09060_Camden Square 2nd Amend_SIR_20210712

DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 07/16/2021 12:10 PM

I. Inspection Information
Date & Time: 07/12/2021 8:37 AM Inspection Type: Meeting

Brownfields Staff:
Kevin Slaughter
Other Personnel:
Alexis McKenzie - H&H, and Justin Shore -
Liles Construction Superintendent
Location:
Lat: 35.21183, Long: -80.86151,

Brownfields Inspection Report: Camden Square 2nd Amendment, 09060-05-060
07/12/2021 8:37 AM
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II. Project Information
Number: 09060-05-060 Name: Camden Square 2nd Amendment
Address: 127 W Worthington
Ave

City: Charlotte

County: Mecklenburg

III. Environmental

Current Use of Property: Mixed Use
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: Not Observed Exposed Soils Violation: No

Summary: Active VIMS present with centrifugal blower and exhaust stack located outside
building (blower located in metal box at ground level for cosmetic reasons). Low vacuum
alarm, and telemetry system located within adjacent pump room. Checked vacuum at
five vapor pins during site visit, all of which exceeded DEQ’s minimum 4 pascal vacuum
requirements.

Summary: N/A

Summary: 13 story new construction, with commercial space on first floor (exercise
studio, future restaurant and a third tenant space still to be leased), with residential
apartments located on floors 2-13. There is a lobby and mail room on first floor (in
addition to several mechanical type rooms and two stairwells), however, there is no on-
site leasing office, with apartments shown by appointment only.

Summary: N/A

Brownfields Inspection Report: Camden Square 2nd Amendment, 09060-05-060
07/12/2021 8:37 AM
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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

TCE has been detected in indoor air sampling as high as 1.1 ug/m3 on the ground floor;
with plans to resample in the near term. The ground floor is occupied an active mail
room, elevator lobby, two stairwells, and by periodic occupation of exercise studio (open
by appointment only). The upper residential floors have not been sampled but are at
least partially occupied by residents. As such, exposure on the upper floors is unknown,
but may include exposure to TCE.

Brownfields Inspection Report: Camden Square 2nd Amendment, 09060-05-060
07/12/2021 8:37 AM
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IV. Inspector Comments

V. PHOTOGRAPHS

Photo 1: View of mix use building facing south.
During the site inspection, observed VIMS, vapor monitoring points, recorded vapor pin
vacuum measurements, inspected saw cut patches for sub-slab utilities within Retail 1
and 2 Areas (Retail 3 space not currently leased and no cuts made at this time).

Performed smoke testing at numerous floor joints, saw cut patches, piping and utility
penetrations. Did not identify any short-circuiting at the time of the site inspection,
however, photographs appeared to identify one area of short-circuiting where a utility
line repair was taking place. The environmental consultant was notified and intends to
address this area prior to the concrete repair being made.

Brownfields Inspection Report: Camden Square 2nd Amendment, 09060-05-060
07/12/2021 8:37 AM
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Photo 2: VIMS blower within black vented box, and exhaust stack

Photo 3: Vacuum measurement at sub-slab monitoring point. Lowest vacuum observed during
site visit was 0.074” WC (18.4 Pascals).
Brownfields Inspection Report: Camden Square 2nd Amendment, 09060-05-060
07/12/2021 8:37 AM
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Photo 4: Utility trench saw cut sealing being performed within Retail 1 during Site Inspection.

Photo 5: Typical utility line penetrations in ceiling (Retail 3).
Brownfields Inspection Report: Camden Square 2nd Amendment, 09060-05-060
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Photo 6: Workout studio within Retail Space 2. Utility floor trench repair within this and
workout studio locker room/sales area not visible in photograph.

Photo 7: Smoke pen indicating short circuiting around utility line repair within Retail 1 space.
Barrier seal to be addressed prior to repouring concrete patch.