WI0400551_Staff Report_20200708

Permit No. New Permit
Date: 07/08/2020 County: Stokes
To: Michael Rogers Permittee/Applicant: _Duke Energy Carolinas
Central Office Reviewer: Michael Rogers Facility Name: _Belews Creek Steam Station.
L GENERAL INFORMATION
1. This application is (check an that apply): ® New ❑ Renewal
❑ Minor Modification ❑ Major Modification
a. Date of Inspection: Not performed
b. Person contacted and contact information: Scott E. Davies, PG; Phone: [phone] (0) or 704.661.6823
(cell), Scott.Davies&duke-energy
c. Site visit conducted by: Not visited.
d. Inspection Report Printed from BIMS attached: ❑ Yes ® No.
e. Physical Address of Site including zip code: 3195 Pine Hall Road, Belews Creek, NC27009
f. Driving Directions if rural site and/or no physical address:
g. Latitude: 36°17'48.46"N_ Longitude: 80°04'50.62" 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 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)? coal ash basin___
What is the distance of the injection well(s) from the pollution source(s)_
4. What is the minimum distance of proposed injection wells from the property boundary? 100 ft
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
Well Variance Request Submittal
The narrative requests a variance for the
infiltration wells. A separate variance request is
required since the infiltration wells are designed
to be screened across three water bearing zones.
Typical well schematic for extraction well.
Infiltration well schematic was included but the
extraction well schematic was not included.
List number of wells to be installed in Phase 1
The permit application lists 74 wells to be
and Phase 2 separately.
installed. The total number listed in the narrative
is higher.
Additional information on the pilot test
Include constituents to be analyzed and sampling
frequency for treated water that is to be injected
into the infiltration wells, and the timetable for
the test.

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
A pilot test report shall be submitted to UIC
Unit and WSRO for review before
implementing full scale remediation.
To determine whether the plume will be pushed
further downgradient or deeper into the aquifer
by the injection.
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):
SocaSigned-b .
E197B66F179D45F...
Signature of WQROS Regional Supervisor: L-OA, 't S~J"
145B49E225C94EA...
Date: 7/8/2020
IV. ADDITIONAL REGIONAL STAFF REVIEW COMMENTS/ATTACHMENTS (Optional /If Needed)