WQ0035809_Staff Report_20240530

DocuSign Envelope ID: AC44CAED-A248-4033-AB8B-CAE5BC9E9D9F
State of North Carolina
®r- Division of Water Resources
Water Quality Regional Operations Section
Environmental Staff Report
Quality
To: ❑ NPDES Unit ® Non -Discharge Unit Application No.: WQ0035809
Attn: Zachary Mega Facility name: Stateside WWTF
From: Tyler Benson / Geoff Kegley
Wilmington 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: Last inspection conducted on 3/10/21.
b. Site visit conducted by: Inspection done by Helen Perez
c. Inspection report attached? ❑ Yes or ® No Uploaded to Laserfiche
d—Der-sen eeft4 keted: and their- ee taet i rfvi:fnatiea. lift
e Driving direetions:
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:
5. Is the proposed residuals management plan adequate? ❑ Yes ❑ No ❑ N/A
If no, please explain:
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DocuSign Envelope ID: AC44CAED-A248-4033-AB8B-CAE5BC9E9D9F
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: eff Jarman Certificate #:_ Backup ORC: Benjamin Aragon a Certificate #:990429
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: As described in the permit except for the chlorine disinfection system. Only
UV is being used per previous inspection as there is no chlorine disinfection system.
Proposed flow: 150,000 gpd
Current permitted flow: 100,000 gpd
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: According to the operator, the infiltration basins may not be assimilating the waste at
the capacity as designed. Basins should be cleaned as required by permit condition III.15. and then
evaluated by a licensed engineer or hydrogeologist to confirm the existing basins can assimilate the
proposed increase in flow. Two additional basins are authorized for construction, if needed.
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
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: Groundwater monitoring
reports have not been submitted/received since June of 2023.
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: The chlorine disinfection system is not present per previous inspection.
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DocuSign Envelope ID: AC44CAED-A248-4033-AB8B-CAE5BC9E9D9F
10. Were monitoring wells properly constructed and located? ® Yes ❑ No ❑ N/A
If no, please explain:
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DocuSign Envelope ID: AC44CAED-A248-4033-AB8B-CAE5BC9E9D9F
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 l 11
O I //
o / //
O I It
o l lI
O I /I
o l lI
o I it
o l lI
o I 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: Violations since start-up in the fall of 2019:
12/19 NOV for monthly
7/20 NOD for monthly TN
10/20 NOV for monthly TP
2/21 NOD for monthly
5/22 NOV for monthly TN
6/23 NOV for monthly TN
8/23 NOV for monthly TN and TP
11/23 NOV for monthly
There are no GW-59 records. Per the ORC from last inspection, groundwater samples have been taken but are
havina issues being submitted.
Provide input to help the permit writer evaluate any requests for reduced monitoring, if applicable.
jAre there any permit changes needed in order to address ongoing BIMS violations? ❑ Yes or ® No
IIf yes, please explain:
13. Check all that apply:
❑ No compliance issues
® Notice(s) of violation
❑ Current enforcement action(s) ❑ Currently under JOC
❑ 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? N/A
Have all compliance dates/conditions in the existing permit been satisfied? ❑ Yes ❑ No ® N/A
If no, please explain:
14. Are there any issues related to compliance/enforcement that should be resolved before issuing this permit?
❑ Yes ®No❑N/A
If yes, please explain:
15. Possible toxic impacts to surface waters: N/A
16. Pretreatment Program (POTWs only): N/A
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DocuSign Envelope ID: AC44CAED-A248-4033-AB8B-CAE5BC9E9D9F
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
Infiltration Basin Cleaning
The infiltration basins may not be assimilating waste at the capacity as
Records
designed. These basins should be cleaned per Condition III.15 and may be the
issue.
There have been noted issues of submitting and receiving these monitoring
Groundwater Monitoring
reports. It is noted on the previous inspection that these were submitted and
Records
may not have been entered into BIMS. February and June of 2023 are the only
ones showing in BIMS.
3. List specific permit conditions recommended to be removed from the permit when issued:
Condition
Reason
Monitoring of Total
Chlorine Residual
Attachment A
Facility has UV disinfection.
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
ocuSigned by: Docu Signed by:
❑ Deny (Please state reasons: ) F��b_r bLAA S6V1, P` # . _j'
6. Signature of report preparer:
Signature of regional supervisor:
Date: 5/30/2024
DocuSigned by: Etavti ((a �� 6,
A2BSE126A9394A6...
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DocuSign Envelope ID: AC44CAED-A248-4033-AB8B-CAE5BC9E9D9F
V. ADDITIONAL REGIONAL STAFF REVIEW ITEMS
This staff report is being prepared for the modification of the Stateside WWTF, W00035809. The modification
proposes an increase to the 100,000 gallons per day operation capacity to 150,000 gallons per day. New structures
will include two membrane stacks (8 modules), placement and capacity increase of 2 permeate pumps, replacement
and capacity increase of dual UV disinfection system, increasingthe he speed of aeration blowers, and an 18,000 ag llon
steel equalization tank with duplex pumps. Currently. fly has three -active infiltration basins totaling a discharge
rate of 233,704 gallons per day. The infiltration basins include Basin #3, #4, and #5. Infiltration basins #1 and #2 have
not been constructed/certified vet. The ground water monitoring_ reports are still having issues being submitted and or
received into BIMS. The last groundwater monitoring report submitted was in June, 2023. Therefore, it is
recommended to obtain those reports to determine compliance history prior to authorizing. the requested expansion.
FORM: WQROSSR 04-14 Page 6 of 6