24022_Pete's Texaco_SIR_20220915

DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 09/23/2022 7:28 AM

I. Inspection Information
Date & Time: 09/15/2022 9:35 AM Inspection Type: Meeting

Brownfields Staff:
Kevin Slaughter
Other Personnel:
Will Frazier - Terracon, Elite Radon Team
Location:
Lat: 35.20383617, Long: -80.82498279

Brownfields Inspection Report: Pete's Texaco, 24022-20-060
09/15/2022 9:35 AM
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II. Project Information
Number: 24022-20-060 Name: Pete's Texaco
Address: 420 Providence Rd.

City: Charlotre

County: Mecklenburg

III. Environmental

Current Use of Property: Commercial/Retail
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 Coupon testing & smoke testing of NitraCore VIMS, including
subsequent repairs (Photos 1-8). See Inspector Comments for additional information.

Summary: N/A

Summary: New construction medical office.

Summary: Soil pile present during prior site visit has been covered with polyethylene
sheeting as requested by DEQ inspector to prevent runoff (Photo 9).

Brownfields Inspection Report: Pete's Texaco, 24022-20-060
09/15/2022 9:35 AM
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Use of Basements: Not Observed Basement Violation: No

Storage of Chemicals: Observed Chemical Violation: No

Groundwater Monitoring Wells: Not Observed Monitoring Well Violation: No

Current Exposure to Public/Public Risk:

Summary: N/A

Summary: Only chemicals observed onsite were Land Science VIMS barrier installation,
and liquid smoke for smoke machine barrier testing.

Condition:
Summary: N/A

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

Brownfields Inspection Report: Pete's Texaco, 24022-20-060
09/15/2022 9:35 AM
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IV. Inspector Comments

V. PHOTOGRAPHS

Photo 1: Elite Radon injecting smoke below VIMS barrier. Shop Vac is used to push smoke from
smoke machine under VIMS barrier for leak testing.
The Site Inspection was performed to observe Terracon VIMS barrier inspection
consisting of smoke testing, coupon sampling, potential repairs including respraying if
required and application of protective geotextile cover once completed. During smoke
testing, one significant location was identified that needed repair (Photos 1 through 3) in
addition to several smaller areas which were resprayed. Coupon samples of the barrier
were measured, repaired, then approximately 25% of the barrier was resprayed to build
up thickness where coupon samples were slightly thinner than required (Photos 5
through 7). Following respraying, a protective geotextile barrier was installed over entire
VIMS barrier prior to pouring concrete.

Brownfields Inspection Report: Pete's Texaco, 24022-20-060
09/15/2022 9:35 AM
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Photo 2: Smoke coming up thru CMU block around monitoring and test points during testing.

Photo 3: Applying barrier sealant by hand around piping and within CMU blocks shown in Photo
2. This sealed any leaks, and no further leakage was observed during testing.

Brownfields Inspection Report: Pete's Texaco, 24022-20-060
09/15/2022 9:35 AM
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Photo 4: Prior to capping, smoke was observed exiting monitoring points during barrier smoke
testing.

Photo 5: Terracon personnel using calipers to measure and record vapor barrier coupon
thickness.
Brownfields Inspection Report: Pete's Texaco, 24022-20-060
09/15/2022 9:35 AM
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Photo 6: Coupon testing repair

Photo 7: Glossy section of barrier that was resprayed following coupon measurements.
Brownfields Inspection Report: Pete's Texaco, 24022-20-060
09/15/2022 9:35 AM
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Photo 8: Installing protective geotextile fabric over sprayed VIMS barrier.

Photo 9: Polyethylene sheeting installed over soil pile requested during previous Site
Inspection.