26004_Dilworth Auto II EMP_20211008.pdf

Environmental Management Plan
Dilworth Auto Service
120 E. Kingston Avenue;
1700, 1708, 1714, 1720, and 1728 South Blvd;
101, 105, and 115 East Blvd
Charlotte, North Carolina
Brownfields Project No. 24051-20-060
H&H Job No. WPP-011
October 8, 2021
#C-1269 Engineering
#245 Geology

CONTENTS
Completed EMP Template Form

Tables

Table 1 Summary of Soil Analytical Results
Table 2 Summary of Groundwater Analytical Results
Table 3 Summary of Soil Gas Analytical Results
Figures

Figure 1 Site Location Map
Figure 2 Site and Sample Location Map

Appendices

Appendix A Site Redevelopment Plan
Appendix B Grading Plan and Cut/Fill Analysis
Appendix C Building Foundation Plans

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EMP Version 2, January 2021
NORTH CAROLINA BROWNFIELDS PROGRAM
ENVIRONMENTAL MANAGEMENT PLAN

This form is to be used to prepare an Environmental Management Plan (EMP) for projects in
the North Carolina Brownfields Program at the direction of a Brownfields project manager.

The EMP is a typical requirement of a Brownfields Agreement (BFA). Its purpose is to clarify
actions to be taken during the demolition and construction at Brownfields properties in an
effort to avoid delays in the event of the discovery of new contamination sources or other
environmental conditions. The EMP provides a means to document redevelopment plans and
environmental data for each applicable environmental medium to inform regulatory-compliant
decision-making at the site. As much detail as possible should be included in the EMP,
including contingency planning for unknowns. Consult your project manager if you have
questions.

Prospective Developers and/or their consultants must complete and submit this form and all
pertinent attachments, see checklist below, to their Brownfields project manager prior to any
earthmoving or other development-related activities that have the potential to disturb soil at
the Brownfields Property, including demolition. For the resultant EMP to be valid for use, it
must be completed, reviewed by the program, signed by all parties working on the project,
and approved by the Brownfields project manager. Failure to comply with the requirements of
the EMP could jeopardize project eligibility, or in the event of a completed agreement, be
cause for a reopener.

The EMP is valid only for the scope of work described herein and must be updated to be
applicable for new phases of redevelopment or after significant changes in applicable
regulatory guidance.

Voluntary Metrics Tab
The NC Brownfields Program updates estimated capital investment (from the Brownfields Property Application) and estimated jobs created (from the Brownfields Agreement) whenever
possible. As a voluntary measure, you may opt to complete the below information for capital
investment and jobs created as estimated by your final redevelopment plans for the Brownfields Property: 1. Estimated capital investment in redevelopment project: Click or tap here to enter text.
2. Estimated jobs created:
a. Construction Jobs: Click or tap here to enter text.
b. Full Time Post-Redevelopment Jobs: Click or tap here to enter text.

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Table of Contents
NORTH CAROLINA BROWNFIELDS PROGRAM ENVIRONMENTAL MANAGEMENT PLAN ........................... 1
GENERAL INFORMATION ........................................................................................................................ 4
COMMUNICATIONS ................................................................................................................................ 4
NOTIFICATIONS TO THE BROWNFIELDS PROGRAM ............................................................................... 5
REDEVELOPMENT PLANS ........................................................................................................................ 5
CONTAMINATED MEDIA ......................................................................................................................... 7
PART 1. Soil ......................................................................................................................................... 8
PART 2. GROUNDWATER ................................................................................................................. 20
PART 3. SURFACE WATER .................................................................................................................. 22
PART 4. SEDIMENT ............................................................................................................................ 23
PART 5. SOIL VAPOR ......................................................................................................................... 23
PART 6. SUB-SLAB SOIL VAPOR ........................................................................................................ 24
PART 7. INDOOR AIR ......................................................................................................................... 25
VAPOR INTRUSION MITIGATION SYSTEM ............................................................................................. 26
CONTINGENCY PLAN – encountering unknown tanks, drums, or other waste materials ..................... 26
POST-REDEVELOPMENT REPORTING..................................................................................................... 28
APPROVAL SIGNATURES ....................................................................................................................... 30

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So that the EMP provides value in protecting brownfields eligibility and public health, the
preparer shall ensure that the following steps have been completed prior to submitting the
EMP for review. Any EMP prepared without completing these steps is premature.

☒ Site sampling and assessment that meets Brownfields’ objectives is complete and has
been reviewed and approved by the Brownfields Project Manager.
☒ Specific redevelopment plans, even if conceptual, have been developed for the project,
submitted and reviewed by the Brownfields Project Manager.

Please submit, along with the completed EMP form, the following attachments, as relevant
and applicable to the proposed redevelopment:

☒ A set of redevelopment plans, including architectural/engineering plans, if available; if
not conceptual plans may suffice if updated when detailed plans are drafted.

☐ A figure overlaying redevelopment plans on a map of the extent of contamination for
each media.

☒ Site grading plans that include a cut and fill analysis.

☐ A figure showing the proposed location and depth of impacted soil that would remain
on site after construction grading.

☐ Any necessary permits for redevelopment (i.e. demolition, etc.).

☒ A detailed construction schedule that includes timing and phases of construction.
Please see Item 7b on Page 6.

☒ Tabulated data summaries for each impacted media (i.e. soil, groundwater, soil gas,
etc.) applicable to the proposed redevelopment.

☒ Figures with the sampling locations and contamination extents for each impacted media
applicable to the proposed redevelopment.

☐ A full final grade sampling and analysis plan, if the redevelopment plan is final.

☐ If known, information about each proposed potential borrow soil source, such as aerial
photos, historic site maps, historic Sanborn maps, a site history, necessary for
brownfields approval.

☐ Information and, analytical data if required, for quarries, or other borrow sources,
detailing the type of material proposed for importation to the Brownfields Property.

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☐ A work plan for the sampling and analysis of soil to be brought onto the Brownfields
Property. Refer to Issue Resolution 15 in Brownfields Program Guidelines.

☐ A map of the Brownfields Property showing the location of soils proposed for export
and sampling data from those areas.

☐ If a Vapor Mitigation System is required by the Brownfields Program, the Vapor
Intrusion Mitigation System (VIMS) plan will be signed and sealed by a NC Professional
Engineer. The VIMS Plan may also be submitted under separate cover.

GENERAL INFORMATION

Date: 10/8/2021 Revision Date (if applicable): Click or tap to enter a date.

Brownfields Assigned Project Name: Dilworth Auto Service

Brownfields Project Number: 24051-20-060

Brownfields Property Address: 120 East Kingston Ave; 1700, 1708, 1714, 1720, and 1728 South Blvd;
and 101, 105, and 115 East Blvd, Charlotte, Mecklenburg County, North Carolina (Figure 1)

Brownfields Property Area (acres): 2.3 acres
Is Brownfields Property Subject to RCRA Permit?.......................☐ Yes ☒ No
If yes enter Permit No.: Click or tap here to enter text.
Is Brownfields Property Subject to a Solid Waste Permit….……..☐ Yes ☒ No
If yes, enter Permit No.: Click or tap here to enter text.

COMMUNICATIONS

A copy of this EMP shall be distributed to all the parties below as well as any contractors or site workers
that may be exposed to site vapors, soil, groundwater, and/or surface water. Additionally, a copy of the
EMP shall be maintained at the Brownfields Property during redevelopment activities. NOTE, THE EMP DOES NOT TAKE THE PLACE OF A SITE-SPECIFIC HEALTH AND SAFETY PLAN.

Prospective Developer (PD): White Point Partners, LLC
Contact Person: Jay Levell
Phone Numbers: Office: 704-412-7112 Mobile: [phone]
Email: [e-mail]

Contractor for PD: Greystar Development and Construction, LP
Contact Person: Chris Hustek
Phone Numbers: Office: 704-332-0404 Mobile: Click or tap here to enter text.

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Email: [e-mail]

Environmental Consultant: Hart & Hickman, PC
Contact Person: Bo Cappleman
Phone Numbers: Office: 704-586-0007 Mobile: [phone]
Email: [e-mail]

Brownfields Program Project Manager: Bill Schmithorst
Phone Numbers: Office: 919-707-8159 Mobile: [phone]
Email: [e-mail]; [e-mail]

Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch,
Hazardous Waste, Solid Waste):
Not Applicable

NOTIFICATIONS TO THE BROWNFIELDS PROGRAM

Written advance Notification Times to Brownfields Project Manager: Check each box to accept
minimum advance notice periods (in calendar days) for each type of onsite task:

On-site assessment or remedial activities:……………………………………….…… 10 days Prior ☒

Construction or grading start:……………………………………….………………………. 10 days Prior ☒

Discovery of stained soil, odors, USTs, buried drums or waste, landfill, or other signs of previously
unknown contamination: ……………………………….……………………………………. Within 48 hours ☒
Implementation of emergency actions (e.g. dewatering, flood or soil erosion control measures in
area of contamination, ventilation of work zones):…………….……….……… Within 48 hours ☒

Installation of mitigation systems:………………………….………………….……….. 10 days Prior ☒

Other notifications as required by local, state or federal agencies to implement redevelopment
activities: (as applicable): ……………………….…………………………………………..… Within 30 days ☒

REDEVELOPMENT PLANS

1) Type of Redevelopment (check all that apply):
☒Residential ☐Recreational ☐Institutional ☒Commercial ☒Office ☒Retail ☐Industrial
☒Other specify:
Parking

2) Check the following activities that will be conducted prior to commencing earth-moving activities

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at the site:
☒ Review of historic maps (Sanborn Maps, facility maps)
☒ Conducting geophysical surveys to evaluate the location of suspect UST, fuel lines, utility
lines, etc.
☐ Interviews with employees/former employees/facility managers/neighbors

3) Summary of Redevelopment Plans (MANDATORY: attach detailed plans or conceptual plans, if detailed plans are not available. EMP review without such information would be premature):
Provide brief summary of redevelopment plans, including demolition, removal of building
slabs/pavement, grading plans and planned construction of new structures:
Phase I includes demolition of the existing buildings and construction of a 24-story mixed-use
retail and apartment building in the eastern portion of the Site. The building will contain one
story of retail space (ground level), an 8-story parking garage (Levels 2 through 9), and 324
apartments (Levels 10 through 24). A private two-way street will be constructed on the
northwestern side of the building. Phase II includes demolition of the existing buildings and
construction of multi-level office buildings in the southern and western portions of the Site. A
Site Redevelopment Plan is included as Appendix A.

4) Do plans include demolition of structure(s)?:
☒ Yes ☐ No ☐ Unknown
☒ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements, including without limitation those related to lead and asbestos
abatement that are administered by the Health Hazards Control Unit within the Division of Public
Health of the North Carolina Department of Health and Human Services. If available, please
provide a copy of your demolition permit.

5) Are sediment and erosion control measures required by federal, state, or local regulations?
☒ Yes ☐ No ☐ Unknown
☒ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements. If soil disturbance is necessary to install sediment and erosion
control measures, they may not begin until this EMP is approved.

6) Which category of risk-based screening level is used or is anticipated to be specified in the
Brownfields Agreement? Note: If children frequent the property, residential screening levels shall
be cited in the Brownfields Agreement for comparison purposes.
☒ Residential ☐ Non-Residential or Industrial/Commercial
7) Schedule for Redevelopment (attach construction schedule):
a) Construction start date: 12/1/2021

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b) Anticipated duration (specify activities during each phase):
Redevelopment activities are expected to take 24 months or more to complete. The
estimated schedule for primary redevelopment tasks are outlined as follows:
Existing building demolition: December 2021 to January 2022
Foundation and auger cast pile construction: February to June 2022
Building construction: May 2022 to December 2023

c) Additional phases planned? ☒ Yes ☐ No

If yes, specify the start date and/or activities if known:
Start Date: unknown
Planned Activity:
An additional redevelopment phase (Phase II) is planned for the southern and western
portions of the Site. The specific scope of development is unknown at this time but may
include two multi-level office buildings. A revised EMP will be submitted for DEQ approval
following the completion of a proposed redevelopment plan by the PD.
Start Date: Click or tap to enter a date.
Planned Activity:
Click or tap here to enter text.

Start Date: Click or tap to enter a date.
Planned Activity:
Click or tap here to enter text. d) Provide the planned date of occupancy for new buildings: Q1 2024

CONTAMINATED MEDIA
Please fill out the sections below, using detailed site plans, if available, or estimate using known areas
of contaminated soil and a conceptual redevelopment plan. Provide a figure overlaying new
construction onto figure showing contaminated soil and groundwater locations.

1) Contaminated Media on the Brownfields Property
Part 1. Soil:……………………………………….……………. ☒ Yes ☐ No ☐ Suspected ☐ Unknown
Part 2. Groundwater:.……………………….……..……. ☒ Yes ☐ No ☐ Suspected ☐ Unknown
Part 3. Surface Water:.……………...……..…………… ☐ Yes ☒ No ☐ Suspected ☐ Unknown
Part 4. Sediment:.……………...……..…………………… ☐ Yes ☒ No ☐ Suspected ☐ Unknown
Part 5. Soil Vapor:…..…………...……..…………………. ☒ Yes ☐ No ☐ Suspected ☐ Unknown
Part 6. Sub-Slab Soil Vapor:……...……..…………….. ☐ Yes ☐ No ☐ Suspected ☒ Unknown
Part 7. Indoor Air:...……..…………………………………. ☐ Yes ☐ No ☐ Suspected ☒ Unknown

2) For the Area of Proposed Redevelopment on the Brownfields Property, attach tabulated data

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summaries for each impacted media and figure(s) with sample locations.

PART 1. Soil
1) Known or suspected contaminants in soil (list general groups of contaminants):
A tabular summary of soil analytical data in comparison to the June 2021 North Carolina
Department of Environmental Quality (DEQ) Protection of Groundwater, Residential, and
Industrial/Commercial Preliminary Soil Remediation Goals (PSRGs) is included as Table 1. Soil
sample locations are shown on Figure 2. A brief summary of the results is provided below.

The volatile organic compounds (VOCs) benzene, naphthalene, m&p-xylenes, and o-xylene were
detected in soil sample SB-1 (8-10) at concentrations above the Protection of Groundwater
PSRGs. The naphthalene concentration also exceeds the Residential and Industrial/Commercial
PSRGs. The concentration of ethylbenzene in SB-1 (8-10) exceeds the Residential PSRG. The
concentration of benzene detected in SB-2 (8-10) exceeds the Protection of Groundwater PSRG.
The concentration of tetrachloroethylene detected in SB-10 (1-3) slightly exceeds the Protection
of Groundwater PSRG. Benzene, n-butylbenzene, sec-butylbenzene, ethylbenzene,
isopropylbenzene, naphthalene, n-propylbenzene, 1,2,4-trimethylbenzene, 1,3,5-
trimethylbenzene, m&p-xylenes, and o-xylene were detected in soil sample SB-19 (11-13) and/or
its duplicate Soil-Dup-1 at concentrations above the Protection of Groundwater PSRGs. The
concentrations of benzene, ethylbenzene, and naphthalene also exceed the Residential PSRGs,
and the ethylbenzene and naphthalene concentrations exceed the Industrial/Commercial PSRGs.
The 1,2,4-trimethylbenzene concentration in Soil-Dup-1 also exceeds the Residential PSRG. No
other VOCs have been detected at concentrations exceeding PSRGs in soil samples collected at
the Site.

No semi-VOCs (SVOCs) have been detected above Industrial/Commercial PSRGs in soil samples
collected at the Site. Naphthalene and 2-methylnaphthalene were detected in soil sample SB-1
(8-10) at concentrations above the Protection of Groundwater PSRGs. The naphthalene
concentration also exceeds the Residential PSRG. The reported concentrations of 1-
methylnaphthalene, 2-methylnaphthalene, and naphthalene exceed the Protection of
Groundwater PSRGs in sample SB-19 (11-13) and/or its duplicate, Soil-Dup-1. The concentrations
of naphthalene detected in samples SB-19 (11-13)/Soil-Dup-1 also exceed the Residential PSRG.

Hexavalent chromium was detected above the Residential PSRG in samples SB-1 (1-3), SB-1 (3-5),
SB-3 (1-3), SB-4 (3-5), SB-6 (1-3), SB-7 (1-3), SB-7 (3-5), SB-8 (3-5), SB-10 (1-3), SB-11 (3-5), SB-12
(1-3), SB-16 (1-3), and SB-19 (11-13) and its duplicate Soil-Dup-1. However, based on the
relatively low-level detections of hexavalent chromium, the even distribution of hexavalent
chromium detections across the Site, and the lack of obvious on-Site sources of hexavalent
chromium based on historical operations, the detected hexavalent chromium concentrations are
likely naturally occurring. Lead was detected in soil sample SB-6 (1-3) at a concentration that
exceeds the Protection of Groundwater PSRG, Residential PSRG, and published background
levels. The sample was analyzed by the Toxicity Characteristic Leaching Procedure (TCLP) for lead

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and the resulting concentration does not exceed the EPA maximum concentration for the toxicity
characteristic of 5 mg/L. Selenium was detected in soil samples SB-2 (1-3), SB-7 (1-3), SB-8 (3-5),
SB-10 (1-3), SB-11 (1-3), SB-11 (3-5), and SB-17 (8-10) and its duplicate SB-Dup at concentrations
above the Protection of Groundwater PSRG and published naturally occurring background levels.
The detected selenium concentrations appear to be naturally occurring based on a lack of
obvious sources of selenium from historical operations at the Site and prior soil data for the
South End District of Charlotte. No other metals were detected in soil samples collected at the
Site above PSRGs and published background concentrations for North Carolina soils.
2) Depth of known or suspected contaminants (feet):
1 to 13 feet
3) Area of soil disturbed by redevelopment (square feet):
The first phase of redevelopment will be limited to the eastern portion of the Site (approximately
1.1 acres or 47,916 square feet), and soil disturbance is anticipated to occur across the majority
of this portion of the Site within the proposed building footprint and along proposed driveways,
parking areas, and landscaped areas. Grading plans and a cut/fill analysis are provided as
Appendix B.
4) Depths of soil to be excavated (feet):
Phase I of redevelopment will focus on the eastern portion of the Site. Shallow soil excavation
(up to a depth of approximately 1.5 ft bgs) is generally proposed for general grading. Additional
excavations related to utility installation, tower crane foundations, and elevator pits may be up
to 15 ft in depth. Auger cast piles will be installed at depths up to 90 ft. Foundation plans are
included as Appendix C.

5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan):
Based on conservative estimates of potential disturbance of up to 1 ft bgs across the Site in
additional to excavation during excavation of elevator pits, utility trenches/vaults, and tower
crane foundations, an estimated 8,500 cubic yards of soil will be excavated during
redevelopment activities.

6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants:
The volume of impacted soil to be excavated at the Site is unknown. As noted in Part 1.A.
Section 4 (Soil Sample Collection), in-situ composite soil sampling may be performed in proposed
cut areas at the Site prior to redevelopment. In addition, sampling of stockpiled soils may also be
conducted. Results from the in-situ composite soil sampling and/or stockpile sampling activities
will be provided to the Brownfields Program and used to determine appropriate on-site
management or off-Site disposal options.

7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable:
See answer to Part 1 Section 6 above. Soil management (including potential off-Site disposal)
will be based on in-situ and stockpile soil sample analytical data and risk evaluation by the
Brownfields Program.

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Part 1.A. MANAGING ONSITE SOIL
If soil is anticipated to be excavated from the Brownfield Property, relocated on the Brownfields
Property, or otherwise disturbed during site grading or other redevelopment activities, please
provide a grading plan that clearly illustrates areas of cut and fill (approximate areas & volumes are
acceptable, if only preliminary data available).

1) HAZARDOUS WASTE DETERMINATION:
a) Does the soil contain a LISTED WASTE as defined in the North Carolina Hazardous
Waste Section under 40 CFR Part 261.31-261.35?....................................... ☐Yes ☒No
☐ If yes, explain why below, including the level of knowledge regarding processes
generating the waste (include pertinent analytical results as needed).
Click or tap here to enter text.

☐ If yes, do the soils exceed the “Contained-Out” levels in Attachment 1 of the
North Carolina Contained-In Policy?................................................. ☐ Yes ☐ No

b) NOTE: IF SOIL MEETS THE DEFINITION OF A LISTED HAZARDOUS WASTE AND EXCEEDS
THE CONTAINED-OUT LEVELS IN ATTACHMENT 1 TO THE NORTH CAROLINA
CONTAINED-IN POLICY THE SOIL MAY NOT BE RE-USED ON SITE AND MUST BE
DISPOSED OF IN ACCORDANCE WITH DEQ HAZARDOUS WASTE SECTION RULES AND
REGULATIONS.
c) Does the soil contain a CHARACTERISTIC WASTE?.................................... ☐ Yes ☒ No
☐ If yes, mark reason(s) why below (and include pertinent analytical results).
☐ Ignitability Click or tap here to enter text.
☐ Corrosivity Click or tap here to enter text.
☐ Reactivity Click or tap here to enter text.
☐ Toxicity Click or tap here to enter text.
☐ TCLP results Click or tap here to enter text.
☐ Rule of 20 results (20 times total analytical results for an individual
hazardous constituent on TCLP list cannot, by test method, exceed regulatory
TCLP standard)
Click or tap here to enter text.

☒ If no, explain rationale:
The concentrations of lead reported in soil samples SB-6 (1-3) and SB-8 (3-5)
exceed the TCLP criteria using the Rule of 20. However, TCLP lead results do not
exceed the maximum concentration for the toxicity characteristic of 5 mg/L.
Analytical data for other soil samples collected at the Site do not indicate
detections capable of exceeding TCLP criteria using the Rule of 20.

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d) NOTE: IF SOIL MEETS THE DEFINITION OF A CHARACTERISTIC HAZARDOUS WASTE, THE
SOIL MAY NOT BE RE-USED ON SITE AND MUST BE DISPOSED OF IN ACCORDANCE
WITH DEQ HAZARDOUS WASTE SECTION RULES AND REGULATIONS.
2) Screening criteria by which soil disposition decisions will be made (e.g., left in place, capped in
place with low permeability barrier, removed to onsite location and capped, removed offsite):
☒ Preliminary Health-Based Residential SRGs
☐ Preliminary Health-Based Industrial/Commercial SRGs
☒ Division of Waste Management Risk Calculator (For Brownfields Properties Only)
☐ Site-specific risk-based cleanup level. Please provide details of methods used for
determination/explanation.
Click or tap here to enter text.

Additional comments:
Click or tap here to enter text.
3) If known impacted soil is proposed to be reused within the Brownfields Property Boundary,
please check the measures that will be utilized to ensure safe placement and documentation of
same. Please attach a proposed location diagram/site map.
☒ Provide documentation of analytical report(s) to Brownfields Project Manager
☒ Provide documentation of final location, thickness and depth of relocated soil on site map
to Brownfields Project Manager once known
☒ Geotextile to mark depth of fill material.
Provide description of material:
Geotextile is not proposed at this time but may be considered.
☒ Manage soil under impervious cap ☒ or clean fill ☒
☒ Describe cap or fill:
Should impacted soil be encountered during redevelopment, the potentially impacted soil
will be placed beneath impervious surfaces (asphalt pavement, sidewalks, buildings, etc.) or
a minimum of 2 ft of documented clean fill. Soil placement will be conducted in accordance
with the Soil Sample Collection section outlined below.
☒ Confer with NC BF Project Manager if Brownfield Plat must be revised (or re-recorded if
actions are Post-Recordation).
☐ GPS the location and provide site map with final location.
☐ Other. Please provide a description of the measure:

Click or tap here to enter text.

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4) Please describe the following action(s) to be taken during and following excavation and
management of site soils:
Management of fugitive dust from site
☒ Yes, describe the method will include:
Significant areas of contaminated soil are not expected to be encountered or disturbed
during Site redevelopment activities based upon shallow soil sampling data. The grading
contractor will consider conditions such as wind speed, wind direction, and moisture
content of soil during soil grading and stockpiling activities to minimize dust generation. In
the unlikely event that contaminated soil is encountered during Site redevelopment that
requires excavation, particular attention will be paid by contractors to implement dust
control measures as needed based on site and atmospheric conditions (i.e. by controlled
water application, hydro-seeding, and/or mulch, stone, or plastic cover). Potentially
impacted soil will be managed as described below.

☐ No, explain rationale:
Click or tap here to enter text.

Field Screening of site soil
☒ Yes, describe the field screening method, frequency of field screening, person conducting
field screening:
During soil disturbance at the Site, the workers or contractors will observe soils for
evidence of potential impacts. Evidence of potentially impacted soil includes a distinct
unnatural color, strong odor, or filled or previously disposed materials of concerns (i.e.
chemicals, tanks, drums, etc.). Should the above be noted during site work, the contractor
will contact the project environmental professional to observe the suspect condition. If
the project environmental professional confirms that the material may be impacted, then
the procedures below will be implemented. In addition, the DEQ Brownfields project
manager will be contacted within 48 hours to advise of the condition.

☐ No, explain rationale:
Click or tap here to enter text.

Soil Sample Collection
☒ Yes, describe the sampling method (e.g., in-situ grab, composite, stockpile, etc.):
The PD may perform in-situ composite sampling to characterize soil for export purposes.
The proposed methodology and scope of work will be outlined in a Work Plan which will
be submitted to DEQ for approval prior to conducting in-situ composite sampling
activities.

☒ No, explain rationale:
Collection of additional soil samples other than potential in-situ composite samples noted
above is not anticipated. However, if significant soil impact is encountered during grading
and/or installation or removal of utilities, excavation will proceed only as far as needed to
allow grading or other construction-related activity to continue and/or only as far as

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needed to allow alternate corrective measures as described below. Suspect significantly
impacted soil excavated during redevelopment activities may be stockpiled and covered
in a secure area to allow construction to progress. Suspect impacted soil will be
stockpiled in accordance with Figure 1, NCBP Diagram for Temporary Containment of
Impacted or Potentially Impacted Soil. At least one representative soil sample (no less
than 3 aliquot soil samples) at a sample ratio of 1 soil sample per every approximately
1,000 cubic yards of soil will be collected for analysis of total VOCs, SVOCs, RCRA metals,
and hexavalent chromium. If the soil sample laboratory analytical results indicate that the
soil could potentially exceed toxicity characteristic hazardous waste criteria, then the soil
will also be analyzed by TCLP for those compounds that could exceed the toxicity
characteristic hazardous waste criteria.
Saturated soil cuttings generated during auger cast pile installation will be stockpiled on
and covered by 10-mil plastic sheeting or placed in lined and covered roll-off containers to
allow to dry prior to characterization and export to a DEQ-approved location or a
Municipal Solid Waste Landfill (MSWLF) under a facility-approved waste profile. Refer to
Part 1.C. and Part 2 for details regarding export soil and groundwater management
procedures, respectively.
Impacted soil will be handled in the manner described below based upon laboratory
analyses:
i. If no organic compounds or metals are detected in a sample (other than which are
attributable to sampling or laboratory artifacts) above DEQ Protection of
Groundwater or Residential PSRGs (whichever is lower), the TCLP concentrations
are below hazardous waste criteria, and the cumulative risk calculator results are
acceptable, then the soil will be deemed suitable for use as on-Site fill or as off-
Site fill. The proposed location(s) for off-Site placement of soil (other than a
MSWLF) along with the receiving facility’s written approval for acceptance of the
soil will be provided to DEQ for approval prior to taking the soil off-Site.
ii. If detectable levels of compounds are found which do not exceed DEQ Residential
PSRGs (other than which are attributable to sampling or laboratory artifacts) and
the TCLP concentrations are below hazardous waste criteria, then the soil may be
used on-Site as fill without conditions.
iii. If detectable levels of compounds are found which exceed the DEQ Residential PSRGs
(other than which are attributable to sampling or laboratory artifacts or which are
consistent with background levels for metals) and the TCLP concentrations are
below hazardous waste criteria, then the soil, with DEQ’s written approval, may
be used on-Site as fill below an impervious surface, at least 2 ft of compacted
demonstrably clean soil, or overlain by a geotechnical fabric and at least 1 ft of
demonstrably clean soil. If the impacted soil with concentrations above
Residential PSRGs is moved to an on-Site location, its location and depth will be
documented and provided to DEQ and the impacted soil will be placed beneath at
least 2 ft of compacted demonstrably clean soil, an impervious surface, or
covered by a geotechnical fabric and at least 1 ft of demonstrably clean soil.

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iv. Impacted soil may be transported to a MSWLF in accordance with Part 1.c. Export Soil,
provided that the soil is acceptable at the disposal facility. If soil is transported to
a permitted facility, the permitted facility’s written approval to dispose of soil
from the Site will be included with the annual redevelopment report. In the
unlikely event that the sample data indicates concentrations above TCLP
hazardous waste criteria, then the soil must be transported off-Site to a MSWLF
that can accept or treat hazardous waste.
Please note that should the PD elect to transport export soil to a permitted facility
or to a DEQ Brownfields pre-approved receiving facility, soil will be direct loaded
onto trucks for transport off-Site.

If soil samples are collected for analysis, please check the applicable chemical analytes:
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium
and silver): Specify Analytical Method Number(s): EPA Methods 6020/7471
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Specify Analytical Method Number(s): Hexavalent chromium by EPA Method 7199

☒ Check to confirm that stockpiling of known or suspected impacted soils will be conducted
in accordance with Figure 1 of this EMP. Stockpile methodology should provide erosion
control, prohibiting contact between surface water/precipitation and contaminated soil,
and preventing contaminated runoff. Explain any variances or provide additional details as
needed:

☒ Final grade sampling of exposed native soil (i.e., soil that will not be under buildings or
permanent hardscape). Select chemical analyses for final grade samples with check boxes
below (Check all that apply):
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
Click or tap here to enter text.

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☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver): Specify Analytical Method Number(s): EPA Methods 6020/7471
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Hexavalent chromium by EPA Method 7199

Please provide a scope of work for final grade sampling, including a diagram of soil
sampling locations, number of samples to be collected, and brief sampling methodology.
Samples should be collected from 0-2 ft below ground surface, with the exception of VOCs
which should be taken from 1-2 ft below ground surface. Alternatively, indicate if a work
plan for final grade sampling may be submitted under separate cover.
Following completion of soil disturbance for any future site development (i.e. after grading
and utility construction), an environmental professional will be contracted to assess the
site for areas that are not covered with clean fill soil (i.e., documented clean fill from a pre-
approved off-site source), building foundations, sidewalks, asphalt or concrete parking
areas, driveways, or other impervious surfaces. If such areas exist, a Work Plan will be
prepared for final grade sampling for DEQ review and approval. Following DEQ approval of
the Work Plan, final grade sampling and DEQ approval of the results will be completed
prior to occupancy. If no such areas exist, documentation will be provided to the DEQ
Brownfields project manager.

☐ If final grade sampling was NOT selected, please explain rationale:
Click or tap here to enter text.

Part 1.B. IMPORTED FILL SOIL

NO SOIL MAY BE BROUGHT ONTO THE BROWNFIELDS PROPERTY WITHOUT PRIOR APPROVAL
FROM THE BROWNFIELDS PROGRAM. According to the Brownfields IR 15, “Documenting
imported soil (by sampling, analysis, and reporting in accordance with review and written
approval in advance by the Brownfields Program), will safeguard the liability protections provided
by the brownfields agreement and is in the best interest of the prospective developer/property
owner.”

Requirements for importing fill:

1) Will fill soil be imported to the site?................................................ ☒ Yes ☐ No ☐ Unknown

2) If yes, what is the estimated volume of fill soil to be imported?

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The current cut/fill analysis estimates that approximately 86 cubic yards of fill will be placed at the
Site. A portion of the fill material will be from cut areas noted above in Part 1 Item 5, if
geotechnically suitable, and additional fill material will be sourced from DEQ Brownfields-
approved locations. Additionally, limited amounts of virgin organic rich topsoil may be imported
from a commercial landscape material vendor for use in proposed landscaped areas.

3) If yes, what is the anticipated depth that fill soil will be placed at the property? (If a range
of depths, please list the range.)
approximately 0 to 1 foot

4) Provide the source of fill, including: location, site history, nearby environmental concerns,
etc. Attach aerial photos, maps, historic Sanborn maps and a borrow source site history:
The source of the fill material has not been determined at this time. However, the PD intends to
use existing soil data for the Site and other local Brownfields Properties to identify a DEQ-
approved Brownfields export site. Alternatively, the PD will import fill material from the Vulcan
Materials Company quarry located near Pineville, NC or from the Martin Marietta quarry located
on Beatties Ford Road in Charlotte, NC.

5) PRIOR TO ITS PLACEMENT AT THE BROWNFIELDS PROPERTY, provide a plan to analyze fill
soil to demonstrate that it meets acceptable standards applicable to the site and can be
approved for use at the Brownfields property.
To demonstrate that imported soil is suitable for use at the Site (other than fill obtained from
DEQ Brownfields pre-approved borrow sites), the fill soil will be sampled and approved by DEQ
Brownfields prior to being brought to the Site. See No. 7 below for details outlining the
proposed plan to demonstrate that import soil meets acceptable standards applicable to the
Site.

6) Please check the applicable chemical analytes for fill soil samples. (Check all that apply):
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver): Specify Analytical Method Number(s): EPA Methods 6020/7471
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Hexavalent chromium by EPA Method 7199

7) The scope of work for import fill sampling may be provided below or in a Work Plan

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submitted separately for DEQ review and approval. Attach specific location maps for in-situ
borrow sites. If using a quarry, provide information on the type of material to be brought
onto the Brownfields Property.
The PD will follow the procedures outlined below to demonstrate import soil meets acceptable
standards applicable to the Site:
If the PD plans to import virgin fill material (i.e., not reused or recycled material) from Vulcan
Materials Company quarry located near Pineville, NC or from the Martin Marietta quarry located
on Beatties Ford Road in Charlotte, NC, no samples of the import material will be collected as
adequate analytical data is available in the DEQ Brownfields database to demonstrate material
from these facilities is suitable for use as structural fill at a Brownfields property.

If fill soil is obtained from an off-Site property that is not a known permitted quarry, a sampling
plan will be developed and submitted for DEQ review. DEQ approval of the sampling plan and
analytical results will be obtained prior to transporting import soil to the Site. The specific
sampling rate will be outlined in the aforementioned sampling plan. However, if the proposed
borrow source has not been previously developed (i.e., virgin land), soil samples will be collected
for laboratory analyses indicated above at a general rate of one per 1,000 cubic yards consisting
of a minimum 3 composite samples for non-VOC analysis and a grab sample for VOC analysis. If
the borrow source property has been previously developed, soil samples will be collected for
laboratory analyses indicated above at a general rate of approximately one per 500 cubic yards.
Fill soil will be considered suitable for use at the Site if it does not contain compound
concentrations above DEQ Residential PSRGs, metals concentrations are generally consistent with
regional background levels or background levels consistent with concentrations previously
identified at the Brownfields Property, and the results of risk calculations using the latest version
of the DEQ Risk Calculator indicate that VOC, SVOC, and metals concentrations detected in fill soil
are suitable for a residential exposure scenario.

Part 1.C. EXPORTED SOIL

NO SOIL MAY LEAVE THE BROWNFIELDS PROPERTY WITHOUT APPROVAL FROM THE
BROWNFIELDS PROGRAM. FAILURE TO OBTAIN APPROVAL MAY VIOLATE A BROWNFIELDS
AGREEMENT CAUSING A REOPENER OR JEOPARDIZING ELIGIBILITY IN THE PROGRAM,
ENDANGERING LIABILITY PROTECTIONS AND MAKING SAID ACTION POSSIBLY SUBJECT TO
ENFORCEMENT. JUSTIFICATIONS PROVIDED BELOW MUST BE APPROVED BY THE PROGRAM IN
WRITING PRIOR TO COMPLETING TRANSPORT ACTIVITIES. Please refer to Brownfields IR 15 for
additional details.

1) If export from a Brownfields Property is anticipated, please provide details regarding the
proposed export actions. Volume of exported soil, depths, location from which soil will
be excavated on site, related sampling results, etc. Provide a site map with locations of
export and sampling results included.
Approximately 8,500 cubic yards of soil is anticipated to be generated during Site grading,
installation of foundations and utilities, and from shallow depths during installation of auger cast

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piles. As noted in Part 1.A. Section 4 (Soil Sample Collection), in-situ composite sampling may be
performed in proposed cut areas at the Site in accordance with a DEQ-approved Work Plan. The
results of in-situ soil assessment with an estimate of impacted soil to be excavated will be
presented to DEQ Brownfields under separate cover if assessment activities are conducted. An
additional approximately 2,250 cubic yards of soil is anticipated to be generated from depths
beneath the water table during auger cast pile installation. Based on the saturated nature of the
deeper auger cast pile spoils, the soil will be stockpiled on and covered by minimum 10-mil
plastic sheeting in accordance with Figure 1 or placed in lined and covered roll-off containers to
allow to dry and prior to characterization and export to DEQ-approved location or exported to a
MSWFL under a facility-approved profile. H&H will sample the soil stockpile at a rate of
approximately one sample per 500 cubic yards.

In-situ and stockpile soil samples will be collected for laboratory analysis of VOCs by EPA Method
8260, SVOCs by EPA Method 8270, and RCRA metals by EPA Method 6020/7471, and hexavalent
chromium by EPA Method 7199. Sample volume for SVOCs and metals analysis will be collected
as composite samples using a decontaminated stainless-steel hand auger or acetate-lined macro
cores based on sample depth. The composite samples will consist of five sample aliquots that
are combined to form one sample for laboratory analysis. Each aliquot will be field screened for
the presence of VOCs using a calibrated PID. VOC samples will be collected as grab samples
using a decontaminated stainless-steel hand auger or macro core from the general area of the
aliquot which exhibits the highest indication of impact during field screening. The soil collected
for VOC analysis will be collected from non-homogenized, non-screened soils to reduce
volatilization of potential contaminants.

Following completion of the soil sampling activities and receipt of the analytical data, H&H will
prepare a data summary package for DEQ review. The data summary package will include a
tabular summary of the laboratory analytical results in comparison to the regulatory screening
levels and background metals concentrations, and a copy of the laboratory analytical report.
H&H assumes that the data summary package can be reviewed by DEQ to provide guidance
regarding potential export site selection. Based on analytical results of soil samples collected
from the export soil, the soil will be transported off-site to a suitable location. The PD will notify
DEQ Brownfields of the location receiving the export soil. If not a permitted facility (e.g., another
Brownfields property), written approval from DEQ Brownfields and the receiving facility will be
obtained prior to transporting the soil off-site. If the receiving facility is a non-Brownfields
property, DEQ Solid Waste Section approval will be obtained prior to transporting the soil off-
site.

2) To what type of facility will the export Brownfields soil be sent?
☒ Subtitle D/Municipal Solid Waste Landfill (analytical program to be determined by landfill)
☒ Permitted but Unlined Landfill (i.e. LCID, C&D, etc.) Analytical program to be
determined by the accepting Landfill;

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☒ Landfarm or other treatment facility
☒ Use as fill at another suitable Brownfields Property – determination that a
site is suitable will require, at a minimum, that similar concentrations of the same or
similar contaminants already exist at both sites, use of impacted soil will not increase
the potential for risk to human health and the environment at the receiving Brownfields
property, and that a record of the acceptance of such soil from the property owner of
the receiving site is provided to Brownfields. Please provide additional details below.
☒ Use as Beneficial Fill off-site at a non-Brownfields Property - Please provide
documentation of approval from the property owner for receipt of fill material. This will
also require approval by the DEQ Solid Waste Section. Additional information is
provided in IR 15. Please provide additional details below.

3) Additional Details: (if transfer of soil to another property is requested above, please provide
details related to the proposed plans).
The environmental professional will contact DEQ Brownfields to obtain written approval from
DEQ Brownfields and the DEQ Solid Waste Section prior to exporting soil to a non-MSWLF.

Part 1.D. MANAGEMENT OF UTILITY TRENCHES

☐ Install liner between native impacted soils and base of utility trench before filling with clean fill
(Preferred)

☒ Last out, first in principle for impacted soils (if soil can safely be reused onsite and is not a
hazardous waste), i.e., impacted soils are placed back at approximately the depths they
were removed from such that impacted soil is not placed at a greater depth than the original
depth from which it was excavated.

☐ Evaluate whether necessary to install barriers in conduits to prevent soil vapor transport,
and/or degradation of conduit materials due to direct impact with contaminants?
☐ If yes, provide specifications on barrier materials or provide the results of this evaluation in the
Vapor Mitigation Plan. Note that if vapor mitigation is planned for site buildings, utility
corridors will need to be evaluated as part of mitigation designs:
Click or tap here to enter text.

☐ If no, include rationale here:
Click or tap here to enter text.

☒ Unknown, details to be provided in the Vapor Mitigation Plan for site buildings

Other comments regarding managing impacted soil in utility trenches:
Although not anticipated, in the event that evidence of contaminated soil and/or vapors (e.g., unusual
odors and/or stained soil) is encountered in utility trenches during redevelopment activities, the
trench will be evacuated and appropriate safety screening of the vapors will be performed to protect
workers. If results indicate further action is warranted in response to vapors to protect workers,

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appropriate engineering controls (such as use of industrial fans) will be implemented.
The contractor and workers will observe soil for potential impacts during utility installation activities.
Evidence of potential significant impacted soil includes a distinct unnatural color, strong odor, or filled
or previously disposed materials of concern (i.e. chemicals, tanks, drums, etc.). Should the above be
noted during utility work, the contractor will contact the project environmental professional to
observe the suspect condition and screen the soil using a photo-ionization detector (PID) or other
similar vapor field screening instrument. If the project environmental professional confirms that the
material may be impacted, then the procedures outlined in Managing On-Site Soil above (Part 1.A.)
will be implemented. In addition, the environmental professional will contact the DEQ Brownfields
project manager within 48 hours to advise that person of the condition.
PART 2. GROUNDWATER
1) What is the depth to groundwater at the Brownfields Property?
The depth to groundwater measured in temporary monitoring wells installed at the Site ranged
from approximately 11 to 14 ft bgs.
2) Is groundwater known to be contaminated by ☐onsite ☐offsite ☒both or ☐unknown
sources? Describe source(s):
A tabular summary of historical groundwater analytical data in comparison to the North Carolina
Administrative Code (NCAC) 2L Groundwater Standards (2L Standards), DEQ Interim Maximum
Allowable Concentrations (IMACs), and DEQ Groundwater Screening Levels (GWSLs) is included
as Table 2. Groundwater sample locations are shown on Figure 2. A brief summary of the results
is provided below.

The VOCs benzene, 1,2-dichloroethane, ethylbenzene, isopropylbenzene, methyl butyl ketone,
methyl isobutyl ketone, methyl tert-butyl ether (MTBE), naphthalene, toluene, m&p-xylenes, and
o-xylene were reported in sample TMW-1 and its duplicate, TMW-Dup, at concentrations above
the 2L Standards or IMACs. The concentrations of benzene, 1,2-dichloroethane, ethylbenzene,
naphthalene, toluene, m&p-xylenes, and o-xylene also exceed the Residential and Non-
Residential GWSLs. The concentrations of MTBE in sample TMW-1 and its duplicate exceed the
Residential GWSL, but are below the Non-Residential GWSL. Benzene and ethylbenzene were
detected in sample TMW-2 at concentrations that exceed the Residential GWSLs. The benzene
concentration in TMW-2 also exceeds the 2L Standard and Non-Residential GWSL. Chloroform
was detected in sample TMW-4 at a concentration that exceeds the Residential GWSL. Sample
TMW-5 indicated a concentration of tetrachloroethylene that exceeds the 2L Standard and a
concentration of trichloroethylene that exceeds the Residential GWSL. Benzene and chloroform
were detected in sample TMW-7 at concentrations that exceed the Residential GWSLs. The
benzene concentration detected in TMW-7 also exceeds the 2L Standard and Non-Residential
GWSL.

The SVOCs 2-methylnaphthalene and naphthalene were identified in samples TMW-1 and its
duplicate at concentrations that exceed the 2L Standards. The naphthalene concentrations also
exceed the Residential and Non-Residential GWSLs.

Several metals, including arsenic, barium, cadmium, chromium, lead, and selenium have been

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detected at low concentrations below 2L Standards in groundwater samples collected at the Site.

The source of the groundwater contaminants may be historical on-Site or off-Site USTs, gas
stations, auto service facilities, or dry-cleaner facilities.

3) What is the direction of groundwater flow at the Brownfields Property?
Groundwater flow at the Site is expected to mimic topography and flow toward the west-
northwest.

4) Will groundwater likely be encountered during planned redevelopment activities?
☒Yes ☐No
If yes, describe these activities:
Approximate 18-inch diameter auger cast piles will be installed to depths up to 90 ft bgs during
Phase I redevelopment at the Site. As such, groundwater will be encountered during the
installation of auger cast piles; however, it is not anticipated that groundwater will be allowed to
accumulate such that sampling or disposal is required. The soil cuttings will be managed in
accordance with Section 1 of this EMP. See below for groundwater management procedures. Regardless of the answer; in the event that contaminated groundwater is encountered during redevelopment activities (even if no is checked above), list activities for contingent management of groundwater (e.g., dewatering of groundwater from excavations or foundations, containerizing, offsite disposal, discharge to sanitary sewer, NPDES permit, or sampling procedures).
Based on the approximate depth to groundwater, groundwater is anticipated to be
encountered during installation of auger cast piles. Groundwater may be encountered during
excavation of utility vaults, crane foundations, or elevator pits.

The volume of groundwater that will require management during auger cast pile installation is
unknown, as it is largely dependent on Site-specific geological and hydrogeological conditions.
The majority of drilling spoils is anticipated to be saturated soil, which will be managed as noted
in Part 1.A. and Part 1.C. If free-flowing groundwater can be reasonably captured, it will be
pumped to lined and covered roll-off containers or an aboveground tank prior to testing for the
presence of VOCs, SVOCs, and RCRA metals. The groundwater will then be disposed off-Site (if
impacted) or discharged to the storm sewer (if not impacted above DEQ surface water
standards).

For areas not suspected to be impacted (based on previous sampling data and/or field
observations), groundwater that accumulates in an excavation will be pumped to a temporary
sediment basin and allowed to infiltrate or evaporate. The sediment basin is proposed to be
constructed near the central portion of the Site, away from neighboring property boundaries,
and is not anticipated to receive groundwater impacted by constituents at concentrations
exceeding 2L Standards or IMACs. The approximate location of the proposed temporary
sediment basin is shown on the grading plan in Appendix B. A frac tank will also be available in
the event that the volume of accumulated groundwater exceeds the capacity of the sediment
basin. Once the groundwater within the basin infiltrates and/or evaporates, the groundwater

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will be pumped from the frac tank to the sediment basin or, if needed, sampled for VOCs, VOCs,
and RCRA metals prior to transport off-site to a permitted disposal facility.

Appropriate worker safety measures will be undertaken if groundwater gathers in an open
excavation within an area suspected to be impacted (based on previous sampling data, strong
odor, unnatural color, sheen, etc.) during construction activities. The contractor will contact the
environmental professional to observe the area(s) suspected to be impacted. The accumulated
water will be allowed to evaporate/infiltrate to the extent time for dissipation does not disrupt
the construction schedule. Should the time needed for natural dissipation of accumulated
water be deemed inadequate, the water will be tested for the presence of VOCs, SVOCs, and
RCRA metals and disposed off-Site (if impacted), or tested and discharged to the storm sewer (if
not impacted above DEQ surface water standards) in accordance with applicable municipal and
State regulations for erosion control and construction stormwater control.

Alternatively, additional prior groundwater sampling may be conducted under a DEQ-approved
work plan to evaluate contaminant concentrations for potential discharge to the storm sewer.

5) Are monitoring wells currently present on the Brownfields Property?.................☐Yes ☒No
If yes, are any monitoring wells routinely monitored through DEQ or other
agencies?..................................................................................................................☐Yes ☐No

6) Please check methods to be utilized in the management of known and previously
unidentified wells.
☐ Abandonment of site monitoring wells in accordance with all applicable regulations. It
is the Brownfields Program’s intent to allow proper abandonment of well(s) as
specified in the Brownfields Agreement, except if required for active monitoring
through another section of DEQ or the EPA.
☐ Location of existing monitoring wells marked
☐ Existing monitoring wells protected from disturbance
☒ Newly identified monitoring wells will be marked and protected from further
disturbance until notification to DEQ Brownfields can be made and approval for
abandonment is given.

7) Please provide additional details as needed:

Please note, disturbance of existing site monitoring wells without approval by DEQ is not
permissible. If monitoring wells are damaged and/or destroyed, DEQ may require that the PD
be responsible for replacement of the well.

PART 3. SURFACE WATER
1) Is surface water present at the property? ☐ Yes ☒ No ☐ Unknown
Click or tap here to enter text.

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2) Attach a map showing the location of surface water at the Brownfields Property.
3) Is surface water at the property known to be contaminated? ☐ Yes ☒ No
4) Will workers or the public be in contact with surface water during planned redevelopment
activities? ☐ Yes ☒ No
5) In the event that contaminated surface water is encountered during redevelopment
activities, or clean surface water enters open excavations, list activities for management of
such events (e.g. flooding, contaminated surface water run-off, stormwater impacts):
If surface water run-off gathers in an open excavation within an area suspected to be impacted
during construction activities, appropriate worker safety measures will be undertaken. The
accumulated water will be allowed to evaporate/infiltrate to the extent that the time for
dissipation does not disrupt the construction schedule. Should the time needed for natural
dissipation of accumulated water be deemed inadequate, the water will be tested for the
presence of VOCs, SVOCs, and RCRA metals and disposed off-site (if impacted), or tested and
discharged to the storm sewer (if not impacted above DEQ surface water standards) in
accordance with applicable municipal and State regulations for erosion control and construction
stormwater control.

PART 4. SEDIMENT

1) Are sediment sources present on the property? ☐ Yes ☒ No

2) If yes, is sediment at the property known to be contaminated: ☐ Yes ☐ No ☐ Unknown

3) Will workers or the public be in contact with sediment during planned redevelopment
activities? ☐ Yes ☒ No

4) Attach a map showing location of known contaminated sediment at the property.

5) In the event that contaminated sediment is encountered during redevelopment activities, list
activities for management of such events (stream bed disturbance):
Not applicable

PART 5. SOIL VAPOR
1) Do concentrations of volatile organic compounds at the Brownfields property exceed the following vapor intrusion screening levels (current version) in the following media:
IHSB Residential Screening Levels:
Soil Vapor:………..☒ Yes ☐ No ☐ Unknown
Groundwater:.….☒ Yes ☐ No ☐ Unknown
IHSB Industrial/Commercial Screening Levels:
Soil Vapor:………..☒ Yes ☐ No ☐ Unknown

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Groundwater:…..☒ Yes ☐ No ☐ Unknown
2) Attach a map showing the locations of soil vapor contaminants that exceed site
screening levels.
3) If applicable, at what depth(s) is soil vapor known to be contaminated?
4) Will workers encounter contaminated soil vapor during planned redevelopment activities?
☐ Yes ☐ No ☒ Unknown In the event that contaminated soil vapor is encountered during
redevelopment activities (trenches, manways, basements or other subsurface work,) list
activities for management of such contact:
In the event contaminated soil vapors are encountered during future redevelopment activities
(i.e., unusual odors identified, or obvious stained soil or waste material observed), the area will
be evacuated and appropriate safety screening of the vapors will be performed. If results
indicate further action is warranted, appropriate engineering controls (such as use of industrial
fans) will be implemented.

PART 6. SUB-SLAB SOIL VAPOR
1) Do concentrations of volatile organic compounds at the Brownfields property exceed the
following vapor intrusion screening levels (current version) in sub-slab soil vapor:
IHSB Residential Screening Levels:
Soil vapor samples have been collected at depths of approximately 6.5 to 7 ft bgs. Soil vapor
analytical data are summarized in Table 3, and sample locations are depicted on Figure 2. A brief
summary of the results is provided below.

Chloroform, ethylbenzene, and naphthalene were detected at concentrations exceeding Residential
SGSLs but below Non-Residential SGSLs in sample SG-1. Chloroform and naphthalene were also
detected above Residential SGSLs in sample SG-11. Low concentrations of chloroform above the
Residential SGSL were also identified in samples SG-2 and SG-8. The concentration of hexane
reported in the SG-3 duplicate sample (SG-Dup-11/20/20) exceeds the Residential SGSL. Benzene and
chloroform concentrations detected in samples SG-4 and SG-6 exceed the Residential SGSLs but are
below the Non-Residential SGSLs. The concentration of benzene detected in sample SG-5 exceeds the
Residential SGSL. Benzene and ethylbenzene were detected above the Residential SGSLs in sample
SG-12. Concentrations of benzene, ethylbenzene, naphthalene, 1,2,4-trimethylbenzene, 1,3,5-
trimethylbenzene, and m&p-xylenes were detected in samples SG-13, SG-14, and the SG-14 duplicate
sample (SG-Dup) above Residential and Non-Residential SGSLs. Concentrations of 1,2-dichloroethane
and o-xylene were detected in sample SG-14 and its duplicate, SG-Dup, above Residential and Non-
Residential SGSLs. The concentration of o-xylene detected in sample SG-13 exceeds the Residential
SGSL. Heptane and hexane were detected in SG-13, SG-14, and SG-Dup at concentrations above the
Residential SGSLs. No other compounds were detected at concentrations above the SGSLs in soil
vapor samples collected at the Site. Trichloroethene was not detected in any of the soil vapor
samples collected at the Site.

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Soil Vapor:………..☐ Yes ☐ No ☒ Unknown
Groundwater:.….☒ Yes ☐ No ☐ Unknown
IHSB Industrial/Commercial Screening Levels:
Soil Vapor:………..☐ Yes ☐ No ☒ Unknown
2) Groundwater:…..☒ Yes ☐ No ☐ Unknown If data indicate that sub-slab soil vapor
concentrations exceed screening levels, attach a map showing the location of these exceedances.
3) At what depth(s) is sub-slab soil vapor known to be contaminated? ☐0-6 inches ☐Other, please
describe:
Sub-slab vapor samples have not been collected at the Site.

4) Will workers encounter contaminated sub-slab soil vapor during planned redevelopment
activities? ☐ Yes ☐ No ☒ Unknown

☐ If no, include rationale here:
Click or tap here to enter text.
5) In the event that contaminated soil vapor is encountered during redevelopment activities, list
activities for management of such contact
In the event that evidence of impacted sub-slab vapors are encountered during future
redevelopment activities (i.e. unusual odors are identified or workers report lightheadedness or
other unusual physical reaction), worker breathing zone will be monitored using a calibrated
photoionization detector. If results indicate further action is warranted, appropriate engineering
controls (such as use of industrial fans) will be implemented.

PART 7. INDOOR AIR
1) Are indoor air data available for the Brownfields Property? ☐ Yes ☒ No ☐ Unknown
2) Attach a map showing the location(s) where indoor air contaminants exceed site screening levels.
3) If the structures where indoor air has been documented to exceed risk-based screening levels will
not be demolished as part of redevelopment activities, will workers encounter contaminated
indoor air during planned redevelopment activities? ☐ Yes ☐ No ☐ Unknown

☐ If no, include rationale here:
Click or tap here to enter text.
4) In the event that contaminated indoor air is encountered during redevelopment activities, list
activities for management of such contact:
In the event there is evidence of potential indoor air issues (i.e. unusual odors are identified or
workers report lightheadedness or other unusual physical reaction) during future redevelopment
activities, the area will be evacuated and appropriate safety screening of the indoor air will be
performed. If warranted, safety screening procedures will include periodically screening indoor air for
volatile organic vapors with a calibrated photoionization detector. If results indicate further action is
warranted, appropriate engineering controls (such as use of industrial fans) will be implemented.

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VAPOR INTRUSION MITIGATION SYSTEM
Is a vapor intrusion mitigation system (VIMS) proposed for this Brownfields Property?
☒ Yes ☐ No ☐ Unknown

☐ If no or unknown, include rationale here as well as plans for pre-occupancy sampling, as
necessary:
Click or tap here to enter text.

If yes, ☐ VIMS Plan Attached or ☒ VIMS Plan to be submitted separately
If submitted separately provide date:
A VIMS Plan will be submitted under separate cover to DEQ Brownfields for the proposed Phase I
redevelopment at the Site.
VIMS Plan shall be signed and sealed by a NC Professional Engineer If no, please provide a brief rationale as to why no vapor mitigation plan is warranted:
Click or tap here to enter text.

Note that approval of this EMP does not imply approval with any vapor intrusion mitigation land
use restrictions or requirements of the recorded or draft Brownfields Agreement and that
separate approval of mitigation measures will be required.

CONTINGENCY PLAN – encountering unknown tanks, drums, or other waste materials

In this section please provide actions that will be taken to identify or manage unknown
potential new sources of contamination. During redevelopment activities, it is not uncommon
that unknown tanks, drums, fuel lines, landfills, or other waste materials are encountered.
Notification to DEQ Brownfields Project Manager, UST Section, Fire Department, and/or other
officials, as necessary and appropriate, is required when new potential source(s) of
contamination are discovered. These Notification Requirements were outlined on Page 1 of this
EMP.

Should potentially impacted materials be identified that are inconsistent with known site
impacts, the DEQ Brownfields Project Manager will be notified and a sampling plan will be prepared based on the EMP requirements and site-specific factors. Samples will generally be
collected to document the location of the potential impacts.

Check the following chemical analysis that are to be conducted on newly identified releases:
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and
silver)
EPA Methods 6020/7471

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EMP Version 2, January 2021
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.

☐ PCBs: Specify Analytical Method Number(s):
Click or tap here to enter text.

☒ Other Constituents & Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.)
Please note, if field observations indicate the need for additional analyses, they should
be conducted, even if not listed here.
Hexavalent chromium by EPA Method 7199 Please provide details on the proposed methods of managing the following commonly
encountered issues during redevelopment of Brownfields Properties.
During construction activities, contractors may encounter unknown subsurface environmental
conditions (i.e. tanks, drums, or waste materials) that if encountered, will require proper
management. Prior to beginning site work, H&H will attend a pre-construction kick-off meeting
with the PD and the redevelopment contractors to discuss the DEQ-approved EMP and various
scenarios when it would be appropriate and necessary to notify H&H of the discovery of unknown
subsurface features or potentially impacted media at the Site.

In the event that such conditions are encountered during Site development activities, the
environmental actions noted below will be used to direct environmental actions to be taken during
these activities and sampling data for potentially impacted soil and the disposition of impacted soil
will be provided to DEQ when the data becomes available.

Underground Storage Tanks:
In the event a UST or impacts associated with a UST release are discovered at the Site during
redevelopment activities, the UST and/or UST related impacts will be addressed through the
Brownfields Program. DEQ Brownfields will be notified within 48 hours of discovery of the UST.

One heating oil UST is believed to be present near the northern portion of the Phase I
redevelopment (Figure 2). If the heating oil UST, or any other UST, is encountered during Site
grading or utility trenching, residual fluids (if present) will be removed, sampled for VOCs, SVOCs,
and RCRA metals, and transported off-Site for disposal at a suitable facility based on the laboratory
analytical results. Following the removal of residual fluids, the tank will be removed if necessary for
geotechnical reasons, and closure soil sampling will be performed. The number of soil samples will
be consistent with DEQ UST Section guidelines. The soil samples will be submitted for laboratory
analysis of VOCs, SVOCs, and RCRA metals. Impacted soil will be managed in accordance with the
Managing On-Site Soil section outlined above in the EMP.

If an encountered UST cannot be removed for geotechnical or construction purposes, DEQ will be
notified for approval of in-place closure. Following DEQ approval, closure soil sampling will be
performed in accordance with the DEQ UST Section guidelines. Where appropriate, the bottom of
the UST may be penetrated before abandonment to prevent fluid accumulation. If the UST contains

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EMP Version 2, January 2021
residual fluids, the fluids will be removed, sampled for VOCs, SVOCs, and RCRA metals, and
transported off-Site for disposal at a suitable facility based on the laboratory analytical results. A
survey plat update may also be needed in the event of in-place closure of USTs.

Sub-Grade Feature/Pit:
If a sub-grade feature or pit is encountered and does not require removal for geotechnical or
construction purposes, it will be filled with soil or suitable fill and construction will proceed. Where
appropriate, the bottom may be penetrated before back filling to prevent fluid accumulation. If the
pit has waste in it, the waste may be set aside in a secure area and will be sampled for waste
disposal purposes for TCLP VOCs, TCLP SVOCs, and TCLP metals and disposed off-Site at a permitted
facility or the waste will be managed in accordance with the Managing On-Site Soil section outlined
above in the EMP, whichever is most applicable based on the type of waste present. If the pit must
be removed and the observed waste characteristics indicate the concrete may potentially be
contaminated to a significant degree, the concrete will be sampled and analyzed by methods
specified by the disposal facility.
Buried Waste Material – Note that if buried waste, non-native fill, or any obviously filled materials
is encountered, the DEQ Brownfields Program must be notified to determine if investigation of
landfill gases is required:
If excavation into buried wastes or significantly impacted soils occurs, the contractor is instructed to
stop work in that location and notify the environmental consultant. The environmental consultant
will observe the suspect materials and collect samples if warranted. In this event, confirmation
sampling will be conducted at representative locations in the base and the sidewalls of the
excavation after the waste or significantly impacted soil is removed. The confirmation samples will
be analyzed for VOCs, SVOCs, and RCRA metals (or other analyses as appropriate based on the type
of waste material). Information will be provided to DEQ Brownfields regarding the permitted
facility used for disposal of the waste or significantly impacted soil. Areas of suspected
contaminated soil that remain at the Site after excavation is complete above the DEQ Residential
PSRGs will be managed pursuant to this plan.

Re-Use of Impacted Soils On-Site:
Please refer to description outlined in the Managing On-Site Soil section (Part 1.A.) of the EMP
above.

If unknown, impacted soil is identified on-site, management on-site can be considered after the
project team provides the necessary information, outlined in Part 1.A. Item 11, for Brownfields
Project Manager approval prior to final placement on-site.

If other potential contingency plans are pertinent, please provide other details or scenarios as
needed below:
Click or tap here to enter text.

POST-REDEVELOPMENT REPORTING

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EMP Version 2, January 2021
☒ Check this box to acknowledge that a Redevelopment Summary Report will be required for the
project. If the project duration is longer than one year, an annual update is required and will be
due by January 31 of each year, or 30 days after each one-year anniversary of the effective date of
this EMP (as agreed upon with the Project Manager). These reports will be required for as long as
physical redevelopment of the Brownfields Property continues, except that the final
Redevelopment Summary Report will be submitted within 90 days after completion of
redevelopment. Based on the estimated construction schedule, the first Redevelopment Summary
Report is anticipated to be submitted on 1/31/2022

The Redevelopment Summary Report shall include environment-related activities since the last
report, with a summary and drawings, that describes:
1. actions taken on the Brownfields Property;
2. soil grading and cut and fill actions;
3. methodology(ies) employed for field screening, sampling and laboratory analysis of
environmental media;
4. stockpiling, containerizing, decontaminating, treating, handling, laboratory analysis and
ultimate disposition of any soil, groundwater or other materials suspected or confirmed
to be contaminated with regulated substances; and
5. removal of any contaminated soil, water or other contaminated materials (for example,
concrete, demolition debris) from the Brownfields Property (copies of all legally required
manifests shall be included).

☒ Check box to acknowledge consent to provide a NC licensed P.G. or P.E. sealed, Redevelopment
Summary Report in compliance with the site’s Brownfields Agreement.

31
EMP Version 2, January 2021

Table 1Summary of Soil Analytical ResultsDilworth Auto Service120 E. Kingston Ave; 1700-1728 South Blvd.; and101-115 East BlvdCharlotte, North CarolinaH&H Job No. WPP-011Sample IDLocation DescriptionDate11/18/20 11/18/20 11/18/20 11/18/20 11/17/20 11/17/20 11/18/20 11/18/20 11/18/20 11/18/20Depth (ft bgs)1-3 3-5 8-10 1-3 3-5 8-10 1-3 3-5 1-3 3-5Range MeanVOCs (8260D)Acetone 0.040<0.0014 <0.0850.015 J 0.027<0.00150.02 0.027 0.028 0.015 J 12,000 140,000 25 -- -- --Benzene<0.00088 <0.000870.13 J<0.00082 <0.000860.034<0.00073 <0.00085 <0.00081 <0.000821.2 5.4 0.01 -- -- --Bromomethane<0.0028 <0.0027 <0.16 <0.0026 <0.0027 <0.0029 <0.0023 <0.0027 <0.0025 <0.00261.4 6.4 0.05 -- -- --n-ButylbenzeneNA NA NA NA NA NA NA NA NA NA780 12,000 4.5 -- -- --sec-ButylbenzeneNA NA NA NA NA NA NA NA NA NA1,600 23,000 4.1 -- -- --tert-ButylbenzeneNA NA NA NA NA NA NA NA NA NA1,600 23,000 3.1 -- -- --Cyclohexane<0.00069 <0.00068 <0.041 <0.00064 <0.000670.0051 J<0.00057 <0.00067 <0.00063 <0.000641,400 5,800 NE -- -- --Ethylbenzene<0.00085 <0.0008411<0.00079 <0.000830.024<0.00071 <0.00082 <0.00078 <0.000796.1 27 13 -- -- --Isopropylbenzene (Cumene)<0.00066 <0.000651.9<0.00061 <0.000640.0020 J<0.00055 <0.00064 <0.00060 <0.00061410 2,100 2.3 -- -- --p-IsopropyltolueneNA NA NA NA NA NA NA NA NA NANE NE NE -- -- --Methyl Acetate 0.0022 J 0.018<0.031 <0.00049 <0.00051 <0.00055 <0.00044 <0.00051 <0.00048 <0.0004916,000 230,000 29 -- -- --Methyl Butyl Ketone (2-Hexanone)<0.00039 <0.00038 <0.023 <0.00037 <0.00038 <0.00041 <0.00032 <0.00038 <0.00036 <0.0003642 280 0.18 -- -- --Methyl Ethyl Ketone (2-Butanone)<0.0013 <0.0013 <0.078 <0.0012 <0.0013 <0.0014 <0.0011 <0.0013 <0.0012 <0.00125,500 40,000 17 -- -- --Methyl Isobutyl Ketone<0.00046 <0.00045 <0.027 <0.00043 <0.00045 <0.00049 <0.00038 <0.00045 <0.00042 <0.000437,000 30,000 0.45 -- -- --Methylcyclohexane<0.00033 <0.000333.0<0.00031 <0.000320.0049 J<0.00028 <0.00032 <0.00031 <0.00031NE NE NE -- -- --Methylene Chloride<0.00091 <0.00090 <0.054 <0.00085 <0.00089 <0.000970.00081 J 0.0010 J<0.000840.0014 J 58 650 0.025 -- -- --Methyl-tert-Butyl Ether<0.00079 <0.00078 <0.047 <0.00074 <0.000770.016<0.00066 <0.00077 <0.00073 <0.0007349 220 0.09 -- -- --Naphthalene<0.00057 <0.000568.9<0.00053 <0.000560.026<0.00047 <0.00055 <0.00052 <0.000532.1 8.8 0.39 -- -- --n-PropylbenzeneNA NA NA NA NA NA NA NA NA NA780 5,100 2.6 -- -- --Tetrachloroethylene<0.0010 <0.0010 <0.061 <0.00096 <0.0010 <0.0011 <0.00085 <0.00099 <0.00094 <0.0009517 82 0.0063 -- -- --Toluene<0.00090 <0.000881.7<0.00084 <0.000880.078<0.00075 <0.00087 <0.00083 <0.00083990 9,700 8.3 -- -- --1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA63 370 12 -- -- --1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA56 320 11 -- -- --m,p-Xylenes<0.0014 <0.001435<0.0014 <0.00140.073<0.0012 <0.0014 <0.0013 <0.0013120 500 9.8 -- -- --o-Xylene<0.00060 <0.0005912<0.00056 <0.000590.036<0.00050 <0.00058 <0.00055 <0.00056140 590 9.8 -- -- --Xylenes, total<0.0020 <0.002047<0.0019 <0.00200.11<0.0017 <0.0020 <0.0019 <0.0019120 530 9.9 -- -- --SVOCs (8270E)Acenaphthylene<0.015 <0.016 <0.017 <0.017 <0.016 <0.017 <0.015 <0.017 <0.017 <0.016NE NE NE -- -- --Benzo(a)anthracene 0.051 J<0.0095 <0.011 <0.011 <0.0099 <0.0110.11 J<0.010 <0.010 <0.00991.1 21 0.35 -- -- --Benzo(a)pyrene 0.065 J<0.0071 <0.0079 <0.0079 <0.0074 <0.00790.083 J<0.0076 <0.0077 <0.00740.11 2.1 0.12 -- -- --Benzo(b)fluoranthene 0.11 J<0.0074 <0.0081 <0.0081 <0.0077 <0.00820.14 J<0.0078 <0.0079 <0.00771.1 21 1.2 -- -- --Benzo(g,h,i)perylene 0.071 J<0.0078 <0.0087 <0.0087 <0.0082 <0.00870.058 J<0.0083 <0.0085 <0.0082NE NE NE -- -- --Benzo(k)fluoranthene 0.035 J<0.0084 <0.0093 <0.0093 <0.0088 <0.00940.038 J<0.0090 <0.0091 <0.008811 210 12 -- -- --Chrysene 0.069 J<0.0094 <0.010 <0.010 <0.0098 <0.0100.11 J<0.010 <0.010 <0.0098110 2,100 36 -- -- --2,4-Dimethylphenol<0.16 <0.17 <0.18 <0.18 <0.17 <0.18 <0.16 <0.18 <0.18 <0.17250 3,300 2.4 -- -- --Fluoranthene 0.065 J<0.0090 <0.010 <0.010 <0.0094 <0.0100.15 J<0.0096 <0.0098 <0.0094480 6,000 670 -- -- --Indeno(1,2,3-cd)pyrene 0.069 J<0.022 <0.025 <0.025 <0.023 <0.025 <0.022 <0.024 <0.024 <0.0231.1 21 3.9 -- -- --1-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA18 73 0.11 -- -- --2-Methylnaphthalene<0.015 <0.0154.8<0.017 <0.016 <0.017 <0.015 <0.016 <0.017 <0.01648 600 3.1 -- -- --Naphthalene<0.016 <0.0174.8<0.019 <0.0180.039 J<0.017 <0.018 <0.018 <0.0182.1 8.8 0.39 -- -- --Phenanthrene<0.0084 <0.00870.030 J<0.0096 <0.0091 <0.00970.067 J<0.0092 <0.0094 <0.0090NE NE NE -- -- --Pyrene 0.056 J<0.012 <0.013 <0.013 <0.012 <0.0130.16 J<0.012 <0.012 <0.012360 4,500 440 -- -- --RCRA Metals (6020B/7471B/7199)Arsenic 3.14.11.81.2 J2.81.2 J3.94.74.73.70.68 3.0 5.8 1.0 - 18 4.8 --Barium 90 38 12 J 92 76 29 73 41 50 31 3,100 47,000 580 50 - 1,000 356 --Cadmium<0.043 <0.045 <0.050 <0.0490.069 J<0.0500.41 J<0.047 <0.048 <0.04714 200 3.01.0 - 10 (3)4.3 (3)--Chromium (Total) 524216777111 J47614435NENENE7.0 - 30065--Hexavalent Chromium 0.62 J0.70 J<0.27 <0.25 <0.26 <0.270.50 J<0.25 <0.260.54 J0.31 6.5 3.8 NS NS --Trivalent Chromium 51.38 41.3 16 77 71 11 J 46.5 61 44 34.46 23,000 350,000 360,000 NS NS --Lead 19 8.2 5.8 3.0 8.3 6.9 44 11 11 7.5 400 800 270 ND - 50 16 --Mercury 0.034 J 0.13<0.0200.048 J 0.12<0.0200.067 0.15 0.15 0.11 2.3 9.7 1.0 0.03 - 0.52 0.121 --Selenium 1.7 1.5 1.2 J2.41.8 0.93 J 1.4 1.6 1.1 J 1.3 78 1,200 2.1 <0.1 - 0.8 0.42 --Silver<0.059 <0.062 <0.069 <0.068 <0.065 <0.069 <0.060 <0.065 <0.066 <0.06578 1,200 3.4ND - 5.0 (4)NS --PCBs (8082A)NA NA NA NA NA NA NA NA NA NANE NE NE -- -- --Lead (TCLP)NA NA NA NA NA NA NA NA NA NANE NE NE -- -- 5Notes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 20053) North Carolina background levels are not specified; therefore, background values are reported for soils of the southeastern United States.4) North Carolina background levels are not specified; therefore, background values are reported for soils of the conterminous United States.5) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level (May 2021).Bold values exceed DEQ Protection of Groundwater PSRGs (and the regional background concentrations for metals only).Underlined values exceed the DEQ Residential PSRGs (and the regional background concentrations for metals only).Gray highlighted values exceed the DEQ Industrial/Commercial PSRGs (and the regional background concentrations for metals only).Arsenic detections exceeding PSRGs are likely naturally-occurring based on published background levels.Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in milligrams per kilogram (mg/kg). TCLP data reported in milligrams per liter (mg/L).Trivalent chromium calculated as total chromium minus hexavalent chromium.Laboratory analytical methods are shown in parenthesesVOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act; TCLP = Toxicity Characteristic Leaching Procedure; PCBs= polychlorinated biphenylsNE = not established; NA = not analyzed; ND = non-detect; UST= underground storage tank; -- = not applicable; ft bgs = feet below ground surfaceJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limit.Former Gasoline USTs Former Dispenser IslandSB-1 SB-2Proposed Phase I Redevelopment Building FootprintEPA Maximum Concentration for TCLP(5)SB-3 SB-4Residential PSRGs(1)Industrial / Commercial PSRGs(1)Protection of Groundwater PSRGs(1)Published Background Metals Concentrations for North Carolina Soils (2)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-011 Dilworth Auto Service/EMP/Tables/EMP Data Tables_Dilworth Auto Service Rev1 10/5/2021Table 1 (Page 1 of 4) Hart & Hickman, PC
Table 1Summary of Soil Analytical ResultsDilworth Auto Service120 E. Kingston Ave; 1700-1728 South Blvd.; and101-115 East BlvdCharlotte, North CarolinaH&H Job No. WPP-011Sample IDLocation DescriptionDate11/18/20 11/18/20 11/18/20 11/17/20 11/17/20 11/18/20 11/16/20 11/16/20Depth (ft bgs)1-3 3-5 8-10 1-3 3-5 1-3 3-5 6-8Range MeanVOCs (8260D)Acetone<0.0015 <0.0017 <0.00180.036 0.015 J 0.050 0.023 0.016 J 12,000 140,000 25 -- -- --Benzene<0.00091 <0.0011 <0.0011 <0.00089 <0.00070 <0.00097 <0.00087 <0.000931.2 5.4 0.01 -- -- --Bromomethane<0.0029 <0.0033 <0.0034 <0.0028 <0.0022 <0.0030 <0.0027 <0.00291.4 6.4 0.05 -- -- --n-ButylbenzeneNA NA NA NA NA NA NA NA780 12,000 4.5 -- -- --sec-ButylbenzeneNA NA NA NA NA NA NA NA1,600 23,000 4.1 -- -- --tert-ButylbenzeneNA NA NA NA NA NA NA NA1,600 23,000 3.1 -- -- --Cyclohexane<0.00071 <0.000820.0050 J<0.00070 <0.00055 <0.00076 <0.00068 <0.000721,400 5,800 NE -- -- --Ethylbenzene<0.00088 <0.0010 <0.0010 <0.00086 <0.00068 <0.00093 <0.00084 <0.000896.1 27 13 -- -- --Isopropylbenzene (Cumene)<0.00068 <0.00078 <0.00080 <0.00067 <0.00052 <0.00072 <0.00065 <0.00069410 2,100 2.3 -- -- --p-IsopropyltolueneNA NA NA NA NA NA NA NANE NE NE -- -- --Methyl Acetate<0.00054 <0.00062 <0.00064 <0.00053 <0.00042 <0.00058 <0.00052 <0.0005516,000 230,000 29 -- -- --Methyl Butyl Ketone (2-Hexanone)<0.00041 <0.00047 <0.00048 <0.00040 <0.00031 <0.00043 <0.00039 <0.0004142 280 0.18 -- -- --Methyl Ethyl Ketone (2-Butanone)<0.0014 <0.0016 <0.0016 <0.0013 <0.0011 <0.0015 <0.0013 <0.00145,500 40,000 17 -- -- --Methyl Isobutyl Ketone<0.00048 <0.00055 <0.00056 <0.00047 <0.00037 <0.00051 <0.00046 <0.000487,000 30,000 0.45 -- -- --Methylcyclohexane<0.00035 <0.00040 <0.00041 <0.00034 <0.00027 <0.00037 <0.00033 <0.00035NE NE NE -- -- --Methylene Chloride<0.00095 <0.0011 <0.0011 <0.00093 <0.00073 <0.0010 <0.00090 <0.0009658 650 0.025 -- -- --Methyl-tert-Butyl Ether<0.00082 <0.00094 <0.00097 <0.00080 <0.00063 <0.00087 <0.00078 <0.0008349 220 0.09 -- -- --Naphthalene<0.00059 <0.00068 <0.00070 <0.00058 <0.00046 <0.00063 <0.00056 <0.000602.1 8.8 0.39 -- -- --n-PropylbenzeneNA NA NA NA NA NA NA NA780 5,100 2.6 -- -- --Tetrachloroethylene<0.0011 <0.0012 <0.0013 <0.0010 <0.00082 <0.0011 <0.0010 <0.001117 82 0.0063 -- -- --Toluene<0.00093 <0.0011 <0.0011 <0.00091 <0.00072 <0.00099 <0.00089 <0.00094990 9,700 8.3 -- -- --1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA63 370 12 -- -- --1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA56 320 11 -- -- --m,p-Xylenes<0.0015 <0.00170.0063 J<0.0015 <0.0012 <0.0016 <0.0014 <0.0015120 500 9.8 -- -- --o-Xylene<0.00062 <0.000720.0014 J<0.00061 <0.00048 <0.00066 <0.00059 <0.00063140 590 9.8 -- -- --Xylenes, total<0.0021 <0.00240.0077 J<0.0021 <0.0016 <0.0022 <0.0020 <0.0021120 530 9.9 -- -- --SVOCs (8270E)Acenaphthylene<0.016 <0.016 <0.019 <0.015 <0.016 <0.017 <0.016 <0.017NE NE NE -- -- --Benzo(a)anthracene<0.010 <0.010 <0.0120.048 J<0.00990.030 J<0.0099 <0.0101.1 21 0.35 -- -- --Benzo(a)pyrene<0.0075 <0.0075 <0.00880.038 J<0.00740.027 J<0.0074 <0.00760.11 2.1 0.12 -- -- --Benzo(b)fluoranthene<0.0077 <0.0077 <0.0091 <0.0072 <0.00770.039 J<0.0077 <0.00791.1 21 1.2 -- -- --Benzo(g,h,i)perylene<0.0082 <0.0082 <0.0097 <0.0077 <0.0082 <0.0083 <0.0082 <0.0084NE NE NE -- -- --Benzo(k)fluoranthene<0.0089 <0.0089 <0.010 <0.0083 <0.0088 <0.0089 <0.0088 <0.009011 210 12 -- -- --Chrysene<0.0099 <0.0099 <0.0120.048 J<0.00980.031 J<0.0098 <0.010110 2,100 36 -- -- --2,4-Dimethylphenol<0.17 <0.17 <0.20 <0.16 <0.17 <0.17 <0.17 <0.18250 3,300 2.4 -- -- --Fluoranthene<0.0095 <0.0095 <0.0110.074 J<0.00940.039 J<0.0094 <0.0097480 6,000 670 -- -- --Indeno(1,2,3-cd)pyrene<0.024 <0.024 <0.028 <0.022 <0.023 <0.024 <0.023 <0.0241.1 21 3.9 -- -- --1-MethylnaphthaleneNA NA NA NA NA NA NA NA18 73 0.11 -- -- --2-Methylnaphthalene<0.016 <0.016 <0.0190.026 J<0.016 <0.016 <0.016 <0.01748 600 3.1 -- -- --Naphthalene<0.018 <0.018 <0.0210.024 J<0.018 <0.018 <0.018 <0.0182.1 8.8 0.39 -- -- --Phenanthrene<0.0091 <0.0091 <0.0110.057 J<0.0091 <0.0092 <0.0090 <0.0093NE NE NE -- -- --Pyrene<0.012 <0.012 <0.0140.069 J<0.0120.037 J<0.012 <0.012360 4,500 440 -- -- --RCRA Metals (6020B/7471B/7199)Arsenic 4.33.60.99 J5.12.65.95.03.50.68 3.0 5.8 1.0 - 18 4.8 --Barium 46 28 25 110 24 150 30 20 3,100 47,000 580 50 - 1,000 356 --Cadmium<0.046 <0.047 <0.0540.47 J<0.0470.055 J<0.047 <0.04714 200 3.01.0 - 10 (3)4.3 (3)--Chromium (Total) 39 31 8.6 J 57 25 49 42 17 NE NE NE 7.0 - 300 65 --Hexavalent Chromium 0.27 J<0.25 <0.262.2<0.251.0 J0.54 J<0.260.31 6.5 3.8 NS NS --Trivalent Chromium 38.73 31 8.6 J 54.8 25 48 41.46 17 23,000 350,000 360,000 NS NS --Lead 13 6.4 126309.2 40 5.9 4.4 400 800 270 ND - 50 16 --Mercury 0.088 0.097<0.0220.13 0.16 0.091 0.21 0.29 2.3 9.7 1.0 0.03 - 0.52 0.121 --Selenium 1.0 J 1.3 1.0 J 1.8 2.02.60.94 J 1.5 78 1,200 2.1 <0.1 - 0.8 0.42 --Silver<0.064 <0.064 <0.0750.22 J<0.065 <0.066 <0.0650.082 J 78 1,200 3.4ND - 5.0 (4)NS --PCBs (8082A)NA NA NA NA NA NA NA NANE NE NE -- -- --Lead (TLCP)NA NA NA0.51NA NA NA NANE NE NE -- -- 5Notes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 20053) North Carolina background levels are not specified; therefore, background values are reported for soils of the southeastern United States.4) North Carolina background levels are not specified; therefore, background values are reported for soils of the conterminous United States.5) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level (May 2021).Bold values exceed DEQ Protection of Groundwater PSRGs (and the regional background concentrations for metals only).Underlined values exceed the DEQ Residential PSRGs (and the regional background concentrations for metals only).Gray highlighted values exceed the DEQ Industrial/Commercial PSRGs (and the regional background concentrations for metals only).Arsenic detections exceeding PSRGs are likely naturally-occurring based on published background levels.Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in milligrams per kilogram (mg/kg). TCLP data reported in milligrams per liter (mg/L).Trivalent chromium calculated as total chromium minus hexavalent chromium.Laboratory analytical methods are shown in parenthesesVOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act; TCLP = Toxicity Characteristic Leaching Procedure; PCBs= polychlorinated biphenylsNE = not established; NS = not specified; NA = not analyzed; ND = non-detect; UST= underground storage tank; -- = not applicable; ft bgs = feet below ground surfaceJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limit.Published Background Metals Concentrations for North Carolina Soils (2)Former Automotive Repair ShopEPA Maximum Concentration for TCLP(5)Heating Oil USTIndustrial / Commercial PSRGs(1)Protection of Groundwater PSRGs(1)SB-7Residential PSRGs(1)SB-5 SB-6https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-011 Dilworth Auto Service/EMP/Tables/EMP Data Tables_Dilworth Auto Service Rev1 10/5/2021Table 1 (Page 2 of 4) Hart & Hickman, PC
Table 1Summary of Soil Analytical ResultsDilworth Auto Service120 E. Kingston Ave; 1700-1728 South Blvd.; and101-115 East BlvdCharlotte, North CarolinaH&H Job No. WPP-011Sample IDLocation DescriptionDate11/18/20 11/18/20 11/18/20 11/18/20 11/18/20 11/18/20 11/18/20 11/18/20 11/18/20Depth (ft bgs)1-3 3-5 1-3 3-5 7-9 1-3 3-5 1-3 3-5Range MeanVOCs (8260D)Acetone 0.034 0.086<0.0013 <0.00120.020 J 0.15 0.023 J 0.020 0.021 J 12,000 140,000 25 -- -- --Benzene<0.00084 <0.00090 <0.00077 <0.00074 <0.0010 <0.00094 <0.00095 <0.00079 <0.00121.2 5.4 0.01 -- -- --Bromomethane<0.0026 <0.0028 <0.0024 <0.0023 <0.00330.013<0.0030 <0.0025 <0.00371.4 6.4 0.05 -- -- --n-ButylbenzeneNA NA NA NA NA NA NA NA NA780 12,000 4.5 -- -- --sec-ButylbenzeneNA NA NA NA NA NA NA NA NA1,600 23,000 4.1 -- -- --tert-ButylbenzeneNA NA NA NA NA NA NA NA NA1,600 23,000 3.1 -- -- --Cyclohexane<0.00066 <0.00071 <0.00060 <0.00058 <0.00082 <0.00073 <0.00074 <0.00062 <0.000921,400 5,800 NE -- -- --Ethylbenzene<0.00081 <0.000870.00084 J<0.00072 <0.0010 <0.00091 <0.00091 <0.00077 <0.00116.1 27 13 -- -- --Isopropylbenzene (Cumene)<0.00063 <0.00067 <0.00057 <0.00055 <0.00078 <0.00070 <0.00071 <0.00059 <0.00087410 2,100 2.3 -- -- --p-IsopropyltolueneNA NA NA NA NA NA NA NA NANE NE NE -- -- --Methyl Acetate 0.019 0.033<0.00046 <0.00044 <0.000620.018<0.00056 <0.00047 <0.0007016,000 230,000 29 -- -- --Methyl Butyl Ketone (2-Hexanone)<0.00037 <0.00040 <0.00034 <0.00033 <0.00047 <0.00042 <0.00042 <0.00035 <0.0005242 280 0.18 -- -- --Methyl Ethyl Ketone (2-Butanone)<0.0013 <0.0014 <0.0011 <0.0011 <0.00160.015 J<0.0014 <0.0012 <0.00185,500 40,000 17 -- -- --Methyl Isobutyl Ketone<0.00044 <0.00047 <0.00040 <0.00039 <0.00055 <0.00049 <0.00050 <0.00042 <0.000617,000 30,000 0.45 -- -- --Methylcyclohexane<0.00032 <0.00034 <0.00029 <0.00028 <0.00040 <0.00036 <0.00036 <0.00030 <0.00044NE NE NE -- -- --Methylene Chloride<0.00087 <0.00094 <0.00079 <0.00077 <0.0011 <0.00097 <0.00098 <0.00082 <0.001258 650 0.025 -- -- --Methyl-tert-Butyl Ether<0.00076 <0.00081 <0.00069 <0.00067 <0.00094 <0.00084 <0.00085 <0.00071 <0.001149 220 0.09 -- -- --Naphthalene<0.00054 <0.00059 <0.00050 <0.00048 <0.00068 <0.00061 <0.00061 <0.00051 <0.000762.1 8.8 0.39 -- -- --n-PropylbenzeneNA NA NA NA NA NA NA NA NA780 5,100 2.6 -- -- --Tetrachloroethylene<0.00098 <0.0010 <0.00089 <0.00086 <0.00120.0067<0.0011 <0.00092 <0.001417 82 0.0063 -- -- --Toluene<0.00086 <0.00092 <0.00078 <0.00076 <0.0011 <0.00096 <0.00097 <0.00081 <0.0012990 9,700 8.3 -- -- --1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA NA63 370 12 -- -- --1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA NA56 320 11 -- -- --m,p-Xylenes<0.0014 <0.00150.0029 J<0.0012 <0.0017 <0.0015 <0.0016 <0.0013 <0.0019120 500 9.8 -- -- --o-Xylene<0.00057 <0.000620.00096 J<0.00051 <0.00072 <0.00064 <0.00065 <0.00054 <0.00080140 590 9.8 -- -- --Xylenes, total<0.0019 <0.00210.0038 J<0.0017 <0.0024 <0.0022 <0.0022 <0.0018 <0.0027120 530 9.9 -- -- --SVOCs (8270E)Acenaphthylene<0.0160.021 J<0.014 <0.015 <0.017 <0.015 <0.016 <0.017 <0.017NE NE NE -- -- --Benzo(a)anthracene<0.0100.082 J 0.027 J<0.0093 <0.011 <0.0092 <0.0098 <0.010 <0.0101.1 21 0.35 -- -- --Benzo(a)pyrene<0.00750.067 J<0.0065 <0.0070 <0.0078 <0.0069 <0.0073 <0.0076 <0.00750.11 2.1 0.12 -- -- --Benzo(b)fluoranthene<0.00770.10 J 0.027 J<0.0072 <0.0081 <0.0071 <0.0076 <0.0079 <0.00781.1 21 1.2 -- -- --Benzo(g,h,i)perylene<0.00820.046 J<0.0071 <0.0077 <0.0086 <0.0076 <0.0081 <0.0084 <0.0083NE NE NE -- -- --Benzo(k)fluoranthene<0.00890.034 J<0.0077 <0.0083 <0.0093 <0.0082 <0.0087 <0.0090 <0.008911 210 12 -- -- --Chrysene<0.00990.096 J 0.019 J<0.0092 <0.010 <0.0091 <0.0097 <0.010 <0.0099110 2,100 36 -- -- --2,4-Dimethylphenol<0.17 <0.17 <0.15 <0.16 <0.18 <0.16 <0.17 <0.18 <0.17250 3,300 2.4 -- -- --Fluoranthene<0.00950.12 J 0.045 J<0.0089 <0.010 <0.0088 <0.0093 <0.0097 <0.0095480 6,000 670 -- -- --Indeno(1,2,3-cd)pyrene<0.0240.053 J<0.020 <0.022 <0.025 <0.022 <0.023 <0.024 <0.0241.1 21 3.9 -- -- --1-MethylnaphthaleneNA NA NA NA NA NA NA NA NA18 73 0.11 -- -- --2-Methylnaphthalene<0.0160.046 J<0.014 <0.015 <0.017 <0.015 <0.016 <0.017 <0.01648 600 3.1 -- -- --Naphthalene<0.0180.037 J<0.015 <0.017 <0.019 <0.016 <0.017 <0.018 <0.0182.1 8.8 0.39 -- -- --Phenanthrene<0.00910.073 J 0.036 J<0.0085 <0.0096 <0.0084 <0.0089 <0.0093 <0.0092NE NE NE -- -- --Pyrene<0.0120.11 J 0.036 J<0.011 <0.013 <0.011 <0.012 <0.012 <0.012360 4,500 440 -- -- --RCRA Metals (6020B/7471B/7199)Arsenic 2.55.40.79 J0.87 J2.63.84.25.33.30.68 3.0 5.8 1.0 - 18 4.8 --Barium 52 110 290 280 37 100 41 35 30 3,100 47,000 580 50 - 1,000 356 --Cadmium 0.065 J 0.19 J<0.041 <0.043 <0.0480.050 J<0.046 <0.047 <0.04614 200 3.01.0 - 10 (3)4.3 (3)--Chromium (Total) 314527322938424929NENENE7.0 - 30065--Hexavalent Chromium<0.260.37 J<0.23 <0.23 <0.290.85 J<0.25 <0.260.73 J0.31 6.5 3.8 NS NS --Trivalent Chromium 31 44.63 27 32 29 37.15 42 49 29 23,000 350,000 360,000 NS NS --Lead 67 110 3.3 4.6 42 29 6.5 9.2 8.8 400 800 270 ND - 50 16 --Mercury 0.081 0.23<0.016 <0.0170.065 J 0.032 J 0.085 0.061 J 0.23 2.3 9.7 1.0 0.03 - 0.52 0.121 --Selenium 1.62.41.7 1.8 1.72.31.32.2 2.578 1,200 2.1 <0.1 - 0.8 0.42 --Silver<0.0650.068 J<0.056 <0.059 <0.067 <0.060 <0.064 <0.065 <0.06478 1,200 3.4ND - 5.0 (4)NS --PCBs (8082A)NA NA NA NA NA NA NA NA NANE NE NE -- -- --Lead (TLCP)NA0.026 JNA NA NA NA NA NA NANE NE NE -- -- 5Notes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 20053) North Carolina background levels are not specified; therefore, background values are reported for soils of the southeastern United States.4) North Carolina background levels are not specified; therefore, background values are reported for soils of the conterminous United States.5) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level (May 2021).Bold values exceed DEQ Protection of Groundwater PSRGs (and the regional background concentrations for metals only).Underlined values exceed the DEQ Residential PSRGs (and the regional background concentrations for metals only).Gray highlighted values exceed the DEQ Industrial/Commercial PSRGs (and the regional background concentrations for metals only).Arsenic detections exceeding PSRGs are likely naturally-occurring based on published background levels.Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in milligrams per kilogram (mg/kg). TCLP data reported in milligrams per liter (mg/L).Trivalent chromium calculated as total chromium minus hexavalent chromium.Laboratory analytical methods are shown in parenthesesVOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act; TCLP = Toxicity Characteristic Leaching Procedure; PCBs= polychlorinated biphenylsNE = not established; NS = not specified; NA = not analyzed; ND = non-detect; UST= underground storage tank; -- = not applicable; ft bgs = feet below ground surfaceJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limit.Published Background Metals Concentrations for North Carolina Soils (2)Residential PSRGs(1)Industrial / Commercial PSRGs(1)Protection of Groundwater PSRGs(1)Former Heating Oil USTSB-10 SB-11Proposed Phase I Redevelopment Building FootprintEPA Maximum Concentration for TCLP(5)Proposed Two-Way StreetSB-9SB-8https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-011 Dilworth Auto Service/EMP/Tables/EMP Data Tables_Dilworth Auto Service Rev1 10/5/2021Table 1 (Page 3 of 4) Hart & Hickman, PC
Table 1Summary of Soil Analytical ResultsDilworth Auto Service120 E. Kingston Ave; 1700-1728 South Blvd.; and101-115 East BlvdCharlotte, North CarolinaH&H Job No. WPP-011Sample IDSB-12 SB-13 SB-14 SB-14A SB-15 SB-16 Location DescriptionFormer Service PitFormer Lumber FacilityFormer Dry CleanerDate11/16/20 11/16/20 11/16/20 8/2/21 11/16/20 11/17/20 11/17/20 11/17/20 8/2/21 8/2/21 8/2/21 8/2/21Depth (ft bgs)1-3 1-3 1-3 5-7 1-3 1-3 8-10 8-10 2-3 2-3 11-13 11-13Range MeanVOCs (8260D)Acetone 0.033<0.0013 <0.0020 NA <0.00140.016 J 0.16 0.20NA NA <2.7 <2.812,000 140,000 25 -- -- --Benzene<0.0010 <0.00078 <0.0012 NA <0.00086 <0.00100.0022 J 0.0034 JNA NA0.77 J 4.61.2 5.4 0.01 -- -- --Bromomethane<0.0032 <0.0025 <0.0039 NA <0.0027 <0.00320.014 0.018NA NA <1.2 <1.31.4 6.4 0.05 -- -- --n-ButylbenzeneNA NA NA NA NA NA NA NA NA NA3.714780 12,000 4.5 -- -- --sec-ButylbenzeneNA NA NA NA NA NA NA NA NA NA1.97.51,600 23,000 4.1 -- -- --tert-ButylbenzeneNA NA NA NA NA NA NA NA NA NA <0.100.85 J 1,600 23,000 3.1 -- -- --Cyclohexane<0.00080 <0.00061 <0.00096 NA <0.00068 <0.000790.0037 J 0.0045 JNA NA NA NA1,400 5,800 NE -- -- --Ethylbenzene<0.00099 <0.00075 <0.0012 NA <0.00083 <0.000980.0022 J 0.0027 JNA NA13526.1 27 13 -- -- --Isopropylbenzene (Cumene)<0.00076 <0.00058 <0.00092 NA <0.00065 <0.00076 <0.00067 <0.00090 NA NA4.1 16410 2,100 2.3 -- -- --p-IsopropyltolueneNA NA NA NA NA NA NA NA NA NA2.710NENENE---- --Methyl Acetate<0.000610.0018 J 0.0023 JNA <0.000510.0052 J 0.0024 J 0.016NA NA NA NA16,000 230,000 29 -- -- --Methyl Butyl Ketone (2-Hexanone)<0.00045 <0.00035 <0.00054 NA <0.00038 <0.000450.070 0.084NA NA <1.6 <1.642 280 0.18 -- -- --Methyl Ethyl Ketone (2-Butanone)<0.0015 <0.0012 <0.0018 NA <0.0013 <0.00150.18 0.22NA NA <2.1 <2.25,500 40,000 17 -- -- --Methyl Isobutyl Ketone<0.00054 <0.00041 <0.00064 NA <0.00045 <0.000530.026 0.033NA NA <1.8 <1.97,000 30,000 0.45 -- -- --Methylcyclohexane<0.00039 <0.00030 <0.00046 NA <0.00033 <0.000380.0042 J 0.0051 JNA NA NA NANE NE NE -- -- --Methylene Chloride<0.0011 <0.00081 <0.0013 NA <0.00090 <0.0011 <0.00094 <0.0013 NA NA <0.34 <0.3558 650 0.025 -- -- --Methyl-tert-Butyl Ether<0.00092 <0.00070 <0.0011 NA <0.00078 <0.00091 <0.00081 <0.0011 NA NA <0.19 <0.2049 220 0.09 -- -- --Naphthalene<0.00066 <0.00051 <0.00079 NA <0.00056 <0.000660.00064 J 0.00092 JNA NA3.6152.1 8.8 0.39 -- -- --n-PropylbenzeneNA NA NA NA NA NA NA NA NA NA5.7 22780 5,100 2.6 -- -- --Tetrachloroethylene<0.0012 <0.00091 <0.0014 NA <0.0010 <0.0012 <0.0010 <0.0014 NA NA <0.12 <0.2417 82 0.0063 -- -- --Toluene<0.0010 <0.000800.0013 JNA <0.00088 <0.0010 <0.00092 <0.0012 NA NA0.46 J 2.2 990 9,700 8.3 -- -- --1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA31 12063 370 12 -- -- --1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA NA NA13 4856 320 11 -- -- --m,p-Xylenes<0.0017 <0.0013 <0.0020 NA <0.0014 <0.00170.0051 J 0.0067 JNA NA15 57120 500 9.8 -- -- --o-Xylene<0.00070 <0.00053 <0.00084 NA <0.00059 <0.000690.0014 J 0.0019 JNA NA <0.100.76 J 140 590 9.8 -- -- --Xylenes, total<0.0024 <0.0018 <0.0028 NA <0.0020 <0.00230.0065 J 0.0086 JNA NA15 57.76 J120 530 9.9 -- -- --SVOCs (8270E)Acenaphthylene<0.018 <0.017 <0.017 NA <0.017 <0.017 <0.018 <0.020 NA NA <0.077 <0.082NE NE NE -- -- --Benzo(a)anthracene<0.011 <0.010 <0.010 NA <0.010 <0.010 <0.0110.040 JNA NA <0.070 <0.0751.1 21 0.35 -- -- --Benzo(a)pyrene<0.0080 <0.0075 <0.0078 NA <0.0077 <0.0078 <0.0080 <0.0092 NA NA <0.077 <0.0820.11 2.1 0.12 -- -- --Benzo(b)fluoranthene 0.026 J 0.022 J<0.0080 NA <0.0080 <0.0081 <0.00830.041 JNA NA <0.076 <0.0811.1 21 1.2 -- -- --Benzo(g,h,i)perylene<0.0088 <0.0083 <0.0085 NA <0.0085 <0.0086 <0.0088 <0.010 NA NA <0.11 <0.11NE NE NE -- -- --Benzo(k)fluoranthene 0.027 J<0.0089 <0.0092 NA <0.0092 <0.0093 <0.0095 <0.011 NA NA <0.068 <0.07311 210 12 -- -- --Chrysene<0.011 <0.010 <0.010 NA <0.010 <0.010 <0.0110.035 JNA NA <0.072 <0.078110 2,100 36 -- -- --2,4-Dimethylphenol<0.19 <0.17 <0.18 NA <0.18 <0.18 <0.19 <0.21 NA NA0.17 J 0.21 J 250 3,300 2.4 -- -- --Fluoranthene 0.028 J 0.049 J 0.022 JNA <0.0098 <0.00990.069 J 0.11 JNA NA <0.080 <0.086480 6,000 670 -- -- --Indeno(1,2,3-cd)pyrene<0.025 <0.024 <0.024 NA <0.024 <0.025 <0.025 <0.029 NA NA <0.11 <0.121.1 21 3.9 -- -- --1-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA1.0 1.518 73 0.11 -- -- --2-Methylnaphthalene<0.017 <0.016 <0.017 NA <0.017 <0.017 <0.017 <0.020 NA NA2.43.548 600 3.1 -- -- --Naphthalene<0.019 <0.018 <0.018 NA <0.018 <0.019 <0.019 <0.022 NA NA3.24.12.1 8.8 0.39 -- -- --Phenanthrene<0.00980.021 J<0.0095 NA <0.0094 <0.00960.030 J 0.039 JNA NA <0.079 <0.085NE NE NE -- -- --Pyrene<0.0130.041 J<0.013 NA <0.013 <0.0130.049 J 0.086 JNA NA <0.080 <0.086360 4,500 440 -- -- --RCRA Metals (6020B/7471B/7199)Arsenic 4.03.12.1NA2.25.23.72.6NA NA1.51.50.68 3.0 5.8 1.0 - 18 4.8 --Barium 32 26 26NA53 34 150 140NA NA39 120 3,100 47,000 580 50 - 1,000 356 --Cadmium<0.050 <0.047 <0.049 NA <0.048 <0.049 <0.050 <0.058 NA NA <0.0094 <0.009714 200 3.01.0 - 10 (3)4.3 (3)--Chromium (Total) 33 27 31NA16 110 12 J 11 JNA NA18 17 NE NE NE 7.0 - 300 65 --Hexavalent Chromium 1.1 J<0.25 <0.26 NA <0.260.60 J<0.27 <0.34 NA NA0.729 J0.481 J0.31 6.5 3.8 NS NS --Trivalent Chromium 31.9 27 31NA16 109.4 12 J 11 JNA NA17 17 23,000 350,000 360,000 NS NS --Lead 10 5.0 9.8NA12 8.5 15 12NA NA9.5 7.4 400 800 270 ND - 50 16 --Mercury 0.16 0.11 0.068NA0.045 J 0.088<0.020 <0.023 NA NA0.026 J<0.0152.3 9.7 1.0 0.03 - 0.52 0.121 --Selenium 1.5 1.4 1.6NA1.4 2.05.5 3.6NA NA0.26 J 0.14 J 78 1,200 2.1 <0.1 - 0.8 0.42 --Silver<0.069 <0.064 <0.067 NA <0.066 <0.068 <0.068 <0.079 NA NA0.078 J 0.11 J 78 1,200 3.4ND - 5.0 (4)NS --PCBs (8082A)NA NA NA ND NA NA NA NA ND ND NA NANE NE NE -- -- --Lead (TLCP)NA NA NA NA NA NA NA NA NA NA NA NANE NE NE -- -- 5Notes:1) North Carolina Department of Environmental Quality (DEQ) Preliminary Soil Remediation Goals (PSRGs) (June 2021).2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 20053) North Carolina background levels are not specified; therefore, background values are reported for soils of the southeastern United States.4) North Carolina background levels are not specified; therefore, background values are reported for soils of the conterminous United States.5) Environmental Protection Agency (EPA) Maximum Concentration of Contaminants for Toxicity Characteristic Leaching Procedure (TCLP) regulatory level (May 2021).Bold values exceed DEQ Protection of Groundwater PSRGs (and the regional background concentrations for metals only).Underlined values exceed the DEQ Residential PSRGs (and the regional background concentrations for metals only).Gray highlighted values exceed the DEQ Industrial/Commercial PSRGs (and the regional background concentrations for metals only).Arsenic detections exceeding PSRGs are likely naturally-occurring based on published background levels.Compound concentrations are reported to the laboratory method detection limits.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in milligrams per kilogram (mg/kg). TCLP data reported in milligrams per liter (mg/L).Trivalent chromium calculated as total chromium minus hexavalent chromium.Laboratory analytical methods are shown in parenthesesVOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act; TCLP = Toxicity Characteristic Leaching Procedure; PCBs= polychlorinated biphenylsNE = not established; NS = not specified; NA = not analyzed; ND = non-detect; UST= underground storage tank; -- = not applicable; ft bgs = feet below ground surfaceJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limit.Protection of Groundwater PSRGs(1)Published Background Metals Concentrations for North Carolina Soils (2)EPA Maximum Concentration for TCLP(5)Residential PSRGs(1)Industrial / Commercial PSRGs(1)New/Used Oil USTSB-17 / SB-DupFormer Automotive Repair ShopSB-19 / Soil-Dup-1Former Gasoline UST BasinSB-18 / Soil-Dup-2Former Automotive Repair Shophttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-011 Dilworth Auto Service/EMP/Tables/EMP Data Tables_Dilworth Auto Service Rev1 10/5/2021Table 1 (Page 4 of 4) Hart & Hickman, PC
Table 2Summary of Groundwater Analytical ResultsDilworth Auto Service120 E. Kingston Ave; 1700-1728 South Blvd.; and101-115 East BlvdCharlotte, North CarolinaH&H Job No. WPP-011Sample IDTMW-2 TMW-3 TMW-4 TMW-5 TMW-6 TMW-7Location DescriptionFormer Automotive Repair ShopHeating Oil USTFormer Automotive Repair ShopFormer Lumber FacilityFormer Dry CleanerDowngradient of Adjacent Gas StationDate11/18/20 11/18/20 11/18/20 11/17/20 11/17/20 11/17/20 11/18/20 11/18/20 VOCs (8260D)Acetone 300 J 320 J<0.31 <0.31 <0.31 <0.31 <0.313.7 J 6,000 4,500,000 19,000,000Benzene29,00030,00023<0.048 <0.048 <0.048 <0.0487.81.0 1.6 6.9Chloroform<7.6 <7.6 <0.076 <0.0761.40.76<0.0762.670 0.81 3.6Cyclohexane 160 160<0.95 <0.95 <0.95 <0.95 <0.95 <0.95NE 200 8601,2-Dichloroethane8889<0.066 <0.066 <0.066 <0.066 <0.066 <0.0660.40 2.2 9.81,1-Dichloroethylene<8.3 <8.3 <0.083 <0.083 <0.0830.57<0.083 <0.083350 39 160Ethylbenzene2,9003,0007.0<0.061 <0.061 <0.061 <0.061 <0.061600 3.5 15Isopropylbenzene (Cumene)110 1100.35 J<0.054 <0.054 <0.054 <0.054 <0.05470 180 750Methocyclohexane 150 J 160 J<0.94 <0.94 <0.94 <0.94 <0.94 <0.94NE NE NEMethyl Acetate 1,300 1,300<1.0 <1.0 <1.0 <1.0 <1.0 <1.0NE NE NEMethyl Butyl Ketone (2-Hexanone)220 J 220 J<0.065 <0.065 <0.065 <0.065 <0.065 <0.06540 (2)1,600 6,900Methyl Ethyl Ketone (2-Butanone) 440 J 500<0.24 <0.24 <0.24 <0.24 <0.24 <0.244,000 450,000 1,900,000Methyl Isobutyl Ketone150 J 150 J<1.0 <1.0 <1.0 <1.0 <1.0 <1.0100 (2)110,000 470,000Methyl-tert-Butyl Ether1,4001,400<0.042 <0.042 <0.0420.25 J<0.0420.37 J 20 450 2,000Naphthalene4504400.69 J<0.30 <0.30 <0.30 <0.30 <0.306.0 4.6 20Tetrachloroethylene<9.8 <9.8 <0.098 <0.098 <0.0980.74<0.098 <0.0980.70 12 48Toluene32,00034,00073 0.33 J 0.59<0.044 <0.0440.65 600 3,800 16,000Trichloroethylene<7.8 <7.8 <0.078 <0.078 <0.0782.0<0.0780.27 J 3.0 1.0 4.4m,p-Xylenes9,1009,40022<0.12 <0.12 <0.12 <0.12 <0.12500 71 300o-Xylene4,3004,50010<0.044 <0.044 <0.044 <0.044 <0.044500 98 410Xylenes, total13,00014,00032<0.15 <0.15 <0.15 <0.15 <0.15500 77 320SVOCS (8270E)Acetophenone<3.543<3.5 <3.6 <3.4 <3.5 <3.5 <3.5700 NE NE2-Methylnaphthalene74 55<1.3 <1.3 <1.2 <1.2 <1.3 <1.330 NE NE3/4-Methylphenol 7.8 J 6.0 J<2.6 <2.6 <2.5 <2.6 <2.6 <2.6NE NE NENaphthalene280170<1.4 <1.3 <1.3 <1.3 <1.3 <0.306.0 4.6 20RCRA Metals (6020B/7470A)Arsenic<0.17 <0.170.18 J 0.40 J 0.24 J<0.17 <0.17 <0.1710 -- --Barium 570 670 120 170 290 44 67 91 700 -- --Cadmium 0.22 J 0.20 J<0.160.22 J<0.16 <0.16 <0.16 <0.162.0 -- --Chromium<0.79 <0.791.2 J<0.79 <0.791.3 J 6.7<0.7910 -- --Lead 0.27 J<0.261.4 0.74 J 1.1 0.58 J<0.261.5 15 -- --Mercury<0.034 <0.034 <0.034 <0.034 <0.034 <0.034 <0.034 <0.0341.0 0.18 0.75Selenium 1.2 J 1.1 J 1.1 J 2.3 J 1.6 J 1.8 J<0.74 <0.7420 -- --Silver<0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.1120 -- --Notes:2) No 2L Standard has not been established; therefore, the Interim Maximum Allowable Concentration (IMAC) is shown.3) NC DEQ Division of Waste Management (DWM) Residential Vapor Intrusion Groundwater Screening Level (GWSL; June 2021)4) NC DEQ DWM Non-Residential Vapor Intrusion GWSL (June 2021)Bold values exceed the DEQ 2L Standard or IMAC.Underline values exceed the NC DEQ Residential GWSLGray highlighted values exceed the NC DEQ Non-Residential GWSLCompound concentrations are reported to the laboratory method detection limits.Compound concentrations are reported in micrograms per liter (µg/L).With the exception of metals, only constituents detected in at least one sample are shown in the table above.Laboratory analytical methods are shown in parentheses.VOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery ActJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limitNE = not established; UST = underground storage tank; -- = not applicableResidential GWSLs(3)Non-Residential GWSLs(4)2L Standards(1)1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) (April 2013)TMW-1/TMW-DupFormer Gasoline USTshttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-011 Dilworth Auto Service Phase II ESA & Brownfields/EMP/Tables/EMP Data Tables_Dilworth Auto Service9/2/2021Table 2 (Page 1 of 1) Hart & Hickman, PC
Table 3Summary of Soil Gas Analytical ResultsDilworth Auto Service120 E. Kingston Ave; 1700-1728 South Blvd.; and101-115 East BlvdCharlotte, North CarolinaH&H Job No. WPP-011Sample IDSG-1 SG-2 SG-4 SG-5 SG-6 SG-7 SG-8 SG-9 SG-10 SG-11 SG-12 SG-13Location DescriptionFormer Automotive Repair ShopFormer Lumber FacilityFormer UST BasinFormer Dispenser IslandsDate11/20/20 11/20/20 11/20/20 11/20/20 11/20/20 11/20/20 11/20/20 11/22/20 11/22/20 11/22/20 11/22/20 11/20/20 8/2/21 8/2/21VOCs (TO-15)Acetone 14 12<12 <1214 J 9.8 24 13 20 18 25 400<11 <860 <860 <860220,000 2,700,000Benzene 5.5 1.6 J<3.2 <3.221 J 27 279.8 6.3 4.3 9.1 2.996 4,4001,3001,40012 160Bromomethane<0.32 <0.64 <6.4 <6.4 <6.4 <0.645.0<0.32 <0.32 <0.32 <0.32 <0.32 <0.41 <31 <31 <3135 440Carbon disulfide 37 4.1 J<31 <3178 J 93 6.0 J 88 J 12 15 12 20<1.6 <120 <120 <1204,900 61,000Chloroform8.8 4.6 J<5.2 <5.244 J2.7 J5.63.05.5<0.26 <0.2612<0.24 <18 <18 <184.1 53Chloromethane<0.267.0<5.3 <5.3 <5.3 <0.53 <0.26 <0.26 <0.26 <0.26 <0.26 <0.26 <0.32 <2455 J<24630 7,900Cyclohexane 3.9 4.0 J 4,000 4,600<1716 35 12 21 34 520<0.87160 8,100 3,400 4,000 42,000 530,000Dichlorodifluoromethane 2.5 3.8 J<8.2 <8.2 <8.23.1 J 4.3 3.0 3.3 3.4 6.5 4.7<0.31 <2390<23700 8,8001,2-Dichloroethane<0.22 <0.44 <4.4 <4.4 <4.4 <0.44 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.30 <2291953.6 47EthanolNA NA NA NA NA NA NA NA NA NA NA NA18<3402,200<340NE NEEthyl Acetate<0.25 <0.50 <50 <50 <50 <0.50 <0.25 <0.251.9<0.25 <0.254.7<4.3 <320 <320 <320490 6,100Ethylbenzene655.2<3.8 <3.8 <3.89.7 4.7 13 2.5 9.0 10 32130 44,00011,00013,00037 4904-Ethyltoluene 38<0.53 <5.3 <5.3 <5.3 <0.53 <0.261.2 J<0.261.3 J 4.5 33 34 10,000 6,800 8,100 NE NEHeptane 49 6.1 850 920 71 200 130 100 16 96 180 15 17028,000 25,000 28,0002,800 35,000Hexane 7.7 4.9 4,5005,00075 84 120 29 22 100 480 19 27029,000 17,000 20,0004,900 61,000Isopropyl alcohol 6.3 7.0 J<3.3 <3.3 <3.318 18 13 20 15<0.17 <0.17 <4.5 <340410 J<3401,400 18,000Methyl Butyl Ketone (2-Hexanone)<0.26 <0.51 <5.1 <5.1 <5.1 <0.51 <0.26 <0.26 <0.2610<0.26 <0.26 <0.46 <35 <35 <35210 2,600Methyl Ethyl Ketone (2-Butanone) 2.7 3.7<60 <60 <605.7 11 4.9 7.9 3.7 15 52<2.0 <150180 J<15035,000 440,000Methyl Isobutyl Ketone<0.26 <0.51 <5.1 <5.1 <5.1 <0.51 <0.261.3 J<0.26 <0.26 <0.2620<0.43 <32 <32 <3221,000 260,000Methylene Chloride 2.5 4.3<7.7 <7.7 <7.73.5 3.2 3.8 3.3 4.3 6.9 2.4<1.6 <120430 J<1203,400 53,000Naphthalene3.0<2.1 <21 <21 <21 <2.1 <101.5 J<1.01.3 J 1.4 J6.6<0.592,7005103902.8 36Propylene<0.14 <0.28150 160 890 540 310 140 270 130 70<0.14 <1.2 <87160 J 130 J 21,000 260,000Styrene<0.15 <0.30 <3.0 <3.0 <3.0 <0.30 <0.15 <0.15 <0.15 <0.15 <0.15 <0.15 <0.2423 J 31 J 27 J 7,000 88,000Tetrachloroethylene 74 14<8.8 <8.8 <8.813 13 26 21 5.2 5.2 72 50 87 J 100 J 110 280 3,500Tetrahydrofuran<0.21 <0.42 <4.2 <4.2 <4.2 <0.42 <0.21 <0.21 <0.21 <0.21 <0.2115<1.5 <110 <110 <11014,000 180,000Toluene 250 57<15 <15120 270 210 240 95 150 62 82 1,000 5,300 12,000 14,000 35,000 440,000Trichlorofluoromethane 2.2 J<0.87 <8.7 <8.7 <8.7 <0.87 <0.431.7 J 1.9 J<0.437.5 5.6<0.85 <64 <64 <64NE NE1,2,4-Trimethylbenzene 84<0.59 <5.9 <5.9 <5.92.1 J<0.292.4 J 1.0 J 3.9 67 83 11034,00022,00026,000420 5,3001,3,5-Trimethylbenzene 35<0.52 <5.2 <5.2 <5.2 <0.52 <0.261.0 J<0.261.5 J 83 32 328,5007,6009,200420 5,300o-Xylene 74 4.2 J<3.7 <3.7 <3.76.4 3.4 8.6 1.8 J 8.5 64 52 1702,600 14,00016,000700 8,800m,p-Xylenes 270 21<7.7 <7.723 J 36 16 47 6.9 43 46 180 47025,00040,00048,000700 8,800Notes:1) North Carolina Department of Environment Quality (DEQ) Division of Waste Management (DWM) Residential Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) (June 2021)2) North Carlolina DEQ DWM Non-Residential SGSLs (June 2021)Bold values exceed the DEQ DWM Residential SGSL.Underlined values exceed the DEQ DWM Non-Residential SGSL.Compound concentrations are reported to the laboratory method detection limits.Only constituents detected in at least one sample are shown in the table above.Compound concentrations are reported in micrograms per cubic meter (μg/m3).Laboratory analytical method is shown in parentheses.VOCs = volatile organic compounds; NE = not established; UST = underground storage tankJ = estimated concentration between the laboratory method detection limit and the laboratory reporting limitResidential SGSLs (1)Non-Residential SGSLs(2) SG-3 / SG-Dup-11/20/20SG-14/SG-Dup8/2/21Former Gas StationProposed Phase I Redevelopment Building FootprintProposed Phase II Redevelopment Bulding Footprinthttps://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/White Point Partners (WPP)/WPP-011 Dilworth Auto Service Phase II ESA & Brownfields/EMP/Tables/EMP Data Tables_Dilworth Auto Service.xlsm9/9/2021Table 3 (Page 1 of 1) Hart & Hickman, PC
USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed May, 2020.
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DILWORTH AUTO SERVICE120 EAST KINGSTON AVE., 1700-1728 SOUTH BOULEVARD, AND 101-115 EAST BOULEVARD CHARLOTTE, NORTH CAROLINA
DATE: 12-10-20
JOB NO: WPP-011
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2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
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SB-11
SB-5
SB-4
SB-7/TMW-3
SB-8
SB-10
SB-15/TMW-5
SB-16/TMW-6
SB-17
REVISION NO. 0
JOB NO. WPP-011
DATE: 8-24-21
FIGURE NO. 2
DILWORTH AUTO SERVICE
120 EAST KINGSTON AVE., 1700-1728 SOUTH
BOULEVARD, AND 101-115 EAST BOULEVARD
CHARLOTTE, NORTH CAROLINA
SITE AND SAMPLE LOCATION MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
E
A
S
T

K
I
N
G
S
T
O
N

A
V
E
N
U
E
WALGREENS
(1728 SOUTH BOULEVARD)
ESSEXRICHARDS
(1701 SOUTH BOULEVARD)
NOTES:
1. PARCEL BOUNDARY DATA AND AERIAL IMAGERY
OBTAINED FROM MECKLENBURG COUNTY GIS, 2020.
2. FORMER TANK BASIN AND DISPENSER ISLAND
LOCATIONS AT 1700 SOUTH BOULEVARD OBTAINED
FROM BUXTON ENVIRONMENTAL, INC. FIGURE 2 SITE
LAYOUT MAP.
3. FORMER UST LOCATIONS AT 1728 SOUTH BOULEVARD
OBTAINED FROM MOUNTAIN ENVIRONMENTAL
SERVICES, INC. CLOSURE REPORT DATED MAY 3, 1999
AND GEO-ENVIRONMENTAL CONSULTANTS, INC. UST
CLOSURE REPORT DATED AUGUST 19, 1999.
4. UST = UNDERGROUND STORAGE TANK
FORMER
TANK BASIN
FORMER
DISPENSER
ISLANDS
FORMER GAS STATION
BUILDING
(1951 & 1953
SANBORN MAPS)
FORMER TIRE SHOP
(1940s & 1950s)
GASOLINE USTs
(1951 & 1953
SANBORN MAPS)
E
A
S
T

B
O
U
L
E
V
A
R
D SOUTH B
OUL
EVARDCAMDEN ROADVACANT COMMERCIAL
BUILDING
(1714 SOUTH BOULEVARD)
FORMER DRY CLEANER
(113/115 EAST BOULEVARD)
PARKING
AREA
VACANT LAND
(FORMERLY 1700 SOUTH BOULEVARD)
VACANT COMMERCIAL
BUILDING
(1708 SOUTH
BOULEVARD)
VACANT COMMERCIAL
BUILDING
(120 EAST KINGSTON AVENUE)
FORMER FILLING STATION
(1929 & 1953 SANBORN MAPS)
FORMER AUTO REPAIR SHOP
(1969 SANBORN MAP)
FORMER VEHICLE
SERVICE PIT
SG-12
SG-13
SG-14SB-18
SB-14A
LEGEND
BROWNFIELDS SITE PROPERTY BOUNDARY
PARCEL BOUNDARY LINE
RAILROAD
APPROXIMATE EXTENT OF BASEMENT
HEATING OIL UST
NEW/USED OIL UST
FORMER NEW/USED OIL UST
FORMER GASOLINE UST
FORMER HEATING OIL UST
SOIL SAMPLE LOCATION
GROUNDWATER SAMPLE LOCATION
SOIL AND GROUNDWATER SAMPLE
LOCATION
EXTERIOR SOIL GAS SAMPLE LOCATION
SB-19
S:\AAA-Master Projects\White Point Partners (WPP)\WPP-011 Dilworth Auto Service Phase II ESA & Brownfields\Brownfields Assessment\Figures\WPP.011_20210824.dwg, FIG.2, 8/31/2021 3:27:08 PM, shaynesMET DESIGN ON SOUTH
(1719 SOUTH BOULEVARD)
SHELL STATION
(201 EAST BOULEVARD)
GRACE COVENANT
CHURCH
(1800 SOUTH BOULEVARD)

Appendix A Site Redevelopment Plan
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L
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Y RESIDENTIALENTRANCE CANOPYEXISTING
HISTORIC
BUILDING
FUTURE
OFFICE
BUILDING
FUTURE
OFFICE
BUILDING
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R SIDEWALKTW O-WAY STREET59'-8 1/2"
P A R KIN G
R ES IDENTIAL LO BBY ENTRYP
E
D
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R
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W ALG REENS D R IVE TH RUASCENT SOUTH END
PROPOSED RESIDENTIAL
BUILDING EAST KINGSTON AVENUESOUTH BOULEVARDEAST BOULEVARDCLT BLUE LINECAMDEN ROAD8'8'16'0
PLAN NORTH
PROJECT
OWNER
3222 N. St. NW Suite 500
Washington, DC 20007
t. 202.600.7230
f. 202.600.7280
[e-mail]
STRUCTURAL ENGINEERING
ME ENGINEERING
PLUMBING ENGINEERING
CIVIL ENGINEERING
LANDSCAPE ARCHITECT
INTERIOR DESIGN
LIGHTING DESIGN
The SK&A Group
12435 Park Potomac Ave.
Suite 300
Potomac, MD 20854
t. 301-881-1441
www.skaengineers.com
PDI Engineering
Address
Address
t. 000-000-0000
www.websitehere.com
Boda Plumbing/TEG
Address
Address
t. 000-000-0000
www.websitehere.com
Design Resource Group
2459 Wilkinson Blvd.
Charlotte, NC 28208
t. 703-343-0608
www.designresourcegroup.com
Dix Hite
150 West Jessup Avenue
Longwood, FL 32750
t. 407-667-1777
www.dixhite.com
EOA Group
1929 Ponce De Leon Blvd.
Coral Gables, FL 33134
t. 305-444-0990
www.eoagroup.com
Company Name
Address
Address
t. 000-000-0000
www.websitehere.com
© 2020 R2L Architects
SCALE:1/16" = 1'-0"
SITE
A001
GREYSTAR
ASCENT SOUTH END
South Boulevard & East Kingston
Charlotte, NC, 28203
1/16" = 1'-0"1 SITE CONTEXT PLAN
REV NO DATE ISSUE
1 01/02/21 100% SD SUBMISSION
2 02/16/21 50% DD SUBMISSION
3 04/09/21 100% DD SUBMISSION
4 07/02/21 30% CD SUBMISSION
0102030405060708091011
AA
BB
CC
DD
EE
FF
GG
UP
SE. 2
PE. 3
PE. 3
PE. 1
SE.1
UP
UP
DN
UP
DN
A300
01
01
02
02
03
03
04
04
05
05
06
06
07
07
08
08
09
09
10
10
11
11
AA
BB
CC
DD
EE
FF
GG
LOW HEAD ROOM
APP. 12' TO BOTTOM OF SLAB
ABOVEPEDESTRIAN ALLEY19'-0"25'-0"25'-0"25'-0"25'-0"25'-0"25'-0"25'-0"25'-0"19'-0"DRIVE THRU UNDER BUILDINGDRIVE UP WINDOW745.46
743.32743.00
746.5
1
A302
1
A3031
1
A311
RAMP UP TO GARAGE @ 16.4%PARKING
RETAIL ELEV. LOBBYRESIDENTIAL LOBBY ENTRY
PEDESTRIAN ENTRYLOADING 1LOADING 2WALGREENS DRIVE THRU
EGRESS CORRIDORTWO-WAY STREET
15'-0"25'-0"20'-0"20'-0"25'-0"19'-0"EXISTING HISTORIC BUILDING
MONUMENT SIGN
DRIVE THRU WALGREENS
SIGNAGE
P300
1
30' TRUCK
55' TRUCKFULL TRAILER LOADING AREA29'-3"15'-5"24'-0"
23'-0"
FIRE
CONTROL
ROOM
107
WATER
SERVICES
ROOM
108
RETAIL
ELEVATOR
LOBBY
109
RESIDENTIAL
ELEVATOR
LOBBY
101
115A
BIKE
STORAGE
117
MAIN MDF
124
MAINTENANCE
OFFICE/DOCK
MANAGER
122A
GENERATOR
ROOM
127
MAIN
ELECTRICAL
ROOM
126
WALLGREENS
TRASH
121RESIDENTIAL
TRASH &
RECYCLING
129
FIRE
PUMP
118
LOADING
AREA
123
4,215 SF
RETAIL
130
9,342 SF
WALLGREENS
131
ENTRY
VESTIBULE
102
BOH
ELEVATOR
LOBBY
116
STAIR A
SA
GAS
METERS
125
BOH
CORRIDOR
115
BOH
CORRIDOR
119
LOADING
AREA PULL-IN
128
102B
107A
107B
131B
116A
117B
117A
118B
119B
120B
123A
124A
122A
127A126B
126A
119A
129A
120A
121A
115B
103A
106A
111A
105A
114A
113A
BATHROOM
106
ASST MNGR
111
MANAGER
112
IDF / MDF / AV
/SECURITY
113
LEASING BOH
114
LEASING
OFFICE
110
MAIL ROOM
104
108A
118A
101B
LOBBY
103
OH1
OH2
OH316'-0 1/2"4'-11"
PROVIDE
BOLLARDS
4' O.C
RESTROOM
122B
122B
8'-8"
171 SF
STAIR B
UNDERGROUND
TRANSFORMER VAULT
20'-10 7/8"PACKAGE
ROOM
105
T50064'-7"112A
976
PROVIDE
BOLLARDS 6'-2"6'-2"SHEET NOTES
KEYNOTES
LEGEND
KEY PLAN
CMU WALL
CONC. COLUMNS/SHEAR WALLS
SLOPED COLUMNS
GREEN ROOF/ PLANTER
ROOF PAVERS
POOL COATING
WOOD DECK
SPLIT-SLAB WATERPROOFING
TRAFFIC COATING
FLOOR/ROOF DRAIN, SEE PLUMBING
PROPERTY LINE
FIRE EXTINGUISHER & CABINET
TRENCH DRAIN, SEE PLUMBING
P-F
PARKING SPACE
TYPE: F=FULL SIZE
C=COMPACT
HC=HANDICAP
TYPE A UNIT PER ANSI 117.1-2009
FD
3
3 WALL TAG, REFER TO A-700
PARTITION TYPE SHEET
WALL TAG, SYMBOL LOCATION
DENOTES SIDE OF PARTITION
THAT RECEIVES (2) LAYERS OF
GWB; REFER TO A-700 PARTITION
TYPE SHEET
SURFACE-MOUNT
RECESSED
1 STAIR PRESSURIZATION SHAFT,
COORD W/ MECH DWGS
2 MECH OUTSIDE AIR SHAFT,
COORD W/ MECH DWGS
6 ELEC CONDUIT LOCATION /
SHAFT, COORD W/ ELEC DWGS
7 RESIDENTIAL ELEC ROOM,
COORD W/ ELEC DWGS
3 TRASH / RECYCLING CHUTES
4 TRASH ROOM EXHAUST SHAFT,
COORD W/ MECH DWGS
9 GENERATOR INTAKE, COORD
W/ MECH DWGS
10 GENERATOR EXHAUST,
COORD W/ MECH DWGS
8 JANITOR CLOSET MOP
FAUCET & BASIN
18 TRANSFORMER ROOM EXHAUST,
COORD W/ ELEC & MECH DWGS
11 KNOX-BOX ON WALL AT 48"
ABOVE WALKING SURFACE
12 BICYCLE RACKS, COORD W/
LANDSCAPE DWGS
13 ENCLOSED BICYCLE RACK,
REFER TO SPECS
14 VEGETATION PLANTER, REFER
TO LANDSCAPE DWGS
15 THROUGH-WALL SCUPPER,
LEADER & SPLASH BLOCK
16 ELECTRIC VEHICLE CHARGING
STATION
17 FIRE DEPT CONNECTION, BY
OTHERS
19 STEEL BOLLARD
20 STEEL CORNER GUARD
21 HANDICAP ACTUATOR
23 WIRE MESH SECURITY FENCE &
GATE, SUPPLY REQD SUPPORT
TO RECEIVE HARDWARE
24 STORMWATER RISER PIPE,
LOCATION SHOWN FOR
REFERENCE ONLY; REFER TO
PLUMB DWGS FOR FINAL
LOCATION, SIZING, & RISER
DIAGRAM
25 BIKE REPAIR STATION, PROVIDE
MIN CLEAR REQUIREMENTS PER
PRODUCT INSTALLATION
INSTRUCTIONS
26 FREEZE PROOF HOSE BIBB
5 CANE DETECTION DEVICE
(PAINTED MTL RAILING)
100 DOOR TAG
1. REFER TO T002 FOR ADDITIONAL NOTES, ABBREVIATIONS, & SYMBOLS.
2. REFER TO A300 SERIES BUILDING ELEVATIONS FOR WINDOW & TERRACE
DOOR TYPES, RAILINGS, AND EXTERIOR WALL CONDITIONS.
3. REFER TO A500 SERIES FOR ACCESSIBILITY DIAGRAMS, BATHROOM
REQUIREMENTS, AND KITCHEN DETAILS. PROVIDE CONCEALED FIRE-
TREATED BLOCKING OR STEEL STRAPPING FOR PARTITION-MOUNTED
EQUIPMENT, FIXTURES, MILLWORK, AND AT GRAB BAR & SHOWER SEAT
LOCATIONS WHERE REQUIRED.
4. REFER TO A700 SERIES FOR PARTITION SCHEDULE, FIRE RESISTANCE
RATED WALL TYPES, & FLOOR / CEILING ASSEMBLIES.
5. REFER TO LANDSCAPE DRAWINGS FOR PLANTINGS & PAVING DETAILS AT
OUTDOOR AREAS CROSS & DRAINAGE SLOPES AT PAVER & DECKING
PEDESTRIAN SURFACES SHALL NOT EXCEED 2%.
6. REFER TO ID DRAWINGS FOR UNIT FINISHES, AMENITY FINISHES &
DOCUMENTATION, AND FFE SELECTION (FURNITURE SHOWN IN A-SERIES
FOR REFERENCE ONLY, FURNITURE N.I.C. BY OTHERS).
8. ALL INTERIOR DRYWALL PARTITIONS SHALL BE TYPE 1A U.N.O.
9. WHERE PARTITIONS OF DIFFERENT TYPES ARE SHOWN ABUTTING AND ALIGNING,
ALIGN FINISH FACE OF PARTITIONS AS SHOWN ON DRAWINGS.
10. AT INTERIOR DOORS, INSIDE FACE OF HINGE-SIDE JAMB SHALL BE 4" FROM FACE
OF ADJACENT INTERSECTING PARTITION, U.N.O.
11. AT INTERIOR DOORS INSTALLED IN MASONRY PARTITIONS, INSIDE FACE OF HINGE-
SIDE JAMB SHALL BE 8" FROM FACE OF ADJACENT INTERSECTING PARTITION, U.N.O.
12. PROVIDE WATERPROOFING AT INTERIOR FACES & FLOORS OF CMU ENCLOSED
SHAFTS THAT ARE EXPOSED TO WEATHER.
13. SKIM COAT & PAINT ALL EXPOSED COLUMNS IN FINISHED INTERIOR SPACES.
14. ALL BALCONY WALKING SURFACES & EDGES TO RECEIVE PEDESTRIAN TRAFFIC
COATING. UNDERSIDE OF BALCONIES TO RECEIVE CEMENTITIOUS MIX TO PREPARE
SURFACE AND FINISHED WITH CEMENTITIOUS THIN COAT & PAINT.
15. IN PARKING & LOADING AREAS, PROVIDE STRUCTURAL STEEL PROTECTION
BARRIER FOR ALL MECHANICAL, ELECTRICAL, AND PLUMBING EQUIPMENT THAT
MAY BE SUBJECTED TO VEHICULAR DAMAGE. STRUCTURAL STEEL BARRIERS
SHALL BE CONSTRUCTED OF 2"x2" STEEL ANGLE AND PAINTED YELLOW.
16. GROUT SOLID & REINFORCE BOTTOM 42" OF CMU WALLS WHERE EXPOSED TO
AUTOMOBILE TRAFFIC. REFER TO STRUCTURAL DRAWINGS FOR REQUIREMENTS.
17. MAINTAIN THE FOLLOWING CLEAR HEIGHTS IN GARAGE AREAS:
A. 8' -4" MIN: DRIVE AISLES, RAMPS, & STALLS FOR HC-VAN ACCESSIBLE
PARKING SPACES
B. 7' -4": DRIVE AISLES AND RAMPS
C. 6' -8": ALL FULL & COMPACT PARKING SPACES
18. ACCESSIBLE PARKING SPACE AND ACCESS AISLE ARE DIMENSIONED TO THE
CENTERLINE OF STRIPING
19. ELEVATION OF DRAINS IN GARAGE, LOADING & TRASH ROOMS SHALL BE 4"
BELOW FLOOR ELEVATION LISTED, TYP, U.N.O.
27 PLUMBING SHAFT, CCORD W/
MECH DWGS
0'8'12'4'2'
PLAN NORTH
PROJECT
OWNER
3222 N. St. NW Suite 500
Washington, DC 20007
t. 202.600.7230
f. 202.600.7280
[e-mail]
STRUCTURAL ENGINEERING
ME ENGINEERING
PLUMBING ENGINEERING
CIVIL ENGINEERING
LANDSCAPE ARCHITECT
INTERIOR DESIGN
LIGHTING DESIGN
The SK&A Group
12435 Park Potomac Ave.
Suite 300
Potomac, MD 20854
t. 301-881-1441
www.skaengineers.com
PDI Engineering
Address
Address
t. 000-000-0000
www.websitehere.com
Boda Plumbing/TEG
Address
Address
t. 000-000-0000
www.websitehere.com
Design Resource Group
2459 Wilkinson Blvd.
Charlotte, NC 28208
t. 703-343-0608
www.designresourcegroup.com
Dix Hite
150 West Jessup Avenue
Longwood, FL 32750
t. 407-667-1777
www.dixhite.com
EOA Group
1929 Ponce De Leon Blvd.
Coral Gables, FL 33134
t. 305-444-0990
www.eoagroup.com
Company Name
Address
Address
t. 000-000-0000
www.websitehere.com
© 2020 R2L Architects
SCALE:1/8" = 1'-0"
01 LEVEL PLAN (LOBBY)
A201
GREYSTAR
ASCENT SOUTH END
South Boulevard & East Kingston
Charlotte, NC, 28203
1/8" = 1'-0"1 01 LEVEL FLOOR PLAN (LOBBY) - LOADING OPTION A
REV NO DATE ISSUE
1 01/02/21 100% SD SUBMISSION
2 02/16/21 50% DD SUBMISSION
3 04/09/21 100% DD SUBMISSION
4 07/02/21 30% CD SUBMISSION
3

Appendix B Grading Plan and Cut/Fill Analysis
743744746
743
WP Kingston LLC
74474
5
746
7
4
5
744
744745746745
745JDH & Associates Inc.(ET AL)
Lot 3 & Part of Lot 2, Block 4
JDH & Associates Inc. (ET AL)747747
747
745745
745
745
741
UP
UP
UP
DN
UP
DN
LOW HEAD ROOM
APP. 12' TO BOTTOM OF SLAB
ABOVE EAST KINGSTON AVE.SOUTH BOULEVARDPEDESTRIAN ALLEYDRIVE THRU UNDER BUILDINGDRIVE UP WINDOWRAMP UP TO GARAGE @ 16.4%WALGREENS
PHARMACYAREA
TWO-WAY STREET
UNDERGROUND
TRANSFORMER VAULT
MONUMENT SIGN
UP
UP
UP
DN
UP
DN
LOW HEAD ROOM
APP. 12' TO BOTTOM OF SLAB
ABOVE EAST KINGSTON AVE.SOUTH BOULEVARDPEDESTRIAN ALLEYDRIVE THRU UNDER BUILDINGDRIVE UP WINDOWRAMP UP TO GARAGE @ 16.4%WALGREENS
PHARMACYAREA
TWO-WAY STREET
UNDERGROUND
TRANSFORMER VAULT
MONUMENT SIGN
E. KINGSTON AVE.COMMERCIAL WIDE / OTHER SECONDARYSOUTH BLVD.
4+ AVENUE, BUFFERED/SEPARATED
BIKE LANES, ON-STREET PARKINGEAST BLVD.4 AVENUE, BIKE LANESCopyright © 2021 Design Resource Group, PA This plan or drawing and any accompanying documents or calculations are the property of Design Resource Group, PA; and are intended solely for the use of the recipient noted. No third party use or modification is permitted without written authorization.
SCALE: 1" = 20'
PROJECT #: 613-004
DRAWN BY:DK
CHECKED BY: TH
10 0
CUT FILL
GRADING PLAN
PRELIMINARY
SOUTH END APARTMENTSCHARLOTTE, NORTH CAROLINAGREYSTAR GB II, LLC521 EAST MOREHEAD STREET, SUITE 400CHARLOTTE, NC 28202704.379.18681-1
AUGUST 20, 2021
REVISIONS:
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
TRANSPORTATION PLANNING
2459 Wilkinson Blvd, Ste 200 Charlotte, NC 28208
704.343.0608
www.drgrp.com
N
O
P
W
10 20
approximate proposed location of temporary sediment basin

Appendix C Building Foundation Plans
0102030405060708091011ABCDEFG100135164165167168RAMP UP5" SLAB-ON-GRADE RAMPELEVATORSEELEVATORPE. 1ELEVATORPE. 3ELEVATORPE. 2ELEVATOR1SW-1SW-2SW-4SW-3SW-7SW-6SW-94P6P-1' - 0"7P-2' - 0"3P3P15'-0"25'-0"20'-0"20'-0"25'-0"19'-0"19'-0"25'-0"25'-0"25'-0"25'-0"25'-0"25'-0"25'-0"25'-0"19'-0"1531541551471451341481561581591601501411301191181171281271161151261381251141041051061241231221125" SLAB-ON-GRADE8" SLAB-ON-GRADE8"5"8"5"8"5"8"5"11313'-6"-5' - 6"56" THICK56" THICK-2' - 0"-1' - 0"56" THICK41' - 0 1/8"12' - 0"13'-6"5' - 1"21' - 5"5' - 1"PILES TO RESIST 100K NET UPLIFTPILES TO RESIST 150K NET UPLIFT#9@10", E.W., TOP & BOT.#11@8", E.W., TOP & BOT.#9@10", E.W., TOP & BOT.PILES TO RESIST 150K NET UPLIFT-6' - 6"-5' - 6"DIVIDER BM, W8 TYP.DIVIDER BM, W8 TYP.1071081091101031024P4P6P4P4P6P4P6P4P3P4P6P7P6P6P4P6P6P6P5P5P2P3P3P6P6P4P4P6P2P6P3P2P2P3P4P4P3P4P6P6P4P4P3P7P6P6P4P6P4P3P4P7P4P6P5P5P5P6P3P3P4' - 10"17' - 5"4' - 10"149-1' - 0"-1' - 0"-1' - 0"-1' - 0"-3' - 0"-3' - 0"-3' - 0"-3' - 0"-3' - 0"-3' - 0"-2' - 0"-3' - 0"-3' - 0"-1' - 0"-3' - 0"-2' - 0"-3' - 0"-1' - 0"-3' - 0"-3' - 0"-1' - 0"-1' - 0"-1' - 0"-2' - 0"-1' - 0"-3' - 0"-1' - 0"-1' - 0"-1' - 0"-1' - 0"-1' - 0"-2' - 0"-1' - 0"-3' - 0"-3' - 0"-3' - 0"-1' - 0"-3' - 0"-1' - 0"-3' - 0"-3' - 0"-1' - 0"-1' - 0"-1' - 0"-3' - 0"-3' - 0"1111211321431521621631361726P1391731571691701711611511421311202P18' - 0"-1' - 0"-1' - 0"-1' - 0"6P-6' - 6"-2' - 0"-1' - 0"4P140CONCRETE WALL SUPPORTING S.O.G. RAMP W/ CONCRETE UPTURNED BEAM ALONG RAMP 8X42, TYP.GRADE BEAM @ RAMP ENTRANCETEMP. REINF., SEE SCHED.GRADE BEAM@ SLOPEDCOLUMNS146137144GRADE BEAM@ SLOPEDCOLUMNST/BM = -1' - 0"6S3016S3011S3017S3015S3014S3014S3014S3014S3011S204133SW-0-3' - 0"166-3' - 0"6P-1' - 0"-3' - 0"-3' - 0"-3' - 0"-3' - 0"-3' - 0"-1' - 0"-1' - 0"-3' - 0"-1' - 0"-1' - 0"-1' - 0"-1' - 0"2' - 3"2' - 3"2' - 3"2' - 3"4' - 6" 4' - 6"2' - 3" 4' - 6" 4' - 6" 2' - 3"GRADE BEAM@ 2P PILE CAP4P(-1'-0")DENOTES: NUMBER OF PILES/PILE CAPDENOTES: TOP OF PILE CAP ELEVATIONN0'8'12'4'2'PLAN NORTHPROJECTOWNER3222 N St NW Suite 500Washington, DC 20007T 202.600.7230F 202.600.7280www.r2l-architects.comSTRUCTURAL ENGINEERINGMECHANICAL ENGINEERINGCIVIL ENGINEERINGLANDSCAPE ARCHITECTKilgore Industries LP2600 Longhorn Blvd Suite 106AAustin, TX 78758T 512.617.0011www.kilgoreind.com© 2020 R2L ArchitectsSHEET NAMEDRAWING NUMBERSCALESmislova, Kehnemui & Associates12435 Park Potomac Ave Suite 300 Potomac, MD 20854T 301.881.1441www.skaengineers.comProject # 1-21007-0Power Design, Inc.11600 9th St NSt. Petersburg, FL 33716T 727.210.0492www.powerdesigninc.comELEC. & PLUMB. ENGINEERINGBig Red Dog | WGI2021 East 5th St Suite 200Austin, TX 78702T 512.669.5560www.wginc.comTBG Partners1705 Guadalupe Street #500Austin, TX 78701T 512.327.1011www.tbgpartners.comINTERIOR DESIGNMichael Hsu Office of Architecture 4910 Burnet RoadAustin TX 78756T 512.706.4303www.hsuoffice.com1545 Peachtree Street NEAtlanta, GA, 30309East BoulevardCharlotte, NC, 28203ASCENT SOUTH END GREYSTAR202/16/21 50% DESIGN DEVELOPMENT304/09/21100% DESIGN DEVELOPMENT407/02/21 30% CONSTRUCTION DOCUMENTAs indicatedGROUND FLOORFRAMING/FOUNDATIONPLANS1011/8" = 1'-0"GROUND FLOOR FRAMING/FOUNDATION PLAN1. SLAB-ON-GRADE SHALL BE 5 INCH OR 8 INCH THICK, 4500 PSI CONCRETE PLACED OVER 10 MIL CLASS A VAPOR BARRIER AND 4" MIN. GRAVEL FILL. REINFORCE 5 INCH THICK SLAB WITH 6x6-W2.0xW2.0 WELDED WIRE MESH PLACED 2" BELOW TOP OF SLAB AND REINFORCE 8 INCH THICK SLAB WITH #4@12" O.C . SLAB SHALL BE SLOPED TO DRAIN.2. FOUNDATION DESIGN IS BASED ON 18 INCH DIAM. AUGER CAST-IN-PLACE PILE WITH AN ALLOWABLE CAPACITY OF 380 KIPS (PER THE GEOTECHNICAL REPORT PREPARED BY ECS, DATED JANUARY 22, 2021). THE ESTIMATED AVERAGE PILE TIP DEPTH OF 90 FEET (ELEV. 655') IS RECOMMENDED. THE GEOTECHNICAL REPORT ANTICIPATES INDIVIDUAL PILES MAY NEED TO PENETRATE INTO THE PARTIALLY WEATHERED ROCK TO ACHIEVE STRUCTURAL CAPACITY OF PILE. 3. TOP OF PILE CAPS TO BE 1'-0" BELOW SLAB-ON-GRADE UNLESS NOTED OTHERWISE.4. SEE GEOTECHNICAL REPORT AND PLUMBING DRAWINGS FOR UNDERSLAB DRAINAGE REQUIREMENTS.5. PILE CAPS SHALL BE CENTERED UNDER COLUMNS U.N.O. ON PLAN. SEE PILE CAP CENTERLINES AND ADDITIONAL INFORMATION SHOWN ON PLAN DETAILS ON TYPICAL DETAILS -FOUNDATION.6. SHALLOW FOUNDATIONS UNDER THE SITE CONCRETE WALLS ARE DESIGNED FOR A NET ALLOWABLE SOIL BEARING PRESSURE NOT TO EXCEED 2,000 PSF. SEE GEOTECHNICAL REPORT.LEGENDSREV NO DATE ISSUE