
1.00 0.500 ug/L 03/05/21 16:17 1trans-1,2-Dichloroethene 0.500 U
5.00 0.500 ug/L 03/05/21 16:17 1trans-1,3-Dichloropropene 0.500 U
1.00 0.700 ug/L 03/05/21 16:17 11,2,3-Trichlorobenzene 0.700 U
1.00 0.820 ug/L 03/05/21 16:17 11,2,4-Trichlorobenzene 0.820 U
1.00 0.500 ug/L 03/05/21 16:17 11,1,1-Trichloroethane 0.500 U
5.00 0.500 ug/L 03/05/21 16:17 11,1,2-Trichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 16:17 1Trichloroethene0.500 U
1.00 0.520 ug/L 03/05/21 16:17 1Trichlorofluoromethane0.520 U
5.00 0.840 ug/L 03/05/21 16:17 11,2,3-Trichloropropane 0.840 U
1.00 0.820 ug/L 03/05/21 16:17 11,2,4-Trimethylbenzene 0.820 U
1.00 0.560 ug/L 03/05/21 16:17 11,3,5-Trimethylbenzene 0.560 U
25.0 2.00 ug/L 03/05/21 16:17 1Vinyl acetate 2.00 U
1.00 0.500 ug/L 03/05/21 16:17 1Vinyl chloride 0.500 U
10.0 1.60 ug/L 03/05/21 16:17 1Xylenes, Total 1.60 U
4-Bromofluorobenzene 95 78-118 03/05/21 16:17 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 100 03/05/21 16:17 181-121
Toluene-d8 (Surr)100 03/05/21 16:17 180-120
Eurofins TestAmerica, Pensacola
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Page 23 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-5Client Sample ID: 689430-005 MW6
Matrix: WaterDate Collected: 02/22/21 10:45
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Acetone 10.0 U 25.0 10.0 ug/L 03/05/21 16:43 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.00 0.380 ug/L 03/05/21 16:43 1Benzene0.380 U
1.00 0.540 ug/L 03/05/21 16:43 1Bromobenzene0.540 U
1.00 0.520 ug/L 03/05/21 16:43 1Bromochloromethane0.520 U
1.00 0.500 ug/L 03/05/21 16:43 1Bromodichloromethane0.500 U
5.00 0.710 ug/L 03/05/21 16:43 1Bromoform0.710 U
1.00 0.980 ug/L 03/05/21 16:43 1Bromomethane0.980 U
25.0 2.60 ug/L 03/05/21 16:43 12-Butanone (MEK)2.60 U
1.00 0.500 ug/L 03/05/21 16:43 1Carbon tetrachloride 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 1Chlorobenzene0.500 U
1.00 0.760 ug/L 03/05/21 16:43 1Chloroethane0.760 U
1.00 0.600 ug/L 03/05/21 16:43 1Chloroform0.600 U
1.00 0.830 ug/L 03/05/21 16:43 1Chloromethane0.830 U
1.00 0.570 ug/L 03/05/21 16:43 12-Chlorotoluene 0.570 U
1.00 0.560 ug/L 03/05/21 16:43 14-Chlorotoluene 0.560 U
1.00 0.500 ug/L 03/05/21 16:43 1cis-1,2-Dichloroethene 0.500 U
5.00 0.500 ug/L 03/05/21 16:43 1cis-1,3-Dichloropropene 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 1Dibromochloromethane0.500 U
1.00 0.500 ug/L 03/05/21 16:43 11,2-Dibromoethane (EDB)0.500 U
1.00 0.500 ug/L 03/05/21 16:43 11,2-Dichlorobenzene 0.500 U
1.00 0.540 ug/L 03/05/21 16:43 11,3-Dichlorobenzene 0.540 U
1.00 0.640 ug/L 03/05/21 16:43 11,4-Dichlorobenzene 0.640 U
1.00 0.850 ug/L 03/05/21 16:43 1Dichlorodifluoromethane0.850 U
1.00 0.500 ug/L 03/05/21 16:43 11,1-Dichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 11,2-Dichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 11,1-Dichloroethene 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 11,2-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 11,3-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 12,2-Dichloropropane 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 11,1-Dichloropropene 0.500 U
1.00 0.700 ug/L 03/05/21 16:43 1Diisopropyl ether 19.1
100 52.0 ug/L 03/05/21 16:43 1Ethanol52.0 U
1.00 0.500 ug/L 03/05/21 16:43 1Ethylbenzene0.500 U
25.0 3.10 ug/L 03/05/21 16:43 12-Hexanone 3.10 U
1.00 0.530 ug/L 03/05/21 16:43 1Isopropylbenzene0.530 U
5.00 3.00 ug/L 03/05/21 16:43 1Methylene Chloride 3.00 U
25.0 1.80 ug/L 03/05/21 16:43 14-Methyl-2-pentanone (MIBK)1.80 U
1.00 0.740 ug/L 03/05/21 16:43 1Methyl tert-butyl ether 58.0
5.00 1.60 ug/L 03/05/21 16:43 1m-Xylene & p-Xylene 1.60 U
1.00 1.00 ug/L 03/05/21 16:43 1Naphthalene1.00 U
1.00 0.760 ug/L 03/05/21 16:43 1n-Butylbenzene 0.760 U
1.00 0.690 ug/L 03/05/21 16:43 1N-Propylbenzene 0.690 U
5.00 0.600 ug/L 03/05/21 16:43 1o-Xylene 0.600 U
1.00 0.710 ug/L 03/05/21 16:43 1p-Cymene (p-Isopropyltoluene)0.710 U
1.00 0.700 ug/L 03/05/21 16:43 1sec-Butylbenzene 0.700 U
1.00 1.00 ug/L 03/05/21 16:43 1Styrene1.00 U
1.00 0.630 ug/L 03/05/21 16:43 1tert-Butylbenzene 0.630 U
1.00 0.520 ug/L 03/05/21 16:43 11,1,1,2-Tetrachloroethane 0.520 U
1.00 0.500 ug/L 03/05/21 16:43 11,1,2,2-Tetrachloroethane 0.500 U
Eurofins TestAmerica, Pensacola
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Page 24 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-5Client Sample ID: 689430-005 MW6
Matrix: WaterDate Collected: 02/22/21 10:45
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
Tetrachloroethene 0.580 U 1.00 0.580 ug/L 03/05/21 16:43 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.00 0.410 ug/L 03/05/21 16:43 1Toluene0.410 U
1.00 0.500 ug/L 03/05/21 16:43 1trans-1,2-Dichloroethene 0.500 U
5.00 0.500 ug/L 03/05/21 16:43 1trans-1,3-Dichloropropene 0.500 U
1.00 0.700 ug/L 03/05/21 16:43 11,2,3-Trichlorobenzene 0.700 U
1.00 0.820 ug/L 03/05/21 16:43 11,2,4-Trichlorobenzene 0.820 U
1.00 0.500 ug/L 03/05/21 16:43 11,1,1-Trichloroethane 0.500 U
5.00 0.500 ug/L 03/05/21 16:43 11,1,2-Trichloroethane 0.500 U
1.00 0.500 ug/L 03/05/21 16:43 1Trichloroethene0.500 U
1.00 0.520 ug/L 03/05/21 16:43 1Trichlorofluoromethane0.520 U
5.00 0.840 ug/L 03/05/21 16:43 11,2,3-Trichloropropane 0.840 U
1.00 0.820 ug/L 03/05/21 16:43 11,2,4-Trimethylbenzene 0.820 U
1.00 0.560 ug/L 03/05/21 16:43 11,3,5-Trimethylbenzene 0.560 U
25.0 2.00 ug/L 03/05/21 16:43 1Vinyl acetate 2.00 U
1.00 0.500 ug/L 03/05/21 16:43 1Vinyl chloride 0.500 U
10.0 1.60 ug/L 03/05/21 16:43 1Xylenes, Total 1.60 U
4-Bromofluorobenzene 96 78-118 03/05/21 16:43 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 99 03/05/21 16:43 181-121
Toluene-d8 (Surr)101 03/05/21 16:43 180-120
Eurofins TestAmerica, Pensacola
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Page 25 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-6Client Sample ID: 689430-006 MW-10
Matrix: WaterDate Collected: 02/22/21 10:30
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds
RL MDL
Acetone 20.0 U 50.0 20.0 ug/L 03/05/21 17:09 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
2.00 0.760 ug/L 03/05/21 17:09 2Benzene177
2.00 1.08 ug/L 03/05/21 17:09 2Bromobenzene1.08 U
2.00 1.04 ug/L 03/05/21 17:09 2Bromochloromethane1.04 U
2.00 1.00 ug/L 03/05/21 17:09 2Bromodichloromethane1.00 U
10.0 1.42 ug/L 03/05/21 17:09 2Bromoform1.42 U
2.00 1.96 ug/L 03/05/21 17:09 2Bromomethane1.96 U
50.0 5.20 ug/L 03/05/21 17:09 22-Butanone (MEK)5.20 U
2.00 1.00 ug/L 03/05/21 17:09 2Carbon tetrachloride 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 2Chlorobenzene1.00 U
2.00 1.52 ug/L 03/05/21 17:09 2Chloroethane1.52 U
2.00 1.20 ug/L 03/05/21 17:09 2Chloroform1.20 U
2.00 1.66 ug/L 03/05/21 17:09 2Chloromethane1.66 U
2.00 1.14 ug/L 03/05/21 17:09 22-Chlorotoluene 1.14 U
2.00 1.12 ug/L 03/05/21 17:09 24-Chlorotoluene 1.12 U
2.00 1.00 ug/L 03/05/21 17:09 2cis-1,2-Dichloroethene 78.1
10.0 1.00 ug/L 03/05/21 17:09 2cis-1,3-Dichloropropene 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 2Dibromochloromethane1.00 U
2.00 1.00 ug/L 03/05/21 17:09 21,2-Dibromoethane (EDB)1.00 U
2.00 1.00 ug/L 03/05/21 17:09 21,2-Dichlorobenzene 1.00 U
2.00 1.08 ug/L 03/05/21 17:09 21,3-Dichlorobenzene 1.08 U
2.00 1.28 ug/L 03/05/21 17:09 21,4-Dichlorobenzene 1.28 U
2.00 1.70 ug/L 03/05/21 17:09 2Dichlorodifluoromethane1.70 U
2.00 1.00 ug/L 03/05/21 17:09 21,1-Dichloroethane 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 21,2-Dichloroethane 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 21,1-Dichloroethene 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 21,2-Dichloropropane 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 21,3-Dichloropropane 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 22,2-Dichloropropane 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 21,1-Dichloropropene 1.00 U
2.00 1.40 ug/L 03/05/21 17:09 2Diisopropyl ether 31.7
200 104 ug/L 03/05/21 17:09 2Ethanol104U
2.00 1.00 ug/L 03/05/21 17:09 2Ethylbenzene235
50.0 6.20 ug/L 03/05/21 17:09 22-Hexanone 6.20 U
2.00 1.06 ug/L 03/05/21 17:09 2Isopropylbenzene25.6
10.0 6.00 ug/L 03/05/21 17:09 2Methylene Chloride 6.00 U
50.0 3.60 ug/L 03/05/21 17:09 24-Methyl-2-pentanone (MIBK)3.60 U
2.00 1.48 ug/L 03/05/21 17:09 2Methyl tert-butyl ether 28.4
10.0 3.20 ug/L 03/05/21 17:09 2m-Xylene & p-Xylene 13.5
2.00 2.00 ug/L 03/05/21 17:09 2Naphthalene27.9
2.00 1.52 ug/L 03/05/21 17:09 2n-Butylbenzene 8.04
2.00 1.38 ug/L 03/05/21 17:09 2N-Propylbenzene 83.4
10.0 1.20 ug/L 03/05/21 17:09 2o-Xylene 1.99 J
2.00 1.42 ug/L 03/05/21 17:09 2p-Cymene (p-Isopropyltoluene)1.42 U
2.00 1.40 ug/L 03/05/21 17:09 2sec-Butylbenzene 3.35
2.00 2.00 ug/L 03/05/21 17:09 2Styrene2.00 U
2.00 1.26 ug/L 03/05/21 17:09 2tert-Butylbenzene 1.26 U
2.00 1.04 ug/L 03/05/21 17:09 21,1,1,2-Tetrachloroethane 1.04 U
2.00 1.00 ug/L 03/05/21 17:09 21,1,2,2-Tetrachloroethane 1.00 U
Eurofins TestAmerica, Pensacola
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Page 26 of 40 Final 1.000
Client Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Lab Sample ID: 400-199981-6Client Sample ID: 689430-006 MW-10
Matrix: WaterDate Collected: 02/22/21 10:30
Date Received: 03/02/21 10:37
Method: SM6200-B - Volatile Organic Compounds (Continued)
RL MDL
Tetrachloroethene 157 2.00 1.16 ug/L 03/05/21 17:09 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
2.00 0.820 ug/L 03/05/21 17:09 2Toluene14.6
2.00 1.00 ug/L 03/05/21 17:09 2trans-1,2-Dichloroethene 1.00 U
10.0 1.00 ug/L 03/05/21 17:09 2trans-1,3-Dichloropropene 1.00 U
2.00 1.40 ug/L 03/05/21 17:09 21,2,3-Trichlorobenzene 1.40 U
2.00 1.64 ug/L 03/05/21 17:09 21,2,4-Trichlorobenzene 1.64 U
2.00 1.00 ug/L 03/05/21 17:09 21,1,1-Trichloroethane 1.00 U
10.0 1.00 ug/L 03/05/21 17:09 21,1,2-Trichloroethane 1.00 U
2.00 1.00 ug/L 03/05/21 17:09 2Trichloroethene116
2.00 1.04 ug/L 03/05/21 17:09 2Trichlorofluoromethane1.04 U
10.0 1.68 ug/L 03/05/21 17:09 21,2,3-Trichloropropane 1.68 U
2.00 1.64 ug/L 03/05/21 17:09 21,2,4-Trimethylbenzene 1.64 U
2.00 1.12 ug/L 03/05/21 17:09 21,3,5-Trimethylbenzene 1.12 U
50.0 4.00 ug/L 03/05/21 17:09 2Vinyl acetate 4.00 U
2.00 1.00 ug/L 03/05/21 17:09 2Vinyl chloride 18.2
20.0 3.20 ug/L 03/05/21 17:09 2Xylenes, Total 15.5 J
4-Bromofluorobenzene 99 78-118 03/05/21 17:09 2
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Dibromofluoromethane 97 03/05/21 17:09 281-121
Toluene-d8 (Surr)103 03/05/21 17:09 280-120
Eurofins TestAmerica, Pensacola
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Page 27 of 40 Final 1.000
Definitions/Glossary
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Qualifiers
GC/MS VOA
Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
Qualifier
U Indicates the analyte was analyzed for but not detected.
Glossary
These commonly used abbreviations may or may not be present in this report.
¤Listed under the "D" column to designate that the result is reported on a dry weight basis
Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins TestAmerica, Pensacola
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Page 28 of 40 Final 1.000
Surrogate Summary
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Method: SM6200-B - Volatile Organic Compounds
Prep Type: Total/NAMatrix: Water
Lab Sample ID Client Sample ID (78-118)(81-121)(80-120)
BFB DBFM TOL
96 97 100400-199981-1
Percent Surrogate Recovery (Acceptance Limits)
689430-001 MW1
97 98 102400-199981-2 689430-002 MW2
97 97 101400-199981-3 689430-003 MW3
95 100 100400-199981-4 689430-004 MW4
96 99 101400-199981-5 689430-005 MW6
99 97 103400-199981-6 689430-006 MW-10
97 100 99LCS 400-522738/1002 Lab Control Sample
96 99 100MB 400-522738/4 Method Blank
Surrogate Legend
BFB = 4-Bromofluorobenzene
DBFM = Dibromofluoromethane
TOL = Toluene-d8 (Surr)
Eurofins TestAmerica, Pensacola
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Page 29 of 40 Final 1.000
QC Association Summary
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
GC/MS VOA
Analysis Batch: 522738
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Water SM6200-B400-199981-1 689430-001 MW1 Total/NA
Water SM6200-B400-199981-2 689430-002 MW2 Total/NA
Water SM6200-B400-199981-3 689430-003 MW3 Total/NA
Water SM6200-B400-199981-4 689430-004 MW4 Total/NA
Water SM6200-B400-199981-5 689430-005 MW6 Total/NA
Water SM6200-B400-199981-6 689430-006 MW-10 Total/NA
Water SM6200-BMB 400-522738/4 Method Blank Total/NA
Water SM6200-BLCS 400-522738/1002 Lab Control Sample Total/NA
Eurofins TestAmerica, Pensacola
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Page 30 of 40 Final 1.000
QC Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Method: SM6200-B - Volatile Organic Compounds
Client Sample ID: Method BlankLab Sample ID: MB 400-522738/4
Matrix: Water Prep Type: Total/NA
Analysis Batch: 522738
RL MDL
Acetone 10.0 U 25.0 10.0 ug/L 03/05/21 07:58 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
0.380 U 0.3801.00 ug/L 03/05/21 07:58 1Benzene
0.540 U 0.5401.00 ug/L 03/05/21 07:58 1Bromobenzene
0.520 U 0.5201.00 ug/L 03/05/21 07:58 1Bromochloromethane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1Bromodichloromethane
0.710 U 0.7105.00 ug/L 03/05/21 07:58 1Bromoform
0.980 U 0.9801.00 ug/L 03/05/21 07:58 1Bromomethane
2.60 U 2.6025.0 ug/L 03/05/21 07:58 12-Butanone (MEK)
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1Carbon tetrachloride
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1Chlorobenzene
0.760 U 0.7601.00 ug/L 03/05/21 07:58 1Chloroethane
0.600 U 0.6001.00 ug/L 03/05/21 07:58 1Chloroform
0.830 U 0.8301.00 ug/L 03/05/21 07:58 1Chloromethane
0.570 U 0.5701.00 ug/L 03/05/21 07:58 12-Chlorotoluene
0.560 U 0.5601.00 ug/L 03/05/21 07:58 14-Chlorotoluene
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1cis-1,2-Dichloroethene
0.500 U 0.5005.00 ug/L 03/05/21 07:58 1cis-1,3-Dichloropropene
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1Dibromochloromethane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,2-Dibromoethane (EDB)
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,2-Dichlorobenzene
0.540 U 0.5401.00 ug/L 03/05/21 07:58 11,3-Dichlorobenzene
0.640 U 0.6401.00 ug/L 03/05/21 07:58 11,4-Dichlorobenzene
0.850 U 0.8501.00 ug/L 03/05/21 07:58 1Dichlorodifluoromethane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,1-Dichloroethane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,2-Dichloroethane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,1-Dichloroethene
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,2-Dichloropropane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,3-Dichloropropane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 12,2-Dichloropropane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,1-Dichloropropene
0.700 U 0.7001.00 ug/L 03/05/21 07:58 1Diisopropyl ether
52.0 U 52.0100 ug/L 03/05/21 07:58 1Ethanol
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1Ethylbenzene
3.10 U 3.1025.0 ug/L 03/05/21 07:58 12-Hexanone
0.530 U 0.5301.00 ug/L 03/05/21 07:58 1Isopropylbenzene
3.00 U 3.005.00 ug/L 03/05/21 07:58 1Methylene Chloride
1.80 U 1.8025.0 ug/L 03/05/21 07:58 14-Methyl-2-pentanone (MIBK)
0.740 U 0.7401.00 ug/L 03/05/21 07:58 1Methyl tert-butyl ether
1.60 U 1.605.00 ug/L 03/05/21 07:58 1m-Xylene & p-Xylene
1.00 U 1.001.00 ug/L 03/05/21 07:58 1Naphthalene
0.760 U 0.7601.00 ug/L 03/05/21 07:58 1n-Butylbenzene
0.690 U 0.6901.00 ug/L 03/05/21 07:58 1N-Propylbenzene
0.600 U 0.6005.00 ug/L 03/05/21 07:58 1o-Xylene
0.710 U 0.7101.00 ug/L 03/05/21 07:58 1p-Cymene (p-Isopropyltoluene)
0.700 U 0.7001.00 ug/L 03/05/21 07:58 1sec-Butylbenzene
1.00 U 1.001.00 ug/L 03/05/21 07:58 1Styrene
0.630 U 0.6301.00 ug/L 03/05/21 07:58 1tert-Butylbenzene
0.520 U 0.5201.00 ug/L 03/05/21 07:58 11,1,1,2-Tetrachloroethane
Eurofins TestAmerica, Pensacola
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Page 31 of 40 Final 1.000
QC Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 400-522738/4
Matrix: Water Prep Type: Total/NA
Analysis Batch: 522738
RL MDL
1,1,2,2-Tetrachloroethane 0.500 U 1.00 0.500 ug/L 03/05/21 07:58 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
0.580 U 0.5801.00 ug/L 03/05/21 07:58 1Tetrachloroethene
0.410 U 0.4101.00 ug/L 03/05/21 07:58 1Toluene
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1trans-1,2-Dichloroethene
0.500 U 0.5005.00 ug/L 03/05/21 07:58 1trans-1,3-Dichloropropene
0.700 U 0.7001.00 ug/L 03/05/21 07:58 11,2,3-Trichlorobenzene
0.820 U 0.8201.00 ug/L 03/05/21 07:58 11,2,4-Trichlorobenzene
0.500 U 0.5001.00 ug/L 03/05/21 07:58 11,1,1-Trichloroethane
0.500 U 0.5005.00 ug/L 03/05/21 07:58 11,1,2-Trichloroethane
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1Trichloroethene
0.520 U 0.5201.00 ug/L 03/05/21 07:58 1Trichlorofluoromethane
0.840 U 0.8405.00 ug/L 03/05/21 07:58 11,2,3-Trichloropropane
0.820 U 0.8201.00 ug/L 03/05/21 07:58 11,2,4-Trimethylbenzene
0.560 U 0.5601.00 ug/L 03/05/21 07:58 11,3,5-Trimethylbenzene
2.00 U 2.0025.0 ug/L 03/05/21 07:58 1Vinyl acetate
0.500 U 0.5001.00 ug/L 03/05/21 07:58 1Vinyl chloride
1.60 U 1.6010.0 ug/L 03/05/21 07:58 1Xylenes, Total
4-Bromofluorobenzene 96 78-118 03/05/21 07:58 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
99 03/05/21 07:58 1Dibromofluoromethane81-121
100 03/05/21 07:58 1Toluene-d8 (Surr)80-120
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-522738/1002
Matrix: Water Prep Type: Total/NA
Analysis Batch: 522738
Acetone 200 233.9 ug/L 117 43 -160
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
Benzene 50.0 54.30 ug/L 109 70 -130
Bromobenzene 50.0 53.08 ug/L 106 70 -132
Bromochloromethane 50.0 56.74 ug/L 113 70 -130
Bromodichloromethane 50.0 55.07 ug/L 110 67 -133
Bromoform 50.0 51.90 ug/L 104 57 -140
Bromomethane 50.0 59.86 ug/L 120 10 -160
2-Butanone (MEK)200 259.6 ug/L 130 61 -145
Carbon tetrachloride 50.0 46.73 ug/L 93 61 -137
Chlorobenzene 50.0 53.52 ug/L 107 70 -130
Chloroethane 50.0 53.77 ug/L 108 55 -141
Chloroform 50.0 53.77 ug/L 108 69 -130
Chloromethane 50.0 51.31 ug/L 103 58 -137
2-Chlorotoluene 50.0 52.96 ug/L 106 70 -130
4-Chlorotoluene 50.0 52.54 ug/L 105 70 -130
cis-1,2-Dichloroethene 50.0 48.18 ug/L 96 68 -130
cis-1,3-Dichloropropene 50.0 50.73 ug/L 101 69 -132
Dibromochloromethane 50.0 55.56 ug/L 111 67 -135
1,2-Dibromoethane (EDB)50.0 54.58 ug/L 109 70 -130
1,2-Dichlorobenzene 50.0 51.82 ug/L 104 67 -130
Eurofins TestAmerica, Pensacola
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Page 32 of 40 Final 1.000
QC Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-522738/1002
Matrix: Water Prep Type: Total/NA
Analysis Batch: 522738
1,3-Dichlorobenzene 50.0 53.64 ug/L 107 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,4-Dichlorobenzene 50.0 53.46 ug/L 107 70 -130
Dichlorodifluoromethane 50.0 52.47 ug/L 105 41 -146
1,1-Dichloroethane 50.0 50.22 ug/L 100 70 -130
1,2-Dichloroethane 50.0 47.52 ug/L 95 69 -130
1,1-Dichloroethene 50.0 50.68 ug/L 101 63 -134
1,2-Dichloropropane 50.0 51.99 ug/L 104 70 -130
1,3-Dichloropropane 50.0 54.91 ug/L 110 70 -130
2,2-Dichloropropane 50.0 36.88 ug/L 74 52 -135
1,1-Dichloropropene 50.0 52.12 ug/L 104 70 -130
Diisopropyl ether 50.0 50.62 ug/L 101 64 -132
Ethanol 2000 2046 ug/L 102 20 -160
Ethylbenzene 50.0 55.05 ug/L 110 70 -130
2-Hexanone 200 211.5 ug/L 106 65 -137
Isopropylbenzene 50.0 53.18 ug/L 106 70 -130
Methylene Chloride 50.0 55.08 ug/L 110 66 -135
4-Methyl-2-pentanone (MIBK)200 216.6 ug/L 108 69 -138
Methyl tert-butyl ether 50.0 49.16 ug/L 98 66 -130
m-Xylene & p-Xylene 50.0 54.31 ug/L 109 70 -130
Naphthalene 50.0 49.89 ug/L 100 47 -149
n-Butylbenzene 50.0 55.76 ug/L 112 67 -130
N-Propylbenzene 50.0 54.85 ug/L 110 70 -130
o-Xylene 50.0 54.69 ug/L 109 70 -130
p-Cymene (p-Isopropyltoluene)50.0 52.22 ug/L 104 65 -130
sec-Butylbenzene 50.0 52.27 ug/L 105 66 -130
Styrene 50.0 55.78 ug/L 112 70 -130
tert-Butylbenzene 50.0 50.34 ug/L 101 64 -139
1,1,1,2-Tetrachloroethane 50.0 51.39 ug/L 103 67 -131
1,1,2,2-Tetrachloroethane 50.0 57.95 ug/L 116 70 -131
Tetrachloroethene 50.0 48.75 ug/L 97 65 -130
Toluene 50.0 53.73 ug/L 107 70 -130
trans-1,2-Dichloroethene 50.0 54.28 ug/L 109 70 -130
trans-1,3-Dichloropropene 50.0 47.25 ug/L 95 63 -130
1,2,3-Trichlorobenzene 50.0 45.61 ug/L 91 60 -138
1,2,4-Trichlorobenzene 50.0 45.29 ug/L 91 60 -140
1,1,1-Trichloroethane 50.0 49.00 ug/L 98 68 -130
1,1,2-Trichloroethane 50.0 57.83 ug/L 116 70 -130
Trichloroethene 50.0 52.73 ug/L 105 70 -130
Trichlorofluoromethane 50.0 55.15 ug/L 110 65 -138
1,2,3-Trichloropropane 50.0 55.04 ug/L 110 70 -130
1,2,4-Trimethylbenzene 50.0 51.28 ug/L 103 70 -130
1,3,5-Trimethylbenzene 50.0 51.99 ug/L 104 69 -130
Vinyl acetate 100 133.3 ug/L 133 26 -160
Vinyl chloride 50.0 53.36 ug/L 107 59 -136
Xylenes, Total 100 109.0 ug/L 109 70 -130
4-Bromofluorobenzene 78 -118
Surrogate
97
LCS LCS
Qualifier Limits%Recovery
Eurofins TestAmerica, Pensacola
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Page 33 of 40 Final 1.000
QC Sample Results
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Method: SM6200-B - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-522738/1002
Matrix: Water Prep Type: Total/NA
Analysis Batch: 522738
Dibromofluoromethane 81 -121
Surrogate
100
LCS LCS
Qualifier Limits%Recovery
99Toluene-d8 (Surr)80 -120
Eurofins TestAmerica, Pensacola
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Page 34 of 40 Final 1.000
Lab Chronicle
Client: Eurofins Xenco Job ID: 400-199981-1
Project/Site: 689430 - SM6200B
Client Sample ID: 689430-001 MW1 Lab Sample ID: 400-199981-1
Matrix: WaterDate Collected: 02/22/21 11:57
Date Received: 03/02/21 10:37
Analysis SM6200-B WPD03/05/21 17:3520 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: 689430-002 MW2 Lab Sample ID: 400-199981-2
Matrix: WaterDate Collected: 02/22/21 11:18
Date Received: 03/02/21 10:37
Analysis SM6200-B WPD03/05/21 15:501 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: 689430-003 MW3 Lab Sample ID: 400-199981-3
Matrix: WaterDate Collected: 02/22/21 11:27
Date Received: 03/02/21 10:37
Analysis SM6200-B WPD03/05/21 18:0120 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: 689430-004 MW4 Lab Sample ID: 400-199981-4
Matrix: WaterDate Collected: 02/22/21 11:09
Date Received: 03/02/21 10:37
Analysis SM6200-B WPD03/05/21 16:171 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: 689430-005 MW6 Lab Sample ID: 400-199981-5
Matrix: WaterDate Collected: 02/22/21 10:45
Date Received: 03/02/21 10:37
Analysis SM6200-B WPD03/05/21 16:431 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: 689430-006 MW-10 Lab Sample ID: 400-199981-6
Matrix: WaterDate Collected: 02/22/21 10:30
Date Received: 03/02/21 10:37
Analysis SM6200-B WPD03/05/21 17:092 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-522738/4
Matrix: WaterDate Collected: N/A
Date Received: N/A
Analysis SM6200-B WPD03/05/21 07:581 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Eurofins TestAmerica, Pensacola
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Page 35 of 40 Final 1.000
Lab Chronicle
Client: Eurofins Xenco Job ID: 400-199981-1
Project/Site: 689430 - SM6200B
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-522738/1002
Matrix: WaterDate Collected: N/A
Date Received: N/A
Analysis SM6200-B WPD03/05/21 07:031 TAL PEN522738
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Laboratory References:
TAL PEN = Eurofins TestAmerica, Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins TestAmerica, Pensacola
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Page 36 of 40 Final 1.000
Method Summary
Job ID: 400-199981-1Client: Eurofins Xenco
Project/Site: 689430 - SM6200B
Method Method Description LaboratoryProtocol
SMSM6200-B Volatile Organic Compounds TAL PEN
SW8465030BPurge and Trap TAL PEN
Protocol References:
SM = "Standard Methods For The Examination Of Water And Wastewater"
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
TAL PEN = Eurofins TestAmerica, Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins TestAmerica, Pensacola
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Page 37 of 40 Final 1.000
Accreditation/Certification Summary
Client: Eurofins Xenco Job ID: 400-199981-1
Project/Site: 689430 - SM6200B
Laboratory: Eurofins TestAmerica, Pensacola
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)314State 12-31-21
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
SM6200-B Water 2-Butanone (MEK)
SM6200-B Water 2-Hexanone
SM6200-B Water 4-Methyl-2-pentanone (MIBK)
SM6200-B Water Acetone
SM6200-B Water Vinyl acetate
Eurofins TestAmerica, Pensacola
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Page 30 of 31 3/10/2021
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Page 39 of 40 Final 1.000
Login Sample Receipt Checklist
Client: Eurofins Xenco Job Number: 400-199981-1
Login Number: 199981
Question Answer Comment
Creator: Conrady, Hank W
List Source: Eurofins TestAmerica, Pensacola
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey
meter.
TrueThe cooler's custody seal, if present, is intact.
N/ASample custody seals, if present, are intact.
TrueThe cooler or samples do not appear to have been compromised or
tampered with.
TrueSamples were received on ice.
TrueCooler Temperature is acceptable.
TrueCooler Temperature is recorded.3.4°C IR-7
TrueCOC is present.
TrueCOC is filled out in ink and legible.
TrueCOC is filled out with all pertinent information.
TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.
TrueSamples are received within Holding Time (excluding tests with immediate
HTs)
TrueSample containers have legible labels.
FalseContainers are not broken or leaking.Refer to Job Narrative for details.
TrueSample collection date/times are provided.
TrueAppropriate sample containers are used.
TrueSample bottles are completely filled.
N/ASample Preservation Verified.
TrueThere is sufficient vol. for all requested analyses, incl. any requested
MS/MSDs
TrueContainers requiring zero headspace have no headspace or bubble is
<6mm (1/4").
TrueMultiphasic samples are not present.
TrueSamples do not require splitting or compositing.
N/AResidual Chlorine Checked.
Eurofins TestAmerica, Pensacola
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Page 40 of 40 Final 1.000