WQ0002284_Staff Report_20231117

!, ed
Environmental
Quality
Date: November 16, 2023
State of North Carolina
Division of Water Resources
Water Quality Regional Operations Section
Staff Report
To: ❑ NPDES Unit N Non-Dischara_e Unit Application No.: WQ0002284
Attn: Zachary Mega Facility name: Outer Banks/Kinnakeet Associates
From: Robert Tankard
Washington Regional Office
Note: This form has been adapted from the non -discharge facility staff report to document the review of both non-
dischar2e and NPDES permit applications and/or renewals. Please complete all sections as thev are applicable.
I. GENERAL AND SITE VISIT INFORMATION
1. Was a site visit conducted? ® Yes or ❑ No
a. Date of site visit: September 31, 2023
b. Site visit conducted by: Robert Tankard and Sarah Toppen
c. Inspection report attached? ❑ Yes or ® No
d. Person contacted: Tonv Konsul and their contact information: 704- 576- 1685 ext.
e. Driving directions: Have not chanted.
II. EXISTING FACILITIES: MODIFICATION AND RENEWAL APPLICATIONS
1. Are there appropriately certified Operators in Charge (ORCs) for the facility? ❑ Yes ❑ No ❑ N/A
ORC: Travis Tucker Certificate #: 1002180 Backup ORC: _ Certificate
2. Are 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: The design is adequate. The present owner has allowed the system to degrade over time
because of cash flow. The Utilities Commission has designated an Emergency Operator, Carolina Water
Services, to operate and repair the wwtp. Carolina Water Services replaced the ORC on September 30, 2023.
Description of existing facilities: a 350,000 gallon per day (GPD) reclaimed water generation system
consisting of. a manually cleaned influent bar screen; a 140,000 gallon aerated flow equalization basin with
two 243 GPM submersible transfer pumps; a 300 cubic feet per minute (CFM) blower; two 23,985 gallon
anoxic tanks with two submersible transfer pumps and two anoxic mixing pumps; a 2.5 gallon per hour
(GPH) singe head adjustable output peristaltic chemical feed pump (50% sugar solution); a flow splitter box;
two 175,000 gallon coarse bubble aeration basins with four submersible recycle pumps and two 3,000 CFM
blowers; two 31,050 gallon clarifiers; a second flow splitter box; a 61,650 gallon aerated sludge holding
basin with two decant transfer pumps; a 348 square foot (ft2) traveling bridge filter (23 cells) rated at 0.70
GPM/ft2; a 1,750 gallon traveling filter backwash return tank with duplex pumps and audible/visual alarmg; a
turbidimeter; a flow meter; a 3.057 million gallon (MG) lined 5-day upset pond; a 35,000 gallon 5-day upset
return pump station with duplex pumps and audible/visual alarms; 265,000 kilowatt (kW) backup generator;
and all associated piping, valves, controls, and appurtenances
Proposed flow: 350,000 gpd
Current permitted flow: 350,000 gpd
FORM: WQROSSR 04-14 Page 1 of 4

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.)
3. Are the site conditions (e.g., soils, topography, depth to water table, etc) maintained appropriately and adequately
assimilating the waste? ❑ Yes or ® No
If no, please explain: The reclaim sprav irrigation system is non functional.
4. 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:
5. Is the residuals management plan adequate? ® Yes or ❑ No
If no, please explain: Residuals are being handled by OBX Atlantic.
6. Are the existing application rates (e.g., hydraulic, nutrient) still acceptable? ® Yes or ❑ No
If no, please explain:
7. Is the existing groundwater monitoring program adequate? ® Yes ❑ No ❑ N/A
If no, explain and recommend any changes to the groundwater monitoring program: Monitoring wells have been
installed around the storage pond.
8. Are there any setback conflicts for existing treatment, storage and disposal sites? ® Yes or ❑ No
If yes, attach a map showing conflict areas. Old permit had a schedule item to provide waivers and easements.
Only area of concern is around the 5 day upset pond.
9. Is the description of the facilities as written in the existing permit correct? ❑ Yes or ❑ No
If no, please explain:
10. Were monitoring wells properly constructed and located? ® Yes ❑ No ❑ N/A
If no, please explain:
11. Are the monitoring well coordinates correct in BIMS? ❑ Yes ® No ❑ N/A
If no, please complete the following (expand table if necessary):
Monitoring Well Latitude Longitude
O I 1/ _ O 1 II
O I 1/ _ O / II
12. 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: Treatment _plant has not met limits for some time.
Needs the Disc Filters to meet reclaimed limits.
Provide input to help the permit writer evaluate any requests for reduced monitoring, if applicable.
13. Are there any permit changes needed in order to address ongoing BIMS violations? ❑ Yes or ® No
If yes, please explain:
14. Check all that apply:
❑ No compliance issues ® Current enforcement action(s) ❑ Currently under JOC
® Notice(s) of violation ❑ 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:
FORM: WQROSSR 04-14 Page 2 of 4

15. Are there any issues related to compliance/enforcement that should be resolved before issuing this permit?
❑ Yes ®No❑N/A
If yes, please explain:
16. Possible toxic impacts to surface waters: N/A
17. 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
I.SCHEDULE L This is a condition that Central Office required. Not sure whether it is still
needed. Has not been provided.
I.SCHEDULE 2. Liquid Chlorine system has been installed. Modification redesigns disinfection
system.
I.SCHEDULE 3. Not needed.
I.SCHEDULE 4.,7..8., 9.,
10. Wells installed.
I.SCHEDULE 5. Not needed. Modfication replaces travelling bridge filter with disc filters.
I.SCHEDULE 6. Not needed. CWS is planning on taking care of this issue after all other needed
repairs have been accomplished.
4. List specific special conditions or compliance schedules recommended to be included in the permit when issued:
Condition
CWS shall redesign and
construct spray irrigation
system to meet permit
conditions by January 1,
2027.
CWS shall provide updated
site map with all permit
items excluding the spray
irrigation system by
January 1, 2025.
Reason
System does not work and will require total redesign and construction.
Site plan needs to be generated.
FORM: WQROSSR 04-14 Page 3 of 4

CWS shall provide spray
irrigation site map by Site plan is needed with new spray zones.
January 1, 2027.
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: P-0x T""
Signature of regional supervisor: ' "�'`"`1 11/17/2023
Date: 11/17/2023
IV. ADDITIONAL REGIONAL STAFF REVIEW ITEMS
This office has reviewed the application for modification and has no concerns with what has been Dronosed.
FORM: WQROSSR 04-14 Page 4 of 4