22042_Matheson Ave-EMP Final 11272019_signed

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EMP Version 2, June 2018
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

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.

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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.

܈ 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.

܆ 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.

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GENERAL INFORMATION

Date: 11/26/2019 Revision Date (if applicable): Click or tap to enter a date.

Brownfields Assigned Project Name: Matheson Ave II and Matheson Ave Creek

Brownfields Project Number: 22042-18-060 and 23015-19-060

Brownfields Property Address: 2710 Chick Godley Road and 255 Matheson Avenue, Charlotte, NC
28206

Brownfields Property Area (acres): 8.33 acres (Matheson Ave II) and 6.0995 acres (Matheson Ave
Creek)
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): BP NODA, LLC and BP Trail, LLC
Contact Person: Dan Fitzpatrick
Phone Numbers: Office: 770-963-9223 Mobile: Click or tap here to enter text.
Email: [e-mail]

Contractor for PD: Oxford Properties (General Contractor); Abernethy Contracting (Site Contractor)
Contact Person: Jeff Sewell (Oxford); Kurt Abernethy (Abernethy)
Phone Numbers: Office: 404-427-4212 & 704-309-4922 Mobile: Click or tap here to enter text.
Email: [e-mail] & [e-mail]

Environmental Consultant: Apex Companies, LLC
Contact Person: Eric Wysong
Phone Numbers: Office: 704-799-6390 x4815 Mobile: [phone]
Email: [e-mail]

Brownfields Program Project Manager: Carolyn Minnich
Phone Numbers: Office: 704-661-0330 Mobile: [phone]
Email: [e-mail]

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Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch,
Hazardous Waste, Solid Waste):
Click or tap here to enter text.

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:
Other commercial uses subject to prior written North Carolina Department of Environmental
Quality (DEQ) approval.

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

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Provide brief summary of redevelopment plans, including demolition, removal of building
slabs/pavement, grading plans and planned construction of new structures:
The site is currently undeveloped and densely vegetated. Historically, the site has been
undeveloped. In the 1970s, fill material was placed on a significant portion of the site. According
to interviews within prior environmental reports, the fill dirt was likely imported from a
construction project at Matheson Avenue and 30th Street Bridge, but no official documentation is
available for verification. Three multi-story, high density residential structures are proposed to
be developed on the site. Proposed developments also include associated amenities such as a
pool, clubhouse, leasing office, common areas, parking lots, sidewalks, and drives; select
preliminary site development plans are included in Attachment 1.

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: 1/6/2020

b) Anticipated duration (specify activities during each phase):
Development activities are expected to be completed over the duration of approximately
two years. Development activities will be performed concurrently throughout the site.
Work will begin on the west portion of the site; once a temporary bridge over Little Sugar
Creek has been established, work will begin on the east portion of the site. Development
activities will be conducted concurrently until completion. Four main buildings will be
constructed including: Clubhouse & Fitness Center, Building 2000, Building 3000, and
Building 4000. It is noted that preliminary plans included a fifth building, Building 1000, on
the northwest portion of the property. This building will not be developed based on current
plans.

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c)Additional phases planned? ܆܆ Yes ܆ No
If yes, specify the start date and/or activities if known:
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.
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: 2/2/2022
CONTAMINATED MEDIA
1) Contaminated Media on the Brownfields Property
Part 1. Soil:……………………………………….……………. ܈ Yes ܆ No ܆ Suspected
Part 2. Groundwater:.……………………….……..……. ܈ Yes ܆ No ܆ Suspected
Part 3. Surface Water:.……………...……..…………… ܈ Yes ܆ No ܆ Suspected
Part 4. Sediment:.……………...……..…………………… ܈ Yes ܆ No ܆ Suspected
Part 5. Soil Vapor:…..…………...……..…………………. ܆ Yes ܈ No ܆ Suspected
Part 6. Sub-Slab Soil Vapor:……...……..…………….. ܆ Yes ܈ No ܆ Suspected
Part 7. Indoor Air:...……..…………………………………. ܆ Yes ܈ No ܆ Suspected
2) For the Area of Proposed Redevelopment on the Brownfields Property, attach tabulated data
summaries for each impacted media and figure(s) with sample locations.
PART 1. Soil – Please fill out the information 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)Known or suspected contaminants in soil (list general groups of contaminants):
Minor levels of volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs),
and metals have been detected in onsite soil and sediment at the Brownfields Property.
Detected concentrations of analytes in soil and sediment were compared to Residential,
Commercial/Industrial, and Protection of Groundwater Preliminary Soil Remediation Goals
(PSRGs). See Attachment 2 for site figures including locations of proposed development with
respect to contaminated areas and prior sampling locations. See Attachment 3 for tabulated
X

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sample results.

Arsenic was detected in all onsite soil and sediment samples. The Inactive Hazardous Sites
Branch’s (IHSB’s) tabulated generic Residential PSRG for arsenic is 0.68 mg/kg. Based on site
specific assessment data, the arsenic impacts on the Brownfields Property appear to be naturally
occurring except for at SOIL-1-112117, where arsenic was detected at a concentration of 19
mg/kg.

Total chromium concentrations were detected in soil and sediment samples across the
Brownfields Property at concentrations ranging from 19.8 mg/kg to 110 mg/kg, exceeding the
Residential PSRG of 0.31 mg/kg. The standard for total chromium is the lower threshold for
hexavalent chromium. Select samples were speciated for trivalent and hexavalent chromium,
which identified concentrations of hexavalent chromium ranging from 2.2 to 4.8 mg/kg. There is
no known source for non-naturally occurring chromium on the property and the detected
chromium concentrations are likely naturally occurring and consistent with the Charlotte Region.

Lead concentrations were detected in the Soil 2 sample at 910 mg/kg, above the Residential
PSRG of 400 mg/kg. Follow-up samples were below the standard of 400 mg/kg. Final grade
sampling will be required once grading activities are complete. A final grade sampling plan will
be developed once the redevelopment plan is finalized and a construction schedule has been
established.

Manganese concentrations were detected in soil ranging from 272 mg/kg to 482 mg/kt. Two of
the samples contained concentrations exceeding the Residential PSRG of 380 mg/kg. These
concentrations are consistent with naturally occurring concentrations within shallow soil in the
Charlotte Region.

The following four polycyclic aromatic hydrocarbons (PAHs) were detected at concentrations
above Residential and/or Commercial PSRGs: benzo(a)anthracene, benzo(a)pyrene,
benzo(b)fluoranthene, and indeno(1,2,3-c,d)pyrene. The PAH concentrations above PSRGs were
detected in two areas of the site including a drainage area north of Little Sugar Creek to the
south of the proposed redevelopment area, and in the northeastern portion of the site.

2) Depth of known or suspected contaminants (feet):
The above-referenced contaminants were identified at depths ranging from ground surface to
ten feet below ground surface (bgs). Most of the impacts are shallow, observed within the upper
two feet of soil.

3) Area of soil disturbed by redevelopment (square feet):
Most of the northwestern and southern portions of the site will be disturbed throughout the
redevelopment process, estimated at approximately 330,000 square feet. The estimated area to
be disturbed includes cut and fill areas, although substantially more areas will require fill than
will require cuts.

4) Depths of soil to be excavated (feet):
Portions of the site requiring excavations will consist of areas requiring cuts during grading,

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sediment traps and sediment basins during development, building foundations, utilities, and
installation of a below ground swimming pool. Excavation depths will extend to approximately 8
feet bgs in limited areas, but most of the site will require fill to raise the grade. Proposed
topography and a colorimetric cut and fill figures with estimated volumes are included in
Attachment 1.

5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan):
Approximately 4,231 cubic yards of soil are expected to be excavated based on the estimated cut
and fill volume data (included in Attachment 1). Excavated soil will be reused onsite wherever
possible. However, limited areas may contain material unsuitable for reuse in site development
(such as areas covered with wood chips in the southern portion of site).

6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants:
The 4,231 cubic yards of soil estimated to be excavated are anticipated to contain concentrations
of metals including arsenic, chromium, and manganese consistent with naturally-occurring
concentrations. Soil contaminated with various PAHs above Residential and/or Commercial
PSRGs were identified in the vicinity of the following sample locations: SOIL-1-112117, TP/SB-2,
SS-1, SS-2, and SB-10. Elevated concentrations of lead, above the Residential and Commercial
PSRG, were identified in soil in the vicinity of the SOIL-2 sampling location. Soil excavation is not
planned in the vicinity of SS-1, SS-2, and SB-10; these are areas with no proposed development.

Soil excavation up to a maximum depth of approximately 3.5 feet bgs is anticipated to be
required northeast of SOIL-1-112117. Areas in the vicinity of SOIL-1-112117 and to the south, in
the vicinity of TP/SB-2, will require fill material to raise grade level up to 7 feet higher than
current grade. Excavated soil in the area of elevated PAHs northeast of SOIL-1-112117 will be
used as fill in adjacent portions of the site to the south of SOIL-1-112117. The relocated soil will
remain within areas identified with similar contaminants and will be located under building
foundations, paved surfaces, and/or clean fill once development is complete. Once earthwork
activities are completed in this area, the area will be surveyed for a revised plat map and
updated in a summary report. Prior to excavation in the area of elevated PAHs, the area of
elevated PAHs will be flagged or staked out to ensure that relocated soil remains within the
known area of elevated PAHs. Alternatively, soil excavated in the area of elevated PAHs may be
disposed of at a municipal solid waste facility. Any offsite disposal of soil will be performed in
accordance with procedures outlined in Part 1.C . of this EMP.

Final grade surface sampling will be required. A final grade sampling plan will be developed and
submitted under separate cover once the redevelopment plan is finalized. Sampling in the
vicinity of SOIL-2 (high lead concentrations) will include collection of TCLP samples to confirm
remaining soil is not hazardous.

7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable:
Additional offsite disposal of excavated soil is not expected. If excavated soil is determined to
not be suitable for re-use due to geotechnical issues, an offsite facility will be identified for

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disposal and the soil will be analyzed and profiled at the discretion of the offsite facility and upon
approval from DEQ if not disposed of at a solid waste disposal facility in accordance with Part
1.C. of this EMP.

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)
Lead at the “SOIL-2” sample location was detected at a concentration of
910 mg/kg, exceeding the Rule of 20 criteria of 100 mg/kg. Chromium at
“TP-5” and “SB-3” was detected at concentrations of 110 mg/kg and 100
mg/kg respectively, which is at or exceeding the Rule of 20 criteria of 100

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mg/kg. The chromium detections are consistent with naturally occurring
concentrations. No other total analytical result exceeded the Rule of 20
where regulatory TCLP standards are available.

Based on the proposed topography plan, the areas in the vicinity of TP-5
and SB-3 will require backfill to raise grade level.

Due to the elevated lead concentration in this SOIL-2 area, three TCLP
samples will be collected to determine if it is hazardous.

When grading work is being conducted in the area of elevated lead
detections (see Attachment 2), workers will don disposable boot covers, to
be removed prior to leaving the area. Furthermore, equipment used in the
area of elevated lead detections will have their tracks and buckets/blades
decontaminated prior to working in other areas of the site.

܆܆ If no, explain rationale:
Click or tap here to enter text.

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.

Additional comments:

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

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to Brownfields Project Manager once known
܆܆ Geotextile to mark depth of fill material.
Provide description of material:
Click or tap here to enter text.

܈ Manage soil under impervious cap ܈ or clean fill ܈
܈ Describe cap or fill:
Most of the site will be covered with an estimated two feet or more of demonstrably clean
fill (confirmed through final grade sampling), concrete building slabs, and asphalt pavement
for parking and drive lanes. Known impacted soil northeast of SOIL-1-112117 will be reused
within the Brownfields Property Boundary south of SOIL-1-112117. Soil excavated within
the impacted area northeast of SOIL-1-112117 will be placed in areas under building
foundations and asphalt pavement as described above in Part 1. 6) of this EMP.

܈ 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:

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:
Dust levels will be visually monitored. If visual dust are observed or anticipated,
appropriate measures will be taken to reduce dust levels, such as wetting the exposed soil
areas. 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. Contractors will 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).

܆ 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 significantly impacted soil that may not be suitable to leave in place
in exposed areas at the Site. Evidence of potentially impacted soil includes a distinct
unnatural color, strong odor, or filled or previously disposed materials of concerns (i.e.
Click or tap here to enter text.

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chemicals, tanks, drums, etc.). Should the above be noted during site work, the contractor
will contact the project environmental consultant to observe the suspect condition. If the
project environmental consultant confirms that the material may be impacted, then the
procedures below will be implemented. In addition, the environmental consultant will
contact the DEQ Brownfields project manager within 48-hours to advise that person of the
condition.

No VOCs were identified above Residential PRGs in any of the previous sampling. Metals
concentrations in excavation areas are consistent with naturally occurring concentrations
throughout the Charlotte area except for lead in the vicinity of the SOIL-2 sample location.
PAHs were detected at concentrations above Residential PSRGs in an area of minimal
excavation. Excavated soil in this area will be relocated to adjacent areas that will be
beneath building foundations and site pavement once development is complete. PAH
concentrations did not exceed Commercial/Industrial PSRGs with the exception of a
sediment sample collected at SS-1, which is in an area that will not be excavated as part of
site redevelopment but will be located beneath up to 20 feet of fill at final grade.

Geotechnical ground improvements to prepare onsite soil to support shallow building
foundations have been planned using a technique referred to as dynamic deep
compaction. This technique involves dropping a large weight (10 to 20 tons) from heights
ranging from 20 feet to more than 100 feet. The impact of the weight dynamically
compacts the subsurface. Depressions that are a few feet deep may result, which are
typically referred to as craters. An ironing pass with a lighter weight levels the site and
provides uniform near surface conditions. Typically, the site grades may be lowered from 1
to 3 feet depending upon the subsurface response to the compaction operations. The
dynamic deep compaction process will cause surficial soil to be driven a few feet deeper.
However, groundwater was encountered throughout the site at depths greater than 20
feet and shallow soil fill material present on the site is not expected to be moved vertically
downward to the depth of groundwater and will generally remain within the zone of
identified fill material.

܆܆ No, explain rationale:

Soil Sample Collection
܈ Yes, describe the sampling method (e.g., in-situ grab, composite, stockpile, etc.):
If field screening identifies potentially impacted soil, grab samples may be collected in-situ
by the environmental consultant or soil will be stockpiled in accordance with the attached
Figure 1: NCBP Diagram for Temporary Containment of Impacted or Potentially Impacted
Soil and stockpile samples will be collected by the environmental consultant using
decontaminated sampling equipment and collected in laboratory-provided sample
containers to be analyzed for chemical analytes as outlined below.

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Pending analytical results, impacted soil will either be disposed of in accordance with
procedures outlined in Part 1.C. below or relocated to areas of the site that will be
beneath clean fill material and/or parking lot pavement. Documentation of final location
will be surveyed and recorded on a site map. Soil that will be replaced on-site will be
sampled at a rate of one composite sample per 1,000 cubic yards of soil. To create
composite samples, each 1,000-cubic yard stockpile will be divided into four
approximately equally sized quadrants based on a visual evaluation. One sample from
each of the four quadrants will be collected using stainless steel sampling equipment. The
samples from each of the four quadrants will be mixed together to create the composite
sample, which will be analyzed for the chemical analytes as outline below.

܆܆ No, explain rationale:

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 Method 6010d (arsenic, barium, cadmium, chromium, lead, selenium, silver,
and manganese) and EPA Method 7471b (mercury).

܆ 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 and TCLP Lead by EPA Method 1311 in
the lead area (vicinity of SOIL-2)

܈ 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
Click or tap here to enter text.

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below (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 Method 6010d (arsenic, barium, cadmium, chromium, lead, selenium,
silver, and manganese) and EPA Method 7471b (mercury).

܆ 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, a work plan for
final grade sampling may be submitted under separate cover.
Final grade sampling will be collected from a depth of 0-2 feet below ground surface across
the entire site. A work plan for final grade sampling will be submitted to DEQ for approval
under separate cover.

܆ 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?
Approximately 90,000 cubic yards of fill material is anticipated to be imported to the site

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according to the colorimetric cut and fill figure with estimated volumes (included in Attachment
1).

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.)
Fill will be placed on the surface throughout the site. Anticipated thickness of fill will range from
less than one foot to approximately 23 feet above existing grade.

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 Prospective Developer will source the fill from another Brownfields site, if possible, with the
aid of the NC BF Program or an approved quarry. At present, two potential nearby Brownfields
Properties have been identified as follows: Highland Mill # 3 Brownfields Project, E. 33rd Street
Parcel (20037-16-060) and the Chadbourn Mill Brownfields Project (20086-16-060). These sites
may be used as potential fill sources with appropriate documentation of export soil assessment
data and approval letter from DEQ. A Report of Export Soil Assessment Results for Highland Mill
#3 and a Data Summary Package and Geotechnical Engineering Report for Chadbourn Mill have
been obtained and reviewed for these properties.

Additionally, the following import quarries may be used for obtaining structural fill material.
These have been pre-approved by DEQ and will not require additional sampling:

x Martin Marietta Charlotte Quarry at 4551 Beatties Ford Road, Charlotte, NC 28216.
x Vulcan Materials Company at 10526 Old Nations Ford Road, Charlotte, NC 28273.

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.
The prospective developer plans to import limited amounts of organic rich topsoil from a
commercial landscape material vendor for use in planters and in proposed landscape areas. The
prospective developer does not plan to collect samples of landscape materials prior to
placement in the proposed landscape areas. No other soil will be brought onsite without DEQ
approval. Any fill material source that has not been pre-approved by DEQ or approved through a
Brownfields Export Assessment and approval letter, will require additional environmental
assessment to be performed on the source area. No fill material will be brought onto the site
unless analytical data shows that the material will not increase the potential for risk to human
health and the environment. Fill material containing contaminants that have not been
previously identified on the site will not be used.

If import material is to be brought to the site from a source other than the pre-approved sources
listed above or from another Brownfields Property with DEQ approval letter, a sampling work
plan including a summary of the historical use of the fill source property and sample analysis will

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be provided to DEQ for review and approval. The fill soil will not be transported to the subject
site until the sampling plan is approved by DEQ. The soil sample(s) will be analyzed as described
in Part 1.B.6) below. Additional analyses may be warranted depending on the nature and
location of the potential source. Fill soil from sources other than those mentioned above will be
considered suitable for use at the Site if it does not contain compound concentrations above
DEQ IHSB Residential PSRGs or site-specific background levels for metals.

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 Method 6010d (arsenic, barium, cadmium, chromium, lead, selenium,
silver, and manganese) and EPA Method 7471b (mercury).

܆ 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
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.
Fill material imported from the two pre-approved quarry sources referenced in Part 1.B.
paragraph 4) above will not require additional sampling. If fill material will be required to be
imported from a source that has not been previously cleared by the Brownfields Program, the fill
soil will be sampled before import to the site. The number of samples to be collected will be
dependent upon whether the fill soil is obtained from a virgin or previously developed site. If soil
is obtained from a known permitted quarry, then one soil sample will be collected from the
borrow source prior to the soil being transported to the site or as approved by DEQ. 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 is required prior to bringing soil on site. In general, if the proposed borrow source has not
been previously developed, soil samples at a rate of one per 500-1,000 cubic yards will be
collected; if the borrow source property has been previously developed, soil samples will be
collected at a rate of approximately one per 400 cubic yards or as approved by DEQ. The borrow
source soil samples will be analyzed as described in Part 1.B.6) above. Soil will be considered
suitable for use at the site if it does not contain compounds at concentrations above DEQ IHSB

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Residential PSRGs or typical background levels for metals from samples on the Brownfields
Property.

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.
Export of soil for potential re-use from the Brownfields Property is not anticipated. However,
material that is not suitable for re-use due to physical characteristics (wood chips, high organic
content, etc.) is expected to be encountered and will be disposed of at a Subtitle D/Municipal
Solid Waste Landfill. Soil excavated in the vicinity of the SOIL-2 sample location includes less
than 300 cubic yards of soil that may require treatment and disposal at a Subtitle D/Municipal
Solid Waste Landfill, depending on the results of analytical testing.

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;
܆ 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).

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In the event that export is required, the material will be characterized, the analytical results and
location of the soil to be exported will be documented, and the results will be submitted to the
Brownfields Program. Once a potential export site has been identified, DEQ approval will be
requested. No soil will be exported from the site without DEQ approval unless being disposed
of at a solid waste landfill as described above.

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:
Click or tap here to enter text.

܈ If no, include rationale here:
Vapor intrusion threats at the site are not anticipated based on the results of previous sampling
conducted at the site.

Other comments regarding managing impacted soil in utility trenches:
Most of the site is not anticipated to require any special management of materials as concentrations
of metals observed are consist with naturally-occurring concentrations. Trenching occurring in the
vicinity of elevated lead detections, if necessary, will be performed by utilizing a 10-mil plastic liner
between native impacted soils and the base of the utility trench prior to filling with clean fill. It should
be noted that based on the thickness of fill material that will be placed in the vicinity of the elevated
lead detections (approximately 5 to 12 feet), native impacted soil will likely not be encountered
during utility trenching activities. Elevated PAH detections in the vicinity of TP/SB-2 and SOIL-1-
112117 did not exceed Commercial/Industrial PSRGs and no liner will be required; the last out, first in
principle will be applied in this area. Trenching for utilities is not planned in the area of elevated PAH
detections between SS-1, SB-10, and SS-2.

PART 2. GROUNDWATER – Please fill out the information below.

1) What is the depth to groundwater at the Brownfields Property?
Groundwater at the site was encountered at depths ranging from 21 feet bgs and 30 feet bgs on

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the portions of the site proposed for development during the November 2017 sampling
activities. Groundwater was encountered at depths of 1.5 to 15 feet bgs in areas adjacent to
Little Sugar Creek that are not proposed for development.

2) Is groundwater known to be contaminated by ܈܈onsite ܆offsite ܆both or ܆unknown
sources? Describe source(s):
One semi-volatile organic compound, bis(2-ethylhexyle)phthalate in sample SB-2, exceeded the
NC 2L Groundwater Quality Standard (2L Standard) of 3 micrograms per liter (μg/L) with a
concentration of 3.2 μg/L (it is also noted that this compound is a common laboratory artifact
and that it was also detected in the method blank). Chromium at SB-6 exceeded the 2L Standard
of 10 μg/L, with a concentration of 35 μg/L (it is also noted that this sample was collected from a
temporary groundwater monitoring well and had a high turbidity). Although the above
contaminants are likely attributed to sample methodology and laboratory artifacts, groundwater
is considered contaminated and land use restrictions are in place to restrict groundwater use at
the site. Contamination, if present, is generally attributed the fill material that had been placed
onsite prior to the Prospective Developer’s involvement with the site.

The potential for offsite sources of groundwater contamination exists related to a chlorinated
solvents release documented offsite to the northeast. However, sampling conducted by others
in 2012 and 2018 did not identify contaminants in the onsite wells (PMW-14A and PMW-14B) at
concentrations above 2L Standards (reported in Confirmatory Sampling Work Plan, Trex
Properties, LLC, prepared by EnviroAnalytics Group dated August 2019). Further potential for
groundwater contamination from offsite sources includes the operation of a nearby metals
recycling facility, which has been documented to have impacted surface water, sediment, and
soil at the site, a nearby gasoline filling station, and other nearby commercial uses.

3) What is the direction of groundwater flow at the Brownfields Property?
Groundwater in the southeastern portion of the site generally flows west northwest toward the
adjacent Little-Sugar Creek and groundwater in the northwestern portion of the site generally
flows south toward the adjacent Little-Sugar Creek.

4) Will groundwater likely be encountered during planned redevelopment activities?
܆Yes ܈No
If yes, describe these activities:
Click or tap here to enter text.

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).
It is not expected that groundwater will be encountered, but if groundwater is encountered
during redevelopment activities, it should be considered contaminated and contact should be
avoided until groundwater is characterized. Groundwater requiring removal during site work
will be containerized for characterization by analytical data. The groundwater will then be
profiled for off-site disposal at a permitted facility in accordance with regulatory requirements
and upon DEQ approval.

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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 -Please fill out the information below.
1) Is surface water present at the property? ܈ Yes ܆ No
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
There are no known monitoring wells on the portions of the Brownfield Property to be developed.
DEQ will be notified in the event that a previously unidentified well is discovered and every effort will
be made to protect such well. Two groundwater monitoring wells (MW-14A and MW-14B) are
located on the northeastern portion of the Brownfield Property in an area that is not proposed to be
developed. The wells are related to a nearby hazardous waste site, the Trex Properties, LLC (Permit
No. NCD 049 773 245). The wells were most recently sampled in November 2018 by an
environmental consultant performing clean-up activities related to the facility. These wells will be
identified and protected from disturbance during development activities. If during the course of
development activities it is determined that these wells will be adversely affected, the Brownfields
Program will be notified and, upon approval, the wells will be abandoned in accordance with standard
practice by a North Carolina-licensed well driller.

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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):
The nearest surface water body, Little Sugar Creek, is located centrally within the Brownfield
Property. Little Sugar Creek is located within an area that will remain undeveloped and has been
impacted by offsite releases related to chlorinated solvents upstream to the east of the site and
from SVOC impacts from an offsite facility to the north of the site. Concentrations of
tetrachloroethylene, trichloroethylene, vinyl chloride, anthracene, benzo(a)anthracene,
benzo(a)pyrene, and bis(2-ethylhexyl)phthalate above their respective NCAC 2B Surface Water
Standards have been identified in samples collected onsite from Little Sugar Creek. Areas of
surface water impacts are depicted on Attachment 2, Figure 4 and tabulated analytical results
are included in Attachment 3, Table 5. Part of the development activities will include
construction of a bridge over Little Sugar Creek. When working in the vicinity of Little Sugar
Creek, crossing the creek, or at times when incidental contact with creek water may occur,
workers will don protective gloves, appropriate foot ware or boot covers, and/or face shields as
necessary to prevent dermal contact with the water. Water within Little Sugar Creek will not be
handled or diverted during development activities.

Construction activities will progress attempting to minimize or eliminate the accumulation of
stormwater at the site. Stormwater will be managed in accordance with applicable municipal and
State regulations for erosion control and construction stormwater control. Measures such as
earthen berms may be utilized to restrict the flow of stormwater into excavations in the area of
elevated lead concentrations and in the area of elevated PAH concentrations. If stormwater
accumulates in excavations located within the area of elevated PAHs, the stormwater will be
allowed to evaporate. If removal by evaporation is not feasible, stormwater collecting in the
area of elevated PAHs will be analyzed for SVOCs by method 8270. If not impacted above DEQ
surface water standards, DEQ will be notified of the results and upon approval, the stormwater
will be discharge in accordance with applicable municipal and State regulations for construction
stormwater control. Stormwater that exceeds DEQ surface water standards will be containerized
and stored on-site until characterization is complete. The water will then be profiled and
disposed of off-site at a permitted facility in accordance with regulatory requirements and with
DEQ approval.

PART 4. SEDIMENT – Please fill out the information below.

1) Are sediment sources present on the property? ܈܈ Yes ܆ No

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

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

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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):
An intermittent stream is located in the northwest portion of the site, south of proposed
development in that portion of the site. The area of the intermittent stream is not proposed for
development but is immediately adjacent to an area where substantial amounts of fill material
will be placed to raise the grade up to 23 feet above its current elevation. Concentrations of
benzo(a)pyrene and arsenic above commercial/industrial PSRGs have been identified in samples
collected surface sediments within the intermittent streambed (water was not present in the
stream during sampling activities). Areas of surface sediment impacts include the areas around
and between samples SS-1, SS-2, and SB-10 on Attachment 2, Figure 3 and tabulated analytical
results are included in Attachment 3, Table 1 (samples SS-1 and SS-2).

Although development in this area is not proposed, it is expected that workers and/or equipment
may contact sediment in the area of elevated PAHs in and around SS-1 and SS-2. When working in
this area, workers will don protective gloves, appropriate foot ware, and/or boot covers as
necessary to prevent contact with the impacted surface sediments. Equipment used in this area
will have their tracks and/or buckets/blades decontaminated prior to working in other areas of
the site.

PART 5. SOIL VAPOR – Please fill out the information below.

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
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
5) In the event that contaminated soil vapor is encountered during redevelopment activities
(trenches, manways, basements or other subsurface work,) list activities for management
Click or tap here to enter text.

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of such contact:
Concentrations of soil vapor collected throughout the site in September 2018 indicate a soil
vapor concern is not present.

PART 6. SUB-SLAB SOIL VAPOR – Please fill out the information below if existing buildings or
foundations will be retained in the redevelopment.
1) Are sub-slab soil vapor data available for the Brownfields Property? ܆܆ Yes ܈ No ܆ Unknown
2) 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 data is not available; the site is undeveloped and no slabs are present. Shallow soil gas
data has been collected from the sample locations shown on Attachment 2, Figure 3 (SG-1
through SG-8) and tabulated analytical results are included in Attachment 3, Table 6. No
compounds were detected above residential soil gas screening levels.

4) Will workers encounter contaminated sub-slab soil vapor during planned redevelopment
activities? ܆ Yes ܈ No ܆ Unknown
5) In the event that contaminated soil vapor is encountered during redevelopment activities, list
activities for management of such contact
Based on the available data collected at the site, is not expected that contaminated soil vapors
above non-residential vapor intrusion screening levels will be encountered during development
activities. In the event contaminated soil vapors are encountered during development activities
(as evidenced by unusual odors or otherwise unexplained symptoms of exposure present in
workers), 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. Additionally, the potential need for additional
building vapor mitigation may be evaluated at such time. If impacts inconsistent with those
previously documented at the site are identified, the Brownfields Project Manager will also be
notified.

PART 7. INDOOR AIR – Please fill out the information below.

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

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indoor air during planned redevelopment activities? ܆܆ Yes ܈ No ܆ Unknown
4) In the event that contaminated indoor air is encountered during redevelopment activities, list
activities for management of such contact:

VAPOR INTRUSION MITIGATION SYSTEM – Please fill out the information below.
Is a vapor intrusion mitigation system (VIMS) proposed for this Brownfields Property?
܆ Yes ܈ No ܆ Unknown
If yes, ܆ VIMS Plan Attached or ܆ VIMS Plan to be submitted separately
If submitted separately provide date:
Click or tap here to enter text.

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:
Based on an evaluation of soil gas in the vicinity of the proposed site buildings collected in
September 2018, a vapor intrusion risk is not present.

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)
Plus manganese by EPA Method 6010.
The site is undeveloped.

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܆܆ 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 and/or TCLP Lead by EPA Method 1311 if
elevated total lead detections are identified

Please provide details on the proposed methods of managing the following commonly
encountered issues during redevelopment of Brownfields Properties.
Click or tap here to enter text.

Underground Storage Tanks:
Should a previously unreported underground storage tank (UST) be identified during site
development activities, excavation activities in the vicinity of the UST will be put on hold and the
discovery will be reported to the environmental consultant, who will assess the situation and report
to the DEQ within 48 hours of discovery. The tank will be inspected to determine if any product
remains in the tank. The contents of the tank will be evaluated, analyzed, and disposed of at a
licensed offsite facility in accordance with regulatory requirements and DEQ approval. The tank will
be removed in accordance with applicable UST regulation, surrounding soil and soil at the base of
the tank will be screened with a photoionization detector (PID) and flame ionization detector (FID),
the breathing zone will be monitored using a PID/FID, and confirmatory sampling and/or remedial
activities will be conducted to the satisfaction of DEQ, which will include all applicable sampling
locations including the base of the tank. Sampling locations will be selected as outlined in the
Guidelines for Site Checks, Tank Closure, and Initial Response and Abatement for UST Releases (UST
Section, DEQ, Division of Waste Management, February 2019). Samples will be analyzed as
referenced above at the start of this section of the EMP.

Sub-Grade Feature/Pit:
Should a previously unreported sub-grade feature be identified during site development activities,
excavation activities in the vicinity of the discovery will be put on hold and the environmental
consultant will be contacted for evaluation. The environmental consultant will assess the situation
and report to the DEQ within 48 hours of discovery. The structure will be inspected to determine if
an environmental concern exists. The soil and/or other contents in and around the feature will be
assessed by a qualified environmental scientist for visual or olfactory evidence of impacts and
screened using a PID/FID. If screening indicates impacts are present, samples will be analyzed as
referenced above at the start of this section of the EMP, and additional analytes as determined
upon inspection and review. Impacted soil will be handled onsite or disposed of at licensed offsite
facilities in accordance with regulatory requirements and DEQ approval, as needed and

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confirmatory sampling and/or remedial activities will be conducted to the satisfaction of DEQ.

Buried Waste Material:
If buried impacted material is identified during site development activities, excavation activities in
the vicinity of the discovery will be put on hold and the environmental consultant will be contacted
for evaluation and report the discovery to DEQ within 48 hours. The material will be assessed by a
qualified environmental scientist for visual or olfactory evidence of impacts and screened using a
PID/FID. If screening indicates impacts are present, samples will be analyzed as referenced above at
the start of this section of the EMP, and additional analytes as determined upon inspection and
review. Impacted soil will be handled onsite or disposed of at licensed offsite facilities in
accordance with regulatory requirements and DEQ approval, as needed and confirmatory sampling
and/or remedial activities will be conducted to the satisfaction of DEQ.

Re-Use of Impacted Soils On-Site:
Soil impacted with contaminants and/or at concentrations previously undescribed for the site will
be disposed of at licensed offsite facilities in accordance with regulatory requirements and DEQ
approval, unless justification exists for re-use at the site. No such soil will be re-used at the site
without prior approval from DEQ.

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:
The environmental consultant will be notified in the event that other indications of potential
environmental concern or impact are identified at the site and report discoveries to DEQ within 48-
hours.

POST-REDEVELOPMENT REPORTING

܈܈ 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 1/31/2021

The Redevelopment Summary Report shall include environment-related activities since the last

27
EMP Version 2, June 2018
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.

APPR(,IIALCGI{ATUREIS
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28
EMP Verslon 2, June 2018

29
EMP Version 2, June 2018

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C1-11C1-1
CONSTRUCTION SEQUENCETHE FOLLOWING CONSTRUCTION SEQUENCE IS FURNISHED AS AGENERAL GUIDE FOR PREPARATION OF A SEQUENCE OF CONSTRUCTIONEVENTS. ADDITIONS, DELETIONS, AND MODIFICATIONS SHOULD BE MADEAS APPROPRIATE.PHASE 1:PRIOR TO COMMENCING WITH EACH PHASE, CONTRACTOR SHALL MEET WITHTHE CITY OF CHARLOTTE EROSION CONTROL INSPECTOR. CONTACT GINAHODGES [phone].1. STAKE/FLAG THE LOD, (WHERE STAKING IS NOT POSSIBLE/PRACTICAL,THE LOD MUST BE CONSPICUOUSLY AND PROMINENTLY MARKED.) LODTO REMAIN CONSPICUOUSLY MARKED THROUGHOUT THE ENTIRECONSTRUCTION PROJECT.2. THE CONTRACTOR SHALL SET UP AN ON-SITEPRE-CONSTRUCTION CONFERENCE WITH THE EROSION CONTROLINSPECTOR TO DISCUSS EROSION CONTROL MEASURES. FAILURE TOSCHEDULE SUCH CONFERENCE 48 HOURS PRIOR TO ANY LANDDISTURBING ACTIVITY IS A VIOLATION OF CHAPTER 17 OF THE CITYCODE AND IS SUBJECT TO FINE.3. INSTALL SWPPP SIGN AND TEMPORARY CONSTRUCTION EXITS, AND SETPROJECT OFFICE TRAILER.4. CONTRACTOR TO INSTALL SILT FENCE, HIGH HAZARD SILT FENCE,SEDIMENT TRAP, SKIMMER SEDIMENT BASIN, DIVERSION DITCHES, ANDOTHER MEASURES AS SHOWN ON PLANS. CONTRACTOR TO CLEARONLY AS NECESSARY TO INSTALL THESE DEVICES.5. GRADED SLOPES AND FILLS ARE TO BE PLANTED OR PROVIDED WITHPROTECTIVE COVER SUFFICIENT TO RESTRAIN EROSION WITHIN 7CALENDAR DAYS AFTER THE COMPLETION OF ANY PHASE OF GRADING.ALL AREAS UPON WHICH NO FURTHER LAND DISTURBING ACTIVITY WILLBE UNDERTAKEN ARE TO BE PLANTED OR PROVIDED WITH PROTECTIVECOVER WITHIN 14 CALENDAR DAYS.EROSION CONTROL NOTES:1. ALL "STD." NUMBERS REFER TO THE CITY OF CHARLOTTE LANDDEVELOPMENT STANDARDS MANUAL (CLDSM)2. ANY GRADING BEYOND THE DENUDED LIMITS SHOWN ON THE PLAN IS AVIOLATION OF THE COUNTY EROSION CONTROL ORDINANCE AND ISSUBJECT TO A FINE.3. GRADING MORE THAN ONE ACRE WITHOUT AN APPROVED EROSIONCONTROL PLAN IS A VIOLATION OF THE COUNTY EROSION CONTROLORDINANCE AND IS SUBJECT TO A FINE.4. ALL PERIMETER AREAS AND SLOPES GREATER THAN 3:1 SHALL BESTABILIZED WITHIN 7 DAYS. GROUND STABILIZATION ON ALL OTHER AREASMUST BE COMPLETED WITHIN 14 DAYS. REFER TO THE EROSION CONTROLORDINANCE FOR ADDITIONAL REQUIREMENTS.5. ADDITIONAL MEASURES TO CONTROL EROSION AND SEDIMENT MAY BEREQUIRED BY A REPRESENTATIVE OF THE COUNTY.6. A GRADING PLAN MUST BE SUBMITTED FOR ANY LOT GRADING EXCEEDINGONE ACRE THAT WAS NOT PREVIOUSLY APPROVED.7. ALL EMBANKMENTS MUST BE CONSTRUCTED PER SECTION 4.0.6EMBANKMENT REQUIREMENTS IN THE BMP DESIGN MANUAL.8. SLOPES SHALL BE GRADED NO STEEPER THAN 2:1. SLOPES GREATERTHAN 10 VERTICAL FEET REQUIRE ADEQUATE TERRACING (MCLDSM #30.16). SOILS ENGINEER TO VERIFY STABILITY OF SLOPES GREATER THAN2:1.9. SOIL COMPACTION TESTS ARE REQUIRED ON ANY BERM >= 5' IN HEIGHTFROM THE NATURAL GRADE. SOIL COMPACTION MUST BE AT 95%PROCTOR AND CERTIFIED BY A LICENSED SOIL ENGINEER.SEDIMENT & EROSION CONTROL INSPECTORGINA HODGES (CITY OF CHARLOTTE)[phone]SITE INSPECTORGARY BENNER (CITY OF CHARLOTTE)[phone]ENGINEERING INSPECTORROBERT ZINK (CITY OF CHARLOTTE)[phone]THE EXCHANGEPREPARED FORBP NODA, LLCEROSION CONTROLPHASE 1C2-2©Know what'sRNORT
H XxXSOIL TYPEEROSION CONTROL LEGENDLIMITS OF DISTURBANCEEXISTING MAJOR CONTOUREXISTING MINOR CONTOURPROPOSED MAJOR CONTOURPROPOSED MINOR CONTOURSLOPE ARROWSWPPP INFORMATION SIGNPROPERTY LINETEMPORARY SILT FENCE; CLDS 30.06ATEMPORARY SLOPE MATTING - SC150OR GREATERTEMPORARY JUTE NETTING BAFFLES;CLDS 30.19STONE FILTER RINGCONSTRUCTION EXIT, SEE DETAIL30.11ALODSISCESMSFJNSFRTEMPORARY DIVERSION DITCH;CLDS 30.05SLOPE DRAINSKIMMERSILT FENCE OUTLET (LOCATED AT LOWPOINTS ALONG SILT FENCE); CLDS30.06CDD#SD#SKSFORIP-RAP APRONRRDRAINAGE AREACHECK DAMCDHIGH HAZARD TEMPORARY SILT FENCE;CLDS 30.06BHHDESIGN CONSIDERATIONS:xGRADING SHALL BE LIMITED TO 20 ACRES IN CRITICAL OR PROTECTED AREAS, UNLESS APPROVEDBY CITY/ COUNTY ENGINEER.xSUFFICIENT ACCESS FOR CONSTRUCTION AND MAINTENANCE MUST BE ALLOWED AT TOE OF FILLSLOPES AND RETAINING WALLS.xPRE-CONSTRUCTION AND POST-CONSTRUCTION IMPACT SURVEYS INCLUDING DEPTHMEASUREMENTS ARE TO BE CONDUCTED IN ANY RECEIVING LAKE, COVE, OR POND.xFILL SLOPE STEEPNESS SHALL BE LIMITED TO 3:1 (THREE FOOT HORIZONTAL TO ONE FOOTVERTICAL). ALL SLOPES MUST HAVE SLOPE BREAKS AS SET FORTH IN THE NC SOIL EROSION &SEDIMENT CONTROL PLANNING & DESIGN MANUAL, TABLE 6.02A.xALL DIVERSION DITCHES AND INTERIOR BASIN SLOPES MUST BE LINED WITH AN APPROPRIATEROLLED EROSION CONTROL PRODUCT (RECP).xHIGH HAZARD SILT FENCE IS REQUIRED ALONG DENUDED LIMITS AND A DOUBLE ROW OF HIGHHAZARD SILT FENCE IS REQUIRED ALONG WETLANDS, STREAMS, LAKES, OR OTHER SURFACEWATER BODIES AS WELL AS ADJACENT TO ALL WATER QUALITY BUFFERS.xALL BASINS AND SPILLWAYS SHALL BE SIZED TO PASS THE 25-YEAR STORM EVENT.xALL BASINS MUST PROVIDE ADDITIONAL STORAGE VOLUME IN A ROCK COFFER FOREBAY.xPOLYACRYLAMIDES IN BASINS AND SILT-SACKS AT SKIMMER OUTFLOWS MAY BE REQUIRED.SITE MANAGEMENT CONSIDERATIONS:xPOLYACRYLAMIDES IN BASINS AND SILT-SACKS AT SKIMMER OUTFLOWS MAY BE REQUIRED.xTEMPORARY GROUND COVER MUST BE PROVIDED FOR WITHIN 5 DAYS OF ANY PHASE OFGRADING.xALL CRITICAL AREA PLANS WILL CARRY A "PERFORMANCE RESERVATION".xALL LOG BOOK ENTRIES WILL BE ELECTRONICALLY SENT TO THE AREA INSPECTOR.xFOR PROJECTS GREATER THAN 10 ACRES IN SIZE TURBIDITY MEASUREMENTS (OR TRANSPARENTTUBE READINGS) ARE REQUIRED TO MEASURE CLARITY OF BASIN EFFLUENT AND ANY POTENTIALIMPACT TO RECEIVING WATERS AT THE TIME OF RAINFALL-TRIGGERED INSPECTIONS. READINGSMUST BE COLLECTED AT THE BASIN OUTFALL (TO MEASURE CLARITY OF BASIN EFFLUENT),UPSTREAM OF THE DISCHARGE POINT (TO MEASURE BASELINE CONDITIONS), AND DOWNSTREAMOF THE DISCHARGE POINT (TO MEASURE STREAM IMPACTS OF BASIN EFFLUENT). THE RESULTSMUST BE LOGGED IN THE INSPECTION REPORT.ENHANCED EROSION CONTROL CHECKLIST1. INLET PROTECTION MUST BE CLEANED AFTER EVERY RAINFALL EVENT. CURB AND GUTTERSHOULD BE SWEPT AND KEPT CLEAR.2. PERIMETER SILT FENCE AND TREE PROTECTION FENCE SHOWN FOR GRAPHICAL REFERENCEONLY. PERIMETER PROTECTION MUST BE AT LEAST 3' FROM TOE OF ADJACENT SLOPE TO ALLOWROOM FOR ACCESS AND MAINTENANCE.GENERAL NOTES
THE EXCHANGEPREPARED FORBP NODA, LLCSITE PLANC3-1©Know what'sRNORT
HSITE DEVELOPMENT PLAN NOTES1. SEE "GENERAL NOTES" SHEET FOR SITE GENERAL NOTES AND ZONING NOTES.2. SEE "EXISTING CONDITIONS" FOR COMPLETE BOUNDARY DESCRIPTION, ADJOININGPROPERTIES, ZONING AND USE.3. ALL DIMENSIONS SHOWN ARE MEASURED FROM THE FACE OF CURB TO FACE OFCURB, UNLESS OTHERWISE NOTED.4. ALL RADII SHALL BE 3 FEET UNLESS OTHERWISE SHOWN.5. DIMENSIONS TO THE BUILDING ARE MEASURED TO THE EXTERIOR OF THEFOUNDATION WALL UNLESS OTHERWISE SHOWN.6. BEARINGS, DIMENSIONS AND EASEMENTS ARE SHOWN FOR REFERENCE. REFER TORECORDED PLATS AND SURVEYS FOR ADDITIONAL PROPERTY INFORMATION.7. CONTRACTOR SHALL REFER TO THE ARCHITECTURAL PLANS FOR EXACT LOCATIONSAND DIMENSIONS OF VESTIBULES, SLOPE PAVING, SIDEWALKS, EXIT PORCHES, TRUCKDOCKS, PRECISE BUILDING DIMENSIONS AND EXACT BUILDING UTILITY ENTRANCELOCATIONS.8. ALL ON-SITE STRIPING IS TO BE PAINTED, UNLESS OTHERWISE NOTED. ALL STRIPING INPUBLIC RIGHT-OF-WAY TO BE THERMOPLASTIC STRIPING.9. THE SITE WILL BE FULLY COMPLIANT WITH THE ADA ACCESSIBILITY CODES UNLESSAND EXCEPT IN AREAS WHERE AN APPROVED STATEMENT FROM A SITE ENGINEER,SURVEYOR, OR ARCHITECT VERIFIES THAT SITE CONDITIONS EXIST WHERE THETOPOGRAPHY OF THE SITE IS EXTREME AND ONLY ALTERNATE METHODS OFCOMPLIANCE ARE POSSIBLE.10.TESTING OF MATERIALS REQUIRED FOR THE CONSTRUCTION OF THE PAVINGIMPROVEMENTS SHALL BE PERFORMED BY AN APPROVED AGENCY FOR TESTINGMATERIALS. THE TESTING LABORATORY AND THE PAYMENT OF SUCH TESTINGSERVICES SHALL BE MADE BY THE OWNER. IT SHALL BE THE CONTRACTOR'SRESPONSIBILITY TO SHOW BY STANDARD TESTING PROCEDURES THAT THE WORKCONSTRUCTED DOES MEET THE REQUIREMENTS OF THE SPECIFICATIONS.LEGEND FOR PROPOSED IMPROVEMENTSPROPOSED CURB AND GUTTERPROPOSED SPILL CURBPROPOSED PARKING SPACESPROPOSED HEAVY DUTY ASPHALT PAVEMENTPROPOSED STANDARD DUTY ASPHALT PAVEMENTPROPERTY LINECONCRETE PADSTANDARD DUTY CONCRETE SIDEWALKSITE DATA TABLEPROJECT AREA: ±14.43 AC.TOTAL DISTURBED AREA ±8.70 AC.ZONING CODE SUMMARYPARCEL TAX ID:08303150, 08303151, 08303152STREET ADDRESS:2710 CHICK GODLEY ROADCHARLOTTE, NC 28206ZONING:TOD-M(CD) PER REZONING PETITION2014-100PROPOSED USE:MULTI-FAMILYBUILDING HEIGHT: VARIESSETBACK REQUIREMENTS:MATHESON AVENUE: 24' FROM BACKOF CURBCHICK GODLEY ROAD: 9' FROM BACKOF CURBPARKING SUMMARYPARKING REQUIREMENTS:MAXIMUM 1.5 SPACES/UNIT251 TOTAL UNITS, MAXIMUM 376SPACESPARKING REQUIRED:STANDARD SPACES: MAXIMUM 376SPACESADA SPACES: 6 STANDARD, 2 VANPARKING PROVIDED:STANDARD SPACES: 326 SPACESADA SPACES: 7 STANDARD, 5 VANTOTAL PARKING SPACES: 338 SPACESBICYCLE PARKING SUMMARYTOTAL SPACES REQUIRED:LONG TERM: NONESHORT TERM: 1 SPACE PER 20 UNITS;13 TOTAL SPACESTOTAL SPACES PROVIDED: 14 TOTAL SPACESOPEN SPACE SUMMARYPROJECT AREA: ±14.43 AC.*AREAS EXCLUDE EXISTING AND FUTURE RIGHT-OF-WAYSTOTAL IMPERVIOUS AREA :(PAVEMENT, WALKS, ANDBUILDINGS):EXISTING: 0 SFPROPOSED: 266,152 SF / 6.11 AC.OPEN SPACEREQUIRED: 222,809 SF / 5.12 AC.PROVIDED: 331,946 SF / 7.62 AC.SITE LEGENDEXISTING WETLANDSPROPOSED HEAVY DUTY CONCRETE PAVEMENTPROPOSED OPEN SPACEPERMANENT GREENWAY EASEMENT LINEPRIVATE ACCESS EASEMENT LINE
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TABLE 1Soil Assessment Analytical Results - November 2017Matheson Ave IIBrownfields Project Number 22042-18-0602710 Chick Godley Road Charlotte, North CarolinaAcetone*1,2-Dichlorobenzene1,3-Dichlorobenzene1,4-DichlorobenzeneMethyl acetateMethylene ChlorideTetrachloroetheneToluene1,2,4-TrichlorobenzeneTrichloroetheneAcenaphtheneAcenaphthyleneAnthraceneBenzaldehydeBenzo(a)anthraceneBenzo(a)pyreneBenzo(b)fluorantheneBenzo(g,h,i)peryleneBenzo(k)fluoranthene1,1'-Biphenyl*CarbazoleChryseneDibenzofuranDi-n-butyl phthalate*bis(2-Ethylhexyl)phthalate*FluorantheneFluoreneIndeno(1,2,3-c,d)pyrene2-MethylnaphthaleneNaphthalenePhenanthrenePyreneArsenicBariumCadmiumChromiumLeadMercurySelenium12,000,000 380,000 NE 2,800 16,000,000 58,000 17,000 990,000 12,000 870 720,000 NE 3,600,000 170,000 1,100 110 1,100 NE 11,000 10,000 NE 110,000 15,000 1,300,000 39,000 480,000 480,000 1,100 48,000 4,100 NE 360,000 0.68 3,100 14 0.31 400 2.3 78100,000,000 380,000 NE 12,000 29,000,000 650,000 82,000 97,000,000 55,000 4,000 9,000,000 NE 45,000,000 820,000 21,000 2,100 21,000 NE 210,000 43,000 NE 2,100,000 210,000 16,000,000 160,000 6,000,000 6,000,000 21,000 600,000 18,000 NE 4,500,000 3 47,000 200 6.5 800 9.7 1,20025,000 390 3,800 120 NE 25 6.3 8,300 4,100 21 16,000 41,000 1,300,000 3,100 350 120 1,20015,600,000 12,000 84,000 740 36,000 10,000 35,000 14,000 670,000 110,000 3,900 3,100 390 134,000 440,000 5.8 580 3 3.8 270 1 2.1TP/SB-1 (4-5)11/13/2017NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4.2 82 0.3859250 0.42 1.1TP/SB-2 (1.5-2)11/13/2017<23 <5.8 <5.8 <5.8 <5.8 <5.8 <5.8 <5.8 <5.8 <5.8 97 18 250 <81760 730 1,300180 390 31 J 130 810 94 <81 51 J 1,500 85 180 100 110 1,200 1,100 4.1 140 0.21 J2740 0.048 J 0.76 JTP/SB-3 (2-2.5)11/13/20176.1 J <5.2 <5.2 <5.2 <5.2 <5.2 <5.2 <5.2 <5.2 <5.2 <16 <16 <16 <83 17 13 J 25 <16 10 J <83 <83 10 J <83 <83 330 21 <16 <16 <16 <16 17 18 3.4 79 0.14 J669.8 0.043 J 0.80 JTP/SB-4 (4.5-5)11/13/2017NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2.1 100 0.082 J6312 0.039 J 0.67 JTP/SB-5 (6-7)11/13/20177.9 J <5.4 <5.4 <5.4 <5.4 2.7 J <5.4 <5.4 <5.4 <5.4 <16 <16 <16 <82 <16 <16 <16 <16 <16 <82 <82 <16 <82 <82 46 J <16 <16 <16 <16 <16 <16 <16 3.9 140 0.16 J1109.6 0.042 J 1.1TP/SB-6 (1.5-2)11/13/2017NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2.7 150 0.12 J4611 <0.096 0.75 JSB-3 (7.5-10)11/20/2017<23 7.5 9.9 30 <5.8 <5.8102.3 J 110 3.3 J <19 <19 <19 <96 21 17 J <19 13 J <19 <96 <96 13 J <96 130 55 J 18 <19 12 J <19 <19 <19 19 3.3 44 0.21 J10015 0.033 J 1.9SOIL-1-11211711/21/201739 8.1 11 34 100 <6.57.6<6.5 100 <6.5 <16 120 67 230440 570 1,300140 400 <83 33 J 390 320 46 J 51 J 630 <16 160 160 130 160 5601975 0.305430 0.066 J 1.4DUP-1TP/SB-2 (1.5-2)11/13/2017 <18 <4.5 <4.5 <4.5 <4.5 1.9 J <4.5 <4.5 <4.5 <4.5 <16 <16 9.7 J <79 34 31 71 13 J 21 <79 <79 42 <79 <79 46 J 71 <16 11 J 41 34 59 58 3.7 44 0.18 J14013 0.039 J 1.1Notes:μg/kg = micrograms per kilogrammg/kg = milligrams per kilogramOnly analytes that were detected in one or more samples are shown* = Acetone, 1,1'-Biphenyl, Di-n-butyl phthalate, and bis(2-Ethylhexyl)phthalate are possible laboratory artifactsBold concentrations exceed the Protection of Groundwater PSRGYellow highlighted concentrations exceed the Residential PSRGPink highlighted concentrations exceed the Industrial/Commercial PSRGVOCs = Volatile Organic CompoundsSVOCs = Semi-Volatile Organic CompoundsRCRA = Resource Conservation and Recovery Act IHSB Standards = Inactive Hazardous Sites Branch PSRG for industrial health (October 2016)PSRG = Preliminary Soil Remediation GoalsNA = Not analyzedNE = Standard not established< = Result below laboratory reporting limitJ = Estimated laboratory concentrationQA/QC = Quality Assurance/Quality Control DUP-1 = Blind field soil duplicate (taken from TP-2)QA/QCRCRA Metals (mg/kg)IHSB Industrial/Commercial PSRG StandardsIHSB Protection of Groundwater PSRG StandardsTest Pit SamplesSoil Boring SamplesIHSB Residential PSRG StandardsSample Name(Sample Depth)Sample DateVOCs (μg/kg)SVOCs (μg/kg)
TABLE 2Soil Assessment Analytical Results - May 2019Matheson Ave CreekBrownfields Project Number 23015-19-060255 Matheson Avenue Charlotte, North CarolinaPCBs (μg/kg)Acetone1,1-DichloroetheneAcenaphtheneAcenaphthyleneAnthraceneBenzo(a)anthraceneBenzo(a)pyreneBenzo(b)fluorantheneBenzo(g,h,i)peryleneBenzo(k)fluorantheneCarbazoleChryseneFluorantheneFluoreneIndeno(1,2,3-c,d)pyrenePhenanthrenePyreneAroclor 1260ArsenicBariumCadmiumChromium (VI)Chromium (III)LeadMercurySeleniumSilver12,000,000 48,000 720,000 NE 3,600,000 1,100 110 1,100 NE 11,000 NE 110,000 480,000 480,000 1,100 NE 360,000 240 0.68 3,100 14 0.31 23,000 400 2.3 78 78140,000,000 210,000 9,000,000 NE 45,000,000 21,000 2,100 21,000 NE 210,000 NE 2,100,000 6,000,000 6,000,000 21,000 NE 4,500,000 990 3.0 47,000 200 6.5 350,000 800 9.7 1,200 1,20025,000 2,500 16,000 41,000 1,300,000 350 120 1,200 15,600,000 12,000 740 36,000 670,000 110,000 3,900 134,000 440,000 240 5.8 580 3.0 3.8 360,000 270 1.0 2.1 3.4SB-7 (4-5 ft)5/2/2019<21 <5.2 <16 <16 <16 <16 <16 <16 <16 <16 <81 <16 <16 <16 <16 <16 <16 NA 1.4 65 <0.262.4 20.66 <0.095 0.50 J <0.52SB-8 (2-4 ft)5/2/201911 J <4.7 <16 <16 <16 <16 <16 <16 <16 <16 <79 <16 <16 <16 <16 <16 <16 NA 2.0 36 <0.542.2 27.87.4 0.063 J 0.93 J <0.54SB-9 (2-4 ft)5/2/2019<21 <5.3 <16 <16 <16 <16 <16 <16 <16 <16 <82 <16 <16 <16 <16 <16 <16 NA 3.7 55 <0.844.857.212 0.049 J <3.3 <0.56DUP050220195/2/2019 8.8 J <5.1 <16 <16 <16 <16 <16 <16 <16 <16 <82 <16 <16 <16 <16 <16 <16 NA 3.4 59 <0.82 3.3 54.7 12 0.040 J <3.3 <0.55SB-10 (0-2 ft)5/2/2019<28 <7.0 <100 <100 100940 1,200 1,800920 640 140 J 1,100 2,600 29 J 760 770 2,000 120 5.5 160 14.142.9160 0.14 1.9 J 0.21 JSS-15/2/2019<20 <5.1 270 J <350 4902,700 3,000 4,5002,500 1,500 480 J3,6008,100 260 J 1,800 4,100 6,100 71 3.1 56 0.353.0 47.064 0.037 J 0.52 J 0.18 JSS-25/2/2019<25 2.8 J <87 34 J 87640 730 1,200510 420 <440 850 1,700 22 J 430 710 1,400 1107.1120 0.39 J3.7 28.340 0.055 J <2.4 <0.59Notes:Only analytes detected in one or more samples shownμg/kg = micrograms per kilogrammg/kg = milligrams per kilogramIHSB Standards = Inactive Hazardous Sites Branch PSRG for residential/industrial health (May 2019)PSRG = Preliminary Soil Remediation GoalsBold concentrations exceed the Protection of Groundwater PSRGYellow highlighted concentrations exceed the Residential PSRGPink highlighted concentrations exceed the Industrial/Commercial PSRGVOCs = Volatile Organic CompoundsSVOCs = Semi-Volatile Organic CompoundsRCRA = Resource Conservation and Recovery Act PCBs= Polychlorinated biphenylsNE = Standard not establishedNA = Not analyzed< = Result below laboratory reporting limitJ = Result is below laboratory reporting limit but above laboratory detectin limit; considered to be an estimated concentrationDUP05022019 = Blind field soil duplicate (taken from SB-9)IHSB Industrial/Commercial PSRG StandardsIHSB Protection of Groundwater PSRG StandardsSoil Boring SamplesSurface Sediment SamplesSample Name(Sample Depth)Sample DateVOCs (μg/kg) SVOCs (μg/kg)RCRA Metals (mg/kg)IHSB Residential PSRG Standards
TABLE 3Groundwater Analytical Results - November 2017Matheson Ave IIBrownfields Project Number 22042-18-0602710 Chick Godley Road Charlotte, North CarolinaAcetone ¹2-Butanone (MEK)1,1-DichloroetheneEthylbenzeneMethyl tertiary butyl ether (MTBE)TolueneXylenes (total)AcetophenoneAnthraceneCarbazoleDibenzofuranDiethylphthalateDi-n-butyl phthalatebis(2-Ethylhexyl)phthalate ¹FluoreneIsophorone1-Methylnaphthalene2-Methylnaphthalene2-MethylphenolNaphthalenePhenanthrenePhenolArsenicBariumCadmiumChromium6,000 4,000 350 600 20 600 500 NE 2,000 NE NE 6,000 700 3 300 40 NE 30 NE 6 200 30 0.01 0.7 0.002 0.01NE NE NE NE NE NE NE 700 NE 2 28 NE NE NE NE NE 1 NE 400 NE NE NE NE NE NE NE4,500,000 450,000 39 35 4,500 3,800 77 NE NE NE NE NE NE NE NE NE NE NE NE 35 NE NE NE NE NE NE19,000,000 1,900,000 160 150 20,000 16,000 320 NE NE NE NE NE NE NE NE NE NE NE NE 150 NE NE NE NE NE NESB-111/21/2017 21 3.1 J3.8 0.51 J 2.2 2.2 3.2 0.76 J <0.16 <0.80 0.21 J 0.75 J 0.75 J 0.48 J <0.16 0.32 J 0.066 J 0.067 J 1.2 0.17 <0.16 1.6 0.0060 J 0.21 <0.0050 <0.010SB-211/21/2017 <20 <10 <1.0 <1.0 <1.0 0.93 J 1.4 0.83 0.13 J 0.15 J <0.80 0.44 J 0.55 J3.2 J0.23 0.36 J 0.11 J 0.14 J 1.4 0.16 0.35 1.4 <0.015 0.068 <0.0050 0.0058 JSB-411/21/2017 5.1 J <10 <1.0 <1.0 <1.0 0.51 J 0.55 J 0.64 J <0.16 <0.80 <0.80 0.50 J <4.0 0.82 J <0.16 0.22 J <0.16 <0.16 0.76 J 0.082 J <0.16 <0.80 <0.015 0.17 <0.0050 0.0014 JSB-611/21/2017 4.0 J <10 <1.0 <1.0 <1.0 0.42 J 1.1 1.2 <0.16 <0.80 <0.80 1.0 J 1.2 J 0.52 J <0.16 0.59 J <0.16 <0.16 1.9 0.15 J <0.16 2.2 <0.015 0.12 0.00070 J0.035Trip Blank11/21/2017 <20 <10 <1.0 <1.0 <1.0 <1.0 <1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANA NAEB - 11211711/21/2017 3.0 J <10 <1.0 <1.0 <1.0 <1.0 <1.0 <0.80 <0.16 <0.80 <0.80 <4.0 <4.0 0.61 J <0.16 <0.80 <0.16 <0.16 <0.80 <0.16 <0.16 <0.80 <0.015 <0.025 <0.0050 <0.010Notes:Only analytes that were detected in one or more samples are shownBold/yellow highlight concentrations exceed 2L Standardsμg/L = micrograms per litermg/L = milligrams per literNCAC 2L Standards = 15A NCAC 02L Groundwater Quality Standards (April 1, 2013)NCAC = North Carolina Administrative Code¹ = Acetone and bis(2-Ethylhexyl)phthalate are possible laboratory artifactsVOCs = Volatile Organic CompoundsSVOCs = Semi-Volatile Organic CompoundsRCRA = Resource Conservation and Recovery Act NE = Standard not established< = Result below laboratory reporting limitQA/QC = Quality Assurance/Quality Control EB = Equipment blankGroundwater to IA VISL - North Carolina Department of Environmental Quality, Division of Waste Management, Groundwater to Indoor Air Vapor Intrusion Screening Level (October 2017).QA/QCTotal RCRA Metals (mg/L) NC Interm Maximum Allowable ConcentrationsResidential Groundwater to IA VISLNon-Residential Groundwater to IA VISLGroundwaterNCAC 2L Groundwater StandardsSample Name Sample DateVOCs (μg/L)SVOCs (μg/L)
TABLE 4
Groundwater Analytical Results - May 2019
Matheson Ave Creek
Brownfields Project Number 23015-19-060
255 Matheson Avenue
Charlotte, North Carolina
RCRA Metals (mg/L)Barium0.7
MW-10 5/3/2019 0.10
DUP05032019 5/3/2019 0.099
Notes:
Only analytes detected in one or more samples are shown
mg/L = milligrams per liter
NCAC 2L Standards = 15A NCAC 02L Groundwater Quality Standards (April 1, 2013)
NCAC = North Carolina Administrative Code
RCRA = Resource Conservation and Recovery Act
DUP05032019 is a duplicate sample of MW-10
Sample Name Sample Date
NCAC 2L Standards
Groundwater
TABLE 5Surface Water Analytical ResultsMatheson Ave IIBrownfields Project Number 22042-18-0602710 Chick Godley Road Charlotte, North CarolinaTotal RCRA Metals(mg/L)Acetone2-Butanone (MEK)1,1-Dichloroethenecis-1,2-DichloroetheneMethyl tertiary butyl etherTetrachloroetheneTrichloroetheneVinyl chlorideAcenaphtheneAcenaphthyleneAnthraceneBenzo(a)anthraceneBenzo(a)pyreneBenzo(g,h,i)peryleneBenzo(k)fluorantheneCarbazoleChrysenebis(2-Ethylhexyl)phthalateFluorantheneFluoreneIndeno(1,2,3-c,d)pyrene1-Methylnaphthalene2-MethylnaphthaleneNaphthalenePhenanthrenePyreneBarium2,000 20,000 20,000** 720 1,500 3.3 30 2.4 60 NE 0.05 0.1 0.05 NE NE 1.2 10 0.37** 0.11 30 NE 2.6 85 12 0.7 30** 21SW-1 - 11241711/24/2017 3.7 J <10 1.0 34 2.115 842.2 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.80 <0.160.48 J<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 0.038SW-2 - 11241711/24/2017 3.2 J 2.1 J 1.1 36 <1.015 87 2.40.070 J 0.075 J0.079 J 0.12 J 0.082 J0.094 J 0.093 J 0.094 J 0.091 J0.55 J0.10 J 0.082 J 0.086 J 0.080 J 0.078 J 0.11 J 0.089 J 0.092 J 0.040SW-3 - 11211711/21/2017 3.2 J <10 1.4 55 <1.018 98 3.0<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.80 <0.160.52 J<0.16 <0.16<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 0.044SW-4 - 11211711/21/2017 3.2 J <10 1.5 60 <1.020 110 3.0<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.80 <0.160.45 J<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 0.041Trip Blank11/21/2017 <20 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NAEB - 11211711/21/2017 3.0 J <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.80 <0.160.61 J<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.025DUPLICATE - 112117SW-311/21/2017 <20 <10 1.4 57 <1.019 100 3.0<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.80 <0.160.47 J<0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 <0.16 0.044Notes:Only analytes that were detected in one or more samples are shown* = The most stringent of Freshwater Aquatic Life, Water Supply, and Human Health Standards were compared to the surface water analytical results** = Value represents a U.S. Environmental Protection Agency (EPA) Surface Water Standard2B Standards = 15A NCAC 02B Surface Water Quality Standards (September 22, 2017)Bold/yellow highlight concentrations exceed the 2B StandardsNCAC = North Carolina Administrative CodeVOCs = Volatile Organic CompoundsSVOCs = Semi-Volatile Organic CompoundsRCRA = Resource Conservation and Recovery Act μg/L = micrograms per litermg/L = milligrams per literNA = Not analyzedNE = Standard not established< = Result below laboratory reporting limitJ = Estimated laboratory concentrationQA/QC = Quality Assurance/Quality Control EB = Equipment blankDUP = Blind field surface water duplicate (taken from SW-3)QA/QCSample Name Sample DateVOCs (μg/L)SVOCs (μg/L)NCAC 2B Surface Water Standards * Surface Water
TABLE 6
Soil Gas Analytical Data - September 2018
Matheson Ave II
Brownfields Project Number 22042-18-060
2710 Chick Godley Road
Charlotte, North Carolina
SAMPLE ID SG-1 SG-2 SG-3 SG-4 SG-5 SG-6 SG-7 SG-8 SG-DUP
SAMPLE DEPTH (FEET BELOW
GROUND SURFACE)2 - 3 5 - 6 5 - 6 5 - 6 5 - 6 5 - 6 5 - 6 5 - 6 5 - 6
SAMPLE DATE 9/3/2018 9/3/2018 9/3/2018 9/3/2018 9/3/2018 9/3/2018 9/3/2018 9/3/2018 9/3/2018
Acetone 435 56.5 347 287 99.5 152 198 185 128 2.2E+05
1,3-Butadiene ND (0.40) ND (0.40) ND (0.75) ND (0.40) ND (0.40)ND (0.40) ND (0.40) ND (0.51) ND (0.40) 1.4E+01
Benzene 2.6 1.8 J ND (0.28) ND (0.15) 1.3 J 1.2 J 1.6 J 2.6 J ND (0.15) 1.2E+02
Bromodichloromethane ND (0.74) ND (0.74) ND (1.3) ND (0.74) ND (0.74) ND (0.74) ND (0.74) ND (0.87) ND (0.74) 2.5E+01
Bromoform ND (1.6) ND (1.6) ND (2.9) ND (1.6) ND (1.6) ND (1.6) ND (1.6) ND (2.0) ND (1.6) 8.5E+02
Bromomethane ND (0.34) ND (0.34) ND (0.62) ND (0.34) ND (0.34)ND (0.34) ND (0.34) ND (0.43) ND (0.34) 3.5E+01
Bromoethene ND (0.38) ND (0.38) ND (0.70) ND (0.38) ND (0.38)ND (0.38) ND (0.38) ND (0.48) ND (0.38) 2.1E+01
Benzyl Chloride ND (1.2) ND (1.2) ND (2.2) ND (1.2) ND (1.2) ND (1.2) ND (1.2) ND (1.4) ND (1.2) 7.0E+00
Carbon disulfide 2.1 J 3.1 2.3 J 2.9 4.4 3.4 4.7 21 2.6 4.9E+03
Chlorobenzene ND (0.46) ND (0.46) ND (0.88) ND (0.46) ND (0.46)ND (0.46) ND (0.46) ND (0.60) ND (0.46) 3.5E+02
Chloroethane ND (0.50) ND (0.50) ND (0.95) ND (0.50) ND (0.50)ND (0.50) ND (0.50) ND (0.63) ND (0.50) 7.0E+04
Chloroform ND (0.39) ND (0.39) ND (0.73) ND (0.39) 2.5 J ND (0.39) ND (0.39) ND (0.49) ND (0.39) 4.1E+01
Chloromethane ND (0.13) ND (0.13) ND (0.23) ND (0.13) ND (0.13)ND (0.13) ND (0.13) ND (0.16) ND (0.13) 6.3E+02
3-Chloropropene ND (0.50) ND (0.50) ND (0.91) ND (0.50) ND (0.50)ND (0.50) ND (0.50) ND (0.63) ND (0.50) 7.0E+00
2-Chlorotoluene ND (0.52) ND (0.52) ND (0.98) ND (0.52) ND (0.52) ND (0.52) ND (0.52) ND (0.67) ND (0.52) NE
Carbon tetrachloride ND (0.59) ND (0.59) ND (1.1) ND (0.59) ND (0.59) ND (0.59) ND (0.59) ND (0.75) ND (0.59) 1.6E+02
Cyclohexane 11 ND (0.30) 4.5 J 5.9 ND (0.30) 1.7 J ND (0.30) 31 1.4 J 4.2E+04
1,1-Dichloroethane ND (0.19) ND (0.19) ND (0.35) ND (0.19) ND (0.19)ND (0.19) ND (0.19) ND (0.23) ND (0.19) 5.8E+02
1,1-Dichloroethylene ND (0.27) 5.2 ND (0.48) ND (0.27) ND (0.27) ND (0.27) ND (0.27) ND (0.33) ND (0.27) 1.4E+03
1,2-Dibromoethane ND (0.55) ND (0.55) ND (1.0) ND (0.55) ND (0.55) ND (0.55) ND (0.55) ND (0.68) ND (0.55) 1.6E+00
1,2-Dichloroethane ND (0.34) ND (0.34) ND (0.61) ND (0.34) ND (0.34)ND (0.34) ND (0.34) ND (0.40) ND (0.34) 3.6E+01
1,2-Dichloropropane ND (0.36) ND (0.36) ND (0.65) ND (0.36) ND (0.36)ND (0.36) ND (0.36) ND (0.44) ND (0.36) 2.8E+01
1,4-Dioxane ND (0.76) ND (0.76) ND (1.4) ND (0.76) ND (0.76) ND (0.76) ND (0.76) ND (0.94) ND (0.76) 1.9E+02
Dichlorodifluoromethane 6.4 2.8 J ND (0.59) ND (0.33) 2.1 J 2.3 J 2.0 J ND (0.41) 2.2 J 7.0E+02
Dibromochloromethane ND (1.1) ND (1.1) ND (2.1) ND (1.1) ND (1.1) ND (1.1) ND (1.1) ND (1.4) ND (1.1) NE
trans-1,2-Dichloroethylene ND (0.11) ND (0.11) ND (0.21) ND (0.11) ND (0.11) ND (0.11) ND (0.11) ND (0.15) ND (0.11) NE
cis-1,2-Dichloroethylene ND (0.19) ND (0.19) ND (0.34) ND (0.19) ND (0.19) ND (0.19) ND (0.19) ND (0.23) ND (0.19) NE
cis-1,3-Dichloropropene ND (0.35) ND (0.35) ND (0.64) ND (0.35) ND (0.35) ND (0.35) ND (0.35) ND (0.44) ND (0.35) NE
m-Dichlorobenzene ND (0.46) ND (0.46) ND (0.84) 4.1 J 8.4 6.6 13 7.2 3.6 J NE
o-Dichlorobenzene ND (0.52) ND (0.52) ND (0.96) ND (0.52) ND (0.52)ND (0.52) ND (0.52) ND (0.66) ND (0.52) 1.4E+03
p-Dichlorobenzene ND (0.42) ND (0.42) ND (0.78) ND (0.42) ND (0.42)ND (0.42) ND (0.42) ND (0.53) ND (0.42) 8.5E+01
trans-1,3-Dichloropropene ND (0.35) ND (0.35) ND (0.64) ND (0.35) ND (0.35) ND (0.35) ND (0.35) ND (0.44) ND (0.35) NE
Ethanol 173 19.6 158 120 59.9 120 148 67.3 105 NE
Ethylbenzene 20 3.4 J 13 14 7.4 6.5 4.8 7.8 6.1 3.7E+02
Ethyl Acetate 3 3.6 ND (1.0) 4 3.3 2.7 J 21 ND (0.68) ND (0.54) 4.9E+02
4-Ethyltoluene 19 3.0 J 18 16 8.4 9.8 5.4 9.3 9.3 NE
Freon 113 ND (0.52) ND (0.52) ND (1.0) ND (0.52) ND (0.52) ND (0.52) ND (0.52) ND (0.66) ND (0.52) 3.5E+04
Freon 114 ND (0.53) ND (0.53) ND (0.98) ND (0.53) ND (0.53) ND (0.53) ND (0.53) ND (0.67) ND (0.53) NE
Heptane ND (0.29) ND (0.29) ND (0.53) ND (0.29) ND (0.29) ND (0.29) ND (0.29) 6.1 ND (0.29) 2.8E+03
Hexachlorobutadiene ND (1.9) ND (1.9) ND (3.6) ND (1.9) ND (1.9) ND (1.9) ND (1.9) ND (2.5) ND (1.9) 4.3E+01
Hexane 3 3.5 ND (0.27) 4.6 1.8 J 1.8 J 2.1 J 21 2.5 J 4.9E+03
2-Hexanone ND (0.61) ND (0.61) ND (1.1) ND (0.61) ND (0.61) ND (0.61) ND (0.61) ND (0.74) ND (0.61) 2.1E+02
Isopropyl Alcohol 5.4 2.2 6.9 5.7 4.9 4.4 10 3.4 3.9 1.4E+03
Methylene chloride 3.5 3 ND (0.38) 7.6 3.8 ND (0.20) ND (0.20) ND (0.25) 4.2 4.2E+03
Methyl ethyl ketone 1060 76.1 737 454 130 228 141 256 213 3.5E+04
Methyl Isobutyl Ketone 6.1 ND (0.57) 4.1 J 4.5 1.6 J 2.3 J 2.5 J 3.9 J 2.2 J 2.1E+04
Methyl Tert Butyl Ether ND (0.28) ND (0.28) ND (0.50) ND (0.28) ND (0.28)ND (0.28) ND (0.28) ND (0.35) ND (0.28) 3.6E+03
Methylmethacrylate ND (0.53) ND (0.53) ND (0.98) ND (0.53) ND (0.53)ND (0.53) ND (0.53) ND (0.66) ND (0.53) 4.9E+03
Propylene 1.3 J 16 ND (0.21) 2.1 J 1.7 J 2.2 J 4.5 ND (0.14) 1.1 J 2.1E+04
Styrene ND (0.32) ND (0.32) ND (0.60) ND (0.32) ND (0.32)ND (0.32) ND (0.32) ND (0.40) ND (0.32) 7.0E+03
1,1,1-Trichloroethane ND (0.71) ND (0.71) ND (1.4) ND (0.71) ND (0.71) ND (0.71) ND (0.71) ND (0.93) ND (0.71) 3.5E+04
1,1,2,2-Tetrachloroethane ND (0.76) ND (0.76) ND (1.4) ND (0.76) ND (0.76) ND (0.76) ND (0.76) ND (0.96) ND (0.76) 1.6E+01
1,1,2-Trichloroethane ND (0.65) ND (0.65) ND (1.2) ND (0.65) ND (0.65) ND (0.65) ND (0.65) ND (0.82) ND (0.65) 1.4E+00
1,2,4-Trichlorobenzene ND (2.6) ND (2.6) ND (4.8) ND (2.6) ND (2.6) ND (2.6) ND (2.6) ND (3.3) ND (2.6) 1.4E+01
1,2,4-Trimethylbenzene 86 15 89 70.3 38 47 25 46 48 4.2E+02
1,3,5-Trimethylbenzene 17 2.7 J 16 14 7.4 8.8 4.9 8.8 8.4 4.2E+02
2,2,4-Trimethylpentane 3.0 J ND (0.41) ND (0.75) ND (0.41) ND (0.41) ND (0.41) ND (0.41) 72.9 ND (0.41) NE
Tertiary Butyl Alcohol 34.3 17 38.8 33 38.8 57.3 96.7 23 44 NE
Tetrachloroethylene 4.2 2.2 ND (1.6) 1.4 22 2.2 11 1.2 J 1.7 2.8E+02
Tetrahydrofuran 905 73.7 652 410 128 216 118 257 210 1.4E+04
Toluene 38.1 8.3 23 24 13 9.4 11 11 7.5 3.5E+04
Trichloroethylene ND (0.41) ND (0.41) ND (0.75) ND (0.41) 0.97 ND (0.41) 1.3 ND (0.51) ND (0.41) 1.4E+01
Trichlorofluoromethane 4.9 3.4 J ND (1.2) 5.6 6.7 7.3 2.8 J ND (0.79) 6.2 NE
Vinyl chloride ND (0.23) ND (0.23) ND (0.43) ND (0.23) ND (0.23)ND (0.23) ND (0.23) ND (0.28) ND (0.23) 5.6E+01
Vinyl Acetate ND (0.49) ND (0.49) ND (0.88) ND (0.49) ND (0.49)ND (0.49) ND (0.49) ND (0.60) ND (0.49) 1.4E+03
m,p-Xylene 84.3 15 60.4 63.9 34 28 20 28 27 7.0E+02
o-Xylene 41 6.9 31 31 16 16 9.6 22 14 7.0E+02
Xylenes (total)125 21 91.6 94.7 50 43.9 29 49.5 42 7.0E+02
Methane 2 ND (0.75) - - ND (0.89) - ND (1.1) - 4280 E ND (0.89) 2.0E+04
Cumulative TCR - Residential 7.6E-07 2.5E-07 3.5E-07 3.8E-07 1.0E-06 2.8E-07 3.7E-07 4.3E-07 1.7E-07 1.0E-06
Cumulative THQ - Residential 1.2E-01 2.3E-02 9.2E-02 8.1E-02 4.4E-02 5.0E-02 6.5E-02 5.3E-02 4.7E-02 2.0E-01
NOTES:
All concentrations reported in micrograms per meter cubed (μg/m³) except methane, which is given in parts per million by volume (ppmv).
1 Division of Waste Management Residential Vapor Intrusion Soil Gas Screening Levels; soil gas screening level for methane given in Vapor Intrusion Guidance as 2%, which equals 20,000 ppm.
2 Methane results given in ppmv.
NE = Soil Gas Screening Level for this compound not established.
ND (#) = Analyte was not detected at or above the method detection limit shown.
"J" = Estimated concentration between the method detection limit and the reporting limit.
"E" = Indicates value exceeds laboratory calibration range.
DUP-SG = Blind duplicate sample for SG-9; identified in lab report as "DUP090318".
Cumulative TCR - Residential - Cumulative target cancer risk calculated for a residential exposure scenario.
Cumulative THQ - Residential - Cumulative target non-cancer risk (target hazard quotient) calculated for a residential exposure scenario.
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