HomeMy WebLinkAbout22023_Woodlawn Green_SIR_20201009
DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 10/09/2020 10:14 AM
I. Inspection Information
Date & Time: 10/09/2020 8:43 AM Inspection Type: Meeting
Brownfields Staff:
Kevin Slaughter
Other Personnel:
Drew Vincent – Hart & Hickman, David Byrd
& Thomas Kinney Project Managers
Location:
Lat: 35.17693, Long: -80.88506,
Number: 22023-18-060 Name: Woodlawn Green (RN)
Brownfields Inspection Report: Woodlawn Green (RN), 22023-18-060
10/09/2020 8:43 AM
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Address: 200, 202, 204, 206,
208 And 210 E. Woodlawn Rd,
5000, 5019 And 5111 Nations
Crossing Rd
City: Charlotte
County: Mecklenburg
III. Environmental
Current Use of Property: Residential
Structures on Property: New Structures Violation: No
Vapor Mitigation Systems: Not Observed Vapor Mitigation Violation: Unknown
Use of Surface Water or Groundwater: Not Observed Water Use Violation: No
Exposed Soils: Observed Exposed Soils Violation: No
Use of Basements: Observed Basement Violation: Unknown
Summary: Passive turbine type VIMS to be installed although no VIMS components have
been installed to date. VIMS barrier should have been installed against “Terrace Level”
split-wall that has since been backfilled, however, this barrier was not installed and was
the reason for the site meeting.
Summary: N/A
Summary: Apartment complex currently under construction
Summary: Typical exposure of soil expected during site development activities.
Summary: As stated above, VIMS barrier not installed on exterior “split-wall” of terrace
level (apartment building #3) where backfilling behind wall has been completed. VIMS
barrier is included in the VIMS design previously approved by the NC Brownfields
program.
Brownfields Inspection Report: Woodlawn Green (RN), 22023-18-060
10/09/2020 8:43 AM
Page 3 of 7
Storage of Chemicals: Not Observed Chemical Violation: No
Groundwater Monitoring Wells: Not Observed Monitoring Well Violation: No
Current Exposure to Public/Public Risk:
Summary: N/A
Condition:
Summary: N/A
Site perimeter fenced, no observed public risk at time of inspection.
Brownfields Inspection Report: Woodlawn Green (RN), 22023-18-060
10/09/2020 8:43 AM
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IV. Inspector Comments
V. PHOTOGRAPHS
Photo 1: Upper level of apartment building (prior to pouring concrete slab) where soil was
backfilled against concrete wall of "lower level" apartments. VIMS barrier was not installed
over waterproofing applied to concrete wall as shown in approved VIMS Plan.
Onsite to discuss VIMS vapor barrier in VIMS Plan that was left off basement wall
(photographs 1-3) prior to backfilling for upper level Entrance Level portion of
apartments. During site visit, received additional documents on waterproofing (MiraDri
860/861) from contractor.
H&H is proposing to install a trench along the length of upper wall in contact with drain
board and any void space along exterior wall (Photo 2). Trench would be backfilled with
gravel, which would allow communication between exterior wall drain board/void space
and the upper level VIMS gravel field. According to H&H, this would eliminate the
potential of VI through the basement wall. This proposal will be discussed by NC
Brownfields prior to final approval.
Brownfields Inspection Report: Woodlawn Green (RN), 22023-18-060
10/09/2020 8:43 AM
Page 5 of 7
Photo 2: View of basement wall with exterior water proofing and moisture collecting drain
board terminating at upper level floor slab (to be poured). H&H has proposed tying in upper
level VIMS to vertical drain board using perimeter gravel trench to allow potential vapors to be
removed by upper system.
Brownfields Inspection Report: Woodlawn Green (RN), 22023-18-060
10/09/2020 8:43 AM
Page 6 of 7
Photo 3: Exterior wall where grade tapers down from upper (entrance) level, to lower (terrace)
level. Waterproofing, VIMS barrier, and drain board has not been installed yet.
Photo 4: Basement wall being constructed (Building #1) prior to receiving moisture barrier,
VIMS liner, and drain board. Side of wall visible in photo will have waterproofing installed
before being backfilled with soil prior to starting upper level “entrance level” apartment units.
Brownfields Inspection Report: Woodlawn Green (RN), 22023-18-060
10/09/2020 8:43 AM
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Photo 5: Elevator shaft under construction during site visit. 20-mil poly used to line elevator pit.