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HomeMy WebLinkAboutNC0065714_Draft Permit_20171031Water Resources ENVIRONMENTAL QUALITY ROY COOPER Gove na MICHAEL S REGAN Secy elary S. JAY ZIMMERMAN Du eclor October 31, 2017 Mr. Thomas Roberts Aqua North Carolina, Inc. 202 Mackenan Court Cary, NC 27511 Subject: Draft NPDES Permit NCO065714 Tradewinds WWTP Wake County Class WW -2 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: ➢ Bar Screen was added to the treatment system component list. ➢ Section A. (5.) has been added to require electronic submission of effluent data. Federal regulations require electronic submittal of all discharge monitoring reports (DMRs). ➢ Regulatory citations have been added to the permit. ➢ 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 Wake County area, per EPA requirements. Please provide your comments, if any, to me 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 any questions concerning this permit, please contact Emily Phillips at (919) 807-6479. cc: NPDES files Since ly, Emily Phillips Compliance and Expedited Permitting Unit 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 gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits 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 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 Tradewinds Subdivision WWTP NCSR 2227 South of Wake Crossroads Wake County to receiving waters designated as Harris Creek in the Neuse 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 February 28, 2022. Signed this day DRAFT S. Jay Zimmerman, P.G. Director, Division of Water Resources 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 0.050 MGD extended aeration wastewater treatment system which includes the following components: ➢ Diffused air system ➢ 2 - 6,700 gallon aerated sludge holding basins ➢ Clarifier ➢ Bar Screen ➢ UV disinfection ➢ Stand by dechlorination ➢ SCADA system ➢ Flow meter The facility is located south of Wake Crossroads at the Tradewinds Subdivision WWTP off NCSR 2227 in Wake County. 2. Discharge from said treatment works at the location specified on the attached map into Harris Creek, currently classified C; NSW waters in sub -basin 03-04-02 of the Neuse River Basin. 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 the permit and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored5 by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Parameter Code Monthly Daily Measurement Sample Sample Average Maximum FrequeqcL Type Location Flow 0.050 MGD Continuous Recording' Influent r Effluent Total Monthly Flow (TMF) 2 Monitor & Report millions allons per month Monthly Calculated Influent or Effluent 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 N —Summer* 12 0 mg/L 35.0 mg/L Weekly Composite Effluent C06100 NH3 as N — Winter* Weekly Composite Effluent C0610 Temperature (°C) Daily Grab Effluent 00010 pH Not < 6.0 nor > 9.0 Weekly Grab Effluent 00400 Standard Units Fecal Coliform (geometric mean) 200/100 ml 400/100 ml Weekly Grab Effluent 31616 Total Residual Chlorine (TRC) 3 28 pg/L 2/Week Grab Effluent 50060 Nitrite/Nitrate Nitrogen (NO2-N + NO3—N) 4 Monitor and Report (mg/L) 2/Month Composite Effluent 00630 Total Kjeldahl Nitrogen (TKN) 4 Monitor and Report (mg/L) 2/Month Composite Effluent 00625 Total Nitrogen (TN) 2,4 TN = (NO2-N + NO3—N) + TKN Monitor and Report (mg/L) 2/Month Composite Effluent C0600 TN Load 2.4 Monitor and Report Monthly Calculated Effluent TN Load = TN x TMF x 8 34(pounds per month Monitor and Report QM600 - Monthly Annually Calculated Effluent QY600 - Yearly (pounds per year) Total Phosphorus (TP) Monitor and Report (mg/L) 2/Month Composite Effluent C0665 *Summer- Apnl 1 - October 31 *Winter. November 1 - March 31 Footnotes: 1. The daily flow is measured by a recorder and reported on the discharge monitoring report (DMR). A calculated monthly average of the daily rate based only on the days a flow occurred is reported on the DMR. The summation of the reported daily flows in a given month (TMF) are reported on the DMR. 2. TN Load is the mass quantity of Total Nitrogen discharged in a given period of time. Total Nitrogen Report details are in conditions A. (2) and A. (3.). Annual Nitrogen Allocation is listed in A. (4.). 3. Limits and monitoring for TRC will applq only if chlorine or a chlorine derivative is added to the waste stream. See Condition A. (5.) for instructions should the facility's permitted UV system fail and an alternate means of disinfection is required. 4. For a given wastewater sample, TN = (ND2-N+ NO3-N) + TKN, where TN is Total Nitrogen, (NO2-N + NO3-N) is Nitrite/Nitrate Nitrogen, and TKN is Total Kjeldahl Nitrogen, respectively. 5. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (5.)]. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS. A. (2.) CALCULATION OF TOTAL NITROGEN LOADS [G.S. 143-215(b)] a. The Permittee shall calculat-- monthly and annual TN Loads as follows: i. Monthly TN Load (pounds/month) = TN x TMF x 8.34 Where : TN = average Total Nitrogen concentration (mg/L) of the composite samples collected during the month TMF Total Monthly Flow of wastewater discharged during the month (MG/month) 8.34 conversion factor, from (mg/L x MG) to pounds ii. Annual TN Load (pour-ds/year) = Sum of the 12 Monthly TN Loads for the calendar year b. The Permittee shall report monthly Total Nitrogen results (mg/L and pounds/month) in the discharge monitoring report for that month and shall report each year's annual results (pounds/year) in the December report for that year. A. (3.) TOTAL NITROGEN ALLOCATIONS [G.S. 143-215(b)] a. The following table lists the Total Nitrogen (TN) allocation(s) assigned to, acquired by, or transferred to the Permittee in accordance with the Neuse River nutrient management rule (T15A NCAC 02B .0234) and the status of each as of permit issuance. For compliance purposes, this table does not supercede any TN limit(s) established elsewhere in this permit or in the NPDES permit of a compliance association of which the Permittee is a Co -Permittee Member. ALLOCATION ALLOCATION AMOUNT (1) SOURCE DATE STATUS Estuary (Ib/yr) Discharge (Ib/yr) TYPE Base Assigned by Rule 12/7/97; 506 1,011 Active (T15A NCAC 02B.0234) 4/1/03 TOTAL 506 1,011 Active Footnote: (1) Transport Factor= 50% b. Any addition, deletion, or modification of the listed allocation(s) (other than to correct typographical errors) or any change to Active status of any of the listed allocations shall be considered a major modification of this permit and shall be subject to the public review process afforded such modifications under state and federal rules. A. (4.) TEMPORARY MEANS OF DISINFECTION [NCGS 143-215.1(a)] 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 Surface Water Protection Section staff of the Raleigh 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 daily while this method of disinfection is in use and TRC values must be reported on the discharge monitoring report. 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. (5.) 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. (5.1 (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. 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 DENR / 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 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 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. 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(l)(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-npde s -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 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: htt-p://deg.nc.gov/about/divisions/water-resources/­edmr 4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. 11.(djj 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://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 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 poriod may be extended by request of the Director at any time [40 CFR 122.41]. 0 jua North Carolina, Inc. - Tradewinds WW" :ude: 3552'22 Sub -Basin: 03-04-02 ;itude: 7830'22 Receiving Stream: Harris Cre am Class: C; NSW Facility Location North Tradewinds WWTP