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HomeMy WebLinkAboutNC0051381_Draft Permit_20230124 ROY COOPER r p'r Governor w. 07 ELIZABETH S.BISER x 3 , Secretary - .: RICHARD E.ROGERS,JR. NORTH CAROLINA Director Environmental Quality January 24,2023 Ms. Jennifer Royce Highlands Falls Community Association 91 Falls Drive West Highlands,NC 28741 Subject: Draft NPDES Permit NC0051381 Highlands Falls Community Association WWTP Grade WW-2 Biological WPCS Macon County Dear Permittee: The Division has reviewed your request to renew the subject permit. Enclosed with this letter is a copy of the draft permit for your facility. 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: ➢ Electronic data submission requirements have been updated. 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.Iy/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 Macon 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 charles.weaver(a�ncdenr.gov. Sincerely, filitill ' r)1- Environmental Specialist II NPDES Compliance and Expedited Permitting ....") North Carolina Department of Environmental Quality Division of Water Resources 512 North Salisbury Street I1611 Mail Service Center I Raleigh,North Carolina 27699-1611 NOR n1 CARux DNA �/ 919.707 9000 ry DaftaMnl of Environmental Qoo4ly\ /- Permit NC0051381 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision 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,the Highlands Falls Community Association is hereby authorized to discharge wastewater from a facility located at the Highlands Falls Community Association WWTP 23 Laurelwood Court Highlands Macon County to receiving waters designated as Saltrock Branch in the Little Tennessee 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 January 31, 2028. If the permittee intends to continue to discharge at the facility beyond the term of this permit, a renewal application must be submitted no later than August 4, 2027(180 days before the expiration of this permit). Signed this day Pic Richard E. Rogers,Jr. Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 6 Permit NC0051381 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. The Highlands Falls Community Association is hereby authorized to: 1. Continue to operate an existing 0.135 MGD extended aeration wastewater treatment system that includes the following components: • Influent bar screen • Flow splitter box • 100,000-gallon aeration basin with non-clog air diffusers • 26,276-gallon secondary clarifier • 15,000-gallon aerobic digester • Tertiary filtration • UV disinfection The facility is located at the Highlands Falls Community Association WWTP at 23 Laurelwood Court,northeast of Highlands in Macon County. 2. Discharge from said treatment works at the location specified on the attached map into Saltrock Branch [Stream Segment: 2-21-1],currently classified as WS-III waters in subbasin 04-04-01 [HUC: 0601020202] in the Little Tennessee River Basin. Page 2 of 6 Permit NC0051381 Part I Grade WW-2 Water Pollution Control System [15A NCAC 08G.0302] A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] 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 Parameter Code Average Maximum Frequency Type Location 2 Flow 50050 0.135 MGD Continuous RecordingInfluent or Effluent BOD,5-day(20°C) C0310 30.0 mg/L 45.0 mg/L Weekly Composite Effluent Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent NH3 as N(April 1 —October 31) C0610 2.0 mg/L 10.0 mg/L Weekly Composite Effluent NH3 as N(November 1 —March 31) C0610 5.0 mg/L 25.0 mg/L Weekly Composite Effluent Fecal Coliform(geometric mean) 31616 200/100 mL 400/100 mL Weekly Grab Effluent Total Residual Chlorine 3 50060 28 pg/L Daily Grab Effluent Temperature(°C) 00010 Monitor&Report Weekly Grab Effluent, U&D Total Nitrogen(NO2+NO3+TKN) C0600 Monitor&Report Semi-Annually Composite Effluent Total Phosphorus C0665 Monitor&Report Semi-Annually Composite Effluent pH 00400 >6.0 and<9.0 standard units Weekly Grab Effluent Footnotes: 1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR application system [see A. (3)]. 2. U=Upstream at least 50 feet from the outfall. D=Downstream at least 100 feet from the outfall. 3. Limit and monitoring requirements apply only if the facility adds chlorine or chlorine derivatives to water that is eventually discharged. 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. See A. (2.)for instructions should the facility's permitted UV system fail and an alternate means of disinfection is required. There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 3 of 6 • Permit NC0051381 A. (2.) TEMPORARY MEANS OF DISINFECTION In the event that the wastewater treatment plant's ultraviolet(UV)disinfection system should fail, underperform, or otherwise be removed from effective service,the permittee or his agent should immediately inform the Water Quality staff of the Asheville Regional Office of this development and discuss temporary, alternate means for disinfection of the effluent. If chlorine compounds are used as temporary means of disinfection,the total residual chlorine(TRC) concentration of the effluent must be monitored on a daily basis while this method of disinfection is in use and values must be reported on the discharge monitoring report. TRC in the effluent may not exceed 28 µg/L; therefore,dechlorination methods may also be necessary to ensure protection of water quality in the receiving stream. In the event that TRC monitoring should occur,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. Use of a disinfection system other than the permitted UV system during circumstances not deemed as emergency and/or temporary(replacement of lamps,lamp cleaning or maintenance,etc.)will be considered a violation of the terms of this permit. A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [NCGS 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 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. 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 DMRs electronically using the internet. 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 Page 4 of 6 Permit NC0051381 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 A FI ENTION: Central Files 1617 Mail Service Center Raleigh,North Carolina 27699-1617 See"How to Request a Waiver from Electronic Reporting" section below. 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). 2. 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/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. 3. 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 Page 5 of 6 Permit NC0051381 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 4. Signatory Requirements [Supplements Section B. (11.) (b)and Supersedes 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 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." 5. 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 6 • ii • �• `1'1\ /. ./ / •J. (` ri!'r `�-''� •r {`v `• `�.... t. \�Yjk'k>,, ` t , '117 ",/ I prle:"}:„ iif 1. ', 't'`, .. _ .. ♦\ Jr; 1 rl' ..) %a.°)''' \ y t` ` i�: � �,� \'`. "'''mac, ,,,,,:: ___ „,/„...,.... ..„_,..„k,....‘, . f„ ,,,_,:/401049—--; r ,---\-k.. .,•-• .../„..-' *if' ,s4"..--- -...;..;‘, c.,.. .•/3)-1, ,....: . , '7_7,, -...;%\ , / a� t: / -1 t l'` ) -lint 1,,,,,',..„�\.." ' `//�' 1 f r 1, ,. is/ ,Ea_- J tt /l , �„^,,.3 i f k E ,• Las,. ....._.-_.-vim-'- %r .-i iyi --- , ._r-�... 1 F' ice' _1 to j I� / f ) �' .., .��`� `t.-, ,; t 1 S /ri L,� / l i it L / ---r.F tea»-...-...�.. _, .1/ ln1c it t j ,:, i i i_-✓- .'`--.-J i /��''\, t j \1 V/�(� \Js :'�t' C"', {/f0 j /'''�r4..., 5`- �-/'� 1 '' i t y/• " !/ -_l -'� >, t t. i `%,t I. 4~� �1 ) t `; !! fIi. : t �Je.)J 1 1t { , )i. 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