WQ0036723_Staff Report_20211005

State of North Carolina
Division of Water Resources
Water Quality Regional Operations Section
Environmental Staff Report
Quality
To: ❑ NPDES Unit ® Non -Discharge Unit
Attn: Lauren Plummer
From: Edward Watson
Mooresville Regional Office
Application No.: WQ0036723
Facility name: Town of Mooresville Class A Distribution
Note: This form has been adapted from the non -discharge facility 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
Date of site visit: 09/29/2021
Site visit conducted by: Inspection report attached? ❑ Yes or ® No
a. Person contacted: Jamie Levis and their contact information: (704) 662 - 8341 ext.
e. Driving directions:
2. Discharge Point(s): N/A
Latitude: Longitude:
Latitude: Longitude:
3. Receiving stream or affected surface waters: This is a non -discharge distribution permit. There is no outfall
associated with this permit.
Classification: N/A
River Basin and Subbasin No. N/A
Describe receiving stream features and pertinent downstream uses: N/A
II. EXISTING FACILITIES: MODIFICATION AND RENEWAL APPLICATIONS
1. Are there appropriately certified Operators in Charge (ORCs) for the facility? ® Yes ❑ No ❑ N/A
ORC: Jamie Levis Certification #99965 Backup ORC: Larry Hendren Certificate #1008714
2. Is the design, maintenance and operation of the treatment facilities adequate for the type of waste and disposal
system? ® Yes or ❑ No
If no, please explain:
Description of existing facilities: Town of Mooresville WWTP
Proposed flow: N/A This is a Residual Distribution permit, while no flow is specifically associated with it, the
modification is to allow for greater distribution of residuals from 900 to 1600 DT/yr.
Current permitted flow: N/A
Explain anything observed during the site visit that needs to be addressed by the permit, or that may be important
for the permit writer to know (i.e., equipment condition, function, maintenance, a change in facility ownership,
etc.)
FORM: WQROSSR 04-14 Page 1 of 3

Are the site conditions (e.g., soils, topography, depth to water table, etc.) maintained appropriately and adequately
assimilating the waste? ® Yes or n No
If no, please explain:
3. Has the site changed in any way that may affect the permit (e.g., drainage added, new wells inside the compliance
boundary, new development, etc.)? ❑ Yes or ® No
If yes, please explain:
4. Is the residuals management plan adequate? ® Yes or ❑ No
If no, please explain:
5. Are the existing application rates (e.g., hydraulic, nutrient) still acceptable? Yes or n No
If no, please explain: N/A
6. Is the existing groundwater monitoring program adequate? ❑ Yes ❑ No ® N/A
If no, explain and recommend any changes to the groundwater monitoring program:
7. Are there any setback conflicts for existing treatment, storage and disposal sites? ❑ Yes or ® No
If yes, attach a map showing conflict areas.
8. Is the description of the facilities as written in the existing permit correct? ® Yes or ❑ No
If no, please explain:
9. Were monitoring wells properly constructed and located? ❑ Yes ❑ No ® N/A
If no, please explain:
10. Has a review of all self -monitoring data been conducted (e.g., DMR, NDMR, NDAR, GW)? ® Yes or ❑ No
Please summarize any findings resulting from this review: No compliance issues.
Provide input to help the permit writer evaluate any requests for reduced monitoring, if applicable.
11. Are there any permit changes needed in order to address ongoing BIMS violations? ❑ Yes or ® No
If yes, please explain:
12. Check all that apply:
® No compliance issues ❑ Current enforcement action(s) ❑ Currently under JOC
n Notice(s) of violation n Currently under SOC ❑ Currently under moratorium
Please explain and attach any documents that may help clarify answer/comments (i.e., NOV, NOD, etc.)
If the facility has had compliance problems during the permit cycle, please explain the status. Has the RO been
working with the Permittee? Is a solution underway or in place?
Have all compliance dates/conditions in the existing permit been satisfied? ❑ Yes ❑ No ® N/A
If no, please explain:
13. Are there any issues related to compliance/enforcement that should be resolved before issuing this permit?
nYes ®NonN/A
If yes, please explain:
14. Possible toxic impacts to surface waters: No, not if properly maintained as a non -discharge system.
15. Pretreatment Program (POTWs only): N/A
FORM: WQROSSR 04-14 Page 2 of 3

REGIONAL OFFICE RECOMMENDATIONS
1. Do you foresee any problems with issuance/renewal of this permit? ❑ Yes or ® No
If yes, please explain:
2. List specific special conditions or compliance schedules recommended to be included in the permit when issued:
Condition
Reason
1
Change the distribution volume from 900 DT/Yr. to 1600 DT/Yr.
3. 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: )
4. Signature of report preparer: Edward Watson, Hydrogeologist 5 October 2021.
Signature of regional supervisor:
10.5.21
Date:
,-DocuSigned by:
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ADDITIONAL REGIONAL STAFF REVIEW ITEMS
The permit modification will include an increase of the amount permitted for distribution from 900 DT/Yr. to
1600 DT/Yr. There is not increase in inflow related to the increase. However, the facility has the current
capacity to generated 1,100 DT/Yr. and the demand for the residual product is more than the facility can produce.
The additional 500 DT/Yr. is for expected future growth. The Town of Mooresville is expecting to add another
dryer once capital funds have been approved.
The increased volume does not increase the residuals sampling frequency of the facility.
FORM: WQROSSR 04-14 Page 3 of 3