20050-16-060 Brownfields Vapor Assessment Report_Building 2 - South_031921

Brownfields Vapor
Assessment Report

Building 2 - South
Rite Aid Brownfields Site
Charlotte, North Carolina

Brownfields Project ID #20050-16-060

March 19, 2021
H&H Job No. ATL-001

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Brownfields Vapor Assessment Report Building 2 – South Rite Aid Brownfields Site Charlotte, North Carolina H&H Job ATL-001
Table of Contents

1.0 Introduction ..................................................................................................................................... 1
2.0 Previous Assessment Activities ....................................................................................................... 3
3.0 Vapor Assessment Activities ........................................................................................................... 4
3.1 Sub-slab Vapor Point Installation Activities ......................................................................... 4
3.2 Sub-Slab Vapor and Soil Gas Sampling Activities ............................................................... 5
3.3 Quality Assurance/Quality Control ........................................................................................ 6
4.0 Vapor Assessment Results ............................................................................................................. 8
5.0 Summary and Recommendations ............................................................................................... 10
List of Tables
Table 1 Summary of Sub-Slab and Soil Gas Vapor Samples

List of Figures
Figure 1 Site Location Map
Figure 2 Sub-Slab and Soil Gas Sample Location Map
List of Appendices

Appendix A Field QA/QC Sampling Data and Soil Gas Point Boring Log
Appendix B Laboratory Analytical Reports
Appendix C Risk Calculator Summary Pages

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Brownfields Vapor Assessment Report Building 2 – South Rite Aid Brownfields Site Charlotte, North Carolina H&H Job ATL-001
1.0 Introduction
On behalf of Camp Landowner, LP c/o Camp North End (CNE), Hart & Hickman, PC (H&H) has
prepared this Brownfields Vapor Assessment Report for the southern portion of Building 2 located
on the Rite Aid Brownfields property located at 1730 Statesville Avenue (also listed at 201 Camp
Road and 701 Keswick Avenue) in Charlotte, Mecklenburg County. The Brownfields vapor
assessment consisted of conducting sub-slab and soil gas sampling activities in the southern portion
of Building 2 (including an area proposed for residential development located south of Building 2),
in accordance with the Work Plan – Additional Vapor Assessment – Revision 2 (Work Plan), dated
November 17, 2020 approved by the NC Department of Environmental Quality (DEQ) Brownfields
Program. A summary of background information, recent sub-slab and soil gas sampling activities,
and the results of the Brownfields vapor assessment are summarized in the sections below.

The Rite Aid Brownfields Site is approximately 47.87 acres and is comprised of three contiguous
parcels of land (Mecklenburg PIN #s 07903102, 07903105, and 07903103). The Site entered into a
Brownfields Agreement with the DEQ Brownfields Program (Brownfields Project #20050-16-060)
in October 2017. Soil and groundwater contamination consisting primarily of volatile organic
compounds (VOCs including chlorinated solvents) and metals due to historical operations and
activities. The US Army Corps of Engineers (Corps), on behalf of the US Department of Defense
(DOD) is working with DEQ to address impacts release to historical operations conducted at the Site
including manufacturing of Model T Ford automobiles, a storage depot for the US Government, and
for production of Hercules missiles for the military.

The Prospective Developer (PD) is Camp Landowner, LP, and the current mixed-use development is
known as Camp North End. Building 2 (previously referred to as Building 1 during initial
Brownfields assessment activities, and Corps Building 5) is located in the eastern-central portion of

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the Rite Aid Brownfields Site as depicted on Figure 1. The current Building 2 designation for this
building is used throughout this report.

Building 2 is currently a vacant warehouse constructed with brick and concrete block walls on a raised
concrete foundation. During Site redevelopment activities, Keswick Avenue was recently extended
across N. Graham Street in a westerly direction and passes through the central portion of the Building
2 creating two separate structures connected by a roof. The two Building 2 structures are referred to
as Building 2-North and Building 2-South. Both Building 2–North and South are proposed to be
retrofitted for future commercial use. Building 2-South is proposed to contain commercial retail
spaces in the northern portion of the structure. The central portion of the Building 2-South structure
will be demolished and re-built with an open-air parking deck. The southern portion of Building 2-
South (including areas south of the existing building) will be redeveloped with a five-floor multi-
family residential apartment building with amenity spaces. In addition, a small commercial space is
proposed to be constructed on the ground floor in the north central portion of the parking deck and is
proposed to contain a slab-on-grade. Also, please note that although it appears the parking deck will
be physically connected to the residential apartment building and retail spaces, we do not anticipate
that there will be a connected HVAC system between these structures.

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2.0 Previous Assessment Activities
Background Information
Soil gas and indoor air samples were previously conducted in the northern and southern portions of
Building 2 during initial Brownfield vapor assessment activities conducted in 2016. Analytical results
from 2016 sampling activities indicated that trichloroethylene (TCE) and other VOCs were detected
above the NC DEQ non-residential Sub-Slab Soil Gas Screening Levels (SGSLs) in sub-slab samples
collected in the northern portion of Building 2 with TCE concentrations reported as high as 3,000,000
micrograms per cubic meter (µg/m3). TCE and other VOCs was also detected in the southern portion
of Building 2; however, at concentrations below the residential SGSL. Prior to and after construction
of after a temporary vapor wall barrier (comprised of plastic sheeting and drywall) installed between
the northern side and southern side of Building 2, indoor air sampling activities detected TCE in
indoor air within the northern portion of Building 2 at concentrations above DEQ residential and non-
residential Indoor Air Screening Levels (IASLs). TCE was not detected above the residential IASL
in samples collected from the southern portion of Building 2 – South after installation of the temporary
vapor wall barrier.

H&H recently prepared a Vapor Intrusion Mitigation Plan (VIMP) for a proposed Cupolex® VMS
to be installed above the existing concrete floor in Building 2 – North. During recent review of the
VIMP prepared for the VMS proposed in the northern portion of Building 2, DEQ requested
conducting additional vapor assessment activities in Building 2 – South. A summary of the recent
vapor assessment activities conducted to address the additional sub-slab and soil gas sampling
activities within Building 2–South and on a proposed residential development south of Building 2–
South are summarized below.

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3.0 Vapor Assessment Activities
3.1 Sub-slab Vapor Point Installation Activities
To further evaluate the potential for vapor intrusion associated with the proposed uses for Building 2-
South, H&H installed and sampled seven (7) permanent sub-slab vapor sampling points (B2-SSVP-
1 through B2-SSVP-7) in December 2020 and January 2021 at the following locations:

• B2-SSVP-1, B2-SSVP-2, and B-2-SSVP-6 were installed in the northern section of Building
2–South where the proposed commercial use spaces are located;
• B2-SSVP-3 was installed in the north-central section of Building 2-South where the new
commercial space within the parking garage structure is proposed to be located;
• B2-SSVP-4 and B2-SSVP-5 were installed in the southern section of Building 2–South
within the footprint of the proposed residential building, and
• B2-SSVP-7 was installed in the east-central section of Building 2-South within the footprint
of the proposed parking deck stairwell.
In addition to the sub-slab vapor points, one (1) permanent soil gas vapor point (B2-SGP-1) was
installed and sampled in a location south of Building 2-South and within the southwestern footprint
of the proposed residential building. Note, H&H also collected indoor air samples within Building
2-South during the recent assessment per the DEQ-approved Work Plan and the indoor samples were
placed on hold pending the sub-slab samples results, but which were not analyzed. The sub-slab
vapor and the soil gas sample locations are depicted on Figure 2.

The sub-slab vapor sample locations (B2-SSVP-1 through B2-SSVP-7) were installed as
permanent vapor points and were sampled in general accordance with the DEQ Division of Waste
Management (DWM) Vapor Intrusion Guidance. The sub-slab vapor points were installed by
utilizing a hammer drill and 1½-inch diameter drill bit to advance a pilot hole into the concrete
slab to a depth of approximately 1¾ inches below the surface. A drill guide was then placed in
the pilot hole, and a 5/8-inch diameter drill bit was utilized to advance the boring through the
concrete slab. Following concrete borehole advancement, loose concrete cuttings were removed
from the boring using a bottlebrush and high efficiency particulate air (HEPA) vacuum. A Cox-
Colvin Vapor Pin™ (vapor pin) assembly (brass sampling point and silicone sleeve) was seated in

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the borehole using an installation/extraction tool and hammer. The vapor pins were installed as
flush-mount sample points and secured with a stainless-steel cover that screws onto the sampling
point and is seated within the pilot hole annulus.

The soil gas monitoring point (SGP-1) was installed using hand auger methods to advance the boring
into the vadose zone to a depth of 5 ft below ground surface. The soil was logged for lithological
description and field screened for indication of potential impacts by observation for staining, and the
presence of organic vapors using a calibrated photoionization detector (PID). No notable staining or
odors were observed in the soil cuttings. A 6-inch stainless-steel screen point fitted with ¼-inch
diameter Teflon® tubing was then installed in the borehole to the maximum depth of the boring. Filter
sand was placed in the annulus space between the screen point and the borehole and the sand was
extended to approximately one ft above the bottom of the borehole. The sampling point was
completed by placing hydrated bentonite from the top of the filter sand to the ground surface and
installation of a lockable vapor point cap, protective steel cover, and a concrete pad set flush with
surrounding ground surface. A boring log for the soil gas point (B2-SGP-1) is located in Appendix
A.

Upon installation, the sample point was purged of a minimum of three times the volume of the
annular space plus the tubing volume using a syringe or air pump. In addition, the soil gas point
was sampled approximately one week after installation which allowed the sub-slab vapors to
stabilize prior to sampling.

3.2 Sub-Slab Vapor and Soil Gas Sampling Activities Prior to sampling the sub-slab and soil-gas vapor monitoring points, a leak check was conducted at
each location by constructing a shroud over the entire sampling train and flooding the air within the
shroud with helium gas. Using an air pump, a sample was collected from the gas in the shroud into a
Tedlar® bag and analyzed for helium concentrations using a helium gas detector. Vapor from the
monitoring points was purged and sampled outside of the shroud into a separate Tedlar® bag and
analyzed using the helium gas detector. The leak checks indicated that the helium concentrations
through the sample train were less than 10% of the concentration measured within the shroud
indicating a successful leak check for each sample.

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Following the successful field leak check, the sub-slab and soil-gas samples were collected into
approximate one-liter Summa canisters for laboratory analysis by connecting the Teflon® sample
tubing to an airflow regulator using a brass nut and ferrule assembly to create an airtight seal. The
airflow regulator was calibrated by the laboratory to allow the Summa canisters to fill slowly at a rate
not greater than 200 milliliters per minute. The vacuum pressure in each Summa canister upon
completion of the sampling event was between three and six inches of mercury (inHg).

In addition to the helium leak tests, shut-in leak tests were performed on each Summa canister and
sampling train prior to sampling to ensure no leaks were present through the regulator or canister
connections. Upon completion of sample collection, the air flow regulator was removed from the
Summa canister and the samples were submitted to Waypoint Analytical, LLC (Waypoint) under
standard chain of custody protocols for analysis of full-list VOCs by EPA Method TO-15. Upon
receipt of the samples, the laboratory recorded the final received vacuum pressure for each Summa
canister. The laboratory and field starting and ending vacuum concentrations are listed on the chain-
of-custody and in Table 1.
Indoor Air Samples
In accordance with the Work Plan, H&H collected two indoor air samples from the northern portion
of Building 2 – South that are proposed to contain enclosed retrofitted tenant spaces. The indoor air
samples were collected in these locations because the existing building concrete slab and exterior
walls are proposed to remain in-place. Additionally, an exterior background sample (BAS-1) was
collected. The indoor air and background samples were placed on-hold pending the results of the
sub-slab vapor samples. These samples were to be released for analysis of risk calculations indicated
that unacceptable carcinogenic or non-carcinogenic risk were present in the soil-gas and/or sub-slab
samples. As summarized in Section 4, unacceptable risks were not present in the sub-slab vapor and
soil-gas samples and thus the indoor air and background air samples were not released for analysis.
3.3 Quality Assurance/Quality Control

For field and laboratory quality assurance/quality control (QA/QC) purposes, H&H collected one
duplicate sub-slab sample and one duplicate indoor air sample to satisfy DEQ Brownfields minimum

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sample frequency of 1 duplicate per 20 samples per media and method. As noted above, the indoor
air samples were placed on hold pending results of the sub-slab vapor and soil gas samples and the
indoor air samples were not released for analysis. The duplicate sub-slab sample was analyzed for
the same compounds as the parent sample. In addition, H&H requested a Level II QA/QC data
package from the laboratory and the laboratory reported values to the laboratory-specified method
detection limits using J-flags.

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4.0 Vapor Assessment Results The vapor assessment results are summarized on Table 1. As anticipated, multiple low-level VOCs
were detected in the sub-slab and soil gas samples. Of the VOCs detected, only chloroform was
detected in the B2-SGP-1 soil gas sample at a concentration (70 µg/m³) above the DWM residential
and non-residential SGSL of 4.1 and 53 µg/m³. Benzyl chloride (5.1 µg/m³) and
bromodichloromethane (12 µg/m³) were also detected in the B2-SGP-1 soil gas sample at
concentrations above their respective DWM residential SGSLs of 1.9 and 2.5 µg/m³, but below their
respective DWM non-residential SGSLs of 25 and 33 µg/m³. Please note that B2-SGP-1 is located
south of Building 2-South in the footprint of the proposed residential building.

Naphthalene (6.4 µg/m³) was also detected at a concentration above the DWM residential SGSL of
2.8 µg/m³, but below the DWM non-residential SGSL of 36 µg/m³ in the B2-SSVP-7 sub-slab sample.
Please note that B2-SSVP-7 is located in the northern portion of Building 2-South in an area proposed
for commercial use. Additionally, TCE (5.2 µg/m³) was detected in only one sub-slab or soil gas
sample (SSVP-1 collected in the northern portion of Building 2-South and closest to the Keswick
Cut), but at a concentration below residential and non-residential SGSLs. None of the remaining low-
level VOCs detected in the sub-slab or soil gas samples exceeded residential or non-residential DWM
SGSLs.

To further assesses the sub-slab and soil gas results, H&H calculated risk for the detected VOC
concentrations. Specifically, H&H utilized the data collected from the B2-SSVP-1, B2-SSVP-2, B2-
SSVP-3, B2-SSVP-6, and B2-SSVP-7 to assess commercial risk due to their locations within
Building 2-South and the proposed garage structure. In addition, H&H utilized the data collected
from B2-SSVP-4, B2-SSVP-5, and B2-SGP-1 to assess residential risk due to their locations within
or near the footprint of the proposed residential structure. Please note, both commercial risk and
residential risk calculations are presented on Table 1 for each sample for comparative purposes, but
only the areas around locations B2-SSVP-4, B2-SSVP-5, and B2-SGP-1 are proposed to contain
future residential use buildings. In addition, for comparative purposes, a combined “worse-case”
commercial risk calculation was performed by using the highest detected concentration of each
constituent from all of the samples within the proposed commercial use areas, and a combined
“worse-case” residential risk calculation was performed using the constituent concentrations from all

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the samples within the proposed residential use areas. Risk calculator summary pages are included
as Appendix C.

The results of the cumulative risk calculations for the recent vapor assessment event indicate that all
of the calculated cumulative potential carcinogenic and non-carcinogenic risks for the soil gas
samples are within the acceptable risk range of 1 x10-4 to 1 x 10-6 and the calculated hazardous index
(HI) are less than 1 for both residential and non-residential use, including the combined worse-case
calculations. Therefore, it does not appear that the results of the vapor assessment activities identified
a significant risk exposure to future workers within Building 2-South or the parking garage, or to
future occupants within the proposed residential building.

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5.0 Summary and Recommendations
H&H has completed sub-slab vapor and soil gas point installation and sampling in Building 2 – South
at the Rite Aid Brownfields Property. A brief summary of the sampling results is provided below.

• H&H installed and sampled seven (7) permanent sub-slab vapor sampling points (B2-SSVP-
1 through B2-SSVP-7) and one permanent soil-gas point (B2-SGP-1) in December 2020 and
January 2021.
• Chloroform was detected in the B2-SGP-1 soil gas sample at a concentration (70 µg/m³)
above the DWM residential and non-residential SGSL of 4.1 and 53 µg/m³. Benzyl chloride
(5.1 µg/m³) and bromodichloromethane (12 µg/m³) were also detected in the B2-SGP-1 soil
gas sample at concentrations above their respective DWM residential SGSLs of 1.9 and 2.5
µg/m³, but below their respective DWM non-residential SGSLs of 25 and 33 µg/m³.
• Naphthalene (6.4 µg/m³) was also detected at a concentration above the DWM residential
SGSL of 2.8 µg/m³, but below the DWM non-residential SGSL of 36 µg/m³ in the B2-SSVP-
7 sub-slab sample.
• TCE (5.2 µg/m³) was detected in only one sub-slab or soil gas sample (SSVP-1 collected in
the northern portion of Building 2-South and closest to the Keswick Cut), but at a
concentration below residential and non-residential SGSLs.
• The results of the cumulative risk calculations for the recent vapor assessment event indicate
that all of the calculated cumulative potential carcinogenic and non-carcinogenic risks for the
soil gas samples are within the acceptable risk range of 1 x10-4 to 1 x 10-6 and the calculated
hazardous index (HI) are less than 1 for both residential and non-residential use, including the
combined worse-case calculations.
Based on the vapor assessment results of Building 2 – South and the proposed residential area to the
south of Building 2 – South, there does not appear to be a significant risk exposure to future workers
within Building 2-South or the parking garage, or to future occupants within the proposed residential
building.

Table 1Summary of Soil Gas and Sub-Slab Vapor SamplesBuilding 2 - SouthRite Aid Brownfields Site1730 Statesville AvenueCharlotte, North CarolinaH&H Job No. ATL-001Sampling MediaSoil GasSample LocationSouth of B2 WarehouseSample ObjectiveFuture Residential UseSample ID B2-SSVP-1 B2-SSVP-2 B2-SSVP-DUP B2-SSVP-3 B2-SSVP-4 B2-SSVP-5 B2-SSVP-6 B2-SSVP-7 B2-SGP-1Sample Date 12/22/20 12/20/20 12/20/20 12/18/20 12/18/20 12/18/20 1/14/21 1/14/21 12/18/20Units µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ µg/m³ Acetone 16 13 6.8 18 44 49 45 68 7.4 49 68 220,000 2,700,000Benzene<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.160.64 J<0.16 ND0.64 12 160Benzyl chloride<0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.205.1 5.1ND1.9 25Bromodichloromethane<0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.2612 12ND2.5 33Carbon disulfide 2.9 J<1.62.3 J<1.6 <1.6 <1.65.8 J<1.610 10 5.8 4,900 61,000Chloroform<0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.267070ND4.1 53Cyclohexane 1.9 J 2.2 J 2.2 J 3.0 J 4.0 3.2 J<0.87 <0.874.0 4.0 3.0 42,000 530,000Dibromochloromethane<0.48 <0.48 <0.48 <0.48 <0.48 <0.48 <0.48 <0.482.1 J 2.1NDNS NS1,4-Dichlorobenzene<0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.251.3 J 1.3ND8.5 110Dichlorodifluoromethane 3.2 3.5 3.6 3.3 3.6 3.6 3.5 3.2 4.1 4.1 3.6 700 8,8001,1-Dichloroethylene<0.41 <0.41 <0.41 <0.413.6<0.41 <0.41 <0.41 <0.413.6ND1,400 18,000trans-1,2-Dichloroethylene<0.48 <0.48 <0.48 <0.483.7<0.48 <0.48 <0.48 <0.483.7NDNE NE1,4-Dioxane 1.0 J<0.10 <0.100.86 J<0.10 <0.10 <0.10 <0.10 <0.10 ND1.0 19 250Hexane<0.25 <0.25 <0.25 <0.25 <0.25 <0.25 <0.252.5<0.25 ND2.5 4,900 61,000Isopropyl alcohol 3.2 J 2.0 J 2.0 J 3.2 J 3.0 J 2.7 J 6.9 11 4.2 J 4.2 11 1,400 18,000Methyl Butyl Ketone (2-Hexanone)<0.26 <0.26 <0.26 <0.26 <0.26 <0.264.6 4.5<0.26 ND4.6 210 2,600Methyl Ethyl Ketone (2-Butanone) 1.2 J 0.97 J 0.91 J 1.5 1.3 J 1.3 J 3.2 2.5 0.97 J 1.3 3.2 35,000 440,000Methyl Isobutyl Ketone<0.26 <0.26 <0.26 <0.26 <0.26 <0.264.8 4.7<0.26 ND4.8 21,000 260,000Methylene Chloride 1.2 J 5.3 10 9.7 11 12 3.9 8.7 10 12 10 3,400 53,000Naphthalene<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.06.4<1.0 ND6.42.8 36Styrene<0.15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.154.3 4.3ND7,000 88,000Tetrachloroethylene 2.3 J 3.7 3.7<0.443.1 J 3.1 J<0.44 <0.4428 28 3.7 280 3,500Tetrahydrofuran<0.21 <0.21 <0.21 <0.21 <0.21 <0.210.91 J 0.94 J 1.0 J 1.0 0.94 14,000 180,000Toluene<0.75 <0.75 <0.75 <0.750.83 J<0.751.0 J 2.1 1.8 J 1.8 2.1 35,000 440,0001,1,2-Trichloro-1,2,2-trifluoroethane<0.532.5 J 2.4 J<0.53 <0.53 <0.53 <0.53 <0.53 <0.53 ND2.5 35,000 440,000Trichloroethylene 5.2<0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 <0.27 ND5.2 14 180Trichlorofluoromethane<0.432.6 J 2.9<0.431.9 J 2.0 J 2.0 J<0.436.3 6.3 2.9 NE NE1,2,4-Trimethylbenzene 4.3 4.4 4.4 4.4 4.3 4.3<0.29 <0.295.1 5.1 4.4 420 5,300m,p-Xylenes<0.38 <0.38 <0.381.1 J<0.38 <0.382.0 J 2.4 J 1.8 J 1.8 2.4 700 8,800Cumulative Risks - ResidentCarcinogenic Risk 3.9E-07 4.9E-08 1.2E-08 1.2E-08 1.2E-09 2.4E-06 2.5E-05 2.5E-05 2.8E-06 -- --Non-Carcinogenic Hazard Index8.1E-02 5.2E-03 6.9E-03 6.4E-03 7.5E-03 7.0E-02 1.9E-01 1.9E-01 1.5E-01 -- --Cumulative Risks - Non-Resident WorkerCarcinogenic Risk 2.2E-08 3.6E-09 7.5E-10 7.6E-10 3.2E-11 1.8E-07 1.9E-06 1.9E-06 2.0E-07 -- --Non-Carcinogenic Hazard Index6.4E-03 4.1E-04 5.5E-04 5.0E-04 6.0E-04 5.6E-03 1.5E-02 1.5E-02 1.2E-02 -- --Canister Identification Number5918 5995 5896 5858 5896 5522Starting Vacuum, inHG (Lab / Field) NA / 27 30 / 28 28.5 / 26.5 30 / 28 29 /27 30 / 26.5Ending Vacuum, inHG (Lab / Field)4 / 5 4 / 5 4.5 / 5 5 / 5 5 / 5 4.5 / 5Notes:1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated July 2020.2) DEQ DWM Non-Residential Sub-slab and Exterior SGSLs dated July 2020.Areas of future residential use are represented by samples (B2-)SSVP-4, SSVP-5, and SGP-1. For purposes of risk calculation, the highest concentration for each constituent detected was used.Areas of future commercial use are represented by samples (B2-)SSVP-1, SSVP-2, SSVP-3, SSVP-6, and SSVP-7. For purposes of risk calculation, the highest concentration from each constituent detected was used.Duplicate sample (B2-SSVP-DUP) collected with parent sample B2-SSVP-2. For purposes of risk calculation, the highest concentration is used.Concentrations are reported in micrograms per cubic meter (µg/m3). Only constituents detected in at least one sample are shown above; refer to the laboratory reportNote, canister vacuums may be measured with different gauges in the laboratory as compared to the field gauge.Bold indicates concentration exceeds Residential Sub-slab and Exterior SGSL.Bold and Underlined indicates concentration exceeds Non-Residential Sub-slab and Exterior SGSL.J = Compound detected above laboratory method detection limit, but below laboratory reporting limit; and therefore reported value is an estimated value.NE = Not Established; < = Compound detected below the laboratory method detection limit; NA = not available, inHG = inches of mercuryB2-SSVP-4 & 5, B2-SGP-1B2-SSVP-1, 2, 3, 6, & 78.7E-105.3E-04594130 / 27.5 4 / 5DWM Non-Residential Sub-Slab and Exterior Soil Gas Screening Level(2)Building 2-South WarehouseSub-Slab VaporFuture Commercial Use6.7E-031.3E-08DWM Residential Sub-Slab and Exterior Soil Gas Screening Level(1)Future Residential Use Future Commercial UseCombined Worse-CaseFuture Residential UseFuture Commercial UseS:\AAA-Master Projects\ATCO LLC - ATC\ATL-Vapor Building 2\Vapor Assessment Report\Table 2 - SubSlab and Soil GasTable 1Hart & Hickman
TITLE
PROJECT
SITE LOCATION MAP
BUILDING 2 - SOUTH
1730 STATESVILLE AVENUE
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE NO:
11-13-20 0
1ATL-001
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE EAST, NC 1967
REVISED/INSPECTED 1988
AND
DERITA, NC 1993
SITE
FORMER
OFFICES
STATESVILLE AVENUECAMP ROADKE
S
W
I
C
K

A
V
E
N
U
E
PROPOSED OPEN-AIR
COVERED PORCH
MV GRAHAM PROPERTY
FORMERLY
KNOWN AS
BUILDING #3
BUILDING 2 - SOUTH
(FORMER BUILDING 1)
PROPOSED RETROFITTED
COMMERCIAL / RETAIL SPACEPROPOSED NEW
PARKING DECK
PROPOSED NEW
COMMERCIAL SPACE
PROPOSED NEW RESIDENTIAL
AND AMENITY SPACE
KESWICK AVENUE
EXTENSION (KESWICK CUT)
BUILDING 2 - NORTH
(FORMER BUILDING 1)
B2-SSVP-1
B2-SSVP-6
B2-SSVP-3
B2-SSVP-4B2-SSVP-5
B2-SGP-1
B2-SSVP-2
B2-SSVP-7
JOB NO. ATL-001
REVISION NO. 2DATE: 3-1-21
FIGURE NO. 2
CAMP NORTH END / RITE AID FACILITYBROWNFIELDS PROJECT NO. 20050-16-0601776 STATESVILLE AVENUECHARLOTTE, NORTH CAROLINA
SUB-SLAB & SOIL GAS SAMPLE LOCATION MAPLEGEND
SITE PROPERTY BOUNDARY
TEMPORARY WALL SEAL LOCATION(INSTALLED FOR THE SEPTEMBER 2016INDOOR AIR SAMPLING EVENT)
PROPOSED AREA FOR VAPOR INTUSION
MITIGATION SYSTEM(APPROXIMATELY 101,000 SQ FT)
PROPOSED KESWICK EXTENSION (KESWICKCUT) OPEN-AIR STREET
NOTES:
1. VAPOR INTRUSION MITIGATION SYSTEM (VIMS) IS PROPOSED FORBUILDING 2 - NORTH.
2. REFER TO BUILDING PLANS - A0.11 - LEASING PLAN B - PROPOSEDFOR DETAILS REGARDING THE PROPOSED RESIDENTIAL ANDCOMMERCIAL SPACE LAYOUT AND FOR THE SAMPLE LOCATIONS INRELATION TO THE PROPOSED BUILDING.
SUB-SLAB VAPOR SAMPLE
SOIL-GAS POINT AND SAMPLE
B2-SSVP-4
B2-SGP-1
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 GeologyNORTH GRAHAM STREETS:\AAA-Master Projects\ATCO LLC - ATC\ATL-Vapor Building 2\Revision 2\Figures\Sample Location Map_R1.dwg, FIG 3, 3/1/2021 1:03:40 PM, SVincent

Appendix A Field QA/QC Sampling Data and Soil Gas Point Boring Log
Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.: ATL-001 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:B2‐SGP‐1C:5769R:6555YesSG perm asphalt -- 4.5 - 512/18/2014:0045 air pump 2 26.9 0 YesS: B2‐SSVP‐2C:5941R:13115Yes SS perm concrete 6 in --12/18/209:4542 air pump 2 21.7 0 YesS: B2‐SSVP‐3C: 5995R: 13125Yes SS perm concrete 6 in --12/18/2015:5550 air pump 2 31.8 0 YesS: B2‐SSVP‐4C: 5896R: 6559Yes SS perm concrete 6 in --12/18/2015:0850 air pump 2 30.1 25 ppm YesS: B2‐SSVP‐5C: 5858R: 6565Yes SS perm concrete 6 in --12/18/2014:4250 air pump 2 42.1 0 YesS: B2‐SSVP‐1C: 5918R: 13125Yes SS perm concrete 6 in --12/22/207:5047 air pump 2 25.1 0 YesS: B2‐SSVP‐6C: 5896R: 6558Yes SS perm concrete 6 in --01/14/2115:1652 air pump 2 28.2 0 YesS: B2‐SSVP‐7C: 5522R: 6552Yes SS perm concrete 6 in --01/14/2115:4452 air pump 2 30.6 0 YesS= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporarySampler(s): Sean HorganWeather: All sampling events - no preciptation,, 40s to 50s F, sunny/partly cloudyNotes: See Figure 2 for sample locations. Leak test conducted on entire sampling train.B2-SSVP-1 through B2-SSVP-7 were installed with vapor pinsHelium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionNote: Leak Test RequirementsPer 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:\AAA‐Master Projects\ATCO LLC ‐ ATC\ATL‐Vapor Building 2\Vapor Assessment Report\Sub‐slab & Soil Gas QA_QC Field FormSub‐Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PC
NOTES: Hole precleared using hand auger.
generated using GroundLogs.online
Client:
Project:
Address:
ATCO, LLC
ATL-001
1776 Statesville Avenue, Charlotte,NC
WELL LOG
Well No.
Page:
B2-SGP-1
1 of 1
Drilling Start Date:
Drilling End Date:
Drilling Company:
Drilling Method:
Drilling Equipment:
Driller:
Logged By:
12/10/2021 10:30
12/10/2021 11:50
Hart & Hickman
Other
Hand Auger
Sean Horgan
Sean Horgan
Boring Depth (ft):
Boring Diameter (in):
Sampling Method(s):
DTW During Drilling (ft):
DTW After Drilling (ft):
Top of Casing Elev. (ft):
Location (X,Y):
5.0
2.5
Grab
Well Depth (ft):
Well Diameter (in):
Screen Slot (in):
Riser Material:
Screen Material:
Seal Material(s):
Filter Type:
5.0
0.1
Teflon tubing
6" Vapor Screen
Bent. Powder
Sand Pack
DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT
Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION
MEASURE
PID (ppm)Lab SampleDEPTH (ft)0
5
10
GR
GR
GR
GR
GR
1.00
1.00
1.00
1.00
1.00
(0') Asphalt
(0.5') Poorly graded GRAVEL with sand (GP); some coarse sand, dense, dry, dark
yellowish-brown
(1') Lean CLAY (CL); some silt, medium plasticity, very stiff, moist, reddish
(3.5') SILT (ML); some clay, stiff, moist, reddish
(4') SILT (ML); few clay, stiff, moist, yellowish-red
(5') Boring terminated
3.8
7.7
13.0
14.7
12.7
0
5
10
--
--
--
--
--
NOTES:
BORING AND WELL LOG LEGEND
LITHOLOGYWATER LEVELWELL/BORINGCOMPLETIONSample TypeDESCRIPTION

GR
EN
SS
SH
CO
DP
ID
ASPHALT
CONCRETE
BEDROCK
IGNEOUS Rock
METAMORPHIC Rock
SEDIMENTARY Rock
Well-graded GRAVEL (GW)
Poorly graded GRAVEL (GP)
Silty GRAVEL (GM)
Clayey GRAVEL (GC)
Well-graded GRAVEL with silt (GW-GM)
Poorly graded GRAVEL with silt (GP-GM)
Well-graded GRAVEL with clay (GW-GC)
Poorly graded GRAVEL with clay (GP-GC)
Well-graded SAND (SW)
Poorly graded SAND (SP)
Silty SAND (SM)
Clayey SAND (SC)
Well-graded SAND with silt (SW-SM)
Poorly graded SAND with silt (SP-SM)
Well-graded SAND with clay (SW-SC)
Poorly graded SAND with clay (SP-SC)
SILT (ML)
Lean CLAY (CL)
Organic SOIL (OL)
Elastic SILT (MH)
Fat CLAY (CH)
Organic SOIL (OH)
Organic SOIL (OL/OH)
PEAT (PT)
Volume Descriptors:
Trace = <5%
Few = 5-10%
Little = 15-25%
Some = 30-45%
Mostly = >=50%
Water Level During Drilling
Water Level at End of Drilling/in Completed Well
Cap
Riser
Screen
End Plug
Annular Seal (Bentonite-Cement Grout, Bentonite Slurry/Chips/Pellets/Powder, Other)
Sanitary Seal (Bentonite Slurry/Chips/Pellets/Powder, Other)
Filter Pack (Sand, Gravel, Other)
Backfill
Grab
Encore
Split Spoon
Shelby Tube
Core Barrel
Direct Push
Lab Sample and ID

Appendix B Laboratory Analytical Reports
This data package contains the analytical results for the project identified above and includes a Case Narrative, Sample
Results and Chain of Custody. Unless otherwise noted, all samples were received in acceptable condition and processed
according to the referenced methods.
Data qualifiers are flagged individually on each sample. A key reference for the data qualifiers appears at the end of this case
narrative.
NC Certification No. 402
NC Drinking Water Cert No. 37735
SC Certification No. 99012
Case Narrative
12/31/20 11:14
Hart & Hickman (Charlotte)
Matt Ingalls
2923 South Tryon St. Ste 100
Charlotte, NC 28203
Project: ATL-001 Former Rite Aid
Lab Submittal Date: 12/22/2020
Work Order: 0120370
Please call if you have any questions relating to this analytical report.
Respectfully,
WAYPOINT ANALYTICAL
Senior Project Manager
Angela D. Overcash
Data Qualifiers Key Reference:
J Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Method Detection LimitMDL
Below Reporting LimitBRL
Relative Percent DifferenceRPD
*Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and
reporting limit indicated with a J.
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 1 of 24
Sample Receipt Summary
12/31/2020
Work Order: 0120370
Client Sample ID MatrixLab Sample ID Date/Time Sampled Date/Time Received
0120370-01 12/18/20 15:57B2-SSVP-3 12/22/20 14:20Air
0120370-02 12/20/20 9:45B2-SSVP-2 12/22/20 14:20Air
0120370-03 12/18/20 14:01B2-SGP-1 12/22/20 14:20Air
0120370-04 12/18/20 14:44B2-SSVP-5 12/22/20 14:20Air
0120370-05 12/18/20 15:09B2-SSVP-4 12/22/20 14:20Air
0120370-06 12/20/20 0:00B2-SSVP-DUP 12/22/20 14:20Air
0120370-07 12/22/20 7:54B2-SSVP-1 12/22/20 14:20Air
Samples were received in good condition at 6.0 degrees C unless otherwise noted.
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 2 of 24
Client ID ResultParameterMethod UnitsWaypoint ID
Work Order: 0120370
12/31/2020
Summary of Detections
4.4 ug/m‡ Air0120370-01 B2-SSVP-3 1,2,4-Trimethylbenzene TO-15
0.86 J ug/m‡ Air0120370-01 B2-SSVP-3 1,4-Dioxane TO-15
18 ug/m‡ Air0120370-01 B2-SSVP-3 Acetone TO-15
3.0 J ug/m‡ Air0120370-01 B2-SSVP-3 Cyclohexane TO-15
3.3 ug/m‡ Air0120370-01 B2-SSVP-3 Dichlorodifluoromethane TO-15
3.2 J ug/m‡ Air0120370-01 B2-SSVP-3 Isopropyl alcohol TO-15
1.1 J ug/m‡ Air0120370-01 B2-SSVP-3 m,p-Xylenes TO-15
1.5 ug/m‡ Air0120370-01 B2-SSVP-3 Methyl Ethyl Ketone (2-Butanone)TO-15
9.7 ug/m‡ Air0120370-01 B2-SSVP-3 Methylene Chloride TO-15
2.5 J ug/m‡ Air0120370-02 B2-SSVP-2 1,1,2-Trichloro-1,2,2-trifluoroethane TO-15
4.4 ug/m‡ Air0120370-02 B2-SSVP-2 1,2,4-Trimethylbenzene TO-15
13 ug/m‡ Air0120370-02 B2-SSVP-2 Acetone TO-15
2.2 J ug/m‡ Air0120370-02 B2-SSVP-2 Cyclohexane TO-15
3.5 ug/m‡ Air0120370-02 B2-SSVP-2 Dichlorodifluoromethane TO-15
2.0 J ug/m‡ Air0120370-02 B2-SSVP-2 Isopropyl alcohol TO-15
0.97 J ug/m‡ Air0120370-02 B2-SSVP-2 Methyl Ethyl Ketone (2-Butanone)TO-15
5.3 ug/m‡ Air0120370-02 B2-SSVP-2 Methylene Chloride TO-15
3.7 ug/m‡ Air0120370-02 B2-SSVP-2 Tetrachloroethylene TO-15
2.6 J ug/m‡ Air0120370-02 B2-SSVP-2 Trichlorofluoromethane TO-15
5.1 ug/m‡ Air0120370-03 B2-SGP-1 1,2,4-Trimethylbenzene TO-15
1.3 J ug/m‡ Air0120370-03 B2-SGP-1 1,4-Dichlorobenzene TO-15
7.4 ug/m‡ Air0120370-03 B2-SGP-1 Acetone TO-15
5.1 ug/m‡ Air0120370-03 B2-SGP-1 Benzyl chloride TO-15
12 ug/m‡ Air0120370-03 B2-SGP-1 Bromodichloromethane TO-15
10 ug/m‡ Air0120370-03 B2-SGP-1 Carbon disulfide TO-15
70 ug/m‡ Air0120370-03 B2-SGP-1 Chloroform TO-15
4.0 ug/m‡ Air0120370-03 B2-SGP-1 Cyclohexane TO-15
2.1 J ug/m‡ Air0120370-03 B2-SGP-1 Dibromochloromethane TO-15
4.1 ug/m‡ Air0120370-03 B2-SGP-1 Dichlorodifluoromethane TO-15
4.2 J ug/m‡ Air0120370-03 B2-SGP-1 Isopropyl alcohol TO-15
1.8 J ug/m‡ Air0120370-03 B2-SGP-1 m,p-Xylenes TO-15
0.97 J ug/m‡ Air0120370-03 B2-SGP-1 Methyl Ethyl Ketone (2-Butanone)TO-15
10 ug/m‡ Air0120370-03 B2-SGP-1 Methylene Chloride TO-15
4.3 ug/m‡ Air0120370-03 B2-SGP-1 Styrene TO-15
28 ug/m‡ Air0120370-03 B2-SGP-1 Tetrachloroethylene TO-15
1.0 J ug/m‡ Air0120370-03 B2-SGP-1 Tetrahydrofuran TO-15
1.8 J ug/m‡ Air0120370-03 B2-SGP-1 Toluene TO-15
6.3 ug/m‡ Air0120370-03 B2-SGP-1 Trichlorofluoromethane TO-15
4.3 ug/m‡ Air0120370-04 B2-SSVP-5 1,2,4-Trimethylbenzene TO-15
49 ug/m‡ Air0120370-04 B2-SSVP-5 Acetone TO-15
3.2 J ug/m‡ Air0120370-04 B2-SSVP-5 Cyclohexane TO-15
3.6 ug/m‡ Air0120370-04 B2-SSVP-5 Dichlorodifluoromethane TO-15
2.7 J ug/m‡ Air0120370-04 B2-SSVP-5 Isopropyl alcohol TO-15
1.3 J ug/m‡ Air0120370-04 B2-SSVP-5 Methyl Ethyl Ketone (2-Butanone)TO-15
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 3 of 24
Client ID ResultParameterMethod UnitsWaypoint ID
Work Order: 0120370
12/31/2020
Summary of Detections
12 ug/m‡ Air0120370-04 B2-SSVP-5 Methylene Chloride TO-15
3.1 J ug/m‡ Air0120370-04 B2-SSVP-5 Tetrachloroethylene TO-15
2.0 J ug/m‡ Air0120370-04 B2-SSVP-5 Trichlorofluoromethane TO-15
3.6 ug/m‡ Air0120370-05 B2-SSVP-4 1,1-Dichloroethylene TO-15
4.3 ug/m‡ Air0120370-05 B2-SSVP-4 1,2,4-Trimethylbenzene TO-15
44 ug/m‡ Air0120370-05 B2-SSVP-4 Acetone TO-15
4.0 ug/m‡ Air0120370-05 B2-SSVP-4 Cyclohexane TO-15
3.6 ug/m‡ Air0120370-05 B2-SSVP-4 Dichlorodifluoromethane TO-15
3.0 J ug/m‡ Air0120370-05 B2-SSVP-4 Isopropyl alcohol TO-15
1.3 J ug/m‡ Air0120370-05 B2-SSVP-4 Methyl Ethyl Ketone (2-Butanone)TO-15
11 ug/m‡ Air0120370-05 B2-SSVP-4 Methylene Chloride TO-15
3.1 J ug/m‡ Air0120370-05 B2-SSVP-4 Tetrachloroethylene TO-15
0.83 J ug/m‡ Air0120370-05 B2-SSVP-4 Toluene TO-15
3.7 ug/m‡ Air0120370-05 B2-SSVP-4 trans-1,2-Dichloroethylene TO-15
1.9 J ug/m‡ Air0120370-05 B2-SSVP-4 Trichlorofluoromethane TO-15
2.4 J ug/m‡ Air0120370-06 B2-SSVP-DUP 1,1,2-Trichloro-1,2,2-trifluoroethane TO-15
4.4 ug/m‡ Air0120370-06 B2-SSVP-DUP 1,2,4-Trimethylbenzene TO-15
6.8 ug/m‡ Air0120370-06 B2-SSVP-DUP Acetone TO-15
2.3 J ug/m‡ Air0120370-06 B2-SSVP-DUP Carbon disulfide TO-15
2.2 J ug/m‡ Air0120370-06 B2-SSVP-DUP Cyclohexane TO-15
3.6 ug/m‡ Air0120370-06 B2-SSVP-DUP Dichlorodifluoromethane TO-15
2.0 J ug/m‡ Air0120370-06 B2-SSVP-DUP Isopropyl alcohol TO-15
0.91 J ug/m‡ Air0120370-06 B2-SSVP-DUP Methyl Ethyl Ketone (2-Butanone)TO-15
10 ug/m‡ Air0120370-06 B2-SSVP-DUP Methylene Chloride TO-15
3.7 ug/m‡ Air0120370-06 B2-SSVP-DUP Tetrachloroethylene TO-15
2.9 ug/m‡ Air0120370-06 B2-SSVP-DUP Trichlorofluoromethane TO-15
4.3 ug/m‡ Air0120370-07 B2-SSVP-1 1,2,4-Trimethylbenzene TO-15
1.0 J ug/m‡ Air0120370-07 B2-SSVP-1 1,4-Dioxane TO-15
16 ug/m‡ Air0120370-07 B2-SSVP-1 Acetone TO-15
2.9 J ug/m‡ Air0120370-07 B2-SSVP-1 Carbon disulfide TO-15
1.9 J ug/m‡ Air0120370-07 B2-SSVP-1 Cyclohexane TO-15
3.2 ug/m‡ Air0120370-07 B2-SSVP-1 Dichlorodifluoromethane TO-15
3.2 J ug/m‡ Air0120370-07 B2-SSVP-1 Isopropyl alcohol TO-15
1.2 J ug/m‡ Air0120370-07 B2-SSVP-1 Methyl Ethyl Ketone (2-Butanone)TO-15
1.2 J ug/m‡ Air0120370-07 B2-SSVP-1 Methylene Chloride TO-15
2.3 J ug/m‡ Air0120370-07 B2-SSVP-1 Tetrachloroethylene TO-15
5.2 ug/m‡ Air0120370-07 B2-SSVP-1 Trichloroethylene TO-15
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 4 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-3
Sample ID: 0120370-01
Work Order: 0120370
Time Collected: 12/18/20 15:57
Time Submitted: 12/22/20 14:20
Volatile Organic Compounds by GC/MS
TO-15 P0L050712.7 12/28/20 13:29 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P0L050713.4 12/28/20 13:29 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P0L050713.8 12/28/20 13:29 CBMug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane BDL
TO-15 P0L050712.7 12/28/20 13:29 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P0L050713.7 12/28/20 13:29 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P0L050712.5 12/28/20 13:29 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene 4.4
TO-15 P0L050713.8 12/28/20 13:29 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P0L050713.0 12/28/20 13:29 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P0L050712.3 12/28/20 13:29 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P0L050713.5 12/28/20 13:29 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P0L050712.5 12/28/20 13:29 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P0L050711.1 12/28/20 13:29 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P0L050713.0 12/28/20 13:29 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P0L050713.0 12/28/20 13:29 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P0L050711.8 12/28/20 13:29 CBMJug/m‡ Air 0.101,4-Dioxane 0.86
TO-15 P0L050712.5 12/28/20 13:29 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P0L050712.4 12/28/20 13:29 CBMug/m‡ Air 0.59Acetone18
TO-15 P0L050711.6 12/28/20 13:29 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P0L050712.6 12/28/20 13:29 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P0L050713.4 12/28/20 13:29 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P0L050715.2 12/28/20 13:29 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P0L050711.9 12/28/20 13:29 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P0L050716.2 12/28/20 13:29 CBMug/m‡ Air 1.6Carbon disulfide BDL
TO-15 P0L050713.1 12/28/20 13:29 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P0L050712.3 12/28/20 13:29 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P0L050711.3 12/28/20 13:29 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P0L050712.4 12/28/20 13:29 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P0L050711.0 12/28/20 13:29 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 13:29 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P0L050713.4 12/28/20 13:29 CBMJug/m‡ Air 0.87Cyclohexane3.0
TO-15 P0L050714.3 12/28/20 13:29 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P0L050712.5 12/28/20 13:29 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.3
TO-15 P0L050711.8 12/28/20 13:29 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P0L050712.2 12/28/20 13:29 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P0L050715.3 12/28/20 13:29 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P0L050711.8 12/28/20 13:29 CBMug/m‡ Air 0.25HexaneBDL
TO-15 P0L050714.9 12/28/20 13:29 CBMJug/m‡ Air 0.17Isopropyl alcohol 3.2
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 5 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-3
Sample ID: 0120370-01
Work Order: 0120370
Time Collected: 12/18/20 15:57
Time Submitted: 12/22/20 14:20
TO-15 P0L050715.6 12/28/20 13:29 CBMJug/m‡ Air 0.38m,p-Xylenes 1.1
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)BDL
TO-15 P0L050711.5 12/28/20 13:29 CBMug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)1.5
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone BDL
TO-15 P0L050711.7 12/28/20 13:29 CBMug/m‡ Air 0.39Methylene Chloride 9.7
TO-15 P0L050711.8 12/28/20 13:29 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P0L050712.6 12/28/20 13:29 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P0L050712.2 12/28/20 13:29 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P0L050710.86 12/28/20 13:29 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P0L050712.1 12/28/20 13:29 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P0L050713.4 12/28/20 13:29 CBMug/m‡ Air 0.44TetrachloroethyleneBDL
TO-15 P0L050711.5 12/28/20 13:29 CBMug/m‡ Air 0.21TetrahydrofuranBDL
TO-15 P0L050711.9 12/28/20 13:29 CBMug/m‡ Air 0.75TolueneBDL
TO-15 P0L050712.0 12/28/20 13:29 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 13:29 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P0L050712.7 12/28/20 13:29 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P0L050712.8 12/28/20 13:29 CBMug/m‡ Air 0.43TrichlorofluoromethaneBDL
TO-15 P0L050711.8 12/28/20 13:29 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P0L050711.3 12/28/20 13:29 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13088 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 6 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-2
Sample ID: 0120370-02
Work Order: 0120370
Time Collected: 12/20/20 09:45
Time Submitted: 12/22/20 14:20
Volatile Organic Compounds by GC/MS
TO-15 P0L050712.7 12/28/20 14:21 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P0L050713.4 12/28/20 14:21 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P0L050713.8 12/28/20 14:21 CBMJug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane 2.5
TO-15 P0L050712.7 12/28/20 14:21 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P0L050713.7 12/28/20 14:21 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P0L050712.5 12/28/20 14:21 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene 4.4
TO-15 P0L050713.8 12/28/20 14:21 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P0L050713.0 12/28/20 14:21 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P0L050712.3 12/28/20 14:21 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P0L050713.5 12/28/20 14:21 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P0L050712.5 12/28/20 14:21 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P0L050711.1 12/28/20 14:21 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P0L050713.0 12/28/20 14:21 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P0L050713.0 12/28/20 14:21 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P0L050711.8 12/28/20 14:21 CBMug/m‡ Air 0.101,4-Dioxane BDL
TO-15 P0L050712.5 12/28/20 14:21 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P0L050712.4 12/28/20 14:21 CBMug/m‡ Air 0.59Acetone13
TO-15 P0L050711.6 12/28/20 14:21 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P0L050712.6 12/28/20 14:21 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P0L050713.4 12/28/20 14:21 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P0L050715.2 12/28/20 14:21 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P0L050711.9 12/28/20 14:21 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P0L050716.2 12/28/20 14:21 CBMug/m‡ Air 1.6Carbon disulfide BDL
TO-15 P0L050713.1 12/28/20 14:21 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P0L050712.3 12/28/20 14:21 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P0L050711.3 12/28/20 14:21 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P0L050712.4 12/28/20 14:21 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P0L050711.0 12/28/20 14:21 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 14:21 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P0L050713.4 12/28/20 14:21 CBMJug/m‡ Air 0.87Cyclohexane2.2
TO-15 P0L050714.3 12/28/20 14:21 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P0L050712.5 12/28/20 14:21 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.5
TO-15 P0L050711.8 12/28/20 14:21 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P0L050712.2 12/28/20 14:21 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P0L050715.3 12/28/20 14:21 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P0L050711.8 12/28/20 14:21 CBMug/m‡ Air 0.25HexaneBDL
TO-15 P0L050714.9 12/28/20 14:21 CBMJug/m‡ Air 0.17Isopropyl alcohol 2.0
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 7 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-2
Sample ID: 0120370-02
Work Order: 0120370
Time Collected: 12/20/20 09:45
Time Submitted: 12/22/20 14:20
TO-15 P0L050715.6 12/28/20 14:21 CBMug/m‡ Air 0.38m,p-Xylenes BDL
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)BDL
TO-15 P0L050711.5 12/28/20 14:21 CBMJug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)0.97
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone BDL
TO-15 P0L050711.7 12/28/20 14:21 CBMug/m‡ Air 0.39Methylene Chloride 5.3
TO-15 P0L050711.8 12/28/20 14:21 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P0L050712.6 12/28/20 14:21 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P0L050712.2 12/28/20 14:21 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P0L050710.86 12/28/20 14:21 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P0L050712.1 12/28/20 14:21 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P0L050713.4 12/28/20 14:21 CBMug/m‡ Air 0.44Tetrachloroethylene3.7
TO-15 P0L050711.5 12/28/20 14:21 CBMug/m‡ Air 0.21TetrahydrofuranBDL
TO-15 P0L050711.9 12/28/20 14:21 CBMug/m‡ Air 0.75TolueneBDL
TO-15 P0L050712.0 12/28/20 14:21 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 14:21 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P0L050712.7 12/28/20 14:21 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P0L050712.8 12/28/20 14:21 CBMJug/m‡ Air 0.43Trichlorofluoromethane2.6
TO-15 P0L050711.8 12/28/20 14:21 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P0L050711.3 12/28/20 14:21 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13089 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 8 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SGP-1
Sample ID: 0120370-03
Work Order: 0120370
Time Collected: 12/18/20 14:01
Time Submitted: 12/22/20 14:20
Volatile Organic Compounds by GC/MS
TO-15 P0L050712.7 12/28/20 15:13 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P0L050713.4 12/28/20 15:13 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P0L050713.8 12/28/20 15:13 CBMug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane BDL
TO-15 P0L050712.7 12/28/20 15:13 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P0L050713.7 12/28/20 15:13 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P0L050712.5 12/28/20 15:13 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene 5.1
TO-15 P0L050713.8 12/28/20 15:13 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P0L050713.0 12/28/20 15:13 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P0L050712.3 12/28/20 15:13 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P0L050713.5 12/28/20 15:13 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P0L050712.5 12/28/20 15:13 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P0L050711.1 12/28/20 15:13 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P0L050713.0 12/28/20 15:13 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P0L050713.0 12/28/20 15:13 CBMJug/m‡ Air 0.251,4-Dichlorobenzene 1.3
TO-15 P0L050711.8 12/28/20 15:13 CBMug/m‡ Air 0.101,4-Dioxane BDL
TO-15 P0L050712.5 12/28/20 15:13 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P0L050712.4 12/28/20 15:13 CBMug/m‡ Air 0.59Acetone7.4
TO-15 P0L050711.6 12/28/20 15:13 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P0L050712.6 12/28/20 15:13 CBMug/m‡ Air 0.20Benzyl chloride 5.1
TO-15 P0L050713.4 12/28/20 15:13 CBMug/m‡ Air 0.26Bromodichloromethane12
TO-15 P0L050715.2 12/28/20 15:13 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P0L050711.9 12/28/20 15:13 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P0L050716.2 12/28/20 15:13 CBMug/m‡ Air 1.6Carbon disulfide 10
TO-15 P0L050713.1 12/28/20 15:13 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P0L050712.3 12/28/20 15:13 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P0L050711.3 12/28/20 15:13 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P0L050712.4 12/28/20 15:13 CBMug/m‡ Air 0.26Chloroform70
TO-15 P0L050711.0 12/28/20 15:13 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 15:13 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P0L050713.4 12/28/20 15:13 CBMug/m‡ Air 0.87Cyclohexane4.0
TO-15 P0L050714.3 12/28/20 15:13 CBMJug/m‡ Air 0.48Dibromochloromethane2.1
TO-15 P0L050712.5 12/28/20 15:13 CBMug/m‡ Air 0.41Dichlorodifluoromethane4.1
TO-15 P0L050711.8 12/28/20 15:13 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P0L050712.2 12/28/20 15:13 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P0L050715.3 12/28/20 15:13 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P0L050711.8 12/28/20 15:13 CBMug/m‡ Air 0.25HexaneBDL
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 9 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SGP-1
Sample ID: 0120370-03
Work Order: 0120370
Time Collected: 12/18/20 14:01
Time Submitted: 12/22/20 14:20
TO-15 P0L050714.9 12/28/20 15:13 CBMJug/m‡ Air 0.17Isopropyl alcohol 4.2
TO-15 P0L050715.6 12/28/20 15:13 CBMJug/m‡ Air 0.38m,p-Xylenes 1.8
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)BDL
TO-15 P0L050711.5 12/28/20 15:13 CBMJug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)0.97
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone BDL
TO-15 P0L050711.7 12/28/20 15:13 CBMug/m‡ Air 0.39Methylene Chloride 10
TO-15 P0L050711.8 12/28/20 15:13 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P0L050712.6 12/28/20 15:13 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P0L050712.2 12/28/20 15:13 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P0L050710.86 12/28/20 15:13 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P0L050712.1 12/28/20 15:13 CBMug/m‡ Air 0.15Styrene4.3
TO-15 P0L050713.4 12/28/20 15:13 CBMug/m‡ Air 0.44Tetrachloroethylene28
TO-15 P0L050711.5 12/28/20 15:13 CBMJug/m‡ Air 0.21Tetrahydrofuran1.0
TO-15 P0L050711.9 12/28/20 15:13 CBMJug/m‡ Air 0.75Toluene1.8
TO-15 P0L050712.0 12/28/20 15:13 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 15:13 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P0L050712.7 12/28/20 15:13 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P0L050712.8 12/28/20 15:13 CBMug/m‡ Air 0.43Trichlorofluoromethane6.3
TO-15 P0L050711.8 12/28/20 15:13 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P0L050711.3 12/28/20 15:13 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13090 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 10 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-5
Sample ID: 0120370-04
Work Order: 0120370
Time Collected: 12/18/20 14:44
Time Submitted: 12/22/20 14:20
Volatile Organic Compounds by GC/MS
TO-15 P0L050712.7 12/28/20 16:06 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P0L050713.4 12/28/20 16:06 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P0L050713.8 12/28/20 16:06 CBMug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane BDL
TO-15 P0L050712.7 12/28/20 16:06 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P0L050713.7 12/28/20 16:06 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P0L050712.5 12/28/20 16:06 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene 4.3
TO-15 P0L050713.8 12/28/20 16:06 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P0L050713.0 12/28/20 16:06 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P0L050712.3 12/28/20 16:06 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P0L050713.5 12/28/20 16:06 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P0L050712.5 12/28/20 16:06 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P0L050711.1 12/28/20 16:06 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P0L050713.0 12/28/20 16:06 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P0L050713.0 12/28/20 16:06 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P0L050711.8 12/28/20 16:06 CBMug/m‡ Air 0.101,4-Dioxane BDL
TO-15 P0L050712.5 12/28/20 16:06 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P0L050712.4 12/28/20 16:06 CBMug/m‡ Air 0.59Acetone49
TO-15 P0L050711.6 12/28/20 16:06 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P0L050712.6 12/28/20 16:06 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P0L050713.4 12/28/20 16:06 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P0L050715.2 12/28/20 16:06 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P0L050711.9 12/28/20 16:06 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P0L050716.2 12/28/20 16:06 CBMug/m‡ Air 1.6Carbon disulfide BDL
TO-15 P0L050713.1 12/28/20 16:06 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P0L050712.3 12/28/20 16:06 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P0L050711.3 12/28/20 16:06 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P0L050712.4 12/28/20 16:06 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P0L050711.0 12/28/20 16:06 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 16:06 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P0L050713.4 12/28/20 16:06 CBMJug/m‡ Air 0.87Cyclohexane3.2
TO-15 P0L050714.3 12/28/20 16:06 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P0L050712.5 12/28/20 16:06 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.6
TO-15 P0L050711.8 12/28/20 16:06 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P0L050712.2 12/28/20 16:06 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P0L050715.3 12/28/20 16:06 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P0L050711.8 12/28/20 16:06 CBMug/m‡ Air 0.25HexaneBDL
TO-15 P0L050714.9 12/28/20 16:06 CBMJug/m‡ Air 0.17Isopropyl alcohol 2.7
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 11 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-5
Sample ID: 0120370-04
Work Order: 0120370
Time Collected: 12/18/20 14:44
Time Submitted: 12/22/20 14:20
TO-15 P0L050715.6 12/28/20 16:06 CBMug/m‡ Air 0.38m,p-Xylenes BDL
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)BDL
TO-15 P0L050711.5 12/28/20 16:06 CBMJug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)1.3
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone BDL
TO-15 P0L050711.7 12/28/20 16:06 CBMug/m‡ Air 0.39Methylene Chloride 12
TO-15 P0L050711.8 12/28/20 16:06 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P0L050712.6 12/28/20 16:06 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P0L050712.2 12/28/20 16:06 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P0L050710.86 12/28/20 16:06 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P0L050712.1 12/28/20 16:06 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P0L050713.4 12/28/20 16:06 CBMJug/m‡ Air 0.44Tetrachloroethylene3.1
TO-15 P0L050711.5 12/28/20 16:06 CBMug/m‡ Air 0.21TetrahydrofuranBDL
TO-15 P0L050711.9 12/28/20 16:06 CBMug/m‡ Air 0.75TolueneBDL
TO-15 P0L050712.0 12/28/20 16:06 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 16:06 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P0L050712.7 12/28/20 16:06 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P0L050712.8 12/28/20 16:06 CBMJug/m‡ Air 0.43Trichlorofluoromethane2.0
TO-15 P0L050711.8 12/28/20 16:06 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P0L050711.3 12/28/20 16:06 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13088 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 12 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-4
Sample ID: 0120370-05
Work Order: 0120370
Time Collected: 12/18/20 15:09
Time Submitted: 12/22/20 14:20
Volatile Organic Compounds by GC/MS
TO-15 P0L050712.7 12/28/20 17:01 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P0L050713.4 12/28/20 17:01 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P0L050713.8 12/28/20 17:01 CBMug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane BDL
TO-15 P0L050712.7 12/28/20 17:01 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.411,1-Dichloroethylene 3.6
TO-15 P0L050713.7 12/28/20 17:01 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P0L050712.5 12/28/20 17:01 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene 4.3
TO-15 P0L050713.8 12/28/20 17:01 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P0L050713.0 12/28/20 17:01 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P0L050712.3 12/28/20 17:01 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P0L050713.5 12/28/20 17:01 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P0L050712.5 12/28/20 17:01 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P0L050711.1 12/28/20 17:01 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P0L050713.0 12/28/20 17:01 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P0L050713.0 12/28/20 17:01 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P0L050711.8 12/28/20 17:01 CBMug/m‡ Air 0.101,4-Dioxane BDL
TO-15 P0L050712.5 12/28/20 17:01 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P0L050712.4 12/28/20 17:01 CBMug/m‡ Air 0.59Acetone44
TO-15 P0L050711.6 12/28/20 17:01 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P0L050712.6 12/28/20 17:01 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P0L050713.4 12/28/20 17:01 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P0L050715.2 12/28/20 17:01 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P0L050711.9 12/28/20 17:01 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P0L050716.2 12/28/20 17:01 CBMug/m‡ Air 1.6Carbon disulfide BDL
TO-15 P0L050713.1 12/28/20 17:01 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P0L050712.3 12/28/20 17:01 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P0L050711.3 12/28/20 17:01 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P0L050712.4 12/28/20 17:01 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P0L050711.0 12/28/20 17:01 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 17:01 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P0L050713.4 12/28/20 17:01 CBMug/m‡ Air 0.87Cyclohexane4.0
TO-15 P0L050714.3 12/28/20 17:01 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P0L050712.5 12/28/20 17:01 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.6
TO-15 P0L050711.8 12/28/20 17:01 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P0L050712.2 12/28/20 17:01 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P0L050715.3 12/28/20 17:01 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P0L050711.8 12/28/20 17:01 CBMug/m‡ Air 0.25HexaneBDL
TO-15 P0L050714.9 12/28/20 17:01 CBMJug/m‡ Air 0.17Isopropyl alcohol 3.0
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 13 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-4
Sample ID: 0120370-05
Work Order: 0120370
Time Collected: 12/18/20 15:09
Time Submitted: 12/22/20 14:20
TO-15 P0L050715.6 12/28/20 17:01 CBMug/m‡ Air 0.38m,p-Xylenes BDL
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)BDL
TO-15 P0L050711.5 12/28/20 17:01 CBMJug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)1.3
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone BDL
TO-15 P0L050711.7 12/28/20 17:01 CBMug/m‡ Air 0.39Methylene Chloride 11
TO-15 P0L050711.8 12/28/20 17:01 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P0L050712.6 12/28/20 17:01 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P0L050712.2 12/28/20 17:01 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P0L050710.86 12/28/20 17:01 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P0L050712.1 12/28/20 17:01 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P0L050713.4 12/28/20 17:01 CBMJug/m‡ Air 0.44Tetrachloroethylene3.1
TO-15 P0L050711.5 12/28/20 17:01 CBMug/m‡ Air 0.21TetrahydrofuranBDL
TO-15 P0L050711.9 12/28/20 17:01 CBMJug/m‡ Air 0.75Toluene0.83
TO-15 P0L050712.0 12/28/20 17:01 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene 3.7
TO-15 P0L050712.3 12/28/20 17:01 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P0L050712.7 12/28/20 17:01 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P0L050712.8 12/28/20 17:01 CBMJug/m‡ Air 0.43Trichlorofluoromethane1.9
TO-15 P0L050711.8 12/28/20 17:01 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P0L050711.3 12/28/20 17:01 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13089 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 14 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-DUP
Sample ID: 0120370-06
Work Order: 0120370
Time Collected: 12/20/20 00:00
Time Submitted: 12/22/20 14:20
Volatile Organic Compounds by GC/MS
TO-15 P0L050712.7 12/28/20 17:53 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P0L050713.4 12/28/20 17:53 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P0L050713.8 12/28/20 17:53 CBMJug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane 2.4
TO-15 P0L050712.7 12/28/20 17:53 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P0L050713.7 12/28/20 17:53 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P0L050712.5 12/28/20 17:53 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene 4.4
TO-15 P0L050713.8 12/28/20 17:53 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P0L050713.0 12/28/20 17:53 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P0L050712.3 12/28/20 17:53 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P0L050713.5 12/28/20 17:53 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P0L050712.5 12/28/20 17:53 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P0L050711.1 12/28/20 17:53 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P0L050713.0 12/28/20 17:53 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P0L050713.0 12/28/20 17:53 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P0L050711.8 12/28/20 17:53 CBMug/m‡ Air 0.101,4-Dioxane BDL
TO-15 P0L050712.5 12/28/20 17:53 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P0L050712.4 12/28/20 17:53 CBMug/m‡ Air 0.59Acetone6.8
TO-15 P0L050711.6 12/28/20 17:53 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P0L050712.6 12/28/20 17:53 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P0L050713.4 12/28/20 17:53 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P0L050715.2 12/28/20 17:53 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P0L050711.9 12/28/20 17:53 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P0L050716.2 12/28/20 17:53 CBMJug/m‡ Air 1.6Carbon disulfide 2.3
TO-15 P0L050713.1 12/28/20 17:53 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P0L050712.3 12/28/20 17:53 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P0L050711.3 12/28/20 17:53 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P0L050712.4 12/28/20 17:53 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P0L050711.0 12/28/20 17:53 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 17:53 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P0L050713.4 12/28/20 17:53 CBMJug/m‡ Air 0.87Cyclohexane2.2
TO-15 P0L050714.3 12/28/20 17:53 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P0L050712.5 12/28/20 17:53 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.6
TO-15 P0L050711.8 12/28/20 17:53 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P0L050712.2 12/28/20 17:53 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P0L050715.3 12/28/20 17:53 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P0L050711.8 12/28/20 17:53 CBMug/m‡ Air 0.25HexaneBDL
TO-15 P0L050714.9 12/28/20 17:53 CBMJug/m‡ Air 0.17Isopropyl alcohol 2.0
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 15 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-DUP
Sample ID: 0120370-06
Work Order: 0120370
Time Collected: 12/20/20 00:00
Time Submitted: 12/22/20 14:20
TO-15 P0L050715.6 12/28/20 17:53 CBMug/m‡ Air 0.38m,p-Xylenes BDL
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)BDL
TO-15 P0L050711.5 12/28/20 17:53 CBMJug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)0.91
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone BDL
TO-15 P0L050711.7 12/28/20 17:53 CBMug/m‡ Air 0.39Methylene Chloride 10
TO-15 P0L050711.8 12/28/20 17:53 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P0L050712.6 12/28/20 17:53 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P0L050712.2 12/28/20 17:53 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P0L050710.86 12/28/20 17:53 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P0L050712.1 12/28/20 17:53 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P0L050713.4 12/28/20 17:53 CBMug/m‡ Air 0.44Tetrachloroethylene3.7
TO-15 P0L050711.5 12/28/20 17:53 CBMug/m‡ Air 0.21TetrahydrofuranBDL
TO-15 P0L050711.9 12/28/20 17:53 CBMug/m‡ Air 0.75TolueneBDL
TO-15 P0L050712.0 12/28/20 17:53 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 17:53 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P0L050712.7 12/28/20 17:53 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P0L050712.8 12/28/20 17:53 CBMug/m‡ Air 0.43Trichlorofluoromethane2.9
TO-15 P0L050711.8 12/28/20 17:53 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P0L050711.3 12/28/20 17:53 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13088 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 16 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-1
Sample ID: 0120370-07
Work Order: 0120370
Time Collected: 12/22/20 07:54
Time Submitted: 12/22/20 14:20
Volatile Organic Compounds by GC/MS
TO-15 P0L050712.7 12/28/20 18:45 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P0L050713.4 12/28/20 18:45 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P0L050713.8 12/28/20 18:45 CBMug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane BDL
TO-15 P0L050712.7 12/28/20 18:45 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P0L050713.7 12/28/20 18:45 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P0L050712.5 12/28/20 18:45 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene 4.3
TO-15 P0L050713.8 12/28/20 18:45 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P0L050713.0 12/28/20 18:45 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P0L050712.3 12/28/20 18:45 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P0L050713.5 12/28/20 18:45 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P0L050712.5 12/28/20 18:45 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P0L050711.1 12/28/20 18:45 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P0L050713.0 12/28/20 18:45 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P0L050713.0 12/28/20 18:45 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P0L050711.8 12/28/20 18:45 CBMJug/m‡ Air 0.101,4-Dioxane 1.0
TO-15 P0L050712.5 12/28/20 18:45 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P0L050712.4 12/28/20 18:45 CBMug/m‡ Air 0.59Acetone16
TO-15 P0L050711.6 12/28/20 18:45 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P0L050712.6 12/28/20 18:45 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P0L050713.4 12/28/20 18:45 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P0L050715.2 12/28/20 18:45 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P0L050711.9 12/28/20 18:45 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P0L050716.2 12/28/20 18:45 CBMJug/m‡ Air 1.6Carbon disulfide 2.9
TO-15 P0L050713.1 12/28/20 18:45 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P0L050712.3 12/28/20 18:45 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P0L050711.3 12/28/20 18:45 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P0L050712.4 12/28/20 18:45 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P0L050711.0 12/28/20 18:45 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 18:45 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P0L050713.4 12/28/20 18:45 CBMJug/m‡ Air 0.87Cyclohexane1.9
TO-15 P0L050714.3 12/28/20 18:45 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P0L050712.5 12/28/20 18:45 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.2
TO-15 P0L050711.8 12/28/20 18:45 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P0L050712.2 12/28/20 18:45 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P0L050715.3 12/28/20 18:45 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P0L050711.8 12/28/20 18:45 CBMug/m‡ Air 0.25HexaneBDL
TO-15 P0L050714.9 12/28/20 18:45 CBMJug/m‡ Air 0.17Isopropyl alcohol 3.2
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 17 of 24
Laboratory Report
12/31/2020
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-1
Sample ID: 0120370-07
Work Order: 0120370
Time Collected: 12/22/20 07:54
Time Submitted: 12/22/20 14:20
TO-15 P0L050715.6 12/28/20 18:45 CBMug/m‡ Air 0.38m,p-Xylenes BDL
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)BDL
TO-15 P0L050711.5 12/28/20 18:45 CBMJug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)1.2
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone BDL
TO-15 P0L050711.7 12/28/20 18:45 CBMJug/m‡ Air 0.39Methylene Chloride 1.2
TO-15 P0L050711.8 12/28/20 18:45 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P0L050712.6 12/28/20 18:45 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P0L050712.2 12/28/20 18:45 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P0L050710.86 12/28/20 18:45 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P0L050712.1 12/28/20 18:45 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P0L050713.4 12/28/20 18:45 CBMJug/m‡ Air 0.44Tetrachloroethylene2.3
TO-15 P0L050711.5 12/28/20 18:45 CBMug/m‡ Air 0.21TetrahydrofuranBDL
TO-15 P0L050711.9 12/28/20 18:45 CBMug/m‡ Air 0.75TolueneBDL
TO-15 P0L050712.0 12/28/20 18:45 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P0L050712.3 12/28/20 18:45 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P0L050712.7 12/28/20 18:45 CBMug/m‡ Air 0.27Trichloroethylene5.2
TO-15 P0L050712.8 12/28/20 18:45 CBMug/m‡ Air 0.43TrichlorofluoromethaneBDL
TO-15 P0L050711.8 12/28/20 18:45 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P0L050711.3 12/28/20 18:45 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13093 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
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12/31/20
Level II QC Report
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Work Order: 0120370
Time Submitted: 12/22/2020 2:20:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P0L0507 - NO PREP VOA
Blank (P0L0507-BLK1)Prepared & Analyzed: 12/28/20
1,1,1-Trichloroethane ug/m‡ AirBRL2.7
1,1,2,2-Tetrachloroethane ug/m‡ AirBRL3.4
1,1,2-Trichloro-1,2,2-trifluoroethane ug/m‡ AirBRL3.8
1,1,2-Trichloroethane ug/m‡ AirBRL2.7
1,1-Dichloroethane ug/m‡ AirBRL2.0
1,1-Dichloroethylene ug/m‡ AirBRL2.0
1,2,4-Trichlorobenzene ug/m‡ AirBRL3.7
1,2,4-Trimethylbenzene ug/m‡ AirBRL2.5
1,2-Dibromoethane ug/m‡ AirBRL3.8
1,2-Dichlorobenzene ug/m‡ AirBRL3.0
1,2-Dichloroethane ug/m‡ AirBRL2.0
1,2-Dichloropropane ug/m‡ AirBRL2.3
1,2-Dichloro-1,1,2,2-tetrafluoroethane ug/m‡ AirBRL3.5
1,3,5-Trimethylbenzene ug/m‡ AirBRL2.5
1,3-Butadiene ug/m‡ AirBRL1.1
1,3-Dichlorobenzene ug/m‡ AirBRL3.0
1,4-Dichlorobenzene ug/m‡ AirBRL3.0
1,4-Dioxane ug/m‡ AirBRL1.8
4-Ethyltoluene ug/m‡ AirBRL2.5
Acetone ug/m‡ AirBRL2.4
Benzene ug/m‡ AirBRL1.6
Benzyl chloride ug/m‡ AirBRL2.6
Bromodichloromethane ug/m‡ AirBRL3.4
Bromoform ug/m‡ AirBRL5.2
Bromomethane ug/m‡ AirBRL1.9
Carbon disulfide ug/m‡ AirBRL6.2
Carbon Tetrachloride ug/m‡ AirBRL3.1
Chlorobenzene ug/m‡ AirBRL2.3
Chloroethane ug/m‡ AirBRL1.3
Chloroform ug/m‡ AirBRL2.4
Chloromethane ug/m‡ AirBRL1.0
cis-1,2-Dichloroethylene ug/m‡ AirBRL2.0
cis-1,3-Dichloropropylene ug/m‡ AirBRL2.3
Cyclohexane ug/m‡ AirBRL3.4
Dibromochloromethane ug/m‡ AirBRL4.3
Dichlorodifluoromethane ug/m‡ AirBRL2.5
Ethyl Acetate ug/m‡ AirBRL1.8
Ethylbenzene ug/m‡ AirBRL2.2
Heptane ug/m‡ AirBRL2.0
Hexachlorobutadiene ug/m‡ AirBRL5.3
Hexane ug/m‡ AirBRL1.8
Isopropyl alcohol ug/m‡ AirBRL4.9
m,p-Xylenes ug/m‡ AirBRL5.6
Methyl Butyl Ketone (2-Hexanone)ug/m‡ AirBRL2.0
Methyl Ethyl Ketone (2-Butanone)ug/m‡ AirBRL1.5
Methyl Isobutyl Ketone ug/m‡ AirBRL2.0
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 19 of 24
12/31/20
Level II QC Report
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Work Order: 0120370
Time Submitted: 12/22/2020 2:20:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P0L0507 - NO PREP VOA
Blank (P0L0507-BLK1)Prepared & Analyzed: 12/28/20
Methylene Chloride ug/m‡ AirBRL1.7
Methyl-tert-Butyl Ether ug/m‡ AirBRL1.8
Naphthalene ug/m‡ AirBRL2.6
o-Xylene ug/m‡ AirBRL2.2
Propylene ug/m‡ AirBRL0.86
Styrene ug/m‡ AirBRL2.1
Tetrachloroethylene ug/m‡ AirBRL3.4
Tetrahydrofuran ug/m‡ AirBRL1.5
Toluene ug/m‡ AirBRL1.9
trans-1,2-Dichloroethylene ug/m‡ AirBRL2.0
trans-1,3-Dichloropropylene ug/m‡ AirBRL2.3
Trichloroethylene ug/m‡ AirBRL2.7
Trichlorofluoromethane ug/m‡ AirBRL2.8
Vinyl acetate ug/m‡ AirBRL1.8
Vinyl chloride ug/m‡ AirBRL1.3
ppbv 5.000 70-130Surrogate: 4-Bromofluorobenzene 904.51
LCS (P0L0507-BS1)Prepared & Analyzed: 12/28/20
1,1,1-Trichloroethane ug/m‡ Air25.6 2.7 27.28 70-13094
1,1,2,2-Tetrachloroethane ug/m‡ Air40.0 3.4 34.33 70-130116
1,1,2-Trichloro-1,2,2-trifluoroethane ug/m‡ Air40.6 3.8 38.32 70-130106
1,1,2-Trichloroethane ug/m‡ Air28.9 2.7 27.28 70-130106
1,1-Dichloroethane ug/m‡ Air21.3 2.0 20.24 70-130105
1,1-Dichloroethylene ug/m‡ Air20.5 2.0 19.82 70-130103
1,2,4-Trichlorobenzene ug/m‡ Air41.4 3.7 37.11 70-130112
1,2,4-Trimethylbenzene ug/m‡ Air20.6 2.5 24.58 70-13084
1,2-Dibromoethane ug/m‡ Air40.5 3.8 38.42 70-130105
1,2-Dichlorobenzene ug/m‡ Air29.5 3.0 30.06 70-13098
1,2-Dichloroethane ug/m‡ Air19.8 2.0 20.24 70-13098
1,2-Dichloropropane ug/m‡ Air22.3 2.3 23.11 70-13096
1,2-Dichloro-1,1,2,2-tetrafluoroethane ug/m‡ Air38.0 3.5 34.95 70-130109
1,3,5-Trimethylbenzene ug/m‡ Air27.4 2.5 24.58 70-130112
1,3-Butadiene ug/m‡ Air11.1 1.1 11.06 70-130101
1,3-Dichlorobenzene ug/m‡ Air28.6 3.0 30.06 70-13095
1,4-Dichlorobenzene ug/m‡ Air27.1 3.0 30.06 70-13090
1,4-Dioxane ug/m‡ Air16.8 1.8 18.02 70-13093
4-Ethyltoluene ug/m‡ Air21.6 2.5 24.58 70-13088
Acetone ug/m‡ Air11.9 2.4 11.88 70-130100
Benzene ug/m‡ Air15.7 1.6 15.97 70-13098
Benzyl chloride ug/m‡ Air22.7 2.6 25.89 70-13088
Bromodichloromethane ug/m‡ Air32.7 3.4 33.50 70-13098
Bromoform ug/m‡ Air56.6 5.2 51.69 70-130110
Bromomethane ug/m‡ Air20.7 1.9 19.42 70-130107
Carbon disulfide ug/m‡ Air16.3 6.2 15.57 70-130105
Carbon Tetrachloride ug/m‡ Air30.9 3.1 31.46 70-13098
Chlorobenzene ug/m‡ Air24.5 2.3 23.02 70-130107
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 20 of 24
12/31/20
Level II QC Report
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Work Order: 0120370
Time Submitted: 12/22/2020 2:20:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P0L0507 - NO PREP VOA
LCS (P0L0507-BS1)Prepared & Analyzed: 12/28/20
Chloroethane ug/m‡ Air13.9 1.3 13.19 70-130105
Chloroform ug/m‡ Air24.2 2.4 24.41 70-13099
Chloromethane ug/m‡ Air10.9 1.0 10.33 70-130105
cis-1,2-Dichloroethylene ug/m‡ Air20.5 2.0 19.82 70-130104
cis-1,3-Dichloropropylene ug/m‡ Air22.2 2.3 22.69 70-13098
Cyclohexane ug/m‡ Air14.5 3.4 17.21 70-13084
Dibromochloromethane ug/m‡ Air45.7 4.3 42.60 70-130107
Dichlorodifluoromethane ug/m‡ Air25.4 2.5 24.73 70-130103
Ethyl Acetate ug/m‡ Air17.8 1.8 18.02 70-13099
Ethylbenzene ug/m‡ Air23.1 2.2 21.71 70-130106
Heptane ug/m‡ Air20.1 2.0 20.49 70-13098
Hexachlorobutadiene ug/m‡ Air55.8 5.3 53.33 70-130105
Hexane ug/m‡ Air18.2 1.8 17.62 70-130103
Isopropyl alcohol ug/m‡ Air12.5 4.9 12.29 70-130102
m,p-Xylenes ug/m‡ Air62.4 5.6 56.49 70-130110
Methyl Butyl Ketone (2-Hexanone)ug/m‡ Air21.2 2.0 20.48 70-130104
Methyl Ethyl Ketone (2-Butanone)ug/m‡ Air15.0 1.5 14.75 70-130101
Methyl Isobutyl Ketone ug/m‡ Air19.4 2.0 20.48 70-13095
Methylene Chloride ug/m‡ Air17.8 1.7 17.37 70-130102
Methyl-tert-Butyl Ether ug/m‡ Air17.3 1.8 18.03 70-13096
Naphthalene ug/m‡ Air25.5 2.6 26.21 64-13697
o-Xylene ug/m‡ Air22.9 2.2 21.71 70-130105
Propylene ug/m‡ Air8.69 0.86 8.605 70-130101
Styrene ug/m‡ Air18.5 2.1 21.30 70-13087
Tetrachloroethylene ug/m‡ Air34.0 3.4 33.91 70-130100
Tetrahydrofuran ug/m‡ Air14.1 1.5 14.75 70-13096
Toluene ug/m‡ Air18.2 1.9 18.84 70-13097
trans-1,2-Dichloroethylene ug/m‡ Air20.0 2.0 19.82 70-130101
trans-1,3-Dichloropropylene ug/m‡ Air22.2 2.3 22.69 70-13098
Trichloroethylene ug/m‡ Air26.8 2.7 26.87 70-130100
Trichlorofluoromethane ug/m‡ Air29.5 2.8 28.09 70-130105
Vinyl acetate ug/m‡ Air18.1 1.8 17.61 70-130103
Vinyl chloride ug/m‡ Air13.0 1.3 12.78 70-130101
ppbv 5.000 70-130Surrogate: 4-Bromofluorobenzene 1025.08
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
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Sample Extraction Data
Prep Method: NO PREP VOA
Lab Number Batch Date/TimeInitialFinal
P0L05070120370-01 12/28/20 9:00250 250mL mL
P0L05070120370-02 12/28/20 9:00250 250mL mL
P0L05070120370-03 12/28/20 9:00250 250mL mL
P0L05070120370-04 12/28/20 9:00250 250mL mL
P0L05070120370-05 12/28/20 9:00250 250mL mL
P0L05070120370-06 12/28/20 9:00250 250mL mL
P0L05070120370-07 12/28/20 9:00250 250mL mL
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
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Page 23 of 24
Page 24 of 24
This data package contains the analytical results for the project identified above and includes a Case Narrative, Sample
Results and Chain of Custody. Unless otherwise noted, all samples were received in acceptable condition and processed
according to the referenced methods.
Data qualifiers are flagged individually on each sample. A key reference for the data qualifiers appears at the end of this case
narrative.
NC Certification No. 402
NC Drinking Water Cert No. 37735
SC Certification No. 99012
Case Narrative
1/15/21 15:06
Hart & Hickman (Charlotte)
Matt Ingalls
2923 South Tryon St. Ste 100
Charlotte, NC 28203
Project: ATL-001 Former Rite Aid
Lab Submittal Date: 01/14/2021
Work Order: 1010231
Please call if you have any questions relating to this analytical report.
Respectfully,
WAYPOINT ANALYTICAL
Senior Project Manager
Angela D. Overcash
Data Qualifiers Key Reference:
J Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag).
Method Detection LimitMDL
Below Reporting LimitBRL
Relative Percent DifferenceRPD
*Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and
reporting limit indicated with a J.
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
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Sample Receipt Summary
01/15/2021
Work Order: 1010231
Client Sample ID MatrixLab Sample ID Date/Time Sampled Date/Time Received
1010231-01 01/14/21 15:16B2-SSVP-6 01/14/21 16:14Air
1010231-02 01/14/21 15:44B2-SSVP-7 01/14/21 16:14Air
Samples were received in good condition at 6.0 degrees C unless otherwise noted.
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
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Client ID ResultParameterMethod UnitsWaypoint ID
Work Order: 1010231
01/15/2021
Summary of Detections
45 ug/m‡ Air1010231-01 B2-SSVP-6 Acetone TO-15
5.8 J ug/m‡ Air1010231-01 B2-SSVP-6 Carbon disulfide TO-15
3.5 ug/m‡ Air1010231-01 B2-SSVP-6 Dichlorodifluoromethane TO-15
6.9 ug/m‡ Air1010231-01 B2-SSVP-6 Isopropyl alcohol TO-15
2.0 J ug/m‡ Air1010231-01 B2-SSVP-6 m,p-Xylenes TO-15
4.6 ug/m‡ Air1010231-01 B2-SSVP-6 Methyl Butyl Ketone (2-Hexanone)TO-15
3.2 ug/m‡ Air1010231-01 B2-SSVP-6 Methyl Ethyl Ketone (2-Butanone)TO-15
4.8 ug/m‡ Air1010231-01 B2-SSVP-6 Methyl Isobutyl Ketone TO-15
3.9 ug/m‡ Air1010231-01 B2-SSVP-6 Methylene Chloride TO-15
0.91 J ug/m‡ Air1010231-01 B2-SSVP-6 Tetrahydrofuran TO-15
1.0 J ug/m‡ Air1010231-01 B2-SSVP-6 Toluene TO-15
2.0 J ug/m‡ Air1010231-01 B2-SSVP-6 Trichlorofluoromethane TO-15
68 ug/m‡ Air1010231-02 B2-SSVP-7 Acetone TO-15
0.64 J ug/m‡ Air1010231-02 B2-SSVP-7 Benzene TO-15
3.2 ug/m‡ Air1010231-02 B2-SSVP-7 Dichlorodifluoromethane TO-15
2.5 ug/m‡ Air1010231-02 B2-SSVP-7 Hexane TO-15
11 ug/m‡ Air1010231-02 B2-SSVP-7 Isopropyl alcohol TO-15
2.4 J ug/m‡ Air1010231-02 B2-SSVP-7 m,p-Xylenes TO-15
4.5 ug/m‡ Air1010231-02 B2-SSVP-7 Methyl Butyl Ketone (2-Hexanone)TO-15
2.5 ug/m‡ Air1010231-02 B2-SSVP-7 Methyl Ethyl Ketone (2-Butanone)TO-15
4.7 ug/m‡ Air1010231-02 B2-SSVP-7 Methyl Isobutyl Ketone TO-15
8.7 ug/m‡ Air1010231-02 B2-SSVP-7 Methylene Chloride TO-15
6.4 ug/m‡ Air1010231-02 B2-SSVP-7 Naphthalene TO-15
0.94 J ug/m‡ Air1010231-02 B2-SSVP-7 Tetrahydrofuran TO-15
2.1 ug/m‡ Air1010231-02 B2-SSVP-7 Toluene TO-15
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 3 of 11
Laboratory Report
01/15/2021
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-6
Sample ID: 1010231-01
Work Order: 1010231
Time Collected: 01/14/21 15:16
Time Submitted: 01/14/21 16:14
Volatile Organic Compounds by GC/MS
TO-15 P1A065812.7 1/15/21 12:26 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P1A065813.4 1/15/21 12:26 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P1A065813.8 1/15/21 12:26 CBMug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane BDL
TO-15 P1A065812.7 1/15/21 12:26 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P1A065813.7 1/15/21 12:26 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P1A065812.5 1/15/21 12:26 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene BDL
TO-15 P1A065813.8 1/15/21 12:26 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P1A065813.0 1/15/21 12:26 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P1A065812.3 1/15/21 12:26 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P1A065813.5 1/15/21 12:26 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P1A065812.5 1/15/21 12:26 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P1A065811.1 1/15/21 12:26 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P1A065813.0 1/15/21 12:26 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P1A065813.0 1/15/21 12:26 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P1A065811.8 1/15/21 12:26 CBMug/m‡ Air 0.101,4-Dioxane BDL
TO-15 P1A065812.5 1/15/21 12:26 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P1A065812.4 1/15/21 12:26 CBMug/m‡ Air 0.59Acetone45
TO-15 P1A065811.6 1/15/21 12:26 CBMug/m‡ Air 0.16BenzeneBDL
TO-15 P1A065812.6 1/15/21 12:26 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P1A065813.4 1/15/21 12:26 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P1A065815.2 1/15/21 12:26 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P1A065811.9 1/15/21 12:26 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P1A065816.2 1/15/21 12:26 CBMJug/m‡ Air 1.6Carbon disulfide 5.8
TO-15 P1A065813.1 1/15/21 12:26 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P1A065812.3 1/15/21 12:26 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P1A065811.3 1/15/21 12:26 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P1A065812.4 1/15/21 12:26 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P1A065811.0 1/15/21 12:26 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P1A065812.3 1/15/21 12:26 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P1A065813.4 1/15/21 12:26 CBMug/m‡ Air 0.87CyclohexaneBDL
TO-15 P1A065814.3 1/15/21 12:26 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P1A065812.5 1/15/21 12:26 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.5
TO-15 P1A065811.8 1/15/21 12:26 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P1A065812.2 1/15/21 12:26 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P1A065815.3 1/15/21 12:26 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P1A065811.8 1/15/21 12:26 CBMug/m‡ Air 0.25HexaneBDL
TO-15 P1A065814.9 1/15/21 12:26 CBMug/m‡ Air 0.17Isopropyl alcohol 6.9
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 4 of 11
Laboratory Report
01/15/2021
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-6
Sample ID: 1010231-01
Work Order: 1010231
Time Collected: 01/14/21 15:16
Time Submitted: 01/14/21 16:14
TO-15 P1A065815.6 1/15/21 12:26 CBMJug/m‡ Air 0.38m,p-Xylenes 2.0
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)4.6
TO-15 P1A065811.5 1/15/21 12:26 CBMug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)3.2
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone 4.8
TO-15 P1A065811.7 1/15/21 12:26 CBMug/m‡ Air 0.39Methylene Chloride 3.9
TO-15 P1A065811.8 1/15/21 12:26 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P1A065812.6 1/15/21 12:26 CBMug/m‡ Air 1.0NaphthaleneBDL
TO-15 P1A065812.2 1/15/21 12:26 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P1A065810.86 1/15/21 12:26 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P1A065812.1 1/15/21 12:26 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P1A065813.4 1/15/21 12:26 CBMug/m‡ Air 0.44TetrachloroethyleneBDL
TO-15 P1A065811.5 1/15/21 12:26 CBMJug/m‡ Air 0.21Tetrahydrofuran0.91
TO-15 P1A065811.9 1/15/21 12:26 CBMJug/m‡ Air 0.75Toluene1.0
TO-15 P1A065812.0 1/15/21 12:26 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P1A065812.3 1/15/21 12:26 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P1A065812.7 1/15/21 12:26 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P1A065812.8 1/15/21 12:26 CBMJug/m‡ Air 0.43Trichlorofluoromethane2.0
TO-15 P1A065811.8 1/15/21 12:26 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P1A065811.3 1/15/21 12:26 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13087 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 5 of 11
Laboratory Report
01/15/2021
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-7
Sample ID: 1010231-02
Work Order: 1010231
Time Collected: 01/14/21 15:44
Time Submitted: 01/14/21 16:14
Volatile Organic Compounds by GC/MS
TO-15 P1A065812.7 1/15/21 13:19 CBMug/m‡ Air 0.291,1,1-Trichloroethane BDL
TO-15 P1A065813.4 1/15/21 13:19 CBMug/m‡ Air 0.281,1,2,2-Tetrachloroethane BDL
TO-15 P1A065813.8 1/15/21 13:19 CBMug/m‡ Air 0.531,1,2-Trichloro-1,2,2-trifluoroethane BDL
TO-15 P1A065812.7 1/15/21 13:19 CBMug/m‡ Air 0.351,1,2-Trichloroethane BDL
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.471,1-Dichloroethane BDL
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.411,1-Dichloroethylene BDL
TO-15 P1A065813.7 1/15/21 13:19 CBMug/m‡ Air 0.251,2,4-Trichlorobenzene BDL
TO-15 P1A065812.5 1/15/21 13:19 CBMug/m‡ Air 0.291,2,4-Trimethylbenzene BDL
TO-15 P1A065813.8 1/15/21 13:19 CBMug/m‡ Air 0.611,2-Dibromoethane BDL
TO-15 P1A065813.0 1/15/21 13:19 CBMug/m‡ Air 0.481,2-Dichlorobenzene BDL
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.221,2-Dichloroethane BDL
TO-15 P1A065812.3 1/15/21 13:19 CBMug/m‡ Air 0.401,2-Dichloropropane BDL
TO-15 P1A065813.5 1/15/21 13:19 CBMug/m‡ Air 0.621,2-Dichloro-1,1,2,2-tetrafluoroethane BDL
TO-15 P1A065812.5 1/15/21 13:19 CBMug/m‡ Air 0.261,3,5-Trimethylbenzene BDL
TO-15 P1A065811.1 1/15/21 13:19 CBMug/m‡ Air 0.191,3-Butadiene BDL
TO-15 P1A065813.0 1/15/21 13:19 CBMug/m‡ Air 0.211,3-Dichlorobenzene BDL
TO-15 P1A065813.0 1/15/21 13:19 CBMug/m‡ Air 0.251,4-Dichlorobenzene BDL
TO-15 P1A065811.8 1/15/21 13:19 CBMug/m‡ Air 0.101,4-Dioxane BDL
TO-15 P1A065812.5 1/15/21 13:19 CBMug/m‡ Air 0.264-Ethyltoluene BDL
TO-15 P1A065820481/14/21 17:45 CBMug/m‡ Air 12Acetone68
TO-15 P1A065811.6 1/15/21 13:19 CBMJug/m‡ Air 0.16Benzene0.64
TO-15 P1A065812.6 1/15/21 13:19 CBMug/m‡ Air 0.20Benzyl chloride BDL
TO-15 P1A065813.4 1/15/21 13:19 CBMug/m‡ Air 0.26BromodichloromethaneBDL
TO-15 P1A065815.2 1/15/21 13:19 CBMug/m‡ Air 0.45BromoformBDL
TO-15 P1A065811.9 1/15/21 13:19 CBMug/m‡ Air 0.32BromomethaneBDL
TO-15 P1A065816.2 1/15/21 13:19 CBMug/m‡ Air 1.6Carbon disulfide BDL
TO-15 P1A065813.1 1/15/21 13:19 CBMug/m‡ Air 0.24Carbon Tetrachloride BDL
TO-15 P1A065812.3 1/15/21 13:19 CBMug/m‡ Air 0.17ChlorobenzeneBDL
TO-15 P1A065811.3 1/15/21 13:19 CBMug/m‡ Air 0.38ChloroethaneBDL
TO-15 P1A065812.4 1/15/21 13:19 CBMug/m‡ Air 0.26ChloroformBDL
TO-15 P1A065811.0 1/15/21 13:19 CBMug/m‡ Air 0.26ChloromethaneBDL
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.52cis-1,2-Dichloroethylene BDL
TO-15 P1A065812.3 1/15/21 13:19 CBMug/m‡ Air 0.16cis-1,3-Dichloropropylene BDL
TO-15 P1A065813.4 1/15/21 13:19 CBMug/m‡ Air 0.87CyclohexaneBDL
TO-15 P1A065814.3 1/15/21 13:19 CBMug/m‡ Air 0.48DibromochloromethaneBDL
TO-15 P1A065812.5 1/15/21 13:19 CBMug/m‡ Air 0.41Dichlorodifluoromethane3.2
TO-15 P1A065811.8 1/15/21 13:19 CBMug/m‡ Air 0.25Ethyl Acetate BDL
TO-15 P1A065812.2 1/15/21 13:19 CBMug/m‡ Air 0.19EthylbenzeneBDL
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.19HeptaneBDL
TO-15 P1A065815.3 1/15/21 13:19 CBMug/m‡ Air 0.43HexachlorobutadieneBDL
TO-15 P1A065811.8 1/15/21 13:19 CBMug/m‡ Air 0.25Hexane2.5
TO-15 P1A065814.9 1/15/21 13:19 CBMug/m‡ Air 0.17Isopropyl alcohol 11
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 6 of 11
Laboratory Report
01/15/2021
ResultParameter Batch
ID
Report
Limit
Analysis
Date/Time
MethodDilution
Factor
Units MDL Analyst
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Sample Matrix: Air
Client Sample ID: B2-SSVP-7
Sample ID: 1010231-02
Work Order: 1010231
Time Collected: 01/14/21 15:44
Time Submitted: 01/14/21 16:14
TO-15 P1A065815.6 1/15/21 13:19 CBMJug/m‡ Air 0.38m,p-Xylenes 2.4
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.26Methyl Butyl Ketone (2-Hexanone)4.5
TO-15 P1A065811.5 1/15/21 13:19 CBMug/m‡ Air 0.30Methyl Ethyl Ketone (2-Butanone)2.5
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.26Methyl Isobutyl Ketone 4.7
TO-15 P1A065811.7 1/15/21 13:19 CBMug/m‡ Air 0.39Methylene Chloride 8.7
TO-15 P1A065811.8 1/15/21 13:19 CBMug/m‡ Air 0.21Methyl-tert-Butyl Ether BDL
TO-15 P1A065812.6 1/15/21 13:19 CBMug/m‡ Air 1.0Naphthalene6.4
TO-15 P1A065812.2 1/15/21 13:19 CBMug/m‡ Air 0.18o-Xylene BDL
TO-15 P1A065810.86 1/15/21 13:19 CBMug/m‡ Air 0.14PropyleneBDL
TO-15 P1A065812.1 1/15/21 13:19 CBMug/m‡ Air 0.15StyreneBDL
TO-15 P1A065813.4 1/15/21 13:19 CBMug/m‡ Air 0.44TetrachloroethyleneBDL
TO-15 P1A065811.5 1/15/21 13:19 CBMJug/m‡ Air 0.21Tetrahydrofuran0.94
TO-15 P1A065811.9 1/15/21 13:19 CBMug/m‡ Air 0.75Toluene2.1
TO-15 P1A065812.0 1/15/21 13:19 CBMug/m‡ Air 0.48trans-1,2-Dichloroethylene BDL
TO-15 P1A065812.3 1/15/21 13:19 CBMug/m‡ Air 0.17trans-1,3-Dichloropropylene BDL
TO-15 P1A065812.7 1/15/21 13:19 CBMug/m‡ Air 0.27TrichloroethyleneBDL
TO-15 P1A065812.8 1/15/21 13:19 CBMug/m‡ Air 0.43TrichlorofluoromethaneBDL
TO-15 P1A065811.8 1/15/21 13:19 CBMug/m‡ Air 0.25Vinyl acetate BDL
TO-15 P1A065811.3 1/15/21 13:19 CBMug/m‡ Air 0.29Vinyl chloride BDL
Surrogate Recovery Control Limits
70-13085 %4-Bromofluorobenzene
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 7 of 11
1/15/21
Level II QC Report
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Work Order: 1010231
Time Submitted: 1/14/2021 4:14:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P1A0658 - NO PREP VOA
Blank (P1A0658-BLK1)Prepared & Analyzed: 01/15/21
1,1,1-Trichloroethane ug/m‡ AirBRL2.7
1,1,2,2-Tetrachloroethane ug/m‡ AirBRL3.4
1,1,2-Trichloro-1,2,2-trifluoroethane ug/m‡ AirBRL3.8
1,1,2-Trichloroethane ug/m‡ AirBRL2.7
1,1-Dichloroethane ug/m‡ AirBRL2.0
1,1-Dichloroethylene ug/m‡ AirBRL2.0
1,2,4-Trichlorobenzene ug/m‡ AirBRL3.7
1,2,4-Trimethylbenzene ug/m‡ AirBRL2.5
1,2-Dibromoethane ug/m‡ AirBRL3.8
1,2-Dichlorobenzene ug/m‡ AirBRL3.0
1,2-Dichloroethane ug/m‡ AirBRL2.0
1,2-Dichloropropane ug/m‡ AirBRL2.3
1,2-Dichloro-1,1,2,2-tetrafluoroethane ug/m‡ AirBRL3.5
1,3,5-Trimethylbenzene ug/m‡ AirBRL2.5
1,3-Butadiene ug/m‡ AirBRL1.1
1,3-Dichlorobenzene ug/m‡ AirBRL3.0
1,4-Dichlorobenzene ug/m‡ AirBRL3.0
1,4-Dioxane ug/m‡ AirBRL1.8
4-Ethyltoluene ug/m‡ AirBRL2.5
Acetone ug/m‡ AirBRL2.4
Benzene ug/m‡ AirBRL1.6
Benzyl chloride ug/m‡ AirBRL2.6
Bromodichloromethane ug/m‡ AirBRL3.4
Bromoform ug/m‡ AirBRL5.2
Bromomethane ug/m‡ AirBRL1.9
Carbon disulfide ug/m‡ AirBRL6.2
Carbon Tetrachloride ug/m‡ AirBRL3.1
Chlorobenzene ug/m‡ AirBRL2.3
Chloroethane ug/m‡ AirBRL1.3
Chloroform ug/m‡ AirBRL2.4
Chloromethane ug/m‡ AirBRL1.0
cis-1,2-Dichloroethylene ug/m‡ AirBRL2.0
cis-1,3-Dichloropropylene ug/m‡ AirBRL2.3
Cyclohexane ug/m‡ AirBRL3.4
Dibromochloromethane ug/m‡ AirBRL4.3
Dichlorodifluoromethane ug/m‡ AirBRL2.5
Ethyl Acetate ug/m‡ AirBRL1.8
Ethylbenzene ug/m‡ AirBRL2.2
Heptane ug/m‡ AirBRL2.0
Hexachlorobutadiene ug/m‡ AirBRL5.3
Hexane ug/m‡ AirBRL1.8
Isopropyl alcohol ug/m‡ AirBRL4.9
m,p-Xylenes ug/m‡ AirBRL5.6
Methyl Butyl Ketone (2-Hexanone)ug/m‡ AirBRL2.0
Methyl Ethyl Ketone (2-Butanone)ug/m‡ AirBRL1.5
Methyl Isobutyl Ketone ug/m‡ AirBRL2.0
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 8 of 11
1/15/21
Level II QC Report
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Work Order: 1010231
Time Submitted: 1/14/2021 4:14:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P1A0658 - NO PREP VOA
Blank (P1A0658-BLK1)Prepared & Analyzed: 01/15/21
Methylene Chloride ug/m‡ AirBRL1.7
Methyl-tert-Butyl Ether ug/m‡ AirBRL1.8
Naphthalene ug/m‡ AirBRL2.6
o-Xylene ug/m‡ AirBRL2.2
Propylene ug/m‡ AirBRL0.86
Styrene ug/m‡ AirBRL2.1
Tetrachloroethylene ug/m‡ AirBRL3.4
Tetrahydrofuran ug/m‡ AirBRL1.5
Toluene ug/m‡ AirBRL1.9
trans-1,2-Dichloroethylene ug/m‡ AirBRL2.0
trans-1,3-Dichloropropylene ug/m‡ AirBRL2.3
Trichloroethylene ug/m‡ AirBRL2.7
Trichlorofluoromethane ug/m‡ AirBRL2.8
Vinyl acetate ug/m‡ AirBRL1.8
Vinyl chloride ug/m‡ AirBRL1.3
ppbv 5.000 70-130Surrogate: 4-Bromofluorobenzene 904.49
LCS (P1A0658-BS1)Prepared & Analyzed: 01/15/21
1,1,1-Trichloroethane ug/m‡ Air28.6 2.7 27.28 70-130105
1,1,2,2-Tetrachloroethane ug/m‡ Air36.7 3.4 34.33 70-130107
1,1,2-Trichloro-1,2,2-trifluoroethane ug/m‡ Air42.2 3.8 38.32 70-130110
1,1,2-Trichloroethane ug/m‡ Air30.4 2.7 27.28 70-130111
1,1-Dichloroethane ug/m‡ Air22.3 2.0 20.24 70-130110
1,1-Dichloroethylene ug/m‡ Air22.5 2.0 19.82 70-130113
1,2,4-Trichlorobenzene ug/m‡ Air42.3 3.7 37.11 70-130114
1,2,4-Trimethylbenzene ug/m‡ Air24.8 2.5 24.58 70-130101
1,2-Dibromoethane ug/m‡ Air43.6 3.8 38.42 70-130113
1,2-Dichlorobenzene ug/m‡ Air34.0 3.0 30.06 70-130113
1,2-Dichloroethane ug/m‡ Air21.7 2.0 20.24 70-130107
1,2-Dichloropropane ug/m‡ Air24.9 2.3 23.11 70-130108
1,2-Dichloro-1,1,2,2-tetrafluoroethane ug/m‡ Air34.8 3.5 34.95 70-130100
1,3,5-Trimethylbenzene ug/m‡ Air26.9 2.5 24.58 70-130110
1,3-Butadiene ug/m‡ Air12.6 1.1 11.06 70-130114
1,3-Dichlorobenzene ug/m‡ Air33.4 3.0 30.06 70-130111
1,4-Dichlorobenzene ug/m‡ Air32.2 3.0 30.06 70-130107
1,4-Dioxane ug/m‡ Air20.0 1.8 18.02 70-130111
4-Ethyltoluene ug/m‡ Air24.9 2.5 24.58 70-130101
Acetone ug/m‡ Air12.6 2.4 11.88 70-130106
Benzene ug/m‡ Air17.3 1.6 15.97 70-130108
Benzyl chloride ug/m‡ Air30.5 2.6 25.89 70-130118
Bromodichloromethane ug/m‡ Air36.4 3.4 33.50 70-130109
Bromoform ug/m‡ Air57.6 5.2 51.69 70-130111
Bromomethane ug/m‡ Air21.4 1.9 19.42 70-130110
Carbon disulfide ug/m‡ Air17.7 6.2 15.57 70-130113
Carbon Tetrachloride ug/m‡ Air34.2 3.1 31.46 70-130109
Chlorobenzene ug/m‡ Air25.9 2.3 23.02 70-130113
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 9 of 11
1/15/21
Level II QC Report
2923 South Tryon St. Ste 100
Project: ATL-001 Former Rite AidHart & Hickman (Charlotte)
Charlotte, NC 28203
Attn: Matt Ingalls
Work Order: 1010231
Time Submitted: 1/14/2021 4:14:00PM
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Volatile Organic Compounds by GC/MS - Quality Control
Batch P1A0658 - NO PREP VOA
LCS (P1A0658-BS1)Prepared & Analyzed: 01/15/21
Chloroethane ug/m‡ Air14.5 1.3 13.19 70-130110
Chloroform ug/m‡ Air26.6 2.4 24.41 70-130109
Chloromethane ug/m‡ Air11.1 1.0 10.33 70-130108
cis-1,2-Dichloroethylene ug/m‡ Air21.9 2.0 19.82 70-130110
cis-1,3-Dichloropropylene ug/m‡ Air25.1 2.3 22.69 70-130111
Cyclohexane ug/m‡ Air16.6 3.4 17.21 70-13097
Dibromochloromethane ug/m‡ Air47.5 4.3 42.60 70-130111
Dichlorodifluoromethane ug/m‡ Air27.0 2.5 24.73 70-130109
Ethyl Acetate ug/m‡ Air19.7 1.8 18.02 70-130110
Ethylbenzene ug/m‡ Air24.5 2.2 21.71 70-130113
Heptane ug/m‡ Air23.4 2.0 20.49 70-130114
Hexachlorobutadiene ug/m‡ Air64.8 5.3 53.33 70-130122
Hexane ug/m‡ Air19.6 1.8 17.62 70-130111
Isopropyl alcohol ug/m‡ Air12.8 4.9 12.29 70-130104
m,p-Xylenes ug/m‡ Air67.6 5.6 56.49 70-130120
Methyl Butyl Ketone (2-Hexanone)ug/m‡ Air23.4 2.0 20.48 70-130114
Methyl Ethyl Ketone (2-Butanone)ug/m‡ Air16.1 1.5 14.75 70-130109
Methyl Isobutyl Ketone ug/m‡ Air21.6 2.0 20.48 70-130106
Methylene Chloride ug/m‡ Air18.9 1.7 17.37 70-130109
Methyl-tert-Butyl Ether ug/m‡ Air18.9 1.8 18.03 70-130105
Naphthalene ug/m‡ Air30.8 2.6 26.21 64-136118
o-Xylene ug/m‡ Air25.2 2.2 21.71 70-130116
Propylene ug/m‡ Air9.26 0.86 8.605 70-130108
Styrene ug/m‡ Air21.1 2.1 21.30 70-13099
Tetrachloroethylene ug/m‡ Air37.4 3.4 33.91 70-130110
Tetrahydrofuran ug/m‡ Air15.6 1.5 14.75 70-130106
Toluene ug/m‡ Air20.7 1.9 18.84 70-130110
trans-1,2-Dichloroethylene ug/m‡ Air21.7 2.0 19.82 70-130109
trans-1,3-Dichloropropylene ug/m‡ Air25.1 2.3 22.69 70-130111
Trichloroethylene ug/m‡ Air29.1 2.7 26.87 70-130108
Trichlorofluoromethane ug/m‡ Air31.3 2.8 28.09 70-130111
Vinyl acetate ug/m‡ Air19.4 1.8 17.61 70-130110
Vinyl chloride ug/m‡ Air14.1 1.3 12.78 70-130110
ppbv 5.000 70-130Surrogate: 4-Bromofluorobenzene 1055.26
Sample Extraction Data
Prep Method: NO PREP VOA
Lab Number Batch Date/TimeInitialFinal
P1A06581010231-01 01/15/21 9:00250 250mL mL
P1A06581010231-02 01/14/21 17:00250 250mL mL
P1A06581010231-02 01/14/21 17:00250 250mL mL
This report should not be reproduced, except in its entirety, without the written consent of Waypoint Analytical.
449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543
Phone: [phone] - Toll Free Number: 1-800/529-6364 - Fax: [phone] Page 10 of 11
Page 11 of 11

Appendix C Risk Calculator Summary Pages
Version Date:
Basis:
Site Name:
Site Address:
DEQ Section:
Site ID:
Exposure Unit ID:
Submittal Date:
Reviewed By:
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
SGP-1
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SGP-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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SGP-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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
1
70
80
330
1
250
8
3527
0.3
50
100
19652
2.5
0.71
1
20
350
24
6032
0.07
0.54
1
70
80
2373
0.2
200
6365
0.78
Input Form 1B
Exposure Unit ID: SGP-1
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SGP-1
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SGP-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
7.4 67-64-1 Acetone ug/m3
5.1 100-44-7 Benzyl Chloride ug/m3
12 75-27-4 Bromodichloromethane ug/m3
10 75-15-0 Carbon Disulfide ug/m3
70 67-66-3 Chloroform ug/m3
4 110-82-7 Cyclohexane ug/m3
2.1 124-48-1 Dibromochloromethane ug/m3
1.3 106-46-7 Dichlorobenzene, 1,4-ug/m3
4.1 75-71-8 Dichlorodifluoromethane ug/m3
1 109-99-9 ~Tetrahydrofuran ug/m3
4.2 67-63-0 Isopropanol ug/m3
0.97 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
10 75-09-2 Methylene Chloride ug/m3
4.3 100-42-5 Styrene ug/m3
28 127-18-4 Tetrachloroethylene ug/m3
1.8 108-88-3 Toluene ug/m3
6.3 75-69-4 Trichlorofluoromethane ug/m3
5.1 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
Concentrations provided are those detected in the SGP-1 sample.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SGP-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 2.5E-05 1.9E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.9E-06 1.5E-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
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SGP-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 7.4 0.222 -6.5E+03 6.9E-06
100-44-7 Benzyl Chloride 5.1 0.153 5.7E-02 2.1E-01 2.7E-06 1.5E-01
75-27-4 Bromodichloromethane 12 0.36 7.6E-02 -4.7E-06
75-15-0 Carbon Disulfide 10 0.3 -1.5E+02 4.1E-04
67-66-3 Chloroform 70 2.1 1.2E-01 2.0E+01 1.7E-05 2.1E-02
110-82-7 Cyclohexane 4 0.12 -1.3E+03 1.9E-05
124-48-1 Dibromochloromethane 2.1 0.063 --
106-46-7 Dichlorobenzene, 1,4-1.3 0.039 2.6E-01 1.7E+02 1.5E-07 4.7E-05
75-71-8 Dichlorodifluoromethane 4.1 0.123 -2.1E+01 1.2E-03
109-99-9 ~Tetrahydrofuran 1 0.03 -4.2E+02 1.4E-05
67-63-0 Isopropanol 4.2 0.126 -4.2E+01 6.0E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)0.97 0.0291 -1.0E+03 5.6E-06
75-09-2 Methylene Chloride 10 0.3 1.0E+02 1.3E+02 3.0E-09 4.8E-04
100-42-5 Styrene 4.3 0.129 -2.1E+02 1.2E-04
127-18-4 Tetrachloroethylene 28 0.84 1.1E+01 8.3E+00 7.8E-08 2.0E-02
108-88-3 Toluene 1.8 0.054 -1.0E+03 1.0E-05
75-69-4 Trichlorofluoromethane 6.3 0.189 --
95-63-6 Trimethylbenzene, 1,2,4-5.1 0.153 -1.3E+01 2.4E-03
108-38-3 Xylene, m-1.8 0.054 -2.1E+01 5.2E-04
Cumulative:2.5E-05 1.9E-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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SGP-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 7.4 0.074 -2.7E+04 5.4E-07100-44-7 Benzyl Chloride 5.1 0.051 2.5E-01 8.8E-01 2.0E-07 1.2E-0275-27-4 Bromodichloromethane 12 0.12 3.3E-01 -3.6E-0775-15-0 Carbon Disulfide 10 0.1 -6.1E+02 3.3E-0567-66-3 Chloroform 70 0.7 5.3E-01 8.6E+01 1.3E-06 1.6E-03110-82-7 Cyclohexane 4 0.04 -5.3E+03 1.5E-06124-48-1 Dibromochloromethane 2.1 0.021 --106-46-7 Dichlorobenzene, 1,4-1.3 0.013 1.1E+00 7.0E+02 1.2E-08 3.7E-0675-71-8 Dichlorodifluoromethane 4.1 0.041 -8.8E+01 9.4E-05109-99-9 ~Tetrahydrofuran 1 0.01 -1.8E+03 1.1E-0667-63-0 Isopropanol 4.2 0.042 -1.8E+02 4.8E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)0.97 0.0097 -4.4E+03 4.4E-07
75-09-2 Methylene Chloride 10 0.1 1.2E+03 5.3E+02 8.2E-11 3.8E-05100-42-5 Styrene 4.3 0.043 -8.8E+02 9.8E-06127-18-4 Tetrachloroethylene 28 0.28 4.7E+01 3.5E+01 5.9E-09 1.6E-03108-88-3 Toluene 1.8 0.018 -4.4E+03 8.2E-0775-69-4 Trichlorofluoromethane 6.3 0.063 --95-63-6 Trimethylbenzene, 1,2,4-5.1 0.051 -5.3E+01 1.9E-04108-38-3 Xylene, m-1.8 0.018 -8.8E+01 4.1E-05
Cumulative:1.9E-06 1.5E-02
All concentrations are in ug/m3
Output Form 3E
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:
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
SSVP-1
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
1
70
80
330
1
250
8
3527
0.3
50
100
19652
2.5
0.71
1
20
350
24
6032
0.07
0.54
1
70
80
2373
0.2
200
6365
0.78
Input Form 1B
Exposure Unit ID: SSVP-1
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SSVP-1
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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
16 67-64-1 Acetone ug/m3
2.9 75-15-0 Carbon Disulfide ug/m3
1.9 110-82-7 Cyclohexane ug/m3
3.2 75-71-8 Dichlorodifluoromethane ug/m3
1 123-91-1 Dioxane, 1,4-ug/m3
3.2 67-63-0 Isopropanol ug/m3
1.2 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
1.2 75-09-2 Methylene Chloride ug/m3
2.3 127-18-4 Tetrachloroethylene ug/m3
5.2 79-01-6 Trichloroethylene ug/m3
4.3 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are those detected in the SSVP-1 sample.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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-07 8.1E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 2.2E-08 6.4E-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
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 16 0.48 -6.5E+03 1.5E-05
75-15-0 Carbon Disulfide 2.9 0.087 -1.5E+02 1.2E-04
110-82-7 Cyclohexane 1.9 0.057 -1.3E+03 9.1E-06
75-71-8 Dichlorodifluoromethane 3.2 0.096 -2.1E+01 9.2E-04
123-91-1 Dioxane, 1,4-1 0.03 5.6E-01 6.3E+00 5.3E-08 9.6E-04
67-63-0 Isopropanol 3.2 0.096 -4.2E+01 4.6E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.2 0.036 -1.0E+03 6.9E-06
75-09-2 Methylene Chloride 1.2 0.036 1.0E+02 1.3E+02 3.6E-10 5.8E-05
127-18-4 Tetrachloroethylene 2.3 0.069 1.1E+01 8.3E+00 6.4E-09 1.7E-03
79-01-6 Trichloroethylene 5.2 0.156 4.8E-01 4.2E-01 3.3E-07 7.5E-02
95-63-6 Trimethylbenzene, 1,2,4-4.3 0.129 -1.3E+01 2.1E-03
Cumulative:3.9E-07 8.1E-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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 16 0.16 -2.7E+04 1.2E-0675-15-0 Carbon Disulfide 2.9 0.029 -6.1E+02 9.5E-06110-82-7 Cyclohexane 1.9 0.019 -5.3E+03 7.2E-0775-71-8 Dichlorodifluoromethane 3.2 0.032 -8.8E+01 7.3E-05123-91-1 Dioxane, 1,4-1 0.01 2.5E+00 2.6E+01 4.1E-09 7.6E-0567-63-0 Isopropanol 3.2 0.032 -1.8E+02 3.7E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.2 0.012 -4.4E+03 5.5E-07
75-09-2 Methylene Chloride 1.2 0.012 1.2E+03 5.3E+02 9.8E-12 4.6E-06127-18-4 Tetrachloroethylene 2.3 0.023 4.7E+01 3.5E+01 4.9E-10 1.3E-0479-01-6 Trichloroethylene 5.2 0.052 3.0E+00 1.8E+00 1.7E-08 5.9E-0395-63-6 Trimethylbenzene, 1,2,4-4.3 0.043 -5.3E+01 1.6E-04
Cumulative:2.2E-08 6.4E-03
All concentrations are in ug/m3
Output Form 3E
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:
SSVP-2/SSVP-DUP
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-2/SSVP-DUP
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-2/SSVP-DUP
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
Input Form 1B
Exposure Unit ID: SSVP-2/SSVP-DUP
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
2373
0.2
200
6365
0.78
0.54
1
70
80
20
350
24
6032
0.07
100
19652
2.5
0.71
1
1
70
80
330
1
250
8
3527
0.3
50
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SSVP-2/SSVP-DUP
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-2/SSVP-DUP
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
13 67-64-1 Acetone ug/m3
2.3 75-15-0 Carbon Disulfide ug/m3
2.2 110-82-7 Cyclohexane ug/m3
3.6 75-71-8 Dichlorodifluoromethane ug/m3
2 67-63-0 Isopropanol ug/m3
0.97 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
10 75-09-2 Methylene Chloride ug/m3
3.7 127-18-4 Tetrachloroethylene ug/m3
2.5 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3
2.9 75-69-4 Trichlorofluoromethane ug/m3
4.4 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are those detected in the maximum of the SSVP-2 and SSVP-DUP samples, which were each collected from the same location.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-2/SSVP-DUP
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-08 6.7E-03 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 8.7E-10 5.3E-04 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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-2/SSVP-DUP
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 13 0.39 -6.5E+03 1.2E-05
75-15-0 Carbon Disulfide 2.3 0.069 -1.5E+02 9.5E-05
110-82-7 Cyclohexane 2.2 0.066 -1.3E+03 1.1E-05
75-71-8 Dichlorodifluoromethane 3.6 0.108 -2.1E+01 1.0E-03
67-63-0 Isopropanol 2 0.06 -4.2E+01 2.9E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)0.97 0.0291 -1.0E+03 5.6E-06
75-09-2 Methylene Chloride 10 0.3 1.0E+02 1.3E+02 3.0E-09 4.8E-04
127-18-4 Tetrachloroethylene 3.7 0.111 1.1E+01 8.3E+00 1.0E-08 2.7E-03
76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.5 0.075 -1.0E+03 1.4E-05
75-69-4 Trichlorofluoromethane 2.9 0.087 --
95-63-6 Trimethylbenzene, 1,2,4-4.4 0.132 -1.3E+01 2.1E-03
Cumulative:1.3E-08 6.7E-03
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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-2/SSVP-DUP
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 13 0.13 -2.7E+04 9.6E-0775-15-0 Carbon Disulfide 2.3 0.023 -6.1E+02 7.5E-06110-82-7 Cyclohexane 2.2 0.022 -5.3E+03 8.4E-0775-71-8 Dichlorodifluoromethane 3.6 0.036 -8.8E+01 8.2E-0567-63-0 Isopropanol 2 0.02 -1.8E+02 2.3E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)0.97 0.0097 -4.4E+03 4.4E-07
75-09-2 Methylene Chloride 10 0.1 1.2E+03 5.3E+02 8.2E-11 3.8E-05127-18-4 Tetrachloroethylene 3.7 0.037 4.7E+01 3.5E+01 7.8E-10 2.1E-0476-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.5 0.025 -4.4E+03 1.1E-0675-69-4 Trichlorofluoromethane 2.9 0.029 --95-63-6 Trimethylbenzene, 1,2,4-4.4 0.044 -5.3E+01 1.7E-04
Cumulative:8.7E-10 5.3E-04
All concentrations are in ug/m3
Output Form 3E
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:
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
SSVP-3
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
1
70
80
330
1
250
8
3527
0.3
50
100
19652
2.5
0.71
1
20
350
24
6032
0.07
0.54
1
70
80
2373
0.2
200
6365
0.78
Input Form 1B
Exposure Unit ID: SSVP-3
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SSVP-3
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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
18 67-64-1 Acetone ug/m3
3 110-82-7 Cyclohexane ug/m3
3.3 75-71-8 Dichlorodifluoromethane ug/m3
0.86 123-91-1 Dioxane, 1,4-ug/m3
3.2 67-63-0 Isopropanol ug/m3
1.5 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
9.7 75-09-2 Methylene Chloride ug/m3
4.4 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
1.1 108-38-3 Xylene, m-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are those detected in the SSVP-3 sample
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 4.9E-08 5.2E-03 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 3.6E-09 4.1E-04 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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 18 0.54 -6.5E+03 1.7E-05
110-82-7 Cyclohexane 3 0.09 -1.3E+03 1.4E-05
75-71-8 Dichlorodifluoromethane 3.3 0.099 -2.1E+01 9.5E-04
123-91-1 Dioxane, 1,4-0.86 0.0258 5.6E-01 6.3E+00 4.6E-08 8.2E-04
67-63-0 Isopropanol 3.2 0.096 -4.2E+01 4.6E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.5 0.045 -1.0E+03 8.6E-06
75-09-2 Methylene Chloride 9.7 0.291 1.0E+02 1.3E+02 2.9E-09 4.7E-04
95-63-6 Trimethylbenzene, 1,2,4-4.4 0.132 -1.3E+01 2.1E-03
108-38-3 Xylene, m-1.1 0.033 -2.1E+01 3.2E-04
Cumulative:4.9E-08 5.2E-03
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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 18 0.18 -2.7E+04 1.3E-06110-82-7 Cyclohexane 3 0.03 -5.3E+03 1.1E-0675-71-8 Dichlorodifluoromethane 3.3 0.033 -8.8E+01 7.5E-05123-91-1 Dioxane, 1,4-0.86 0.0086 2.5E+00 2.6E+01 3.5E-09 6.5E-0567-63-0 Isopropanol 3.2 0.032 -1.8E+02 3.7E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.5 0.015 -4.4E+03 6.8E-07
75-09-2 Methylene Chloride 9.7 0.097 1.2E+03 5.3E+02 7.9E-11 3.7E-0595-63-6 Trimethylbenzene, 1,2,4-4.4 0.044 -5.3E+01 1.7E-04108-38-3 Xylene, m-1.1 0.011 -8.8E+01 2.5E-05
Cumulative:3.6E-09 4.1E-04
All concentrations are in ug/m3
Output Form 3E
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:
SSVP-4
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-4
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-4
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
Input Form 1B
Exposure Unit ID: SSVP-4
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
2373
0.2
200
6365
0.78
0.54
1
70
80
20
350
24
6032
0.07
100
19652
2.5
0.71
1
1
70
80
330
1
250
8
3527
0.3
50
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SSVP-4
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-4
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
44 67-64-1 Acetone ug/m3
4 110-82-7 Cyclohexane ug/m3
3.6 75-71-8 Dichlorodifluoromethane ug/m3
3.6 75-35-4 Dichloroethylene, 1,1-ug/m3
3.7 156-60-5 Dichloroethylene, 1,2-trans-ug/m3
3 67-63-0 Isopropanol ug/m3
1.3 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
11 75-09-2 Methylene Chloride ug/m3
3.1 127-18-4 Tetrachloroethylene ug/m3
0.83 108-88-3 Toluene ug/m3
1.9 75-69-4 Trichlorofluoromethane ug/m3
4.3 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are those detected in the SSVP-4 sample
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-4
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 1.2E-08 6.9E-03 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 7.5E-10 5.5E-04 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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-4
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 44 1.32 -6.5E+03 4.1E-05
110-82-7 Cyclohexane 4 0.12 -1.3E+03 1.9E-05
75-71-8 Dichlorodifluoromethane 3.6 0.108 -2.1E+01 1.0E-03
75-35-4 Dichloroethylene, 1,1-3.6 0.108 -4.2E+01 5.2E-04
156-60-5 Dichloroethylene, 1,2-trans-3.7 0.111 --
67-63-0 Isopropanol 3 0.09 -4.2E+01 4.3E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.3 0.039 -1.0E+03 7.5E-06
75-09-2 Methylene Chloride 11 0.33 1.0E+02 1.3E+02 3.3E-09 5.3E-04
127-18-4 Tetrachloroethylene 3.1 0.093 1.1E+01 8.3E+00 8.6E-09 2.2E-03
108-88-3 Toluene 0.83 0.0249 -1.0E+03 4.8E-06
75-69-4 Trichlorofluoromethane 1.9 0.057 --
95-63-6 Trimethylbenzene, 1,2,4-4.3 0.129 -1.3E+01 2.1E-03
Cumulative:1.2E-08 6.9E-03
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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-4
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 44 0.44 -2.7E+04 3.2E-06110-82-7 Cyclohexane 4 0.04 -5.3E+03 1.5E-0675-71-8 Dichlorodifluoromethane 3.6 0.036 -8.8E+01 8.2E-0575-35-4 Dichloroethylene, 1,1-3.6 0.036 -1.8E+02 4.1E-05156-60-5 Dichloroethylene, 1,2-trans-3.7 0.037 --67-63-0 Isopropanol 3 0.03 -1.8E+02 3.4E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.3 0.013 -4.4E+03 5.9E-07
75-09-2 Methylene Chloride 11 0.11 1.2E+03 5.3E+02 9.0E-11 4.2E-05127-18-4 Tetrachloroethylene 3.1 0.031 4.7E+01 3.5E+01 6.6E-10 1.8E-04108-88-3 Toluene 0.83 0.0083 -4.4E+03 3.8E-0775-69-4 Trichlorofluoromethane 1.9 0.019 --95-63-6 Trimethylbenzene, 1,2,4-4.3 0.043 -5.3E+01 1.6E-04
Cumulative:7.5E-10 5.5E-04
All concentrations are in ug/m3
Output Form 3E
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:
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
SSVP-5
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
1
70
80
330
1
250
8
3527
0.3
50
100
19652
2.5
0.71
1
20
350
24
6032
0.07
0.54
1
70
80
2373
0.2
200
6365
0.78
Input Form 1B
Exposure Unit ID: SSVP-5
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SSVP-5
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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
49 67-64-1 Acetone ug/m3
3.2 110-82-7 Cyclohexane ug/m3
3.6 75-71-8 Dichlorodifluoromethane ug/m3
2.7 67-63-0 Isopropanol ug/m3
1.3 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
12 75-09-2 Methylene Chloride ug/m3
3.1 127-18-4 Tetrachloroethylene ug/m3
2 75-69-4 Trichlorofluoromethane ug/m3
4.3 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are those detected in the SSVP-5 sample
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 1.2E-08 6.4E-03 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 7.6E-10 5.0E-04 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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 49 1.47 -6.5E+03 4.5E-05
110-82-7 Cyclohexane 3.2 0.096 -1.3E+03 1.5E-05
75-71-8 Dichlorodifluoromethane 3.6 0.108 -2.1E+01 1.0E-03
67-63-0 Isopropanol 2.7 0.081 -4.2E+01 3.9E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.3 0.039 -1.0E+03 7.5E-06
75-09-2 Methylene Chloride 12 0.36 1.0E+02 1.3E+02 3.6E-09 5.8E-04
127-18-4 Tetrachloroethylene 3.1 0.093 1.1E+01 8.3E+00 8.6E-09 2.2E-03
75-69-4 Trichlorofluoromethane 2 0.06 --
95-63-6 Trimethylbenzene, 1,2,4-4.3 0.129 -1.3E+01 2.1E-03
Cumulative:1.2E-08 6.4E-03
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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-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 49 0.49 -2.7E+04 3.6E-06110-82-7 Cyclohexane 3.2 0.032 -5.3E+03 1.2E-0675-71-8 Dichlorodifluoromethane 3.6 0.036 -8.8E+01 8.2E-0567-63-0 Isopropanol 2.7 0.027 -1.8E+02 3.1E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.3 0.013 -4.4E+03 5.9E-07
75-09-2 Methylene Chloride 12 0.12 1.2E+03 5.3E+02 9.8E-11 4.6E-05127-18-4 Tetrachloroethylene 3.1 0.031 4.7E+01 3.5E+01 6.6E-10 1.8E-0475-69-4 Trichlorofluoromethane 2 0.02 --95-63-6 Trimethylbenzene, 1,2,4-4.3 0.043 -5.3E+01 1.6E-04
Cumulative:7.6E-10 5.0E-04
All concentrations are in ug/m3
Output Form 3E
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:
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
SSVP-6
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-6
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-6
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
1
70
80
330
1
250
8
3527
0.3
50
100
19652
2.5
0.71
1
20
350
24
6032
0.07
0.54
1
70
80
2373
0.2
200
6365
0.78
Input Form 1B
Exposure Unit ID: SSVP-6
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SSVP-6
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-6
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
45 67-64-1 Acetone ug/m3
5.8 75-15-0 Carbon Disulfide ug/m3
3.5 75-71-8 Dichlorodifluoromethane ug/m3
0.91 109-99-9 ~Tetrahydrofuran ug/m3
4.6 591-78-6 Hexanone, 2-ug/m3
6.9 67-63-0 Isopropanol ug/m3
3.2 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
4.8 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
3.9 75-09-2 Methylene Chloride ug/m3
1 108-88-3 Toluene ug/m3
2 75-69-4 Trichlorofluoromethane ug/m3
2 108-38-3 Xylene, m-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are those detected in the SSVP-6 sample
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-6
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 1.2E-09 7.5E-03 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 3.2E-11 6.0E-04 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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-6
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 45 1.35 -6.5E+03 4.2E-05
75-15-0 Carbon Disulfide 5.8 0.174 -1.5E+02 2.4E-04
75-71-8 Dichlorodifluoromethane 3.5 0.105 -2.1E+01 1.0E-03
109-99-9 ~Tetrahydrofuran 0.91 0.0273 -4.2E+02 1.3E-05
591-78-6 Hexanone, 2-4.6 0.138 -6.3E+00 4.4E-03
67-63-0 Isopropanol 6.9 0.207 -4.2E+01 9.9E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)3.2 0.096 -1.0E+03 1.8E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.8 0.144 -6.3E+02 4.6E-05
75-09-2 Methylene Chloride 3.9 0.117 1.0E+02 1.3E+02 1.2E-09 1.9E-04
108-88-3 Toluene 1 0.03 -1.0E+03 5.8E-06
75-69-4 Trichlorofluoromethane 2 0.06 --
108-38-3 Xylene, m-2 0.06 -2.1E+01 5.8E-04
Cumulative:1.2E-09 7.5E-03
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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-6
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 45 0.45 -2.7E+04 3.3E-0675-15-0 Carbon Disulfide 5.8 0.058 -6.1E+02 1.9E-0575-71-8 Dichlorodifluoromethane 3.5 0.035 -8.8E+01 8.0E-05109-99-9 ~Tetrahydrofuran 0.91 0.0091 -1.8E+03 1.0E-06591-78-6 Hexanone, 2-4.6 0.046 -2.6E+01 3.5E-0467-63-0 Isopropanol 6.9 0.069 -1.8E+02 7.9E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)3.2 0.032 -4.4E+03 1.5E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.8 0.048 -2.6E+03 3.7E-0675-09-2 Methylene Chloride 3.9 0.039 1.2E+03 5.3E+02 3.2E-11 1.5E-05108-88-3 Toluene 1 0.01 -4.4E+03 4.6E-0775-69-4 Trichlorofluoromethane 2 0.02 --108-38-3 Xylene, m-2 0.02 -8.8E+01 4.6E-05
Cumulative:3.2E-11 6.0E-04
All concentrations are in ug/m3
Output Form 3E
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:
SSVP-7
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-7
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-7
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
Input Form 1B
Exposure Unit ID: SSVP-7
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
2373
0.2
200
6365
0.78
0.54
1
70
80
20
350
24
6032
0.07
100
19652
2.5
0.71
1
1
70
80
330
1
250
8
3527
0.3
50
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: SSVP-7
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-7
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
68 67-64-1 Acetone ug/m3
0.64 71-43-2 Benzene ug/m3
3.2 75-71-8 Dichlorodifluoromethane ug/m3
0.94 109-99-9 ~Tetrahydrofuran ug/m3
2.5 110-54-3 Hexane, N-ug/m3
4.5 591-78-6 Hexanone, 2-ug/m3
11 67-63-0 Isopropanol ug/m3
2.5 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
4.7 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
8.7 75-09-2 Methylene Chloride ug/m3
6.4 91-20-3 ~Naphthalene ug/m3
2.1 108-88-3 Toluene ug/m3
2.4 108-38-3 Xylene, m-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are those detected in the SSVP-7 sample
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-7
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 2.4E-06 7.0E-02 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.8E-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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-7
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 68 2.04 -6.5E+03 6.3E-05
71-43-2 Benzene 0.64 0.0192 3.6E-01 6.3E+00 5.3E-08 6.1E-04
75-71-8 Dichlorodifluoromethane 3.2 0.096 -2.1E+01 9.2E-04
109-99-9 ~Tetrahydrofuran 0.94 0.0282 -4.2E+02 1.4E-05
110-54-3 Hexane, N-2.5 0.075 -1.5E+02 1.0E-04
591-78-6 Hexanone, 2-4.5 0.135 -6.3E+00 4.3E-03
67-63-0 Isopropanol 11 0.33 -4.2E+01 1.6E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)2.5 0.075 -1.0E+03 1.4E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.7 0.141 -6.3E+02 4.5E-05
75-09-2 Methylene Chloride 8.7 0.261 1.0E+02 1.3E+02 2.6E-09 4.2E-04
91-20-3 ~Naphthalene 6.4 0.192 8.3E-02 6.3E-01 2.3E-06 6.1E-02
108-88-3 Toluene 2.1 0.063 -1.0E+03 1.2E-05
108-38-3 Xylene, m-2.4 0.072 -2.1E+01 6.9E-04
Cumulative:2.4E-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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: SSVP-7
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 68 0.68 -2.7E+04 5.0E-0671-43-2 Benzene 0.64 0.0064 1.6E+00 2.6E+01 4.1E-09 4.9E-0575-71-8 Dichlorodifluoromethane 3.2 0.032 -8.8E+01 7.3E-05109-99-9 ~Tetrahydrofuran 0.94 0.0094 -1.8E+03 1.1E-06110-54-3 Hexane, N-2.5 0.025 -6.1E+02 8.2E-06591-78-6 Hexanone, 2-4.5 0.045 -2.6E+01 3.4E-0467-63-0 Isopropanol 11 0.11 -1.8E+02 1.3E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)2.5 0.025 -4.4E+03 1.1E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.7 0.047 -2.6E+03 3.6E-0675-09-2 Methylene Chloride 8.7 0.087 1.2E+03 5.3E+02 7.1E-11 3.3E-0591-20-3 ~Naphthalene 6.4 0.064 3.6E-01 2.6E+00 1.8E-07 4.9E-03108-88-3 Toluene 2.1 0.021 -4.4E+03 9.6E-07108-38-3 Xylene, m-2.4 0.024 -8.8E+01 5.5E-05
Cumulative:1.8E-07 5.6E-03
All concentrations are in ug/m3
Output Form 3E
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:
Site-Wide Worst Case for Future Commercial Use
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
Input Form 1B
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
2373
0.2
200
6365
0.78
0.54
1
70
80
20
350
24
6032
0.07
100
19652
2.5
0.71
1
1
70
80
330
1
250
8
3527
0.3
50
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
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
68 67-64-1 Acetone ug/m3
0.64 71-43-2 Benzene ug/m3
5.8 75-15-0 Carbon Disulfide ug/m3
3 110-82-7 Cyclohexane ug/m3
3.6 75-71-8 Dichlorodifluoromethane ug/m3
1 123-91-1 Dioxane, 1,4-ug/m3
0.94 109-99-9 ~Tetrahydrofuran ug/m3
2.5 110-54-3 Hexane, N-ug/m3
4.6 591-78-6 Hexanone, 2-ug/m3
11 67-63-0 Isopropanol ug/m3
3.2 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
4.8 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m3
10 75-09-2 Methylene Chloride ug/m3
6.4 91-20-3 ~Naphthalene ug/m3
3.7 127-18-4 Tetrachloroethylene ug/m3
2.1 108-88-3 Toluene ug/m3
2.5 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3
5.2 79-01-6 Trichloroethylene ug/m3
2.9 75-69-4 Trichlorofluoromethane ug/m3
4.4 95-63-6 Trimethylbenzene, 1,2,4-ug/m3
2.4 108-38-3 Xylene, m-ug/m3
Input Form 2D
Soil Gas Exposure Point Concentration Table
Concentrations provided are the maximum detections between each sub-slab soil vapor sample collected in an area subject to future commercial use. These include: SSVP-1, SSVP-2, SSVP-3, SSVP-6, and SSVP-7.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
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 2.8E-06 1.5E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 2.0E-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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
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 68 2.04 -6.5E+03 6.3E-05
71-43-2 Benzene 0.64 0.0192 3.6E-01 6.3E+00 5.3E-08 6.1E-04
75-15-0 Carbon Disulfide 5.8 0.174 -1.5E+02 2.4E-04
110-82-7 Cyclohexane 3 0.09 -1.3E+03 1.4E-05
75-71-8 Dichlorodifluoromethane 3.6 0.108 -2.1E+01 1.0E-03
123-91-1 Dioxane, 1,4-1 0.03 5.6E-01 6.3E+00 5.3E-08 9.6E-04
109-99-9 ~Tetrahydrofuran 0.94 0.0282 -4.2E+02 1.4E-05
110-54-3 Hexane, N-2.5 0.075 -1.5E+02 1.0E-04
591-78-6 Hexanone, 2-4.6 0.138 -6.3E+00 4.4E-03
67-63-0 Isopropanol 11 0.33 -4.2E+01 1.6E-03
78-93-3 Methyl Ethyl Ketone (2-Butanone)3.2 0.096 -1.0E+03 1.8E-05
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.8 0.144 -6.3E+02 4.6E-05
75-09-2 Methylene Chloride 10 0.3 1.0E+02 1.3E+02 3.0E-09 4.8E-04
91-20-3 ~Naphthalene 6.4 0.192 8.3E-02 6.3E-01 2.3E-06 6.1E-02
127-18-4 Tetrachloroethylene 3.7 0.111 1.1E+01 8.3E+00 1.0E-08 2.7E-03
108-88-3 Toluene 2.1 0.063 -1.0E+03 1.2E-05
76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.5 0.075 -1.0E+03 1.4E-05
79-01-6 Trichloroethylene 5.2 0.156 4.8E-01 4.2E-01 3.3E-07 7.5E-02
75-69-4 Trichlorofluoromethane 2.9 0.087 --
95-63-6 Trimethylbenzene, 1,2,4-4.4 0.132 -1.3E+01 2.1E-03
108-38-3 Xylene, m-2.4 0.072 -2.1E+01 6.9E-04
Cumulative:2.8E-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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Commercial Use
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 68 0.68 -2.7E+04 5.0E-0671-43-2 Benzene 0.64 0.0064 1.6E+00 2.6E+01 4.1E-09 4.9E-0575-15-0 Carbon Disulfide 5.8 0.058 -6.1E+02 1.9E-05110-82-7 Cyclohexane 3 0.03 -5.3E+03 1.1E-0675-71-8 Dichlorodifluoromethane 3.6 0.036 -8.8E+01 8.2E-05123-91-1 Dioxane, 1,4-1 0.01 2.5E+00 2.6E+01 4.1E-09 7.6E-05109-99-9 ~Tetrahydrofuran 0.94 0.0094 -1.8E+03 1.1E-06110-54-3 Hexane, N-2.5 0.025 -6.1E+02 8.2E-06591-78-6 Hexanone, 2-4.6 0.046 -2.6E+01 3.5E-0467-63-0 Isopropanol 11 0.11 -1.8E+02 1.3E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)3.2 0.032 -4.4E+03 1.5E-06
108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.8 0.048 -2.6E+03 3.7E-0675-09-2 Methylene Chloride 10 0.1 1.2E+03 5.3E+02 8.2E-11 3.8E-0591-20-3 ~Naphthalene 6.4 0.064 3.6E-01 2.6E+00 1.8E-07 4.9E-03127-18-4 Tetrachloroethylene 3.7 0.037 4.7E+01 3.5E+01 7.8E-10 2.1E-04108-88-3 Toluene 2.1 0.021 -4.4E+03 9.6E-0776-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.5 0.025 -4.4E+03 1.1E-0679-01-6 Trichloroethylene 5.2 0.052 3.0E+00 1.8E+00 1.7E-08 5.9E-0375-69-4 Trichlorofluoromethane 2.9 0.029 --95-63-6 Trimethylbenzene, 1,2,4-4.4 0.044 -5.3E+01 1.7E-04108-38-3 Xylene, m-2.4 0.024 -8.8E+01 5.5E-05
Cumulative:2.0E-07 1.2E-02
All concentrations are in ug/m3
Output Form 3E
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:
Site-Wide Worst Case for Future Residential Use
North Carolina Department of Environmental Quality
Risk Calculator
Rite Aid Brownfields Site
1730 Statesville Avenue, Charlotte, North Carolina
Brownfields
20050-16-060
July 2020
May 2020 EPA RSL Table
1/28/2021
Prepared By:Sean Horgan
Hart & Hickman
North Carolina DEQ Risk Calculator
Table of Contents
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
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 Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Target Cancer Risk (individual)1.0E-06
Target Cancer Risk (cumulative)1.0E-04
Target Hazard Index (individual)2.0E-01
Target Hazard Index (cumulative)1.0E+00
Lifetime (LT) (years)70
Body Weight (BW) (kg)15
Exposure Duration (ED) (yr)6
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)2373
Soil Adherence Factor (AF) (mg/cm2)0.2
Soil Ingestion Rate (IRS) (mg/day)200
Skin Surface Area - Water Exposure (SAw) (cm2)6365
Water Ingestion Rate (IRW) (L/d)0.78
Water Exposure Time (ETevent) (hr/event)0.54
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)20
Exposure Frequency (EF) (d/yr)350
Exposure Time (ET) (hr)24
Skin Surface Area - Soil Exposure (SAs) (cm2)6032
Soil Adherence Factor (AF) (mg/cm2)0.07
Soil Ingestion Rate (IRS) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)2.5
Water Exposure Time (ETevent) (hr/event)0.71
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Exposure Duration (ED) (yr)25
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.12
Soil Ingestion Rate (IR) (mg/day)100
Skin Surface Area - Water Exposure (SAw) (cm2)19652
Water Ingestion Rate (IRW) (L/d)0.83
Water Exposure Time (ETevent) (hr/event)0.67
Water Event Frequency (EV) (events/day)1
Lifetime (LT) (years)70
Body Weight (BW) (kg)80
Working Weeks (EW) (wk/yr)50
Exposure Duration (ED) (yr)1
Exposure Frequency (EF) (d/yr)250
Exposure Time (ET) (hr)8
Skin Surface Area - Soil Exposure (SAs) (cm2)3527
Soil Adherence Factor (AF) (mg/cm2)0.3
Soil Ingestion Rate (IR) (mg/day)330
Non-Residential Worker
Construction Worker
70
80
25
250
8
3527
0.12
100
19652
0.83
0.67
Input Form 1B
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
Residential Child
General
Residential Adult
Default Value
1.0E-06
1.0E-04
2.0E-01
1.0E+00
70
15
6
350
24
2373
0.2
200
6365
0.78
0.54
1
70
80
20
350
24
6032
0.07
100
19652
2.5
0.71
1
1
70
80
330
1
250
8
3527
0.3
50
North Carolina DEQ Risk Calculator
Exposure Factors and Target Risks
Version Date: July 2020
Basis: May 2020 EPA RSL TableSite ID: 20050-16-060
Exposure Parameter Site Specific Value Justification
Input Form 1B
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
Default Value
Recreator Trespasser
Lifetime (LT) (years)70 NA 70
Averaging Time (AT) (days/yr)365 NA 365
Body Weight (BW) (kg)15 NA 15
Exposure Duration 0-2 (ED) (yr)2 NA 2
Exposure Duration 2-6 (ED) (yr)4 NA 4
Exposure Frequency (EF) (d/yr)195 NA 195
Exposure Time (ET) (hr)2 NA 2
Skin Surface Area - Soil Exposure (SAs) (cm2)2373 NA 2373
Soil Adherence Factor (AF) (mg/cm2)0.2 NA 0.2
Soil Ingestion Rate (IRS) (mg/day)200 NA 200
Skin Surface Area - Water Exposure (SAw) (cm2)6365 NA 6365
Water Ingestion Rate (IRW) (L/hr)0.124 NA 0.124
Water Exposure Time (ETevent) (hr/event)2 NA 2
Water Event Frequency (EV) (events/day)1 NA 1
Recreator Trespasser
Lifetime (LT) (years)70 70 70
Body Weight (BW) (kg)80 45 80
Exposure Duration 6-16 (ED) (yr)10 10 10
Exposure Duration 16-26 (ED) (yr)10 0 10
Exposure Frequency (EF) (d/yr)195 90 195
Exposure Time (ET) (hr)2 2 2
Skin Surface Area - Soil Exposure (SAs) (cm2)6032 6032 6032
Soil Adherence Factor (AF) (mg/cm2)0.07 0.2 0.07
Soil Ingestion Rate (IRS) (mg/day)100 200 100
Skin Surface Area - Water Exposure (SAw) (cm2)19652 19652 19652
Water Ingestion Rate (IRW) (L/hr)0.0985 0.071 0.0985
Water Exposure Time (ETevent) (hr/event)2 2 2
Water Event Frequency (EV) (events/day)1 1 1
User Defined Child
User Defined Adult
North Carolina DEQ Risk Calculator
Exposure Point Concentrations
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
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
49 67-64-1 Acetone ug/m3
5.1 100-44-7 Benzyl Chloride ug/m3
12 75-27-4 Bromodichloromethane ug/m3
10 75-15-0 Carbon Disulfide ug/m3
70 67-66-3 Chloroform ug/m3
4 110-82-7 Cyclohexane ug/m3
2.1 124-48-1 Dibromochloromethane ug/m3
1.3 106-46-7 Dichlorobenzene, 1,4-ug/m3
4.1 75-71-8 Dichlorodifluoromethane ug/m3
3.6 75-35-4 Dichloroethylene, 1,1-ug/m3
3.7 156-60-5 Dichloroethylene, 1,2-trans-ug/m3
1 109-99-9 ~Tetrahydrofuran ug/m3
4.2 67-63-0 Isopropanol ug/m3
1.3 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3
12 75-09-2 Methylene Chloride ug/m3
4.3 100-42-5 Styrene ug/m3
28 127-18-4 Tetrachloroethylene ug/m3
1.8 108-88-3 Toluene ug/m3
6.3 75-69-4 Trichlorofluoromethane ug/m3
5.1 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
Concentrations provided are the maximum detections between each sub-slab soil vapor sample collected in an area subject to future residential use. These include: SGP-1, SSVP-4, and SSVP-5.
North Carolina DEQ Risk Calculator
Risk for Individual Pathways Output Form 1A
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
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-05 1.9E-01 NO
Indoor Air NC NC NC
Groundwater to Indoor Air NC NC NC
Soil Gas to Indoor Air 1.9E-06 1.5E-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: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
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 49 1.47 -6.5E+03 4.5E-05
100-44-7 Benzyl Chloride 5.1 0.153 5.7E-02 2.1E-01 2.7E-06 1.5E-01
75-27-4 Bromodichloromethane 12 0.36 7.6E-02 -4.7E-06
75-15-0 Carbon Disulfide 10 0.3 -1.5E+02 4.1E-04
67-66-3 Chloroform 70 2.1 1.2E-01 2.0E+01 1.7E-05 2.1E-02
110-82-7 Cyclohexane 4 0.12 -1.3E+03 1.9E-05
124-48-1 Dibromochloromethane 2.1 0.063 --
106-46-7 Dichlorobenzene, 1,4-1.3 0.039 2.6E-01 1.7E+02 1.5E-07 4.7E-05
75-71-8 Dichlorodifluoromethane 4.1 0.123 -2.1E+01 1.2E-03
75-35-4 Dichloroethylene, 1,1-3.6 0.108 -4.2E+01 5.2E-04
156-60-5 Dichloroethylene, 1,2-trans-3.7 0.111 --
109-99-9 ~Tetrahydrofuran 1 0.03 -4.2E+02 1.4E-05
67-63-0 Isopropanol 4.2 0.126 -4.2E+01 6.0E-04
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.3 0.039 -1.0E+03 7.5E-06
75-09-2 Methylene Chloride 12 0.36 1.0E+02 1.3E+02 3.6E-09 5.8E-04
100-42-5 Styrene 4.3 0.129 -2.1E+02 1.2E-04
127-18-4 Tetrachloroethylene 28 0.84 1.1E+01 8.3E+00 7.8E-08 2.0E-02
108-88-3 Toluene 1.8 0.054 -1.0E+03 1.0E-05
75-69-4 Trichlorofluoromethane 6.3 0.189 --
95-63-6 Trimethylbenzene, 1,2,4-5.1 0.153 -1.3E+01 2.4E-03
108-38-3 Xylene, m-1.8 0.054 -2.1E+01 5.2E-04
Cumulative:2.5E-05 1.9E-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
DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air
Version Date: July 2020
Basis: May 2020 EPA RSL Table
Site ID: 20050-16-060
Exposure Unit ID: Site-Wide Worst Case for Future Residential Use
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 49 0.49 -2.7E+04 3.6E-06100-44-7 Benzyl Chloride 5.1 0.051 2.5E-01 8.8E-01 2.0E-07 1.2E-0275-27-4 Bromodichloromethane 12 0.12 3.3E-01 -3.6E-0775-15-0 Carbon Disulfide 10 0.1 -6.1E+02 3.3E-0567-66-3 Chloroform 70 0.7 5.3E-01 8.6E+01 1.3E-06 1.6E-03110-82-7 Cyclohexane 4 0.04 -5.3E+03 1.5E-06124-48-1 Dibromochloromethane 2.1 0.021 --106-46-7 Dichlorobenzene, 1,4-1.3 0.013 1.1E+00 7.0E+02 1.2E-08 3.7E-0675-71-8 Dichlorodifluoromethane 4.1 0.041 -8.8E+01 9.4E-0575-35-4 Dichloroethylene, 1,1-3.6 0.036 -1.8E+02 4.1E-05156-60-5 Dichloroethylene, 1,2-trans-3.7 0.037 --109-99-9 ~Tetrahydrofuran 1 0.01 -1.8E+03 1.1E-0667-63-0 Isopropanol 4.2 0.042 -1.8E+02 4.8E-05
78-93-3 Methyl Ethyl Ketone (2-Butanone)1.3 0.013 -4.4E+03 5.9E-07
75-09-2 Methylene Chloride 12 0.12 1.2E+03 5.3E+02 9.8E-11 4.6E-05100-42-5 Styrene 4.3 0.043 -8.8E+02 9.8E-06127-18-4 Tetrachloroethylene 28 0.28 4.7E+01 3.5E+01 5.9E-09 1.6E-03108-88-3 Toluene 1.8 0.018 -4.4E+03 8.2E-0775-69-4 Trichlorofluoromethane 6.3 0.063 --95-63-6 Trimethylbenzene, 1,2,4-5.1 0.051 -5.3E+01 1.9E-04108-38-3 Xylene, m-1.8 0.018 -8.8E+01 4.1E-05
Cumulative:1.9E-06 1.5E-02
All concentrations are in ug/m3
Output Form 3E
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