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HomeMy WebLinkAboutNC0046426_Draft Permit_20230725 ROY COOPER Governor • ELIZABETH S.BISER Secretory RICHARD E.ROGERS,JR. NORTH CAROLINA Director Environmental Quality 7/25/2023 Wilkes County Schools Attn: Thomas J. Spicer,ORC 613 Cherry St North Wilkesboro,NC 28659 Subject: Draft NPDES Permit NC0046426 Traphill Elementary School WWTP Grade I Biological WPCS Wilkes County Dear Permittee, The Division has reviewed your request to renew the subject permit. Please review this draft carefully to ensure a thorough understanding of the information,conditions,and requirements it contains. The draft permit includes the following significant changes from the existing permit: • Section A. (4.) 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. • Section A.(3.)has been added regarding temporary means of disinfection. The NPDES standard conditions (Parts II, III,and IV) that are a part of the permit are not included in this draft document(cover, map,and Part I). The conditions are the same as in your current permit except that agency and division names have been updated. The latest version is available at https://bit.ly/3k5NFaL and can be viewed online or downloaded as a PDF file. With this notification, the Division will solicit public comment on this draft permit by publishing a notice in newspapers having circulation in the general Wilkes County area,per EPA requirements. Please provide your comments,if any,to me at the address below no later than 30 days after receiving this draft permit. 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 questions concerning the draft,please contact me at (919)707-3613 or via e-mail at kate.shadwell@deq.nc.gov. Sincerely, Catherine Shadwell NPDES Compliance and Expedited Permitting cc: NPDES File[Laserfiche] Winston Salem Regional Office[Laserfiche] D E Q North Carolina Depamnent of Environmental Quality I Division . Water Resources 512 North Salisbury Street 11617 Mail Service Center I Raleigh.North Carolina 27699-1617 919.707.9000 Permit NC0046426 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 Contr ct, as amended, Wilkes County S are hereby authorized to discharge wastewater from a facility located at the Traphill Elementary School WWTP 9794 Traphill Rd Traphill Wilkes County to receiving waters designated as fig Little Sandy Creek in the Yadkin-Pee Dee River Basin in accordance with effluent limitations'4monitoring 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 September 30, 2028. Signed this day Richard E. Rogers Jr. Director,Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 7 Permit NC0046426 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. Wilkes County Schools are hereby authorized to: 1. Continue to operate an existing 0.004 MGD wastewater treatment .cility that includes the following components: • Dual(2) Septic tanks • Dosing tank with two siphons (1 backup) • Two (2) surface sand filters • Ultraviolet disinfection system • Pump station and force main • Blower The facility is located at the Trap '." nt. chool WWTP, 9794 Traphill Rd, Traphill in Wilkes County. 2. Discharge from said treat s via Outfall 001, at the location specified on the attached map, into Little Sandy Creek, aterbody currently classified C [Stream Index: 12-46-4-10] within subbasin 03-07-01 [HUC: 030401010405] of the Yadkin-Pee Dee River Basin. Page 2 of 7 Permit NC0046426 PART I. A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade I 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: PARAMETERS Limits Monitoring Requirements eDMR Code Monthly Daily Measurement Sample Type Sample Average Maximum Frequency Location Flow(MGD) 50050 0.004 MGD Weekly Instantaneous Influent or Effluent BOD 5-Day C0310 30 mg/L 45 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 31616 200/100 mL 400/100 mL 2/Month Grab Effluent (geometric mean) Temperature°C 00010 Monitor and Report Weekly Grab Effluent Total Nitrogen 00600 Monitor and Report Quarterly Grab Effluent Total Phosphorous 00665 Monitor and Report Quarterly Grab Effluent pH 00400 Not< 6.0 or>9.0 s.u. Weekly Grab Effluent Footnotes: 1. The Permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR system [see A. (4.)]. See Condition A. (3.) for instructions should the facility's permitted UV system fail and an alternate means of disinfection is required. Total Residual Chlorine monitoring requirements and limits are applicable if chlorine compounds are used for disinfection. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS Page 3 of 7 Permit NC0046426 A. (2) NUTRIENT REOPENER FOR HIGH ROCK LAKE [G.S. 143.215.1 (b)] This permit may be reopened and modified to implement nutrient requirements in accordance with any future TMDL and/or nutrient management strategy for High Rock Lake. A.(3.) TEMPORARY MEANS OF DISINFECTION [G.S. 143-215, 143-215.1] a. In the event that the wastewater treatment plant's ultraviolet(UV)disinfection system fails, underperforms,or is removed from effective service,the permittee or his agent shall immediately inform the Winston Salem Regional Office of this development and discuss temporary,alternate means for disinfection of the effluent. b. If chlorine compounds are used as temporary means of disinfection, the total residual chlorine(TRC) concentration of the effluent shall be monitored daily while this method of disinfection is in use and values shall be reported on the discharge monitoring report. ;TRC in the effluent shall not exceed 281.tg/L; therefore,dechlorination methods may also be - -ssary to ens re protection of water quality in the receiving stream. c. In the event that TRC monitoring should occur,the I hall consider all effluent TRC values reported below 50 µg/L to be in compliance , ith the pe . However,the Permittee shall continue to record and submit all values reported by a ina c- ' l ed laboratory(including field certified), even if these values fall below 50 µg/L. d. Use of a disinfection system other than the permitted UV system during circumstances not deemed as emergency and/or temporary AlpIacement of lamps, lamp cleaning or maintenance, etc.)will be considered a violation of the t of this permit. A.(4.) ELECTRONIC ' ORTIN ,i IS RGE MONITORING REPORTS [G.S. 143-215.1 (b Federal regulations require elect. ittal of all discharge monitoring reports(DMRs)and program reports. The final NPDES Electronic Report I 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 1. Reporting Requirements [Supersedes Section D.(2.)and Section E. (5.)(a)1 The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report(eDMR) internet application. Page 4 of 7 Permit NC0046426 Monitoring results obtained during the previous month(s)shall be summarized for each month and submitted monthly electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the interne. 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"sectio w. Monitoring results obtained during the previous month(s)sh. .e suznma for each month and reported via the eDMR system no later than the last calendar day o - month follo he completed reporting period. Regardless of the submission method,the first ► , ' is on the last day of the month following the issuance of the permit or in the case of a new facility,on . .ay of the month following the commencement of discharge. Starting on December 21,2025,the permittee mV. 1 eport the following compliance monitoring data and reports,when applicable: • Sewer Overflow/Bypass Event Reports; and • Pretreatment Program Annual Deports;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). e. 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 pennittee 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/2015/10/22/2015-24954/national-pollutant-discharge-elimination- system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the"Reporting Requirements" section above. Page 5 of 7 Permit NC0046426 f. 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 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 g. Signatory Requirements [Supplements Section B. (11.)(b) and S edes Section B.(11.) (d)1 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 s - DMR must obtain an eDMR user account and login credentials to access the eDMR system. For • • .0 o • ion on North Carolina's eDMR system, registering for eDMR and obtaining . 1 p user . ount,please visit the following web page: http://deq.nc.gov/about/divisions/ i ) .• mu Certification. Any person • - . -ctronic DMR using the state's eDMR system shall make the following certification • FR 1 - •]. OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "I certify, under penalty of • h' s document and all attachments were prepared under my direction or supervision in accordance wit' /stem 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. 1 am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." h. 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 6 of 7 �'� 1, \•••• c'' \ oic_../..e,...: L - 1 t U YYY/ � . li "_ ,, NN Traphill� y r•\ ' Ot. Q tr • _ c `,j , , \ • • a a i 42 Y + y I 1292 * •� J .N. ••-�- .' r • Ow., ' Little Sandy Creek •{. r • n r -! . .„-- ,,,,. _.-...*: -- 4 Outfall001 (/' .k. -.. .. .254.\\ •• E 1 • • i c) 1..‘ h ft • 1 =a a r: � c it- -"-• , '''''''' Z2,00 ; ,.-. ,.. / / 1*.„ ..r,_ - - :4.,-fir , \ ♦♦ • , n 1 `--- f AV g11 _ ,.' 4 , ��,r `` "Gopyright:0 2013`ational Geographic Society,i-cubed Wilkes County Schools N ,,,, * Traphill Elementary School WWTP �_ . Y '' 1 15.000.000 Receiving Stream" Little Sandy Crek Stream Class: C Stream Segment: 12-46-4-10 Sub-Basin: 03-07-01 River Basin:Yadkin-Pee Dee HUC: 030401010405 Longitude: 81°02' 13" W Latitude: 36° 20' 24" N SCALE NPDES Permit NC0046426 1:16,000