11037_Double Oaks Soil Import Request 20221220

WSP USA Environment & Infrastructure Inc. 2801 Yorkmont Road, Suite 100 Charlotte, North Carolina 28208 Licensures: NC Engineering F-1253, Geology C-247
T: 704-357-8600

December 20, 2022

Ms. Carolyn Minnich, Brownfields Project Manager North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

Subject: Soil Transfer Request
North End Square II
813 Oaklawn Avenue Charlotte, North Carolina Import Brownfields Project Number: 21041-17-060 Export Brownfields Project Number: 11037-07-060
WSP Project No: 6228-17-0442
Dear Ms. Minnich:
WSP USA Environment & Infrastructure Inc. (WSP) is pleased to submit this Soil Transfer
Request for the above-referenced properties.
PROJECT INFORMATION
The Environmental Management Plan (EMP) for the subject property (Brownfields Project
21041-17-060) was approved in November 2021 by the North Carolina Department of
Environmental Quality (NCDEQ), Division of Waste Management (DWM), Brownfields
Program (BFP). In the fall of 2022, the Prospective Developer (PD), The Drakeford Company,
LLC, initiated redevelopment of the property.
The PD requests approval to transport up to 3,000 cubic yards of structurally suitable soil
from the Double Oaks Brownfield property at 1302 and 1340 Newland Road in Charlotte,
North Carolina to North End Square II located at 813 Oaklawn Avenue in Charlotte, North
Carolina. The PD for the export property, (DreamKey Partners) provided information relative
to the export soil characterization. Characterization of this soil was performed by others and
reported to the BFP (attached report, dated September 20, 2021). The results of the
characterization of the soil to be exported identified the following:
• Trace levels of Volatile Organic Compounds (VOCs) below the applicable Preliminary
Soil Remediation Goals (PSRGs).
Soil Transfer Request December 20, 2022 WSP Project: 6228-17-0442

• Concentrations of Semi-VOCs below the applicable PSRGs.

• Total metals concentrations identified in the stockpiled soil are consistent with
regional background levels. Arsenic and hexavalent chromium (some concentrations estimated) were identified at concentrations that exceeded the Residential PSRGs.

In comparison, the soil assessment performed at the import property (table attached)
identified the following:

• Trace level concentrations of acetone below the applicable PSRGs.

• Concentrations of Semi-VOCs below the applicable PSRGs with the exception of one
sample in which benzo(a)pyrene was identified at an estimated concentration that
exceeded the Residential PSRG.

• Total metals concentrations identified in the stockpiled soil are consistent with
regional background levels. Arsenic, chromium and hexavalent chromium were
identified at concentrations that exceeded the Residential PSRGs.
The addition of these soils to the North End Square II property results in minimal changes to
the Lifetime Incremental Cancer Risk (LICR) and non-carcinogenic hazard index (HI) for all
categories. Lastly, this addition does not result in an exceedance of the NCDEQ Risk
Threshold for a LICR or HI.
The PDs for both properties provided intent to receive this material provided BFP written
approval in the attached email correspondence.
CLOSING
WSP is available at your convenience to discuss the contents of this request or other aspects
of the project.
Sincerely,
WSP USA Environment & Infrastructure Inc.

Robert C. Foster, LG
Senior Associate Geologist
Registered, NC #1335
Enclosures
Cc: Mr. Bobby Drakeford, The Drakeford Company

Soil Transfer Request December 20, 2022 WSP Project: 6228-17-0442

TABLE OF SOIL DATA (IMPORT PROPERTY)

Constituent SS-1
(0-2' bgs)
SS-2
(0-2' bgs)
SS-3
(0-1.5' bgs)
SS-4
(0-2' bgs)
SS-5
(0-2' bgs)
SS-6
(0-2' bgs)
SS-7
(0-2' bgs)
SS-8
(0-2' bgs)
BG
(0-2' bgs)
DUP-1
(0-2' bgs)Trip Blank1
Residential Use
Health Based
PSRG (mg/kg)
Industrial/
Commercial
Health Based
PSRG (mg/kg)
Protection of
Groundwater
PSRG (mg/kg)
Range Mean
Acetone 0.11 0.086J 0.11 0.27 0.17 0.077J 0.095J 0.081J NA 0.078J <0.05 12000 140000 25
Arsenic 2.6 1.9 2 0.9 2.6 2.5 1.6 1.9 1.3 3.0 NA 0.68 3.0 5.8 1.0-40*NS
Barium 60 43 150 100 230 31 31 87 40 50 NA 3100 47000 580 50-1000 356
Cadmium <0.38 <0.44 0.7 0.066J 0.34J <0.42 <0.43 <0.39 <0.44 <0.46 NA 14 200 3 0.01-7.0*NS
Chromium 68 71 95 140 230 51 110 96 40 84 NA 0.31 6.5 3.8 7-300 65
Chromium, Hexavalent NA NA <1.0 <1.3 4.9 <1.1 NA NA NA <1.1 NA 0.31 6.5 3.8 NS NS
Lead 26 15 190 12 160 15 8.1 130 16 15 NA 400 800 250 2-200*NS
Mercury 0.059 0.079 0.068 0.0078J 0.11 0.14 0.15 0.12 0.077 0.14 NA 2.3 9.7 1.0 0.03-0.52 0.121
Selenium 0.23J <0.98 <0.86 <1.1 <0.96 <0.93 <0.94 <0.87 <0.98 <1.0 NA 78 1200 2.1 <0.1-0.8 0.42
Silver 0.080J 0.074J 0.11 0.045J 0.16 0.062J 0.045J 0.11 0.038J 0.072J NA 78 1200 3.4 NS NS
Benzo(a)anthracene <0.21 <0.24 0.067J <0.27 <0.24 <0.22 <0.23 0.14J NA <0.24 NA 1.1 21 0.35
Benzo(a)pyrene <0.21 <0.24 0.087J <0.27 <0.24 <0.22 <0.23 0.17J NA <0.24 NA 0.11 2.1 0.12
Benzo(b)fluoranthene 0.074J <0.24 0.11J <0.27 0.077J <0.22 <0.23 0.20J NA <0.24 NA 1.1 21 1.2
Benzo(g,h,i)perylene <0.21 <0.24 <0.21 <0.27 <0.24 <0.22 <0.23 <0.22 NA <0.24 NA NE NE 15600
Benzo(k)fluoranthene <0.21 <0.24 <0.21 <0.27 <0.24 <0.22 <0.23 0.074J NA <0.24 NA 11 210 12
Chrysene <0.21 <0.24 0.087J <0.27 <0.24 <0.22 <0.23 0.14J NA <0.24 NA 110 2100 36
Fluoranthene <0.21 <0.24 0.13J <0.27 <0.24 <0.22 <0.23 0.22 NA <0.24 NA 480 6000 670
Phenanthrene <0.21 <0.24 <0.21 <0.27 <0.24 <0.22 <0.23 0.12J NA <0.24 NA NE NE 134
Pyrene 0.083J <0.24 0.14J <0.27 0.078J <0.22 <0.23 0.24 NA <0.24 NA 360 4500 440
Notes:
1. Concentrations shown in milligrams per kilograms (mg/kg) relative to the Reporting Limit (RL).Prepared By/Date:LMM 12/28/18
2. Samples collected on December 13, 2018 Checked By/Date:RPD 1/3/18
3. North Carolina Department of Environmental Quality (NCDEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRG) dated February 2018
4. Only detections above laboratory reporting limits and J-flagged results are shown
5. J = Indicates that compound was detected at a concentration below the Reporting Limit (Lowest Calibration standard). Therefore, result is an estimated concentration.
6. NA- Not Analyzed
7. NE- Not established
(1) Range and mean values for "Background Metals for North Carolina Soils" taken from Elements in North American Soils by Dragun and Chekiri, 2005.
*Typical Range of "Native Soil Concentrations of Various Elements" as taken from The Soil Chemistry of Hazardous Materials, Dragun, James, 1988.
8. Bold font indicates identified concentration exceeded Residential PSRG.
9. Bold font and shaded gray cell indicates concentration exceeded Residential PSRG and Protection of Groundwater (PoG) PSRG.
10. Bold font and shaded green cell indicates concentration exceeded Residential and Protection of Groundwater (PoG) PSRG, but these concentrations fall within the range of "naturally occurring" metals in soil.
Table 2 - Summary of Soil Analytical Results
North End Square II
813 Oaklawn Avenue
Charlotte, North Carolina
Wood Project: 6228-17-0442
Not Applicable
Regional Background Metals in Soil(1)
Semi-Volatile Organic Compounds (SVOCs)
Metals (Total)
Volatile Organic Compounds (VOCs)
Not Applicable
Soil Transfer Request December 20, 2022 WSP Project: 6228-17-0442

STOCKPILE SOIL CHARACTERIZATION REPORT (EXPORT PROPERTY)

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Stockpile Soil Characterization Report Double Oaks
1302 & 1340 Newland Road Charlotte, North Carolina H&H Job CHP-039
Table of Contents
Section Page No. 1.0 Introduction ............................................................................................................................ 1
2.0 Brownfields Property History ............................................................................................... 3
3.0 Export Soil Characterization Activities ............................................................................... 4
3.1 Soil Sampling ....................................................................................................................... 4
3.2 Soil Sampling Results ........................................................................................................... 5
3.3 Quality Assurance/Quality Control ...................................................................................... 7
3.4 Investigation Derived Waste Management ........................................................................... 8
4.0 Stockpile Soil Characterization Summary .......................................................................... 9

Tables
Table 1 Summary of Stockpile Soil Analytical Results

Figures
Figure 1 Site Location Map
Figure 2 Brownfields Property and Soil Stockpile Map
Figure 3 Sample Location Map

List of Appendices
Appendix A Boring Logs
Appendix B Laboratory Analytical Report

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Stockpile Soil Characterization Report Double Oaks
1302 & 1340 Newland Road Charlotte, North Carolina H&H Job CHP-039
1.0 Introduction
On behalf of the Prospective Developer (PD), DreamKey Partners (formerly known as Charlotte
Mecklenburg Housing Partnership), Hart & Hickman, PC (H&H) has prepared this Stockpile
Soil Characterization Report for the Double Oaks Brownfields Property located at 1302 and
1340 Newland Road in Charlotte, Mecklenburg County, North Carolina (Site). The Site has a
completed Brownfields Agreement (BFA) with the North Carolina Department of Environmental
Quality (DEQ) Brownfields Program (ID: 11037-07-060). A Site Location Map is included as
Figure 1 and a Brownfields Property Map is included as Figure 2.

The Site consists of two parcels of vacant land (Parcel IDs: 07707902 and 07707903) that total
approximately 5.6 acres. The Site is a portion of a larger Brownfields Property which is
comprised of multiple parcels of contiguous and noncontiguous land that total approximately 56
acres. The majority of the Brownfields Property has been developed with single-family
residential subdivisions (Brightwalk community) or multi-family apartment complexes
(Alexander Apartment Homes and The Stevenson Apartments). The Site remains undeveloped
and contains a soil stockpile that is approximately 2.3 acres in area. The Site was used to store
excess soil cut during redevelopment of the Brownfields Property. The approximate extent of
the soil stockpile is depicted on Figure 2.

H&H understands that prior to the planned sale of the Site, the PD intends to remove the soil
stockpiled at the Site, which will result in an export of an estimated 40,000 cubic yards of soil.
Due to the scale (approximately 2.3 acres) and volume (estimated 40,000 cubic yards) of the
stockpiled soil, the logistics of tracking soil once moved or relocated on-Site would be
challenging. Therefore, to reduce on-Site movement of the stockpiled soil and facilitate the
direct loading of soil into trucks during export activities, H&H completed an in-situ type soil

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characterization of the stockpiled soil. The data collected during the assessment activities
outlined in the following sections will be used to predetermine the suitability of the soil for use
as beneficial fill and to assist in identifying an appropriate destination for the export soil.

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2.0 Brownfields Property History

The majority of the Brownfields Property (including the subject Site) was developed in the late
1940s with the historical Double Oaks neighborhood, which included a mix of single and multi-
family housing. A pre-regulatory solid waste municipal landfill, known as the Double Oaks
Landfill, was historically operated by the City of Charlotte to the west and southwest of the
Brownfields Property. The Double Oaks Landfill operated between approximately the 1940s
and early 1960s. Multiple assessment activities were conducted at the Double Oaks Landfill in
the 2000s and 2010s under the guidance of the DEQ Inactive Hazardous Sites Branch (IHSB)
Pre-Regulatory Landfill Program (ID# NONCD0000806). The waste disposal boundary has
been established and is depicted on the filed Brownfields plat. The landfill area is 500 feet or
more from the Site. According to the Exhibit 2 tables of the recorded Brownfields Agreement,
limited soil impacts were identified at the Brownfields Property at concentrations above
residential screening levels. The compounds detected above residential screening levels included
the metals arsenic, iron, and manganese; and the polycyclic aromatic hydrocarbons (PAHs)
benzo(a)anthracene, benzo(a)pyrene, and benzo(b)fluoranthene.

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3.0 Export Soil Characterization Activities

H&H conducted soil characterization sampling at the Site on July 27 through 30, 2021. The
stockpile soil characterization activities were performed in general accordance with DEQ IHSB’s
Guidelines for Assessment and Cleanup (Guidelines) dated July 2021, the most recent version of
the U.S. Environmental Protection Agency (EPA) Region IV Science and Ecosystem Support
Division’s (SESD) Field Branches Quality System and Technical Procedures guidance, and the
DEQ-approved Soil Characterization Work Plan – Revision 1 (Work Plan) prepared by H&H
and dated January 21, 2021.

A drone survey and stockpile volume analysis were conducted at the Site by SPOT Drone
Imaging Services, LLC on April 8, 2021. Based on the survey results and volume analysis, the
stockpile contains approximately 39,811 cubic yards. Based on the new stockpile volume
estimate, DEQ approved modifying the Work Plan to maintain a sample ratio of one sample per
1,000 cubic yards via telephone call on April 12, 2021. The drone survey summary was
previously provided to DEQ and is not included in this report.

H&H understands that in addition to DEQ Brownfields, the DEQ Division of Waste
Management (DWM) Solid Waste Section (SWS) may be involved with review of this report to
determine if the proposed soil-import property is an appropriate destination for the stockpiled
soil. Stockpile soil characterization assessment activities are described in the following sections.

3.1 Soil Sampling

H&H contracted with Mid South Environmental, Inc., a North Carolina-licensed driller, to
advance forty soil borings across the stockpile. The soil borings were positioned on an
approximate 75 feet by 55 feet grid that covered the stockpile. H&H collected soil stockpile
samples at a sampling rate of approximately one sample per 1,000 cubic yards for a total of 40
samples for laboratory analysis. Continuous soil samples were collected from the borings using
hand auger and/or direct push technology (DPT) drilling methods. The soil samples were field

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screened for indication of potential impacts by observation for staining, and the presence of
organic vapors using a calibrated photoionization detector (PID). Evidence of obvious impact
(i.e., staining or significantly elevated PID readings) was not observed during the stockpile
sampling. The stockpile consists of almost entirely soil with few scattered bricks and concrete.
Asphalt was reported in one boring (SB-40) and will be segregated from the soil for
proper management and disposal following stockpile removal. Soil boring logs are included as
Appendix A.

The stockpile samples were collected for laboratory analysis of volatile organic compounds
(VOCs) by EPA Method 8260, semi-VOCs (SVOCs) by EPA Method 8270, and Resource
Conservation and Recovery Act (RCRA) metals plus hexavalent chromium by EPA Methods
6020/7179/7199. Soil characterization samples collected for analysis of SVOCs and metals were
collected as composite samples, and samples collected for analysis of VOCs were collected as
grab samples. The composite samples consisted of up to five vertical feet of recovered soil that
was combined in the field to form one sample for laboratory analysis. VOC samples were
collected directly from the hand auger bucket or DPT liner from within the same sampling
interval. The sampling depths were varied to characterize shallow, mid-level, and deeper
stockpile soils. The soil samples were placed in dedicated laboratory-supplied sample
containers, labelled with sample identification, date and time and requested analysis, covered
with ice, and shipped to Pace Analytical Services, LLC (Pace), a North Carolina-certified
laboratory, under standard chain of custody protocols.

3.2 Soil Sampling Results

The results of analysis of the soil samples are summarized in Table 1. The analytical results of
the soil samples were compared to the DEQ IHSB Protection of Groundwater, Residential, and
Industrial/Commercial Preliminary Soil Remediation Goals (PSRGs) dated June 2021. Because
background metals data are not available for the subject Site, metal concentrations were also
compared to regional background levels for North Carolina soils as published in Elements in
North American Soils by Dragun and Chekiri (2005). In addition, H&H compared the metal
concentrations to background metals data for the Brightwalk VI Brownfields Property as

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documented in H&H’s Export Soil Assessment Report dated January 24, 2020. The Brightwalk
VI Brownfields Property is located approximately 0.5-mile south of the Site. Laboratory
analytical data reports and chain-of-custody records are included in Appendix B.

VOCs
Analytical results indicate that multiple VOCs were detected in the samples at trace levels below
PSRGs. Most of the low-level VOCs that were detected are petroleum-related compounds. Note
that toluene was reported in every sample at trace levels below PSRGs. The laboratory flagged
the trace toluene detections as possible laboratory contamination (C7-flag).

SVOCs
Analytical results indicate that no SVOCs were detected at concentrations exceeding PSRGs.

Metals
Analytical results indicate that metals concentrations in the stockpile soil samples are consistent
with regional background levels. Laboratory analytical results indicate that arsenic was detected
in every sample at concentrations ranging from 0.6 milligrams per kilogram (mg/kg) to 2.9
mg/kg. Most of the arsenic detections are above the Residential PSRG of 0.68 mg/kg but are
within the published range of regional background levels of arsenic in North Carolina soils (1.0
mg/kg to 18 mg/kg) and are generally consistent with the Brightwalk VI Brownfields Property
background range (1.6 mg/kg to 2.1 mg/kg). None of the arsenic detections are above the
Protection of Groundwater PSRG (5.8 mg/kg) or the Industrial/Commercial PSRG (3.0 mg/kg).

Hexavalent chromium was detected in 28 of the 40 samples at concentrations ranging from 0.552
J mg/kg to 2.8 mg/kg, which are above the Residential PSRG of 0.31 mg/kg but below the
Protection of Groundwater PSRG of 3.8 mg/kg and the Industrial/Commercial PSRG of 6.5
mg/kg. The background range for hexavalent chromium detected at the nearby Brightwalk VI
Brownfields Property was 0.21 J mg/kg to 0.32 J mg/kg. The hexavalent chromium detections
were generally consistent in concentration and were collected from stockpile depths ranging
from zero to twenty feet. Although the presence of hexavalent chromium in the environment
may be the result of anthropogenic activity, hexavalent chromium is potentially present in

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background soil. For example, the New Jersey Department of Environmental Protection (NJ
DEP) conducted a study of background levels of hexavalent chromium in soil. Results indicated
that of the 258 samples analyzed, 36% contained detectable concentrations of hexavalent
chromium, with a 75th percentile concentration of 1.4 mg/kg and a 99th percentile concentration
of 5.5 mg/kg1.

No other metals were detected at concentrations above PSRGs.

3.3 Quality Assurance/Quality Control

H&H utilized standard quality assurance/quality control (QA/QC) processes during the stockpile
sampling activities. Non-dedicated sampling equipment, including the hand auger and DPT
tooling, were decontaminated using Liquinox® detergent and deionized water prior to and
between each sampling location. H&H and Mid South wore nitrile gloves while handling
samples.

For field and laboratory QA/QC purposes, H&H collected one duplicate sample per twenty
samples. The duplicate samples were collected from soil borings SB-15 and SB-26 and were
analyzed for the same compounds as the parent samples. The results of analysis of the duplicate
samples indicate good analytical repeatability.

H&H requested that Pace include a Level II QA/QC data package for the laboratory reports.
Additionally, H&H requested that Pace report values to the laboratory-specified method
detection limits using J-flags and that the laboratory method detection limits meet the lower of
the PSRG values (to the extent feasible).

1 http://nemc.us/docs/2011/presentations/Presentation-NagourneyS-8-16-11-Tue-PM%20[Compatibility%20Mode].pdf

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3.4 Investigation Derived Waste Management

No significant soil impacts were observed during field screening and sampling activities.
Therefore, investigation derived waste (IDW) soil cuttings were placed back into the soil
stockpile at each sample location.

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4.0 Stockpile Soil Characterization Summary

H&H completed stockpile soil characterization activities at the Double Oaks Brownfields
Property located at 1302 and 1340 Newland Road in Charlotte, Mecklenburg County, North
Carolina on July 27 through July 30, 2021. The assessment activities were conducted to
determine the suitability of the stockpiled soil for use as beneficial fill and to assist in identifying
an appropriate destination for the proposed export soil. Based on the results of the assessment
activities, H&H concludes the following:

• H&H collected soil stockpile samples at a sampling rate of approximately one sample per
1,000 cubic yards for a total of 40 samples (plus two duplicate samples) for laboratory
analysis.

• No VOCs or SVOCs were detected in the stockpile at concentrations exceeding PSRGs.

• The metal arsenic was detected in the stockpile samples at concentrations above the
Residential PSRGs but within the range of published regional background levels of
arsenic and similar to the background range of arsenic at the nearby Brightwalk VI
Brownfields Property.

• The metal hexavalent chromium was detected in 28 of the 40 stockpile samples at
concentrations above the Residential PSRG but below the Protection of Groundwater and
Industrial/Commercial PSRGs.

Table
Table 1Summary of Stockpile Soil Analytical ResultsDouble Oaks Brownfields Site1302 1340 Newland RoadCharlotte, North CarolinaH&H Job No. CHP-039Sample IDSB-1 SB-2 SB-3 SB-4 SB-5 SB-6 SB-7 SB-8 SB-9 SB-10 SB-11Composite Sample Depth (feet)Ɨ0-2 0-3 0-2 0-4 0-3 0-5 0-5 5-10 0-5 0-5 0-5Sample DateRange Range Mean7/27/2021 7/27/2021 7/27/2021 7/27/2021 7/27/2021 7/27/2021 7/27/2021 7/27/2021 7/27/2021 7/27/20217/27/2021VOCs (8260) mg/kgAcetone25 12,000 140,000 -- -- --<0.0364<0.0384 <0.0321 <0.0499 <0.0469 <0.0474 <0.0326 <0.0433 <0.0426 <0.0566 <0.0412Benzene0.01 1.2 5.4 -- -- --<0.0023 <0.0024 <0.0020 <0.0031 <0.0029 <0.0029 <0.0020 <0.0027 <0.0026 <0.0035 <0.0026sec-Butylbenzene4.1 1,600 23,000 -- -- --<0.0025 <0.0026 <0.0020 <0.0034 <0.0032 <0.0032 <0.0022 <0.0030 <0.0029 <0.0039 <0.0028tert-Butylbenzene3.1 1,600 23,000 -- -- --<0.0020 <0.0021 <0.0018 <0.0028 <0.0026 <0.0026 <0.0018 <0.0024 <0.0024 <0.0031 <0.00231,2-Dichlorobenzene0.39 380 2,000 -- -- --<0.0020 <0.0022 <0.0018 <0.0028 <0.0026 <0.0027 <0.0018 <0.0024 <0.0024 <0.0032 <0.0020Ethylbenzene13 6.1 27 -- -- --<0.0026 <0.0028 <0.0023 <0.0036 <0.0034 <0.0034 <0.0024 <0.0031 <0.0031 <0.0041 <0.0030p-IsopropyltolueneNE NE NE -- -- --<0.0028 <0.0029 <0.0025 <0.0038 <0.0036 <0.0036 <0.0025 <0.0033 <0.0033 <0.0030 <0.0032Methyl-tert-butyl ether (MTBE)0.09 49 220 -- -- --<0.0021 <0.0022 <0.0019 <0.0029 <0.0027 <0.0028 <0.0019 <0.0025 <0.0025 <0.0033 <0.0024Naphthalene0.39 2.1 8.8 -- -- --<0.0030 <0.0031 <0.0026 <0.0041 <0.0038 <0.0039 <0.0027 <0.0036 <0.0035 <0.0046 <0.0034n-Propylbenzene2.6 780 5,100 -- -- --<0.0020 <0.0021 <0.0018 <0.0028 <0.0026 <0.0026 <0.0018 <0.0024 <0.0024 <0.0031 <0.0023Toluene8.3 990 9,700 -- -- -- 0.008 C7 0.0092 C7 0.0032 J, C7 0.008 C7 0.0109 C7 0.0083 C7 0.005 J, C7 0.029 C7 0.011 C7 0.0095 C7 0.009 C71,2,4-Trimethylbenzene12 63 370 -- -- --<0.0016 <0.0016 <0.0014 <0.0021 <0.0020 <0.0020 <0.0014 <0.0018 <0.0018 <0.0024 <0.00181,3,5-Trimethylbenzene11 56 320 -- -- --<0.0019 <0.0020 <0.0017 <0.0026 <0.0025 <0.0025 <0.0017 <0.0023 <0.0022 <0.0030 <0.0022Xylene (total)9.9 120 530 -- -- --<0.0032 <0.0034 <0.0029 <0.0044 <0.0042 <0.0042 <0.0029 <0.0038 <0.0038 <0.0050 <0.0037m&p-Xylene9.8 120 500 -- -- --<0.0039 <0.0041 <0.0034 <0.0053 <0.0050 <0.0050 <0.0035 <0.0046 <0.0045 <0.0060 <0.0044o-Xylene9.8 140 590 -- -- --<0.0025 <0.0026 <0.0022 <0.0034 <0.0032 <0.0033 <0.0022 <0.0030 <0.0029 <0.0039 <0.0028SVOCs (8270) mg/kgbis (2-Ethylhexyl)phthalate1.4 39.0 160 ---- --<0.150 <0.159 <0.159 <0.175 <0.172 <0.155 <0.157 <0.163 <0.178 <0.181<0.175Metals (6020/7471/7199) mg/kgArsenic5.8 0.68 3.0 1.6 - 2.1 1.0 - 18.0 4.81.1 0.72 0.80 0.72 1.2 0.88 1.00.641.2 1.41.1Barium580 3,100 47,000 69 - 130 50 - 1,000 356130 120 83 200 130 110 110 89 260 9593Cadmium3.0 14 200 <0.11 - <0.14 1.0 - 10* 4.30.093 J<0.0073 <0.0070 <0.0069 <0.00820.035 J<0.0078 <0.0080 <0.0083 <0.0087<0.0081LeadNE 400 800 7.6 - 22 ND - 50 1631 11 14 6.5 13 9.3 8.4 7.2 22 9.59.2Mercury1.0 2.3 9.7 <0.020 - 0.037 J 0.03 - 0.52 0.1210.030 J 0.019 J 0.017 J<0.0110.045 0.011 J 0.018 J 0.025 J 0.046 0.0490.039 JSelenium2.1 78 1,200 1.9 - 4.0 <0.1 - 0.8 0.42<0.047 <0.047 <0.045 <0.045 <0.053 <0.050 <0.051 <0.052 <0.054 <0.056<0.053Silver3.4 78 1,200 <0.14 - <0.17 ND - 5.0 NS0.063 J 0.080 J 0.053 0.16 0.088 J 0.057 J 0.065 J 0.043 0.080 J 0.078 J0.097 JChromium (total)3.8 0.31 6.5 46 - 61 7.0 - 300 6551 60 45 69 72 38 52 16 100 110100Hexavalent Chromium3.8 0.31 6.5 0.21 J - 0.32 J NS NS0.933 J 1.07 J 0.801 J 0.698 J 0.548 J 1.21 J 1.43 0.433 J 1.25 J 1.691.34 JTrivalent Chromium**360,000 23,000 350,000 45.72 - 60.79NS NS50.0758.93 44.20 68.30 71.42 36.79 50.57 15.57 98.75 108.3198.66Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs; dated June 2021)2) Range value of background metals for nearby Brightwalk VI Brownfields site taken from H&H's Export Soil Sampling Assessment Report dated January 24, 20203) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005* = Range and mean values of background metals for Southeastern USA soils** = Total Chromium - Hexavalent Chromium = Trivalent ChromiumƗ = VOCs collected as grab samples from within specified intervalBold values exceed Residential PSRGs Soil concentrations are reported in milligrams per kilogram (mg/kg)Laboratory analytical methods are shown in parenthesesOnly compounds detected in at least one sample shown aboveNA = Not Analyzed; NS = Not Specified; -- = Not Applicable; NE = Not Established VOCs = Volatile Organic Compounds; SVOCs = Semi-Volatile Organic CompoundsJ = estimated value between the laboratory detection limit and the laboratory reporting limitC7 = analyte is a possible laboratory contaminant (not present in method blank)MS-07 = matrix spike is outside control limits; possible non-homogeneous sample interference R-02 = duplicate relative percent difference (RPD) is outside of control limitsR-04 = duplicate RPD is less useful indicator of sample precisionLess than values indicate laboratory method detection limitsRegional Background Metals in Soil (3)Protection of GroundwaterNC DEQ PSRGs (1)Residential IndustrialStockpile SamplesRegional BackgroundBrightwalk VI (2)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Mecklenburg Housing Partnership - CHP/CHP-039 Double Oaks Soil Pile/Tables/Soil Data Table9/17/2021Table 1 (Page 1 of 4)Hart & Hickman, PC
Table 1Summary of Stockpile Soil Analytical ResultsDouble Oaks Brownfields Site1302 1340 Newland RoadCharlotte, North CarolinaH&H Job No. CHP-039Sample IDComposite Sample Depth (feet)ƗSample DateRange Range MeanVOCs (8260) mg/kgAcetone25 12,000 140,000 -- -- --Benzene0.01 1.2 5.4 -- -- --sec-Butylbenzene4.1 1,600 23,000 -- -- --tert-Butylbenzene3.1 1,600 23,000 -- -- --1,2-Dichlorobenzene0.39 380 2,000 -- -- --Ethylbenzene13 6.1 27 -- -- --p-IsopropyltolueneNE NE NE -- -- --Methyl-tert-butyl ether (MTBE)0.09 49 220 -- -- --Naphthalene0.39 2.1 8.8 -- -- --n-Propylbenzene2.6 780 5,100 -- -- --Toluene8.3 990 9,700 -- -- --1,2,4-Trimethylbenzene12 63 370 -- -- --1,3,5-Trimethylbenzene11 56 320 -- -- --Xylene (total)9.9 120 530 -- -- --m&p-Xylene9.8 120 500 -- -- --o-Xylene9.8 140 590 -- -- --SVOCs (8270) mg/kgbis (2-Ethylhexyl)phthalate1.4 39.0 160 ---- --Metals (6020/7471/7199) mg/kgArsenic5.8 0.68 3.0 1.6 - 2.1 1.0 - 18.0 4.8Barium580 3,100 47,000 69 - 130 50 - 1,000 356Cadmium3.0 14 200 <0.11 - <0.14 1.0 - 10* 4.3LeadNE 400 800 7.6 - 22 ND - 50 16Mercury1.0 2.3 9.7 <0.020 - 0.037 J 0.03 - 0.52 0.121Selenium2.1 78 1,200 1.9 - 4.0 <0.1 - 0.8 0.42Silver3.4 78 1,200 <0.14 - <0.17 ND - 5.0 NSChromium (total)3.8 0.31 6.5 46 - 61 7.0 - 300 65Hexavalent Chromium3.8 0.31 6.5 0.21 J - 0.32 J NS NSTrivalent Chromium**360,000 23,000 350,000 45.72 - 60.79NS NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs; dated June 2021)2) Range value of background metals for nearby Brightwalk VI Brownfields site taken from H&H's Export Soil Sampling Assessment Report dated January 24, 20203) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005* = Range and mean values of background metals for Southeastern USA soils** = Total Chromium - Hexavalent Chromium = Trivalent ChromiumƗ = VOCs collected as grab samples from within specified intervalBold values exceed Residential PSRGs Soil concentrations are reported in milligrams per kilogram (mg/kg)Laboratory analytical methods are shown in parenthesesOnly compounds detected in at least one sample shown aboveNA = Not Analyzed; NS = Not Specified; -- = Not Applicable; NE = Not Established VOCs = Volatile Organic Compounds; SVOCs = Semi-Volatile Organic CompoundsJ = estimated value between the laboratory detection limit and the laboratory reporting limitC7 = analyte is a possible laboratory contaminant (not present in method blank)MS-07 = matrix spike is outside control limits; possible non-homogeneous sample interference R-02 = duplicate relative percent difference (RPD) is outside of control limitsR-04 = duplicate RPD is less useful indicator of sample precisionLess than values indicate laboratory method detection limitsRegional Background Metals in Soil (3)Protection of GroundwaterNC DEQ PSRGs (1)Residential IndustrialRegional BackgroundBrightwalk VI (2)SB-12 SB-13 SB-14 SB-16 SB-17 SB-18 SB-19 SB-20 SB-21 SB-22 SB-235-10 0-5 0-5 7-12 5-10 0-5 5-10 5-10 0-5 0-5 10-157/27/2021 7/27/2021 7/28/2021 7/28/2021 7/28/2021 7/28/2021 7/28/2021 7/28/2021 7/28/2021 7/28/2021 7/28/2021<0.0416 <0.0317 <0.044 <0.0435 <0.047 <0.0435 <0.044 <0.0493 <0.0547 <0.0501 <0.0497 <0.0362 <0.0507<0.0026 <0.002 <0.0027 <0.0027 <0.0029 <0.0027 <0.0027 <0.0031 <0.0034 <0.0031 <0.0031 <0.00220.0046 J<0.0029 <0.0022 <0.003 <0.003 <0.0032 <0.003 <0.003 <0.0034 <0.0037 <0.0034 <0.0034 <0.00250.0041 J<0.0023 <0.0018 <0.0024 <0.0024 <0.0026 <0.0024 <0.0024 <0.0027 <0.003 <0.0028 <0.0028 <0.002 <0.0028<0.0023 <0.0018 <0.0025 <0.0024 <0.0026 <0.0024 <0.0021 <0.0028 <0.0031 <0.0028 <0.0028 <0.002 <0.0028<0.0030 <0.0023 <0.0032 <0.0032 <0.0034 <0.0032 <0.0032 <0.0036 <0.004 <0.0036 <0.0036 <0.0026 <0.0037<0.0022 <0.0024 <0.0034 <0.0033 <0.0036 <0.0033 <0.0034 <0.0038 <0.0042 <0.0038 <0.0038 <0.0028 <0.0039<0.0024 <0.0018 <0.0026 <0.0025 <0.0027 <0.0025 <0.0026 <0.0029 <0.0032 <0.0029 <0.0029 <0.0021 <0.003<0.0034 <0.0026 <0.0036 <0.0036 <0.0038 <0.0036 <0.0036 <0.004 <0.0045 <0.0041 <0.0041 <0.0030.0266<0.0023 <0.0018 <0.0024 <0.0024 <0.0026 <0.0024 <0.0024 <0.0027 <0.003 <0.0028 <0.0028 <0.0020.007 J0.0093 C7 0.0059 C7 0.0046 J, C7 0.0069 C7 0.0075 C7 0.0052 J, C7 0.0095 C7 0.014 C7 0.0043 J, C7 0.0042 J, C7 0.0201 C7 0.0144 C7 0.0233 C7<0.0018 <0.0014 <0.0019 <0.00190.0065 J<0.0019 <0.0019 <0.0021 <0.0023 <0.0021 <0.0021 <0.00150.0126<0.0022 <0.0017 <0.0023 <0.0023 <0.0025 <0.0023 <0.0023 <0.0026 <0.0029 <0.0026 <0.0026 <0.00190.0042 J<0.0037 <0.0028 <0.0039 <0.0039 <0.0042 <0.0039 <0.0039 <0.0044 <0.0049 <0.0044 <0.0044 <0.00320.0132 J<0.0044 <0.0034 <0.0047 <0.0046 <0.005 <0.0046 <0.0047 <0.0053 <0.0058 <0.0053 <0.0053 <0.00390.0079 J<0.0029 <0.0022 <0.003 <0.003 <0.0032 <0.003 <0.003 <0.0034 <0.0038 <0.0035 <0.0034 <0.00250.0054 J<0.1920.156 J 0.465<0.153 <0.768 <0.168 <0.154 <0.174 <0.181 <0.174 <0.173 <0.154 <0.1641.1 1.6 0.950.651.10.60 0.330.950.500.71 0.920.582.9 MS-07, R-0278 120 100 93 97 84 91 47 91 120 43 110 120<0.00820.021 J 0.028 J<0.0075 <0.0074 <0.0077 <0.0076 <0.0082 <0.0088 <0.0084 <0.0082 <0.00771.78.9 26 15 12 8.9 6.9 4.0 10 8.1 8.4 5.8 6.0 110 MS-19, R-020.038 0.056 0.028 J 0.027 J 0.027 J 0.024 J 0.055 0.058 0.025 J 0.035 J 0.032 J 0.016 J 0.058<0.053 <0.0461.1 J 0.50 J 0.89 J 0.39 J 0.91 J 0.41 J 0.76 J 0.92 J 0.76 J 0.33 J 1.0 J0.078 0.12 0.058 J 0.044 J 0.048 J 0.032 J 0.025 J 0.060 J 0.038 J 0.045 J 0.050 J 0.056 J 0.23 R-0468 99 32 41 33 19 13 77 54 47 34 130 391.45 J<0.3071.08 J 0.862 J 1.41<0.339 <0.3260.660 J 2.49 1.02 J<0.3362.63<0.3666.55 99 30.92 40.14 31.59 19 13 76.34 51.51 45.98 34 127.37 39SB-15 / DUP-1Stockpile Samples0-57/28/2021https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Mecklenburg Housing Partnership - CHP/CHP-039 Double Oaks Soil Pile/Tables/Soil Data Table9/17/2021Table 1 (Page 2 of 4)Hart & Hickman, PC
Table 1Summary of Stockpile Soil Analytical ResultsDouble Oaks Brownfields Site1302 1340 Newland RoadCharlotte, North CarolinaH&H Job No. CHP-039Sample IDComposite Sample Depth (feet)ƗSample DateRange Range MeanVOCs (8260) mg/kgAcetone25 12,000 140,000 -- -- --Benzene0.01 1.2 5.4 -- -- --sec-Butylbenzene4.1 1,600 23,000 -- -- --tert-Butylbenzene3.1 1,600 23,000 -- -- --1,2-Dichlorobenzene0.39 380 2,000 -- -- --Ethylbenzene13 6.1 27 -- -- --p-IsopropyltolueneNE NE NE -- -- --Methyl-tert-butyl ether (MTBE)0.09 49 220 -- -- --Naphthalene0.39 2.1 8.8 -- -- --n-Propylbenzene2.6 780 5,100 -- -- --Toluene8.3 990 9,700 -- -- --1,2,4-Trimethylbenzene12 63 370 -- -- --1,3,5-Trimethylbenzene11 56 320 -- -- --Xylene (total)9.9 120 530 -- -- --m&p-Xylene9.8 120 500 -- -- --o-Xylene9.8 140 590 -- -- --SVOCs (8270) mg/kgbis (2-Ethylhexyl)phthalate1.4 39.0 160 ---- --Metals (6020/7471/7199) mg/kgArsenic5.8 0.68 3.0 1.6 - 2.1 1.0 - 18.0 4.8Barium580 3,100 47,000 69 - 130 50 - 1,000 356Cadmium3.0 14 200 <0.11 - <0.14 1.0 - 10* 4.3LeadNE 400 800 7.6 - 22 ND - 50 16Mercury1.0 2.3 9.7 <0.020 - 0.037 J 0.03 - 0.52 0.121Selenium2.1 78 1,200 1.9 - 4.0 <0.1 - 0.8 0.42Silver3.4 78 1,200 <0.14 - <0.17 ND - 5.0 NSChromium (total)3.8 0.31 6.5 46 - 61 7.0 - 300 65Hexavalent Chromium3.8 0.31 6.5 0.21 J - 0.32 J NS NSTrivalent Chromium**360,000 23,000 350,000 45.72 - 60.79NS NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs; dated June 2021)2) Range value of background metals for nearby Brightwalk VI Brownfields site taken from H&H's Export Soil Sampling Assessment Report dated January 24, 20203) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005* = Range and mean values of background metals for Southeastern USA soils** = Total Chromium - Hexavalent Chromium = Trivalent ChromiumƗ = VOCs collected as grab samples from within specified intervalBold values exceed Residential PSRGs Soil concentrations are reported in milligrams per kilogram (mg/kg)Laboratory analytical methods are shown in parenthesesOnly compounds detected in at least one sample shown aboveNA = Not Analyzed; NS = Not Specified; -- = Not Applicable; NE = Not Established VOCs = Volatile Organic Compounds; SVOCs = Semi-Volatile Organic CompoundsJ = estimated value between the laboratory detection limit and the laboratory reporting limitC7 = analyte is a possible laboratory contaminant (not present in method blank)MS-07 = matrix spike is outside control limits; possible non-homogeneous sample interference R-02 = duplicate relative percent difference (RPD) is outside of control limitsR-04 = duplicate RPD is less useful indicator of sample precisionLess than values indicate laboratory method detection limitsRegional Background Metals in Soil (3)Protection of GroundwaterNC DEQ PSRGs (1)Residential IndustrialRegional BackgroundBrightwalk VI (2)SB-24 SB-25 SB-27 SB-28 SB-29 SB-30 SB-31 SB-32 SB-33 SB-345-10 0-5 10-15 15-20 0-5 0-5 5-10 15-20 0-4 0-47/28/2021 7/29/2021 7/29/2021 7/29/2021 7/29/2021 7/29/2021 7/29/2021 7/29/2021 7/29/2021 7/30/2021<0.0619 <0.04970.0638 J<0.0439 <0.0647 <0.0454 <0.0411 <0.0399 <0.0433 <0.0406 <0.0484 <0.0452<0.0038 <0.0031 <0.003 <0.0027 <0.004 <0.0028 <0.0025 <0.0025 <0.0027 <0.0025 <0.003 <0.0028<0.0042 <0.0034 <0.0033 <0.0030.0056 J 0.0089<0.00280.0066<0.003 <0.0028 <0.0033 <0.0031<0.0038 <0.0028 <0.0027 <0.0024 <0.0036 <0.0025 <0.0023 <0.0022 <0.0024 <0.0023 <0.0027 <0.0025<0.0035 <0.0028 <0.0027 <0.0025 <0.0036 <0.0025 <0.0023 <0.00220.0041 J<0.0023 <0.0027 <0.0025<0.0045 <0.0028 <0.0035 <0.0032 <0.0047 <0.0033 <0.003 <0.00290.0051 J<0.003 <0.0035 <0.0033<0.00470.004 J<0.0037 <0.00340.0118<0.00350.0043 J<0.0031 <0.0033 <0.0031 <0.0037 <0.0035<0.0036 <0.0029 <0.0028 <0.0026 <0.0038 <0.0026 <0.0024 <0.0023 <0.0025 <0.0024 <0.0028 <0.0026<0.00510.0093<0.004 <0.00360.0165 0.0096<0.00340.0099<0.0035 <0.0034 <0.004 <0.0037<0.0034 <0.0028 <0.0027 <0.00240.0089 J<0.0025 <0.00230.0050 J<0.0024 <0.0023 <0.0027 <0.00250.0075 J, C7 0.0124 J, C7 0.0152 C7 0.0161 C7 0.0224 C7 0.0157 C7 0.0194 C7 0.0089 C7 0.0091 C7 0.0138 C7 0.0185 C7 0.010 C7<0.00260.0056 J<0.0021 <0.00190.0122<0.00190.0046 J<0.00170.0040 J<0.00170.0041 J<0.0019<0.0032 <0.0026 <0.0025 <0.0023 <0.0034 <0.0024 <0.0021 <0.0021 <0.0023 <0.00210.0152<0.0024<0.00550.0078 J 0.0063 J 0.0074 J 0.0218 0.0094 J 0.0087 J 0.0075 J 0.0057 J 0.0075 J 0.0105 J 0.0054 J<0.00660.0078 J 0.0063 J 0.0074 J 0.0162 J 0.0094 J 0.0087 J 0.0075 J 0.0057 J 0.0075 J 0.0047 J 0.0054 J<0.0043 <0.0034 <0.0033 <0.0030.0055 J<0.0031 <0.0028 <0.0027 <0.003 <0.0028 <0.0028 <0.0031<0.194 <0.150 <0.170 <0.153 <0.161 <0.162 <0.148 <0.1560.169 J<0.151 <0.145 <0.1540.69 0.840.670.77 1.8 1.5 1.2 1.9 1.3 2.1 1.1 0.8192 90 91 70 99 110 100 110<0.2285 78 700.020 J 0.013 J 0.027 J<0.00760.13 0.35 J 0.078 J 0.51<0.00790.55 R-04 0.040 J 0.051 J9.213121423382039<2.125 24 180.037 0.028 J 0.043 0.033 J 0.036 0.14 0.091 0.043 0.086 0.064 0.04 0.021 J0.85 J 0.41 J 0.60 J 0.83 J 0.71 J 0.77 J 0.71 J 0.66 J 0.75 0.79 J 0.67 J 0.63 J0.048 J 0.047 J 0.047 J 0.05 J 0.10 0.12 0.073 J 0.20<0.00290.082 J 0.05 J 0.042 J49 31 29 29 33 26 43 39 28 28 30 471.19 J 1.09 J 0.86 J 0.623 J<0.317 <0.320 <0.311 <0.312 <0.359 <0.3360.552 J 0.801 J47.81 29.91 28.14 28.38 33 26 43 39 28 28 29.45 46.27/29/2021SB-26 / DUP-2Stockpile Samples5-10https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Mecklenburg Housing Partnership - CHP/CHP-039 Double Oaks Soil Pile/Tables/Soil Data Table9/17/2021Table 1 (Page 3 of 4)Hart & Hickman, PC
Table 1Summary of Stockpile Soil Analytical ResultsDouble Oaks Brownfields Site1302 1340 Newland RoadCharlotte, North CarolinaH&H Job No. CHP-039Sample IDComposite Sample Depth (feet)ƗSample DateRange Range MeanVOCs (8260) mg/kgAcetone25 12,000 140,000 -- -- --Benzene0.01 1.2 5.4 -- -- --sec-Butylbenzene4.1 1,600 23,000 -- -- --tert-Butylbenzene3.1 1,600 23,000 -- -- --1,2-Dichlorobenzene0.39 380 2,000 -- -- --Ethylbenzene13 6.1 27 -- -- --p-IsopropyltolueneNE NE NE -- -- --Methyl-tert-butyl ether (MTBE)0.09 49 220 -- -- --Naphthalene0.39 2.1 8.8 -- -- --n-Propylbenzene2.6 780 5,100 -- -- --Toluene8.3 990 9,700 -- -- --1,2,4-Trimethylbenzene12 63 370 -- -- --1,3,5-Trimethylbenzene11 56 320 -- -- --Xylene (total)9.9 120 530 -- -- --m&p-Xylene9.8 120 500 -- -- --o-Xylene9.8 140 590 -- -- --SVOCs (8270) mg/kgbis (2-Ethylhexyl)phthalate1.4 39.0 160 ---- --Metals (6020/7471/7199) mg/kgArsenic5.8 0.68 3.0 1.6 - 2.1 1.0 - 18.0 4.8Barium580 3,100 47,000 69 - 130 50 - 1,000 356Cadmium3.0 14 200 <0.11 - <0.14 1.0 - 10* 4.3LeadNE 400 800 7.6 - 22 ND - 50 16Mercury1.0 2.3 9.7 <0.020 - 0.037 J 0.03 - 0.52 0.121Selenium2.1 78 1,200 1.9 - 4.0 <0.1 - 0.8 0.42Silver3.4 78 1,200 <0.14 - <0.17 ND - 5.0 NSChromium (total)3.8 0.31 6.5 46 - 61 7.0 - 300 65Hexavalent Chromium3.8 0.31 6.5 0.21 J - 0.32 J NS NSTrivalent Chromium**360,000 23,000 350,000 45.72 - 60.79NS NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs; dated June 2021)2) Range value of background metals for nearby Brightwalk VI Brownfields site taken from H&H's Export Soil Sampling Assessment Report dated January 24, 20203) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005* = Range and mean values of background metals for Southeastern USA soils** = Total Chromium - Hexavalent Chromium = Trivalent ChromiumƗ = VOCs collected as grab samples from within specified intervalBold values exceed Residential PSRGs Soil concentrations are reported in milligrams per kilogram (mg/kg)Laboratory analytical methods are shown in parenthesesOnly compounds detected in at least one sample shown aboveNA = Not Analyzed; NS = Not Specified; -- = Not Applicable; NE = Not Established VOCs = Volatile Organic Compounds; SVOCs = Semi-Volatile Organic CompoundsJ = estimated value between the laboratory detection limit and the laboratory reporting limitC7 = analyte is a possible laboratory contaminant (not present in method blank)MS-07 = matrix spike is outside control limits; possible non-homogeneous sample interference R-02 = duplicate relative percent difference (RPD) is outside of control limitsR-04 = duplicate RPD is less useful indicator of sample precisionLess than values indicate laboratory method detection limitsRegional Background Metals in Soil (3)Protection of GroundwaterNC DEQ PSRGs (1)Residential IndustrialRegional BackgroundBrightwalk VI (2)SB-35 SB-36 SB-37 SB-38 SB-39 SB-400-5 0-4 0-4 0-4 0-5 2-57/30/2021 7/30/2021 7/30/2021 7/30/2021 7/30/2021 7/30/2021<0.0463 <0.0392 <0.0378 <0.0452 <0.041 <0.0408<0.0029 <0.0024 <0.0023 <0.0028 <0.0025 <0.0025<0.0032 <0.0027 <0.0026 <0.0031 <0.00280.0077<0.0026 <0.0022 <0.0021 <0.0025 <0.00230.0063 J<0.0026 <0.0022 <0.0021 <0.0025 <0.002 <0.0023<0.0034 <0.0028 <0.0027 <0.0033 <0.003 <0.003<0.0035 <0.003 <0.0029 <0.0035 <0.0031 <0.00310.0041 J<0.0023 <0.00220.0040 J<0.0024 <0.0024<0.0038 <0.0032 <0.00310.0050 J<0.0034 <0.0033<0.0026 <0.0022 <0.0021 <0.0025 <0.0023 <0.00230.0079 C7 0.0114 C7 0.0127 C7 0.0167 C7 0.0101 C7 0.0236 C70.0056 J<0.0017 <0.00160.0065 J<0.0018 <0.0017<0.0024 <0.0021 <0.002 <0.0024 <0.0021 <0.00210.0070 J 0.0054 J 0.0059 J 0.0165 0.0057 J 0.0094 J0.0070 J 0.0054 J 0.0059 J 0.0113 J 0.0057 J 0.0094 J<0.0032 <0.0027 <0.00260.0052 J<0.0028 <0.0028<0.151 <0.159 <0.148 <0.158 <0.1450.172 J1.2 1.1 2.8 0.79 1.5 1.2110 85 420 110 84 1000.14 J<0.0081 <0.0074 <0.0074 <0.00740.042 J28 6.6 16 6.7 14 250.029 J 0.03 J 0.033 J 0.032 J 0.038 0.026 J0.83 J 0.66 J<0.048 <0.048 <0.048 <0.0470.087 J 0.044 J 0.067 J 0.085 J 0.061 J 0.069 J41 34 98 190 81 360.766 J 0.911 J 1.26 1.34 2.01<0.29840.23 33.09 96.74 188.66 78.99 36Stockpile Sampleshttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Mecklenburg Housing Partnership - CHP/CHP-039 Double Oaks Soil Pile/Tables/Soil Data Table9/17/2021Table 1 (Page 4 of 4)Hart & Hickman, PC

Figures
Copyright:© 2013 National Geographic Society, i-cubed
SITE LOCATION MAP
DOUBLE OAKS BROWNFIELDS SITE 1302 & 1340 NEWLAND ROAD
CHARLOTTE, NORTH CAROLINA
DATE: 11-30-20
JOB NO: CHP-039
REVISION NO: 0
FIGURE NO: 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
SITE
Path: S:\AAA-Master Projects\Charlotte Mecklenburg Housing Partnership - CHP\CHP-039 Double Oaks Soil Pile\Figures\Figure-1.mxdN
U.S.G.S. QUADRANGLE MAP
DERITA, NORTH CAROLINA 2013CHARLOTTE EAST, NORTH CAROLINA 2013
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
LEGEND
BROWNFIELDS SITE BOUNDARY
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
APPROXIMATE EXTENT OF SOIL STOCKPILE
SURFACE WATER FEATURE
JOB NO. CHP-039
REVISION NO. 0DATE: 12-15-20
FIGURE NO. 2
DOUBLE OAKS BROWNFIELDS SITE
STATESVILLE AVENUE & NEWLAND ROAD
CHARLOTTE, NORTH CAROLINA
BROWNFIELDS PROPERTY AND
SOIL STOCKPILE MAP
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyIRIWIN CREEKIRIWIN CREEK
INTERSTATE-77 SOUTHBOUNDINTERSTATE-77 NORTHBOUNDATANDO AVENUE
LASALLE STREET
STATESVILLE AVENUEN
E
W
L
A
N
D

R
O
A
DSAMUEL STREETDOUBLE OAKS ROADMOSS LANE
WOO
D
W
A
R
D

A
V
E
N
U
E
BADGER COU
R
T
BENDING BIRCH PLACEWOODW
A
R
D

A
V
E
N
U
E
DRUID CIRC
L
E
MONA DRIV
E
NORRIS A
V
E
N
U
E
RESIDENTIAL
RESIDENTIAL
RESIDENTIALMONTREAT STREETJUSTICE AVENUE
LINCOLN HEIGHTS ACADEMY
(1900 NEWCASTLE STREET)
NEW LIFE
FELLOWSHIP CHURCH
(1337 SAMUEL STREET)
DOUBLE OAKS PARK
(2605 DOUBLE OAKS ROAD)
NOTES:
1. AERIAL IMAGERY AND PARCEL DATA OBTAINED
FROM MECKLENBURG COUNTY GIS (2020).
ST LUKE MISSIONARY
BAPTIST CHURCH
(1600 NORRIS AVENUE)
MULTI-TENANT COMMERCIAL BUILDING
(2624-2634 STATESVILLE AVENUE)
MOBIL GAS STATION
(1300 LASALLE STREET)
MORETZ AV
E
N
U
E
AE GRIER & SONS FUNERAL
AND CREMATION
(2310 STATESVILLE AVENUE)
OUR LADY OF CONSOLATION
CATHOLIC CHURCH
(2301 STATESVILLE AVENUE)
MCNEEL APARTMENTS
(1214 KOHLER AVENUE)
APPROXIMATE EXTENT
OF SOIL STOCKPILE
S:\AAA-Master Projects\Charlotte Mecklenburg Housing Partnership - CHP\CHP-039 Double Oaks Soil Pile\Figures\Site Map.dwg, FIG 2, 12/15/2020 8:43:45 PM, SVincent
REVISION NO. 0
JOB NO. CHP-039
DATE: 9-2-21
FIGURE NO. 3
DOUBLE OAKS BROWNFIELDS SITE
1302 & 1340 NEWLAND ROAD
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
SURFACE WATER FEATURE
1 FOOT TOPOGRAPHIC CONTOUR
SOIL BORING LOCATION
2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologySTATESVILLE AVENUEN
E
W
L
A
N
D

R
O
A
D
SAMU
EL ST
R
E
ET
HOLLAND AVENUE
SA
M
U
E
L

S
T
R
E
E
T
NOTES:
1. AERIAL IMAGERY AND PARCEL DATA OBTAINED
FROM MECKLENBURG COUNTY GIS (2020).
2. ELEVATION SURVEY CONDUCTED BY SPOT DRONE
IMAGING SERVICES, LLC ON APRIL 6, 2021.
SB-1
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S:\AAA-Master Projects\Charlotte Mecklenburg Housing Partnership - CHP\CHP-039 Double Oaks Soil Pile\Figures\Site Map_2021.04.21.dwg, FIG 3A2, 9/2/2021 10:45:55 AM, SVincent
Soil Transfer Request December 20, 2022 WSP Project: 6228-17-0442

EMAIL CORRESPONDENCE
From:David Belk
To:Foster, Rob; Bobby Drakeford
Subject:RE: BF Fill Soil Export/import request
Date:Tuesday, December 20, 2022 3:56:56 PM
Attachments:image001.pngimage002.jpgimage003.jpgimage004.pngimage005.png
CAUTION: External email. Please do not click on links/attachments unless you know the content is genuine and
safe.
Rob,

That is correct. Atando Avenue Partners, LLC wishes to export up to 3,000 cubic yards of structurally suitable fill soil
characterized by others to North End Square II (#21041-17-060) property.

Best,

David

DAVID BELK
Development Manager

WE’VE MOVED! OUR NEW ADDRESS IS:
1900 West Morehead St., Suite 201
Charlotte, North Carolina 28208

704.441.2455
[e-mail]

beauxwright.com

From: Foster, Rob <[e-mail]>
Sent: Tuesday, December 20, 2022 2:28 PM
To: David Belk <[e-mail]>; Bobby Drakeford <[e-mail]>
Subject: RE: BF Fill Soil Export/import request

David and Bobby,

I prepared a soil transfer request for NCDEQ to review. I need to add email correspondence from both of the Prospective
Developers (PDs) stating the following:

Importer
The PD for the North End Square II (#21041-17-060) property (The Drakeford Company) wishes to receive up to 3,000
cubic yards of structurally suitable fill soil characterized by others from the Double Oaks BF Property (#11037-07-060).

Exporter
The PD for the Double Oaks BF Property (#11037-07-060) wishes to export up to 3,000 cubic yards of structurally suitable
fill soil characterized by others to North End Square II (#21041-17-060) property.

Thank you,

Rob Foster

From: David Belk <[e-mail]>
Sent: Monday, December 19, 2022 10:24 AM
To: Matt Ingalls <[e-mail]>; Foster, Rob <[e-mail]>; Bobby Drakeford
<[e-mail]>; Scott Carr <[e-mail]>
Cc: Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

CAUTION: External email. Please do not click on links/attachments unless you know the content is genuine and safe.
Good morning Rob,

Checking in to see how this process is going.

Thank you,

David

DAVID BELK
Development Manager

WE’VE MOVED! OUR NEW ADDRESS IS:
1900 West Morehead St., Suite 201
Charlotte, North Carolina 28208

704.441.2455
[e-mail]

beauxwright.com

From: Matt Ingalls <[e-mail]>
Sent: Tuesday, December 6, 2022 2:05 PM
To: Foster, Rob <[e-mail]>; Bobby Drakeford <[e-mail]>; Scott Carr <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

Thanks Rob. Carolyn Minnich is our DEQ PM for the Double Oaks BF site. Should be an easy approval as not much impact
identified during assessment of the soil pile that we conducted previously for the former Site owner Dream Key Partners
(see attached report).

Matt Ingalls, Sr. Project Manager and ShareholderHart & Hickman, PC2923 S Tryon Street, Suite 100 · Charlotte, NC 28203Direct: 704-887-4617 · Mobile: [phone]harthickman.com

From: Foster, Rob <[e-mail]>
Sent: Tuesday, December 6, 2022 2:00 PM
To: Matt Ingalls <[e-mail]>; Bobby Drakeford <[e-mail]>; Scott Carr
<[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

Matt,

We can complete the transfer request, just waiting to hear from the Geotech engineer.

Rob

From: Matt Ingalls <[e-mail]>
Sent: Tuesday, December 6, 2022 1:56 PM
To: Bobby Drakeford <[e-mail]>; Scott Carr <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>; Foster, Rob
<[e-mail]>
Subject: RE: BF Fill Soil

CAUTION: External email. Please do not click on links/attachments unless you know the content is genuine and safe.
Bobby – please note that written approval is required from DEQ prior to transfer of soil from the Double Oaks BF site to
another BFs property (see below). The letter I sent to Rob Foster on 11/29 was an approval letter that allowed the PD to
send soil to an LCID landfill. However, you will need to get written approval from DEQ prior to transfer of soil to your
site. Is Rob handling this approval on your behalf or do you need us to assist?

Matt Ingalls, Sr. Project Manager and Shareholder
Hart & Hickman, PC
2923 S Tryon Street, Suite 100 · Charlotte, NC 28203
Direct: 704-887-4617 · Mobile: [phone]harthickman.com

From: Bobby Drakeford <[e-mail]>
Sent: Tuesday, December 6, 2022 10:30 AM
To: Scott Carr <[e-mail]>; Matt Ingalls <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

Matt / David,

We should be ready for some soils next week if its still available.

Thanks,

Bobby Drakeford
1914 Brunswick Ave., 1A
Charlotte, NC 28207
[phone] x-302 (O) [phone] (C) [phone] (F)
www.tdcrealestate.com

From: Scott Carr
Sent: Tuesday, November 29, 2022 2:25 PM
To: Matt Ingalls <[e-mail]>; Bobby Drakeford <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

David and Matt,

This not for Camp North End it is for a site across the street we are partners in that Bobby Drakeford is developing. Bobby
is cc’d. Bobby’s site is going to need good fill and they have a topsoil they are trying to get rid of. Bobby can give you any
required Geotech or Brownfield’s info. Do you know if the soil you are trying to get rid of is good fill or not? It would be
good for Bobby to know before he spends more money on trying to see if this would work for everyone or not.

Scott Carr
Director of Construction
Camp North End
[e-mail]
C: 704.682-7159
Instagram | Facebook
cne_sec_lockup_min_color

From: Matt Ingalls <[e-mail]>
Sent: Tuesday, November 29, 2022 2:10 PM
To: Scott Carr <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: BF Fill Soil

EXTERNAL SENDER
Scott – see below information and attached geotechnical reports from the Atando BFs site, a potential export site of BFs
soil.

Atando BFs property – Double Oaks (BWR-013, Double Oaks BFs Property [#11037-07-060], DEQ PM – Carolyn
Minnich, PD contact– David Belk w/ Beauxwright [704-441-2455, [e-mail]]) – is located off of
Newland Avenue and has approximately 2,000-3,000 CYs for export immediately.

I copied David Belk (w/ Beauwright) who owns the export soil. Can you provide soil data reports from the BFs property
that may need soil such that we can obtain the required written approval from Carolyn Minnich w/ DEQ?

Thank

[us01.z.antigena.com]
Matt Ingalls, Sr. Project Manager and Shareholder
Hart & Hickman, PC
2923 S Tryon Street, Suite 100 · Charlotte, NC 28203
Direct: 704-887-4617 · Mobile: [phone]harthickman.com[us01.z.antigena.com] [linkedin.com]

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-LAEmHhHzdJzBlTWfa4Hgs7pbKl
From:Bobby Drakeford
To:Foster, Rob
Subject:RE: BF Fill Soil
Date:Tuesday, December 20, 2022 7:14:11 AM
Attachments:image001.pngimage004.pngimage005.png
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safe.
Yes, correct I want it.

I told them it would be mid to late January when we are ready.

Thanks,

Bobby Drakeford
1914 Brunswick Ave., 1A
Charlotte, NC 28207
[phone] x-302 (O) [phone] (C) [phone] (F)
www.tdcrealestate.com

From: Foster, Rob
Sent: Tuesday, December 20, 2022 6:58 AM
To: Bobby Drakeford <[e-mail]>
Subject: RE: BF Fill Soil

See below, so just to make sure, you do want this dirt correct?

From: David Belk <[e-mail]>
Sent: Monday, December 19, 2022 10:24 AM
To: Matt Ingalls <[e-mail]>; Foster, Rob <[e-mail]>; Bobby Drakeford
<[e-mail]>; Scott Carr <[e-mail]>
Cc: Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

CAUTION: External email. Please do not click on links/attachments unless you know the content is genuine and safe.
Good morning Rob,

Checking in to see how this process is going.

Thank you,

David

DAVID BELK
Development Manager
WE’VE MOVED! OUR NEW ADDRESS IS:
1900 West Morehead St., Suite 201
Charlotte, North Carolina 28208

704.441.2455
[e-mail]
beauxwright.com

From: Matt Ingalls <[e-mail]>
Sent: Tuesday, December 6, 2022 2:05 PM
To: Foster, Rob <[e-mail]>; Bobby Drakeford <[e-mail]>; Scott Carr <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

Thanks Rob. Carolyn Minnich is our DEQ PM for the Double Oaks BF site. Should be an easy approval as not much impact
identified during assessment of the soil pile that we conducted previously for the former Site owner Dream Key Partners
(see attached report).

Matt Ingalls, Sr. Project Manager and Shareholder
Hart & Hickman, PC
2923 S Tryon Street, Suite 100 · Charlotte, NC 28203
Direct: 704-887-4617 · Mobile: [phone]harthickman.com

From: Foster, Rob <[e-mail]>
Sent: Tuesday, December 6, 2022 2:00 PM
To: Matt Ingalls <[e-mail]>; Bobby Drakeford <[e-mail]>; Scott Carr
<[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

Matt,

We can complete the transfer request, just waiting to hear from the Geotech engineer.

Rob

From: Matt Ingalls <[e-mail]>
Sent: Tuesday, December 6, 2022 1:56 PM
To: Bobby Drakeford <[e-mail]>; Scott Carr <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>; Foster, Rob
<[e-mail]>
Subject: RE: BF Fill Soil

CAUTION: External email. Please do not click on links/attachments unless you know the content is genuine and safe.
Bobby – please note that written approval is required from DEQ prior to transfer of soil from the Double Oaks BF site to
another BFs property (see below). The letter I sent to Rob Foster on 11/29 was an approval letter that allowed the PD to
send soil to an LCID landfill. However, you will need to get written approval from DEQ prior to transfer of soil to your
site. Is Rob handling this approval on your behalf or do you need us to assist?

Matt Ingalls, Sr. Project Manager and Shareholder
Hart & Hickman, PC
2923 S Tryon Street, Suite 100 · Charlotte, NC 28203
Direct: 704-887-4617 · Mobile: [phone]harthickman.com

From: Bobby Drakeford <[e-mail]>
Sent: Tuesday, December 6, 2022 10:30 AM
To: Scott Carr <[e-mail]>; Matt Ingalls <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

Matt / David,

We should be ready for some soils next week if its still available.

Thanks,

Bobby Drakeford
1914 Brunswick Ave., 1A
Charlotte, NC 28207
[phone] x-302 (O) [phone] (C) [phone] (F)
www.tdcrealestate.com

From: Scott Carr
Sent: Tuesday, November 29, 2022 2:25 PM
To: Matt Ingalls <[e-mail]>; Bobby Drakeford <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: RE: BF Fill Soil

David and Matt,

This not for Camp North End it is for a site across the street we are partners in that Bobby Drakeford is developing. Bobby
is cc’d. Bobby’s site is going to need good fill and they have a topsoil they are trying to get rid of. Bobby can give you any
required Geotech or Brownfield’s info. Do you know if the soil you are trying to get rid of is good fill or not? It would be
good for Bobby to know before he spends more money on trying to see if this would work for everyone or not.

Scott Carr
Director of Construction
Camp North End
[e-mail]
C: 704.682-7159
Instagram | Facebook

From: Matt Ingalls <[e-mail]>
Sent: Tuesday, November 29, 2022 2:10 PM
To: Scott Carr <[e-mail]>
Cc: David Belk <[e-mail]>; Andrew Besu <[e-mail]>
Subject: BF Fill Soil

EXTERNAL SENDER
Scott – see below information and attached geotechnical reports from the Atando BFs site, a potential export site of BFs
soil.

Atando BFs property – Double Oaks (BWR-013, Double Oaks BFs Property [#11037-07-060], DEQ PM – Carolyn
Minnich, PD contact– David Belk w/ Beauxwright [704-441-2455, [e-mail]]) – is located off of
Newland Avenue and has approximately 2,000-3,000 CYs for export immediately.

I copied David Belk (w/ Beauwright) who owns the export soil. Can you provide soil data reports from the BFs property
that may need soil such that we can obtain the required written approval from Carolyn Minnich w/ DEQ?

Thank

[us01.z.antigena.com]
Matt Ingalls, Sr. Project Manager and ShareholderHart & Hickman, PC2923 S Tryon Street, Suite 100 · Charlotte, NC 28203Direct: 704-887-4617 · Mobile: [phone]harthickman.com[us01.z.antigena.com] [linkedin.com]

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-LAEmHhHzdJzBlTWfa4Hgs7pbKl
Soil Transfer Request December 20, 2022 WSP Project: 6228-17-0442

NCDEQ RISK CALCULATOR OUTPUT
Exposure Point ConcentrationsVersion Date: July 2022Basis: May 2022 EPA RSL TableSite ID: North End Square II with Double Oaks ImportExposure Unit ID: NOTE: If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsExposure Point Concentration (mg/kg)Notes: CAS NumberChemicalFor the chemicals highlighted in blue, data entry notes are provided in the PSRG Table link on the Main MenuMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion0.27 67-64-1Acetonemg/kg3 7440-38-2Arsenic, Inorganicmg/kg230 7440-39-3Bariummg/kg0.7 7440-43-9Cadmium (Diet)mg/kg4.9 18540-29-9Chromium(VI)mg/kg190 7439-92-1~Lead and Compoundsmg/kg0.15 7439-97-6~Mercury (elemental)mg/kg0.14 56-55-3~Benz[a]anthracenemg/kg0.17 50-32-8~Benzo[a]pyrenemg/kg0.2 205-99-2~Benzo[b]fluoranthenemg/kg0.074 207-08-9~Benzo[k]fluoranthenemg/kg0.14 218-01-9~Chrysenemg/kg0.22 206-44-0~Fluoranthenemg/kg0.24 129-00-0~Pyrenemg/kg0.23 7782-49-2Seleniummg/kg0.16 7440-22-4Silvermg/kg0.029 108-88-3Toluenemg/kgInput Form 2ASoil Exposure Point Concentration TableDescription of Exposure Point Concentration Selection:North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2022
Basis: May 2022 EPA RSL Table
Site ID: North End Square II with Double Oaks Import
Exposure Unit ID:
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Soil 2.2E-05 2.4E-01 NO
Groundwater Use* NC NC NC
Soil 1.8E-06 2.0E-02 NO
Groundwater Use* NC NC NC
Construction Worker Soil 1.5E-06 1.4E-01 NO
Soil 1.2E-05 1.3E-01 NO
Surface Water* NC NC NC
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NM
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
North Carolina DEQ Risk Calculator
Exposure Point ConcentrationsVersion Date: July 2022Basis: May 2022 EPA RSL TableSite ID: North End Square IIExposure Unit ID: NOTE: If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsExposure Point Concentration (mg/kg)Notes: CAS NumberChemicalFor the chemicals highlighted in blue, data entry notes are provided in the PSRG Table link on the Main MenuMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion0.27 67-64-1Acetonemg/kg3 7440-38-2Arsenic, Inorganicmg/kg230 7440-39-3Bariummg/kg0.7 7440-43-9Cadmium (Diet)mg/kg4.9 18540-29-9Chromium(VI)mg/kg190 7439-92-1~Lead and Compoundsmg/kg0.15 7439-97-6~Mercury (elemental)mg/kg0.14 56-55-3~Benz[a]anthracenemg/kg0.17 50-32-8~Benzo[a]pyrenemg/kg0.2 205-99-2~Benzo[b]fluoranthenemg/kg0.074 207-08-9~Benzo[k]fluoranthenemg/kg0.14 218-01-9~Chrysenemg/kg0.22 206-44-0~Fluoranthenemg/kg0.24 129-00-0~Pyrenemg/kg0.23 7782-49-2Seleniummg/kg0.16 7440-22-4Silvermg/kgInput Form 2ASoil Exposure Point Concentration TableDescription of Exposure Point Concentration Selection:North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2022
Basis: May 2022 EPA RSL Table
Site ID: North End Square II
Exposure Unit ID:
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Soil 2.2E-05 2.4E-01 NO
Groundwater Use* NC NC NC
Soil 1.8E-06 2.0E-02 NO
Groundwater Use* NC NC NC
Construction Worker Soil 1.5E-06 1.4E-01 NO
Soil 1.2E-05 1.3E-01 NO
Surface Water* NC NC NC
Receptor Pathway
Carcinogenic
Risk Hazard Index Risk exceeded?
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air NC NC NC
Indoor Air NC NC NC
Pathway Source
Source Soil NM
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not calculated
2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the
NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based
closure.
Surface Water Exceedence of 2B at Receptor?
Exceedence of 2B at Receptor?
VAPOR INTRUSION CALCULATORS
Resident
Non-Residential Worker
CONTAMINANT MIGRATION CALCULATORS
Target Receptor Concentrations Exceeded?
Groundwater Exceedence of 2L at Receptor?
Exceedence of 2L at Receptor?
1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead
concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations.
Notes:
DIRECT CONTACT SOIL AND WATER CALCULATORS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator