HomeMy WebLinkAbout24010_Yandle Witherspoon Final Grade Soil Assessment Work Plan_ 20230823
Via Email
August 17, 2023
NCDEQ – Division of Waste Management
Brownfields Redevelopment Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Attn: Mr. Bill Schmithorst
Re: Final Grade Soil Assessment Work Plan
Yandle-Witherspoon Supply Inc. – Optimist II Apartments
1001 N. Brevard Street
Charlotte, North Carolina
Brownfields Project No. 24010-20-060
H&H Project No. TCR-001
Dear Bill:
On behalf of AOP II Apartments Venture LLC, enclosed please find a copy of the Final Grade Soil
Assessment Work Plan prepared for the Optimist II apartments portion of the Yandle-Witherspoon
Brownfields property (Brownfields Project No. 24010-20-060) located in Charlotte, Mecklenburg County.
Should you have questions or need additional information, please do not hesitate to contact us.
Sincerely,
Hart & Hickman, PC
Haley Martin, PG Ralph McGee, PG
Senior Project Geologist Senior Project Manager
Enclosures
cc: Mr. Justin Adams, Trammell Crow Residential (Via Email)
Mr. Garrett Wright, Trammell Crow Residential (Via Email)
Mr. Joe Harrison, Trammell Crow Residential (Via Email)
Mr. Jonathan Wells, Kazmarek Mowrey Cloud Laseter, LLP (Via Email)
Attachments
Work Plan and Report Checklist
Version 3 March 2023
Minimum Requirements Checklist
Site Assessment Work Plans and Reports
NCDEQ Brownfields Redevelopment Section– March 2023
Instructional Page
All references to Prospective Developers include follow-on owners who may be conducting
work in accordance with the Brownfields Property Management Branch.
To increase predictability and most efficiently assess Brownfields Properties and the
redevelopment timing requirements of Prospective Developers or follow-on owners, the
Brownfields Redevelopment Section has standardized the format for Site Assessments. This
format has been generated in the form of a checklist to allow for ease in submission by the
prospective developer’s consultant and for the Brownfields Redevelopment Section’s
completeness review. This checklist outlines the minimum requirements and submittal format
under the Brownfields Redevelopment Section for Assessment Requirements and Reporting. All
Assessment Work Plans and Report submissions to the Brownfields Redevelopment Section must
include this completed checklist in the outlined format.
These requirements allow DEQ to reduce review time for the Assessment Work Plan and Report
and increase process predictability for prospective developers. This checklist will also provide
reliable data for risk-based decisions and further expedite the project timeline. Any divergence
from these requirements will lengthen the process of assessing risks on the site, may necessitate
reprioritization of a project manager’s queue towards projects that meet these requirements.
Therefore, delaying production of the brownfields agreement and/or environmental management
plan. Any alterations to the checklist on a site-specific basis must be reviewed and approved by
the Section prior to implementation. However, in order to respect the schedule of all projects in
house and keep the Section’s entire project pipeline moving, we strongly recommend against
seeking changes to the checklist.
Based on a review of environmental and risk data from our project inventory, please note
there are some new points of emphasis that are included herein:
1. For ALL residential reuses; sub-slab vapor assessment (full list EPA TO-15) is required,
regardless if existing structures will be removed. If no structures or slabs exist on the
Brownfields Property, exterior soil gas assessment is required within all proposed
structure footprints.
2. ALL properties require groundwater data (VOCs, SVOCs and RCRA Metals) from a
minimum of three sample locations, depth to groundwater and a resulting potentiometric
map.
3. Soil shall be assessed based on areas of concern and redevelopment plans and across the
depth interval of the cut/grading.
Work Plan and Report Checklist
Version 3 March 2023
Environmental Site Assessment
Work Plan Checklist
Reviewed and checked by (Name): Mr. Bill Schmithorst, Brownfields Redevelopment
Section
Title Page
The title page should include the following information. Letter style reports are acceptable, as long as
this information is somewhere on the first page.
☒ Title of Work Plan
☒ Brownfields Project Name (not the development name)
☒ Brownfields Project Number
☒ Date (updated with each revision)
☐ Revision Number
☒ Firm PE/PG License Number
☒ Individual PE/PG seal & signature
Section 1 – Introduction
☒ Provide the site location, address, and acreage.
☒ Provide a BRIEF summary of the history of the property and its history in the Section. For example:
reiterate RECs from a Phase I ESA, indicate if the scope of work was negotiated during a Data
Gap Meeting, etc.
☒ Briefly list and describe the data gaps the assessment is attempting to fill
☒ Indicate if the assessment data is for the use of any other DEQ programs in addition to the
Brownfields Redevelopment Section (i.e. the site is a regulated UST, IHSB, etc. property)
Section 2 – Scope of Work
☒ Provide a general description of proposed scope of work covered in this plan (i.e. 2 new monitoring
wells, 6 groundwater samples, 5 exterior soil gas sampling points and 6 soil borings)
☒ Discuss samples to be collected by media and source area/location. Generally, the reasoning for the
sample locations selected.
☒ Describe depths of samples to be collected (Reference Table 1) or how that decision will be made
in the field, if needed.
☒ State for what each sample will be analyzed (briefly). Reference Table 1.
Note: For all residential reuses, sub slab vapor is required, if no slabs exist, exterior soil gas is required
within all proposed footprints.
Work Plan and Report Checklist
Version 3 March 2023
Section 3 – Sampling Methodology
☒ Reference the guidance documents you intend to use. IHSB, EPA SESD, VI Guidance, Well
Construction Rules (NCAC 2C). Note deviations or methodology planned that is not covered by
such guidance (e.g., multi-increment sampling, passive air samplers, mobile labs, Hapsite,
simultaneous indoor/outdoor radon, high-volume sub-slab vapor testing, PFAS sampling).
☒ Describe what will be installed (soil boring, temporary well, permanent well, sub-slab vapor, exterior
soil gas, etc.). Include construction details.
☒ Discuss installation methodology (Hand Auger, DPT, etc.)
Discuss Equilibration Times
Monitoring wells (equilibration time prior to development and equilibration post well
development should be 24 hours, per EPA standard protocols).
Vapor:
a. Sub slab vapor with minimally invasive points (e.g. Vapor Pins): Manufacturer’s
guidelines generally suggest 20 minutes may be sufficient with an airtight cap installed;
or
b. Sub slab vapor points (other than minimally invasive points) or exterior soil gas
points: at least 24 hours (to be purged at installation and at time of sampling with an
air-tight cap in place in the interim).
☒ Discuss sample collection procedures. Include the following, at a minimum:
Equipment to be used
Purging methods and volumes
Stabilization parameters for groundwater sampling
Field screening methods
Leak check procedures for sub-slab vapor and exterior soil gas samples (Note this is
required)
Discuss how and when vacuum readings will be collected (for summa cans)
Submission of the samples to the laboratory within 48 hours of collection and/or written
documentation of temperature maintenance if the situation requires extension beyond 48
hours prior to lab submittal
☒ Discuss sample point abandonment
Section 4 – Laboratory Analyses
☒ Discuss the proposed analyses (include method number, preparation method, if there are concerns
with short hold times, etc).
☒ Discuss any proposed limitations on the contaminants of concern, if any, and the reason for such
limitation (sufficient previous data, indoor air interferences, etc).
☒ Discuss laboratory certifications. Please note, NC does not certify labs for air samples. Please
specify what certification the proposed air lab holds.
☒ Indicate that the Reporting Limits/Method Detection Limits will meet applicable screening criteria
(to the extent feasible). Include reporting of J-Flags to meet criteria.
☒ Indicate what Level QA/QC will be reported by the laboratory. Level II QA/QC is typically
acceptable.
Work Plan and Report Checklist
Version 3 March 2023
Section 5 – QA/QC
☒ Specify the duplicate sample frequency. Minimum requirement: 1 duplicate per 20 samples, per
media, per method.
☐ Discuss Trip Blank. 1 Trip Blank per cooler/shipment of groundwater VOC analyses is required.
☒ Discuss how the lab will have sufficient sample volume for MS/MSD analyses.
☒ Discuss chain of custody and shipping.
Section 6 – Investigation Derived Waste (IDW) Management
☒ Discuss what IDW will be generated and how it is proposed to be managed. Management
recommendations should be in accordance with 15A NCAC 02T.1503 and 15A NCAC 02H.
0106. Generally, if the Brownfields Property has not previously been assessed, then all IDW
must be containerized and characterized prior to management. Previous assessment data that
indicate no Hazardous Waste (listed or characteristic) is likely to be encountered in the area of
proposed assessment will be required before thin spreading of IDW on-site is permitted.
Section 7 – Reporting
This section should discuss the components of the assessment report which will be prepared as a result
of the above sample collection. At a minimum, the report shall include:
☒ Title Page that is consistent with the requirements listed above.
☒ Reporting/summary of site work conducted for all sections outlined above in this checklist;
☒ Summary of findings and possible recommendations;
☒ All applicable tables and figures (shall include at a minimum the items below)
☒ Tables for tabulated analytical data per media sampled and analyzed, compared against
applicable screening levels, sample depths and depth to groundwater;
☒ Figure depicting actual sample locations collected, with each media depicted in the
legend, graphic scale and north arrow; and
☐ Groundwater potentiometric map, with graphic scale and north arrow.
☒ Appendices shall include (as applicable):
☒ Copies of field notes
☒ Boring logs for all soil borings, newly constructed monitoring wells, and exterior soil
gas locations
☐ Well construction and abandonment records
Work Plan Approval Signature Page (see Attachment 1). The Consultant shall complete
and submit the Approval Signature Page with the work plan submittal for DEQ signature.
Work Plan and Report Checklist
Version 3 March 2023
Attachments
☒ Attachment 1 – Work Plan Approval Signature Page
☒ Table 1 – Proposed Sample Locations and Analyses on a Summary Table that includes:
☒ Sample ID
☒ Sample Objective
☒ Proposed Depth(s)
☒ Analytical Method(s)
☒ QA/QC Samples
☐ Background Samples
☒ Figure 1 – Site Location Map
☒ Site location on a topographic map base
☒ Graphic scale and north arrow
☒ Figure 2 – Site Map should include the following
☐ Buildings
☐ Historical sample locations
☐ RECs or other areas of concern
☐ Proposed sample locations
☐ Sample identification labels
☐ Background samples
☐ QA/QC samples
☐ Graphic scale and north arrow
☐ High quality aerial suggested as the base map
☐ Figure 3 – Site Potentiometric Map that includes the following
☐ Buildings
☐ Groundwater sample identification labels
☐ Arrow noting direction of groundwater flow
☐ Graphic scale and north arrow
☐ Figure 4 – Site Plume Maps (groundwater, soil vapor, etc.)
☒ Figure 5 – Proposed Development (if available)
☒ Overlay of historical and proposed sample locations
☒ Graphic scale and north arrow
☐ Appendix – Summary of Historical Analytical Data (if needed) – to include tables and figures only.
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Final Grade Soil Assessment Work Plan
Yandle Witherspoon Supply Inc. - Optimist II Apartments
Charlotte, North Carolina
Brownfields Project No. 24010-20-060
H&H Job No. TCR-001
Table of Contents
1.0 Introduction ............................................................................................................................ 1
2.0 Background Information....................................................................................................... 3
2.1 Site History ........................................................................................................................... 3
2.2 Summary of Previous Environmental Assessment Activities .............................................. 4
3.0 Final Grade Soil Assessment Activities ................................................................................ 9
3.1 Final Grade Soil Sampling ................................................................................................... 9
3.2 Quality Assurance / Quality Control .................................................................................. 10
3.3 Investigation Derived Waste .............................................................................................. 11
4.0 Reporting .............................................................................................................................. 12
List of Tables
Table 1 Proposed Final Grade Soil Sample Summary
List of Figures
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3 Proposed Sample Location Map
List of Appendices
Appendix A Final Planting Plan
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Final Grade Soil Assessment Work Plan
Yandle Witherspoon Supply Inc. – Optimist II Apartments
Charlotte, North Carolina
Brownfields Project No. 24010-20-060
H&H Job No. TCR-001
1.0 Introduction
On behalf of AOP II Apartments Venture LLC, Hart & Hickman, PC (H&H) has prepared this
Work Plan to conduct final grade soil sampling for the Optimist II apartments located on a portion
of the Yandle-Witherspoon Supply Inc. Brownfields property (Brownfields Project No. 24010-20-
060) at 1001 N. Brevard Street in Charlotte, Mecklenburg County, North Carolina (Site or subject
Site). The Yandle-Witherspoon Supply Inc. Brownfields property consists of two (2) contiguous
parcels (Mecklenburg County Parcel Identification Nos. {PINs} 08104106 and 08104107) that
collectively total approximately 5.6 acres of land. The Optimist II apartments are located on PIN
08104106 which comprises approximately 4.2 acres of the larger Yandle-Witherspoon Supply Inc.
Brownfields property. A Site location map is provided as Figure 1, and the Site and surrounding
area are shown in Figure 2.
Proposed redevelopment of the Site has included the construction of a multifamily residential
apartment building and an associated parking deck. A copy of the Final Planting Plan prepared by
Land Design on August 16, 201 depicts the proposed redevelopment layout and is provided in
Appendix A. Redevelopment activities at the Site have been completed in accordance with the
North Carolina Department of Environmental Quality (DEQ) approved Environmental
Management Plan (EMP) dated August 11, 2021.
The EMP for the Site generally states that no occupancy of the Brownfields property may occur
after redevelopment until representative final grade soil samples have been collected in areas at
the Site that are not covered by building foundations, sidewalks, or asphalt or concrete parking
areas and driveways. Redevelopment activities at the Site are nearing completion. Therefore,
H&H will complete final grade soil assessment activities in unpaved areas at the Site in accordance
with the DEQ-approved EMP.
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A brief summary of background information associated with the Yandle-Witherspoon Supply Inc.
Brownfields property is presented in Section 2.0, and the final grade soil assessment scope of work
is described in Section 3.0.
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2.0 Background Information
2.1 Site History
The Site was comprised primarily of residences, a church, and a portion of 14th Street from the
early 1910s until the early 1950s, when the southern portion of the Site was developed with a small
commercial building utilized for wholesale fruit distribution. By the late 1950s, a building located
in the eastern portion of the Site was occupied by a laundry and dry-cleaning facility, and the
commercial building located in the southern portion of the Site was utilized for paint storage.
The eastern building was occupied by a dry-cleaning facility until the late 1970s, a construction
company from the late 1970s until the early 2000s, multiple retailers in the 2010s, and a food and
beverage marketing business until the building was razed for construction of the Optimist II
apartments in 2021.
Additions to the commercial building in the southern portion of the Site were completed in the
1970s and in the 1990s. The southern building was occupied by Yandle-Witherspoon for
warehousing and distribution of heating, ventilation, and air conditioning (HVAC) systems and
parts from the 1970s until the early 2020s when the building was razed as part of the Optimist II
development.
A generally east to west trending railroad spur was constructed across the Site in the late 1920s
and was utilized by the northern adjoining property until the 1980s. The LYNX Blue Line light
rail tracks were constructed along the northern and northwestern portions of the Brownfields
property in 2015. A portion of an unnamed tributary of Little Sugar Creek located in the western
portion of the Brownfields property along the light rail corridor was piped below grade during
construction of the light rail and daylights at the confluence with another unnamed tributary of
Little Sugar Creek which flows south-southeast across the eastern portion of the Site.
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2.2 Summary of Previous Environmental Assessment Activities
To obtain additional information, H&H reviewed several environmental reports prepared by others
to document previous environmental assessments completed at the Site.
Former Gay Laundry and Cleaners
The eastern portion of the Site was historically occupied by Gay Laundry and Cleaners from at
least 1959 until approximately 1979. During assessment activities conducted at the Site in 2006,
the chlorinated dry-cleaning solvent tetrachloroethene (PCE) and its degradation compounds were
detected in groundwater at concentrations above the DEQ 15A NCAC 02L .0211 Groundwater
Quality Standards (2L Standards). The facility was entered into the DEQ Dry-Cleaning Solvent
Cleanup Act (DSCA) Program (Project ID No. DC600044).
Assessment and risk evaluation activities were conducted at the former Gay Laundry and Cleaners
facility under the purview of the DSCA Program from September 2009 until 2010. In August
2010, a Notice of Dry-Cleaning Solvent Remediation was recorded on the former Gay Laundry
and Cleaners tax parcel deed, and DEQ issued a No Further Action (NFA) letter for the chlorinated
solvent release incident.
1990 UST Closure Activities
In March 1990, one 2,000-gallon gasoline underground storage tank (UST) was removed from the
Site. Upon removal of the UST, closure soil samples were collected from the base of the
excavation for analysis of benzene, toluene, ethylbenzene, total xylenes, total petroleum
hydrocarbons as diesel-range organics (TPH-DRO), and TPH as gasoline-range organics
(TPH-GRO). Closure soil sample analytical results indicated that no compounds were detected at
concentrations above the DEQ UST Section Action Levels or Maximum Soil Contaminant
Concentrations (MSCCs). Based on closure soil sample analytical results, DEQ issued a No
Further Action letter for the 2,000-gallon UST on October 15, 2007 (Leaking UST Incident No.
36379). UST removal activities are documented in the Report of Site Assessment for Underground
Storage Tank Closure prepared by SPATCO Environmental and dated May 1990.
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March 2002 Remedial Investigation Report
In 2000 and 2001, groundwater, surface water, and sediment assessment activities were conducted
at the Site by Brown and Caldwell to evaluate the potential for impacts from the former
Consolidated Engravers facility located adjacent to the southwest and topographically upgradient
of the Site. The Consolidated Engravers facility operated as a textile mill from the late 1880s until
at least the mid-1950s. The facility was entered into the DEQ Inactive Hazardous Sites Branch
(IHSB) following discovery of impacted groundwater attributed to historical mill operations
(IHSB ID No. NCD003162500).
Assessment activities for the Consolidated Engravers release were completed at the Site under
purview of IHSB and included installation and sampling of four groundwater monitoring wells,
collection of eight groundwater grab samples, and collection of four co-located surface water and
sediment samples from the unnamed tributary of Little Sugar Creek located in the northern and
eastern portions of the Site. Results of the assessment activities are documented in a Remedial
Investigation Report prepared by Brown and Caldwell for the Consolidated Group, Inc. dated
March 2002.
Groundwater analytical results indicated the presence of multiple compounds at concentrations
above the 2L Standards in samples collected across the Site. During the October 2001 sampling
event, PCE (31 micrograms per liter [µg/L]) and trichloroethene (TCE, 24 µg/L) were detected at
concentrations above the 2L Standards in groundwater sample SLGW-10, collected in the western
and upgradient portion of the Site. In addition, PCE (35 µg/L) and TCE (37 µg/L) were also
detected at concentrations above the 2L Standards in downgradient groundwater sample SLGW-
16, collected in the northern portion of the Site.
Surface water sample laboratory analytical results identified PCE (up to 110 µg/L) and TCE (up
to 23 µg/L) at concentrations that exceed the DEQ 2B Surface Water Quality Standards (2B
Standards). Sediment analytical results identified low levels of PCE (up to 0.43 milligrams per
kilogram [mg/kg]) and TCE (up to 0.066 mg/kg) at concentrations above the laboratory method
detection limits, but below the DEQ Residential Preliminary Soil Remediation Goals (PSRGs).
The polycyclic aromatic hydrocarbon (PAH) benzo(a)pyrene (up to 0.42 JD mg/kg) was detected
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in sediment at concentrations above the DEQ Residential PSRGs. The “J-flag” designation for the
benzo(a)pyrene detection indicates that the compound was detected at a concentration above the
laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory
estimated value. Metals, including arsenic (up to 2.7 mg/kg), lead (up to 435 mg/kg) and
hexavalent chromium (up to 7.1 mg/kg) were also detected at concentrations above the DEQ
Residential and/or Non-Residential PSRGs in sediment samples collected at the Site.
November 2016 Highland Park Mill Brownfields Assessment
In September 2016, Terracon Consultants Inc. (Terracon) performed Brownfields assessment
activities for the Highland Park Mill Brownfields property (Brownfields Project No. 20005-16-
060) which now includes northeastern portions of the Yandle-Witherspoon Supply Brownfields
property including eastern portions of the Site. Highland Park Mill assessment activities
conducted in the northeastern portions of what is now the Yandle-Witherspoon Supply
Brownfields property included collection of four groundwater samples (GW-03, GW-06, GW-07,
and GW-08) and two surface water samples (SW-01 and SW-02). The assessment activities are
documented in a Brownfields Assessment Report prepared by Terracon dated November 17, 2016.
Laboratory analytical results for groundwater samples indicated that no organic compounds were
detected at concentrations above the 2L Standards. However, several metals including arsenic (up
to 14.7 µg/L), cadmium (up to 4.8 µg/L), chromium (up to 282 µg/L), and lead (up to 74.6 µg/L)
were detected in groundwater samples at concentrations above the 2L Standards. Terracon
attributed the elevated metals concentrations to high turbidity in the groundwater samples. No
other compounds were detected at concentrations above the 2L Standards in the November 2016
groundwater samples collected in northeastern portions of the Yandle-Witherspoon Supply
Brownfields property.
Results of surface water samples collected from the unnamed tributary of Little Sugar Creek
located in the eastern portions of the Site indicated the presence of cis-1,2-dichloroethane (up to
1.3 µg/L) and barium (up to 110 µg/L) at concentrations below the 2B Standards. No compounds
were detected at concentrations above the 2B Standards in the November 2016 surface water
samples collected at the Site.
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April 2021 Brownfields Assessment
H&H conducted Brownfields assessment activities at the Yandle-Witherspoon Supply
Brownfields property in April 2021. The Brownfields assessment activities included the collection
of soil, groundwater, surface water, sediment, and soil gas samples to evaluate for potential
impacts and to assist in management of media during proposed redevelopment activities. A brief
summary of the Brownfields assessment activities is provided below.
The PAH benzo(a)pyrene (0.141 J mg/kg) was detected in one soil sample (EX-1) at a
concentration above the DEQ Residential PSRG of 0.11 mg/kg. Metal concentrations
detected in soil were within established concentrations for naturally occurring metals
and/or were below DEQ Residential PSRGs with the exception of the hexavalent
chromium (up to 2.04 mg/kg), which was detected at concentrations above the DEQ
Residential PSRG of 0.31 mg/kg and typical background levels for the Site area.
Laboratory analytical results confirmed the presence of TCE (5.6 µg/L) in a groundwater
sample (TMW-2) collected in the northern corner of the Brownfields property at a
concentration above the 2L Standard of 3 µg/L and DEQ Non-Residential Vapor Intrusion
Groundwater Screening Level (GWSL) of 4.4 µg/L. In addition, laboratory analytical
results indicated the presence of PCE in groundwater at concentrations (up to 8.9 µg/L)
above the 2L Standard of 0.7 µg/L.
Laboratory analytical results identified the presence of PCE (up to 14.6 µg/L) and TCE (up
to 4.8 µg/L) at concentrations above their respective 2B Standards in upgradient surface
water samples (BF-SW-3/BF-SW-DUP) collected from on-Site portions of the unnamed
tributary of Little Sugar Creek.
The sediment sample analytical results did not indicate the presence of organic compounds
at concentrations above the DEQ PSRGs. Metals concentrations detected were within
established concentration for naturally occurring metals in soil with the exception of
hexavalent chromium (up to 1.81 mg/kg) which was detected above the DEQ Residential
PSRG of 0.31 mg/kg and typical background concentrations for the Site area.
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The soil gas sample analytical results indicate the presence of several compounds above
the laboratory method detection limits in each of the soil gas samples. However, no
compounds were detected above their respective DEQ Residential Vapor Intrusion Sub-
slab and Exterior Soil Gas Screening Levels (SGSLs).
As stated above, redevelopment activities for the Optimist II multifamily building and associated
parking deck are nearing completion. The DEQ-approved EMP requires the collection of final
grade soil samples in unpaved areas at the Site upon completion of soil disturbance activities. This
Work Plan has been prepared to fulfill the requirements of the EMP. The following sections
describe the proposed final grade sampling activities.
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3.0 Final Grade Soil Assessment Activities
Final grade soil sampling activities will be completed at the Site to evaluate the potential for
impacts in shallow soil within landscape areas that may pose unacceptable exposure risks to future
residential occupants. The soil sampling activities will be performed in general accordance with
the DEQ IHSB Guidelines for Assessment and Cleanup of Contaminated Sites (Guidelines) dated
September 2022, the most recent versions of the U.S. Environmental Protection Agency (EPA)
Region IV Laboratory Services and Applied Science Division (LSASD) Field Branches Quality
System and Technical Procedures guidance, and the DEQ Brownfields Minimum Requirements
Checklist for Site Assessment Work Plans and Reports dated March 2023.
3.1 Final Grade Soil Sampling
Based on review of the Final Planting Plan (Appendix A), conversations with the PD, and
observations at the Site, landscaped areas at the Site have been divided into five (5) final grade
evaluation areas (FG-1 through FG-5). Five (5) shallow soil borings will be advanced in each area
for collection of aliquot soil samples. The final grade evaluation areas and aliquot soil boring
locations are shown in Figure 3.
Each aliquot soil boring will be advanced from the surface to approximately two (2) ft below the
ground surface (ft bgs) using a decontaminated stainless steel hand auger. Continuous soil samples
will be collected from the center of the hand auger buck at each boring. Soil samples will be
described for lithologic purposes, observed for obvious evidence of staining and unusual odors,
and field screened for the presence of volatile organic vapors using a calibrated photoionization
detector (PID).
The soil samples selected for laboratory analysis will be placed in dedicated laboratory supplied
sample containers, labeled with the sample identification, date, time, requested analysis, and
placed in a laboratory-supplied cooler with ice. The sample cooler will be submitted to a North
Carolina certified laboratory under standard chain of custody protocols for the analyses outlined
below.
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Based on results of field screening, a grab soil sample from the aliquot exhibiting the highest
likelihood for impact will be collected from each of the final grade evaluation areas and will be
submitted for laboratory analysis of volatile organic compounds (VOCs) by EPA Method 8260.
If field screening results do not identify the obvious presence of impacts in an aliquot soil sample,
the final grade evaluation area grab samples will be collected from the 1 to 2 ft bgs sample interval
from a randomly selected aliquot soil boring in each evaluation area.
Aliquot soil samples will be collected from each soil boring advanced in a final grade evaluation
area and homogenized to form a composite soil sample representative of shallow soil in that
evaluation area. Composite soil samples will be submitted for laboratory analysis of SVOCs by
EPA Method 8270 and Resource Conservation and Recovery Act (RCRA) metals plus hexavalent
chromium by EPA Methods 6020/7471/7199. A final grade soil sample summary is provided as
Table 1.
Following sampling activities, the soil borings will be abandoned and the surfaces will be repaired
similar to pre-drilling conditions. Additionally, the soil sample locations will be estimated using
a hand-held global positioning system (GPS) unit.
3.2 Quality Assurance / Quality Control
Non-dedicated equipment and tools will be decontaminated prior to use at each boring location.
To evaluate the reproducibility of the sample results, H&H will collect one duplicate soil sample
(FG-DUP) that will be submitted for the same analyses as the parent soil sample.
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 calibration, 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
11
s:\aaa-master projects\trammell crow residential - tcr\tcr-001 yandle witherspoon\brownfields\final grade\work plan\24010 - final grade soil assessment work plan_ yandle witherspoon.docx
performance. H&H will request that laboratory method detection limits for each analyte 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 (J flags).
The laboratory analytical data report and QA package for the final grade soil 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.
3.3 Investigation Derived Waste
Based on results of previous soil assessment activities completed at the Site, investigation derived
waste (IDW) generated during the assessment activities will be thin spread on-Site. However, if
significant impacts are suspected (i.e., presence of free-product, etc.) the soil cuttings will be
containerized in 55-gallon drums and staged on-Site pending analytical results of a composite IDW
sample. Based on laboratory analytical results of IDW samples, the drums will be transported off-
Site to a suitable facility for disposal. IDW generated during the proposed assessment activities
will be managed in accordance with DEQ IHSB Guidelines and the 15A NCAC 02T.1503 and 15A
NCAC 02H. 0106 rules.
12
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4.0 Reporting
Following completion of the assessment activities and receipt of the analytical data, H&H will
document our findings in a Redevelopment Completion and Final Grade Soil Assessment Report.
The report will include a description of environment-related activities since the previous
redevelopment summary report, the final grade soil sampling activities, a figure depicting sample
locations, soil boring logs, a discussion of the data in comparison to regulatory screening levels,
laboratory analytical data reports, and conclusions and recommendations concerning our activities.
Table 1 Proposed Final Grade Soil Sample Summary Yandle Witherspoon Supply Inc. Charlotte, North Carolina H&H Job No. TCR-001 s:\aaa-master projects\trammell crow residential - tcr\tcr-001 yandle witherspoon\brownfields\final grade\work plan\table\table 1 - sample summary.docx Sample Objective Evaluation Area Aliquot Soil Borings Aliquot Boring Depth (ft bgs) Grab VOC Samples (8260) Composite SVOC Samples (8270) Composite RCRA Metal + Hexavalent Chromium Samples (6020/7471/7199) Shallow Soil Exposure Risk Evaluation FG-1 5 2 1 1 1 FG-2 5 2 1 1 1 FG-3 5 2 1 1 1 FG-4 5 2 1 1 1 FG-5 5 2 1 1 1 QA/QC FG-DUP 5 2 1 1 1 Notes: U.S. Environmental Protection Agency analytical method is shown in parentheses. VOCs = volatile organic compounds; SVOCs = semi-VOCs; RCRA = Resource Conservation and Recovery Act ft bgs = feet below ground surface; QA/QC = quality assurance/quality control The duplicate sample location will be selected in the field.
REVISION NO. 0
JOB NO. TCR-001
DATE: 6-27-23
FIGURE NO. 2
YANDLE-WITHERSPOON SUPPLY INC.
OPTIMIST II APARTMENTS1001 N. BREVARD STREET
CHARLOTTE, NORTH CAROLINA
SITE MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY
RAILROAD TRACK
PROPOSED OFFICE BUILDING
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NORT
H
B
R
E
V
A
R
D
S
T
R
E
E
T BE
LMON
T
A
V
E
NUE
NOTES:
1. PARCEL DATA OBTAINED FROM MECKLENBURG
COUNTY GIS, 2023. AERIAL IMAGERY OBTAINED FROM
MECKLENBURG COUNTY GIS, 2023.
TRIBUTARY OF LITTLE
SUGAR CREEK
PROPOSED
PARKING DECK
PROPOSED
COURTYARD
PROPOSED POOL/
COURTYARD
S:\AAA-Master Projects\Trammell Crow Residential - TCR\TCR-001 Yandle Witherspoon\Brownfields\Final Grade\Work Plan\Figures\TCR-001_SITE.dwg, Figure 2, 6/28/2023 1:42:48 PM, kmckinney2. FINAL GRADE SOIL ASSESSMENT FOR THE PROPOSED
OFFICE BUILDING WILL BE COMPLETED UNDER SEPERATE COVER.
REVISION NO. 0
JOB NO. TCR-001
DATE: 6-27-23
FIGURE NO. 3
YANDLE-WITHERSPOON SUPPLY INC.
OPTIMIST II APARTMENTS
1001 N. BREVARD STREET CHARLOTTE, NORTH CAROLINA
PROPOSED SAMPLE LOCATION MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PARCEL BOUNDARY
RAILROAD TRACK
PROPOSED MULTI-FAMILY RESIDENTIAL
BUILDING
PROPOSED OFFICE BUILDING
PROPOSED LANDSCAPING AREA
PROPOSED PARKING DECK
PROPOSED ALIQUOT SOIL SAMPLE
LOCATIONS
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
NORT
H
B
R
E
V
A
R
D
S
T
R
E
E
T BE
LMON
T
A
V
E
NUE
TRIBUTARY OF LITTLE
SUGAR CREEK
PROPOSED
PARKING DECK
PROPOSED
COURTYARD
PROPOSED POOL/
COURTYARD
NOTES:
1.PARCEL DATA OBTAINED FROM MECKLENBURG
COUNTY GIS, 2023.
2.APPROXIMATE EXTENT OF PROPOSED BUILDING
FOOTPRINTS BASED ON PRELIMINARY SITE PLAN
PROVIDED BY THE PD DATED 3/4/22.
3. FINAL GRADE SOIL ASSESSMENT FOR THE PROPOSED OFFICE BUILDING WILL BE
COMPLETED UNDER SEPERATE COVER.
FG-4
FG-5
FG-3
FG-2
FG-1
S:\AAA-Master Projects\Trammell Crow Residential - TCR\TCR-001 Yandle Witherspoon\Brownfields\Final Grade\Work Plan\Figures\TCR-001_SITE.dwg, Figure 3, 6/28/2023 1:41:30 PM, kmckinney
Appendix A
Final Planting Plan
710' - 11 11/32"
UP
UP UP UP
UP
UP
UP
UP
ADJACENT
OPTIMIST HALL
DEVELOPMENT
BELMONT AVEN BREVARD STREET
PARKING DECK
SEE B C STUDIO
PLANS FOR
COURTYARD
DESIGN
SEE B C STUDIO
PLANS FOR
COURTYARD
BREEZEWAY
DESIGN
EXISTING LIGHT RAIL
RAILROAD ROW
TOP OFCREEK BANK
PROPERTY LINETOP OF CREEK BANKCENTERLINE
10' BUILD TO ZONE
16' SETBACK
MULTI
FAMILY
RESIDENTIAL
ADJACENT
ALTON OPTIMIST PARK
DEVELOPMENT OFFICE
L
IM
ITS
OF
WORK
10' SETBACK
10' SETBACK
15' LANDSCAPE BUFFER ALONG PARKING DECK
35' POST CONSTRUCTION /
SWIM BUFFER
STORM DRAINAGE
EASEMENT
CLUB /
AMENITY
T
T
T
FREIGHT RAIL
CPROPERTY LINEPROPERTY LINE
FUTURE
OFFICE
DEVELOPMENT
30' POST-CONSTRUCTION
BUFFER
PROPERTY LINE
PROPERTY LINE
RAILROAD R/W
FREIGHT RAILWhite Point PacesPartners LLC
Parcel AZoned: TOD-MOZoned: TOD-UCSeaboard Air Line Railroad Co.
Seaboard Air Line Railroad Co.Zoned: I-2Zoned: TOD-UCEXISTING
POWER POLE
TO REMAIN
EXISTING
POWER POLE
TO REMAIN
EXISTING
POWER POLE
TO REMAIN
EXISTING
POWER POLE
TO REMAIN
6 LARGE MATURING
TREES TO BE PLACED
WITHIN 2 INTERIOR
COURTYARDS - SEE
BC STUDIO PLANS
FOR PROPOSED
LOCATIONS.
ADDITIONAL 8
RE4UIRED INTERNAL
TREES TO BE PLACED
PER THIS PLAN.
PROPOSED
PED LIGHT
TYP.
PROPOSED
PED LIGHT
TYP.
PROPOSED
PED LIGHT
TYP.
PROPOSED
PED LIGHT
TYP.
RE4UIRED PLANTING BUFFER,
SEE RE4UIRED PLANTING PLAN
TREES CODE 4TY BOTANICAL NAME COMMON NAME CONT.SIZE SPEC SIZE REMARKS
LTG 3 LLULRGHQGURQ WXOLSLIHUD 'GOHQ GROG'GOHQ GROG TXOLS PRSODU B B 1.5"MATCHED SPECIMEN, STRONG
CENTRAL LEADER
4VI 7 4XHUFXV YLUJLQLDQD SRXWKHUQ LLYH ODN B B 3"10-12C MATCHED SPECIMEN, STRONG
CENTRAL LEADER
UPA 17 UOPXV SDUYLIROLD 'AOOHH' TM AOOHH LDFHEDUN EOP B B 3"10-12C MATCHED SPECIMEN, STRONG
CENTRAL LEADER
SHRUBS CODE 4TY BOTANICAL NAME COMMON NAME CONT SPACING SPEC SIZE REMARKS
AGO 1,246 AFRUXV JUDPLQHXV 'OJRQ'GROGHQ VDULHJDWHG SZHHWIODJ 3 GAL AV SKRZQ MATCHED SPECIMEN
ARS 190 AVWLOEH [ 'RLVH DQG SKLQH'RLVH DQG SKLQH AVWLOEH 3 GAL AV SKRZQ MATCHED SPECIMEN
CSA 20 CDPHOOLD VDVDQTXD 'GUHHQ 02-004' TM OFWREHU MDJLF WKLWH SKL-SKL CDPHOOLD -AV SKRZQ 2-3C MATCHED SPECIMEN
CSK 26 CDPHOOLD VDVDQTXD 'KDQMLUR'KDQMLUR CDPHOOLD 7 GAL AV SKRZQ MATCHED SPECIMEN
DXR 132 DLVW\OLXP [ 'RLH-DM1ER' TM BOXHVFDSH DLVW\OLXP 5 GAL AV SKRZQ MATCHED SPECIMEN
HPI 19 H\GUDQJHD SDQLFXODWD 'ILVOBO' TM BRER PDQLFOH H\GUDQJHD 5 GAL AV SKRZQ MATCHED SPECIMEN
H4U 13 H\GUDQJHD TXHUFLIROLD 'MXQFKNLQ'ODNOHDI H\GUDQJHD -AV SKRZQ 2-3C MATCHED SPECIMEN
MSA 259 MLVFDQWKXV VLQHQVLV 'AGDJLR'AGDJLR EXODOLD GUDVV 5 GAL AV SKRZQ MATCHED SPECIMEN
OFC 11 OVPDQWKXV [ IRUWXQHL 'CDUO WKHHOHU'CDUO WKHHOHU FRUWXQH OVPDQWKXV 30 GAL AV SKRZQ 36"MATCHED SPECIMEN, STRONG
CENTRAL LEADER
PGA 13 PKRWLQLD JODEUD 'PDUVXU'D\QDPR RHG PKRWLQLD -AV SKRZQ 2-3C MATCHED SPECIMEN
TOS 87 TKXMD RFFLGHQWDOLV 'SPDUDJG'EPHUDOG GUHHQ AUERUYLWDH B B AV SKRZQ 36-48"MATCHED SPECIMEN, STRONG
CENTRAL LEADER
VTI 26 VLEXUQXP WLQXV 'LLVDURVH'LLVDURVH LDXUXVWLQXV -AV SKRZQ 2-3C MATCHED SPECIMEN
VML 119 VLEXUQXP [ 'MRRQOLW LDFH'MRRQOLW LDFH VLEXUQXP 5 GAL AV SKRZQ MATCHED SPECIMEN
SHRUB AREAS CODE 4TY BOTANICAL NAME COMMON NAME CONT SPACING MIN HT REMARKS
RO 456 VI RRFN MXOFK RRFN MXOFK -TO BE DETERMINED
GROUND COVERS CODE 4TY BOTANICAL NAME COMMON NAME CONT SPACING MIN HT REMARKS
ZXZ 9,027 VI ZR\VLD [ CZHRQC ZHRQ ZR\VLD SOD SOD
ZZE 25,051 VI ZR\VLD [ 'ZHRQ'ZHRQ ZR\VLD SEED SEED
PLANT SCHEDULE PLNT
ALEXAN OPTIMIST
PARK II
TRAMMELL CROW RESIDENTIAL
3715 NORTHSIDE PARKWAY,
BUILDING 100, SUIT 200
ATLANTA, GA 30327
1020346
FINAL PLANTING PLAN
N/A
LD
LD
LD
C11.03
3/4/2022 1:51 PM IGNACIO NUÑEZ N:\_2020\1020346\CAD\DOCUMENTATION\1020346_PLN_FPLNT.DWG
KEY MAP
SEAL
SHEET NUMBER
SHEET TITLE
LANDDESIGN PROJ.#
SCALE
PROJECT
NORTH
NO.DESCRIPTION DATE
REVISION / ISSUANCE
ORIGINAL SHEET SIZE: 24" X 36"
VERT:
HORZ:
CHECKED BY:
DRAWN BY:
DESIGNED BY:
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
ISSUED FOR
PERMITTING
03/04/2022
1"=30'
6030015
90% GMP 07/20/2021
LAND DEVELOPMENT 08/16/2021