NC0089842_Staff Report_20190116

State of North Carolina
Division of Water Resources
Water Quality Regional Operations Section
Environmental Staff Report
Quality
To: ® NPDES Unit ❑ Non -Discharge Unit Application No.: (NC0089842)
Attn: (Emily DelDuco in Raleigh) Facility name: Charlotte Theatre
From: Edward Watson
Mooresville Regional Office
Note: This form has been adapted from the non -discharge fg acili , staff report to document the review of both non -
discharge and NPDES permit applications and/or renewals. Please complete all sections as they are applicable.
I. GENERAL AND SITE VISIT INFORMATION
1. Was a site visit conducted? ® Yes or ❑ No
a. Date of site visit: 12/20/2018
b. Site visit conducted by: Edward Watson and Maria Schutte
c. Inspection report attached? ❑ Yes or ® No
d. Person contacted: Richard Grubbs and their contact information: (704) 973 - 4503 ext.
e. Driving directions: Travel south on I-77 for approx. 20 miles and take exit 11 NC-16/I-277/ Brookshire Fnu. Turn
left toward downtown Charlotte and merge onto NC-16S exit 11-A. Continue on NC-16 S for 1.1 miles and take
exit 3B toward Church St/Tryon St. Merge onto w 1 lth St and take the first right onto N. Tryon St. 230 N. Try
is on the left just past E 6th St
2. Discharge Point:
Latitude: 3 5.23 3 595 Longitude:-80.846685
Latitude: Longitude:
3. Receiving stream or affected surface waters: Irwin Creek
Classification: C
River Basin and Subbasin No. 11.137.1
Describe receiving stream features and pertinent downstream uses: Impaired with metals, Lead, Copper and
Zinc.
II. PROPOSED FACILITIES: NEW APPLICATIONS
1. Facility Classification: PC-1 is anticipated as this is groundwater treatment
Proposed flow: 28,800 gpd maximum flow.
Current permitted flow: N/A. This is a new permit.
2. Are the new treatment facilities adequate for the type of waste and disposal system? ® Yes or ❑ No
If no, explain: The proposed treatment appears to be adequate for the type of contaminants expected.
3. Are site conditions (soils, depth to water table, etc.) consistent with the submitted reports? ® Yes ❑ No ❑ N/A
If no, please explain:
4. Do the plans and site map represent the actual site (property lines, wells, etc.)? ® Yes ❑ No ❑ N/A
If no, please explain:
FORM: WQROSSR 04-14 Pagel of 3

5. Is the proposed residuals management plan adequate? ❑ Yes ❑ No ❑ N/A
If no, please explain: This is not a Non -Discharge permit application.
6. Are the proposed application rates (e.g., hydraulic, nutrient) acceptable? ❑ Yes ❑ No ® N/A
If no, please explain: This is not a Non -Discharge permit application.
7. Are there any setback conflicts for proposed treatment, storage and disposal sites? ❑ Yes or ❑ No
If yes, attach a map showing conflict areas. N/A.
8. Is the proposed or existing groundwater monitoring program adequate? ❑ Yes ❑ No ® N/A
If no, explain and recommend any changes to the groundwater monitoring program:
9. For residuals, will seasonal or other restrictions be required? ❑ Yes ❑ No ® N/A
If yes, attach list of sites with restrictions (Certification B)
Describe the residuals handling and utilization scheme:
10. Possible toxic impacts to surface waters: Only in the event of a treatment system failure.
11. Pretreatment Program (POTWs only): N/A
III. REGIONAL OFFICE RECOMMENDATIONS
1. Do you foresee any problems with issuance/renewal of this permit? ❑ Yes or ® No
If yes, please explain:
2. List any items that you would like the NPDES Unit or Non -Discharge Unit Central Office to obtain through an
additional information request:
Item Reason
3. List specific permit conditions recommended to be removed from the permit when issued:
Condition Reason
4. List specific special conditions or compliance schedules recommended to be included in the permit when issued:
Condition Reason
1 Chronic Toxicity Monitoring to be performed during periods of batch discharge.
FORM: WQROSSR 04-14 Page 2 of 3

5. Recommendation: ❑ Hold, pending receipt and review of additional information by regional office
❑ Hold, pending review of draft permit by regional office
❑ Issue upon receipt of needed additional information
® Issue
❑ Deny (Please state reasons: )
6. Signature of report preparer: Edward Watson 1/16/2019
Signature of regional supervisor:
Date: 1/16/19
—DocuSigned by:
—F161 FB69A2D84A3...
ADDITIONAL REGIONAL STAFF REVIEW ITEMS
There is an existing 2-inch diameter PVC pipe that enters the storm drain from a dis-used irrigation vault that should be capped to
prevent unnecessary discharge from entering into the storm drain.
On December 20, 2018 MRO staff performed a technical assistance site visit for permit application NC0089842, Carolina Theatre.
MRO staff met with ECS Limited Staff, Joe Nestor and Chris Orrell, and Mr. Richard Grubbs of Carolina Theatre.
The primary purpose of this permit is to cover a temporary dewatering system to be used during construction where the groundwater is
impacted by chlorinated solvents. The City of Charlotte/Charlotte Water does not allow the discharge of groundwater remediation
system effluent into their collection system and WWTPs. The proposed system is designed to be operated sporadically with discharge
to an established storm drain outfall. Treatment of the water appears to meet requirements to reduce the pollutants, though the most
recent data does not note exceedances of those constituents. The storm drain outfall leads to an impaired stream (Irwin Creek).
Due to the irregularly occurring flow, it is recommended that chronic toxicity sampling be tied to periods when discharge actually
occurs and that the permittee provide additional information about the quantity and frequency of the flow when the operation is put in
place.
FORM: WQROSSR 04-14 Page 3 of 3