15032_800 Chatham_EMP - Final

ENVIRONMENTAL MANAGEMENT PLAN
CHATHAM MILL PROPERTY 800 CHATHAM ROAD WINSTON-SALEM, NORTH CAROLINA

Prepared for:
Chatham Mill Ventures, LLC
300 Blackwell Street, Suite 101-B Durham, North Carolina 27701

Prepared by: Apex Companies, LLC
136 Fairview Road, Suite 125 Mooresville, North Carolina 28117

Project Number: 510302.003

January 2015

Apex Companies, LLC  136 Fairview Road, Suite 125  Mooresville, NC 28117  T 704.799.6390  F 704.799.6395  apexcos.com

TABLE OF CONTENTS
1.0 INTRODUCTION ............................................................................................................. 1
2.0 BACKGROUND .............................................................................................................. 2
2.1 Phase II Environmental Site Assessment (ESA) - 2008 ....................................... 2
2.2 2008 Additional Soil and Groundwater Assessment Activities .............................. 3 2.3 Excavation of Impacted Soils ............................................................................... 4 2.4 2012 Additional Soil and Groundwater Assessment Activities .............................. 4
2.5 Sub-Floor Sampling – Building 4 .......................................................................... 5 2.6 Summary of Environmental Impacts..................................................................... 6
3.0 REDEVELOPMENT ACTIVITIES .................................................................................... 6
4.0 SOIL MANAGEMENT METHODS .................................................................................. 8 4.1 Excavation and Management of Contaminated Soils ........................................... 8
4.2 Off-Site Disposal of Contaminated Soils .............................................................. 9
4.3 Utility Trenches .................................................................................................... 9 4.4 Dust and Odor Control ......................................................................................... 9
4.5 Imported Fill Material ......................................................................................... 10
4.6 Underground Storage Tanks .............................................................................. 10
5.0 PETERS CREEK AND SITE LANDSCAPING .............................................................. 10
6.0 REPORTING ................................................................................................................. 10
7.0 HEALTH AND SAFETY PLANS ................................................................................... 10
8.0 SITE CONTACTS.......................................................................................................... 11
9.0 REFERENCES .............................................................................................................. 11
10.0 LIMITATIONS ............................................................................................................... 12

FIGURES Figure 1 Site Topographic Map Figure 2 Site Map Figure 3 Areas of Shallow Soil Impact (Less than 2 Ft. BGS)
Figure 4 Fill and Excavation Areas

TABLE
Table 1 Building 4 Fill Material
APPENDICES
Appendix A Historic Tables and Figures
Appendix B Site Plats Appendix C Health and Safety Plan Elements

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1.0 INTRODUCTION
On behalf of Chatham Mill Ventures, LLC, Apex Companies, LLC (Apex) has prepared this
Environmental Management Plan (Plan) for the property located at 800 Chatham Road, Winston-Salem, North Carolina (Figure 1). Chatham Mill Ventures, LLC (Chatham Mill Ventures)
purchased the Chatham Mill Property (Site) in April 2012, with the intention to redevelop the property into mixed use residential and office space subsequent to site cleanup activities.
Chatham Mill Ventures obtained a Brownfields Agreement (BFA) from the North Carolina Department of Environment and Natural Resources (NCDENR), Division of Waste Management, Brownfields Program to address the impacts present at the site. The Norfolk Southern railroad
right of way and associated railroad spur forms the southern property boundary to the site. Approximately 1,500 to 2,000 square feet of Building 15 lies within the right of way. This portion
of the building will be demolished during construction activities to eliminate the building
encroachment on the railroad right-of-way.
As part of the BFA, a Environmental Management Plan (EMP) must be prepared which
summarizes the impacts and outlines engineering controls necessary to protect the human health of on-site construction workers, future workers and residents, and the community. The
development activities will be conducted in two phases. This EMP addresses both development phases as well as on-going occupancy. In accordance with the BFA, NCDENR will be notified prior to intrusive activities. Following construction, on-going maintenance activities may require
minimally invasive activities such as the repair of subgrade utility lines in established trenches, landscaping activities, etc. If activities are required beyond the scope outlined below, the NCDENR will be notified of how the activities will be performed to protect human health and the
environment. According to the United States Geologic Survey (USGS) 7.5-Minute Winston-Salem East and
West-Salem West, North Carolina Quadrangles the property slopes to the north. The elevation of the property ranges from approximately 840 feet above mean sea level (msl) in the south to 795
above msl in the north. Surface drainage at the subject property generally flows to the nearest
street, where it is collected in stormwater inlets, or to storm drains located on the site which direct stormwater flow to Peter’s Creek to the west.

The Site consists of approximately six acres which were developed in the early 1900s. A total of 24 buildings have been constructed on the property over the years, such that the majority of the
site is currently occupied by multi-story warehouse and manufacturing buildings (Figure 2). Several of the structures were subsequently razed. Due to the topographic variation at the property, the construction of the buildings includes those with basements, crawl spaces, as well
as slab on grade. The warehouse and manufacturing spaces located at the site have been occupied in the past by
a variety of commercial and industrial businesses including the United States government, Western Electric, U.S. Carbon, Adele Knits, and Twin City Industrial Center. The Site is currently vacant and is listed on the National Register of Historic Places.
The site is being redeveloped for residential use and residential standards apply for soil, water,
and indoor air. Mitigation techniques to address potential indoor air issues will be addressed in a
separate document. There will be little land disturbance involved in the redevelopment activities and most of the work will include rehabilitation of existing structures. The redevelopment will occur
in two phases. Phase I will involve preparing the majority of the buildings and the grounds for
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occupation. Phase II will be conducted at a later time and involves rehabilitating Buildings 21 and 23 which will be used for maintenance (Building 21) and mixed use or strictly commercial
purposes (Building 23). Ultimately, the redevelopment will include adjacent parcels to the north,
on the other side of Peter’s Creek. This adjacent parcel will be utilized for commercial activities and parking and will prospectively be connected to the subject site with one or more pedestrian
bridges over Peters Creek. Based on the presence of subsurface impact in soils and groundwater above applicable
standards, this Plan has been prepared to outline the procedures that will be implemented during redevelopment and thereafter.
2.0 BACKGROUND

There has been numerous assessment activities conducted at this site from 2007 through 2012. The sections below summarize these activities. For a complete description of the sampling
methods utilized, quality assurance and quality control (QA/QC) measures implemented, and
more detailed information regarding analytical results, please refer to the project reports which are referenced in Section 9.
2.1 Phase II Environmental Site Assessment (ESA) - 2008

Two Phase I ESAs were conducted at the site. The initial Phase I was conducted in May 2007 by MACTEC Engineering and Consulting, Inc. (MACTEC). A subsequent Phase I ESA was prepared by AMEC Environmental & Infrastructure, Inc. (AMEC) in 2012 at the request of Chatham Mills
Ventures. Due to the Recognized Environmental Conditions identified in the initial Phase I ESA, a Phase II ESA was conducted in February 2008 to identify soil and/or groundwater contamination (MACTEC 2007). The Phase II ESA consisted of the following activities which are summarized
on the figures and tables included in Appendix A.
• Installation of 19 soil borings and 4 temporary monitoring wells.
• Soil borings were advanced to depths ranging from 3.5 to 15 feet below ground surface
(bgs) and four temporary wells were installed at a maximum depth of 28 feet bgs.
• A total of 16 soil samples were collected for laboratory analysis. Four soil borings were
advanced along the railroad spur. Three soil borings were advanced along the southern property boundary. Three soil borings were advanced along the approximate center line of a former 17,000-gallon fuel oil UST. Two soil borings were advanced in each of the
following areas; a suspected UST near Building 5 (Building 5 has been demolished), a possible UST in vicinity of Building 8, an existing #6 Fuel Oil AST, and the existing pad-
mounted electrical transformer north of Building 23. In the former garage area, one soil
boring was advanced due to the site activities conducted in this portion of the site;
• Soil and groundwater samples were generally analyzed for volatile organic compounds
(VOCs), semi-volatile organic compounds (SVOCs), total petroleum hydrocarbons – diesel range organics (TPH-DRO), and/or polychlorinated biphenyls (PCBs). A summary
of the soil and groundwater sample analytical results in included in Appendix A.
The soil analytical results from the Phase II ESA were compared to NCDENR, Division of Waste
Management, Inactive Hazardous Sites Branch (IHSB) Maximum Soil Contaminant
Concentrations (MSCCs). Groundwater analytical results were compared to North Carolina 2L
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Groundwater Quality Standards (2L Standards). The following exceedences were identified in soil samples.

• In soil boring SB-4, TPH-DRO was detected at a concentration of 14.1 milligrams per
kilogram (mg/kg) that exceeded the NCDENR Action Level of 10 mg/kg. Tetrachloroethene
(PCE) was detected at 43.1 mg/kg and naphthalene at 1.3 mg/kg, both exceeding their respective MSCCs.
• PCE was detected at a concentration exceeding its MSCC in soil boring SB-7 and SB-10.
In groundwater, trichloroethene (TCE) and PCE were detected in all three groundwater samples at concentrations exceeding their respective 2L Standards. Cis-1,2-dichloroethene (cis-1,2-DCE) and vinyl chloride also exceeded their 2L Standards in temporary well TMW-2.

The soil sampling results indicated that there had not been a release from the petroleum USTs which had been operated at the Site. The primary area of impact is located near the southern side
of the facility at the former location of the dry cleaning and PCE waste storage area, and adjacent to the railroad spur which runs along Buildings 12, 13, and 14.
2.2 2008 Additional Soil and Groundwater Assessment Activities
The 2007 Phase II ESA identified contaminated soil and groundwater at the site. Working with
the NCDENR, it was determined that additional samples were necessary in the vicinity of the railroad spur and that permanent groundwater monitoring wells should be installed to evaluate
the potential source of the groundwater contamination. Therefore, additional soil and groundwater
assessment activities were conducted under the authority of the IHSB.
In September 2008, eight soil borings were advanced in the vicinity of the railroad spur. The soil borings were advanced to a depth of approximately 10 feet bgs with a track-mounted Geoprobe® drilling rig. Soils were screened for the presence of VOCs using a photo ionization detector (PID)
and submitted to the lab for analysis of VOCs according to USEPA Method 8260 and Resource
Conservation and Recovery Act (RCRA) Metals according to USEPA Methods 6010/7470.
Three Type II groundwater monitoring wells (MW-1 through MW-3) were installed using an air hammer drilling rig. MW-1 and MW-2 were terminated at a depth of 45 feet bgs and MW-3 was completed at a depth of 35 feet bgs. Three well volumes of water were purged from each well
prior to the collection of groundwater samples. Samples were collected with a disposable Teflon™ bailer and submitted to the lab for analysis of VOCs according to USEPA Method 8260 and RCRA
Metals according to USEPA Methods 6010/7470.
The soil analytical results from the additional sampling were compared to NCDENR Health-Based
Soil Remediation Goals (SRGs) and groundwater analytical results were compared to 2L
Standards. PCE was detected in four soil borings, but at concentrations below its SRG of 0.48 mg/kg. In groundwater, PCE was detected in two groundwater samples at concentrations
exceeding its 2L Standard. TCE and cis-1,2-DCE exceeded their 2L Standards at MW-2. Lead was also detected above its 2L Standard in samples collected from wells MW-2 and MW-3, but there was no indication of the turbidity of the samples. High turbidity values, such as those often
observed in samples collected by bailer, can results in falsely high values.

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2.3 Excavation of Impacted Soils

On March 16, 2010, MACTEC oversaw the removal of soil near the railroad spur area adjacent to the former dock area (Figure 3). This area was selected for removal based on soil sample
results obtained from boring SB-4. The soils collected from this boring at 4.5 to 5 feet bls had contained PCE at concentrations exceeding residential SRGs. The excavation was approximately 14 feet long, 12 feet wide and 13 feet deep. The size of the excavation was limited by the adjacent
building, railroad spur, and monitoring well MW-2. Confirmatory soil samples were collected from each sidewall and the base of the excavation. These results are summarized and included in Appendix A. The concentrations of PCE remaining were below the current IHSB Health Based
Soil Remediation Goal (SRG) of 17 mg/Kg.
A total of 70.35 tons of soil were removed and transported off-site by Evo Corporation (Evo). The
material was manifested as a non-hazardous waste and taken to the Evo facility in Winston-Salem, North Carolina for treatment and disposal in accordance with local, state, and federal
requirements. The excavation was only partially backfilled and remains open at this time. This
excavation will be backfilled as part of site activities.
2.4 2012 Additional Soil and Groundwater Assessment Activities Chatham Mills Ventures authorized additional assessment activities in 2012. The scope of work
was conducted to evaluate the following possible areas of concern (AOCs):
• Dyeing operations in Building 23;
• Railroad spur south of Buildings 12, 13, and 14;
• Loading dock area associated with Buildings 12 and 15;
• Former UST located north of Building 8;
• Former water reservoir between Buildings 4 and 23; and
• Painting operations associated with Building 22. The scope of work included the advancement and collection of soil samples from 18 soil borings
advanced using a GeoProbe. An additional 12 borings were advanced using a hand auger to approximately 1.5 feet bgs in the railroad spur area to evaluate surficial soil conditions. Seven additional monitoring wells were installed to evaluate groundwater quality in the surficial aquifer.
In addition to the newly installed monitoring wells, the three existing monitoring wells on the property were gauged and sampled.

The analytical testing confirmed that VOCs and Polynuclear Aromatic Hydrocarbons (PAHs) are COCs at the site. Metals concentrations observed in soil and groundwater are either below their
applicable standards or similar to background concentrations.
Soil
Surficial soil impact (surface to two feet bgs) was detected in the following areas at concentrations exceeding health based SRGs (see Figure 3):
• Loading dock of building 23 (GP-2);
• Loading dock of building 21 (GP-4);
• Northern side of building 15 (GP-5);
• Crawl space area of building 8 (GP-9);
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• Crawlspace area of building 8A (GP-10); and
• Areas adjacent to the dock, and along the railroad spur at buildings 12, 13, 14 (GP-6, GP-7, and GP-8).

Composite surficial soil samples (GP-6, GP-7, and GP-8) were collected along the railroad spur and near the loading area immediately west of Building 4. PCE had been detected in this area in
the past. The concentrations of PCE in this area observed during this phase of assessment
ranged from 0.0079 mg/kg (GP-8) to 896 mg/kg (GP-6). PCE was detected in 14 soil samples across the site at concentrations exceeding the IHSB Protection of Groundwater SRG. TCE was
detected in two soil samples that exceed both the IHSB Protection of Groundwater and Residential SRGs.
PAHs were detected in only a minimal number of soil samples at concentrations exceeding their
respective SRGs. The PAHs were present in surficial soils near the railroad spur (GP-6 and GP-8), beneath Building 8 (GP-10), and on the west side of Building 23 (GP-2).
Deeper soil impact (below two feet bgs) consisting primarily of PCE and its daughter products were detected in the following areas at concentrations exceeding health based SRGs:

• West side of the reservoir located north of Building 15 (GP-3 at 2 – 4 ft bgs);
• Center of the asphalt parking lot north of Building 8A (GP-14 at 10 – 12 ft bgs);
• Adjacent to the dock at Building 12 (GP-15 at 18 - 20 ft bgs); and
• In the former waste storage area in the basement of Building 12B (GP-16 at 12 – 14 ft
bgs).
Groundwater
Groundwater quality of the site has been impacted from historic uses and the presence of VOCs,
primarily the release of PCE. The most impacted groundwater was identified on the western side of the site, associated with prior process operations in these areas. The majority of impact is
located at the railroad spur, and Buildings 12 and 21. PCE was detected in each of the monitoring wells at concentrations above the 2L Standard except
for the sample collected from MW-3, located near the intersection of Chatham Road and Northwest Boulevard. Concentrations observed in wells located near the loading docks of Buildings 12 and 21 exceed three percent of the PCE aqueous solubility.
TCE was also detected in MW-2, MW-5, MW-6, MW-7 and MW-9 at concentrations that exceed its 2L Standard. Overall, concentrations of PCE daughter products (TCE, cis-1,2-DCE, and vinyl
chloride) were relatively low when compared to the PCE present. This indicates that conditions are currently not conducive for significant reductive dechlorination to occur.

PCE has been detected in Peters Creek at concentrations exceeding applicable 2B Surface Water Quality Standards. However, this stream also obtains water from multiple industrial areas within
the downtown Winston-Salem area. 2.5 Sub-Floor Sampling – Building 4
While evaluating the subfloor area in building 4 for building design purposes, cinders and ash material were discovered immediately below the wood flooring. The cinders had apparently been
used as fill and is approximately four to six inches thick. A sample was collected of the material
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by personnel of Chatham Mill Ventures on June 18, 2012 and analyzed for the presence of volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), and metals. The
analytical results are summarized on Table 1. Data reports were provided under separate cover.
The primary COCs include polynuclear aromatic hydrocarbons (PAHs) such as phenanthrene, benzo(a)pyrene, chrysene, benzo(a)anthracene, etc.
This material will be removed by HAZWOPER trained personnel and transported off-site prior to construction activities in this portion of the facility, so utility lines can be installed. Due to space
constraints, the material will be removed primarily by hand and skid steer. A temporary staging area will be established at the south end of the property (Figure 4). This area will serve as a place
to store the material during excavation activities. Soil Management techniques are outlined in
Section 4 below.
2.6 Summary of Environmental Impacts
Based on the assessment activities conducted thus far, impacts to surficial soils are present in
the areas shown on Figure 3. This consists predominantly of soils on the south side of the main
building complex along the railroad spur, and soils to the west of Building 21. Concentrations observed (based on the 2012 data) are summarized on Figure 4 included in Appendix A. The
concentrations are all below residential SRGs. Only two locations have shown concentrations exceeding health based limits. This includes soils at SB-4 and the cinders and ash material beneath Building 4. The soil at SB-4 was the subject of a soil removal conducted in 2008. The
cinders and ash beneath Building 4 will be removed as part of the redevelopment process. Groundwater has been impacted with PCE and its degradation products. The highest
concentrations were identified on the western side of the site, associated with prior process operations. The majority of groundwater impact is located at the railroad spur, and Buildings 12 and 21.
The groundwater flows to the northeast and is encountered at depths ranging from approximately
30 feet deep on the southern side of the parcel along the railroad spur, to as shallow as eight feet
bls at the northern end of the parcel near Peters Creek. No excavation activities are planned to these depths as part of the redevelopment process. Groundwater will likely not be encountered
during site redevelopment activities or subsequent maintenance activities, and the site is also
served by city water supplies. Therefore, impacted groundwater management is not addressed further as part of this plan.
3.0 REDEVELOPMENT ACTIVITIES
Development plans include covering most surficial soils with asphalt, concrete, or pavers. The limited landscaped areas will be covered with a minimum of 12 inches (post compaction) of clean
fill material originating on-site. As mentioned above, the Norfolk Southern right-of-way forms the southern property boundary and Building 15 extends onto this right-of-way. During construction activities, that portion of Building 15 that encroaches on Norfolk Southern property will be
demolished and a new façade constructed. The new profile for Building 15 is shown on the plan in Appendix B. Surficial soils that are geotechnically unsuitable will be excavated adjacent to the
right of way to allow access for construction. The plats in Appendix B show the topographic
profile, the location of utility corridors, and landscaping on the property.

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To simplify grading plans, Apex has included Figure 4 which shows the major areas on-site which will be excavated or used for fill. The majority of the site will be unaffected since it is covered with
the existing structures. Minor excavation will be conducted along the perimeter of each building
to install foundation waterproofing. The soil removed from these limited excavations will be backfilled into the location from where it was removed and is therefore not shown on Figure 4.
The excavation activities to be conducted are summarized below.
• Excavation Area 1 - Building 4 - Removal of the cinders and ash present below the
foundation in Building 4 for the installation of utilities below the floor - (150 cubic yards (cy)). This material is likely geotechnically unsuitable for use as backfill and will be transported off-site for disposal.
• Excavation Area 2 - Walkway Along Building 21 – A small area between Buildings 21
and 23 will be excavated to a maximum of approximately one foot below existing grade
for the construction of a walkway - (15 cy). This material will be used in Backfill Area 1 and
placed at grade.
• Excavation Area 3 - Central Parking Area - Excavation of soil and fill material present
in the main parking area at the center of the parcel. The grade will be brought down four to six feet across this area – (3,300 cy). The surficial soils in this area contained little to no
impacts, and those present were likely the result of the overlying asphalt and/or deminimus
losses which would commonly be found in parking areas. The soils from this area will be used in landscaping areas, and deeper soils will be used in Backfill Area 1.
• Excavation Area 4 - Removal of Unsuitable Soils Adjacent to Railroad Spur – Geotechnically unsuitable soils (top soil and organic matter) will be removed to
approximately one foot bls in the area at the rear of the building and adjacent to the railroad right-of-way (175 cy). Because this material is geotechnically unsuitable, this material will likely be transported for off-site for disposal as non-hazardous waste.
• Excavation Area 5 - Removal of Impacted Soils Adjacent to Building 13 and 14 – For
the installation of water proofing and retaining wall, impacted soils adjacent to the rear of
Buildings 13 and 14 will be removed to approximately four feet bls – (75 cy). The excavation will be backfilled with soils from the site (most likely Excavation Area 3). Soils along the railroad tracks will be hand excavated and 12 inches (post compaction) of fill will
be placed on top of these soils.
Two areas of the site will receive backfill materials.
• Backfill Area 1 - Building 15 Along Railroad Right of Way – As described above, by
demolishing the portion of Building 15 situated on the right of way, a substantial void will be created and will require fill to return the area to the pre-demolition grade. While no
impacted soils will be backfilled into the right of way area, soil from Excavation Area 3 may be utilized as needed. Since the majority of material in Excavation Area 3 was not impacted, it is suitable to be used at any depth needed in the excavation.
• Backfill Area 2 - Former SB-4 Excavation – As described above, in 2008 a limited
excavation was conducted adjacent to the dock area. This excavation was never fully
backfilled and is open to a depth of approximately 6 feet bls. This area will be backfilled with material removed from Area 5. The soils removed from Area 5 will be from similar
depths and contain the same COCs as were previously present in the Backfill 2 area prior
to the excavation activities.
As shown on the plans included in Appendix B, landscaped areas will be constructed in select
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portions of the property. The remainder of the property is covered by impermeable surfaces. The soils from the Central Parking Area (Excavation Area #3) will be used as cover in these
landscaped areas. Approximately one to two feet of this fill (post compaction) will be installed over
the existing native soils. Since none of this material contains COCs above applicable health based goals, no additional testing of the fill material is planned once it is placed.
4.0 SOIL MANAGEMENT METHODS
4.1 Excavation and Management of Contaminated Soils

Areas containing impacted soils have been defined during the various assessment phases. Since there will be minimal land disturbance associated with this project, erosion control sedimentation
ponds will not be constructed and erosion control fencing will be installed and maintained around
the perimeter of the property.
In addition to managing the known impacts, during site construction activities, soil encountered
which have an apparent odor or based on olfactory methods will be further evaluated using field screening methods. Field screening of soils should consist of measuring the soil vapor headspace
in accordance with accepted practices and guidelines established by the Environmental Protection Agency (EPA). Such procedures include placing representative soil samples in dedicated air-tight containers (e.g., glass jars, plastic bags), which are filled approximately ½ full,
and after approximately several minutes measuring the organic vapors in the headspace inside the container elevated vapor readings as detected with field instrumentation such as a Photo Ionization Detector (PID) and/or Flame Ionization Detector (FID). This will ensure that excavated
soils are inspected/field-screened and that contaminated soils are properly segregated. Soils determined to be contaminated, based on field screening and other observations during excavation, will be managed according to guidelines noted below.
The impacted soils were previously identified. The majority of soils to be managed consist of
material excavated from surface to approximately four feet below grade. Much of the impacted
material contain COCs at concentrations exceeding protection of groundwater Maximum Soil Contaminant Concentrations. Therefore, as not to exacerbate groundwater conditions, no
impacted soils encountered will be backfilled at a depth greater than approximately 10 feet above
the water table (approximately 18 to 20 feet below land surface at the Building 15 backfill area).
When activities are conducted in areas of known or suspected impact, soils will be field screened by qualified personnel using a calibrated PID and/or FID, to evaluate for the presence of contamination. All impacted soils being stockpiled will be staged in the temporary soil staging
area to be located at the southern end of the subject property (Figure 4). This area will be lined with poly material and bermed. Any soil kept at the staging area will be covered and secured with poly to prevent surface water runoff.
The general contractor shall assure that soils from the excavation are not tracked to areas outside the excavation by truck tires. The general contractor is responsible for determining the most
effective means of controlling and managing soils that may remain on the tires of trucks and other equipment. Methods may include but are not limited to stone covered ingress/egress ramps to
the loading area(s), or a self-contained wash area to spray and remove excess soil from the trucks
prior to their leaving the subject property. Under no circumstances shall impacted soil from the excavation be permitted to be tracked onto roadways or sidewalk areas outside the perimeter of
the site.
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4.2 Off-Site Disposal of Contaminated Soils

Impacted soils that cannot be used on-site will be transported off-site. All contaminated soil disposal will be documented via a logbook and soil manifests. A representative of the owner will
sign the soil manifests as generator of the waste. All off site shipments of contaminated media will be documented as required in the Brownfields Agreement. The material will be transported under manifest to a suitable facility based on local, state, and federal requirements. Currently,
Chatham anticipates that soil removed from Excavation Area 4 and the cinder material from Excavation Area 1 will be transported to the Republic Subtitle D Landfill in Mount Gilead, North Carolina.
4.3 Utility Trenches

The larger utility trenches to be constructed and/or repaired are located on the northern side of the parcel where there were no surficial impacts. There are no plans to line the utility trenches in
these areas.
Utility trenches will be installed in Building 4, 6 and 12 where there is slab on grade construction.
The utility trenches in some of these areas may be equipped with slotted piping as part of the
vapor mitigation system. This is yet to be determined. It may be installed as a passive system which can be used as an active system if required.
If any other utility trenches bisect impacted or potentially impacted soils, clean fill will be installed over the native soils. If the clean soil is not practicable, a liner may be utilized to mark the base of
the native impacted soil to allow non HAZWOPER trained personnel to work in the trench areas. In addition, with the emplacement of a liner or clean fill material, any future repairs can be made
without notifying NCDENR or the use of HAZWOPER trained personnel.
4.4 Dust and Odor Control

For the protection of on-site workers and the community, dust and odors will be monitored during construction activities. The excavation areas will be watered down as needed to prevent dust
generation. Any trucks leaving the site containing impacted material will be covered and site
personnel will confirm that the trucks are not tracking material on to city streets creating a nuisance.

If addressing areas with potentially higher VOC concentrations becomes a concern, air perimeter monitoring may be conducted at the excavation limits as well as downwind at the property
boundary. The excavation perimeter and the property boundaries may be monitored using field screening equipment such as a PID or ppb RAE to confirm that VOCs are below applicable action levels. If VOCs are determined to be emanating from the excavation area VOCs will be managed
by wetting down the surface to minimize volatilization or if necessary, covering the excavation face with fill material. During extended periods of inactivity, the excavation areas will be secured
and the excavation face will be covered with fill material or poly to prevent nuisance odors.

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4.5 Imported Fill Material

Based on the current site plans, there are no plans to import fill material. The site appears to be
somewhat overbalanced, likely requiring the off-site transport of materials. However, in the event that fill material is required at this time or the future, procedures have been outlined in this EMP.
Soils to be potentially imported will be tested prior to transport to the site to confirm that no COCs are present. To evaluate the potential fill material, one composite sample from every 1,000 tons
of material will be collected for analysis. The sampling location will be skewed toward potential areas of impact based on visual and olfactory evidence. The soil will be analyzed for the presence
of volatile organic compounds (VOCs) according to EPA Method 8260, semi-volatile organic
compounds (SVOCs) according to EPA Method 8270, Resource Conservation and Recovery Act Methods according to Method 6010, and other potential COCs based on the type of facility.
4.6 Underground Storage Tanks

Assessment activities were conducted to locate any underground storage tanks (UST) sites on
the property. Based on Phase I and Phase II results, no USTs are present. If USTs are discovered during site development activities, NCDENR Brownfields will be notified. The tanks will be
excavated and closed in accordance with NCDENR, Division of Waste Management, UST Section requirements.

5.0 PETERS CREEK AND SITE LANDSCAPING PCE has been detected in the creek which bisects the northern side of the parcel. Landscape
shrubbery will be used to limit access to the creek by residents. The current landscape plan (Appendix B) will be amended to stipulate that the landscaping along the Creek will consist of
impenetrable bushes approximately four feet or more in height of sufficient density to prevent
access. As with the other landscaping, the bush barrier will be inspected a minimum of twice per year to confirm that the barrier is good condition, and additional plantings are not required. The
landscaping across the site will be inspected regularly to prevent exposure and erosion.

6.0 REPORTING Upon completion of the grading and construction activities, a summary report will be prepared
and submitted to the NCDENR. The report will document the disposition of the impacted soils
encountered, volumes, field screening results, off-site disposal volumes and manifests, monitoring well abandonment records, etc. The report will be submitted as soon as practicable
but consistent with the requirements of the Brownfields Agreement.
7.0 HEALTH AND SAFETY PLANS
A Health and Safety Plan (HASP) outlining the protective measures to be implemented by site
workers during construction in and around potentially contaminated media will be prepared for use on-site. An outline showing topics to be addressed is included in Appendix C. All contractors
will be required to either adhere to a HASP provided which addresses each of these topics, or
develop their own which meets or exceeds these requirements. Site workers which will be dealing with impacted soils will have 40-hour HAZWOPER Training in accordance with OSHA 1910.120.
Page 10

It is anticipated that HAZWOPER trained personnel will not be required for future maintenance activities, unless work is conducted outside established utility trenches or deeper than clean fill
material. If required, this will be stipulated in the plan provided to NCDENR prior to the start of on-
site activities.
8.0 SITE CONTACTS

During site construction activities, Mr. Jerry Deakle of Chatham Mill Ventures, LLC will serve as the site contact. Additional questions can be directed to Kathleen Roush of Apex Companies, LLC as needed. Contact information is below.
Primary Contact: Jerry Deakle
Chatham Mill Ventures, LLC
300 Blackwell Street, Suite 101-B Durham, NC 27701
[phone]
Secondary Contact: Kathleen Roush, LG
Apex Companies, LLC 136 Fairview Road, Suite 125 Mooresville, NC 28117
[phone] X21 Following site construction, a property management company will be contracted to be responsible
for on-going maintenance of systems and processes to comply with the Brownfields Agreement. The owner recognizes and accepts its ultimate responsibility for compliance with all aspects of the Brownfields Agreement. The property management company will assure compliance with this
SMP and, with the owner, provide addendums as required based on site conditions. The property management company has yet to be determined but that information will be provided to the
NCDENR as soon as practicable after the firm has been contracted.

9.0 REFERENCES
AMEC Environment & Infrastructure, Inc., Phase I Environmental Site Assessment, 800
Chatham Road Property, Winston-Salem, North Carolina, July 20, 2012. AMEC Environment & Infrastructure, Inc., Vapor Intrusion Assessment Report, 800
Chatham Road Property, Winston-Salem, North Carolina, August 31, 2012. AMEC Environment & Infrastructure, Inc., Report of Additional Soil and Groundwater
Assessment Activities, 800 Chatham Road Property, Winston-Salem, North Carolina, August 31, 2012.
MACTEC Engineering and Consulting, Inc., Generic Quality Assurance Project Plan: EPA Brownfields Activities, Conducted Under EPA Brownfields Cooperative Agreements:
BF95408408, BF95405608, and BF96413504. June 2010.

Page 11

MACTEC Engineering and Consulting, Inc., Report of Limited Soil and Groundwater Assessment, Twin City Industrial Center, 800 Chatham Road, Winston-Salem, North Carolina,
January 2009.
MACTEC Engineering and Consulting, Inc., Report of Phase I and II Environmental Site
Assessment, Twin City Industrial Center, 800 Chatham Road, Winston-Salem, North Carolina, May 2007.
MACTEC Engineering and Consulting, Inc., Report of Limited Vapor Intrusion Evaluation, Twin City Industrial Center, 800 Chatham Road, Winston-Salem, North Carolina, April 2012.
NCDENR, DWM, IHSB. Supplemental Guidelines for the Evaluation of Structural Vapor Intrusion Potential for Site Assessments and Remedial Actions Under the Inactive Sites Branch.
21 June 2011.
Soil Survey Staff, Natural Resources Conservation Service, United States Department of
Agriculture. Web Soil Survey. Available online at http://websoilsurvey.nrcs.usda.gov/. Accessed
[06/12/2012].
US Department of Housing and Urban Development. Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing. Chapter 7: Lead-Based Paint Inspection. 1997 Revision.
USEPA, 1993. Method for the Determination of Asbestos in Bulk Building Materials. EPA/600/R-93/116, July 1993.
USEPA Region 4, Brownfields Quality Assurance Project Plans (QAPPs), Interim Instructions, Generic QAPP & Site-Specific QAPP Addendum for Brownfields Site Assessments and/or Cleanups, Revision No. 3, July 13, 2010.

10.0 LIMITATIONS
This report was prepared by Apex Companies, LLC exclusively for Chatham Mill Ventures, LLC,
their authorized agents, and regulators. The quality of information, conclusions, and estimates
contained herein is consistent with the level of effort involved in Apex services and based on i) information available at the time of preparation, ii) data supplied by outside sources, and iii) the
assumptions, conditions, and qualification set forth in this report. This remedial plan is intended to be used by Chatham Mill Ventures, LLC for the 800 Chatham Road, Winston-Salem, North Carolina property, subject to the terms and conditions of its contract with Apex. Any other use of,
or reliance on, this report by any third party is at that party’s sole risk. The findings contained herein are relevant to the dates of the report and should not be relied upon
to represent conditions at later dates. In the event that changes in the nature, usage, or layout of the property or nearby properties are made, the conclusions and recommendations contained in this report may not be valid. If additional information becomes available, it should be provided to
Apex so the original conclusions and recommendations can be modified as necessary.
Page 12

FIGURES
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TABLE
Analyte Concentration Units IHSB Health Based
Standard
Arsenic 3.5 mg/Kg 0.61
Barium 37.6 mg/Kg 3,000
Cadmium 0.222J mg/Kg 14
Chromium 3.75 mg/Kg 24,000
Lead 3.53 mg/Kg 400
Mercury 0.00941J mg/Kg 2
Selenium <0.19 mg/Kg 78
Silver <0.0521 mg/Kg 78
Benzene 0.748 ug/Kg 1,100
Toluene 1.2 ug/Kg 820,000
Styrene 0.147 ug/Kg 870,000
Naphthalene 3,900 ug/Kg 3,600
2-Methylnaphthalene 13,000 ug/Kg 46,000
Acenaphthylene 99,000 ug/Kg NA
Acenaphthene 34,000 ug/Kg 680,000
Dibenzofuran 240,000 ug/Kg NA
Fluorene 170,000 ug/Kg 460,000
Phenanthrene 1,200,000 ug/Kg NA
Anthracene 250,000 ug/Kg 3,400
Carbazole 220,000 ug/Kg NA
Fluoranthene 860,000 ug/Kg 460,000
Pyrene 730,000 ug/Kg 340,000
Benzo(a)anthracene 360,000 ug/Kg 150
Chrysene 300,000 ug/Kg 15,000
Benzo(b)fluoranthene 330,000 ug/Kg 150
Benzo(k)fluoranthene 180,000 ug/Kg 1,500
Benzo(a)pyrene 250,000 ug/Kg 15
Indeno(1,2,3-cd)pyrene 190,000 ug/Kg 150
Dibenzo(a,h)anthracene 35,000 ug/Kg 15
Benzo(g,h,,i)perylene 160,000 ug/Kg NA
1,1'-Biphenyl 17,000 ug/Kg 10,000
NA - Standard not established
Values shown in bold exceed their respective goal
Semi-Volatile Organic Compounds
Metals
Table 1
Analytical Results - Building 4 Subfloor Material
Former Chatham Mills Facility
Winston-Salem, North Carolina
Volatile Organic Compounds

APPENDIX A
Historic Tables and Figures

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TABLES
Well ID TMW-2 TMW-3 TMW-4 MW-1 MW-2 MW-3
IHSB Residential
Vapor Intrusion
Screening Levels
(ug/L)
Date Collected 2/6/2007 2/6/2007 2/6/2007 9/17/2008 9/17/2008 9/17/2008
Acceptable
Groundwater
Concentrations
Chloroform BDL BDL 14 BDL 4.33 0.6 7.3
Cis-1,2-Dichloroethene 404 26 60 BDL 167 BDL NE
Tetrachloroethene 883 65 6,230 0.93 1,800 BDL 12
Trans-1,2-dichloroethene BDL BDL BDL BDL 2.57 BDL 74
Trichloroethene 50 16 123 BDL 193 BDL 1.1
Vinyl Chloride 41 BDL BDL BDL BDL BDL 1.5
Total VOCs 1,378 107 6,427 0.93 2,167 0.6
Notes:Prepared by/Date: CLK/12-28-10BOLD = values exceed Residential Acceptable Groundwater Concentration Checked by/Date: AMC/4-4-12
BDL = below detection limits
NA = Not Applicable
NE = Not Established
Votalite OrganicCompounds (ug/l)
SUMMARY OF GROUNDWATER ANALYTICAL RESULTS
TABLE 1
Twin City Industrial Center
Winston-Salem, North Carolina
AMEC Project 6262-08-1602
Report of Limited Vapor Intrusion Evaluation
Page 1 of 1
Parameter
Sample ID
Sample Location
Sample Date
Sample Depth
Acetone3 BDL BDL BDL 0.037 BDL 2.4 0.22 0.19 0.007 BDL 64 6.4
Benzene BDL BDL BDL 0.007 J BDL BDL BDL BDL 0.007 J BDL 0.031 0.00031
1,3-Butadiene BDL BDL BDL 0.007 3 BDL BDL BDL BDL BDL BDL 0.0042 8.10E-05
2-Butanone (MEK)BDL BDL BDL 0.14 BDL 1.1 J 0.81 0.46 0.002 J BDL 10.4 1
Carbon disulfide BDL BDL BDL 0.003 JB BDL BDL BDL BDL BDL BDL 1.46 0.15
Chloroform BDL BDL BDL BDL BDL 1.1 J BDL BDL BDL BDL 0.011 0.00011
Chloromethane BDL BDL BDL 0.003 J BDL BDL 0.034 J BDL BDL BDL 0.188 0.019
cis-1,2-Dichloroethene BDL 5.6 J BDL BDL BDL BDL BDL BDL BDL BDL NE NE
Ethylbenzene BDL BDL BDL 0.005 J BDL BDL BDL BDL 0.004 J BDL 0.097 0.00097
4-Ethyltoluene BDL BDL BDL 0.035 BDL BDL BDL BDL 0.006 J BDL NE NE
Heptane BDL BDL BDL 0.005 J BDL BDL 0.11 BDL 0.003 J BDL NE NE
n-Hexane BDL BDL BDL BDL 77 J BDL BDL BDL 0.007 J BDL 1.46 0.15
2-Hexanone BDL BDL BDL 0.025 BDL BDL 0.11 J BDL BDL BDL NE NE
Methylene Chloride BDL BDL BDL 0.012 230 4.9 3 0.16 B,3 0.15 B,3 BDL BDL 0.52 0.0052
2-Propanol3 BDL BDL BDL BDL BDL BDL 0.054 JB 0.055 JB BDL BDL NE NE
Propene BDL BDL BDL 0.014 BDL BDL 0.22 0.37 0.006 BDL NE NE
Styrene BDL BDL BDL 0.009 J BDL BDL BDL BDL BDL BDL 2 0.2
Tetrachloroethene (PCE)980 1,300 E 310 0.031 12,000 44 1.288 4 0.288 4 0.158 4 0.012 J,4 0.0834 0.0083
Toluene BDL BDL BDL 0.015 BDL 0.77 J BDL BDL 0.022 J,4 0.002 J 10.4 1
1,2,4-Trichlorobenzene BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.005 J 0.0042 0.00042
1,2,4-Trimethylbenzene BDL BDL BDL 0.049 BDL 1.5 J BDL BDL 0.005 BQL 0.0146 0.0015
1,3,5-Trimethylbenzene BDL BDL BDL 0.015 BDL BDL BDL BDL BDL BDL NE NE
2,2,4-Trimethylpentane BDL BDL BDL BDL BDL BDL BDL BDL 0.004 BDL NE NE
Xylenes (mixed)BDL BDL BDL 0.024 BDL 1.9 J BDL BDL 0.021 BDL 0.2 0.02
Notes:Prepared by/Date: CLK/12-28-10
1 = Acceptable Soil Gas Concentrations apply to the sub-slab samples VI-1 through VI-6.Checked by/Date: AMC/4-4-12
2 = Acceptable Indoor Air Quality Concentrations apply to the crawl space samples CV-1 thorugh CV-3.
3 = Compound is likely associated with laboratory contamination
4 = PCE and Toluen were detected in the upwind crawl space sample. The crawl sample analytical results have been corrected by subtracting the value found in the upwind sample.
B = Value is estimated because the compound was detected in the laboratory method blank
Bold Values exceed the February 2012 IHSB Residential Screening Levels-Acceptable Soil Gas or Indoor Air Concentrations, whichever apply.
J = Value is estimated at above the MDL but below the calculated PQL
N/a = Not applicable
NE = Not established
TABLE 2
CV-1VI-1
Building 12
10/29/2010
5
VI-2
Acceptable Soil
Gas
Concentrations1
Acceptable
Indoor Air
Concentrations2
Building 13
10/29/2010
5
VI-3
Building 15
10/29/2010
5
Building 21
10/29/2010
5
VI-5
Building 12B
10/29/2010
5 N/a
VI-6
Building 23
10/28/2010
5
Building 12
10/29/2010
N/a
Upwind outside
Building 12
10/29/2010
N/a
CV-1D
Building 12
10/29/2010
N/a
CV-2
Building 14
10/29/2010
AMEC Project 6262-08-1602
Winston-Salem, North Carolina
Twin City Industrial Center
Report of Vapor Intrusion Evaluation
SUMMARY OF SOIL VAPOR ANALYTICAL RESULTS
CV-3VI-4
IHSB Residential Vapor Intrusion
Screening Levels (mg/m3)Vapor Intrusion Analytical Results (mg/m3)
Page 1 of 1
Sample ID
Sample Location
Sample Date
Acetone 0.021 0.016 0.13 0.021 0.18 0.077 0.023 0.023 BDL 6.4
Benzene 0.002 0.002 0.002 0.002 0.002 0.009 0.003 0.003 BDL 0.00031
2-Butanone (MEK)0.002 0.002 0.008 0.002 0.007 0.024 0.004 0.003 BDL 1
Carbon disulfide BDL 0.002 0.011 0.005 0.009 BDL BDL BDL BDL 0.15
Chloromethane 0.003 0.003 0.004 0.003 0.003 BDL 0.002 0.002 BDL 0.019
Cyclohexane BDL BDL 0.033 BDL 0.042 BDL BDL BDL BDL NE
1,2-Dichloroethane BDL BDL 0.001 BDL BDL 0.011 BDL BDL BDL 9.40E-06
Dichlorodifluoromethane 0.007 J2 0.004 QL2 0.005 J2 0.005 J2 0.005 BDL 0.005 J2 BDL BDL 0.042
Ethylbenzene BDL BDL 0.002 0.002 0.002 BDL 0.002 0.002 BDL 0.00097
4-Ethyltoluene BDL 0.002 QL2 0.003 J2 BDL 0.002 QL2 BDL 0.003 J2 0.003 BDL NE
Heptane BDL BDL 0.002 BDL 0.002 0.035 BDL BDL BDL NE
n-Hexane 0.007 0.004 0.16 BDL 0.16 0.027 0.004 0.008 0.094 0.15
Methylene Chloride1 0.025 0.013 0.21 0.013 0.14 0.059 J2 0.030 J2 0.10 0.15 0.0052
2-Propanol BDL BDL BDL BDL BDL 0.083 J2 BDL 0.009 BDL NE
Propene 0.002 0.002 0.004 0.002 0.003 0.013 0.003 0.002 BDL NE
Styrene BDL BDL 0.001 BDL BDL BDL BDL BDL BDL 0.2
Tetrachloroethene (PCE)2 0.056 0.124 0.414 0.094 0.026 0.016 0.020 0.097 BDL 0.0083
Tetrahydrofuran BDL BDL 0.004 BDL 0.001 BDL BDL BDL BDL NE
Toluene 0.006 0.005 0.071 0.005 0.13 0.17 0.008 0.010 BDL 1
Light TPH BDL BDL 1.5 0.94 1.1 BDL BDL BDL BDL NE
Trichlorofluoromethane 0.006 0.004 0.004 0.006 BDL BDL 0.004 BDL BDL 0.15
1,2,4-Trimethylbenzene BDL BDL 0.004 J2 BDL BDL BDL 0.004 J2 BDL BDL 0.0015
2,2,4-Trimethylpentane BDL BDL BDL BDL BDL BDL BDL 0.007 BDL NE
Xylenes (mixed)BDL 0.006 0.008 0.006 0.006 0.022 0.009 0.008 BDL 0.02
Notes:Prepared by/Date: CLK/12-28-10
1 = Compound is likely associated with laboratory contamination Checked by/Date: AMC/4-4-12
2 = PCE was detected in the upwind sample AI-5 on November 11, 2010. The analytical results have been corrected by subtracting the value found in the upwind sample.
Bold Values exceed the February 2012 IHSB Residential Screening Levels-Indoor Air Concentrations.
J = Value is estimated at above the MDL but below the calculated PQL and was found in the laboratory control sample.
QL2 = The laboratory control sample exhibited high bias.
NE = Not established
Upwind SampleBuilding 12B/VI-5Building 13Building 12/VI-1
IHSB Residential
Vapor Intrusion
Screening Levels
(mg/m3)
Parameter
Acceptable Indoor
Air
Concentrations
Building 12/CV-1
11/11/2010 11/11/2010 11/11/2010 11/11/2010 11/15/2010
Building 6Building 23/VI-6Building 23/VI-6
11/11/2010 11/15/2010
AI-6 AI-6D AI-8 AI-9
Upwind
11/15/2010 11/15/2010
SUMMARY OF INDOOR AIR QUALITY ANALYTICAL RESULTS
TABLE 3
Twin City Industrial Center
AI-1 AI-2 AI-3 AI-5AI-4
Winston-Salem, North Carolina
AMEC Project 6262-08-1602
Page 1 of 1
FIGURE
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LEGENDVI-1 VAPOR INTRUSION SAMPLE LOCATIONCV-1 CRAWL SPACE SAMPLE LOCATIONCV-1/AI-1 CRAWL SPACE SAMPLE LOCATION/INDOOR AIR SAMPLE LOCATIONVI-1/AI-1 CRAWL SPACE SAMPLE LOCATION/INDOOR AIR SAMPLE LOCATION UPWIND SAMPLE LOCATIONAI-1 INDOOR AIR SAMPLE LOCATION

FIGURES

TABLES

Sample Location SF-1 SF-2 SF-3 SF-4 SF-5
Approximate Sample
Depth (feet bgs)10 10 10 10 13
Date Collected 3/17/2010 3/17/2010 3/17/2010 3/17/2010 3/17/2010
Acetone 0.0056J 0.0061J BDL BDL BDL 12,000 24
Tetrachloroethene 0.0020 0.072 1.0D 0.036 0.13 0.55 0.005
Trichloroethene BDL BDL 0.00050J 0.00082J 0.0018 2.8 0.018
Notes:
BOLD and SHADED = exceeds NCDENR IHSB Protection of Groundwater Preliminary SRG
BDL = below detection limits
bgs = below ground surface
D = Sample was Diluted
All results are expressed in milligrams per kilogram (mg/kg)
J = Estimated Concentration.The reported concentration is between the laboratory method detection limit (MDL) and the laboratoryMethod Reporting Limit.
The Method Reporting Limit (MRL) is equivalent to the practical quantitation limit.
NCDENR IHSB= North Carolina Department of Environment and Natural Resources Inactive Hazardous Sites Branch
SRG = Soil Remediation Goals as presented in the IHSB Section Guidelines for Assessment and Cleanup dated October 2009 and updated in January 2010.
BOLD = exceeds NCDENR IHSB Health-Based Soil Remediation Goals
IHSB Protection of
Groundwater SRG
(mg/kg)
IHSB Health-Based
SRG (mg/kg)
Volatile Organic Compounds (mg/kg)
TABLE 1
SUMMARY OF SOIL ANALYTICAL RESULTS
Report of Limited Soil Assessment
Twin City Industrial Center
Winston-Salem, North Carolina
MACTEC Project No. 6262-08-1602
Prepared By: KHL Date: 7/7/10
Checked By: CLK Date: 7/7/10

AMEC Environment & Infrastructure, Inc. Tel – [phone]
4021 Stirrup Creek Drive, Suite 100 Fax – [phone]
Durham, NC 27703 www.amec.com

October 29, 2012

Ms. Lisa Taber
Project Manager/Hydrogeologist
NC Brownfields Program
Division of Waste Management
North Carolina Department of Environment and Natural Resources
1646 Mail Service Center
Raleigh, North Carolina 27699

Re: SUBMITTAL OF GROUNDWATER FLOW DATA
FORMER CHATHAM MILL SITE
800 CHATHAM RD
WINSTON-SALEM, FORSYTH COUNTY, NORTH CAROLINA

Dear Ms. Taber:

AMEC Environment & Infrastructure, Inc. (AMEC) completed soil and groundwater sampling at
the former Chatham Mill site in July 2012. A report summarizing our results was submitted to
your attention. However, prior to the submittal of the report, the locations and elevations of the
groundwater monitoring wells had not been surveyed. Therefore, the report did not include a
potentiometric map showing the water table surface.

AMEC received the survey data and has updated the water elevation data table and prepared a
water table potentiometric map for the well gauging event conducted on July 17, 2012. As
expected, groundwater is flowing to the northwest, toward the adjacent creek. The groundwater
gradient across the site is approximately 0.03 ft/ft. If you have any questions regarding this
information, please call me at [phone].

Sincerely,
AMEC Environment & Infrastructure, Inc.

Kathleen A. Roush, L.G., RSM
Environmental Dept. Manager

Attachments: Table 4, Figure 1

Cc: Jerry Deakle – Chatham Mill Ventures, LLC
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0
7
/
1
2
/
1
2
4.
3
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.
7

<
1
.
4
42
.
5
13
.
2

2
1
.
8

<
0
.
1
2

<
1
4

1
0
3
GP
-
1
0

0
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1
.
5

0
7
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1
2
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1
2
4.
5
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.
5

<
1
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2
32
.
2
10
9

1
0
0

0
.
1
0

1
4
.
1

3
1
7
GP
-
1
1

-
-

-
-

N
S

N
S

N
S

N
S

N
S

N
S

N
S

N
S

N
S
GP
-
1
2

2
-
4

0
7
/
1
3
/
1
2
2.
1
0.
6
3

<
0
.
4
6
27
.
2
7.
4

1
6
.
5

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0
.
0
9
4

5
.
3

1
1
.
8
GP
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3

0
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2

0
7
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1
0
/
1
2
3.
5
<1
.
4

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1
.
1
23
.
6
8.
2

1
3
.
2

<
0
.
0
9
3

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1
1

1
7
.
1
GP
-
1
4

1
0
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1
2

0
7
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2
/
1
2
2.
8
2.
2

<
0
.
9
5
72
.
0
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.
9

1
0
.
1

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0
.
0
9
7

1
0
.
4

2
1
.
3
GP
-
1
5

1
8
-
2
0

0
7
/
1
1
/
1
2

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R
GP
-
1
6

1
2
-
1
4

0
7
/
1
6
/
1
2

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R
GP
-
1
7

4
-
5

0
7
/
1
3
/
1
2

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R
GP
-
1
8

4
-
5

0
7
/
1
3
/
1
2

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R
GP
-
1
9

0
-
5

0
7
/
1
3
/
1
2

<
2
.
2

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1
.
1

<
0
.
9
0
43
.
1
10
.
6

1
3
.
0

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0
.
1
0

<
9
.
0

1
6
.
4
GP
-
1
9

1
0
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1
5

0
7
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1
3
/
1
2
3.
1
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2

<
0
.
9
7
49
.
0
17
.
1

1
3
.
8

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0
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1
0

1
1
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4

2
2
.
8
GP
-
1
9

2
0
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2
5

0
7
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1
3
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1
2

<
5
.
7

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2
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9

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2
.
3
15
.
2
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4

7
.
1

<
0
.
1
1

1
0
5

4
2
Du
p
-
1

N
/
a

0
7
/
1
0
/
1
2
8.
5
<1
.
4
3.
3

2
5
.
9
22
2
27
7
0.
2
9

1
8
.
8

5
2
1
Du
p
-
2

N
/
a

0
7
/
1
1
/
1
2
14
.
9
<2
.
4

<
1
.
9
12
.
9
14
.
7

2
5
.
7

<
0
.
0
9
6

<
1
9

6
0
.
9
Du
p
-
3

N
/
a

0
7
/
1
2
/
1
2
2.
7
1.
1

<
0
.
6
6
31
.
1
<4
.
1

9
.
7

<
0
.
0
9
2

1
0
.
1

1
7
.
1
Du
p
-
4

N
/
a

0
7
/
1
3
/
1
2

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R

N
R
Du
p
-
5

N
/
a

0
7
/
1
6
/
1
2
<8
.
4

<
4
.
2

<
3
.
4
16
.
9
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1

1
3
.
5

<
0
.
1
0

<
3
4

3
0
.
5
No
t
e
s
:
Va
l
u
e
s

r
e
p
o
r
t
e
d

i
n

m
i
l
l
i
g
r
a
m
s

p
e
r

k
i
l
o
g
r
a
m

(
m
g
/
k
g
)
Bo
l
d

r
e
s
u
l
t
s

i
n
d
i
c
a
t
e

a
n
a
l
y
t
e

d
e
t
e
c
t
i
o
n

a
b
o
v
e

t
h
e

I
HS
B

P
r
o
t
e
c
t
i
o
n

o
f

G
r
o
u
n
d
w
a
t
e
r

S
R
G
/
I
H
S
B

R
e
s
i
d
e
n
t
i
a
l

SR
G
NR

-
A
n
a
l
y
s
i
s

n
o
t

r
e
q
u
e
s
t
e
d
NS

-

N
o
t

s
a
m
p
l
e
d
Pr
i
o
r
i
t
y

P
o
l
l
u
t
a
n
t

M
e
t
a
l
s
IH
S
B

P
r
o
t
e
c
t
i
o
n

o
f

G
r
o
u
n
d
w
a
t
e
r

S
R
G
IH
S
B

R
e
s
i
d
e
n
t
i
a
l

S
R
G
IH
S
B

I
n
d
u
s
t
r
i
a
l

S
R
G
Sa
m
p
l
e

I
D
Sa
m
p
l
e

De
p
t
h

(
f
e
e
t
)
Da
t
e

Sa
m
p
l
e
d
IH
S
B

P
G
W

S
R
G

-

I
n
a
c
t
i
v
e

H
a
z
a
r
d
o
u
s

S
i
t
e
s

B
r
a
n
c
h

P
r
o
t
ec
t
i
o
n

o
f

G
r
o
u
n
d
w
a
t
e
r

S
o
i
l

R
e
m
e
d
i
a
t
i
o
n

G
o
a
l
s
IH
S
B

R
e
s
i
d
e
n
t
i
a
l

a
n
d

I
n
d
u
s
t
r
i
a
l

P
r
e
l
i
m
i
n
a
r
y

H
e
a
l
t
h
-
Ba
s
e
d

S
o
i
l

R
e
m
e
d
i
a
t
i
o
n

G
o
a
l
s
!(
!(
!(
!(
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!(
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!(!(!(
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!
!
!
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!
!
Figure DR:

C
H
K
:
DATE:
SO
I
L

A
N
D

G
R
O
U
N
D
W
A
T
E
R
S
A
M
P
L
E

L
O
C
A
T
I
O
N

M
A
P
3 A. Kellogg K. Roush8-27-2012CLIENT:PROJ.:568940000
TI
T
L
E
:
SCALE:1" = 80'
SI
T
E
:
AM
E
C

E
n
v
i
r
o
n
m
e
n
t

&

I
n
f
r
a
s
t
r
u
c
t
u
r
e
,

I
n
c
.
40
2
1

S
t
i
r
r
u
p

C
r
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e
k

D
r
i
v
e
,

S
u
i
t
e

1
0
0
Du
r
h
a
m
,

N
C

2
7
7
0
3
(9
1
9
)

3
8
1
-
9
9
0
0
LOCATION:P:\1RAL Projects\ProjectFiles\Chatham Rd BFA\GIS Da ta\GW assessmentChatham Mill Ventures, LLC Durham, North Carolina
0
16
0
80
Fe
e
t
Legend !Type II Monitoring Well Location !(Soil Boring Location³
FO
R
M
E
R

C
H
A
T
H
A
M

M
I
L
L

S
I
T
E
80
0

C
H
A
T
H
A
M

R
O
A
D
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N
S
T
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N
-
S
A
L
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M
,

N
C
GP
-
3
MW
-
6
/
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P
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5
MW
-
7
/
G
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-
4
GP
-
2
GP
-
1
5
GP
-
1
4
GP-19
GP
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1
0
GP
-
1
3
GP
-
8
A
GP
-
8
C
GP
-
8
D
GP
-
8
B
GP
-
6
A
GP
-
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C
GP
-
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D
GP
-
1
7
GP
-
6
C
GP
-
7
A
GP
-
7
B
GP
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7
C
GP
-
7
D
GP
-
1
8
MW
-
5
MW
-
1
MW-4/GP-12
MW
-
1
0
MW
-
3
MW
-
9
MW
-
8
MW
-
2
GP
-
1
1
GP
-
9
GP
-
1
6
GP
-
1
!(
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C H A T H A M
N
O
R
T
H
W
E
S
T
B RO A D
N
O
R
T H W E S T Figure DR:

C
H
K
:
DATE:
SO
I
L

A
N
A
L
Y
T
I
C
A
L

D
A
T
A
EX
C
E
E
D
A
N
C
E

M
A
P
4 A. Kellogg K. Roush8-27-2012CLIENT:PROJ.:568940000
TI
T
L
E
:
SCALE:1" = 80'
SI
T
E
:
AM
E
C

E
n
v
i
r
o
n
m
e
n
t

&

I
n
f
r
a
s
t
r
u
c
t
u
r
e
,

I
n
c
.
40
2
1

S
t
i
r
r
u
p

C
r
e
e
k

D
r
i
v
e
,

S
u
i
t
e

1
0
0
Du
r
h
a
m
,

N
C

2
7
7
0
3
(9
1
9
)

3
8
1
-
9
9
0
0
LOCATION:P:\1RAL Projects\ProjectFiles\Chatham Rd BFA\GIS Da ta\GW assessmentChatham Mill Ventures, LLC Durham, North Carolina
0
16
0
80
Fe
e
t
Legend !(Soil Boring Location Streets³
FO
R
M
E
R

C
H
A
T
H
A
M

M
I
L
L

S
I
T
E
80
0

C
H
A
T
H
A
M

R
O
A
D
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N
S
T
O
N
-
S
A
L
E
M
,

N
C
GP
-
1
1
NS
GP
-
1
8

(
4
-
5
)
NE
GP
-
3
PC
E
TC
E
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r
o
m
i
u
m
(2
-
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)
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0
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0
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6.
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6
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1
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s
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)
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3
10
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1
0.
0
8
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7
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1

(
8
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1
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)
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5
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(1
8
-
2
0
'
)
0.
4
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1
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6
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2
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1
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2
5
9
4.
0
3
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4
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s
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'
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1
6
6
2.
8
72
.
0
GP-9 PCE Arsenic Chromium(0-1.5')0.0115 4.3 42.5 GP-19 Arsenic Chromium(0-5')<2.2 43.1(10-15')3.1 49.0(20-25')<5.7 15.2 GP-12 Arsenic Chromium(2-4')2.1 27.2
GP
-
1
0
PC
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n
z
o
(
a
)
p
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r
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n
e
Be
n
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)
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l
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r
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n
t
h
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n
e
Ar
s
e
n
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c
Ch
r
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m
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u
m
(0-1.5')0.0823 0.109 0.158 4.5 32.2
GP
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1
3
PC
E
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s
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n
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c
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m
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'
)
0.
3
3
7

J
3.
5
23
.
6
GP
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*
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n
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l

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0
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1
6
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0.
0
6
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9
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.
3
GP
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5
'
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7
8
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6
*
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s
-
1
,
2
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D
C
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TC
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n
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o
(
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)
p
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r
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e
Be
n
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o
(
a
)
f
l
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r
a
n
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h
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n
e
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b
e
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z
o
(
a
,
h
)
a
n
t
h
r
a
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n
e
In
d
e
n
o
(
1
,
2
,
3
-
c
d
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p
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5
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0
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2
0
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0
4
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4
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1
6
7
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1
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3
GP
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7
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0.
0
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2
2

J
1.
3
5
0.
0
1
9
3
5.
0
19
.
2
No
t
e
s
:
Al
l

u
n
i
t
s

a
r
e

i
n

m
i
l
l
i
g
r
a
m
s

p
e
r

k
i
l
o
g
r
a
m

(
m
g
/
k
g
)
PC
E

=

T
e
t
r
a
c
h
l
o
r
o
e
t
h
y
l
e
n
e
,

T
C
E

=

T
r
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
DC
E

=

D
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
,

C
T

=

C
a
r
b
o
n

T
e
t
r
a
c
h
l
o
r
i
de
DC
A

=

D
i
c
h
l
o
r
o
e
t
h
a
n
e
J
=

E
s
t
i
m
a
t
e
d

v
a
l
u
e

b
e
l
o
w

t
h
e

P
r
a
c
t
i
c
a
l

Q
u
a
n
t
i
t
a
t
i
o
n

Lim
i
t
NE

=

N
o

r
e
g
u
l
a
t
o
r
y

e
x
c
e
e
d
a
n
c
e
s
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APPENDIX B
Site Plats

APPENDIX C
Health and Safety Plan Elements

i
FORMER CHATHAM MILL VENTURES SITE
HEALTH AND SAFETY PLAN
EXAMPLE TABLE OF CONTENTS

SECTION PAGE
INTRODUCTION 1
1.0 EMERGENCY RESPONSE/PLANNING 1
2.0 ORGANIZATION STRUCTURE 3
3.0 SITE HISTORY AND DESCRIPTION 4
4.0 WORK PLAN ELEMENTS 5
5.0 HAZARD ANALYSIS AND CONTROL MEASURES 5
6.0 ENVIRONMENTAL MONITORING PROGRAM 8
7.0 EXCAVATION ACTIVITIES 9
8.0 ENVIRONMENTAL, SAFETY AND HEALTH
ROLES AND RESPONSIBILITIES OF PROJECT PERSONNEL 11
9.0 PERSONAL PROTECTIVE EQUIPMENT (PPE) AND CLOTHING 13
10.0 PROJECT STANDARD OPERATING PROCEDURES AND PRACTICES 15
11.0 VIOLATIONS OF THE HASP 18
12.0 TRAINING REQUIREMENTS 18
13.0 MEDICAL SURVEILLANCE 19
14.0 RECORD KEEPING REQUIREMENTS 23
15.0 WORK ZONES/SITE CONTROL 24
16.0 UNDERGROUND UTILITIES 24
17.0 DECONTAMINATION PROCEDURES 25
18.0 COMMUNITY HEALTH AND SAFETY 26
APPENDICES