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NC0067008_Draft Permit_20230530ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Water Quality Lab and Operations, Inc Attn: Paul Isenhour, President P.O Box 1167 Banner Elk, NC 28604 Dear Permittee, NORTH CAROLINA Environmental Quality 5/30/2023 Subject: Draft NPDES Permit NCO067008 Old Cove Creek WWTF Grade I Biological WPC -'-- Watauga County The Division has reviewed your request to rene,N the subject permit. Please review this draft carefully to ensure a thorough understanding of the information, conditions, and requirements it contains. Thedraft permit indudesthefollowing significant changesfrom theexisting permit: • Section A. (2.) has been updated to require electronic submission of effluent data reports (DM Rs). Federal regulations require electronic submittal of all discharge monitoring • An updated outfal I map has been i ncl uded. Section A. (1.) Monitoring requirements for Flow have been updated to require continuous sampl i ng instead of instantaneous. [15A N CA C 2B.0505] The N PDES standard conditions (Farts 11, 111, and IV) that area part of the permi t are not included i n thi s draft document (cover, map, and Part 1). The conditions are the same as in your current permit except that agency and division names have been updated. The latest version i s avai 1 abl a at https://bit.l y/3k5N FaL and can be vi ewed online or downloaded as a PDF file. With this notification, the Division will solicit public comment on this draft permit by publishing a noticein newspapers having circulation i n the general Watauga County area, per EPA requirements. Please provide your comments, if any, to meat theaddressbelow no later than 30 daysafter receiving this draft permit. Following the 30-day public comment period, the Division will review all pertinent comments and take appropriate action prior to i ssui ng a fi nal permit. If you have questions concerni ng the draft, please contact me at (919)707-3613 or via e-mail at kate.shadwell .nc.gov. Si ncerel y, Catheri ne Shadwel I NPDES Compliance and Expedited Permitting cc: NPDES File [Laserfiche] Winston Salem Regional Office [Laserf iche] North Carol inaDepartment oFEnvironmental Quality I Division dWater Resources 512 North Salisbury Street 1 1617 Mail Servi ce Center I Rai eigh, North Carol i na 27699-1617 919.707.9000 a•It V Permit NCO067008 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM DES 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 Pollutio ontrol Act, as amended, Watauga County Board of C&n issioners is hereby authorized to discharge wastewater from a facility located at the Old Cove Creek WWTP 207 Dale Adams Road Sugar Grove to receiving waters designated a °Cove Creek in the Watauga 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 beconfective This permit and authorization to discharge shall expire at midnight on September 30, 2027. Signed this day Richard E. Rogers Jr. Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 6 Permit NCO067008 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked, and as of this 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 described herein. The Watauga County Board of Commissioners is hereby authorized to: 1. Continue to operate an existing 0.01 MGD extended aeration wastewater treatment system which includes the following components: • Grit Chamber • Aeration Basin • Clarifier • Chlorination • De -chlorination • Return Sludge holding The facility is located at the Old Grove, in Watauga County. Dale Adams Road, near Sugar 2. Discharge from said treatment lently ks via Outfall 001, at the location on the attached map, into Cove Creek, a waterbody classified as Class C [Stream Index: 8-15] within subbasin 04-02-01 [HUC: 060101030302] of the Watauga River Basin. Page 2 of 6 Permit NCO067008 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 this permit 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 eDMR Code Average Maximum Frequency Type Location' Flow (MGD) 50050 0.01 Continuous Recorder Influent or Effluent BOD, 5-day (20°C) C0310 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent NH3 as N C0610 Monitor and Report Monthly Grab Effluent Fecal Coliform (geometric 31616 200/100 mL 400/100 mL 2/Month Grab Effluent mean Total Residual Chlorine 50060 28 pg/L 2/Month Grab Effluent (TRC)2 Temperature (°C) 00010 Monitor and Report Daily Grab Effluent pH 00400 Between < 6.0 or > 9.0 standard 2/Month Grab Effluent units Footnotes: 1 Sample Locations: E = Effluent, I = Influent. U = at least 50 feet above discharge point. D = at least 100 feet below the discharge point. 2. Total Residual Chlorine (TRC) — The Permittee shall monitor and report Total Residual Chlorine only if chlorine is used to disinfect. TRC effluent concentrations reported below 50µg/L shall be deemed compliant with this permit. However, the Permittee shall continue to submit all levels reported by NC -certified test methods (including field certified), even if these concentrations fall below 50µg/L. 3. The Permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR system [see A. (2.)]. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS Page 3 of 6 Permit NCO067008 A. (2.) 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. Signatory Requirements (11.) • Section D. Reporting (2•) • Section D. Records Retention (6.) • Section E. Monitoring Reports (5.) 1. Reporting Requirements [Supersedes SeQ9 The permittee shall report discharge monitoring data Discharge Monitoring Report (eDMR) interr�appli Monitoring results obtained during the previous submitted electronically using eDMR. The eW,, monitoring data and submit DMRs electronicall accessed at: httos:Hdea.nc.2ov/4tbout/di usA using the NC DWR's Electronic shall be summarized for each month and em allows permitted facilities to enter the internet. The eDMR system may be If a permittee is unable to use the eDN4a system due to a demonstrated hardship or due to the facility being physically located in an area whmNess than 10 percent of the households have broadband access, then a tempo&ry 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. Page 4 of 6 Permit NCO067008 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). 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the permittee must identik the initial recipient at the time of each electronic submission. The permittee should use the EP website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NP S- ated facilities means the entity (EPA or the state authorized by EPA to implement the NPDES pro 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 link06 the opriate 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 ble as well. Information on EPA's NPDES Electronic Reporting Rule is found at: htts: ralre'"'ster. ov/documents/2015/10/22/2015- 24954/national- ollutant-dischar e-eliminatio - es -electronic -re ortin -rule Electronic submissions must start blaft6tes d in the "Reporting Requirements" section above. 3. How to Reguest a M44iver from Electronic Re ortin The permittee may seek a tempora ectromc eporting waiver from the Division. To obtain an electronic reporting waiver, a penni ee must first submit an electronic reporting waiver request to the Division. Reque is for temporary dho tronic reporting waivers must be submitted in writing to the Division for written approval a ` ast sixty (60) days prior to the date the facility would be n fu required under this permit to begibmitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon 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://deg.nc. gov/about/divi sions/water-resources/edmr 4. Sianatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) Page 5 of 6 Permit NCO067008 All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (I I .)(a) or by a duly authorized representative of that person as described in Part lI, Section B. (I 1.)(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: h=://deg.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 STAZENTS OF CERTIFICATION WILL BE ACCEPTED: V certify, under penalty of law, that this document and direction or supervision in accordance with a system properly gather and evaluate the information subm' persons who manage the system, or those persons the information submitted is, to the best of my knowle 1 am aware that there are significant penaltie AN ma possibility of fines and imprisonment for kno g v ichments were prepared under my ( to assure that qualified personnel it on my inquiry of the person or nonsible for gathering the information, belief, true, accurate, and complete. I ,lse information, including the 5. Records Retention [Supplements MEtion D. (6.)] The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records ortopies shall b intained 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 122.411. Page 6 of 6 \� ., • `� ��, � . ?mop _ r �IN Outfall 001 , N 1 � Old Cove Creek School WWTP Facility Latitude: 36' 15' 45" N Longitude: 810 47' 05" W Stream Class: C Sub -Basin: 04-02-01 Location Receiving Stream: Cove Creek Drainage Basin: Watauga Stream Index: 8-15 HUC: 060101030302 not to scale NPDES Permit NCO067008 North Watauga County