WI0400576_Staff Report for New Remdiation System Application_20211020

Permit No. WI0400576
Date: 10/19/2021 County: Guilford
To: Michael Rogers
Permittee/Applicant: Weston Solutions
Central Office Reviewer: Michael Rogers Facility Name: Former Cotton Mill Square Site
I. GENERAL INFORMATION
1. This application is (check an that apply): ® New ❑ Renewal
❑ Minor Modification ❑ Major Modification
a. Date of Inspection: September 23, 2021
b. Person contacted and contact information: David Kane, PG; Phone: [phone],
[e-mail]
c. Site visit conducted by: Jim Gonsiewski.
d. Inspection Report Printed from BIMS attached: ® Yes n No.
e. Physical Address of Site including zip code: 801 Merritt Drive Greensboro NC 27407
f. Driving Directions if rural site and/or no physical address:
g. Latitude: 36°03'28"N Longitude:79°51'08"W
Source of Lat/Long & accuracy (i.e., Google Earth, GPS, etc.): Google Earth
II. DESCRIPTION OF INJECTION WELL(S) AND FACILITY
1. Type of injection system:
❑ Geothermal Heating/Cooling Water Return
® In situ Groundwater Remediation
❑ Non -Discharge Groundwater Remediation
❑ Other (Specify: )
2. For Geothermal Water Return Well(s) only
a. For existing geothermal system only:
Were samples collected from Influent/Effluent sampling ports? ❑ Yes ❑ No.
Provide well construction information from well tag:
b. Does existing or proposed system use same well for water source and injection? ❑ Yes ❑ No
If No, please provide source/supply well construction info (i.e., depth, date drilled, well contractor,
etc.) and attached map and sketch location of supply well in relation to injection well and any other
features in Section IV of this Staff Report.
3. Are there any potential pollution sources that may affect injection? ❑ Yes ® No
What is/are the pollution source(s)? On -Site Former Manufacturing Facilities
What is the distance of the injection well(s) from the pollution source(s) 250 to 600 feet
4. What is the minimum distance of proposed injection wells from the property boundary? 50 ft
5. Quality of drainage at site: ❑ Good
6. Flooding potential of site: ® Low
Adequate
❑ Moderate
❑ Poor
❑ High

7. For Groundwater Injection Remediation Systems only, is the proposed and/or existing groundwater monitoring
program (number of wells, frequency of monitoring, monitoring parameters, etc.) adequate? ® Yes ❑ No.
If No, attach map of existing monitoring well network if applicable and recommend any changes to the
groundwater -monitoring program.
8. Does the map included in the Application reasonably represent the actual site (property lines, wells, surface
drainage)? ® Yes n No, If No, or no map, please attach a sketch of the site. Show property boundaries,
buildings, wells, potential pollution sources, roads, approximate scale, and north arrow.
9. For Non -Discharge Groundwater Remediation systems only (i.e., permits with WQ prefix):
a. Are the treatment facilities adequate for the type of waste and disposal system? n Yes ❑ No ❑ N/A.
If No, please explain:
b. Are the site conditions (soils, topography, depth to water table, etc.) consistent with what was reported by
the soil scientist and/or Professional Engineer? ❑ Yes n No ❑ N/A. If no, please explain:
HI. EVALUATIONAND RECOMMENDATIONS
. 1. Do you foresee any problems with issuance/renewal of this permit? ❑ Yes ® No. If Yes, explain.
2. List any items that you would like WQROS Central Office to obtain through an additional information request.
Make sure that you provide a reason for each item:
Item
Reason
Stratigraphic cross section to the known or
projected depth of contamination that shows
the horizontal and vertical extent of the
contaminant plume in soil and groundwater,
major changes in lithology, and existing and
proposed wells.
The cross section provided in the application is
from the pilot test. This section does not contain
all the required information and depicts only the
area of the pilot test.
Area map based on the most recent USGS 7.5'
topographic map of the area at a scale of
1:24,000 showing the location of the proposed
injection site.
Map was not provided.
Map showing existing sources of potential or
known groundwater contamination, including
waste storage, treatment, or disposal systems
within the area of review of the injection well
or well system.
Map was not provided.

3. List specific special conditions or compliance schedules that you recommend to be included in the permit when
issued. Make sure that you provide a reason for each special condition:
Condition
Reason
4. Recommendation
❑ Deny. If Deny, please state reasons:
n Hold pending receipt and review of additional information by Regional Office
® Issue upon receipt of needed additional information
['Issue
5. Signature of Report Preparer(s):
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Signature of WQROS Regional Supervisor: L
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IV. ADDITIONAL REGIONAL STAFF REVIEW COMMENTS/ATTACHMENTS (Optional /IfNeeded)
The area of the proposed injection system was inspected on September 23, 2021. It is located along a street in
the former Cotton Mill Square (currently the Block 43 Cottages, a student housing area). The area of the
injection is flat (primarily a road and parking area) with easy access and located along the southeast boundary
of the property. There were no potential problems observed during the site visit. A pilot test conducted in
2019 indicated the proposed system was effective in remediating the contaminants of concern at the site.

View looking southwest of the proposed area of CAT 100 injection points. Former Extraction Well
EW-504 is visible to the right of the vehicle hood. The pilot test area was located to the right and
behind of EW-504. The injection points will be located along the right side of the road.

Compliance Inspection Report
Permit: WQ0036621 Effective: 02/26/19 Expiration: 01/31/24 Owner : Weston Solutions Inc
SOC: Effective: Expiration: Facility: Cotton Mill Square Site (CMS)
County: Guilford 801 Merritt Dr Se Of Spring Garden St And Mer
Region: Winston-Salem
Contact Person: Ed Mackey
Directions to Facility:
Greensboro NC 27407
Title: On -site Rep Phone: [phone]
System Classifications: PCNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
WQ0029385 Weston Solutions Inc - Cotton Mill Square
Inspection Date: 09/23/2021
Entry Time 10:10AM Exit Time: 11:15AM
Primary Inspector: Jim J Gonsiewski Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Routine
Permit Inspection Type: Groundwater Remediation
Facility Status: Compliant ❑ Not Compliant
Question Areas:
IN Wells
(See attachment summary)
Inspection Type: Compliance Evaluation
Treatment Units Sampling
Page 1 of 3

Permit: WQ0036621 Owner - Facility: Weston Solutions Inc
Inspection Date: 09/23/2021 Inspection Type : Compliance Evaluation
Reason for Visit: Routine
Inspection Summary:
Jim Gonsiewski of the WSRO on site at 10:10 AM 9/23/2021. Met with Greg Flasinski of Weston Solutions. Toured the
site. First visited the old remediation area. Previously a pump and treat system was located at the site. According to David
Kane of Weston Solutions, in 2009 the system was shut down due to extensive damage that occured during construction of
the Block 43 Apartments/Cottages student housing. 16 wells, a remediation system building, and associated underground
piping and valves were destroyed during the construction grading and work. Additionally, another 6 wells were damaged.
A remediation injection system (injection of diluted Newman Zone emulsified vegegtable oil in four injection wells across the
site) was permitted in February 2019. This system was abandoned in September 2019.
Observed the location of the new remediation system along Blunt street in the paved area along the southwestern boundary
of the site. Area appeared to have good access and room to install the new system.
Page 2 of 3

Permit: WO0036621
Inspection Date: 09/23/2021
Owner - Facility: Weston Solutions Inc
Inspection Type : Compliance Evaluation
Reason for Visit: Routine
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