HomeMy WebLinkAbout18050_EMP &AWP_20190204
CONTENTS
Completed EMP Form
Figures
Figure EMP-1 Site Map
Figure EMP-2 Sample Location Map
Attachments
Attachment A Cut/Fill Exhibit
Attachment B Brownfields Work Plan Addendum
Attachment C Laboratory Analytical Results – Summary Tables
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GENERAL INFORMATION
Date: 1/29/2018 Revision Date (if applicable): 2/1/2019
Brownfields Assigned Project Name: Former Cenco Inc.
Brownfields Project Number: 18050‐14‐060
Brownfields Property Address: 609 Melynda Road, Charlotte, Mecklenburg County
Brownfields Property Area (acres): 14.5 acres consisting of Mecklenburg County parcel Nos.
05712101, 05712102, and 05712302. Parcel No. 05712218 was removed from the Brownfields
project. The site location is presented on Figure EMP‐1.
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): Melynda Road Realty, LLC (MRR)
Contact Person: Tim Frye, Sr.
Phone Numbers: Office: 704‐596‐0555 Mobile: 704‐564‐0011
Email: timfryesr@fsiinc.biz
Contractor for PD: Eastern Solutions, LLC
Contact Person: Derek Rothaupt
Phone Numbers: Office: 803‐746‐5180 Mobile: 803‐431‐9016
Email: derek@easternsolutionsenv.com
Environmental Consultant: Hart & Hickman, PC
Contact Person: John Reuscher, PG
Phone Numbers: Office: 704‐887‐4634 Mobile: 704‐575‐8415
Email: jreuscher@harthickman.com
Brownfields Program Project Manager: Sarah Hardison Young
Phone Numbers: Office: 919‐707‐8382 Mobile: Click or tap here to enter text.
Email: sarah.hardison@ncdenr.gov
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Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch,
Hazardous Waste, Solid Waste):
IHSB
Miguel Alvalle; 704‐663‐1699; Miguel.Alvalle@ncdenr.gov
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:
Development activities covered under this EMP include construction of a gravel storage lot, a storm
water retention pond, gravel access road, and stream crossing on the eastern portion of parcel No.
05712102. In addition, a fire occurred on November 7, 2018 which damaged the main operational
building located on the central and western portions of parcel No. 05712102. Currently, repair or
replacement of the building is being determined. As a result, MMR requires the construction of a
building along the south side of the parcel to continue its operations and the continued
employment of staff. The proposed new building location is presented on the Cut/Fill Exhibit
included as Attachment A.
MRR plans to redevelop the site for the transit, distribution, and warehousing of commercial goods;
container storage yards and depot operations; truck and container maintenance and repairs;
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container sales; intermodal and transportation services; and other potential commercial purposes
in accordance with any Land Use Controls that the Brownfields Agreement may impose.
Landscaping, vegetation removal, grading, and construction of the gravel storage area, storm water
retention pond, gravel access road, stream crossing, and new building footers will be conducted in
accordance with any Land Use Controls that the Brownfields Agreement may impose. Final grading
plans will be provided to the Brownfields Program when completed.
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):
Provide brief summary of redevelopment plans, including demolition, removal of building
slabs/pavement, grading plans and planned construction of new structures:
The former wastewater treatment building, former scale building, and a former boiler/storage
building will not be demolished but may undergo some minor renovations and upgrades as
redevelopment proceeds. The main operational building will either be repaired or re‐built. The
building locations are presented on Figure EMP‐1. These renovations and upgrades are not
expected to involve removal of building slabs or exposing/removing soil; however, MMR requires
the construction of a building along the south side of the parcel to continue its operations and the
continued employment of staff. The building is expected to be constructed on slab and consist of
approximately 2,700 square feet. It is expected that two footers will be poured along the outside
edges of the slab at depths of approximately two to three feet below ground surface (ft bgs).
In accordance with the notification provisions on page 4 of this EMP, MRR will notify the
Brownfields Project Manager in writing before beginning renovations to the site structures which
may involve disturbance to building slabs or soils. Redevelopment of the Site is expected to occur
in phases; however, currently no additional redevelopment is scheduled to occur beyond those
described in Section 1. Prior to each phase of redevelopment, an addendum to the EMP will be
submitted to the Brownfields Program and approved by the Brownfields Project Manager before
initiating the proposed work. The addendum will include the most up‐to‐date site plans. A Cut/Fill
Exhibit for the redevelopment work covered in this EMP is included as Attachment A.
4) Do plans include demolition of structure(s)?:
☐ Yes ☐ No ☒ Unknown
☐ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements, including without limitation those related to lead and asbestos
abatement that are administered by the Health Hazards Control Unit within the Division of Public
Health of the North Carolina Department of Health and Human Services. If available, please
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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):
As summarized in H&H’s Phase I Environmental Site Assessment (ESA) reports dated July 20, 2015
and December 5, 2016, residual soil impact in several areas may be present and potentially include:
1) bis(2‐ethylhexl) phthalate and 1,4‐dichlorobenzene in the former truck wash sewer line
excavated in 1993; 2) benzoic acid, phenol, 4‐methylphenol, 2,4‐dimethylphenol, and 1,2,4‐
trichlorobenzene in the former concrete trough abandoned in 1994; 3) trichloroethene, benzene,
chlorobenzene, ethylbenzene, styrene, vinyl chloride, xylenes, 1,2,4‐trichlorobenzene, 1,2‐
dichlorobenzene, cis‐1,2‐dichloroethene, di‐n‐butyl phthalate, 1,4‐dichlorobenzene, and 1,3‐
dichlorobenzene in the former concrete lined basin excavated in 1995; 4) ethylbenzene, xylenes,
chlorobenzene, styrene, trichloroethene, acetone, toluene, bis(2‐ethylhexyl) phthalate, dimethyl
phthalate, and tetrachloroethene in the former trenches excavated in the mid‐1990s; 5) benzoic
acid and di‐n‐butyl phthalate in the former drum storage area; 6) di‐n‐butyl phthalate and bis(2‐
ethylhexyl) phthalate in the filled‐in gully area; ethyl acrylate in the former product storage area
and the former rail car unloading area; and bis(2‐ethylhexyl) phthalate, di‐n‐octyl phthalate, and
butyl benzl phthalate in the former waste water treatment plant area. As summarized in H&H’s
Brownfields Assessment Report dated July 13, 2018, polychlorinated biphenyls (PCBs) including
Aroclor 1254 and PCB congeners including PCB 105, PCB 118, PCB 126, and the remaining non
dioxin‐like PCB congeners have been detected in the former trench area.
Laboratory analytical results of samples collected at the site as part of the Brownfields assessment
are presented in Attachment C. Sample locations are presented on Figure EMP‐2.
2) Depth of known or suspected contaminants (feet):
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Residual soil impact at the areas described above ranges from approximately two ft bgs to
approximately nine ft bgs.
3) Area of soil disturbed by redevelopment (square feet):
Approximately 187,650 square feet (4.3 acres) will be disturbed and redistributed to level the
property and to implement positive drainage flow across the site. A Cut/Fill Exhibit for the
redevelopment work covered in this EMP is included as Attachment A. Grading activities will be
conducted in accordance with applicable local, state, and federal regulations including submittal of
an erosion control plan to Mecklenburg County. The grading contractor will utilize grading
equipment (i.e., backhoes, front end loaders, bull dozers, etc.) and will implement best
management practices (i.e., installation of silt fencing) to manage soil on‐site during site
redevelopment activities.
4) Depths of soil to be excavated (feet):
The maximum depth of excavation is minimal in the area where the gravel storage area and former
trench footprint is located and extends to approximately one ft bgs. Excavation of a storm water
retention basin on the eastern portion of the site will extend to approximately nine ft bgs.
Construction of the new building footers is expected to extend two to three ft bgs.
5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan):
Approximately 6,950 cubic yards of soil will be excavated and redistributed on‐site, with the
majority of the volume associated with construction of the storm water retention basin. Soil
excavated during removal of tree stumps/root balls located within and adjacent to the former
trenches is not included in this estimated total. Soil generated from the removal of tree
stumps/root balls will be disposed off‐site as discussed in the Brownfields Work Plan Addendum
included as Attachment C.
6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants:
Only soil generated from the removal of tree stumps and root balls from within and adjacent to the
former trenches will be disposed off‐site. That volume is expected to be minimal.
7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable:
Expected to be minimal in volume (approximately 15 cubic yards).
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
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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 See below.
☒ 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)
No soil or sludge samples collected at the site exceeded this
Rule.
☒ If no, explain rationale:
Sludge samples collected from the former concrete trough at the site for disposal
characterization did not exhibit hazardous levels of constituents. Samples were
analyzed for TCLP VOCs, SVOCs, and RCRA Metals and total PCBs.
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
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☒ 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:
Note that the proposed gravel storage lot is larger than the former trench area footprint as
shown on the Exhibit in Attachment A.
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:
Orange nonwoven geotextile demarcation fabric.
☒ Manage soil under impervious cap ☒ or clean fill ☐
☒ Describe cap or fill:
If apparent impacted soil from other areas of the Site is used to fill areas in the former trench
footprint, the area will be overlain with orange nonwoven demarcation fabric and six‐inches of
gravel. The final dimensions of the demarcated area will be surveyed for inclusion on a plat
map. Impacted soil, if any, will not be used as fill in other areas at the site outside of the
former trench area footprint.
☐ 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:
Typical construction dust control measures will be utilized such as wetting with water trucks
or hoses to manage nuisance dust levels. Additionally, a water truck or similar unit will be
used to wet soil attached to tree stumps and root balls removed from within and adjacent to
the former trenches. The process for removal of tree stumps and root balls is further
Click or tap here to enter
text.
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discussed in the Work Plan included as Attachment B.
☐ 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:
Following completion of the geophysical survey, field screening will be conducted as tree
stumps and root balls are removed from within and adjacent to the former trenches and
when soil samples are collected for laboratory analysis. During soil disturbance, the workers
or contractors will observe soils for evidence of a distinct unnatural color, strong odor, or fill
disposed materials of concerns (i.e., dried sludge, chemicals, tanks, drums, subsurface piping,
etc.). Should the above be noted during site work, the contractor will contact the project
environmental professional to observe the suspect condition. If the project environmental
professional confirms that the material may be impacted (using field observations and
screening with a Photo‐ionization Detector), then the soils will be managed in accordance
with this EMP and the Brownfields Program Project Manager will be contacted within 48
hours to advise of the condition. During grading and soil disturbance, field screening using
visual observations will be performed periodically by the project environmental professional
in areas where there is an increased potential of encountering impacted media. These areas
include the former trench area footprint, storm water retention basin, and stream cross‐over.
☐ 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.):
Soil sampling will be conducted as summarized in the Brownfields Work Plan Addendum
included as Attachment B. The proposed sample locations are shown on the Cut/Fill Exhibit
included as Attachment A.
☐ No, explain rationale:
Click or tap here to enter
text.
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 6010D and Method 7470A (mercury only)
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ PCBs: Specify Analytical Method Number(s):
EPA SW‐846 Method 8082A. A sample will also be collected for possible analysis of
PCB congeners according to EPA Method 1668A based on the results of the 8082A
analysis.
☐ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium,
Herbicides, etc.): Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ 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 Method 6010D and Method 7470A (mercury only)
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ PCBs: Specify Analytical Method Number(s):
EPA SW‐846 Method 8082A. A sample will also be collected for possible analysis
of PCB congeners according to EPA Method 1668A based on the results of the
8082A analysis.
☐ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent
Chromium, Herbicides, etc.):
Click or tap here to enter text.
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
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text.
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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 soil sampling will be conducted prior to placement of the gravel in the storage
area. It is anticipated that ten final grade soil samples will be collected from the approximate
locations shown on the Cut/Fill Exhibit in Attachment A.
The area containing impacted soil is located at a depth of approximately two ft bgs and will
be filled with up to two feet of soil generated during excavation of the storm water retention
basin and imported soil from a Brownfields‐approved source. Subsequently, the area will be
covered with orange nonwoven geotextile demarcation fabric and a minimum of six inches of
gravel (crush and run). No exposure to contaminated soil remaining on‐site will occur.
☐ If final grade sampling was NOT selected please explain rationale:
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?
280 cubic
yards.
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.)
Based on the Exhibit in Attachment A, fill depths at the site range from approximately 0.36 ft to
approximately 13.49 ft.
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:
Based on the preliminary grading plans (Attachment A), the majority of the area where construction
of the gravel storage lot will occur will be filled. Fill soil will be obtained from excavation of the
storm water retention basin and a Brownfields‐approved off‐site source, likely the Martin Marietta –
Charlotte Quarry located at 4551 Beatties Ford Road.
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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.
This fill soil will be procured from a source pre‐approved by the Brownfields Program. Soil samples
will be collected for analysis of the parameters listed below if an alternative, non‐Brownfields‐
approved source is used for fill 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):
EPA Method 6010D and Method 7470A (mercury only)
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ PCBs: Specify Analytical Method Number(s):
EPA SW‐846 Method 8082A. A sample will also be collected for possible analysis
of PCB congeners according to EPA Method 1668A based on the results of the
8082A analysis.
☐ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent
Chromium, Herbicides, etc.):
Click or tap here to enter text.
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 will be imported from a Brownfields‐approved off‐site source, likely the Martin Marietta –
Charlotte Quarry located at 4551 Beatties Ford Road in Charlotte.
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
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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.
Soil disposal will be conducted based on the laboratory analytical results of characterization
sampling as summarized in the Brownfields Work Plan Addendum included as Attachment B. Soil
disposed off‐site will consist of the soils removed from the tree root balls excavated from within
and adjacent to the former trenches. All other soils excavated during redevelopment of the site
will be redistributed on‐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).
Click or tap here to enter
text.
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:
Click or tap here to enter
text.
☐ If no, include rationale here:
Click or tap here to enter
text.
Other comments regarding managing impacted soil in utility trenches:
Utility trenching will not occur on the Brownfields property. The new building will be supplied with
power via overhead lines. Water, sewer, and natural gas service is currently not anticipated for the new
building.
PART 2. GROUNDWATER – Please fill out the information below.
1) What is the depth to groundwater at the Brownfields Property?
Depth to groundwater ranges from approximately 14 to 29 ft
bgs.
2) Is groundwater known to be contaminated by ☐onsite ☐offsite ☒both or ☐unknown
sources? Describe source(s):
Likely a result of past operations conducted on‐
site.
3) What is the direction of groundwater flow at the Brownfields Property?
Groundwater flow across the site is towards the south and
southeast.
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).
Based on the historical depth to groundwater, groundwater is not anticipated to be encountered
during the redevelopment activities outlined in this EMP. Although not anticipated, if
groundwater suspected to be impacted (based on strong odor, unnatural color, sheen, etc.) is
encountered during site work, the contractor will contact the project environmental professional
to observe the suspect condition. If the environmental professional determines that the
excavation likely contains impacted groundwater, then appropriate worker safety measures will
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EMP Version 2, June 2018
be undertaken to manage groundwater. The accumulated water will be will be allowed to
evaporate (if feasible), tested and disposed off‐site (if impacted), 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
Approval from the IHSB for the abandonment of site‐related monitoring wells will be requested. The
Brownfields Project Manager will be notified once approval is obtained for concurrence to abandon the
site‐related monitoring wells.
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such events (e.g. flooding, contaminated surface water run‐off, stormwater impacts):
Surface water on the eastern portion of the Brownfields property has not been sampled for
laboratory analysis; therefore, surface water quality at this portion of the site is unknown. Surface
water samples will be collected from the eastern stream as summarized in the Brownfields Work
Plan Addendum included as Attachment B. Surface water samples collected on the western
portion of the site did not indicate the presence of contaminants above North Carolina Surface
Water Standards. No contact with surface water is expected. If surface water run‐off gathers in an
open excavation determined during construction to be impacted, appropriate worker safety
measures will be undertaken. The accumulated water will be allowed to evaporate; sampled for
laboratory analysis following submittal and approval of a work plan, containerized or vacuumed,
and disposed off‐site (if impacted); or used for dust control at the Site (with prior approval from the
Brownfields Program). In addition, the environmental professional will contact the DEQ
Brownfields project manager within 48 hours regarding the condition.
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):
Sediment on the eastern portion of the Brownfields property has not been sampled for laboratory
analysis; therefore, sediment quality at this portion of the site is unknown. Sediment samples will
be collected from the eastern stream as summarized in the Brownfields Work Plan Addendum
included as Attachment B. Sediment samples collected on the western portion of the site did not
indicate the presence of contaminants above North Carolina Preliminary Soil Remediation Goals. No
contact with sediments is anticipated since the streambed and existing pond are not expected to be
disturbed by the redevelopment activities.
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:
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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
of such contact:
In the event contaminated soil vapors are encountered during redevelopment activities, the
excavation 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. 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:
Click or tap here to enter
text.
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
Redevelopment of on‐site buildings (i.e., demolition, slab removals/construction/alterations) will
not be conducted with the exception of the main operational building which was damaged by fire
in November 2018. Currently, repair or replacement of the building is being determined. The
Contaminated soil vapor has been identified at a depth of approximately 20 ft
bgs.
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western portion of the main operational building will change from tire storage to commercial use.
Sub‐slab vapor samples will to be collected from the existing sub‐slab sample points (SSV‐1 and
SSV‐2); however, if vapor is unable to be collected from these points, an alternative assessment
technique will be used (i.e., installation of new sub‐slab points or outside soil gas sampling).
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
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:
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
Click or tap here to enter
text.
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EMP Version 2, June 2018
officials, as necessary and appropriate, is required when new potential source(s) of
contamination are discovered. These Notification Requirements were outlined on Page 1 of this
EMP.
Should potentially impacted materials be identified that are inconsistent with known site
impacts, the DEQ Brownfields Project Manager will be notified and a sampling plan will be
prepared based on the EMP requirements and site‐specific factors. Samples will generally be
collected to document the location of the potential impacts.
Check the following chemical analysis that are to be conducted on newly identified releases:
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi‐volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and
silver)
EPA Method 6010D and Method 7470A (mercury only)
☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.
☒ PCBs: Specify Analytical Method Number(s):
EPA SW‐846 Method 8082A. A sample will also be collected for possible analysis of PCB
congeners according to EPA Method 1668A based on the results of the 8082A analysis.
☐ 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.
Click or tap here to enter text.
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, H&H will attend a pre‐construction kick‐off meeting with
the PD and the redevelopment contractors to discuss the DEQ approved EMP and various scenarios
when it would be appropriate and necessary to notify H&H of the discovery of unknown subsurface
features or potentially impacted media at the Site. In the event that such conditions are encountered
during Site 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 that a previously unidentified underground storage tank is encountered during
redevelopment, the consultant and Brownfields Program will be notified within 48 hours. A work plan
outlining the proposed remedy and associated sampling procedures will be prepared and submitted to
the Brownfields Program for approval prior to continuing redevelopment/construction in that area.
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EMP Version 2, June 2018
If the UST contains residual fluids, the fluids will be removed, sampled for VOCs, SVOCs, and RCRA
metals, and transported off‐Site for disposal at a suitable facility based on the laboratory analytical
results. Impacted soil will be managed in accordance with Part 1.A. above.
Sub‐Grade Feature/Pit:
If a sub‐grade feature or pit is encountered and does not require removal for geotechnical purposes,
the consultant and Brownfields Program will be notified within 48 hours. Prior to initiating closure of
the sub‐grade feature, the Brownfields Program will be provided with photographs showing the
feature and the following information: 1) the footprint and location of the sub‐grade feature including
the Global Positioning System (GPS) coordinates of the feature, 2) the estimated volume of fill soil to
be used, and 3) if the base of the structure is penetrated before back filling to prevent fluid
accumulation and other actions undertaken to close the feature. If the sub‐grade feature has waste in
it, the waste will be containerized and set aside in a secure area and will be sampled for waste disposal
purposes for volatile organic compounds (VOCs), semi‐volatile organic compounds (SVOCs), and
Resource Conservation and Recovery Act (RCRA) metals using the Toxicity Characteristic Leaching
Procedure (TCLP) and total polychlorinated biphenyls (PCBs) and disposed off‐site at an appropriate
permitted facility or the waste will be managed in accordance with this EMP, whichever is most
applicable based on the type of waste present.
Buried Waste Material:
If excavation into buried wastes or significantly impacted soils occurs, the contractor is instructed to
stop work in that location and notify the environmental professional. The environmental professional
will review the materials and collect samples if warranted. In this event, confirmation sampling will be
conducted at representative locations in the base and the sidewalls of the excavation after the waste
or significantly impacted soil is removed. The confirmation samples will be analyzed for VOCs, SVOCs,
and the RCRA metals plus hexavalent chromium. Areas of suspected contaminated soil that remain at
the Site after excavation is complete above the DEQ Industrial/Commercial PSRGs will be managed
pursuant to this plan and incorporated into the 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:
If buried piping is encountered, the consultant and Brownfields Program will be notified within 48
hours. Documentation will be provided to the Brownfields Program including: photographs showing
the integrity of the piping, depth of the piping below ground surface, and exposed soils beneath and
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adjacent to the piping, and GPS coordinates of the piping location. If the piping must be removed to
allow installation to proceed, the contractor will inspect the pipe for fluids. The contractor will
containerize any fluids from the piping and the consultant will look for signs of a release using field
observation methods (i.e., odors, discoloration). The collected fluids, if any, will be sampled for VOCs,
SVOCs, RCRA metals, and total PCBs to determine appropriate disposition. In addition, if soil impact is
observed, a work plan outlining the proposed remedy and associated sampling procedures will be
prepared and submitted to the Brownfields Program for approval prior to continuing
redevelopment/construction in that area.
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 Click or tap to enter a date.
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.
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EMP Version 2, June 2018
WSW-1
WSW-2
MW-2
MW-7
MW-18
MW-16
MW-19
MW-13
REVISION NO. 0
JOB NO. BOA-003
DATE: 11-30-18
FIGURE NO. EMP-1
SITE MAPLEGEND
SITE PROPERTY BOUNDARY
APPROXIMATE STREAM LOCATION
SHALLOW MONITORING WELL
LOCATION
DEEP MONITORING WELL
LOCATION
APPROXIMATE FORMER WATER
SUPPLY WELL LOCATION
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 GeologyMELYNDA ROADPARCEL NO.
05712102
PARCEL NO.
05712302
PARCEL NO.
05712101
PARCEL NO.
05712218
FORMER CENCO INC.
BROWNFIELDS PROJECT NO. 18050-14-60
609 MELYNDA ROAD
CHARLOTTE, NORTH CAROLINA
FORMER PRODUCT STORAGE ASTs
(REMOVED)
FORMER WASTEWATER ASTs
(REMOVED)
FORMER WATER AST
(REMOVED)
FORMER FUEL OIL
ASTs (REMOVED)
FORMER BOILER BUILDING
(DEMOLISHED)
FORMER TRAILER
(DEMOLISHED)
FORMER BOILER /
STORAGE BUILDING
MAIN OPERATIONAL
BUILDING
FORMER WASTE
WATER TREATMENT BUILDING
FORMER SCALE
HOUSE BUILDING
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WSW-1
WSW-2MELYNDA ROADMW-2
MW-7
MW-18
MW-16
MW-19
MW-13
TMW-5
TMW-4
TMW-7
SB-27
SB-16
SB-32
TMW-8
SB-29SB-28
TMW-6
SB-26
TMW-9
SSV-6SSV-4
SSV-2
SSV-5
SSV-3
SSV-1
SSV-8
SSV-7
SSV-9
SB-17
SB-18
SB-19
SB-20 SB-21
SB-22
SB-25
SB-24SB-23
SGB-2
SGB-1
SGB-4
SGB-3
SB-28A SB-29A
SB-31
SB-30
BG-3
BG-2
PSED-1
SB-15
SW-3
PSED-2
SSED-3
SSED-2
SSED-1
SW-2
SW-1
REVISION NO. 0
JOB NO. BOA-002
DATE: 11-30-18
FIGURE NO. EMP-2
FORMER CENCO INC.
BROWNFIELDS PROJECT NO. 18050-14-60
609 MELYNDA ROAD
CHARLOTTE, NORTH CAROLINA
LEGEND
SITE PROPERTY BOUNDARY
APPROXIMATE STREAM LOCATION
SHALLOW MONITORING WELL
LOCATION
DEEP MONITORING WELL
LOCATION
APPROXIMATE FORMER WATER
SUPPLY WELL LOCATION
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
TEMPORARY MONITORING WELL
LOCATION
SOIL BORING/ SAMPLE LOCATION
SUB-SLAB VAPOR MONITORING
POINT LOCATION
SOIL GAS BORING LOCATION
SURFACE WATER SAMPLE
LOCATION
SEDIMENT CONTROL LOCATION
SAMPLE LOCATION MAP
NOTE:
BG = BACKGROUND SAMPLE LOCATION
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Attachment A
Cut/Fill Exhibit
REVISION NO. 0JOB NO. BOA-003DATE: 1-31-19FIGURE NO. 2MRR PHASE IICHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO.18050-14-060CUT / FILL EXHIBITLEGENDSITE PROPERTY BOUNDARYPROPOSED SOIL BORING LOCATIONPROPOSED SOIL GAS BORING LOCATONPROPOSED SEDIMENT / SURFACEWATER SAMPLE LOCATIONPROPOSED SURFACE WATER LOCATIONPROPOSED FINAL GRADE SOIL SAMPLELOCATIONPREVIOUS SOIL BORING LOCATIONPREVIOUS TEMPORARY MONITORINGWELL LOCATIONPREVIOUS SOIL GAS BORING LOCATION2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 GeologyLEGEND8'-11' OF CUT6'-8' OF CUT4'-6' OF CUT2'-4' OF CUT0'-2' OF CUT0'-1' OF FILL1'-4' OF FILL4'-6' OF FILL6'-8' OF FILL8'-10' OF FILLSGB-4SB-16TMW-9TMW-5TMW-4SB-17SGB-1TMW-7SB-18SB-19SGB-3TMW-6SB-26SB-27SB-28SB-28ASB-29SB-29ASB-20SB-21SB-22TMW-8SGB-2SB-23SB-24SB-25SB-31SB-30NOTE:SURVEY COMPLETED BY THE ISAACS GROUP.S:\AAA-Master Projects\Bank of America, N.A. (BOA)\US Trust, Bank of America Private Wealth Management\BOA-003 CENCO Brownfields Assessment\Figures\Cut Fill Exhibit-R1.dwg, 22x34L, 1/31/2019 4:29:52 PM, erichardson
Attachment B
Brownfields Work Plan Addendum
i
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Brownfields Assessment\EMP Addendum\FINAL_ EMP (February 1 2019)\Brownfields Work Plan Addendum_18050-14-060.doc
Brownfields Work Plan Addendum
Former Cenco, Inc. Site
609 Melynda Road
Charlotte, North Carolina
Brownfields Project No. 18050-14-060
H&H Job No. BOA-003
Table of Contents
Section Page No.
1.0 Introduction ............................................................................................................................ 1
2.0 Scope of Work ........................................................................................................................ 2
2.1 Geophysical Survey .............................................................................................................. 2
2.2 Stump/Root Ball Removal (Within Former Trench Area) ................................................... 3
2.3 Additional Sampling ............................................................................................................. 4
2.4 Grading Oversight ................................................................................................................ 9
3.0 Reporting .............................................................................................................................. 11
1
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Brownfields Work Plan Addendum
Former Cenco, Inc. Site
609 Melynda Road
Charlotte, North Carolina
Brownfields Project No. 18050-14-060
H&H Job No. BOA-003
1.0 Introduction
Hart & Hickman, PC (H&H) is pleased to present this work plan addendum to conduct
Brownfields activities at the former Cenco, Inc. Brownfields site (Project No. 18050-14-060)
located at 609 Melynda Road in Charlotte, Mecklenburg County, North Carolina (Site). The Site
consists of three parcels (Mecklenburg County parcel Nos. 05712101, 05712102, and 05712302)
totaling approximately 14.5 acres. An updated Site map is presented in the Environmental
Management Plan (EMP) as Figure EMP-1 and a sample location map is presented as Figure
EMP-2.
Based on our meeting conducted on September 10, 2018 (and additional electronic mail
correspondence and telephone conversations) with the North Carolina Department of
Environmental Quality (DEQ), Division of Waste Management – Brownfields Program, this
addendum addresses the following activities:
Performance of a geophysical survey in the former trench area located on the eastern side
of the Site;
Removal of tree stumps/root balls within and adjacent to the former trench locations;
Additional sampling activities; and
Grading/Site development oversight.
H&H’s scope of work associated with these activities is summarized in the following sections.
2
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2.0 Scope of Work
2.1 Geophysical Survey
H&H will contract the services of Geophysical Survey Investigations, PLLC (GSI) of
Greensboro, North Carolina (NC) to conduct a geophysical investigation in the former trench
area located on the eastern side of the Site as shown on the Cut/Fill Exhibit provided in the EMP
as Attachment A. The area is currently wooded and consists of approximately 43,000 square
feet. Prior to conducting the geophysical survey using electromagnetic (EM) metal detection and
ground penetrating radar (GPR) methods, the area will be timbered to allow access by GSI. Tree
stumps and root balls will not be removed at this time. Because the trenches may be difficult to
detect due to the potential non-conductive nature of the buried material, clayey soil, and tree
roots, several test runs across the central portion of the area will initially be conducted using a
Geonics EM31 conductivity instrument and a GSSI 3000 GPR instrument. During the test runs,
data will be viewed and evaluated in real time in the field to determine if the former trenches can
be sufficiently identified using EM, GPR, or a combination of technologies.
If the EM survey is chosen as the most appropriate technology to utilize across the former trench
area, apparent conductivity and inphase data will be simultaneously collected at approximate
three-foot increments along grid lines oriented perpendicular (north to south) to the former
trench axes and spaced approximately five to 10 feet apart. Global Positioning System (GPS)
coordinates will be collected with the EM data using a Hemisphere A101 unit with sub-meter
accuracy. The EM data will be processed into a colored contour map showing the locations of
the former trenches or former trench area. If a GPR survey is conducted across the former trench
area, the GPR data will be continuously acquired along grid lines oriented perpendicular (north
to south) to the former trench axes spaced approximately five to 10 feet apart. The data will be
processed by GSI off-site and a map showing the former trench boundaries or former trench area
footprint will be generated.
Based on the data collected, H&H will mark each former trench or the former trench area
footprint and the corners of the footprint will be surveyed with a sub-meter GPS and marked
with metal stakes and colored flagging.
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2.2 Stump/Root Ball Removal (Within Former Trench Area)
Following completion of the geophysical survey activities described above, H&H will provide
oversight during the removal of tree stumps/root balls located within and adjacent to former
trenches. Eastern Solutions, LLC (Eastern) of Charlotte, NC will conduct the removal activities
using an excavator and HAZWOPER-trained personnel. The duration of this removal activity
will be dependent on the number and sizes of the tree stumps/root balls located within and
adjacent to former trenches. The removal of tree stumps/root balls outside of the former trench
area is not covered under this protocol.
A bermed containment structure consisting of 10-millimeter thick plastic sheeting will be
constructed near the former trench area and a plastic-covered laydown area for tree stumps/root
balls will be located adjacent to the containment structure. The final locations of the
containment structure and laydown area will be determined in the field based on the geophysical
survey results and identified former trench footprint. As the tree stumps/root balls are removed
from the former trench area, H&H will observe the soils for evidence of a distinct unnatural
color, strong odor, or disposed materials (i.e., building materials, dried sludge, debris) and screen
the soils intermittently using a Photo-ionization Detector (PID). The soil will be pressure
washed from the root balls over the containment structure and the stumps/root balls will be
placed on the plastic laydown area.
Following removal of the tree stumps/root balls from the former trenches, an orange non-woven
geotextile fabric (manufactured by IWT Cargo Guard) will be placed over the former trench
footprint and secured. The demarcation fabric will be imprinted with “Danger Do Not Dig” in
both English and Spanish. In addition, a grab/composite soil sample will be collected from the
soil in the containment structure for disposal characterization. The soil sample will be submitted
to the laboratory for analysis using the Toxicity Characteristic Leaching Procedure (TCLP) EPA
SW-846 Preparation Method 1311 for volatile organic compounds (VOCs) by EPA SW-846
Method 8260B (grab), semi-volatile organic compounds (SVOCs) by EPA SW-846 Method
8270D (composite), and Resource Conservation and Recovery Act (RCRA) metals by EPA
Methods 6010D and 7470A (mercury only; composite). In addition, the soil sample will be
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analyzed for polychlorinated biphenyls (PCBs) according to EPA SW-846 Method 8082A
(composite). If free liquids remain in the containment structure, a grab water sample will be
collected for disposal characterization as well. If collected, the water sample will be analyzed
for total VOCs, SVOCs, RCRA metals, and PCBs.
Following receipt and review of the laboratory analytical results from the containment sample(s)
collected, H&H will arrange for the off-site disposal of the contained waste. The Brownfields
Program project manager will be provided with a copy of the laboratory results and the proposed
disposition of the waste material. The staged stumps/root balls will be disposed off-site or
placed on-site for use at other areas on the property with concurrence from the Brownfields
Program project manager. If placed on-site, the stumps/root balls removed from the former
trench area will not be buried on-site but used for border control or to prevent erosion in low
areas at the Site.
2.3 Additional Sampling
Prior to beginning the grading activities, H&H will collect soil, sediment, surface water, and soil
gas samples from the locations shown on the Cut/Fill Exhibit contained in Appendix A of the
EMP. The borings will be advanced using decontaminated hand auger equipment or direct push
technology (DPT) drilling equipment. Sampling procedures will be conducted in general
accordance with the most recent version of the U.S. EPA Region IV Science and Ecosystem
Support (SESD) Field Branches Quality System and Technical Procedures guidance. Soil will
be screened using a PID and the sample locations will be surveyed with a sub-meter GPS and
incorporated into the existing Site base map.
Former Trench Area (Inside of Former Trench Area
At DEQ’s request, H&H will advance two soil borings within the eastern portion of the former
trench area footprint (Attachment A). The borings will be advanced to total depths of
approximately one-foot below the ground surface (ft bgs). One grab soil sample will be
collected from each soil boring for laboratory analysis of PCBs according to EPA SW-846
Method 8082A. A soil sample will also be collected from each boring and held at the laboratory
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for possible analysis of PCB congeners according to EPA Method 1668A based on the results of
the Method 8082A analysis.
Former Trench Area Perimeter Soil Borings (Outside of Former Trench Area)
At DEQ’s request, H&H will advance 10 soil borings along the perimeter of the former trench
footprint to approximate depths of two to three ft bgs to verify the absence of soil impact. The
purpose for advancement of these soil borings is to provide a final delineation of the former
trench area footprint and not to further characterize the former trench area.
One grab soil sample will be collected from each soil boring for laboratory analysis of VOCs
according to EPA SW-846 Method 8260B. One composite soil sample will also be collected
from each boring for laboratory analysis of SVOCs by EPA SW-846 Method 8270D, RCRA
metals by EPA Methods 6010D and 7470A (mercury only), and PCBs according to EPA SW-
846 Method 8082A. A soil sample will also be collected from each boring and held at the
laboratory for possible analysis of PCB congeners according to EPA Method 1668A based on the
results of the Method 8082A analysis.
Note that during advancement of the soil borings along the perimeter of the former trench area
footprint, H&H will observe the soils for evidence of a distinct unnatural color, strong odor, or
disposed materials (i.e., building materials, dried sludge, debris) and screen the soils using a PID.
Should field screening of the perimeter soil borings indicate potential impact as a result of past
disposal practices, H&H will extend the perimeter of the former trench area footprint to
incorporate the boring location and a step out soil boring will be advanced to further define the
former trench area boundary.
Retention Basin Soil Borings
At DEQ’s request, H&H will advance nine soil borings on the eastern portion of the Site in the
vicinity of the planned storm water retention basin to approximate depths of four to eight ft bgs.
The total depth of each boring will be based on the proposed total cut depth in that specific area.
Based on field screening results (i.e., evidence of a distinct unnatural color, strong odor, or
disposed materials), one grab soil sample will be collected from each boring for laboratory
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analysis of VOCs and one composite soil sample will be collected from each boring for
laboratory analysis of SVOCs, RCRA metals, and PCBs. A soil sample will also be collected
from each boring and held at the laboratory for possible analysis of PCB congeners based on the
results of the primary PCB analysis.
New Building Footers Soil Borings
Melynda Road Realty, LLC (Prospective Developer) requires the construction of a building
along the south side of the Site to continue its operations and the continued employment of staff.
The building is expected to be constructed on slab and consist of approximately 2,700 square
feet. It is expected that two footers will be poured along the outside edges of the slab at depths
of approximately two to three ft bgs. Prior to construction of the new building, H&H will
advance two soil borings in the approximate locations of the proposed building footers to depths
of three ft bgs. Based on field screening results, one grab soil sample will be collected from each
boring for laboratory analysis of VOCs and one composite soil sample will be collected from
each boring for laboratory analysis of SVOCs, RCRA metals, and PCBs. A soil sample will also
be collected from each boring and held at the laboratory for possible analysis of PCB congeners
based on the results of the primary PCB analysis.
At DEQ’s request, H&H will also advance two soil gas borings within the approximate footprint
of the new building. Two soil gas samples will be collected from each boring at depths of
approximately five ft bgs and 20 ft bgs. The soil gas sample points will be installed utilizing
decontaminated DPT drilling equipment. A stainless-steel screen point fitted with ¼-inch
diameter Teflon® tubing will be placed within the borehole at a depth of approximately five ft
bgs and filter sand will be placed around the annular space of the sample point and extended to
approximately four feet above the bottom of the borehole. The sampling point will be completed
by placing hydrated bentonite from the top of the filter sand to the ground surface.
Prior to sample collection, and after allowing approximately 30 minutes for equilibration, each
sampling point will be purged by drawing three volumes of gas (equivalent to the sample train)
from the point, and a leak check will be performed. The leak check will be performed by
constructing a shroud around the sampling train, saturating the air within the shroud with helium
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gas, and measuring the helium concentration in the shroud using a hand-held helium gas
detector. Then, soil gas will be collected from the sampling point into a Tedlar® bag at a purge
rate not to exceed 200 milliliters per minute (ml/min) and analyzed for helium using the detector.
If the concentration of helium measured in the soil gas is less than 10% of the concentration
measured in the shroud, the leak check will be considered successful. If the concentration is
greater than 10%, sampling personnel will attempt to identify and seal the leak source(s) and
additional leak check testing will be performed at that location or the soil gas point will be
reinstalled at a nearby location and leak tested.
Following a successful leak check of the sampling train, a laboratory-supplied 6-liter Summa
canister connected to an airflow regulator will be connected to the tubing of the point using a
ferrule to form an air-tight seal. The Summa canister’s airflow regulator will be pre-set by the
laboratory to restrict air flow into the canister to approximately 200 ml/min. The canister’s
intake valve will then be opened to collect a soil gas sample over an approximately 30-minute
period. During sample collection, vacuum measured in the sample line will be periodically
observed and recorded and sample collection stopped when vacuum in the canister reaches
approximately five inches of mercury (in/Hg). The vacuum will not reach a residual pressure of
0 in/Hg and the initial and final pressures will be recorded on the laboratory chain of custody
form.
Subsequently, the air flow regulator will be removed from the Summa canister and the samples
will be submitted under standard chain of custody protocols to a laboratory for analysis of VOCs
by EPA Method TO-15. H&H will also record general outdoor weather conditions (temperature,
barometric pressure, wind speed/direction) during the soil gas sampling activities.
Following collection of the soil gas sample from the five-foot bgs interval as described above, a
soil gas boring will be advanced adjacent to the first shallow boring to a depth of approximately
20 ft bgs. Soil gas sampling from this interval will be conducted in a similar way as the shallow
sample.
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Final Grade Soil Borings
At DEQ’s request, following grading of the Site and prior to the placement of gravel, final grade
soil samples (10 total) will be collected from depths of approximately 0.5 to one-foot bgs. One
grab soil sample will be collected from each boring for laboratory analysis of VOCs and one
composite soil sample will be collected from each boring for laboratory analysis of SVOCs,
RCRA metals, and PCBs. A soil sample will also be collected from each boring and held at the
laboratory for possible analysis of PCB congeners based on the results of the primary PCB
analysis.
Sediment and Surface Water Samples
At DEQ’s request, H&H will collect two surface water samples and three sediment samples from
the stream located on the eastern side of the Site. The stream is an unnamed tributary to Paw
Creek and flows towards the south. The surface water and sediment samples will be collected
from downstream (south) to upstream (north) using decontaminated stainless-steel sampling
equipment (dipper and auger). Surface water samples will be collected from the southern and
northern stream locations for laboratory analysis of VOCs, SVOCs, RCRA metals, and PCBs.
Sediment samples will be collected from the three stream locations for laboratory analysis of
VOCs, SVOCs, RCRA metals, and PCBs. A sediment sample will also be collected from each
location and held at the laboratory for possible analysis of PCB congeners based on the results of
the primary PCB analysis.
Quality Assurance/Quality Control Samples
For Quality Assurance/Quality Control (QA/QC) purposes, one duplicate soil sample will be
collected from the former trench area perimeter borings, the retention basin soil borings, and the
final grade soil borings (three total). One duplicate soil gas sample will also be collected using
an inline T connector. Sufficient sample will be collected in the field in order to perform the
duplicate analyses from the proposed sample locations. The duplicate samples will be analyzed
for the same compounds as the parent sample.
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In addition, an equipment rinsate blank will be collected during each field day for analysis of
VOCs, SVOCs, RCRA metals, and PCBs and laboratory supplied trip blanks will placed into the
laboratory supplied coolers that are used for samples to be analyzed for VOCs and will
accompany field personnel during sample collection activities. The trip blanks will analyzed for
VOCs. Note that the laboratory will be notified in advance of the required matrix reporting
limits needed to be below screening levels or standards, as appropriate. In addition, the
laboratory will be directed to report concentrations to the laboratory method detection limits
using “J” flags where appropriate.
Soil cuttings generated during advancement of the soil borings will be containerized in labeled
55-gallon steel drums and staged on site pending the results of the laboratory analyses. The
Brownfields Program project manager will be provided with a copy of the laboratory results of
the soil samples collected as part of this assessment and the proposed disposition of the waste
material.
2.4 Grading Oversight
As depicted on the Cut/Fill Exhibit prepared by The Isaacs Group and previously submitted to
the Brownfields Program (Attachment A), the majority of the area where the former trenches are
apparently located will be filled with the soil generated from the construction of the storm water
retention basin located on the eastern-most portion of the site parcel. Additional fill soil required
for development of the site (approximately 280 cubic yards) will be obtained from a
Brownfields-approved source. The proposed storm water retention basin is not anticipated to be
located within the former trench area footprint. Areas located within the approximate former
trench area footprint that will be cut are not expected to encounter the trenches. Based on the
exhibit, the deepest cut in the area will be 1.02 feet and the tops of the former trenches are
located at depths of approximately two ft bgs.
H&H will provide limited oversight during the construction of the storm water retention basin
and other areas to be cut. H&H will observe the soils for evidence of a distinct unnatural color,
strong odor, or disposed materials (i.e., building materials, dried sludge, debris) and screen the
soils using a PID. When not providing oversight, H&H will be notified in the event apparent
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impacted soil or buried materials are encountered during cutting activities. H&H will document
the location of any apparently impacted soil or buried materials and locate the area using a sub-
meter GPS. The Brownfields Program project manager will be contacted within 48 hours to
determine the need for sampling prior to excavation. If removal is required, the soil/material will
be staged on-site and samples collected for the appropriate laboratory analyses.
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3.0 Reporting
Upon completion of the tasks described in Section 2.0, H&H will prepare a report for submittal
to the Brownfields Program. The report will include a description of field activities; a tabular
summary of the analytical results in comparison to regulatory screening levels; photographs
documenting the activities (including placement of the demarcation fabric); a figure depicting the
former trench locations or former trench footprint and sample locations; laboratory analytical
reports including chain of custody records; disposal manifests; specifications of the demarcation
fabric; and H&H’s conclusions.
Attachment C
Laboratory Analytical Results – Summary Tables
Table 3ASummary of Soil Analytical ResultsCenco Brownfields AssessmentDebris Piles AreaCharlotte, Mecklenburg County, North CarolinaBrownfields Project ID No. 18050-14-060H&H Job No. BOA-003Sample ID SB-1 SB-2 SB-3 SB-4 SB-5 SB-6 SB-7 SB-8 SB-9 SB-10 SB-11 SB-12 SB-13 SB-14 SB-15 BG-1 BG-2 BG-3Date1/10/2018 1/10/2018 1/10/2018 1/10/2018 1/10/2018 1/15/2018 1/15/2018 1/15/2018 1/15/2018 1/15/2018 1/15/2018 1/15/2018 1/15/2018 1/15/2018 1/15/2018 1/16/2018 1/16/2018 1/16/2018Depth (feet bgs)1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2-3 2-3 2-3POG PSRGResidential Health Based PSRGIndustrial/Commercial Health Based PSRGAcetone 0.119 1.42JB 1.36JB 1.11JB 0.953JB 2.650JB 2.920JB 1.120JB 2.180JB 2.300JB 2.110JB 2.640JB 2.320JB 2.430JB 1.580JB (0.852JB) 25 12,000 140,000Chloroform <0.0015 0.109J 0.130J 0.0861J 0.109J 0.111J 0.101J 0.0849J 0.123J <0.088 <0.084 <0.084 0.119J 0.0928J (0.0802J) 0.39 0.34 1.5Ethyl Alcohol <0.085 <5.4 <5.4 6.79J 9.0J <6.4 <5.3 <4.3 <6.3 <4.9 <4.7 <4.7 <6.4 <4.9 <5.1 (<4.4) 16 NE NEMethylene Chloride <0.023 0.470JB 0.472JB 0.369JB 0.374JB <0.340 <0.140 <0.120 <0.340 <0.260 0.295JB 0.308J <0.170 <0.130 <0.270 (<0.230) 0.02558 650Benzoic Acid <0.180 <0.180 <0.180 <0.180 <0.180 <0.230 <0.200 <0.180 <0.200 <0.180 <0.190 <0.210 0.279J <0.190 <0.200 (<0.180) NA NA NA 120 51,000 660,000Arsenic 2.13.3 3.4 3.3 3.11.3J 0.83J 1.4J 1.0J 0.70J 0.80J 1.1J 2.2J 1.7J 2.1J (0.95J) 1.5J 0.97J 1.2J 5.8 0.68 3Barium 75.3 57.2 65.3 53.6 55.7 105 41.1J 58 112 52.7 52 66.6 47.7 41.3J 58.1 (31.8J) 27.9J 246 93.5 580 3,100 47,000Cadmium <0.49 <0.49 <0.45 <0.44 <0.52 <0.12 <0.13 <0.13 <0.13 <0.12 <0.096 <0.12 <0.11 <0.13 <0.13 (<0.091) <0.15 <0.14 <0.11 3 14 200Chromium (total) 81.3 129 148 109 96 102 11.9 17.4 18.6 15 16 90.4 129 64.6 34.6 (16.5) 49.2 108 22.1 3.8 0.31 6.5Lead 10.0 11.9 16.1 12.2 16 7.6 6.1 9.3 5.5 7.9 8.4 8.9 11.3 12 13.4 (4.4) 5.0J 2.5J 9.7 270 400 800Mercury <0.041 <0.039 <0.046 <0.041 <0.041 0.050J 0.070 0.049 0.056 0.025J 0.012J 0.011J 0.0057J <0.0045 0.020J (0.017J) 0.15 <0.0049 0.022J 1 2.3 9.7Selenium 2.2 1.5 1.7 1.6 1.5 <0.56 <0.63 <0.62 <0.63 <0.60 <0.46 <0.58 <0.55 <0.61 <0.63 (<0.44) <0.72 <0.67 <0.54 2.1 78 1,200Silver <0.49 <0.49 <0.45 <0.44 <0.52 <0.19 <0.21 <0.21 <0.22 <0.20 <0.16 <0.20 <0.19 <0.21 <0.21 (<0.15) <0.24 <0.23 <0.18 3.4 78 1,200All NA NA NA NA NA ND ND NA NA NA NA NA NA NA NA NA NA NA NE NE NENotes:POG = Protection of GroundwaterSVOCs - Semi-Volatile Organic Compounds (SW-846 Method 8270D)RCRA = Resource Conservation and Recovery ActNA = Not analyzedNE - Not established(16.5) = Duplicate concentration< = Less than the Method Detection LimitVOCs - Volatile Organic Compounds (SW-846 Method 8260B)B = Compound detected in the laboratory method blank analysis associated with the sampleJ = Estimated value less than the Reporting LimitOnly VOCs, SVOCs, and PCBs detected in at least one sample are included in the tableBold = Exceeds the Industrial/Commercial Health-Based PSRG and site-specific background concentrations for metalsND = Not detected at or above the Reporting Limit or at an estimated concentration at or above the Method Detection LimitPCBs = Polychlorinated Biphenyls (SW-846 Method 8082A)NA NA NANCDEQ, DWM, Superfund SectionPSRG - Preliminary Soil Remediation Goal (February 2018)mg/kg - Milligrams per kilogram or parts per millionDWM - Division of Waste ManagementNCDEQ - North Carolina Department of Environmental Qualitybgs - Below ground surfacePCBs (mg/kg)RCRA Metals (mg/kg)VOCs (mg/kg)SVOCs (mg/kg)Table 3A - Soil_Debris PilesTable 1 Page 1 of 1Hart & Hickman, PC
Table 3BSummary of Soil Analytical ResultsStaining/Eastern Parcel Areas Cenco Brownfields AssessmentCharlotte, Mecklenburg County, North CarolinaBrownfields Project ID No. 18050-14-060H&H Job No. BOA-003Sample ID SB-16 SB-26 SB-27 SB-26/SB-27 SB-28 SB-29 SB-28/SB-29 SB-28A SB-29A SB-30 SB-31 SB-30/SB-31 SB-32 BG-1 BG-2 BG-3Date1/16/2018 1/16/2018 1/16/2018 1/16/2018 1/16/2018 1/16/2018 1/16/2018 4/11/2018 4/11/2018 1/16/2018 1/16/2018 1/16/2018 1/16/2018 1/16/2018 1/16/2018 1/16/2018Depth (feet bgs)2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1.5 2-3 2-3 2-3POG PSRGResidential Health Based PSRGIndustrial/Commercial Health Based PSRGAcetone <0.013 0.0211JB 0.025JB 0.255B 0.0577JB 0.239B 0.148B (0.168B) 0.503B 25 12,000 140,000p-Isopropyltoluene <0.0013 <0.0013 <0.0014 0.0052J <0.0013 0.218J 0.0174 (<0.0012) <0.0017 1.24 NE NE1,2,4-Trichlorobenzene <0.0013 <0.0013 <0.0014 <0.0018 0.0072 <0.0015 <0.0013 (<0.0012) <0.0017 4.1 12 55Trichloroethene <0.0013 <0.0013 <0.0014 <0.0018 0.0029J <0.0015 <0.0013 (<0.0012) <0.0017 0.021 0.87 42-Butanone <0.0097 <0.0091 <0.0010 <0.013 <0.0096 <0.011 <0.0095 (<0.0084) 0.0202J 17 5,500 40,000Ethyl Alcohol <0.100 <0.094 <0.110 <0.130 <0.099 <0.110 <0.098 (<0.086) 0.149J 16 NE NEToluene <0.0013 <0.0013 <0.0014 <0.0018 <0.0013 0.0267 0.0022J (<0.0012) <0.0017 8.3 990 9,700Phenol <0.023 <0.021 <1.100.0553J (<0.020) <0.021 0.34 3,800 49,000bis(2-ethylhexyl) Phthalate <0.046 <0.043 <2.10 0.0574J (0.0792J) <0.042 14 39 160Arsenic 1.0J 2.2J 0.52J1.7J (0.86J) 0.80J 1.5J 0.97J 1.2J 5.8 0.68 3Barium 45.9J 12.7J 18.2J41.4J (27.4J) 77.8 27.9J 246 93.5 580 3,100 47,000Cadmium <0.11 <0.16 <0.12<0.16 (<0.099) <0.14 <0.15 <0.14 <0.11 3 14 200Chromium (total) 21.5 40.4 60.554.7 (30.2) 72.6 49 108 22.1 3.8 0.31 6.5Lead 13.4 8.4 1.5J8.6 (6.4) 6.5 5.0J 2.5J 9.7 270 400 800Mercury <0.0057 0.052 0.017J0.029J (0.020J) 0.044J 0.15 <0.0049 0.022J 1 2.3 9.7Selenium <0.55 <0.77 <0.60<0.75 (<0.47) <0.66 <0.72 <0.67 <0.54 2.1 78 1,200Silver <0.19 <0.26 <0.20<0.26 (<0.16) <0.23 <0.24 <0.23 <0.18 3.4 78 1,200Aroclor 1254 NA NA NA <0.0085 NA NA4.58NA NA NA NA <0.0088 NA NA NA NA 0.091 0.23 0.97PCB 770.000345 0.01540.0084 0.038 0.16PCB 81<0.0000073 <0.0001560.0028 0.012 0.048PCB 1050.005010.4950.047 0.12 0.49PCB 1140.00016 0.02280.047 0.12 0.51PCB 1180.01231.070.046 0.12 0.49PCB 1230.000287 0.02030.47 0.12 0.50PCB 1260.00009410.002570.000014 0.000036 0.00015PCB 156/1570.0021 0.1640.077 0.12 0.51PCB 1670.00066 0.04590.075 0.12 0.51PCB 169<0.0000036 <0.00005650.000075 0.00012 0.00051PCB 1890.0000483 0.003530.13 0.13 0.52PCBs (high risk)0.18689214.3544140.055 0.23 0.95Notes:POG = Protection of GroundwaterSVOCs - Semi-Volatile Organic Compounds (SW-846 Method 8270D)RCRA = Resource Conservation and Recovery ActNA = Not analyzedNE - Not established(30.2) = Duplicate concentration< = Less than the Method Detection LimitNA NANA NANA NA NA NA NANA NA NA NANA NA NANA NANA NANA NA NANA NA NA NA NANANA NANANA NANA NAPCB Congeners analyzed by EPA Method 1668APCB Congeners ( mg/kg)VOCs - Volatile Organic Compounds (SW-846 Method 8260B)B = Compound detected in the laboratory method blank analysis associated with the sampleJ = Estimated value less than the Reporting LimitOnly VOCs, SVOCs, and PCBs detected in at least one sample are included in the tableND = Not detected at or above the Reporting Limit or at an estimated concentration at or above the Method Detection LimitBold = Exceeds the Industrial/Commercial Health-Based PSRG and site-specific concentrations for metalsPCBs = Polychlorinated Biphenyls (SW-846 Method 8082A)NA NA NA NA NANCDEQ, DWM, Superfund SectionPSRG - Preliminary Soil Remediation Goal (February 2018)mg/kg - Milligrams per kilogram or parts per millionDWM - Division of Waste ManagementNCDEQ - North Carolina Department of Environmental Qualitybgs - Below ground surfacePCBs (mg/kg)RCRA Metals (mg/kg)VOCs (mg/kg)SVOCs (mg/kg)Table 3B - Soil_Staining & Eastern Parcel AreasTable 1 Page 1 of 1Hart & Hickman, PC
Table 3CSummary of Soil Analytical ResultsFormer Rail Spur AreaCenco Brownfields AssessmentCharlotte, Mecklenburg County, North CarolinaBrownfields Project ID No. 18050-14-060H&H Job No. BOA-003Sample ID SB-17 SB-18 SB-19 SB-17/18/19 SB-20 SB-21 SB-22 SB-20/21/22 SB-23 SB-24 SB-25 SB-23/24/25 BG-1 BG-2 BG-3Date2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 1/16/2018 1/16/2018 1/16/2018Depth (feet bgs)2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3POG PSRGResidential Health Based PSRGIndustrial/Commercial Health Based PSRGAcetone 0.684JB <0.940 <0.780 <0.660 <0.790 <0.690 <0.930 <0.730 <0.780 25 12,000 140,000Ethyl Alcohol 6.630JB 8.250JB 8.540JB 6.220JB 7.390JB 6.560JB 9.450JB 7.830JB <5.900 16 NE NEMethylene Chloride 0.439JB 0.621JB 0.531JB 0.350JB 0.396JB 0.396JB 0.467JB 0.437JB 0.442JB 0.025 58 650bis(2-Ethylhexl) phthalate NA NA NA <0.041 NA NA NA 0.144J NA NA NA <0.042 NA NA NA 14 39 160Arsenic0.89J 0.90J 2.5 1.5J 0.97J 1.2J 5.8 0.68 3Barium32.6J 66 81.6 27.9J 246 94 580 3,100 47,000Cadmium <0.11 <0.14 <0.11 <0.15 <0.14 <0.11 3 14 200Chromium (total) 17.5 5.1 13.1 49 108 22 3.8 0.31 6.5Lead9.3 8.5 7.5 5.0J 2.5J 9.7 270 400 800Mercury 0.018J 0.010J 0.013J 0.15 <0.0049 0.022J 1 2.3 9.7Selenium <0.54 <0.66 <0.51 <0.72 <0.67 <0.54 2.1 78 1,200Silver<0.18 <0.23 <0.17 <0.24 <0.23 <0.18 3.4 78 1,200Notes:POG = Protection of GroundwaterSVOCs - Semi-Volatile Organic Compounds (SW-846 Method 8270D)RCRA = Resource Conservation and Recovery ActNA = Not analyzedNE - Not establishedVOCs - Volatile Organic Compounds (SW-846 Method 8260B)B = Compound detected in the laboratory method blank analysis associated with the sampleJ = Estimated value less than the Reporting LimitOnly VOCs and SVOCs detected in at least one sample are included in the table< = Less than the Method Detection LimitNCDEQ, DWM, Superfund SectionPSRG - Preliminary Soil Remediation Goal (February 2018)mg/kg - Milligrams per kilogram or parts per millionDWM - Division of Waste ManagementNCDEQ - North Carolina Department of Environmental Qualitybgs - Below ground surfaceRCRA Metals (mg/kg)VOCs (mg/kg)SVOCs (mg/kg)NA NA NA NA NA NANA NA NA NA NA NA NA NA NATable 3C - Soil_Former Rail Spur AreaTable 1 Page 1 of 1Hart & Hickman, PC
Table 3DSummary of Soil Analytical ResultsTemporary Monitoring WellsCenco Brownfields AssessmentCharlotte, Mecklenburg County, North CarolinaBrownfields Project ID No. 18050-14-060H&H Job No. BOA-003Sample ID TW-1 TW-2 TW-3 TW-4 TW-6 TW-7 TW-8 BG-1 BG-2 BG-3Date2/8/2018 2/8/2018 2/8/2018 2/6/2018 2/7/2018 2/7/2018 2/7/2018 1/16/2018 1/16/2018 1/16/2018Depth (feet bgs)1-2 1-2 1.2 1-2 1-2 4-5 1-2 1-2 1-2 1-2 4-5 2-3 2-3 2-3POG PSRGResidential Health Based PSRGIndustrial/Commercial Health Based PSRGMethylene Chloride 0.528JB 0.623JB 0.467JB 0.563JB 0.868JB 0.506JB 0.500JB 0.627JB (0.725JB) 0.799JB 0.744JB 0.652JB NA NA NA 0.025 58 6502-Methylnaphthalene <0.023 0.023J <0.019 <0.022 <0.022 <0.020 <0.019 <0.023 (<0.023) <0.023 <0.020 <0.020 3.1 48 600Naphthalene <0.023 0.0371J <0.019 <0.022 <0.022 <0.020 <0.019 <0.023 (<0.023) <0.023 <0.020 <0.020 0.39 4.1 18bis(2-Ethylhexyl) phthalate <0.045 <0.042 <0.039 <0.045 <0.043 <0.041 <0.039 <0.046 (<0.045) 5.68 0.123J <0.041 14 39 160Arsenic 2.5J 1.3J 0.89J 2.9 1.5J 2.5J (2.5J) 1.2J 1.5J 0.97J 1.2J 5.8 0.68 3Barium 57.3J 57.4 39.8J 29.3J 132 50.5J (33.9J) 102 27.9J 246 94 580 3,100 47,000Cadmium <0.16 <0.13 <0.12 <0.13 <0.097 <0.16 (<0.15) <0.12 <0.15 <0.14 <0.11 3 14 200Chromium (total) 18.1 181 15.5 28.9 3.4 12.7 (12.8) 87.3 49 108 22 3.8 0.31 6.5Lead 7.5 5.4 4.8J 8.5 9.0 13.7 (8.1) 4.2J 5.0J 2.5J 9.7 270 400 800Mercury 0.037J <0.0051 0.013J 0.051J <0.0047 0.031J (0.021J) 0.0058J 0.15 <0.0049 0.022J 1 2.3 9.7Selenium <0.75 <0.65 <0.58 <0.64 1.2J <0.77 (<0.73) <0.57 <0.72 <0.67 <0.54 2.1 78 1,200Silver <0.25 <0.22 <0.20 <0.22 <0.16 <0.26 (<0.25) <0.19 <0.24 <0.23 <0.18 3.4 78 1,200Notes:POG = Protection of GroundwaterSVOCs - Semi-Volatile Organic Compounds (SW-846 Method 8270D)RCRA = Resource Conservation and Recovery ActNE - Not established(2.5J) = Duplicate concentration< = Less than the Method Detection LimitRCRA Metals (mg/kg)VOCs (mg/kg)SVOCs (mg/kg)TW-52/6/2018TW-92/6/2018NCDEQ, DWM, Superfund SectionNA NA NAPSRG - Preliminary Soil Remediation Goal (February 2018)mg/kg - Milligrams per kilogram or parts per millionDWM - Division of Waste ManagementNCDEQ - North Carolina Department of Environmental Qualitybgs - Below ground surfaceVOCs - Volatile Organic Compounds (SW-846 Method 8260B)B = Compound detected in the laboratory method blank analysis associated with the sampleJ = Estimated value less than the Reporting LimitOnly VOCs and SVOCs detected in at least one sample are included in the tableNA = Not analyzedNA NA NA NATable 3D - Soil_TWsTable 1 Page 1 of 1Hart & Hickman, PC
Table 4
Summary of Sediment Analytical Results
Cenco Brownfields Assessment
Charlotte, Mecklenburg County, North Carolina
Brownfields Project ID No. 18050-14-060
H&H Job No. BOA-003
Sample ID SSED-1 SSED-2 SSED-3 PSED-1 PSED-2
Date 1/24/2018 1/24/2018 1/24/2018 1/24/2018 1/24/2018
POG PSRG
Residential
Health
Based PSRG
Industrial/Commercial
Health Based PSRG
Acetone 3.420JB 2.050JB 2.360JB 5.970JB 2.120JB 25 12,000 140,000
Chloroform 0.231JB <0.079 0.139JB <0.280 <0.089 0.39 0.34 1.5
Ethyl Alcohol 13.700J 6.100J 8.570J <16.0 7.400J 16 NE NE
Methylene Chloride 1.240J 0.439J 0.611J 1.780J 0.486J 0.025 58 650
Benzoic Acid 0.583J <0.210 <0.240 <0.390 <0.210 120 51,000 660,000
Benzo(b)fluoranthene <0.032 <0.023 <0.026 0.0459J <0.023 1.2 1.1 21
Chrysene <0.030 <0.021 <0.024 0.0469J <0.022 36 110 2,100
bis(2-thylhexyl) phthalate <0.059 <0.041 <0.048 0.277J <0.043 14 39 160
Fluoranthene <0.029 <0.021 <0.024 0.0568J <0.021 670 480 6,000
Pyrene <0.034 <0.024 <0.027 0.0606J <0.025 440 360 4,500
Arsenic 1.3J <0.41 2.7J 2.1J 0.77J 5.8 0.68 3
Barium 119.0 136.0 94.0 132.0 65.6 580 3,100 47,000
Cadmium <0.21 <0.10 <0.16 <0.26 <0.11 3 14 200
Chromium (total) 22.8 88.2 97.5 40.8 16.2 3.8 0.31 6.5
Lead 12.5 <0.21 11.9 16.6 6.5 270 400 800
Mercury 0.042J 0.0086J 0.037J 0.11 0.027J 1 2.3 9.7
Selenium <1.0 <0.50 <0.75 <1.3 <0.54 2.1 78 1,200
Silver <0.35 <0.17 <0.26 <0.43 <0.18 3.4 78 1,200
Arochlor 1254 NS NS NS 0.0183J <0.0085 0.091 0.23 0.97
Notes:
SVOCs - Semi-Volatile Organic Compounds (SW-846 Method 8270D)
RCRA = Resource Conservation and Recovery Act
NE - Not established
NS = Not sampled for that parameter
< = Less than the Method Detection Limit
VOCs - Volatile Organic Compounds (SW-846 Method 8260B)
B = Compound detected in the laboratory method blank analysis associated with the sample
J = Estimated value less than the Reporting Limit
Only VOCs, SVOCs, and PCBs detected in at least one sample are included in the table
PCBs = Polychlorinated Biphenyls (SW-846 Method 8082A)
NCDEQ, DWM, Superfund Section
PSRG - Preliminary Soil Remediation Goal (February 2018)
mg/kg - Milligrams per kilogram or parts per million
DWM - Division of Waste Management
NCDEQ - North Carolina Department of Environmental Quality
PCBs (mg/kg)
RCRA Metals (mg/kg)
VOCs (mg/kg)
SVOCs (mg/kg)
POG = Protection of Groundwater
SSED = Stream sediment; PSED = Pond sediment
Table 4 - Sediment
Table 1 Page 1 of 1
Hart & Hickman, PC
Table 5
Summary of Surface Water Analytical Results
Cenco Brownfields Assessment
Charlotte, Mecklenburg County, North Carolina
Brownfields Project ID No. 18050-14-060
H&H Job No. BOA-003
Sample ID SW-1 SW-2 SW-3
Date 1/24/2018 1/24/2018 1/24/2018 Human Health Freshwater Aquatic Life
All ND ND ND NA NA
All ND ND ND NA NA
Arsenic <1.3 <1.3 <1.3 10 150
Barium 44.5J 43.1J 37J 200,000 NE
Cadmium <0.20 <0.20 <0.20 NE 0.15
Chromium (total) 1.2J 1.4J 1.2J NE NE
Lead <1.1 <1.1 <1.1 NE 0.54
Mercury <0.03 <0.03 <0.03 NE 0.012
Selenium <2.9 <2.9 <2.9 NE 5
Silver <0.70 <0.70 <0.70 NE 0.06
Notes:
RCRA = Resource Conservation and Recovery Act
NA = Not applicable
NE - Not established
< = Less than the Method Detection Limit
VOCs - Volatile Organic Compounds (SW-846 Method 8260B)
J = Estimated value less than the Reporting Limit
SVOCs - Semi-Volatile Organic Compounds (SW-846 Method 8270D)
ND = Not detected at or above the Method Detection Limit
NCDEQ, DWQ Surface Water Standard
(g/L)
g/L - Micrograms per liter or parts per billion
DWQ - Division of Water Quality
NCDEQ - North Carolina Department of Environmental Quality
RCRA Metals (g/L)
VOCs (g/L)
SVOCs (g/L)
Table 5 - Surface Water
Table 1 Page 1 of 1
Hart & Hickman, PC
Table 6Summary of Groundwater Analytical ResultsCenco Brownfields AssessmentCharlotte, Mecklenburg County, North CarolinaBrownfields Project ID No. 18050-14-060H&H Job No. BOA-003Sample IDTW-1 TW-2 TW-3 (DUP-6) TW-4 TW-5 TW-6 TW-7 (DUP-7) TW-8 TW-9 MW-7 MW-13 MW-19Date Collected02/19/18 02/14/18 02/13/18 02/14/18 02/13/18 02/14/18 02/13/18 02/13/18 02/13/18 02/14/18 02/13/18 02/14/18Unitsg/Lg/Lg/Lg/Lg/Lg/Lg/Lg/Lg/Lg/Lg/Lg/Lg/LAcetone<10 <10 <10 (<10) <10 <10 <10 <10 (<10) <10 58.3 <10 <20 <10 6,000Benzene<0.31 <0.31 <0.31 (<0.31) <0.31 <0.31 <0.31 <0.31 (<0.31) <0.31 0.31J2.5<0.62 <0.31 11,3-Dichlorobenzene<0.22 <0.22 <0.22 (<0.22) <0.22 0.25J <0.22 0.26J (0.31J) 0.23J 0.32J 0.99J <0.43 <0.22 2001,4-Dichlorobenzene<0.26 <0.26 <0.26 (<0.26) <0.26 <0.26 <0.26 <0.26 (<0.26) <0.26 <0.26 2.0 0.64J <0.26 6o-Chlorotoluene<0.22 <0.22 <0.22 (<0.22) <0.22 <0.22 <0.22 <0.22 (<0.22) 1.1 <0.22 <0.22 <0.44 <0.22 100Di-Isopropyl Ether<0.24 <0.24 <0.24 (<0.24) <0.24 <0.24 <0.24 0.40J (0.44J) <0.24 <0.24 <0.24 <0.48 <0.24 70Methyl Chloride<0.50 <0.50 <0.50 (<0.50) <0.50 0.73J <0.50 <0.50 (<0.50) <0.50 2.1 <0.50 <1.03753Methyl Tertiaty Butyl Ether<0.23 <0.23 <0.23 (<0.23) 0.46J <0.23 <0.23 <0.23 (<0.23) <0.23 <0.23 <0.23 <0.46 <0.23 20Tetrachloroethene<0.22 <0.22 <0.22 (<0.22) <0.222.40.50J29.5 (35.7) 0.79J 7.2<0.22 <0.43 <0.22 0.7Trichloroethene<0.35 <0.35 <0.35 (<0.35) 2.17.0 7.1 27.6 (30.5) 48.2 10.8<0.35 <0.69 <0.35 31,1-Dichloroethane<0.34 <0.34 <0.34 (<0.34) <0.34 <0.34 <0.34 <0.34 (<0.34) <0.34 <0.34 <0.34 0.74J 4.0 61,1-Dichloroethene<0.32 <0.32 <0.32 (<0.32) <0.32 <0.32 <0.32 <0.32 (<0.32) <0.32 <0.32 <0.32 1.0J 0.49J 350cis-1,2-Dichloroethene<0.28 <0.28 <0.28 (<0.28) <0.28 <0.28 <0.28 <0.28 (<0.28) <0.28 <0.28 3.23038.8 70trans-1,2-Dichloroethene<0.22 <0.22 <0.22 (<0.22) <0.22 <0.22 <0.22 <0.22 (<0.22) <0.22 <0.22 <0.22 18.7 <0.22 100Toluene<0.30 <0.30 <0.30 (<0.30) <0.30 <0.30 <0.30 <0.30 (<0.30) <0.30 0.42J <0.30 <0.60 <0.30 600Chlorobenzene<0.20 <0.20 <0.20 (<0.20) <0.20 <0.20 <0.20 <0.20 (<0.20) <0.20 <0.20 29.8 5.8 <0.20 50Vinyl Chloride<0.41 <0.41 <0.41 (<0.41) <0.41 <0.41 <0.41 <0.41 (<0.41) <0.41 <0.411.0 51.1<0.41 0.031,3-Dichlorobenzene <0.50 <0.71 <0.56 (<0.56) <0.63 <0.57 <0.50 <0.57 (<0.50) <0.56 <0.56 0.74J <0.57 <0.49 2001,4-Dichlorobenzene<0.50 <0.71 <0.56 (<0.56) <0.63 <0.57 <0.50 <0.57 (<0.50) <0.56 <0.56 2.1J <0.57 <0.49 6Naphthalene<0.50 <0.71 <0.56 (<0.56) <0.63 <0.57 <0.50 <0.57 (<0.50) <0.56 <0.56 1.1J <0.57 <0.49 6Di-n-butyl Phthalate<1.0 <1.4 <1.1 (<1.1) <1.3 <1.1 <1.0 <1.1 (<1.0) 2.7J <1.1 <1.0 <1.1 <0.97 700Arsenic<1.3 <1.3 <1.3 (<1.3) <1.3 <1.3 <1.3 <1.3 (<1.3) <1.3 <1.3 <1.3 <1.3 <1.3 10Barium57.8J 49.8J 63.6J (62.4J) 201 51.6J 67.7J 143J (141J) 84.6J 47.9J 117J 96.0J 55.4J 700Cadmium<0.20 <0.20 <0.20 (<0.20) <0.20 <0.20 <0.20 <0.20 (<0.20) <0.20 <0.20 <0.20 <0.20 <0.20 2Chromium (total)1.1J 2.0J <1.0 (<1.0) 1.2J <1.0 <1.0 <1.0 (<1.0) <1.0 <1.0 <1.0 <1.0 1.0J 10Lead<1.1 <1.1 1.3J (<1.1) <1.1 <1.1 <1.1 1.3J (<1.1) <1.1 <1.1 <1.1 1.4J <1.1 15Mercury<0.030 0.030J <0.030 (<0.030) <0.030 <0.030 0.030J <0.030 (<0.030) <0.030 <0.030 <0.030 <0.030 0.049J 1Selenium<2.9 <2.9 <2.9 (<2.9) <2.9 <2.9 <2.9 <2.9 (<2.9) <2.9 <2.9 <2.9 <2.9 <2.9 20Silver<0.70 <0.70 <0.70 (<0.70) <0.70 <0.70 <0.70 <0.70 (<0.70) <0.70 <0.70 <0.70 <0.70 <0.70 20Notes:(35.7) = Duplicate concentrationBold - Exceeds the 2L StandardNA - Not applicableNE - Not establishedNCDENR 2L Standard - North Carolina Groundwater Quality StandardVOCs - Volatile Organic Compounds (EPA Method 6200)RCRA = Resource Conservation and Recovery ActSVOCs - Semi-volatile Organic Compounds (SW-846 Method 8270D)VOCsSVOCsRCRA MetalsNCDEQ 2L StandardNCDEQ - North Carolina Department of Environmental Qualityg/L - Micrograms per liter or parts per billionS:\AAA-Master Projects\Bank of America, N.A. (BOA)\US Trust, Bank of America Private Wealth Management\BOA-003 CENCO Brownfields Assessment\Report\Tables\Table 6 - Groundwater5/31/2018Page 1 of 1Hart & Hickman, PC
Table 7 Summary of Sub-Slab Vapor Analytical Data Cenco Brownfields Assessment Charlotte, North CarolinaBrownfields Project ID No. 18050-14-060 H&H Job No. BOA-003Sample Date: 1/30/2018 5/2/2018 1/30/2018 5/2/2018 1/30/2018 1/30/2018 1/30/2018 1/30/2018 1/30/2018 5/2/2018 1/30/2018 1/30/2018Units: µg/m3 µg/m3 µg/m3 µg/m3 µg/m3 µg/m3 µg/m3 µg/m3 µg/m3 µg/m3 µg/m3 µg/m3VOCs (EPA Method TO-15)Acetone 227 193 72.5 80.5 3,140 229 130 24 16 13 20< 2.92,700,000Benzene< 3.8 < 9.9 < 9.9 < 0.3214< 0.32 < 1.4 <1.6 < 0.32 < 0.32 < 0.32 < 1.61,600Carbon disulfide 117< 12 < 125.9 318 28 23<2.1 < 0.40 < 0.40 < 0.409.3 J61,000Chloroform< 6.8 < 19 < 1944< 0.59825< 2.726 3.1 J 5.4< 0.5927530Cyclohexane< 5.5 < 15 < 153.4 59.2 1.5 J< 2.1 <2.4 < 0.48 < 0.48 < 0.4860.2530,0001,1-Dichloroethylene< 5.9152 101< 0.52 < 0.52 < 0.52 < 2.3 <2.6 < 0.52 < 0.52 < 0.52 < 2.618,000Dichlorodifluoromethane< 5.4 < 15 < 152.4 J 2.2 J 2.4 J< 2.2 <2.52.2 J 2.7 J 2.5 J< 2.58,800trans-1,2-Dichloroethylene 27 J 54.7 J< 12 < 0.4038< 0.40 < 1.8 <2.0 < 0.40 < 0.40 < 0.40 < 2.0NEcis-1,2-Dichloroethylene 40.4 5,270 3,570 2.1 J 40< 0.52 < 2.3 <2.77.9 9.1< 0.52 < 2.7NEm-Dichlorobenzene< 7.8 < 22 < 22 < 0.723.6 J< 0.72 < 3.1 <3.5 < 0.72 < 0.72 < 0.72 < 3.5NEEthanol 607 290< 2324.5 347 54.3 77.1 26.8 13 13 15 64.4NEEthylbenzene< 4.3 < 12 < 12 < 0.401.9 J< 0.40 < 1.7 <2.0 < 0.40 < 0.40 < 0.4011 J4,900Ethyl Acetate< 10 < 29 < 29427< 0.94 < 4.0 <4.7 < 0.94 < 0.94 < 0.94 < 4.76,100Heptane< 8.6 < 23 < 232.2 J 50 4.5< 3.3 <3.848.8 45.1< 0.7416135,000Hexane 58.2< 11 < 11 < 0.39129 7.4< 1.6 <1.939.8 37.4< 0.3947.261,0002-Hexanone< 7.4 < 20 < 20 < 0.654.5< 0.65 < 2.9 <3.4 < 0.65 < 0.65 < 0.65 < 3.42,600Isopropyl Alcohol 43< 27 < 273.4 109 11 12<4.4 < 0.882.9 1.5 J 1118,000Methylene chloride< 5.2 < 14 < 14 < 0.454.5< 0.45 < 2.0 <2.3 < 0.45 < 0.45 < 0.45 < 2.353,000Methyl ethyl ketone< 5.6 < 16 < 1611 327 20< 2.2 <2.51.4 J< 0.502.9< 2.5440,000Methyl Isobutyl Ketone< 11 < 29 < 29 < 0.9417< 0.94 < 4.1 <4.5 < 0.94 < 0.94 < 0.94 < 4.5260,000Propylene 2,280 378 242< 0.401,350< 0.406.2 J<2.12.6 J< 0.40 < 0.4036.6260,0001,2,4-Trimethylbenzene< 11 < 31 < 312.3 J< 0.982.3 J< 4.4 <4.9 < 0.98 < 0.98 < 0.98 < 4.95,3001,3,5-Trimethylbenzene< 6.9 < 18 < 18 < 0.59 < 0.59 < 0.59 < 2.6 <2.9 < 0.59 < 0.59 < 0.59 < 2.95,3002,2,4-Trimethylpentane< 5.6 < 15 < 1516 30< 0.51 < 2.1 <2.523 8.9 13 10,700NETertiary Butyl Alcohol 16 J< 9.7 < 9.76.4 77.6 28 8.8 J<1.6 < 0.33 < 0.33 < 0.33 < 1.6NETetrachloroethylene 114< 14237 553 15 7534,350 6,34086.8 11 84.1< 2.23,500Toluene< 4.9 < 13 < 1315 64.8 20 13 J<2.1 < 0.41 < 0.41 < 0.417.2 J440,000Trichloroethylene 17< 8.1 < 8.126 4.9 20 6.4<1.317 3.4 7< 1.3180Vinyl chloride 25312,000 9,280< 0.38792< 0.38 < 1.7 <1.9 < 0.386< 0.38 < 1.92,800m,p-Xylene< 13 < 36 < 363.1 J 6.9 2.6 J< 5.2 <5.6 < 1.2 < 1.2 < 1.2208,800o-Xylene< 6.9 < 19 < 19 < 0.612.2 J< 0.61 < 2.6 <3.0 < 0.61 < 0.61 < 0.61 < 3.08,800Xylenes total< 6.9 < 19 < 193.1 J 9.1 2.6 J< 2.6 <3.0 < 0.61 < 0.61 < 0.61208,800Non-Residential NC DEQ Risk Calculator(2) (Carcin9.9E-07 4.3E-05 3.3E-05 1.0E-06 3.0E-06 1.6E-05 9.4E-07 1.8E-06 1.3E-07 1.4E-07 4.1E-08 5.3E-07 --Non-Residential NC DEQ Risk Calculator (Hazard Q3.5E-02 2.8E-01 2.3E-01 6.3E-02 3.2E-02 8.6E-02 2.6E-01 3.6E-01 2.5E-02 5.2E-03 1.3E-02 3.3E-03 --Risk Exceeded? NO NO NO NO NO NO NO NO NO NO NO NO --Notes:VOCs = Volatile Organic CompoundsNC DEQ = North Carolina Department of Environmental QualityVISL = Vapor Intrusion Screening LevelNE = Not Established; μg/m3 = micrograms per cubic meterNA = Not Applicable; NS = Sample unable to be collectedJ = detected above method detection limit but below laboratory reporting limit resulting in an estimated value(1) VISL - NC DEQ IHSB Non-Residential Vapor Intrusion Screening Level, February 2018 (10E-5 Carcinogenic risk, 0.2 Hazard Index)(2) NC DEQ (February 2018) Non-Residential Soil Gas to Indoor Air Vapor Intrusion Risk CalculatorValues in BOLD exceed NC DEQ Non-Residential Soil Gas to Indoor Air Vapor Intrusion Screening Levelµg/m3NA NANS NS1/30/2018SSV-9SSV-4 SSV-5 SSV-7DUP-4 (SSV-7)SSV-8SSV-2SSV-6Sample ID: DUP-3 (SSV-2)SSV-3SSV-1NC DEQ Non-Residential VISL(1)S:\AAA-Master Projects\Bank of America, N.A. (BOA)\US Trust, Bank of America Private Wealth Management\BOA-003 CENCO Brownfields Assessment\Report\Tables\Table 7 - Sub-slab VaporTable 1 (1 of 1)Hart Hickman, PC
Table 8 Summary of Soil Vapor Analytical Data Cenco Brownfields Assessment Charlotte, North CarolinaBrownfields Project ID No. 18050-14-060 H&H Job No. BOA-003Sample Date: 5/2/2018 5/2/2018 5/2/2018 5/2/2018 5/2/2018Units: µg/m3 µg/m3 µg/m3 µg/m3 µg/m3VOCs (EPA Method TO-15)Acetone<2.9 <5.921 142,700,000Carbon Disulfide<2.1 <4.03.7J<0.4061,000Chloroform 11J 35J 21 96.7530Carbon Tetrachloride<2.5 <5.023 82.42,000Cyclohexane<2.4 <4.85.2J<0.48530,0001,1-Dichloroethane<2.6 <5.38.1<0.537,7001,1-Dichloroethene<2.6 <5.24.8J<0.5218,000Dichlorodifluoromenthane<2.5 <4.9 <1.23.2J8800m-Dichlorobenzene 17J<7.2 <1.726NEEthanol <3.6<7.2 <1.817NEHexane<1.9 <3.96.0J<0.3961,0002-Hexanone<3.4 <6.5 <1.73.92,600Methylene Chloride<2.3 <4.5 <1.13.253,000Methyl ethyl ketone<2.5 <5.0 <1.35.0440,000Propylene<2.1 <4.04.0J<0.40260,000Styrene 41 37<2.0 <0.7788,0001,1,1-Trichloroethane<1.9 <3.786.2<0.37440,000Tertiary Butyl Alcohol<1.6 <3.3 <0.791.5JNETetrachloroethene7,050 10,800 4,250<0.453,500Trichloroethene 5.9 18 20 1.9180Non-Residential NC DEQ Risk Calculator(2)(Carcin1.5E-06 3.0E-06 1.5E-06 2.2E-06 --Non-Residential NC DEQ Risk Calculator (Hazard Q4.1E-01 6.1E-01 2.1E-01 6.7E-03 --Risk Exceeded? NO NO NO NO --Notes:VOCs = volatile organic compoundsNC DEQ = North Carolina Department of Environmental QualityVISL = vapor intrusion screening levelNE = Not Established; μg/m3 = micrograms per cubic meterNA = Not Applicable; NS = Sample unable to be collectedJ = detected above method detection limit but below laboratory reporting limit resulting in an estimated value(2) NC DEQ (February 2018) Non-Residential Soil Gas to Indoor Air Vapor Intrusion Risk CalculatorValues in BOLD exceed NC DEQ Non-Residential Soil Gas to Indoor Air Vapor Intrusion Screening LevelSGB-2Sample ID: SGB-3 SGB-4SGB-1DUP-9 (SGB-1)NANS(1) VISL - NC DEQ IHSB Non-Residential Vapor Intrusion Screening Level, February 2018 (10E-5 Carcinogenic risk, 0.2 Hazard Index)NC DEQ Non-Residential VISL(1)S:\AAA-Master Projects\Bank of America, N.A. (BOA)\US Trust, Bank of America Private Wealth Management\BOA-003 CENCO Brownfields Assessment\Report\Tables\Table 8 - Soil VaporTable 1 (1 of 1)Hart Hickman, PC