18032_Carter Woodson_SIR_20220630

DWM Brownfields Inspection Report
Submitted By: jkslaughter_ncdenr
Submitted Time: 07/06/2022 7:18 AM

I. Inspection Information
Date & Time: 06/30/2022 9:40 AM Inspection Type: Meeting

Brownfields Staff:
Kevin Slaughter, Seth Titley, Tyler Pearson
Other Personnel:
Conan Fitzgerald - AECOM
Location:
Lat: 36.0666554, Long: -80.2314058,

Brownfields Inspection Report: Carter G. Woodson Charter School, 18032-14-034
06/30/2022 9:40 AM
Page 2 of 7

II. Project Information
Number: 18032-14-034 Name: Carter G. Woodson Charter School
Address: 420, 437 Goldfloss St

City: Winston Salem

County: Forsyth

III. Environmental

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

Summary: An active VIMS is installed within the southern school building described
above. The system has three fans mounted on the exterior of the western end of the
building (Photo 1). Three trunk lines extract air from a combination of suction pits and
relatively short sub-slab trenches, most of which can be identified by vinyl floor tiles that
have been replaced following the installations (Photos 2 and 3). Liquid filled u-tube
manometers, riser labeling, vapor pins, valving and system alarms were visible during the
inspection. During the Site Inspection, DEQ requested that AECOM install labels on
exterior blower discharge piping.

Summary: During the Site Inspection, the future use of creek water for a proposed goat
enclosure was mentioned by maintenance staff at the school. This would not be allowed
based on Land Use Restrictions (LURU’s) for the property.

Summary: During the Site Inspection, the only structure inspected was a newer single
story school building located on southern side of Goldfloss St.

Summary: N/A

Brownfields Inspection Report: Carter G. Woodson Charter School, 18032-14-034
06/30/2022 9:40 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

Based on vacuum measurements observed within the school building (Photos 4 and 5),
the VIMS appears to be generally operating as designed, although two vapor pins on the
eastern end of the building had no measurable vacuum influence (Photo 6). This
operation of this portion of the VIMS may need to be reevaluated.

There are large gardens present on the southwestern portion of the property which are
used to grow vegetables (Figure 7). Some areas appear to be slightly raised, while others
are not. Although a black fabric material is installed below the soil/mulch layer, it is
unknown if this material would prevent roots from the growing from plants above the
fabric, into native soil below the fabric.

Brownfields Inspection Report: Carter G. Woodson Charter School, 18032-14-034
06/30/2022 9:40 AM
Page 4 of 7

IV. Inspector Comments

V. PHOTOGRAPHS

Photo 1: Exterior active VIMS fans, exhaust risers, VIMS alarms, and lockable disconnects
located on western end of school building. Requested during Site Inspection that AECOM install
labels on exterior riser piping.

During the Site Inspection, maintenance personnel identified a proposed goat enclosure
area as being west of the existing vegetable gardens, and not to the south as shown on
Mid-Atlantic’s drawing depicting the proposed location of the goat pen (Photo 7 and
attachment). As mentioned previously, utilizing water from the creek to provide water for
the goats was mentioned while on-site which would not be allowed under the existing
LUR’s for the property. Following the Site Inspection, the goat enclosure, possible use of
water from the creek, presence of vegetable gardens and current condition of the VIMS
was discussed with the DEQ Project Manager.

Brownfields Inspection Report: Carter G. Woodson Charter School, 18032-14-034
06/30/2022 9:40 AM
Page 5 of 7

Photo 2: Example of PVC riser extracting from suction pit located directly below riser as
indicated by replacement floor tile.

Photo 3: PVC riser on back wall extracting from sub-slab extraction trench. The trench location
can be identified from lighter colored replacement floor tiles below desks.
Brownfields Inspection Report: Carter G. Woodson Charter School, 18032-14-034
06/30/2022 9:40 AM
Page 6 of 7

Photo 4: Liquid filled U-tube manometers and labeling were installed near the ceiling on each
suction riser.

Photo 5: Example of vacuum measurement from sub-slab vapor pin located in classroom. Units
are in “WC.
Brownfields Inspection Report: Carter G. Woodson Charter School, 18032-14-034
06/30/2022 9:40 AM
Page 7 of 7

Photo 6: One of two locations (restroom) where no measurable vacuum was measured during
the Site Inspection.

Photo 7: Facing west across vegetable garden at the proposed goat enclosure location
(according to maintenance staff). This location is significantly north of the area identified in a
figure prepared by Mid-Atlantic prior to the Site Inspection (attached).