WI0800435_Staff Report_20201118

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North Carolina Department of Environmental Quality - Division of Water Resources
WQROS REGIONAL STAFF REPORT FOR
UIC Program Support
Permit No. WI0800435
Date: 11/18/2020 County: Pender
To: Shristi Shrestha Permittee/Applicant: David& Cynthia Smith
Central Office Reviewer Facility Name: David& Cynthia Smith geothermal well system
L GENERAL INFORMATION
1. This application is (check an that apply): ❑ New ® Renewal
❑ Minor Modification ❑ Major Modification
a. Date of Inspection: 11/17/2020
b. Person contacted and contact information: David Smith: dgreysmith&gmail.com
c. Site visit conducted by: Geoff Kegley
d. Inspection Report Printed from BIMS attached: ❑ Yes ® No.
e. Physical Address of Site including zip code: 710 Brown Pelican Lane, Hampstead, NC 28443
f. Driving Directions if rural site and/or no physical address:
g. Latitude: Longitude:
Source of Lat/Long & Accuracy (i.e., Google Earth, GPS, etc.):_
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: GW-1 copy attached
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
What is/are the pollution source(s)?
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What is the distance of the injection well(s) from the pollution source(s)?
What is the minimum distance of proposed injection wells from the property boundary?
Quality of drainage at site: ❑ Good ® Adequate ❑ Poor
Flooding potential of site: ® Low ❑ Moderate ❑ High
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7. For Groundwater Remediation Injection 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. 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
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
5. Signature of Report Preparer(s):
r_�"
d by:
Signature of WQROS Regional Supervisor: S
11/18/2020 HABAUACMC434...
Date:
—DocuSigned by:
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IV ADDITIONAL REGIONAL STAFF REVIEW COMMENTS/ATTACHMENTS (Optional/If Needed)
This review was conducted for a permit renewal request for a geothermal injection well system for
the Smith residence. On 11/17/2020, staff visited the home to inspect the well system. Source well
water and water prior to injection were sampled for Metals, Total and Fecal Coliform, Nitrates,
Chloride, Sulfate and Total Dissolved Solids. Sampling results will be forwarded to the Central Office
and owner when received from laboratory. System operation has been normal. Some iron staining
is present at the injection well head. Water occasionally backs up in the injection well and overflows
through the well vent tube. This may be due to iron bacteria build up in the well. If assimilating the
water in injection well becomes a problem, the well will need to be rehabilitated.
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