The URL can be used to link to this page

Home My WebLink AboutNC0032115_Draft Permit_20170920Water Resources .. Environmental Quality September 20, 2017 Mr. Rick Owen, Town Manager Town of Banner Elk P.O. Box 2049 Banner Elk, NC 28604 ROY COOPER Governor MICHAEL S. REGAN Seci etary S. JAY ZIMMERMAN Director Subject: Draft NPDES Permit NCO032115 Banner Elk WWTP, WW -3 Mill Pond Road, Banner Elk 28604 Avery County Dear Mr. Owen: In response to your request to renew the subject NPDES permit, the Division of Water Resources (DWR or the Division) hereby transmits this draft for your review and comment. Please review this document to assure your understanding of the permit limits and monitoring conditions, and to correct errors, if any. The Division understands that you have made no significant changes to your facility since the last permit renewal. We have made the following updates to your previous permit: 1. The facility map has been updated 2. Regulatory citations have been added. 3. Parameter codes have been added to Section A. (1.). 4. Electronic reporting of discharge monitoring reports (eDMR) has been added in Section A. (3.). 5. Total Mercury must be monitored once during the permit cycle. Mercury monitoring is included to provide a database for future mercury management and TMDL evaluation. See Special Condition A. (2). Concurrent with this notification, the Division will solicit public comment on this draft by publishing a notice in newspapers having circulation in the general Avery County area, as required by the NPDES Program. Please provide your comments, if any, to me via email [derek.denard@ncdenr.gov] or write to my attention care of DEQ / DWR / NPDES Program no later than October 20, 2017. Your written comments are welcome but not mandatory. Following the mandatory 30 -day public comment period, the Division will review all pertinent comments on your permit draft, and take appropriate action prior to issuing your NPDES permit final. If you have questions concerning this draft, please e-mail me or call my direct line (919) 807-6307. Sincerely, Derek Denard, Environmental Specialist Compliance & Expedited Permitting Unit Division of Water Resources, NCDEQ Enclosure: NPDES Permit NCO032115 (renewal DRAFT) he NPDES Program Files ec• DWR/ARO, Landon Davidson [landon davidson@ncdenr.gov], Tim Heim [tim.heim@ncdenr.gov] Wastewater Operator Certification Group / Maureen Kinney [Maureen.Kinney@ncdenr gov] State of North Carolina I Environmental Quality 1617 Mail Service Center I Raleigh, North Carolina 27699-1617 919-707-9000 NPDES Permit NCO032115 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM NPDF.S 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, the Town of Banner Elk is hereby authorized to discharge wastewater from a facility located at the Banner Elk WWTP Mill Pond Road, Banner Elk 28604 Avery County to receiving waters designated as the Elk River (Mill Pond) 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 become effective , 2017. This permit and authorization to discharge shall expire at midnight on September 30, 2022. Signed this day , 2017. S. Jay Zimmerman, P.G., Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 6 NPDES Permit NCO032115 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 Town of Banner Elk is hereby authorized to: 1. continue to operate an existing 0.600 MGD wastewater treatment system with the following components: • influent bar screen • comminutor • grit chamber • flow equalization • two (2) aeration basins • clarifier with return sludge • aerobic digester • UV disinfection • flow measuring • totalizing equipment • stand-by power • 0.8 meter Belt filter press located at the Town of Banner Elk V6-WTP, Mill Pond Road, Banner Elk, Watauga County; and 2. discharge from said treatment works via Outfall 001, at the location specified on the attached map, into the Elk River (Mill Pond) [stream index 8-22-(3)], currently classified C; Trout waters within Subbasin 04-02-01 [HUC: 0601010303051 of the Watauga River Basin. Page 2 of 6 NPDES Permit NCO032115 PART I 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, monitored and reported' by the Permittee as specified below: EFFLUENT LIMITS MONITORING REQUIREMENTS' CHARACTERISTIC Monthly Weekly Daily Measurement Sample Sample [Parameter Codes] Average Avera a Maximum Frequency Tye Location Flow(MGD)50050 0 600 MGD Continuous RecordingInfluent or Effluent BOD, 5 -day (20°C) 2 C0310 m 30 0 L 45 0 L m 3/Week Composite p went & Effluent Total Suspended Solids 2 C0530 30 0 mg/L 45.0 mg/L 3/Week Composite Influent & Effluent (TSS) (mg/L) NH3 as N (mg/L) C0610 4 5 mg/L 13 5 mg/L 3/Week Composite Effluent (April 1 — October 31) NH3 as N (mg/L) C0610 12 7 mg/L 35 0 mg/L 3/Week Composite Effluent (Novemberl—March3 l ) Fecal Coliform (#/100ml)3 31616 200/100 ml 400/100 ml 3/Week Grab Effluent geometric mean) Total Residual Chlorine 4 50060 28 0 µg/L 3/Week Grab Effluent (TRC) ( g/L) Temperature (°C) 00010 Monitor & Report Daily Grab Effluent Total Nitrogen (mg/L) C0600 Monitor & Report Semi -Annually Composite Effluent (NO2+NO3+TKN) Total Phosphorus (mg/L) C0665 Monitor & Report Semi -Annually Composite Effluent pH (su) 00400 Not < 6 0 nor > 9 0 Standard Units 3/Week Grab Effluent Total Mercury (ng/L) COMER Monitor & Report See Footnote 5 Composite Effluent Footnotes. 1 The Permittee shall begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Condition A. (3.). 2 The monthly average BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the respective influent values (85% removal). 3. Fecal Coliform shall be calculated using the geometric mean, according to the procedure detailed in Part II Section A. 4 Total Residual Chlorine limit and monitoring is required only if chlorine is utilized in the treatment process. The Division shall consider all effluent TRC values reported below 50 ug/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 ug/L. 5 Mercury must be monitored once during the permit cycle See Special Condition A (2). Conditions: There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 3 of 6 NPDES Permit NCO032115 A. (2.) EFFLUENT MERCURY ANALYSIS [G. S. 143-215.1(b)] The permittee shall provide in the next permit renewal application, at least one effluent mercury analysis using EPA Method 1631 E This mercury sample must be taken within 12 months prior to the application date. Any additional effluent mercury samples taken from the effective date of the permit until the application date shall also be submitted with the renewal application The mercury analysis must be provided with the application, or the application may be returned as incomplete and the permittee considered non-compliant. A. (3.) ELECTRONIC REPORTING OF MONITORING REPORTS [G.S. 143-215.1(b)] Federal regulations require electronic submit al 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 H of this permit (Standard Conditions for NPDES Permits) • Section B. (11.) Signatory Requi-ements • Section D. (2.) • Section D. (6.) • Section E. (5.) Reporting Records Retention Monitoring Reports 1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)1 The permittee shall report discharge mcmtonng 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 intemet. Until such time that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR 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 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 el--ctromc 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 mailing address above. 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. Page 4 of 6 NPDES Permit NC0032115 Starting on December 21, 2020, 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: http://www2.gpa.gov/compliance/final-national-pollutant-discharge-elmmnation-s, s�tem- npdes-electronic-reportmg-rule. Electronic submissions must start by the dates listed in the "Reporting Requirements" section above 3. How to Reauest a Waiver from Electronic Renortin 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 ne.gov/about/divisions/water-resources/edmr Page 5 of 6 NPDES Permit NC0032115 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 H, 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-Hdeq.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: U 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.)] 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 _ - /' spa 6-a"=.�; •. �� .->-s.�/ :� ` '�� 'j-�`_-"'_...-- ,. \--. � i Ij 18 Of Ir io- - t - i' • . .mak% _,' ' ~ " _ :_ y � Outfall 001' _ � � •' c �`� �si7 � _.� , �--: . '� tri xlP_I• y ' jjjLLLTTT Elk River (Mill Pond) [flows northwest]77 Mill Pond Rd =i eA MR 2. � �, �-��L� .3'757 • i Halston Cam �• + — _ ! 1l Arbar ep, Ir r 'r4# , % - �/' - � i'• _ .= i { yam" -"� ! .__�� w\ ( 00p t'? 2013 National•Geographi t Town of Banner Elk - Banner Elk WWTP NPDES Permit NCO032115 Mill Pond Road, Banner Elk 28604 Receiving Stream: Elk River (Mill Pond) Stream Class: C;Tr Stream Segment: 8-22-(3) Sub -Basin #: 04-02-01 River Basin: Watauga HUC: 060101030201 County: Avery N SCALE 1:24,000 USGS • .dPark,