HomeMy WebLinkAbout24003 N Davidson II EMP 20201104Environmental Management Plan
North Davidson II Brownfields Property
Brownfields Project No. 24003-20-060
2315 N. Davidson Street and
421 E. 26th Street
Charlotte, North Carolina
H&H Job No. PAM-003
October 27, 2020
#C-1269 Engineering
#C-245 Geology
CONTENTS
EMP Template Form
Tables
Table 1 Summary of Soil Analytical Data
Table 2 Summary of Groundwater Analytical Data
Table 3 Summary of Surface Water Analytical Data
Table 4 Summary of Sediment Analytical Data
Table 5 Summary of Sub-Slab Vapor Analytical Data
Table 6 Summary of Indoor Air Analytical Data
Figures
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3 Sample Location Map
Appendices
Appendix A Preliminary Site Plans
Appendix B Preliminary Cut/Fill Analysis
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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: 10/27/2020 Revision Date (if applicable): Click or tap to enter a date.
Brownfields Assigned Project Name: North Davidson II Brownfields Property
Brownfields Project Number: 24003‐20‐060
Brownfields Property Address: 2315 North Davidson Street and 421 East 26th Street, Charlotte,
Mecklenburg County, North Carolina (Figure 1)
Brownfields Property Area (acres): 3.8 acres
Is Brownfields Property Subject to RCRA Permit?.......................☐ Yes ☒ No
If yes enter Permit No.: Click or tap here to enter text.
Is Brownfields Property Subject to a Solid Waste Permit….……..☐ Yes ☒ No
If yes, enter Permit No.: Click or tap here to enter text.
COMMUNICATIONS
A copy of this EMP shall be distributed to all the parties below as well as any contractors or site workers
that may be exposed to site vapors, soil, groundwater, and/or surface water. Additionally, a copy of the
EMP shall be maintained at the Brownfields Property during redevelopment activities. NOTE, THE EMP
DOES NOT TAKE THE PLACE OF A SITE‐SPECIFIC HEALTH AND SAFETY PLAN.
Prospective Developer (PD): Mill District Partners, LLC
Contact Person: Paul Kardous
Phone Numbers: Office: 704‐997‐9339 Mobile: 704‐905‐5473
Email: paul@pamakagroup.com
Contractor for PD: Liles Construction
Contact Person: Paul Liles
Phone Numbers: Office: 704‐707‐2496 Mobile: 704‐701‐6902
Email: pliles@lilesconstruction.com
Environmental Consultant: Hart & Hickman, PC
Contact Person: Bo Cappleman
Phone Numbers: Office: 704‐586‐0007 Mobile: 980‐200‐7911
Email: bcappleman@harthickman.com
Brownfields Program Project Manager: Bill Schmithorst
Phone Numbers: Office: 919‐707‐8159 Mobile: 919‐441‐3606
Email: william.schmithorst@ncdenr.gov
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Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch,
Hazardous Waste, Solid Waste):
Not Applicable
NOTIFICATIONS TO THE BROWNFIELDS PROGRAM
Written advance Notification Times to Brownfields Project Manager: Check each box to accept
minimum advance notice periods (in calendar days) for each type of onsite task:
On‐site assessment or remedial activities:……………………………………….…… 10 days Prior ☒
Construction or grading start:……………………………………….………………………. 10 days Prior ☒
Discovery of stained soil, odors, USTs, buried drums or waste, landfill, or other signs of previously
unknown contamination: ……………………………….……………………………………. Within 48 hours ☒
Implementation of emergency actions (e.g. dewatering, flood or soil erosion control measures in
area of contamination, ventilation of work zones):…………….……….……… Within 48 hours ☒
Installation of mitigation systems:………………………….………………….……….. 10 days Prior ☒
Other notifications as required by local, state or federal agencies to implement redevelopment
activities: (as applicable): ……………………….…………………………………………..… Within 30 days ☒
REDEVELOPMENT PLANS
1) Type of Redevelopment (check all that apply):
☐Residential ☐Recreational ☐Institutional ☒Commercial ☒Office ☒Retail ☐Industrial
☒Other specify:
The Site consists of two contiguous parcels of land that total approximately 3.8 acres. The
southeastern parcel (2315 N. Davidson Street) is developed with an approximate 29,185‐square
foot (sq ft) vacant commercial building, and the northwestern parcel (421 E. 26th Street) is
developed with an approximate 14,400‐sq ft building that is utilized as an appliance warehouse.
An inactive rail corridor that is owned by the City of Charlotte separates the two Site parcels. A
Site map is presented as Figure 2.
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
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3) Summary of Redevelopment Plans (MANDATORY: attach detailed plans or conceptual plans, if
detailed plans are not available. EMP review without such information would be premature):
Provide brief summary of redevelopment plans, including demolition, removal of building
slabs/pavement, grading plans and planned construction of new structures:
Current redevelopment plans include proposed adaptive re‐use of the existing Site buildings for
mixed‐commercial purposes including retail, office, and restaurants. A proposed outdoor patio is
located on the eastern portion of the northwestern Site parcel. Redevelopment plans also
include paving the vehicle access drive and parking lot, new utility installations, and landscaping.
According to the preliminary grading plan and cut/fill analysis, approximately 2,000 cubic yards
of imported fill is expected to be needed to achieve the desired grades and implement positive
drainage across the Site. Preliminary Site plans, which include the grading plan, are included as
Appendix A, and a Preliminary Cut and Fill Analysis is included as Appendix B.
4) Do plans include demolition of structure(s)?:
☐ Yes ☒ No ☐ Unknown
☐ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements, including without limitation those related to lead and asbestos
abatement that are administered by the Health Hazards Control Unit within the Division of Public
Health of the North Carolina Department of Health and Human Services. If available, please
provide a copy of your demolition permit.
5) Are sediment and erosion control measures required by federal, state, or local regulations?
☒ Yes ☐ No ☐ Unknown
☒ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements. If soil disturbance is necessary to install sediment and erosion
control measures, they may not begin until this EMP is approved.
6) Which category of risk‐based screening level is used or is anticipated to be specified in the
Brownfields Agreement? Note: If children frequent the property, residential screening levels shall
be cited in the Brownfields Agreement for comparison purposes.
☐ Residential ☒ Non‐Residential or Industrial/Commercial
7) Schedule for Redevelopment (attach construction schedule):
a) Construction start date: 12/1/2020
b) Anticipated duration (specify activities during each phase):
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Redevelopment activities are anticipated to begin in December 2020. The approximate
duration of each phase of work is provided as follows:
Interior Demolition – 30 days
Grading – 30 days
Utility Installations – 60 days
Building Renovations – 10 months
Paving – 45 days
Landscaping – 30 days
c) Additional phases planned? ☐ Yes ☐ No
If yes, specify the start date and/or activities if known:
Start Date: Not Applicable
Planned Activity:
Additional phases of construction are not anticipated at this time.
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: TBD
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.
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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):
H&H conducted Brownfields Assessment activities at the Site in March 2020 and August 2020,
which included the collection of nine soil samples for laboratory analysis. Laboratory analytical
results of the soil samples are summarized in Table 1, and sample locations are presented on
Figure 3.
A brief summary of the soil assessment results is provided below:
VOCs
Analytical results indicate that no volatile organic compounds (VOCs) were detected in any of the
soil samples at concentrations above residential or industrial/commercial Preliminary Soil
Remediation Goals (PSRGs).
SVOCs
Analytical results indicate that several polycyclic aromatic hydrocarbons (PAHs) were detected at
concentrations above the residential and/or industrial/commercial PSRGs in soil sample SB‐5 (0‐2
ft), which was collected adjacent to the former rail spur in the south‐central portion of the Site.
No other semi‐volatile organic compounds (SVOCs) were detected at concentrations above the
residential or industrial/commercial PSRGs.
Metals
Analytical results indicate that no metals were detected at concentrations above
industrial/commercial PSRGs and Site‐specific background and/or published background levels for
North Carolina soils.
Arsenic was detected above the residential PSRG of 0.68 mg/kg in all of the nine soil samples
collected (including associated duplicate samples) and the background sample (BKG‐1).
Additionally, arsenic was detected above the industrial/commercial PSRG of 3.0 mg/kg in samples
SB‐2/SB‐DUP‐1 (6.24 mg/kg and 3.18 mg/kg), SB‐5 (13.3 mg/kg), SB‐6 (3.4 mg/kg), and SB‐DUP
(3.06). The detected arsenic concentrations are generally consistent with the Site‐specific
background detection of 3.15 mg/kg in sample BKG‐1 and within the published range of
background concentrations for North Carolina soil of 1.0 to 18 mg/kg.
Hexavalent chromium was detected above the residential PSRG of 0.31 mg/kg but below the
industrial/commercial PSRG of 6.5 mg/kg in samples SB‐2 (and duplicate sample SB‐DUP‐1), SB‐5,
SB‐8 (and duplicate SB‐DUP), and the background sample (BKG‐1).
Additional metals, including barium, cadmium, lead, mercury, and selenium, were detected at
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concentrations generally consistent with published average background levels for North Carolina
soils.
PCBs
Analytical results indicate that no polychlorinated biphenyls (PCBs) were detected in the former
junkyard area.
2) Depth of known or suspected contaminants (feet):
PAHs were detected in soil sample SB‐5, which was collected from shallow soil (0 to 2 ft below
ground surface [bgs]) along the former rail spur in the south‐central portion of the Site. No other
compounds have been detected at concentrations above the DEQ industrial/commercial PSRGs
(and/or background levels in the case of metals) in soil samples collected at the Site.
3) Area of soil disturbed by redevelopment (square feet):
The area of potential soil disturbance is estimated to be approximately 2 acres (87,120 sq ft) of the 3.8‐
acre Site. The planned areas of disturbance includes the existing vehicle access drive and parking areas
(future parking lot and patio) and landscaped areas. The remainder of the Site will remain covered by
the existing buildings and adjacent walkways. A copy of the proposed grading plan is included in the
preliminary Site plans which are provided as Appendix A.
4) Depths of soil to be excavated (feet):
Shallow soil disturbance (i.e., less than 1 ft) on the Brownfields property is currently planned for
the majority of the Site as part of re‐paving of the access drive and parking lot. Grading in the
northwestern portion of the Site and excavation for the installation of new utilities may include
excavation to depths of up to approximately 5 ft bgs.
5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan):
Based on conservative estimates of potential disturbance of up to 2 ft across an approximately 2‐
acre area, up to approximately 6,500 cubic yards of soil may be disturbed during redevelopment.
6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants:
Based on current grading and construction plans, known PAH‐impacted soils along the rail spur
are not anticipated to be excavated during redevelopment activities at the Site.
7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable:
No soil is planned to be exported from the Site. Rather, soils cut during grading and utility
installations are planned to be re‐used in areas that require fill. Should soil or buried debris need
to be exported from the Brownfields property during redevelopment, a sampling plan will be
developed and submitted to DEQ Brownfields for review and approval once the volume of soil
for export is known. Soil export is further discussed in Section 1.C. below.
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Part 1.A. MANAGING ONSITE SOIL
If soil is anticipated to be excavated from the Brownfield Property, relocated on the Brownfields
Property, or otherwise disturbed during site grading or other redevelopment activities, please
provide a grading plan that clearly illustrates areas of cut and fill (approximate areas & volumes are
acceptable, if only preliminary data available).
1) HAZARDOUS WASTE DETERMINATION:
a) Does the soil contain a LISTED WASTE as defined in the North Carolina Hazardous
Waste Section under 40 CFR Part 261.31‐261.35?....................................... ☐Yes ☒No
☐ If yes, explain why below, including the level of knowledge regarding processes
generating the waste (include pertinent analytical results as needed).
Click or tap here to enter text.
☐ If yes, do the soils exceed the “Contained‐Out” levels in Attachment 1 of the
North Carolina Contained‐In Policy?................................................. ☐ Yes ☒ No
b) NOTE: IF SOIL MEETS THE DEFINITION OF A LISTED HAZARDOUS WASTE AND EXCEEDS
THE CONTAINED‐OUT LEVELS IN ATTACHMENT 1 TO THE NORTH CAROLINA
CONTAINED‐IN POLICY THE SOIL MAY NOT BE RE‐USED ON SITE AND MUST BE
DISPOSED OF IN ACCORDANCE WITH DEQ HAZARDOUS WASTE SECTION RULES AND
REGULATIONS.
c) Does the soil contain a CHARACTERISTIC WASTE?.................................... ☐ Yes ☒ No
☐ If yes, mark reason(s) why below (and include pertinent analytical results).
☐ Ignitability Click or tap here to enter text.
☐ Corrosivity Click or tap here to enter text.
☐ Reactivity Click or tap here to enter text.
☐ Toxicity Click or tap here to enter text.
☐ TCLP results Click or tap here to enter text.
☐ Rule of 20 results (20 times total analytical results for an individual
hazardous constituent on TCLP list cannot, by test method, exceed regulatory
TCLP standard)
Click or tap here to enter text.
☒ If no, explain rationale:
Soil analytical data does not indicate detections capable of exceeding TCLP
criteria using the Rule of 20 and does not contain a Listed Waste as defined in
the North Carolina Hazardous Waste Section under 40 CFR Part 261.31‐261.35.
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
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WITH DEQ HAZARDOUS WASTE SECTION RULES AND REGULATIONS.
2) Screening criteria by which soil disposition decisions will be made (e.g., left in place, capped in
place with low permeability barrier, removed to onsite location and capped, removed offsite):
☐ Preliminary Health‐Based Residential SRGs
☒ Preliminary Health‐Based Industrial/Commercial SRGs
☒ Division of Waste Management Risk Calculator (For Brownfields Properties Only)
☐ Site‐specific risk‐based cleanup level. Please provide details of methods used for
determination/explanation.
Click or tap here to enter text.
Additional comments:
Click or tap here to enter text.
3) If known impacted soil is proposed to be reused within the Brownfields Property Boundary,
please check the measures that will be utilized to ensure safe placement and documentation of
same. Please attach a proposed location diagram/site map.
☒ Provide documentation of analytical report(s) to Brownfields Project Manager
☒ Provide documentation of final location, thickness and depth of relocated soil on site map
to Brownfields Project Manager once known
☒ Geotextile to mark depth of fill material.
Provide description of material:
The use of a geotextile is not anticipated at this time but may be considered.
☒ Manage soil under impervious cap ☒ or clean fill ☒
☒ Describe cap or fill:
Should potentially impacted soil or fill materials be encountered during redevelopment that
do not require removal for geotechnical or construction purposes and meets the definition
of beneficial fill as outlined in the Beneficial Fill Rule (15A NCAC 13B.0562), the potentially
impacted soil or fill materials may be placed beneath impervious surfaces (asphalt
pavement, sidewalks, access roads, buildings, etc.) or a minimum of 2 ft of clean fill.
☒ 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:
Click or tap here to enter text.
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Management of fugitive dust from site
☒ Yes, describe the method will include:
Significant areas of contaminated soil are not expected to be encountered or disturbed
during future Site redevelopment activities based upon previous soil sampling data.
However, the grading contractor will take into account conditions such as wind speed, wind
direction, and moisture content of soil during soil grading and stockpiling activities to
minimize dust generation. Particular attention will be paid by contractors to implement
dust control measures as needed based on Site and atmospheric conditions (i.e. by
controlled water application, hydro‐seeding, and/or mulch, stone, or plastic cover).
☐ 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. Evidence of potential impacted soil
includes a distinct unnatural color, strong odor, or filled or previously disposed materials of
concerns (i.e. chemicals, tanks, drums, etc.). Should the above be noted during Site work,
the contractor will contact the project environmental engineer to observe the suspect
condition. If the project environmental professional confirms that the material may be
impacted, then the procedures below will be implemented. In addition, the DEQ
Brownfields project manager will be contacted within 48 hours to advise that person of the
condition.
☐ No, explain rationale:
Click or tap here to enter text.
Soil Sample Collection
☐ Yes, describe the sampling method (e.g., in‐situ grab, composite, stockpile, etc.):
Click or tap here to enter text.
☒ No, explain rationale:
Collection of additional soil samples is not anticipated based on the results of previous
site assessment activities. If significant soil impact is encountered during grading and/or
installation or removal of utilities, excavation will proceed only as far as needed to allow
grading and/or construction of the utility to continue and/or only as far as needed to
allow alternate corrective measures as described below. Suspect significantly impacted
soil excavated during grading and/or utility line installation or removal may be stockpiled
and covered in a secure area to allow construction to progress. Suspect impacted soil will
be underlain by and covered with minimum 10‐mil plastic sheeting. At least one
representative sample of the soil will be collected for analysis of total VOCs, SVOCs, RCRA
metals, and hexavalent chromium. If the results of analysis of the sample indicate that
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the soil could potentially exceed toxicity characteristic hazardous waste criteria, then the
soil will also be analyzed by TCLP for those compounds that could exceed the toxicity
characteristic hazardous waste criteria. Impacted soil will be handled in the manner
described below based upon the laboratory analyses:
i. If no organic compounds are detected in a sample (other than which are
attributable to sampling or laboratory artifacts) and metals are below
industrial/commercial PSRGs or are consistent with background levels for metals, then
the soil will be deemed suitable for use as on‐Site fill or as off‐Site fill. The proposed
location(s) for off‐Site placement of soil (other than a permitted facility) along with the
receiving facility’s written approval for acceptance of the soil will be provided to DEQ for
approval prior to taking the soil off‐Site.
ii. If detectable levels of compounds are found which do not exceed DEQ
industrial/commercial PSRGs (other than which are attributable to sampling or laboratory
artifacts or which are consistent with Site‐specific background levels for metals), the TCLP
concentrations are below hazardous waste criteria, and cumulative risk calculator results
are acceptable, then the soil may be used on‐Site as fill without conditions.
iii. If detectable levels of compounds are found which exceed the DEQ
industrial/commercial PSRGs (other than which are attributable to sampling or laboratory
artifacts or which are consistent with background levels for metals) and the TCLP
concentrations are below hazardous waste criteria, then the soil, with DEQ’s written
approval, may be used on‐Site as fill below an impervious surface, at least 2 ft of
compacted clean soil, or a geotechnical fabric. If the impacted soil with concentrations
above industrial/commercial use PSRGs is moved to an on‐Site location, its location and
depth will be documented and provided to DEQ and the impacted soil will be placed
beneath at least 2 ft of compacted clean soil, an impervious surface, or covered with a
geotechnical fabric.
iv. Impacted soil may be transported to a permitted facility such as a landfill provided
that the soil is accepted at the disposal facility. If soil is transported to a permitted
facility, the permitted facility’s written approval to dispose of soil from the Site will be
included with the final redevelopment report. In the unlikely event that the sample data
indicates concentrations above TCLP hazardous waste criteria, then the soil must be
transported off‐Site to a permitted disposal facility that can accept or treat hazardous
waste.
*Please note that should the PD elect to transport export soil to a permitted facility or to
a DEQ Brownfields pre‐approved receiving facility, soil will be direct loaded onto trucks
for transport off‐Site.
If soil samples are collected for analysis, please check the applicable chemical analytes:
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi‐volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium
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and silver): Specify Analytical Method Number(s):
EPA Method 6020/7471
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium,
Herbicides, etc.): Specify Analytical Method Number(s):
Hexavalent chromium by EPA Method 7199
☒ Check to confirm that stockpiling of known or suspected impacted soils will be conducted
in accordance with Figure 1 of this EMP. Stockpile methodology should provide erosion
control, prohibiting contact between surface water/precipitation and contaminated soil,
and preventing contaminated runoff. Explain any variances or provide additional details as
needed:
☒ Final grade sampling of exposed native soil (i.e., soil that will not be under buildings or
permanent hardscape). Select chemical analyses for final grade samples with check boxes
below (Check all that apply):
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi‐volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead,
selenium and silver): Specify Analytical Method Number(s):
EPA Methods 6020/7471
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent
Chromium, Herbicides, etc.):
Hexavalent chromium by EPA Method 7199
Please provide a scope of work for final grade sampling, including a diagram of soil
sampling locations, number of samples to be collected, and brief sampling methodology.
Samples should be collected from 0‐2 ft below ground surface, with the exception of VOCs
which should be taken from 1‐2 ft below ground surface. Alternatively, a work plan for
final grade sampling may be submitted under separate cover.
Following completion of soil disturbance for any future Site development (i.e. after grading
Click or tap here to enter text.
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and utility construction), an environmental professional will be contracted to assess the
Site for areas that are not covered with a minimum of 2 ft of clean fill soil or topsoil from a
landscaping company, building foundations, sidewalks, or asphalt or concrete parking
areas, driveways or other impervious surfaces. If such areas exist, a Work Plan will be
prepared for final grade sampling for DEQ review and approval. If no such areas exist,
documentation will be provided to DEQ.
☐ 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?
Based on preliminary grading plans, approximately 2,000 cubic yards of beneficial fill will need to
be imported to the Site to achieve the desired grades. Additionally, the PD plans to import limited
amounts of organic rich topsoil from a commercial landscape material vendor for use in proposed
landscaped areas.
3) If yes, what is the anticipated depth that fill soil will be placed at the property? (If a range
of depths, please list the range.)
Beneficial fill will be used to raise the grade in the central and southeastern portions of the Site to
heights of up to 8 ft above current grade. In addition, landscaped areas will be topped with
organics rich topsoil.
4) Provide the source of fill, including: location, site history, nearby environmental concerns,
etc. Attach aerial photos, maps, historic Sanborn maps and a borrow source site history:
The source of fill has not been determined at this time. However, when a proposed source of fill
has been identified, the procedures outlined below will be followed.
5) PRIOR TO ITS PLACEMENT AT THE BROWNFIELDS PROPERTY, provide a plan to analyze fill
soil to demonstrate that it meets acceptable standards applicable to the site and can be
approved for use at the Brownfields property.
To demonstrate that imported soil is suitable for use at a commercial property, the fill soil will be
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sampled and approved by DEQ Brownfields prior to being brought to the Site. A sampling plan
will be developed and submitted for DEQ Brownfields review under separate cover and will
generally consist of one sample per 1,000 cubic yards consisting of a minimum 3 composite
samples for non‐VOC analysis and a grab sample for VOC analysis based on field screening results
(e.g., odor, PID readings, staining, etc.). DEQ approval of the sampling plan and analytical results
is required prior to bringing soil on Site. Soil will be considered suitable for use at the Site if it
does not contain compound concentrations above commercial/industrial PSRGs or Site‐specific
background levels for metals. The PD plans to import limited amounts of organic rich topsoil
from a commercial landscape material vendor for use in proposed landscaped areas. The PD
does not plan to collect samples of landscaping materials prior to placement at the Site.
6) Please check the applicable chemical analytes for fill soil samples. (Check all that apply):
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi‐volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead,
selenium and silver): Specify Analytical Method Number(s):
6020/7471
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent
Chromium, Herbicides, etc.):
Hexavalent chromium by EPA Method 7199
7) The scope of work for import fill sampling may be provided below or in a Work Plan
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.
Based on preliminary grading plans, approximately 2,000 cubic yards of beneficial fill will need to
be imported to the Site to achieve the desired grades. The PD will follow the procedures outlined
below.
If the PD plans to import fill material from the Vulcan Materials Company quarry located near
Pineville, NC or from the Martin Marietta ‐ Beatties Ford Road quarry located in Charlotte, NC,
and given that the material is virgin cut soil from said quarry, no samples of the import material
will be collected as adequate analytical data is available in the DEQ Brownfields database to
demonstrate material from these facilities is suitable for use as structural fill at a Brownfields
property.
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If fill soil is obtained from an off‐Site property that is not a known permitted quarry, a sampling
plan will be developed and submitted for DEQ review. DEQ approval of the sampling plan and
analytical results will be obtained prior to transporting import soil to the Site. The specific
sampling rate will be outlined in the aforementioned sampling plan. However, if the proposed
borrow source has not been previously developed (i.e., virgin land), soil samples will be collected
for laboratory analyses indicated above at a general rate of one per 1,000 cubic yards. If the
borrow source property has been previously developed, soil samples will be collected for
laboratory analyses indicated above at a general rate of approximately one per 500 cubic yards.
As described above, sampling will consist of a minimum 3 point composite sample for non‐VOC
analysis and a grab sample for VOC analysis based on field screening results. Fill soil will be
considered suitable for use at the Site if it does not contain compound concentrations above DEQ
commercial/industrial PSRGs or typical metals concentrations which are consistent with
background levels identified at the Site.
The PD does not plan to collect samples of landscaping materials (acquired from a commercial
vendor) prior to placement at the Site. DEQ Brownfields will be notified of the volume of
landscaping material needed and the proposed source of the material prior to placement in
proposed landscaping areas.
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.
Although exporting soil from the Site is not anticipated at this time, should export be required,
the following sampling plan with be implemented. Prior to transporting the soil off‐Site, a
sampling plan will be developed and submitted to DEQ Brownfields for review and approval.
Generally, soil samples will be collected from export soil at a rate of 1 sample per every 1,000
cubic yards of export material which will include a minimum of three combined composite
locations and one grab location. Export soil samples may be conducted in‐situ prior to onset of
grading and an In‐Situ Soil Characterization Assessment Work Plan will be provided to DEQ for
review and approval.
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DEQ approval of the sampling plan and analytical results will be obtained prior to transporting
export soil from the Site. Based on analytical results of soil samples collected from the export
soil, the soil will be transported off‐Site to a suitable location. The PD will notify DEQ
Brownfields of the location receiving the export soil. If not a permitted facility, DEQ Brownfields
approval and written approval from the receiving facility will be obtained prior to transporting
the soil off‐Site.
2) To what type of facility will the export Brownfields soil be sent?
☒ Subtitle D/Municipal Solid Waste Landfill (analytical program to be determined by
landfill)
☒ Permitted but Unlined Landfill (i.e. LCID, C&D, etc.) Analytical program to be
determined by the accepting Landfill;
☒ 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).
Prior to exporting soil to a non‐permitted facility (e.g., another Brownfields property), DEQ
Brownfields approval, DEQ Solid Waste Section approval, and written approval from the
receiving facility will be obtained prior to transporting the soil off‐Site.
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?
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☒ If yes, provide specifications on barrier materials:
Results of soil vapor assessment activities completed within the proposed 2315 North Davidson
Street building indicate that compounds are present at concentrations that pose unacceptable
vapor intrusion risks. Appropriate safety screening will be performed to protect workers during
utility installation or other activities which disturb the slab. In the event impacted soil vapors are
encountered during future redevelopment activities, worker breathing zone will be monitored
using a calibrated photoionization detector (PID). If results indicate further action is warranted,
appropriate engineering controls (such as use of industrial fans) will be implemented.
☐ If no, include rationale here:
Click or tap here to enter text.
Other comments regarding managing impacted soil in utility trenches:
The environmental professional will remain on call on an as‐needed‐basis during redevelopment
activities at the Site. In the event suspected contaminated soil and/or vapors are encountered in
utility trenches during redevelopment activities (based on observed soil staining or discoloration,
unusual and/or strong odors, or physical effects such as dizziness, lightheadedness, coughing,
difficulty breathing, etc.), the trench will be evacuated, and the environmental professional will be
called to perform appropriate safety screening of the soil/vapors. Safety screening activities include
screening the soil using a PID and monitoring the worker breathing zone with a multi‐gas monitor (or
similar instrument[s] capable of detecting VOCs and combustible gases).
If the environmental professional confirms that the material may be impacted, then the procedures
outlined in Part 1.A. Managing On‐Site Soil above will be implemented and appropriate engineering
controls (such as the use of industrial fans) will be implemented. In addition, the environmental
professional will contact the DEQ Brownfields project manager within 48 hours to advise that person
of the condition.
An evaluation of the potential for vapor transport in conduits will be discussed in the Vapor Mitigation
Plan.
PART 2. GROUNDWATER – Please fill out the information below.
1) What is the depth to groundwater at the Brownfields Property?
Depth to groundwater at the Site has ranged from approximately 4 ft bgs to 14 ft bgs.
2) Is groundwater known to be contaminated by ☐onsite ☐offsite ☒both or ☐unknown
sources? Describe source(s):
A tabular summary of historical groundwater analytical data in comparison to the North Carolina
Administrative Code (NCAC) 2L Groundwater Standards (2L Standards) and non‐residential Vapor
Intrusion Groundwater Screening Levels (GWSLs) is included as Table 2, and groundwater sample
locations are presented on Figure 3. A summary is provided below.
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VOCs
TCE was detected in samples MW‐3 (110 μg/L) and MW‐4 (669 μg/L) at concentrations above
the 2L Standard of 3.0 μg/L and the non‐residential GWSL of 4.4 μg/L. Based on the direction of
groundwater flow at the Site and adjacent properties, prior groundwater analytical data for the
Site and properties to the south‐southwest of the Site, and prior sub‐slab vapor data for the
Site, it appears that chlorinated solvent‐related groundwater impacts at the Site are related to
the upgradient former Gibbs Electroplating and/or Applied Research Group facilities located
south of the Site. Methyl tert‐butyl ether (MTBE) was detected in sample MW‐3 at a
concentration of 636 μg/L, which exceeds the 2L Standard of 20 μg/L and the residential GWSL
of 450 μg/L but is below the non‐residential GWSL of 2,000 μg/L.
SVOCs
SVOCs were not detected above the laboratory method detection limits in samples collected at
the Site.
Metals
Total chromium was detected in monitoring wells MW‐2, MW‐3, and MW‐4 at concentrations
above the 2L Standards. Dissolved chromium concentrations detected in wells MW‐2 and MW‐3
were below the 2L Standards. Therefore, the elevated total chromium concentrations appear to
be attributable to elevated turbidity in the groundwater samples. Monitoring well MW‐4 is
located downgradient of the former Gibbs Electroplating facility located south of the Site;
therefore, the chromium impacts in groundwater appear to be sourced from off‐Site.
3) What is the direction of groundwater flow at the Brownfields Property?
Based on groundwater elevation data, groundwater is expected to flow primarily northwest and
northeast towards Little Sugar Creek and a drainage feature, respectively.
4) Will groundwater likely be encountered during planned redevelopment activities?
☐Yes ☒No
If yes, describe these activities:
Groundwater is not anticipated to be encountered during the proposed redevelopment of the
Site. See below for groundwater management procedures in the unlikely event that
groundwater is encountered.
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).
Although not anticipated at this time, appropriate worker safety measures will be undertaken if
groundwater gathers in an open excavation within an area determined to be impacted (based
on previous sampling data, strong odor, unnatural color, sheen, etc.) during construction
activities. The accumulated water will be allowed to evaporate/infiltrate to the extent time for
dissipation does not disrupt the construction schedule. Should the time needed for natural
dissipation of accumulated water be deemed inadequate, an environmental professional will be
contacted and the water will be tested and disposed off‐Site (if impacted), tested and
discharged to the storm sewer (if not impacted above DEQ surface water standards) in
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accordance with applicable municipal and State regulations for erosion control and construction
stormwater control, or used for dust control at the Site (with Brownfields prior approval). In
addition, the environmental professional will contact the DEQ Brownfields project manager
within 48 hours regarding the condition.
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
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):
Little Sugar Creek is present along the northwestern Brownfields property boundary, and a
drainage feature is present along the northeastern Brownfields property boundary. Preliminary
Existing monitoring wells will be properly abandoned by a NC‐licensed well driller. DEQ will be
notified 10 days prior to abandonment of the existing monitoring wells.
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Site plans to do not include disturbance of the creek or the drainage feature. In addition, the
results of the Brownfields assessment did not indicate impact to Little Sugar Creek at
concentrations that pose an obvious health risk to future users of the Site.
If surface water run‐off gathers in an open excavation within an area determined to be impacted
during construction activities, appropriate worker safety measures will be undertaken. The
accumulated water will be allowed to evaporate (if feasible), tested and disposed off‐Site (if
impacted), tested and discharged to the storm sewer (if not impacted above DEQ surface water
standards) in accordance with applicable municipal and State regulations for erosion control and
construction stormwater control, or used for dust control at the Site (with Brownfields prior
approval). In addition, the environmental professional will contact the DEQ Brownfields project
manager within 48 hours regarding the condition. Surface water laboratory analytical results are
summarized in Table 3 and sample locations are presented on Figure 3.
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
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):
Preliminary Site plans to do not include disturbance of Little Sugar Creek or the drainage feature
located along the northwestern and northeastern Site boundaries, respectively. The results of the
Brownfields assessment did not indicate impact to the sediment in the drainage feature.
Sediment laboratory analytical results are summarized in Table 4 and sample locations are
presented on Figure 3.
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
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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
of such contact:
The environmental professional will remain on call on an as‐needed‐basis during redevelopment
activities at the Site. If contaminated soil vapors are suspected during redevelopment activities
(based on unusual or strong odors, dizziness, lightheadedness, coughing, difficulty breathing,
etc.), the excavation area will immediately be evacuated, and the environmental professional will
be called to perform appropriate safety screening of the vapors. Safety screening activities
include monitoring the worker breathing zone with a calibrated multi‐gas monitor (or similar
instrument[s] capable of detecting VOCs and combustible gases). If results indicate further
action is warranted, appropriate engineering controls (such as use of industrial fans) will be
implemented. In addition, the environmental professional will contact the DEQ Brownfields
project manager within 48 hours regarding the condition.
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:
Previous Brownfields assessment included the collection of five sub‐slab vapor samples from the
421 East 26th Street building and eight sub‐slab vapor samples from the 2315 N. Davidson Street
building. Sub‐slab vapor analytical results are summarized in Table 5, and sample locations are
presented on Figure 3.
421 East 26th Street Building
No VOCs were detected above the non‐residential Sub‐slab and Exterior Soil Gas Screening Levels
Exterior soil vapor samples have not been collected at the Brownfields property.
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(SGSLs) in the 421 East 26th Street building sub‐slab vapor samples.
The results of the risk calculations using sub‐slab vapor data for the building at 421 E. 26th Street
indicate that the calculated carcinogenic and non‐carcinogenic risks are below acceptable risk
levels for residential and non‐residential worker exposure scenarios.
2315 N. Davidson Street Building
TCE was detected at concentrations above the non‐residential SGSL of 180 µg/m3 in four of the
eight sub‐slab vapor samples (at concentrations of up to 91,000 µg/m3). Chloroform and
naphthalene were also detected in sub‐slab vapor samples collected from the 2315 N. Davidson
Street building at concentrations that exceed their respective non‐residential SGSL. No other
VOCs have been detected above the non‐residential SGSLs in the sub‐slab vapor samples collected
from the 2315 N. Davidson Street building.
The results of the risk calculations using sub‐slab vapor data for the building at 2315 N. Davidson
Street indicate that calculated carcinogenic and non‐carcinogenic risks are above acceptable risk
levels for the residential and non‐residential worker exposure scenarios.
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
The environmental professional will remain on call on an as‐needed‐basis during redevelopment
activities at the Site. If contaminated soil vapors are suspected during redevelopment activities
(based on unusual or strong odors, dizziness, lightheadedness, coughing, difficulty breathing,
etc.), the excavation area will immediately be evacuated, and the environmental professional will
be called to perform appropriate safety screening of the vapors. Safety screening activities
include monitoring the worker breathing zone with a calibrated PID and multi‐gas monitor (or
similar instrument[s] capable of detecting VOCs and combustible gases). If results indicate
further action is warranted, appropriate engineering controls (such as use of industrial fans) will
be implemented. In addition, the environmental professional will contact the DEQ Brownfields
project manager within 48 hours regarding the condition.
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
indoor air during planned redevelopment activities? ☐ Yes ☒ No ☐ Unknown
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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:
The potential for vapor intrusion into the existing Site buildings will be managed through a Vapor
Intrusion Mitigation System (VIMS) Plan that will be sealed by a NC Professional Engineer and
submitted to DEQ for approval under separate cover.
VIMS Plan shall be signed and sealed by a NC Professional Engineer
If no, please provide a brief rationale as to why no vapor mitigation plan is warranted:
Click or tap here to enter text.
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
Based on the elevated sub‐slab vapor concentrations detected beneath the 2315 N. Davidson Street
building, four indoor air samples were collected from the building in November 2019. The results of
the indoor air assessment did not indicate impacts above DEQ non‐residential Indoor Air Screening
Levels (IASLs). Indoor air laboratory analytical results are summarized in Table 6, and sample
locations are presented on Figure 3.
In the unlikely event there is evidence of potential indoor air issues (based on unusual or strong
odors, dizziness, lightheadedness, coughing, difficulty breathing, etc.) during redevelopment activities,
the area will be evacuated, and appropriate safety screening of the indoor air will be performed. If
warranted, safety screening procedures will include periodically screening indoor air for volatile
organic vapors with a calibrated PID. If results indicate further action is warranted, appropriate
engineering controls (such as use of industrial fans) will be implemented.
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EMP.
Should potentially impacted materials be identified that are inconsistent with known site
impacts, the DEQ Brownfields Project Manager will be notified and a sampling plan will be
prepared based on the EMP requirements and site‐specific factors. Samples will generally be
collected to document the location of the potential impacts.
Check the following chemical analysis that are to be conducted on newly identified releases:
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi‐volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and
silver)
EPA Method 6020 and EPA Method 7471
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ Other Constituents & Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.)
Please note, if field observations indicate the need for additional analyses, they should
be conducted, even if not listed here.
Hexavalent chromium by EPA Method 7199
Please provide details on the proposed methods of managing the following commonly
encountered issues during redevelopment of Brownfields Properties.
During construction activities, contractors may encounter unknown sub‐surface environmental
conditions (i.e. tanks, drums, or waste materials) that if encountered, will require proper
management. Prior to beginning Site work, environmental professional will attend a pre‐
construction kick‐off meeting with the PD and the redevelopment contractors to discuss the DEQ
approved EMP and various scenarios when it would be appropriate and necessary to notify the
environmental professional of the discovery of unknown subsurface features or potentially
impacted media at the Site.
In the event that such conditions are encountered during Site redevelopment activities, the
environmental actions noted below will be used to direct environmental actions to be taken during
these activities and sampling data for potentially impacted soil and the disposition of impacted soil
will be provided to DEQ when the data becomes available.
Underground Storage Tanks:
In the event a UST or impacts associated with a UST release are discovered at the site during
redevelopment activities, the UST will be removed in accordance with NC DEQ UST Section
guidelines. If the UST contains residual fluids, the fluids will be removed, sampled for VOCs, SVOCs,
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and RCRA metals, and transported off‐site for disposal at a suitable facility based on the laboratory
analytical results. Impacted soil will be managed in accordance with the Managing On‐Site Soil
section outlined above in the EMP.
Sub‐Grade Feature/Pit:
If a sub‐grade feature or pit is encountered during redevelopment, it will be removed in
coordination with the DEQ Brownfields Program. If the pit has waste in it, the waste will be set
aside in a secure area and will be sampled for waste disposal purposes for TCLP VOCs, SVOCs, and
metals and disposed off‐Site at a permitted facility or the waste will be managed in accordance with
Part 1.A. above, whichever is most applicable based on the type of waste present. If the observed
waste characteristics indicate the concrete in the pit may potentially be contaminated to a
significant degree, the concrete will be sampled and analyzed by methods specified by the disposal
facility.
Buried Waste Material:
If excavation activities result in removal of buried wastes or significantly impacted soils, the
contractor will be directed to stop work at that location and notify the environmental professional.
The environmental professional will review the soil/materials and collect samples if warranted.
Additionally, the Brownfields Project Manager will be consulted regarding the management of
potentially impacted soil or buried waste materials (if encountered). If the buried materials or soil
do not require removal for geotechnical or construction purposes, meets the definition of beneficial
fill as outlined in the Beneficial Fill Rule (15A NCAC 13B.0562), and based on the sample results (as
discussed in Part 1.A. above), they will remain in‐place and construction will proceed. If the fill
material is to be removed, confirmation sampling will be conducted at representative locations in
the base and the sidewalls of the excavation after the waste or significantly impacted media is
removed. The confirmation samples will be analyzed for VOCs, SVOCs, and RCRA metals plus
hexavalent chromium. Areas of suspected contaminated soil that remain at the Site after
excavation is complete above the industrial/commercial PSRGs will be managed pursuant to this
plan and incorporated into the final Brownfields Plat.
Re‐Use of Impacted Soils On‐Site:
Please refer to Part 1.A. above.
If unknown, impacted soil is identified on‐site, management on‐site can be considered after the
project team provides the necessary information, outlined in Part 1.A. Item 11, for Brownfields
Project Manager approval prior to final placement on‐site.
If other potential contingency plans are pertinent, please provide other details or scenarios as
needed below:
Click or tap here to enter text.
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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 1/31/2022
The Redevelopment Summary Report shall include environment‐related activities since the last
report, with a summary and drawings, that describes:
1. actions taken on the Brownfields Property;
2. soil grading and cut and fill actions;
3. methodology(ies) employed for field screening, sampling and laboratory analysis of
environmental media;
4. stockpiling, containerizing, decontaminating, treating, handling, laboratory analysis and
ultimate disposition of any soil, groundwater or other materials suspected or confirmed
to be contaminated with regulated substances; and
5. removal of any contaminated soil, water or other contaminated materials (for example,
concrete, demolition debris) from the Brownfields Property (copies of all legally required
manifests shall be included).
☒ Check box to acknowledge consent to provide a NC licensed P.G. or P.E. sealed, Redevelopment
Summary Report in compliance with the site’s Brownfields Agreement.
29
EMP Version 2, June 2018
Table 1Summary of Soil Analytical ResultsNorth Davidson II Brownfields Property2351 N. Davidson Street and 421 E. 26th StreetCharlotte, North CarolinaH&H Job No. PAM-003Sample ID SB-1 SB-2 SB-DUP-1 SB-3 SB-4 SB-5 SB-6 SB-7 SB-8 SB-DUP SB-9 BKG-1Date 03/05/2020 03/05/2020 03/06/2020 03/06/2020 08/12/2020 08/12/2020 08/11/2020 03/06/2020Area of Potential ConcernFormer Lumber ShedFormer Auto Repair ShopRail SpurCentral Portion of 2315 N. Davidson Street BuildingBackgroundDepth (ft bgs) 4-5 0-2 3-4 0-2 1-3 1-3 3-5 0-2 Range MeanVOCs (8260D)Acetone 0.0173 J 0.0757 J 0.0397 J 0.0241 J<0.00830.023 J<0.0615 <0.0405 <0.0738 <0.0533 <0.05290.0975 J 12,000 140,000Benzene<0.00082 <0.0012 <0.00093 <0.00092 <0.00079 <0.000870.0146<0.0038 <0.007 <0.005 <0.005 <0.000931.2 5.4 -- --Ethylbenzene<0.00096 <0.0014 <0.0011 <0.0011 <0.00094 <0.00100.0261<0.0051 <0.0093 <0.0067 <0.0066 <0.00116.1 27 -- --Isopropylbenzene (Cumene)<0.0013 <0.0019 <0.0015 <0.0015 <0.0013 <0.00140.0075 J<0.0034 <0.0062 <0.0045 <0.0045 <0.0015410 2,100 -- --Naphthalene<0.0039 <0.0057 <0.0044 <0.0044 <0.0038 <0.00410.145 0.0138<0.0056 <0.0040 <0.004 <0.00442.1 8.8 -- --Toluene<0.0015 <0.0022 <0.0017 <0.0017 <0.0014 <0.00160.144 0.0128 0.0094 J 0.0071 J 0.0059 J<0.0017990 9,700 -- --Trichloroethene<0.0012 <0.0017 <0.0013 <0.00130.0019 J<0.0013 <0.0051 <0.0034 <0.0062 <0.0045 <0.0044 <0.00140.87 4 -- --1,2,4-Trimethylbenzene<0.0018 <0.0026 <0.0020 <0.0020 <0.0017 <0.00190.0852 0.0057<0.0071 <0.0051 <0.0051 <0.00263 370 -- --1,3,5-Trimethylbenzene<0.0015 <0.0022 <0.0017 <0.0017 <0.0015 <0.00160.0353<0.0032 <0.0059 <0.0043 <0.0042 <0.001756 320 -- --Xylene (Total)<0.0032 <0.0047 <0.0036 <0.0036 <0.0031 <0.00340.333 0.0196<0.0056 <0.0041 <0.004 <0.0036120 530 -- --m&p-Xylene<0.0021 <0.0032 <0.0024 <0.0024 <0.0021 <0.00230.202 0.0114<0.0152 <0.0110 <0.0109 <0.0025120 500 -- --o-Xylene<0.0011 <0.0016 <0.0012 <0.0012 <0.0010 <0.00110.131 0.0083<0.0056 <0.0041 <0.0040 <0.0012140 590 -- --SVOCs (8270E)Acenaphthene<0.102 <0.494 <0.479 <0.0985 <0.1045.22<0.0981 <0.102 <0.109 <0.110 <0.113 <0.500720 9,000Acenaphthylene<0.0934 <0.454 <0.440 <0.0906 <0.09590.858 J<0.0902 <0.0934 <0.0999 <0.101 <0.104 <0.460NS NSAnthracene<0.102 <0.498 <0.483 <0.0993 <0.10514.6<0.0989 <0.102 <0.109 <0.111 <0.114 <0.5043,600 45,000 -- --Benzo(a)anthracene<0.126 <0.611 <0.592 <0.122 <0.1299.46<0.121 <0.126 <0.134 <0.136 <0.140 <0.6181.1 21 -- --Benzo(a)pyrene<0.171 <0.832 <0.806 <0.166 <0.1764.71<0.165 <0.171 <0.183 <0.186 <0.191 <0.8420.11 2.1 -- --Benzo(b)fluoranthene<0.159 <0.774 <0.750 <0.154 <0.1638.66<0.154 <0.159 <0.170 <0.173 <0.177 <0.7831.1 21 -- --Benzo(g,h,i)perylene<0.154 <0.750 <0.727 <0.150 <0.1583.37 J<0.149 <0.154 <0.165 <0.167 <0.172 <0.760NS NS -- --Benzo(k)fluoranthene<0.166 <0.809 <0.784 <0.161 <0.1712.86 J<0.161 <0.166 <0.178 <0.180 <0.185 <0.81911 210 -- --Chrysene<0.115 <0.557 <0.54 <0.111 <0.1189.44<0.111 <0.115 <0.122 <0.124 <0.128 <0.564110 2,100 -- --Dibenzofuran<0.0986 <0.480 <0.465 <0.0957 <0.1012.46 J<0.0953 <0.0987 <0.105 <0.107 <0.110 <0.48616 230 -- --Fluoranthene<0.119 <0.580 <0.562 <0.116 <0.12242.3<0.115 <0.119 <0.127 <0.129 <0.133 <0.587480 6,000 -- --Fluorene<0.106 <0.514 <0.498 <0.102 <0.1086.46<0.102 <0.106 <0.113 <0.115 <0.118 <0.520480 6,000 -- --Indeno(1,2,3-cd)pyrene<0.181 <0.878 <0.852 <0.175 <0.1852.96 J<0.174 <0.181 <0.193 <0.196 <0.201 <0.8891.1 21 -- --Phenanthrene<0.0994 <0.483 <0.469 <0.0964 <0.10241.7<0.096 <0.0994 <0.106 <0.108 <0.111 <0.489NS NS -- --Pyrene<0.109 <0.528 <0.512 <0.105 <0.11228.0<0.105 <0.109 <0.116 <0.118 <0.121 <0.535360 4,500PCBs (8082A)NA NA NA NA NA NANA NA-- -- -- --RCRA Metals (6020B/7471B/7199)Arsenic 1.87 6.24 3.18 2.91 2.3913.33.4 2.07 2.63 3.06 0.909 J 3.15 0.68 31.0 - 18 4.8Barium 37 71.5 81.5 50.5 109 64.6 144 122 67.3 72.3 235 93.6 3,100 47,00050 - 1,000 356Cadmium<0.09800.208 J 0.138 J 0.319 J<0.1040.978<0.458 <0.48 <0.549 <0.523 <0.5280.200 J 14 2001.0 - 10 (3)4.3 (3)Chromium, Hexavalent<0.3120.384 J0.415 J<0.287 <0.3320.621 J<0.288 <0.3020.527 J2.69<0.3310.550 J0.31 6.5 NSNSChromium, Trivalent 54 13.1 39.28 16.3 78.3 27.68 46.9 45.4 29.37 28.41 9.19 69.35 23,000 350,000NS NSChromium, Total 54 51.1 39.7 16.3 78.3 28.3 46.9 45.4 29.9 31.1 9.19 69.9 23,000 350,0007.0 - 300 65Lead 6.76 23.4 23.5 60.3 3.35 27.2 261 86.1 11.6 23.4 5.47 162 400 800ND - 50 16Mercury 0.0252 J 0.0910 0.0798 0.0157 J<0.003650.0156 J 0.471 0.183<0.0243 <0.0232 <0.02340.0818 2.3 9.70.03 - 0.52 0.121Selenium 0.246 J 0.534 J 0.464 J 0.250 J<0.247 <0.221 <1.14 <1.19 <1.37 <1.3 <1.310.401 J 78 1,200<0.1 - 0.8 0.42Silver<0.190 <0.187 <0.182 <0.175 <0.202 <0.181 <0.241 <0.252 <0.288 <0.274 <0.277 <0.20478 1,200ND - 5.0 (3)NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (July 2020). 2) Range and mean values of background metals for North Carolina soils published in Elements in North American Soils by Dragun and Chekiri, 2005.3) Background values reported for soils of the southeastern or conterminous United States.With the exception of metals, only constituents detected in at least one sample are shown.Soil concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.Bold concentrations exceed the DEQ IHSB Residential PSRGs and the site-specific background level for metals.Underlined concentrations exceed the DEQ IHSB Industrial/Commercial PSRGs and site-specific/average published background level for metals.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; PCBs = polychlorinated biphenylsft bgs= feet below ground surface; NS = not specified; -- = not applicable; RCRA = Resource Conservation and Recovery ActJ = estimated value between the laboratory method detection limit and the laboratory reporting limitAll Below Laboratory Method Detection LimitsPublished Background Metals Concentrations for North Carolina Soils (2)0-21-3Residential PSRGs(1)Industrial/ Commercial PSRGs(1)03/06/202008/11/2020Former JunkyardFormer JunkyardS:\AAA‐Master Projects\PAMAKA ‐ PAM\PAM‐003 N. Davidson & E. 26th\EMP\Data Tables\Combined Data Tables (9‐18‐20) RJC10/12/2020Table 1Hart & Hickman, PC
Table 3Summary of Groundwater Analytical ResultsNorth Davidson II Brownfields Property2351 N. Davidson Street and 421 E. 26th StreetCharlotte, North CarolinaH&H Job No. PAM-003Sample ID MW-1 MW-2 MW-DUP-1 MW-3 MW-4 MW-5Date 3/5/2020 3/5/2020 3/5/2020 3/6/2020Area of Potential ConcernFormer Lumber ShedFormer Junkyard AreaFormer Auto Repair ShopUpgradient Portion of SiteVOCs (8260D)Chloroform<2.3 <2.3 <2.3 <11.7 <11.73.0J70 0.81 3.6cis-1,2-Dichloroethene<0.29 <0.29 <0.292.2J<1.5 <0.2970 NS NSDiisopropyl ether<0.22 <0.22 <0.2212.8<1.1 <0.2270 1,400 5,900Methyl tert-butyl ether<0.28 <0.28 <0.28636<1.4<0.2820 450 2,000Trichloroethene<0.22 <0.22 <0.22110669<0.223.0 1.0 4.4SVOCs (8270E)-- -- --RCRA Metals (6020B, 7470A)Arsenic0.395J 0.631J<0.2500.403J 0.901J<0.25010 -- --Arsenic (Dissolved)NA <0.250 <0.250 <0.250 NA NA10 -- --Barium92.0 77.0 22.4 28.9 35.3 78.6700 -- --Barium (Dissolved)NA22.5 22.5 29.6NA NA700 -- --Cadmium<0.160 <0.160 <0.1600.424J<0.160 <0.1602.0 -- --Cadmium (Dissolved)NA <0.160 <0.160 <0.160 NA NA2.0 -- --Chromium1.15J17.81.01J13.5 3942.3510 -- --Chromium (Dissolved)NA0.689J 0.738J 1.01JNA NA10 -- --Lead0.970J 2.02 0.482J 1.01J 0.745J 1.21J15 -- --Lead (Dissolved)NA <0.2400.284J<0.240 NA NA15 -- --Selenium<0.380 <0.380 <0.3800.415J 1.33J<0.38020 -- --Selenium (Dissolved)NA <0.380 <0.380 <0.380 NA NA20 -- --Silver<0.310 <0.310 <0.310 <0.310 <0.310 <0.31020 -- --Silver (Dissolved)NA <0.310 <0.310 <0.310 NA NA20 -- --Mercury<0.0490 <0.0490 <0.0490 <0.0490 <0.0490 <0.04901.0 0.18 0.75Mercury (Dissolved)NA <0.0490 <0.0490 <0.0490 NA NA1.0 0.18 0.75Notes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) (April 2013)2) NC DEQ Division of Waste Management (DWM) Residential Vapor Intrusion Groundwater Screening Levels (GWSLs) (July 2020)3) NC DEQ DWM Non-Residential Vapor Intrusion GWSLs (July 2020)With the exception of metals, only constituents detected in at least one sample are shown.Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limitsLaboratory analytical methods are shown in parentheses.Bold concentrations exceed the DEQ 2L Standard and/or the Residential GWSL.Underlined concentrations exceed the DEQ 2L Standard and the Non-Residential GWSL.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds, RCRA = Resource Conservation and Recovery ActNA = not analyzed; NS = not specified; -- = not applicableJ = estimated value between the laboratory method detection limit and the laboratory reporting limitAll Below Laboratory Method Detection LimitsNC 2L Groundwater Standards (1) Residential GWSL(2)Non-Residential GWSL(3)3/6/2020Former Junkyard AreaS:\AAA-Master Projects\PAMAKA - PAM\PAM-003 N. Davidson & E. 26th\EMP\Data Tables\GW Data Table_10-12-2010/19/2020Table 3 Hart & Hickman, PC
Table Summary of Surface Water Analytical ResultsNorth Davidson II Brownfields Property2351 N. Davidson Street and 421 E. 26th StreetCharlotte, North CarolinaH&H Job No. PAM-003Sample IDSW-1SW-2SW-DUPDate08/11/2020DescriptionDowngradient Portion of Little Sugar CreekVOCs (8260D)Chloromethane<0.390.83 J<0.3996 (2)cis-1,2-Dichloroethene3.64.84.8720 (2)Methyl tert-butyl ether<0.280.31 J 0.34 J34,000 (2)Tetrachloroethene2.32.72.7120 (2)Trichloroethene11.113.112.230SVOCs (8270E)All Below MDLs--------RCRA Metals (6020B/7470A)Arsenic1.02 J0.812 J0.914 J340Barium45.247.747.521,000Cadmium<0.478<0.478<0.4781.93 (3)Chromium1.64 J1.52 J1.69 J16 (4)Lead<2.49 <2.49 <2.4941.65 (3)Mercury<0.1 <0.1 <0.10.012Selenium<0.657 <0.657 <0.6575Silver<0.513 <0.513 <0.5131.62 (3)Notes:1) North Carolina Department of Environmental Quality (DEQ) 15 NCAC 02B Surface Water Quality Standards (2B Standards) andCriteria for Class C Waters (June 2019). Acute values used for metals.2) North Carolina In-Stream Target Values for Surface Waters for Class C Waters (June 2019)3)Standard derived using the DEQ Hardness-Dependent Metal Calculator dated June 2019 using the DEQ published medianhardness for Little Sugar Creek of 67 mg/L as CaCO3.4)Conservatively used values for hexavalent chromium.With the exception of metals, only constituents detected in at least one sample are shown.Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limitsLaboratory analytical methods are shown in parentheses.Bold concentrations exceed the DEQ 2L Standard.Underlined concentrations exceed the DEQ 2L Standard and the Non-Residential GWSL.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds, RCRA = Resource Conservation and Recovery Act-- = not applicable; J = estimated value between the laboratory method detection limit and the laboratory reporting limit2B Standards(1)08/11/2020Upgradient Portion of Little Sugar CreekS:\AAA‐Master Projects\PAMAKA ‐ PAM\PAM‐003 N. Davidson & E. 26th\EMP\Data Tables\Combined Data Tables (9‐18‐20) RJC10/12/2020Table 3Hart & Hickman, PC
Table Summary of Sediment Analytical ResultsNorth Davidson II Brownfields Property2351 N. Davidson Street and 421 E. 26th StreetCharlotte, North CarolinaH&H Job No. PAM-003Sample IDSED-1SED-DUPDate08/11/202008/11/2020Location DescriptionRangeMeanVOCs (8260D)p-Isopropyltoluene<0.00340.004 J NS NS -- --Naphthalene 0.0036 J 0.0064 2.1 8.8 -- --Toluene 0.0074 0.0134 990 9,700 -- --1,2,4-Trimethylbenzene<0.00450.0053 J 63 370 -- -- SVOCs (8270E)Fluoranthene<0.1340.170 J 480 6,000 -- --Pyrene<0.1220.177 J 360 4,500 -- --RCRA Metals (6020B/7471B/7199)Arsenic0.951 J1.250.6831.0 - 184.8Barium62.340.83,10047,00050 - 1,000356Cadmium<0.488<0.503142001.0 - 10 (3)4.3 (3)Chromium, Hexavalent<0.307 <0.3160.31 6.5 NS NSChromium, Trivalent 12.3 25 23,000 350,000 NS NSChromium, Total 12.3 25 23,000 350,000 7.0 - 300 65Lead 15.3 12.3 400 800 ND - 50 16Mercury<0.0216 <0.02232.3 9.7 0.03 - 0.52 0.121Selenium<1.21 <1.2578 1,200 <0.1 - 0.8 0.42Silver<0.256 <0.26478 1,200ND - 5.0 (3)NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) (July 2020).With the exception of metals, only constituents detected in at least one sample are shown.Concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compoundsNS = not specified; -- = not applicable; RCRA = Resource Conservation and Recovery ActJ = estimated value between the laboratory method detection limit and the laboratory reporting limitDrainage Feature in Northern Portion of the SiteResidential PSRGs(1)Industrial/ Commercial PSRGs(1)Published Background Metals Concentrations for North Carolina Soils (2)S:\AAA‐Master Projects\PAMAKA ‐ PAM\PAM‐003 N. Davidson & E. 26th\EMP\Data Tables\Combined Data Tables (9‐18‐20) RJC10/12/2020Table Hart & Hickman, PC
Table 5Summary of Sub-slab Vapor Analytical ResultsNorth Davidson II Brownfields Property2351 N. Davidson Street and 421 E. 26th StreetCharlotte, North CarolinaH&H Job No. PAM-003Sample IDSample LocationSample DateAnalytical MethodAcetoneBenzene2-Butanone (MEK)Carbon DisulfideCarbon TetrachlorideChloroformChloromethaneCyclohexane1,2-Dichlorobenzene1,4-DichlorobenzeneDichlorodifluoromethane (Freon 12)cis-1,2-DichloroethyleneEthanolEthylbenzene4-EthyltolueneHeptaneHexane2-Hexanone (MBK)IsopropanolMethylene Chloride4-Methyl-2-pentanone (MIBK)NaphthalenePropeneStyreneTetrachloroetheneTetrahydrofuranTolueneTrichloroetheneTrichlorofluoromethane (Freon 11)1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenem&p-Xyleneo-XyleneSS-1 8/8/2019 100J<2.6 <9.2 <4.3 <4.1260<2.8 <4.9 <5.8 <7.3 <4.3 <3.2120J<5.0 <6.0 <4.8 <12 <4.8 <6.0 <8.4 <3.9 <8.0 <3.4 <5.3860<3.9 <3.991,000<6.5 <6.3 <6.2 <10 <5.4SS-2 8/8/2019 120 0.5J 7.2J<0.430.63J 1.9<0.28 <0.49 <0.58 <0.732.5<0.32130<0.50 <0.60 <0.48 <1.2 <0.485.4J<0.84 <0.390.86J<0.34 <0.5319<0.390.89272.0J<0.63 <0.62 <1.0 <0.54SS-3 220 0.33J 5.7J 4.3J<0.411.3<0.28 <0.49 <0.58 <0.73 <0.43 <0.32130<0.50 <0.60 <0.48 <1.2 <0.4816J<0.84 <0.39 <0.80 <0.34 <0.533.2<0.390.65J<0.431.9J<0.63 <0.62 <1.0 <0.54DUP-2/SS-3 230 0.42J 7.5J 5.3J<0.41 <0.36 <0.28 <0.49 <0.58 <0.732.3<0.32110<0.50 <0.60 <0.48 <1.2 <0.4811J<0.84 <0.390.86J<0.34 <0.533.1<0.390.83<0.431.9J<0.63 <0.62 <1.0 <0.54SS-4 8/8/2019 260 1.3 9.5J 25<0.41 <0.36 <0.28 <0.49 <0.58 <0.732.9<0.32110 2.2 2.4<0.48 <1.2 <0.4812J 0.85J<0.390.94J 17<0.53 <0.75 <0.393.2<0.431.0J 14 8.9 8.9 3.6SS-5 8/8/2019 72 1.1 10J 8.6<0.41 <0.36 <0.28 <0.49 <0.58 <0.732.8<0.3251 0.94<0.602.6 6.1J<0.489.4J<0.84 <0.391.7<0.34 <0.537.4<0.394.2 1.2 3.2J 2.6 1.4 3.4 1.5SS-6 8/8/2019 56 0.87 6.9J 20<0.41 <0.36 <0.28 <0.49 <0.58 <0.732.7<0.3251 0.64J<0.60 <0.48 <1.2 <0.486.7J<0.84 <0.391.7<0.34 <0.538.4<0.393.4 6.1 2.7J<0.63 <0.622.1 0.82JSS-7<86018J<150 <120 <2592<24 <25 <33 <20 <23 <202,600 22J 32J<27 <96 <35 <340 <120 <3244J<87 <18540<11023J43,000<64120 49J 77J 43JSS-DUP/SS-7<860 <14 <150 <120 <258232J<25 <33 <20 <23 <20600J<14 <23 <27 <96 <35 <340 <120 <32 <44 <87 <18540<110 <1643,000<6431J<1927J<17SS-8 8/11/2020 600 1.8 22J<1.6 <0.33290.45J 2.5 0.53J 1.1J 2.8<0.271,000 34 82 1.2<1.36.5 28 1.7J 3.4J4.7J2.6J 0.44J 170<1.54.05,0006.0 190 40 180 110SS-9 8/11/2020 140J 0.27J 8.7J 34<0.33 <0.24 <0.322.5<0.440.36J<0.31 <0.2752 1.6 51 1.3<1.3 <0.467.6J<1.60.79J3.9<1.20.39J 1.4<1.55.0<0.401.5J 130 88 8.5 7.4SS-10 8/11/2020<860 <14 <150 <120 <2515033J<25 <33 <20 <23 <201,300<1432J<27 <96 <35 <340 <120 <32 <44 <87 <18560<110 <1626,000<6466J 27J 42J 25JSS-11 8/11/2020 170 1.3 44 8.3<0.33 <0.24 <0.321.5<0.44 <0.272.9<0.27150 0.97<0.302.2 2.9J 11 38<1.630 1.5J 6.8J 1.3 8.5<1.54.4<0.402.1J 1.1 0.31J 230 0.76JSS-12 8/11/2020 59 0.58J 16J 4.9J<0.33 <0.24 <0.326.7<0.44 <0.273.0<0.27150 0.28J 0.31J<0.35 <1.33.1 13J<1.6 <0.430.88J<1.20.31J 27 7.1 1.1 1.2 2.7J 0.47J<0.261.1J 0.43JSS-13 8/11/2020 38<0.193.6J<1.60.45J 0.57J<0.322.1<0.44 <0.272.9 1.7 300 0.23J 0.31J<0.35 <1.3 <0.4612J<1.60.67J 0.84J 1.5J 0.77J 4.1<1.50.83 3.1 1.8J 0.37J<0.260.8J 0.33J220,000 12 35,000 4,900 16 4.1 630 42,000 1,400 8.5700 NS NS 37 NS 2,800 4,900 210 1,400 3,400 21,000 2.821,0007,00028014,00035,00014 NS 420 420 700 7002,700,000 160 440,000 61,000 200 53 7,900 530,000 18,000 110 8,800 NS NS 490 NS 35,000 61,000 2,600 18,000 53,000 260,000 36 260,000 88,000 3,500 180,000440,000 180 NS 5,300 5,300 8,800 8,800Notes:1) North Carolina Department of Environment Quality (DEQ) Division of Waste Management (DWM) Residential Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) (July 2020)2) North Carlolina DEQ DWM Non-Residential SGSLs (July 2020).Bold values exceeds the NCDEQ DWM Residential SGSL.Bold and Underlined value exceeds the NCDEQ DWM Residential and Non-Residential SGSL.Compound concentrations are reported to the laboratory detection limits.Compound concentrations are reported in micrograms per cubic meter (µg/m3).J = estimated concentration between the laboratory method detection limit and the laboratory reporting limitNS = Not SpecifiedDWM Residential SGSL (1)DWM Non-Residential SGSL (2)2315 N. Davidson StreetTO-158/8/2019421 E. 26th Street2315 N. Davidson Street8/11/2020421 E. 26th StreetS:\AAA‐Master Projects\PAMAKA ‐ PAM\PAM‐003 N. Davidson & E. 26th\EMP\Data Tables\Combined Data Tables (9‐18‐20) RJC10/12/2020Table 5Hart & Hickman, PC
Table 6
Summary of Indoor Air Analytical Data
North Davidson II Brownfields Brownfields Property
2315 N. Davidson Street and 421 E. 26th Street
Charlotte, North Carolina
H&H Job No. PAM-003
Sample IDSample LocationSample DateAnalytical MethodChloroformTetrachloroethyleneTrichloroethyleneIAS-1 0.10 J <0.13 0.14 J
IAS-1 Duplicate
(DUP-1)0.20 0.34 <0.076
IAS-2
Southern Portion of
2315 N. Davidson Street
Building
11/6/2019 0.086 J <0.13 <0.076
IAS-3
Northern Portion of
2315 N. Davidson Street
Building
11/6/2019 0.13 J 0.16 J <0.076
IAS-4
Eastern Portion of
2315 N. Davidson Street
Building
11/6/2019 0.12 J <0.23 <0.13
BKG-1 Upwind, West of 2315 N.
Davidson Street Building 11/6/2019 <0.11 <0.23 <0.13
0.12 8.3 0.42
0.53 35 1.8
Notes:
1) North Carolina Department of Environment Quality (DEQ) Division of Waste Management (DWM)
Residential and Non-Residential Indoor Air Screening Levels (IASLs) dated July 2020. Based on a Total
Cumulative Risk of 1x10-6 and a Target Hazard Quotient of 0.2.
Compound concentrations are reported in micrograms per cubic meter (µg/m3).
Compound concentrations are reported to the laboratory detection limits.
J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit
resulting in a laboratory estimated concentration.
IAS = indoor air sample; BKG = background
DWM Non-Residential IASL (1)
TO-15
DWM Residential IASL (1)
Western Portion of
2315 N. Davidson Street
Building
11/6/2019
S:\AAA‐Master Projects\PAMAKA ‐ PAM\PAM‐003 N. Davidson & E. 26th\EMP\Data Tables\Indoor Air Data Table (11‐29‐19)
10/12/2020
Table 6
Hart & Hickman, PC
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE EAST, NORTH CAROLINA 1991
TITLE
PROJECT
SITE LOCATION MAP
1257+'$9,'621,,%52:1),(/'63523(57<
2315 N. DAVIDSON STREET & 421 E. 26TH STREET
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
0
1PAM-003
SITE
REVISION NO. 0
JOB NO. PAM-003
DATE: 9-1-20
FIGURE NO. 2
NORTH DAVIDSON II BROWNFIELDS PROPERTY
2315 N. DAVIDSON STREET &
421 E. 26TH STREET
CHARLOTTE, NORTH CAROLINA
SITE MAP
LEGEND
SITE PROPERTY BOUNDARY
FORMER RAIL SPUR
LITTLE SUGAR CREEK
DRAINAGE FEATURE
POLE-MOUNTED TRANSFORMER
DUMPSTER
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyLYNX LI
G
HT
RAIL
N. DAVIDSON STREETE.
2
6
T
H
S
T
R
E
E
T
JOR
D
A
N
P
L
A
C
E
N. BREVARD
ST
REET
FORMER
-81.<$5'
)250(5
/80%(5
6+('
APPROXIMATE
LOCATION OF
FORMER AUTO
REPAIR SHOP
FORMER
MUNDET
CORK
CORP.
FORMER
LAWRENCE
KNITTING
MILLS
VACANT SUITE /
FORMER BREWERY
NODA SELF STORAGE
(FORMER U.S. TEXTILE CORP.)
(2401 N. DAVIDSON STREET)
YANDLE METAL SHOP
(2414 N. DAVIDSON STREET)
YANDLE METAL SHOP
(FORMER GENERAL LATEX &
CHEMICAL CORP.)
(2414 N. DAVIDSON STREET)
COLLECTIVE APARTMENT COMPLEX
(FORMER R.H. BOULIGNY, INC.)
(2300 N. DAVIDSON STREET)
NODA BREWING COMPANY
(FORMER GIBBS ELECTROPLATING)
(2229 N. DAVIDSON STREET)
PERFORMANCE LOGISTICS
(511 E. 25TH STREET)
WOODTECH INTERIORS, INC
(2228 N. BREVARD STREET)
SUPERIOR STONE OF THE
SOUTHEAST
(2310 N. BREVARD STREET)
FORMER APPLIED
RESEARCH GROUP
(2221 N. DAVIDSON STREET)
RHINO MARKET & DELI AND
FREE RANGE BREWING
(2320 N. DAVIDSON STREET)
VACANT OFFICES AND
WAREHOUSE / FORMER
WALKER MARTIN, INC.
ELECTRICAL APPLIANCE
WAREHOUSE
NOTES:
1. AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS (2019).S:\AAA-Master Projects\PAMAKA - PAM\PAM-003 N. Davidson & E. 26th\Brownfields Assessment\Figures\Site Map_R1.dwg, FIG 2, 9/15/2020 3:13:59 PM, shorgan
MW-10
IAS-1/SS-1
MW-1
MW-3
SB-1
SS-6
IAS-3/SS-3
IAS-4/SS-4
SS-5
MW-2
SB-2
SB-3
SB-4
BKG-1
MW-4 SB-5
IAS-2/SS-2
SS-7
SB-9
SS-8
SS-9
SS-10
SS-13
SS-12
SB-7
SB-6
SB-8
SW-2
SW-1
SS-11
SED-1
REVISION NO. 0
JOB NO. PAM-003
DATE: 9-28-20
FIGURE NO. 3
NORTH DAVIDSON II BROWNFIELDS PROPERTY
2315 N. DAVIDSON STREET &
421 E. 26TH STREET
CHARLOTTE, NORTH CAROLINA
SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
FORMER RAIL SPUR
LITTLE SUGAR CREEK
DRAINAGE FEATURE
EXISTING GROUNDWATER
MONITORING WELL
SOIL BORING
SUB-SLAB VAPOR SAMPLE POINT
CO-LOCATED SUB-SLAB VAPOR
AND INDOOR AIR SAMPLE POINT
SURFACE WATER SAMPLE
LOCATION
SEDIMENT SAMPLE LOCATION
ABANDONED MONITORING WELL
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 GeologyLYNX LIGHT
RAIL
N. DAVIDSON STREETE. 2
6
T
H
S
T
R
E
E
T
JOR
D
A
N
P
L
A
C
E
APPROXIMATE LOCATION
OF FORMER LUMBER
WAREHOUSE
APPROXIMATE LOCATION OF
FORMER AUTO REPAIR SHOPN. BREVARD STREET
MW-5
SB-1
MW-1
NOTES:
1) MONITORING WELLS MW-1 THROUGH MW-5 WERE
INSTALLED IN APRIL 2016 BY SUMMIT ENGINEERING.
2) SOIL SAMPLES WERE COLLECTED BY H&H ON
3/5/-6/2020 AND 8/11-12/2020.
3) SUB-SLAB VAPOR SAMPLES COLLECTED BY H&H ON
8/8/2019 AND 8/11/2020.
4) INDOOR AIR SAMPLES COLLECTED BY H&H ON
11/12/2019.
5) SEDIMENT AND SURFACE WATER SAMPLES
COLLECTED BY H&H ON 8/11/2020.
IAS-1/SS-1
MW-10
SS-7
SW-1
SED-1
Appendix A
Preliminary Site Plans
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Appendix B
Preliminary Cut/Fill Analysis