23018_Corey Transmission_SIR_20220112

DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 01/13/2022 2:56 PM

I. Inspection Information
Date & Time: 01/12/2022 9:55 AM Inspection Type: Meeting

Brownfields Staff:
Kevin Slaughter
Other Personnel:
Shannon Switch - H&H
Location:
Lat: 35.2099401, Long: -80.8687731,

Brownfields Inspection Report: Corey Transmission Service (511 West Tremont), 23018-19-060
01/12/2022 9:55 AM
Page 2 of 7

II. Project Information
Number: 23018-19-060 Name: Corey Transmission Service (511 West
Tremont)
Address: 511, 527 W. Tremont
Avenue

City: Charlotte

County: Mecklenburg

III. Environmental

Current Use of Property: Residential
Structures on Property: New Structures Violation: No

Vapor Mitigation Systems: Observed Vapor Mitigation Violation: No

Use of Surface Water or Groundwater: Not Observed Water Use Violation: No

Exposed Soils: Observed Exposed Soils Violation: No
Summary: Inspected Vapor Block 20 VI barrier installed within Building 4 footers prior to
concrete pour scheduled for later in the day (Photos 2-6).

Summary: N/A

Summary: New construction townhomes. Townhomes in different stages of completion
with some essentially complete and others yet to break ground.

Summary: Consistant with ongoing construction activities. Met with construction
superintendent to confirm that a hardcopy of EMP was present on-site, and a bound copy
was produced from within the construction trailer.

Brownfields Inspection Report: Corey Transmission Service (511 West Tremont), 23018-19-060
01/12/2022 9:55 AM
Page 3 of 7

Use of Basements: Not Observed Basement Violation: No

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

Summary: N/A

Condition:
Summary: N/A

No risk to the public observed at the time of the Site Inspection.

Brownfields Inspection Report: Corey Transmission Service (511 West Tremont), 23018-19-060
01/12/2022 9:55 AM
Page 4 of 7

IV. Inspector Comments

V. PHOTOGRAPHS

Photo 1: View of Townhome development facing north.

The VIMS barrier installation looked good, with only a couple of areas identified that
required additional taping. During the inspection, it was observed that a significant
amount of the tape utilized on Building 4 was manufactured by Stego Wrap and it was
being used with a competitor’s vapor barrier – VaporBlock VB-20 (Photos 2-5). The
project engineer was out of the office; however, I spoke with Andrew Besu with H&H and
the project engineer had contacted both barrier manufacturers to confirm this was not
an issue. It was determined that even though Stego Industries would not warranty the
work, it would meet the manufacturers specifications and the developer was willing to
accept the loss of the manufacturer’s warranty. Following an internal DEQ discussion, it
was determined this was acceptable with the Design Engineers sign-off.

Brownfields Inspection Report: Corey Transmission Service (511 West Tremont), 23018-19-060
01/12/2022 9:55 AM
Page 5 of 7

Photo 2: Hart & Hickman represenative pointing out section of barrier requiring additional
sealing.

Photo 3: Building 4 footprint facing west.

Brownfields Inspection Report: Corey Transmission Service (511 West Tremont), 23018-19-060
01/12/2022 9:55 AM
Page 6 of 7

Photo 4: Closeup of footer trench, vapor barrier, and rebar prior to concrete pour.

Photo 5: VaporBlock tape (silver), and StegoWrap tape (red) visible in photograph.

Brownfields Inspection Report: Corey Transmission Service (511 West Tremont), 23018-19-060
01/12/2022 9:55 AM
Page 7 of 7

Photo 6: Another townhome building footer following concrete pour.