26093_Dynamic Auto II_WP_Soil Assessment&Soil Gas_20230405

April 07, 2023 Carolyn Minnich North Carolina Department of Environmental Quality Division of Waste Management Brownfields Program 217 West Jones Street Raleigh, North Carolina 27603
Subject: In-Situ Soil Characterization & Soil Gas Work Plan The Foundry & The Foundry II 600 Eldridge Street Charlotte, Mecklenburg County, North Carolina Brownfields Project Nos. 17021-13-060 & 26093-22-060 Dear Ms. Minnich: ONE Environmental Group of Carolina, PLLC (ONE) is pleased to submit this In-Situ Soil
Characterization and Soil Gas Work Plan (Plan) to the North Carolina Department of Environmental Quality (NCDEQ) Division of Waste Management (DWM) Brownfields Redevelopment Section for the above-referenced site. This Plan is being submitted on behalf of the prospective developer: Mr. Welch Liles Managing Director AP Foundry, LP 1616 Camden Road, Suite 210 Charlotte, North Carolina 28203 We at ONE appreciate your review of this Plan. Should you have any questions, please do not hesitate to contact us at [phone] or by email at [e-mail]. Sincerely,
ONE Environmental Group of Carolina, PLLC
Hillary S. Goodell, PE Senior Project Manager
Enclosure
Jenny Tang Project Manager
ONE Environmental Group of Carolina, PLLC #P-0771 Engineering
www.oneenv.com
In-Situ Soil Characterization & Soil Gas
Work Plan
The Foundry & The Foundry II
Brownfields Project No.:
17021-13-060 & 26093-22-060
600 Eldridge Street
Charlotte, North Carolina
ONE Environmental Group of Carolina, PLLC
#P-0771- Engineering
April 07, 2023 Revision 3

ONE i AP Foundry, LP
TABLE OF CONTENTS
1.0 Introduction ................................................................................................................................................................. 3
1.1 Site History ........................................................................................................................................................................................ 4
1.2 Purpose................................................................................................................................................................................................ 6
2.0 Scope of Work ............................................................................................................................................................. 6
2.1 Soil ......................................................................................................................................................................................................... 6
2.2 Soil Gas and Sub-Slab Soil Gas .................................................................................................................................................. 7
2.3 Groundwater .................................................................................................................................................................................... 8
3.0 Sampling Methodology ........................................................................................................................................... 8
3.1 Soil ......................................................................................................................................................................................................... 8
3.1.1 Installation ........................................................................................................................................................................................ 8
3.1.2 Sample Collection ........................................................................................................................................................................... 9
3.2 Soil Gas and Sub-Slab Soil Gas ............................................................................................................................................... 10
3.2.1 Installation ..................................................................................................................................................................................... 10
3.2.2 Leak Check ...................................................................................................................................................................................... 11
3.2.3 Sample Collection ........................................................................................................................................................................ 11
3.3 Groundwater ................................................................................................................................................................................. 11
3.3.1 Sample Collection ........................................................................................................................................................................ 11
4.0 Laboratory Analysis ............................................................................................................................................... 12
4.1 Soil ...................................................................................................................................................................................................... 12
4.2 Soil Gas and Sub-Slab Soil Gas ............................................................................................................................................... 12
4.3 Groundwater ................................................................................................................................................................................. 12
5.0 QA/QC ........................................................................................................................................................................... 12
5.1 Soil ...................................................................................................................................................................................................... 12
5.2 Soil Gas and Sub-Slab Soil Gas ............................................................................................................................................... 13
5.3 Groundwater ................................................................................................................................................................................. 13
6.0 Investigation Derived Waste (IDW) Management .................................................................................... 13
7.0 Reporting .................................................................................................................................................................... 13

ONE ii AP Foundry, LP
TABLES
Table 1 Proposed Sample Table
FIGURES
Figure 1 Site Location Map
Figure 2 Site Map
Figure 2a Proposed Sample Location Map
Figure 3 Site Potentiometric Map
Figure 4 Site Plume Map
Figure 5 Proposed Development Map

APPENDICES
Appendix A NCDEQ Brownfields Program Minimum Requirements Checklist for Site Assessment
Work Plans and Reports (February 2022)
Appendix B Previous Environmental Tables and Figures
Appendix C Overall Grading Plan
Appendix D Subsurface Exploration and Geotechnical Engineering Evaluation

ONE 3 AP Foundry, LP
1.0 Introduction
On behalf of AP Foundry, LP (the Prospective Developer or PD), ONE Environmental Group of
Carolina, PLLC (ONE) has prepared this work plan to perform in-situ soil characterization and soil
vapor assessment activities for the proposed Foundry II Brownfields Property (Brownfields
Project No. 26093-22-060) located in Charlotte, North Carolina (600 Eldridge Street [Mecklenburg
County Parcel No. 07318313]); a portion of Mecklenburg County Parcel No. 07318201; and
Stonewall Alley (together, the “Foundry II Property”). The work plan was developed in accordance
with NCDEQ Brownfields Program Minimum Requirements Checklist for Site Assessment
Work Plans and Reports, provided as Attachment A. As discussed herein, Foundry Uptown, LLC
submitted a Brownfields property application for the Foundry II Brownfields Property on July 2,
2019 and the project was designated as “No Further Interest” on September 13, 2022. AP
Foundry, LP submitted a Brownfields Property Application for the Foundry II Brownfields
Property on December 20, 2022 and intends to continue the Brownfields process for the existing
Foundry II Brownfields Property as the new Prospective Developer. AP Foundry, LP owns Parcel
No. 07318201 and is pending contract on Parcel No. 07318313. The proposed Foundry II
Brownfields Property is located adjacent to The Foundry Brownfields Project (Brownfields
Project No. 17021-31-060) (the “Foundry Property”). A Site Location Map is provided as Figure
1.

AP Foundry, LP intends to redevelop the Foundry Property and the Foundry II Property with a
new development spanning across both properties. Currently, two (2) commercial buildings
located on the Foundry Property (623 South Cedar Street & 600 Eldridge Street) and a portion of
a third commercial building located on the Foundry II Property (619 South Cedar Street) are
present within the proposed development footprint. The remainder of the Foundry II Property
consists of undeveloped land. PD has plans to demolish portions or the entirety of these existing
structures for redevelopment of a multi-family residential, retail, restaurant, and parking use
structure. Preliminary designs include a four (4) level parking garage, ground floor retail and
restaurant space, and seven (7) upper floor residential apartments. The site development will
total approximately two (2) acres. The remaining buildings located on the Foundry Property are
currently expected to remain in-tact and are not planned for demolition or redevelopment at this
time.

Accordingly, based on site conceptual development plans and the footprint of the new
development, soil vapor assessment activities will also be performed on a portion of Parcel No.
07318201 that is currently subject to The Foundry Brownfields Agreement. The Foundry
Property currently contains four (4) buildings, some of which will remain on the Foundry
Property following redevelopment, and some of which are planned for demolition.

ONE 4 AP Foundry, LP
1.1 Site History
The Foundry II Property
The Foundry II Property was originally developed with single-family homes from at least 1877 until
the early 1970s. By 1974, all residential structures were removed and a single commercial
structure in the southern corner was developed. The structure was initially occupied by an
insulation company and then an auto-body shop, Dynamic Auto Works, from 1999 to present. The
structure is still present at the Foundry II Property and occupied by Dynamic Auto Works, but the
tenant is scheduled to vacate the structure at the end of 2022 and the building is slated for
demolition by the PD.
A North Carolina Department of Environmental Quality (NCDEQ) Division of Waste Management
(DWM) Brownfields Program Application was submitted for some of the parcels on the Foundry II
Property on July 2, 2019, by former Prospective Developer, Foundry Uptown, LLC (600 Eldridge
Street, 624 Eldridge Street, 612 Eldridge Street, 608 Eldridge Street, 605 Stonewall Street, 604
Eldridge Street, 800 South Mint Street, 600 Eldridge Street, and Crosby and Stonewall Alleyways
(no associated addresses). According to a 2018 Phase I Environmental Site Assessment (ESA)
included in the application, a chlorinated solvent release was identified at the former H.M. Wade
Furniture/textile chemical facility located adjacent and topographically up-gradient of the Foundry
II Property. The facility was suspected as being a potential source of onsite groundwater
chlorinated solvent impacts and a vapor intrusion risk to the property building. In response to the
application, NCDEQ issued a Letter of Eligibility on August 9, 2019, requesting additional
assessments. The project was assigned the name of “The Foundry II” (Brownfields Project No.
26093-22-060).
Per NCDEQ’s request, an additional site assessment was performed by Hart & Hickman in March
2020. The assessment included the collection and analysis of soil, groundwater, and sub-slab soil
gas samples across the property. Historical sampling locations are provided in Figure 2 and
Attachment B. A summary of the assessment findings is presented below:
• Soil: Volatile organic compound (VOC) detections were all below Residential and
Industrial/Commercial Preliminary Soil Remediation Goals (PSRGs). Semi-volatile organic
compound (SVOC) benzo(a)pyrene was detected in one (1) sample beneath the Site building
at an estimated concentration that exceeded the Residential PSRG but was below the
Industrial/Commercial PSRG. Hexavalent chromium was detected in two (2) samples
beneath the building that exceeded the Residential PSRG but were below the
Industrial/Commercial PSRG. When screened and calculated for vapor intrusion risks, the
results from the NCDEQ Risk Calculator indicated that the calculated cumulative risks were
below acceptable risk levels for the residential, nonresidential, and construction worker
exposure scenarios.
• Groundwater: TCE was detected in all three (3) groundwater samples (MW-1 through MW-
3) collected at the property. TCE was detected above the NCDEQ 2L Groundwater Standards
(2L Standards) in MW-2 and MW-3. When screened and calculated for vapor intrusion

ONE 5 AP Foundry, LP
risks, the concentrations of TCE in MW-2 and MW-3 exceeded Residential and
Industrial/Commercial Groundwater Screening Levels (GWSLs). TCE detections in MW-1
only exceeded Residential GWSLs. According to the NCDEQ Risk Calculator, cumulative risk
calculations for all three (3) groundwater samples indicated that concentrations were
above the acceptable risk level for residential and non-residential exposure scenarios in
MW-2 and MW-3.
• Sub-slab Soil Gas: Three (3) sub-slab soil gas vapor points were installed and sampled
beneath the building. The laboratory analytical results indicated the presence of several
compounds; however, no compounds were detected at concentrations exceeding the
Residential or Non-Residential Soil Gas Screening Levels (SGSLs). Results from the NCDEQ
Risk Calculator analysis indicated that calculated cumulative risks were below acceptable
risk levels for residential, nonresidential, and construction worker exposure scenarios.
In November 2020, A Site Operations Plan (SOP) was submitted to NCDEQ to allow for tenant
Dynamic Auto Works to continue operating at the site. The SOP was approved by NCDEQ in a letter
dated January 12, 2021. A follow-up SOP inspection was performed at the site on July 8, 2021,
which concluded Dynamic Auto Works had been compliant with their SOP.
On September 1, 2022, Foundry Uptown, LLC submitted a request to withdraw its Brownfields
application. DEQ approved the request by letter dated September 13, 2022. AP Foundry, LP
submitted a Brownfields Property Application for the Foundry II Property on December 20, 2022.
The Foundry Property (Brownfields Project No. 17021-13-060)
As discussed above, the Foundry Property, consisting of a portion of Parcel No. 07318201, is subject
to The Foundry Brownfields Agreement (Brownfields Program Project No. 17021-13-060).
According to the Brownfields Agreement (BFA), this area was historically occupied by
environmentally sensitive operations including a tin shop, wastepaper warehouse, and a foundry
from the early 1920's until 1984. The buildings have since been occupied by offices, retail shops,
and restaurants.
The acceptance of this property into the Brownfields Program (through a NCDEQ-issued Letter of
Eligibility) occurred on June 24, 2015 and was based on the results of environmental
assessments completed between 2012 and 2014. Historical sampling locations are provided in
Figure 2 and Attachment B. A summary of the assessment findings is provided below:
• Petroleum compounds were detected in one (1) area of soil and in groundwater at
concentrations above unrestricted use standards. The contaminants are suspected to be
attributed to historical onsite operations. The one (1) identified area of contaminated soil
(GP-2) was left in place based on the presence of a cap (asphalt hardscape) and its vicinity
to the foundation of a site structure. The risk of direct contact between occupants and the
contaminated soil was minimal.

ONE 6 AP Foundry, LP
• Chlorinated solvent compounds were detected in groundwater which appeared to be the
result of offsite migration. No potential source areas were indicated by numerous soil
samples collected throughout the site.
• Vapor intrusion assessments consisting of the collection of sub-slab soil gas samples in each
building identified one (1) area underneath building address 619 South Cedar Street that
had trichloroethylene (TCE) concentrations that exceeded commercial screening levels.
• Three (3) indoor air samples were collected from inside the 619 South Cedar Street
building. The results reported no detections of any compound above the laboratory
reporting limit. No exceedances of the acceptable cumulative risk levels were identified.
1.2 Purpose
This work plan describes proposed activities for in-situ soil characterization and further
assessment of vapor intrusion impacts within the new development footprint. A summary of the
proposed scope of work is presented below in Section 2.0.
2.0 Scope of Work
2.1 Soil
The proposed building footprint is expected to span across the Foundry Property and the Foundry
II Property. AP Foundry, LP intends to manage construction activities for the redevelopment
pursuant to an NCDEQ-approved Environmental Management Plan that is applicable to both the
Foundry Property (covered by the existing Foundry Brownfields Agreement) and the Foundry II
Property (ultimately to be covered by the future Foundry II Brownfields Agreement). To expedite
grading activities and minimize the need to stockpile and manage large volumes of soil during
construction, ONE proposes to conduct in situ soil assessment activities to characterize soil and
determine proper soil disposal before grading activities at the site begin.

Grading plans indicate that work associated with the proposed redevelopment will generate
approximately 50,250 cubic yards of soil that will need to be transported off-site as export. A copy
of the Overall Grading Plan is provided as Appendix C. Geotechnical soil testing was conducted to
determine bedrock and groundwater elevations. A copy of the Subsurface Exploration and
Geotechnical Engineering Evaluation is provided as Appendix D. Cut in areas of the site are
proposed to extend up to 20 feet below ground surface (ft bgs) with bedrock anticipated to be
encountered at depths beyond 20 ft bgs. Auger refusal was documented to occur between four (4)
and 30 ft bgs across the site.
ONE divided the site into 13 in-situ soil characterization sections (denoted by “EX” nomenclature)
based on proposed excavation areas, cut depths, and anticipated bedrock across the site. Prior to
conducting field activities, ONE will contact the North Carolina 811 public utility locator service to
mark sub-grade utilities at the site. ONE will also contract a private utility locator to mark sub-
grade utilities at the site. A drilling contractor will advance three (3) to five (5) soil borings within

ONE 7 AP Foundry, LP
each section, advancing a total of 43 soil borings across the site. Proposed in-situ soil
characterization sections (EX-1 through EX-13) and aliquot soil boring locations for each
characterization section are shown in Figure 2a. In addition, a Proposed Sample Table is included
as Table 1.
A total of 49 grab and 49 composite soil samples will be collected per NCDEQ Brownfields guidance
of one (1) soil sample per 1,000 cubic yards of soil export. Each sample will be representative of soil
from 0-2 ft bgs, 2-5 ft bgs, 5-10 ft bgs, and 10-20 ft bgs, where applicable. Soil cores from each
borehole will be split in half longitudinally and the soils evenly divided into two (2) sealed plastic
bags per sample interval. The first sealed plastic bag will be placed on ice within a cooler. The
second sealed plastic bag will be allowed to volatilize for approximately five (5) minutes. After
approximately five (5) minutes, the volatilized bag will be screened using a PID. Grab soil samples
will be collected from the bag stored on ice corresponding to the highest PID reading and analyzed
for volatile organic compounds (VOCs) by EPA Method 8260.
After collecting the grab sample, the bags stored on ice will be homogenized per sample depth
interval within each soil characterization section. Composite samples will be collected from the
homogenized soil and analyzed for semi-volatile organic compounds (SVOCs) by EPA Method 8270
and Resource Conservation and Recovery Act (RCRA) metals plus hexavalent chromium by EPA
Methods 6020/7471/7199.
In addition to the soil characterization section samples, two (2) soil borings will be advanced within
and/or near the former Dynamic Auto Works building to evaluate for impact by the former auto
repair facility. One (1) shallow soil sample of 0-2 ft bgs will be collected from both boring locations.
2.2 Soil Gas and Sub-Slab Soil Gas
Based on the site history of the Foundry Property and the Foundry II Property, prior assessments
completed at both sites, and the new redevelopment plans, an additional assessment of vapor
intrusion risks appears warranted within the new development footprint. Groundwater analytical
results have reported chlorinated solvent impacts (primarily TCE) across the site and at
concentrations that exceed GWSLs. A map depicting historical sampling locations is included as
Figure 2. Historical groundwater readings were used to create an inferred Site Potentiometric Map
provided as Figure 3. Groundwater is depicted as flowing generally towards the northwest. A Site
Plume Map depicting TCE concentrations in groundwater is provided as Figure 4.
To evaluate vapor intrusion risks, the installation and sampling of 17 temporary soil gas sample
points (SG-1 though SG-17) are proposed across the footprint of the new development on the
Foundry Property and the Foundry II Property. In addition, the installation and sampling of four
(4) temporary sub-slab soil gas sample points (SS-1 through SS-4) are proposed with the existing
structures. Samples will be collected in the area of every planned stairwell, elevator, ground floor
tenant space, and in the garage. In locations of multimedia sampling, soil gas sample points will be
installed after soil samples have been collected from the borehole. A Proposed Sample Location

ONE 8 AP Foundry, LP
Map depicting redevelopment plans overlain with the proposed sampling points is provided as
Figure 2a.
The soil gas sample points will be installed and collected in the vadose zone at approximately three
(3) feet above the estimated depth to groundwater and to a minimum of six (6) feet below ground
surface (bgs). The sub-slab soil gas points will be installed and collected six (6) inches beneath the
slab. All samples will be analyzed for VOCs by EPA Method TO-15. A Proposed Sample Table is
included as Table 1.
2.3 Groundwater
Groundwater analytical results have reported chlorinated solvent impacts (primarily TCE) across
the site and at concentrations that exceed GWSLs. A map depicting historical sampling locations is
included as Figure 2. Historical groundwater readings were used to create an inferred Site
Potentiometric Map provided as Figure 3. Groundwater is depicted as flowing generally towards
the northwest. A Site Plume Map depicting TCE concentrations in groundwater is provided as
Figure 4.
Groundwater samples will be collected from three (3) preexisting monitoring wells located onsite
to evaluate for changes in contaminant concentrations. In addition, two (2) potentially existing
groundwater wells (TW-3 and MW-4) were identified by the Brownfields Program during a site
inspection on February 28, 2023. Their conditions are unknown, and they will be inspected and
evaluated for potential groundwater sampling capabilities during the event. If determined as
feasible, one (1) groundwater sample will be collected from each well.
Groundwater samples will be analyzed for volatile organic compounds (VOCs) by EPA Method
8260, semi-volatile organic compounds (SVOCs) by EPA Method 8270 and Resource Conservation
and Recovery Act (RCRA) metals plus hexavalent chromium by EPA Methods 6020/7471/SM-
3500CrB. A Proposed Sample Table is included as Table 1.
3.0 Sampling Methodology
3.1 Soil
The proposed assessment activities will be performed in general accordance with DEQ
Inactive Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup (Guidelines) dated
July 2021, the most recent versions of the U.S. Environmental Protection Agency (EPA) Region IV
Laboratory Services and Applied Science Division (LSASD) Field Branches Quality System and
Technical Procedures guidance.
3.1.1 Installation
ONE will team with a qualified drilling contractor to advance three (3) to five (5) soil borings in
each soil characterization section to depths corresponding to the deepest planned cut in that
section, or until auger refusal. The drilling contractor will advance each soil boring with a track-

ONE 9 AP Foundry, LP
mounted direct push technology (DPT) drill rig. During boring advancement, continuous soil
samples will be collected from each boring from acetate lined macrocore sleeves, logged for
lithologic description, visually and olfactorily inspected for indications of potential impacts, and
screened for the presence of volatile organic vapors with a calibrated photoionization detector
(PID). Soil boring locations will be logged using a hand-held global positioning system (GPS) unit.
The exterior shallow soil sample near the former Dynamic Auto Works shop will be collected using
a decontaminated stainless-steel hand auger. The location of the interior shallow soil sample will
be selected and advanced using a rotary hammer drill or concrete core drill. The decontaminated
stainless-steel hand auger will be used to retrieve soils.
3.1.2 Sample Collection
Soil samples within each soil characterization section will be selected for laboratory analyses and
composited as described below:
Proposed Cut Area EX-1
Excavations in this area are anticipated to extend 10 ft. Three (3) soil borings will be advanced to a
depth of 10 ft, and continuous soil sample aliquots will be collected at intervals 0-2 ft, 2-5 ft, and 5-
10 ft. Soil sample aliquots from each boring will be sampled via grab method, then homogenized to
form a composite soil sample representative of soil from each interval for a total of three (3) grab
samples and three (3) composite samples.

Proposed Cut Area EX-2 through EX-8
Excavations in these areas are anticipated to extend 20 ft. For each area, three (3) soil borings will
be advanced to a depth of 20 ft, and continuous soil sample aliquots will be collected at intervals 0-
2 ft, 2-5 ft, and 5-10 ft, and 10-20 ft. Soil sample aliquots from each boring will be sampled via grab
method, then homogenized to form a composite soil sample representative of soil from each
interval for a total of four (4) grab samples and four (4) composite samples.

Proposed Cut Area EX-9 and EX-10
Excavations in these areas are anticipated to extend 10 ft. For each area, five (5) soil borings will be
advanced to a depth of 10 ft, and continuous soil sample aliquots will be collected at intervals 0-2 ft,
2-5 ft, and 5-10 ft. Soil sample aliquots from each boring will be sampled via grab method, then
homogenized to form a composite soil sample representative of soil from each interval for a total of
three (3) grab samples and three (3) composite samples.

Proposed Cut Area EX-11 through EX-13
Excavations in these areas are anticipated to extend 20 ft. For each area, three (3) soil borings will
be advanced to a depth of 20 ft, and continuous soil sample aliquots will be collected at intervals 0-
2 ft, 2-5 ft, and 5-10 ft, and 10-20 ft. Soil sample aliquots from each boring will be sampled via grab
method, then homogenized to form a composite soil sample representative of soil from each
interval for a total of four (4) grab samples and four (4) composite samples.

ONE 10 AP Foundry, LP
The soil samples will be collected directly into dedicated laboratory supplied sample containers,
labeled with the date, time, and sample identification, and placed in a laboratory supplied sample
cooler with ice. Following sampling activities, the soil borings will be properly abandoned by filling
each borehole with their original soil cuttings, unless the boring location is designated as a soil gas
sample location.
3.2 Soil Gas and Sub-Slab Soil Gas
The proposed assessment activities at the Site will be performed in accordance with the NCDEQ
Brownfields Program Minimum Requirements Checklist for Site Assessment Work Plans and Reports
dated February 2022 and the NCDEQ Division of Waste Management (DWM) Vapor Intrusion
Guidance dated March 2018.
3.2.1 Installation

Soil Gas
Following soil sampling activities, 17 existing boreholes will be used for the installation of soil gas
sampling points. If required, boreholes will be further advanced using direct push technology (DPT)
methods. Terminal depth of soil gas sampling boreholes will extend into the vadose zone
approximately three (3) feet above the estimated depth to groundwater and to a minimum of six
(6) ft bgs.
Once the sampling boreholes have been created, a vapor implant constructed of stainless-steel
screen will be fitted with 1/8” Nylaflow tubing and advanced within the borehole. Clean quartz
sand will be placed around the annular space of the implant and extended to approximately six
inches above the top of the implant. The sampling points will be completed by placing hydrated
bentonite from the top of the filter sand to approximately one (1) to two (2) ft bgs. A minimum of
24 hours for equilibrium will be allowed before sampling.
Sub-slab Soil Gas
Four (4) sub-slab soil gas samples will be collected at the site. A rotary hammer drill will be used
to penetrate the entire thickness of the structure’s concrete slab. Once the concrete has been
penetrated, the borehole will be advanced six (6) inches beneath the slab. The drill bit will be
removed from the subsurface and a series of brushes will be used to remove any concrete dust from
the borehole prior to installation of the sub-slab implant.
The sub-slab implant will be installed in the open borehole created by the hammer drill. The
implant will consist of an airstone that is connected to Nylaflow tubing. The implant will be placed
six (6) inches beneath the slab. Clean quartz sand will be placed around the annular space of the
implant. Two (2) inches of dry granular bentonite will be placed directly on top of the quartz sand.
Additional granular bentonite (hydrated in 2” lifts) will be added to ensure the entire thickness of
the concrete slab is sealed with an impervious material (to prevent anything sorbed into the
concrete from entering the sub-slab sample or any radial cracks in the concrete form diluting the
sample). A minimum of 24 hours for equilibrium will be allowed before sampling.
ONE 11 AP Foundry, LP
3.2.2 Leak Check
Prior to sampling, a leak check test will be performed at each location by constructing a shroud
around the entire sample train and flooding the area within the shroud with helium gas. Using a
syringe, a sample will be collected from the gas in the shroud into a Tedlar® bag and analyzed for
helium concentrations using a helium gas detector. Vapor from the monitoring points will be
purged and sampled outside of the shroud into a separate Tedlar® bag and analyzed using the
helium gas detector to ensure that helium concentrations are less than 10% of the concentration
measured within the shroud.
3.2.3 Sample Collection
Following a successful field leak check, the soil gas and sub-slab soil gas samples will be collected
into 400 mL batch certified Summa canisters for laboratory analysis. Each summa canister will be
connected with an appropriate flow control/vacuum gauge which will then be connected to the soil
vapor sample collection apparatus that includes an inline purge device. The flow control flow rate
shall not exceed 200 mL/min. A minimum of three (3) volumes of the annular space plus the tubing
volume will be calculated and purged using the inline purge device.
A vacuum test on the summa canister and associated flow control device will be performed to
ensure no ambient air is drawn during the sample collection. Once completed, the summa canister
will be “opened” to allow for sample collection. The vacuum pressure in each Summa canister upon
completion of the sampling event will be between three (3) and six (6) inches of mercury (in Hg).
The final received vacuum pressure for each Summa canister will be reported by the laboratory.
Following sampling activities, the soil gas sample points will be properly abandoned by filling each
borehole with their original soil cuttings and topped with bentonite to the surface.
3.3 Groundwater
The proposed groundwater sampling activities will be performed in accordance with the USEPA
Low Stress (Low Flow) Purging and Sampling Procedure for the Collection of Groundwater Samples
from Monitoring Wells, dated September 2017 and the NCDEQ Guidelines for Sampling (December
2008).
3.3.1 Sample Collection
Groundwater samples will be collected from preexisting monitoring wells located on site. Prior to
sample collection, depth to groundwater measurement will be collected using an interface probe
capable of measuring liquid phase hydrocarbon (LPH) within 0.01 feet. Dedicated polyethylene
tubing will be used for well purging and sample collection. A submersible pump will be thoroughly
decontaminated prior to being lowered into each well. Three (3) well volumes will be purged from
the well prior to sample collection. Samples will be collected upon a visual reduction of turbidity.
Wells will be sampled using low flow sampling method, as outlined in the USEPA guidance, with a
flow rate not to exceed 400 mL/minute. Groundwater samples will be collected into clean,
laboratory supplied bottleware.
ONE 12 AP Foundry, LP
4.0 Laboratory Analysis
4.1 Soil
Soil samples will be submitted to a North Carolina certified laboratory under standard chain of
custody protocols for analysis of volatile organic compounds (VOCs) by EPA Method 8260, semi-
volatile organic compounds (SVOCs) by EPA Method 8270 and Resource Conservation and
Recovery Act (RCRA) metals plus hexavalent chromium by EPA Methods 6020/7471/7199.
Reporting Limits/Method Detection Limits will meet applicable screening criteria (to the extent
feasible). Reports will also include J-Flags to meet criteria. A Level II quality assurance/quality
control (QA/QC) data package will be requested from the laboratory.
4.2 Soil Gas and Sub-Slab Soil Gas
Upon completion of sample collection, the air flow regulator will be removed from the Summa
canister and the samples will be submitted to a nationally accredited laboratory under standard
chain of custody protocols for analysis of full list VOCs by EPA Method TO-15. The laboratory will
be requested to report the vacuum pressure of the canister upon receipt. Reporting Limits/Method
Detection Limits will meet applicable screening criteria (to the extent feasible). Reports will also
include J-Flags to meet criteria. A Level II quality assurance/quality control (QA/QC) data package
will be requested from the laboratory.
4.3 Groundwater
Groundwater samples will be submitted to a North Carolina certified laboratory under standard
chain of custody protocols for analysis of VOCs by EPA Method 8260, SVOCs by EPA Method 8270
and RCRA lab filtered metals plus hexavalent chromium by EPA Methods 6020/7471/SM-3500CrB.
Reporting Limits/Method Detection Limits will meet applicable screening criteria (to the extent
feasible). Reports will also include J-Flags to meet criteria. A Level II quality assurance/quality
control (QA/QC) data package will be requested from the laboratory.
5.0 QA/QC
5.1 Soil
For field and laboratory QA/QC purposes, one (1) duplicate soil sample will be collected per 20 soil
samples. Based on the anticipated number of soil samples, an estimated two (2) duplicate soil
samples will be collected. The duplicate samples will be analyzed for the same compounds as the
parent sample. One (1) trip blank per cooler containing VOC analysis samples will be submitted for
analysis of VOCs by EPA Method 8260. Samples will be delivered to a North Carolina accredited
laboratory under standard chain of custody protocols.

ONE 13 AP Foundry, LP
5.2 Soil Gas and Sub-Slab Soil Gas
For field and laboratory QA/QC purposes, one (1) duplicate soil gas and one (1) duplicate sub-slab
soil gas sample will be collected. A T-manifold will be constructed for simultaneous sample
collection. The duplicate sample will be analyzed for the same compounds as the parent sample.
Samples will be delivered to a nationally accredited laboratory under standard chain of custody
protocols.
5.3 Groundwater
For field and laboratory QA/QC purposes, one (1) duplicate groundwater sample will be collected.
The duplicate sample will be analyzed for the same compounds as the parent sample. One (1) trip
blank per cooler containing VOC analysis samples will be submitted for analysis of VOCs by EPA
Method 8260. Samples will be delivered to a nationally accredited laboratory under standard chain
of custody protocols.
6.0 Investigation Derived Waste (IDW) Management
Investigation derived waste (IDW) soil generated during the assessment activities will be returned
to the area of the original borehole and spread evenly across unpaved areas at the site unless field
observations such as staining or free product indicate that soil should be containerized and
sampled. IDW purge water generated during groundwater sampling will be containerized, sampled
for characterization, and disposed of at a proper disposal facility.
7.0 Reporting
Upon completion of the field activities and receipt of the analytical data, a report will be prepared
describing the methods and results of the assessment activities. The report will include a
description of all field activities, explanation of any deviations from the approved work plan, a
tabular summary of the analytical results in comparison to regulatory screening levels, risk
calculation results, a figure depicting the sample locations, laboratory analytical reports, field notes,
boring logs, abandonment records, and a summary of findings.
The report will include the firm’s PE/PG license number and an individual PE/PG seal and
signature.

Table 1 Proposed Sample Table

Table 1Proposed Sample Table
The Foundry and The Foundry II
600 Eldridge Street
Charlotte, North Carolina
Sample Objective
Anticipated Soil
Excavation
(cu yd)
Sample Quantity /
Media
Excavation Depth
(ft bgs)
Composite Soil
Sample Intervals
(ft bgs)
Soil Gas and Sub-
Slab Soil Gas
Sample Depth
(ft bgs)
NA 4 Sub Slab Soil Gas 6 inches beneath slab
NA 1 Soil Gas
EX-1 (interval)SG-2 2,250 1 Soil Gas
3 Soil 10 0-2, 2-5, 5-10
EX-2 (interval)SG-3 4,250 1 Soil Gas
4 Soil
EX-3 (interval)SG-4 and SG-5 4,250 2 Soil Gas
4 Soil
EX-4 (interval)SG-6 4,250 1 Soil Gas
4 Soil
EX-5 (interval)SG-7 4,500 1 Soil Gas4 Soil
EX-6 (interval)NA 4,000 4 Soil
EX-7 (interval)SG-8 4,000 1 Soil Gas4 Soil
EX-8 (interval)SG-9 4,000 1 Soil Gas4 Soil
EX-9 (interval)SG-10 and SG-11 3,000 2 Soil Gas
3 Soil
EX-10 (interval)SG-12 and SG-13 2,250 2 Soil Gas
3 Soil
EX-11 (interval)SG-14 4,500 1 Soil Gas
4 Soil
EX-12 (interval)SG-15 and SG-16 4,500 2 Soil Gas
4 Soil
EX-13 (interval)SG-17 4,500 1 Soil Gas
4 Soil
NA 2 Shallow Soil 0 0-2 NA
NA 5 Groundwater
Waste Characterization NA 1 IDW
NA 1 Soil Gas
NA 1 Sub-Slab Soil Gas
NA 2 Soil
NA 1 Groundwater
NA Quantity TBD
Laboratory supplied
Notes:
All soil gas and sub-slab soil gas samples will be analyzed for VOCs (TO-15).All soil and groundwater water samples will be analyzed for VOCs (8260), SVOCs (8270), RCRA metals (6020/7471), hexavalent chromium (7199/SM-3500CrB).
Waste Characterization and Trip Blank samples will be analyzed for VOCs (8260).
All depths and volumes are approximiateVOCs = Volatile Organic Compounds
SVOCs = Semi-Volatile Organic CompoundsRCRA = Resource Conservation and Recovery Act
ft bgs = Feet below ground surface
cu yd = Cubic yardsNA = Not Applicable
IDW= Investigation Derived WasteQA/QC = Quality Assurance / Quality Control
SS-DUP1
MW-DUP1
Sample ID
0
20
10
20
NA
QA/QC
SG-DUP1
Trip Blank
SB-DUP1 thru SB-DUP2
Soil characterization for
disposal (EX)
Soil characterization post occupancy (SB)
Future occupant protection (SG, SS,
MW)
SB-1 and SB-2
SS-1 thru SS-4
IDW-1
SG-1
MW-1 thru MW-4, TMW-3
3 ft above water table or
minimum 6 ft bgs
0-2, 2-5, 5-10, 10-20
0-2, 2-5, 5-10, 10-20
0-2, 2-5, 5-10
NA
ONE 1 of 1 AP Foundry, LP

Figures
• Figure 1 – Site Location Map
• Figure 2 – Site Map
• Figure 2a – Proposed Sample Location Map
• Figure 3 – Site Potentiometric Map
• Figure 4 – Site Plume Map
• Figure 5 – Proposed Development Map
Site
0 6,0003,000 Feet
^_
Figure 1Site Location Map ±Property Boundary
600 Eldridge Street Charlotte, North Carolina
ProjectManager:JPT
Drawn By:EJK
CheckedBy:JPT
")")
")
")
")
")
")
")
")
")
")
")")
")")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
!(
!(
!(
!(
!(
!(!(
!<(!<(
!(!(
!<(
!<(
!(!(
!<(
!(
!(
!<(
!(!<(
!(
!(
!(
!(
!(
!<(
!(
!(
!(!(
!<(!(!<(
!(
!(
!(
!<(
!(
!<(!(
!(
!<(
!(
!<(
!(
!<(
!<(
!<(
!(
!(
!(
!(
!(
Parcel # 07318201
Parcel # 07318313
No Parcel ID
Eldridge StWarner StMor
r
i
s

S
t S Cedar StW
H
i
l
l

S
t
SS-1
SS-2
SG-1
SS-3
C
MW-4B
SG-2/A SG-3/A
CB
SG-5/A
SG-4/B
C B
SG-17/A
C
TW-3
SG-6/A
C SG-7/A
B
B
C
A
SB-2
SS-4/SB-1
MW-1
B
C
B
SG-9/ACSG-16/B
C
B
MW-3
SG-15/A
C
SG-14/A B
C
SG-10/A
C
SG-13/B
C
SG-12/A
SG-11/B
SG-8/A
MW-2
D
D
E
E
GP-1GP-2
GP-3
GP-4
GP-5
GP-6
GP-7
GP-8
TW-1
TW-2
TW-3
SSV-6 SSV-14
SSV-13
SSV-15
SSV-16
SSV-2
SSV-12
SSV-11
SSV-3
SSV-9
SSV-10
SSV-1
SSV-7
SSV-8
Air-4
Air-1
Air-2
Air-3
SB-1
SB-2
SB-3
SB-4
SB-5
SB-6
SB-7
SB-8
SB-9
SSVP-1
SSVP-2
SSVP-3
0 200100Feet
^_
Figure 2Site Map ±!(Groundwater Sample
!(Soil Gas Sample
!(Soil Sample
!(Sub-Slab Soil Gas Sample
!<(Soil Gas & Soil Sample
!<(Sub-Slab Soil Gas & Soil Sample
")Historical Air Sample
")Historical Groundwater Sample
")Historical Soil Sample
")Historical Soil/Groundwater Sample
")Historical Sub-Slab Vapor SampleGP-2 Area of Concern (2012)Brownfields Property ID: 17021-13-060Provisional Brownfields Property ID: 23042-19-060Property BoundaryExisting Building
600 Eldridge StreetCharlotte, North Carolina
ProjectManager:JPT
DrawnBy:EJK
CheckedBy:JPT
!(
!(
!(!(
!(!(!(
!<(!<(
!(!(!<(
!<(
!(!(
!<(
!(!(
!<(
!(!<(
!(
!(
!(
!(
!(
!<(
!(
!(
!(!(
!<(!(!<(
!(
!(
!(
!<(
!(
!<(!(
!(!<(
!(
!<(
!(
!<(
!<(
!<(
!(
!(
!(
!(
!(SS-1
SS-2
SG-1 SS-3
CMW-4BSG-2/A SG-3/A
CB SG-5/A
SG-4/B
C
B
SG-17/A
C
TW-3 SG-6/A
C SG-7/A
B
B
C
A
SB-2
SS-4/SB-1MW-1
B
C B SG-9/ACSG-16/B
C
B
MW-3
SG-15/A CSG-14/A B
C SG-10/A
C
SG-13/BC
SG-12/A
SG-11/B
SG-8/A
MW-2
D D
EEEX-9
EX-1
EX-2
EX-3
EX-5
EX-4
EX-10
EX-11
EX-13
EX-12 EX-8
EX-6
EX-7
0 200100Feet
^_
±
!(Groundwater Sample
!(Soil Gas Sample
!(Soil Sample
!(Sub-Slab Soil Gas Sample
!<(Soil Gas & Soil Sample
!<(Sub-Slab Soil Gas & Soil SampleGP-2 Area of Concern (2012)Interior Development
Excavation ZoneElevatorStairsBuilding FootprintProperty BoundaryApproximate Excavation Depth (ft)1020
Figure 2aProposed Sample Location Map
600 Eldridge StreetCharlotte, North Carolina
ProjectManager:JT
DrawnBy:EJK
CheckedBy:__
Garage51,701 SF
Leasing/Lobby5,107 SF
BOH
Retail17,440 SF
Retail2,859 SF
Restaurant7,820 SF
Eldridge StWarner StMor
r
i
s

S
t S Cedar StW
H
i
l
l

S
t
Ge
n
e
r
a
l

G
r
o
u
n
d
w
a
t
e
r

F
l
o
w

D
i
r
e
c
t
i
o
n
GP-1
*18-20 ft(2012)
GP-2
*18-20 ft(2012)
GP-3
*18-20 ft(2012)
GP-4
*18-20 ft(2012)
TW-1
10.79 ft(2013)
TW-2
11.00 ft(2013)
TW-3
27.88 ft(2013)
MW-1
25.03 ft(2020)
MW-3
28.10 ft(2020)
MW-2
21.45 ft(2020)
0 200100Feet
Notes:GP-1 - GP-4 *Reported as "18 to 20 feet"
Figure 3Site Potentiometric Map
Historical Monitoring Well LocationExisting BuildingExisting Building to be DemoedProposed BuildingProposed Development Plan
ElevatorStairsProperty Boundary
ProjectManager:JPT
DrawnBy:EJK
CheckedBy:JPT
600 Eldridge Street Charlotte, North Carolina
Garage51,701 SF
Leasing/Lobby5,107 SF
BOH
Retail17,440 SF
Retail2,859 SF
Restaurant7,820 SF
Eldridge StWarner StMor
r
i
s

S
t S Cedar StW
H
i
l
l

S
t
GP-1
BRL µg/L(2012)
GP-2
43 µg/L(2012)
GP-3
130 µg/L(2012)
GP-4
72 µg/L(2012)
TW-1
3.5 µg/L(2013)
TW-2
160 µg/L(2013)
TW-3
18 µg/L(2013)
MW-1
1.1 µg/L(2020)
MW-3
16 µg/L(2020)
MW-2
22 µg/L(2020)
0 200100Feet
Notes:TCE - Trichloroethyleneµg/L - micrograms per literBRL - Below Reporting LimitVISL- Vapor Intrusion Screening LevelResidential VISL = 1.0 ug/LNon-Residential VISL = 4.4 ug/L
Figure 4Site Plume Map - TCE in Groundwater
Historical Monitoring Well LocationExisting BuildingExisting Building to be DemoedProposed BuildingProposed Development PlanElevatorStairs
ProjectManager:JPT
DrawnBy:EJK
CheckedBy:JPT
TCE Concentrations (µg/L)0.0 - 1.0
1.1 - 2.0
2.1 - 3.0
3.1 - 4.0
4.1 - 5.0
5.1 - 10.0
10.1 - 20.0
20.1 - 30.0
30.1 - 40.0
40.1 - 60.0
60.1 - 80.0
80.1 - 100.0
100.1 - 120.0
120.1 - 140.0
140.1 - 160.0
600 Eldridge Street Charlotte, North Carolina
")")
")
")
")
")
")
")
")
")
")
")")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
")
!(
!(
!(
!(
!(
!(!(
!<(!<(
!(!(
!<(
!<(
!(!(
!<(
!(
!(
!<(
!(!<(
!(
!(
!(
!(
!(
!<(
!(
!(
!(!(
!<(!(!<(
!(
!(
!(
!<(
!(
!<(!(
!(
!<(
!(
!<(
!(
!<(
!<(
!<(
!(
!(
!(
!(
!(
Restaurant
7,820 SF
Retail
2,859 SFRetail
17,440 SF
BOH
Leasing/Lobby
5,107 SF
Garage
51,701 SF
SS-1
SS-2
SG-1
SS-3
C
MW-4B
SG-2/A SG-3/A
CB
SG-5/A
SG-4/B
C B
SG-17/A
C
TW-3
SG-6/A
C SG-7/A
B
B
C
A
SB-2
SS-4/SB-1
MW-1
B
C B
SG-9/ACSG-16/B
C
B
MW-3
SG-15/A
C
SG-14/A B
C
SG-10/A
C
SG-13/B
C
SG-12/A
SG-11/B
SG-8/A
MW-2
D
D
E
E
GP-1GP-2
GP-3
GP-4
GP-5
GP-6
GP-7
GP-8
TW-1
TW-2
TW-3
SSV-6 SSV-14
SSV-13
SSV-15
SSV-16
SSV-2
SSV-12
SSV-11
SSV-3
SSV-9
SSV-10
SSV-1
SSV-7
SSV-8
Air-4
Air-1
Air-2
Air-3
MW-1
MW-3
MW-2
SB-1
SB-2
SB-3
SB-4
SB-5
SB-6
SB-7
SB-8
SB-9
SSVP-1
SSVP-2
SSVP-3
0 200100Feet
^_
Figure 5Proposed Development Map ±!(Groundwater Sample
!(Soil Gas Sample
!(Soil Sample
!(Sub-Slab Soil Gas Sample
!<(Soil Gas & Soil Sample
!<(Sub-Slab Soil Gas & Soil Sample
")Historical Air Sample
")Historical Soil Sample
")Historical Soil/Groundwater Sample
")Historical Sub-Slab Vapor Sample
Existing BuildingExisting Building to be DemoedProposed Development PlanBuilding FootprintElevatorStairsGP-2 Area of Concern (2012)Property BoundaryBrownfields Property ID: 17021-13-060Provisional Brownfields Property ID: 23042-19-060
ProjectManager:JPT
DrawnBy:EJK
CheckedBy:JPT
600 Eldridge StreetCharlotte, North Carolina

Appendix A NCDEQ Brownfields Program Minimum Requirements Checklist for Site Assessment Work Plans and Reports (February 2022)
Work Plan and Report Checklist
Version 2 February 2022

Minimum Requirements Checklist for Site Assessment Work Plans and Reports
NCDEQ Brownfields Program – February 2022
Instructional Page
All references to Prospective Developers includes follow-on owners who may be conducting work in accordance with the Brownfields Property Management Unit.
To increase predictability and most efficiently assess Brownfields Properties and the redevelopment
timing requirements of Prospective Developers or follow-on owners, the Brownfields Program has standardized the format for Site Assessments. This format has been generated in the form of a checklist to allow for ease in submission by the prospective developer’s consultant and for the Brownfields Program’s completeness review. This checklist outlines the minimum requirements and
submittal format under the Brownfields Program for Assessment Requirements and Reporting. All
Assessment Work Plans and Reporting submissions to the Brownfields Program must include this
completed checklist in the outlined format.
These requirements allow DEQ to reduce review time for the Assessment Work Plan and Report and increase process predictability for prospective developers. This checklist will also provide
reliable data for risk-based decisions and further expedite the project timeline. Any divergence from
these requirements will lengthen the process of assessing risks on the site, may necessitate reprioritization of a project manager’s queue towards projects that meet these requirements. Therefore, delaying production of the brownfields agreement and/or environmental management plan. Any alterations to the checklist on a site- specific basis must be reviewed and approved by the
Program prior to implementation. However, in order to respect the schedule of all projects in house
and keep the program’s entire project pipeline moving, we strongly recommend against seeking changes to the checklist.
Based on a review of environmental and risk data from our project inventory, please note there are some new points of emphasis that are included herein:
1. For ALL residential reuses; sub-slab vapor assessment (full list EPA TO-15) is required,
regardless if existing structures will be removed. If no structures or slabs exist on the
Brownfields Property, exterior soil gas assessment is required within all proposed structure footprints.
2. ALL properties require groundwater data (VOCs, SVOCs and RCRA Metals) from a minimum of three sample locations, depth to groundwater and a resulting potentiometric map.
3. Soil shall be assessed based on areas of concern and redevelopment plans and across the
depth interval of the cut/grading.

Work Plan and Report Checklist
Version 2 February 2022

Environmental Site Assessment Work Plan Checklist Reviewed and checked by (Name ): _______________________________________ Title Page
The title page should include the following information. Letter style reports are acceptable, as long as this
information is somewhere on the first page.
Title of Work Plan
Brownfields Project Name (not the development name)
Brownfields Project Number
Date (updated with each revision)
Revision Number
Firm PE/PG License Number
Individual PE/PG seal & signature
Contact information for Developer, Consultant, and Project Manager
Section 1 – Introduction
Provide the site location, address, and acreage. Provide a BRIEF summary of the history of the property and its history in the program. For example: reiterate RECs from a Phase I ESA, indicate if the scope of work was negotiated during a Data Gap Meeting, etc. Briefly list and describe the data gaps the assessment is attempting to fill Indicate if the assessment data is for the use of any other DEQ programs in addition to the Brownfields Program (i.e. the site is a regulated UST, IHSB, etc. property)
Section 2 – Scope of Work
Provide a general description of proposed scope of work covered in this plan (i.e. 2 new monitoring wells, six groundwater samples, 5 exterior soil gas sampling points and 6 soil borings) Discuss samples to be collected by media and source area/location. Generally, the reasoning for the sample locations selected. Describe depths of samples to be collected (Reference Table 1) or how that decision will be made in the field, if needed. State for what each sample will be analyzed (briefly). Reference Table 1.
- For all residential reuses, sub slab vapor is required, if no slabs exist, exterior soil gas is required within all proposed footprints.
Section 3 – Sampling Methodology
Reference the guidance documents you intend to use. IHSB, EPA SESD, VI Guidance, Well Construction Rules (NCAC 2C). Note deviations or methodology planned that is not covered by such guidance (e.g., multi-increment sampling, passive air samplers, mobile labs, Hapsite, simultaneous indoor/outdoor radon, high-volume subslab vapor testing, PFAS sampling). Describe what will be installed (soil boring, temporary well, permanent well, sub slab vapor, exterior soil gas, etc.). Include construction details. Discuss installation methodology (Hand Auger, DPT, etc.) Discuss sample collection procedures. Include the following, at a minimum:
• Equipment to be used
• Purging methods and volumes
Work Plan and Report Checklist
Version 2 February 2022

• Stabilization parameters for groundwater sampling
• Field screening methods
• Leak check procedures for sub-slab vapor and exterior soil gas samples (Note this is
required)
• Discuss how and when vacuum readings will be collected (for summa cans) Discuss sample point abandonment
Section 4 – Laboratory Analyses
Discuss the proposed analyses (include method number, preparation method, if there are concerns with short hold times, etc).
Discuss any proposed limitations on the contaminants of concern, if any, and the reason for such limitation (sufficient previous data, indoor air interferences, etc). Discuss laboratory certifications. Please note, NC does not certify labs for air samples. Please specify what certification the proposed air lab holds. Indicate that the Reporting Limits/Method Detection Limits will meet applicable screening criteria
(to the extent feasible). Include Reporting of J-Flags to meet criteria. Indicate what Level QA/QC will be reported by the laboratory. Level II QA/QC is typically acceptable.

Section 5 – QA/QC
Specify the duplicate sample frequency. Minimum requirement: 1 duplicate per 20 samples, per media, per method. Discuss Trip Blank. 1 Trip Blank per cooler/shipment of groundwater VOC analyses is required. Discuss how the lab will have sufficient sample volume for MS/MSD analyses. Discuss chain of custody and shipping.
Section 6 – Investigation Derived Waste (IDW) Management
Discuss what IDW will be generated and how it is proposed to be managed. Management
recommendations should be in accordance with 15A NCAC 02T.1503 and 15A NCAC 02H. 0106.
Generally, if the Brownfields Property has not previously been assessed, then all IDW must be
containerized and characterized prior to management. Previous assessment data that indicate no
Hazardous Waste (listed or characteristic) is likely to be encountered in the area of proposed
assessment will be required before thin spreading of IDW on-site is permitted.
Section 7 – Reporting
This section should discuss the components of the assessment report which will be prepared as a result of
the above sample collection. At a minimum, the report shall include:
Reporting/summary of site work conducted for all sections outlined above in this checklist; Summary of findings and possible recommendations; All applicable tables and figures outlined below with the addition of: Tables for tabulated analytical data per media sampled and analyzed, compared against applicable screening levels, sample depths and depth to groundwater;
Figure depicting actual sample locations collected, with each media depicted in the legend, graphic scale and north arrow; and Groundwater potentiometric map, with graphic scale and north arrow. - Boring logs for all soil borings, newly constructed monitoring wells, and exterior soil gas locations - Well construction and abandonment records, if applicable
Work Plan and Report Checklist
Version 2 February 2022

Firm PE/PG License Number Individual PE/PG seal & signature
Work Plan and Report Checklist
Version 2 February 2022

Attachments
Table 1 – Proposed Sample Locations and Analyses on a Summary Table that includes:
Sample ID Sample Objective Proposed Depth(s) Analytical Method(s) QA/QC Samples Background Samples

Figure 1 – Site Location Map
Site location on a topographic map base
Graphic scale and north arrow

Figure 2 – Site Map should include the following
Buildings Historical sample locations RECs or other areas of concern
Proposed sample locations Sample identification labels Background samples QA/QC samples Graphic scale and north arrow
High quality aerial suggested as the base map

Figure 3 – Site Potentiometric Map
- Buildings
-Groundwater sample identification labels
-Graphic scale and north arrow

Figure 4 – Site Plume Maps (groundwater, soil vapor, etc.)

Figure 5 – Proposed Development (if available)
Overlay of historical and proposed sample locations
Graphic scale and north arrow Appendix – Summary of Historical Analytical Data (if needed) – to include tables and figures only.

Appendix B Previous Environmental Tables and Figures
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Revision April 11, 2013 Date:
~--~ EPA 8260 (mg/kg) ..
C~qtclit ..... .. ., ., .,
c c: c "O ., i!l "" . ·' "· .1:.;.·. ., N 31 .,
1.· ., N c: c c ·.·. ·:: .. ·,< ... ,A·.--·"'' c: c .. " "' Q) 1l <II .· ·: \~-.9 "' ~ "' :;:, ~ c I·· "' ~ ·c· 0 :; c: 9 < " ~ Ill 0 ~~ Q. ~ &l i -e .,
<II (.) ...
GP-1-15 3/1/2013 TW-1 15 BRL 0.0073 0.024 0.0045 BRL BRL
GP-2-7.5 3/1/2013 TW-2 7.5 0.085 BRL BRL BRL BRL BRL
GP-3-25 3/1/2013 TW-3 25 0.072 BRL BRL BRL BRL BRL
s-1* 7/26/2012 GP-1 4 BRL BRL 2.3 BRL BRL 1.3J
s-2* 7/26/2012 GP-2 6 0.059 BRL 0.011 0.0016 J 0.0016J 0.0028 J
S-3* 7126/2012 GP-5 8 BRL BRL BRL BRL BRL BRL
S-4* 7/26/2012 GP-3 12 0.035 BRL BRL BRL BRL BRL
s-s* 7/26/2012 GP-4 10 0.0073J BRL BRL BRL BRL BRL
s-e* 7/26/2012 GP-6 6 BRL BRL BRL BRL BRL BRL
S-7* 7126/2012 GP-7 8 0.012 J BRL BRL BRL 0.0025J BRL
s-a* 7/26/2012 GP-8 6 BRL BRL 0.22J BRL BRL BRL
-
24 2.4 2.2 1.7 3.8 NL
12,000 110 NL NL 160 NL
100,000 110 NL NL 740 NL
Notes: * -Sample Collected/Reported By Other Consultant
BRL -Below Reporting Limit
J -Detected At Concentration Below Reporting Limit, Result Is An Estimated Concentration
NA -Not Analyzed
NL -Not Listed
Q)
" c Q) c: N .. c N .. c: "' "' :;:, "' :;:, Q. e = w Q. ii
BRL 0.019
BRL BRL
BRL BRL
1.5J 4.6
BRL BRL
BRL BRL
BRL BRL
BRL BRL
BRL BRL
BRL BRL
BRL BRL
8.1 1.3
5.4 270
27 270
PSRG -Inactive Hazardous Sites Branch Preliminary Soil Remediation Goal (From Table Dated January 2012)
Yellow Shaded Cells Exceed Protection Of Groundwater PSRG
Orange Shaded Cells Exceed Residential Health Based PSRG
Pink Shaded Cells Exceed Commercial/Industrial Health Based PSRG
., c 0 Qj :<'. :;:, .s:; ii:i :;:,
~ :;
BRL
0.0059J
0.0078J
BRL
0.0082J
BRL
BRL
BRL
BRL
BRL
BRL
16
5,600
28,000
Table 1:
.. .. c: c: .. i!l " N c: c c: "' i!l c "' "' ., "' "' c :;:, :;:, iii ., = .s:; ~ "' Qj :;:, .,
Q. Q. E E e ., ·c ·c: z C\-f-f-.... "' c: <'i "! ~ ~
0.038 0.024 BRL BRL
BRL BRL BRL BRL
BRL BRL BRL BRL • ·->;'
24 •• 48
0.0096 BRL 0.0025J BRL
BRL BRL BRL BRL
BRL BRL BRL BRL
BRL BRL BRL BRL
BRL BRL BRL BRL
BRL BRL BRL BRL
1.1 0.11 J 0.19J BRL
0.21 1.5 6.7 6.7
3.6 260 12 160
18 260 52 180
Summary of Soil Sampling Results
EPA 8270 (mg/kg)
" .. .. ., ., ., c: c c c c: c: "' .. .. .. 'l': I ., .. Q) ., = = ~ c c: ., iii iii "' ., " c: ., 0 11\"' c: c: !';! c c ., ~ ~ !';! c = = c ., ., ., ., c !';! !';! Q. ,., .s=-., ., .91 ~ "' c: c ~ Q) = >..!!! '€ ~ c ~~ .s:; .s:; .. :;:, 0 0 0 ,!!: ~ Q. Q. ., ~ c: .. c ~ ~., ~ " :;:, >i: Q. !';! .lll " " .c .. = .. N !';! 0 ~~ .. .. ~ ~ >i: .. !E. !E. 2 cp: c: " 0,., c ~ .. 6: Q. ~ ~ .. "' -" .§ N.s:; .s:; "' 0 ;:;:: c: Q. :;:, Q. c:
0 oil 2 (.) .0 " .s:; .s:; .. ., 2 'O' c: ~ Q. ., .s:; E < N 2 ~ <II c ;:;:: "O Qj Qj z tl. c: c ~ c iii .s =ii ~ ~ "' .. Ill Ill -
BRL BRL BRL 0.26 J BRL BRL BRL BRL BRL BRL BRL BRL 0.23J BRL 0.65 BRL 2.3 3.2 0.32J 1.3 0.14J
BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
0.89J 2.5J 5.9 BRL BRL 0.25J o.37J 0.13J BRL ~~ . 1.7 0.64 BRL 0.58 BRL BRL BRL BRL 0.57 BRL 0.32J
BRL BRL BRL BRL 2.1 J .:.~: : ~" ··. 2.5J 3.3J BRL BRL 3.2J BRL 5.1 BRL 3i&.S BRL BRL BRL 2.2J 4.0 ..
BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
BRL BRL BRL BRL BRL BRL 0.S6J 0.94J BRL ~ BRL 0.52J BRL 2.0J BRL BRL BRL BRL BRL BRL 0.92J
5.5 NL NL 8.4 660 0.18 0.6 5.9 7,800 0.059 7.2 18 5.2 330 56 2.0 0.055 1.6 0.21 68 220
820 140 120 680 3,400 0.15 0.15 1.5 NL 0.015 35 15 16 460 460 0.15 16 46 3.6 NL 340
820 430 390 6,600 34,000 2.1 2.1 21 NL 0.21 120 210 170 4,400 4,400 2.1 53 370 18 NL 3,400
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Revision 4/11/2013 Date:
· .. -'· ... ·'' '
;' ''. ·····'· ·' .... ''·; ~·· ; ,,;, ' ' .; ".J\\:: ;' :,;,·· ·•·.<··.·\ ···.; '·'.·~>
; ' , .... ,,, ;~; ··:·•''.· ,'j;~;;: ' --,·,<-,
Q) Q)
••• •••• c c ~ ' .. •. . . .,. ' ,;, ''i ,,, .s ~ c ': Q) < ,. '' '' ID
tr•u:m · ~. ·
!, ,,' .--' ·_.; '
TW-1 3/4/2013 GP-1 10.79 BRL BRL
TW-2 3/4/2013 GP-2 11.00 BRL BRL
TW-3 3/4/2013 GP-3 27.88 BRL BRL
GP-1* 7/26/2012 GP-1 18J 3.3
GP-2* 7/26/2012 GP-2 Reprted As BRL BRL
18 To 20
GP-3* 7/26/2012 GP-3 Feet BRL BRL
GP-4* 7/26/2012 GP-4 BRL BRL
•. •»: ,, ' ti~'';'' .. ,
' '. ·•: ' ' ·, ·' '·'' .···
6,000 1
Notes: * -Sample Collected/Reported By Other Consultant
** -lntirim Standard
BRL -Below Reporting Limit
Q) Q) Q) c c c Q) Q) Q) N N N c c c Q) Q) Q) .t:l .t:l .t:l ~ ~ ~ ::l ::l ::l ID ID ID 0 t: ' c Q) Ill J!l
2.5 4.8 1.1
BRL BRL BRL
BRL BRL BRL
BRL BRL BRL
BRL BRL BRL
BRL BRL BRL
BRL BRL BRL
70 70 70
J -Detected At Concentration Below Reporting Limit, Result Is An Estimated Concentration
NA -Not Analyzed
Yellow Shaded Cells Exceed North Carolina Groundwater (2L) Standard
Q) c Q) Q) c N Q) c N Q) c .t:l 1l >. Q. >. ~ e Q. 0 !!!.
BRL 6.6
BRL BRL
BRL BRL
1.2 2.8
BRL BRL
BRL BRL
BRL BRL
600 70
Table 2: Summary of Groundwater Sampling Results
VOCs By EPA Method 6200B or 8260 (µg/L) Semi-VOCs By EPA Method 8270 (µg/L)
Q) Q) Q) c Q) $ 0 Q) Q) "C Q) c c Q) Q) Q) c c c c ·c c Ill 111 c c >. .J!I .J!I .Q Q) Q) ~ Q) .J!I '.J!I Q) ~ Q) Q) c N Q) c ~ ~ >. Q) Q) .c 111 111 c .c .J!I c Q) c c 111 ' >. IN >. < .c -Q. £ ~ Q) (.) c ~ ~ Q) ~ e ~= . .c £ >..!!! >. iii 111 ! .... -~ Q) ' .c ~ Q) • .t:l .... Q) ' Q) Q) 0 .c 111 £i ' Q. £ Q) >. ::l x ~ >. e .Q .;, e ~ e e ·o 1> £ .... g-IN 111 c 0 .... £i £ :c N Q) c c .c ~ Q. Q. ~ .Q 'ij .Q ~ .Q 0 c ' .c ::!: Q. 111 e t-Q) 9 .c 0 :c Q) ~ Q. >. >. 111 £i z II;-E .c 0 -£ ~ 0 ID ..,. £ .c z t-(.) Ill G) Q) ·c .... 15 15 G) ·c iii o!S Q)
::!: c t-t-t-::!: ::!: ... ..,
BRL 50 7.7 BRL BRL BRL BRL BRL 0.84 BRL BRL 3.5 NA NA NA NA NA NA
BRL BRL BRL BRL BRL BRL BRL BRL 1.5 BRL 3.1 160 NA NA NA NA NA NA
BRL BRL BRL BRL BRL BRL BRL BRL 1.1 BRL BRL 18 NA NA NA NA NA NA
5.6 6.8 5.1 1.2 2.3 1.5 660 3.1 BRL BRL BRL BRL BRL BRL 6.1 J 4.8J 4.4J 12
1.1 BRL BRL BRL BRL BRL BRL BRL 15 1.0 BRL 43 24J 4.7 J BRL BRL BRL BRL
1.8 BRL BRL BRL BRL BRL BRL BRL 4.5 BRL BRL 130 21 J BRL BRL BRL BRL BRL
1.4 BRL BRL BRL BRL BRL BRL BRL 0.66 BRL 8.3 72 21 J BRL BRL BRL BRL 0.21 J
5 6 70 600 500 400 3,000 6 70 100 0.7 3 30,000 3 40 1** 30 6
Table 2: Summary Of Sub·Slab Vapor Sampllng Results
Revision J~e 10, 2014
TRIP SSV-12 TRIP DWM Residential Vapor DWM
Client Sample ID SSV-1 SSV-2 SSV-3 SSV-6 SSV-7 SSV-8 SSV-9 SSV-10 SSV-11 SSV-12 Duplicate SSV-13 SSV-14 SSV-15 SSV-16 Comrnercial/lndustnal BLANK (SSV-17} BLANK Intrusion Screening Vapor Intrusion Screening Level: Acceptable Soil
Collect Date Gas Concentration Level: Acceptable Soil Gas
3/25/2013 3/22/2013 3/2212013 3/25/2013 3/28/2014 5122/2014 5/2212014 5/23/2014 5/21/2014 5/21/2014 5123/2014 5/2312014 5/22/2014 512112014 5/2212014 5/21/2014 5/2312014 (Jan. 2014) Concentration
Method Compound Units (Jan. 2014)
Acetone µg/m3 82 200 81 <5.94 33 20 130 24 160 200 31 31 36 29 240 59 <5.94 216,000 2,720,000
Benzene µg/m3 <1.3 <1.3 <1.3 <1.3 <1.3 <2.!16 <1.28 <1.28 3.8 4.5 <1.28 <1.28 <1.28 <1.28 2.1 <1.28 <1.28 104 1,570
Carbon disulfide µg/m3 <1.2 <1.2 <1.2 <1.2 <1.2 <2.•9 1.9 <1.24 15 2 <1.2' 1.5 <1.24 <1.24 31 <1.24 <1.2' 4,870 61,300
Chloroethane µg/m3 <1.1 <1.1 <1.1 <1.1 <1.1 <2.11 <1.06 <1.06 3.2 <1.06 <1.06 <1.06 <1.06 <1.06 <1.06 <1.06 <1.06 69,!IOO 876,000
Chloroform µg/m3 <1.95 2.2 <1.95 <1.95 <1.9 <3.89 <1.95 <1.95 5.8 <1.95 <1.95 <1.95 <1.9!1 <1.9!1 <1.95 <1.95 <1.95 3!1.3 533
Chloromethane µg/m3 <0.83 <0.83 <0.83 <0.83 2.7 <1.65 <0.826 <0.826 <0.826 <0.826 <0.826 1.5 <0.826 <0.826 <0.826 <0.826 <0.826 626 7,880
Cyclohexane µg/m3 <1A <1.A <1A <1.4 <1.4 <2.76 <1.38 <1.38 <1.38 <1.38 <1.38 <1.38 <1.38 <1.38 4.5 <1.38 <1.38 •1700 526,000
1,2-Dichloroethane µglm3 <1.6 <1.6 <1.6 <1.6 <1.6 <3.24 <1.62 <1.62 <1.62 <1.62 <1.62 <1.62 <1.62 <1.62 <1.62 3 <1.62 31.2 472
cis-1,2-Dichloroethene µg/m3 <1.6 <1.6 <1.6 <1.6 <1.6 <3.17 <1.59 <1.59 7.9 <1.59 <1.59 <1.59 <1.59 <1.59 <1.59 <1.59 <1.59 NL NL
1,4-Dioxane µglm3 <1.4 <1.4 <1.4 <1A <1.4 <2.88 4 <1.44 <1.44 43 <1.44 <1.44 <1A4 36 <1.44 <1.44 <1A4 NL NL
Ethanol µg/m3 21 23 16 <2.38 2,300 16 25 15 25 26 23 30 30 30 51 32 <2.38 NL NL
Ethylbenzene µg/m3 <1.7 <1.7 <1.7 <1.7 <1.7 <3.47 <1.73 <1.73 3.3 3.1 <1.73 <1.73 <1.73 <1.73 <1.73 <1.73 <1.73 32' 4910
Trichlorofluoromelhane µg/m3 <2.25 17 <2.25 <2.25 120 <4.!10 <2.25 <2.25 2.4 <2.2!1 19 15 5.3 4.7 36 29 <2.25 4,870 61,300
Dichlorodifluoromethane µg/m3 <2.0 <2.0 <2.0 <2.0 3.2 <3.96 <1.98 <1.98 2.5 2.2 <1.98 <1.98 <1.98 2.1 2.2 3.3 <1.98 695 8,760
Heptane µg/m3 <1.6 <1.6 <1.6 <1.6 <1 .6 <3.27 <1.64 <1.64 1.8 <1.64 <1.64 <1.64 <1.64 <1.64 2.4 <1.64 <1.64 NL NL
T0-15 n-Hexane µg/m3 <1A1 6 <1A1 <1.41 <1 .4 3.5 <1A1 <1.41 2.9 <1.41 <1.41 <1.41 <1.41 <1.41 2.6 <1.41 <1.41 4,870 61,300
Methylene Chloride µg/m3 <1.4 <1.4 <1A <1.4 3.5 3.2 <1.39 <1.39 <1.39 <1.39 <1.39 1.6 <1.39 <1.39 1.6 <1.39 <1.39 4,170 52,600
2-Butanone (MEK) µg/m3 22 32 17 <7.37 <7.4 <14.7 7.7 <7.37 19 17 <7.37 <7.37 <7.37 <7.37 47 10 <7.37 34,800 438,000
Naphthalene µg/m3 <6.6 <6.6 <6.6 <6.6 <6.6 <13.2 <6.60 <6.60 <6.60 <6.60 <6.60 <6.60 <6.60 <6.60 84 <6.60 <6.60 21 263
2-PropanoJ µg/m3 <6.15 6.8 <6.15 <6.15 8.1 <12.3 42 <6.15 <6.15 <6.15 <6.15 <6.15 <6.15 <6.15 9.1 <6.15 <6.15 NL NL
Propene µg/m3 3A <1.38 1.9 <1.38 <1.4 u 3.3 <1.38 34 1.4 <1.38 <1.38 <1.38 1.7 3.3 <1.38 <1.38 20,900 263,000
Styrene µglm3 <1.7 <1.7 <1.7 <1.7 <1.7 <3.40 3.5 1.8 38 5.1 <1.70 11 2.1 4.3 3.2 4.1 <1 .70 6,950 87,600
Tetrachloroethylene µg/m3 36 95 <2.72 <2.72 2.9 100 <2.72 2.8 12 3.2 <2.72 <2.72 12 7!1 81 <2.72 <2.72 278 3,500 (PCE}
Tetrahydrofuran µg/m3 <1.2 <1.2 <1.2 <1.2 4.1 <2.36 <1.18 <1.18 <1.18 8.6 <1.18 <1.18 <1.18 <1.18 <1.18 <1.18 <1.18 13,900 175,000
Toluene µg/m3 1.5 3.8 <1.51 <1.!51 9.4 3.2 •• 5 2.2 13 6 1.9 3.8 2.3 6.4 9 6 <1.51 34,800 438,000
1, 1, 1-Trichloroethane µg/m3 14 4.5 <2.18 <2.18 <2.2 <4.35 <2.18 <2.18 <2.18 <2.18 <2.18 <2.18 <2.18 <2.18 49 <2.18 <2.18 34,800 438,000
Trichloroethylene (TCE) µg/m3 <2.14 <2.14 5 <2.14 <2.1 <4.29 <2.14 <2.14 590 <2.14 <2.14 <2.14 4.4 28 <2.14 <2.14 <2.14 13.9 175
1,2,4-Trimethylbenzene µg/m3 <2.0 <2.0 <2.0 <2.0 <2.0 <3.93 2.3 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 <1.96 48.7 613
2,2,4-Trimethylpentane µg/m3 <1.9 <1.9 <1.9 <1.9 <1.9 <3.74 <1.87 <1.87 <1.87 3.8 <1.87 <1.87 <1.87 <1.87 <1.87 <1.87 <1.87 NL NL
m&p-Xytene µg/m3 <3.5 <3.5 <3.5 <3.5 <3.5 <6.94 <3.47 6.1 3.9 5.6 <3.47 <3A7 <3.47 <3A7 3.5 <3.47 <3.47 695 8,760
o-Xylene µg/m3 <1.7 <1.7 <1.7 <1.7 <1.7 <3.47 <1.73 2.3 1.8 2.4 <1.73 <1.73 <1.73 <1.73 1.8 <1.73 <1.73 695 8,760
A:SIM Helium 1946 ppm 640 !150 1500 NIA 430 320 66,000 5,400 10,000 6,000 7,500 5,200 3,500 4,400 3,000 5,000 <25 NIA NIA
Heium as % of Shroud % 0.27 0.25 0.65 NIA 0.165 0.13 25.14 2.13 3.89 2.37 2.93 2.04 1.36 1.74 1.15 1.85 NIA NIA NIA Concentration
Notes: N/A -Not Applicable
NL -Not Listed
-Exceeds DWM Residential Vapor lntrusiOn Screening Levels
-Exceeds DWM lndustriaVCommercial Vapor Intrusion Screening Levels
-Helium Concentration Over Quality Control Limits
Revision
Date
Method
T0-15
Noles:
July2, 2014
Chent Sample ID
Collect Date
Compound
cis-1,2·
Dichloroethene
trans-1,2-
Dichloroelhene
Trichloroethylene
ITC El
Vinvt chloride
N/A
NL
Air-1
Units 6/26/2014
µg/m3 <0.79
µg/m3 <0.79
µg/m3 <1.1
µQ/m3 <0.51
-Not Applicable
·Not Listed
Air-2
6/26/2014
<0.79
<0.79
<1.1
<0.51
Table 2: Summary of Indoor Air Sampling Results
Air-3 Aif-4 DWM Residential Indoor Air and Crawlspace
Screening Level (June 2014)
IASLIAl IASLIBl IASL©
6/26/2014 6/26/2014 TCR = 1.0E-06 TCR = 1.0E-05 TCR = 1.0E·04
<0.79 <0.79 NL NL NL
<0.79 <0.79 NL NL NL
<1.1 <1.1 0.42 0.42 0.42
<0.51 <0.51 0.17 1.7 16.8
• Exceeds DWM Residential Vapor Intrusion Screening Levels
• Exceeds DWM Industrial/Commercial Vapor Intrusion Screening Levels
DWM Commercial/Industrial Indoor Air and
Crawlspace Screening Level (June 2014)
IASLIAl IASLIBl IASL©
TCR = 1.0E-06 TCR = 1.0E·05 TCR = 1.0E-04
NL NL NL
NL NL NL
1.75 1.75 1.75
2.8 27.9 87.6
P:\Work Files\ENV\2013\014 ·South Cedar\Data tor 7-1 Report\NewVapor and Indoor Samples 6_27_14 Page 1
DRAFTTable 1Summary of Sub-Slab Vapor Analytical ResultsDynamic Auto Works600 W. Hill StreetCharlotte, North CarolinaH&H Job No. BWR-006AcetoneBenzene2-Butanone (MEK)ChloromethaneCyclohexaneDichlorodifluormethane (Freon 12)EthanolEthyl AcetateEthylbenzene4-EthyltolueneHeptaneHexaneMethylene ChloridePropeneStyreneTetrachloroethyleneTolueneTrichloroethyleneTrichlorofluoromethane (Freon 11)1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenem&p-Xyleneo-XyleneSSVP-12/18/2020420 32 3.8 J 1.3 49 3.1 58<0.543.8<0.6032 220 1.1 J 6.7 J<0.538.1 460<0.431.8 J<0.630.67 J 13 5.1DUP-1 2/18/2020370 30<1.11.1 47 3.1 45<0.543.2<0.6029 210 0.92 J 6.2 J<0.537.9 420<0.432.0 J<0.63 <0.6211 4.3SSVP-2 Eastern Portion of Building 2/18/2020<6659<11 <2.880 6.1 J 81 J<5.459<6.0150 570<8.420 J<5.352 23,000 4.5 J<8.56.9 J<6.2180 76SSVP-3 Western Portion of Building 2/18/20201,100 3.8 3.4 J 0.97<0.492.1 160 22 2.0 0.67 J 9.0<1.2 <0.84 <0.640.80 J 12 630<0.432.9 J 3.1<0.627.1 2.7220,000 120 35,000 630 42,000 700 NS 490 370 NS 2,800 4,900 4,200 NS 7,000 280 35,000 14 NS 420 420 700 7002,700,000 1,600 440,000 7,900 530,000 8,800 NS 6,100 4,900 NS 35,000 61,000 53,000 NS 88,000 3,500 440,000 180 NS 5,300 5,300 8,800 8,800Notes:1) North Carolina Department of Environment Quality (DEQ) Division of Waste Management (DWM) Residential Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) (February 2018)2) North Carlolina DEQ DWM Non-Residential SGSLs (February 2018)Compound concentrations are reported to the laboratory method detection limits.Compound concentrations are reported in micrograms per cubic meter (µg/m3).J = estimated value between the laboratory method detection limit and the laboratory reporting limitNS = Not Specifiedµg/m3DWM Residential SGSL (1)DWM Non-Residential SGSL (2)Sample IDSample DateAnalytical MethodSample LocationTO-15Central Portion of BuildingS:\AAA‐Master Projects\Beauxwright (BWR)\BWR‐006 Dynamic Auto Works\Tables\Data Tables3/19/2020Table 1Hart & Hickman, PC
DRAFT Table 2
Monitoring Well Construction and Water Level Data
Dynamic Auto Works
600 W. Hill Street
Charlotte, North Carolina
H&H Job No. BWR-006
Well ID Well Diameter
(in)
Approximate Well
Depth
(ft bgs)
Screen Interval
(ft bgs)
Depth to
Groundwater
(ft TOC)
MW-1 1 30 20-30 25.03
MW-2 2 37 27-37 21.45
MW-3 2 42 27-42 28.10
Notes:
bgs = below ground surface; TOC = top of casing
Depth to groundwater measurements collected on 2/19/2002
S:\AAA‐Master Projects\Beauxwright (BWR)\BWR‐006 Dynamic Auto Works\Tables\Data Tables
3/19/2020
Table 2
Hart & Hickman, PC
DRAFTTable 3 Summary of Groundwater Analytical ResultsDynamic Auto Works600 W. Hill StreetCharlotte, North CarolinaH&H Job No. BWR-006Sample IDMW-1DUP-1MW-2MW-3Date2/18/20202/18/20202/19/20202/19/2020Location DescriptionNorthern Portion of the SiteNortheastern Portion of the Site - Downgradient of former H.M Wade ManufacturingVOCs (8260B)Acetone<0.70 <0.70 <0.708.66,000 4,500,000 19,000,000Methyl Butyl Ketone (2-Hexanone)<0.29 <0.29 <0.291040 (3)1,6006,900Toluene<0.35<0.35<0.350.536003,80016,000Trichloroethylene1.10.98221631.04.4SVOCs (8270E)BRLBRLBRLBRL------RCRA Metals (6020B, 7470A)Arsenic<0.34 <0.34 <0.34 <3410 -- --Barium37 32 25 50 700 -- --Cadmium<0.22 <0.22 <0.22 <0.222----Chromium1.8 J 1.7 J<0.902.7 J 10 -- --Lead<0.44 <0.44 <0.440.58 J 15 -- --Mercury<0.034 <0.034 <0.034 <0.0341 0.18 0.75Selenium<0.98 <0.982.1 J 1.4 J 20 -- --Silver<0.34<0.34<0.34<0.3420----Notes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) (April 2013)2) NC DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Level (GWSLs) (February 2018)3) NC DEQ 15A NCAC 02L.0202 Interim Maximum Allowable Concentrations (IMACs) (April 2018)With the exception of metals, only constituents detected in at least one sample are shown.Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential GWSL (February 2018).Gray shaded values exceed Non-Residential GWSL (February 2018).VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds, RCRA = Resource Conservation and Recovery ActNS = not specified; -- = not applicableBRL = all compounds detected below laboratory method detection limitsJ = estimated value between the laboratory method detection limit and the laboratory reporting limitAuto Shop Building - Southern Portion of the SiteNon-Residential GWSLs(2)NC 2L Groundwater Standards(1) Residential GWSLs(2)S:\AAA‐Master Projects\Beauxwright (BWR)\BWR‐006 Dynamic Auto Works\Tables\Data Tables3/19/2020Table 3 Hart & Hickman, PC
DRAFTTable 4 Summary of Soil Analytical ResultsDyanmic Auto Works600 W. Hill StreetCharlotte, North CarolinaH&H Job No. BWR-006Sample IDSB-2 SB-3 SB-4SB-5 SB-6 SB-7 SB-8 SB-9Date1/28/2020 1/28/2020 1/27/20201/27/2020 1/27/2020 1/27/2020 1/27/2020 1/27/2020Area of Potential ConcernBehind Auto ShopDepth (ft bgs)0-20-20-20-22-40-22-42-4RangeMeanVOCs (8260D)Acetone0.060 0.078 0.11 0.050 0.037 0.054 0.060 0.063 0.096 0.04812,000140,000----Methyl Acetate<0.00032 <0.00035 <0.00028 <0.00039 <0.00038 <0.00037 <0.00038 <0.00027 <0.000350.0010 J 16,000230,000----Naphthalene0.00043 J<0.00038 <0.00031 <0.00042 <0.00041 <0.00040 <0.00041 <0.00029 <0.00038 <0.000354.118----Tetrachloroethylene<0.00063 <0.000680.0028 J<0.00076 <0.00074 <0.00072 <0.00073 <0.00052 <0.00069 <0.000631782----Toluene0.0022 J 0.0027 J 0.0034 0.0044<0.00065 <0.00063 <0.00064 <0.00046 <0.00060 <0.000569909,700----SVOCs (8270E)2-Methylnaphthalene<0.017 <0.0180.061 J<0.016 <0.017 <0.017 <0.015 <0.0160.089 J<0.01848 600-- --Benzo(a)anthracene<0.010 <0.0110.14 J<0.0096 <0.011 <0.010 <0.0092 <0.00990.046 J<0.0111.1 21-- --Benzo(a)pyrene<0.0078 <0.00840.16 J<0.0072 <0.0079 <0.0078 <0.0069 <0.0074 <0.0075 <0.00810.11 2.1-- --Benzo(b)fluoranthene<0.0081 <0.00860.29 J<0.0074 <0.0082 <0.0081 <0.0071 <0.00760.054 J<0.00831.1 21-- --Benzo(g,h,i)perylene<0.0086 <0.00920.13 J<0.0079 <0.0087 <0.0086 <0.0076 <0.0082 <0.0083 <0.0089NS NS-- --Benzo(k)fluoranthene<0.0093 <0.00990.062 J<0.0085 <0.0094 <0.0093 <0.0082 <0.0088 <0.0089 <0.009611 210-- --Chrysene<0.010 <0.0110.17 J<0.0095 <0.010 <0.010 <0.0091 <0.00980.049 J<0.011110 2,100-- --Fluoranthene<0.0099 <0.0110.31 J 0.044 J<0.010 <0.0099 <0.0087 <0.00940.079 J<0.010480 6,000-- --Indeno(1,2,3-cd)pyrene<0.025 <0.0260.12 J<0.023 <0.025 <0.025 <0.022 <0.023 <0.024 <0.0251.1 21-- --Naphthalene<0.019 <0.0200.050 J<0.017 <0.019 <0.019 <0.016 <0.0180.070 J<0.0194.1 18-- --Phenanthrene<0.0095 <0.0100.21 J<0.0088 <0.0097 <0.0095 <0.0084 <0.00900.098 J<0.0098NS NS-- --Pyrene<0.013 <0.0140.30 J 0.046 J<0.013 <0.013 <0.011 <0.0120.077 J<0.013360 4,500-- --Metals (6020B/7471B/7199)Arsenic2.02.05.13.13.52.51.84.35.03.90.683.00.34-2311.67Barium1201302101605750501502301303,10047,00069 - 133101Cadmium<0.13 <0.140.56 J<0.12 <0.13 <0.13 <0.110.30 J 0.32 J 0.14 J14200<0.103 - 2.36 2.36Chromium (total)110130341822383.333503323,000350,000 40.3 - 77.558.9Hexavalent Chromium0.49 J 0.42 J 0.34 JNA0.14 JNANANANANA0.316.5<0.328 - <0.342 --Trivalent Chromium109.51 129.58 33.66NA21.86NANANANANA23,000350,00040.3 - 77.558.9Lead1516220300327.31.81901202740080010.2 - 32.321.25Mercury0.15 0.13 0.53 0.30 0.16 0.053 J<0.0200.18 0.59 0.0812.39.70.0735 - 0.148 0.111Selenium4.15.45.14.72.31.1 J134.14.16.3781,200 0.753 - 1.35 1.052Silver<0.16 <0.170.21 J<0.14 <0.16 <0.16 <0.140.28 J 0.17 J<0.1678 1,200<0.199 - 12.7 12.7Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (December 2019). 2) Background metals data collected from Jim Griffin Roofing Co. (BF No. 22026-18-060) and Berryhill-Thrift Road (BF No. 21061-17-060) Brownfields properties.Soil concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown.Bold values exceed Residential PSRGs and the regional mean background concentrations for metalsUnderline values exceed Industrial/Commercial PSRGs and the regional mean background concentrations for metalsVOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; ft bgs= feet below ground surfaceNA = not analyzed; NS = not specified; -- = not applicableJ = estimated value between the laboratory method detection limit and the laboratory reporting limitSB-1/DUP-1North Central Portion of SiteResidential PSRGs (1)Industrial/ Commercial PSRGs (1)Auto Shop Interior(Beneath Building Slab)0-21/28/2020Background Metals in Nearby Brownfields Property (2) S:\AAA‐Master Projects\Beauxwright (BWR)\BWR‐006 Dynamic Auto Works\Tables\Data Tables3/19/2020Table 4Hart & Hickman, PC
REVISION NO. 0
JOB NO. BWR-006
DATE: 3-3-20
FIGURE NO. 2
DYNAMIC AUTO GROUP
600 WEST HILL STREET
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
MONITORING WELL
SOIL BOING
SUB-SLAB VAPOR SAMPLE
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology
NOTE:
1. AERIAL IMAGERY OBTAINED FROM NCONEMAP,2019.WE
S
T

H
I
L
L

S
T
R
E
E
T
MW-1
MW-2
MW-3
SB-9
SB-6
SB-8
SB-7
SB-3
SB-2 SB-4
SB-5
SB-1
SSVP-2
SSVP-1
SSVP-3
\\HHFS01\Redirectedfolders\Sperry\My Documents\ArcGIS\PROJECTS\BWR-006\SITE_MAP.dwg, FIG.2, 3/3/2020 5:34:44 PM, sperry
ATTACHMENT 1 DEQ Brownfields Redevelopment Section Assessment Work Plan Approval Signature Page
To be completed by Development Team and returned to DEQ Brownfields for review & signature.
Brownfields Project Name: The Foundry I & The Foundry II Brownfields Project Number: 17021-13-060 & 26093-22-060 Work Plan Title: In-Situ Soil Characterization & Soil Gas Work Plan Date: April 7, 2023 Revision Number: 3
Be advised that this approval from DEQ Brownfields does not waive any applicable requirement to obtain any necessary permits, licenses, or certifications for the above listed activities nor does it waive any requirement to comply with applicable law for such activities.
Prospective Developer (PD): AP Foundry, LP Contact Person: Mr. Welch Liles Phone Numbers: Office: [phone] Mobile: [phone] Email: [e-mail]
Property Owner (if different from above): Click or tap here to enter text. Contact Person: Click or tap here to enter text. Phone Numbers: Office: Click or tap here to enter text. Mobile: Click or tap here to enter text. Email: Click or tap here to enter text.
Environmental Consultant: ONE Environmental Group of Carolina, PLLC Contact Person: Jenny Tang, Hillary Goodell Phone Numbers: Office: [phone] Mobile: [phone] Email: [e-mail], [e-mail] Signature:
Mobile: [phone]
Consultant: ONE Environmental Group of Carolina, PLLC Printed Name/Title/Company: Hillary Goodell, PE / Operations Manager / ONE Environmental Group of Carolina, PLLC
Brownfields Project Manager: Carolyn Minnich Phone Numbers: Office: [phone] Email: [e-mail] Signature:
Date 4/7/2023
Brownfields Project Manager: Carolyn Minnich Date 04/10/2023
04/10/2023