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HomeMy WebLinkAboutNC0064564_Draft Permit_20180207Water Resources ENVIRONMENTAL QUALITY ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director February 7, 2018 Mr. Shannon Becker Aqua North Carolina, Inc. 202 Mackenan Court Cary, NC 27511 Subject: Draft NPDES Permit NCO064564 Neuse Colony WWTP Johnston 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: ➢ Section A. (8) 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 Johnston 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 Sincer y, 3 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.Hdeq nc.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits Permit NCO064564 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 Neuse Colony WWTP NCSR 1705 and NC Highway 42 East of Clayton Johnston County to receiving waters designated as the Neuse River 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 March 31, 2023. Signed this day DRAFT Linda Culpepper Interim Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 13 Permit NC0064564 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 0.35 MGD wastewater treatment system with the following components: • Manual bar screen • Dual aeration basins • Anoxic zone • Dual clarifiers • Tertiary filters • Effluent flow meter • UV disinfection • Sludge digester • Generator The facility is located east of Clayton at the Neuse Colony Subdivision at NCSR 1705 and NC Highway 42 in Johnston County. 2. After receiving an Authorization to Construct from the Division, construct and operate additional treatment units necessary for treatment of up to 0.5 MGD of wastewater 3. After receiving an Authorization to Construct from the Division, operate additional treatment units for treatment of up to 0.75 MGD of wastewater. 4. Discharge from said treatment works at the location specified on the attached map into the Neuse River, currently classified WS -IV; NSW waters in sub -basin 03-04-02 of the Neuse River Basin. Page 2 of 13 Permit NCO064564 Part I. A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - (0.35 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until expansion above 0.25 MGD or expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored6 by the Permittee as specified below: Footnotes: 1. Upstream = at least 100 feet upstream from the outfall. Downstream = at least 300 feet below the outfall. 2. For a given wastewater sample, TN = TKN + NO2-N + NO3-N, where TN is Total Nitrogen and TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 3. TN Load is the mass load of Total Nitrogen discharged in a given period of time [see condition A. (5.) Calculation of Total Nitrogen Loads]. Page 3 of 13 EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER [parameter code] Monthly Daily Measurement Sample Sample Average Maximum Frequency Type Location' Flow [50050] 0 35 MGD Continuous Recording Influent or Effluent Total Monthly Flow [82220] Monitor & Report Monthly Calculated Influent or Effluent BOD, 5 -day (20°C) 5 0 mg/L 7.5 mg/L Weekly Composite Effluent (April 1— October 31) [00310] BOD, 5 -day (20°C) 10.0 mg/L 15 0 mg/L Weekly Composite Effluent (November 1— March 31) [00310] Total Suspended Solids [00530] 30.0 mg/L 45.0 mg/L Weekly Composite Effluent NH3 as N (April 1— October 31) [00610] 2 0 mg/L 10 0 mg/L Weekly Composite Effluent NH3 as N (November 1— March 31) [00610] 4 0 mg/L 20 0 mg/L Weekly Composite Effluent Dissolved Oxygen [00300] Daily average > 6.0 mg/L Weekly Grab Effluent Dissolved Oxygen [00300] Weekly Grab Upstream & Downstream Fecal Coliform (geometric mean) [31616] 200/100 mL 400/100 mL Weekly Grab Effluent Temperature (°C) [00010] Daily Grab Effluent Temperature (°C) [00010] Weekly Grab Upstream & Downstream TKN (mg/L) [00625] Monitor & Report Weekly Composite Effluent NO2-N + NO3-N (mg/L) [00630] Monitor & Report Weekly Composite Effluent TN (mg/L)2 [00600] Monitor & Report Weekly Composite Effluent Monitor & Report (lb/month) Monthly Calculated Effluent TN Load3 [00600] (8,447 pounds/year) 4 Annually Calculated Effluent Total Phosphorus5 [0 665] 2 0 mg/L quarterly average Weekly Composite Effluent pH [00400] < 6 0 and > 9 0 standard units Weekly Grab Effluent Footnotes: 1. Upstream = at least 100 feet upstream from the outfall. Downstream = at least 300 feet below the outfall. 2. For a given wastewater sample, TN = TKN + NO2-N + NO3-N, where TN is Total Nitrogen and TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 3. TN Load is the mass load of Total Nitrogen discharged in a given period of time [see condition A. (5.) Calculation of Total Nitrogen Loads]. Page 3 of 13 Permit NC0064564 4. Compliance with this limit shall be determined in accordance with Special Condition A. (6.) of this permit, Annual Limits for Total Nitrogen. 5. The quarterly average for total phosphorus shall be the average of composite samples collected weekly during each calendar quarter (January -March, Apnl-June, July -September, October - December). 6. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (8)]. See Condition A. (4) for instructions should the facility's permitted UV system fail and an alternative means of disinfect_on 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 4 of 13 Permit NCO064564 A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - (0.5 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning upon expansion above 0.25 MGD and lasting until expansion above 0.5 MGD or expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored6 by the Permittee as specified below: PARAMETER EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location [parameter code] Flow [50050] 0.5 MGD Continuous Recording Influent or Effluent Total Monthly Flow [82220] Monitor & Report Monthly Calculated Influent or Effluent BOD, 5 -day (20°C) [C0310] 5.0 mg/L 7.5 mg/L 3M/eek Composite Effluent (April 1— October 31) BOD, 5 -day (20°C) [C0310] 10.0 mg/L 15.0 mg/L 3Mleek Composite Effluent (November 1— March 31) Total Suspended Solids [00530] 30.0 mg/L 45.0 mg/L 3Mleek Composite Effluent NH3 as N [00610] (April 1— October 31) 2.0 mg/L 10.0 mg/L 3Mleek Composite Effluent NH3 as N [00610] (November 1— March 31) 4.0 mg/L 20.0 mg/L 3Mleek Composite Effluent Dissolved Oxygen [00300] Daily average > 6.0 mg/L 3Mleek Grab Effluent Dissolved Oxygen [00300] 3Mleek Grab Upstream & Downstream Fecal Coliform 200/100 ml 400/100 ml 3Mleek Grab Effluent (geometric mean) [31616] Temperature (°C) [00010] Daily Grab Effluent Temperature (°C) [00010] 3Mleek Grab Upstream & Downstream TKN (mg/L) [00625] Monitor & Report Weekly Composite Effluent NO2-N + NO3-N (mg/L) [00630] Monitor & Report Weekly Composite Effluent TN (mg/L)2 [00600] Monitor & Report Weekly Composite Effluent TN Load3 [00600] Monitor & Report (Ib/mo nth) Monthly Calculated Effluent (8,447 pounds / year) Annually Calculated Effluent Total Phosphorus5 [00665] 2.0 mg/L quarterly average Weekly Composite Effluent pH [00400] < 6.0 and > 9.0 standard units 3Mleek Grab Effluent Footnotes: 1. Upstream = at least 100 feet upstream from the outfall. Downstream = at least 300 feet below the outfall. 2. For a given wastewater sample, TN = TKN + NO2-N + NO3-N, where TN is Total Nitrogen and TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 3. TN Load is the mass load of Total Nitrogen discharged in a given period of time [see condition A. (5.) Calculation of Total Nitrogen Loads]. 4. Compliance with this limit shall be determined in accordance with Special Condition A. (6.) of this permit, Annual Limits for Total Nitrogen. Page 5 of 13 Permit NC0064564 5. The quarterly average for total phosphorus shall be the average of composite samples collected weekly during each calendar quarter (January -March, Apnl-June, July -September, October -December). 6. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (8)]. See Condition A. (4) for instructions should the facility's permitted UV system fail and an alternative 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 6 of 13 Permit NCO064564 A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - (0.75 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning upon expansion above 0.5 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored6 by the Permittee as specified below: Footnotes: 1. Upstream = at least 100 feet upstream from the outfall. Downstream = at least 300 feet below the outfall. 2. For a given wastewater sample, TN = TKN + NO2-N + NO3-N, where TN is Total Nitrogen and TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. Page 7 of 13 EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER Monthly Daily Measurement Sample Sample [parameter code] Average Maximum Frequency Type Location' Flow [50050] 0.75 MGD I Continuous Recording Influent or Effluent Total Monthly Flow [82220] Monitor & Report Monthly Calculated Influent or Effluent BOD, 5 -day (20°C) [C0310] 5.0 mg/L 7.5 mg/L 3/Week Composite Effluent (April 1— October 31) BOD, 5 -day (20°C) [00310] 10.0 mg/L 15.0 mg/L 3/Week Composite Effluent (November 1— March 31) Total Suspended Solids [00530] 30.0 mg/L 45.0 mg/L 3/Week Composite Effluent NH3 as N [00610] (April 1— October 31) 2.0 mg/L 10.0 mg/L 3/Week Composite Effluent NH3 as N [00610] 4.0 mg/L 20.0 mg/L 3/Week Composite Effluent (November 1— March 31) Dissolved Oxygen [00300] Daily average > 6.0 mg/L 3/Week Grab Effluent Dissolved Oxygen [00300] 3/Week Grab Upstream & Downstream Fecal Coliform (geometric mean) [31616] 200/100 ml 400/100 ml 3/Week Grab Effluent Temperature (°C) [00010] Daily Grab Effluent Temperature (°C) [00010] 3/Week Grab Upstream & Downstream TKN (mg/L) [00625] Monitor & Report Weekly Composite Effluent NO2-N + NO3-N (mg/L) [00630] Monitor & Report Weekly Composite Effluent TN (mg/L)2 [00600] Monitor & Report Weekly Composite Effluent TN Load3 [00600] Monitor & Report (Ib/mo 4th) Monthly Calculated Effluent (8,447 pounds / year) Annually Calculated Effluent Total Phosphorus5 [00665] 2.0 mg/L quarterly average Weekly Composite Effluent pH [00400] < 6 0 and > 9.0 standard units 3/Week Grab Effluent Footnotes: 1. Upstream = at least 100 feet upstream from the outfall. Downstream = at least 300 feet below the outfall. 2. For a given wastewater sample, TN = TKN + NO2-N + NO3-N, where TN is Total Nitrogen and TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 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Annual TN Load (pounds/year) = Sum of the 12 Monthly TN Loads for the calendar year 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. (6) ANNUAL LIMITS FOR TOTAL NITROGEN [G.S. 143-215.1(b)] a. Total Nitrogen (TN) allocations and TN Load limits for NPDES dischargers in the Neuse River basin apply on a calendar year basis. b. For any given calendar year, the Permittee shall be in compliance with the annual TN Load limit in this Permit if: i. the Permittee's annual TN discharge is less than or equal to its TN Load limit, or ii. the Permittee is a co -permittee member of a compliance association. C. If the Permittee is not a co -permittee member of a compliance association and the Permittee's cumulative annual TN discharge exceeds the effective TN Load limit in this permit at any point during the calendar year, the Permittee is in violation of its TN Load limit, and each day of a continuing violation shall constitute a separate violation. d. The TN Load limit in this Permit (if any) may be modified as the result of allowable changes in the Permittee's TN allocation. i. Allowable changes include those resulting from purchase of TN allocation from the Wetlands Restoration Fund; purchase, sale, trade, or lease of allocation between the Permittee and other dischargers; regionalization; and other transactions approved by the Division. ii. The Permittee may request a modification of the TN Load limit in this Permit to reflect allowable changes in its TN allocation. Upon receipt of timely and proper application, the Division will modify the permit as appropriate and in accordance with state and federal program requirements. iii. Changes in TN limits become effective on January 1 of the year following permit modification. The Division must receive application no later than August 31 for changes proposed for the following calendar year. iv. Application shall be sent to: NCDWR / NPDES Programs Attn: Neuse River Basin Coordinator 1617 Mail Service Center Raleigh, NC 27699-1617 Page 9 of 13 Permit NCO064564 e. If the Permittee is a member and co -permittee of an approved compliance association, its TN discharge during that year is governed by that association's group NPDES permit and the TN limits therein. i. The Permittee shall be considered a Co -Permittee Member for any given calendar year in which it is identified as such in Appendix A of the association's group NPDES permit. ii. Association roster(s) and members' TN allocations will be updated annually and in accordance with state and federal program requirements. iii. If the Permittee intends to join or leave a compliance association, the Division must be notified of the proposed action in accordance with the procedures defined in the association's NPDES permit. (A) Upon receipt of timely and proper notification, the Division will modify the permit as appropriate and in accordance with state and federal program requirements. (B) Membership changes in a compliance association become effective on January 1 of the year following modification of the association's permit. f. The TN monitoring and reporting requirements in this Permit remain in effect until expiration of this Permit and are not affected by the Permittee's membership in a compliance association. A. (7) TOTAL NITROGEN ALLOCATIONS [G. S. 143-215.1(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 supersede 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 TYPE SOURCE DATE STATUS Estuary (Ib/yr) Discharge (Ib/yr) Base Assigned by Rule 12/7/1997; 4,224 8,447 Active (T15A NCAC 02B 4/1/2003 0234) TOTAL 4,224 8,447 1 Active Footnote: 1. Transport Factor = 50% b. Any addition, deletion, or modification of the listed allocations (other than 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. Page 10 of 13 Permit NCO064564 A. (8) 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.) (all 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: Page 11 of 13 Permit NC0064564 t 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 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: / / deg.nc. gov / about/ divisions /water -resources / edmr Page 12 of 13 Permit NCO064564 4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. lj 1.) (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 122.221. 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 122.411. Page 13 of 13 NCO064564 — Neuse Colony WWTP Latitude: 3S° 38' 44" Sub -basin: 03-04-02 Longitude: 782 24' 20" Receiving Stream: Neuse River Stream Class: WS -IV; NSW Facility Location N 0 RTH Johnston County Map not to scale