24050_VernonPackaging_Work Plan and Approval Letter_20210301

March 1, 2021
Sent Via E-mail Billy McClatchey 3605 Glenwood Ave, Suite 445
Raleigh, NC 27612
[e-mail] Subject: Work Plan Approval Vernon Packaging
848, 850 and 860 N. Trade Street Winston-Salem, Forsyth County Brownfields Project Number 24050-20-034 Dear Mr. McClatchey,
The North Carolina Department of Environmental Quality (DEQ) Brownfields Program received and reviewed the Brownfields Assessment Work Plan for additional assessment activities submitted by Terracon Consultants Inc., for the above referenced site dated February 25, 2021. Based on our review, the Brownfields Assessment Work Plan is approved with the following conditions as
discussed with Mark Miller (Terracon) on March 1, 2021: 1. Analysis of hexavalent chromium in ground water samples can be excluded, as total chromium analysis for ground water samples is adequate. 2. If soil or groundwater evidence supports the collection of soil vapor samples, the helium
shroud will encompass the entire soil vapor sampling train in accordance with the DWM Vapor Intrusion Guidance Document (March 2018). The assessment report should describe the sampling procedures and document the sampling method with photographs. 3. As discussed, methane sampling from VP-3 and VP-4 will be necessary. If soil vapor sampling is necessary based on the groundwater or soil assessment results, the methane
sampling can be coordinated with the soil vapor sampling. Be advised that this approval from the Brownfields Program does not waive any applicable requirement to obtain any necessary permits, licenses, or certifications for the above referenced activities nor does it waive any requirement to comply with applicable law for such activities. If
you have any questions, please feel free to contact me via e-mail at [e-mail].
Vernon Packaging March 1, 2021 Work Plan Approval Page 2

Sincerely,
Peter L. Doorn Brownfields Project Manager
ec: D. Porter Jones, DPJ Residential, LLC Mark Miller, PG, Terracon Consultants, Inc. Tracy Wahl, DEQ

BROWNFIELDS ASSESSMENT
WORK PLAN

Vernon Packaging
848, 850 and 860 N. Trade Street
Winston-Salem, Forsyth County, North Carolina
NCBP #24050-20-034

February 25, 2021
Terracon Project No. 75217006

Prepared for:
DPJ Residential, LLC
Charlotte, North Carolina

Prepared by:
Terracon Consultants, Inc.
Greensboro, North Carolina

Terracon Consultants, Inc. 7327-G West Friendly Avenue Greensboro, NC 27410
P [phone] F [phone] terracon.com
February 25, 2021

Mr. Peter L. Doorne
Brownfields Project Manager
Division of Waste Management – Brownfields Program
NC Department of Environmental Quality
1646 Mail Service Center
Raleigh, NC 27699-1646

P: [phone]
E: [e-mail]

Re: Brownfields Assessment Work Plan
Vernon Packaging
848, 850 and 860 N. Trade Street
Winston-Salem, Forsyth County, North Carolina
NCBP #24050-20-034
Terracon Project No. 75217006

Dear Mr. Doorne:

On behalf of DPJ Residential, LLC, the Prospective Developer (PD), Terracon Consultants, Inc.
(Terracon) is pleased to submit this Brownfields Assessment Work Plan for the above referenced
site. Terracon has prepared this work plan based on a review of historical on-site sampling data,
our virtual meeting on January 14, 2021, and your Additional Assessment Request letter dated
February 9, 2021. The PD is seeking your approval of the work plan so that the assessment
activities can be completed, and a Brownfields Agreement can be obtained for this site.

Terracon appreciates the opportunity to present this work plan to the North Carolina Brownfields
Program (NCBP). Terracon Consultants, Inc. is licensed to practice geology in North Carolina.
The certification number of the corporation is F-0869. Should you have any questions or require
additional information, please do not hesitate to contact us at [phone].

Sincerely,
Terracon Consultants, Inc.

Mark I. Miller, P.G. Edmund Woloszyn Jr., R.E.M.
Senior Geologist, NCLG 1715 Department Manager II
Environmental Services

Cc: Mr. D. Porter Jones, DPJ Residential, LLC
TABLE OF CONTENTS

ii

1.0 INTRODUCTION ............................................................................................................. 1
1.1 General Site Description ...................................................................................... 1
1.2 On-site and Off-Site Concerns ............................................................................. 1
2.0 SCOPE OF WORK .......................................................................................................... 2
2.5 Convert Selected Soil Borings into Soil Vapor Sampling Probes .......................... 5
2.6 Brownfields Receptor Survey ............................................................................... 5
3.0 SAMPLING METHODS ................................................................................................... 6
3.1 Soil Sampling Procedures .................................................................................... 6
3.2 Groundwater Sampling Procedures ..................................................................... 7
3.3 Soil Vapor Sampling Procedures ......................................................................... 8
4.0 SAMPLE ANALYSES ..................................................................................................... 9
5.0 QUALITY ASSURANCE / QUALITY CONTROL .......................................................... 10
6.0 INVESTIGATION DERIVED WASTE MANAGEMENT ................................................. 11
7.0 BROWNFIELDS ASSESSMENT REPORT ................................................................... 11

Exhibits

Exhibit 1 – Topographic Map
Exhibit 2 – Site Plan
Exhibit 3 – Site Plan with Sampling Locations

Table

Table 1 – Proposed Sampling and Analysis Plan

Appendix

Appendix A – Brownfields Receptor Survey Form

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BROWNFIELDS ASSESSMENT WORK PLAN
VERNON PACKAGING
848, 850 AND 860 N. TRADE STREET
WINSTON-SALEM, FORSYTH COUNTY, NORTH CAROLINA

NCBP #24050-20-034
Terracon Project No. 75217006
February 23, 2021

1.0 INTRODUCTION

1.1 General Site Description

The site consists of two complete parcels of land (Forsyth County Parcel I.D. Nos. 6835-19-5549
and 6835-19-5759) located at 848 and 860 N. Trade Street (respectively) in Winston Salem,
Forsyth County, North Carolina along with a portion of the south-adjacent parcel (Forsyth County
Parcel I.D. No. 6835-19-5455) located at 850 N. Trade Street (Exhibit 1). The approximately
0.92-acre parcel located at 848 N. Trade Street is currently occupied by Triad Produce, consisting
of one approximately 10,676 square-foot warehouse building and a gravel parking area (Exhibit
2). The approximately 2.46-acre parcel located at 860 N. Trade Street is currently occupied by
Vernon Packaging, consisting of three interconnected office/warehouse buildings along the
southern property boundary, and a gravel parking/truck storage area and grassed areas to the
north. The original building was constructed in 1978 with building additions in 1986. The buildings
comprise a total of approximately 19,016 square feet. The site also includes an approximately
0.65-acre gravel parking lot portion of the south-adjacent Combs Produce warehouse property
located at 850 N. Trade Street (Forsyth County Parcel I.D. No, 6835-19-5455). The site
operations consist of the temporary storage and distribution of fresh produce.

The site was accepted into the North Carolina Brownfields Program (NCBP) on December 23,
2020. The NCBP will be the lead regulatory agency for this project.

1.2 On-site and Off-site Concerns

Terracon completed a Phase I Environmental Site Assessment (ESA) for the property and
provided our findings, conclusions and recommendations in a report dated May 15, 2020
(Terracon Project No. 75207012). The Phase I ESA identified the following Recognized
Environmental Conditions (RECs) potentially affecting the site:

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REC/Site Concern Description
Historical Site Use The site’s historical use for light-industrial purposes including
tobacco warehousing and fresh produce distributing.
Adjacent Gas Station A gas station was formerly located southeast-adjacent and up-
gradient of the site.
Nearby Drycleaners
Drycleaners were formerly located northeast and approximately
330 feet east and up-gradient to cross-gradient relative to the
site.
Nearby Automotive
Servicing Facilities
Historical automotive servicing activities east and up-gradient of
the site.
Nearby Historical Light
Industrial Use Historical light industrial use surrounding the site.

Terracon notes that undiscovered USTs may also be present at the site.

2.0 SCOPE OF WORK

It is Terracon’s understanding that the primary concern of the NCBP is how human health could
be affected during and after redevelopment activities at the site. In order to assess the site for
chemicals of potential concern (COPCs) and associated health-based risks, Terracon proposes
to advance soil borings, install groundwater monitoring wells, install soil vapor sampling probes,
collect and analyze soil and groundwater samples (and conditional soil vapor samples), and
complete a Brownfields Receptor Survey. Proposed sample locations are based primarily on
areas of potential concern due to site history, identified data gaps, and discussions with the NCBP.
The most recent Inactive Hazardous Sites Branch (IHSB) Program Guidelines for Assessment
and Cleanup will be used as a protocol for additional assessment activities. The rationale for
selecting specific sample intervals/locations is discussed below for the different sample media.

The soil and groundwater assessment activities are intended to address historical site conditions,
soil and groundwater quality in the areas of current solid waste accumulation areas, compressors
and generally across the site, and along the site’s eastern (up-gradient) boundary. The
assessment will generally consist of the following elements:

◼ Prepare a site-specific Health and Safety Plan
◼ Clear utilities
◼ Advance soil borings
◼ Convert selected soil borings to permanent groundwater monitoring wells
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◼ Convert selected soil borings to soil vapor sampling probes
◼ Collect soil and groundwater samples, and conditional soil vapor samples
◼ Analyze soil, groundwater and soil vapor samples
◼ Complete Brownfields Receptor Survey
◼ Prepare Brownfields Assessment Report

2.1 Health and Safety Plan

Terracon will prepare a Health and Safety Plan to address physical and chemical hazards at the
site. The Plan will be prepared in accordance with Occupational Safety and Health (OSHA)
1910.120 requirements. At this time, we anticipate that a U.S. EPA Level D work uniform
consisting of a hard hat, safety vest, safety glasses, protective gloves and steel-toed boots will be
required by all personnel in the work area. It may become necessary to upgrade this level of
protection in the event that petroleum or chemical constituents are present and an increased risk
for personal exposure is encountered in soils or groundwater while sampling activities are being
conducted.

2.2 Clear Utilities

Following our receipt of your authorization to proceed and at least three days prior to intrusive
activities, Terracon will contact a utility locator (NC 811) to arrange for identifying underground
utilities at the above-referenced site. The locator will attempt to identify all utilities traversing the
site. Terracon will additionally depend on assistance from the client and/or site contact for
identifying the location of private underground utilities at the site. Terracon will also
subcontract with a private utility locator for the purpose of identifying on-site utilities at our
proposed boring locations.

2.3 Advance Soil Borings

The soil borings will be positioned to generally assess soil and/or groundwater quality concerns
associated with on-site and off-site environmental concerns. The soil borings will be advanced
using a track-mounted Geoprobe® direct push technology (DPT) drill rig using a 2.25-inch
diameter Macrocore® soil sampler. Two borings will be advanced with a hand auger due to access
constraints. The five monitoring well borings will be advanced with an air-rotary DPT rig
advancing eight-inch diameter hollow stem augers. A total of 17 soil borings will be advanced on
the site to depths ranging from approximately 5 to 60 feet below ground surface, as described in
the following table and as shown in Exhibit 3:

Boring No. Fill Depth Sample Depth Total Depth Other Use
B-1 3 feet 3-5 feet 5 feet Soil Boring Only
B-2 2 feet 2-4 feet 10 feet Convert to Vapor Probe
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Boring No. Fill Depth Sample Depth Total Depth Other Use
B-3 0 feet n/a 10 feet Vapor Probe Only
B-4 0 feet 0-2 feet 3 feet Soil Boring Only
B-5 8 feet 8-10 feet 10 feet Hand Auger - Convert to Vapor
Probe
B-6 8 feet 8-10 feet 10 feet Soil Boring Only
B-7 8 feet 8-10 feet 10 feet Soil Boring Only
B-8 6 feet 6-8 feet 10 feet Hand Auger – Convert to Vapor
Probe
B-9 6 feet n/a 10 feet Vapor Probe Only
B-10 2 feet 2-4 feet 10 feet Convert to Vapor Probe
B-11 2 feet n/a 10 feet Vapor Probe Only
B-12 6 feet 6-8 feet 10 feet Convert to Vapor Probe
MW-1 3 feet n/a 60 feet Permanent Well
MW-2 2 feet n/a 60 feet Permanent Well
MW-3 0 feet n/a 60 feet Permanent Well
MW-4 2 feet n/a 60 feet Permanent Well
MW-5 6 feet n/a 60 feet Permanent Well

Please refer to the attached Table 1 for the proposed number of samples per area of concern.
The proposed boring locations may be modified in the field to account for utility clearance, access
limitations, and/or site conditions. The client will be notified of any significant modifications to the
sampling locations. Terracon will prepare boring logs for each boring.

Drilling equipment will be cleaned using a high-pressure washer prior to beginning the project and
before each boring. Non-dedicated sampling equipment will be cleaned using an Alconox®
detergent wash and potable water rinse prior to commencement of the project and after collection
of each sample. The sample locations (horizontal control only) will be documented by a North
Carolina licensed surveyor.

2.4 Convert Selected Soil Borings into Permanent Monitoring Wells

Five of the soil borings will be converted to permanent groundwater monitoring wells in
accordance with the USEPA Region 4 Science and Ecosystem Support Division (SESD)
Guidance for the Design and Installation of Monitoring Wells (SESD Guidance Document) dated
January 2018 and in accordance with North Carolina’s well construction standards as
promulgated in 15A NCAC 2C:

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◼ Installation of a 10-foot section of two-inch diameter, 0.010-inch machine slotted PVC well
screen;
◼ Installation of a two-inch diameter, threaded, flush-joint PVC riser pipe to the ground
surface;
◼ Placement of a fabric filter sock over the 10-foot well screen;
◼ Installation of a sand pack around and two-feet above the well screen;
◼ Installation of a two-foot thick bentonite seal over the sand pack, followed by grout to within
approximately one foot of the ground surface; and
◼ Installation of a flush-mounted, traffic-rated well vault set in a concrete pad.

The groundwater monitoring well locations (both horizontal and vertical control) will be
documented by a North Carolina licensed surveyor.

2.5 Convert Selected Soil Borings into Soil Vapor Sampling Probes

Eight of the soil borings will be installed as or converted to temporary soil vapor sampling probes
in accordance with the following procedures:

◼ Installation of a ¼-inch diameter TeflonTM tube to approximately six inches from the bottom
of the boring and extending two feet above ground surface. Bottom end of tube is
equipped with a GeoprobeTM implant anchor/drive point and top end of tube is crimped;
◼ Installation of a coarse sand pack around and approximately two feet above the bottom of
the tubing;
◼ Installation of two-foot thick bentonite seal over the sand pack, followed by grout to the
ground surface.

The number of soil vapor implants to be sampled will depend on the soil and groundwater sample
analytical results. The soil vapor implant locations (horizontal control only) will be documented
by a North Carolina licensed surveyor.

2.6 Brownfields Receptor Survey

A Brownfields Receptor Survey will be completed as part of the additional assessment for the
site. The “Brownfields Property Receptor Survey” form will be used to conduct the field and office-
based portions of the receptor survey. The completed form and a summary of findings will be
included in the Brownfields Assessment Report. A copy of the Brownfields Property Receptor
Survey form is attached in Appendix A.

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3.0 SAMPLING METHODS

3.1 Soil Sampling Procedures

Soil sampling techniques outlined in this work plan are in general accordance with the North
Carolina Department of Environmental Quality (NCDEQ), Inactive Hazardous Sites Branch
(IHSB) Guidelines for Assessment and Cleanup of Contaminated Sites dated January 2020. The
soil samples will be collected in acetate liners to document lithology, color and relative moisture
content. Soil type, relative moisture content, and other lithologic characteristics will be
documented in boring logs prepared in the field. Terracon will screen the soils at minimum five-
foot intervals in the field using a photo-ionization detector (PID) that detects and quantifies volatile
vapors.

Soil samples (including one duplicate sample for every five samples collected) will be collected at
the depth intervals described in the Sampling and Analysis Plan (Table 1). The soil samples will
generally be collected in the two-foot interval of native soils underlying fill soils or foundation
excavation dept, whichever is greater. As summarized below, the proposed borings target the
following areas of the site:

Boring No. Soil Sample Depth Boring Location
B-1 3-5 feet Northwestern, down-gradient corner of site
B-2 2-4 feet Northeastern corner of site
B-3 n/a Along eastern (up-gradient) site boundary (vapor only)
B-4 0-2 feet Eastern portion of site, adjacent to dumpsters
B-5 8-10 feet Eastern portion of site, adjacent to compressor
B-6 8-10 feet Eastern portion of site, material storage area
B-7 8-10 feet Eastern portion of site, material storage area
B-8 6-8 feet Central portion of site, adjacent to air conditioning unit
B-9 n/a Western end of buildings (vapor only)
B-10 2-4 feet Southwestern corner of site
B-11 n/a Along southern site boundary (vapor only)
B-12 6-8 feet Southeastern, up-gradient corner of site
MW-1 n/a Northwestern, down-gradient corner of site
MW-2 n/a Northeastern corner of site
MW-3 n/a Eastern portion of site, adjacent to dumpsters
MW-4 n/a Southwestern corner of site
MW-5 n/a Southeastern, up-gradient corner of site
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Terracon notes that the sampling depths will be determined in the field based on the actual
thickness of fill soils. In the event that soil samples from a boring exhibit elevated PID readings,
the sample collected in native soils with the highest PID reading will be collected. The default soil
sampling depths shown above were selected based on the anticipated depth of fill soils and base
of foundation excavation based on previously advanced geotechnical soil borings.

The soil samples will be placed into laboratory-supplied glass containers, labeled with pertinent
sample information with a permanent marker and stored in an ice-packed cooler pending
submittal to Pace Analytical Laboratories in Mt. Juliet, Tennessee, a North Carolina certified
laboratory. Chain of custody documentation will accompany the samples to the laboratory.
Terracon notes that additional soil samples, beyond those described in Table 1, may also be
collected on the basis of the PID readings.

Soil sample results will be compared to the IHSB’s Preliminary Soil Remediation Goals (PSRGs)
for unrestricted use and residential use. Additionally, constituent concentrations in the soils will
be evaluated using the NC Brownfields Program’s Soil Risk Calculator under Residential and
Non-Residential exposure scenarios.

3.2 Groundwater Sampling Procedures

After allowing sufficient time for equilibration, depth to groundwater and total depth measurements
will be obtained from each well using an electronic water level meter. The depth to groundwater
measurements will be compared to the monitoring well location and elevation information to
construct a groundwater gradient map for the site. If depth to groundwater conditions allow, a
peristaltic pump will be used for low-flow sample collection. Otherwise, the samples will be
collected with a submersible pump and associated controller. Disposable bailers will be used if
the collection of groundwater is not feasible with the use of either a peristaltic pump or submersible
pump. The wells will be purged of at least three well volumes of groundwater prior to sampling.

Using either a peristaltic pump or submersible pump, the groundwater samples will be collected
from the monitoring wells using low flow sampling rates (<200 milliliters per minute). The following
parameters: pH, temperature, oxidation reduction potential (ORP), dissolved oxygen (DO),
conductivity and turbidity will be measured during purging. The groundwater samples will be
collected after the field-measured water quality parameters have stabilized within 10 percent and
turbidity values have decreased to less than 10 nephelometric turbidity units (NTUs). In the event
that groundwater conditions do not allow for the use of low-flow sampling, the groundwater
samples will be collected using disposable bailers, and the parameters will be measured following
removal of each well volume of water. The groundwater samples will be placed into laboratory-
supplied bottles, stored on ice in an insulated container, and shipped along with chain-of-custody
documentation to the state-certified Pace Analytical Laboratories in Mt. Juliet, Tennessee for
analysis.
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Groundwater analytical results will be compared to the 15A NCAC Subchapter 2L Groundwater
Quality Standards. Additionally, constituent concentrations in groundwater will be evaluated using
the IHSB’s Residential and Non-Residential Groundwater Screening Levels for Vapor Intrusion
and the NC Brownfields Program’s Vapor Intrusion Risk Calculator under Residential and Non-
Residential exposure scenarios.

3.3 Soil Vapor Sampling Procedures

The collection and analysis of soil vapor samples is contingent on the analytical results of the soil
and groundwater samples. If none of the soil or groundwater samples contain VOCs or SVOCs
at concentrations exceeding their respective IHSB action levels as determined using the NCDEQ
Risk-based Calculator tool or 15A NCAC 2L Groundwater Quality Standards (2L Standards), none
of the soil vapor probes will be sampled. If VOCs and/or SVOCs are detected in the soil or
groundwater samples at concentrations exceeding health-based risk levels, Terracon will confirm
with the NCBP the number of soil vapor probes to be sampled.

The soil vapor implants will be allowed to equilibrate for a minimum of two hours after installation.
A helium tracer gas leak test will be conducted prior to sampling. The tracer gas serves as a
QA/QC method to verify the integrity of the soil vapor probe seal. Approximately three volumes of
the vapor implant annulus and attached Teflon® lined tubing will be purged. Purge samples will
be screened for helium to assess for leaks in the well seal and with a PID detector to assess for
VOCs. Sample collection will begin if the tracer testing indicates helium concentrations in the
vapor implant are less than or equal to 10 percent of the helium concentration in the shroud,
indicating a sufficiently sealed vapor implant annulus. Soil vapor samples will be collected using
an inline purge/sampling train consisting of a batch-certified 1-liter Summa canister for sample
collection (sample canister) connected to a critical orifice flow restrictor (flow controller). The
sample will be collected over a 15-minute time interval.

Samples will be collected with 1.0-liter Summa® canisters equipped with flow controllers.
Investigation and sample collection procedures will be conducted in accordance with local
industry standard practices.

Shut-In Test
At each soil vapor implant, prior to connection of the sampling train to the implant, a shut-in (dead-
head) test will be conducted to check for leaks in the above-ground purge/sampling manifold. The
sample canister and a sacrificial canister (which will not be submitted for laboratory analysis) will
be connected to the sampling train. The sampling train influent will be capped, the sampling
canister will remain closed, and the sacrificial canister will be opened to create a negative
pressure reading on the sampling train pressure gauge. The sacrificial canister valve will then be
closed. If there is an observable loss of vacuum, the fittings will be adjusted until the vacuum in
the sample train does not noticeably dissipate.
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Helium Tracer Test
For each soil vapor implant sample, following the shut-in test, the purge/sampling train will be
connected to the soil vapor sampling implant and a Helium tracer gas leak test will be conducted.
The tracer gas serves as a QA/QC method to verify the integrity of the seal of sampling train to
the sample implant. An MGD-2002 (or equivalent) helium detector will be used to verify the
presence and concentration of tracer gas.

The protocol for using a tracer gas is to enclose the tubing and ground interface within a shroud
and enrich the shroud atmosphere to at least 10 percent helium. The purging device (i.e. syringe
or peristaltic pump) will be situated inside the shroud and connected to the sampling train by
Teflon® lined tubing running through the shroud. A minimum of three volumes of the vapor implant
annulus and attached Teflon® lined tubing will be purged. Purged soil gas will be directed to a
TedlarTM bag at the end of each purge volume. Purged soil gas in the TedlarTM bag will then be
screened for helium to assess for leaks in the sampling implant seal and with a photo-ionization
detector (ppb RAE 3000 or equivalent) to assess for VOCs. The shroud helium concentration and
the helium concentration in the purged soil vapor will be documented after each volume purged.

Sample collection will begin if the tracer testing indicates helium concentrations in the vapor
implant are less than or equal to 10 percent of the helium concentration in the shroud, indicating
a sufficiently sealed vapor implant annulus. A photograph of the shroud and sampling set-up at
each sample location will be included in the report.

Sample Collection
After completion of the helium tracer test, the valve of the purge device will be closed, and the
sample canister valve will be opened to collect soil vapor for laboratory analysis. The sample will
be collected in a laboratory supplied, batch certified 1.0-liter Summa canister connected to sample
tubing using Swagelok® fittings at the soil vapor implant. The sample canister will be filled using
a dedicated flow controller and set to a sample rate of less than or equal to 200 milliliters per
minute. An in-line vacuum gauge will be installed to the sample controller to verify initial vacuum
levels within the canister and as an indicator that final equalization has been reached (i.e.
sampling is complete). The sample canister valve will be closed when the gauge measures less
than 6 inches in Hg vacuum (i.e. sampling is complete). The final vacuum will not be allowed to
reach 0 inches Hg vacuum.

4.0 SAMPLE ANALYSES

A total of 10 soil samples will be analyzed by Pace Analytical laboratory located in Mount Juliet,
Tennessee (NC Laboratory Accreditation No. Env375). The soil samples, including one duplicate
sample for every five samples collected per medium, will be analyzed for volatile organic
compounds (VOCs) using USEPA Method 8260, semi-volatile organic compounds using USEPA
Method 8270, eight Resource and Recovery Act (RCRA) metals using USEPA Method
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6020/7471, and hexavalent chrome using USEPA Method 7199. One soil sample collected
adjacent to the compressor (soil sample B-5) and beneath a pole-mounted transformer (soil
sample B-6) will also be analyzed for polychlorinated biphenyls (PCBs) using EPA Method 8082,
and if the sample contains detected PCB at concentrations exceeding its NCDEQ Preliminary Soil
Remediation Goal the sample will also be analyzed for PCB congeners using EPA Method 1668.
Level II Quality Assurance / Quality Control data packages will be provided from the laboratory
for all analyses.

A total of six groundwater samples, including one duplicate sample, will be analyzed for VOCs,
SVOCs, RCRA metals and hexavalent chrome using the analytical methods described above.

In the event that soil vapor samples are collected from the temporary soil vapor probes, the vapor
samples and one duplicate sample for every five samples collected will be analyzed for VOCs
using EPA Method TO-15. The number of soil vapor samples to be collected will be dependent
upon the soil and groundwater analytical results.

5.0 QUALITY ASSURANCE / QUALITY CONTROL

Laboratory samples will be analyzed in conjunction with standard laboratory QA/QC procedures
including appropriate blanks, duplicates, continuing calibration standards, surrogate standards,
and matrix spiking standards in accordance with approved methodologies to monitor both
instrument and analyst performance. The laboratory will include estimated concentrations for
compounds that are detected at levels above the laboratory detection but below the laboratory
reporting limit (J flags). Laboratory results not meeting reporting limits with be identified within
the QA/QC discussion of the report.

Blind duplicate samples will be collected as part of this investigation for QA/QC purposes.
Specifically, one duplicate sample will be collected for every five samples per sample media (soil,
groundwater and soil vapor) for a total of one duplicate soil sample, one duplicate groundwater
sample and up to one duplicate soil vapor sample. The duplicate samples will be submitted for
laboratory analysis of VOCs, SVOCs, RCRA metals and hexavalent chrome using the analytical
methods described above. In addition to the duplicate samples, one trip blank will be submitted
with the groundwater samples for analysis of VOCs using EPA Method 8260.

A level II QA/QC data package will be requested from the analytical laboratory for the soil,
groundwater and soil vapor samples. Terracon will require that laboratory reporting limits (RL)
and Method Detection Limits (MDL) be below applicable standards and screening levels, to the
extent feasible. Terracon will also request “J-Flag” values to be included in the laboratory
analytical reports.

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6.0 INVESTIGATION DERIVED WASTE MANAGEMENT

Following the completion of sampling activities, each soil boring will be properly abandoned in
general accordance with applicable USEPA Region 4 SESD Guidance Document dated January
2018. The borings will be abandoned by backfilling the borehole with bentonite pellets. The
pellets will be hydrated, and the boring will be grouted to the surface. Soil cuttings generated
during the assessment activities that exhibit PID readings in excess of 50 parts per million
(referenced to an isobutylene standard) will be stored in 55-gallon drums pending proper
characterization and disposal.

7.0 BROWNFIELDS ASSESSMENT REPORT

Upon completion of the assessment activities and receipt of the laboratory analytical results, a
Brownfields Assessment Report will be prepared that will include the following items:

▪ Documentation of field activities;
▪ Site plan showing pertinent site features;
▪ Soil boring logs and groundwater sampling logs;
▪ Development of a groundwater potentiometric map showing the groundwater flow
direction based on field measurements and well surveying activities;
▪ Receptor survey form and results;
▪ Analytical laboratory results;
▪ Data evaluation and presentation of findings including comparison of data to applicable
regulatory standards; and
▪ Recommendations concerning further assessment, if necessary

The report will be completed in a format suitable for submittal to the North Carolina Brownfields
Program. Work associated with this scope of services will be performed under the direction of a
Licensed Geologist registered in the State of North Carolina. The final report will be signed and
sealed by a Professional Geologist licensed in the State of North Carolina.

EXHIBITS

TOPOGRAPHIC MAP
Vernon Packaging
848, 850 and 860 N. Trade Street
Winston-Salem, NC
TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY
QUADRANGLES INCLUDE: RURAL HALL, NC (1/1/1994), WALKERTOWN, NC (1/1/1997), WINSTON-SALEM WEST, NC (1/1/1997) and WINSTON-SALEM EAST, NC (1/1/1997).
7327 -G W Friendly Avenue
Greensboro, NC
75217006
Project Manager:
Drawn by:
Checked by:
Approved by:
MIM
EW
EW
1”=2,000’
Vernon Pkg
Feb 2021
2020
Project No.
Scale:
File Name:
Date: 1
Exhibit MIM
APPROXIMATE
SITE BOUNDARY
!(
!(
!(
!(
!(
!(
!(
!(!(
0 10050 Feet
75217006
Service Layer Credits: NC Statewide Orthoimagery, Site Boundaryapproximated from Forsyth County GIS and NCDEQ BrownfieldsProgram Site Plan.
Legend
!(Compressor
!(Pole-Mounted Transformer
!(Pad-Mounted Transformer
!(Dumpsters
Approximate Parcel Boundary
Approximate Site BoundaryOAK STREETWEST TENTH STREET
7327-G West Friendly AvenueGreensboro, NC 27410
Site Plan
Vernon Packaging
848, 850, and 860 N. Trade StreetWinston-Salem, North CarolinaNORTH TRADE STREETWEST NINTH STREET
MARTIN LUTHERKING JR DR
2
EXHIBITNO.Project Manager.: MIM
Drawn by:
Reviewed by:
Approved by:EW
AAF
EW
Project No.:
Scale: 1" = 100'
File Name:
Date:Feb. 2021
Vernon Pkg.
>>
>
>
>
!
!
!
!
!
!
!
!
!
!
!
!
!(
!(
!(
!(
!(
!(
!(
!(!(
B-7
B-6
B-4
B-1
B-9/VP-5
B-3/VP-2
B-2/VP-1
B-8/VP-4 B-5/VP-3
B-11/VP-7
B-12/VP-8
B-10/VP-6MW-4
MW-5
MW-3
MW-2MW-1
0 10050 Feet
75217006
Service Layer Credits: NC Statewide Orthoimagery, Site Boundaryapproximated from Forsyth County GIS and NCDEQ BrownfieldsProgram Site Plan.
Legend
!(Compressor
!(Pole-Mounted Transformer
!(Pad-Mounted Transformer
!(Dumpsters
!Soil Borings/Soil Vapor Probes
>Groundwater Monitoring Wells
Approximate Parcel Boundary
Approximate Site BoundaryOAK STREETWEST TENTH STREET
Site Plan with Sampling Locations
Vernon Packaging
848, 850, and 860 N. Trade StreetWinston-Salem, North CarolinaNORTH TRADE STREETWEST NINTH STREET
MARTIN LUTHERKING JR DR
3
EXHIBITNO.Project No.:
Scale: 1" = 100'
File Name:
Date:Feb. 2021
Vernon Pkg.7327-G West Friendly AvenueGreensboro, NC 27410
Project Manager.: MIM
Drawn by:
Reviewed by:
Approved by:EW
AAF
EW

TABLE

BROWNFIELDS INVESTIGATION
Vernon Packaging ■ Winston-Salem, NC
February 23, 2021 ■ Terracon Project No. 75217006
Responsive ■ Resourceful ■ Reliable 1

Table 1 – Sampling and Analytical Program
Vernon Packaging
848, 850 and 860 N. Trade Street, Winston-Salem, NC
P75217006

Type and Designation1 Purpose
REC/Site Concern
Advancement Method Estimated Depth (ft)2 No. of Soil Analytical
Samples3
Soil Analytical4 Groundwater Sample? (y/n) Groundwater Sampling
Method
Groundwater Analytical4 Soil Gas Sample?
(y/n)
Soil Gas Analytical4 QC Samples5
B-1 through
B-9
Historical site use
Direct Push 2-10 9
VOCs
SVOCs RCRA 8 Metals
Hexavalent Chrome
PCBs6
PCB congeners6
n n/a n/a n n/a 1
MW-1
through MW-
5
On-site historical use, off-site
RECs Direct Push, air rotary
enabled 60 0 n/a y Low-Flow
5 samples
VOCs, SVOCs
RCRA 8 Metals and Hexavalent Chrome
n n/a 1
VP-1 through
VP-8
On-site historical use, fill soils Direct Push 10 0 n/a n n/a n/a y 8 samples
VOCs 1

Notes:
1 Type and Designation: B = Soil Boring; MW = Permanent Monitoring Well; TMW = Temporary Monitoring Well; TSP = Temporary Groundwater Sampling Point; SGP = Soil Gas Probe; SSGP = Sub-slab Soil Gas Probe; IAS = Indoor Air Sample
2 Proposed maximum depth based on current knowledge of subsurface conditions and depth to groundwater in area. Depths may be modified based on the actual depth to groundwater or refusal on bedrock. If boring advancement beyond above depths
is necessary, client will be notified to discuss options and associated costs.
3 Number of unsaturated zone soil samples to be submitted for analytical testing. Samples will be assigned based on photoionization detector (PID) readings and/or professional judgement considering the type of chemical, nature and depth of source,
and chemical fate and transport characteristics.
4 Analytical Methods:
VOCs = volatile organic compounds by EPA 8260 (EPA TO-15 for soil gas)
SVOCs = semi-volatile organic compounds by EPA 8270
RCRA Metals = Resource Conservation and Recovery Act Metals by EPA 6010/7470/7471
Hexavalent Chrome by EPA 7196A
PCBs = Polychlorinated biphenyls by EPA 8082
PCB congeners by EPA 8270M
5 The NCDEQ requires that one QA/QC duplicate sample be collected and analyzed for VOCs, SVOCs, RCRA Metals and hexavalent chromium (soil samples only) for every five samples collected
6 One soil sample collected adjacent to a compressor (B-5) and beneath a pole-mounted transformer (B-6) will be analyzed for PCBs by EPA 8082. If the sample(s) contains PCB concentrations exceeding their respective regulatory action levels, the
sample(s) will also be analyzed for PCB congeners using EPA Method 8270M.

APPENDIX A
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
Site:
Address:
City:
County:
Brownfields Project Number:
Date
Property and Building Characteristics
a. Provide occupancy and use information.
c. Describe the foundation construction. Include details on type, floor construction, and depth below grade.
e. Are any subslab ventilation systems or moisture barriers in place? If so, please provide details.
NASize of Property (acres)
% of property that is wooded/brush
BROWNFIELDS PROPERTY RECEPTOR SURVEY
This form was created to clarify and simplify preparing a receptor survey for a brownfield site. Please provide the
information requested below. Distances are measured from the site property boundary unless otherwise indicated
by the DEQ Brownfield’s Project Manager (PM).
Current Usage Proposed UsageSurface Conditions
% of property that is grassed areas
% of property that is agricultural crops
% of property that is paved
d. Describe the HVAC system in the building. Include available details on type, equipment location, source of air
return, and design considerations (e.g. positive pressure?).
If an existing building is on-site, please respond to the following. Information can be provided on additional sheets
as needed. If numerous buildings are on-site, consult with your PM as only information on specific buildings may
be needed.
b. Describe the construction of the builidng including materials (e.g. wood frame, block), type and size of openings
(e.g. windows, bay doors), and height (number of stories).
% of property that is covered by buildings
Rev. 09/2015 Page 1 of 3
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
Surrounding Property Land Use
North
South
East
West
Utilities
Is there a septic system on-site? (Y or N) _________
Please provide the utility providers for the subject property
a. Natural Gas ___________________________
b. Sewer ___________________________
c. Electricity ___________________________
d. Other __________________________
For surrounding properties, please complete the following table with available information.
Zoning/Land Use
DirectionDistance
(ft)Address
* If yes, please provide a map or detailed information (distance, direction, depth) of the utility in correlation with
the subject property.
Is a water line main within 100 ft of Property boundary?
Is a natural gas line main within 100 ft of the Property boundary?
Is a buried telephone/ cable main within 100 ft of the Property boundary?
Is a septic system leach field within 500 ft of the Property boundary?
Direction
Is there a basement within 1,000 ft of the Property
Please provide information on the following land uses in the vicinity of the subject site, including a map of the
surrounding areas. If specific receptors are present, please provide addresses of the facilities.
Proposed Usage Current Use/Occupant
For the subject property, please provide a map of known buried utilites. If available, include depth to top,
construction material, and diameter of the utilities. In addition, please provide the following information on utilty
providers. If additional assessment is required, the public utility locators should be contacted. This information
can then be added to a site map.
Y/N *
Is a school or daycare center within 1,000 ft of the
Property?
Specific Land Uses of Interest Y/N *
* If numerous facilities of interest are present, their locations can be placed on a map in lieu of providing specific
addresses.
Distance
(ft)
Is there a residence within 1,000 ft of the Property?
Utility/Potential Receptor
Is a buried electrical cable main within 100 ft of Property boundary?
Is a storm water pipe within 100 ft of the Property boundary?
Is a sanitary sewer within 100 ft of the Property boundary?
Rev. 09/2015 Page 2 of 3
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
Water Supply
What is the potable water supply for the property? Public ______ Private ______
Surface Water & Wetlands
Distance
(ft)Direction AddressY/NWater Supply Wells
Please provide the following information regarding water supply wells in the vicinity of the Property. At a
minimum, a windshield survey within 1,500 ft of the property boundaries should be completed to determine if
water supply or irrigation wells may be present. Information from applicable databases can and should be
utilized; however, should not be utilized in lieu of the windshield survey. If multiple wells are present within the
requested radius, please provide a map of the well locations. If needed, please attach a separate table to list all
wells. Please note, the PM may opt for a more extensive water supply well survey if needed.
Are there surface water features on the
property? (If yes, please complete a. to d.)
Provide Information regarding Surface Water
and Wetlands
If Private, please provide details of the water supply source (i.e. well location, well construction, etc). If public,
please include the water providers name.
a. Is the water body naturally developed or
man-made?
Is a public water supply well within 1 mile of the Property boundary?
Is a private water supply well within 1,500 ft of the Property
boundary?Is an irrigation well within 1,500 ft of the Property boundary?
Response/Comments
The purpose of this section is to provide information on the presence of surface waters and/or wetlands on, or in
the vicinity of the Property.
The purpose of this section is to provide information on the water supply for the site and surrounding areas.
b. List the uses of the water body.
c. What is the source of the water for the
water body?
d. What is the nature of the bottom of the
water body (e.g., rocky or concrete bottom,
drainage ways or impoundments)
If no on-site surface water features, what is the
nearest surface water body?
Are there any wetlands present on the
property? If no wetlands on-site, are wetlands
suspected on adjoining properties?
Rev. 09/2015 Page 3 of 3