23058-Durable Wood EMP-Rev1

#C-1269 Engineering
#C-245 Geology
Environmental Management Plan
Durable Wood
7901 Pence Road
Charlotte, North Carolina
Brownfields Project No. 23058-19-060
H&H Job No. MEC-003
August 5, 2022
CONTENTS
Completed EMP Template Form
Tables
Table 1 Summary of Soil Analytical Data
Table 2 Summary of Groundwater Analytical Data
Table 3 Summary of Soil Gas Analytical Data
Figures
Figure 1 Site Location Map
Figure 2 Soil Sample Location Map
Figure 3 Proposed In-Situ Soil Sample Location Map
Figure 4 Groundwater Sample Location Map
Figure 5 Soil Gas Sample Location Map

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NORTH CAROLINA BROWNFIELDS PROGRAM
ENVIRONMENTAL MANAGEMENT PLAN

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

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

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

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

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

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Table of Contents
NORTH CAROLINA BROWNFIELDS PROGRAM ENVIRONMENTAL MANAGEMENT PLAN ........................... 1
GENERAL INFORMATION ........................................................................................................................ 4
COMMUNICATIONS ................................................................................................................................ 4
NOTIFICATIONS TO THE BROWNFIELDS PROGRAM ............................................................................... 5
REDEVELOPMENT PLANS ........................................................................................................................ 5
CONTAMINATED MEDIA ......................................................................................................................... 7
PART 1. Soil ......................................................................................................................................... 8
PART 2. GROUNDWATER ................................................................................................................. 19
PART 3. SURFACE WATER .................................................................................................................. 21
PART 4. SEDIMENT ............................................................................................................................ 21
PART 5. SOIL VAPOR ......................................................................................................................... 21
PART 6. SUB-SLAB SOIL VAPOR ........................................................................................................ 22
PART 7. INDOOR AIR ......................................................................................................................... 23
VAPOR INTRUSION MITIGATION SYSTEM ............................................................................................. 24
CONTINGENCY PLAN – encountering unknown tanks, drums, or other waste materials ..................... 24
POST-REDEVELOPMENT REPORTING ..................................................................................................... 27
APPROVAL SIGNATURES ....................................................................................................................... 28

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

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

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

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

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

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

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

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

☐ A detailed construction schedule that includes timing and phases of construction.

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

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

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

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

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

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☐A work plan for the sampling and analysis of soil to be brought onto the Brownfields
Property. Refer to Issue Resolution 15 in Brownfields Program Guidelines.
☐A map of the Brownfields Property showing the location of soils proposed for export
and sampling data from those areas.
☐If a Vapor Mitigation System is required by the Brownfields Program, the Vapor
Intrusion Mitigation System (VIMS) plan will be signed and sealed by a NC Professional
Engineer. The VIMS Plan may also be submitted under separate cover.
GENERAL INFORMATION
Date:8/5/2022 Revision Date (if applicable): Click or tap to enter a date.
Brownfields Assigned Project Name: Durable Wood
Brownfields Project Number: 23058-19-060
Brownfields Property Address: The Site is located at 7901 Pence Road in Charlotte, Mecklenburg
County.
Brownfields Property Area (acres): The Site consists of one approximately 11.92-acre parcel identified
as Mecklenburg County Parcel Identification Number 10803130. The proposed activities covered by
this EMP include an area in the southeastern portion of the Brownfields Property.
Is Brownfields Property Subject to RCRA Permit?.......................☒ Yes ☐ No
If yes enter Permit No.: NCD003173358
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): Mecklenburg County Solid Waste Division
Contact Person: Martin Sanford, PE
Phone Numbers: Office: 980-314-3853 Mobile: [phone]
Email: [e-mail]
Contractor for PD: Click or tap here to enter text.

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Contact Person: Click or tap here to enter text.
Phone Numbers: Office: Click or tap here to enter text. Mobile: Click or tap here to enter text.
Email: Click or tap here to enter text.

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

Brownfields Program Project Manager: Carolyn Minnich
Phone Numbers: Office: Click or tap here to enter text. Mobile: [phone]
Email: [e-mail]

Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch,
Hazardous Waste, Solid Waste):
NC DEQ Hazardous Waste: Michael Babuin; 919-707-8211; [e-mail]

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:
Mecklenburg County Solid Waste facility expansion for truck parking and overflow mulch

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storage.

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:
Proposed redevelopment at the Site includes grading and installation of a gravel road and
parking area on the southeastern side of the Durable Wood property. A drainage swale will also
be installed along the gravel road. The additional parking area and associated access road are
intended to alleviate parking shortages for solid waste vehicles at the adjacent Hickory Grove
Solid Waste facility located east of the Site. A privacy berm will also be installed southwest of
the parking lot.

In addition, the area to the east of the access road and parking area is proposed for stockpiling of
excess mulch generated at the Hickory Grove facility. The proposed locations of the gravel access
road and fenced, gravel parking area as well as the mulch storage area are provided in Figure 2.
Please note, remnants of a pole barn are shown in the footprint of the proposed parking lot on
Figure 2. The pole barn has been demolished previously and remaining material will be removed
from the area prior to the installation of the parking lot.

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

5) Are sediment and erosion control measures required by federal, state, or local regulations?
☐ Yes ☒ No ☐ Unknown
☐ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements. If soil disturbance is necessary to install sediment and erosion
control measures, they may not begin until this EMP is approved.
6) Which category of risk-based screening level is used or is anticipated to be specified in the
Brownfields Agreement? Note: If children frequent the property, residential screening levels shall

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be cited in the Brownfields Agreement for comparison purposes.
☐ Residential ☒ Non-Residential or Industrial/Commercial

7) Schedule for Redevelopment (attach construction schedule):
a) Construction start date: 8/15/2022

b) Anticipated duration (specify activities during each phase):
The road construction activities are expected to be completed by December 2022.

c) Additional phases planned? ☒ Yes ☐ No

If yes, specify the start date and/or activities if known:
Start Date: Click or tap to enter a date.
Planned Activity:
Additional uses are planned by Mecklenburg County Solid Waste for the Brownfields Property
in the future; however, the timing and scope of these additional uses has not been
determined at this time.

Start Date: Click or tap to enter a date.
Planned Activity:
Click or tap here to enter text.

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

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

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

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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
1) Known or suspected contaminants in soil (list general groups of contaminants):
In September 2013, EPA Region 4 Science and Ecosystem Support Division (SESD) completed a
soil investigation which included collecting eight composite soil samples for laboratory analysis
from surface soil (approximately 0-0.5 feet below ground surface {ft bgs}) in historical treated
wood storage areas (TWSAs), primarily in the southeastern portion of the Site (sample locations
DW01 through DW08 in Figure 2). In May 2018, HDR Engineering Inc. conducted soil sampling in
the southeastern portion of the Site on behalf of Mecklenburg Co. Soil samples for laboratory
analysis were collected from five boring locations at depths of 0-5 ft or 1-5 ft bgs and 6-10 ft bgs
from each boring location (borings labeled SB-1 through SB-5 in Figure 2).

A tabular summary of the soil analytical data from these investigations is included as Table 1.
The soil analytical data is compared to the North Carolina Department of Environmental Quality
(DEQ) Preliminary Soil Remediation Goals (PSRGs) dated January 2022. Soil sample locations are
shown in Figure 2 and a brief summary of the soil assessment results is included below.

Semi-Volatile Organic Compounds
Multiple SVOCs were detected in each of the shallow soil samples collected from the TWSAs.
Pentachlorophenol was detected above the Non-Residential PSRG in soil samples DW01 (25
mg/kg), DW07 (12 mg/kg), and DW08 (220 mg/kg).

Metals
As expected, metals were detected in the soil samples collected at the Site in 2013 and 2018.
Metals concentrations were compared to the PSRGs as well as regional and Site-specific
background concentrations. Arsenic was detected at concentrations exceeding the Non-
Residential PSRGs as well as background metal concentrations, in DW01 (1,500 mg/kg), DW02
(39 mg/kg), DW03 (480 mg/kg), DW05 (200 mg/kg), DW06 (160 mg/kg), and DW08 (600 mg/kg).
These samples were all collected in the 0-0.5 ft depth interval
2) Depth of known or suspected contaminants (feet):
Impacted soil associated with the former treated wood storage areas, primarily from
pentachlorophenol and arsenic, was identified in shallow surface soil from approximately 0 to
0.5 ft bgs.
3) Area of soil disturbed by redevelopment (square feet):
The proposed road and drainage ditch soil disturbance is expected to total approximately 20,000
sq ft of soil disturbance area. The proposed parking area will be developed by adding stone to
the existing surface and significant soil disturbance is not anticipated in that area. Similarly, the

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mulch in the mulch storage area will be placed on the ground with minimal ground disturbance.
To ensure that no surface soil is mixed with the mulch and taken off-Site, the bottom 6-inches of
the mulch pile will not be disturbed until the mulch overflow is completely removed, at which
time stockpile sampling of the residual mulch will be completed to determine its proper
disposition. A plan for residual mulch sampling will be provided to DEQ for review. After
sampling and analysis, the analytical results will be provided to DEQ for review along with the
proposed disposition of the residual mulch for DEQ approval.

4) Depths of soil to be excavated (feet):
The access road will sit on an area of the Site that is already sloped from the natural Site
topography from southwest to northeast. However, in order to achieve the proposed road grade
of approximately 8.25%, soil cut depths ranging from approximately 5 ft to approximately 12 ft
below existing grade will be needed for the approximate length of the road (400 ft). A drainage
ditch will also be located on the southeastern side of the road for erosion control. Within the
drainage ditch of the proposed road, soil will be excavated further to approximately 1.5 ft below
the grade of the road.

5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan):
The estimated volume of soil to be excavated for the road cut and drainage ditch is estimated to
be approximately 3,000 cubic yards.

6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants:
The proposed road and drainage ditch will result in approximately 3,000 cubic yards of soil.
Limited soil data has been collected within the proposed road and drainage ditch cut areas.
Based on the data gap, in-situ soil sampling is proposed to verify the soil is non-hazardous within
the road and drainage ditch areas as described in Section 1.A.4 below.

7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable:
Assuming that the in-situ soil sampling indicates that the soil is non-hazardous, the soil excavated
from the proposed road and drainage ditch will be reused on the Site for use in a privacy berm
which would be constructed on the southwestern side of the parking lot. The berm will be
approximately 5 to 7 feet tall and will be sloped and covered with mulch for erosion control and
establishment of vegetation. The proposed berm location is shown on Figure 2. The soil may
eventually be taken off-Site to a permitted landfill depending upon future development
activities.

If in-situ soil sample data indicate that the soil is a potential hazardous waste if excavated, then
the procedures in Section 1.A.1 below will be considered.

Part 1.A. MANAGING ONSITE SOIL
If soil is anticipated to be excavated from the Brownfield Property, relocated on the Brownfields

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Property, or otherwise disturbed during site grading or other redevelopment activities, please
provide a grading plan that clearly illustrates areas of cut and fill (approximate areas & volumes are
acceptable, if only preliminary data available).

1) HAZARDOUS WASTE DETERMINATION:
a) Does the soil contain a LISTED WASTE as defined in the North Carolina Hazardous
Waste Section under 40 CFR Part 261.31-261.35?....................................... ☐Yes ☒No
☐ If yes, explain why below, including the level of knowledge regarding processes
generating the waste (include pertinent analytical results as needed).
The proposed road/ditch and parking lot are not located in the areas of Solid
Waste Management Units (SWMUs) where listed wastes could potentially be
present. The proposed road/ditch and parking lota are located in TWSAs only.

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

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

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

d) NOTE: IF SOIL MEETS THE DEFINITION OF A CHARACTERISTIC HAZARDOUS WASTE, THE
SOIL MAY NOT BE RE-USED ON SITE AND MUST BE DISPOSED OF IN ACCORDANCE

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WITH DEQ HAZARDOUS WASTE SECTION RULES AND REGULATIONS.

2) Screening criteria by which soil disposition decisions will be made (e.g., left in place, capped in
place with low permeability barrier, removed to onsite location and capped, removed offsite):
☐ Preliminary Health-Based Residential SRGs
☒ Preliminary Health-Based Industrial/Commercial SRGs
☒ Division of Waste Management Risk Calculator (For Brownfields Properties Only)
☐ Site-specific risk-based cleanup level. Please provide details of methods used for
determination/explanation.
Click or tap here to enter text.

Additional comments:
Click or tap here to enter text.

3) If known impacted soil is proposed to be reused within the Brownfields Property Boundary,
please check the measures that will be utilized to ensure safe placement and documentation of
same. Please attach a proposed location diagram/site map.
☒ Provide documentation of analytical report(s) to Brownfields Project Manager
☒ Provide documentation of final location, thickness and depth of relocated soil on site map
to Brownfields Project Manager once known
☐ Geotextile to mark depth of fill material.
Provide description of material:
Click or tap here to enter text.

☒ Manage soil under impervious cap ☒ or clean fill ☒
☒ Describe cap or fill:
The potentially impacted excavated soil will be placed within a privacy berm southwest of
the parking lot. The berm will be tamped with equipment, covered with mulch and/or
compost from the Hickory Grove Facility Operations, and seeded to minimize the potential
for erosion. The berm will be periodically inspected by Mecklenburg Co personnel and
areas of erosion will be repaired if identified.
☒ Confer with NC BF Project Manager if Brownfield Plat must be revised (or re-recorded if
actions are Post-Recordation).
☐ GPS the location and provide site map with final location.
☐ Other. Please provide a description of the measure:

4) Please describe the following action(s) to be taken during and following excavation and
management of site soils:
Click or tap here to enter text.

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Management of fugitive dust from site
☒ Yes, describe the method will include:
Grading work will consider conditions such as wind speed, wind direction, and moisture
content of soil during, excavations, soil grading, and stockpiling activities to minimize dust
generation. Particular attention will be paid by Mecklenburg Co employees to implement
dust control measures as needed based on site and atmospheric conditions (i.e., by
controlled water application, hydro-seeding, and/or mulch, stone, or plastic cover).
Potentially impacted soil will be managed as described below.

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

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

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

Soil Sample Collection
☒ Yes, describe the sampling method (e.g., in-situ grab, composite, stockpile, etc.):
H&H proposes to conduct pre-grading soil assessment activities to evaluate the disposition
of soil which will be disturbed for the road and associated ditch construction. Based upon
existing topography and the proposed road grade of approximately 8.25%, proposed soil
cuts along the road and ditch will be approximately 5 to 12 feet below existing grade. It is
anticipated that no soil will be excavated from the parking lot or mulch storage area and
therefore no soil samples are proposed from this area.

For soil characterization purposes, H&H divided the roadway into four (4) in-situ soil
characterization sections based on existing topography and expected soil cut depths in
each area. H&H proposes to collect soil samples for laboratory analysis in each soil
characterization section to represent material that will be disturbed during roadway
construction. The in-situ soil characterization sections denoted EX-1 through EX-4 are
shown in Figure 3.

In each of the four soil characterization sections, four soil borings will be advanced to a

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depth corresponding to the estimated cut depth in that characterization section. The soil
borings will be advanced by a stainless steel hand auger and/or samples will be collected
from the middle of an excavator bucket operated by Mecklenburg Co personnel. During
boring/excavator bucket advancement, continuous soil samples will be collected and the
soil will be logged for lithologic description, inspected for the presence of visual and
olfactory indication of potential impacts, and screened for the presence of volatile organic
vapors with a calibrated photoionization detector (PID).

Based upon estimated cut depths, the borings/sample excavations in sections EX-1 and
EX-4 on the southern and northern ends of the road will be advanced to approximately 5
ft bgs. The borings/sample excavations in the two central areas, EX-2 and EX-3, will be
advanced to approximately 12 ft bgs. Proposed soil boring locations for each soil
characterization section are shown in Figure 3.

Soil sample aliquots will be collected from throughout the depths of borings/sample
excavations in each soil characterization section. Soil sample aliquots collected from each
boring/sample excavations in a section will be homogenized in a decontaminated bowl to
form one composite soil sample representative of the cut depths in that section for
laboratory analysis. In sections EX-1 and EX-4, the soil from each aliquot will be
homogenized to represent soil from 0-5 ft bgs. In sections EX-2 and EX-3, the shallow soil
(0-6 ft bgs) will be homogenized to evaluate shallow soil and the deeper soil (6-12 ft bgs)
will be homogenized to evaluate the deeper cut sections for a total of two composite
samples per section. The six (6) composite soil samples will be collected directly into
dedicated laboratory supplied sample containers, labeled with the date, time, and sample
identification, and placed in a laboratory supplied sample cooler with ice. The samples
will be submitted to a North Carolina certified laboratory under standard chain of custody
protocols for analysis of TCLP semi volatile organic compounds (SVOCs) and TCLP Resource
Conservation and Recovery Act (RCRA) metals.

In addition to the composite in situ soil samples described above, one representative grab
soil sample will be collected from each soil characterization section and corresponding
depth interval, when applicable, for a total of six (6) grab samples. Based on results of
field screening, a grab soil sample will be collected from the aliquot exhibiting the highest
likelihood for impact in each soil characterization area. If field screening results do not
identify obvious presence of impacts in an aliquot soil sample, the grab samples will be
collected from a randomly selected aliquot in each evaluation area. The grab soil samples
will be collected from undisturbed portions of soil directly into laboratory supplied
glassware and submitted to a North Carolina certified laboratory under standard chain of
custody protocols for analysis of TCLP VOCs

If the results of analysis of the four samples representative of the four excavation areas
indicate that the soil is non-hazardous then the excavated soil will be used for the berm
on the southwestern side of the parking lot. If the results of analysis of the samples
representative of the four excavation areas indicates that the soil in one or more of the
excavation areas could be a potential hazardous waste if excavated, then a plan will be
developed for DEQ review and approval that could include further characterization of the
soil in an excavation section to determine if there are “hot spots” that need to be

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segregated out of the soil and disposed off-site, on-Site treatment of the soil so that it
passes TCLP and then can be reused, or off-site disposal of the soil either with or without
on-Site treatment.

☐ 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
and silver): Specify Analytical Method Number(s): Plus copper and zinc by EPA Methods 6020/7471
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Specify Analytical Method Number(s): TCLP for above methods

☒ Check to confirm that stockpiling of known or suspected impacted soils will be conducted
in accordance with the attached Figure 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): Click or tap here to enter text.
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
This method will be used if temporary stockpiling of the excavated soil needs to occur for an extended
period of time which is not anticipated.

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☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): 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
which should be taken from 1-2 ft below ground surface. Alternatively, indicate if a work
plan for final grade sampling may be submitted under separate cover.
Click or tap here to enter text.

☒ If final grade sampling was NOT selected, please explain rationale:
Final grade sampling is not proposed because soil disturbance will be limited to the road
which will be covered with gravel to limit exposure. Further, the parking area will not be
occupied by personnel for extended periods of time as it is proposed for overflow truck
parking only. The berm will be constructed of soil from the roadway excavation, which will
be characterized during the in-situ sampling as outlined above. As such, no additional soil
sampling as part of final grade sampling is warranted.

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?
The current Site redevelopment plan results in generation of soil, and therefore fill is not
proposed at this time. The cut from the roadway and drainage ditch will be used to build a berm
unless results of the in-situ soil assessment outlined above indicate the soil may not be reused
without treatment or further evaluation.

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.)
The soil berm will be approximately 5 to 7 ft high.

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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:
No use of off-Site fill is anticipated. In the event that fill is required other than the soil generated
during road cut activities, the PD may utilize a DEQ-approved borrow source, another local
Brownfields property with export soil, or another fill source. Once a potential fill source has been
identified, the PD will provide the information and proposed import source to the DEQ
Brownfields Program for approval.

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.
If fill needs to be obtained from a source other than a DEQ Brownfields pre-approved borrow
site, the fill soil will be sampled and approved by DEQ Brownfields prior to being brought to the
Site. See No. 7 below for details outlining the proposed plan to demonstrate that import soil is
suitable for use 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): Plus copper and zinc by EPA Methods 6020/7471
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Hexavalent chromium by EPA Method 7199

7) The scope of work for import fill sampling may be provided below or in a Work Plan
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.
If off-Site fill is needed, the PD will follow the procedures outlined below to demonstrate import
soil meets acceptable standards applicable to the Site:

- If the PD plans to import virgin fill material (i.e., not reused or recycled material) from Vulcan
Materials Company quarry located near Pineville, NC or from the Martin Marietta quarry located
on Beatties Ford Road in Charlotte, NC, no samples of the import material will be collected as
adequate analytical data is available in the DEQ Brownfields database to demonstrate material from

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these facilities is suitable for use as structural fill at a Brownfields property.

- If fill soil is obtained from an off-Site property that is not a known permitted quarry, soil samples
will be collected for laboratory analyses indicated above at a general rate of approximately one
sample per 1,000 cubic yards. The sample will consist of a composite sample (with a minimum 3
aliquots samples) for non-VOC analysis and a grab sample for VOC analysis.

- If the proposed borrow source is from another Brownfields property, then data from that property
will be compared to data from the Site to determine if it is acceptable for use at the Site. If
insufficient data is not available from the borrow source, then additional soil samples may need to
be collected using the sampling strategy in the above bullet.

Off-Site fill soil will be considered suitable for use at the Site if it does not contain compound
concentrations above DEQ Residential PSRGs, metals concentrations are generally consistent with
regional background levels or background levels consistent with concentrations previously
identified at the Brownfields Property, or the results of risk calculations using the latest version of
the DEQ Risk Calculator indicate that VOC, SVOC, and metals concentrations detected in fill soil are
suitable for a residential exposure scenario. DEQ approval of the analytical results will be obtained
prior to transporting import soil to the Site.
If necessary for berm cover, the PD may import limited amounts of topsoil from a commercial
landscape material vendor. The PD does not plan to collect samples of landscaping materials prior
to placement at the Site.

Part 1.C. EXPORTED SOIL

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

1) If export from a Brownfields Property is anticipated, please provide details regarding the
proposed export actions. Volume of exported soil, depths, location from which soil will
be excavated on site, related sampling results, etc. Provide a site map with locations of
export and sampling results included.
If the results of analysis of the four samples representative of the four excavation areas indicate
that the soil is non-hazardous then the excavated soil will be used to construct a privacy berm
southwest of the parking lot which will be covered with mulch and then seeded to reduce erosion.
If the results of analysis of the samples representative of the four excavation areas indicates that
the soil in one or more of the excavation areas could be a potential hazardous waste if excavated,

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then a plan will be developed for DEQ review and approval that could include further
characterization of the soil in an excavation section to determine if there are “hot spots” that
need to be segregated out of the soil and disposed off-site, on-Site treatment of the soil so that
it passes TCLP and then can be reused on-Site, or off-site disposal of the soil either with or without
on-Site treatment.

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?
☐ If yes, provide specifications on barrier materials or provide the results of this evaluation in the
Vapor Mitigation Plan. Note that if vapor mitigation is planned for site buildings, utility
corridors will need to be evaluated as part of mitigation designs:

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Click or tap here to enter text.

☒ If no, include rationale here:
No utility trenches will be excavated as part of the activities.

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

Other comments regarding managing impacted soil in utility trenches:
Click or tap here to enter text.

PART 2. GROUNDWATER
1) What is the depth to groundwater at the Brownfields Property?
Sampling conducted in 2018 in the southeastern portion of the Site indicates depths to
groundwater of approximately 25 to 30 ft bgs.
2) Is groundwater known to be contaminated by ☒onsite ☐offsite ☐both or ☐unknown
sources? Describe source(s):
Groundwater samples have been collected at the Site during monitoring activities for the closure
of the wastewater treatment system surface impoundment which was located northwest of the
area of proposed road and parking lot. The groundwater monitoring well locations for the
surface impoundment (labeled MW-A through MW-I and POC) are shown on Figure 4. The
primary compounds of concern identified in groundwater downgradient of the surface
impoundment are 2-methylnaphthalene, naphthalene, and pentachlorophenol, arsenic, and
cobalt. Several other metals were detected in groundwater at elevated concentrations including
iron and manganese, however these compounds are naturally occurring and no information is
available about the turbidity of the samples when collected which could influence the detected
metals concentrations. A tabular summary of groundwater sample analytical results is included
as Table 2. In Table 2, the groundwater analytical results are compared to the NCAC 2L
Standards and DWM Vapor Intrusion Groundwater Screening Levels (GWSLs).

Additional groundwater assessment was completed in 2018 on behalf of Mecklenburg County in
the southeastern portion of the Site in the area of the proposed road and parking lot. The
groundwater assessment included advancing three temporary groundwater monitoring wells
and seven direct push screen points. The locations of these samples (labeled with a 1GW, 2GW,
or TGW prefix) are indicated in Figure 4. Naphthalene, pentachlorophenol, and phenol were
detected in one sample location (TGW-1) above screening levels. Similar to the samples from the
permanent monitoring wells, several metals were detected at elevated concentrations, however
recorded turbidity for the samples is well above the 10 NTU limit at which turbidity make affect
metals results. The 2018 results are also summarized in Table 2.

3) What is the direction of groundwater flow at the Brownfields Property?
Groundwater flow is toward the northeast and generally follows Site topography.

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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 upon reported depth to groundwater, it is not anticipated that groundwater will be
encountered during the grading activities. However, appropriate worker safety measures will
be undertaken if groundwater gathers in an open excavation within an area determined to be
impacted (based on previous sampling data, strong odor, unnatural color, sheen, etc.) during
construction activities. The Environmental Professional will be contacted to observe the area(s)
suspected to be impacted. The accumulated water will be allowed to evaporate/infiltrate to the
extent that time for dissipation does not disrupt the construction schedule. Should the time
needed for natural dissipation of accumulated water be deemed inadequate, the water will be
tested for the presence of VOCs, SVOCs, and RCRA metals and disposed of off-Site (if impacted),
or tested and discharged to the stormwater management systems (if not impacted above DEQ
surface water standards) in accordance with applicable municipal and State regulations for
erosion control and construction stormwater control.

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:
The proposed roadway is not in the vicinity of the existing Site monitoring wells. Well locations will be
identified with flagging in the field before the start of construction to avoid damaging the wells with
large equipment during road construction activities.

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

PART 3. SURFACE WATER
1) Is surface water present at the property? ☐ Yes ☒ No ☐ Unknown
2) Attach a map showing the location of surface water at the Brownfields Property.
3) Is surface water at the property known to be contaminated? ☐ Yes ☐ No
4) Will workers or the public be in contact with surface water during planned redevelopment
activities? ☐ Yes ☐ No
5) In the event that contaminated surface water is encountered during redevelopment
activities, or clean surface water enters open excavations, list activities for management of
such events (e.g. flooding, contaminated surface water run-off, stormwater impacts):
Not applicable.

PART 4. SEDIMENT

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

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

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

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

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

PART 5. SOIL VAPOR
1) Do concentrations of volatile organic compounds at the Brownfields property exceed the following vapor intrusion screening levels (current version) in the following media:

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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 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 potentially contaminated soil vapors are encountered during grading (i.e., unusual
odors identified, or obvious stained soil or waste material observed), the area will be evacuated
and appropriate safety screening of the vapors will be performed. If results indicate further
action is warranted, appropriate engineering controls (such as the use of industrial fans) will be
implemented.

PART 6. SUB-SLAB SOIL VAPOR
1) Do concentrations of volatile organic compounds at the Brownfields property exceed the
following vapor intrusion screening levels (current version) in sub-slab soil vapor:
IHSB Residential Screening Levels:
Soil Vapor:………..☐ Yes ☐ No ☒ Unknown
Groundwater:.….☐ Yes ☐ No ☒ Unknown
IHSB Industrial/Commercial Screening Levels:
Soil Vapor:………..☐ Yes ☒ No ☐ Unknown
During the 2018 assessment completed by HDR, one soil gas point was installed at the Site. The
location of the soil gas sample is shown on Figure 5 and a tabular summary of the analytical results is
provided in Table 3. Multiple VOCs were detected above the laboratory method detection limit, and
with the exception of 1,3-butadiene were detected below the Non-Residential SGSLs. The detected
1,3-butadiene concentration of 44 µg/m3 exceeds the Non-Residential SGSL of 41 µg/m3. However,
literature indicates that the presence of 1,3-butadiene in soil vapor samples is typically from friction
caused by use of O-rings in DPT sample equipment and its presence should be assumed to be a false
positive (see: Problematic Compounds in Vapor Intrusion Investigations - Guest Article by Mr. Bart
Eklund - Vapor Pin®Vapor Pin®)

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2) Groundwater:…..☒ Yes ☐ No ☐ Unknown If data indicate that sub-slab soil vapor
concentrations exceed screening levels, attach a map showing the location of these exceedances.
3) At what depth(s) is sub-slab soil vapor known to be contaminated? ☐0-6 inches ☐Other, please
describe:
No buildings are present in the proposed roadway and parking lot area.

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

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

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

☐ If no, include rationale here:
Click or tap here to enter text.
4) In the event that contaminated indoor air is encountered during redevelopment activities, list
activities for management of such contact:

In the event potentially contaminated soil vapors are encountered during grading (i.e., unusual odors
identified, or obvious stained soil or waste material observed), the area will be evacuated and
appropriate safety screening of the vapors will be performed. If results indicate further action is
warranted, appropriate engineering controls (such as the use of industrial fans) will be implemented..

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

☒ If no or unknown, include rationale here as well as plans for pre-occupancy sampling, as
necessary:
The proposed redevelopment at the Site includes a roadway, parking lot, and mulch pile which
will not be enclosed space. As such, no vapor intrusion mitigation system is necessary.

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

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

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

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

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

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

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

☒ Other Constituents & Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.)
Please note, if field observations indicate the need for additional analyses, they should
be conducted, even if not listed here.
TCLP for above methods

Please provide details on the proposed methods of managing the following commonly
encountered issues during redevelopment of Brownfields Properties.
Prior to beginning Site work, H&H will attend a pre-construction kick-off meeting with the PD and
the roadway construction team to discuss the DEQ-approved EMP. The pre-construction meeting
will be conducted to discuss various scenarios during which it would be appropriate and/or
necessary to notify H&H including the discovery of unknown subsurface features, potentially
impacted media at the Site, or other scenarios as outlined in the EMP. Please note, the kick-off
meeting is not a substitute for the PD and roadway construction team to review and be familiar
with all aspects of the DEQ-approved EMP.

During construction activities, workers may encounter unknown subsurface environmental
conditions (i.e., tanks, drums, or waste materials) that, if encountered, will require management.
In the event that such conditions are encountered during Site development activities, the actions
noted below will be used. Sampling data for potentially impacted soil and the disposition of
impacted soil will be provided to DEQ when the data becomes available.

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

If a UST is encountered, residual fluids (if present) will be removed, sampled for VOCs, SVOCs, and
RCRA metals, and transported off-Site for disposal at a suitable facility based on the laboratory
analytical results. Following the removal of residual fluids, the tank will be removed and closure soil
sampling will be performed. The number of soil samples will be consistent with DEQ UST Section
guidelines. The soil samples will be submitted for laboratory analysis of VOCs, SVOCs, and RCRA
metals. Impacted soil will be managed in accordance with the Managing On-Site Soil section
outlined above in the EMP.

If the UST cannot be removed for geotechnical or construction purposes, DEQ will be notified for

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approval of in-place closure. Following DEQ approval, closure soil sampling will be performed in
general accordance with the DEQ UST Section guidelines. Where appropriate, the bottom of the
UST may be penetrated before abandonment to prevent fluid accumulation. If the UST contains
residual fluids, the fluids will be removed, sampled for VOCs, SVOCs, and RCRA metals, and
transported off-site for disposal at a suitable facility based on the laboratory analytical results. A
survey plat update may also be needed in the event of in-place closure of USTs.

Sub-Grade Feature/Pit:
If a sub-grade feature or pit is encountered and does not require removal for geotechnical or
construction purposes, it will be filled with soil or suitable fill and construction will proceed. Where
appropriate, the bottom may be penetrated before backfilling to prevent fluid accumulation. If the
pit has waste in it, the waste will be set aside in a secure area and will be sampled for waste
disposal purposes for TCLP VOCs, TCLP SVOCs, and TCLP metals and disposed of off-Site at a
permitted facility or the waste will be managed in accordance with the Managing On-Site Soil
section outlined above in the EMP, whichever is most applicable based on the type of waste
present. If the pit must be removed and the observed waste characteristics indicate the concrete
may potentially be contaminated to a significant degree, the concrete will be sampled and analyzed
by methods specified by the disposal facility.

Buried Waste Material – Note that if buried waste, non-native fill, or any obviously filled materials
is encountered, the DEQ Brownfields Program must be notified to determine if investigation of
landfill gases is required:
If excavation into buried wastes or significantly impacted soils occurs, workers will be instructed to
stop work in that location and notify the Environmental Professional. The Environmental
Professional will observe the suspect materials and collect samples if warranted. In this event,
confirmation sampling will be conducted at representative locations in the base and the sidewalls of
the excavation after the waste or significantly impacted soil is removed. The confirmation samples
will be analyzed for VOCs, SVOCs, and RCRA metals (or other analyses as appropriate based on the
type of waste material). Information will be provided to DEQ Brownfields and Hazardous Waste
regarding the permitted facility used for disposal of the waste or significantly impacted soil.

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

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

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

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POST-REDEVELOPMENT REPORTING

☒ Check this box to acknowledge that a Redevelopment Summary Report will be required for the
project. If the project duration is longer than one year, an annual update is required and will be
due by January 31 of each year, or 30 days after each one-year anniversary of the effective date of
this EMP (as agreed upon with the Project Manager). These reports will be required for as long as
physical redevelopment of the Brownfields Property continues, except that the final
Redevelopment Summary Report will be submitted within 90 days after completion of
redevelopment. Based on the estimated construction schedule, the first Redevelopment Summary
Report is anticipated to be submitted on 1/31/2023

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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Tables
Table 1 Summary of Soil Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. MEC-003Evaluation AreaBackgroundSample IDDW01 DW02 DW03 DW04 DW05 DW06 DW07 DW08 ControlDate4/23/2013 4/23/2013 4/23/2013 4/23/2013 4/23/2013 4/23/2013 4/23/2013 4/23/2013 4/23/2013Depth (ft bgs)0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5Sample TypeComposite - 3 aliquots Composite - 4 aliquots Composite - 3 aliquots Composite - 4 aliquots Composite - 4 aliquots Composite - 4 aliquots Composite - 4 aliquots Composite - 4 aliquots Grab RangeUnitsSVOCs (8270D)1-Methylnaphthalene<0.0370.024<0.037 <0.00420.0041<0.0039 <0.0038 <0.0730.0673 --2,3,4,6-Tetrachlorophenol0.960 J, Q-2 0.110 J, Q-2<0.360 <0.420 <0.370 <0.3800.050 J, Q-2 6.4 J, Q-2<0.3904,900 --2-Methylnaphthalene0.050 0.040 0.0048<0.00420.0082 0.0063<0.00380.120 0.140600 --Acenaphthene<0.0370.0043<0.0037 <0.0042 <0.0037 <0.0039 <0.0038 <0.073 <0.00409,000 --Acenaphthylene<0.0370.0044<0.0037 <0.00420.0042<0.0039 <0.0038 <0.0730.017NE --Anthracene<0.0370.0088<0.0037 <0.00420.0047 0.0069<0.00380.077 0.008145,200 --Benzaldehyde<3.700 <0.3800.087 J, Q-2<0.4200.050 J, Q-2 0.051 J, Q-2<0.380 <7.300 <0.390820 --Benzo(a)anthracene0.055 0.028 0.0053<0.00420.037 0.0082 0.0057<0.0730.03121 --Benzo(a)pyrene0.130 0.030 0.0070<0.00420.042 0.037 0.0110.2100.0342.1 --Benzo(b)fluoranthene0.120 0.052 0.015<0.00420.100 0.041 0.011 0.18 0.04821 --Benzo(g,h,i)perylene0.068 0.024 0.012<0.00420.044 0.014 0.0073 0.083 0.030NE --Benzo(k)fluoranthene0.065 0.041 0.0099<0.00420.072 0.021 0.0081 0.140 0.034210 --Bis(2-Ethylhexyl)phthalate<3.700 <0.380 <0.360 <0.420 <0.370 <0.380 <0.3803.8 J, Q-2<0.390160 --Carbazole<0.0370.011<0.0037 <0.00420.0063<0.0039 <0.00380.540 0.0083NE--Chrysene0.130 0.077 0.012<0.00420.096 0.035 0.013 0.350 0.0552,100 --Di-n-octylphthalate<3.700 <0.380 <0.360 <0.420 <0.370 <0.3802.6 1.2 J, Q-2<0.3901,600 --Dibenz(a,h)anthracene<0.0370.0078 0.0039<0.00420.011 0.0040<0.0038 <0.0730.0112.1 --Fluoranthene0.096 0.170 0.012<0.00420.120 0.024 0.013 0.330 0.1106,000 --Flourene<0.037 <0.0038 <0.0037 <0.0042 <0.0037 <0.0039 <0.0038 <0.0730.00426,000 --Hexachlorobenzene<0.0370.014 J, QL-1<0.0037 <0.0042 <0.0037 <0.0039 <0.0038 <0.073 <0.00400.99 --Indeno(1,2,3-cd)pyrene0.057 0.020 0.0086<0.00420.032 0.014 0.0059<0.0730.02521 --Naphthalene<0.0370.023 0.0042<0.00420.066 0.0053<0.0038 <0.0730.1708.8 --Pentachlorophenol252.0 0.830 0.049 0.610 0.96012 2200.100 4.0 --Phenanthrene0.086 0.100 0.011<0.00420.021 0.012 0.0062 0.290 0.140NE--Pyrene0.130 0.140 0.016<0.00420.140 0.030 0.036 2.4 0.0774,500 --Metals (200.8/6010/7471B/7199)Aluminum 12,000 7,100 6,500 7,700 7,200 7,400 7,100 4,700 6,000 230,000 7,000 - >100,000*Antimony<25 <0.50 <4.9 <0.25 <2.5 <2.5 <0.25 <5.0 <0.2593 <1.0 - 8.8*Arsenic1,500 39 4802.7200 160146000.30 3.0 1.0 - 18Barium 120 52 65 14 72 39 26 36 34 47,000 50 - 1,000Beryllium<1.2 <0.30 <0.89 <0.59 <0.60 <0.30 <0.30 <0.60 <0.30470 ND - 2.0Cadmium<12 <0.25 <2.5 <0.12 <1.2 <1.2 <0.12 <2.5 <0.1220 1.0 - 10**Calcium 4,500 440 3,600 400 5,200 1,800 1,200 1,700 180 NE 100 - 280,000*Chromium (total) 1,900 51 680 53 250 J, QM-1, QM-2, QM-3250 42 600 13 NE 7.0 - 300Chromium (VI)<5.4 <5.5 <5.2 <6.0 <5.2 <5.6 <5.4 <5.3 <5.76.5 NSCobalt 12 5.0 7.7<0.999.0 4.0 2.8 4.1 1.6 70 ND - 50Copper 1,200 28 350 28 180 J, QM-2 160 27 270 30 9,300 3.0 - 100Iron 21,000 14,000 13,000 34,000 18,000 18,000 16,000 13,000 13,000 160,000 100 - > 100,000*Lead<2522 11 7.0 12 6.8 6.6 17 5.3 800 ND - 50Magnesium 7,800 540 3,700 220 4,600 J, QM-2 1,800 870 2,100 210 NE 50 - 50,000*Manganese 580 410 320 120 400 230 150 230 82 5,600 8 - 3,394**Molybdenum<4.0 <0.99 <3.0 <2.0 <2.0 <1.0 <1.0 <2.0 <0.981,200 NSNickel 16 3.6 23<2.013 4.7 2.2 6.0 2.2 4,700 ND - 150Potassium 4,000 200 1,700 230 1,700 850 580 1,000 240 NE 50 - 37,000*Selenium<50 <0.99 <9.8 <0.49 <5.0 <5.0 <0.50 <9.9 <0.491,200 <0.1 - 0.8Silver<2.0 <0.50 <1.5 <0.99 <1.0 <0.50 <0.50 <0.99 <0.491,200 ND - 5.0**Sodium<400 <99 <300 <200 <200 <100 <1000.472J<98NE <500 - 50,000*Strontium 28 3.7 16 2.7 17 7.9 4.7 7.1 2.3 140,000 ND - 300Thallium<25 <0.50 <4.9 <0.25 <2.5 <2.5 <0.25 <5.0 <0.252.3 NSTin<5.9 <1.5 <4.4 <3.0 <3.0 <1.5 <1.5 <3.0 <1.5140,000 <0.1 - 10*Titanium 550 41 280 140 310 J, QM-2 140 110 170 44 NE 3,000 - 7,000Vanadium 45 38 28 92 32 47 39 21 35 1,200 15 - 300Yttrium 5.5 3.8 3.1 2.4 4.7 3.2 2.0 4.1 3.8 NE <10 - 50Zinc 550 110 500 10 56 50 29 140 26 70,000 25 - 124Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022.2) Range values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.3) Site-specific background metals were collected near the front office on the western portion of the Site by Science and Ecosystem Support Division (SESD) in April 2013. * Range values reference Eastern U.S. Soils** Range values reference Southeastern U.S. SoilsSoil samples DW01 through DW08 were collected in April 2013 by SESD and soil samples SB-1 through SB-5 were collected by HDR Engineering, Inc. in May 2018. Soil concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the Industrial/Commercial PSRGs and background values in the case of metals. SVOCs = semi-volatile organic compounds; ft bgs= feet below ground surface; NA = not analyzed; NS = not specified; NE = not established; -- = not applicable; ND = non detectJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. M1 = Matrix spike exceeded the quality control lmiits, however the batch was accepted based on laboratory control sample recovery.Q-2 = Analyte concentration high in continuing calibration verification standard.QM-1 = Matrix Spike Recovery less than method control limits.QM-2 = Matrix Spike Recovery greater than method control limits.QM-3 = Matrix Spike Precision outside method control limits.mg/kgScreening Criteria Industrial/ Commercial PSRGs (1)Regional Background Metals in Soil (2)Treated Wood Storage Areashttps://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Mecklenburg County ‐ MEC/MEC‐003 Durable Wood/EMP/Data Tables_04.11.22Table 1 (Page 1 of 2)Hart & Hickman, PC
Table 1 Summary of Soil Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. MEC-003Evaluation AreaBackgroundSample IDControlDate4/23/2013Depth (ft bgs)0-5 6-10 1-5 6-10 1-5 6-10 0-5 6-10 0-5 6-10 0-0.5Sample TypeGrab Grab Grab Grab Grab Grab Grab Grab Grab Grab Grab RangeUnitsSVOCs (8270D)1-Methylnaphthalene<0.076 <0.078 <0.079 <0.079 <0.066 <0.068 <0.078 <0.079 <0.077 <0.0770.0673 --2,3,4,6-TetrachlorophenolNA NA NA NA NA NA NA NA NA NA <0.3904,900 --2-Methylnaphthalene<0.063 <0.065 <0.066 <0.065 <0.054 <0.056 <0.065 <0.066 <0.064 <0.0640.140600 --Acenaphthene<0.054 <0.055 <0.056 <0.056 <0.046 <0.048 <0.055 <0.056 <0.054 <0.054 <0.00409,000 --Acenaphthylene<0.057 <0.058 <0.060 <0.059 <0.049 <0.051 <0.059 <0.060 <0.058 <0.0580.017NE --Anthracene<0.064 <0.065 <0.066 <0.066 <0.055 <0.057 <0.065 <0.066 <0.064 <0.0640.008145,200 --BenzaldehydeNA NA NA NA NA NA NA NA NA NA <0.390820 --Benzo(a)anthracene<0.052 <0.053 <0.054 <0.053 <0.045 <0.046 <0.053 <0.054 <0.052 <0.0520.03121 --Benzo(a)pyrene<0.043 <0.044 <0.044 <0.044 <0.037 <0.038 <0.044 <0.045 <0.043 <0.0430.0342.1 --Benzo(b)fluoranthene<0.046 <0.047 <0.048 <0.047 <0.040 <0.0.41 <0.047 <0.048 <0.046 <0.0460.04821 --Benzo(g,h,i)perylene<0.043 <0.044 <0.045 <0.045 <0.037 <0.038 <0.045 <0.045 <0.044 <0.0440.030NE --Benzo(k)fluoranthene<0.052 <0.053 <0.054 <0.054 <0.045 <0.046 <0.053 <0.054 <0.052 <0.0520.034210 --Bis(2-Ethylhexyl)phthalate<0.059 <0.060 <0.061 <0.061 <0.051 <0.052 <0.060 <0.061 <0.059 <0.059 <0.390160 --CarbazoleNA NA NA NA NA NA NA NA NA NA0.0083NE--Chrysene<0.050 <0.051 <0.052 <0.051 <0.043 <0.044 <0.051 <0.052 <0.050 <0.0500.0552,100 --Di-n-octylphthalate<0.049 <0.050 <0.051 <0.050 <0.042 <0.043 <0.050 <0.051 <0.049 <0.049 <0.3901,600 --Dibenz(a,h)anthracene<0.048 <0.049 <0.050 <0.050 <0.041 <0.043 <0.049 <0.050 <0.049 <0.0490.0112.1 --Fluoranthene<0.050 <0.051 <0.052 <0.052 <0.043 <0.045 <0.052 <0.052 <0.051 <0.0510.1106,000 --Flourene<0.057 <0.058 <0.059 <0.059 <0.049 <0.050 <0.058 <0.059 <0.057 <0.0570.00426,000 --Hexachlorobenzene<0.063 <0.064 <0.065 <0.065 <0.054 <0.056 <0.064 <0.065 <0.064 <0.063 <0.00400.99 --Indeno(1,2,3-cd)pyrene<0.045 <0.046 <0.047 <0.047 <0.039 <0.040 <0.047 <0.047 <0.046 <0.0460.02521 --Naphthalene<0.064 <0.065 <0.066 <0.066 <0.055 <0.056 <0.065 <0.066 <0.064 <0.0640.1708.8 --Pentachlorophenol<0.047 <0.048 <0.049 <0.048 <0.040 <0.041 <0.048 <0.049 <0.047 <0.0470.100 4.0 --Phenanthrene<0.051 <0.052 <0.053 <0.053 <0.044 <0.046 <0.053 <0.053 <0.052 <0.0520.140NE--Pyrene<0.052 <0.053 <0.054 <0.054 <0.045 <0.046 <0.054 <0.054 <0.053 <0.0530.0774,500 --Metals (200.8/6010/7471B/7199)Aluminum 30,000 25,000 30,000 25,000 13,000 13,000 15,000 11,000 23,000 22,000 6,000 230,000 7,000 - >100,000*AntimonyNA NA NA NA NA NA NA NA NA NA <0.2593 <1.0 - 8.8*Arsenic 5.1 5.1 5.2 2.2 3.4 4.8 2.0 3.5 1.7 2.2 0.30 3.0 1.0 - 18Barium 36 20 19 18 140 160 20 38 45 36 34 47,000 50 - 1,000BerylliumNA NA NA NA NA NA NA NA NA NA <0.30470 ND - 2.0CadmiumNA NA NA NA NA NA NA NA NA NA <0.1220 1.0 - 10**CalciumNA NA NA NA NA NA NA NA NA NA180 NE 100 - 280,000*Chromium (total)NA NA NA NA NA NA NA NA NA NA13 NE 7.0 - 300Chromium (VI) 0.78 1.3<0.16 <0.160.35 J 0.73<0.160.57 0.32 1.1<5.76.5 NSCobaltNA NA NA NA NA NA NA NA NA NA1.6 70 ND - 50Copper 33 30 30 25 49 28 28 44 21 28 30 9,300 3.0 - 100IronNA NA NA NA NA NA NA NA NA NA13,000 160,000 100 - > 100,000*Lead 12 4.5 5.6 6.8 3.0 4.6 6.1 5.3 3.9 6.2 5.3 800 ND - 50Magnesium 650 400 660 550 9,200 8,500 460 390 650 650 210 NE 50 - 50,000*Manganese 670 300 120 95 400 290 45 240 34 47 82 5,600 8 - 3,394**MolybdenumNA NA NA NA NA NA NA NA NA NA <0.981,200 NSNickelNA NA NA NA NA NA NA NA NA NA2.2 4,700 ND - 150PotassiumNA NA NA NA NA NA NA NA NA NA240 NE 50 - 37,000*SeleniumNA NA NA NA NA NA NA NA NA NA <0.491,200 <0.1 - 0.8SilverNA NA NA NA NA NA NA NA NA NA <0.491,200 ND - 5.0**SodiumNA NA NA NA NA NA NA NA NA NA <98NE <500 - 50,000*StrontiumNA NA NA NA NA NA NA NA NA NA2.3 140,000 ND - 300ThalliumNA NA NA NA NA NA NA NA NA NA <0.252.3 NSTinNA NA NA NA NA NA NA NA NA NA <1.5140,000 <0.1 - 10*TitaniumNA NA NA NA NA NA NA NA NA NA44 NE 3,000 - 7,000VanadiumNA NA NA NA NA NA NA NA NA NA35 1,200 15 - 300YttriumNA NA NA NA NA NA NA NA NA NA3.8 NE <10 - 50ZincNA NA NA NA NA NA NA NA NA NA26 70,000 25 - 124Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022.2) Range values of background metals for North Carolina soils taken from Elements in North American Soils by Dragun and Chekiri, 2005.3) Site-specific background metals were collected near the front office on the western portion of the Site by Science and Ecosystem Support Division (SESD) in April 2013. * Range values reference Eastern U.S. Soils** Range values reference Southeastern U.S. SoilsSoil samples DW01 through DW08 were collected in April 2013 by SESD and soil samples SB-1 through SB-5 were collected by HDR Engineering, Inc. in May 2018. Soil concentrations are reported in milligrams per kilogram (mg/kg).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the Industrial/Commercial PSRGs and background values in the case of metals. SVOCs = semi-volatile organic compounds; ft bgs= feet below ground surface; NA = not analyzed; NS = not specified; NE = not established; -- = not applicable; ND = non detectJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. M1 = Matrix spike exceeded the quality control lmiits, however the batch was accepted based on laboratory control sample recovery.Q-2 = Analyte concentration high in continuing calibration verification standard.QM-1 = Matrix Spike Recovery less than method control limits.QM-2 = Matrix Spike Recovery greater than method control limits.QM-3 = Matrix Spike Precision outside method control limits.Regional Background Metals in Soil (2)SB-15/7/2018 5/7/2018 5/7/2018 5/7/2018 5/7/2018mg/kgSoutheastern portion of the SiteIndustrial/ Commercial PSRGs (1)Screening Criteria SB-2 SB-3 SB-4 SB-5https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Mecklenburg County ‐ MEC/MEC‐003 Durable Wood/EMP/Data Tables_04.11.22Table 1 (Page 2 of 2)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate5/12/1982 9/23/1982 4/12/1983 9/26/1983 1/3/1984 4/25/1984 10/18/1984 7/25/1985 10/30/1985 3/26/1986 7/2/1986 10/9/1986Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA <1.0 <1.0 <1.011.66.9ChloroformNA NA NA NA NA NA NA NA NA <1.0 <1.0 <1.070 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA <1.0 <1.0 <1.0600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA6.8 BGNDB NDB 5 760 4,000TolueneNA NA NA NA NA NA NA NA NA <1.0 <1.0 <1.0600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA NA50077320SVOCs (8270E)AnthraceneNA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEBenzoic AcidNA NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA NA NA NA NA NA NA NA NA NA NA700 NE NEDibenzofuranNA NA NA NA NA NA NA NA NA NA NA NANE NE NEFluoreneNA NA NA NA NA NA NA NA NA NA NA NA300 NE NEIsophoroneNA NA NA NA NA NA NA NA NA NA NA NA40 NE NE2-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA30 NE NENaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA64.620PentachlorophenolNA NA NA NA NA NA NA NA NA <5.0 <5.0 <10.00.3 NE NEPhenanthreneNA NA NA NA NA NA NA NA NA NA NA NA200 NE NEPhenolNA NA NA NA NA NA NA NA NA <1.0 <1.0 <2.030 NE NEbis(2-Ethylhexyl)phthalateNA NA NA NA NA NA NA NA NA NA NA NA3NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<10.0 <5.0 <5.0 NA <5.0 NA NA <25.0 <10.0 <50.0 <5.0 <50.01NENEBarium<50.0 <80 <80 NA <80 NA NA NA <100 NA NA NA700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride6,500 32,000 17,000NA15,900NA NA NA15,000NA NA NA250,000 NE NEChromium (Total)<13.0 <10.0 <10.0 NA <10.0 NA NA <25.0 <10.0 <50.0 <30 <50.010 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA NA NA NA NA NA NA NA NA NA NA NA1NENECopperNA NA NA NA NA NA NA NA NA <100 <20.0 <1001,000 NE NEFluoride130<100 <200 NA130NA NA NA <100 NA NA NA2,000 NE NEIron430 4,10070NA370NA NA NA120NA NA NA300 NE NELead<25.080<10.0 NA <10.0 NA NA NA <30 NA NA NA15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese140 1,680 410NA170NA NA NA370NA NA NA50 NE NENickel<25.0<20.0NANANANANANANANANANA100 NE NENitrate5,180 8,880 5,730NA6,010NA NA NA7,500NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA <0.20.3 0.3NA NA NA NA NANE NE NESilverNA NA <10.0 <25.0 <10.0 <25.0 <25.0 NA <50.0 NA NA NA20 NE NESodium 17,000 24,000 19,000NA21,800NA NA NA NA NA NA NANE NE NESulfate 3,400 2,400<1,000NA2,060NA NA NA<1,000NA NA NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria Upgradient; located just behind officeMW-ANC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 1 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate1/15/1987 5/21/1987 6/15/1987 10/16/1987 2/4/1988 5/25/1988 7/13/1988 11/3/1988 3/101989 5/24/1989 2/7/1990 7/3/1990 1/30/1991 7/2/1991Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA <10.0140 B<10.048 B 35<10.0 NA NA <10 <10.0 <106,000 NE NEBenzene<1.0 NA <10.0 <10.0 <5.0 <5.0 <5.0 <5.0 <5.0 <52.15 J<5 <5.0 <511.66.9Chloroform<1.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA NA <5 <5.0 <570 0.81 3.6Ethylbenzene<1.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5 <5.00 <5 <5.0 <5600 3.5 15Methylene Chloride10 B<10.0 <10.05.0 JB 10 B<5.02 JB<10.0 <10.0 <10 <10.01 JB 3 JB<105 760 4,000Toluene<1.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5 <5.00 <5 <5.0 <5600 3,800 16,000Total XylenesNA <10.0 NA <10.0 <5.0 NA NA NA <5.0 <5 <5.00 <5 NA <550077320SVOCs (8270E)AnthraceneNA NA NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <10.0 <102,000 NE NEBenzoic AcidNA NA NA <20.0 <100 <100 <100 <50.0 <50.0 <10 <100 <100 <100 <10030,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <10.0 <10700 NE NEDibenzofuranNA NA NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <10.0 <10NE NE NEFluoreneNA NA NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <10.0 <10300 NE NEIsophoroneNA NA NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <10.0 <1040 NE NE2-MethylnaphthaleneNA NA NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <10.0 <1030 NE NENaphthaleneNA NA NA <20.0 <10.0 <20.0 <20.0 NA <10.0 <10 <102 J<10.0 <1064.620Pentachlorophenol2.4 J<50.0 NA <20.0 <20.0 <100 <100 <50.0 <50.0 <20 <20 <20 <20.0 <200.3 NE NEPhenanthreneNA NA NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <20.0 <10200 NE NEPhenol<1.051NA <20.0 <10.0 <20.0 <20.0 <10.0 <10.0 <10 <10 <10 <10.0 <1030 NE NEbis(2-Ethylhexyl)phthalateNA NA NA <20.03 J<20.0 <20.0 <10.0 <10.0 <101 JB<10<10.0<103NENEMetals (6020B/7470A)AluminumNA NA NA73 265 112 1,490 803 385NA NA NA NA NANE NE NEArsenicNA <5.0 NA <2.3 <1.5 <1.52.8<1.6 <2.4 <1.2 NA <10 <3.0 <5.01NENEBariumNA NA NA85 90 110 102 102 89.7 B 93.9 BNA100 86.6 B 89.7 B 700 NE NECalciumNA NA NA763 749 1,110 794 774 889 BNA NA NA NA711 B NE NE NEChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)NA<30NANANANANANANANANANANANA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA NA NA5.8131214107.3 B<3.3 NA <50 <7.0 <6.01NENECopperNA50NA11<20.020 19 30 11.6 B<7.3 NA NA13.7 B 14.8 B 1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIronNA NA NA11 218 261,910 708 448 552NA NA1,750 585300 NE NELeadNA <5.0 NA <1.0 <2.5 <2.3 <2.31.1 1.8 B<0.90 NA NA <3.09.2 15 NE NEMagnesiumNA NA NA1,880 1,780 2,180 2,150 2,030 1,930 BNA NA NA NA1,900 B NE NE NEManganeseNA NA NA465 425 421 557 465 444 350NA NA259 30350 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA <3,600 <2,4003,120<2,300 <2,360 <4,910 NA NA NA NA3,140 B NE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodiumNA NA NA17,200 17,900 19,300 20,100 20,600 19,200NA NA NA NA17,700NE NE NESulfateNA NA NA NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LMW-AScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Upgradient; located just behind officeS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 2 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate5/12/1982 9/23/1982 4/12/1983 9/12/1983 9/26/1983 1/3/1984 1/17/1984 4/25/1984 10/18/1984 7/25/1985 10/30/1985 3/26/1986 7/2/1986 10/9/1986 1/15/1987 5/21/1987 6/15/1987Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA <1.0 <1.0 <1.0 <1.0 NA <10.011.66.9ChloroformNA NA NA NA NA NA NA NA NA NA NA <1.0 <1.0 <1.02.6 B<10.0 <10.070 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA1.9 1.5<1.0 <1.0 <10.0 <10.0600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA NA1.1 BG 1.0 BG NDB5.78 B<10.0 <10.05 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA NA <1.0 <1.0 <1.0 <1.0 <10.0 <10.0600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <10.0 NA500 77 320SVOCs (8270E)AnthraceneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEBenzoic AcidNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA700 NE NEDibenzofuranNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEFluoreneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA300 NE NEIsophoroneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA40 NE NE2-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA30 NE NENaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA64.620PentachlorophenolNA NA NA NA NA NA NA NA NA NA NA <5.0 <5.0 <5.0 <5.0 <50.0 NA0.3 NE NEPhenanthreneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA200 NE NEPhenolNA NA NA NA NA NA NA NA NA NA NA <1.0 <2.0 <1.0 <1.036NA30 NE NEbis(2-Ethylhexyl)phthalateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA3NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<10.0 <5.0 <5.0 NA NA <5.0 NA NA NA <25.0 <10.0 <50.0 <5.0 <50.0 NA <5.0 NA1NENEBarium<50.0 <80 <80 NA NA <80 NA NA NA NA200NA NA NA NA NA NA700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride7,000 54,000 12,100NA NA10,900NA NA NA NA8,000NA NA NA NA NA NA250,000 NE NEChromium (Total)<13.0 <10.0 <10.0 NA NA <10.0 NA NA NA <25.0 <10.0 <50.0 <30 <50.0 NA <30 NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1NENECopperNA NA NA NA NA NA NA NA NA NA NA <100 <20.0 <100 NA <20.0 NA1,000 NE NEFluoride260 280 300NA NA120NA NA NA NA270NA NA NA NA NA NA2,000 NE NEIron350 9,400 580NA NA5,800NA NA NA NA4,290NA NA NA NA NA NA300 NE NELead<25.030<10.0 NA NA <10.0 NA NA NA NA <30 NA NA NA NA <5.0 NA15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese840 15,000 11,400NA NA7,500NA NA NA NA6,250NA NA NA NA NA NA50 NE NENickel<25.0<20.0NANANANANANANANANANANANANANANA100 NE NENitrate30 580<50.0 NA NA80NA NA NA NA1,000NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA0.2<0.20.3NA NA NA NA NA NA NA NANE NE NESilverNA NA <10.0 NA <25.0 <10.0 NA <25.0 <25.0 NA <50.0 NA NA NA NA NA NA20 NE NESodium 2,700 5,000 2,800NANA5,400NA NA NA NA NA NA NA NA NA NA NANE NE NESulfate 2,900<500 NA <1,000 NA5,760NA NA NA NA <1,000 NA NA NA NA NA NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LNC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Closed Effluent Lagoon (Former SWMU-27); downgradient; located just below landfillMW-B4-inch PVC; 39 ft bgs; 5 foot screenScreening Criteria S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 3 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate5/12/1982 1/23/1982 9/23/1982 4/12/1983 9/26/1983 1/3/1984 1/17/1984 4/25/1984 10/18/1984 7/25/1985 10/30/1985 5/21/1987 6/15/1987Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA4 JBNA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA NA <10.0 <5.0 NA11.66.9ChloroformNA NA NA NA NA NA NA NA NA NA NA <10.0 <10.0 <5.0 NA70 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA <10.0 <10.01 JNA600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA NA <10.0 <10.03 JBNA5 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA NA <10.0 <10.0 <5.0 NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA <10.0 NA NA NA50077320SVOCs (8270E)AnthraceneNA NA NA NA NA NA NA NA NA NA NA NA NA <20 <102,000 NE NEBenzoic AcidNA NA NA NA NA NA NA NA NA NA NA NA NA <200 <10030,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA NA NA NA NA NA NA NA NA NA NA NA <20 <10700 NE NEDibenzofuranNA NA NA NA NA NA NA NA NA NA NA NA NA <20 <10NE NE NEFluoreneNA NA NA NA NA NA NA NA NA NA NA NA NA <20 <10300 NE NEIsophoroneNA NA NA NA NA NA NA NA NA NA NA NA NA <20 <1040 NE NE2-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA NA3125 30 NE NENaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA NA9 J6 J64.620PentachlorophenolNA NA NA NA NA NA NA NA NA NA NA <50.0 NA210 2 J0.3 NE NEPhenanthreneNA NA NA NA NA NA NA NA NA NA NA NA NA <20 <10200 NE NEPhenolNA NA NA NA NA NA NA NA NA NA NA54NA <20 <1030 NE NEbis(2-Ethylhexyl)phthalateNA NA NA NA NA NA NA NA NA NA NA NA NA <20 <103NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<10.0 <5.0 NA <5.0 NA <5.0 NA NA NA <25.0 <10.0 <5.0 NA <3.0 NA1NENEBarium<50.0 NA <30 <80 NA <80 NA NA NA NA <100 NA NA138 BNA700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride7,000NA14,000 9,100NA11,900NA NA NA NA6,000NA NA NA NA250,000 NE NEChromium (Total)<13.0 NA <10.0 <10.0 NA <10.0 NA NA NA <25.0 <10.0 <30 NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA NA NA NA NA NA NA NA NA NA NA NA NA8.3 BNA1NENECopperNA NA NA NA NA NA NA NA NA NA NA <20.0 NA <3.0 NA1,000 NE NEFluoride200 250NA200NA180NA NA NA NA110NA NA NA NA2,000 NE NEIron12,500NA2,300 1,400NA750NA NA NA NA1,170NA NA1,240NA300 NE NELead<25.0 NA90<10.0 NA <10.0 NA NA NA NA <30 <5.0 NA <3.0 NA15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese16,200NA340 4,100NA2,160NA NA NA NA3,200NA NA4,200NA50 NE NENickel<25.0NA<20.0NANANANANANANANANANANANA100 NE NENitrate20NA90<50.0 NA80NA NA NA NA1,000NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA <0.2 <0.2 <0.2 NA NA NA NA NA NANE NE NESilverNA NA NA <10.0 <25.0 <10.0 NA <25.0 <25.0 NA <50.0 NA NA NA NA20 NE NESodium 20,000NA9,000 6,400NA8,200NA NA NA NA NA NA NA NANANE NE NESulfate 1,500NA800<1,000 NA5,350NA NA NA NA <1,000 NA NA NANA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA NANA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA NA NANA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)1/30/1991*MW-CDowngradient; located north of landfill4-inch PVC; 42 ft bgs; 5 foot screenS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 4 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate1/30/19917/29/1993 2/1994 8/15/1994 2/21/1995Well DetailsUnitsVOCs (8260D)AcetoneNA<10NANA<10.0NA<10.0NA<10.0NANANANANA6,000 NE NEBenzeneNA <5 NA NA <5.0 NA <5.0 NA <5.0 NA NA NA NA <4.011.66.9ChloroformNA <5 NA NA <5.0 NA <5.0 NA <5.0 NA NA NA NA NA70 0.81 3.6EthylbenzeneNA <5 NA NA <5.0 NA <5.0 NA <5.0 NA NA NA NA <4.0600 3.5 15Methylene ChlorideNA <10 NA NA3 JBNA <10.0 NA2 JBNA NA NA NA NA5 760 4,000TolueneNA <5 NA NA <5.0 NA <5.0 NA <5.0 NA NA <5.0 <1 <4.0600 3,800 16,000Total XylenesNA1 JNA NA1 JNA <5.0 NA <5.0 NA NA <5.0 <3 <12.0500 77 320SVOCs (8270E)Anthracene<10 <10 <10 <50 <10 <30 <10 <100 <10 <10 <20.0 NA NA NA2,000 NE NEBenzoic Acid<100 <100 <100 <500 <100 <300 <100 <1,000 <100 <100 <100 NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalate<10 <10 <10 <50 <10 <301 J<100 <10 <10 <20.0 NA NA NA700 NE NEDibenzofuran<10 <10 <10 <50 <10 <30 <10 <100 <10 <10 <20.0 NA NA NANE NE NEFluorene<10 <10 <10 <50 <10 <30 <10 <100 <10 <10 <20.0 <100 <10 <10.0300 NE NEIsophorone<10 <10 <10 <50 <10 <30 <10 <100 <10 <10 <20.0 NA NA NA40 NE NE2-Methylnaphthalene25 15 12 14 J 6 J 7 J 19 18 JD<10 <10 <20.0 <100 <10 <10.030 NE NENaphthalene6 J4 J 3 J<504 J4 J3 J<100 <10 <10 <20.0 <100 <10 <10.064.620Pentachlorophenol2 J 250 E 300 E 260 D 440 E 230 1,000 E 880 D 220 E 110 700 56<106380.3 NE NEPhenanthrene<10 <10 <10 <50 <10 <30 <10 <100 <10 <10 <20.0 NA NA NA200 NE NEPhenol<10 <10 <10 <50 <10 <30 <10 <100 <10 <10 <20.0 NA NA NA30 NE NEbis(2-Ethylhexyl)phthalate<10 <10 <10 <50 <10 <30 <10 <100 <101 J<20.0 <100 <19 <10.03NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenicNA <5.0 NA NA4.78NA <4.0 NA <3.0 NA <100 <5.0 <5 <20.01NENEBariumNA161 BNA NA113 BNA136 BNA136 BNA170NA200 150 700 NE NECalciumNA34,400NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChlorideNA NA NA NA21,700NA NA NA20,200NA30,000<1,00025,000 19,00 250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA8.2 BNA NA <7.0 NA <7.0 NA <9.0 NA <100 <50.0 <10 <10.01NENECopperNA4.6 BNA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIronNA930NA NA2,770NA507NA2,790NA480 1,8502201,920300 NE NELeadNA3.7NA NA <2.0 NA <2.0 NA <2.0 NA <10.0 <50.0 <50 <20.015 NE NEMagnesiumNA12,200NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganeseNA4,400NA NA3,450NA3,380NA3,290NA3,270 2,850 2,870 2,70050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA1,690 BNA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodiumNA10,700NA NA9,900NA9,870NA10,800NA14,480 8,500 10,400 10,200 NE NE NESulfateNANANA NA2,030NANANA3,980NA179<5,0009,000<5,000250,000 NE NEVanadium NANANA NANANANANANANANA NA NA NA7NENEZincNANANA NANANANANANANANA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.7/2/1991* 2/6/1992* 7/9/1992*µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgradient; located north of landfillMW-C4-inch PVC; 42 ft bgs; 5 foot screen2/11/1993*S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 5 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate3/5/1996 8/7/1996 2/26/1997 8/21/1997 3/5/1998 8/29/1998 3/2/1999 8/18/1999 3/1/2000 8/14/2000 3/7/2001 8/22/2001 2/25/2002Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA11.66.9ChloroformNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA70 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA5 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA50077320SVOCs (8270E)Anthracene<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.12,000 NE NEBenzoic Acid<50 <500 <100 NA NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalate<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.1700 NE NEDibenzofuran<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.1NE NE NEFluorene<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.1300 NE NEIsophorone<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.140 NE NE2-Methylnaphthalene2.9 J<100 <10.0 <10.023.0 24.9<10.0 <10.0 <10.0 <5.023<5.0 <5.1 <5.05130 NE NENaphthalene<10 <100 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <5.05.4<5.0 <5.1 <5.09.164.620Pentachlorophenol830 E 1,600 D 738 1,030 1,320 372 1,440<10.0376 370 1,900 420 740<25.03,5000.3 NE NEPhenanthrene<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.1200 NE NEPhenol<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.130 NE NEbis(2-Ethylhexyl)phthalate<10 <100 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.13NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<10.0 NA <50.0 <50.0 <50.0 <20.0 <50.0 <5 <5 <5.0 <5.0 <5.0 <5.08.8<5.01NENEBarium163NA169 165 132 127 141 161 148 150 150 180 150 150 150 700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride19,000NA23,300 24,900 23,900 27,600 41,800 22,000 25,700 27,800 26,000 26,000 27,000 26,000 27,000 250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt<5.0 NA <10.0 <10.0 <10.0 <10.0 <10.0 <25 <25 <25 <25 <25 <25 <25.0 <251NENECopperNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron553NA2,520 1,770 3,030 1,730 1,340 3,500 583 2,500 2,600 3,600 2,800 2,500 3,300300 NE NELead<10.0 NA <50.0 <20.0 <20.0 <20.0 <20.0 <3 <3 <3.0 <3.0 <3.0 <3.0 <3.0 <3.015 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese2,680NA2,890 2,520 1,730 1,790 1,800 1,880 1,730 1,600 1,600 1,800 1,500 1,300 1,40050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 9,440NA15,700 10,800 9,820 9,160 10,600 13,700 12,000 10,000 11,000 12,000 12,000 10,000 10,000 NE NE NESulfate 3,000NA<1,0001,040<1,000 <1,000 <1,000 <1,000 <1,000 <1,0001,000<1,0001,700 1,900<1,000250,000 NE NEVanadium NANANA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNANANA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.8/16/1995*µg/LNon-Residential GWSLs(2)Downgradient; located north of landfillMW-C4-inch PVC; 42 ft bgs; 5 foot screenScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 6 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate9/5/2002 3/10/2003 9/3/2003 3/25/2004 9/30/2004 3/25/2005 10/4/2005 4/20/2006 1025/2006 6/12/2007 12/12/2007 7/9/2008 2/10/2009 1/25/2012Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA11.66.9ChloroformNA NA NA NA NA NA NA NA NA NA NA NA NA NA70 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA5 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA NA NA NA500 77 320SVOCs (8270E)Anthracene<5.0 <5.0 <5.2 NA NA NA <5.4 <5.3 <5.0 <5.0 <5.0 <5.0 <5.0 <10.02,000 NE NEBenzoic AcidNA NA NA NA NA NA NA NA NA NA NA NA NA <50.030,000 NE NECaprolactamNA NA NA NA NA NA <27 <26 <25.028 33<25.0 <25.0 NA4,000 NE NEDi-n-butylphthalate<5.0 <5.0 <5.2 NA NA NA <5.4 <5.3 <5.0 <5.0 <5.0 <5.0 <5.0 <10.0700 NE NEDibenzofuran<5.0 <5.0 <5.2 NA NA NA <5.4 <5.3 <5.0 <5.0 <5.0 <5.0 <5.0 <10.0NE NE NEFluorene<5.0 <5.0 <5.2 NA NA NA <5.4 <5.3 <5.0 <5.0 <5.0 <5.0 <5.0 <10.0300 NE NEIsophorone<5.0 <5.0 <5.2 NA NA NA <5.4 <5..3 <5.0 <5.0 <5.0 <5.0 <5.0 <10.040 NE NE2-Methylnaphthalene<5.0 <5.027<5.027<5.023<5.326<5.031<5.052 85.230 NE NENaphthalene<5.0 <5.0 <5.2 <5.0 <5.1 <5.0 <5.4 <5.3 <5.0 <5.06.0<5.08.714364.620Pentachlorophenol230 1,600 1,000 74 1,100<25860<26790 150 1,300 47 1,800 2,6400.3 NE NEPhenanthrene<5.0 <5.0 <5.2 NA NA NA <5.4 <5.3 <5.0 <5.0 <5.0 <5.0 <5.0 <10.0200 NE NEPhenol<5.0 <5.0 <5.2 NA NA NA <5.4 <5.3 <5.0 <5.0 <5.0 <5.0 <5.0 <10.030 NE NEbis(2-Ethylhexyl)phthalate<5.0 <5.0 <5.2 NA NA NA <5.4 <5.3 <5.0 <5.0 <5.0 <5.0 <5.0 <6.03NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <10.0 <10.0 NA1NENEBarium140 150 140NA NA NA NA NA NA NA NA NA NA NA700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride25,000 25,000 23,000NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt<25.0 <25.0 <25.0 <25.0 <25 <25 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 NA1NENECopperNA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron3,000 4,700 3,200NA NA NA NA NA NA NA NA NA NA NA300 NE NELead<3.0 <3.0 <3.0 NA NA NA NA NA NA NA NA NA NA NA15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese1,300 1,400 1,300 1,200 1,300 1,200 450 1,100 67 960 1,000 1,000 970NA50 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 12,000 12,000 15,000NA NA NANA NA NA NA NA NA NA NANE NE NESulfate 1,900<1,000 <1,000NA NA NANA NA NA NA NA NA NA NA250,000 NE NEVanadium NA NA NANA NA NANA NA NA NA NA NA NA NA7NENEZincNA NA NANA NA NANA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LDowngradient; located north of landfillMW-C4-inch PVC; 42 ft bgs; 5 foot screenScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 7 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate5/12/1982 9/23/1982 4/12/1983 9/26/1983 1/3/1984 1/17/1984 4/25/1984 10/18/1984 7/25/1985 10/30/1985 5/21/1987 6/15/1987 6/19/2013Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA <10.0 NA11.66.9ChloroformNA NA NA NA NA NA NA NA NA NA <10.0 <10.0 NA70 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA <10.0 <10.0 NA600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA <10.0 <10.0 NA5 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA <10.0 <10.0 NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA <10.0 NA NA500 77 320SVOCs (8270E)AnthraceneNA NA NA NA NA NA NA NA NA NA NA NA <2602,000 NE NEBenzoic AcidNA NA NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA5,8004,000 NE NEDi-n-butylphthalateNA NA NA NA NA NA NA NA NA NA NA NA <260700 NE NEDibenzofuranNA NA NA NA NA NA NA NA NA NA NA NA <260NE NE NEFluoreneNA NA NA NA NA NA NA NA NA NA NA NA <260300 NE NEIsophoroneNA NA NA NA NA NA NA NA NA NA NA NA <26040 NE NE2-MethylnaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA <26030 NE NENaphthaleneNA NA NA NA NA NA NA NA NA NA NA NA <26064.620PentachlorophenolNA NA NA NA NA NA NA NA NA NA <50.0 NA <1,3000.3 NE NEPhenanthreneNA NA NA NA NA NA NA NA NA NA NA NA <260200 NE NEPhenolNA NA NA NA NA NA NA NA NA NA60NA <26030 NE NEbis(2-Ethylhexyl)phthalateNA NA NA NA NA NA NA NA NA NA NA NA <2603NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA <200NE NE NEArsenic<10.0 <5.0 <5.0 NA <5.0 NA NA NA <25.0 <10.0 <5.0 NA <10.01NENEBarium<50.0 <80 <80 NA <80 NA NA NA NA <100 NA NA44 700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride8,000 11,000 5,300NA8,900NA NA NA NA2,000NA NA NA250,000 NE NEChromium (Total)<13.0 <10.0 <10.0 NA <10.0 NA NA NA <25.0 <10.0 <30 NA <5.010 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA <10.0NE NE NECobaltNA NA NA NA NA NA NA NA NA NA NA NA NA1NENECopperNA NA NA NA NA NA NA NA NA NA <20.0 NA <5.01,000 NE NEFluoride70<100 <200 NA130NA NA NA NA <100 NA NA NA2,000 NE NEIron1,300 3,600 630NA1,270NA NA NA NA90NA NA <100300 NE NELead<25.050<10.0 NA <10.0 NA NA NA NA <30 <5.0 NA10 15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA <5,000NE NE NEManganese4,050 170 120NA140NA NA NA NA80NA NA8850 NE NENickel<25.0<20.0NANANANANANANANANANA<40100 NE NENitrate720 860 900NA970NA NA NA NA1,250NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA <0.2 <0.2 <0.2 NA NA NA NA NANE NE NESilverNA NA <10.0 <25.0 <10.0 NA <25.0 <25.0 NA <50.0 NA NA <5.020 NE NESodium 2,300 6,000 1,200NA3,000NA NA NA NA NA NA NA NANE NE NESulfate<1,000 <500 <1,000 NA5,760NA NA NA NA <1,000 NA NA NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA21 1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LDowngradient; located east of landfillMW-D4-inch PVC; 43 ft bgs; 11 foot screenScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 8 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate10/30/1985 3/26/1986 7/2/1986 10/9/1986 1/15/1987 4/20/1987 5/21/1987 6/15/1987 10/16/1987 11/20/1987 2/4/1988Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA22NA NA <10.0 NA12 B<10.0 NA7 JBNA6,000 NE NEBenzene<1.0 <1.0 <1.0 <1.0 <1.0 <10.0 NA <10.0 <10.0 NA <5.0 <5.0 NA2 JNA11.66.9Chloroform<1.0 <1.0 <1.0 <1.02.6 B<10.0 <10.0 <10.0 <10.0 NA <5.0 <5.0 NA <5.0 NA70 0.81 3.6Ethylbenzene<1.0 <1.0 <1.01.0<1.0 <10.0 <10.0 <10.0 <10.0 NA <5.0 <5.0 NA <5.0 NA600 3.5 15Methylene Chloride<1.01.6 BG NDB26 BG 7.7 B<10.0 <10.0 <10.05.0 JBNA15 B<5.0 NA3 JBNA5 760 4,000Toluene<1.02.5 2.5 2.7 1.2<10.0 <10.0 <10.0 <10.0 NA <5.0 <5.0 NA2 JNA600 3,800 16,000Total XylenesNA NA NA NA NA <10.0 <10.0 NA <10.0 NA2 J 2 JNA5 JNA50077320SVOCs (8270E)AnthraceneNA NA NA NA NA <10.0 NA NA <20.0 <20.0 <10.0 <20 <20 <20 <222,000 NE NEBenzoic AcidNA NA NA NA NA <10.0 NA NA <20.0 <20.0 <100 <100 <100 <1005 J 30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA NA NA NA <10.0 NA NA <20.0 <20.0 <10.05 J 3 JB<20 <22700 NE NEDibenzofuranNA NA NA NA NA <10.0 NA NA <20.0 <20.0 <10.03 J<205 J 3 J NE NE NEFluoreneNA NA NA NA NA <10.0 NA NA <20.0 <20.03 J5 J3 J8 J4 J 300 NE NEIsophoroneNA NA NA NA NA <10.0 NA NA <20.0 <20.0 <10.09 J 9 J 10 J 10 J 40 NE NE2-MethylnaphthaleneNA NA NA NA NA19NA NA120 120 120 482587 9830 NE NENaphthaleneNA NA NA NA NA <10.0 NA NA21212112 J5 J 382364.620Pentachlorophenol1,390 160 62 19 37 67<50.0 NA26 26 36 43 J 78 J 49 J 38 J0.3 NE NEPhenanthreneNA NA NA NA NA <10.0 NA NA <20.0 <20.07 J5 J3 J9 J4 J 200 NE NEPhenol<1.0 <10.0 <1.0 <1.0 <1.0 <10.081NA <20.0 <20.0 <10.0 <20 <20 <20 <2230 NE NEbis(2-Ethylhexyl)phthalateNA NA NA NA NA33NA NA <20.0 <20.0 <10.0 <20 <203 J 3 J 3 NE NEMetals (6020B/7470A)AluminumNA NA NA NA NA86NA NA128NA90 143NA71NANE NE NEArsenic<10.0 <50.0 <5.0 <50.0 NA2<5.0 NA <2.3 NA <1.5606**NA2.4NA1NENEBarium300NA NA NA NA324NA NA337NA308 318NA321NA700 NE NECalciumNA NA NA NA NA1,410NA NA2,550NA930 1,180NA2,540NANE NE NEChloride60,000NA NA NA NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)<10.0 <50.0 <30 <50.0 NA <7.0 <30 NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA NA NA NA NA1,180NA NA158NA185 180NA150NA1NENECopperNA <100 <20.0 <100 NA37<20.0 NA34NA <20.041NA <16 NA1,000 NE NEFluoride<100 NA NA NA NA <100 NA NA NA NA NA NA NA NA NA2,000 NE NEIron130NA NA NA NA288NA NA181NA127 195NA127NA300 NE NELead<30NANANANA2.57<5.0 NA1.4NA <2.558**NA <2.3 NA15 NE NEMagnesiumNA NA NA NA NA2,970NA NA3,160NA2,090 2,560NA2,920NANE NE NEManganese23,800NA NA NA NA2,690NA NA25,100NA24,900 24,900NA21,600NA50 NE NENickelNANANANANA<15.0NANANANANANANANANA100 NE NENitrate1,000NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA1,430NA NA <3,600 NA <2,400 <2,300 NA3,320NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilver<50.0NANANANA<7NANANANANANANANANA20 NE NESodiumNA NA NA NA NA22,700NA NA17,000NA18,300 20,900NA18,600NANE NE NESulfate<1,000 NA NA NA NA NA NA NA NA NA NA NANANANA250,000 NE NEVanadium NA NA NA NA NA <8.0 NA NA NA NA NA NANANANA7NENEZincNA NA NA NA NA <2.0 NA NA NA NA NA NANANANA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.7/13/1988*µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgradient; located just north of landfillMW-E4-inch PVC; 45 ft bgs; 10 foot screen5/25/1988*S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 9 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDateWell DetailsUnitsVOCs (8260D)Acetone12NA10 BNA NA NA NA NA5 JBNA <10.0 NA6 JNA6,000 NE NEBenzene<5.0 NA <5.0 NA <5 NA <5 NA <5 NA <5.0 NA <5 NA11.66.9Chloroform<5.0 NA <5.0 NA NA NA NA NA <5 NA <5.0 NA <5 NA70 0.81 3.6Ethylbenzene<5.0 NA<5.0NA <5 NA <5 NA <5 NA <5.0 NA <5 NA600 3.5 15Methylene Chloride2 JNA2 JBNA <10 NA <10 NA2 JBNA2 JBNA1 JBNA5 760 4,000Toluene<5.0 NA <5.0 NA <5 NA <5 NA <5 NA <5.0 NA <5 NA600 3,800 16,000Total XylenesNA NA4 JNA <5 NA4 JNA3 JNA NA NA2 JNA500 77 320SVOCs (8270E)Anthracene2 J<10 <10 <104 J<10 <10 <10 <10 <10 <101 J<10 <102,000 NE NEBenzoic Acid6 J<5010 J<503 J<100 <100 <100 <50 <50 <100 <100 <100 <10030,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalate<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10700 NE NEDibenzofuran4 J<104 J 3 J<10 <103 J2 J4 J4 J4 J3 J2 J3 J NE NE NEFluorene4 J2 J5 J3 J2 J2 J4 J3 J8 J6 J6 J5 J3 J4 J 300 NE NEIsophorone8 J 6 J<10 <105 J2 J7 J7 J9 J8 J9 J7 J6 J10 40 NE NE2-Methylnaphthalene120 59 130 1106 J 5 J71 81 84 70 89 81 49 6330 NE NENaphthalene291330253 J<10221929242522132064.620Pentachlorophenol55 53 38 J 19 J 49 23 41<20120 44 J 33 77 18 J 910.3 NE NEPhenanthrene7 J4 J8 J5 J<102 J7 J4 J7 J6 J5 J6 J3 J5 J 200 NE NEPhenol<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <1030 NE NEbis(2-Ethylhexyl)phthalate11 B<10 <103 J 3 J<106 J 6 JB2 J 2 J<103 J 2 J<103NENEMetals (6020B/7470A)Aluminum217NA184 BNA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic2.4NA <2.4 NA1.8 BNA3.2 BNA<10NA<3.0NA<5.0NA1NENEBarium361NA356NA261NA255NA400NA311NA344NA700 NE NECalcium1,280NA1,310 BNA NA NA NA NA NA NA NA NA1,520 BNANE NE NEChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt200NA214NA130NA151NA200NA184NA192NA1NENECopper25NA27.1NA <7.3 NA19.0 BNA NA NA10.1 BNA7.8 BNA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron168NA247NA236NA <4.0 NA NA NA232NA407NA300 NE NELead1.8NA <0.40 NA2.0 BNA5.6NA NA NA <3.0 NA6.1NA15 NE NEMagnesium2,780NA2,450 BNA NA NA NA NA NA NA NA NA2,780 BNANE NE NEManganese30,100NA27,100NA21,100NA24,500NA NA NA25,000NA28,300NA50 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassium5,890NA <4,910 NA NA NA NA NA NA NA NA NA1,630 BNANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 23,400NA17,100NA NA NA NA NA NA NANANA19,900NANE NE NESulfateNANANANA NA NA NA NA NA NANANA NA NA250,000 NE NEVanadium NANANANA NA NA NA NA NA NANANA NA NA7NENEZincNANANANA NA NA NA NA NA NANANA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgradient; located just north of landfillMW-E4-inch PVC; 45 ft bgs; 10 foot screen7/3/19902/7/1990 1/30/1991 7/2/199111/3/1988 5/24/19893/10/1989S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 10 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate10/30/1985 3/26/1986 7/2/1986 10/9/1986 1/15/1987 5/21/1987 6/15/1987 10/16/1987 2/4/1988 5/25/1988 7/13/1988Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA <10.026 B<10.0 5 JB 6,000 NE NEBenzene<1.0 <1.0 <1.0 <1.0 <1.0 NA <10.0 <10.0 <5.0 <5.0 <5.011.66.9Chloroform<1.0 <1.0 <1.0 <1.02.6 B<10.0 <10.0 <10.0 <5.0 <5.0 <5.070 0.81 3.6Ethylbenzene<1.0 <1.0 <1.0 <1.0 <1.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.0600 3.5 15Methylene Chloride<1.0NDB 2.1 BG NDB7.6 B<10.0 <10.0 <10.014 B<5.02 J 5 760 4,000Toluene<1.03.7<1.0 <1.0 <1.0 <10.0 <10.0 <10.02 J<5.0 <5.0600 3,800 16,000Total XylenesNA NA NA NA NA <10.0 NA <10.0 <5.0 NA2 J 500 77 320SVOCs (8270E)AnthraceneNA NA NA NA NA NA NA <20.0 <10.0 <20.0 <20.02,000 NE NEBenzoic AcidNA NA NA NA NA NA NA <20.0 <100 <100 <10030,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA NA NA NA NA NA <20.0 <1009 J<20.0700 NE NEDibenzofuranNA NA NA NA NA NA NA <20.0 <10.0 <20.03 J NE NE NEFluoreneNA NA NA NA NA NA NA <20.0 <10.0 <20.0 <20.0300 NE NEIsophoroneNA NA NA NA NA NA NA <20.06 J 5 J<20.040 NE NE2-MethylnaphthaleneNA NA NA NA NA NA NA <20.086<20.06 J 30 NE NENaphthaleneNA NA NA NA NA NA NA <20.02 J<20.0 <20.064.620Pentachlorophenol330 110 80 46 63 94NA43 110 76 J 56 J0.3 NE NEPhenanthreneNA NA NA NA NA NA NA <20.0 <10.0 <20.06 J 200 NE NEPhenol<1.0 <1.0 <1.0 <1.0 <1.0 <65 NA <20.0 <10.0 <20.0 <20.030 NE NEbis(2-Ethylhexyl)phthalateNA NA NA NA NA NA NA6 J 25 44 6 J3NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA486 869 157 104 NE NE NEArsenic<10.0 <50.0 <5.0 <50.0 NA <5.0 NA13 24 4.6 3.61NENEBarium100NA NA NA NA NA NA120 126 133 122 700 NE NECalciumNA NA NA NA NA NA NA6,040 3,890 4,110 5,300 NE NE NEChloride25,000NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)<10.0 <50.0 <30 <50.0 NA <30 NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA NA NA NA NA NA NA23 21 47 321NENECopperNA <100 <20.0 <100 NA <20.0 NA12<20.0 <16 <161,000 NE NEFluoride<100 NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron60NA NA NA NA NA NA535 781152 83 300 NE NELead<30NANANANA<5.0NA5.7 4.0 2.6 2.6 15 NE NEMagnesiumNA NA NA NA NA NA NA2,500 1,980 2,610 2,180 NE NE NEManganese1,480NA NA NA NA NA NA1,180 1,210 2,010 3,20050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA100 NE NENitrate1,000NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA2,700<2,4002,710 3,200 NE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NANE NE NESilver<50.0NANANANANANANANANANA20 NE NESodiumNA NA NA NA NA NA NA12,900 12,800 17,500 16,300 NE NE NESulfate 1,000NA NA NA NA NA NA NA NA NA NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgradient; located just northeast of landfillMW-F4-inch PVC; 87 ft bgs; two 10 foot screensS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 11 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate11/3/1988 9/30/2004 3/25/2005 10/4/2005 4/20/2006 10/25/2006 6/12/2007 12/12/2007 7/9/2008 2/10/2009 1/25/2012Well DetailsUnitsVOCs (8260D)Acetone92NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzene<5.0 NA NA NA NA NA NA NA NA NA NA11.66.9Chloroform<5.0 NA NA NA NA NA NA NA NA NA NA70 0.81 3.6Ethylbenzene<5.0 NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene Chloride1 JNA NA NA NA NA NA NA NA NA NA5 760 4,000Toluene2 JNA NA NA NA NA NA NA NA NA NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA500 77 320SVOCs (8270E)Anthracene<10.0 NA NA <5.4 <5.0 <5.0 <5.0 <5.0 <5.3 <5.0 <10.02,000 NE NEBenzoic Acid3 JNA NA NA NA NA NA NA NA NA <50.030,000 NE NECaprolactamNA NA NA <27 <25.0 <25.0150 64<26 <25.0 NA4,000 NE NEDi-n-butylphthalate<10.0 NA NA <5.4 <5.0 <5.0 <5.0 <5.0 <5.3 <5.0 <10.0700 NE NEDibenzofuran2 JNA NA6.7 5.8 5.3 5.0 5.4<5.36.3<10.0NE NE NEFluorene<10.0 NA NA <5.4 <5.0 <5.0 <5.0 <5.0 <5.3 <5.0 <10.0300 NE NEIsophorone4 JNA NA9.1 6.6<5.0 <5.0 <5.0 <5.3 <5.0 <10.040 NE NE2-Methylnaphthalene16210 180 210 190 180 140 150 140 130 97.030 NE NENaphthalene<10.033304041403337333033.464.620Pentachlorophenol50 1,100 630 320 410 310 440 210 290 270 3680.3 NE NEPhenanthrene<10.0 NA NA8.1 7.5<5.06.3<5.0 <5.38.6<10.0200 NE NEPhenol<10.0 NA NA <5.4 <5.0 <5.0 <5.0 <5.0 <5.3 <5.0 <10.030 NE NEbis(2-Ethylhexyl)phthalate15 BNA NA <5.4 <5.0 <5.0 <5.0 <5.0 <5.3 <5.0 <6.03NENEMetals (6020B/7470A)Aluminum220NA NA NA NA NA NA NA NA NA NANE NE NEArsenic3.0<5.06.0<5.0 <5.06.3<5.0 <5.0 <10.0 <10.0 NA1NENEBarium128NA NA NA NA NA NA NA NA NA NA700 NE NECalcium5,850NA NA NA NA NA NA NA NA NA NANE NE NEChlorideNA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NANE NE NECobalt27 140 170 170 140 180 170 200 190 180NA1NENECopper22NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron220NA NA NA NA NA NA NA NA NA NA300 NE NELead1.5NA NA NA NA NA NA NA NA NA NA15 NE NEMagnesium2,530NA NA NA NA NA NA NA NA NA NANE NE NEManganese1,450 8,700 9,800 10,000 9,100 11,000 10,000 12,000 12,000 11,000NA50 NE NENickelNA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassium<2,360 NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 16,900NA NANA NA NA NA NA NA NA NANE NE NESulfateNANA NANA NA NA NA NA NA NA NA250,000 NE NEVanadium NANA NANA NA NA NA NA NA NA NA7NENEZincNANA NANA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgradient; located just northeast of landfillMW-F4-inch PVC; 87 ft bgs; two 10 foot screensS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 12 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate5/21/1987 6/15/1987 10/16/1987Well DetailsUnitsVOCs (8260D)AcetoneNA NA22 B 29 BNA49NA16 BNA157NA6,000 NE NEBenzeneNA <10.0 <10.0 <5.0 NA <5.0 NA <5.0 NA <5.0 NA11.66.9Chloroform<10.0 <10.0 <10.0 <5.0 NA <5.0 NA <5.0 NA <5.0 NA70 0.81 3.6Ethylbenzene<10.0 <10.0 <10.01 JNA2 JNA5NA3 JNA600 3.5 15Methylene Chloride<10.0 <10.0 <10.022 BNA <5.0 NA2 JBNA <10.0 NA5 760 4,000Toluene<10.0 <10.0 <10.02 JNA2 JNA4 JNA2 JNA600 3,800 16,000Total Xylenes29NA <10.08NA12NA31NA19NA500 77 320SVOCs (8270E)AnthraceneNA NA <20.0 <10 <10 <20 <60 <40 <20 <10 <102,000 NE NEBenzoic AcidNA NA <20.0 <100 <100 <100 <300 <20084 J 9 J 12 J 30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA <20.0 <10 <10 <2010 JB<40 <20 <10 <10700 NE NEDibenzofuranNA NA <20.03 J 2 J<20 <60 <403 J 2 J<10NE NE NEFluoreneNA NA5 J 14 15 21 14 J 19 J 35 29 24 300 NE NEIsophoroneNA NA <20.0 <10 <10 <20 <60 <40 <20 <10 <1040 NE NE2-MethylnaphthaleneNA NA130 80 88 100 59 120 190 150 14030 NE NENaphthaleneNA NA2020222112 J25 J47363764.620Pentachlorophenol180NA24 160 370 81 J 290 J 310 180<50780.3 NE NEPhenanthreneNA NA <20.0 <10 <102 J 3 J<402 J 100<10200 NE NEPhenol<88 NA <20.0 <10 <10 <20 <60 <40 <20 <10 <1030 NE NEbis(2-Ethylhexyl)phthalateNA NA <20.0 <10 <10 <204 J<40 <207 JB<103NENEMetals (6020B/7470A)AluminumNA NA846 332NA68NA369NA6,180NANE NE NEArsenic<5.0 NA <2.32.6NA2.8NA4.1NA5.0NA1NENEBariumNA NA33 28NA17NA25NA73NA700 NE NECalciumNA NA3,160 2,720NA1,910NA2,970NA2,690NANE NE NEChlorideNA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)<30NANANANANANANANANANA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA NA84 108NA63NA82NA94NA1NENECopper<20.0 NA12<20.0 NA <16 NA <16 NA29NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIronNA NA43,700 42,400NA33,800NA44,500NA53,700NA300 NE NELead<5.0 NA1.5<2.5 NA2.6NA <2.3 NA3.1NA15 NE NEMagnesiumNA NA4,020 3,980NA2,340NA2,900NA4,860NANE NE NEManganeseNA NA12,000 14,000NA5,940NA10,300NA11,300NA50 NE NENickelNA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA4,330<2,400 NA2,330NA <2,300 NA7,670NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA20 NE NESodiumNA NA46,500 40,800NA29,900NA47,600NA45,900NANE NE NESulfateNA NA NA NANANANANANANANA250,000 NE NEVanadium NA NA NA NANANANANANANANA7NENEZincNA NA NA NANANANANANANANA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.5/25/1988* 7/13/1988*µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgraident; located north of well EMW-G11/3/1988*2/4/1988*S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 13 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate6/19/2013Well DetailsUnitsVOCs (8260D)Acetone28NA NA NA NA NA NA30 BNA NA NA6,000 NE NEBenzene<5.0 NA <5 NA <5 NA NA <5 NA NA NA11.66.9Chloroform<5.0 NA NA NA NA NA NA <5 NA NA NA70 0.81 3.6Ethylbenzene4 JNA3 JNA3 JNA NA4 JNA NA NA600 3.5 15Methylene Chloride8 JBNA <10 NA2 JNA NA1 JBNA NA NA5 760 4,000Toluene3 JNA2 JNA3 JNA NA4 JNA NA NA600 3,800 16,000Total Xylenes20NA19NA17NA NA22NA NA NA500 77 320SVOCs (8270E)Anthracene<10 <10 <10 <20 <10 <10 <250 <10 <10 <50 <5.12,000 NE NEBenzoic Acid5 J 5 J<100 <200 <50 <50 <1,30013 J 7 J<500 NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA180 4,000 NE NEDi-n-butylphthalate<10 <10 <10 <20 <10 <10 <250 <10 <10 <50 <5.1700 NE NEDibenzofuran<10 <102 J<203 J 4 J<2503 J 3 J<50 <5.1NE NE NEFluorene26 30 17 24 28 24<25031 24 27 J<5.1300 NE NEIsophorone<10 <10 <10 <20 <10 <10 <250 <10 <10 <50 <5.140 NE NE2-Methylnaphthalene130 150 91 110 100 100 140 JD 110 98 130<5.130 NE NENaphthalene37392532333138 JD424348 J<5.164.620Pentachlorophenol58 30 J 77 270 120 2,800 E 1,900 D 490 E 360 E 370 8,100 Q0.3 NE NEPhenanthrene<10 <10 <10 <204 J 5 J<250 3 J 3 J<50 <5.1200 NE NEPhenol<10 <10 <10 <20 <102 J<250 <10 <10 <5012 30 NE NEbis(2-Ethylhexyl)phthalate2 J4 J<10 <208 JB2 JB<250 <102 J<50 <5.13NENEMetals (6020B/7470A)Aluminum735NA NA NA NA NA NA NA NA NA1,300 NE NE NEArsenic<2.4 NA3.6 BNA <3.0 NA NA <10 NA NA191NENEBarium28.6 BNA25.8 BNA24.0 BNA NA <100 NA NA400 700 NE NECalcium3,440 BNA NA NA NA NA NA NA NA NA NANE NE NEChlorideNA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA <5.010 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA85 NE NE NECobalt79.7NA76.7NA107NA NA100NA NA NA1NENECopper<1.6 NA <7.3 NA <4.0 NA NA NA NA NA320 1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron46,000NA49,900NA51,700NA NA NA NA NA55,000300 NE NELead5.4NA <0.90 NA2.1 BNA NA NA NA NA <10.015 NE NEMagnesium3,530 BNA NA NA NA NA NA NA NA NA <5,000NE NE NEManganese13,500NA10,500NA12,100NA NA NA NA NA9,20050 NE NENickelNA NA NA NA NA NA NA NA NA NA <40100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassium<4,910 NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA <5.020 NE NESodium 47,400NA NA NA NA NA NA NA NA NANANE NE NESulfateNANA NA NA NA NA NA NA NA NANA250,000 NE NEVanadium NANA NA NA NA NA NA NA NA NANA7NENEZincNANA NA NA NA NA NA NA NA NA130 1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.5/24/1989* 2/7/1990*µg/LMW-GScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgraident; located north of well E7/3/1990*3/10/1989*S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 14 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate5/21/1987 6/15/1987 5/21/1987 6/15/1987 7/13/1988 9/30/2004 3/25/2005 10/4/2005 4/20/2006 10/25/2006 6/12/2007 12/12/2007 7/9/2008 2/10/20091/25/2012 6/19/2013Well DetailsUnitsVOCs (8260D)AcetoneNA NA4 JBNA NA NA7 JBNA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA<10.0<5.0NANA<10.0<5.0NANANANANANANANANANANA11.66.9Chloroform<10.0<10.0<5.0NA<10.0<10.0<5.0NANANANANANANANANANANA70 0.81 3.6Ethylbenzene<10.0<10.0<5.0NA<10.0<10.0<5.0NANANANANANANANANANANA600 3.5 15Methylene Chloride<10.0 <10.02 JBNA <10.0 <10.03 JBNA NA NA NA NA NA NA NA NA NA NA5 760 4,000Toluene<10.0<10.0<5.0NA<10.0<10.0<5.0NANANANANANANANANANANA600 3,800 16,000Total Xylenes<10.0NANANA<10.0NANANANANANANANANANANANANA50077320SVOCs (8270E)AnthraceneNA NA <20 <20 NA NA <20.0 NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <2602,000 NE NEBenzoic AcidNA NA <100 <100 NA NA <100 NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA <25.0 <25.0 <25.031 26<25.044NA6,600 Q4,000 NE NEDi-n-butylphthalateNA NA <20 <20 NA NA2 JNA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <260700 NE NEDibenzofuranNA NA <20 <20 NA NA <20.0 NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <260NE NE NEFluoreneNA NA <20 <20 NA NA <20.0 NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <260300 NE NEIsophoroneNA NA <20 <20 NA NA <20.0 NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <26040 NE NE2-MethylnaphthaleneNA NA <20 <20 NA NA3 J <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <26030 NE NENaphthaleneNA NA <20 <20 NA NA <20.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <26064.620Pentachlorophenol<50.0 NA <100 <100 <50.0 NA <100 <26 <2579<25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <1,3000.3 NE NEPhenanthreneNA NA <20 <20 NA NA <20.0 NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <260200 NE NEPhenol<5.0 NA <20 <20 <5.0 NA <20.0 NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <26030 NE NEbis(2-Ethylhexyl)phthalateNA NA <20 <20 NA NA <20.0 NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA <2603NENEMetals (6020B/7470A)AluminumNA NA <19 NA NA NA477NA NA NA NA NA NA NA NA NA NA <200NE NE NEArsenic<5.0 NA6.8NA <5.0 NA5.8<5.0 <5.05.8<5.0 <5.0 <5.0 <5.0 <10.0 <10.0 NA <10.01NENEBariumNA NA30NA NA NA38NA NA NA NA NA NA NA NA NA NA120 700 NE NECalciumNA NA3,080NA NA NA11,200NA NA NA NA NA NA NA NA NA NA NANE NE NEChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)<30 NA NA NA <30 NA NA NA NA NA NA NA NA NA NA NA NA <5.010 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA28 NE NE NECobaltNA NA <3.9 NA NA NA4.3<25 <25 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 NA NA1NENECopper<20.0 NA <16 NA <20.0 NA <16 NA NA NA NA NA NA NA NA NA NA <5.01,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIronNA NA35,500NA NA NA583NA NA NA NA NA NA NA NA NA NA15,000300 NE NELead<5.0 NA <2.3 NA <5.0 NA <2.3 NA NA NA NA NA NA NA NA NA NA <10.015 NE NEMagnesiumNA NA1,170NA NA NA3,200NA NA NA NA NA NA NA NA NA NA10,000 NE NE NEManganeseNA NA94NA NA NA139 370 510 1,100 280 200 480 1,200 1,200 1,300NA3,30050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <40100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA <2,300 NA NA NA <2,300 NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5.020 NE NESodiumNA NA9,250NANA NA9,030NA NA NA NANA NA NA NA NANANANE NE NESulfateNA NA NANANA NA NANA NA NA NANA NA NA NA NANANA250,000 NE NEVanadium NA NA NANANA NA NANA NA NA NANA NA NA NA NANANA7NENEZincNA NA NANANA NA NANA NA NA NANA NA NA NA NANA<20.01,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgradient located just north of MW-G3-inch PVC; 48 ft bgs; 10 foot screen3-inch PVC; 27 ft bgs; 10 foot screenMW-IMW-H7/13/1988*Downgradient located just north of MW-HS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 15 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate3/10/19892/6/1992 7/9/1992 2/12/1993 7/29/1993 2/1994 8/15/1994 2/21/1995 8/16/1995Well DetailsUnitsVOCs (8260D)Acetone<10.0NANANANA<10NA5 JBNA3 JNA <10.0 <10.0 <10.0 NA NA NA NA NA6,000 NE NEBenzene<5.02 JNA5.62NA2 JNA <5.0 NA12NA <5.0 <5.0 <5.0 NA NA NA <4.0 NA11.66.9Chloroform<5.0 NA NA NA NA <5 NA <5.0 NA <5 NA <5.0 <5.0 <5.0 NA NA NA NA NA70 0.81 3.6Ethylbenzene<5.07NA1.10 JNA <5 NA2 JNA2 JNA <5.0 <5.0 <5.0 NA NA NA <4.0 NA600 3.5 15Methylene Chloride<5.014NA2.88 JNA1 JBNA3 JBNA10 BNA7 JB<10.02 JBNA NA NA NA NA5 760 4,000Toluene<5.0 <5 NA <5.00 NA <5 NA <5.0 NA <5 NA <5.0 <5.0 <5.0 NA <5.0 <1 <4.0 NA600 3,800 16,000Total Xylenes<5.01 JNA5.51NA6NA NA NA4 JNA <5.0 <5.0 <5.0 NA <5.0 <3 <12.0 NA50077320SVOCs (8270E)Anthracene<10.0 <10 <10 <10 <10 <10 <10 <10.0 <10 <10 <10 <10.0 <10.0 <10.0 <20.0 NA NA NA <10.02,000 NE NEBenzoic Acid5 J<100 <100 <100 <100 <100 <1003 J<100 <100 <100 <100 <100 <100 <100 NA NA NA <50.030,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalate<10 <10 <10 <10 <10 <10 <101 J<101 J<10 <10.02 J<10.0 <20.0 NA NA NA <10.0700 NE NEDibenzofuran<10.0 <10 <10 <10 <10 <10 <10 <10.0 <10 <10 <10 <10.0 <10.0 <10.0 <20.0 NA NA NA <10.0NE NE NEFluorene<10.0 <10 <10 <10 <10 <10 <10 <10.0 <10 <10 <10 <10.0 <10.0 <10.0 <20.0 <100 <10 NA <10.0300 NE NEIsophorone<10.0 <10 <10 <10 <10 <10 <10 <10.0 <10 <10 <10 <10.0 <10.0 <10.0 <20.0 NA NA NA <10.040 NE NE2-Methylnaphthalene<10.01 J<1017 14 17 1 J34 33 3826<10.0 <10.0 <10.0 <20.0 <100 <10 <10.0 <10.030 NE NENaphthalene<10.02 J<10189 J191221202416<10.0 <10.0 <10.0 <20.0 <100 <10 <10.0 <10.064.620Pentachlorophenol52<20 <201 J<20 <2015 J<20.0 <2013 J 9 J 14 J 49 17 J<100 <100 <1027.2<50.00.3 NE NEPhenanthrene<10.0 <10 <10 <10 <10 <10 <10 <20.0 <10 <10 <10 <10.0 <10.0 <10.0 <20.0 NA NA NA <10.0200 NE NEPhenol<10.0 <10 <10 <10 <1011<10 <10.0 <10 <10 <10 <10.0 <10.0 <10.0 <20.0 NA NA NA <10.030 NE NEbis(2-Ethylhexyl)phthalate2 J<10 <103 JB 2 JB 2 J 2 J 1 J<104 J1 J4 J3 J 1 JB<20.0 <100 <19 <10.0 <10.03NENEMetals (6020B/7470A)Aluminum1,730NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<2.41.6 BNA <3.0 NA <10 NA22.2NA <5.0 NA <3.0 <4.0 <3.0 <100 <5.0 <5 <20.0 <10.01NENEBarium59.4 B 49.0 BNA114 BNA100NA104 BNA113 BNA84.1 B 147 B 69.9 B 100NA <100129<100700 NE NECalcium13,400NA NA NA NA NA NA NA NA35,700NA NA NA NA NA NA NA NA NANE NE NEChlorideNA NA NA NA NA NA NA NA NA NA NA14,700NA11,100 30,000 5,000 15,000 17,000 7,000 250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt<5.1 <3.3 NA6.4 BNA<50NA<7.0NA<6.0NA<7.07.6 B<9.0 <100 <50.0 <10 <10.08.11NENECopper10.2 B<7.3 NA16.5 BNA NA NA3.8 BNA6.6 BNA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron2,620 531NA749NA NA NA1,710NA1,810NA1,610 1,240118 140 120 220501<100300 NE NELead1.8 B<0.90NA<2.0NANANA<3.0NA3.8NA13.0 6.5 3.9<10.0 <50.0 <50 <20.0 <10.015 NE NEMagnesium3,420 BNA NA NA NA NA NA NA NA7,890NA NA NA NA NA NA NA NA NANE NE NEManganese2,580 2,510NA5,020NA NA NA3,040NA2,810NA309 3,580 914 940 590 1,240 2,930 76350 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassium<4,910 NA NA NA NA NA NA NA NA2,620 BNA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 10,700NA NA NA NA NA NANANA14,400NA10,100 13,700 9,570 13,230 7,500 9,200 13,700 7,460 NE NE NESulfateNANA NA NA NA NA NANANA NA NA3,350NA <2,00070<5,000 <5,000 NA3,000 250,000 NE NEVanadium NANA NA NA NA NA NANANA NA NANA NA NA NA NA NA NA NA7NENEZincNANA NA NA NA NA NANANA NA NANA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LDowngradient; located between MW-E and MW-GMW-K4-inch PVC; 123 ft bgs; 30 foot screenNon-Residential GWSLs(2)7/3/1990*Screening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)2/7/1990* 1/30/1991* 7/2/1991*5/24/1989*S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 16 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate8/25/1995 3/5/1996 8/7/1996 2/26/1997 8/21/1997 3/5/1998 8/26/1998 3/2/1999 8/18/1999 3/1/2000 8/14/2000 3/7/2001 8/22/2001 2/25/2002 9/5/2002 3/10/2003 9/3/2003 3/25/2004Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA11.66.9ChloroformNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA70 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA5 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA50077320SVOCs (8270E)AnthraceneNA <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NA2,000 NE NEBenzoic AcidNA <100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NA700 NE NEDibenzofuranNA <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NANE NE NEFluorene<10.0 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NA300 NE NEIsophoroneNA <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NA40 NE NE2-Methylnaphthalene<10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.05.2<5.0 <5.0 <5.08.8<5.015 30 NE NENaphthalene<10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.07.6<5.0 <5.0 <5.06.1<5.08.464.620Pentachlorophenol65<10.0 <10.011.3 10.8 28.8 40.6<10.0 <2579 25 120 43 33 120 45<25.01100.3 NE NEPhenanthreneNA <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NA200 NE NEPhenolNA <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NA30 NE NEbis(2-Ethylhexyl)phthalate1.6 JB<10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.1 <5.0 <5.0 <5.0 <5.0 <5.0 NA3NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenicNA <50.0 <50.0 <50.0 <20.0 <50.0 <5 <5 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.01NENEBariumNA55 60 65 51 67 99 57 59 94 79 140 65 74 68 83 67NA700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChlorideNA8,530 8,970 9,100 9,790 17,000 18,000 9,020 9,050 13,000 10,000 26,000 11,000 12,000 12,000 17,000 14,000NA250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobaltNA <10.0 <10.0 <10.0 <10.0 <10.0 <25 <25 <25 <25 <25 <25 <25.0 <25 <25.0 <25.0 <25.0 <25.01NENECopperNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIronNA <50.045 115 30 103589<100 <100950 1,200 460<100140 100<100 <100 NA300 NE NELeadNA <50.0 <20.0 <20.0 <20.0 <20.0 <3 <3 <3.0 <3.0286.7<3.0 <3.010<3.05.5NA15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganeseNA584 599 613 411 858 1,880 489 350 1,700 750 3,000 470 650 760 910 540 4,00050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodiumNA12,200 14,100 9,420 7,760 9,610 13,500 9,640 8,500 10,000 8,500 14,000 7,800 7,800 8,900 9,400 9,800NANE NE NESulfateNA <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,0001,200<1,0001,800 1,600 2,000 1,600<1,000 <1,000 NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Downgradient; located between MW-E and MW-GMW-K4-inch PVC; 123 ft bgs; 30 foot screenS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 17 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate2/11/1993 7/29/1993 2/1994 8/15/1994 2/21/1995 8/19/1995 3/5/1996 8/7/1996 2/26/1997 8/21/1997 3/5/1998 8/26/1998 3/2/1999 8/18/1999 3/1/20008/14/2000 3/7/2001Well DetailsUnitsVOCs (8260D)Acetone<10.0NANANANANANANANANANANANANANANANA6,000 NE NEBenzene<5.0 NA NA NA <4.0 NA NA NA NA NA NA NA NA NA NA NA NA11.66.9Chloroform<5.0 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA70 0.81 3.6Ethylbenzene<5.0 NA NA NA <4.0 NA NA NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene Chloride4 JBNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA5 760 4,000Toluene<5.0 NA <5.0 <1 <4.0 NA NA NA NA NA NA NA NA NA NA NA NA600 3,800 16,000Total Xylenes<5.0NA<5.0<3<12.0NANANANANANANANANANANANA500 77 320SVOCs (8270E)Anthracene<20.0<20.0NANANA<10.0<10.0NANANANANANANA<5.0<5.0<5.02,000 NE NEBenzoic Acid<100 <100 NA NA NA <50.0 <100 NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA<20.0NANANANA<10.0NANANANANANANA<5.0<5.0<5.0700 NE NEDibenzofuran<10.0<20.0NANANA<10.0<10.0NANANANANANANA<5.0<5.0<5.0NE NE NEFluorene<10.0 <20.0 <100 <10 <10.0 <10.0 <10.0 NA NA NA NA NA NA NA <5.0 <5.0 <5.0300 NE NEIsophorone<10.0<20.0NANANA<10.0<10.0NANANANANANANA<5.0<5.0<5.040 NE NE2-Methylnaphthalene<10.0 <20.0 <100 <10 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.0 <5.030 NE NENaphthalene<10.0 <20.0 <100 <10 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <5.0 <5.0 <5.0 <5.064.620Pentachlorophenol<20.0 <100 <100 <10 <20.0 <50.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <2529 35 360.3 NE NEPhenanthrene<20.0<20.0NANANA<10.0<10.0NANANANANANANA<5.0<5.0<5.0200 NE NEPhenol<10.0<20.0NANANA<10.0<10.0NANANANANANANA<5.0<5.0<5.030 NE NEbis(2-Ethylhexyl)phthalate<10.0 <20.0 <100 <19 <10.0 <10.013.8 BNA NA NA NA NA NA NA <5.0 <5.0 <5.03NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<3.0 <10011<5 <20.0 <10.0 <50.0 <50.0 <50.0 <20.0 <50.0 <5 <5 <5.0 <5.0 <5.0 <5.01NENEBarium90.8 B 70NA <10045<10071 86 86 87 179 279 215 690 160 280 290 700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride4,460 100,000 5,000 10,000<5.000 <5,0003,960 5,410 4,690 6,270 13,200 8,000 6,790 6,640 5,000 6,400 7,000 250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt<9.0 <100 <50.0 <10 <10.0 <5.0 <10.0 <10.0 <10.0 <10.0 <10.0 <25 <25 <25 <25 <25 <251NENECopperNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron6,280 89060320191671 574209 116 1385,020 4,760 539 5,000<1004,100 5,400300 NE NELead2.1 B<10.0 <50.070<20.0 <10.0 <50.0 <20.0 <20.0 <20.0 <20.0 <3 <3 <3.0 <3.0 <3.0 <3.015 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese137 9,920<10.0 <1051 53.1<20.04074 60 208 279 130 520 67 180 28050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 10,900 11,900 8,600 19,100 9,820 10,300 17,500 14,000 15,300 13,300 20,400 18,800 20,700 14,000 14,000 16,000 14,000 NE NE NESulfate 3,000 1,185<5,00011,000<5,0002,000<1,000 <1,000 <1,000 <1,000 <1,000 <1,0001,270<1,0001,500<1,0001,800 250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/L Residential GWSLs(2)Non-Residential GWSLs(2)Located near MW-BMW-L4-inch PVC; 123 ft bgs; 30 foot screenScreening Criteria NC 2L Groundwater Standards(1)S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 18 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate8/22/2001 2/25/2002 9/5/2002 3/10/2003 9/3/2003 3/25/2004 9/30/2004 3/25/2005 10/4/2005 4/20/2006 10/25/2006 6/12/2007 12/12/2007 7/9/2008 2/10/2009 1/25/2012Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA11.66.9ChloroformNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA70 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA5 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA50077320SVOCs (8270E)Anthracene<5.0 <5.0 <5.2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA2,000 NE NEBenzoic AcidNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA <26 <27 <25.027 110<25.028NA4,000 NE NEDi-n-butylphthalate<5.0 <5.0 <5.2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA700 NE NEDibenzofuran<5.0 <5.0 <5.2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NANE NE NEFluorene<5.0 <5.0 <5.2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA300 NE NEIsophorone<5.0 <5.0 <5.2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA40 NE NE2-Methylnaphthalene<5.0 <5.0 <5.2 <5.0 <5.0 <5.0 <5.0 <5.0 <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA30 NE NENaphthalene<5.0 <5.0 <5.2 <5.0 <5.0 <5.0 <5.0 <5.0 <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA64.620Pentachlorophenol91 82 140 120 120 96 74<25180 130 160 170 65 180 200 6370.3 NE NEPhenanthrene<5.0 <5.0 <5.2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA200 NE NEPhenol<5.0 <5.0 <5.2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA30 NE NEbis(2-Ethylhexyl)phthalate<5.0 <5.0 <5..2 <5.0 <5.0 NA NA NA <5.3 <5.4 <5.0 <5.0 <5.0 <5.0 <5.0 NA3NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <10.0 <10.0 NA1NENEBarium430 180 160 170 180NANANANA<25.0NANANANANANA700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride6,600 5,200 5,000 5,800 7,900NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt<25.0 <25 <25.0 <25.0 <25.0 <25.0 <25 <25 <25.0 NA <25.0 <25.0 <25.0 <25.0 <25.0 NA1NENECopperNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron7,200 1,500 1,700 500190NA NA NA NA NA NA NA NA NA NA NA300 NE NELead<3.03.9<3.0 <3.0 <3.0 NA NA NA NA NA NA NA NA NA NA NA15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese420 140 160 91 91 80 65 1,200 74 64 69 70 110 92 97NA50 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 11,000 10,000 11,000 12,000 15,000NA NA NA NA NA NA NA NA NA NA NANE NE NESulfate 2,100 2,200 1,700<1,000 <1,000 NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LLocated near MW-BMW-L4-inch PVC; 123 ft bgs; 30 foot screenScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 19 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate7/9/1992 7/29/1993 2/1994 8/15/1994 2/21/1995 8/16/1995 3/5/1996 8/7/1996 2/26/1997 8/21/1997Well DetailsUnitsVOCs (8260D)Acetone<10.0NA<10.0<10.0NANANANANANANANANANA6,000 NE NEBenzene<5.0 NA <5.0 <5.0 NA NA NA NA NA NA NA NA NA NA11.66.9Chloroform<5.0 NA <5.0 <5.0 NA NA NA NA NA NA NA NA NA NA70 0.81 3.6Ethylbenzene<5.0 NA <5.0 <5.0 NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene Chloride3 JBNA <10.02 JBNA NA NA NA NA NA NA NA NA NA5 760 4,000Toluene<5.0 NA <5.0 <5.0 NA NA <5.0 <16.3NA NA NA NA NA600 3,800 16,000Total Xylenes<5.0 NA <5.0 <5.0 NA NA <5.0 <3 <12.0 NA NA NA NA NA500 77 320SVOCs (8270E)Anthracene<10 <10 <10.0 <10 <10 <20.0 NA NA NA NA <10.0 NA NA NA2,000 NE NEBenzoic Acid<100 <100 <100 <100 <100 <100 NA NA NA NA <100 NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalate<10 <10 <10.0 <10 <10 <20.0 NA NA NA NA <10.0 NA NA NA700 NE NEDibenzofuran<10 <10 <10.0 <10 <10 <20.0 NA NA NA NA <10.0 NA NA NANE NE NEFluorene<10 <10 <10.0 <10 <10 <20.0 <100 <10 <10.0 NA <10.0 NA NA NA300 NE NEIsophorone<10 <10 <10.0 <10 <10 <20.0 NA NA NA NA <10.0 NA NA NA40 NE NE2-Methylnaphthalene<10 <10 <10.02 J 2 J<20.0 <100 <10 <10.0 NA <10.0 <10.0 <10.0 <10.030 NE NENaphthalene<10 <10 <10.0 <10 <10 <20.0 <100 <10 <10.0 NA <10.0 <10.0 <10.0 <10.064.620Pentachlorophenol<20 <2026 14 J<20 <100 <100 <10 <20.0 NA <10.0 <10.0 <10.0 <10.00.3 NE NEPhenanthrene<10 <10 <10.02 J 2 J<20.0NANANANA<10.0NANANA200 NE NEPhenol<10 <10 <10.0 <10 <10 <20.0 NA NA NA NA <10.0 NA NA NA30 NE NEbis(2-Ethylhexyl)phthalate<101 J<10.0 <10 <10 <20.0 <100 <19 <10.0 NA <10.0 NA NA NA3NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<3.0 NA <4.0 <3.0 NA <100 <5.0 <5 <20.0 <10.0 <50.0 <20.0 <50.0 <20.01NENEBarium133 BNA153 B 147 BNA240NA200 177 208 215 247 137 126 700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride16,400NA NA14,800NA40,000 5,000 20,000 16,000 14,000 15,000 14,500 14,200 15,000 250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt42.4 BNA54.0 51.6NA <100 <50.050 66 76.2 85 92 52 871NENECopperNA NA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron501NA788 660NA1,390180 80 189 233415 719 347 310300 NE NELead<2.0 NA <2.0 <2.0 NA <10.0 <50.060<20.0 <10.0 <50.0 <20.0 <20.0 <20.015 NE NEMagnesiumNA NA NA5,050NA60NA NA NA NA NA NA NA NANE NE NEManganese4,470NA5,330NA NA NA5,770 6,810 7,140 8,290 9,100 10,200 5,230 8,93050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 8,580NA8,100 8,140NA15,050 6,400 7,500 6,590 5,170 11,100 7,110 16,700 6,230 NE NE NESulfate 2,450NANA <2,000NA435 10,000<5,000 <5,0003,000<1,000 <1,000 <1,000 <1,000250,000 NE NEVanadium NANANA NANANA NA NA NA NA NA NA NA NA7NENEZincNANANA NANANA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Located by SMWU 19MW-M2/6/1992* 2/12/1993*S:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 20 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample IDDate3/5/1998 8/26/1998 8/18/1999 3/2/1999 3/1/2000 8/14/2000 3/7/2001 8/22/2001 2/25/2002 9/5/2002 3/10/2003 9/3/2003 3/25/2004Well DetailsUnitsVOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA NA NA NA NA6,000 NE NEBenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA11.66.9ChloroformNA NA NA NA NA NA NA NA NA NA NA NA NA70 0.81 3.6EthylbenzeneNA NA NA NA NA NA NA NA NA NA NA NA NA600 3.5 15Methylene ChlorideNA NA NA NA NA NA NA NA NA NA NA NA NA5 760 4,000TolueneNA NA NA NA NA NA NA NA NA NA NA NA NA600 3,800 16,000Total XylenesNA NA NA NA NA NA NA NA NA NA NA NA NA500 77 320SVOCs (8270E)AnthraceneNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 NA2,000 NE NEBenzoic AcidNA NA NA NA NA NA NA NA NA NA NA NA NA30,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalateNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 NA700 NE NEDibenzofuranNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 NANE NE NEFluoreneNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 NA300 NE NEIsophoroneNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 NA40 NE NE2-Methylnaphthalene<10.0 <10.0 <5.0 <10.0 <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 <5.030 NE NENaphthalene<10.0 <10.0 <5.0 <10.0 <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 <5.064.620Pentachlorophenol<10.0 <10.0 <25 <10.0 <25 <25 <25 <25.0 <26 <26 <26 <25.0 <25.00.3 NE NEPhenanthreneNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 NA200 NE NEPhenolNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <50.0 NA30 NE NEbis(2-Ethylhexyl)phthalateNA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.1 <5.1 <5.3 <5.0 NA3NENEMetals (6020B/7470A)AluminumNA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEArsenic<50.0 <5 <5.0 <5 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.01NENEBarium712444 320 310 210 340 310 340 250 310 190 200NA700 NE NECalciumNA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChloride22,800<5,00015,000 14,300 14,000 15,000 15,000 15,000 15,000 16,000 14,000 15,000NA250,000 NE NEChromium (Total)NA NA NA NA NA NA NA NA NA NA NA NA NA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt160 150 230 117 95 130 140 140 110 150 81 76 1001NENECopperNA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIron19,800 2,650 3,000246<1001,600 860 1,200 490 370 990 900NA300 NE NELead<20.0 <3 <3.0 <3 <3.0 <3.0 <3.0 <3.0 <3.0 <3.0 <3.0 <3.0 NA15 NE NEMagnesiumNA NA NA NA NA NA NA NA NA NA NA NA NANE NE NEManganese15,700 14,400 11,000 11,200 8,300 11,000 11,000 12,000 9,100 12,000 6,800 6,800 7,80050 NE NENickelNA NA NA NA NA NA NA NA NA NA NA NA NA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilverNA NA NA NA NA NA NA NA NA NA NA NA NA20 NE NESodium 10,200 8,080 5,300 6,900 6,000 5,400 5,800 5,400<5,000 <5,000 <5,0006,000NANE NE NESulfate<1,000 <1,000 <1,000 <1,0002,400<1,0001,600 1,700<1,000 <1,0003,400 1,600NA250,000 NE NEVanadium NA NA NA NA NA NA NA NA NA NA NA NA NA7NENEZincNA NA NA NA NA NA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LScreening Criteria NC 2L Groundwater Standards(1) Residential GWSLs(2)Non-Residential GWSLs(2)Located by SMWU 19MW-MS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 21 of 22)Hart & Hickman, PC
Table 2 Summary of Groundwater Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. DWP-001Evaluation AreaSample ID1GW-1 1GW-2 1GW-3 1GW-4 2GW-1 2GW-2 2GW-3 TGW-1 TGW-2 TGW-3Date3/23/1993 5/11/1994 5/30/1995 2/6/1992 7/9/1992 5/8/2018 5/8/2018 5/8/2018 5/8/2018 5/9/2018 5/9/2018 5/9/2018 5/9/2018 5/9/2018 5/9/2018Well DetailsUnitsVOCs (8260D)Acetone<100 <100 <1.0 <10.0 <10.07.9NA NA NA NA NA NA NA NA NA6,000 NE NEBenzene<5.0 <5 <0.3 <5.0 <5.0 <0.048 NA NA NA NA NA NA NA NA NA11.66.9Chloroform<5.0 <5 <0.3 <5.0 <5.0 <0.076 NA NA NA NA NA NA NA NA NA70 0.81 3.6Ethylbenzene<5.0 <5 <0.5 <5.0 <5.0 <0.061 NA NA NA NA NA NA NA NA NA600 3.5 15Methylene ChlorideNA <5 <1.24 JB<10.0 <0.083 NA NA NA NA NA NA NA NA NA5 760 4,000Toluene<5.0 <5 <0.3 <5.0 <5.09.3NA NA NA NA NA NA NA NA NA600 3,800 16,000Total Xylenes<5.0<5<0.8<5.0<5.0<0.15NANANANANANANANANA50077320SVOCs (8270E)Anthracene<10.0 <10.0 <12 <10.0 <10.0 <1.9 <1.8 <2.0 <2.5 <1.9 <1.7 <1.9 <1.6 <1.6 <1.82,000 NE NEBenzoic AcidNA NA <59 <100 <100 <6.2 <6.0 <6.7 <8.1 <6.2 <5.4 <6.294 J<5.4 <5.830,000 NE NECaprolactamNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA4,000 NE NEDi-n-butylphthalate<10.0 <20.0 <12 <10.0 <10.0 <2.3 <2.2 <2.4 <2.9 <2.3 <2.0 <2.2 <1.9 <1.9 <2.1700 NE NEDibenzofuran<10.0 <10.0 <12 <10.0 <10.0 <2.3 <2.2 <2.5 <3.0 <2.3 <2.0 <2.3 <2.0 <2.0 <2.2NE NE NEFluorene<10.0 <10.0 <12 <10.0 <10.0 <2.2 <2.2 <2.4 <2.9 <2.2 <2.0 <2.2 <1.9 <1.9 <2.1300 NE NEIsophorone<10.0 <10.0 <12 <10.0 <10.0 <3.3 <3.2 <3.6 <4.3 <3.3 <2.9 <3.3 <2.9 <2.9 <3.140 NE NE2-Methylnaphthalene<10.07 J 5.2 J<10.0 <10.0 <3.2 <3.1 <3.4 <4.1 <3.2 <2.8 <3.2 <2.8 <2.8 <3.030 NE NENaphthalene<10.03 J 2.2 J<10.0 <10.0 <3.4 <3.3 <3.7 <4.4 <3.4 <3.0 <3.4920<3.0 <3.264.620Pentachlorophenol<50.0 <10.0 <59 <20.02 J<1.7 <1.5 <1.8 <2.1 <1.7 <1.4 <1.61,400<1.4 <1.50.3 NE NEPhenanthrene<10.0 <10.0 <12 <10.0 <10.0 <2.0 <1.9 <2.1 <2.5 <2.0 <1.7 <1.9 <1.7 <1.7 <1.8200 NE NEPhenol<10.0 <10.0 <12 <10.0 <10.0 <1.3 <1.3 <1.4 <1.7 <1.3 <1.1 <1.3860<1.1 <1.230 NE NEbis(2-Ethylhexyl)phthalate<10.02 J<121 J 1 J<1.8 <1.7 <1.9 <2.3 <1.8 <1.5 <1.7 <1.5 <1.5 <1.63NENEMetals (6020B/7470A)AluminumNA NA <100 NA NA340,000 270,000 500,000 1,100,000 490,000 470,000 310,000 190,000 130,000 100,000 NE NE NEArsenic<3.0 <5 <10.04.4 B<4.0160 210 110 140 220 62 67 290 19 J 311NENEBarium91<20 <100137 B 44.9 B2,500 6,900 9,400 14,000 7,400 3,400 3,500 1,100 1,100600 700 NE NECalciumNA NA1,760NA NA NA NA NA NA NA NA NA NA NA NANE NE NEChlorideNA NA NA6,250NA NA NA NA NA NA NA NA NA NA NA250,000 NE NEChromium (Total)21<10<10.0NANANANANANANANANANANANA10 NE NEHexavalent ChromiumNA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NECobalt18<50 <11 <7.0 <7.0 NA NA NA NA NA NA NA NA NA NA1NENECopper17<10 <20.0 NA NA1,900 1,400 1,200 3,100 2,200 1,700 1,700630 420 280 1,000 NE NEFluorideNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA2,000 NE NEIronNA NA <10013,900 1,800NA NA NA NA NA NA NA NA NA NA300 NE NELead3<5 <10.05.0<22.0180 110 160 220 280 140 76 220 37 3815 NE NEMagnesiumNA NA <1,000 NA NA18,000 38,000 150,000 150,000 25,000 88,000 26,000 39,000 11,000 2,800 NE NE NEManganeseNA NA268 387 52.5 120,000 54,000 21,000 66,000 89,000 33,000 27,000 3,400 8,700 17,00050 NE NENickel40<20<15.0NANANANANANANANANANANANA100 NE NENitrateNA NA NA NA NA NA NA NA NA NA NA NA NA NA NA10,000 NE NEPotassiumNA NA <1,000 NA NA NA NA NA NA NA NA NA NA NA NANE NE NERadium (pCi/L)NA NA NA NA NA NA NA NA NA NA NA NA NA NA NANE NE NESilver<8<10<8NANANANANANANANANANANANA20 NE NESodiumNA NA4,320 10,200 8,400NA NANA NA NA NA NA NA NA NANE NE NESulfateNA NA <1,0005,890NANA NANA NA NA NA NA NA NA NA250,000 NE NEVanadium 140<50 <16 NA NANA NANA NA NA NA NA NA NA NA7NENEZincNA <20 <20.0 NA NANA NANA NA NA NA NA NA NA NA1,000 NE NENotes:1) North Carolina Department of Environmental Quality (DEQ) 15A NCAC 02L.0202 Groundwater Standards (2L Standards) dated April 2022.2) DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs) dated January 2022.Monitoring wells MW-A through MW-F were installed by Stuart Pump and Well Company. MW-G through MW-I were installed by Engineering Tectonics, P.A.Temporary monitoirng wells were installed by HDR Engineering, Inc in May 2018Concentrations are reported in micrograms per liter (µg/L).Compound concentrations are reported to the laboratory method detection limits.Laboratory analytical methods are shown in parentheses.With the exception of metals, only constituents detected in at least one sample are shown in the table above.Bold values exceed the 2L Standard.Underlined values exceed the DWM Residential Vapor Intrusion GWSLs. Highlighted values exceed the DWM Non-Residential Vapor Intrusion GWSLs. * = Indicates data from different dilutions.VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NE = not established; NA = not applicableJ = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. NDB = Concentration in the blank is greater than half the method detection limit and is greater than half the concentration detected in the sample. BG = Concentration in the blank is greater than half the method detection limit and is less thank or equal to half the concentration detected in the sample. The concentration in the blank is subtracted from the sample concentration.B = Compound was detected in the associated method blank; Q = Surrogate failure; E = Concentration exceeds the calibration range of the GC/MS instrument ; D = Compound identified in an analysis at a secondary dilution factorSee attached Appendix for additional detected compounds.µg/LSoutheast Portion of the Site Residential GWSLs(2)Screening Criteria POC-1Non-Residential GWSLs(2)North Runoff Lagoon (SWMU-19); north of landfillEast Runoff Lagoon (SWMU-20)NC 2L Groundwater Standards(1)MW-NS:\AAA-Master Projects\Durable Wood\Research\Tables.xlsTable 1 (Page 22 of 22)Hart & Hickman, PC
Table 3 Summary of Soil Gas Analytical DataDurable Wood7901 Pence RoadCharlotte, North CarolinaH&H Job No. MEC-003Location South of Proposed RoadSample IDSG-1Date5/9/2018Depth (ft bgs)6.0UnitsVOCs (TO-15)Benzene 9.71601,3-Butadiene44412-Butanone 3.5 J440,000Cyclohexane 8.3530,000Ethylbenzene 13490Heptane 8335,000Hexane 7161,000Isopropylbenzene 9.6 J35,000Propene 410260,000Tetrachloroethylene 1,4003,500Toluene 78440,0001,2,4-Trimethylbenzene 145,3001,3,5-Trimethylbenzene 7.1 J5,300Vinyl Acetate 4718,000m&p-Xylene 518,800o-Xylene 138,800Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated January 2022Compound concentrations are reported in micrograms per cubic meter (μg/m3)Compound concentrations are reported to the laboratory method detection limits.Bold indicates concentration exceeds Non-Residential SGSL.Only those compounds detected in the sample are shown in the table above.Laboratory analytical method shown in parentheses.VOCs = volatile organic compounds; ft bgs= feet below ground surfaceJ = compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.µg/m3Non-Residential SGSLs(1)https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Mecklenburg County - MEC/MEC-003 Durable Wood/EMP/Data Tables_04.11.22Table 3 (Page 1 of 1)Hart & Hickman, PC

Figures
USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.
Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed August, 2021.
SITE LOCATION MAP
DURABLE WOOD7901 PENCE ROADCHARLOTTE, NORTH CAROLINA
DATE: 7-5-22
JOB NO: MEC-003
REVISION NO: 0
FIGURE NO: 1
2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology
TITLE
PROJECT
0 2,000 4,000
SCALE IN FEET
SITE
Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\DWP-001\Figure 1 - Site Location Map.mxdN
U.S.G.S. QUADRANGLE MAP
MINT HILL, NORTH CAROLINA 2019
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
SB-1
SB-2
SB-3
SB-4
SB-5
DW03
DW04
DW01
DW05
DW07
DW08
DW02
DW06
REVISION NO. 0
JOB NO. MEC-003
DATE: 6-22-22
FIGURE NO. 2
DURABLE WOOD
7901 PENCE ROAD
CHARLOTTE, NORTH CAROLINA
SOIL SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
SOIL BORING (2013)
SOIL BORING (2018)
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NOTES:
1.PARCEL BOUNDARY AND AERIAL IMAGERY OBTAINED
FROM MECKLENBURG COUNTY GIS, 2022.
2.mg/kg = MILLIGRAMS PER KILOGRAM
3.BOLD INDICATES CONCENTRATION EXCEEDS
INDUSTRIAL/COMMERCIAL PRELIMINARY SOIL
REMEDIATION GOALS OR BACKGROUND METALS
CONCENTRATIONS.
PROPOSED PRIMARY
ACCESS ROAD
PROPOSED FENCED
PARKING AREA
DW07
PENTACHLOROPHENOL 12
DW05
ARSENIC 200
DW01
PENTACHLOROPHENOL 25
ARSENIC 1,500
DW02
ARSENIC 39
DW03
ARSENIC 480
DW06
ARSENIC 160
DW08
PENTACHLOROPHENOL 220
ARSENIC 600
CONSTITUENT CONCENTRATION
(mg/kg)
SAMPLE ID
P
E
N
C
E

R
O
A
D
PROPOSED MULCH
STOCKPILE AREA
PROPOSED
PRIVACY BERM
LOCATION
S:\AAA-Master Projects\Mecklenburg County - MEC\MEC-003 Durable Wood\EMP\Site_Map_Update.dwg, SOIL SAMPLES, 7/11/2022 4:14:40 PM, amckenzie
EX-1
EX-2
EX-3
EX-4
REVISION NO. 0
JOB NO. MEC-003
DATE: 6-29-22
FIGURE NO. 3
DURABLE WOOD
7901 PENCE ROAD
CHARLOTTE, NORTH CAROLINA
PROPOSED IN-SITU SOIL
SAMPLE LOCATION MAP
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
PROPOSED SOIL BORING
ALIQUOT LOCATION TO 5 FT BGS
PROPOSED SOIL BORING
ALIQUOT LOCATION TO 12 FT BGS
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NOTES:
1.PARCEL BOUNDARY AND AERIAL IMAGERY OBTAINED
FROM MECKLENBURG COUNTY GIS, 2022.
2.FT BGS = FEET BELOW GROUND SURFACE
PROPOSED PRIMARY
ACCESS ROAD
PROPOSED FENCED
PARKING AREA
P
E
N
C
E

R
O
A
D
PROPOSED MULCH
STOCKPILE AREA
PROPOSED
PRIVACY BERM
LOCATION
S:\AAA-Master Projects\Mecklenburg County - MEC\MEC-003 Durable Wood\EMP\Site_Map_Update.dwg, IN-SITU FIGURE, 7/11/2022 4:15:48 PM, amckenzie