NCG510542_UIC Well staff report for new GWv Remediation injection Well under NPDES Permit NCG510542._20200403

Permit No. WI0300431
Date: 04/03/2020 County: Mecklenbur
To: Mike Rogers UIC Permitting_
Permittee/Applicant: (Owner)_Plantation Pipeline
Central Office Reviewer Facility Name: Michael Rogers
L GENERAL INFORMATION
1. This application is (check all that apply): ® New ❑ Renewal
❑ Minor Modification ❑ Major Modification
a. Date of Inspection: No site visit occurred during the review.
b. Person contacted and contact information: Standford Lummus, P.E. of S&ME 864-680-8445 (cell)
c. Site visit conducted by: Review was performed based on site familiarity and discussion with
contractor (see RO review comments).
d. Inspection Report Printed from BIMS attached: ❑ Yes ® No.
e. Physical Address of Site including zip code: 6869 Freedom Drive, Charlotte, NC 28214
f. Driving Directions if rural site and/or no physical address:
g. Latitude: 35°.280367 Longitude:-80°.939757
Source of Lat./Long & Accuracy (i.e., Google Earth, GPS, etc.): GCS WGS 1984 to nearest Isecond.
II. DESCRIPTION OF INJECTION WELL 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: N/A
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. Quality of drainage at site: ® Good ❑ Adequate ❑ Poor
4. Flooding potential of site: ❑ Low ® Moderate ❑ High
5. 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.

III. E VAL UA TION AND RECOMMENDATIONS
1. Do you foresee any problems with issuance/renewal of this permit? ❑ Yes ® No. If Yes, explain.
2. 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
3. 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
4. Signature of Report Preparer(s): Edward Watson 4/3/2020
Signature of WQROS Regional Supervisor:
Docu Signed by:
A4,4 u' H P44-" 4. 3.2020
F161FB69A2D84A3... Date:
IV. ADDITIONAL REGIONAL STAFF REVIEW COMMENTS/ATTACHMENTS (Optional / If Needed)
There is an existing GW remediation system in place at this facility under NPDES General Permit #
NGC510542. This is a Pump and Treat system that is currently in operation.
A separate AS/VS pilot test under permit WI0300342 has also been performed at this facility. The purpose of
the pilot test was to eventuallyplace the current Pump and Treat system.
This event will involve the injection of fewer than 30 ,gallons of ambient water at low pressure into an existing
MW to determine if bio-degradation of MTBE can be initiated through the injection of microbial populated
GW into a well with limited microbes.
The iniection water for this test will be extracted from onsite well MHR-37T. Testina indicates that well
MHR-37T has a substantial population of active microbes than the receptor well. No enhancement to the
extracted water will be performed prior to the injection of this water into well MHR-lT. The hope is that by
extracting the ambient water from well MHR-37T, bio-degradation of the MTBE constituent may be enhanced.
The dve will provide the abilitv to trace the dilution of the blue color as it travels through the alreadv
established monitor well network.

A review of the well logs presented in the application does not indicate the presence of any onsite fracture
zones that may become an avenue of transport for the injectant water. The receptor well (MHR-1T) is
gpproximately 120 ft. for the onsite creek.
A aerial photo of the injection area is below: