WI0400098_Staff Report for UIC Permit Renewal (without modification)_20210106

Permit No. WI0400098
Date: 01/06/21 County: Fors
To: Shristi Shresta Permittee/Applicant: ABB, Inc.
Central Office Reviewer: Shristi Shresta Facility Name: Former Flakt Products Site
L GENERAL INFORMATION
1. This application is (check an that apply): ❑ New ® Renewal
❑ Minor Modification ❑ Major Modification
a. Date of Inspection: December 31, 2020
b. Person contacted and contact information: Joe Deatherage 865-671-6774
c. Site visit conducted by: Jim Gonsiewski.
d. Inspection Report Printed from BIMS attached: ® Yes ❑ No.
e. Physical Address of Site including zip code: 2000 Lowery Street Winston-Salem, NC
f. Driving Directions if rural site and/or no physical address:
g. Latitude: 36.091843 N Longitude: 80.212882 W
Source of Lat/Long & accuracy (i.e., Google Earth, GPS, etc.): Goo le 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 Wells) 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)? Two solvent pits and one solvent AST
What is the distance of the injection well(s) from the pollution source(s) 50 Feet
4. What is the minimum distance of proposed injection wells from the property boundary? N/A
5. Quality of drainage at site: ❑ Good ® Adequate ❑ Poor
6. Flooding potential of site: ® Low ❑ Moderate ❑ 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 ❑ 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? ❑ 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 ❑ No ❑ N/A. If no, please explain:
III. EVAL UATION AND 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
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:
❑ Hold pending receipt and review of additional information by Regional Office
❑ Issue upon receipt of needed additional information
® Issue
DocuSigned by:
5. Signature of Report Preparer(s):
E197B66F179D45F... DocuSigned by:
Signature of WQROS Regional Supervisor: L ' -T Sti�du
Date: 1/ 6/ 2 0 21 145B49E225C94EA...
IV. ADDITIONAL REGIONAL STAFF REVIEW COMMENTS/ATTACHMENTS (Ontional/If Needed)
WSRO personnel conducted a site visit on December 31, 2020. The site was well maintained and in good
condition. No concerns were observed at either the monitoring wells or the injection wells. Based on the apparent
stability of the contaminant plume, the remediation system was shut down on July 27, 2017. Currently fourteen
onsite monitoring wells along with two offsite monitoring wells are sampled annually. The building that houses
the remediation equipment was also inspected. The equipment, consisting of a compressor, stabilization tank, and
an air -stripper, appear to be in good condition.