HomeMy WebLinkAbout25095_Colwick Road BF Assessment WP_20221115EXPERIENCED CUSTOMER FOCUSED INNOVATIVE
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November 15, 2022
Mr. William Schmithorst, Brownfields Project Manager North Carolina Department of Environmental Quality
Division of Waste Management, Brownfield Program
Mail Service Center 1646 Raleigh, North Carolina 27699-1646
Subject: Brownfields Assessment Work Plan
Colwick Road Property
4313 - 4317 Colwick Road, Charlotte, North Carolina
Mid-Atlantic Project #021H1590.00
Brownfields Project #25095-21-060
Dear Bill:
On behalf of Colwick Development, LLC (the Prospective Developer or PD), Mid-Atlantic
Associates, Inc. (Mid-Atlantic) has prepared this Brownfields Assessment Work Plan
(Work Plan) for the Colwick Road Brownfields property (Brownfields Project No. 25095-
21-060) for your review, comment, and approval. The Brownfields property is located at
4313 and 4317 Colwick Road, Mecklenburg County, North Carolina (Site). The Site
consists of one approximate 1.69-acre parcel (Parcel Identification No. 157-172-22) of
land located in a mixed residential and commercial area of Charlotte. A Site location map
is included as Drawing 1.
This Work Plan has been prepared and submitted to satisfy the requirements identified
during a recent data gap conference call with North Carolina Department of
Environmental Quality (NCDEQ), Mid-Atlantic, and Colwick Development, LLC personnel
concerning proposed future redevelopment and the PD’s pursuit of a Brownfields
Agreement (BFA).
1.0 INTRODUCTION & BACKGROUND
The Site is situated on approximately 1.69 acres of land and has recently been
conditionally rezoned as Mixed Use Development District (MUDD) by the City of Charlotte
Planning Department. Rezoning of the Site was requested based on the proposed
1125 E. Morehead Street, Suite 104
Charlotte, NC 28204-2849
Office: 980. 585.1271
Facsimile: 980. 585.1272
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 2
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
redevelopment of the Brownfields property, which will include the construction of a
podium-style multifamily building containing retail spaces on the first floor and
approximately 250 residential units on additional above ground floors. The proposed
redevelopment also includes the construction of an associated parking deck.
The Site was historically undeveloped wooded land in the earliest historical source
reviewed, a 1938 aerial photograph, until a portion of the Brownfields property was
developed with an apartment complex and associated asphalt parking lot between 1965
and 1998. The apartment complex was demolished in 1998 and the asphalt parking lot is
the only remaining development on the Site. Properties to the west, southwest, and south
include current and/or former dry-cleaning and automotive facilities and associated
releases of chlorinated solvents and petroleum compounds, respectively. The Site and
surrounding area are depicted on Drawing 2.
Wood conducted assessment activities at the Site in August 2021. As part of assessment
activities, Wood advanced eight (8) soil borings for the collection of soil samples.
Additionally, Wood collected one soil vapor sample from soil boring B-8. Soil and soil
vapor samples were submitted for laboratory analysis of volatile organic compounds
(VOCs). Results of soil sampling indicated that low-level detections of VOCs were
detected in samples collected but were below NCDEQ Residential Preliminary Soil
Remediation Goals (PSRGs). Results of the soil vapor sampling from B-8 indicated that
several VOCs were detected above laboratory method detection limits. Wood ran the
highest concentrations of soil vapor compounds collected on the Site and adjacent non-
Brownfields property through the NCDEQ Risk Calculator. Risk calculator results for this
“worst case” scenario indicated that unacceptable risk levels were calculated under both
a residential and non-residential use scenario.
As part of Phase I Environmental Assessment (ESA) activities conducted concurrently in
August 2021, Mid-Atlantic identified the following environmental findings in connection
with the Site:
• Four dry-cleaning facilities were identified within 1,000 feet of the Brownfields
property. The closest facility was identified as Tyson Cleaners, which is
topographically upgradient of the Site, and did not have records of historical dry-
cleaning compound releases. The remaining three dry-cleaner facilities were
located topographically downgradient of the Site.
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 3
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
• Cunningham Cleaners, which is located approximately 427 feet southwest and
upgradient from the Site is currently enrolled in the Dry-Cleaning Solvent
Cleanup Act (DSCA) Program following a chlorinated solvent release in 1995.
Assessment activities indicate that groundwater impacts extend off-site towards
the Brownfields property.
• Three commercial Leaking Underground Storage Tank (LUST) releases and two
residential LUST releases were identified within 500 feet of the Site at properties
located topographically downgradient of the Brownfields property. Soil and
groundwater deed restrictions are recorded at each LUST property.
Following completion of Phase I ESA activities in August 2021, the PD applied for entry
into the Brownfields Program and received a Letter of Eligibility (LOE) on February 24,
2022. The proposed Brownfields assessment activities described herein have been
prepared in accordance with data gaps identified during a recent conference call between
NCDEQ and the PD. Data gaps identified to be addressed prior to redevelopment include
the collection of additional soil and soil vapor samples as well as the collection of
groundwater samples prior to the start of redevelopment. Previous soil samples collected
were limited to VOCs and did not include a typical suite of Brownfields analyses.
2.0 SCOPE OF WORK
Mid-Atlantic will mobilize to the Site to collect soil, groundwater, and soil vapor samples
for laboratory analysis to address data gaps and evaluate the potential impacts prior to
redevelopment of the Brownfields property. The sampling will be conducted in
accordance with NCDEQ Inactive Hazardous Sites Branch (IHSB) Guidelines for
Assessment and Cleanup of Contaminated Sites (Guidelines – Version 2) dated January
2020, NCDEQ Division of Waste Management (DWM) Vapor Intrusion Guidance dated
March 2018, and most recent versions of the USEPA Region IV Science and Ecosystem
Support Division (SESD) Field Branches Quality System and Technical Procedures
guidelines.
Mid-Atlantic proposes to advance up to ten (10) soil borings (SB-1 through SB-10) for the
collection of soil samples and up to six (6) soil borings for the installation of temporary
monitoring wells (TMW-1 through TMW-6) for the collection of groundwater samples.
Additionally, Mid-Atlantic will advance up to six (6) soil vapor borings for the collection of
soil vapor samples (SG-1 through SG-6) within the footprint of the proposed multi-family
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 4
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
residential structure. The sampling locations are summarized in Tables 1 through 3,
depicted on Drawing 3, and described below:
• Eight (8) soil borings (SB-1 through SB-8) will be advanced across the Site in
locations previously assessed by Wood;
• One (1) soil boring (SB-9) will be advanced along the southeastern boundary of
the Site;
• One (1) soil boring (SB-10) will be advanced along the northwestern boundary of
the Site;
• Three (3) temporary monitoring wells (TMW-1 through TMW-3) will be advanced
along the southwestern property boundary to determine if impacts from nearby off-
site releases are present on the Site;
• Three (3) temporary monitoring wells (TMW-4 through TMW-6) will be advanced
along the northeastern property boundary to determine if additional off-site impacts
are present on the Site; and
• Six (6) soil vapor samples (SG-1 through SG-6) will be installed within the footprint
of the proposed multi-family to determine if impacted soil and/or groundwater
contain constituents of concern in concentrations that represent a potential vapor
intrusion (VI) risk.
Each sample location will be documented in the field using a hand-held global position
system (GPS) unit. Coordinates will be documented in the field notes and transferred to
site drawings for sampling location documentation and subsequent reporting.
3.0 RECEPTOR SURVEY
Mid-Atlantic will perform a Brownfields receptor survey in accordance with NCDEQ
Brownfields guidance. The receptor survey will include information about land use in the
near vicinity including zoning and identify water supply wells, basements, utility manways
and chases, storm sewers, other underground utilities, drains, and surface water within a
1,500-foot radius of the Brownfield property boundary. Additionally, Mid-Atlantic will
review applicable resources for potential wells in the area and, if warranted, contact utility
companies for information concerning underground utilities in the immediate area of the
Brownfields property. The receptor survey will be completed using the most current
version of the Brownfields Property Receptor Survey form.
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 5
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
4.0 PROPOSED BROWNFIELDS ASSESSMENT ACTIVITIES
4.1 Soil Sampling Methodology
The soil borings will be advanced using a track-mounted Geoprobe® drill rig to depths up
to approximately 15 feet below ground surface (ft bgs) via direct-push technology (DPT)
drilling methods. Previous assessment activities have not included the collection of
groundwater samples. As such, the depth to water for the Site is unknown and soil borings
will not be advanced further than the perceived water table during the collection of soil
samples. Mid-Atlantic will instruct the drilling subcontractor to collect continuous soil
samples from each boring using acetate lined macrocore sleeves. Soil samples from soil
boring advancement will be logged for lithological description and field screened for
indication of potential impacts by observation for staining, unusual odors, and the
presence of organic vapors using a calibrated photoionization detector (PID). Based on
field screening results, Mid-Atlantic will select one (1) soil sample from each boring to
submit for laboratory analysis. If no evidence of impacts are present, Mid-Atlantic will
collect a soil sample from a surficial depth (i.e., 0 to 2 ft bgs).
The soil samples will be collected into laboratory-supplied glassware and placed on ice
for delivery under chain-of-custody protocol to a North Carolina accredited laboratory. Soil
samples collected will be analyzed for VOCs by EPA Method 8260, semi-VOCs (SVOCs)
by EPA Method 8270, and Resource Conservation and Recovery Act (RCRA) metals plus
hexavalent chromium by EPA Methods 6020/7471/7199.
4.2 Groundwater Sampling Methodology
The temporary monitoring wells will be advanced past the water table using a track-
mounted Geoprobe® drill rig to depths up to approximately 30 ft bgs via DPT and/or
hollow-stem auger (HSA) drilling methods. The temporary monitoring wells will be
constructed of 1-inch polyvinyl chloride riser pipe and up to 15 feet of 0.010-inch slotted
well screen set to bracket the water table. A sand filter pack will be placed from the bottom
of the borings to approximately 2 feet above the top of the well screens. The wells will
then be completed by placing a minimum 2 feet hydrated bentonite seal above the sand
filter pack. Drill cuttings will be thinly spread and dispersed on discrete portions of the
Site.
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 6
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
Once the temporary monitoring wells are installed, the wells will be developed by purging
at least three volumes of water from each. Following development, the temporary
monitoring wells will be allowed to equilibrate to static conditions for a minimum of 24
hours and a decontaminated electronic water level indicator will be used to measure the
depth to the water table relative to the ground surface and to the top of the well casing in
each well. The elevation of the top of casing for each well will be surveyed relative to an
arbitrary on-site datum. Using the depth to water and top of casing survey measurements,
Mid-Atlantic will calculate the elevation of groundwater at each well location and estimate
groundwater flow direction at the Site.
Following the collection of water level readings, Mid-Atlantic will collect groundwater
samples from the temporary monitoring wells utilizing low flow/low stress purging
techniques using a peristaltic pump and dedicated polyethylene tubing. The intake point
of the pump tubing will be placed in the approximate mid-portion of the screened interval
of the well purged at a rate no greater than 200 milliliters per minute (mL/min). Mid-Atlantic
will utilize water quality meters to collect measurements of pH, temperature, dissolved
oxygen, oxidation reduction potential, turbidity, and specific conductivity at three to five-
minute intervals during the purging process. Pre-sampling purging will be considered
complete when the field parameters stabilize (pH ± 0.1 SU, conductivity varies no more
than 5%, and turbidity is less than 10 Nephelometric Turbidity Units [NTUs]). Groundwater
samples will be collected directly into laboratory supplied sample containers using the
“soda straw” method to minimize the potential for volatile compound loss through the
peristaltic pump head. The groundwater samples will be collected into laboratory-supplied
glassware and placed on ice for delivery under chain-of-custody protocol to a North
Carolina accredited laboratory. Groundwater samples collected will be analyzed for VOCs
by EPA Method 8260, SVOCs by EPA Method 8270, and RCRA metals by EPA Methods
6020/7471. One groundwater sample will also be submitted for analysis of hexavalent
chromium by EPA Method 7199.
4.3 Soil Vapor Sampling Methodology
The soil vapor implants will be installed using a track-mounted Geoprobe® and DPT
drilling methods. As mentioned previously, the depth to water at the Site is unknown. As
such, the soil vapor implants will be installed to a proposed minimum depth of
approximately 6 ft bgs. The implant depths will be adjusted based on specific depth to
groundwater encountered during temporary monitoring well installation at the Site. If
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 7
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
groundwater is encountered above 6 ft bgs, Mid-Atlantic will consult NCDEQ to determine
if a soil vapor sample should be collected.
The soil vapor implants will be installed using 6-inch stainless steel soil vapor probes
which will be inserted to the bottom of each boring and attached to 1/8-inch diameter
Nylaflow® tubing to extend above the ground surface for sample collection. A sand filter
pack will be installed in the annulus of the boring to cover 6-inches above the top of the
soil vapor probe followed by a hydrated bentonite seal in the remainder of the borehole
to the ground surface. Following installation of the soil vapor implants, Mid-Atlantic will
allow the soil vapor probes to equilibrate for at least 24 hours prior to conducting a shut-
in test, leak check, and collecting the soil vapor samples.
Mid-Atlantic will conduct leak checks at each soil vapor sampling location by utilizing
helium as the tracer compound, which will be introduced through a shroud over the probe
and sampling train. Helium will be introduced into the shroud, which will encompass the
entire sampling train, to a minimum concentration of 50% as measured using a LandTech
Gem™ 5000 helium detector. With the canister valve closed, Mid-Atlantic will conduct a
leak check sample using a LandTech Gem™ 5000 helium detector to check for the
presence of helium from air collected in the Tedlar® bag using the specified helium
detector. Using a 60-milliliter syringe connected to the tubing, Mid-Atlantic will collect
three purge volumes from each sampling implant into the Tedlar® bag and field screen
each Tedlar® bag for integrity (absence of Helium) prior to opening the sampling train
between the Tedlar® bag and the Summa canister. A helium concentration of less than
10% in the shroud will be considered a valid leak check. Helium concentrations in the
shroud, along with concentrations from each purge volume will be recorded in the field
notes. A shut-in test will also be conducted on the sampling process lines to ensure an
air-tight connection by applying vacuum pressure to the lines and observing for vacuum
pressure loss.
Following successful shut-in tests and leak check to verify sample integrity, the soil vapor
samples will be collected using laboratory-supplied 1-Liter SIM-certified Summa canisters
with calibrated flow regulators set to 100 milliliters per minute (mL/min) to avoid sample
short circuiting and to further ensure sample integrity. Per DWM VI Guidance, samples
that have lost greater than 10% volume from the initial lab recorded volumes will not be
used. Prior to sampling, vacuum readings, Summa identification and flow controller
identification for each sample will be recorded in the field notes. Once the field
documentation is complete, the sample train will be opened to the Summa flow controller
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 8
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
and the Summa canister will be opened to allow collection of soil gas volume. Sampling
will be deemed complete when the flow controller exhibits between -3 and -5 inches of
mercury. Following sample collection, the Summa canisters will be closed, and the final
vacuum reading and sampling time intervals will be recorded on the canister tag and on
the laboratory chain-of-custody form. Samples will be delivered under chain-of-custody
protocol to a North Carolina laboratory for analysis by VOCs plus naphthalene by EPA
Method TO-15.
5.0 LABORATORY QA/QC
For quality assurance and quality control purposes (QA/QC), Mid-Atlantic will collect up
to one (1) duplicate soil sample, one (1) duplicate groundwater sample, and one (1)
duplicate soil vapor sample. Duplicate samples will be submitted for the same laboratory
analysis as the parent samples. Additionally, Mid-Atlantic will request that the laboratory
include a groundwater trip blank for VOC analysis to ensure no cross-contamination was
encountered during field handling and shipping of the samples. Samples submitted for
laboratory analysis will include an adequate sample volume for laboratory matrix spike
(MS) and matrix spike duplicate (MSD) analysis. Nondedicated equipment and tools will
be decontaminated prior to use at each soil boring and temporary monitoring well location.
Laboratory QA/QC procedures will be employed to ensure appropriate sample handling
and analysis and to aid in the review and validation of the analytical data. Mid-Atlantic will
request that the laboratory include estimated concentrations for compounds that are
detected at levels above the laboratory method detection limit, but below the laboratory
reporting limit (J flags).
The laboratory analytical data report and QA package for each group of samples
submitted to and analyzed by the subcontracted laboratory will be provided in an
appendix to the final report. Laboratory QA data consistent with Level II documentation
will be provided for this project.
6.0 INVESTIGATIVE DERIVED WASTE MANAGEMENT
Investigative derived waste (IDW) generated during the proposed Brownfields
assessment activities will be managed in general accordance with NCDEQ IHSB
Guidelines for Assessment and Cleanup. Soil collected from soil borings will be returned
to the remaining boring annulus, filled with bentonite chips, and hydrated to close the
boring. Based on results of the Brownfields assessment activities, soil encountered during
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 9
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
redevelopment activities will be handled in accordance with an Environmental
Management Plan that will be submitted under separate cover for NCDEQ approval.
7.0 REPORTING
Based on driller availability, Mid-Atlantic anticipates conducting the assessment activities
in late November 2022. Mid-Atlantic anticipates receipt of laboratory analytical data within
ten (10) days of sampling upon receipt of laboratory analysis, Mid-Atlantic will prepare a
written Brownfields Assessment Report summarizing our field procedures and findings,
including copies of the laboratory documentation, field forms, supporting tables and
figures, and risk calculator forms. The Brownfields Assessment Report is anticipated to
be submitted to NCDEQ within two weeks of laboratory analytical results. The report will
be sealed by a North Carolina Licensed Geologist or Professional Engineer.
Mid-Atlantic appreciates the opportunity to provide this Work Plan for consideration.
Please contact the undersigned if there are questions concerning our proposed approach.
With best regards,
MID-ATLANTIC ASSOCIATES, INC.
Greg D. Icenhour, P.G., MBA Shane Sisco, P.G.
Principal Geologist Project Hydrogeologist
Attachments: Tables
Table 1 – Proposed Soil Sampling Matrix
Table 2 – Proposed Groundwater Sampling Matrix
Table 3 – Proposed Soil Vapor Sampling Matrix
Drawings
Drawing 1 – Topographic Site Map
Drawing 2 – Site and Surrounding Area Map
Drawing 3 – Proposed Sample Location Map
Brownfields Assessment Work Plan November 15, 2022 Colwick Road Property – Charlotte, NC Page 10
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
Mid-Atlantic is authorized to practice engineering by the North Carolina Board of Examiners for Engineers
and Surveyors, License F-0967 and Geology under the North Carolina Board for Licensing of Geologists,
License C-186.
TABLES
VOCs SVOCs HSL Metals
SB-1 15 feet x x x --
SB-2 15 feet x x x --
SB-3 15 feet x x x --
SB-4 15 feet x x x --
SB-5 15 feet x x x --
SB-6 15 feet x x x --
SB-7 15 feet x x x --
SB-8 15 feet x x x DUP-1
SB-9 Southeastern Boundary 15 feet x x x --
SB-10 Northwestern Boundary 15 feet x x x --
11 11 11 --
Notes:
VOCs = volatile organic compounds by EPA Method 8260
SVOCs = semi-VOCs by EPA Method 8270
HSL = Hazardous Substance List metals by EPA Method 6020
Totals
TABLE 1
Proposed Soil Sampling Matrix
Colwick Road Property
NCDEQ Brownfield Project #25095-21-060
Mid-Atlantic Project #021H1590.00
4313 - 4317 Colwick Road, Charlotte, Mecklenburg County, North Carolina
Sample ID Analytical Method
Historical Wood (2021)
Soil Boring Locations
QA/QA
SamplesProposed DepthSample Location
VOCs SVOCs HSL Metals
TMW-1 30 feet x x x --
TMW-2 30 feet x x x DUP-2
TMW-3 30 feet x x x --
TMW-4 30 feet x x x --
TMW-5 30 feet x x x --
TMW-6 30 feet x x x --
7 7 7 --
Notes:
VOCs = volatile organic compounds by EPA Method 8260
SVOCs = semi-VOCs by EPA Method 8270
HSL = Hazardous Substance List metals by EPA Method 6010
Southwestern Property Boundary
Northeastern Property
Boundary
Mid-Atlantic Project #021H1590.00
Totals
TABLE 2
Proposed Groundwater Sampling Matrix
Colwick Road Property
4313 - 4317 Colwick Road, Charlotte, Mecklenburg County, North Carolina
NCDEQ Brownfield Project #25095-21-060
Sample ID Sample Location Proposed Depth Analytical Method QA/QA
Samples
Analytical Method
VOCs
SG-1 10 feet x --
SG-2 10 feet x --
SG-3 10 feet x DUP-3
SG-4 10 feet x --
SG-5 10 feet x --
SG-6 10 feet x --
7 --
Notes:
VOCs = volatile organic compounds by EPA Method TO-15
Sample ID Sample Location Proposed Depth QA/QA
Samples
Totals
Proposed Mixed Use Building
Footprint
Mid-Atlantic Project #021H1590.00
TABLE 3
Proposed Soil Vapor Sampling Matrix
Colwick Road Property
4313 - 4317 Colwick Road, Charlotte, Mecklenburg County, North Carolina
NCDEQ Brownfield Project #25095-21-060
DRAWINGS
DRAWN BY: DATE:
ENG. CHECK:
JOB NO:DRAFTCHECK: GIS NO:
´
1:9,000SCALE:
MECKLENBURG
UNION
CABARRUS
§¨¦
U74§¨¦I77§¨¦I8 5
§¨¦I485§¨¦U521§¨¦I277
0 750 1,500375Feet
REFERENCES:1. CHARLOTTE EAST, NC DIGITAL RASTER GRAPHICS,USGS. SCANNED FROM 1:24,000-SCALE MECKLENBURG, NCTOPOGRAPHIC MAPS, PUBLISHED 2019, USGS.2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION ATLAS,BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON, D.C.3. PROPERTY BOUNDARY DATA FROM MECKLENBURG COUNTY GIS.
AREA SHOWN WITHINMECKLENBURG COUNTY
TOPOGRAPHIC SITE MAPCOLWICK ROAD BROWNFIELDS PROPERTIES4313 - 4317 COLWICK ROADCHARLOTTE, NORTH CAROLINA APPROVAL:
OCTOBER 2022
DWG NO: 1
CONTOUR INTERVAL = 10 FEET
GDI 2G-021H1590.00-1
SUBJECT PROPERTY
GCH
GMH 021H1590.00
DRAWN BY: DATE:
ENG. CHECK:
JOB NO:DRAFTCHECK: GIS NO:
C
olwick R
d
Randolph Rd
G r e e n w ic h R d
C h is w ic k R d
N S h a ro n A m ity R d
´
1:2,400SCALE:
0 200 400100Feet
REFERENCES:
1. 2020 AERIAL IMAGERY FROM NC ONEMAP2. SHAPEFILES PROVIDED BY MECKLENBURG COUNTY GIS3. MID-ATLANTIC FIELD NOTES
SITE AND SURROUNDING AREA MAP
COLWICK ROAD BROWNFIELDS PROPERTY4313 - 4317 COLWICK ROADCHARLOTTE, NORTH CAROLINA APPROVAL:
OCTOBER 2022
DWG NO: 2
021H1590.00 T-10000
00G21H1590.00-2
GCH
233 Chiswick Road LUST Incident #27512
Tyson Cleaners4425 Randolph Road Historical Drycleaners
Sonic Automotive4401 Colwick Road Historical Auto Station
Colwick Cleaners4408 Colwick Road Historical Drycleaners
Legend
Subject Property
Parcel Boundaries
DRAWN BY: DATE:
ENG. CHECK:
JOB NO:DRAFTCHECK: GIS NO:
!(
!(
!(
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!(
!(
!(
!(
!(
!(
@A
@A
@A
@A
@A
@A
#*
#*
#*
#*
#*
#*
SB-10
SB-2
SB-3
SB-4 SB-5
SB-6
SB-7
SB-8
SB-9
SB-1
TMW-1
TMW-2
TMW-3
TMW-4
TMW-5
TMW-6
SG-1
SG-2
SG-3
SG-4
SG-5
SG-6
Colwick Rd
G re e n w ic h R d´
1:900SCALE:
0 75 15037.5 Feet
REFERENCES:
1. 2020 AERIAL IMAGERY FROM NC ONEMAP2. SHAPEFILES PROVIDED BY MECKLENBURG COUNTY GIS3. MID-ATLANTIC FIELD NOTES
PROPOSED SAMPLE LOCATION MAP
COLWICK ROAD BROWNFIELDS PROPERTY4313 - 4317 COLWICK ROADCHARLOTTE, NORTH CAROLINA APPROVAL:
OCTOBER 2022
DWG NO: 3
021H1590.00 T-10000
00G21H1590.00-3
GCH
Legend
#*Proposed Soil Vapor Sample Location
@A Proposed Temporary Monitoring Well Location
!(Proposed Soil Boring Location
Subject Property
Parcel Boundaries