MO-29823_48925_CA_LSA_20230726

LIMITED SITE ASSESSMENT REPORT

TODDVILLE GARAGE
610 TODDVILLE ROAD
CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA 28214

PREPARED FOR:

Duke Energy Carolinas, LLC

PREPARED BY:

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

July 25, 2023

WSP PROJECT: 7818-23-0114
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114
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A. SITE INFORMATION
1. Site Identification

Date of Report: July 24, 2023
Facility I.D.: Not Applicable UST Incident Number: 48925 Site Risk: Pending
Site Name: Toddville Garage
Street Address: 610 Toddville Road
City: Charlotte Zip Code: 28214 County: Mecklenburg
Description of Geographical Data Point: Location of Potential Discharge
Location Method: Google Earth
Latitude: 35.27735" N Longitude: -80.91998" W
2. Information about Contacts Associated with the UST System

UST Owner: Duke Energy Carolinas, LLC
Address: 525 South Tryon Street, Charlotte, North Carolina 28202
Telephone: [phone]

UST Operator: Duke Energy Carolinas, LLC – Toddville Garage (TV01A)
Address: P.O. Box 1244, Charlotte, North Carolina 28201
Telephone: [phone]

Property Owner: Duke Energy Carolinas, LLC
Address: 525 South Tryon Street, Charlotte, North Carolina 28202
Telephone: [phone]

Property Occupant: Duke Energy Carolinas, LLC
Address: 525 South Tryon 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 State Certification No.: 37735 & 402
Address: 449 Springbrook Road, Charlotte, North Carolina 28217
Telephone: [phone]
3. Information about Release

Date Discovered: March 7, 2023
Estimated Quantity of Release: Unknown
Cause of Release: Unknown
Source of Release: Underground piping
Sizes and Contents of Tanks or Other Containment from which Release Occurred: Used motor oil
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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B. EXECUTIVE SUMMARY
The Toddville Garage (the Garage) is on a portion of a 115-acre site, Mecklenburg County Tax Parcel 057-15-109,
(Site) and is located in a mixed-use area of Charlotte, North Carolina. The Site is occupied by various buildings,
including the Garage, and staging areas of various materials and equipment. On March 7, 2023, what appeared to
be used motor oil was observed leaking from the ground into an oil-change pit within the Garage. Duke submitted
the 24- Hour Notification of Discharge Form UST-62 to Mooresville District office of the North Carolina Department
of Environmental Quality (NCDEQ), Underground Storage Tank (UST) Section on March 7, 2023.

Initial abatement response activities conducted in March 2023 included an inspection of the existing oil disposal
system which consists of below ground piping from the Garage to a 1,000 gallon UST for used oil containment and
inspection of the former (no longer in use) underground oil water separator (OWS) located to the east of the
Garage, between the in-use used oil UST (used oil UST) and the Garage. The OWS was found to contain used oil
and water. On March 9, 2023, some used oil and water was vacuumed from the OWS, and the service drains
located inside the Garage were inspected for continuity to the used oil UST. One drain, that was believed to lead to
the used oil UST, did not have observable continuity to the used oil UST and was closed off with a plug and covered
with a floor plate.

On May 22 and 23, 2023, WSP USA Environment & Infrastructure Inc. (WSP) conducted preliminary investigation
activities to evaluate the source of used oil in the subsurface. WSP contracted with HAZMAT Environmental
Services (HAZMAT) to perform vacuum extraction and cleaning of the OWS and Glenn Industrial to conduct a
camera survey of the OWS. On May 22, 2023, approximately 370 gallons of used oil and water were removed from
the OWS. On May 23, 2023, the OWS was visually inspected via remote operated vehicle outfitted with a camera.
Three separate cells were observed as was the piping into the OWS and the piping from cell to cell within the OWS.
Continuity amongst various site drains and pipes and the OWS or the used oil UST was also evaluated on May 23,
2023. Continuity from an exterior pipe cleanout was confirmed to cell one of the OWS. Continuity was not
confirmed to either the OWS, the exterior pipe cleanout, or the used oil UST from the covered and plugged interior
floor drain.

It is presumed that the floor drain, from which continuity could not be confirmed, the exterior pipe cleanout, and
the OWS were historically connected. However, based on field observations, discussions with site personnel, and
review of limited construction drawings, it is suspected that the buried pipe between the floor drain and the pipe
cleanout and OWS became disconnected (or deteriorated) below the ground surface. It is presumed that this floor
drain remained in service after the buried pipe became damaged and the buried pipe, which is damaged, is the
source of the used oil in the subsurface.

On June 19 and 20, 2023 WSP conducted monitoring well installation activities to evaluate the subsurface
downgradient of the interior floor drain. Partially Weathered Rock (PWR) was observed directly underlying the
gravel fill and therefore no soil samples were collected. Following installation of MW-1, approximately 0.01 feet of
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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light non-aqueous phase petroleum (LNAPL) was observed on top of the water table on two separate dates, June
28 and July 10, 2023.

Laboratory analysis of the groundwater sample collected from MW-1 on June 28, 2023 indicates that 1-
methylnaphthalene and naphthalene concentrations exceed their respective NC 2L Standard.

On July 10, 2023 WSP installed a product recovery sock in MW-1.

Based on the Site observations, results of the LSA, and current Notice of Residual Petroleum (NORP) and perpetual
land use restrictions, covering the entire parcel, which prohibits the use of the groundwater as a water supply, that
is filed with the Mecklenburg County Register of Deeds Book 32843, Page 860, WSP recommends the NCDEQ
consider No Further Action for this Site.

Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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TABLE OF CONTENTS

A. SITE INFORMATION .................................................................................................................... i
1. Site Identification ..................................................................................................................................... i
2. Information about Contacts Associated with the UST System .................................................................... i
3. Information about Release ....................................................................................................................... i
4. Certification ............................................................................................................................................ ii
B. EXECUTIVE SUMMARY .............................................................................................................. 3
C. SITE HISTORY AND CHARACTERIZATION .................................................................................... 7
1. Owner/Operator Information .................................................................................................................. 7
2. Description of the Release ....................................................................................................................... 7
3. Description of Site Characteristics ............................................................................................................ 7
D. RISK CHARACTERIZIATION ......................................................................................................... 8
E. RECEPTOR INFORMATION ....................................................................................................... 11
1. Water Supply Wells ............................................................................................................................... 11
2. Public Water Supplies ............................................................................................................................ 11
3. Surface Water ....................................................................................................................................... 11
4. Wellhead Protection Areas .................................................................................................................... 11
5. Deep Aquifers in the Coastal Plain Region .............................................................................................. 12
6. Subsurface Structures ............................................................................................................................ 12
F. LAND USE ................................................................................................................................ 13
1. Area Land Use ....................................................................................................................................... 13
2. Property Owners and Occupants ........................................................................................................... 13
G. GEOLOGY AND HYDROGEOLOGY ............................................................................................. 14
1. Topographic Conditions ......................................................................................................................... 14
2. Regional Geology .................................................................................................................................. 14
3. Site Geology and Hydrogeology ............................................................................................................. 14
H. INITIAL RESPONSE AND ABATEMENT ACTION .......................................................................... 15
1. Oil Waste Removal and Cleaning ........................................................................................................... 15
I. ASSESSMENT INVESTIGATION METHODS AND RESULTS .......................................................... 17
J. FREE PRODUCT RECOVERY ...................................................................................................... 19
K. CONCLUSIONS AND RECOMMENDATIONS............................................................................... 20

Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114
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TABLE OF CONTENTS (continued)
FIGURES
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
TABLE
Table 1
Table 2
Table 3
Table 4
APPENDICES
Appendix A
Appendix B
Appendix C Appendix D
Site USGS Topographic Map
Subject Site Features
Land Use and Receptor Map
Oil Water Separator Plan View
Oil Water Separator Profile View
Site History – System Owner/Operator and Other Responsible Party Information
Water Supply Well and Receptor Information
Summary of Well Construction Details
Summary of Groundwater Analytical Detections
Boring Logs and Well Construction Record
Photographs of Investigation Activities
Monitoring Well Sampling Record Laboratory Analytical Report and Chain of Custody
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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C. SITE HISTORY AND CHARACTERIZATION
1. Owner/Operator Information
Ownership and operator information is provided in Table 1. At the time of this report, and the presumed time of
the discharge, Duke Energy Carolinas, LLC (Duke Energy) was the Site owner.
2. Description of the Release

On March 7, 2023, Duke Energy observed, what appeared to be used oil leaking from the ground in an oil-change
pit within the Toddville Garage (the Garage).
3. Description of Site Characteristics
The Garage is on a portion of a 115-acre site, Mecklenburg County Tax Parcel 057-15-109, and is located in a
mixed-use area of Charlotte, North Carolina. The Site is occupied by various buildings, including the Garage, gravel
parking lots and staging areas for various materials and equipment. A Topographic Map is included as Figure 1 and
a Site features map depicting the site overview is shown on Figure 2.

The oil-change pit, where the oil was observed seeping along the wall at the base, is a subsurface pit located in the
northern portion of the Garage. Approximately 40 feet to the southeast of the oil-change pit and exteriorly
adjacent to the Garage is a subsurface OWS that is in place, but no longer in use (retired). The date of retirement is
unknown. Immediately to the east of the OWS is the in-use used oil UST. Used oil generated during servicing of
fleet vehicles at the Garage is currently discharged through buried piping connected to the 1,000-gallon used oil
UST.

Groundwater monitoring wells were previously installed at the Site between 1991 and 2017 to assess petroleum
groundwater impacts related to a petroleum release incident (#24555). The general direction of groundwater flow
can be inferred from groundwater monitoring well data obtained from those previously installed monitoring wells
located 150 to 700 feet to the west and southwest of the Garage. Based on the review of this data the
groundwater flow direction appears to be generally to the south/southwest. A NORP with land use restrictions was
executed on June 25, 2018 for the entire parcel the Toddville Garage is located on. The NORP is in association with
incident #24555 and the groundwater monitoring wells have been abandoned.

Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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D. RISK CHARACTERIZIATION
The following sections are reproduced from the Limited Site Assessment Report format (Appendix A), pages A-58
and A-59 of the NCDEQ Comprehensive Guidelines Appendices.
LIMITED SITE ASSESSMENT RISK CLASSIFICATION AND LAND USE FORM
Part I – Groundwater/Surface Water/Vapor Impacts
High Risk
1. Has the discharge or release contaminated any water supply well including
any used for non-drinking purposes?
No.
2. Is a water supply well used for drinking water located within 1,000 feet of
the Source Area of the discharge or release?
No. The locations of known water supply wells identified during the survey are shown on
Figure 3.
3. Is water supply well used for any purpose (e.g., irrigation, washing cars,
industrial cooling water, filing swimming pools) located within 250 feet of
the Source Area of the release or discharge?
No.
4. Does the groundwater within 500 feet of the Source Area of the discharge
or release have the potential for future use in that there is no other source
of water supply other than the groundwater?
No.
5. Do vapors from the discharge or release pose a threat of explosion because
of accumulation of the vapors in a confined space or pose any other serious
threat to public health, public safety, or the environment.
No.
6. Are there any other factors that would cause the discharge or release to
pose an imminent danger to public health, public safety, or the
environment?
No.

Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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Intermediate Risk
1. (a) Is a surface water body located within 500 feet of the Source Area of the
discharge-release?
No.

(b) If yes, does the maximum groundwater contaminant concentration
exceed the surface water quality standards and criteria found in 15A NCAC
2B.0200 by a factor of 10?

Not Applicable.

2. Is the source area of the discharge or release located within a designated
wellhead protection area as defined in 42 USC 300h (e)?
No.
3. Is the release located in the Coastal Plain Physiographic region as designated on a map entitled “Geology of North Carolina” published by the
Department in 1985?
No.
4. Do the levels of groundwater contamination for any contaminant exceed
the gross contamination levels (GCL) established by the Department.
No.

Part II – Land Use
Property Containing Source Area of Release
1. Does the property contain one or more primary or secondary residences
(permanent or temporary)?
No.
2. Does the property contain a school, daycare center, hospital, playground,
park, recreation area, church, nursing home, or other place of public
assembly?
No.
3. Does the property contain a commercial (e.g., retail, warehouse,
office/business space, etc..) or industrial (e.g., manufacturing, utilities,
industrial research and development, chemical/petroleum bulk storage,
etc..) enterprise, an inactive commercial or industrial enterprise, or is the
land undeveloped?
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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Yes. The Parcel is presently used for industrial purposes (utility).
4. Do children visit the property?
No.
5. (a) Do pavement, buildings or other structures cap the contaminated soil?
Most likely yes; however, soil data was unable to be collected due to shallow weathered rock.
A concrete pad is located above the OWS and extends around the Garage. This entire parcel is
secured with a chain-link fence to prevent unauthorized access.

(b) If yes, what mechanisms are in place or can be put into place to ensure
that the contaminated soil will remain capped in the foreseeable future?

Not Applicable.
6. What is the zoning status of the property?
Manufacturing & logistics (ML-2).
7. Is the use of the property likely to change in the next 20 years?
No.

Property Surrounding Source Area of Release
The questions below pertain to the area within 1,500 feet of the Source Area of the release.
1. What is the distance from the Source Area of the release to the nearest
primary or secondary residence?
Nearest residence is located approximately 1,050 feet from the Source Area.
2. What is the distance from the Source Area of the release to the nearest
school. Day care center, hospital, playground, park, recreation area, church,
nursing home, or other place of public assembly?
Approximately 980 feet from southern property boundary of Assurance United Methodist
Church and its associated playground and garden (Figure 3).
3. What is the zoning status of the properties in the surrounding area?
The properties within the surrounding area are zoned as neighborhood 1, industrial, and
manufacturing & logistics.
4. Briefly characterize the use and activities of the land in the surrounding
area.
Mostly single family residential properties border the Parcel to the north and east, except for a
machine shop and truck terminal to the east and an oil fueling service to the north (Figure 3).
Undeveloped land and Fred D Alexander Boulevard are to the west of the Parcel. To the south
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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of the parcel is a rail line, across from which is a rail yard, shipping distribution center and an
additional utility service building.

E. RECEPTOR INFORMATION
Potential receptors considered as part of the LSA include identification of water-supply wells, public water
supplies, surface waters, wellhead protection areas, subsurface structures, land use, and property owners and
occupants. The following sections provide our results of the receptor investigation as summarized on Table 2.
1. Water Supply Wells
WSP personnel conducted a potable well search by performing a driving reconnaissance of streets and properties
within 1,500-feet of the Garage. A walkthrough of the surrounding public right-of-way within 500-feet of the
source area was not performed since the 500-foot radius falls within the Site parcel boundary. WSP identified one
well house located at 6518 Craig Street, approximately 1,460-feet northeast of the Garage. No other evidence of
potable wells was identified by WSP during the well search.

WSP reviewed the Mecklenburg County Well Information System 4.0 for water-supply wells located within 1,500-
foot radius of the Garage. Inactive drinking water wells were identified at 300 and 310 Glenhaven Drive (northeast
of the Garage) and at 6620 Craig Street (northeast of the Garage) and an active drinking water well was identified
at 6518 Craig Street. As described above, evidence of the inactive wells was not observed during our well search
on July 12, 2023. WSP confirmed the presence of a well at 6518 Craig Street by observing a well house located at
the property.
2. Public Water Supplies
WSP observed water-meter vaults along the roads during our potable well search. While there is no restriction on
use of water wells in the county, public water is available to the residences and businesses within 1,500-feet of the
Garage. Figure 3 is a well survey map showing the area included in the survey. As noted above, four water-supply
wells were identified within 1,500-feet of the Garage.

3. Surface Water
Two unnamed tributaries to Paw Creek are located approximately 800 feet to the south and 950 feet to the west
along with unnamed waterbody located approximately 1,150 feet to the northwest of the Garage. The unnamed
waterbody and tributaries are shown on Figure 3.
4. Wellhead Protection Areas
The Garage and Site parcel are not located in a wellhead protection area.
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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5. Deep Aquifers in the Coastal Plain Region
The Garage is not located in the Atlantic Coastal Plain Physiographic Province of North Carolina.
6. Subsurface Structures
A building is located approximately 500 feet downgradient of the Garage on the Site that has a walk out basement
structure that is partially in the subsurface. There are also several oil-change pits present at the Garage.
Underground utilities in the area include natural gas, water lines, sanitary sewer, storm drains, water lines, and
communication lines.

Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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F. LAND USE
1. Area Land Use
The land use classification of the Parcel is industrial. No residences are located on the Site parcel. The area within a
1,500-foot radius of the release area consists of mostly residential and industrial properties. Mostly single-family
residential properties border the Site to the north and east, except for a machine shop and truck terminal to the
east and an oil fueling service to the north. Undeveloped land and Fred D Alexander Boulevard are to the west of
the Site parcel. To the south of the parcel is a rail line, across from which is a rail yard, shipping distribution center
and an additional utility service building.
2. Property Owners and Occupants
Duke Energy is the sole owner of the Garage and the Site parcel.
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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G. GEOLOGY AND HYDROGEOLOGY
The following sections describe the regional and Site-specific geologic conditions and the methods employed to
obtain physical data that support our discussion of the environmental conditions.
1. Topographic Conditions
WSP examined the 7.5-minute Mountain Island Lake, North Carolina, United States Geological Survey (USGS)
quadrangle, published in 2019. Review of the available topographic data indicates that the Site ranges from
approximately 740 to 810 feet above mean sea level (msl), with the elevation at the location of the UST at about
780 feet msl. The topography of the subject property is generally sloping toward the south-southwest and west
towards an unnamed tributary to Paw Creek.
2. Regional Geology
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.
3. Site Geology and Hydrogeology
Based on a review of the North Carolina Geologic Map, the Site is underlain mostly by massive well foliated
quartzite rock while the southeastern corner of the Site is underlain by metamorphosed quartz diorite.
The United States Department of Agriculture (USDA) - Natural Resources Conservation Service (NRCS) Web Soil
Survey and Soil Survey of Mecklenburg County indicates the soils beneath the Site are mapped mostly as Urban
Land (Ur) with some minor Monacan loam (MO) and lesser amounts of the Cecil sandy clay loam (CeB2, CeD2), and
Helena sandy loam (EnD) mostly around the perimeter of the Site. Urban land is classified as impervious layers
over human transported material while the Monacan loam (mapped near the tributary) is a floodplain deposit that
is comprised of loamy alluvium derived from igneous and metamorphic rock and is somewhat poorly draining.

Subsurface geology encountered during Site investigation is summarized on boring logs provided in Appendix A.
Soft digging (air knife and vacuum extraction) was performed at three locations (Figure 2), one of which was
advanced using a Geoprobe® 3230DT and a monitoring well was installed (MW-1). Beneath a layer of reinforced
concrete was fill consisting of gravel (similar to 57 stone) followed by PWR identified as diorite, granodiorite, and
granite. Relict joints and fractures were visible in the PWR following soft dig activities (see photographs of
investigation activities, Appendix B). Cuttings from the PWR were mostly gravel composed of the weathered
bedrock. Soft dig refusal was encountered at 2.5 to 2.9 feet below ground surface (bgs) and hollow stem auger
refusal was encountered at approximately 19 feet bgs.

Based on the groundwater monitoring wells previously installed at the Site between 1991 and 2017 the general
direction of groundwater flow is to the south/southwest.
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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H. INITIAL RESPONSE AND ABATEMENT ACTION
Initial abatement response activities conducted in March 2023 included an inspection of the existing oil disposal
system which consists of below ground piping from the Garage to a 1,000 gallon UST for used oil containment and
inspection of the retired underground OWS located to the east of the Garage, between the in-use used oil UST and
the Garage. The OWS was found to contain used oil and water. On March 9, 2023, some used oil and water was
vacuumed from the OWS, and the service drains located inside the Garage were inspected for continuity to the
used oil UST. One floor drain located along the eastern wall of the Garage (Figure 2), that was believed to connect
to the used oil UST, did not have observable continuity to the used oil UST and was closed off with a plug and
covered with a floor plate.

On May 22 and 23, 2023, WSP mobilized to the Site to conduct preliminary investigation activities to evaluate the
source of the used oil in the subsurface. WSP contracted with HAZMAT to perform vacuum extraction and cleaning
of the OWS and Glenn Industrial to conduct camera survey of the OWS.
1. Oil Waste Removal and Cleaning

On May 22, 2023, HAZMAT and WSP personnel mobilized to the Site to observe the OWS, to remove the used oil
and water, and to clean the interior of the OWS. The manhole covers were removed from each of the OWS entry
points and used oil and water was observed in each of the three OWS cells. Starting with the northern cell and
progressing south, the used oil and water mixture was extracted with a vacuum truck. Each cell was then power
washed, and the wash water was extracted via vacuum truck. Approximately 370 gallons of used oil and water (i.e.,
petroleum contact water) were removed from the OWS, including the power washing water.
The used oil and petroleum contact water was subsequently transported to HAZMAT’s disposal facility located at
210 Dalton Avenue in Charlotte North Carolina, 28206.
2. OWS Observations and Continuity Investigation
On May 23, 2023, the OWS was visually inspected via remote operated vehicle outfitted with a camera. As shown
on Figure 4 and Figure 5, the OWS consists of three cells that are approximately 70 to 92 inches below ground, and
each is accessed by a 44-inch-wide manhole structure. The first, or northern, cell is approximately cube-shaped
and is about 48 inches by 48 inches and 51 inches tall. A baffle was observed in the middle of the northern cell that
is approximately 30 inches tall and cuts the cell into a northern and southern half. Two pipes were observed
penetrating through the northern wall of the northern cell. The first is an inlet pipe located in the upper northwest
corner that was not plugged, and the second is a pipe observed entering through the middle of the wall that was
plugged. Continuity between the first pipe and a pipe clean out was confirmed. The second pipe is presumed to be
an oil skimmer pipe constructed with two upturned inlets on either side of the baffle (see Figure 4 and Figure 5).
Both inlets were found to be capped. The second cell, or middle cell, is also approximately 48 inches by 48 inches
and is approximately 34 inches tall. An outlet pipe was observed at the base of the second cell leading to the third
or southern cell. The southern cell consists of a 44-inch-wide manhole structure that terminated approximately 92
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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inches below grade and an 18-inch diameter and 29-inch deep sump was located at the base. A vent pipe was
observed at the top of the western wall of the southern cell. A non-functional pump was observed in the sump.
Continuity amongst various drains and cleanouts at the Garage and the OWS or the used oil UST was evaluated. An
exterior pipe clean out was observed to the north of the OWS, the cleanout cover was removed and approximately
10 gallons of water was sprayed into the cleanout. The water was observed discharging into the northern cell of
the OWS through the inlet pipe located in the upper northwest corner (the northern cell inlet pipe that was not
plugged). To further evaluate continuity, the floor plate and plug was removed from the floor drain located along
the eastern wall of the Garage. Approximately 25 gallons of water was sprayed into the interior floor drain.
Continuity between it and an adjacent exterior pipe clean out, the OWS, or used oil UST could not be confirmed as
the water was not observed at any of these structures. After the continuity was tested, the pipe clean out cover
and the floor drain plug and floor plate were put back in place.

Appendix B includes a photo log of Site features observed during the investigation activities.

Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

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I. ASSESSMENT INVESTIGATION METHODS AND RESULTS
Prior to commencing sampling activities, WSP contacted the North Carolina underground utility location service
(One-Call) as well as subcontracting with Taylor Wiseman & Taylor (TWT) to mark buried objects such as pipes,
tanks or underground utility lines. The purpose of this effort was to minimize the potential for impacting
underground utilities, or lines buried at the Garage.
1. Monitoring Well Installation
On June 19, 2023, WSP’s soft dig subcontractor, TWT mobilized to the Garage to advance a boring using soft dig
technologies (air knife and vacuum extraction) prior to well installation. Upon encountering the PWR directly
below the gravel fill as described above (Section G. 3), an additional two holes were advanced to confirm the
shallow bedrock (Figure 2).
The following day, June 20, 2023, WSP’s drilling subcontractor, Geologic Exploration, Inc (GEX) advanced a
monitoring well (MW-1) in the assumed hydraulically downgradient direction of the location of the interior floor
drain. Due to the nature of the PWR material encountered, soil samples were not collected for laboratory analysis.
WSP personnel prepared a boring log (Appendix A) based on field observations of the cuttings and visual
inspection of the soft dig holes. GEX used hollow-stem augers to advance the borehole through the PWR to a
refusal depth of 19 feet bgs. Monitoring well MW-1 was then installed at 18.5 feet bgs, due to 0.5 feet of collapse,
with 15 feet of screen to bracket the presumed groundwater surface. The monitoring well consisted of a two-inch
inside diameter (ID), Schedule 40 polyvinyl chloride (PVC) well casing. The bottom 15-foot section of the well
consisted of a manufactured well screen with 0.010-inch machined slots. A bottom plug was placed on the well
screen and a lockable well cap was placed on the top of the riser pipe. The annular space around the well was filled
with filter sand to approximately half a foot above the top of the screen. An approximate one-foot-thick seal
consisting of bentonite pellets was placed above the sand pack and hydrated. A flush-mount cover was installed in
a concrete pad over the well riser pipe. The well construction information is presented in Table 3 and shown on
the boring log (Appendix A). Cuttings from the soft dig and well installation were containerized into drums for later
disposal.
2. Groundwater Sampling and Free Phase Petroleum Measurements
On the date of installation, WSP personnel gauged fluid levels in the well using an oil/water interface probe. The
measured depth to water for MW-1 was 6.92 feet bgs. No free phase petroleum product was noted in the well at
that time. The monitoring well was developed by GEX personnel using a submersible pump. Approximately 35
gallons of development water was containerized into a drum for later disposal.
On June 28, 2023, WSP personnel collected a groundwater sample from monitoring well MW-1. Prior to sample
collection, the water level was measured at 5.68 feet below the top of the casing (BTOC) in the well using an
electronic oil/water interface probe. Approximately 0.01 feet of LNAPL was measured in the well (Table 3).
Following measurement of the groundwater and LNAPL at MW-1, the decision was made to proceed with sampling
the groundwater so that information on the nature of potential used oil-related constituents could be identified as
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

18

soil samples were unable to be collected the previous day. The groundwater sample was collected by low-flow
purging techniques, to the extent possible, in general accordance with the United States Environmental Protection
Agency (USEPA) guidance document “Low Stress (low-flow) Purging and Sampling Procedure for the Collection of
Ground Water Samples from Monitoring Wells”, dated September 19, 2017.
During purging, measurements of groundwater field parameters [pH, specific conductivity, turbidity, temperature,
dissolved oxygen (DO) and oxidation reduction potential (ORP)] were obtained and a groundwater sample was
collected when monitoring parameters had stabilized for three successive readings, taken at 5-minute intervals.
Stability was defined as ± 0.1 standard units (s.u.) for pH, ± 3 percent for specific conductance, ± 10 millivolts (mV)
for ORP, and ± 10 percent or ± 0.5 milligrams per milliliter for DO. Stabilization of turbidity was defined as three
successive turbidity values within 10 percent for values greater than 5 nephelometric turbidity units (NTU) or three
turbidity values less than 5 NTU. The monitoring well sampling record is included in Appendix C. The groundwater
sample was collected from the monitoring well following stabilization, placed in laboratory-provided containers,
placed in a cooler on ice and delivered under chain-of-custody protocol to Waypoint Analytical. The groundwater
sample was analyzed for volatile organic compounds (VOCs) by EPA Method SM 6200B, semi-VOCs by EPA Method
625, metals (chromium and lead) by EPA Method 6010D, and Volatile and Extractable Petroleum Hydrocarbons
(VPH and EPH) by the Massachusetts Department of Environmental Protection (MADEP) methods.
3. Groundwater Sampling Results
The groundwater analytical report and chain-of-custody form is included as Appendix D. The results of the
laboratory analysis of the groundwater sample from MW-1 are summarized in Table 4 and include the following:
• The identified concentration of 1-methylnaphthalene [45.8 micrograms per liter (µg/L)] exceeded
the North Carolina Administrative Code, Title 15A, Subchapter 2L, Section .0202, Groundwater
Quality Standard (NC 2L Standard) of 1 µg/L.
• The identified concentration of naphthalene (175 µg/L) exceeded the NC 2L Standard of 6 µg/L.

Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

19

J. FREE PRODUCT RECOVERY
On July 10, 2023, WSP personnel mobilized to the Site to install a product recovery absorbent sock in MW-1. Prior
to installation, the water level was measured at 6.35 feet BTOC in the well using an electronic oil/water interface
probe. Approximately 0.01 feet of LNAPL was noted in the well (Table 3). Following the fluid level measurements,
WSP installed the absorbent sock so that it approximately straddled the top of the LNAPL surface.
Limited Site Assessment Report – Toddville Garage July 25, 2023
610 Toddville Road, Charlotte, Mecklenburg County, North Carolina 28214
WSP Project: 7818-23-0114

20

K. CONCLUSIONS AND RECOMMENDATIONS
On May 22 and 23, 2023, WSP conducted preliminary investigation activities to evaluate the source of used oil in
the subsurface. Used oil and water were extracted from the OWS, then power washed before visually inspecting it
via remote operated vehicle outfitted with a camera. Three separate cells were observed as was the piping into the
OWS and the piping from cell to cell. Finally, continuity amongst various drains and cleanouts and the OWS or the
used oil UST was evaluated. Continuity from an exterior pipe cleanout to the OWS was confirmed. Continuity was
not confirmed to either the pipe cleanout, the OWS, or the used oil UST from the floor drain located along the
eastern wall of the Garage, that was closed off with a plug and covered with a floor plate.

It is presumed that the floor drain, from which continuity could not be confirmed, the exterior pipe cleanout, and
the OWS were historically connected. However, based on field observations, discussions with site personnel, and
review of limited construction drawings, it is suspected that the buried pipe between the floor drain and the pipe
cleanout and OWS became disconnected (or deteriorated) below the ground surface. It is presumed that this floor
drain remained in service after the buried pipe became damaged and the buried pipe, which is damaged, is the
source of the used oil in the subsurface.

On June 19 and 20, 2023 WSP conducted monitoring well installation activities to evaluate the subsurface near the
OWS. PWR was observed directly underlying the gravel fill and therefore no soil samples were collected. Following
installation of MW-1, approximately 0.01 feet of LNAPL were observed on top of the water table on two separate
dates June 28 and July 10, 2023.

Laboratory analysis of the groundwater sample collected from MW-1 indicated that 1-methylnaphthalene and
naphthalene concentrations exceeded their respective NC 2L Standard.

On July 10, 2023 WSP installed a product recovery sock in MW-1.

Based on the Site observations, results of the LSA, and current NORP and perpetual land use restrictions, covering
the entire parcel, which prohibits the use of the groundwater as a water supply, that is filed with the Mecklenburg
County Register of Deeds Book 32843, Page 860, WSP recommends the NCDEQ consider No Further Action for this
Site.

FIGURES

¯
0 1,000500
Feet
Note: This map is for reference
only. Features depicted are
approximations.
Legend
Title:Date:
Project No:
Drawn by: KNS - Checked by: CC - Date: 7/25/2023
Projection:WSP USA
Environment & Infrastructure Inc.
2801 Yorkmont Road, Suite 100
Charlotte, NC 28208
[phone]
Copyright:© 2013 National Geographic Society, i-cubed, Esri, HERE, Garmin, FAO, NOAA, USGS, EPA, Esri, USGS 2021
Subject Property
File:
Figure:7/25/2023
7818-23-0114
1NC State Plane (NAD83, feet)
\\clt1-fs1\projects\7818 Duke EEOC\Projects\2023\7818-23-0114-Toddville Garage\13
GIS\Working_Data\Toddville_Garage\Toddville_Garage.aprx
SITE USGS TOPOGRAPHIC MAP
Toddville Garage
610 Toddville Road Charlotte,
North Carolina
Garage Location
1 inch = 1,000 feet
¯
0 4020
Feet
Note: This map is for reference
only. Features depicted are
approximations.
Legend
Title:Date:
Project No:
Drawn by: KNS - Checked by: CC - Date: 7/18/2023
Projection:WSP USA
Environment & Infrastructure Inc.
2801 Yorkmont Road, Suite 100
Charlotte, NC 28208
[phone]
Maxar, Microsoft, Copyright:© 2013 National Geographic Society, i-cubed, NC CGIA, Maxar, Microsoft, City of Charlotte 2021
Manhole
Interior Floor Drain
Exterior Pipe Clean
Out
Soft Dig Locations
!A Monitoring Well
Location
Oil Change Pit
Oil-Water Separator
Underground Storage
Tank
File:
Figure:7/18/2023
7818-23-0114 2NC State Plane (NAD83, feet)
P:\7818 Duke EEOC\Projects\2023\7818-23-0114- ToddvilleGarage\13
GIS\Working_Data\Toddville_Garage\Toddville_Garage.aprxS LIPAN STS NAVAJO STW QUINCY AVE
W QUiNCY CIR
SUBJECT SITE FEATURES
Toddville Garage
610 Toddville Road Charlotte,
North Carolina !A1-A
1-B
MW-1
¯
Note: This map is for reference only.
Features depicted are approximations.
Groundwater flow direction obtained
from historical assessment report
(Incident #24555)
Title:Date:
Project No:
Drawn by: KNS - Checked by: CC - Date: 7/24/2023
Projection:WSP USA
Environment & Infrastructure Inc.
2801 Yorkmont Road, Suite 100
Charlotte, NC 28208
[phone]
Esri, HERE, Garmin, FAO, NOAA, USGS, EPA, Maxar 2021
Legend
?Active Private Well
?Inactive Private Well
500 ft Buffer
1,000 ft Buffer
1,500 ft Buffer
Garage
Subject Property
Parcels
Groundwater Flow Direction
Creeks and Streams
Lakes and Ponds
Streets
Business
Commercial Center
Heavy Industrial
Light Industrial
Multi-Family
Neighborhood 1
Neighborhood 2
File:
Figure:7/24/2023
7818-23-0114 3NC State Plane (NAD83, feet)
\\clt1-fs1\projects\7818 Duke EEOC\Projects\2023\7818-23-0114-Toddville Garage\13
GIS\Working_Data\Toddville_Garage\Toddville_Garage.aprx
LAND USE AND RECEPTOR MAP
Toddville Garage
610 Toddville Road
Charlotte, North Carolina?????????????????????????????????????????????????????????????????????????????????????????????????????????HOM ESTEADGLENBVNESTING CTCANANDO STVALLEYDALERDEAG
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FERRY
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1 2
3
4
1. 310 GLENHAVEN DRIVE
PARCEL ID 057-16-301
2. 300 GLENHAVEN DRIVE
PARCEL ID 057-16-302
3. 6620 CRAIG STREET
PARCEL ID 057-16-208
4. 6518 CRAIG STREET
PARCEL ID 057-16-116
WATER SUPPLY WELLS WITHIN1,500 FT SEARCH RADIUS
(NOT VISIBLE FROM ROAD)
(CONFIRMED FROM ROAD)
(NOT VISIBLE FROM ROAD)
(NOT VISIBLE FROM ROAD)
Assurance United
Methodist Church
1 inch = 600 feet
0 600300
US Feet
REVIEWED BY:
SCALE:
HORIZONTAL DATUM:
VERTICAL DATUM:
DRAWN BY:C. Case
NA
NA
Not to Scale
NOTES:
PROJECT No:
7818-23-0114 06/02/2023
DATE:
NOT TO SCALE Duke Energy of the CarolinasToddville Garage- Oil Water SeparatorPlan View
610 Toddville RoadCharlotte, NC 28214S. Damasceno 4
FIGURE:
REVIEWED BY:
SCALE:
HORIZONTAL DATUM:
VERTICAL DATUM:
DRAWN BY:
S. Damasceno
C. Case
NA
NA Duke Energy of the Carolinas
Toddville Garage- Oil Water SeparatorProfile View610 Toddville Road
Charlotte, NC 28214
Not to Scale
NOTES:NOT TO SCALE
PROJECT No:
5
7818-23-0114 06/02/2023
DATE:
FIGURE:

TABLES

Table 1: Site History –System Owner/Operator and Other Responsible Party 
Information 
UST ID Number N/A Facility ID Number N/A 
Name of Property Owner Dates of Ownership 
Duke Energy Carolinas, LLC 2016 to present 
Street Address 
610 Toddville Road 
City State Zip Telephone Number 
Charlotte NC 28214 800‐653‐5307 
Name of UST Owner/Operator Dates of Operation 
Duke Energy Carolinas, LLC Unknown 
Street Address 
525 South Tryon Street 
City State Zip Telephone Number 
Charlotte  NC 28202 704‐382‐0437 
Incident Number 48925 
Table 2
Water Supply Well and Receptor Information
Toddville Garage
610 Toddville Road
Charlotte, North Carolina
WSP Project No.: 7818-23-0114
Well
ID/Name
Approximate
Distance to
Source Area
(feet)
Relative
Position Use
Depth/Casing
Depth
(feet)
Latitude Longitiude Site Address Parcel ID Parcel Owner Information
5715109
Duke Energy Carolinas
550 South Tryon Street DEC
22A Data & Document Management
Charlotte, NC 28202
5720201
City of Charlotte C/O Real Estate Division
600 E 4th Street
Charlotte, NC 28202
Unamed
Tributary to
Paw Creek
800' South Downgradient NA NA Multiple
Unamed
Tributary to
Paw Creek
950' West Crossgradient NA NA Multiple
1 1,200' North Upgradient
Inactive
Drinking Water
Well
Unknown 35.28040, -80.91840 310 Glenhaven Drive
Charlotte, NC 28214 5716301
Timothy and Lynn Freeman
310 Glenhaven Drive
Charlotte, NC 28214
2 1,295' North Upgradient
Inactive
Drinking Water
Well
Unknown 35.28065, -80.91832 300 Glenhaven Drive
Charlotte, NC 28214 5716302
Robert Freeman
300 Glenhaven Drive
Charlotte, NC 28214
3 1,180' Northeast Upgradient
Inactive
Drinking Water
Well
Unknown 35.27957, -80.91712 6620 Craig Street
Charlotte, NC 28214 5716208
Ronald Gosey
6620 Craig Street
Charlotte, NC 28214
4 1,460' Northeast Upgradient Active Drinking
Water Well Unknown 35.27926, -80.91563 6518 Craig Street
Charlotte, NC 28214 5716116
Banks Property Management, LLC
7105 Pleasant Grove Road
Charlotte, NC 28216
Transformer
Shop
Building
500' South Downgradient
Partial
subsurface
basement
Unknown 35.27577, -80.92154
610 Toddville Road
Charlotte, NC 28210
(On-Site)
5715109
Duke Energy Carolinas
550 South Tryon Street DEC
22A Data & Document Management
Charlotte, NC 28202
Prepared By/Date:MDF 7/24/2023
Checked By/Date:CMC 7/24/2023
NAUnnamed
Waterbody 1,150' Northwest Upgradient NA NA Approximately centered at:
35.27985, -80.92264
Multiple
Multiple
Multiple
Multiple
Multiple
Multiple
Table 3
Summary of Well Construction Details
Toddville Garage
610 Toddville Road
Charlotte, North Carolina
WSP Project No.: 7818-23-0114
Well ID Date
Installed
Well Depth
(feet BGS)
Well Diameter
(inches)
Screened Interval
(feet BGS)
Date Water Level
Measured
Depth to LNAPL
(feet below TOC)
LNAPL Thickness
(feet)
Depth to Water
(feet below TOC)
6/28/2023 5.67 0.01 5.68
7/10/2023 6.34 0.01 6.35
Notes:Prepared By/Date:MDF 7/11/2023
Checked By/Date:AJF 7/11/2023
2. BGS = Below ground surface
3. LNAPL = Light Non-Aqueous Phase Liquid
1. TOC = Top of casing
18.5 2 3.5 - 18.5MW-01 6/20/2023
Table 4
Summary of Groundwater Analytical Detections
Toddville Garage
610 Toddville Road
Charlotte, North Carolina
WSP Project No.: 7818-23-0114
Sample Date: 6/28/2023
Sample ID: MW-1
Aliphatic (C09-C18)51.8 JB 700 NSL
1-Methylnaphthalene 45.8 1 1,000
Naphthalene 175 6 6,000
Phenanthrene 0.626 J 200 550
Acetone 1.97 J 6,000 6,000,000
Prepared By/Date:MDF 7/11/2023
Notes:Checked By/Date:AJF 7/11/2023
1. Results shown in micrograms per liter (µg/L)
2. Concentrations in bold and orange highlight exceeded the NC 2L Groundwater Standards
3. NSL = No Standard Listed
4. NC 2L Groundwater Standards = North Carolina Administrative Code, Title 15A, Subchapter 2L, Section .0202, Groundwater Quality Standards,
dated April 1, 2022
5. GCL = Gross Contaminant Levels for Groundwater, revised October 20, 2020.
6. J = Indicates compound was detected at a concentration below the Method Quantitation Limits (lowest calibration standard),
Detection is considered an estimate
7. B = Analyte detected in blank.
8. MADEP VPH & EPH = Massachusetts Department of Environmental Protection Volatile and Extractable Petroleum Hydrocarbons
9. Analytes detected above Method Detection Limit (MDL) are shown, see the laboratory analytical report for the complete analyte list
Semi-volatile Organic Compounds (SVOCs)
Volatile Organic Compounds (VOCs)
Analyte
NC 2L Groundwater
Standards
(µg/L)
NCDEQ UST Section
GCLs
(µg/L)
MADEP Volatile and Extractable Petroleum Hydrocarbons (VPH & EPH)
Metals (Chromium and Lead)
Not detected above MDL

APPENDIX A Boring Logs and Well Construction Record

Depth (Ō)1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 Sample TypeSoil Sample IDBlow Counts(N Value)EnvironmentalDataElevaƟon (Ō)-5.0
-10.0
-15.0 GraphicMaterial DescripƟon
Concrete (Reinforced With Steel Mesh)
FILL, Brown And Gray Sandy Silty Gravel (GM)
(~57 Stone), Dry
ParƟally Weathered Rock (PWR), Logged As
Moderately To Slightly Weathered Diorite And
Granodiorite (Joints And Fractures Visible)
PWR, Logged As Moderate To Slightly
Weathered Diorite And Granodiorite
2.5 Ō - SoŌ Dig Refusal
PWR, Logged As Moderately Weathered Fine
Grained Diorite
7 Ō - Driller indicates slight odor
PWR, Logged As Moderate To Slightly
Weathered Granite To Granodiorite
Well Details
Borehole ID: MW-1Sheet 1 of 1
Project Name:Toddville Garage Project LocaƟon
Project LocaƟon:610 Toddville Road CharloƩe North Carolina
Client:
Project Number: 7818230114 Date Started: Jun 19 2023 Completed:Jun 20 2023 Logged By:Mike Flanik Checked By:Chris Case
Drilling Contractor:Geologic ExploraƟon LaƟtude:Longitude:ElevaƟon:
Drilling Method:4.25" HSA Ground Water Levels
Equipment:Hammer Type:End of drilling 6.92 on Jun 20 2023
Notes:AŌer drilling 5.68 on Jun 28 2023
Duke Energy
Soft Dig Air Knife & Vacuum/Geoprobe 3230DT
Total Depth: 18.5 ft
Screen: 3.5-18.5 ft
Sand: 3.0-18.5 ft
Bentonite: 2.0-3.0 ft
Concrete: 0.0-2.0 ft
Auger Refusal at 19 ft
LNAPL: 5.67
WELL CONSTRUCTION RECORD (GW-1) For Internal Use Only:
Form GW-1 North Carolina Department of Environmental Quality - Division of Water Resources Revised 6-6-2018
1.Well Contractor Information:
Well Contractor Name
NC Well Contractor Certification Number
Company Name
2.Well Construction Permit #: List all applicable well construction permits (i.e. UIC, County, State, Variance, etc.)
3.Well Use (check well use):
Water Supply Well: □Agricultural □Municipal/Public □Geothermal (Heating/Cooling Supply) □Residential Water Supply (single) □Industrial/Commercial □Residential Water Supply (shared) □Irrigation □Wells > 100,000 GPDNon-Water Supply Well: □Monitoring □Recovery
Injection Well: □Aquifer Recharge □Groundwater Remediation □Aquifer Storage and Recovery □Salinity Barrier □Aquifer Test □Stormwater Drainage □Experimental Technology □Subsidence Control □Geothermal (Closed Loop)□Tracer □Geothermal (Heating/Cooling Return) □Other (explain under #21 Remarks)
4. Date Well(s) Completed: Well ID#
5a. Well Location:
Facility/Owner Name Facility ID# (if applicable)
Physical Address, City, and Zip
County Parcel Identification No. (PIN)
5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees: (if well field, one lat/long is sufficient)
N W
6.Is(are) the well(s): □Permanent or □Temporary
7.Is this a repair to an existing well: □Yes or □No
If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form.
8. For Geoprobe/DPT or Closed-Loop Geothermal Wells having the same construction, only 1 GW-1 is needed. Indicate TOTAL NUMBER of wellsdrilled:
9. Total well depth below land surface: (ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100′)
10.Static water level below top of casing: (ft.) If water level is above casing, use “+”
11. Borehole diameter: (in.)
12. Well construction method:(i.e. auger, rotary, cable, direct push, etc.)
FOR WATER SUPPLY WELLS ONLY:
13a. Yield (gpm) Method of test:
13b. Disinfection type: Amount:
14. WATER ZONES
FROM TO DESCRIPTION
ft. ft.
ft. ft.
15. OUTER CASING (for multi-cased wells) OR LINER (if applicable)FROM TO DIAMETER THICKNESS MATERIAL ft. ft. in.
16. INNER CASING OR TUBING (geothermal closed-loop)FROM TO DIAMETER THICKNESS MATERIAL
ft. ft. in.
ft. ft. in.
17. SCREENFROM TO DIAMETER SLOT SIZE THICKNESS MATERIAL
ft. ft. in.
ft. ft. in.
18. GROUT
FROM TO MATERIAL EMPLACEMENT METHOD & AMOUNT
ft. ft.
ft. ft.
ft. ft.
19. SAND/GRAVEL PACK (if applicable) FROM TO MATERIAL EMPLACEMENT METHOD
ft. ft.
ft. ft.
20. DRILLING LOG (attach additional sheets if necessary) FROM TO DESCRIPTION (color, hardness, soil/rock type, grain size, etc.)
ft. ft.
ft. ft.
ft. ft.
ft. ft.
ft. ft.
ft. ft.
ft. ft.
21. REMARKS
22.Certification:
Signature of Certified Well Contractor Date
By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner.
23.Site diagram or additional well details:You may use the back of this page to provide additional well construction info (add 'See Over' in Remarks Box). You may also attach additional pages if necessary.
24.SUBMITTAL INSTRUCTIONS
Submit this GW-1 within 30 days of well completion per the following:
24a. For All Wells: Original form to Division of Water Resources (DWR), Information Processing Unit, 1617 MSC, Raleigh, NC 27699-1617
24b. For Injection Wells: Copy to DWR, Underground Injection Control (IUC) Program, 1636 MSC, Raleigh, NC 27699-1636
24c. For Water Supply and Open-Loop Geothermal Return Wells: Copy to the county environmental health department of the county where installed
24d. For Water Wells producing over 100,000 GPD: Copy to DWR, CCPCUA Permit Program, 1611 MSC, Raleigh, NC 27699-1611
Depth (Ō)1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 Sample TypeSoil Sample IDBlow Counts(N Value)EnvironmentalDataElevaƟon (Ō)-5.0
-10.0
-15.0 GraphicMaterial DescripƟon
Concrete (Reinforced With Steel Mesh)
FILL, Brown And Gray Sandy, Silty Gravel (GM)ParƟally Weathered Rock (PWR), Logged As
Highly Weathered Brown, White And Gray
Diorite And Granodiorite
PWR, Logged As Brown, White, And Gray
Moderate To Slightly Weathered Diorite And
Granodiorite (Joints And Fractures Visible)
SoŌ Dig Refusal at 2.9 ft
Well Details
Borehole ID: 1ASheet 1 of 1
Client:Project Name:Toddville Garage Project LocaƟon
Project Number:7818230114 Project LocaƟon:610 Toddville Road CharloƩe North Carolina
Date Started:Jun 19 2023 Completed:Jun 19 2023 Logged By:Mike Flanik Checked By:Chris Case
Drilling Contractor:LaƟtude:Longitude:ElevaƟon:
Drilling Method:Ground Water Levels
Equipment:Hammer Type:
Notes:
Duke Energy
Soft Dig Air Knife & Vacuum
Taylor Wiseman
Depth (Ō)1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 Sample TypeSoil Sample IDBlow Counts(N Value)EnvironmentalDataElevaƟon (Ō)-5.0
-10.0
-15.0 GraphicMaterial DescripƟon
Concrete (Reinforced With Steel Mesh)
FILL, Brown And Gray Sandy, Silty Gravel (GM)ParƟally Weathered Rock (PWR), Logged As
Highly Weathered Brown, White And Gray
Diorite And Granodiorite
PWR, Logged As Brown, White, And Gray
Moderate To Slightly Weathered Diorite And
Granodiorite (Joints And Fractures Visible)
SoŌ Dig Refusal at 2.5 ft
Well Details
Borehole ID: 1BSheet 1 of 1
Client:Project Name:Toddville Garage Project LocaƟon
Project Number:7818230114 Project LocaƟon:610 Toddville Road CharloƩe North Carolina
Date Started:Jun 19 2023 Completed:Jun 19 2023 Logged By:Mike Flanik Checked By:Chris Case
Drilling Contractor:LaƟtude:Longitude:ElevaƟon:
Drilling Method:Ground Water Levels
Equipment:Hammer Type:
Notes:
Soft Dig Air Knife & Vacuum
Duke Energy
Taylor Wiseman

APPENDIX B Photographs of Investigation Activities
Toddville Garage 
Investigation Activitites Photograph Log 
Date Photographs Taken: May 22 and 23, 2023 
Photograph 1 
Oil Water Separator 
(OWS) Manhole Covers 
Photograph 2 
North Cell of OWS 
Toddville Garage 
Investigation Activitites Photograph Log 
Date Photographs Taken: May 22 and 23, 2023 
Photograph 3 
Middle Cell of OWS 
Photograph 4 
Southern Cell of OWS 
Toddville Garage 
Investigation Activitites Photograph Log 
Date Photographs Taken: May 22 and 23, 2023 
Photograph 5 
Interior Floor Drain‐ 
Capped and Plugged 
Photograph 6
Vent lines that lead to 
cell three of the OWS 
Toddville Garage 
Investigation Activitites Photograph Log 
Date Photographs Taken: May 22 and 23, 2023 
Photograph 7
Oil change pit and 
current oil disposal 
piping connected to the 
used oil UST. 
Toddville Garage
Soft Dig, Well Installation, Sampling, and Receptor Survey Photograph Log
Date Photographs Taken: June 19, 20, 28 and July 12, 2023
Photograph 8
Utility locate next to Oil
Water Separator (OWS)
Photograph 9
Beginning of Soft Dig
activities and removal
of concrete at MW-1
Toddville Garage
Soft Dig, Well Installation, Sampling, and Receptor Survey Photograph Log
Date Photographs Taken: June 19, 20, 28 and July 12, 2023
Photograph 10
Partially Weathered
Rock (PWR)
encountered in MW-1
Photograph 11
MW-1 and 1A in
background (left to
right) and 1B in the
foreground
Toddville Garage
Soft Dig, Well Installation, Sampling, and Receptor Survey Photograph Log
Date Photographs Taken: June 19, 20, 28 and July 12, 2023
Photograph 12
PWR encountered
during drilling of MW-1
(Note: sample is wet
due to washing off to
expose features)
Photograph 13
Purge water during
sampling of MW-1
Toddville Garage
Soft Dig, Well Installation, Sampling, and Receptor Survey Photograph Log
Date Photographs Taken: June 19, 20, 28 and July 12, 2023
Photograph 14
Well house located
at 6518 Craig Street

APPENDIX C Monitoring Well Sampling Record

APPENDIX D Laboratory Analytical Report and Chain of Custody

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.

7/10/2023
WSP USA Envi. & Infrastructure Inc.(Charlotte) Chris Case
2801 Yorkmont Rd. #100 Charlotte, NC, 28208
Ref: Analytical Testing
Lab Report Number: 23-179-0028 Client Project Description: Duke Toddville Garage LSA
J23060309
Dear Chris Case:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 6/28/2023 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 36
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 00016/23-179-0028
Page 2 of 36
Report Number:
Sample Summary Table
Client Project Description:
23-179-0028
Duke Toddville Garage LSA
J23060309
Lab No Client Sample ID Matrix Date Collected Date Received
06/28/2023 11:42Aqueous 99477 MW-1 06/28/2023 14:12
06/28/2023Aqueous 99478 Trip Blank 06/28/2023 14:12
Page 3 of 36

Client: WSP USA Envi. & Infrastructure Inc.(Charlotte) CASE NARRATIVE
Project: Duke Toddville Garage LSA Lab Report Number: 23-179-0028
Date: 7/10/2023
625.1 - Base/Neutrals and Acids by GC/MS Method 625.1 Analyte: 3&4-Methylphenol QC Batch No: V34997/V34962
This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for
a low bias.
Analyte: Benzidine QC Batch No: V34997/V34962
This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for
a low bias. Volatile Organic Compounds - GC/MS Method 6200B Analyte: Ethanol
QC Batch No: V35083/V35074 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits.

Page 4 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
<0.002 mg/L 0.002 0.005Chromium 1 07/07/23 11:51 6010DMMR
<0.002 mg/L 0.002 0.006Lead 1 07/04/23 02:37 6010DJKC
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 5 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
1.97 J µg/L 1.80 10.0Acetone 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.500Benzene 1 07/07/23 00:55 V35083ENM
<0.210 µg/L 0.210 0.500Bromobenzene 1 07/07/23 00:55 V35083ENM
<0.420 µg/L 0.420 1.00Bromochloromethane 1 07/07/23 00:55 V35083ENM
<0.160 µg/L 0.160 0.500Bromodichloromethane 1 07/07/23 00:55 V35083ENM
<1.50 µg/L 1.50 5.00Bromoform 1 07/07/23 00:55 V35083ENM
<0.280 µg/L 0.280 1.00Bromomethane 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.500n-Butylbenzene 1 07/07/23 00:55 V35083ENM
<0.200 µg/L 0.200 0.500
sec-Butyl benzene 1 07/07/23 00:55 V35083ENM
<0.920 µg/L 0.920 2.00tert-Butyl benzene 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 07/07/23 00:55 V35083ENM
<0.190 µg/L 0.190 0.500Chlorobenzene 1 07/07/23 00:55 V35083ENM
<0.190 µg/L 0.190 0.500Chlorodibromomethane 1 07/07/23 00:55 V35083ENM
<0.430 µg/L 0.430 1.00Chloroethane 1 07/07/23 00:55 V35083ENM
<0.220 µg/L 0.220 0.500Chloroform 1 07/07/23 00:55 V35083ENM
<0.220 µg/L 0.220 0.500
Chloromethane 1 07/07/23 00:55 V35083ENM
<0.200 µg/L 0.200 0.5002-Chlorotoluene 1 07/07/23 00:55 V35083ENM
<0.200 µg/L 0.200 0.5004-Chlorotoluene 1 07/07/23 00:55 V35083ENM
<0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 07/07/23 00:55 V35083ENM
<1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 07/07/23 00:55 V35083ENM
<0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 07/07/23 00:55 V35083ENM
<0.230 µg/L 0.230 0.500Dibromomethane 1 07/07/23 00:55 V35083ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 6 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
<0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 07/07/23 00:55 V35083ENM
<0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 07/07/23 00:55 V35083ENM
<0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 07/07/23 00:55 V35083ENM
<1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 07/07/23 00:55 V35083ENM
<0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 07/07/23 00:55 V35083ENM
<0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 07/07/23 00:55 V35083ENM
<0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 07/07/23 00:55 V35083ENM
<0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.500
trans-1,2-Dichloroethene 1 07/07/23 00:55 V35083ENM
<0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 07/07/23 00:55 V35083ENM
<0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 07/07/23 00:55 V35083ENM
<0.210 µg/L 0.210 2.002,2-Dichloropropane 1 07/07/23 00:55 V35083ENM
<0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 07/07/23 00:55 V35083ENM
<0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 07/07/23 00:55 V35083ENM
<0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 07/07/23 00:55 V35083ENM
<42.0 µg/L 42.0 200
Ethanol 1 07/07/23 00:55 V35083ENM
<0.170 µg/L 0.170 0.500Ethylbenzene 1 07/07/23 00:55 V35083ENM
<0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 07/07/23 00:55 V35083ENM
<0.380 µg/L 0.380 1.002-Hexanone 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.500Isopropylbenzene 1 07/07/23 00:55 V35083ENM
<0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 07/07/23 00:55 V35083ENM
<0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 07/07/23 00:55 V35083ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 7 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
<0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 07/07/23 00:55 V35083ENM
<0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 07/07/23 00:55 V35083ENM
<0.330 µg/L 0.330 2.00Methylene Chloride 1 07/07/23 00:55 V35083ENM
<0.470 µg/L 0.470 1.00Naphthalene 1 07/07/23 00:55 V35083ENM
<0.190 µg/L 0.190 0.500n-Propylbenzene 1 07/07/23 00:55 V35083ENM
<0.220 µg/L 0.220 0.500Styrene 1 07/07/23 00:55 V35083ENM
<0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 07/07/23 00:55 V35083ENM
<0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 07/07/23 00:55 V35083ENM
<0.220 µg/L 0.220 0.500
Tetrachloroethene 1 07/07/23 00:55 V35083ENM
<0.220 µg/L 0.220 0.500Toluene 1 07/07/23 00:55 V35083ENM
<0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 07/07/23 00:55 V35083ENM
<0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 07/07/23 00:55 V35083ENM
<0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 07/07/23 00:55 V35083ENM
<0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.500Trichloroethene 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.500
Trichlorofluoromethane 1 07/07/23 00:55 V35083ENM
<0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 07/07/23 00:55 V35083ENM
<0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 07/07/23 00:55 V35083ENM
<0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 07/07/23 00:55 V35083ENM
<1.00 µg/L 1.00 5.00Vinyl Acetate 1 07/07/23 00:55 V35083ENM
<0.170 µg/L 0.170 0.500Vinyl Chloride 1 07/07/23 00:55 V35083ENM
<0.210 µg/L 0.210 0.500o-Xylene 1 07/07/23 00:55 V35083ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 8 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
<0.420 µg/L 0.420 1.00m,p-Xylene 1 07/07/23 00:55 V35083ENM
<0.21 µg/L 0.210 0.500Xylene (Total)1 07/07/23 00:55 V35083
Surrogate: 4-Bromofluorobenzene 94.0 Limits: 70-130%07/07/23 00:551 ENM V35083
Surrogate: Dibromofluoromethane 96.6 Limits: 70-130%07/07/23 00:551 ENM V35083
Surrogate: 1,2-Dichloroethane - d4 93.8 Limits: 70-130%07/07/23 00:551 ENM V35083
Surrogate: Toluene-d8 94.4 Limits: 70-130%07/07/23 00:551 ENM V35083
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V34962 07/05/23 10:18
<0.305 µg/L 0.305 2.02Acenaphthene 1 07/05/23 19:13 V34997AMP
<0.299 µg/L 0.299 2.02Acenaphthylene 1 07/05/23 19:13 V34997AMP
<0.844 µg/L 0.844 2.02Anthracene 1 07/05/23 19:13 V34997AMP
<1.33 M
µg/L 1.33 10.1
Benzidine 1 07/05/23 19:13 V34997AMP
<0.643 µg/L 0.643 2.02Benzo(a)anthracene 1 07/05/23 19:13 V34997AMP
<1.03 µg/L 1.03 2.02Benzo(a)pyrene 1 07/05/23 19:13 V34997AMP
<2.51 µg/L 2.51 5.05Benzo(b)fluoranthene 1 07/05/23 19:13 V34997AMP
<1.02 µg/L 1.02 5.05Benzo(g,h,i)perylene 1 07/05/23 19:13 V34997AMP
<2.01 µg/L 2.01 5.05Benzo(k)fluoranthene 1 07/05/23 19:13 V34997AMP
<1.11 µg/L 1.11 10.1Benzoic Acid 1 07/05/23 19:13 V34997AMP
<0.690 µg/L 0.690 5.05
Benzyl alcohol 1 07/05/23 19:13 V34997AMP
<0.472 µg/L 0.472 5.05Bis(2-Chloroethoxy)methane 1 07/05/23 19:13 V34997AMP
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 9 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V34962 07/05/23 10:18
<1.05 µg/L 1.05 5.05Bis(2-Chloroethyl)ether 1 07/05/23 19:13 V34997AMP
<1.09 µg/L 1.09 5.05Bis(2-Chloroisopropyl)ether 1 07/05/23 19:13 V34997AMP
<3.49 µg/L 3.49 10.1Bis(2-ethylhexyl)phthalate 1 07/05/23 19:13 V34997AMP
<1.12 µg/L 1.12 5.054-Bromophenyl phenyl ether 1 07/05/23 19:13 V34997AMP
<1.85 µg/L 1.85 5.05Butyl benzyl phthalate 1 07/05/23 19:13 V34997AMP
<1.19 µg/L 1.19 5.054-Chloro-3-methylphenol 1 07/05/23 19:13 V34997AMP
<7.45 µg/L 7.45 20.22-Chloronaphthalene 1 07/05/23 19:13 V34997AMP
<0.947 µg/L 0.947 10.12-Chlorophenol 1 07/05/23 19:13 V34997AMP
<1.73 µg/L 1.73 5.05
4-Chlorophenyl phenyl ether 1 07/05/23 19:13 V34997AMP
<0.409 µg/L 0.409 2.02Chrysene 1 07/05/23 19:13 V34997AMP
<0.438 µg/L 0.438 2.02Dibenz(a,h)anthracene 1 07/05/23 19:13 V34997AMP
<0.864 µg/L 0.864 5.05Dibenzofuran 1 07/05/23 19:13 V34997AMP
<2.02 µg/L 2.02 5.051,2-Dichlorobenzene 1 07/05/23 19:13 V34997AMP
<2.02 µg/L 2.02 5.051,3-Dichlorobenzene 1 07/05/23 19:13 V34997AMP
<2.07 µg/L 2.07 5.051,4-Dichlorobenzene 1 07/05/23 19:13 V34997AMP
<1.91 µg/L 1.91 5.05
3,3'-Dichlorobenzidine 1 07/05/23 19:13 V34997AMP
<1.47 µg/L 1.47 10.12,4-Dichlorophenol 1 07/05/23 19:13 V34997AMP
<0.752 µg/L 0.752 5.05Diethyl phthalate 1 07/05/23 19:13 V34997AMP
<0.948 µg/L 0.948 5.05Dimethyl phthalate 1 07/05/23 19:13 V34997AMP
<1.59 µg/L 1.59 20.22,4-Dimethylphenol 1 07/05/23 19:13 V34997AMP
<2.08 µg/L 2.08 5.05Di-n-butyl phthalate 1 07/05/23 19:13 V34997AMP
<2.09 µg/L 2.09 10.14,6-Dinitro-2-methylphenol 1 07/05/23 19:13 V34997AMP
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 10 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V34962 07/05/23 10:18
<1.94 µg/L 1.94 10.12,4-Dinitrophenol 1 07/05/23 19:13 V34997AMP
<1.12 µg/L 1.12 5.052,4-Dinitrotoluene 1 07/05/23 19:13 V34997AMP
<0.817 µg/L 0.817 5.052,6-Dinitrotoluene 1 07/05/23 19:13 V34997AMP
<1.67 µg/L 1.67 5.05Di-n-Octyl Phthalate 1 07/05/23 19:13 V34997AMP
<0.252 µg/L 0.252 2.02Fluoranthene 1 07/05/23 19:13 V34997AMP
<0.815 µg/L 0.815 2.02Fluorene 1 07/05/23 19:13 V34997AMP
<0.988 µg/L 0.988 5.05Hexachlorobenzene 1 07/05/23 19:13 V34997AMP
<2.76 µg/L 2.76 5.05Hexachlorobutadiene 1 07/05/23 19:13 V34997AMP
<2.07 µg/L 2.07 5.05
Hexachlorocyclopentadiene 1 07/05/23 19:13 V34997AMP
<1.78 µg/L 1.78 5.05Hexachloroethane 1 07/05/23 19:13 V34997AMP
<0.481 µg/L 0.481 2.02Indeno(1,2,3-cd)pyrene 1 07/05/23 19:13 V34997AMP
<0.448 µg/L 0.448 5.05Isophorone 1 07/05/23 19:13 V34997AMP
45.8 µg/L 1.15 2.021-Methylnaphthalene 1 07/05/23 19:13 V34997AMP
<1.16 µg/L 1.16 5.052-Methylphenol 1 07/05/23 19:13 V34997AMP
<0.888 M µg/L 0.888 10.13&4 Methylphenol 1 07/05/23 19:13 V34997AMP
175 µg/L 0.735 2.02
Naphthalene 1 07/05/23 19:13 V34997AMP
<0.914 µg/L 0.914 5.05Nitrobenzene 1 07/05/23 19:13 V34997AMP
<0.497 µg/L 0.497 5.052-Nitrophenol 1 07/05/23 19:13 V34997AMP
<1.24 µg/L 1.24 10.14-Nitrophenol 1 07/05/23 19:13 V34997AMP
<1.11 µg/L 1.11 5.05N-Nitrosodiphenylamine 1 07/05/23 19:13 V34997AMP
<0.647 µg/L 0.647 5.05N-Nitroso-di-n-propylamine 1 07/05/23 19:13 V34997AMP
<1.44 µg/L 1.44 5.05Pentachlorophenol 1 07/05/23 19:13 V34997AMP
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 11 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V34962 07/05/23 10:18
0.626 J µg/L 0.432 2.02Phenanthrene 1 07/05/23 19:13 V34997AMP
<0.657 µg/L 0.657 5.05Phenol 1 07/05/23 19:13 V34997AMP
<0.438 µg/L 0.438 2.02Pyrene 1 07/05/23 19:13 V34997AMP
<2.23 µg/L 2.23 5.051,2,4-Trichlorobenzene 1 07/05/23 19:13 V34997AMP
<1.33 µg/L 1.33 5.052,4,6-Trichlorophenol 1 07/05/23 19:13 V34997AMP
625.1Surrogate: Phenol-d5 20.8 Limits: 10-63%07/05/23 19:131 AMP
Surrogate: 2-Fluorobiphenyl 56.8 Limits: 49-118%07/05/23 19:131 AMP V34997
Surrogate: 2-Fluorophenol 32.4 Limits: 22-84%07/05/23 19:131 AMP V34997
Surrogate: Nitrobenzene-d5 51.9 Limits: 43-123%07/05/23 19:131 AMP V34997
Surrogate: 4-Terphenyl-d14 66.5 Limits: 49-151%07/05/23 19:131 AMP V34997
Surrogate: 2,4,6-Tribromophenol 55.2 Limits: 31-144%07/05/23 19:131 AMP V34997
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 12 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:MW-1
99477 Matrix:
6/28/2023 11:42
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
MAEPH (Prep)
MADEP-EPH Prep Batch(es):V34904 07/03/23 09:54
51.8 JB µg/L 28.2 350Aliphatic C9-C18 1 07/06/23 14:17 V35026NDL
<124 µg/L 124 500Aliphatic C19-C36 1 07/06/23 14:17 V35026NDL
<61.2 µg/L 61.2 250Aromatic C11-C22 1 07/06/23 14:17 V35026NDL
MADEP-EPHSurrogate: 2-Bromonaphthalene 84.8 Limits: 40-140%07/06/23 14:171 NDL
MADEP-EPHSurrogate: Chlorooctadecane 53.1 Limits: 40-140%07/06/23 14:171 NDL
MADEP-EPHSurrogate: OTP Surrogate 67.4 Limits: 40-140%07/06/23 14:171 NDL
Surrogate: 2-Fluorobiphenyl 83.3 Limits: 40-140%07/06/23 14:171 NDL V35026
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
MAVPH (Prep)
MADEP-VPH Prep Batch(es):V34875 06/29/23 08:00
<11.5 µg/L 11.5 50.0
Aliphatic C5-C8 1 06/29/23 13:20 V34876TBL
<25.8 µg/L 25.8 50.0Aliphatic C9-C12 1 06/29/23 13:20 V34876TBL
<4.02 µg/L 4.02 50.0Aromatic C9-C10 1 06/29/23 13:20 V34876TBL
MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)93.7 Limits: 70-130%06/29/23 13:201 TBL
MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)115 Limits: 70-130%06/29/23 13:201 TBL
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 13 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99478 Matrix:
6/28/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
<1.80 µg/L 1.80 10.0Acetone 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.500Benzene 1 07/06/23 19:25 V35083ENM
<0.210 µg/L 0.210 0.500Bromobenzene 1 07/06/23 19:25 V35083ENM
<0.420 µg/L 0.420 1.00Bromochloromethane 1 07/06/23 19:25 V35083ENM
<0.160 µg/L 0.160 0.500Bromodichloromethane 1 07/06/23 19:25 V35083ENM
<1.50 µg/L 1.50 5.00Bromoform 1 07/06/23 19:25 V35083ENM
<0.280 µg/L 0.280 1.00Bromomethane 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.500n-Butylbenzene 1 07/06/23 19:25 V35083ENM
<0.200 µg/L 0.200 0.500
sec-Butyl benzene 1 07/06/23 19:25 V35083ENM
<0.920 µg/L 0.920 2.00tert-Butyl benzene 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 07/06/23 19:25 V35083ENM
<0.190 µg/L 0.190 0.500Chlorobenzene 1 07/06/23 19:25 V35083ENM
<0.190 µg/L 0.190 0.500Chlorodibromomethane 1 07/06/23 19:25 V35083ENM
<0.430 µg/L 0.430 1.00Chloroethane 1 07/06/23 19:25 V35083ENM
<0.220 µg/L 0.220 0.500Chloroform 1 07/06/23 19:25 V35083ENM
<0.220 µg/L 0.220 0.500
Chloromethane 1 07/06/23 19:25 V35083ENM
<0.200 µg/L 0.200 0.5002-Chlorotoluene 1 07/06/23 19:25 V35083ENM
<0.200 µg/L 0.200 0.5004-Chlorotoluene 1 07/06/23 19:25 V35083ENM
<0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 07/06/23 19:25 V35083ENM
<1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 07/06/23 19:25 V35083ENM
<0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 07/06/23 19:25 V35083ENM
<0.230 µg/L 0.230 0.500Dibromomethane 1 07/06/23 19:25 V35083ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 14 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99478 Matrix:
6/28/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
<0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 07/06/23 19:25 V35083ENM
<0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 07/06/23 19:25 V35083ENM
<0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 07/06/23 19:25 V35083ENM
<1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 07/06/23 19:25 V35083ENM
<0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 07/06/23 19:25 V35083ENM
<0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 07/06/23 19:25 V35083ENM
<0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 07/06/23 19:25 V35083ENM
<0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.500
trans-1,2-Dichloroethene 1 07/06/23 19:25 V35083ENM
<0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 07/06/23 19:25 V35083ENM
<0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 07/06/23 19:25 V35083ENM
<0.210 µg/L 0.210 2.002,2-Dichloropropane 1 07/06/23 19:25 V35083ENM
<0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 07/06/23 19:25 V35083ENM
<0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 07/06/23 19:25 V35083ENM
<0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 07/06/23 19:25 V35083ENM
<42.0 µg/L 42.0 200
Ethanol 1 07/06/23 19:25 V35083ENM
<0.170 µg/L 0.170 0.500Ethylbenzene 1 07/06/23 19:25 V35083ENM
<0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 07/06/23 19:25 V35083ENM
<0.380 µg/L 0.380 1.002-Hexanone 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.500Isopropylbenzene 1 07/06/23 19:25 V35083ENM
<0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 07/06/23 19:25 V35083ENM
<0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 07/06/23 19:25 V35083ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 15 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99478 Matrix:
6/28/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
<0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 07/06/23 19:25 V35083ENM
<0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 07/06/23 19:25 V35083ENM
<0.330 µg/L 0.330 2.00Methylene Chloride 1 07/06/23 19:25 V35083ENM
<0.470 µg/L 0.470 1.00Naphthalene 1 07/06/23 19:25 V35083ENM
<0.190 µg/L 0.190 0.500n-Propylbenzene 1 07/06/23 19:25 V35083ENM
<0.220 µg/L 0.220 0.500Styrene 1 07/06/23 19:25 V35083ENM
<0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 07/06/23 19:25 V35083ENM
<0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 07/06/23 19:25 V35083ENM
<0.220 µg/L 0.220 0.500
Tetrachloroethene 1 07/06/23 19:25 V35083ENM
<0.220 µg/L 0.220 0.500Toluene 1 07/06/23 19:25 V35083ENM
<0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 07/06/23 19:25 V35083ENM
<0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 07/06/23 19:25 V35083ENM
<0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 07/06/23 19:25 V35083ENM
<0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.500Trichloroethene 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.500
Trichlorofluoromethane 1 07/06/23 19:25 V35083ENM
<0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 07/06/23 19:25 V35083ENM
<0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 07/06/23 19:25 V35083ENM
<0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 07/06/23 19:25 V35083ENM
<1.00 µg/L 1.00 5.00Vinyl Acetate 1 07/06/23 19:25 V35083ENM
<0.170 µg/L 0.170 0.500Vinyl Chloride 1 07/06/23 19:25 V35083ENM
<0.210 µg/L 0.210 0.500o-Xylene 1 07/06/23 19:25 V35083ENM
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 16 of 36
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28208
23-179-0028
01069
WSP USA Envi. & Infrastructure Inc.(Charlotte)
2801 Yorkmont Rd. #100
Chris Case
Charlotte
Danyale Love
Project Manager
J23060309 Received : 06/28/2023
Duke Toddville Garage LSA
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99478 Matrix:
6/28/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V35074 07/06/23 09:00
<0.420 µg/L 0.420 1.00m,p-Xylene 1 07/06/23 19:25 V35083ENM
<0.21 µg/L 0.210 0.500Xylene (Total)1 07/06/23 19:25 V35083
Surrogate: 4-Bromofluorobenzene 92.6 Limits: 70-130%07/06/23 19:251 ENM V35083
Surrogate: Dibromofluoromethane 97.4 Limits: 70-130%07/06/23 19:251 ENM V35083
Surrogate: 1,2-Dichloroethane - d4 92.6 Limits: 70-130%07/06/23 19:251 ENM V35083
Surrogate: Toluene-d8 95.6 Limits: 70-130%07/06/23 19:251 ENM V35083
Qualifiers/
Definitions
Dilution FactorDFAnalyte detected in blankB
Minimum valueMEstimated valueJ
Method Quantitation LimitMQL
Page 17 of 36
Sample ID Report Lab No
LRB‐V34962 23‐179‐0028 LRB
Paramater Result Units
Dilution 
Factor Method Analysis Date/Time Analyst Batch ID
Hexadecanoic acid 12.2 ug/L 1 625 7/5/2023 18:06 APANN V34997
Sample ID Report Lab NoMW‐1 23‐179‐0028 99477
Paramater Result Units
Dilution 
Factor Method Analysis Date/Time Analyst Batch ID
Toluene 118.8 ug/L 1 625 7/5/2023 19:13 APANN V34997
Xylene 476.4 ug/L 1 625 7/5/2023 19:13 APANN V34997
Benzene, (methylethyl)‐70.8 ug/L 1 625 7/5/2023 19:13 APANN V34997
Benzene, propyl‐93.6 ug/L 1 625 7/5/2023 19:13 APANN V34997
Benzene, ethyl‐methyl‐472.4 ug/L 1 625 7/5/2023 19:13 APANN V34997
Indane 100.7 ug/L 1 625 7/5/2023 19:13 APANN V34997
Benzene, diethyl‐26.3 ug/L 1 625 7/5/2023 19:13 APANN V34997
Benzene, ethyl‐dimethyl‐101.3 ug/L 1 625 7/5/2023 19:13 APANN V34997
Page 18 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Metals Analysis
6010D
V34976,V35071QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3005A
QC Prep:V34888
Associated Lab Samples: 99477
LRB-V34888 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
07/07/23 11:420.0050.002<0.002mg/LChromium
07/04/23 02:190.0060.002<0.002mg/LLead
LCS-V34888Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
1101.101.00mg/LChromium 80-120
1030.1030.100mg/LLead 80-120
V 99477-MS-V34888 V 99477-MSD-V34888Matrix 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
1.10 1101.061.001.00< 0.002mg/LChromium 106 75-125 3.7 20.0
0.100 1000.0960.1000.100< 0.002mg/LLead 96.0 75-125 4.0 20.0
Page 1 of 15Date:07/10/2023 05:10 PM
Page 19 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V35083QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V35074
Associated Lab Samples: 99477, 99478
LRB-V35074 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/06/23 18:5710.01.80<1.80µg/LAcetone
07/06/23 18:570.5000.180<0.180µg/LBenzene
07/06/23 18:570.5000.210<0.210µg/LBromobenzene
07/06/23 18:571.000.420<0.420µg/LBromochloromethane
07/06/23 18:570.5000.160<0.160µg/LBromodichloromethane
07/06/23 18:575.001.50<1.50µg/LBromoform
07/06/23 18:571.000.280<0.280µg/LBromomethane
07/06/23 18:570.5000.180<0.180µg/Ln-Butylbenzene
07/06/23 18:570.5000.200<0.200µg/Lsec-Butyl benzene
07/06/23 18:572.000.920<0.920µg/Ltert-Butyl benzene
07/06/23 18:570.5000.180<0.180µg/LCarbon Tetrachloride
07/06/23 18:570.5000.190<0.190µg/LChlorobenzene
07/06/23 18:570.5000.190<0.190µg/LChlorodibromomethane
07/06/23 18:571.000.430<0.430µg/LChloroethane
07/06/23 18:570.5000.220<0.220µg/LChloroform
07/06/23 18:570.5000.220<0.220µg/LChloromethane
07/06/23 18:570.5000.200<0.200µg/L2-Chlorotoluene
07/06/23 18:570.5000.200<0.200µg/L4-Chlorotoluene
07/06/23 18:570.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE)
07/06/23 18:572.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane
07/06/23 18:570.5000.200<0.200µg/L1,2-Dibromoethane
07/06/23 18:570.5000.230<0.230µg/LDibromomethane
07/06/23 18:570.5000.220<0.220µg/L1,2-Dichlorobenzene
07/06/23 18:570.5000.190<0.190µg/L1,3-Dichlorobenzene
07/06/23 18:570.5000.210<0.210µg/L1,4-Dichlorobenzene
07/06/23 18:575.001.20<1.20µg/LDichlorodifluoromethane
07/06/23 18:570.5000.240<0.240µg/L1,1-Dichloroethane
Page 2 of 15Date:07/10/2023 05:10 PM
Page 20 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V35083QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V35074
Associated Lab Samples: 99477, 99478
LRB-V35074 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/06/23 18:570.5000.150<0.150µg/L1,2-Dichloroethane
07/06/23 18:570.5000.150<0.150µg/L1,1-Dichloroethene
07/06/23 18:570.5000.200<0.200µg/Lcis-1,2-Dichloroethene
07/06/23 18:570.5000.180<0.180µg/Ltrans-1,2-Dichloroethene
07/06/23 18:570.5000.190<0.190µg/L1,2-Dichloropropane
07/06/23 18:570.5000.130<0.130µg/L1,3-Dichloropropane
07/06/23 18:572.000.210<0.210µg/L2,2-Dichloropropane
07/06/23 18:570.5000.200<0.200µg/L1,1-Dichloropropene
07/06/23 18:570.5000.210<0.210µg/Lcis-1,3-Dichloropropene
07/06/23 18:570.5000.150<0.150µg/Ltrans-1,3-Dichloropropene
07/06/23 18:5720042.0<42.0µg/LEthanol
07/06/23 18:570.5000.170<0.170µg/LEthylbenzene
07/06/23 18:573.000.350<0.350µg/LHexachlorobutadiene
07/06/23 18:571.000.380<0.380µg/L2-Hexanone
07/06/23 18:570.5000.180<0.180µg/LIsopropylbenzene
07/06/23 18:570.5000.089<0.089µg/L4-Isopropyl toluene
07/06/23 18:575.000.710<0.710µg/LMethyl Ethyl Ketone (MEK)
07/06/23 18:571.000.140<0.140µg/LMethyl tert-butyl ether (MTBE)
07/06/23 18:571.000.078<0.078µg/L4-Methyl-2-Pentanone
07/06/23 18:572.000.330<0.330µg/LMethylene Chloride
07/06/23 18:571.000.470<0.470µg/LNaphthalene
07/06/23 18:570.5000.190<0.190µg/Ln-Propylbenzene
07/06/23 18:570.5000.220<0.220µg/LStyrene
07/06/23 18:570.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane
07/06/23 18:570.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane
07/06/23 18:570.5000.220<0.220µg/LTetrachloroethene
07/06/23 18:570.5000.220<0.220µg/LToluene
Page 3 of 15Date:07/10/2023 05:10 PM
Page 21 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V35083QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V35074
Associated Lab Samples: 99477, 99478
LRB-V35074 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/06/23 18:570.5000.380<0.380µg/L1,2,3-Trichlorobenzene
07/06/23 18:570.5000.310<0.310µg/L1,2,4-Trichlorobenzene
07/06/23 18:570.5000.160<0.160µg/L1,1,1-Trichloroethane
07/06/23 18:570.5000.096<0.096µg/L1,1,2-Trichloroethane
07/06/23 18:570.5000.180<0.180µg/LTrichloroethene
07/06/23 18:570.5000.180<0.180µg/LTrichlorofluoromethane
07/06/23 18:570.5000.270<0.270µg/L1,2,3-Trichloropropane
07/06/23 18:570.5000.190<0.190µg/L1,2,4-Trimethylbenzene
07/06/23 18:570.5000.180<0.180µg/L1,3,5-Trimethylbenzene
07/06/23 18:575.001.00<1.00µg/LVinyl Acetate
07/06/23 18:570.5000.170<0.170µg/LVinyl Chloride
07/06/23 18:570.5000.210<0.210µg/Lo-Xylene
07/06/23 18:571.000.420<0.420µg/Lm,p-Xylene
07/06/23 18:574-Bromofluorobenzene (S)92.6 70-130
07/06/23 18:57Dibromofluoromethane (S)97.8 70-130
07/06/23 18:571,2-Dichloroethane - d4 (S)94.4 70-130
07/06/23 18:57Toluene-d8 (S)95.0 70-130
LCS-V35074 LCSD-V35074Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
49.0 12311746.940.0µg/LAcetone 40-160 4.3 20.0
20.1 10198.019.620.0µg/LBenzene 70-130 2.5 20.0
18.6 93.091.518.320.0µg/LBromobenzene 70-130 1.6 20.0
19.8 99.010220.420.0µg/LBromochloromethane 70-130 2.9 20.0
19.3 96.595.519.120.0µg/LBromodichloromethane 70-130 1.0 20.0
Page 4 of 15Date:07/10/2023 05:10 PM
Page 22 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V35083QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V35074
LCS-V35074 LCSD-V35074Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
19.1 95.596.019.220.0µg/LBromoform 70-130 0.5 20.0
21.5 10810320.520.0µg/LBromomethane 60-140 4.7 20.0
19.4 97.092.018.420.0µg/Ln-Butylbenzene 70-130 5.2 20.0
18.8 94.092.518.520.0µg/Lsec-Butyl benzene 70-130 1.6 20.0
19.2 96.092.018.420.0µg/Ltert-Butyl benzene 70-130 4.2 20.0
19.9 99.592.518.520.0µg/LCarbon Tetrachloride 70-130 7.2 20.0
20.9 10510020.020.0µg/LChlorobenzene 70-130 4.4 20.0
19.0 95.093.518.720.0µg/LChlorodibromomethane 70-130 1.5 20.0
21.3 10710420.720.0µg/LChloroethane 60-140 2.8 20.0
19.8 99.097.019.420.0µg/LChloroform 70-130 2.0 20.0
17.4 87.082.516.520.0µg/LChloromethane 60-140 5.3 20.0
18.5 92.590.018.020.0µg/L2-Chlorotoluene 70-130 2.7 20.0
18.2 91.087.517.520.0µg/L4-Chlorotoluene 70-130 3.9 20.0
18.2 91.089.017.820.0µg/LDi-Isopropyl Ether (DIPE)70-130 2.2 20.0
19.8 99.010120.220.0µg/L1,2-Dibromo-3-Chloropropane 70-130 2.0 20.0
19.3 96.510220.420.0µg/L1,2-Dibromoethane 70-130 5.5 20.0
20.0 10010120.220.0µg/LDibromomethane 70-130 0.9 20.0
20.2 10198.019.620.0µg/L1,2-Dichlorobenzene 70-130 3.0 20.0
19.7 98.598.519.720.0µg/L1,3-Dichlorobenzene 70-130 0.0 20.0
20.1 10196.519.320.0µg/L1,4-Dichlorobenzene 70-130 4.0 20.0
22.7 11410721.420.0µg/LDichlorodifluoromethane 60-140 5.8 20.0
19.7 98.592.518.520.0µg/L1,1-Dichloroethane 70-130 6.2 20.0
19.0 95.095.519.120.0µg/L1,2-Dichloroethane 70-130 0.5 20.0
20.4 10294.518.920.0µg/L1,1-Dichloroethene 70-130 7.6 20.0
19.0 95.093.518.720.0µg/Lcis-1,2-Dichloroethene 70-130 1.5 20.0
19.6 98.093.518.720.0µg/Ltrans-1,2-Dichloroethene 70-130 4.6 20.0
Page 5 of 15Date:07/10/2023 05:10 PM
Page 23 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V35083QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V35074
LCS-V35074 LCSD-V35074Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
19.1 95.593.018.620.0µg/L1,2-Dichloropropane 70-130 2.6 20.0
19.4 97.093.518.720.0µg/L1,3-Dichloropropane 70-130 3.6 20.0
19.2 96.092.518.520.0µg/L2,2-Dichloropropane 70-130 3.7 20.0
21.2 10610320.520.0µg/L1,1-Dichloropropene 70-130 3.3 20.0
19.7 98.594.018.820.0µg/Lcis-1,3-Dichloropropene 70-130 4.6 20.0
18.8 94.095.019.020.0µg/Ltrans-1,3-Dichloropropene 70-130 1.0 20.0
399 79.8118591500µg/LEthanol 60-140 38.7*20.0
18.7 93.590.518.120.0µg/LEthylbenzene 70-130 3.2 20.0
20.8 10410320.520.0µg/LHexachlorobutadiene 70-130 1.4 20.0
17.2 86.089.017.820.0µg/L2-Hexanone 60-140 3.4 20.0
19.1 95.592.018.420.0µg/LIsopropylbenzene 70-130 3.7 20.0
19.9 99.596.519.320.0µg/L4-Isopropyl toluene 70-130 3.0 20.0
14.9 74.579.515.920.0µg/LMethyl Ethyl Ketone (MEK)60-140 6.4 20.0
19.9 99.599.519.920.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.0 20.0
17.3 86.583.516.720.0µg/L4-Methyl-2-Pentanone 60-140 3.5 20.0
19.3 96.593.518.720.0µg/LMethylene Chloride 70-130 3.1 20.0
16.4 82.083.016.620.0µg/LNaphthalene 70-130 1.2 20.0
18.9 94.589.517.920.0µg/Ln-Propylbenzene 70-130 5.4 20.0
20.0 10099.519.920.0µg/LStyrene 70-130 0.5 20.0
20.3 10298.519.720.0µg/L1,1,1,2-Tetrachloroethane 70-130 3.0 20.0
18.3 91.593.018.620.0µg/L1,1,2,2-Tetrachloroethane 70-130 1.6 20.0
21.4 10710120.120.0µg/LTetrachloroethene 70-130 6.2 20.0
20.0 10095.519.120.0µg/LToluene 70-130 4.6 20.0
22.5 11311122.120.0µg/L1,2,3-Trichlorobenzene 70-130 1.7 20.0
21.8 10911122.120.0µg/L1,2,4-Trichlorobenzene 70-130 1.3 20.0
20.7 10496.019.220.0µg/L1,1,1-Trichloroethane 70-130 7.5 20.0
Page 6 of 15* QC Fail Date:07/10/2023 05:10 PM
Page 24 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V35083QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V35074
LCS-V35074 LCSD-V35074Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.2 10110020.020.0µg/L1,1,2-Trichloroethane 70-130 0.9 20.0
21.6 10810320.520.0µg/LTrichloroethene 70-130 5.2 20.0
22.0 11010420.720.0µg/LTrichlorofluoromethane 60-140 6.0 20.0
19.0 95.092.518.520.0µg/L1,2,3-Trichloropropane 70-130 2.6 20.0
19.2 96.093.518.720.0µg/L1,2,4-Trimethylbenzene 70-130 2.6 20.0
19.5 97.593.518.720.0µg/L1,3,5-Trimethylbenzene 70-130 4.1 20.0
20.7 10411122.220.0µg/LVinyl Acetate 60-140 6.9 20.0
20.9 10598.519.720.0µg/LVinyl Chloride 60-140 5.9 20.0
19.4 97.094.518.920.0µg/Lo-Xylene 70-130 2.6 20.0
41.0 10310140.340.0µg/Lm,p-Xylene 70-130 1.7 20.0
92.291.24-Bromofluorobenzene (S)70-130
96.096.6Dibromofluoromethane (S)70-130
94.494.41,2-Dichloroethane - d4 (S)70-130
94.695.8Toluene-d8 (S)70-130
Page 7 of 15Date:07/10/2023 05:10 PM
Page 25 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V34997QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V34962
Associated Lab Samples: 99477
LRB-V34962 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/05/23 18:062.000.302<0.302µg/LAcenaphthene
07/05/23 18:062.000.297<0.297µg/LAcenaphthylene
07/05/23 18:062.000.836<0.836µg/LAnthracene
07/05/23 18:0610.01.32<1.32µg/LBenzidine
07/05/23 18:062.000.637<0.637µg/LBenzo(a)anthracene
07/05/23 18:062.001.02<1.02µg/LBenzo(a)pyrene
07/05/23 18:065.002.49<2.49µg/LBenzo(b)fluoranthene
07/05/23 18:065.001.01<1.01µg/LBenzo(g,h,i)perylene
07/05/23 18:065.001.99<1.99µg/LBenzo(k)fluoranthene
07/05/23 18:0610.01.10<1.10µg/LBenzoic Acid
07/05/23 18:065.000.684<0.684µg/LBenzyl alcohol
07/05/23 18:065.000.468<0.468µg/LBis(2-Chloroethoxy)methane
07/05/23 18:065.001.04<1.04µg/LBis(2-Chloroethyl)ether
07/05/23 18:065.001.08<1.08µg/LBis(2-Chloroisopropyl)ether
07/05/23 18:0610.03.46<3.46µg/LBis(2-ethylhexyl)phthalate
07/05/23 18:065.001.11<1.11µg/L4-Bromophenyl phenyl ether
07/05/23 18:065.001.83<1.83µg/LButyl benzyl phthalate
07/05/23 18:065.001.18<1.18µg/L4-Chloro-3-methylphenol
07/05/23 18:0620.07.38<7.38µg/L2-Chloronaphthalene
07/05/23 18:0610.00.938<0.938µg/L2-Chlorophenol
07/05/23 18:065.001.71<1.71µg/L4-Chlorophenyl phenyl ether
07/05/23 18:062.000.405<0.405µg/LChrysene
07/05/23 18:062.000.434<0.434µg/LDibenz(a,h)anthracene
07/05/23 18:065.000.856<0.856µg/LDibenzofuran
07/05/23 18:065.002.00<2.00µg/L1,2-Dichlorobenzene
07/05/23 18:065.002.00<2.00µg/L1,3-Dichlorobenzene
07/05/23 18:065.002.05<2.05µg/L1,4-Dichlorobenzene
Page 8 of 15Date:07/10/2023 05:10 PM
Page 26 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V34997QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V34962
Associated Lab Samples: 99477
LRB-V34962 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/05/23 18:065.001.89<1.89µg/L3,3'-Dichlorobenzidine
07/05/23 18:0610.01.46<1.46µg/L2,4-Dichlorophenol
07/05/23 18:065.000.745<0.745µg/LDiethyl phthalate
07/05/23 18:065.000.939<0.939µg/LDimethyl phthalate
07/05/23 18:0620.01.57<1.57µg/L2,4-Dimethylphenol
07/05/23 18:065.002.06<2.06µg/LDi-n-butyl phthalate
07/05/23 18:0610.02.07<2.07µg/L4,6-Dinitro-2-methylphenol
07/05/23 18:0610.01.92<1.92µg/L2,4-Dinitrophenol
07/05/23 18:065.001.11<1.11µg/L2,4-Dinitrotoluene
07/05/23 18:065.000.809<0.809µg/L2,6-Dinitrotoluene
07/05/23 18:065.001.65<1.65µg/LDi-n-Octyl Phthalate
07/05/23 18:062.000.250<0.250µg/LFluoranthene
07/05/23 18:062.000.807<0.807µg/LFluorene
07/05/23 18:065.000.979<0.979µg/LHexachlorobenzene
07/05/23 18:065.002.73<2.73µg/LHexachlorobutadiene
07/05/23 18:065.002.05<2.05µg/LHexachlorocyclopentadiene
07/05/23 18:065.001.76<1.76µg/LHexachloroethane
07/05/23 18:062.000.477<0.477µg/LIndeno(1,2,3-cd)pyrene
07/05/23 18:065.000.444<0.444µg/LIsophorone
07/05/23 18:062.001.14<1.14µg/L1-Methylnaphthalene
07/05/23 18:065.001.15<1.15µg/L2-Methylphenol
07/05/23 18:0610.00.880<0.880µg/L3&4 Methylphenol
07/05/23 18:062.000.728<0.728µg/LNaphthalene
07/05/23 18:065.000.905<0.905µg/LNitrobenzene
07/05/23 18:065.000.493<0.493µg/L2-Nitrophenol
07/05/23 18:0610.01.23<1.23µg/L4-Nitrophenol
07/05/23 18:065.001.10<1.10µg/LN-Nitrosodiphenylamine
Page 9 of 15Date:07/10/2023 05:10 PM
Page 27 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V34997QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V34962
Associated Lab Samples: 99477
LRB-V34962 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/05/23 18:065.000.641<0.641µg/LN-Nitroso-di-n-propylamine
07/05/23 18:065.001.43<1.43µg/LPentachlorophenol
07/05/23 18:062.000.428<0.428µg/LPhenanthrene
07/05/23 18:065.000.651<0.651µg/LPhenol
07/05/23 18:062.000.434<0.434µg/LPyrene
07/05/23 18:065.002.21<2.21µg/L1,2,4-Trichlorobenzene
07/05/23 18:065.001.32<1.32µg/L2,4,6-Trichlorophenol
07/05/23 18:062-Fluorobiphenyl (S)79.8 49-118
07/05/23 18:062-Fluorophenol (S)45.5 22-84
07/05/23 18:06Nitrobenzene-d5 (S)73.8 43-123
07/05/23 18:064-Terphenyl-d14 (S)88.2 49-151
07/05/23 18:062,4,6-Tribromophenol (S)73.7 31-144
07/05/23 18:06Phenol-d5 (S)26.7 10-63
LCS-V34962 LCSD-V34962Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
36.6 73.272.636.350.0µg/LAcenaphthene 47-145 0.8 20.0
36.9 73.874.037.050.0µg/LAcenaphthylene 33-145 0.2 20.0
40.9 81.882.041.050.0µg/LAnthracene 27-133 0.2 20.0
7.43 14.8*14.1*7.0850.0µg/LBenzidine 15-150 4.8 20.0
39.7 79.480.640.350.0µg/LBenzo(a)anthracene 33-143 1.5 20.0
43.3 86.685.642.850.0µg/LBenzo(a)pyrene 17-163 1.1 20.0
39.1 78.282.041.050.0µg/LBenzo(b)fluoranthene 24-159 4.7 20.0
39.4 78.879.439.750.0µg/LBenzo(g,h,i)perylene 10-219 0.7 20.0
37.9 75.881.040.550.0µg/LBenzo(k)fluoranthene 11-162 6.6 20.0
Page 10 of 15* QC Fail Date:07/10/2023 05:10 PM
Page 28 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V34997QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V34962
LCS-V34962 LCSD-V34962Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
17.4 34.829.814.950.0µg/LBenzoic Acid 10-125 15.4 20.0
35.4 70.867.833.950.0µg/LBenzyl alcohol 16-107 4.3 20.0
39.1 78.276.438.250.0µg/LBis(2-Chloroethoxy)methane 33-184 2.3 20.0
33.2 66.467.033.550.0µg/LBis(2-Chloroethyl)ether 12-158 0.8 20.0
36.2 72.470.435.250.0µg/LBis(2-Chloroisopropyl)ether 36-166 2.8 20.0
43.5 87.086.443.250.0µg/LBis(2-ethylhexyl)phthalate 10-158 0.6 20.0
39.6 79.280.240.150.0µg/L4-Bromophenyl phenyl ether 53-127 1.2 20.0
44.6 89.284.242.150.0µg/LButyl benzyl phthalate 10-152 5.7 20.0
38.5 77.076.438.250.0µg/L4-Chloro-3-methylphenol 22-147 0.7 20.0
36.6 73.273.236.650.0µg/L2-Chloronaphthalene 60-118 0.0 20.0
33.0 66.066.433.250.0µg/L2-Chlorophenol 23-134 0.6 20.0
38.2 76.478.839.450.0µg/L4-Chlorophenyl phenyl ether 25-158 3.0 20.0
39.2 78.479.839.950.0µg/LChrysene 17-168 1.7 20.0
33.8 67.666.633.350.0µg/LDibenz(a,h)anthracene 10-227 1.4 20.0
36.5 73.074.837.450.0µg/LDibenzofuran 39-114 2.4 20.0
30.7 61.461.430.750.0µg/L1,2-Dichlorobenzene 32-129 0.0 20.0
29.5 59.058.229.150.0µg/L1,3-Dichlorobenzene 20-124 1.3 20.0
29.4 58.858.829.450.0µg/L1,4-Dichlorobenzene 20-124 0.0 20.0
35.4 70.880.040.050.0µg/L3,3'-Dichlorobenzidine 10-262 12.2 20.0
37.5 75.076.038.050.0µg/L2,4-Dichlorophenol 39-135 1.3 20.0
38.9 77.879.639.850.0µg/LDiethyl phthalate 10-114 2.2 20.0
39.2 78.479.839.950.0µg/LDimethyl phthalate 10-112 1.7 20.0
48.9 97.899.449.750.0µg/L2,4-Dimethylphenol 32-119 1.6 20.0
43.6 87.286.243.150.0µg/LDi-n-butyl phthalate 10-118 1.1 20.0
40.0 80.083.241.650.0µg/L4,6-Dinitro-2-methylphenol 10-181 3.9 20.0
40.2 80.475.437.750.0µg/L2,4-Dinitrophenol 10-191 6.4 20.0
Page 11 of 15Date:07/10/2023 05:10 PM
Page 29 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V34997QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V34962
LCS-V34962 LCSD-V34962Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
40.1 80.281.240.650.0µg/L2,4-Dinitrotoluene 39-139 1.2 20.0
39.0 78.077.638.850.0µg/L2,6-Dinitrotoluene 50-158 0.5 20.0
42.0 84.085.242.650.0µg/LDi-n-Octyl Phthalate 10-146 1.4 20.0
37.6 75.274.637.350.0µg/LFluoranthene 26-137 0.8 20.0
38.4 76.877.238.650.0µg/LFluorene 59-121 0.5 20.0
38.5 77.080.640.350.0µg/LHexachlorobenzene 10-152 4.5 20.0
31.5 63.061.630.850.0µg/LHexachlorobutadiene 24-116 2.2 20.0
27.2 54.452.826.450.0µg/LHexachlorocyclopentadiene 32-117 2.9 20.0
29.2 58.458.829.450.0µg/LHexachloroethane 40-113 0.6 20.0
39.8 79.679.039.550.0µg/LIndeno(1,2,3-cd)pyrene 10-171 0.7 20.0
35.0 70.066.233.150.0µg/LIsophorone 21-196 5.5 20.0
34.0 68.067.433.750.0µg/L1-Methylnaphthalene 40-135 0.8 20.0
32.1 64.264.832.450.0µg/L2-Methylphenol 55-126 0.9 20.0
28.3 56.6*56.4*28.250.0µg/L3&4 Methylphenol 76-107 0.3 20.0
32.8 65.664.432.250.0µg/LNaphthalene 21-133 1.8 20.0
33.7 67.465.032.550.0µg/LNitrobenzene 35-180 3.6 20.0
35.9 71.871.035.550.0µg/L2-Nitrophenol 29-182 1.1 20.0
13.0 26.026.213.150.0µg/L4-Nitrophenol 10-132 0.7 20.0
48.3 96.693.846.950.0µg/LN-Nitrosodiphenylamine 69-152 2.9 20.0
37.0 74.072.436.250.0µg/LN-Nitroso-di-n-propylamine 10-230 2.1 20.0
43.0 86.088.044.050.0µg/LPentachlorophenol 14-176 2.2 20.0
39.2 78.477.638.850.0µg/LPhenanthrene 54-120 1.0 20.0
16.4 32.829.614.850.0µg/LPhenol 10-112 10.2 20.0
40.4 80.880.840.450.0µg/LPyrene 52-115 0.0 20.0
31.5 63.063.431.750.0µg/L1,2,4-Trichlorobenzene 44-142 0.6 20.0
36.8 73.676.038.050.0µg/L2,4,6-Trichlorophenol 37-144 3.2 20.0
Page 12 of 15* QC Fail Date:07/10/2023 05:10 PM
Page 30 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V34997QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V34962
LCS-V34962 LCSD-V34962Laboratory Control Sample & LCSD
LCSD
ResultParameter
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
73.475.82-Fluorobiphenyl (S)49-118
40.541.12-Fluorophenol (S)22-84
67.867.8Nitrobenzene-d5 (S)43-123
83.685.64-Terphenyl-d14 (S)49-151
66.671.22,4,6-Tribromophenol (S)31-144
24.925.1Phenol-d5 (S)10-63
Page 13 of 15Date:07/10/2023 05:10 PM
Page 31 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Massachusetts EPH
MADEP-EPH
V35026QC Analytical Batch(es):
Analysis Method:
Analysis Description:
MAEPH (Prep)
QC Prep:V34904
Associated Lab Samples: 99477
LRB-V34904 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/06/23 12:2835028.259.1µg/LAliphatic C9-C18
07/06/23 12:28500124<124µg/LAliphatic C19-C36
07/06/23 12:2825061.2<61.2µg/LAromatic C11-C22
07/06/23 12:282-Fluorobiphenyl (S)76.0 40-140
07/06/23 12:282-Bromonaphthalene (S)76.0 40-140
07/06/23 12:28Chlorooctadecane (S)52.5 40-140
07/06/23 12:28OTP Surrogate (S)64.8 40-140
LCS-V34904 LCSD-V34904Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
418 69.663.1379600µg/LAliphatic C9-C18 40-140 9.7 50.0
627 78.372.1577800µg/LAliphatic C19-C36 40-140 8.3 50.0
1580 92.990.015301700µg/LAromatic C11-C22 40-140 3.2 50.0
81.578.72-Fluorobiphenyl (S)40-140
83.578.22-Bromonaphthalene (S)40-140
54.754.6Chlorooctadecane (S)40-140
68.571.1OTP Surrogate (S)40-140
Page 14 of 15Date:07/10/2023 05:10 PM
Page 32 of 36
Quality Control Data
23-179-0028Report No:
Project Description:
Client ID:WSP USA Envi. & Infrastructure Inc.(Charlotte)
Duke Toddville Garage LSA
QC Prep Batch Method:
Massachusetts VPH
MADEP-VPH
V34876QC Analytical Batch(es):
Analysis Method:
Analysis Description:
MAVPH (Prep)
QC Prep:V34875
Associated Lab Samples: 99477
LRB-V34875 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/29/23 12:5750.011.5<11.5µg/LAliphatic C5-C8
06/29/23 12:5750.025.8<25.8µg/LAliphatic C9-C12
06/29/23 12:5750.04.02<4.02µg/LAromatic C9-C10
06/29/23 12:572,5-Dibromotoluene (FID) (S)100 70-130
06/29/23 12:572,5-Dibromotoluene (PID) (S)113 70-130
LCS-V34875 LCSD-V34875Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
267 89.089.3268300µg/LAliphatic C5-C8 70-130 0.3 50.0
339 113113338300µg/LAliphatic C9-C12 70-130 0.2 50.0
114 114116116100µg/LAromatic C9-C10 70-130 1.7 50.0
90.383.32,5-Dibromotoluene (FID) (S)70-130
97.091.12,5-Dibromotoluene (PID) (S)70-130
Page 15 of 15Date:07/10/2023 05:10 PM
Page 33 of 36
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:23-179-0028
WSP USA Envi. & Infrastructure Inc.(Charlotte)
01069
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT15 0.1C
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
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
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:06/28/2023 16:30:23
Special precautions or instructions included?
Comments:
Page 34 of 36
Page 35 of 36
Analytical Laboratory Request Form (ARF)

Pace: [e-mail]
Bottles Matrix
2 water
2 water
2 water
2 water
2 water
1 water
5 soil
5 soil
5 soil MADEP VPH
5 soil MADEP EPH
5 soil Pesticides by EPA Method 8081
5 soil

[e-mail]
Approximate Number of Days Sampling is Scheduled
SVOCs by EPA Method 8270
Program Type
2
Street Address - street address and town needed State Zip Code

Project Specifics
Duke Toddville Garage LSADuke Energy completes and sends ARF to the engineering firm and to [e-mail] Engineering Firm Completes these sections and sends ARF to one of the Duke Vendor Lab Contacts listed aboveDuke Vendor Labs & Contact
Accounting Type
Operating Unit
Additional Reports - .pdf file w/ Basic QC and EDD (spreadsheet) is Standard
Metals (Cr and Pb)
Trip Blank (for analysis of VOC by EPA Method 8260).
Notes, Special Requests, Required Contract Lab to use, etc.
IMPORTANT: Sampler, indicate above Project Name on COC.
MADEP EPH
Variables, Methods
SM 6200
NC
VOCs by EPA Method 8260
704-357-5577
Project ID
Activity ID
Account
RJ Lee Group: [e-mail]
MADEP VPH
Site, Location or Station State
Project Name
610 Toddville Rd, Charlotte
Standard
Shipping Address for Kit
2801 Yorkmont Road Ste. 100, Charlotte NC 28208

Mail Code
Chris Case/WSP
Report to (e-Mail Address 3)Report To (e-Mail Address 2)
GEL: [e-mail]
Reporting
Scheduled Sampling Date Date Sample Kit Needed
6/19/2023 6/16/2023
Sampling Information
Name Phone
0228280 (should auto-derive)
828-713-0097
[e-mail]
Accounting Fields
Waypoint: [e-mail]
Duke Energy Project Manager e-Mail AddressProject Name (Use Duke Energy site name)
Duke Toddville Garage LSA
(1) Complete all yellow sections of this form. Move through by striking the "TAB" key.
(2) Save the file & e-mail to:[e-mail]
Questions / Problems: Steve Guptill 980-875-3111 or [e-mail]
Customer Information
PCBs by EPA Method 8082
SGS: [e-mail]
Also send copy to - [e-mail]
6703
Office Phone
COPY Invoice To:
Specific Accounting
GENERAL
TVLOILUST
[e-mail]
Cell Phone
ANALYTICAL LABORATORY REQUEST FORM (ARF)
IMPORTANT: Vendor lab indicate above Project Name on COC
Duke Energy Project Manager
Chris Gilbert
Sampling Personnel / Consultant
Mike Flanik/WSP
Turn Around Time Requested
Report To (e-Mail Address 1)
EPA 625 Base / Neutrals and Acids plus 10 largest non-target peak
Page 36 of 36