HomeMy WebLinkAbout23001_Brownfields Work Plan ESTUL Tools_REV-1_03.22.2019
Via Email March 22, 2019 North Carolina Department of Environmental Quality Division of Waste Management – Brownfields Program 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Attn: Mr. Cody J. Cannon Re: Brownfields Assessment Work Plan – Revision 1 ESTUL Tools & Manufacturing Company 215 N. Ames Street
Matthews, Mecklenburg County, NC
Brownfields Project No. 23001-19-060
H&H Job No. BPP-003
Dear Cody:
1.0 Introduction
On behalf of Ames Station, LLC (the Prospective Developer or PD), Hart & Hickman, PC
(H&H) has prepared this Work Plan to conduct Brownfields assessment activities at the ESTUL
Tools & Manufacturing Company Brownfields property (Brownfields Project No. 23001-19-
060) located at 215 N. Ames Street, Mecklenburg County, North Carolina (subject Site or Site).
The Site is comprised of one approximately 2-acre parcel of land improved with an
approximately 32,500 square foot (sq ft) unoccupied industrial warehouse building. A Site
location map is provided as Figure 1, and the Site and surrounding area are shown in Figure 2.
H&H reviewed available resources to obtain information regarding historical uses of the Site and
identify areas of potential environmental concern for proposed Brownfields assessment
activities. A brief summary of our review is provided in the following section.
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2.0 Background
ESTUL Tools & Manufacturing Company (ESTUL) began metal stamping and fabrication
operations at the Site in 1954. During the fabrication process, cutting oils were used to lubricate
and cool metal components. Scrap metal generated during this process was placed in an
uncovered dumpster located outside of the northwest corner of the Site building. ESTUL
operations were discontinued at an unknown date in the 2000s. The property was then utilized
as a motorcycle dealership until December 2016 and a storage facility through February 2017.
In early to mid-1990, several businesses in the area of the Site indicated the presence of chemical
odors in water from their water supply wells. As such, the North Carolina Department of
Environment, Health, and Natural Resources (DEHNR), currently known as the North Carolina
Department of Environmental Quality (DEQ), collected water samples from several water supply
wells in the vicinity of the ESTUL Site. Analytical results of the groundwater samples indicated
the presence of several volatile organic compounds (VOCs), including benzene and chlorinated
VOCs tetrachloroethene (PCE), trichloroethene (TCE), and vinyl chloride. Based on the
laboratory analytical results, a Notice of Violation (NOV) was issued to ESTUL on October 22,
1990 under Groundwater Incident No. 5814. In addition, NOVs were also issued to ESTUL on
September 27, 1991 and April 26, 1996, and a Notice of Regulatory Requirements (NORR) was
issued on June 19, 1996.
From 1991 through 2017, several investigations were conducted by ESE Biosciences, Inc. (ESE)
and Apex Companies, LLC (Apex) to assess areas of potential environmental concerns at the
subject Site. A Site map referencing features identified during the investigations is included as
Figure 2. A brief discussion of previous assessment activities completed at the Site is provided
in the following sections.
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2.1 ESE 1991 and 1996 Assessment Activities
In March 1991 and April through August 1996, ESE completed soil and groundwater assessment
activities at the subject Site. The assessment activities were documented in an October 8, 1991
Subsurface Contaminant Assessment report and a September 5, 1996 Subsurface Investigation
report. The sampling was conducted to investigate potential impacts associated with the scrap
metal dumpster located adjacent to the loading dock at the northwestern corner of the Site
building.
As part of the 1991 field activities, three (3) soil borings (SB-1 through SB-3) were advanced in
an area northwest of the Site building. Eight (8) additional soil borings (SB-4 through SB-11)
were advanced in this area during the 1996 field activities. Approximate locations of the ESE
soil samples are shown in Figure 2.
The soil borings were advanced to depths ranging from 12 to 16 ft below ground surface (bgs)
and soils were collected from split-spoon samplers and screened with a photoionization detector
(PID). Soil samples were collected from depths ranging from 3.5 to 16 ft bgs and submitted for
laboratory analysis of VOCs with select samples submitted for Oil & Grease (O&G).
During the 1991 field activities, one (1) monitoring well (MW-1) was installed in an area
northwest of the Site building (Figure 2). The monitoring well was installed to a depth of
25 ft bgs and constructed with 15 ft of 2-inch 0.010-inch slotted well screen and 10 ft of 2-inch
PVC well casing. A groundwater sample was collected from monitoring well MW-1 for analysis
of VOCs, semi-volatile organic compounds (SVOCs) (1991 sampling event only), and lead
(1996 sampling event only).
In addition to the groundwater assessment, water samples were collected from two water supply
wells (Matthews Building Supply and Matthews Country Club) in the Site vicinity. The
Matthews Building Supply water supply well was reportedly located inside a building at
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225 Ames Street (current address is 325 W. Matthews Street) and used as cooling water for the
building’s air conditioning system. The Matthews County Club water supply well location was
not referenced in the historical documents reviewed by H&H, however, it was reported that the
well was located within 1,500 ft of the subject Site. Two additional water supply wells were
reportedly located at the 225 Ames Street property but were not sampled during the 1991 or
1996 field activities. One of the unsampled Matthews Building Supply water supply wells was
reportedly used as an injection well for spent coolant water from the aforementioned air
conditioning system. The second unsampled Matthews Building Supply water supply well’s use
is not known. Approximate locations of the unsampled Matthews Building Supply wells are
shown in Figure 2.
The soil laboratory analytical results indicated detections of O&G at concentrations up to
240 milligrams per kilogram (mg/kg). Additionally, 1,1-dichloroethene (up to 0.021 mg/kg),
1,1-dichloroethane (up to 0.160 mg/kg), 1,2-dichloroethene (up to 0.019 mg/kg), PCE (up to
0.041 mg/kg), 1,1,1-trichloroethane (0.0220 mg/kg), 1,1,1-trichloroethane (up to 0.058 mg/kg),
1,1,2-trichloroethane (up to 0.075 mg/kg), and TCE (up to 0.049 mg/kg) were detected at
concentrations below their respective February 2018 DEQ Residential and
Industrial/Commercial Preliminary Soil Remediation Goals (PSRGs).
The groundwater laboratory analytical results from monitoring well MW-1 indicated detections
of 1,1-dichloroethene (up to 1,200 microgram per liter [µg/L]), 1,1-dichloroethane (360 µg/L),
1,2-dichloroethane (25 µg/L), methylene chloride (up to 84 µg/L), PCE (up to 360 µg/L), TCE
(420 µg/L), carbon tetrachloride (1,000 µg/L), and trans-1,2-dichloroethene (110 µg/L) above
their respective April 2013 DEQ 15A North Carolina Administrative Code (NCAC)
02L .0202 Groundwater Quality Standards (2L Standards). The water supply well sampling
laboratory analytical results indicated low-level detections of 1,1,1-trichloroethane (up to
0.99 µg/L), chloroform (0.49 µg/L), 1,1-dichloroethene (up to 7.7 µg/L), 1,1-dichloroethane (up
to 0.79 µg/L), PCE (0.37 µg/L), and TCE (up to 0.83 µg/L) below their respective 2L Standards.
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2.2 Apex 2017 Assessment Activities
In February 2017, Apex completed vapor intrusion assessment activities at the subject Site. The
assessment activities were documented in a March 15, 2017 Vapor Intrusion Assessment Report.
As part of the assessment activities, five indoor air samples (IA-1 through IA-5) and three sub-
slab soil gas samples (SS-1 through SS-3) were collected within the Site building (Figure 2).
Additionally, an exterior ambient air sample was collected near the southeastern corner of the
Site building. At the time of the sub-slab soil gas and indoor air sampling activities, the property
was utilized as a motorcycle dealership and storage facility which could have included use of
products containing potential compounds of concern. The sub-slab soil gas and indoor air
samples were submitted for laboratory analysis of select VOCs by EPA Method TO-15. The
select analyte list was based on compounds historically detected in Site groundwater and
included the following VOCs:
benzene chloroethane chloroform
1,1-dichloroethane 1,2-dichloroethane 1,1-dichloroethene
cis-1,2-dichloroethene trans-1,2-dichloroethene methylene chloride
PCE 1,1,1-trichloroethane 1,1,2-trichloroethane
TCE vinyl chloride -
Note that the March 2017 Vapor Intrusion Assessment Report references laboratory analytical
results from a 2007 groundwater sampling event conducted by ATC Associates of North
Carolina, P.C. A report documenting the 2007 groundwater sampling activities was not
available for H&H review.
The sub-slab soil gas laboratory analytical results indicated a detection of chloroform above the
February 2018 DEQ Division of Waste Management (DWM) Residential and Non-Residential
Sub-slab and Exterior Soil Gas Screening Levels (SGSLs). The indoor air laboratory analytical
results indicated detections of benzene (up to 26 micrograms per cubic meter [µg/m3]), PCE (up
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to 11 µg/m3), and TCE (up to 2.6 µg/m3) above the DWM Residential Indoor Air Screening
Levels (IASLs). Additionally, select concentrations of benzene and PCE were detected above
the DWM Non-Residential IASLs.
The DEQ DWM SGSLs and IASLs are conservative and based upon a lifetime incremental
cancer risk (LICR) of 1 x 10-5 for potential carcinogenic effects and a Hazard Quotient (HQ) of
0.2 for potential non-carcinogenic effects. The DEQ and EPA acceptable risk levels for potential
carcinogenic risks is cumulative LICR less than 1 x 10-4 and the acceptable risk level for
non-carcinogenic risks is a hazard index (HI) less than 1.
H&H utilized the February 2018 DEQ risk calculator using residential and non-residential use
scenarios to further evaluate potential cumulative risks for the soil gas to indoor air vapor
intrusion pathway and using compounds concentrations detected in indoor air. Risk calculator
results for a resident indicate a cumulative LICR of up to 1.6 x 10-4 and a cumulative HI of 0.25
for the soil gas to indoor air vapor intrusion pathway and a LICR of up to 8.0 x 10-5 and a
cumulative HI of 2.4 for indoor air. Risk calculator results for a non-residential worker indicate
a cumulative LICR of up to 1.2 x 10-5 and a cumulative HI of 0.020 for the soil gas to indoor air
vapor intrusion pathway and a LICR of up to 1.8 x 10-5 and a cumulative HI of up to 0.57 for
indoor air.
Risk calculator results indicate that cumulative values for the sub-slab to indoor air vapor
intrusion pathway for a non-residential worker scenario do not exceed a LICR of 1 x 10-4 or a HI
of 1. In addition, risk calculator results for indoor air under a non-residential worker use
scenario of within the acceptable risk limits.
The Site received eligibility into the DEQ Brownfields Program via a Letter of Eligibility dated
February 8, 2019. On February 19, 2019, H&H and the PD attended an on-Site meeting with
DEQ Brownfields personnel to discuss Site history, areas of potential environmental concern,
proposed redevelopment plans, potential data gaps, and the scope of Brownfields assessment
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activities needed to address the data gaps. The DEQ Brownfields Program subsequently sent a
letter to the PD on March 4, 2019 and an email on March 7, 2019 requesting additional
assessment activities to address the data gaps discussed during the February 2019 meeting. To
address DEQ requests for additional assessment at the Site, H&H proposes to conduct a
historical file review to obtain additional environmental information available for the Site and to
complete receptor survey activities in the area surrounding the Site. Additionally, H&H
proposes to conduct soil, groundwater, and vapor intrusion assessment activities to further
evaluate potential impacts at the Site. Proposed Brownfields assessment activities are outlined in
the following sections.
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3.0 Brownfields Assessment Activities
The proposed Brownfields assessment activities will be performed in general accordance with
the DEQ Inactive Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup
(Guidelines) dated October 2015, the DEQ Division of Waste Management (DWM) Vapor
Intrusion Guidance dated March 2018, and the most recent versions of the U.S. Environmental
Protection Agency (EPA) Region IV Science and Ecosystem Support Division (SESD) Field
Branches Quality System and Technical Procedures guidance.
Prior to conducting field activities, H&H will contact North Carolina 811 One-Call, the public
utility locator service, to mark subsurface utilities at the Site. H&H will also team with a private
utility locator to identify and mark locations of sub-grade utilities at the Site that may not be
marked by the public locator. In addition, the private utility locator will perform a geophysical
assessment in the outdoor portions of the Site property to determine if underground storage tanks
(USTs) are present. The geophysical assessment will utilize ground penetrating radar (GPR) and
information obtained during the assessment will be recorded in the field using a hand-held
Global Positioning System (GPS) unit.
3.1 Receptor Survey and Historical File Review Activities
H&H will perform a Brownfields receptor survey in accordance with DEQ Brownfields Section
guidance. The receptor survey will utilize the Brownfields Property Receptor Survey Form and
will include information about land use in the Site area including zoning. H&H will also
conduct a field search for water supply wells, basements, utility manways and chases, storm
sewers, other underground utilities, drains, and surface water within a 1,500 ft radius of the
Brownfields property boundaries.
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In addition to the receptor survey, H&H will perform a historical file review of the Site property
to obtain information related to potential use of the subject Site prior to ESTUL occupancy in
1954. The historical file review will include historical aerial photographs, a radius search, and
city directories.
3.2 Groundwater Assessment Activities
H&H proposes to subcontract with a North Carolina licensed drilling contractor to advance
borings for installation of two (2) temporary monitoring wells using a direct-push technology
(DPT) drill rig. The approximate locations of the proposed temporary monitoring wells are
shown on Figure 3 and described further below:
• upgradient of existing monitoring well MW-1 in the southern portion of the Site; and
• crossgradient of existing monitoring well MW-1 in the eastern portion of the Site.
During drilling, soil samples will be collected and logged for lithologic description and field
screened for presence of staining and elevated concentrations of volatile organic vapors using a
calibrated PID. Should field observations indicate potential soil impacts during advancement of
the temporary monitoring well borings, a representative sample will be collected from the
approximate impacted interval and submitted for laboratory analysis (see Section 3.3 for soil
laboratory analysis information).
The temporary monitoring wells will be constructed of 1-inch diameter PVC with 10 or 15 ft of
pre-pack well screen (due to sampling for metals) set to bracket the water table (estimated at
between approximately 15 to 25 ft bgs) and 1-inch diameter PVC well casing to the ground
surface. A sand filter pack will extend from below the base to approximately 2 ft above the top
of the pre-packed well screens followed by at least 2 ft of hydrated bentonite.
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The temporary monitoring wells and existing monitoring well MW-1 will be developed by
removing a minimum of 3 to 5 well volumes and observing stable field parameters
(i.e. pH ± 0.1 SU and conductivity varies no more than 5%). After development, a groundwater
sample will be collected utilizing low flow/low stress purging techniques using a peristaltic
pump and disposable polyethylene tubing. The intake point of the pump tubing will be placed
approximately in the mid-portion of the screened interval of the well and groundwater will be
removed at a rate no greater than 200 milliliters per minute. H&H will utilize a water quality
meter to measure pH, temperature, dissolved oxygen, oxidation reduction potential, turbidity,
and specific conductivity at 3 to 5-minute intervals during purging. Purging will be considered
complete when water quality parameters stabilize (i.e. pH ± 0.1 SU, conductivity varies no more
than 5%, and turbidity is less than 10 NTUs).
Once groundwater parameters stabilize, groundwater samples from existing monitoring well
MW-1 and the two temporary monitoring wells will be collected directly into laboratory
supplied sample containers. VOC samples will be collected using the “soda straw” method to
minimize volatile loss through the peristaltic pump head. The sample containers will be labeled
with the sample identification, date, and requested analysis, and then placed in a laboratory
supplied cooler and iced. The samples will be delivered to a North Carolina certified laboratory
under standard chain of custody protocols for analysis of VOCs by EPA Method 8260, 1,4-
Dioxane by EPA Method 8260 Selected Ion Monitoring (SIM), SVOCs by EPA Method 8270,
and Resource Conservation Recovery Act (RCRA) metals by EPA Methods 6020/7471.
Upon completion of groundwater sampling activities, existing monitoring well MW-1 and the
two temporary monitoring wells will be surveyed and depth to groundwater information will be
collected. Existing monitoring well MW-1 and the two temporary monitoring wells will then be
properly abandoned by a licensed well driller and surfaces will be repaired to generally match
pre-drilling conditions. The DEQ IHSB approved abandonment of monitoring well MW-1
following collection of the groundwater sample. Groundwater sample locations will be recorded
in the field using a hand-held GPS unit.
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3.3 Soil Sampling Activities
H&H proposes to advance three (3) shallow soil borings using a decontaminated stainless-steel
hand auger. The approximate locations of the proposed soil borings are shown on the sample
location map, which is presented as Figure 3, and are described below:
• near existing monitoring well MW-1 in the northwestern portion of the Site;
• near the former loading dock area in the western portion of the Site; and
• from the temporary monitoring well boring in the southern portion of the Site.
The soil borings will be advanced to a depth of approximately 2 ft bgs. Continuous soil samples
will be collected from the center of the hand auger bucket at each boring. Soil samples will be
logged for lithological description and field screened for indication of potential impacts by
observation for staining, unusual odors, and the presence of volatile organic vapors using a
calibrated PID. Soil samples will be collected from approximately 0-2 ft bgs from each of the
three (3) borings. In addition, if impacted soils are observed during temporary monitoring well
installations, an approximate 2-ft representative soil sample will be collected from the interval of
observed impacts.
Soil samples will be placed in dedicated laboratory-supplied sample containers, labeled with the
sample identification, date, and requested analysis, and placed in a laboratory-supplied cooler
with ice. Soil samples will then be submitted to a North Carolina certified laboratory under
standard chain of custody protocols for analysis of VOCs by EPA Method 8260, SVOCs by EPA
Method 8270, and RCRA metals by EPA Methods 6020/7471/7199.
Following sampling activities, the soil borings will be properly abandoned and the surface will
be repaired similar to pre-sampling conditions. Additionally, the soil sample locations will be
estimated using a hand-held GPS unit.
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3.4 Vapor Intrusion Assessment Activities
H&H proposes to conduct sub-slab soil gas and indoor air sampling to evaluate the potential for
structural vapor intrusion into the existing Site building. The proposed sub-slab soil gas and
indoor air sampling locations are generally based on the sampling locations referenced in the
March 2017 Vapor Intrusion Assessment Report. Additionally, H&H proposes to direct the
laboratory to analyze the sub-slab soil gas and indoor air samples for VOCs that were detected
during the 2017 vapor intrusion assessment. The proposed VOC analyte list is provided below:
benzene chloroform 1,1-dichloroethane
1,1-dichloroethene cis-1,2-dichloroethene trans-1,2-dichloroethene
methylene chloride PCE TCE
1,1,1-trichloroethane vinyl chloride -
3.4.1 Sub-Slab Soil Gas Sampling Methodology
H&H proposes to collect three (3) sub-slab soil gas samples to evaluate the potential for
structural vapor intrusion into the existing Site building. The sub-slab soil gas samples will be
co-located with three (3) of the five (5) proposed indoor air samples discussed in Section 3.4.2.
The proposed sub-slab soil gas assessment will be performed in general accordance with the
DEQ DWM Vapor Intrusion Guidance dated March 2018 and as described below.
The sub-slab soil gas sample points will be installed by utilizing a hammer drill and
1½-inch diameter drill bit to advance a pilot hole into the concrete slab to a depth of
approximately 1¾ inches below the surface. A drill guide will then be placed in the pilot hole,
and a 5/8-inch diameter drill bit will be utilized to advance the boring through the concrete slab.
Following concrete borehole advancement, loose concrete cuttings will be removed from the
boring using a bottlebrush and vacuum with a high efficiency particulate air (HEPA) filter. A
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Cox-Colvin Vapor Pin™ (vapor pin) assembly (brass sampling point and silicone sleeve) will be
seated in the borehole using an installation/extraction tool and hammer. The vapor pins will be
installed as flush-mount sample points capable of being secured with a stainless-steel cover that
screws onto the sampling point and is seated within the pilot hole annulus.
Prior to sampling sub-slab vapor monitoring points, a leak check will be conducted at each
location by constructing a shroud around the monitoring point and flooding the air within the
shroud with helium gas. Using a syringe, a sample will be collected from the gas in the shroud
into a Tedlar® bag and analyzed for helium concentrations using a helium gas detector. Vapor
from the monitoring points will be purged and sampled outside of the shroud into a separate
Tedlar® bag and analyzed using the helium gas detector to ensure that helium concentrations are
less than 10% of the concentration measured within the shroud.
Following a successful field leak check, the sub-slab samples will be collected into one-liter
Summa canisters for laboratory analysis by connecting the Teflon® sample tubing to an airflow
regulator using a brass nut and ferrule assembly to create an air tight seal. Shut-in leak tests will
be performed on each Summa canister and sampling train prior to sampling. The airflow
regulator will be calibrated by the laboratory to allow the Summa canisters to fill slowly at a rate
not greater than 200 milliliters per minute. The vacuum pressure in each Summa canister upon
completion of the sampling event will be between three and six inches of mercury. Upon
completion of sample collection, the air flow regulator will be removed from the Summa canister
and the samples will be submitted to a nationally accredited laboratory under standard chain of
custody protocols for analysis of select VOCs by EPA Method TO-15 (see Section 3.4). Upon
receipt of the samples, the laboratory will record the final received vacuum pressure for each
Summa canister.
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3.4.2 Indoor Air Sampling Methodology
H&H proposes to collect five (5) indoor air samples to evaluate the potential for structural vapor
intrusion into the existing Site building. Three (3) of the indoor air samples will be co-located
with the proposed sub-slab soil gas samples discussed in Section 3.4.1. The proposed indoor air
assessment will be performed in general accordance with the DEQ DWM Vapor Intrusion
Guidance dated March 2018 and as described below.
In order to collect the indoor air samples under conservative conditions, the samples will be
collected with the windows of the buildings closed and ingress and egress activities minimized.
The indoor air samples will be collected using 6-liter stainless steel Summa sample canisters
connected to in-line flow controllers with a vacuum gauge. The flow controllers will be set so
that the samples are collected over an 8-hour period. A 3-foot long sampling cane will be
connected to the flow controller so that the sample intake point is positioned approximately
5 ft above grade (typical breathing zone height) when the sample canister is set on its base.
During the sampling activities, indoor/outdoor air pressure differential will be measure near the
start, middle, and end of the 8-hour sampling period using a manometer sensitive to 0.001 inches
of water. In addition, exterior wind speed, exterior wind direction, indoor/outdoor temperature,
and precipitation (if any) will be recorded near the start, middle, and end of the sampling period.
For quality assurance purposes, H&H personnel will be on-Site monitoring the sample canisters
to prevent tampering or damages for the duration of the sampling event. A vacuum will be
maintained within the canisters at the conclusion of the sampling event.
Prior to and after the indoor air samples are collected, vacuum in the canisters will be measured
using a laboratory-supplied vacuum gauge and recorded by sampling personnel. The starting and
ending vacuum in each canister will be recorded on the sample chain-of-custody. The sample
canisters will then be labeled and shipped under standard chain of-custody procedures to a
qualified laboratory for analysis of select VOCs by EPA Method TO-15 (see Section 3.4).
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3.5 Quality Assurance/Quality Control Samples
Non-dedicated equipment and tools will be decontaminated prior to use at each boring or
sampling location or following exposure to soil, soil gas, or water samples. For quality
assurance and quality control purposes (QA/QC), one trip blank will be submitted for analysis of
VOCs by EPA Method 8260 for each shipment that contains samples for VOC analysis. To
evaluate the reproducibility of the sample results, H&H will collect one duplicate soil sample,
one duplicate groundwater sample, one duplicate sub-slab soil gas sample, and one duplicate
indoor air sample. The duplicate samples will be submitted for the same laboratory analysis as
their respective parent samples.
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. QA/QC procedures will be
conducted in accordance with the method protocols and will include regular equipment
maintenance, equipment calibrations, and adherence to specific sample custody and data
management procedures. Samples will be analyzed in conjunction with appropriate blanks,
laboratory duplicates, continuing calibration standards, surrogate standards, and matrix spiking
standards in accordance with approved methodologies to monitor both instrument and analyst
performance. Laboratory reporting limits for each analyte will be at or below appropriate
screening criteria, where possible. Additionally, H&H 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 (i.e., 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 requested for this project. A
copy of the completed chain-of-custody record and shipping receipt will be appended to the
corresponding laboratory analytical report included with the final report.
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3.6 Investigation Derived Waste
Investigation derived waste (IDW) generated during the assessment activities will be thin spread
on-Site. However, if significant impacts are suspected (i.e., high PID readings, free-product,
etc.) the soil cuttings and/or generated groundwater will be containerized in 55-gallon drums and
staged on-Site pending analytical results of composite IDW samples. IDW generated during the
proposed assessment activities will be managed in accordance with DEQ IHSB Guidelines.
3.7 Reporting
Following completion of the assessment activities and receipt of the analytical data, H&H will
document our findings in a Brownfields Assessment Report. The report will include a
description of the sampling activities, figures depicting sample locations, sample data, and
groundwater elevation data (including approximate groundwater flow direction), soil boring
logs, laboratory analytical data, a discussion of the data in comparison to regulatory screening
levels, Brownfields receptor survey results, IDW manifests (if applicable), and conclusions and
recommendations concerning our activities.
Please contact me if you have any questions or require additional information.
Mr. Cody Cannon March 22, 2019 Page 17
S:\AAA-Master Projects\Bat and Pick Partners (BPP)\BPP-003 215 N. Ames Street\Brownfields Assessment Workplan\REV 1 to DEQ 3-22-19\Brownfields Work Plan Rev 1_ ESTUL Tools (BPN 23001-19-060)_20190322.doc
Sincerely, Hart & Hickman, PC
#C-1269 Engineering #C-245 Geology
3/22/19 Justin Ballard, PG Senior Project Geologist North Carolina Professional Geologist #2257 Attachments
JOB NO. BPP-003 FIGURE NO. 1
DATE: 3/20/2019 REVISION NO. 0
2923 South Tryon Street- Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / #C-245 Geology
SITE LOCATION MAP
ESTUL TOOLS & MANUFACTURING COMPANY215 N. AMES STREETMATTHEWS, NORTH CAROLINA
0 2,000 4,000
SCALE IN FEET
APPROXIMATEÜ
U.S.G.S QUADRANGLE MAP
MATTHEWS, NORTH CAROLINA, 2016
QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC)
SITE
REVISION NO. 0
JOB NO. BPP-003
DATE: 3-21-19
FIGURE NO. 2
ESTUL TOOLS & MANUFACTURING COMPANY
215 N. AMES STREET
MATTHEWS, NORTH CAROLINA
SITE MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL LINES
RAILROAD
APPROXIMATE RAILROAD RIGHT OF WAY
MONITORING WELL
(ESE; 1991)
SOIL SAMPLE LOCATION
(ESE; 1991 AND 1996)
SUB-SLAB SOIL GAS SAMPLING LOCATION
(APEX; 2017)
INDOOR AIR SAMPLE LOCATION
(APEX; 2017)
EXTERIOR AMBIENT AIR SAMPLE LOCATION
(APEX; 2017)
FORMER DUMPSTER
(APPROXIMATE)
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS (2017).
2.SOIL BORING AND MONITORING WELL LOCATIONS ARE
APPROXIMATE AND BASED ON INFORMATION PROVIDED
IN ESE BIOSCIENCES, INC.'S (ESE) OCTOBER 8, 1991
SUBSURFACE CONTAMINANT ASSESSMENT REPORT.
3.SUB-SLAB SOIL GAS, INDOOR AIR, AND EXTERIOR AMBIENT AIR SAMPLING LOCATIONS ARE APPROXIMATE
AND BASED ON INFORMATION PROVIDED IN APEX
COMPANIES, LLC'S (APEX) MARCH 15, 2017 VAPOR
INTRUSION ASSEMENT REPORT.
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OLD NORTH STATE MASONRY
(201 W. MATTHEWS STREET)
MATTHEWS HELP
CENTER & THRIFT
SHOP
(119 N. AMES ST.)RESIDENTIAL
PRECISION PLUMBING
(474 W. MATTHEWS ST.)
MULTI-TENNANT BUILDING
(212 W. MATTHEWS STREET)
MULTI-TENNANT BUILDING
RENFROW FARMS
(409 W. CHARLES ST.)
RESIDENTIAL N. AMES STREETMW-1
RENFROW FARMS
MATTHEWS BUILDING
SUPPLY
(325 W. MATTHEWS ST.)WATER SUPPLY
WELL HOUSE
IA-5
SS-3
IA-3
IA-4
IA-2
IA-1
AA-1
SS-2
SS-1
SB-2
SB-7 SB-4
SB-3
SB-5
SB-8SB-6
SB-9
SB-1
SB-11
SB-10
S:\AAA-Master Projects\Bat and Pick Partners (BPP)\BPP-003 215 N. Ames Street\Brownfields Property Application\Figures\Figures.dwg, FIG 2, 3/21/2019 10:59:29 AM,SVincent
REVISION NO. 0
JOB NO. BPP-003
DATE: 3-21-19
FIGURE NO. 3
ESTUL TOOLS & MANUFACTURING COMPANY
215 N. AMES STREET
MATTHEWS, NORTH CAROLINA
PROPOSED SAMPLE LOCATION MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL LINES
RAILROAD
APPROXIMATE RAILROAD RIGHT OF WAY
MONITORING WELL (ESE; 1991)
FORMER DUMPSTER (APPROXIMATE)
PROPOSED TEMPORARY GROUNDWATER
MONITORING WELL LOCATION
PROPOSED SOIL BORING LOCATION
PROPOSED SUB-SLAB SOIL GAS SAMPLE
LOCATION
PROPOSED INDOOR AIR SAMPLE LOCATION
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NOTES:
1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG
COUNTY GIS (2017).
2.MONITORING WELL LOCATION IS APPROXIMATE AND
BASED ON INFORMATION PROVIDED IN ESE
BIOSCIENCES, INC.'S (ESE) OCTOBER 8, 1991
SUBSURFACE CONTAMINANT ASSESSMENT REPORT.N. AMES STREETW
.
M
A
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W.
C
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MULTI-TENNANT BUILDING
OLD NORTH STATE MASONRY
(201 W. MATTHEWS STREET)
RENFROW FARMS
RESIDENTIAL
MATTHEWS BUILDING
SUPPLY
(325 W. MATTHEWS ST.)
MW-1
WATER SUPPLY
WELL HOUSE
S:\AAA-Master Projects\Bat and Pick Partners (BPP)\BPP-003 215 N. Ames Street\Brownfields Property Application\Figures\Figures.dwg, FIG 3, 3/21/2019 11:00:08 AM,SVincent