23008_Electrical Apparatus_ SIR_2021.10.12

DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 10/13/2021 1:17 PM

I. Inspection Information
Date & Time: 10/12/2021 9:05 AM Inspection Type: Meeting

Brownfields Staff:
Kevin Slaughter

Other Personnel:
Nick Hotzelt - Wood, Jake Carter-SAMET Const.
Superintendent

Location:
Lat: 35.22238223226204, Long: -80.85491802512851,

Brownfields Inspection Report: Electrical Apparatus and Machine Co, 23088-19-060
10/12/2021 9:05 AM
Page 2 of 7

II. Project Information
Number: 23088-19-060 Name: Electrical Apparatus and Machine Co
Address: 308 West Carson
Blvd.; 1115, 1127 South Mint
St.; 308 West Palmer St.

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: Observed two VIMS communication tests being performed. First performed
on riser R3 on northern corner of building, and then R-1, R2 located on eastern side of
building. While onsite, observed VIMS risers, permanent and temporary vacuum
influence/sampling, and perimeter of vapor barrier within Retail 1 section of building.

Summary: N/A

Summary: High density apartment complex currently under construction.

Summary: Exposed soil consistent with construction phase of project.

Brownfields Inspection Report: Electrical Apparatus and Machine Co, 23088-19-060
10/12/2021 9:05 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

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

Brownfields Inspection Report: Electrical Apparatus and Machine Co, 23088-19-060
10/12/2021 9:05 AM
Page 4 of 7

IV. Inspector Comments

V. PHOTOGRAPHS

Photo 1: Shop-vac set up to extract from VIMS riser R3.

Onsite to observe VIMS communication retesting of riser R3. Vacuum influence was not
detected at observation point VMP-03 during previous communication testing. After
additional test was performed with no vacuum influence observed, a large 3-way syringe,
and eventually, a shop-vac was used to blow water out of the horizontal Teflon tubing to
remote monitoring point VMP-03. Following this procedure, retesting of riser R3 showed
good communication results.

One issue observed during the second communication test was that the internal Teflon
tubing was pulled out of observation point VMP-02 (Photo 6). Although vacuum influence
was observed on the outer 1” dia. PVC conduit, it is unknown if the vacuum measured is
from the slotted section of piping, or if there is a potential break in the conduit that
resulted in the Teflon tubing to pull lose from the internal bulkhead unions shown in the
VIMS Design.

Brownfields Inspection Report: Electrical Apparatus and Machine Co, 23088-19-060
10/12/2021 9:05 AM
Page 5 of 7

Photo 2: No vacuum influence observed initially at VMP-03 until tubing cleared of water using
shop-vac.

Photo 3: Following successful communication test with shop-vac, a lower vacuum fan was
tested, which also provided successful communication test results.
Brownfields Inspection Report: Electrical Apparatus and Machine Co, 23088-19-060
10/12/2021 9:05 AM
Page 6 of 7

Photo 4: Measuring vacuum influence from temporary observation point while simultaneously
extracting from VIMS risers R1 and R2.

Photo 5: Vacuum measurement from permanent observation point VMP-01. Tubing within all
vaults will have threaded caps, or valving installed, and airtight cap installed on PVC conduit to
prevent VI once building is closed in.
Brownfields Inspection Report: Electrical Apparatus and Machine Co, 23088-19-060
10/12/2021 9:05 AM
Page 7 of 7

Photo 6: Approximately 10-15 feet of Teflon tubing had pulled out of the 1” PVC conduit in
bottom right of photograph (VMP-02). Vacuum was observed on PVC conduit when checked
during communication testing.

Photo 7: Barrier within Retail 1 space. Washed gravel and piping to be installed and VIMS
barrier to be installed over washed gravel and piping. The vertical barrier in the photograph
will be laid over the new barrier and sealed per the manufacturer’s recommendations.