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Home My WebLink AboutNC0057703_Draft Permit_20210927 ROY COOPER Governor • � f ELIZABETH S. BISER Secretary C S.DANIEL SMITH 111°`t:Z:Sr' Director NORTH CAROLINA Environmental Quality September 27,2021 Aqua North Carolina,Inc. Attn:Amanda Berger 202 Mackenan Court Cary,NC 275 1 1-6447 Subject: Draft NPDES Permit NC0057703 The Cape WWTP New Hanover County Grade II Biological WPCS Dear Permittee: The Division has reviewed your request to renew the subject permit. Please review this draft carefully to ensure your thorough understanding of the information,conditions,and requirements it contains. The draft permit includes the following significant changes from the existing permit: • Section A.(6.)has been updated to require electronic submission of effluent data reports(DMRs). Federal regulations require electronic submittal of all discharge monitoring. • An updated outfall map has been included. With this notification,the Division will solicit public comment on this draft permit by publishing a notice in newspapers having circulation in the general New Hanover County area,per EPA requirements.Please provide your comments,if any,to me no later than 30 days after receiving this draft permit. Y Following the 30-day public comment period,the Division will review all pertinent comments and take appropriate action prior to issuing a final permit.If you have any questions concerning this permit,please contact Emily Phillips at emily.phillips@a,ncdenr.gov. Sincerely, ,-DocuSlgned by: f1pWs '-8IEIE53C81O4 O411... Emily Phillips Compliance and Expedited Permitting Unit cc: NPDES files ec: WRO State of North Carolina I Environmental Quality I Water Resources 1617 Mail Service Center I Raleigh,NC 27699-1617 919-807-6300 919-807-6389 FAX https://deq.nc.go v/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-pemuts Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Aqua North Carolina, Inc. is hereby authorized to discharge wastewater from a facility located at The Cape WWTP 900 Cape Boulevard Wilmington New Hanover County to receiving waters designated as the Cape Fear River in the Cape Fear River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof. This permit shall become effective This permit and authorization to discharge shall expire at midnight on December 31,2026. Signed this day S. Daniel Smith Director, Division of Water Resources Page 1 of 11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] By Authority of the Environmental Management Commission SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. Aqua North Carolina, Inc. is hereby authorized to: 1. Continue to operate an existing 0.260 MGD wastewater treatment system that includes the following components: • 2—30,000 gallon package plants • 2— 100,000 gallon package pl. _y • Influent pump station • Bar screen • Flow splitting device • 56,000 gallon sludge digester/storage tank • Chlorination(Liquid) • Chlorine contact chamber • Dechlorination (Liquid) • Recording flow meter • Effluent pump station • Eight-inch force main(approximately 7750 feet) • 275 kW standby generator with manual transfer switch • 100,000 surge tank and headworks The facility is located at 900 The Cape Boulevard, Wilmington in New Hanover County. 2. After receiving an Authorization to Construct permit from the Division, expand the wastewater treatment plant capacity to 0.40 MGD, and 3. After receiving an Authorization to Construct permit from the Division, expand the wastewater treatment plant capacity to up to 0.75 MGD, and Page 2of11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G .0302] 4. Discharge from said treatment works at the location specified on the attached map into the Cape Fear River, currently classified SC (PNA) waters in sub-basin 03-06-17 of the Cape Fear River Basin. Page 3of11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G .0302] Part I. A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade II Biological Water Pollution Control System [15A NCAC 08G .0302] During the period beginning on the effective date of the permit and lasting until expansion above 0.260 MGD or expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Daily Measurement Sample Sample Parameter Code Average Maximum Frequency Type Location Flow 0.260 MGD Continuous Recording Influent or Effluent 50050 BOD, 5-day(20°C) 30.0 mg/L 45.0 mg/L Weekly Composite Effluent C0310 Total Suspended Solids(TSS) 30.0 mg/L 45.0 mg/L Weekly Composite Effluent C0530 NH3 as N 2/Month Composite Effluent C0610 Enterococci (geometric mean) ) 35/100 ml 276/100 ml Weekly Grab Effluent 61211 Total Residual Chlorine 2(TRC) 13 pglL 2/Week Grab Effluent 50060 Temperature(°C) 00010 Weekly Grab Effluent Total Nitrogen (NO2+NO3+TKN) C0600 Quarterly Composite Effluent Total Phosphorus C0665 Quarterly Composite Effluent pH Not<6.5 nor>8.5 00400 Standard Units Weekly Grab Effluent Footnote: 1. Permittee shall submit discharge monitoring reports electronically using the Division's eDMR application system [see A. (6)]. 2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in complianc with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory(including field certified),even if these values fall below 50 µg/L. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS Page 4of11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G .0302] A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade II Biological Water Pollution Control System [15A NCAC 08G .0302] During the period beginning after approval is granted for plant expansion above 0.260 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored ' by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Daily Measurement Sample Sample Parameter Code Average Maximum Frequency Type Location Flow 50050 0.40 MGD Continuous Recording Influent or Effluent BOD, 5-day(20°C)—Summer* 5.0 mg/L 7.5 mg/L Weekly Composite Effluent C0310 BOD, 5-day(20°C)—Winter* 10.0 mg/L 15.0 mg/L Weekly Composite Effluent C0310 Total Suspended Solids(TSS) 10 mg/L 15 mg/L Weekly Composite Effluent C0530 NH3 as N—Summer* 2.0 mg/L 10.0 mg/L 2/Month Composite Effluent C0610 NH3 as N—Winter* 4.0 mg/L 20.0 mg/L 2/Month Composite Effluent C0610 Enterococci(geometric mean) 35/100 ml 276/100 ml Weekly Grab Effluent 61211 Total Residual Chlorine 2(TRC) 13 pg/L 2/Week Grab Effluent 50060 00300 Dissolved Oxygen Daily average>6.0 mg/L Weekly Grab Effluent Temperature(°C) Weekly Grab Effluent 00010 Total Nitrogen(NO2+NO3+TKN) C0600 Quarterly Composite Effluent Total Phosphorus Quarterly Composite Effluent C0665 pH Not<6.5 nor>8.5 00400 Standard Units Weekly Grab Effluent *Summer.. April 1 —October 31 *Winter.: November 1 —March 31 Footnotes: 1. Permittee shall submit discharge monitoring reports electronically using the Division's eDMR application system[see A. (6)]. 2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified),even if these values fall below 50 µg/L. Page 5 of 11 III Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G .0302] THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade II Biological Water Pollution Control System [15A NCAC 08G .0302] During the period beginning upon expansion above 0.400 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored ' by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Daily Measurement Sample Sample Parameter Code Average Maximum Frequency Type Location Flow 0.750 MGD Continuous Recording Influent or Effluent 50050 BOD, 5-day(20°C)—Summer* 5.0 mg/L 7.5 mg/L 3/week Composite Effluent C0310 BOD, 5-day(20°C)— Winter* 10.0 mg/L 15.0 mg/L 3/week Composite Effluent C0310 Total Suspended Solids 10.0 mg/L 15.0 mg/L 3/week Composite Effluent C0530 NH3 as N—Summer* 2.0 mg/L 10.0 mg/L 3/week Composite Effluent C0610 NH3 as N— Winter* 4.0 mg/L 20.0 mg/L 3/week Composite Effluent C0610 9 9 p Enterococci (geometric mean) 35/100 ml 276/100 ml 3/week Grab Effluent 61211 Total Residual Chlorine 2 13 pg/L 3/week Grab Effluent 50060 Dissolved Oxygen Daily average>6.0 mg/L 3/week Grab Effluent 00300 Temperature(°C) 00010 Daily Grab Effluent Total Nitrogen (NO2+NO3+TKN) C0600 Quarterly Composite Effluent Total Phosphorus C0665 Quarterly Composite Effluent pH Not<6.5 nor>8.5 00400 Standard Units 3/week Grab Effluent *Summer: April 1 —October 31 *Winter: November 1 —March 31 Footnotes: 1. Permittee shall submit discharge monitoring reports electronically using the Division's eDMR application system [see A. (6)]• Page 6 of 11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] 2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified),even if these values fall below 50 µg/L. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS NN4‘000, Page 7 of 11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] A. (4.) ENGINEERING ALTERNATIVES ANALYSIS REQUIREMENT [15A NCAC 02H .0105] Prior to expansion stages, the permittee shall submit a detailed analysis of all available means to dispose of this facility's wastewater. This Engineering Alternatives Analysis (EAA) shall be prepared in compliance with the Division's guidance document for EAAs. If no EAA is submitted, the Division may reopen and modify this permit to increase monitoring frequencies or change the effluent limits as necessary to protect the receiving stream. A. (5.) PERMIT RE-OPENER: SUPPLEMENTARY NUTRIENT MONITORING/TMDL IMPLEMENTATION [G.S. 143-215.1(b)] Pursuant to N.C. General Statutes Section 143-215.1 and the implementing rules found in the North Carolina Administrative Code at 15A NCAC 2H.0112(b)(1)and 2H.0114(a)and Part II sections B-12 and B-13 of this permit,the Director of DWQ may reopen this permit to require supplemental nutrient monitoring of the discharge. The purpose of the additional monitoring will be to support water quality modeling efforts within the Cape Fear River Basin and shall be consistent with a monitoring plan developed jointly by the Division and affected stakeholders. In addition,the results of water quality modeling may require that limits for total nitrogen and total phosphorus be imposed in this permit upon renewal. The Division may,upon written notification to the Permittee,re-open this Permit in order to incorporate or modify effluent limitations, monitoring and reporting requirements, and other permit conditions when it deems such action is necessary to implement TMDL(s)approved by the USEPA. A. (6.) ELECTRONIC REPORTING- DISCHARGE MONITORING REPORTS [G.S. 143-215.1 (b)] Federal regulations require electronic submittal of all discharge monitoring reports(DMRs)and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21,2015. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit (Standard Conditions for NPDES Permits): Section B. (11.) Signatory Requirements Section D. (2.) Reporting Section D. (6.) Records Retention Section E. (5.) Monitoring Reports Reporting Requirements[Supersedes Section D. (2.)and Section E. (5.)(all The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report(eDMR)internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit Page 8of11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] DMRs electronically using the intemet. The eDMR system may be accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr. If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access,then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms(MR 1, 1.1,2,3)or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the following address: NC DEQ/Division of Water Resources/Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh,North Carolina 27699-1617 See"How to Request a Waiver from Electronic Reporting" section below. Monitoring results obtained during the previous month(s) shall be summarized for each month and reported via the eDMR system no later than the last calendar day of the month following the completed reporting period. Regardless of the submission method,the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility,on the last day of the month following the commencement of discharge. Starting on December 21,2025,the permittee must electronically report the following compliance monitoring data and reports,when applicable: Sewer Overflow/Bypass Event Reports; Pretreatment Program Annual Reports; and Clean Water Act(CWA) Section 316(b)Annual Reports. The permittee may seek an electronic reporting waiver from the Division(see"How to Request a Waiver from Electronic Reporting"section below). Electronic Submissions In accordance with 40 CFR 122.41(1)(9),the permittee must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity(EPA or the state authorized by EPA to implement the NPDES program)that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at: https://www.federalregister.gov/documents/20 1 5/1 0/22/20 1 5-24954/national-pollutant-discharge-elimination- system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the"Reporting Requirements"section above. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver,a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty(60)days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon Page 9 of 11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G.0302] expire. At such time,monitoring data and reports shall be submitted electronically to the Division unless the permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr Signatory Requirements [Supplements Section B.(11.)(b)and Supersedes Section B. (11.)(d)j All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (11.)(a)or by a duly authorized representative of that person as described in Part II, Section B. (11.)(b). A person,and not a position,must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions,the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account,please visit the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification[40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." 1. Records Retention [Supplements Section D.(6.)1 The permittee shall retain records of all Discharge Monitoring Reports,including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41]. Page 10 of 11 Permit NC0057703 Grade II Biological Water Pollution Control System[15A NCAC 08G .0302] Page 11 of 11 ✓ �� i 'i, C'a ' WILUAA'I RD 011. ‘ L.„1 j a J - ( 1 ad i --,.--ipl ' , 1 coif lopr ,,,, . o f aai J L 9Y - �+w I. 4IPP-i „._.._ ARlhq �'� �� /f `aI 1 : ., .. cx_ .tist-- , c.,44_, RD\ ,st ,,,„.,----\. .-- G _I(' v) i - cot ! �� - ,'�� t �tr pn�NT no r ! Intra coastal ( !III1 0-`- 1-1 It f7 A l'_ 1 -Y.Yater))uy _... 10 t di!" ,-.1• ,:..I'L, , , ,< • rook* _ _ Outfall 001 c. '�, - ' S �' i T -! s �`C �` _ r - CHIMNEY LN - `lo, 1 . - I - trill HILL VALLEY ALN ;,w f -_-L. Jam'° j f f tt' '�` -fir MCQU !'aN DR __ ,e .1 RIVE J A' / ____/-_,,,..,`"---- 0- �l -I,fi+ R +r * • ---r' Hli ID, e0 ;tom - R tar- � , RE ND ' SALIENT pr Wiii �` # .., . _ /IMR — {-� , ' : ACRES DR - Williill 1-'"-j I Carolina - -._"� + "' - RADNc RD J� , - Beach Inlet Y -It 10 7 VINCENT DR• W \, .- ifir_, e cot op /Hi .11111W1 #. ..... ...m., - ,,, , : Ilk i ift (3,,..,- /i — tL �p' 6 se,C�,, jillr . .G/sEBOTT Doctor of ? l Point "O` �► '" (-Sea ' _ Myrtle * . TA�RPO►1,DR drove -vr I'" �; ' j� r e r / Sound 4 r ' �`' ,\ ;Nye b i itiro . L..<-4,J -to , -,I" ‘sitifter„ i -, ,",Y f`,t ,,,,,. 4 - Dsztti 4 lll R copFREEMAN. t_\,:iiiy: c ) ''',' i).. -- .2 j*_ 1 ti , Call 1 G - JFARLOW Ly, ti 1v_ Latitude: 34°04'34" • Longitude: 77°55'36" NC0057703 i Facility J Subbasin: 03-06-17 The Cape WWTP Location Stream Class: SC Receiving Stream: Cape Fear River North New Hanover County