18015_Craighead Road_VMS Installation Report for Building 1 and DEQ Vapor Mitigation Compliance Review Letter_2020.03.11

March 11, 2020
Sent Via E-mail
Joseph A. Fielden Jr.
Philemon NoDa Partners, LLC 308 East Craighead Road Charlotte, NC 28206 [e-mail]

Subject: Vapor Mitigation Compliance Review Craighead Road (Abernethy Lumber): Building 1 308 E. Craighead Rd and 3712 Philemon Ave Charlotte, Mecklenburg County
Brownfields Project No. 18015-14-060
Dear Mr. Fielden: The North Carolina Department of Environmental Quality (DEQ) Brownfields Program received
and reviewed the Request for Occupancy / VIMS Construction Completion – Building 1 (Revision
2) (Report) dated March 6, 2020 prepared by Hart & Hickman, PC for the above referenced Brownfields Property. The Report indicates that the installation of the vapor mitigation system was conducted in accordance with the requirements of the approved Vapor Intrusion Mitigation Plan (Work Plan) dated May 23, 2017, and Request for VMP Modification dated February 25,
2019 (Work Plan Modification). Based on these documents, the DEQ Brownfields Program has
determined that Building 1 as described in the Report is currently in compliance with Land Use Restriction 4.b. of the Notice of Brownfields Property. It should be noted that the Report also included a summary of sub-slab vapor assessment which
was conducted voluntarily. While these data were not required by the approved Work Plan nor
Work Plan Modification, the data was evaluated using the DEQ Risk Calculator (May 2019) in the Report and the results of this evaluation were below the DEQ thresholds for residential use. DEQ Brownfields understands that that ongoing monitoring will be conducted in accordance with
the approved Work Plan and Work Plan Modification.

Mr. Fielden
March 11, 2020 Page 2
Please be advised that this review from DEQ Brownfields does not waive any applicable requirement to obtain any necessary permits, licenses or certifications which may be required from
other state or local entities. If you have any questions, please feel free to contact me at 919-707-8382, or via e-mail at [e-mail].
Sincerely,
Sarah Hardison Young Project Manager Brownfields Property Management Unit
ec: Joselyn Harriger, PG, DEQ
Kevin Slaughter, DEQ Trinh DeSa, PE, Hart & Hickman, PC

Via Email
March 6, 2020
NCDEQ – Division of Waste Management Brownfields Program 1646 Mail Service Center Raleigh, NC 27699-1646
Attn: Ms. Carolyn Minnich and Ms. Joselyn Harriger Re: Request for Occupancy / VIMS Construction Completion – Building 1 (Revision 2) Craighead Road (Abernethy Lumber) Brownfields Site NoDa Village Apartment Community
Charlotte, Mecklenburg County, North Carolina Brownfields Project No. 18015-14-060 H&H Project No. SHR-001
Dear Carolyn and Joselyn: 1.0 Introduction

On behalf of Philemon NoDa Partners, LLC, Hart & Hickman, PC (H&H) has prepared this revised
(Revision 2) letter report summarizing vapor intrusion mitigation system (VIMS) inspection, pre-
occupancy testing, and sampling activities conducted for Building 1 at the NoDa Village
Apartment Community at the Craighead Road (Abernethy Lumber) Brownfields property
(Brownfields Project No. 18015-14-060) in Charlotte, Mecklenburg County, North Carolina (Site).
The Site is being redeveloped with two four-story buildings containing multi-family residential
spaces, attached amenity buildings, an attached leasing office, an outdoor pool/courtyard, urban
greenspace, asphalt-paved parking, and landscaped areas.

Building 1 is an apartment building consisting of four (4) levels with multiple residential tenant
spaces on each level. The ground floor of Building 1 is approximately 47,000 square feet and is
divided into five sections (Building 1A through Building 1E). The ground floor level of Building
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1A contains amenity spaces and the apartment community leasing center and the ground floor
levels of the remaining building sections contain residential apartments. The five sections of
Building 1 are being constructed in stages. The estimated ground floor area each of the Building
1 sections is listed in the following table.

Building 1 Section Approximate Ground Floor Area (square feet) Building 1A 7,700
Building 1B 7,800
Building 1C 8,800
Building 1D 13,500
Building 1E 9,200

A Request for Occupancy / VIMS Construction Completion report for Building 1, dated November
9, 2019 was submitted to the North Carolina Department of Environmental Quality (DEQ)
Brownfields Program. Comments and a request for a revised report were received from DEQ on
November 26, 2019.

H&H conducted VIMS inspection and pre-occupancy testing activities in accordance with the
Vapor Mitigation Plan (VMP) Revision 1 dated May 23, 2017 and approved by DEQ on May 24,
2017. Furthermore, although not required in the DEQ-approved VMP, H&H and Philemon NoDa
Partners, LLC elected to conduct sub-slab analytical sampling from below the concrete slabs of
each section of Building 1 to further evaluate potential vapor intrusion risks associated with the
building.

In addition, an addendum to the VMP, Request for VMP Modifications dated February 25, 2019,
was approved by DEQ on February 28, 2019. This addendum included modifications to the type
of vapor barrier and to the sub-slab piping to accommodate the staged construction. The vapor
barrier was modified from the proposed Stego Industries, LLC, 15-mil Stego-Wrap® vapor barrier
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to the Raven Industries (Raven) VaporBlock® VB15 vapor barrier, an equivalent 15-mil vapor
barrier. In addition, the sub-slab VIMS vent piping was modified to avoid crossing the thickened
footers that separate the building sections of Building 1 and to provide separate sub-slab
depressurization under each of the building sections due to the staged construction schedule.
Building 2 at the Site is currently under construction and a separate request for occupancy will be
submitted for this building at a later date once construction of the VIMS is complete.
Based on the results of the inspection, testing, and sampling activities, H&H is requesting that
DEQ grant occupancy for Building 1. The Site Layout Map is provided as Figure 1 and VIMS
As-Built Drawings for Building 1 are included as VMP-1, VMP-2 and VMP-3 in Appendix A.
The Vapor Intrusion Mitigation Plan (VIMP) Master Summary is included as Table 1.
Representative photos of the VIMS installation are included as Appendix B. A summary of
the VIMS installation inspection, pre-occupancy testing, and sampling activities is provided in
the following sections.
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2.0 VIMS Inspections, Testing, and Sampling
The VIMS under Building 1 are comprised of five active sub-slab depressurization systems
utilizing a vent pipe system and RadonAway RP-145 electric fans coupled with the Raven VB-15
15-mil vapor barrier installed below the ground floor concrete slab of the entire building. The
ground floor contains slab-on-grade construction with thickened footers located below load
bearing walls and tenant separation walls.

As described in Section 1.0, during construction planning activities for the Site buildings, the
general contractor indicated Building 1 would be constructed in five sections (Buildings 1A
through 1E), with different completion dates for each section. Therefore, to provide for an
effective VIMS in each building section, H&H and Philemon NoDa Partners, LLC elected to
separate the VIMS sub-slab piping into sections at the thickened slabs that separate each building
section. Additionally, per approval of the design engineer, the sub-slab VIMS slotted vent piping
was increased from 3-inch Schedule 40 PVC to 4-inch Schedule 40 PVC to allow for increased air
flow below the slab of Building 1.

During construction activities, H&H conducted VIMS inspections, pre-occupancy testing, and
sub-slab analytical sampling activities (although not required in the DEQ-approved VMP) which
are summarized in the following sections.

2.1 VIMS Inspections

Between March 15, 2019 and October 22, 2019, H&H conducted VIMS inspections of Building 1
during the following four stages of construction:

1. after completion of the sub-slab piping and gravel layout (Inspection 1);
2. after placement of the Raven VB-15 vapor barrier on top of the piping layout and gravel
layer (Inspection 2);
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3. after installation of above-grade riser piping within the building (Inspection 3); and
4. after installation of the fan and vacuum alarms (Inspection 4).

Note that during H&H’s inspections of the VIMS, H&H conducted two re-inspections of Building
1A, two re-inspections of Building 1B, four re-inspections of Building 1C, three re-inspections of
Building 1D, and three re-inspections of Building 1E due to the following:

Building 1A
1) During an inspection of the Building 1A (Inspection 1) conducted on March 27, 2019,
H&H noted that a section of solid VIMS piping which crossed under a utility conduit would
likely accumulate water. H&H also noted that sub-slab VIMS piping was not present in
an area with a depressed slab which was scheduled to be poured at a later date. H&H
conducted a follow up inspection of Building 1A sub-slab piping on March 28, 2019 and
confirmed that the sub-slab piping had been properly diverted around the utility conduit.

2) A second follow up inspection of the sub-slab piping of Building 1A in the depressed area
was conducted on May 31, 2019 and H&H confirmed that the sub-slab piping had been
properly installed.

3) On April 20, 2019, some additional tape and sealing was required for portions of the vapor
barrier. A follow-up inspection by H&H conducted on the same day indicated the vapor
barrier was properly installed.

Building 1B
1) During an inspection (Inspection 1) conducted on March 27, 2019, H&H noted that gravel,
thickened slab crossings, and VIMS sub-slab piping was not present in several areas. H&H
conducted a follow up inspection the following day and confirmed that sub-slab piping,
including the thickened slab crossings, was properly installed and that adequate gravel was
present.
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2) During an inspection (Inspection 2) conducted on April 3, 2019, H&H noted that the vapor
barrier was not properly sealed around the edges of the slab. H&H conducted a follow up
inspection of the vapor barrier later that day and confirmed that the vapor barrier had been
properly sealed.

Building 1C
1) During an inspection (Inspection 1) conducted on March 22, 2019, H&H noted that gravel
and thickened slab connector piping was not present in several areas. H&H conducted a
follow up inspection later that day and confirmed that sub-slab piping, including the
thickened slab crossings, was properly installed and that adequate gravel was present.

2) During an inspection (Inspection 2) conducted on March 27, 2019, H&H noted that the
vapor barrier was not properly sealed in overlap areas and that vapor barrier did not extend
far enough at the edges of the slab. H&H conducted a follow up inspection of the vapor
barrier the following day and confirmed that the vapor barrier had been properly installed.

3) During an inspection (Inspection 3) conducted on August 19, 2019, H&H noted that the
riser piping of fan F-9 did not have the correct pitch to drain water. H&H conducted a
follow up inspection on September 3, 2019 and confirmed that the riser pitch had been
corrected that the risers had been properly installed.

4) During an inspection (Inspection 4) conducted on August 22, 2019, H&H noted that fan F-
14 was not connected to power. H&H conducted a follow up inspection of fan F-14 the
following day and confirmed that it had been connected to power and was operational.

Building 1D
1) During an inspection (Inspection 1) conducted on March 15, 2019, H&H noted that
sufficient gravel was not present below the slab. H&H conducted a follow up inspection
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on March 18, 2019 and confirmed that sub-slab piping was properly installed and that
adequate gravel was present.

2) During an inspection (Inspection 2) conducted on March 19, 2019, H&H noted that the
vapor barrier did not extend far enough at the edges of the slab and that several penetrations
were not sealed. H&H conducted a follow up inspection of the vapor barrier the following
day and confirmed that the vapor barrier had been properly installed.

3) During an inspection (Inspection 3) conducted on August 19, 2019, H&H noted that the
riser piping of fans F-12 and F-17 did not have the correct pitch to drain water.
Additionally, H&H noted that the riser piping of fan F-13 had been inadvertently reduced
to 2-inches on the fourth floor. H&H conducted a follow up inspection of the riser piping
on August 21, 2019 and noted that repairs to the riser piping were not completed. H&H
conducted a second follow up inspection of the riser piping on September 3, 2019 and
confirmed that repairs were adequate and that the riser piping had been properly installed.

Building 1E
1) During an inspection (Inspection 1) conducted on March 15, 2019, H&H noted that
sufficient gravel was not present below the slab. H&H conducted a follow up inspection
on March 18, 2019 and confirmed that sub-slab piping was properly installed and that
adequate gravel was present.

2) During an inspection (Inspection 2) conducted on March 19, 2019, H&H noted that the
vapor barrier did not extend far enough at the edges of Section E and that several
penetrations were not sealed. H&H conducted a follow up inspection of the vapor barrier
the following day and confirmed that the vapor barrier had been properly installed.

3) During an inspection (Inspection 3) conducted on August 19, 2019, H&H noted that the
riser piping of fans F-21 did not have the correct pitch to drain water. H&H conducted a
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follow up inspection of the riser piping on September 3, 2019 and confirmed that the riser
pitch had been corrected that the risers had been properly installed.

After completion of inspection and re-inspection activities, H&H concluded that the VIMS within
each of the Building 1 sections were properly installed by the contractor and were equipped with
electric (active) mitigation fans in accordance with the DEQ-approved VIMP. VIMS Inspection
Logs are included in Appendix C. A photographic log with representative photographs of the
VIMS installation are included in Appendix B.

2.2 Pilot Influence Testing
On April 17, 2019 and July 1, 2019, H&H conducted “pilot” influence testing on the vent network
installed below the concrete slab of Building 1 to verify that adequate communication was present
between the sub-slab annular space and the VIMS. During influence testing, H&H utilized
temporary vapor extraction fans, including RadonAway RP-145 and AMG Legend fans, which
were attached to the vertical riser piping. Prior to turning the fans on, vacuum measurements were
collected at each monitoring point to establish baseline conditions. After baseline conditions were
recorded, the fans were activated. A Dwyer series 475 Mark III Digital manometer (capable of
measuring to 0.001 inches of water column (in-WC) or 0.25 Pascals [Pa]) was then connected to
each pressure measuring port via Teflon tubing to record differential pressures. H&H collected
vacuum measurements at each monitoring point in Building 1 over varied time intervals. The table
below provides a summary of influence testing results for each building section.

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Building 1 Section Influence Testing Date Vacuum Range Measured from
Monitoring Points (Pascals)
Building 1A July 1, 2019 102-134
Building 1B April 17, 2019 87-137
Building 1C July 1, 2019 123-125
Building 1D April 17, 2019 69-113
Building 1E April 17, 2019 135-148

Results of the influence testing indicate that differential pressures measured at the observation
points during the testing are significantly above the minimum depressurization reading (4 Pa)
deemed acceptable by DEQ Brownfields to demonstrate that the VIMS is sufficiently
depressurizing the sub-slab.

Sub-Slab VIMS Pilot Test field logs summarizing vacuum and flow measurements collected at
each vapor extraction point location and differential pressure measurements collected at each
observation (pressure monitoring) point during the testing are provided in Appendix C. Building
1 as-built drawings which identifies the vapor extraction and monitoring point locations are
provided in Appendix A.

2.3 Vacuum Monitoring Data

As requested by DEQ, pre-occupancy vacuum measurements were conducted from each
monitoring point in Building 1 on January 13, 2020. In addition, each vacuum fan in Building 1
was checked by H&H and verified to be properly functioning. The vacuum measurements with
each fan operational ranged from 51.3 to 100.1, which is notably higher than the minimum 4 Pa
required by DEQ to demonstrate sufficient sub-slab depressurization is present below the building.
The vacuum monitoring data is presented on Table 2.
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2.4 Sub-Slab Vapor Sampling Procedure
After completion of the VIMS components including installation of the electric fans, H&H
collected sub-slab vapor samples from below the ground floor slab of Building 1 on October 28
and November 1, 2019. As stated earlier, the collection of analytical samples was not required by
the approved-VMP, but the sub-slab samples were collected to further provide an evaluation of
potential vapor intrusion risk below the building. A total of 10 parent samples were collected from
below Building 1. In addition, one duplicate sample was collected from the SS-1A_MP-2 parent
sample for quality assurance / quality control (QA/QC) purposes. The individual samples
collected from each building section are indicated in the table below.

Building 1 Section Sample Names
Building 1A SS-1A MP-3; SS-1A_MP-2 (DUP-1)
Building 1B SS-1B_MP-2; SS-1B_MP-3
Building 1C SS-1C_MP-1; SS-1C MP-2*
Building 1D SS-1D_MP-2; SS-1D_MP-5
Building 1E SS-1E_MP-1; SS-1E_MP-3*
*Sample data for SS-1C MP-2 and SS-1E_MP-3 may be suspect. See description below.

The sub-slab samples were collected from select permanent vacuum monitoring points that are
screened within the gravel layer beneath the vapor barrier in Building 1. Recommended procedures
presented in the DEQ Division of Waste Management (DWM) Vapor Intrusion (VI) Guidance
were used to collect the samples. Briefly, a temporary expandable plug was placed within the
sample port into the point to create an air-tight seal. Prior to sample collection, H&H conducted a
leak test at each vacuum measuring point by placing a shroud around the point and entire sampling
train including the Summa canister, regulator, and sampling apparatus. The air within the shroud
was saturated with helium gas. Soil gas was then purged from the sampling point with an air pump
(Gilian GilAir-3, or similar) into a Tedlar® bag. A helium gas detector was used to measure
helium concentrations in the shroud and bag. The leak test was considered successful if the helium
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concentration measured in the soil gas purged from the sampling point was less than 10% of the
concentration measured in the shroud. Successful completion of this leak check ensured that short-
circuiting at the sample point did not occur and that the data collected accurately represented soil
gas concentrations. Sub-Slab Soil Gas Field Forms are included in Appendix C. Following a
successful leak check, the sub-slab vapor samples were collected into either batch-certified 1-liter
or 6-liter stainless steel Summa canisters connected to an airflow regulator preset by the laboratory
to collect vapor at an approximate flow rate of 0.1 L/min for a 10-min or 60-min sampling period.
Prior to sample collection, a shut-in test of the Summa canister and sample regulator was
performed to ensure the integrity of the canister and regulator. During the sample collection,
vacuum inside the summa canisters were recorded prior to and following the sampling period to
ensure adequate sample volume was collected.

As recorded on the Sub-Slab Soil Gas Field Forms, the helium check on sample SS-1A MP-3 from
10/28/19 indicated a helium concentration was greater than 10% of the concentration in the shroud,
thereby indicating air short-circuiting of the sampling point may have occurred. Therefore, this
sample canister was not submitted for analysis. A new sample from this location was collected on
11/1/19, and was sampled following a successful leak test. Two other samples, SS-1C MP-2 and
SS-1E_MP-3, from Buildings 1C and 1E, respectively, contained a discrepancy on the sampling
field form. The helium purge concentrations were recorded as >20,000 ppm for each of these
samples. However, the helium detector used during the sampling (Dielectric Model MGD-2002)
only reads in ppm levels up to 20,000 ppm, at which time the detector switches to reading percent
(%) levels. Therefore, the recorded helium purge concentrations were likely misidentified during
the sampling and were likely lower than recorded. However, due to the discrepancy, the analytical
data from these samples may be suspect due to potential short circuiting and are included for
comparison purposes only. Two additional samples, SS-1C MP-1 (Building 1C) and SS-1E-MP-
1 (Building 1E) were successfully collected from these same building areas with passing leak tests
results which provide representative sub-slab soil gas data for Building 1C and Building 1E.

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The samples were submitted for analysis of select volatile organic compounds (VOCs) by EPA
Method TO-15 to Pace Analytical Services (samples collected on 10/28/19) and Con-Test
Analytical Laboratory (samples collected on 11/01/19), both of which are nationally accredited
laboratories. The select VOC list is included on Table 1 and included VOC compounds that were
previously detected in groundwater, soil vapor, or soil from previous assessment activities
conducted at the Site as reported in the Environmental Management Plan (EMP) dated February
21, 2017.

The laboratory analytical results were compared to the DEQ DWM Residential Sub-Slab and
Exterior Soil Gas Screening Levels (SGSLs) dated February 2018. A tabular summary of the post
VIMS construction sub-slab soil gas analytical results is presented in Table 1. The laboratory
analytical reports with chain of custody records are provided as Appendix D.

To further evaluate the detected VOCs, H&H input the concentrations of the compounds detected
in each sub-slab vapor sample into the DEQ Risk Calculator (May 2019 Version). A summary of
the calculated Lifetime Incremental Cancer Risks (LICRs) and Hazard Index (HI) values are
provided in Table 1 and copies of the risk calculator summary pages are provided in Appendix E.
Note, as a conservative measure, the higher of the detected concentration for each constituent in
the parent and duplicate samples from Building 1A (SS-1A_MP-2) were used in the risk calculator.

2.5 Sub-Slab Vapor Sampling Results
The results of analysis indicate that several VOCs were detected at low concentrations above
laboratory method detection limits (MDLs) in the samples from each of the monitoring points. No
compounds were detected at concentrations above Residential SGSLs in any of the samples. In
two of the samples, SS-1A MP-3 and SS-1C MP-2, the compound 1,2,3-trimethylbenzene was
detected as a tentatively identified compound (TIC). Con-Test, the laboratory who analyzed these
samples, is only able to report this compound as a TIC. Per laboratory procedure, the compound
was reported in parts per billion – vapor (ppbv) in the laboratory report instead of micrograms per
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cubic meter, (µg/m3). Pace, the laboratory that analyzed the other samples, is able to report 1,2,3-
trimethylbenzene as a standard compound in µg/m3. For direct comparison and use in the risk
calculators, the ppbv concentrations reported by Con-Test were converted to µg/m3 using an EPA
online calculator and standard temperature and atmospheric pressures that are consistent with
standard laboratory calculations.

The risk calculators indicated the calculated LICRs for the sub-slab vapor samples ranged from
1.4 x 10-6 to 3.9 x 10-6, which are notably below the acceptable risk level of 1 x 10-4. The calculated
HI for each of the sub-slab vapor samples ranged from 0.027 to 0.15, which are below the
acceptable threshold level of 1. The two samples, SS-1C MP-2 and SS-1E MP-3, that are included
for comparison purposes only (see Section 2.4), had similar risk levels to the other samples.

The calculated LICRs and HI for each of the samples and individual building sections are
summarized in Table 1. Based upon the risk calculations, VOC vapor concentrations detected
below the footprint of Building 1 do not appear to pose an unacceptable risk to future residential
occupants of the building.

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3.0 Summary and Recommendations

Based on the results of our recent VIMS inspections, testing, and sampling activities, H&H
certifies that the VIMS associated with Building 1 at the Noda Village Apartment Community at
the Craighead Road (Abernethy Lumber) Brownfields Site has been properly installed per the
approved VIMP and there is adequate sub-slab depressurization from the VIMS. In addition, based
upon the sub-slab vapor sampling results, the VOC vapor concentrations detected in the sub-slab
below each of the five Building 1 sections (Building 1A through 1E) do not appear to pose an
unacceptable risk to future residential occupants of the building. Therefore, H&H requests that
the DEQ Brownfields Program grant occupancy for Building 1.

In accordance with the approved VIMP, the building maintenance department will perform a
monthly operational and maintenance (O&M) check on the electric fans to ensure proper operation
and function after the building is complete. Inoperable or damaged fans, or other deficiencies
related to the vapor intrusion mitigation system discovered during the O&M visits, shall be
immediately reported to H&H, or the current owner’s environmental consultant. The O&M checks
and any repairs or modifications will be recorded on the Monthly Fan O&M Form provided in
Appendix C. These forms will be submitted to DEQ on an annual basis.

While the monthly O&M checks will ensure proper operation of the electric fans, in addition to
these checks, per DEQ request, quarterly vacuum monitoring events will be conducted during the
first year of operation with the pre-occupancy vacuum monitoring event serving as the first
quarterly event. The quarterly vacuum monitoring data will be emailed to DEQ following each
event. In addition, the monthly O&M data will be reported to DEQ during the annual Land Use
Restriction (LURU) update. Following the first year of operation, an evaluation of the system
operation will be conducted by a North Carolina Professional Engineer to provide
recommendations for a change in frequency of the O&M checks and vacuum monitoring events.
This evaluation will be submitted to DEQ for approval prior to modifications to the system
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monitoring. At a minimum, annual vacuum monitoring checks will be required by DEQ after the
first year of operation.
If you have any questions or require additional information, please do not hesitate to contact us
at 704-586-0007.
Sincerely,
Hart & Hickman, PC
Andrew Besu Trinh DeSa, PE
Assistant Project Geologist Senior Project Engineer
Brett Lawrence, PG Senior Project Geologist
#C1269 – Engineering #C245 - Geology
Attachments: Table 1 – Vapor Intrusion Mitigation Plan Master Summary
Table 2 – Quarterly Vacuum Monitoring Data
Figure 1 – Site Layout Map
Appendix A – Building 1 VIMS As-Built Drawings (VMP-1, VMP-2, and VMP-3)
Appendix B – Photographic Log
Appendix C – VIMS Inspection Forms and Field Logs
Appendix D – Analytical Laboratory Reports
Appendix E – Sub-Slab Soil Gas Risk Calculators
Table 1Vapor Intrusion Mitigation Plan Master Summary Former Abernethy LumberBrownfields Project No. 18015-14-060 Charlotte, NCH&H Project: SHR-001Date of Most Recent Update - 1/28/20BuildingSectionVIMS Construction Inspection & Completion*Sub-grade Vapor Vent*Vapor Barrier - GeosealAbove-Grade Riser Piping & Labels**Ventilator FansPilot Test Pilot Test Pass Date Vacuum Range at Monitoring Point (Pascals)Sub-Slab Sampling Results Sample ID SS-1A MP-3SS-1B_MP-2 SS-1B_MP-3 SS-1C_MP-1 SS-1C MP-2** SS-1D_MP-2 SS-1D_MP-5 SS-1E_MP-1 SS-1E_MP-3** --------Sample Date 11/1/201910/28/2019 10/28/2019 10/28/2019 11/1/2019 10/28/2019 10/28/2019 10/28/2019 10/28/2019 --------VOCs by TO-15 (µg/m3)µg/m3Acetone14 J12.926.036.920.231.62024.621.818.919.7--------220,000Benzene6.4<0.342.30.52 J 0.37 J 0.52 J9.4<0.320.36 J<0.37<0.35--------120n-Butylbenzene<0.728.28.2 J<2.46.2 J30.9<0.7266.3<2.3<2.7<2.6--------NSCarbon Disulfide<0.43 <0.4816.312.65.21.3 J<0.43<0.465.00.66 J<0.50--------4,900Chloroform<0.36 <0.43 <0.72 <0.41 <0.45 <0.43<0.36<0.41 <0.40 <0.47<0.45--------41Chloromethane<0.281.0<0.572.21.52.7<0.281.41.81.3<0.36--------630Ethylbenzene14<0.67 <1.14.1<0.701.5 J18<0.641.2 J<0.73<0.70--------370Isopropylbenzene (Cumene)0.81 J<0.83 <1.41.0 J<0.87 <0.83<0.790.97 J<0.78 <0.91<0.87--------2,800p-Isopropyltoluene (p-Cymene)<0.75 <1.12.3 J7.2<1.22.5<0.754.41.7 J<1.2<1.2--------NSNaphthalene1.310.310.16.06.74.1 J<0.807.33.7 J 3.8 J3.5 J--------21n-Propylbenzene2.9<0.88 <1.54.2 J 1.8 J 1.3 J1.9 J3.1 J 1.3 J<0.96<0.92--------7,000Toluene21018.029.2 3,2601335133001,00047826.510.7--------35,000Trichloroethylene<0.43 <0.55 <0.93 <0.53 <0.58 <0.55<0.43<0.53 <0.52 <0.61<0.58--------141,2,3-Trimethylbenzene13*15.912.873.33.728.112*60.09.9<0.97<0.92--------4201,2,4-Trimethylbenzene395.45.164.83.921.33046.68.1<1.1<1.0--------420m&p-Xylene66<1.5<2.66.01.6 J 3.4 J862.5 J 1.8 J<1.7<1.6--------700o-Xylene360.77 J<1.32.70.85 J 1.3 J441.1 J<0.71 <0.83<0.79--------700Risk-Assessment - Soil Gas to Indoor AirCarcinogenic Risk (Resident)1.40E-062.3E-06 2.5E-06 1.6E-067.8E-072.7E-06 1.4E-06 1.4E-061.3E-06--------Hazard Index (Resident)7.50E-021.5E-01 7.0E-02 6.9E-026.8E-021.3E-01 4.9E-02 3.7E-023.4E-02--------Occupancy Granted by DEQNotes:1)North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs) (February 2018)Bold concentration indicates an exceedance in the applied standard.µg/m3 = micrograms per cubic meter; NS = Not Specified; -- = sample has not been collected; ppbv = parts per billion by volumeJ = detected concentration is above the laboratory method detection limit, but below the laboratory calibrated reporting limit. Therefore, the reported concentration is an estimated value.*Compound detected as a tentatively identified compound (TIC) and reported as ppbv in laboratory analytical report. Concentration converted to ug/m3 using EPA online conversion calculator.** Due to a discrepancy with the helium leak check results recorded during sampling, the data for samples, SS-1C MP-2 and SS-1E MP-3 may be suspect, and are shown for comparative purposes only.Suspect data is identified in italics.SS-1A_MP-2/Dup-110/28/20191AYesYesYesYes07/01/19102-13404/17/19YesYesYesYes04/17/19YesYesYesYesBuilding 1Building 21E1B2A1C2B1DYesYesYesYesYesYesYesYesResidential SGSLYesYesYesYesYes25-15404/17/1907/01/19YesYesYes04/17/19Pending --3.9E-061.1E-0187-137123-12568-113135-14842-11107/01/19S:\AAA-Master Projects\Stonehenge Real Estate Group - SHR\SHR-001 Former Abernethy Lumber\VIMS Construction\20200128 - Former Abernethy Lumber - VIMP Summary TableTable 1 Hart & Hickman, PC
Table 2
VIMS Vacuum Monitoring
Craighead Road (Abernethy Lumber) Brownfields
Site (Brownfields Project No. 18015-14-060)
H&H Project: SHR.001
Q1 Q2 Q3 Q4
1/13/2020 ------
MP-151.3------
MP-254.8------
MP-367.3------
MP-464.8------
MP-176.5------
MP-258.8------
MP-364.0------
MP-473.7------
MP-199.1------
MP-2 100.1 ------
MP-190.7------
MP-296.4------
MP-391.7------
MP-486.9------
MP-589.2------
MP-165.8------
MP-264.5------
MP-367.3 ------
MP-1 NC ------
MP-2 NC ------
MP-3 NC ------
MP-4 NC ------
MP-5 NC ------
MP-1 NC ------
MP-2 NC ------
MP-3 NC ------
Notes
Vacuum measurements are reported in Pascals (Pa)
-- = not measured; VIMS = vapor intrusion mitigation system; NC = VIMS not complete during monitoring event
Gray shading indicates VIMS incomplete during quarterly vacuum monitoring event
Building Slab ID
1A
1B
Vacuum Monitoring Point Measurements (Pa)
Monitoring Point
ID
1C
1D
1E
2A
2B
S:\AAA-Master Projects\Stonehenge Real Estate Group - SHR\SHR-001 Former Abernethy Lumber\VIMS Construction\Quarterly VIMS monitoring_01282020
Table 2
Hart & Hickman, PC
REVISION NO. 02923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyJOB NO. SHR-001DATE: 11-09-19FIGURE NO. 1CRAIGHEAD ROAD(ABERNETHY LUMBER) BROWNFIELDS SITEE. CRAIGHEAD ROAD & PHILEMON AVENUECHARLOTTE, NORTH CAROLINASITE MAPLEGENDSITE PROPERTY BOUNDARYCRAIGHEAD ROAD (ABERNETHY LUMBER)BROWNFIELDS PROPERTY BOUNDARYSURFACE WATER FEATUREE. CRAIGHEAD ROADPHILEMON AVENUENORFOLK SOUTHERN RAILROADN. DAVIDSON STREETPLC, INC.(3737 PHILEMON AVENUE)VACANT LAND(FORMER AGGREGATESTORAGE YARD)TRUCKING FACILITY(132 E. CRAIGHEAD ROAD)LITTLE SUGAR CREEK
SOUTHERN RESOURCES(3826 RALEIGH STREET)CATS TRANSITRIGHT-OF-WAYTRIBUTARY OF LITTLE SUGAR CREEKADV FLEET SERVICES(3600 PHILEMON AVENUE)HAL ABERNETHYCONTRACTING(3934 RALEIGH STREET)PARKING AREA BUILDING FOOTPRINTBUILDING 1BUILDING 2S:\AAA-Master Projects\Stonehenge Real Estate Group - SHR\SHR-001 Former Abernethy Lumber\VIMS Construction\Occupancy Requests\Figures\Site Map.dwg, 11/10/2019 5:09:05 PM, DWG To PDF.pc3
Appendix A
Building 1 VIMS As-Built Drawings (VMP-1, VMP-2, and VMP-3)
4" x 4" SCH 40 PVC 90DEGREE ELBOW (TYPICAL)SOLID TO SLOTTED 4" SCH 40 PVCPIPE TRANSITION (TYPICAL)4" x 4" x 4" SCH 40 PVC TEE(TYPICAL)4" PVC VENT PIPE PROTECTION SCREEN(TYPICAL AT ENDS OF SLOTTED PIPE)4" PVC VENT PIPE PROTECTION SCREEN(TYPICAL AT ENDS OF SLOTTED PIPE)POSITION VERTICAL RISER F1-3 WITHINTOILET WALL OF MENS BATHROOM ONGROUND FLOOR. POSITION VERTICALRISER TO EXTEND THROUGH BATHROOMOR TENANT SEPARATION WALL FORUPPER FLOORS.POSITION VERTICAL RISER F1-1WITHIN BATHROOM WALL. POSITIONVERTICAL RISER TO EXTENDTHROUGH BATHROOM OR TENANTSEPARATION WALL FOR UPPERFLOORS.4" TO 4" SCH 40 PVCREDUCER (TYPICAL)F1-21F1-20F1-19F1-18F1-17F1-16F1-15F1-13F1-12F1-14F1-11F1-10F1-9F1-8F1-7F1-5F1-6F1-4F1-2F1-1F1-32" PVC VENT PIPE PROTECTIONSCREEN (TYPICAL AT ENDS OFSOLID PIPE CONNECTORS)4" x 4" x 4" SCH 40 CROSSTEE (TYPICAL)2" PVC VENT PIPE PROTECTIONSCREEN (TYPICAL AT ENDS OFSOLID PIPE CONNECTORS)4"4"4"4"4"4"4"4"4"4"4"4"4"4"4"4"4"4"4"4"4"LOCATE VERTICAL RISERF1-17 WITHIN TOILET ORSHOWER WALLLOCATE VERTICAL RISERF1-12 IN KITCHEN BUILD-OUTBEHIND PANTRYPOSITION PRESSURE MEASURINGPOINT WITHIN HALLWAYPOSITION PRESSURE MEASURINGPOINT WITHIN HALL (OPEN) AREAOF STAIRWELLPOSITION PRESSURE MEASURINGPOINT WITHIN HALL (OPEN) AREAOF STAIRWELLBUILDING 1EBUILDING 1DBUILDING 1CBUILDING 1BBUILDING 1AMP-2MP-1MP-4MP-3MP-3MP-2MP-1MP-4MP-1MP-2MP-5MP-4MP-3MP-2MP-1MP-1MP-2MP-3PROPOSED FOOTER REMOVEDFROM DESIGN PRIOR TOCONSTRUCTIONPROPOSED FOOTER REMOVEDFROM DESIGN PRIOR TOCONSTRUCTIONPROPOSED FOOTER REMOVEDFROM DESIGN PRIOR TOCONSTRUCTIONOPEN AIR PATIO(TYPICAL)OPEN AIR PATIO(TYPICAL)AS-BUILT DRAWINGBUILDING 1REVISION 2MARCH 6, 20203736 Winterfield Road, Suite 102Midlothian, Virginia 23113Telephone [phone]www.2pa.netNC FIRM #51972© 2016 Poole & Poole Architecture, LLCDrawings and specifications are and shall remain theproperty of Poole & Poole Architecture, LLC and shall notbe used or reproduced in whole or part in any formwithout prior written consent of Poole & PooleArchitecture, LLC.Drawing Title:VMP-12923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyVapor Mitigation Plan Prepared By:PROFESSIONAL APPROVALNODA VILLAGE
an Apartment Community by
PHILEMON NODA PARTMERS, LLC
at 327 EAST CRAIGHEAD, Charlotte, North Carolina 28206LEGENDLOCATION OF VERTICAL RISER AND APPROXIMATE LOCATION OF VACUUM FAN ONBUILDING ROOF AND FAN NUMBER4" DIA SOLID SCH 40 PVC PIPE4" DIA SLOTTED SCH 4O PVC PIPESUB-SLAB PRESSURE MEASURING POINT (SOLID BLUE LINE INDICATES EXTENDED INTAKE LINE;REFER TO DETAILS 8 AND 9 ON SHEET VMP-2)GROUND FLOOR SLAB STEP (HEIGHT VARIES)THICKENED SLABTHICKENED SLAB SEPARATING BUILDING 1 SECTIONS (SEE DETAIL 13 ON SHEET VMP-2)EXTENT OF VAPOR BLOCK VB-15 VAPOR BARRIERGRAY SHADED AREAS REPRESENT OPEN AIR PATIOSNOTES:1. GROUND FLOOD SLAB DESIGN INCLUDES POST-TENSION CABLES.2.FOUNDATION PLAN AND DETAILS PROVIDED BY POOLE & POOLE ARCHITECTURE OFMIDLOTHIAN, VA AND DAVIS & CHURCH STRUCTURAL ENGINEERS OF APLHARETTA,GA AND ARE SUBJECT TO COPYRIGHT PROTECTION.F1-103/06/20\\hhfs01\MasterFiles\AAA-Master Projects\Stonehenge Real Estate Group - SHR\SHR-001 Former Abernethy Lumber\VIMS Construction\Occupancy Requests\Figures\Building 1 - AS-Built_VMP-1_Rev 2.dwg, 3/6/2020 5:07:24 PM, DWG To PDF.pc3

Appendix B
Photographic Log
Photograph 2: General view of sub-slab piping in slab step of Building 1C.SHR-0012923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 1: General view of sub-slab piping during installation at Building 1D/1E.
CRAIGHEAD ROAD (ABERNETHY LUMBER)NODA VILLAGECHARLOTTE, NORTH CAROLINA
Photograph 4:General view of vapor barrier installation at Building 1D/1E. SHR-0012923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 3: General view of sub-slab piping at Building 1A/1B prior to adding clean gravel.
CRAIGHEAD ROAD (ABERNETHY LUMBER)NODA VILLAGECHARLOTTE, NORTH CAROLINA
Photograph 6: General view of vapor barrier installation at Building 1B. SHR-0012923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 5: General view of vapor barrier installation at Building 1C.
CRAIGHEAD ROAD (ABERNETHY LUMBER)NODA VILLAGECHARLOTTE, NORTH CAROLINA
Photograph 8: General set-up of influence testing at Building 1.SHR-0012923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 7: General view of vapor barrier installation at Building 1A.
CRAIGHEAD ROAD (ABERNETHY LUMBER)NODA VILLAGECHARLOTTE, NORTH CAROLINA
Photograph 10: Representative view of RadonAway RP-145 active fans on Building 1. Discharge
pipes positioned at least l0 feet from building air intakes.
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 9: Representative view of riser piping.SHR-001CRAIGHEAD ROAD (ABERNETHY LUMBER)NODA VILLAGECHARLOTTE, NORTH CAROLINA
Riser Piping Label
Drain, waste, vent pipes
2923 S. Tryon Street, Suite 100
Charlotte, NC 28203704.586.0007(p) 704.586.0373(f)
Photograph 11: Representative view of label on fan discharge with fan identification number.SHR-001CRAIGHEAD ROAD (ABERNETHY LUMBER)NODA VILLAGECHARLOTTE, NORTH CAROLINA
Photograph 12: Representative view of exterior portion of Building 1 showing open air patios.

Appendix C VIMS Inspection Forms and Field Logs

NODA Village
Vapor Mitigation System 
Monthly Fan O&M Form
Date___________________Inspector_____________________________
Comments 
Yes No Note any damage, malfunctions, repairs needed, etc.
F1‐1
F1‐2
F1‐3
F1‐4
F1‐5
F1‐6
F1‐7
F1‐8
F1‐9
F1‐10
F1‐11
F1‐12
F1‐13
F1‐14
F1‐15
F1‐16
F1‐17
F1‐18
F1‐19
F1‐20
F1‐21
F2‐1
F2‐2
F2‐3
F2‐4
F2‐5
F2‐6
F2‐7
F2‐8
F2‐9
F2‐10
F2‐11
F2‐12
2.  If fan is not operating or damage is observed, contact Hart & Hickman at 704‐586‐0007.
Fan Operating?
Building 1 Section A
Building 2 Section A
1.  Vapor mitigation fans shall be inspected on a monthly basis and these forms shall be  submitted to the DEQ Brownfields Program on 
a yearly basis.
Fan Number
Building 2 Section B
Building 1 Section B
Building 1 Section D
Building 1 Section C
Building 1 Section E
Initials________________________
Sub-Slab VIMS Pilot Test
Site Address:__________________________________________________________________________
Date: ___________ Test Start Time:___________ Weather:_______________________________
Sub-Slab Test # _______ Location:_______________________________________________________
Time
Fan # Suction Point Vacuum (“WC)
Fan#Suction Point Vacuum (“WC)
Fan # Suction Point Vacuum (“WC)
Fan # Suction Point Vacuum (“WC)
Observation
Point
Baseline
Pressure
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
DW #
DW #
DW #
DW #
DW #
Comments____________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
1
2
3
4
F1-1
F1-2
F1-3
ACB/JML
327 East Craighead Rd.
7/1/2019 14:50 Clear/Sunny, 80s
Building 1A
0.005 -0.058 -0.061 -0.415 -0.413
0.000 -0.075 -0.079 -0.508 -0.509
0.005 -0.130 -0.132 -0.537 -0.530
0.000 -0.127 -0.127 -0.411 -0.415
Fans 1 & 3 off and capped until 15:11
15:00 15:10 15:20 15:30
-------1.624 -1.512
-1.131 -1.097
------
--- ---
-1.431 -1.436
-1.390 -1.386
------
Initials________________________
Sub-Slab VIMS Pilot Test
Site Address:__________________________________________________________________________
Date: ___________ Test Start Time:___________ Weather:_______________________________
Sub-Slab Test # _______ Location:_______________________________________________________
Time
Fan #1 Suction Point Vacuum (“WC)
Fan #2 Suction Point Vacuum (“WC)
Fan #3 Suction Point Vacuum (“WC)
Fan #4 Suction Point Vacuum (“WC)
Observation
Point
Baseline
Pressure
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
DP #1
DP #2
DP #3
DP #4
DP #5
Comments____________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
F1-4 (Legend)
F1-5 (Shop Vac)
F1-6 (Legend)
F1-7 (Radon)
JML & ACB
327 East Craighead Rd.
4/17/2019 09:45 Partly Cloudy, 70s
1 Building 1B
0.000 -0.539 -0.550
0.000 -0.419 -0.433
0.000 -0.399 -0.410
0.000 -0.348 -0.357
10:00 10:15
-2.161 -2.187
-1.116 -1.118
-2.147 -2.093
-1.113 -1.187
Initials________________________
Sub-Slab VIMS Pilot Test
Site Address:__________________________________________________________________________
Date: ___________ Test Start Time:___________ Weather:_______________________________
Sub-Slab Test # _______ Location:_______________________________________________________
Time
Fan # Suction Point Vacuum (“WC)
Fan#Suction Point Vacuum (“WC)
Fan # Suction Point Vacuum (“WC)
Fan # Suction Point Vacuum (“WC)
Observation
Point
Baseline
Pressure
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
DW #
DW #
DW #
DW #
DW #
Comments____________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
1
2
F1-8
F1-9
F1-10
F1-11
(Radon)
(Shop Vac)
(Legend)
(Legend)
ACB/JML
327 East Craighead Rd.
7/1/2019 09:45 Clear/Sunny, 80s
Building 1C
0.000 -0.240 -0.239 -0.493 -0.486
0.000 -0.259 -0.257 -0.499 -0.501
09:55 10:05 10:20 10:30
-------0.895 -0.903
-1.463 -1.462
-1.965 -1.957
--- ---
-1.636 -1.631
-1.835 -1.820
-1.744 -1.740
Initials________________________
Sub-Slab VIMS Pilot Test
Site Address:__________________________________________________________________________
Date: ___________ Test Start Time:___________ Weather:_______________________________
Sub-Slab Test # _______ Location:_______________________________________________________
Time
Fan #1 Suction Point Vacuum (“WC)
Fan #2 Suction Point Vacuum (“WC)
Fan #3 Suction Point Vacuum (“WC)
Fan #4 Suction Point Vacuum (“WC)
Observation
Point
Baseline
Pressure
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
DW #1
DW #2
DW #3
DW #4
DW #5
Comments____________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
F1-12 (Shop Vac)
F1-13 (Radon)
F1-14 (Legend)
F1-17 (Legend)
JML & BRK
327 East Craighead Rd.
4/17/19 15:25 Clear/Sunny, 70s
1 Building 1D
0.000 -0.378 -0.388 -0.374
0.000 --- --- -0.334
0.000 -0.441 -0.452 ---
0.000 -0.376 -0.370 ---
0.000 --- --- -0.274
15:40 15:55 16:10
-1.440 -1.433 -1.410
-1.090 -1.082
-1.787 -1.760
-2.319 -2.320
-1.111
-1.801
-2.322
Initials________________________
Sub-Slab VIMS Pilot Test
Site Address:__________________________________________________________________________
Date: ___________ Test Start Time:___________ Weather:_______________________________
Sub-Slab Test # _______ Location:_______________________________________________________
Time
Fan #1 Suction Point Vacuum (“WC)
Fan #2 Suction Point Vacuum (“WC)
Fan #3 Suction Point Vacuum (“WC)
Fan #4 Suction Point Vacuum (“WC)
Observation
Point
Baseline
Pressure
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
Pressure
“WC
DP #1
DP #2
DP #3
DP #
DP #
Comments____________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
F1-18 (Legend)
F1-19 (Radon)
F1-20 (Shop Vac)
F1-21 (Legend)
JML & ACB
327 East Craighead Rd.
4/17/19 11:40 Partly Cloudy, 70s
1 Building 1E
0.000 -0.540 -0.541
0.000 -0.559 -0.560
0.000 -0.596 -0.596
Baseline @ 11:30, started fans @ 11:40
11:55 12:10
-1.945 -1.922
-1.153 -1.150
-1.495 -1.531
-2.361 -2.417
Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.:____________________Depth of ScreenDate & TimeAmbient Temp.Purge Method Purge VolHelium Conc.ShroudHelium Conc.PurgeLeak Test PassedYes / No SS, SGperm., temp.concrete, wood, asphalt, grass, soil, gravel etc.thicknessinches(if appl.)ft bgsmm/dd/yy 24-hour clockoFsyringe, peristaltic, etc.Liters %% or ppm(indicate units below)Yes / No(see note)S:C:R:S:C:R:S:C:R:S:C:R:S= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporarySampler(s): ___________________________________________________________Weather: ___________________________________________________________Notes: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Helium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionGeneral Field Sketch of Sample Locations Note: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. S:\BBB Master Templates\Forms - Soil Gas\Sub-slab & Soil Gas QA_QC Field FormSub-Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PC4FF
7.1SHR-00110/28/1960.060.060.060.0Sunny, Clear, Windy, 60sSS-IE MP-331111.0Air1302SS-IE MP-130251468SS-IC MP-222501297SS-ID MP-230121293SSSSSSSSPerm.Perm.Perm.Perm.ConcretConcretConcretConcret1.01.01.012:3410/28/1913:0410/28/1913:5010/28/1914:21AirAirAir3.03.03.03.020.833.716.823.3130,000.01,500.021,000.010,650.0ppmNatasha Pacifico%ppm%ppm%ppm%YesNoYesNoYesNoYesNoYesNoYesNoYesNoYesNo
Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.:____________________Depth of ScreenDate & TimeAmbient Temp.Purge Method Purge VolHelium Conc.ShroudHelium Conc.PurgeLeak Test PassedYes / No SS, SGperm., temp.concrete, wood, asphalt, grass, soil, gravel etc.thicknessinches(if appl.)ft bgsmm/dd/yy 24-hour clockoFsyringe, peristaltic, etc.Liters %% or ppm(indicate units below)Yes / No(see note)S:C:R:S:C:R:S:C:R:S:C:R:S= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporarySampler(s): ___________________________________________________________Weather: ___________________________________________________________Notes: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Helium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionGeneral Field Sketch of Sample Locations Note: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. S:\BBB Master Templates\Forms - Soil Gas\Sub-slab & Soil Gas QA_QC Field FormSub-Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PC4FF
4IFFU
7.1SHR-00110/28/1960.060.060.060.0Sunny, Clear, Windy, 60sSS-ID MP-532211.0Air1491SS-IC MP-120130655SS-IB MP-330401294SS-IB MP-229201482SSSSSSSSPerm.Perm.Perm.Perm.ConcretConcretConcretConcret1.01.01.014:5010/28/1915:1910/28/1915:5810/28/1916:24AirAirAir3.03.03.03.017.027.823.727.84,075.01,500.01,375.010,500.0ppmNatasha Pacifico%ppm%ppm%ppm%YesNoYesNoYesNoYesNoYesNoYesNoYesNoYesNo
Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.:____________________Depth of ScreenDate & TimeAmbient Temp.Purge Method Purge VolHelium Conc.ShroudHelium Conc.PurgeLeak Test PassedYes / No SS, SGperm., temp.concrete, wood, asphalt, grass, soil, gravel etc.thicknessinches(if appl.)ft bgsmm/dd/yy 24-hour clockoFsyringe, peristaltic, etc.Liters %% or ppm(indicate units below)Yes / No(see note)S:C:R:S:C:R:S:C:R:S:C:R:S= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporarySampler(s): ___________________________________________________________Weather: ___________________________________________________________Notes: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Helium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionGeneral Field Sketch of Sample Locations Note: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. S:\BBB Master Templates\Forms - Soil Gas\Sub-slab & Soil Gas QA_QC Field FormSub-Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PC4FF
4IFFU
7.1SHR-00110/28/1960.060.060.0Sunny, 60sSample SS-1A MP-3 was not submitted for analysis.SS-IA MP-332761.0Air1345SS-IA MP-221962117DUP-109132117SSSSSSPerm.Perm.Perm.ConcretConcretConcret1.01.017:0010/28/1917:3910/28/1917:39AirAir3.03.03.019.215.715.73.0975.0975.0ppmNatasha Pacifico%ppm%ppm%ppm%YesNoYesNoYesNoYesNoYesNoYesNoYesNoYesNo
Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.:____________________Depth of ScreenDate & TimeAmbient Temp.Purge Method Purge VolHelium Conc.ShroudHelium Conc.PurgeLeak Test PassedYes / No SS, SGperm., temp.concrete, wood, asphalt, grass, soil, gravel etc.thicknessinches(if appl.)ft bgsmm/dd/yy 24-hour clockoFsyringe, peristaltic, etc.Liters %% or ppm(indicate units below)Yes / No(see note)S:C:R:S:C:R:S:C:R:S:C:R:S= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporarySampler(s): ___________________________________________________________Weather: ___________________________________________________________Notes: ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Helium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionGeneral Field Sketch of Sample Locations Note: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. S:\BBB Master Templates\Forms - Soil Gas\Sub-slab & Soil Gas QA_QC Field FormSub-Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PC4FF
4IFFU
7.1SHR-00111/1/1940.040.0Clear and Sunny, 40sSampled SS-1A MP-3 was a recollection fromprevious sample on 10/28/19 due to helium leaktest failure.SS-IC MP-211131.0Air4138SS-IA MP-314734139SSSSPerm.Perm.ConcretConcret1.010:5111/1/1912:03Air3.03.048.549.8750.0875.0ppmNatasha Pacifico%ppm%ppm%ppm%YesNoYesNoYesNoYesNoYesNoYesNoYesNoYesNo

Appendix D Analytical Laboratory Reports
#=CL#
November 06, 2019
LIMS USE: FR - ANDREW BESU
LIMS OBJECT ID: 92451420
92451420
Project:
Pace Project No.:
RE:
Andrew Besu
Hart & Hickman
2923 S Tryon Street
Suite 100
Charlotte, NC 28203
Abernethy Lumber SHR-001
Dear Andrew Besu:
Enclosed are the analytical results for sample(s) received by the laboratory on October 29, 2019.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Kevin Godwin
[e-mail]
Project Manager
1(704)875-9092
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 1 of 21
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Minnesota Certification IDs
1700 Elm Street SE, Minneapolis, MN 55414-2485
A2LA Certification #: 2926.01
Alabama Certification #: 40770
Alaska Contaminated Sites Certification #: 17-009
Alaska DW Certification #: MN00064
Arizona Certification #: AZ0014
Arkansas DW Certification #: MN00064
Arkansas WW Certification #: 88-0680
California Certification #: 2929
CNMI Saipan Certification #: MP0003
Colorado Certification #: MN00064
Connecticut Certification #: PH-0256
EPA Region 8+Wyoming DW Certification #: via MN 027-
053-137
Florida Certification #: E87605
Georgia Certification #: 959
Guam EPA Certification #: MN00064
Hawaii Certification #: MN00064
Idaho Certification #: MN00064
Illinois Certification #: 200011
Indiana Certification #: C-MN-01
Iowa Certification #: 368
Kansas Certification #: E-10167
Kentucky DW Certification #: 90062
Kentucky WW Certification #: 90062
Louisiana DEQ Certification #: 03086
Louisiana DW Certification #: MN00064
Maine Certification #: MN00064
Maryland Certification #: 322
Massachusetts Certification #: M-MN064
Michigan Certification #: 9909
Minnesota Certification #: 027-053-137
Minnesota Dept of Ag Certifcation #: via MN 027-053-137
Minnesota Petrofund Certification #: 1240
Mississippi Certification #: MN00064
Missouri Certification #: 10100
Montana Certification #: CERT0092
Nebraska Certification #: NE-OS-18-06
Nevada Certification #: MN00064
New Hampshire Certification #: 2081
New Jersey Certification #: MN002
New York Certification #: 11647
North Carolina DW Certification #: 27700
North Carolina WW Certification #: 530
North Dakota Certification #: R-036
Ohio DW Certification #: 41244
Ohio VAP Certification #: CL101
Oklahoma Certification #: 9507
Oregon Primary Certification #: MN300001
Oregon Secondary Certification #: MN200001
Pennsylvania Certification #: 68-00563
Puerto Rico Certification #: MN00064
South Carolina Certification #:74003001
Tennessee Certification #: TN02818
Texas Certification #: T104704192
Utah Certification #: MN00064
Vermont Certification #: VT-027053137
Virginia Certification #: 460163
Washington Certification #: C486
West Virginia DEP Certification #: 382
West Virginia DW Certification #: 9952 C
Wisconsin Certification #: 999407970
Wyoming UST Certification #: via A2LA 2926.01
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 21
#=SS#
SAMPLE SUMMARY
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Lab ID Sample ID Matrix Date Collected Date Received
92451420001 SS-IE MP-3 CAN#3111 Air 10/28/19 12:44 10/29/19 14:09
92451420002 SS-IE MP-1 CAN#3025 Air 10/28/19 13:14 10/29/19 14:09
92451420003 SS-ID MP-2 CAN#3012 Air 10/28/19 14:31 10/29/19 14:09
92451420004 SS-ID MP-5 CAN#3221 Air 10/28/19 15:00 10/29/19 14:09
92451420005 SS-IC MP-1 CAN#2013 Air 10/28/19 15:29 10/29/19 14:09
92451420006 SS-IB MP-3 CAN#3040 Air 10/28/19 16:08 10/29/19 14:09
92451420007 SS-IB MP-2 CAN#2920 Air 10/28/19 16:34 10/29/19 14:09
92451420008 SS-IA MP-2 CAN#2196 Air 10/28/19 17:49 10/29/19 14:09
92451420009 Dup-1 CAN#0913 Air 10/28/19 00:00 10/29/19 14:09
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 3 of 21
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92451420001 SS-IE MP-3 CAN#3111 TO-15 17 PASI-MAC1
92451420002 SS-IE MP-1 CAN#3025 TO-15 17 PASI-MAC1
92451420003 SS-ID MP-2 CAN#3012 TO-15 17 PASI-MAC1, AFV
92451420004 SS-ID MP-5 CAN#3221 TO-15 17 PASI-MAC1, AFV
92451420005 SS-IC MP-1 CAN#2013 TO-15 17 PASI-MAC1, AFV
92451420006 SS-IB MP-3 CAN#3040 TO-15 17 PASI-MAC1
92451420007 SS-IB MP-2 CAN#2920 TO-15 17 PASI-MAC1, AFV
92451420008 SS-IA MP-2 CAN#2196 TO-15 17 PASI-MAC1
92451420009 Dup-1 CAN#0913 TO-15 17 PASI-MAC1, AFV
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-IE MP-3 CAN#3111 Lab ID: 92451420001 Collected: 10/28/19 12:44 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 19.7 ug/m3 11/03/19 18:46 67-64-15.5 2.8 2.29
Benzene ND ug/m3 11/03/19 18:46 71-43-20.74 0.35 2.29
n-Butylbenzene ND ug/m3 11/03/19 18:46 104-51-86.4 2.6 2.29
Carbon disulfide ND ug/m3 11/03/19 18:46 75-15-01.4 0.50 2.29
Chloroform ND ug/m3 11/03/19 18:46 67-66-31.1 0.45 2.29
Chloromethane ND ug/m3 11/03/19 18:46 74-87-30.96 0.36 2.29
Ethylbenzene ND ug/m3 11/03/19 18:46 100-41-42.0 0.70 2.29
Isopropylbenzene (Cumene)ND ug/m3 11/03/19 18:46 98-82-85.7 0.87 2.29
p-Isopropyltoluene ND ug/m3 11/03/19 18:46 99-87-62.6 1.2 2.29
Naphthalene 3.5J ug/m3 11/03/19 18:46 91-20-36.1 3.0 2.29
n-Propylbenzene ND ug/m3 11/03/19 18:46 103-65-15.7 0.92 2.29
Toluene 10.7 ug/m3 11/03/19 18:46 108-88-31.8 0.80 2.29
Trichloroethene ND ug/m3 11/03/19 18:46 79-01-61.3 0.58 2.29
1,2,3-Trimethylbenzene ND ug/m3 11/03/19 18:46 526-73-82.3 0.92 2.29
1,2,4-Trimethylbenzene ND ug/m3 11/03/19 18:46 95-63-62.3 1.0 2.29
m&p-Xylene ND ug/m3 11/03/19 18:46 179601-23-14.1 1.6 2.29
o-Xylene ND ug/m3 11/03/19 18:46 95-47-62.0 0.79 2.29
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/06/2019 06:22 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-IE MP-1 CAN#3025 Lab ID: 92451420002 Collected: 10/28/19 13:14 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 18.9 ug/m3 11/03/19 19:14 67-64-15.8 2.9 2.4
Benzene ND ug/m3 11/03/19 19:14 71-43-20.78 0.37 2.4
n-Butylbenzene ND ug/m3 11/03/19 19:14 104-51-86.7 2.7 2.4
Carbon disulfide 0.66J ug/m3 11/03/19 19:14 75-15-01.5 0.53 2.4
Chloroform ND ug/m3 11/03/19 19:14 67-66-31.2 0.47 2.4
Chloromethane 1.3 ug/m3 11/03/19 19:14 74-87-31.0 0.37 2.4
Ethylbenzene ND ug/m3 11/03/19 19:14 100-41-42.1 0.73 2.4
Isopropylbenzene (Cumene)ND ug/m3 11/03/19 19:14 98-82-86.0 0.91 2.4
p-Isopropyltoluene ND ug/m3 11/03/19 19:14 99-87-62.7 1.2 2.4
Naphthalene 3.8J ug/m3 11/03/19 19:14 91-20-36.4 3.1 2.4
n-Propylbenzene ND ug/m3 11/03/19 19:14 103-65-16.0 0.96 2.4
Toluene 26.5 ug/m3 11/03/19 19:14 108-88-31.8 0.84 2.4
Trichloroethene ND ug/m3 11/03/19 19:14 79-01-61.3 0.61 2.4
1,2,3-Trimethylbenzene ND ug/m3 11/03/19 19:14 526-73-82.4 0.97 2.4
1,2,4-Trimethylbenzene ND ug/m3 11/03/19 19:14 95-63-62.4 1.1 2.4
m&p-Xylene ND ug/m3 11/03/19 19:14 179601-23-14.2 1.7 2.4
o-Xylene ND ug/m3 11/03/19 19:14 95-47-62.1 0.83 2.4
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/06/2019 06:22 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-ID MP-2 CAN#3012 Lab ID: 92451420003 Collected: 10/28/19 14:31 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 24.6 ug/m3 11/03/19 22:07 67-64-15.1 2.5 2.1
Benzene ND ug/m3 11/03/19 22:07 71-43-20.68 0.32 2.1
n-Butylbenzene 66.3 ug/m3 11/03/19 22:07 104-51-85.9 2.4 2.1
Carbon disulfide ND ug/m3 11/03/19 22:07 75-15-01.3 0.46 2.1
Chloroform ND ug/m3 11/03/19 22:07 67-66-31.0 0.41 2.1
Chloromethane 1.4 ug/m3 11/03/19 22:07 74-87-30.88 0.33 2.1
Ethylbenzene ND ug/m3 11/03/19 22:07 100-41-41.9 0.64 2.1
Isopropylbenzene (Cumene)0.97J ug/m3 11/03/19 22:07 98-82-85.2 0.80 2.1
p-Isopropyltoluene 4.4 ug/m3 11/03/19 22:07 99-87-62.4 1.1 2.1
Naphthalene 7.3 ug/m3 11/03/19 22:07 91-20-35.6 2.8 2.1
n-Propylbenzene 3.1J ug/m3 11/03/19 22:07 103-65-15.2 0.84 2.1
Toluene 1000 ug/m3 11/04/19 17:53 108-88-348.3 22.1 63
Trichloroethene ND ug/m3 11/03/19 22:07 79-01-61.1 0.53 2.1
1,2,3-Trimethylbenzene 60.0 ug/m3 11/03/19 22:07 526-73-82.1 0.85 2.1
1,2,4-Trimethylbenzene 46.6 ug/m3 11/03/19 22:07 95-63-62.1 0.95 2.1
m&p-Xylene 2.5J ug/m3 11/03/19 22:07 179601-23-13.7 1.5 2.1
o-Xylene 1.1J ug/m3 11/03/19 22:07 95-47-61.9 0.72 2.1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/06/2019 06:22 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-ID MP-5 CAN#3221 Lab ID: 92451420004 Collected: 10/28/19 15:00 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 21.8 ug/m3 11/03/19 20:39 67-64-15.0 2.5 2.06
Benzene 0.36J ug/m3 11/03/19 20:39 71-43-20.67 0.32 2.06
n-Butylbenzene ND ug/m3 11/03/19 20:39 104-51-85.7 2.3 2.06
Carbon disulfide 5.0 ug/m3 11/03/19 20:39 75-15-01.3 0.45 2.06
Chloroform ND ug/m3 11/03/19 20:39 67-66-31.0 0.40 2.06
Chloromethane 1.8 ug/m3 11/03/19 20:39 74-87-30.87 0.32 2.06
Ethylbenzene 1.2J ug/m3 11/03/19 20:39 100-41-41.8 0.63 2.06
Isopropylbenzene (Cumene)ND ug/m3 11/03/19 20:39 98-82-85.2 0.78 2.06
p-Isopropyltoluene 1.7J ug/m3 11/03/19 20:39 99-87-62.3 1.1 2.06
Naphthalene 3.7J ug/m3 11/03/19 20:39 91-20-35.5 2.7 2.06
n-Propylbenzene 1.3J ug/m3 11/03/19 20:39 103-65-15.2 0.83 2.06
Toluene 478 ug/m3 11/04/19 17:26 108-88-329.1 13.3 38
Trichloroethene ND ug/m3 11/03/19 20:39 79-01-61.1 0.52 2.06
1,2,3-Trimethylbenzene 9.9 ug/m3 11/03/19 20:39 526-73-82.1 0.83 2.06
1,2,4-Trimethylbenzene 8.1 ug/m3 11/03/19 20:39 95-63-62.1 0.93 2.06
m&p-Xylene 1.8J ug/m3 11/03/19 20:39 179601-23-13.6 1.4 2.06
o-Xylene ND ug/m3 11/03/19 20:39 95-47-61.8 0.71 2.06
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/06/2019 06:22 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-IC MP-1 CAN#2013 Lab ID: 92451420005 Collected: 10/28/19 15:29 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 31.6 ug/m3 11/03/19 20:11 67-64-15.3 2.6 2.19
Benzene 0.52J ug/m3 11/03/19 20:11 71-43-20.71 0.34 2.19
n-Butylbenzene 30.9 ug/m3 11/03/19 20:11 104-51-86.1 2.5 2.19
Carbon disulfide 1.3J ug/m3 11/03/19 20:11 75-15-01.4 0.48 2.19
Chloroform ND ug/m3 11/03/19 20:11 67-66-31.1 0.43 2.19
Chloromethane 2.7 ug/m3 11/03/19 20:11 74-87-30.92 0.34 2.19
Ethylbenzene 1.5J ug/m3 11/03/19 20:11 100-41-41.9 0.67 2.19
Isopropylbenzene (Cumene)ND ug/m3 11/03/19 20:11 98-82-85.5 0.83 2.19
p-Isopropyltoluene 2.5 ug/m3 11/03/19 20:11 99-87-62.5 1.1 2.19
Naphthalene 4.1J ug/m3 11/03/19 20:11 91-20-35.8 2.9 2.19
n-Propylbenzene 1.3J ug/m3 11/03/19 20:11 103-65-15.5 0.88 2.19
Toluene 513 ug/m3 11/04/19 16:58 108-88-333.6 15.4 43.8
Trichloroethene ND ug/m3 11/03/19 20:11 79-01-61.2 0.55 2.19
1,2,3-Trimethylbenzene 28.1 ug/m3 11/03/19 20:11 526-73-82.2 0.88 2.19
1,2,4-Trimethylbenzene 21.3 ug/m3 11/03/19 20:11 95-63-62.2 0.99 2.19
m&p-Xylene 3.4J ug/m3 11/03/19 20:11 179601-23-13.9 1.5 2.19
o-Xylene 1.3J ug/m3 11/03/19 20:11 95-47-61.9 0.75 2.19
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 11/06/2019 06:22 PM
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-IB MP-3 CAN#3040 Lab ID: 92451420006 Collected: 10/28/19 16:08 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 20.2 ug/m3 11/03/19 19:43 67-64-15.5 2.8 2.29
Benzene 0.37J ug/m3 11/03/19 19:43 71-43-20.74 0.35 2.29
n-Butylbenzene 6.2J ug/m3 11/03/19 19:43 104-51-86.4 2.6 2.29
Carbon disulfide 5.2 ug/m3 11/03/19 19:43 75-15-01.4 0.50 2.29
Chloroform ND ug/m3 11/03/19 19:43 67-66-31.1 0.45 2.29
Chloromethane 1.5 ug/m3 11/03/19 19:43 74-87-30.96 0.36 2.29
Ethylbenzene ND ug/m3 11/03/19 19:43 100-41-42.0 0.70 2.29
Isopropylbenzene (Cumene)ND ug/m3 11/03/19 19:43 98-82-85.7 0.87 2.29
p-Isopropyltoluene ND ug/m3 11/03/19 19:43 99-87-62.6 1.2 2.29
Naphthalene 6.7 ug/m3 11/03/19 19:43 91-20-36.1 3.0 2.29
n-Propylbenzene 1.8J ug/m3 11/03/19 19:43 103-65-15.7 0.92 2.29
Toluene 133 ug/m3 11/03/19 19:43 108-88-31.8 0.80 2.29
Trichloroethene ND ug/m3 11/03/19 19:43 79-01-61.3 0.58 2.29
1,2,3-Trimethylbenzene 3.7 ug/m3 11/03/19 19:43 526-73-82.3 0.92 2.29
1,2,4-Trimethylbenzene 3.9 ug/m3 11/03/19 19:43 95-63-62.3 1.0 2.29
m&p-Xylene 1.6J ug/m3 11/03/19 19:43 179601-23-14.1 1.6 2.29
o-Xylene 0.85J ug/m3 11/03/19 19:43 95-47-62.0 0.79 2.29
REPORT OF LABORATORY ANALYSIS
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Page 10 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-IB MP-2 CAN#2920 Lab ID: 92451420007 Collected: 10/28/19 16:34 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 36.9 ug/m3 11/03/19 22:35 67-64-15.1 2.5 2.1
Benzene 0.52J ug/m3 11/03/19 22:35 71-43-20.68 0.32 2.1
n-Butylbenzene ND ug/m3 11/03/19 22:35 104-51-85.9 2.4 2.1
Carbon disulfide 12.6 ug/m3 11/03/19 22:35 75-15-01.3 0.46 2.1
Chloroform ND ug/m3 11/03/19 22:35 67-66-31.0 0.41 2.1
Chloromethane 2.2 ug/m3 11/03/19 22:35 74-87-30.88 0.33 2.1
Ethylbenzene 4.1 ug/m3 11/03/19 22:35 100-41-41.9 0.64 2.1
Isopropylbenzene (Cumene)1.0J ug/m3 11/03/19 22:35 98-82-85.2 0.80 2.1
p-Isopropyltoluene 7.2 ug/m3 11/03/19 22:35 99-87-62.4 1.1 2.1
Naphthalene 6.0 ug/m3 11/03/19 22:35 91-20-35.6 2.8 2.1
n-Propylbenzene 4.2J ug/m3 11/03/19 22:35 103-65-15.2 0.84 2.1
Toluene 3260 ug/m3 11/04/19 18:20 108-88-348.3 22.1 63
Trichloroethene ND ug/m3 11/03/19 22:35 79-01-61.1 0.53 2.1
1,2,3-Trimethylbenzene 73.3 ug/m3 11/03/19 22:35 526-73-82.1 0.85 2.1
1,2,4-Trimethylbenzene 64.8 ug/m3 11/03/19 22:35 95-63-62.1 0.95 2.1
m&p-Xylene 6.0 ug/m3 11/03/19 22:35 179601-23-13.7 1.5 2.1
o-Xylene 2.7 ug/m3 11/03/19 22:35 95-47-61.9 0.72 2.1
REPORT OF LABORATORY ANALYSIS
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Page 11 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: SS-IA MP-2 CAN#2196 Lab ID: 92451420008 Collected: 10/28/19 17:49 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 12.9 ug/m3 11/03/19 21:08 67-64-15.3 2.6 2.19
Benzene ND ug/m3 11/03/19 21:08 71-43-20.71 0.34 2.19
n-Butylbenzene 8.2 ug/m3 11/03/19 21:08 104-51-86.1 2.5 2.19
Carbon disulfide ND ug/m3 11/03/19 21:08 75-15-01.4 0.48 2.19
Chloroform ND ug/m3 11/03/19 21:08 67-66-31.1 0.43 2.19
Chloromethane 1.0 ug/m3 11/03/19 21:08 74-87-30.92 0.34 2.19
Ethylbenzene ND ug/m3 11/03/19 21:08 100-41-41.9 0.67 2.19
Isopropylbenzene (Cumene)ND ug/m3 11/03/19 21:08 98-82-85.5 0.83 2.19
p-Isopropyltoluene ND ug/m3 11/03/19 21:08 99-87-62.5 1.1 2.19
Naphthalene 10.3 ug/m3 11/03/19 21:08 91-20-35.8 2.9 2.19
n-Propylbenzene ND ug/m3 11/03/19 21:08 103-65-15.5 0.88 2.19
Toluene 18.0 ug/m3 11/03/19 21:08 108-88-31.7 0.77 2.19
Trichloroethene ND ug/m3 11/03/19 21:08 79-01-61.2 0.55 2.19
1,2,3-Trimethylbenzene 15.9 ug/m3 11/03/19 21:08 526-73-82.2 0.88 2.19
1,2,4-Trimethylbenzene 5.4 ug/m3 11/03/19 21:08 95-63-62.2 0.99 2.19
m&p-Xylene ND ug/m3 11/03/19 21:08 179601-23-13.9 1.5 2.19
o-Xylene 0.77J ug/m3 11/03/19 21:08 95-47-61.9 0.75 2.19
REPORT OF LABORATORY ANALYSIS
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Page 12 of 21
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Sample: Dup-1 CAN#0913 Lab ID: 92451420009 Collected: 10/28/19 00:00 Received: 10/29/19 14:09 Matrix: Air
Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit
Report
Analytical Method: TO-15TO15 MSV AIR
Acetone 26.0 ug/m3 11/05/19 17:02 67-64-18.9 4.5 3.68
Benzene 2.3 ug/m3 11/03/19 21:38 71-43-20.71 0.34 2.19
n-Butylbenzene 8.2J ug/m3 11/05/19 17:02 104-51-810.3 4.1 3.68
Carbon disulfide 16.3 ug/m3 11/05/19 17:02 75-15-02.3 0.81 3.68
Chloroform ND ug/m3 11/05/19 17:02 67-66-31.8 0.72 3.68
Chloromethane ND ug/m3 11/05/19 17:02 74-87-31.5 0.57 3.68
Ethylbenzene ND ug/m3 11/05/19 17:02 100-41-43.2 1.1 3.68
Isopropylbenzene (Cumene)ND ug/m3 11/05/19 17:02 98-82-89.2 1.4 3.68
p-Isopropyltoluene 2.3J ug/m3 11/05/19 17:02 99-87-64.1 1.9 3.68
Naphthalene 10.1 ug/m3 11/05/19 17:02 91-20-39.8 4.8 3.68
n-Propylbenzene ND ug/m3 11/05/19 17:02 103-65-19.2 1.5 3.68
Toluene 29.2 ug/m3 11/05/19 17:02 108-88-32.8 1.3 3.68
Trichloroethene ND ug/m3 11/05/19 17:02 79-01-62.0 0.93 3.68
1,2,3-Trimethylbenzene 12.8 ug/m3 11/05/19 17:02 526-73-83.7 1.5 3.68
1,2,4-Trimethylbenzene 5.1 ug/m3 11/05/19 17:02 95-63-63.7 1.7 3.68
m&p-Xylene ND ug/m3 11/05/19 17:02 179601-23-16.5 2.6 3.68
o-Xylene ND ug/m3 11/05/19 17:02 95-47-63.2 1.3 3.68
REPORT OF LABORATORY ANALYSIS
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Page 13 of 21
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
642610
TO-15
TO-15
TO15 MSV AIR Low Level
Associated Lab Samples:92451420001, 92451420002, 92451420003, 92451420004, 92451420005, 92451420006, 92451420007,
92451420008
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 3460718
Associated Lab Samples: 92451420001, 92451420002, 92451420003, 92451420004, 92451420005, 92451420006, 92451420007,
92451420008
Matrix: Air
AnalyzedMDL
1,2,3-Trimethylbenzene ug/m3 ND 1.0 11/03/19 14:410.40
1,2,4-Trimethylbenzene ug/m3 ND 1.0 11/03/19 14:410.45
Acetone ug/m3 ND 2.4 11/03/19 14:411.2
Benzene ug/m3 ND 0.32 11/03/19 14:410.15
Carbon disulfide ug/m3 ND 0.63 11/03/19 14:410.22
Chloroform ug/m3 ND 0.50 11/03/19 14:410.20
Chloromethane ug/m3 ND 0.42 11/03/19 14:410.16
Ethylbenzene ug/m3 ND 0.88 11/03/19 14:410.30
Isopropylbenzene (Cumene)ug/m3 ND 2.5 11/03/19 14:410.38
m&p-Xylene ug/m3 ND 1.8 11/03/19 14:410.70
n-Butylbenzene ug/m3 ND 2.8 11/03/19 14:411.1
n-Propylbenzene ug/m3 ND 2.5 11/03/19 14:410.40
Naphthalene ug/m3 1.4J 2.7 11/03/19 14:411.3
o-Xylene ug/m3 ND 0.88 11/03/19 14:410.34
p-Isopropyltoluene ug/m3 ND 1.1 11/03/19 14:410.52
Toluene ug/m3 ND 0.77 11/03/19 14:410.35
Trichloroethene ug/m3 ND 0.55 11/03/19 14:410.25
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3460719LABORATORY CONTROL SAMPLE:
LCSSpike
1,2,3-Trimethylbenzene ug/m3 56.849.5 115 65-147
1,2,4-Trimethylbenzene ug/m3 56.853 107 70-134
Acetone ug/m3 24.726.6 93 67-130
Benzene ug/m3 32.334.4 94 70-130
Carbon disulfide ug/m3 33.032.9 100 56-137
Chloroform ug/m3 51.052.6 97 70-130
Chloromethane ug/m3 23.022.2 103 66-130
Ethylbenzene ug/m3 46.745.5 103 67-131
Isopropylbenzene (Cumene)ug/m3 52.349.5 106 70-133
m&p-Xylene ug/m3 48.745.9 106 70-132
n-Butylbenzene ug/m3 58.256.9 102 65-150
n-Propylbenzene ug/m3 52.551 103 70-143
Naphthalene ug/m3 51.952.7 99 56-130
o-Xylene ug/m3 47.044.1 107 70-130
p-Isopropyltoluene ug/m3 61.456.9 108 70-130
Toluene ug/m3 38.839.4 98 70-130
Trichloroethene ug/m3 56.956.3 101 70-130
REPORT OF LABORATORY ANALYSIS
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[phone]
Page 14 of 21
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
10497284005
3462125SAMPLE DUPLICATE:
1,2,3-Trimethylbenzene ug/m3 ND 259.3 U
1,2,4-Trimethylbenzene ug/m3 ND 259.3 U
Acetone ug/m3 13.4J 2512.2J
Benzene ug/m3 ND 253.0 U
Carbon disulfide ug/m3 ND 255.9 U
Chloroform ug/m3 ND 254.6 U
Chloromethane ug/m3 ND 253.9 U
Ethylbenzene ug/m3 ND 258.3 U
Isopropylbenzene (Cumene)ug/m3 ND 2523.4 U
m&p-Xylene ug/m3 ND 2516.5 U
n-Butylbenzene ug/m3 ND 2526.1 U
n-Propylbenzene ug/m3 ND 2523.4 U
Naphthalene ug/m3 ND 2524.9 U
o-Xylene ug/m3 ND 258.3 U
p-Isopropyltoluene ug/m3 ND 2510.5 U
Toluene ug/m3 ND 257.2 U
Trichloroethene ug/m3 ND 255.1 U
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
10497284006
3462126SAMPLE DUPLICATE:
1,2,3-Trimethylbenzene ug/m3 ND 259.5 U
1,2,4-Trimethylbenzene ug/m3 ND 259.5 U
Acetone ug/m3 21.7J 2518.9J
Benzene ug/m3 ND 253.1 U
Carbon disulfide ug/m3 ND 256.0 U
Chloroform ug/m3 ND 254.7 U
Chloromethane ug/m3 ND 254.0 U
Ethylbenzene ug/m3 ND 258.4 U
Isopropylbenzene (Cumene)ug/m3 ND 2523.8 U
m&p-Xylene ug/m3 ND 2516.8 U
n-Butylbenzene ug/m3 ND 2526.5 U
n-Propylbenzene ug/m3 ND 2523.8 U
Naphthalene ug/m3 12.8J 2513.6J
o-Xylene ug/m3 ND 258.4 U
p-Isopropyltoluene ug/m3 ND 2510.6 U
Toluene ug/m3 ND 257.3 U
Trichloroethene ug/m3 ND 255.2 U
REPORT OF LABORATORY ANALYSIS
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Huntersville, NC 28078
[phone]
Page 15 of 21
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
643096
TO-15
TO-15
TO15 MSV AIR Low Level
Associated Lab Samples: 92451420009
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 3462747
Associated Lab Samples:92451420009
Matrix: Air
AnalyzedMDL
1,2,3-Trimethylbenzene ug/m3 ND 1.0 11/05/19 14:320.40
1,2,4-Trimethylbenzene ug/m3 ND 1.0 11/05/19 14:320.45
Acetone ug/m3 ND 2.4 11/05/19 14:321.2
Benzene ug/m3 ND 0.32 11/05/19 14:320.15
Carbon disulfide ug/m3 ND 0.63 11/05/19 14:320.22
Chloroform ug/m3 ND 0.50 11/05/19 14:320.20
Chloromethane ug/m3 ND 0.42 11/05/19 14:320.16
Ethylbenzene ug/m3 ND 0.88 11/05/19 14:320.30
Isopropylbenzene (Cumene)ug/m3 ND 2.5 11/05/19 14:320.38
m&p-Xylene ug/m3 ND 1.8 11/05/19 14:320.70
n-Butylbenzene ug/m3 ND 2.8 11/05/19 14:321.1
n-Propylbenzene ug/m3 ND 2.5 11/05/19 14:320.40
Naphthalene ug/m3 ND 2.7 11/05/19 14:321.3
o-Xylene ug/m3 ND 0.88 11/05/19 14:320.34
p-Isopropyltoluene ug/m3 ND 1.1 11/05/19 14:320.52
Toluene ug/m3 ND 0.77 11/05/19 14:320.35
Trichloroethene ug/m3 ND 0.55 11/05/19 14:320.25
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
3462748LABORATORY CONTROL SAMPLE:
LCSSpike
1,2,3-Trimethylbenzene ug/m3 56.449.5 114 65-147
1,2,4-Trimethylbenzene ug/m3 54.853 103 70-134
Acetone ug/m3 23.826.6 90 67-130
Benzene ug/m3 32.934.4 96 70-130
Carbon disulfide ug/m3 32.832.9 100 56-137
Chloroform ug/m3 50.752.6 96 70-130
Chloromethane ug/m3 22.022.2 99 66-130
Ethylbenzene ug/m3 46.045.5 101 67-131
Isopropylbenzene (Cumene)ug/m3 51.649.5 104 70-133
m&p-Xylene ug/m3 47.745.9 104 70-132
n-Butylbenzene ug/m3 56.456.9 99 65-150
n-Propylbenzene ug/m3 56.851 111 70-143
Naphthalene ug/m3 48.752.7 92 56-130
o-Xylene ug/m3 45.644.1 103 70-130
p-Isopropyltoluene ug/m3 62.656.9 110 70-130
Toluene ug/m3 37.439.4 95 70-130
Trichloroethene ug/m3 58.156.3 103 70-130
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.Date: 11/06/2019 06:22 PM
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Page 16 of 21
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
10497526002
3463824SAMPLE DUPLICATE:
1,2,3-Trimethylbenzene ug/m3 2.2J 25ND
1,2,4-Trimethylbenzene ug/m3 11.4 3 2511.7
Acetone ug/m3 93.5 5 2598.4
Benzene ug/m3 77.7 1 2578.2
Carbon disulfide ug/m3 28.5 1 2528.8
Chloroform ug/m3 3.0 8 252.7
Chloromethane ug/m3 ND 254.9
Ethylbenzene ug/m3 48.0 1 2548.6
Isopropylbenzene (Cumene)ug/m3 3.0J 25ND
m&p-Xylene ug/m3 131 3 25136
n-Butylbenzene ug/m3 ND 25ND
n-Propylbenzene ug/m3 5.0J 25ND
Naphthalene ug/m3 ND 25ND
o-Xylene ug/m3 50.6 5 2553.0
p-Isopropyltoluene ug/m3 ND 25ND
Toluene ug/m3 397 2 25405
Trichloroethene ug/m3 518 0 25520
Parameter Units
Dup
Result
Max
RPD QualifiersRPDResult
10497734002
3463825SAMPLE DUPLICATE:
1,2,3-Trimethylbenzene ug/m3 ND 25ND
1,2,4-Trimethylbenzene ug/m3 ND 25ND
Acetone ug/m3 ND 25ND
Benzene ug/m3 ND 25ND
Carbon disulfide ug/m3 ND 25ND
Chloroform ug/m3 ND 25ND
Chloromethane ug/m3 ND 25ND
Ethylbenzene ug/m3 ND 25ND
Isopropylbenzene (Cumene)ug/m3 ND 25ND
m&p-Xylene ug/m3 ND 25ND
n-Butylbenzene ug/m3 ND 25ND
n-Propylbenzene ug/m3 ND 25ND
Naphthalene ug/m3 ND 25ND
o-Xylene ug/m3 ND 25ND
p-Isopropyltoluene ug/m3 ND 25ND
Toluene ug/m3 158J 25ND
Trichloroethene ug/m3 36300 9 2539600
REPORT OF LABORATORY ANALYSIS
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Page 17 of 21
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
LABORATORIES
Pace Analytical Services - MinneapolisPASI-M
REPORT OF LABORATORY ANALYSIS
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Page 18 of 21
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92451420
Abernethy Lumber SHR-001
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92451420001 642610SS-IE MP-3 CAN#3111 TO-15
92451420002 642610SS-IE MP-1 CAN#3025 TO-15
92451420003 642610SS-ID MP-2 CAN#3012 TO-15
92451420004 642610SS-ID MP-5 CAN#3221 TO-15
92451420005 642610SS-IC MP-1 CAN#2013 TO-15
92451420006 642610SS-IB MP-3 CAN#3040 TO-15
92451420007 642610SS-IB MP-2 CAN#2920 TO-15
92451420008 642610SS-IA MP-2 CAN#2196 TO-15
92451420009 643096Dup-1 CAN#0913 TO-15
REPORT OF LABORATORY ANALYSIS
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Page 19 of 21
Page 20 of 21
Page 21 of 21
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
November 7, 2019
Andrew Besu
Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
Project Location: Charlotte, NC
Client Job Number:
Project Number: SHR-001
Laboratory Work Order Number: 19K0182
Enclosed are results of analyses for samples received by the laboratory on November 5, 2019. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kerry K. McGee
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL SUMMARY
11/7/2019Hart & Hickman - Charlotte, NC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
ATTN: Andrew Besu
SHR-001
19K0182
The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB
Charlotte, NC
SHR-001
SS-IC MP-2 19K0182-01 Sub Slab EPA TO-15
SS-IA MP-3 19K0182-02 Sub Slab EPA TO-15
Page 2 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
EPA TO-15
Qualifications:
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be
biased on the low side.
Analyte & Samples(s) Qualified:
p-Isopropyltoluene (p-Cymene)
19K0182-01[SS-IC MP-2], 19K0182-02[SS-IA MP-3], B245447-BLK1, B245447-BS1
The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Technical Representative
Page 3 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 11/5/2019
Work Order: 19K0182Sample Description/Location:
Field Sample #: SS-IC MP-2
Sample ID: 19K0182-01
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -5.7
Sampled: 11/1/2019 11:45
Canister ID: 1113
Flow Controller ID: 4138
Sub Description/Location:
Canister Size: 6 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 1 hr
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 8.4 8.0 11/7/19 14:35 BRF204192.8 6.6
Benzene 2.9 0.20 11/7/19 14:35 BRF9.4 40.640.082 0.26
n-Butylbenzene ND 0.58 11/7/19 14:35 BRFND43.20.13 0.72
Carbon Disulfide ND 2.0 11/7/19 14:35 BRFND46.20.14 0.43
Chloroform ND 0.20 11/7/19 14:35 BRFND40.980.074 0.36
Chloromethane ND 0.40 11/7/19 14:35 BRFND40.830.14 0.28
Ethylbenzene 4.2 0.20 11/7/19 14:35 BRF1840.870.12 0.50
Isopropylbenzene (Cumene)ND 0.51 11/7/19 14:35 BRFND42.50.16 0.79
p-Isopropyltoluene (p-Cymene)ND 0.46 11/7/19 14:35 BRFL-03 ND 42.50.14 0.75
Naphthalene ND 0.20 11/7/19 14:35 BRFND41.00.15 0.80
Propylbenzene 0.38 0.51 11/7/19 14:35 BRFJ1.9 42.50.18 0.87
Toluene 80 0.20 11/7/19 14:35 BRF30040.750.10 0.39
Trichloroethylene ND 0.20 11/7/19 14:35 BRFND41.10.081 0.43
1,2,4-Trimethylbenzene 6.2 0.20 11/7/19 14:35 BRF3040.980.13 0.63
m&p-Xylene 20 0.40 11/7/19 14:35 BRF8641.70.23 1.00
o-Xylene 10 0.20 11/7/19 14:35 BRF4440.870.12 0.54
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)103 11/7/19 14:3570-130
Tentatively Identified Compounds - Estimated Values Reported
Retention
Time
ppbv
Results
Benzene, 1,2,3-trimethyl- (02)2.7 11/7/19 14:35 BRF12.83 4
Page 4 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ANALYTICAL RESULTS
Project Location: Charlotte, NC
Date Received: 11/5/2019
Work Order: 19K0182Sample Description/Location:
Field Sample #: SS-IA MP-3
Sample ID: 19K0182-02
Sample Matrix: Sub Slab
Initial Vacuum(in Hg): -25
Final Vacuum(in Hg): -5
Receipt Vacuum(in Hg): -6.2
Sampled: 11/1/2019 12:58
Canister ID: 1473
Flow Controller ID: 4139
Sub Description/Location:
Canister Size: 6 liter
Flow Controller Type: Fixed-Orifice
Flow Controller Calibration
RPD Pre and Post-Sampling:
Sample Type: 1 hr
RLResults AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte
Date/Time
EPA TO-15
ppbv ug/m3
MDL MDL
Acetone 5.9 8.0 11/7/19 15:03 BRFJ144192.8 6.6
Benzene 2.0 0.20 11/7/19 15:03 BRF6.4 40.640.082 0.26
n-Butylbenzene ND 0.58 11/7/19 15:03 BRFND43.20.13 0.72
Carbon Disulfide ND 2.0 11/7/19 15:03 BRFND46.20.14 0.43
Chloroform ND 0.20 11/7/19 15:03 BRFND40.980.074 0.36
Chloromethane ND 0.40 11/7/19 15:03 BRFND40.830.14 0.28
Ethylbenzene 3.2 0.20 11/7/19 15:03 BRF1440.870.12 0.50
Isopropylbenzene (Cumene)0.16 0.51 11/7/19 15:03 BRFJ0.81 42.50.16 0.79
p-Isopropyltoluene (p-Cymene)ND 0.46 11/7/19 15:03 BRFL-03 ND 42.50.14 0.75
Naphthalene 0.24 0.20 11/7/19 15:03 BRF1.3 41.00.15 0.80
Propylbenzene 0.58 0.51 11/7/19 15:03 BRF2.9 42.50.18 0.87
Toluene 55 0.20 11/7/19 15:03 BRF21040.750.10 0.39
Trichloroethylene ND 0.20 11/7/19 15:03 BRFND41.10.081 0.43
1,2,4-Trimethylbenzene 8.0 0.20 11/7/19 15:03 BRF3940.980.13 0.63
m&p-Xylene 15 0.40 11/7/19 15:03 BRF6641.70.23 1.00
o-Xylene 8.4 0.20 11/7/19 15:03 BRF3640.870.12 0.54
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1)105 11/7/19 15:0370-130
Tentatively Identified Compounds - Estimated Values Reported
Retention
Time
ppbv
Results
1,2,3-Trimethylbenzene 2.4 11/7/19 15:03 BRF12.83 4
Page 5 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Sample Extraction Data
Prep Method: TO-15 Prep-EPA TO-15
Lab Number [Field ID]Batch Date
Pressure
Dilution
Pre
Dilution
Pre-Dil
Initial
mL
Pre-Dil
Final
mL
Default
Injection
mL
Actual
Injection
mL
19K0182-01 [SS-IC MP-2]B245447 1.5 1 N/A 1000 400 150 11/07/19
19K0182-02 [SS-IA MP-3]B245447 1.5 1 N/A 1000 400 150 11/07/19
Page 6 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
ug/m3 Spike Level
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Flag/Qual Analyte
Air Toxics by EPA Compendium Methods - Quality Control
QUALITY CONTROL
RL
ppbv
Results RL Results ppbv
Batch B245447 - TO-15 Prep
Blank (B245447-BLK1)Prepared & Analyzed: 11/07/19
1.4NDAcetone
0.035NDBenzene
0.10NDn-Butylbenzene
0.35NDCarbon Disulfide
0.035NDChloroform
0.070NDChloromethane
0.035NDEthylbenzene
0.089NDIsopropylbenzene (Cumene)
0.080 L-03NDp-Isopropyltoluene (p-Cymene)
0.035NDNaphthalene
0.089NDPropylbenzene
0.035NDToluene
0.035NDTrichloroethylene
0.035ND1,2,4-Trimethylbenzene
0.070NDm&p-Xylene
0.035NDo-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1018.10
LCS (B245447-BS1)Prepared & Analyzed: 11/07/19
5.00 70-1301065.29Acetone
5.00 70-13096.74.84Benzene
1.14 70-13074.60.851n-Butylbenzene
5.00 70-1301025.09Carbon Disulfide
5.00 70-1301025.09Chloroform
5.00 70-13090.54.52Chloromethane
5.00 70-1301015.07Ethylbenzene
1.27 70-13070.30.893Isopropylbenzene (Cumene)
1.14 L-0370-13065.20.743p-Isopropyltoluene (p-Cymene)*
5.00 70-1301035.16Naphthalene
1.27 50-15075.70.961Propylbenzene
5.00 70-1301065.28Toluene
5.00 70-13097.44.87Trichloroethylene
5.00 70-1301095.471,2,4-Trimethylbenzene
10.0 70-13010510.5m&p-Xylene
5.00 70-1301035.15o-Xylene
8.00 70-130Surrogate: 4-Bromofluorobenzene (1)1068.44
Page 7 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
Note: Blank Subtraction is not performed unless otherwise noted
*QC result is outside of established limits.
Wide recovery limits established for difficult compound.
Wide RPD limits established for difficult compound.
#Data exceeded client recommended or regulatory level
RL Reporting Limit
MDL Method Detection Limit
RPD Relative Percent Difference
LCS Laboratory Control Sample
Laboratory Control SampleLCS Dup Duplicate Laboratory Control Sample
MS Matrix Spike Sample
MS Dup Duplicate Matrix Spike Sample
REC Recovery
QC Quality Control
ppbv Parts per billion volume
EPA United States Environmental Protection Agency
Percent Recovery% REC
ND Not Detected
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
Not ApplicableN/A
DL Detection Limit
Not CalculatedNC
LFB/LCS Lab Fortified Blank/Lab Control Sample
ORP Oxidation-Reduction Potential
Not dry weight correctedwet
Percent weight% wt
KilogramKg
Gramg
Milligrammg
Microgramg
Nanogramng
LiterL
MillilitermL
Microliter L
Cubic Meterm3
Extractable Petroleum HydrocarbonsEPH
Volatile Petroleum HydrocarbonsVPH
Air Petroleum HydrocarbonsAPH
Flame Ionization DetectorFID
Photo Ionization DetectorPID
FLAG/QUALIFIER SUMMARY
Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
J
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this
compound is likely to be biased on the low side.
L-03
ANALYST
Rebecca FaustRLF
Raisa A. PetraitisRAP
PDF Management StationSTATION
Kerry K. McGeeKKM
Brittany R. FiskBRF
Page 8 of 12
39 Spruce Street * East Longmeadow, MA 01028 * FAX [phone] * TEL. [phone]
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
EPA TO-15 in Air
AIHA,NY,ME,NHAcetone
AIHA,FL,NJ,NY,ME,NH,VABenzene
AIHA,NJ,NY,ME,NH,VACarbon Disulfide
AIHA,FL,NJ,NY,ME,NH,VAChloroform
AIHA,FL,NJ,NY,ME,NH,VAChloromethane
AIHA,FL,NJ,NY,ME,NH,VAEthylbenzene
AIHA,NJ,NY,ME,NHIsopropylbenzene (Cumene)
NY,ME,NHNaphthalene
AIHA,FL,NJ,NY,ME,NH,VAToluene
AIHA,FL,NJ,NY,ME,NH,VATrichloroethylene
VA1,2,3-Trimethylbenzene
AIHA,NJ,NY,ME,NH1,2,4-Trimethylbenzene
AIHA,FL,NJ,NY,ME,NH,VAm&p-Xylene
AIHA,FL,NJ,NY,ME,NH,VAo-Xylene
The CON-TEST Environmental Laboratory operates under the following certifications and accreditations:
Code Description Number Expires
100033AIHA-LAP, LLC - ISO17025:2017AIHA 03/1/2020
M-MA100Massachusetts DEPMA 06/30/2020
PH-0567Connecticut Department of Publilc HealthCT 09/30/2021
10899 NELAPNew York State Department of HealthNY 04/1/2020
2516 NELAPNew Hampshire Environmental LabNH-S 02/5/2020
LAO00112Rhode Island Department of HealthRI 12/30/2019
652North Carolina Div. of Water QualityNC 12/31/2019
MA007 NELAPNew Jersey DEPNJ 06/30/2020
E871027 NELAPFlorida Department of HealthFL 06/30/2020
LL015036Vermont Department of Health Lead LaboratoryVT 07/30/2020
2011028State of MaineME 06/9/2021
460217Commonwealth of VirginiaVA 12/14/2019
2557 NELAPNew Hampshire Environmental LabNH-P 09/6/2020
VT-255716Vermont Department of Health Drinking WaterVT-DW 06/12/2020
25703North Carolina Department of HealthNC-DW 07/31/2020
68-05812Commonwealth of Pennsylvania DEPPA 06/30/2020
Page 9 of 12
Page 10 of 12
Page 11 of 12
Page 12 of 12

Appendix E

Sub-Slab Soil Gas Risk Calculators

Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
SS-1A_MP-2/Dup-1
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A_MP-2/Dup-1
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A_MP-2/Dup-1
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A_MP-2/Dup-1
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
26 67-64-1 Acetone ug/m3
2.3 71-43-2 Benzene ug/m3
8.2 104-51-8 Butylbenzene, n-ug/m3
16.3 75-15-0 Carbon Disulfide ug/m3
1 74-87-3 Chloromethane ug/m3
10.3 91-20-3 ~Naphthalene ug/m3
29.2 108-88-3 Toluene ug/m3
15.9 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
5.4 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
0.77 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A_MP-2/Dup-1
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 3.9E-06 1.1E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 3.0E-07 8.9E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A_MP-2/Dup-1
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 26 0.78 -6.5E+03 2.4E-05
71-43-2 Benzene 2.3 0.069 3.6E-01 6.3E+00 1.9E-07 2.2E-03
104-51-8 Butylbenzene, n-8.2 0.246 --
75-15-0 Carbon Disulfide 16.3 0.489 -1.5E+02 6.7E-04
74-87-3 Chloromethane 1 0.03 -1.9E+01 3.2E-04
91-20-3 ~Naphthalene 10.3 0.309 8.3E-02 6.3E-01 3.7E-06 9.9E-02
108-88-3 Toluene 29.2 0.876 -1.0E+03 1.7E-04
526-73-8 Trimethylbenzene, 1,2,3-15.9 0.477 -1.3E+01 7.6E-03
95-63-6 Trimethylbenzene, 1,2,4-5.4 0.162 -1.3E+01 2.6E-03
95-47-6 Xylene, o-0.77 0.0231 -2.1E+01 2.2E-04
Cumulative:3.9E-06 1.1E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1A MP-3
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A MP-3
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A MP-3
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A MP-3
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
14 67-64-1 Acetone ug/m3
6.4 71-43-2 Benzene ug/m3
0.81 98-82-8 Cumene ug/m3
14 100-41-4 Ethylbenzene ug/m3
1.3 91-20-3 ~Naphthalene ug/m3
2.9 103-65-1 Propyl benzene ug/m3
210 108-88-3 Toluene ug/m3
13 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
39 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
66 108-38-3 Xylene, m-ug/m3
36 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A MP-3
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 1.4E-06 7.5E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.1E-07 5.9E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1A MP-3
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 14 0.42 -6.5E+03 1.3E-05
71-43-2 Benzene 6.4 0.192 3.6E-01 6.3E+00 5.3E-07 6.1E-03
98-82-8 Cumene 0.81 0.0243 -8.3E+01 5.8E-05
100-41-4 Ethylbenzene 14 0.42 1.1E+00 2.1E+02 3.7E-07 4.0E-04
91-20-3 ~Naphthalene 1.3 0.039 8.3E-02 6.3E-01 4.7E-07 1.2E-02
103-65-1 Propyl benzene 2.9 0.087 -2.1E+02 8.3E-05
108-88-3 Toluene 210 6.3 -1.0E+03 1.2E-03
526-73-8 Trimethylbenzene, 1,2,3-13 0.39 -1.3E+01 6.2E-03
95-63-6 Trimethylbenzene, 1,2,4-39 1.17 -1.3E+01 1.9E-02
108-38-3 Xylene, m-66 1.98 -2.1E+01 1.9E-02
95-47-6 Xylene, o-36 1.08 -2.1E+01 1.0E-02
Cumulative:1.4E-06 7.5E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1B_MP-2
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-2
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-2
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-2
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
36.9 67-64-1 Acetone ug/m3
0.52 71-43-2 Benzene ug/m3
12.6 75-15-0 Carbon Disulfide ug/m3
2.2 74-87-3 Chloromethane ug/m3
1 98-82-8 Cumene ug/m3
4.1 100-41-4 Ethylbenzene ug/m3
6 91-20-3 ~Naphthalene ug/m3
4.2 103-65-1 Propyl benzene ug/m3
3260 108-88-3 Toluene ug/m3
73.3 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
64.8 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
6 108-38-3 Xylene, m-ug/m3
2.7 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-2
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 2.3E-06 1.5E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.8E-07 1.2E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-2
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 36.9 1.107 -6.5E+03 3.4E-05
71-43-2 Benzene 0.52 0.0156 3.6E-01 6.3E+00 4.3E-08 5.0E-04
75-15-0 Carbon Disulfide 12.6 0.378 -1.5E+02 5.2E-04
74-87-3 Chloromethane 2.2 0.066 -1.9E+01 7.0E-04
98-82-8 Cumene 1 0.03 -8.3E+01 7.2E-05
100-41-4 Ethylbenzene 4.1 0.123 1.1E+00 2.1E+02 1.1E-07 1.2E-04
91-20-3 ~Naphthalene 6 0.18 8.3E-02 6.3E-01 2.2E-06 5.8E-02
103-65-1 Propyl benzene 4.2 0.126 -2.1E+02 1.2E-04
108-88-3 Toluene 3260 97.8 -1.0E+03 1.9E-02
526-73-8 Trimethylbenzene, 1,2,3-73.3 2.199 -1.3E+01 3.5E-02
95-63-6 Trimethylbenzene, 1,2,4-64.8 1.944 -1.3E+01 3.1E-02
108-38-3 Xylene, m-6 0.18 -2.1E+01 1.7E-03
95-47-6 Xylene, o-2.7 0.081 -2.1E+01 7.8E-04
Cumulative:2.3E-06 1.5E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1B_MP-3
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-3
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-3
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-3
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
20.2 67-64-1 Acetone ug/m3
0.37 71-43-2 Benzene ug/m3
6.2 104-51-8 Butylbenzene, n-ug/m3
5.2 75-15-0 Carbon Disulfide ug/m3
1.5 74-87-3 Chloromethane ug/m3
6.7 91-20-3 ~Naphthalene ug/m3
1.8 103-65-1 Propyl benzene ug/m3
133 108-88-3 Toluene ug/m3
3.7 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
3.9 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
1.6 108-38-3 Xylene, m-ug/m3
0.85 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-3
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 2.5E-06 7.0E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.9E-07 5.6E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1B_MP-3
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 20.2 0.606 -6.5E+03 1.9E-05
71-43-2 Benzene 0.37 0.0111 3.6E-01 6.3E+00 3.1E-08 3.5E-04
104-51-8 Butylbenzene, n-6.2 0.186 --
75-15-0 Carbon Disulfide 5.2 0.156 -1.5E+02 2.1E-04
74-87-3 Chloromethane 1.5 0.045 -1.9E+01 4.8E-04
91-20-3 ~Naphthalene 6.7 0.201 8.3E-02 6.3E-01 2.4E-06 6.4E-02
103-65-1 Propyl benzene 1.8 0.054 -2.1E+02 5.2E-05
108-88-3 Toluene 133 3.99 -1.0E+03 7.7E-04
526-73-8 Trimethylbenzene, 1,2,3-3.7 0.111 -1.3E+01 1.8E-03
95-63-6 Trimethylbenzene, 1,2,4-3.9 0.117 -1.3E+01 1.9E-03
108-38-3 Xylene, m-1.6 0.048 -2.1E+01 4.6E-04
95-47-6 Xylene, o-0.85 0.0255 -2.1E+01 2.4E-04
Cumulative:2.5E-06 7.0E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1C_MP-1
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C_MP-1
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C_MP-1
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C_MP-1
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
31.6 67-64-1 Acetone ug/m3
0.52 71-43-2 Benzene ug/m3
30.9 104-51-8 Butylbenzene, n-ug/m3
1.3 75-15-0 Carbon Disulfide ug/m3
2.7 74-87-3 Chloromethane ug/m3
1.5 100-41-4 Ethylbenzene ug/m3
4.1 91-20-3 ~Naphthalene ug/m3
1.3 103-65-1 Propyl benzene ug/m3
513 108-88-3 Toluene ug/m3
28.1 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
21.3 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
3.4 108-38-3 Xylene, m-ug/m3
1.3 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C_MP-1
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 1.6E-06 6.9E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.2E-07 5.5E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C_MP-1
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 31.6 0.948 -6.5E+03 2.9E-05
71-43-2 Benzene 0.52 0.0156 3.6E-01 6.3E+00 4.3E-08 5.0E-04
104-51-8 Butylbenzene, n-30.9 0.927 --
75-15-0 Carbon Disulfide 1.3 0.039 -1.5E+02 5.3E-05
74-87-3 Chloromethane 2.7 0.081 -1.9E+01 8.6E-04
100-41-4 Ethylbenzene 1.5 0.045 1.1E+00 2.1E+02 4.0E-08 4.3E-05
91-20-3 ~Naphthalene 4.1 0.123 8.3E-02 6.3E-01 1.5E-06 3.9E-02
103-65-1 Propyl benzene 1.3 0.039 -2.1E+02 3.7E-05
108-88-3 Toluene 513 15.39 -1.0E+03 3.0E-03
526-73-8 Trimethylbenzene, 1,2,3-28.1 0.843 -1.3E+01 1.3E-02
95-63-6 Trimethylbenzene, 1,2,4-21.3 0.639 -1.3E+01 1.0E-02
108-38-3 Xylene, m-3.4 0.102 -2.1E+01 9.8E-04
95-47-6 Xylene, o-1.3 0.039 -2.1E+01 3.7E-04
Cumulative:1.6E-06 6.9E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1C MP-2
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C MP-2
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C MP-2
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C MP-2
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
20 67-64-1 Acetone ug/m3
9.4 71-43-2 Benzene ug/m3
1.9 103-65-1 Propyl benzene ug/m3
300 108-88-3 Toluene ug/m3
12 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
30 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
86 108-38-3 Xylene, m-ug/m3
44 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C MP-2
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 7.8E-07 6.8E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 6.0E-08 5.4E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1C MP-2
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 20 0.6 -6.5E+03 1.9E-05
71-43-2 Benzene 9.4 0.282 3.6E-01 6.3E+00 7.8E-07 9.0E-03
103-65-1 Propyl benzene 1.9 0.057 -2.1E+02 5.5E-05
108-88-3 Toluene 300 9 -1.0E+03 1.7E-03
526-73-8 Trimethylbenzene, 1,2,3-12 0.36 -1.3E+01 5.8E-03
95-63-6 Trimethylbenzene, 1,2,4-30 0.9 -1.3E+01 1.4E-02
108-38-3 Xylene, m-86 2.58 -2.1E+01 2.5E-02
95-47-6 Xylene, o-44 1.32 -2.1E+01 1.3E-02
Cumulative:7.8E-07 6.8E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1D_MP-2
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-2
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-2
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-2
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
24.6 67-64-1 Acetone ug/m3
66.3 104-51-8 Butylbenzene, n-ug/m3
1.4 74-87-3 Chloromethane ug/m3
0.97 98-82-8 Cumene ug/m3
7.3 91-20-3 ~Naphthalene ug/m3
3.1 103-65-1 Propyl benzene ug/m3
1000 108-88-3 Toluene ug/m3
60 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
46.6 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
2.5 108-38-3 Xylene, m-ug/m3
1.1 95-47-6 Xylene, o-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-2
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 2.7E-06 1.3E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 2.0E-07 1.0E-02 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-2
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 24.6 0.738 -6.5E+03 2.3E-05
104-51-8 Butylbenzene, n-66.3 1.989 --
74-87-3 Chloromethane 1.4 0.042 -1.9E+01 4.5E-04
98-82-8 Cumene 0.97 0.0291 -8.3E+01 7.0E-05
91-20-3 ~Naphthalene 7.3 0.219 8.3E-02 6.3E-01 2.7E-06 7.0E-02
103-65-1 Propyl benzene 3.1 0.093 -2.1E+02 8.9E-05
108-88-3 Toluene 1000 30 -1.0E+03 5.8E-03
526-73-8 Trimethylbenzene, 1,2,3-60 1.8 -1.3E+01 2.9E-02
95-63-6 Trimethylbenzene, 1,2,4-46.6 1.398 -1.3E+01 2.2E-02
108-38-3 Xylene, m-2.5 0.075 -2.1E+01 7.2E-04
95-47-6 Xylene, o-1.1 0.033 -2.1E+01 3.2E-04
Cumulative:2.7E-06 1.3E-01
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1D_MP-5
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-5
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-5
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-5
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
21.8 67-64-1 Acetone ug/m3
0.36 71-43-2 Benzene ug/m3
5 75-15-0 Carbon Disulfide ug/m3
1.8 74-87-3 Chloromethane ug/m3
1.2 100-41-4 Ethylbenzene ug/m3
3.7 91-20-3 ~Naphthalene ug/m3
1.3 103-65-1 Propyl benzene ug/m3
478 108-88-3 Toluene ug/m3
9.9 526-73-8 Trimethylbenzene, 1,2,3-ug/m3
8.1 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
1.8 108-38-3 Xylene, m-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-5
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 1.4E-06 4.9E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.1E-07 3.9E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1D_MP-5
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 21.8 0.654 -6.5E+03 2.0E-05
71-43-2 Benzene 0.36 0.0108 3.6E-01 6.3E+00 3.0E-08 3.5E-04
75-15-0 Carbon Disulfide 5 0.15 -1.5E+02 2.1E-04
74-87-3 Chloromethane 1.8 0.054 -1.9E+01 5.8E-04
100-41-4 Ethylbenzene 1.2 0.036 1.1E+00 2.1E+02 3.2E-08 3.5E-05
91-20-3 ~Naphthalene 3.7 0.111 8.3E-02 6.3E-01 1.3E-06 3.5E-02
103-65-1 Propyl benzene 1.3 0.039 -2.1E+02 3.7E-05
108-88-3 Toluene 478 14.34 -1.0E+03 2.8E-03
526-73-8 Trimethylbenzene, 1,2,3-9.9 0.297 -1.3E+01 4.7E-03
95-63-6 Trimethylbenzene, 1,2,4-8.1 0.243 -1.3E+01 3.9E-03
108-38-3 Xylene, m-1.8 0.054 -2.1E+01 5.2E-04
Cumulative:1.4E-06 4.9E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1E_MP-1
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-1
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-1
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-1
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
18.9 67-64-1 Acetone ug/m3
0.66 75-15-0 Carbon Disulfide ug/m3
1.3 74-87-3 Chloromethane ug/m3
3.8 91-20-3 ~Naphthalene ug/m3
26.5 108-88-3 Toluene ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-1
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 1.4E-06 3.7E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.1E-07 2.9E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-1
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 18.9 0.567 -6.5E+03 1.8E-05
75-15-0 Carbon Disulfide 0.66 0.0198 -1.5E+02 2.7E-05
74-87-3 Chloromethane 1.3 0.039 -1.9E+01 4.2E-04
91-20-3 ~Naphthalene 3.8 0.114 8.3E-02 6.3E-01 1.4E-06 3.6E-02
108-88-3 Toluene 26.5 0.795 -1.0E+03 1.5E-04
Cumulative:1.4E-06 3.7E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
SS-1E_MP-3
North Carolina Department of Environmental Quality
Risk Calculator
Former Abernethy Lumber
Charlotte, NC
Brownfields
20062-16-060
May 2019
May 2019 EPA RSL Table
11/8/2019
Prepared By:Andrew Besu
Hart & Hickman, PC
Trinh DeSa, PE
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-3
Form No.
Input Form 1A Complete Exposure Pathways
Input Form 1B Exposure Factors and Target Risks
Input Form 1C Contaminant Migration Parameters
Input Form 1D Sample Statistics
Input Form 2A Soil Exposure Point Concentration Table
Input Form 2B Groundwater Exposure Point Concentration Table
Input Form 2C Surface Water Exposure Point Concentration Table
Input Form 2D Soil Gas Exposure Point Concentration Table
Input Form 2E Indoor Air Exposure Point Concentration Table
Output Form 1A Risk for Individual Pathways
Output Form 1B Sitewide Risk
Output Form 2A Resident Soil
Output Form 2B Resident Groundwater Use
Output Form 2C Non-Residential Worker Soil
Output Form 2D Non-Residential Worker Groundwater Use
Output Form 2E Construction Worker Soil
Output Form 2F Recreator/Trespasser Soil
Output Form 2G Recreator/Trespasser Surface Water
Output Form 3A Resident Groundwater to Indoor Air
Output Form 3B Resident Soil Gas to Indoor Air
Output Form 3C Resident Indoor Air
Output Form 3D Non-Residential Worker Groundwater to Indoor Air
Output Form 3E Non-Residential Worker Soil Gas to Indoor Air
Output Form 3F Non-Residential Worker Indoor Air
Output Form 4A Soil to Groundwater - Forward Mode
Output Form 4B Groundwater to Groundwater - Forward Mode
Output Form 4C Soil to Surface Water - Forward Mode
Output Form 4D Groundwater to Surface Water - Forward Mode
Output Form 4E Soil to Groundwater - Backward Mode
Output Form 4F Groundwater to Groundwater - Backward Mode
Output Form 4G Soil to Surface Water - Backward Mode
Output Form 4H Groundwater to Surface Water - Backward Mode
Output Section 4 - Contaminant Migration to Worksheets
Output Section 3 - Vapor Intrusion Calculators
TOC
Description
DATA INPUT SHEETS
Check box
if included
Input Section 1 - Exposure Pathways & Parameters
Input Section 2 - Exposure Point Concentrations
DATA OUTPUT SHEETS
Output Section 1 - Summary Output for All Calculators
Output Section 2 - Direct Contact Soil and Groundwater Calculators
North Carolina DEQ Risk Calculator
Complete Exposure Pathways
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-3
Note: Risk output will only be calculated for complete exposure pathways.
Receptor Pathway
Check box if
pathway
complete
Soil
Groundwater Use
Soil
Groundwater Use
Construction Worker Soil
Soil
Surface Water
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Groundwater to Indoor Air
Soil Gas to Indoor Air
Indoor Air
Source Soil
Source Groundwater
Source Soil
Source Groundwater
Resident
Non-Residential Worker
CONTAMINANT MIGRATION PATHWAYS
Groundwater
Surface Water
Input Form 1A
VAPOR INTRUSION PATHWAYS
DIRECT CONTACT SOIL AND WATER PATHWAYS
Resident
Non-Residential Worker
Recreator/Trespasser
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-3
Description of Exposure Point Concentration Selection:
Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.
Exposure Point
Concentration
(ug/m3)
Notes:CAS Number Chemical
Minimum
Concentration
(Qualifier)
Maximum
Concentration
(Qualifier)
Units
Location of
Maximum
Concentration
Detection
Frequency
Range of
Detection
Limits
Concentration
Used for
Screening
Background
Value
Screening
Toxicity Value
(Screening
Level) (n/c)
Potential
ARAR/TBC
Value
Potential
ARAR/TBC
Source
COPC Flag
(Y/N)
Rationale for
Selection or
Deletion
19.7 67-64-1 Acetone ug/m3
3.5 91-20-3 ~Naphthalene ug/m3
10.7 108-88-3 Toluene ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-3
Receptor Pathway Carcinogenic
Risk Hazard Index Risk exceeded?
Soil NC NC NC
Groundwater Use*NC NC NC
Soil NC NC NC
Groundwater Use*NC NC NC
Construction Worker Soil NC NC NC
Soil NC NC NC
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 1.3E-06 3.4E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 9.7E-08 2.7E-03 NO
Indoor Air NC NC NC
Pathway Source
Source Soil NC
Source Groundwater NC
Source Soil NC
Source Groundwater NC
3. NM = Not Modeled
4. NC = Pathway not complete
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
DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air
Version Date: May 2019
Basis: May 2019 EPA RSL Table
Site ID: 20062-16-060
Exposure Unit ID: SS-1E_MP-3
CAS #Chemical Name:
Soil Gas
Concentration
(ug/m3)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Conc. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Conc. for Non-
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non-
Carcinogenic
Hazard
Quotient
67-64-1 Acetone 19.7 0.591 -6.5E+03 1.8E-05
91-20-3 ~Naphthalene 3.5 0.105 8.3E-02 6.3E-01 1.3E-06 3.4E-02
108-88-3 Toluene 10.7 0.321 -1.0E+03 6.2E-05
Cumulative:1.3E-06 3.4E-02
All concentrations are in ug/m3
Output Form 3B
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
North Carolina DEQ Risk Calculator