WQ0035809_Staff Report_20220809

DocuSign Envelope ID: 972155CO-D1D2-4088-9F92-1D1615D7FCA6
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: Erick Saunders Facility name: Stateside WWTF
From: Helen Perez
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 pplicable.
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. Person contacted: Jeff Jarman and their contact information: (_)
e. Driving directions:
2. Discharge Point(s):
Latitude: Longitude:
Latitude: Longitude:
3. Receiving stream or affected surface waters:
Classification:
River Basin and Subbasin No.
Describe receiving stream features and pertinent downstream uses:
II. PROPOSED FACILITIES: NEW APPLICATIONS
- ext.
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: 972155CO-D1D2-4088-9F92-1D11315D7FCA6
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: Jeff Jarman Certificate #: 13491 Backup ORC: Benjamin Aragona 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:
construction and operation of a 100,000 GPD Phase I wastewater treatment facility consisting of. a
magnetic flow meter; a 2-millimeter (mm), 0.35 horsepower (hp), 1,300 gallon per minute (GPM) screen;
a 28,951-gallon flow equalization tank with two 1.75 hp 120 GPM pumps (one duty / one spare), and a 40
cubic feet per minute (CFM) variable frequency drive (VFD) blower splitting duty with the sludge holding
tank; a 13,465 gallon Anoxic I tank with a 2.7 hp mixer and served by caustic, alum and micro c chemical
feeds; a 13,465 gallon Oxic tank with two internal recycle pumps (one duty / one spare) and served by a
179 CFM VFD blower providing fine bubble aeration; a 13,465 gallon Anoxic II tank with a 2.7 hp mixer
and two 410 GPM sludge recirculation pumps (one duty / one spare); a 13,465-gallon membrane tank with
16 A3 -USA U70 membranes (4 membranes stacked 4 high) at 7.7 gallon per day per square foot (GPD/ft2)
average flux rate and 86.8 GPM permeate rate served by a 28.5 CFM blower providing fine bubble air; a
28,951-gallon sludge holding tank with coarse bubble aeration at 30 CFM and served by a 30 CFM blower
splitting duty with the flow equalization tank; a 1,080-gallon clean in place (CIP) tank; a seagoing container
adjacent to the concrete tankage that contains the permeate pumps, blowers, electrical controls, SCADA
system, sludge waste pump, chlorine disinfection system, composite sampler, flow measurement
instrumentation, two ultraviolet (UV) disinfection units, a turbidimeter, and high -rate infiltration basin
distribution valving; a 175 kVA backup generator; and all associated piping, valves, controls, and
appurtenances; the
construction and operation of a 100,000 GPD high -rate infiltration system consisting of. two high -rate
infiltration basins (Basins # 1 and # 2) with a cumulative area of 0.92 acres at a permitted loading rate of
2.47 gallons per day per square foot (GPD/ft2); and all associated piping, valves, controls and
appurtenances; the
construction and operation of a 400,000 GPD high -rate infiltration system (which shall be contingent upon
Division approval of the Permittee' s compliance with Condition 1.1.) consisting of: three high -rate
infiltration basins (Basins #3, # 4, and #5) with a cumulative area of 1.77 acres and a permitted loading rate of
5.16 GPD/ft2; and all associated piping, valves, controls, and appurtenances; and the
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DocuSign Envelope ID: 972155C0-D1D2-4088-9F92-1D1B15D7FCA6
construction and operation of a groundwater lowering system consisting of approximately 4,726 linear feet
(LF) of 8-inch perforated pipe to remove an average of 413,000 GPD of groundwater onto rip rap aprons
prior to entering wetlands adjacent to Margaret Branch; and all associated piping, valves controls and
appurtenances
Proposed flow:
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:
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:
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 highlighted areas on current description above to be removed.
The plant and the high -rate infiltration basins #3, #'hand #5 are constructed ancycertified for operation. There is
no caustic feed, a 1,080-gallon clean in place (CIP) tank or a turbidimeter (turbidity monitoring is not required).
10. Were monitoring wells properly constructed and located? ® Yes ❑ No ❑ N/A
If no, please explain:
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DocuSign Envelope ID: 972155CO-D1D2-4088-9F92-1D1B15D7FCA6
11. Are the monitoring well coordinates correct in BIMS? ❑ Yes ® No ❑ N/A See #12 below.
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
There are no GW-59 records (see summary below
Provide input to help the permit writer evaluate any requests for reduced monitoring, if applicable.
�Are there any permit changes needed in order to address ongoing BIMS violations? ® Yes or ❑ No
If yes, please explain: The facility has UV disinfection system. Chlorine monitoring should be remove
uent is combined and flows out onto the
to entering wetlands adiacent to Margaret Branch.
The GW-1 s for MW #4, #5, and #6 were electronically submitted, but the monitoring wells were never made
"active" in BIMS. The MWs have been sampled as required, but the data has not been entered into BIMS due to
the "proposed" status in BIMS. The Lat and Long for these wells need to be provided by the Permittee.
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.) See #12.
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: 972155CO-D1D2-4088-9F92-1D1B15D7FCA6
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
A site map
To satisfy Section I.9 of the permit.
Lat and Long for MWs #4,
5,6
Needs to be entered into BIMS and activated for monitoring.
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
❑ De, yLPlga d gtate reasons: )
6. Signature of report preparers I 4+e2en t'
Signature of regional supervisor: 1o645B4a39694BE...
Date: 8/26/2022
l o4, l 1no.cr,*
—7F141 E73B6F3456...
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DocuSign Envelope ID: 972155C0-D1D2-4088-9F92-1D1B15D7FCA6
V. ADDITIONAL REGIONAL STAFF REVIEW ITEMS
This staff report is being prepared for the renewal of the Stateside WWTF, W00035809. This facility start-up was in
the fall of 2019. Currently, Infiltration Basin #3 is certified for 108,900 gpd, #4 is certified for 75,000 gpd and #5 is
certified for 50,000 gpd. Infiltration basins #1 and #2 have not been constructed/certified yet. The GW-1 forms for
MW-4, MW-5 and MW-6 were electronically submitted but were never entered in BIMS as "active". The wells have
been sampled as required, but there has been no data entered in BIMS due to the "proposed" status. Lat and Long for
each well will need to be requested from the Permittee.
A review of files for Section I. Schedules 1-11 required in the permit:
1. Setback waiver for Basins #3, #4 and #5 received
2. Operation and Maintenance Plan received
3. Residuals Management Plan received
4. Facility Certification received
5. Basins #3, #4 and #5 Certifications received
6. Completed
7. Completed
8. MW-4, MW-5 and MW-6 installed, GW-1 forms electronically submitted.
9. No site map found
10. Completed
11. Completed
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