21030_Trenton Cotton Mill_SIR_2021.09.21

DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 09/22/2021 8:12 AM

I. Inspection Information
Date & Time: 09/21/2021 11:24 AM Inspection Type: Meeting

Brownfields Staff:
Kevin Slaughter
Other Personnel:
John Davis - Cardno
Location:
Lat: 35.2637957, Long: -81.1914042,

Brownfields Inspection Report: Trenton Cotton Mill, 21030-17-036
09/21/2021 11:24 AM
Page 2 of 7

II. Project Information
Number: 21030-17-036 Name: Trenton Cotton Mill
Address: 620 W Franklin Blvd,
612 W Main Ave

City: Gastonia

County: Gaston

III. Environmental

Current Use of Property: Residential
Structures on Property: Existing 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: Observed gravel layer and sub-slab VIMS piping inspection during Site
Inspection. Sub-slab monitoring points have not been installed yet (see inspector
comments).

Summary: N/A

Summary: Former textile mill building being converted into high density residential
apartments.

Summary: Consistant with construction/redevelopment activities.

Brownfields Inspection Report: Trenton Cotton Mill, 21030-17-036
09/21/2021 11:24 AM
Page 3 of 7

Use of Basements: 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: Land Science Retro-Coat VIMS barrier had not been applied to soil contact
masonry walls prior to this inspection, although this is currently planned and has been
approved by DEQ Brownfields. Below grade soil-contact masonry/brick walls visible in
Photo 5.

Summary: N/A

Condition:
Summary: N/A

Site perimeter fenced with temporary construction fencing, no risk to public observed at
the time of the Site Inspection.

Brownfields Inspection Report: Trenton Cotton Mill, 21030-17-036
09/21/2021 11:24 AM
Page 4 of 7

IV. Inspector Comments

V. PHOTOGRAPHS

Photo 1: View of former Mill Building facing east.

On-site to observe gravel/sub-slab piping inspection being performed by Cardno. All
piping is currently dry-fit and is satisfactory with the exception of a few 4” dia. PVC
sanitary "T's" that Mr. Davis requested be rotated for better airflow before being gluing.
No issues observed with the sub-slab piping installation, although additional sub-slab
suction piping was added to VIMS in section of building where Sub-slab soil gas sample
SSSG-3 interconnecting VIMS fields in multiple locations. Cardno to install Cox-Colvin
vapor pin inserts prior to concrete pour, so that VIMS barrier will not be penetrated when
installing sub-slab sampling/vacuum observation points.

Brownfields Inspection Report: Trenton Cotton Mill, 21030-17-036
09/21/2021 11:24 AM
Page 5 of 7

Photo 2: Horizontal slotted VIMS piping with 4” dia. partial riser visible within eastern portion
of building (vicinity of past Soil Vapor sample SV-1). Piping is dry-fit, and additional stone to be
place around piping, including where soil contact is viable in photograph.

Photo 3: Workers dry fitting PVC VIMS piping during gravel/piping inspection.

Brownfields Inspection Report: Trenton Cotton Mill, 21030-17-036
09/21/2021 11:24 AM
Page 6 of 7

Photo 4: Close-up of Sch. 40 PVC suction piping and washed gravel trench.

Photo 5: Additional VIMS suction piping within lower level where Retro-Coat to be used on
brick walls visible in photograph.

Brownfields Inspection Report: Trenton Cotton Mill, 21030-17-036
09/21/2021 11:24 AM
Page 7 of 7

Photo 6: Doorway to stairwell to access lower-level residential space. Exterior stairwell will be
open air and not an enclosed space.

Photo 7: Four-inch dia. PVC VIMS riser penetrating roof. The riser piping will eventually extend
downwards and tie into below grade suction piping.