NC0039578_Staff Report_20190123

State of North Carolina
Division of Water Resources

Water Quality Regional Operations Section
Staff Report

FORM: WQROSSR 04-14 Page 1 of 6

To: NPDES Unit Non-Discharge Unit Application No.: NC0039578
Attn: Nick Coco Facility name: TWSA #1

From: Mikal Willmer
Asheville Regional Office

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
a. Date of site visit: 01/08/2019
b. Site visit conducted by: Mikal Willmer (Bev Price & Tim Heim assisted)
c. Inspection report attached? Yes or No
d. Person contacted: Stan Bryson and their contact information: (828) 586 - 9318 ext.
e. Driving directions: Take I-40W from Swannanoa to exit 27 to US-74/US-19/US-23. Continue US-74 W for
approximately 26 miles. Take exit 81 for US-23 S. Turn left onto N River Rd. before the bridge. Continue for
1.9 miles. TWSA #1 is on the left.
2. Discharge Point(s): (Note the change in lat & long)
Latitude: 35° 21’ 2.178” Longitude: -83° 14’ 20.238”
Latitude: Longitude:
3. Receiving stream or affected surface waters:
Classification: Tuckasegee
River Basin and Subbasin No. Little Tennessee Subbasin 06010203
Describe receiving stream features and pertinent downstream uses: Class C, Tr waters protected for
secondary recreation and trout propagation. This section of the Tuckasegee is on the 303d impaired list for
Fecal.
II. PROPOSED FACILITIES: NEW APPLICATIONS
1. Facility Classification: (Please attach completed rating sheet to be attached to issued permit)
Proposed flow:
Current permitted flow:
2. Are the new treatment facilities adequate for the type of waste and disposal system? Yes or No
If no, explain:
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:
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5. Is the proposed residuals management plan adequate? Yes No N/A
If no, please explain:
6. Are the proposed application rates (e.g., hydraulic, nutrient) acceptable? Yes No N/A
If no, please explain:
7. Are there any setback conflicts for proposed treatment, storage and disposal sites? Yes or No
If yes, attach a map showing conflict areas.
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:
11. Pretreatment Program (POTWs only):

III. EXISTING FACILITIES: MODIFICATION AND RENEWAL APPLICATIONS
1. Are there appropriately certified Operators in Charge (ORCs) for the facility? Yes No N/A
ORC: Stan Bryson Certificate #: 9922 Backup ORC: Ben Henson Certificate #:16864
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:
Description of existing facilities: Facility should be listed as a Class IV WPCS. 3.5 MGD WWTP. Mechanical bar
screen and vortex grit chamber to influent LS. Two 1.7 MGD SBRs. Post EQ basins and chlorine contact
chambers. Liquid Sodium hypochlorite disinfection and liquid Sodium bisulfite dechlorination. Post aeration,
Parshall flume and ultrasonic flow meter. Solids: Two aerobic digesters, belt filter press and sludge dryer.
Proposed flow:
Current permitted flow: 3.5 MGD
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.). Turbulence directly below effluent flow meter, may be recording inaccurate flow readings. See inspection
report for details.
3. Are the site conditions (e.g., soils, topography, depth to water table, etc) maintained appropriately and adequately
assimilating the waste? Yes or No N/A
If no, please explain:
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:
6. Are the existing application rates (e.g., hydraulic, nutrient) still acceptable? Yes or No N/A
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:
8. Are there any setback conflicts for existing treatment, storage and disposal sites? Yes or No
If yes, attach a map showing conflict areas.
9. Is the description of the facilities as written in the existing permit correct? Yes or No
If no, please explain: See additional comments under section V-Draft permit corrections.
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10. Were monitoring wells properly constructed and located? Yes No N/A
If no, please explain:

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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
○ ′ ″ - ○ ′ ″
○ ′ ″ - ○ ′ ″
○ ′ ″ - ○ ′ ″
○ ′ ″ - ○ ′ ″
○ ′ ″ - ○ ′ ″
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: Only one monitoring violation due to laboratory
accident in 2018.
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:
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:
17. Pretreatment Program (POTWs only): N/A

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FORM: WQROSSR 04-14 Page 5 of 6
IV. 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

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 (with noted classification changes)
Deny (Please state reasons: )

6. Signature of report preparer:

Signature of regional supervisor:

Date:

DocuSign Envelope ID: 5C3D1496-859E-4DDB-9DBB-4AF10B7F0BD4
1/29/2019
1/29/2019
FORM: WQROSSR 04-14 Page 6 of 6

V. ADDITIONAL REGIONAL STAFF REVIEW ITEMS
Draft Permit Comments: Facility should be listed as a Grade IV WPCS based on permitted flow of 3.5 MGD. It is
currently listed in BIMS as a Grade IV; however, the fact sheet, Draft Permit and current permit have it listed as
Grade III. Fact Sheet: has the chlorination and dechlorination listed incorrectly: facility has not used gas since the
upgrade in 2012. Liquid sodium hypochlorite is used for disinfection and liquid sodium bisulfite is used for
dechlorination.

DocuSign Envelope ID: 5C3D1496-859E-4DDB-9DBB-4AF10B7F0BD4