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Home My WebLink AboutNC0056618_Draft Permit_20180220Water Resources ENVIRONMENTAL QUALITY February 20, 2018 Mr. Bryce Mendenhall Carolina Water Service, Inc. of North Carolina P.O. Box 240908 Charlotte, NC 28224-0908 Subject: Dear Permittee: ROY COOPER Governor MICHAEL S. REGAN Secretory LINDA CULPEPPER Interim Du ector Draft NPDES Permit NCO056618 Carolina Pines Estates WWTP Craven County Class -WW -2 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. (6.) 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. Please note that the Neuse River is listed as an impaired waterbody on the North Carolina 303(d) Impaired Waters List. Addressing impaired waters is a high priority with the Division, and instream data will continue to be evaluated. If there is noncompliance with permitted effluent limits and stream impairment can be attributed to your facility, then mitigative measures may be required. With this notification, the Division will solicit public comment on this draft permit by publishing a notice in newspapers having circulation in the general Craven 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. Since , PS 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 Permit NCO056618 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, Carolina Water Service, Inc. of NC is hereby authorized to discharge wastewater from a facility located at the Carolina Pines WWTP 141 Blackheath Drive New Bern Craven County to receiving waters designated as the Neuse River in subbasin 03-04-10 of the Neuse River Basin in accordance with effluent limits, 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 June 30, 2023. Signed this day DRAFT Linda Culpepper Interim Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 10 Permit NCO056618 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. Carolina Water Service, Inc. of NC is hereby authorized to: Continue to operate an existing 0.125 MGD wastewater treatment system that consists of the following components: ➢ Influent manual bar screen ➢ Flow equalization tank (.005 MG) ➢ Splitter box ➢ Dual - Extended air (0.075 MGD each) ➢ Dual clarifiers ➢ Chlorine contact chamber A Liquid chlorination and tablet de -chlorination ➢ Effluent holding tank with pumps 1 - Aerated sludge digester (.006 MG) Y Effluent flow measurement/ recorder Y 3 - Blowers > Backup standby power generator > Effluent holding tank with pumps Submerged effluent diffuser The facility is located north of Havelock at the Carolina Pines Estates WWTP (141 Blackheath Drive, New Bern) in Craven County. 2. After receiving an Authorization to Construct from the Division, construct and operate a 0.500 MGD wastewater treatment system. 3. Discharge from said treatment works at the location specified on the attached map into the Neuse River, currently classified SB -Swamp; NSW waters in the Neuse River Basin. Page 2 of 10 Permit NCO056618 Part I. A. (1.) EFFLUENT LIMITS AND MONITORING REQUIREMENTS - [0.125 MGD] [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of the permit, and lasting until expansion above 0.125 MGD or expiration, the permittee is authorized to discharge treated wastewater from outfall 001. Such discharges shall be limited and monitored4 by the nermittee ass ecified below: EFFLUENT CHARACTERISTICS Parameter Code EFFLUENT LIMITS MONITORING REQUIREMENTS Monthly Average Daily Maximum Unit of Measure Measurement Frequency Sample Type Sample Location Flow - 50050 0.125 MGD Weekly Instantaneous Influent or Effluent Total Monthly Flow - 82220 MG Monthly Calculated Influent or Effluent BOD, 5 -Da 20 Deg. C - 00310 300 45.0 m /L Weekly Com osite Effluent Total Suspended Solids - 00530 30.0 45.0 m /L Weekly Composite Effluent Ammonia Nitrogen as N - 00610 m /L Weekly Composite Effluent Total Residual Chlorine (TRC)l - 50060 13 /L 2 / week Grab Effluent Temperature, °Cents rade - 00010 deg C Weekly Grab Effluent Total Phosphorus, as P - 00665 m /L Weekly Com osite Effluent Total Nitro en2 as N - 00600 m /L Weekly Composite Effluent Total Nitrogen (Load) spounds/month 00600 Monthly Calculated Effluent ounds/ ear Annually Calculated Effluent Total Kjeldahl Nitrogen as N - 00625 m /L Weekly Composite Effluent Nitrite plus Nitrate as N - 00630 m /L Weekly Composite Effluent Enterococci, colony forming units - 1211(geometric mean 35 276 cfu/100ml Weekl Grab Effluent pH - 00400 > 6 8 and < 8.5 standard units Weekl Grab Effluent Footnotes: 1. The facility shall report all effluent TRC values reported by a North Carolina certified laboratory including field certified. However, effluent values below 50 µg/ L will be treated as zero for compliance purposes. 2. For a given wastewater sample, TN = TKN + NO2-N + NO3-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO2-N and NO3-N are Nitrite and Nitrate Nitrogen, respectively. 3. Total Nitrogen Load is the mass quantity of Total Nitrogen discharged in a given period of time [see A. (3)]. 4. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (6.)]. There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 3 of 10 Permit NCO056618 A. (2.) EFFLUENT LIMITS AND MONITORING REQUIREMENTS - [0.5 MGD] [ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning upon expansion to 0.500 MGD and lasting until June 30, 2013, the permittee is authorized to discharge treated wastewater from outfall 001. Such dischar es shall be limited and monitored6 by the permittee asspecified below: EFFLUENT CHARACTERISTICS Parameter Code EFFLUENT LIMITS MONITORING REQUIREMENTS Monthly Average Daily Maximum Unit of Measure Measurement Frequency Sample Type Sample Location Flow - 50050 0.500 MGD Weekly Instantaneous Influent or Effluent Total Monthly Flow - 82220 MG Monthly Calculated Influent or I Effluent BOD, 5 -Day (20 Deg. C) - 00310 - Summer 50 75 m /L Weekly Composite Effluent BOD, 5 -Da 20 De C - 00310 - Winter 10.0 150 m /L Weekly Composite Effluent Total Suspended Solids - 00530 30.0 45.0 m /L Weekl Composite Effluent Ammonia Nitrogen (as N) - 00610 - Summer 2.0 10.0 m /L Weekly Composite Effluent Ammonia Nitrogen as N - 00610 -Winter 40 200 m /L Weekly Composite Effluent Total Residual Chlorine (TRC)l - 50060 13 /L 2 / week Grab Effluent Temperature, °Centi rade - 00010 1 deg. C Weekly Grab Effluent Total Phosphorus, as P - 00665 2 0 m /L uarterl avera e z Weekly Composite Effluent Total Nitro en3 as N - 00600 m /L Weekly Composite Effluent Total Nitrogen (Load) a 00600 pounds/month Monthly Calculated Effluent 5,632 pounds/ ear annual loads Annually Calculated Effluent Total Kjeldahl Nitrogen as N - 00625 m /L Weekly Composite Effluent Nitrite plus Nitrate as N - 00630 m /L Weekly Composite Effluent Enterococci, colony forming units - 61211 (geometric mean 35 276 cfu/100ml Weekly Grab Effluent Dissolved Oxygen - 00300 Daily average?: 5.0 m /L Weekly Grab Effluent pH -00400 > 6.8 and < 8.5 standard units Weekly Grab Effluent Summer: April 1 -October 31; Winter: November 1 - March 31 Page 4 of 10 Permit NCO056618 Footnotes: 1. The facility shall report all effluent TRC values reported by a North Carolina certified laboratory including field certified. However, effluent values below 50 µg/L will be treated as zero for compliance purposes. 2. The quarterly average for Total Phosphorus shall be the average of composite samples collected weekly during each calendar quarter (January -March, April -June, July -September, October - December). 3. For a given wastewater sample, TN = TKN + NO2-N + NO3-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO2-N and NO3-N are Nitrite and Nitrate Nitrogen, respectively. 4. Total Nitrogen Load is the mass quantity of Total Nitrogen discharged in a given period of time. See Condition A. (3), Calculation of Total Nitrogen Loads. 5. Compliance with this limit shall be determined in accordance with Condition A. (4.), Annual Limits for Total Nitrogen. 6. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (6.)]. There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (3.) CALCULATION OF TOTAL NITROGEN LOADS [G.S. 143-215.1(b)] a. The permittee shall calculate monthly and annual TN Loads as follows: i. Monthly TN Load (pounds/month) = TN x TMF x 8.34 Where: TN = average TN 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 (pounds/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. (4.) ANNUAL LIMITS FOR TOTAL NITROGEN [G.S. 143-215.1(b)] (a) TN limits for NPDES dischargers in the Neuse River basin are as prescribed in the basin's Nutrient Management Strategy rule for wastewater treatment facilities, T1 SA NCAC 2B .0234. (b) The permittee's TN discharge is governed by this permit unless the permittee is a member and co -permittee of an approved compliance association, in which case its TN discharge is governed by the association's group NPDES permit and the limits therein. Page 5 of 10 Permit NCO056618 (c) TN limits for NPDES dischargers in the Neuse River basin are annual, calendar - year limits. All such limits in effect on January 1 of a given year remain in effect for the entire calendar year. Changes in TN limits become effective on January 1 of the year following permit modification and remain in effect for the full year. Similarly, changes in membership in a compliance association become effective on January 1 of the year following the change and remain in effect for the full year. (d) For any given calendar year, the permittee shall be in compliance with the annual TN Load limit in this permit if: (1) the permittee's annual TN Load is less than or equal to said limit, or (2) the permittee is a member of a compliance association and a co -permittee to the association's group NPDES permit. (e) The permittee's effective TN limit (if any) may change due to changes in its TN allocation or membership changes in a compliance association. (1) The permittee may notify the Division and request a modification of this permit to incorporate allowable changes in its TN Load limit. 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. (2) If the permittee intends to join or leave a compliance association, the Division must be notified of the proposed change. (3) Upon receipt of timely and proper notification, the Division will modify the affected permit(s) as necessary to incorporate the allowable changes in TN limits or to reflect the change in membership. a. The Division must receive notification no later than August 31 for changes proposed for the following calendar year. b. Notification shall be sent to: NCDWQ / NPDES Programs Attn: Neuse River Basin Coordinator 1617 Mail Service Center Raleigh, NC 27699-1617 (fl For the purpose of permit compliance, an association's co -permittee members in a calendar year (and the permittee's membership status) shall be as defined in its group NPDES permit. The roster and the members' TN allocations will be updated annually and in accordance with state and federal program requirements. (g) 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. (5.) 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 supercede any TN limits) established elsewhere in this permit or in the NPDES permit of a compliance association of which Page 6 of 10 the permittee is Permit NCO056618 a co -permittee member. ALLOCATION TYPE SOURCE DATE ALLOCATION AMOUNT (1) STATUS Estuary Discharge (pounds/year) (pounds/year) Base Assigned by Rule 12/7/1997, 5,632 5,632 Active (T15A NCAC 02B 4/1/2003 0234) Footnote 1. Transport Factor = 100% b. Any addition, deletion, or modification of the listed allocation(s) (other than to correct typographical errors) or any change in 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. (6.) 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 Pennits): • 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. (2.1 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: Page 7 of 10 Permit NCO056618 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-npdes- electronic -reporting -rule national-pollutant- discharge-elimination-system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. Page 8 of 10 Permit NCO056618 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 • / / deq nc gov /about/ divisions/water-resources / edmr 4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. 11. d 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 122.221. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: 7 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. " Page 9 of 10 Permit NCO056618 5. Records Retention [Supplements Section D. (6.11 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 10 of 10 Pt ,9 9`CROATAN1 � GAME LAND le �X Q y HeaA 1 ` ° �u Discharge Outfall 001 (783 ft offshore) /fir 'rt�; •✓` J .. tA ....L_._— —+a._ ' J If .-. CGL N3 IA iN -- u 33 e VV U•. nom., > ^" CROATAN \ GAME [.AND/�� 77777 - 1 Creek Ar l J ` , M C R 0 A - j •� %ts -�1r��l Facility NCO056618 — Carolina Pines WWTP Location X Latitude: 34258'15" Longitude: 76256'05" Stream Class: SB -Swamp NSW Sub -basin: 03-04-10 Receiving Stream: Neuse River North Craven County I L_Map not to scale