24043_Gas Fired Products_SIR_2022.04.06

DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 04/07/2022 10:14 AM

I. Inspection Information
Date & Time: 04/06/2022 11:15 AM Inspection Type: Meeting

Brownfields Staff:
Kevin Slaughter
Other Personnel:
Alexis McKenzie - Hart & Hickman
Location:
Lat: 35.2103702, Long: -80.868301,

Brownfields Inspection Report: Gas Fired Products (RN), 24043-20-060
04/06/2022 11:15 AM
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II. Project Information
Number: 24043-20-060 Name: Gas Fired Products (RN)
Address: 421 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: Soil was being removed, and additional stone was brought in, to increase the
sub-slab stone thickness. Once this is completed, the slotted PVC suction piping and solid
piping crossing the thickened slab trenches will have to be readjusted and sloped as
needed.

Summary: N/A

Summary: High density apartment building currently under construction.

Summary: Consistent with site activities, and EMP for site.

Brownfields Inspection Report: Gas Fired Products (RN), 24043-20-060
04/06/2022 11:15 AM
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Use of Basements: Observed Basement Violation: Yes

Storage of Chemicals: Not Observed Chemical Violation: No

Groundwater Monitoring Wells: Not Observed Monitoring Well Violation: No

Current Exposure to Public/Public Risk:

Summary: Soil contact walls are present with no VIMS barrier on exterior side as
designed. Not investigated during this site visit, however additional details are provided
in the March 3, 2022, Site Inspection Report.

Summary: N/A

Condition:
Summary: N/A

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

Brownfields Inspection Report: Gas Fired Products (RN), 24043-20-060
04/06/2022 11:15 AM
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IV. Inspector Comments

V. PHOTOGRAPHS

Photo 1: Soil elevation being cut down to so that sub-slab gravel thickness below and above the
VIMS piping could be increased.

Site inspection performed during break in smoke and coupon testing being performed at
the Powers Site on opposite side of W. Tremont Ave. VIMS installation had begun on
southwestern portion of property. However, insufficient stone thickness was applied
prior to VIMS piping being installed which was identified during prior H&H inspection.
The inadequate stone thickness was being addressed at the time the DEQ Site Inspection
was performed.

Brownfields Inspection Report: Gas Fired Products (RN), 24043-20-060
04/06/2022 11:15 AM
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Photo 2: Additional gravel being brought in for VIMS gravel layer.

Photo 3: Example of foam collar installed around solid piping crossing trenches for protection.
Slope of solid piping will be checked and adjusted following gravel addition.

Brownfields Inspection Report: Gas Fired Products (RN), 24043-20-060
04/06/2022 11:15 AM
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Photo 4: Sub-slab vacuum/sampling monitoring point.

Photo 5: Open end on vacuum/sampling monitoring point prior to additional stone being added
below piping, and backfilled with stone
Brownfields Inspection Report: Gas Fired Products (RN), 24043-20-060
04/06/2022 11:15 AM
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Photo 6: VIMS header pipe crossing thickened footers in several locations.

Photo 7: VIMS piping being extended thru slab instead of being core drilled through adjacent
wall for structural reasons. The DEQ Inspector did not see an issue with this modification.