HomeMy WebLinkAbout23057_CharlotteVan&Storage_Final Grade Soil Assessment Work Plan and Approval_20230112
January 12, 2023
Sent via Email
Mr. Jeffrey W. Harris
Lennar Multifamily Communities, LLC
500 East Morehead Street, Suite 300 Charlotte, North Carolina 28202 jeff.harris@livelmc.com
Subject: Final Grade Soil Assessment Work Plan Approval
Charlotte Van & Storage Co. Brownfield Property Charlotte, Mecklenburg County Brownfields Project No. 23057-19-060
Dear Mr. Harris:
The North Carolina Department of Environmental Quality’s Brownfields Redevelopment Section (DEQ Brownfields) received and reviewed the Final Grade Soil Assessment Work Plan (Work Plan) dated January 4, 2023, submitted by Hart & Hickman for the above referenced
Brownfields Property. Upon review, we have determined that the Work Plan was prepared in
accordance with the November 24, 2020 Environmental Management Plan and is approved.
Be advised that this review from DEQ Brownfields does not waive any applicable requirement to obtain any necessary permits, licenses or certifications for the above listed activities nor does it waive any requirement to comply with applicable law for such activities. If
you have questions about this correspondence or require additional information, please contact
me by phone at (984) 275-5391, or e-mail at peter.doorn@ncdenr.gov.
Sincerely,
Peter L. Doorn Brownfields Project Manager
ec: Haley Martin, Hart & Hickman Ralph McGee, Hart & Hickman Tracy Wahl, DEQ Brownfields Redevelopment Section
Via Email
January 4, 2023
NCDEQ – Division of Waste Management
Brownfields Program
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Attn: Mr. Peter Doorn
Re: Final Grade Soil Assessment Work Plan
Charlotte Van & Storage Co.
Verbena Street and Gilead Street
Charlotte, North Carolina
Brownfields Project No. 23057-19-060
H&H Project No. LEN-008
Dear Mr. Doorn:
On behalf of Lennar Multifamily Communities, LLC, enclosed please find a copy of the Final
Grade Soil Assessment Work Plan prepared for the Charlotte Van & Storage Co. Brownfields
property (Brownfields Project No. 23057-19-060) located in Charlotte, Mecklenburg County.
Should you have any questions or need additional information, please do not hesitate to contact
us at (704) 586-0007.
Sincerely,
Hart & Hickman, PC
Haley Martin, PG Kyle McDaniel
Senior Project Geologist Assistant Project Geologist
Enclosures
cc: Mr. Patrick Foster, Quarterra (Via Email)
Minimum Requirements Checklist
for
Site Assessment
Work Plans and Reports
NCDEQ Brownfields Program – February 2022
Instructional Page
All references to Prospective Developers includes follow-on owners who may be conducting
work in accordance with the Brownfields Property Management Unit.
To increase predictability and most efficiently assess Brownfields Properties and the
redevelopment timing requirements of Prospective Developers or follow-on owners, the
Brownfields Program 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 Program’s completeness review. This checklist outlines the
minimum requirements and submittal format under the Brownfields Program for Assessment
Requirements and Reporting. All Assessment Work Plans and Reporting submissions to the
Brownfields Program 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 Program prior to implementation. However, in order to respect the schedule of all projects in
house and keep the program’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.
Environmental Site Assessment
Work Plan Checklist
Reviewed and checked by (Name ): Mr. Peter Doorn - NCDEQ Brownfields Program
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.
X Title of Work Plan
X Brownfields Project Name (not the development name)
X Brownfields Project Number
X Date (updated with each revision)
NA Revision Number
X Firm PE/PG License Number
X Individual PE/PG seal & signature
X Contact information for Developer, Consultant, and Project Manager
Section 1 – Introduction
X Provide the site location, address, and acreage.
X Provide a BRIEF summary of the history of the property and its history in the program. For example:
reiterate RECs from a Phase I ESA, indicate if the scope of work was negotiated during a Data
Gap Meeting, etc.
X Briefly list and describe the data gaps the assessment is attempting to fill
NA Indicate if the assessment data is for the use of any other DEQ programs in addition to the
Brownfields Program (i.e. the site is a regulated UST, IHSB, etc. property)
Section 2 – Scope of Work
X Provide a general description of proposed scope of work covered in this plan (i.e. 2 new
monitoring wells, six groundwater samples, 5 exterior soil gas sampling points and 6 soil
borings)
X Discuss samples to be collected by media and source area/location. Generally, the reasoning for
the sample locations selected.
X Describe depths of samples to be collected (Reference Table 1) or how that decision will be
made in the field, if needed.
X State for what each sample will be analyzed (briefly). Reference Table 1.
- For all residential reuses, sub slab vapor is required, if no slabs exist, exterior soil gas is required
within all proposed footprints.
Section 3 – Sampling Methodology
X 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 subslab vapor testing, PFAS sampling).
X Describe what will be installed (soil boring, temporary well, permanent well, sub slab vapor,
exterior soil gas, etc.). Include construction details.
X Discuss installation methodology (Hand Auger, DPT, etc.)
X 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)
X Discuss sample point abandonment
Section 4 – Laboratory Analyses
X Discuss the proposed analyses (include method number, preparation method, if there are
concerns with short hold times, etc).
NA Discuss any proposed limitations on the contaminants of concern, if any, and the reason for
such limitation (sufficient previous data, indoor air interferences, etc).
X Discuss laboratory certifications. Please note, NC does not certify labs for air samples. Please
specify what certification the proposed air lab holds.
X 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.
X Indicate what Level QA/QC will be reported by the laboratory. Level II QA/QC is typically
acceptable.
Section 5 – QA/QC
X Specify the duplicate sample frequency. Minimum requirement: 1 duplicate per 20 samples, per
media, per method.
NA Discuss Trip Blank. 1 Trip Blank per cooler/shipment of groundwater VOC analyses is required.
NA Discuss how the lab will have sufficient sample volume for MS/MSD analyses.
X Discuss chain of custody and shipping.
Section 6 – Investigation Derived Waste (IDW) Management
X 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:
X Reporting/summary of site work conducted for all sections outlined above in this checklist;
X Summary of findings and possible recommendations;
X All applicable tables and figures outlined below with the addition of:
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.
‐ Boring logs for all soil borings, newly constructed monitoring wells, and exterior soil gas
locations
‐ Well construction and abandonment records, if applicable
X Firm PE/PG License Number
X Individual PE/PG seal & signature
Attachments
X 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
X Figure 1 – Site Location Map
Site location on a topographic map base
Graphic scale and north arrow
X 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
NA_ Figure 3 – Site Potentiometric Map
- Buildings
- Groundwater sample identification labels
- Graphic scale and north arrow
NA__ Figure 4 – Site Plume Maps (groundwater, soil vapor, etc.)
X Figure 5 – Proposed Development (if available)
Overlay of historical and proposed sample locations
Graphic scale and north arrow
NA Appendix – Summary of Historical Analytical Data (if needed)
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Final Grade Soil Assessment Work Plan
Charlotte Van & Storage Co.
Verbena Street and Gilead Street
Charlotte, North Carolina
Brownfields Project No. 23057-19-060
H&H Job No. LEN-008
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 .............................................. 3
3.0 Final Grade Soil Assessment Activities .............................................................................. 10
3.1 Final Grade Soil Sampling ................................................................................................. 10
3.2 Quality Assurance / Quality Control .................................................................................. 11
3.3 Investigation Derived Waste .............................................................................................. 12
3.4 Reporting ............................................................................................................................ 12
List of Tables
Table 1 Final Grade Soil Sample Summary
List of Figures
Figure 1 Site Location Map
Figure 2 Site Map
Figure 3 Proposed Final Grade Soil Sample Location Map
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List of Appendices
Appendix A Site Plan
Project Contacts
Mr. Patrick Foster
Quarterra
605 Lexington Avenue, Suite 200
Charlotte, NC 28203
(410) 842-5303 (cell)
patrick.foster@quarterra.com
Ms. Haley Martin, PG
Hart & Hickman, PC
2923 South Tryon Street, Suite 100
Charlotte, NC 28203
(704) 526-2045 (office)
(704) 506-8107 (cell)
hmartin@harthickman.com
Mr. Peter Doorn
Division of Waste Management – Brownfields Program
1646 Mail Service Center
Raleigh, NC 27699
(984) 275-5391 (cell)
peter.doorn@ncdenr.gov
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Final Grade Soil Assessment Work Plan
Charlotte Van & Storage Co.
Verbena Street and Gilead Street
Charlotte, North Carolina
Brownfields Project No. 23057-19-060
H&H Job No. LEN-008
1.0 Introduction
On behalf of Lennar Multifamily Communities, LLC (Prospective Developer or PD), Hart &
Hickman, PC (H&H) has prepared this Work Plan to conduct final grade soil sampling at the
Charlotte Van & Storage Co. Brownfields property (Brownfields Project No.: 23057-19-060)
located at 235 Verbena Street in Charlotte, Mecklenburg County, North Carolina (Site). The Site
consists of one parcel (Parcel Identification Number: 14903412) that totals approximately 5.8 acres
of land located in a mixed residential, commercial, and industrial use area of lower South End
Charlotte. A Site location map is included as Figure 1, and a Site Plan prepared by BGE, Inc.
(BGE) depicting the redevelopment is included as Appendix A.
A Brownfields Agreement between the North Carolina Department of Environmental Quality
(DEQ) and the PD was recorded on September 10, 2021. The Land Use Restriction (LUR)
presented in LUR g. of the Brownfields Agreement 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. The Brownfields Agreement also generally
states that physical redevelopment of the Site will be completed in accordance with a DEQ-
approved Environmental Management Plan (EMP). The EMP for the redevelopment dated
November 17, 2020, received DEQ approval on November 24, 2020.
Requirements of the EMP include the collection of final grade soil samples upon completion of
soil disturbance activities (i.e., following completion of utility installations and final grading). In
accordance with the recorded Brownfields Agreement and DEQ-approved EMP, H&H will collect
final grade soil samples from areas at the Site that are not covered by building foundations,
sidewalks, driveways, parking areas, or other impervious materials.
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A brief summary of background information 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 land used for agricultural purposes with small structures
located in the southwestern portion of the Site as early as the late 1930s. From the late 1940s to
the late 1960s, residences were constructed on the southwestern, southern, and northeastern
portions of the Site. In 1969, a storage and distribution warehouse building was constructed for
the Charlotte Van & Storage Company in the northern portion of the former 213 Verbena Street
parcel. In 1972, an automotive repair warehouse building was constructed on former 4615 Gilead
Street parcel and has been occupied by multiple tenants for automotive repair, paint, and body
shop operations since construction. In 1974, a service garage was constructed south of the storage
and distribution warehouse building located on the former 213 Verbena Street parcel for truck
maintenance and repairs associated with Charlotte Van & Storage Co. fleet vehicles.
The Site buildings have been demolished, but were most recently occupied by Charlotte Van &
Storage (213 Verbena Street), Kub’s Auto Upholstery (4615 Gilead Street), and Quality Auto
Painting (4615 Gilead Street). The 4607 Gilead Street parcel, formerly located in the western
portion of the Site, was developed with a residence in the 1960s that was later razed in the early
1970s. The former 4607 Gilead Street parcel remained undeveloped from the 1970s until current
redevelopment activities.
2.2 Summary of Previous Environmental Assessment Activities
1992 UST Closure Activities
On December 22, 1992, one 5,000-gallon gasoline underground storage tank (UST) and one 5,000-
gallon diesel UST were removed from the former 213 Verbena Street parcel. The USTs were
nested within the same basin located south of the warehouse building in close proximity to the
current gasoline and diesel above ground storage tank (AST). Upon removal of the USTs, obvious
evidence of a release was observed and four soil samples (A-1, A-2, B-1, and B-2) were collected
for laboratory analysis of total petroleum hydrocarbons (TPH) as gasoline range organics (GRO)
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and as diesel range organics (DRO) from the base of the UST basin. Approximately 128 tons of
potentially impacted soil was over-excavated from the UST basin.
Laboratory analytical results indicate that TPH-DRO (up to 749 milligram per kilogram [mg/kg])
was detected in the closure soil samples at concentrations exceeding the DEQ UST Section Action
Level at the time of 10 mg/kg. Concentrations of TPH-GRO were not present at levels above the
DEQ UST Section Action Level. In addition to the closure soil samples, a groundwater sample
was collected for laboratory analysis of benzene, toluene, ethylbenzene, and xylenes (collectively
BTEX) from the UST basin as part of the closure activities. Groundwater sample analytical results
indicate that benzene (32 micrograms per liter [µg/L]) was detected at a concentration above the
DEQ 2L Groundwater Quality Standard (2L Standard) of 1 µg/L. No other compounds were
detected at concentrations above the 2L Standards in the UST basin groundwater sample. Based
on the UST initial abatement soil and groundwater assessment activities, DEQ opened Incident
No. 10092 to document the release. UST removal activities and initial abatement assessment
results are documented in the Underground Storage Tank Closure report prepared by Piedmont
Environmental, Inc. and dated January 7, 1993.
Beginning in 1993, additional groundwater assessment activities were completed to further
evaluate the horizontal and vertical extent of groundwater impacts associated with the UST release.
Groundwater assessment activities included installation of five (5) groundwater monitoring wells
(MW-1 through MW-5; see Figure 2) in the vicinity of the former UST basin and collection of
groundwater samples for laboratory analysis.
Groundwater sample laboratory analytical results indicated that low levels of the petroleum-related
compound methyl-tert-butyl ether (MTBE) were detected above the laboratory reporting limits in
the MW-1 (5 ug/L) and MW-5 (18 ug/L) groundwater samples at concentrations below the 2L
Standard of 20 ug/L. In addition, a trace level of toluene (1 ug/L) was detected in the MW-5
groundwater sample at a concentration well below the 2L Standard of 600 ug/L. Low level
detections of the non-petroleum related compounds chloroform (30 ug/L), 1,2-dichloropropane (2
ug/L), and 1,1,1-trichlroroethane (3 ug/L) were also detected in the MW-5 groundwater sample.
The 1,2-dichloropropane concentration exceeds the 2L Standard of 0.6 ug/L.
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Subsequent semi-annual and quarterly groundwater monitoring events occurred in 1994 through
1996 and no compounds were detected in Site groundwater at concentrations exceeding the 2L
Standards. Based on results of groundwater monitoring activities, DEQ issued a NFA letter dated
April 11, 1997. Post UST closure soil and groundwater assessment activities are documented in
the Comprehensive Site Assessment report and Monitoring Well Resampling Activities report
prepared by Ecological Services, Inc. and dated August 24, 1993 and January 7, 1994, respectively.
Additional groundwater assessment activities to document attenuation of compounds in
groundwater are documented in Quarterly Groundwater Sampling Reports prepared by CBM
Environmental Service, Inc through December 1995.
1995 AST Spill
Information provided in a Notice of Release letter prepared by CBM and a 24-hour Release report
prepared by DEQ (both prepared on April 4, 1995), indicated that early in the morning hours a
driver lost control of a truck and ran into an 8,000-gallon AST located south of the Charlotte Van
& Storage Co. warehouse building. The accident resulted in a release of approximately 1,300-
gallons of gasoline onto the ground surface. CBM reported that the spill was immediately
contained and cleaned up including excavation of potentially impacted soil in the area of the spill.
According to CBM, the spill was contained and clean-up was underway by 9:00 AM. There is no
release incident in the DEQ record in connection with the reported spill and no additional
information associated with the spill or the clean-up effort is available in the DEQ records.
2019 AST Spill
On January 29, 2019, approximately 25 to 30 gallons of gasoline spilled onto the ground south of
the Charlotte Van & Storage Co. warehouse building due to Purser Oil Company personnel
overfilling the 8,000-gallon AST. On March 1, 2019, approximately 29 tons of soil impacted by
the spill was over-excavated and transported off-Site for disposal. Post excavation samples were
collected for laboratory analysis of TPH-GRO and BTEX. Laboratory analytical results indicated
that no compounds were detected at concentrations exceeding the DEQ screening criteria. The
approximate location of the spill area is shown in Figure 2.
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June 2019 Phase I ESA
H&H completed Phase I Environmental Site Assessment (ESA) activities at the Site in June 2019.
The results of the Phase I ESA identified the following potential environmental concerns in
connection with the Site:
H&H observed an 8,000-gallon dual fuel (gasoline and diesel) AST and associated
dispensing systems located in the central portion of the Site south of the Charlotte Van &
Storage Co. warehouse building. The AST has been used to fuel Charlotte Van & Storage
Co. fleet vehicles since at least the early 1990s. The AST is not staged within a secondary
containment system. In addition, the dispenser systems appeared to be dated with no
obvious spill prevention equipment. Based on the age of the AST and associated
dispensing systems and the lack of secondary containment systems or spill prevention
measures, H&H identified the AST system and historical fueling operations to represent a
potential environmental concern in connection with the Site.
H&H observed a partially buried wash water AST north of the truck wash pad located in
the west-central portion of the 213 Verbena Street parcel. Rinse water generated during
truck washing activities flows across the wash pad into a drain system that discharges to
the 250-gallon wash water AST. The wash water AST is reportedly emptied by Haz-Mat
for off-Site disposal on an as needed basis. H&H also observed a 500-gallon waste oil
AST staged on the truck wash pad. During Site reconnaissance activities, the AST was
observed uncovered without a lid and the tank was partially filled with water and used oil.
The surface of the wash pad is asphalt-paved with several cracks and degraded areas.
Additionally, the drain and plumbing system for discharging rinse water to the holding tank
appeared to need maintenance and/or repair. H&H identified the potential for impact from
operations in and around the truck wash pad to represent a potential environmental concern.
H&H observed two larger floor drains located within the auto painting and repair portion
of the Quality Auto Painting tenant space (4615 Gilead Street). The drains appeared to be
consistent with the age of the building (1970s) and were observed to be in poor condition
and contained standing fluids. Operations in the 4615 Gilead Street Site building have
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historically included automotive repair, body work, and automotive painting. Historical
operations in the 4615 Gilead Street building have likely included use of certain petroleum
products and chlorinated solvents. H&H considers the potential for impact from discharge
of potentially hazardous materials into the floor drains and historical automotive repair and
painting operations in the 4615 Gilead Street Site building to represent a potential
environmental concern.
December 2019 Brownfields Assessment
H&H conducted Brownfields assessment activities at the Site in December 2019. The assessment
activities were conducted in accordance with the DEQ-approved Work Plan dated November 15,
2019. The Brownfields assessment activities included the collection of soil, groundwater, and soil
gas samples to evaluate for potential impacts and to assist in management of Site media during
proposed redevelopment activities. In addition, receptor survey activities were completed to
obtain information about land use, water supply, basements, underground utilities, drains, and
surface water bodies in the vicinity of the Site. A brief summary of the Brownfields assessment
activities is provided below.
Laboratory analytical results did not indicate the presence of VOC or SVOC concentrations
above DEQ Residential or Industrial/Commercial PSRGs. The metal concentrations
detected were within established concentrations for naturally occurring metals in North
Carolina soil, consistent with Site-specific ranges, and/or below DEQ Residential PSRGs
with the exception of the hexavalent chromium concentration detected in soil sample
samples SB-3 (1.23 estimated J value mg/kg) which is slightly above the background level
of 0.54 J mg/kg and the DEQ Residential PSRG of 0.31 mg/kg.
Laboratory analytical results indicated the presence of trichloroethylene (TCE) in
groundwater sample TMW-4 (194 µg/L) collected in the northwestern portion of the Site
at a concentration above the 2L Standard of 3 µg/L and DEQ Division of Waste
Management (DWM) Non-Residential Groundwater Screening Level (GWSL) of 4.4
µg/L. TCE was also detected in groundwater sample TMW-5/GW-DUP (1.9 µg/L/1.9
µg/L) collected near the truck servicing area above the DWM Residential GWSL of 1.0
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µg/L, but below the 2L Standard of 3 µg/L. TCE was not detected in the other samples
collected above laboratory detection limits.
In addition, the groundwater sample collected from TMW-4 contained a concentration of
tetrachloroethylene or PCE (250 µg/L) above the DWM Non-Residential GWSL of 48
µg/L and 2L Standard of 0.7 µg/L, a concentration of 1,2- 1,2-DCP (8.8 µg/L) above the
2L Standard of 0.6 µg/L and DWM Residential GWSL of 7.2 µg/L, and a concentration of
cis-1,1-DCE (193 µg/L) above the 2L Standard of 70 µg/L. The groundwater sample
collected from TMW-5/GW-DUP also contained a concentration of benzene (1.7 µg/L/1.6
µg/L) above the 2L Standard of 1.0 µg/L. No other VOCs or SVOCs were detected above
2L Standards or DWM GWSLs.
A concentration of chromium (11.1 µg/L) was detected in TMW-3 slightly above the 2L
Standard of 10 µg/L. However, elevated turbidity was observed during sampling. As such,
the chromium concentration detected in TMW-3 is not likely representative of Site
conditions and is likely the result of elevated turbidity in the sample. No other metals were
detected above 2L Standards or established GWSLs.
The soil gas analytical results indicate the presence of several VOCs above the laboratory
method detection limits in each of the soil gas samples. However, no compounds were
detected above their respective DEQ DWM Residential Vapor Intrusion Soil Gas
Screening Levels (SGSLs).
December and August 2020 Groundwater Assessment
H&H completed supplemental groundwater assessment activities at the Charlotte Van & Storage
Brownfields property to evaluate groundwater quality and estimate the volume of groundwater
that may need to be managed in the areas of planned utility installations. A summary of the results
of groundwater assessment activities is provided below.
Laboratory analytical results indicate that chlorinated solvents (PCE and/or TCE) were
detected at concentrations exceeding both the DEQ 2B Surface Water Standards and the
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DEQ 2L Groundwater Standards in groundwater samples collected in the western and
northern portions of the Site (TWM-6 and TMW-7). Based on results of the previous
December 2019 and August 2020 groundwater assessment activities, the source(s) of
impacts identified in the northern and northwestern portions of the Site appears to be
located off-Site to the north and/or north-northeast.
As stated above, the DEQ-approved EMP and recorded Brownfields Agreement require the
collection of final grade soil samples upon completion of soil disturbance activities. This Work
Plan has been prepared to fulfill the requirements of the EMP and recorded Brownfields
Agreement. The following sections describe the proposed final grade sampling activities.
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3.0 Final Grade Soil Assessment Activities
3.1 Final Grade Soil Sampling
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
non-residential occupants. The soil sampling activities will be performed in general accordance
with the DEQ Inactive Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup of
Contaminated Sites (Guidelines) dated September 2022, and 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.
Based on review of the Site Plan (Appendix A), conversations with the PD, and observations at
the Site, landscaped areas at the Site have been divided into 10 final grade evaluation areas (FG-1
through FG-10). 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.
11
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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 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 properly 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
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 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
12
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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
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.
3.4 Reporting
Following completion of the assessment activities and receipt of the analytical data, H&H will
document our findings in a Final Grade Soil Assessment Report. The report will include a
description of the 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
Final Grade Soil Sample Summary
Charlotte Van & Storage Co.
Charlotte, North Carolina
H&H Job No. LEN-008
https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/lennar (len)/len-008
verbena assemblage/final grade soil sampling/work plan/table/table 1 - sample summary.docx
Sample Objective Evaluation
Area
Aliquot Soil
Borings
Aliquot
Boring Depth
(ft bgs)
Number of Grab
VOC Samples
(8260)
Number of Composite
SVOC Samples
(8270)
Number of 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
FG-6 5 2 1 1 1
FG-7 5 2 1 1 1
FG-8 5 2 1 1 1
FG-9 5 2 1 1 1
FG-10 5 2 1 1 1
QA/QC FG-DUP -- -- 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; -- = not applicable
Duplicate sample will be collected concurrently with parent sample. Duplicate sample location will be selected in the field.
TITLE
PROJECT
SITE LOCATION MAP
CHARLOTTE VAN & STORAGE CO.
VERBENA STREET AND GILEAD STREET
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
1-4-2023 0
1LEN-008
SITE
0 2000 4000
APPROXIMATE
SCALE IN FEETN
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE WEST, NORTH CAROLINA, 1996
LEGEND
SITE PROPERTY BOUNDARY
PARCEL BOUNDARY
CAROLINA MOLDINGS
(4601 MACIE STREET)
BAKER CONSTRUCTION CO.
(129 VERBENA STREET)
VACANT COMMERCIAL BUILDING
FORMER ZESPA INDUSTRIES
(4516 NATIONS CROSSING ROAD)
VE
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YEOM
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LIGHT FIXTURE OUTLET/
SUN STONE MARBLE & GRANITE
(301 VERBENA STREET)
UNDER CONSTRUCTION
RESIDENTIAL
UNDER CONSTRUCTION
FORMER TODDY'S AUTOMOTIVE
(4528 NATIONS CROSSING ROAD)
NOTES:
1.AERIAL IMAGERY AND BASE DATA OBTAINED FROM
MECKLENBURG COUNTY GIS (2022).
PIEDMONT NATURAL GAS
(112-338 VERBENA STREET)
213 VERBENA STREET
4607 GILEAD STREET
FORMER VACANT WAREHOUSE
(4615 GILEAD STREET)
REVISION NO. 0
JOB NO. LEN-008
DATE: 10-6-22
FIGURE NO. 2
CHARLOTTE VAN & STORAGE CO.
VERBENA STREET AND GILEAD STREET
CHARLOTTE, NORTH CAROLINA
SITE MAP
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
License # C-1269 / #C-245 Geology
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REVISION NO. 0
JOB NO. LEN-008
DATE: 12-2-22
FIGURE NO. 3
CHARLOTTE VAN & STORAGE CO.
VERBENA STREET AND GILEAD STREET
CHARLOTTE, NORTH CAROLINA
PROPOSED FINAL GRADE
SOIL SAMPLE LOCATION MAP
LEGEND
BROWNFIELDS PROPERTY BOUNDARY
PROPOSED BUILDING FOOTPRINT
PROPOSED LANDSCAPED AREA
PROPOSED FINAL GRADE SOIL SAMPLE
ALIQUOT 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
VE
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NOTES:
1.PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY
GIS (2022).
2.SITE PLAN BASED ON REQUIRED PLANTING PLAN
PREPARED BY CLINE DESIGN DATED 10/21/2020.
FG-1A
FG-1E
FG-1D
FG-1B
FG-1C
FG-2C
FG-2B
FG-2A
FG-2D
FG-2E
FG-10E
FG-10D
FG-3C
FG-3B
FG-3A
FG-4A
FG-4C
FG-4D
FG-4E
FG-4B
FG-5C
FG-5B
FG-5A FG-5D
FG-5E
YEO
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FG-3
FG-1
FG-2
FG-4
FG-5
FG-6A
FG-7A
FG-8C
FG-9D
FG-10A
FG-6B
FG-6C
FG-6D
FG-6E
FG-6
FG-7B
FG-7C
FG-7D
FG-7E
FG-7
FG-8D
FG-8E
FG-8B
FG-8A
FG-8
FG-9E
FG-9C
FG-9A
FG-9B
FG-9
FG-10B
FG-10C
FG-10
BUILDING 1
BUILDING 2
FG-3D
FG-3E
S:
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Appendix A
Site Plan
UB
E
R
FO
O
D
DE
L
I
V
E
R
Y
6
8
10 11
6
16 12
814
1817
5
9
5
9
9
76
VIS
I
T
O
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VIS
I
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2
5
13
7 6
9
10
12
7
8
11
13
10 11
8
3
8
CO
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DU
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P
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R
2
C C C
LOADINGSPACE
C
C
C
C
C
BUILDING
#1
NA
T
I
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N
S
CR
O
S
S
I
N
G
R
O
A
D
GI
L
E
A
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S
T
R
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E
T
VERBENA STREET
CHALMERS STREET
MACIE STREET
YE
O
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O
A
D
FORM
E
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L
Y
O
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D
B
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I
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K
Y
A
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D
R
O
A
D
BUILDING
#2
POOL CLUB
HOUSE
MAINT.
BLDG.
PROPOSED 6"X12" STEPS
DUMPSTER/RECYCLE AREA W/GATED SCREENED ENCLOSURE (SEE
ARCHITECTURAL PLANS FOR DETAILS)
STANDARD 2'-6" CONCRETE CURB AND GUTTER (CLDS 10.17A) (SEE SITE DETAIL SHEET)
7'X22' PARALLEL PARKING SPACE (CLDS 50.09C)
STANDARD CONCRETE SIDEWALK (CLDS 10.22) (SEE SITE DETAIL SHEET)
TYPE II MODIFIED DRIVEWAY. (CLDS 10.25E) (SEE SITE DETAIL SHEET)
DIRECTIONAL ACCESSIBLE RAMP WITH DETECTABLE WARNING (CLDS 10.40)
(SEE DETAIL SHEET)
SITE LEGEND
A
B
D
E
F
G
H
I
J
K
PLANTING STRIP
L
M
N
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P
Q
R
S
T
STANDARD 1'-6" CONCRETE CURB AND GUTTER (CLDS 10.17A)
24"X24" "STOP" SIGN (R1-1) (SEE SITE DETAIL SHEET)
24" WHITE STOP BAR (SEE SITE DETAIL SHEET)
ACCESSIBLE PARKING SPACE, TYPICAL (CLDS 50.10A)(SEE SITE
DETAIL FOR ACCESSIBLE PARKING SPACE SIZE AND SIGN)
C
STANDARD DUTY ASPHALT PAVEMENT (SEE SITE DETAIL SHEET)
STANDARD DUTY 5' WIDE CONCRETE SIDEWALK (SEE SITE DETAIL SHEET)
HEAVY DUTY CONCRETE PAVEMENT (SEE SITE DETAIL SHEET)
PIANO STYLE CROSSWALK (CLDS 50.14) (SEE SITE DETAIL SHEET)
RETAINING WALL (CONTRACTOR TO PROVIDE FULL ENGINEERED PLANS
AND PERMIT THROUGH COUNTY AS REQUIRED)
6' HIGH DECORATIVE FENCE
POOL AND AMENITY AREA (SEE AMENITY PLANS BY OTHERS)
HEAVY DUTY ASPHALT PAVEMENT (SEE SITE DETAIL SHEET)
4' SWING GATE
U DIRECTIONAL PAVEMENT MARKING (SEE SITE DETAIL SHEET)
V BIKE RACK (FOR 4 BIKES) (SEE SITE DETAIL SHEET)
SWSL @ 4" - SINGLE WHITE SOLID LINE/4" WIDE
SWSL @ 24" - SINGLE WHITE SOLID LINE/24" WIDE
STRIPING LEGEND
1
2
PROPOSED CURB AND GUTTER
PROPOSED PARKING SPACES
PROPOSED ASPHALT PAVEMENT
PROPOSED STD. CONCRETE SIDEWALK
PROPOSED STRUCTURE
LEGEND FOR PROPOSED IMPROVEMENTS
100
EXISTING LOT LINES
BOUNDARY LIMITS
PROPOSED EASEMENT
EXISTING RIGHT OF WAY
PROPOSED HEAVY DUTY ASPHALT PAVEMENT
PROPOSED HEAVY DUTY CONCRETE PAVEMENT
PROPOSED SITE NOTE11
PROPOSED RIGHT OF WAY
PROPOSED STORM EASEMENT
PROPOSED SPILL CURB AND GUTTER
FO
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DESIGNED BY:
REVIEWED BY:
DRAWN BY:
DA
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Know what's below.
before you dig.Call
R FILE NUMBER:
DATE: 03/18/2020
6874-00
c
2
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2 1345
SITE DEVELOPMENT DATA
SITE ADDRESS
VERBENA MULTIFAMILY
213 VERBENA STREET, CHARLOTTE, NC 28217
TAX PARCEL ID# 149-034-12, 149-034-15, 149-034-16
ACREAGE 5.91
EXISTING USES INDUSTRIAL
PROPOSED USE RESIDENTIAL MULTIFAMILY APARTMENTS
PROPOSED UNITS 272
BUILDING HEIGHT
MAXIMUM BUILDING HEIGHT 50' (75' WITH BONUS)
MAX. BUILDING HEIGHT PROPOSED 54.65'
OPEN SPACE
OPEN SPACE REQUIRED NOT REQUIRED TO PROVIDE PUBLIC ON-SITE OPEN SPACE
OPEN SPACE PROVIDED N/A ACRES
ZONING CODE SUMMARY
EXISTING ZONING TOD-TR (TRANSIT ORIENTED DEVELOPMENT DISTRICT - TRANSIT
TRANSITION)
JURISDICTION CITY OF CHARLOTTE
SETBACKS AND BUFFERS
REAR YARD 0'
SIDE YARD 0'
FRONT SETBACK 16' MIN. FROM (FUTURE) BACK OF CURB
PARKING
PARKING SPACES REQUIRED0 SPACE(S) IN TOD DISTRICT
PARKING SPACES PROVIDED 292 STANDARD SPACES ( 10 HANDICAP, 8 COMPACT SPACES)
27 OFF-STREET PARKING
321 TOTAL SPACES
SHORT TERM BIKE SPACES REQUIRED 55 SPACES (1 PER 5 UNITS) 272 UNITS / 5 = 54.4
LONG TERM BIKE SPACES REQUIRED 44 SPACES (80% OF REQUIRED SPACES) 54.4 X 80%
= 43.5
SHORT TERM BIKE SPACES PROVIDED 61 SPACES (8 ONSITE SPACES WITH 53 WALL
HANGERS WITHIN UNITS)
LONG TERM BIKE SPACES PROVIDED 44 SPACES (WALL HANGERS WITHIN UNITS)
WASTE MANAGEMENT
SOLID WASTE REQUIRED: (1) X CU.YD. DUMPSTER PER 30 UNITS=
(272 UNITS / 30 UNITS X 8 CU. YDS.)= 72.5 CU. YDS.
32 CU. YD. DUMPSTER (8'X18'X6'HT)
SOLID WASTE PROVIDED:ON-SITE COMPACTOR
RECYCLING REQUIRED:(272 UNITS / 30 UNITS X 8 CU. YDS.)= 72.5 CU. YDS.
RECYCLING PROVIDED: PRIVATE SERVICES
SEE PLAN FOR LOCATION OF POSSIBLE FUTURE RECYCLING
AREA LOCATION
COMPLETION TIME LINE
BEGIN CONSTRUCTION: JULY 1, 2020
COMPLETE CONSTRUCTION:JULY 1, 2021
NATURAL AREA
REQUIRED NATURAL AREA N/A
NOTE
ALL CURB RADII 3' UNLESS OTHERWISE NOTED
SI
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L
A
N
C2-0
S
MK
J
I
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F
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G
G C
(TYP.)
C
(TYP.)
A
A
B (TYP.)
E
E
E
E
I
E
E
E
8.50'
18.50'
R10.00'
R10.00'
R5.00'R10.00'
R14.50'
R3.50'R3.50'
R5.00'
R5.00'
R10.00'
R5.50'
R5.00'
R5.00'
R15.00'
R5.00'
R5.00'
17.00'
8.50'
18.50'
26.37'
8.00'
22.00'
0 40'80'20'
SCALE: 1" = 40'
22.00'
23.0'
23.00'
23.00'
24.00'
23.00'
23.00'
17.00'
17.00'
R10.00'
8.50'
17.00'
8.50'
23.00'
8.50'
R25.00'
R15.00'
R10.00'
R10.00'
R1.50'
R8.00'
23.00'
R10.00'
R5.00'
R5.00'R5.00'
16.00'
7.50'
N
PROP. 15' SDE
PROP. 15' SDE
DOG PARK
(SEE AMENITY PLANS
BY OTHERS)
Q
Q
Q
Q
Q
Q
Q
R
R
R
R
R10.00'
23.0'
7.00'
SIDEWALK
8.50'
8.00' SIDEWALK
2.0'2.0'
10.0'10.0'10.0'
34.0'
11.4'11.4'
A
TIE INTO EXISTING CURB
TIE INTO EXISTING CURB
A
O
SEE SHEETS R1-0 & R1-1 FOR
GILEAD STREET DESIGN
K
H
F
A
T
T
T
E
P
T
INSET A - GATED ENTRANCE INSET B - DRIVEWAY 1
INSET C - DRIVEWAY 2
DRIVEWAY 1 (TYPE II MODIFIED) - SEE INSET B
GATED ENTRANCE - SEE INSET A
DRIVEWAY 2 (TYPE II MODIFIED) - SEE INSET C
26.0'
8.0'
12.0'12.0'
R1.0'
8.0'
13.0'
14.00'
LOADING AREA
DMH
DMH/RLW
ECH
I
23.00'
18.50'
8.50'
16.00'
8.50'
17.00'
B
12.00'
18.00'
24.00'
12.00'
18.00'
N
25.00'
PCCE
8.00' SIDEWALK
8.00' SIDEWALK
8.00' SIDEWALK
V
U (TYP.)
12.00'
EFFECTIVE SETBACK IS ROW (16' FROM BACK OF CURB)
7.00'
17.00'
12.00'
A
K
U
V
(TYP.)
B
H
A
K
H
B
R
B
26.00'
R8.00'
R8.00'
GI
L
E
A
D
S
T
R
E
E
T
25.00'
PCCE
15' SDE
EFFECTIVE SETBACK
IS ROW (16' FROM
BACK OF CURB)
N
R8.00'R8.00'R1.00'R1.00'
R1.00'
SCALE: 1"=10'SCALE: 1"=10'
SCALE: 1"=10'
O
M
24.00'
O
M
M
M
L
M
L
L
L
L
L
L
LL
L
L
L
L
L
L
L
L
L
L
L
M
TR
D
D
D
D
D
D
D
D
N
D
D
D
D
EOPEOP
EOP
EOP
EOP
EOP
EOP
R
EOP
NPOOL MAINTENANCE BLDG.
8.00' SIDEWALK
8" - #57 STONE GRAVEL PATH
CONTRACTOR SHALL INSTALL AND SUPPLEMENT EXISTING
TO PROVIDE CONTINUOUS PATH TO YEOMAN ROAD
V
2
2
1
1
1 (TYP.)
1 (TYP.)
1 (TYP.)
1 (TYP.)
1 (TYP.)
R20.00'
R20.00'
R4.00'
R10.00'
R8.00'
R8.00'
R8.00'
R8.00'
8' WIDE STANDARD DUTY ASPHALT PATH