MO-29883_0_C_UST-12_20230411

UNDERGROUND STORAGE TANK CLOSURE REPORT

CHARLOTTE DEPARTMENT OF TRANSPORTATION
STREET MAINTENANCE FACILITY
6001 GENERAL COMMERCE DRIVE
CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA 28215

PREPARED FOR:

CITY OF CHARLOTTE
600 EAST FOURTH STREET
CHARLOTTE, NORTH CAROLINA 28202

PREPARED BY:

WSP USA ENVIRONMENT & INFRASTRUCTURE INC.
2801 YORKMONT ROAD, SUITE 100
CHARLOTTE, NORTH CAROLINA 28208

APRIL 11, 2023

WSP PROJECT: 0910-23-0043
'''I>
'''I>
April 11, 2023
Mr. Daniel Bowser, LG
North Carolina Department of Environmental Quality
Mooresville Regional Office
UST Section
610 East Center Avenue
Mooresville, North Carolina 28115
Subject: Underground Storage Tank Closure Report
Charlotte Department of Transportation Street Maintenance Facility
6001 General Commerce Drive
Charlotte, Mecklenburg County, North carolina 28215
WSP Project: 0910-23-0043
Dear Mr. Bowser:
On behalf of the City of Charlotte (Property Owner), WSP USA Environment & lnfrastn,tcture Inc.
(WSP) is submitting the enclosed Underground Storage Tank Closure Report for the above-
referenced Site.
The report was prepared in general accordance with the North Carolina Department of
Environmental Quality {NCDEQ), UST Section Guidelines for Site Checks, Tank Closure, and
Initial Response and Abatement for UST_ Releases (March l, 2007 version, Change 11, effective
May 17, 2021). This report includes a description of the field activities and the results obtained.
Sincerely,
WSP USA Environment & Infrastructure Inc.
~,1~
Andrew J. Frantz, REM
Environmental Scientist
Enclosure
Cc: Mr. Steven Gucciardi, City of Charlotte
WSP USA Environment & Infrastructure Inc.
2801 Yorkmont Road, Suite 100
Charlotte, North Carolina 28208
Tel: [phone] / Fax: [phone]
Licensure: NC Engineering F-1253 / NC Geology C-247
~~
Michael D. Flanik, LG .
Lead Consultant, Geologist
Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043
iii

TABLE OF CONTENTS

A. SITE INFORMATION .............................................................................................................. 1
1. Site Identification ................................................................................................................................ 1
2. Information about Contacts Associated with the UST System ........................................... 1
3. Information about Release ............................................................................................................. 2
4. Certification .......................................................................................................................................... 2
B. SITE HISTORY AND CHARACTERIZATION .................................................................... 3
1. UST Owner/Operator Information ................................................................................................ 3
2. UST Information .................................................................................................................................. 3
3. Description of the Release .............................................................................................................. 3
4. Description of Site Characteristics .............................................................................................. 4
C. CLOSURE PROCEDURE ....................................................................................................... 5
D. SITE INVESTIGATION .......................................................................................................... 7
E. CONCLUSIONS AND RECOMMENDATIONS ................................................................ 9

FIGURES
Figure 1 Site Topographic Map
Figure 2 Site Location Map
Figure 3 UST Excavation and Closure Sample Locations

TABLES
Table 1 Site History – UST System Owner/Operator and Other Responsible Party
Information
Table 2 Site History – UST System and Release Information
Table 3 UST Closure Soil Sampling Results

APPENDICES
Appendix A Photographs
Appendix B Tank Disposal Certificate and Liquid Disposal Manifest
Appendix C Form UST-2A
Appendix D Soil Boring Field Worksheets
Appendix E UVF Instrument Generated Tables, Laboratory Analytical Reports, and Chain-
of-Custody Forms
Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043
1

A. SITE INFORMATION
1. Site Identification

Date of Report: April 11, 2023
Facility I.D.: 00-0-0000035048 UST Incident Number: Pending Site Risk: Pending
Site Name: Charlotte Department of Transportation Street Maintenance Facility
Street Address: 6001 General Commerce Drive
City: Charlotte Zip Code: 28215 County: Mecklenburg
Description of Geographical Data Point: Center of Excavation
Location Method: Google Earth
Latitude: 35.260700° N Longitude: -80.764495°W
2. Information about Contacts Associated with the UST System

UST Owner: City of Charlotte
Address: 600 East Fourth Street, Charlotte, North Carolina 28202
Telephone: [phone]

UST Operator: City of Charlotte
Address: 600 East Fourth Street, Charlotte, North Carolina 28202
Telephone: [phone]

Property Owner: City of Charlotte
Address: 600 East Fourth Street, Charlotte, North Carolina 28202
Telephone: [phone]

Property Occupant: City of Charlotte
Address: 600 East Fourth Street, Charlotte, North Carolina 28202
Telephone: [phone]

Consultant: WSP USA Environment & Infrastructure, Inc.
Address: 2801 Yorkmont Road, Suite 100, Charlotte, North Carolina 28208
Telephone: [phone]

Analytical Laboratory: Waypoint Analytical, Inc. State Certification No.: 402
Address: 449 Springbrook Road, Charlotte, North Carolina 28217
Telephone: [phone]

Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043

3
B. SITE HISTORY AND CHARACTERIZATION
1. UST Owner/Operator Information
The City of Charlotte is the owner of the Site and the owner/operator of the 10,000-gallon
gasoline UST and 20,000-gallon diesel UST. Ownership and operator information for the
former USTs is provided in Table 1.
2. UST Information
This UST Closure Report is for the removal of a 10,000-gallon gasoline UST and a 20,000-
gallon diesel UST. Reportedly, these USTs were installed in 1990 and the system consists of
the two USTs, associated product lines extending from the tanks, and two fuel dispensers.
A 550-gallon motor oil UST was removed from the Site by others in 2009. Information
regarding the UST details for the Site is provided in Table 2 and discussed below.
3. Description of the Release/Previous Releases
No release was identified during the removal of the 10,000-gallon gasoline and 20,000-gallon
diesel USTs.
In 2009, evidence of a release was observed during the removal of the 550-gallon motor oil
UST at the Site. Petroleum-affected soils were encountered beneath the associated product
line. The NCDEQ assigned the release Incident #36697. Due to gravel backfill located within
the product line trench and other active adjacent product lines, the affected soils were
unable to be excavated. A Phase I LSA was performed by others in response to the
petroleum-affected soils which included the installation of a groundwater monitoring well
for the collection of a groundwater sample. Laboratory analysis of the groundwater sample
did not identify petroleum constituent concentrations above their respective North Carolina
2L Groundwater Quality Standards (NC 2L Standards). Since constituent concentrations
identified in the soil did not exceed the North Carolina Department of Environmental Quality
(NCDEQ) Residential Maximum Soil Contaminant Concentrations (MSCCs) and groundwater
concentrations were below NC 2L Standards, the NCDEQ issued a Notice of No Further
Action (NFA) for Incident #36697 on July 7, 2009.
In 2015, an inspection by NCDEQ identified a leak at the shear valve of the diesel dispenser,
which triggered a notice of violation (NOV) dated June 11, 2015. Subsequently, a limited Site
Check Report was performed by others which documented soil sampling and later
excavation of impacted soil at the dispensers. Approximately 2.18 tons of impacted material
were transported offsite for disposal.
Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043

4
4. Description of Site Characteristics
The Site encompasses approximately 3.4 acres, is in a mixed-use area of Charlotte, North
Carolina, and is identified as Mecklenburg County Tax Parcel 097-221-02. A Topographic Map
is included as Figure 1 and a Site Location Map depicting the location of the former USTs is
shown on Figure 2.
The Site is located within the Charlotte Belt of the Piedmont Physiographic Province
consisting of low rounded hills and long rolling northeast to the southwest trending ridges
with incised creek channels. Based on a review of the North Carolina Geologic Map, the Site is
underlain by metamorphosed mafic rock.
The Site is occupied by the City of Charlotte Department of Transportation Street
Maintenance Facility which is comprised of a 6,054-square foot office building constructed in
1992, two 3,600-square foot warehouse buildings constructed in 1992, a 660-square foot
warehouse building constructed in 2010, and a 4,536-square foot warehouse building
constructed in 2011.
The 7.5-minute Derita, North Carolina, United States Geological Survey (USGS) quadrangle,
published in 2013 was examined. Review of the available topographic data indicates that the
elevation of the Site is approximately 760 feet above mean sea level (msl). The general area of
the Site slopes to the south-southeast towards an unnamed tributary of Briar Creek.
The general direction of groundwater flow can be inferred from ground surface elevations
and surficial expression of groundwater identified on the Derita, North Carolina USGS
topographic quadrangle. Surficial groundwater occurrences generally include permanent
lakes, streams, and wetland areas. Based on WSP’s review of topographic maps and
observations of the Site vicinity, the groundwater flow direction was inferred to the south-
southeast.

WSP reviewed the Mecklenburg County Well Information System 4.0 for water-supply wells
located in the area surrounding the Site. An inactive irrigation well was identified at 5800 Orr
Road approximately 1,340-feet north of the former UST basin.
Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043

5

C. CLOSURE PROCEDURE
The City of Charlotte retained D.H. Griffin Wrecking Company, Inc. (DHG) to remove the
10,000-gallon gasoline and 20,000-gallon diesel USTs; and WSP to perform private
underground utility locating services, observe the removal of two USTs, and collect closure
soil samples. Prior to mobilization, DHG contacted the North Carolina underground utility
location service (NC 811) for public utility location at the Site. In addition, WSP personnel and
our private utility locator, Probe Utility Locating, mobilized to the Site on February 23, 2023, to
perform Ground-Penetrating Radar (GPR) and Electromagnetic (EM) surveys to attempt to
detect metallic objects such as pipes, and underground utility lines buried in the vicinity of
the tanks. The purpose of this effort was to minimize the potential for digging into
underground utilities buried at the Site, determine the orientation and location of two USTs,
and to locate the associated product lines extending from the tanks to the fuel dispensers.

DHG performed UST excavation activities between February 27 and March 2, 2023. Prior to
removal, the tops of the USTs were uncovered by removing the asphalt and pea gravel from
above the tanks. The depth to the top of each UST measured approximately 2 feet. After the
tanks were uncovered, residual liquid was removed from each tank by a vacuum truck and
the tank interiors were washed. Due to the large sized of the diesel UST, the interior of the
tank was washed by a confined space entry by DHG personnel. In addition, residual liquid
was pumped from the product lines extending from the tanks to the fuel dispensers.
Approximately 1,388-gallons of petroleum contact water was pumped from the USTs and
product lines into a vacuum truck for off-Site disposal at DHG’s facility in Greensboro, North
Carolina. Following removal of the liquid from the tanks, pea gravel adjacent to the tank was
removed to free the tank from the excavation. Perched water was observed in the excavation
when removing the adjacent pea gravel, and this water was removed with a pump and
discharged onto the ground surface. This perched water was rainwater that had infiltrated
from the ground surface into the tank pit, as groundwater was encountered at 22.5 feet
below ground surface (bgs) during the previous Phase I LSA performed by others at the Site.

The Mecklenburg County Fire Marshal mobilized to the Site on March 28, 2023 to observe the
two USTs and determine that the oxygen level in each tank was below explosive range using
a lower explosive limit (LEL) meter prior to removal. After receiving the Fire Marshal’s
approval, DHG first removed the 10,000-gallon gasoline UST from the excavation. The UST
was removed from the excavation and then placed onto a truck for off-Site disposal at the A-1
C&D Landfill in Greensboro, North Carolina. Following the removal of the gasoline UST, DHG
removed the 20,000-gallon diesel UST from the excavation. Due to the large size of the diesel
UST, this tank was removed in pieces and placed into a truck for off-Site disposal at the A-1
C&D Landfill. The two USTs appeared to be in good condition, with no holes observed in
either tank. The dimensions of the 10,000-gallon gasoline UST measured approximately 31.5
Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043

6
feet long by 8 feet in diameter. The dimensions of the 20,000-gallon diesel UST are
approximately 37.75 feet long by 10 feet in diameter. Note, the dimensions for the diesel UST
were obtained from the manufacturer’s (Xerxes) website since the tank was removed from
the excavation in pieces. The final dimensions of the UST excavation measured
approximately 37 feet wide by 40 feet long. Following the removal of each UST, an attempt
to collect closure soil samples beneath the center line of each tank was made; however,
because the pea gravel extended beyond the reach of the excavating equipment (greater
than 15 feet deep), the closure samples were not able to be collected at the time of tank
removal. On March 1, 2023, WSP confirmed with Mr. Dan Bowser of the NCDEQ UST Section,
that the closure samples could be collected from soil borings advanced at the former tank
locations after the excavation was backfilled.

After attempting to collect the closure samples, the pea gravel excavated during the removal
of the USTs was placed back into the excavation. Clean imported backfill material was then
placed on top of the pea gravel to complete the backfilling of the excavation and the area
was capped with asphalt to match the surrounding area. During the backfilling activities,
DHG performed compaction activities. Once the depth of the excavation reached a depth
that was safe to enter per Occupational Safety and Health Administration (OSHA) standards
(4 feet bgs), a WSP materials testing technician performed in-place field density tests per
American Society for Testing and Materials (ASTM) standards to determine the percent
compaction achieved by DHG.

Following the completion of the backfilling activities, the product lines were removed from
the ground. The lines for both the diesel and gasoline USTs were located within one trench.
Closure soil samples were collected from beneath the two fuel dispensers and from beneath
the product lines.

Photographs of the UST closure activities are included in Appendix A. The tank disposal
certificate and liquid disposal manifest are included in Appendix B. The Site Investigation
Report for Permanent Closure or Change-in-Service of Registered UST (Form UST-2A) is
included in Appendix C. The former locations of USTs, and the product lines are depicted on
Figure 3.

Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043

7

D. SITE INVESTIGATION
Between February 27 and March 1, 2023, WSP personnel collected closure soil samples from
beneath the two fuel dispensers and the product lines for quantitative analyses using
ultraviolet fluorescence (UVF) spectrometry. The product lines were buried approximately 1-
foot bgs and samples were collected from approximately 1.5-feet into the native soil beneath
the dispensers and product lines. One closure sample was collected from beneath each
dispenser (Disp-D and Disp-G/PL-2) and six product line closure samples (PL-1, PL-3 to PL-7,
and Disp-G/PL-2) were collected at an approximately 10-foot linear interval and at locations of
joints/elbows. Due to close proximity of the product lines around the gasoline dispenser,
sample Disp-G/PL-2 was considered a dispenser and product line closure sample.
The dispenser and product line closure soil samples were collected manually, directly from
the excavator bucket. To minimize the potential for cross-contamination, a new pair of nitrile
gloves were donned for the collection of each sample. UVF analysis was performed by Mr.
Derick Haydin, a certified QED UVF technician with WSP, using a calibrated QED HC-1 UVF
Hydrocarbon Analyzer. The UVF closure soil samples were analyzed on-Site for total
petroleum hydrocarbon (TPH) diesel range organics (DRO) and gasoline range organics
(GRO). UVF analytical results of the dispenser and product line closure soil samples did not
identify TPH-GRO or TPH-DRO concentrations above the State Action Level of 50 milligrams
per kilogram (mg/kg) for TPH-GRO or 100 mg/kg for TPH-DRO.
On March 17, 2023, WSP and our driller licensed in the State of North Carolina, AmeriProbe,
LLC, mobilized to the Site to advance four soil borings at the former location of the 10,000-
gallon gasoline UST and four soil borings at the former location of the 20,000-gallon diesel
UST for the collection of closure soil samples. AmeriProbe, LLC advanced each soil boring to
an approximate depth of 20 feet bgs using a Geoprobe® 7720DT direct-push rig. A
MacroCore® sampler was driven into the soil at each location to remove soil cores from the
subsurface. To minimize the potential for cross-contamination between samples, a new PVC
sleeve (tube) was inserted into the sampler for each soil sample interval. Visual and olfactory
observations relative to the soil cores were recorded by WSP field personnel. The soil types
encountered in each boring was recorded to prepare soil boring field worksheets. Native soil
was encountered beneath the former 10,000-gallon gasoline UST at approximately 16 feet
bgs and beneath the former 20,000-gallon diesel UST at 17 feet bgs. Probe refusal or
groundwater were not encountered in the eight borings advanced at the at the location of
the former USTs. Soil boring field worksheets are included in Appendix D.
Soil samples were collected from the first foot of native sample in each boring, between 16 to
18 feet bgs. The soil samples were placed in laboratory-provided containers, placed in a cooler
on ice, and delivered to Waypoint Analytical, LLC (Waypoint) in Charlotte, North Carolina
under chain-of-custody protocol. The soil samples were analyzed for TPH-DRO and GRO via
Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043

8
EPA Method 8015. In addition, the soil samples were placed on-hold for analysis of volatile
organic compounds (VOCs) via EPA Method 8260, semi-volatile organic compounds (SVOCs)
via EPA Method 8270, and extractable and volatile petroleum hydrocarbons (EPH and VPH)
via the MADEP Method; however, since the results of the TPH analyses did not exceed the
applicable State Action Levels, the samples were not analyzed for the held analyses.
Following the collection of the closure soil samples, the borings were backfilled with
bentonite to the ground surface.
The UST closure soil sampling results are summarized on Table 3. UVF instrument generated
tables and the Waypoint analytical report are included in Appendix E.
Underground Storage Tank Closure Report – CDOT Facility April 11, 2023
6001 General Commerce Drive, Charlotte, North Carolina
WSP Project: 0910-23-0043

9

E. CONCLUSIONS AND RECOMMENDATIONS
WSP has completed contracted activities for the closure of two USTs by removal at the City of
Charlotte Department of Transportation Street Maintenance Facility located at 6001 General
Commerce Drive, Charlotte, North Carolina. The following conclusions and recommendations
are based on WSP’s field observations and data evaluations from the field efforts performed
in February and March 2023.
 One 10,000-gallon gasoline UST and one 20,000-gallon diesel UST were emptied,
removed, and disposed during the February and March 2023 closure activities. The
two USTs were observed to be in good condition with no holes observed in the tanks.
 The product lines associated with the two USTs were removed and disposed during
the February and March 2023 closure activities. The product lines were located within
one trench and observed to be in good condition with no holes.
 The excavation for the USTs was backfilled using the existing pea gravel and clean
imported backfill material. DHG performed compaction of the backfill material and a
WSP materials testing technician performed in-place field density tests per ASTM
standards to determine the percent compaction achieved by DHG.
 Petroleum-impacted soil was not observed during the February and March 2023
closure activities. Sixteen soil samples were collected and UVF or laboratory analyses
did not identify TPH-DRO or GRO concentrations above their respective State Action
Levels.
 Based on the February and March 2023 closure activities, no further action is
recommended. WSP respectfully requests No Further Action be issued for the
removal of the 10,000-gallon gasoline and 20,000-gallon diesel UST.

FIGURES

Note: This map is for
reference only.
Title:Date:
Project No:
Drawn by: L. Starratt
Projection:WSP USA
Environment & Infrastructure Inc.
2801 Yorkmont Road, Suite 100
Charlotte, NC 28208
[phone]
Esri, HERE, Garmin, FAO, NOAA, USGS, EPA, USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and NationalTransportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S. Department of State Humanitarian Information Unit; and NOAA National Centers for Environmental Information, U.S. Coastal Relief Model. Data
File:
Figure:4/7/2023
0910-23-0043 1NC State Plane (NAD83, feet)
D:\CDOT_GeneralCommerce\CDOT.aprx
Site Topographic Map
Charlotte Department of Transportation (CDOT)
Street Maintenance Facility
6001 General Commerce Drive
Charlotte, North Carolina 28215
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Title:Date:
Project No:
Drawn by: L. Starratt
Projection:WSP USA
Environment & Infrastructure Inc.
2801 Yorkmont Road, Suite 100
Charlotte, NC 28208
[phone]
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Figure:4/7/2023
0910-23-0043 2NC State Plane (NAD83, feet)
D:\CDOT_GeneralCommerce\CDOT.aprx
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Site Location Map
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Street Maintenance Facility
6001 General Commerce Drive
Charlotte, North Carolina 28215
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Boundary
Former Location of
USTs
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Note: This map is for
reference only.
Title:Date:
Project No:
Drawn by: L. Starratt
Projection:WSP USA
Environment & Infrastructure Inc.
2801 Yorkmont Road, Suite 100
Charlotte, NC 28208
[phone]
NC CGIA, Maxar, Microsoft, Esri, HERE, Garmin, FAO, NOAA, USGS, EPA 2021
File:
Figure:4/7/2023
0910-23-0043 3NC State Plane (NAD83, feet)
D:\CDOT_GeneralCommerce\CDOT.aprx
UST Excavation and Closure Sample Locations
Charlotte Department of Transportation (CDOT)
Street Maintenance Facility
6001 General Commerce Drive
Charlotte, North Carolina 28215
0 3015Feet
¯Legend
Disp-DPL-1
Disp-G/PL-2
PL-3
PL-4
PL-5
PL-6
PL-7
UST-1-A
UST-1-B
UST-1-C
UST-1-D
UST-2-D UST-2-C
UST-2-B
UST-2-A
Approximate Limits
of Excavation
20,000 Gallon
Diesel UST
Diesel Product Line
Diesel Fuel Dispenser
10,000 Gallon
Gasoline UST
Gasoline Product Line
Gasoline Fuel Dispenser
Closure Sample Location
'''11
sample 10 Oate Collected UST Area
Disp-D 2/2.7/2.'3 Diesel Dispenser
Disp-G/Pl-2 Gasoline Dispenser/Product Lines
3/1/23
3/1/23
3/1/23
PL-6 3/1/23
Pl-7 3/1/23
UST-1-A 3/17/23
3/17/23
UST-1-C 3/17/23
3/17/23
UST-2-A 3/17/23
UST-2-B 3/17/23
UST-2-C 3/17/23
UST-2-D 3/17/23
Sample depths shown in feet below ground surface lbgs)
Concentrations are shown in milligrams per kilogrnm (mg/kg) TPH :Total Petroleum Hydrocarbons
DAO" Diesel Range Organics
GAO" Gasoline Aange O,ganic:s
NA" Not Analyzed
UVI= = Ultra11iolet fluorescence
Product Lines
Product Lines
UST-1 {Gasoline usn
UST-1 (Gasoline UST)
UST-1 (Gasoline usn
UST-1 (Gasoline UST)
usr-2 !Diesel usn
usr-2 !Diesel usn
UST-2 {Diesel usn
UST-2 {Di=I usn
Values shown with "<"' were not detected above the 1eferenced reporting limit
Bold concentrations e;,;cee,d State Action Level
sample-Depth (ffftJ tncld~t Phase
Closure
Closure
Closure
Closure
Closure
Closure
Closure
Closure
16 Closure
Closure
16 Closure
Closure
17 Closure
17 Closure
17 Closure
17 Closure
QED UVI= Soil Ana~is
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037 <0-37
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<0.2 <0.2
<0-22 <0.22
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0.43 <0.43
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
100 50
EPA Method 8015C
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NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA NA
NA <2.70
NA <2.70
NA <2.70
NA <2.70
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TABLES

Table 1: Site History – UST System Owner/Operator and Other Responsible Party Information
Charlotte Department of Transportation Street Maintenance Facility
WSP Project: 0910230043
Incident Number/Name: Pending/Charlotte Department of Transportation Street Maintenance Facility

UST ID Number 1 and 2 Facility ID Number 00-0-0000035048
Name of Property Owner Dates of Ownership
City of Charlotte 1990 to present
Street Address
600 East Fourth Street
City State Zip Telephone Number
Charlotte NC 28202 [phone]
Name of UST Owner/Operator Dates of Operation
City of Charlotte 1992 to 2023
Street Address
600 East Fourth Street
City State Zip Telephone Number
Charlotte NC 28202 [phone]
Incident Number Pending

I I
I I
Table 2: Site History – UST System and Release Information
Charlotte Department of Transportation Street Maintenance Facility
WSP Project: 0910230043
Incident Number/Name: Pending/Charlotte Department of Transportation Street Maintenance Facility

UST ID
Number
Current/Last
Contents
Previous
Contents
Capacity
(gallons)
Construction
Details
Tank
Dimensions
(feet)
Description
of
Associated
Piping and
Pumps
Date
Tank
Installed
Status of
UST
Was
release
associated
with the
UST
system?
NCDEQ
Incident
#
1 Gasoline Gasoline 10,000 Double-Wall
Fiberglass 31.5 x 8
Double-Wall
Fiberglass
piping and
single fuel
dispenser
1992 Removed No Pending
2 Diesel Diesel 20,000 Double-Wall
Fiberglass 37.75 x 10
Double-Wall
Fiberglass
piping and
single fuel
dispenser
1992 Removed No Pending
3 Motor Oil Motor Oil 550 Fiberglass 6.33 x 4.42 Unknown 1992 Removed Yes 36697
Table 3: UST Closure Soil Sample Results
Charlotte Department of Transportation Street Maintenance Facility
WSP Project: 0910230043
Incident Number/Name: Pending/Charlotte Department of Transportation Street Maintenance Facility

Analytical Method  QED UVF Soil Analysis EPA Method 8015C
Contaminant of Concern  TPH DRO TPH GRO TPH DRO TPH GRO Sample ID Date Collected UST Area Sample Depth (feet) Incident Phase
Disp-D 2/27/23 Diesel Dispenser 2 Closure 21.8 13 NA NA
Disp-G/PL-2 2/27/23 Gasoline Dispenser/Product Lines 2 Closure 0.37 <0.37 NA NA
PL-1 2/27/23 Product Lines 2 Closure 2.9 <0.26 NA NA
PL-3 3/1/23 Product Lines 2 Closure <0.35 <0.35 NA NA
PL-4 3/1/23 Product Lines 2 Closure <0.2 <0.2 NA NA
PL-5 3/1/23 Product Lines 2 Closure <0.22 <0.22 NA NA
PL-6 3/1/23 Product Lines 2 Closure 1.0 <0.34 NA NA
PL-7 3/1/23 Product Lines 2 Closure 0.43 <0.43 NA NA
UST-1-A 3/17/23 UST-1 (Gasoline UST) 16 Closure NA NA NA <2.70
UST-1-B 3/17/23 UST-1 (Gasoline UST) 16 Closure NA NA NA <2.70
UST-1-C 3/17/23 UST-1 (Gasoline UST) 16 Closure NA NA NA <2.70
UST-1-D 3/17/23 UST-1 (Gasoline UST) 16 Closure NA NA NA <2.70
UST-2-A 3/17/23 UST-2 (Diesel UST) 17 Closure NA NA <4.65 <2.70
UST-2-B 3/17/23 UST-2 (Diesel UST) 17 Closure NA NA 7.51 J <2.70
UST-2-C 3/17/23 UST-2 (Diesel UST) 17 Closure NA NA 6.34 J <2.70
UST-2-D 3/17/23 UST-2 (Diesel UST) 17 Closure NA NA <4.65 <2.70
State Action Level (mg/kg) 100 50 100 50
Notes:
1. Sample depths shown in feet below ground surface (bgs) Prepared By/Date: AJF 3/27/2023
2. Concentrations are shown in milligrams per kilogram (mg/kg) Checked By/Date: DRH 4/4/2023
3. TPH = Total Petroleum Hydrocarbons
4. DRO = Diesel Range Organics
5. GRO = Gasoline Range Organics
6. NA = Not Analyzed
7. UVF = Ultraviolet fluorescence
8. Values shown with "<" were not detected above the referenced reporting limit
9. Bold concentrations exceed State Action Level
10. J = Detected but below the Reporting Limit (lowest calibration standard); therefore, result is estimated

APPENDIX A

PHOTOGRAPHS

CDOT Street Maintenance Facility
Underground Storage Tank Closure Report
Photographs Taken February and March 2023

Photograph 1:
Location of former
diesel dispenser.

Photograph 2:
View of USTs being
uncovered.
CDOT Street Maintenance Facility
Underground Storage Tank Closure Report
Photographs Taken February and March 2023

Photograph 3:
View of gasoline UST
during removal.

Photograph 4:
View of product line
trench.
CDOT Street Maintenance Facility
Underground Storage Tank Closure Report
Photographs Taken February and March 2023

Photograph 5:
Backfilling product
line trench and
excavation.

APPENDIX B

TANK DISPOSAL CERTIFICATE AND LIQUID DISPOSAL MANIFEST

APPENDIX C

FORM UST-2A

UST-2A Site Investigation Report for Permanent Closure or Change-in-
Service of
REGISTERED UST
Return completed form to:
NC DEQ / DWM / UST SECTION
1646 MAIL SERVICE CENTER
RALEIGH, NC 27699-1646
ATTN: REGISTRATION & PERMITTING
phone [phone] fax [phone] http://www.wastenotnc.org/
STATE USE ONLY:Facility ID #
Date Received
INSTRUCTIONS (READ THIS FIRST)
1. UST permanent closure or change in service must be completed in accordance with the latest version of the Guidelines for Site Checks, Tank
Closure and Initial Response and Abatement. The guidelines can be obtained at http://deq.nc.gov/about/divisions/waste-management/waste-
management-permit-guidance/underground-storage-tanks-section.
2. Permanent closure: Complete all sections of this form.
3. Change-in-service: Where a UST system will be converted from storing a regulated substance to a non-regulated substance, complete sections I, II, III, IV, and VI
4. For more than 5 registered UST systems, attach additional forms as needed
5. Tank Fee Refund: An annual tank fee may be refunded for a tank for which a tank fee was not required. An owner or operator must submit
a written request and include: (1) contact information, (2) federal identification # or SSN, and (3) a copy of UST-2 form. The annual tank
fee will be prorated based on the date of permanent closure.
6. UNREGISTERED USTs use Form UST-2B
I. OWNERSHIP OF TANKS II. LOCATION OF TANKS
Owner Name (Corporation, Individual, Public Agency, or Other Entity) Facility Name or Company
Street Address Facility ID # (If known)
City County Street Address
State Zip Code City County Zip Code
Phone Number Phone Number
III. CONTACT PERSONNEL
Contact for Facility: Job Title: Phone #:
Closure Contractor Name: Closure Contractor Company:Address:Phone #
Primary Consultant Name: Primary Consultant Company:Address:Phone #
IV. UST INFORMATION FOR REGISTERED UST SYSTEMS
UNREGISTERED USTs use Form UST-2B
V. EXCAVATION CONDITION
Tank ID
No.
Size in
Gallons
Last
Contents
Last
Use
Date
Permanent
Close Date
Method of Permanent Closure:
Indicate REMOVED or enter fill
material, such as foam/
concrete/ sand
Change-in-
Service
Date
Water in excavation Free product
Notable
odor or
visible soil
contaminatio
n
Yes No Yes No Yes No
VI. CERTIFICATION
I certify under penalty of law that I have personally examined and am familiar with the information submitted in this and all attached documents and that
based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the submitted information is true accurate and complete.
Signature Date Signed
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY, DIVISION OF WASTE MANAGEMENT, UST SECTION
1646 MAIL SERVICE CENTER, RALEIGH, NC 27699-1646 PHONE [phone] FAX [phone] http://www.wastenotnc.org/ 1/2016
NC
~
~·
City of Charlotte Street Maintenance Facility
600 East Fourth Street 00-0-0000035048
Charlotte Mecklenburg 6001 General Commerce Drive
NC 28204 Charlotte Mecklenburg 28213
704-651-4366 704-651-4366
Doug Pierotti Environmental Manage 704-651-4366
Daniel Pleasants DH Griffin Environmental Services 11205 Reames Road 704-430-7199
Matthew Miller WSP 2801 Yorkmont Rd 704-492-9836
1 10000 Gasoline 2/21/23 2/28/23 REMOVED [!] □ □ [!] □ [!]
2 20000 Diesel 2/21/23 2/28/23 REMOVED [!] □ □ [!] □ [!]
□ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □
□ □ □ □ □ □
Print name and official title of owner or owner's authorized representative
Doug Pierotti, City of Charlotte Environmental Services Manager
3ture
D&Ufr /J~ttz,·#1--0~ &~ ~m 3/6/2023
NORTH CAROLINAl.fJEPARTMEfi;r OF'ENVIRONMENTAL QU.A --------- - ---------------- - ---

APPENDIX D

SOIL BORING FIELD WORKSHEETS

BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-16 PID
16-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP
SVOCs by 8270E PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-1-A
910230045 PROJECT NAME CDOT General Commerce
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
DEPTH
(ft bgs)
52
29.91
Cloudy
No well installed
OF1
Andrew Frantz
2
PID
(ppm)LAB SAMPLE INFOSOIL DESCRIPTION
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
Backfill
at 09:25
UST-1-A collected at 16 ft bgs
Boring terminated at 20 feet bgs
Light brown clayey silt with white mottling
Gravel
BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-16 PID
16-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP
SVOCs by 8270E PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-1-B 1 OF
910230045 PROJECT NAME CDOT General Commerce
LAB SAMPLE INFO
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
52
29.91
Cloudy
2
DEPTH
(ft bgs)
PID
(ppm)SOIL DESCRIPTION
Backfill
Gravel
Light brown clayey silt with white mottling UST-1-B collected at 16 ft bgs
at 09:35
Boring terminated at 20 feet bgs
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
No well installed
Andrew Frantz
BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-16 PID
16-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP
SVOCs by 8270E PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-1-C 1 OF
910230045 PROJECT NAME CDOT General Commerce
LAB SAMPLE INFO
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
52
29.91
Cloudy
2
DEPTH
(ft bgs)
PID
(ppm)SOIL DESCRIPTION
Backfill
Gravel
Light brown clayey silt with white mottling UST-1-C collected at 16 ft bgs
at 09:45
Boring terminated at 20 feet bgs
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
No well installed
Andrew Frantz
BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-16 PID
16-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP
SVOCs by 8270E PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-1-D 1 OF
910230045 PROJECT NAME CDOT General Commerce
LAB SAMPLE INFO
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
52
29.91
Cloudy
2
DEPTH
(ft bgs)
PID
(ppm)SOIL DESCRIPTION
Backfill
Gravel
Light brown clayey silt with white mottling UST-1-D collected at 16 ft bgs
at 10:15
Boring terminated at 20 feet bgs
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
No well installed
Andrew Frantz
BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-17 PID
17-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP x
SVOCs by 8270E x PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C x GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-2-A 1 OF
910230045 PROJECT NAME CDOT General Commerce
LAB SAMPLE INFO
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
52
29.91
Cloudy
2
DEPTH
(ft bgs)
PID
(ppm)SOIL DESCRIPTION
Backfill
Gravel
Light brown clayey silt with white and black mottling UST-2-A collected at 17 ft bgs
at 10:30
Boring terminated at 20 feet bgs
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
No well installed
Andrew Frantz
BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-17 PID
17-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP x
SVOCs by 8270E x PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C x GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-2-B 1 OF
910230045 PROJECT NAME CDOT General Commerce
LAB SAMPLE INFO
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
52
29.91
Cloudy
2
DEPTH
(ft bgs)
PID
(ppm)SOIL DESCRIPTION
Backfill
Gravel
Light brown clayey silt with white and black mottling UST-2-B collected at 17 ft bgs
at 10:35
Boring terminated at 20 feet bgs
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
No well installed
Andrew Frantz
BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-17 PID
17-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP x
SVOCs by 8270E x PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C x GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-2-C 1 OF
910230045 PROJECT NAME CDOT General Commerce
LAB SAMPLE INFO
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
52
29.91
Cloudy
2
DEPTH
(ft bgs)
PID
(ppm)SOIL DESCRIPTION
Backfill
Gravel
Light brown clayey silt with white and mottling UST-2-C collected at 17 ft bgs
at 10:45
Boring terminated at 20 feet bgs
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
No well installed
Andrew Frantz
BORING #PAGE 1
PROJECT #
DATE STARTED DATE COMPLETED
DRILLING SUB-CONTRACTOR DRILL RIG
OUTDOOR TEMPERATURE (°F)OUTDOOR RELATIVE HUMIDITY (%)69
OUTDOOR PRESSURE (in Hg)WIND SPEED (mph) and DIRECTION 10, SW
ATMOSPHERIC OBSERVATIONS TOTAL BORING DEPTH (ft bgs)20
BOREHOLE DIAMETER (in)DEPTH TO WATER (ft bgs)Not encountered
0-7 No
7-17 PID
17-20 Readings
Collected
VOCs by 8260D x CrVI by 7199 EPH by MADEP x
SVOCs by 8270E x PAHs by 8270E VPH by MADEP x
Metals by 6020 PCBs by 8082 PFAS
Mercury by 7470A DRO by 8015C x GRO by 8015C x
TOTAL WELL DEPTH (ft bgs)SCREENED INTERVAL (ft bgs)
SAND PACK (ft bgs)BENTONITE SEAL (ft bgs)
WELL CASING DIAMETER (in)TYPE OF MONITORING WELL
LOGGED BY SIGNATURE
SOIL BORING FIELD WORKSHEET
UST-2-D 1 OF
910230045 PROJECT NAME CDOT General Commerce
LAB SAMPLE INFO
3/17/2023 3/17/2023
AmeriProbe Geoprobe 7720DT
52
29.91
Cloudy
2
DEPTH
(ft bgs)
PID
(ppm)SOIL DESCRIPTION
Backfill
Gravel
Light brown clayey silt with white and mottling UST-2-D collected at 17 ft bgs
at 10:55
Boring terminated at 20 feet bgs
ANALYTICAL PARAMETERS COLLECTED
WELL CONSTRUCTION DETAIL
No well installed
Andrew Frantz

APPENDIX E

UVF INSTRUMENT GENERATED TABLES, LABORATORY ANALYTICAL REPORTS, AND
CHAIN-OF-CUSTODY FORMS
Hydrocarbon Analysis Results
Client:WSP Samples taken Monday, February 27, 2023
Address:2801 Yorkmont Road Samples extracted Monday, February 27, 2023
Charlotte, NC 28208 Samples analysed Monday, February 27, 2023
Contact:Matt Miller Operator DRH
Project:CDOT
1 F03640
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid
%
heavy
s PL-1 10.4 <0.26 <0.26 2.9 2.9 0.96 <0.08 <0.01 0 73.1 26.9 V.Deg.Diesel 83.9%,(FCM)
Initial Calibrator QC check OK Final FCM QC Check OK 85.4 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon FingerprintsProject:
PL-1-D: V.Deg.Diesel 83.9%,{FCM)
QED
2495
Hydrocarbon Analysis Results
Client:WSP Samples taken Monday, February 27, 2023
Address:2801 Yorkmont Road Samples extracted Monday, February 27, 2023
Samples analysed Monday, February 27, 2023
Contact:Matt Miller Operator DRH
Project:CDOT
2 F03640
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid
%
heavy
s Disp-D 22.2 <0.56 13 21.8 34.8 10.7 0.4 <0.022 91.1 6.9 2.1 Deg.Fuel 71.8%,(FCM),(BO)
s Disp-G/PL-2 14.6 <0.37 <0.37 0.37 0.37 0.27 <0.12 <0.015 0 73.1 26.9 ,(FCM)
Initial Calibrator QC check OK Final FCM QC Check OK 95 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon FingerprintsProject:
Disp-D: Deg.Fuel 71.8%,(FCM),(BO) Disp-G : ,(FCM)
QED QED
10585
10689
Hydrocarbon Analysis Results
Client:WSP Samples taken Wednesday, March 1, 2023
Address:2801 Yorkmont Road Samples extracted Wednesday, March 1, 2023
Charlotte, NC 28208 Samples analysed Wednesday, March 1, 2023
Contact:Matt Miller Operator DRH
Project:CDOT
4 F03640
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid
%
heavy
s PL-3 14.0 <0.35 <0.35 <0.35 <0.35 <0.07 <0.11 <0.014 0 0 0 ,(FCM),(BO)
s PL-4 8.0 <0.2 <0.2 <0.2 <0.2 <0.04 <0.06 <0.008 0 0 0 ,(FCM),(BO)
s PL-5 8.7 <0.22 <0.22 <0.22 <0.22 <0.04 <0.07 <0.009 0 0 0 ,(FCM),(BO)
s PL-6 13.7 <0.34 <0.34 1 1 0.68 <0.11 <0.014 0 88 12 Deg Fuel 53.3%,(FCM)
Initial Calibrator QC check OK Final FCM QC Check OK 93.7 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon Fingerprints
Project:
PL-3: ,(FCM),(BO) PL-4: ,(FCM),(BO)
QED QED
700 700
I -
PL-5: ,(FCM),(BO) PL-6: Deg Fuel 53.3%,(FCM)
QED QED
700
4801
n f1 I
Hydrocarbon Analysis Results
Client:WSP Samples taken Wednesday, March 1, 2023
Address:2801 Yorkmont Road Samples extracted Wednesday, March 1, 2023
Charlotte, NC 28208 Samples analysed Wednesday, March 1, 2023
Contact:Matt Miller Operator DRH
Project:CDOT
1 F03640
Matrix Sample ID Dilution
used
BTEX
(C6 - C9)
GRO
(C5 - C10)
DRO
(C10 - C35)
TPH
(C5 - C35)
Total
Aromatics
(C10-C35)
16 EPA
PAHs BaP HC Fingerprint Match
% light % mid
%
heavy
s PL-7 17.3 <0.43 <0.43 0.43 0.43 0.36 <0.14 <0.017 0 90.6 9.4 Deg Fuel 68.1%,(FCM)
Initial Calibrator QC check OK Final FCM QC Check OK 101.4 %
Results generated by a QED HC-1 analyser. Concentration values in mg/kg for soil samples and mg/L for water samples. Soil values are not corrected for moisture or stone content
Fingerprints provide a tentative hydrocarbon identification. The abbreviations are:- FCM = Results calculated using Fundamental Calibration Mode : % = confidence for sample fingerprint match to library
(SBS) or (LBS) = Site Specific or Library Background Subtraction applied to result : (PFM) = Poor Fingerprint Match : (T) = Turbid : (P) = Particulate present
Ratios
QED Hydrocarbon Fingerprints
Project:

Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the
analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.

3/26/2023
WSP USA Envi. & Infrastructure Inc.(Charlotte) Andrew Frantz
2801 Yorkmont Rd. #100 Charlotte, NC, 28208
Ref: Analytical Testing
Lab Report Number: 23-076-0033 Client Project Description: CDOT General Commerce
Dear Andrew Frantz:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/17/2023 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Danyale Love Project Manager
Page 1 of 26
Waypoint.9
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202337735State ProgramNorth Carolina
12/31/2023402State ProgramNorth Carolina
07/31/202399012State ProgramSouth Carolina
12/31/202299012State ProgramSouth Carolina
Page 1 of 1 00016/23-076-0033
Page 2 of 26
e Waypoint~,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Report Number:
Sample Summary Table
Client Project Description:
23-076-0033
CDOT General Commerce
Lab No Client Sample ID Matrix Date Collected Date Received
03/17/2023 09:25Solids 91582 UST-1-A 03/17/2023 14:58
03/17/2023 09:35Solids 91583 UST-1-B 03/17/2023 14:58
03/17/2023 09:45Solids 91584 UST-1-C 03/17/2023 14:58
03/17/2023 10:15Solids 91585 UST-1-D 03/17/2023 14:58
03/17/2023 10:30Solids 91586 UST-2-A 03/17/2023 14:58
03/17/2023 10:35Solids 91587 UST-2-B 03/17/2023 14:58
03/17/2023 10:45Solids 91588 UST-2-C 03/17/2023 14:58
03/17/2023 10:55Solids 91589 UST-2-D 03/17/2023 14:58
Page 3 of 26
0 Waypoint~,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-076-0033
Report Limit
Project:CDOT General Commerce
V 91582UST-1-A
19.9 03/23/2023 20:00SW-DRYWT Moisture %
V 91583UST-1-B
20.3 03/23/2023 20:00SW-DRYWT Moisture %
V 91584UST-1-C
21.5 03/23/2023 20:00SW-DRYWT Moisture %
V 91585UST-1-D
19.4 03/23/2023 20:00SW-DRYWT Moisture %
V 91586UST-2-A
23.2 03/23/2023 20:00SW-DRYWT Moisture %
V 91587UST-2-B
J7.51 03/22/2023 13:178015C DRO Diesel Range Organics (C10-C28)mg/Kg 4.65
20.7 03/23/2023 20:00SW-DRYWT Moisture %
V 91588UST-2-C
J6.34 03/22/2023 13:388015C DRO Diesel Range Organics (C10-C28)mg/Kg 4.65
21.8 03/23/2023 20:00SW-DRYWT Moisture %
V 91589UST-2-D
23.6 03/23/2023 20:00SW-DRYWT Moisture %
Page 4 of 26
0 Waypoint~,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com

Client: WSP USA Envi. & Infrastructure Inc.(Charlotte) CASE NARRATIVE
Project: CDOT General Commerce Lab Report Number: 23-076-0033
Date: 3/25/2023
Total Petroleum Hydrocarbons - Extractable Method 8015C DRO Sample 91245 (CS-1) QC Batch No: V31086/V31037
Sample requires dilution due to high levels of target and/or non-target analytes.
Sample 91245 (CS-1) QC Batch No: V31086/V31037
Diluted MS/MSD same as parent sample due to matrix of sample. Total Petroleum Hydrocarbons - Volatile Method 8015C GRO Sample 91583 (UST-1-B)
Analyte: a,a,a-Trifluorotoluene QC Batch No: V31021/V31019
Surrogate(s) exhibited a high bias in this project sample where no target analytes were detected. The high recovery(s) had no impact on the data. Batch QC samples (method blank and laboratory control samples) all
showed surrogates within QC limits.
Sample 91588 (UST-2-C) Analyte: a,a,a-Trifluorotoluene
QC Batch No: V31021/V31019 Surrogate(s) exhibited a high bias in this project sample where no target analytes were detected. The high recovery(s) had no impact on the data. Batch QC samples (method blank and laboratory control samples) all showed surrogates within QC limits.

Page 5 of 26
Waypoint.0
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-A
91582 Matrix:
3/17/2023 9:25
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
19.9 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 6 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-A
91582 Matrix:
3/17/2023 9:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 17:01 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 131 Limits: 50-137%03/20/23 17:0150 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 7 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-B
91583 Matrix:
3/17/2023 9:35
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
20.3 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 8 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-B
91583 Matrix:
3/17/2023 9:35
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 17:30 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 145 *Limits: 50-137%03/20/23 17:3050 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 9 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-C
91584 Matrix:
3/17/2023 9:45
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
21.5 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 10 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-C
91584 Matrix:
3/17/2023 9:45
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 17:59 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 132 Limits: 50-137%03/20/23 17:5950 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 11 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-D
91585 Matrix:
3/17/2023 10:15
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
19.4 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 12 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-1-D
91585 Matrix:
3/17/2023 10:15
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 18:27 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 129 Limits: 50-137%03/20/23 18:2750 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 13 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-A
91586 Matrix:
3/17/2023 10:30
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
23.2 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 14 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-A
91586 Matrix:
3/17/2023 10:30
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8015C DRO Prep Batch(es):V31037 03/21/23 10:55
<4.65 mg/Kg 4.65 10.0Diesel Range Organics (C10-C28)1 03/22/23 12:56 V31086AMP
8015C DROSurrogate: OTP Surrogate 78.9 Limits: 31-123%03/22/23 12:561 AMP
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 18:55 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 137 Limits: 50-137%03/20/23 18:5550 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 15 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-B
91587 Matrix:
3/17/2023 10:35
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
20.7 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 16 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-B
91587 Matrix:
3/17/2023 10:35
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8015C DRO Prep Batch(es):V31037 03/21/23 10:55
7.51 J mg/Kg 4.65 10.0Diesel Range Organics (C10-C28)1 03/22/23 13:17 V31086AMP
8015C DROSurrogate: OTP Surrogate 77.4 Limits: 31-123%03/22/23 13:171 AMP
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 19:24 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 133 Limits: 50-137%03/20/23 19:2450 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 17 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-C
91588 Matrix:
3/17/2023 10:45
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
21.8 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 18 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-C
91588 Matrix:
3/17/2023 10:45
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8015C DRO Prep Batch(es):V31037 03/21/23 10:55
6.34 J mg/Kg 4.65 10.0Diesel Range Organics (C10-C28)1 03/22/23 13:38 V31086AMP
8015C DROSurrogate: OTP Surrogate 78.2 Limits: 31-123%03/22/23 13:381 AMP
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 19:54 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 148 *Limits: 50-137%03/20/23 19:5450 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 19 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-D
91589 Matrix:
3/17/2023 10:55
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
23.6 %Moisture 1 03/23/23 20:00 SW-DRYWTAMB
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 20 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-076-0033
01223
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Andrew Frantz
Charlotte
Received : 03/17/2023
CDOT General Commerce
Report Date : 03/26/2023
Sample ID :
Lab No :
Sampled:UST-2-D
91589 Matrix:
3/17/2023 10:55
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8015C DRO Prep Batch(es):V31037 03/21/23 10:55
<4.65 mg/Kg 4.65 10.0Diesel Range Organics (C10-C28)1 03/22/23 13:59 V31086AMP
8015C DROSurrogate: OTP Surrogate 85.0 Limits: 31-123%03/22/23 13:591 AMP
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 MED
8015C GRO Prep Batch(es):V31019 03/20/23 08:00
<2.07 mg/Kg 2.07 5.00Gasoline Range Organics (C6-C10)50 03/20/23 20:22 V31021TBL
8015C GROSurrogate: a,a,a-Trifluorotoluene 120 Limits: 50-137%03/20/23 20:2250 TBL
Qualifiers/
Definitions
Dilution FactorDFOutside QC Limit*
Method Quantitation LimitMQLEstimated valueJ
Page 21 of 26
e Waypoint.,
ANALYTICAL
449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
Quality Control Data
23-076-0033Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
CDOT General Commerce
QC Prep Batch Method:
Total Petroleum Hydrocarbons - Extractable
8015C DRO
V31086QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3546
QC Prep:V31037
Associated Lab Samples: 91586, 91587, 91588, 91589
LRB-V31037 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/22/23 09:4610.04.65<4.65mg/KgDiesel Range Organics (C10-C28)
03/22/23 09:46OTP Surrogate (S)84.9 31-123
LCS-V31037Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11778.166.7mg/KgDiesel Range Organics (C10-C28)46-126
57.4OTP Surrogate (S)31-123
V 91245-MS-V31037 V 91245-MSD-V31037Matrix Spike & Matrix Spike Duplicate
MS Result
Parameter
Max
RPD
MS
%Rec
MSD
Result
MSD
Spike
Conc.
MS Spike
Conc.ResultUnits
%Rec
Limits
MSD
%Rec RPD
12100 0.0*1040066.866.815800mg/KgDiesel Range Organics (C10-C28)0.0*50-117 15.1 24
65.0OTP Surrogate (S)62.5 31-123
Page 1 of 3* QC Fail Date:03/26/2023 10:51 AM
Page 22 of 26
Waypoint ..
ANALYTICAL
e 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypoi ntana lytica I .com
Quality Control Data
23-076-0033Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
CDOT General Commerce
QC Prep Batch Method:
Total Petroleum Hydrocarbons - Volatile
8015C GRO
V31021QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5035 MED
QC Prep:V31019
Associated Lab Samples: 91582, 91583, 91584, 91585, 91586, 91587, 91588, 91589
LRB-V31019 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
03/20/23 16:325.002.07<2.07mg/KgGasoline Range Organics (C6-C10)
03/20/23 16:32a,a,a-Trifluorotoluene (S)95.2 50-137
LCS-V31019 LCSD-V31019Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
52.9 10610753.550.0mg/KgGasoline Range Organics (C6-C10)41-138 1.1 20
90.0101a,a,a-Trifluorotoluene (S)50-137
Page 2 of 3Date:03/26/2023 10:51 AM
Page 23 of 26
Waypoint ..
ANALYTICAL
e 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypoi ntana lytica I .com
Quality Control Data
23-076-0033Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
CDOT General Commerce
Dry Weight Determination
SW-DRYWT
V31123QC Analytical Batch:
Analysis Method:
Analysis Description:
V 91498-DUPDuplicate
Max RPD
Parameter
AnalyzedRPDDUP
Result
Result
Units
20.0 03/23/23 20:001.322.723.0%Moisture
V 91930-DUPDuplicate
Max RPD
Parameter
AnalyzedRPDDUP
Result
Result
Units
20.0 03/23/23 20:001.434.433.9%Moisture
Page 3 of 3Date:03/26/2023 10:51 AM
Page 24 of 26
Waypoint ..
ANALYTICAL
e 449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypoi ntana lytica I .com
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:23-076-0033
WSP USA Envi. & Infrastructure Inc.(Charlotte)
01223
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT15 3.8C
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)?Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
ü
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)ü
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Angelo Norvell Date & Time:03/17/2023 17:59:56
Special precautions or instructions included?
Comments:
Page 25 of 26
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ANALYTICAL
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449 Springbrook Rd, Charlotte, NC 28217
Main 704.529.6364
www.waypointanalytical.com
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Page 26 of 26 Waypoint_G ANALYTICAL 449 Springbrook Road• Charlotte, NC 28217 Phone [phone] • Fax: [phone] Client Company Nome, l,v ~/\-Report To/Contact Name: 8 =z_. Reporting Address: o2 i, 0 l ia:J QAcvt.r:rlt.. t.~~. a 'it~ Phone: r<!lt-1'.jj '~WFax ·(Yes)(No): Email Address: Awl,;.,. 6:-;~ e \Al~ e. (_~ \A-, EDD Type: PDF __ Excel __ Other _______ _ Site Location Name: C.Oo'J ~"t",-.,.A ~ ~'"'e..... Site Location Physical Address: C½P::!:~, 4 '-CHAIN OF CUSTODY RECORD PAGE _j_ OF L QUOTE# TO ENSURE PROPER BIUING: ______ ---1 Project Name: C\:)C.,, (;.ej/LC2rc,..{ Co.V\I\.~~ Short Hold Analysis (Yes) (No) UST Project: (Yes) (No) *Please ATTACH any project specific reporting (QC LEVEL I 11111 IV) provisions and/or QC Requirements Invoice To: ---------------------1 Address: ___________________ ---i Purchase Order No./Bllling Reference __________ _ Requested Due Dale U 1 Day O 2 Days .J 3 Days □ 4 Days O 5 Days "Working Days" ':J 6-9 Days □ Standard 10 days a Rush Work Must Be Pre Approved Samples received after 15:00 will be processed next business day. Turnaround time is based on business days, excluding weekends and holidays. (SEE REVERSE FOR TERMS & CONDITIONS REGARDING SERVICES RENDERED BY WAYPOINT ANALYTICAL, LLC TO CLIENT) YES NO N/A Samples INTACT upon arrival? Received IN ICE? ~ x::::> PROPER PRESERVATIVES indicated? Received WITHIN HOLDING TIMES? ~ CUSTODY SEALS INTACT? __ __ 25;.. VOLATILES rec'd W/OUT HEADSPACE? __ __ ~ tSused? &_ TEMP: Therm I~ ).JJJ: Observed ::5 .'zS. ~c ,~;:z]t: TO BE FILLED IN BY CLIENT/SAMPLING PERSONNEL Certification: Nc_k SC __ Other __ N/A. __ _ Water Chlorinated: YES_ NO __ Samples Iced Upon Collection: YES. .NO CLIENT SAMPLE DESCRIPTION DATE COLLECTE.D TIME COLLECTED MILITARY HOURS MATRIX (SOIL, WATER.OR SLUDGE) SAMPLE CONTAINER PRESERVA-TIVES 0 ANALYSIS REQUESTED /_p "TYPE SEE BELOW REMARKS IDNO. NO. SIZE 1u.s·1"-\ -;\ 1-,1-.11 q ;J-§" .>o 1' \ IACb r> q \A~-\ -\3 q5 UST--c__. Q'1; u.q·-\ -µ Jo/~ ~?T-_~-A -8 -C-US, -0 I I I f I • I : I I I I I I :■Ad=ffi❖#UUh@Mi ·'41¼1 Sampler's Signature Sampled By (Print Name) Affiliation w~f> U-SA--Upon relinquishing, this Chain of Custody is your authorization for Waypolnt Analytical to proceed with the analyses as requested above. Any changes must be submitted In writing lo the Waypoinl Al)Plytical Project Manager. There will be charges for any changes after analyses have been Initialized. Relinquished By: (Signature) _ 7 A _3..-....., / I Received By: (Slgnature) I Date I Military/Hours I Additional Comments. Relinquished By: (Signature) Date Relinquliihed By· (Signature) Method of Sliipme,,t NOTE: ALL SAMPLE COOLERS SHOULD BE TAPED SHUT~ CUSTODY SEALS FOR TRANSPORD.TION TO THE LABORATOR'I'. SAMPLES ARE NOT ACCEPTED AND VERIFIED AGAINST COC UNTIL RECEIVED AT THE LABORATORY. 0 Fed Ex O UPS J Hand-delivered O Waypoint Analytical Field SeNlca O Othet-NPDES: I UST: I GROUNDWATER, DRINKING WATER: I SOLID WASTE: I RCRA: I BRWNFLD I LANDFILL I OTHER: iJ NC U SC O NC D SC D NC CJ SC D NC □ SC D NC O SC D NC O SC O NC 8 SC D NC O SC CJ NC O SC □---o___ □---□------□-----□---a___ □----o __ _ ·coNTAINER TYPE CODES: A= Amber C = Clear G= Glass P = Plastic; TL= Teflon-Lined Cap VOA= Volatile Organics Analysis (Zero Head Space) \,lo\ cl Cod'i, [? 8a10 \/~Vr e't'* IJ~ ~~:i;.; NoO---= -'cs -,:: -.. -a 1 .~ -iis -1~ =~:::-E 8 -;;;u iiiiiiiiii . .,; ---~ i -<{~ -~ ... -Cl.g --en s: u -Site Departure Time: Field Tech Fee: 1-------; MIieage: SEE REVERSE FOR TERMS & CONDITIONS ORIGINAL