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HomeMy WebLinkAboutNC0069311_Draft Permit_20201215ROY COOPER Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH Director NORTH CAROLINA EnWronmenhd Quoltry December 15, 2020 Mr. Chris Doherty, Public Utilities Director Franklin County Public Utilities 1630 US Highway 1 Youngsville, North Carolina 27596 Subject: Draft NPDES Permit Renewal Permit NCO069311 Franklin County WWTP Franklin County Grade IV Biological WPCS SIC Code 4952 Dear Mr. Doherty: Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please review this draft carefully to ensure thorough understanding of the requirements and conditions it contains. There are several changes from the existing permit, including the following: • Per 15A NCAC 08G .0302, the facility class has been changed to Grade IV due to the nutrient limits in the permit and the rule conditions [See A.(1.)]. • As the facility class has been updated, monitoring frequencies for BOD5, ammonia, TSS, fecal coliform, dissolved oxygen, temperature, pH, and conductivity have bden revised to reflect a Grade IV facility [See A.(1.)]. • Based on the reasonable potential analysis (RPA) showing no reasonable potential to violate state water quality standards, the monitoring requirement for total zinc has been removed from the permit [See A.(1) and A.(2.)]. • Based on the reasonable potential analysis (RPA) predicting a maximum effluent total lead concentration that is greater than half of the allowable discharge concentration based on state water quality standards, quarterly monitoring for total lead has been added to the permit [See A.(1) and A.(2.)]. • Based on the reasonable potential analysis (RPA) showing reasonable potential to violate state water quality standards, total copper and total cadmium limits have been added to the permit and the quarterly monitoring requirement has been changed to monthly monitoring [See A.(1) and A.(2.)]. • The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by the NC Environmental Management Committee (EMC) on November 13, 2014. The US EPA subsequently approved the WQS revisions on April 6, 2016 with some exceptions. The NC Division of Water Resources NPDES Permitting Unit is required to implement the new dissolved metal standards in all permits public noticed after April 6, 2016. The new standards for most metals include acute standards. Further, the freshwater standards for several metals are expressed as the dissolved form of the metals, and seven metals have hardness -dependent equations. As a result, the NPDES Permitting Unit will need site - specific effluent hardness data and instream hardness data, upstream of the discharge, for North Carolina Department of Environmental Quality I Division of Water Resources z_�,-MEQ v 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699 1617 wWN 919.707.9000 each facility monitoring these metals in order to calculate permit limitations. Effluent hardness and instream hardness sampling, upstream of the discharge, have been added to the permit at a monitoring frequency of quarterly [See A.(1.)]. • Franklin County Public Utilities reported Total Selenium and Total Silver at less than detection, with detection levels < 10.0 µg/L, and < 5.0 µg/L respectively, in the Effluent Pollutant Scans (or their DMR results). The Town's allowable discharge concentrations are 7.6 µg/L and 0.091 µg/L for Total Selenium and Total Silver, respectively. DWR's laboratory identifies the target Practical Quantification Limit (PQL) for both Total Selenium and Total Silver as 1.0 µg/L. 15A NCAC 2B .0505 (e) (4) requires that all test procedures must produce detection and reporting levels that are below the permit discharge requirements and all data generated must be reported to the approved detection level or lower reporting level of the procedure. If no approved methods are capable of achieving a detection level below the permit discharge requirement (or allowable discharge concentration) the method with the lowest detection level must be used. The County should use sufficiently sensitive test methods for all pollutants, including when performing Effluent Pollutant Scans. • Some of the wording has changed in Special Condition A.(7.), Chronic Toxicity Permit Limit, please review each paragraph carefully. • Special Condition A.(8.) has been modified to include the specific three years in which the Effluent Pollutant Scan shall be performed (2022, 2023, and 2024). In addition, at the end of the Special Condition, 2°d species Toxicity Testing Requirements for municipal permit renewals per Federal Regulations [40 CFR 122.210)(5)] have been added. • Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The requirement to continue reporting discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application has been added to your NPDES permit [See Special Condition A.(9.)]. • Parameter codes have been added to the Effluent Limitations and Monitoring Requirements [ See A. (1.) and A.(2.)]. • Regulatory citations have been added to the permit. 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.ly/3k5NFaL and can be viewed online or downloaded as a PDF file. Concurrent with this notification the Division is publishing a notice in a newspaper having circulation in the general Franklin County area, soliciting public comments on this draft permit. Please provide any written comments you may have to the following: NCDEQ/DWR, NPDES Permitting Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617 no later than 30 days after receipt of 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 this draft permit, please call me at (919) 707-3609 or by email at nick.coco@ncdenr.gov. Page 2 of 3 Sincerely, Nick Coco, Engineer NPDES Municipal Permitting Unit Hardcopy: NPDES Files Ecopy: US EPA Region 4 DWR/Raleigh Regional Office/Water Quality/Scott Vinson DWR/Operator Certification Program/Maureen Kinney DWR/Aquatic Toxicology Branch/Cindy Moore and Zachary Thomas DWR/Ecosystems Branch/Mark Vander Borgh Page 3 of 3 Permit NC0069311 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, the Franklin County Public Utilities is hereby authorized to discharge wastewater from a facility located at the Franklin County Wastewater Treatment Plant 1099 Lane Store Road, Franklinton Franklin County to receiving waters designated as Cedar Creek in the Tar -Pamlico River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV hereof. The permit shall become effective: .............................................................................................. Month xx, 2020. This permit and the authorization to discharge shall expire at midnight on: .............. September 30, 2025. Signed this day: .................... Month xx, 2020. DRAFT for S. Daniel Smith, Director Division of Water Resources By Authority of the Environmental Management Commission Permit NC0069311 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. Franklin County Public Utilities is hereby authorized to: 1. Continue operation of a 3.0 MGD wastewater treatment facility that includes the following components: • Influent pump station with mechanical and manual bar screens • Grit chamber • Dual aeration/anaerobic/anoxic basins • Dual clarifiers • Dual tertiary filters • Dual train UV system • Parshall flume • Post aeration • Aerobic digester This facility is located at the Franklin County Wastewater Treatment Plant at 1099 Lane Store Road, Franklinton in Franklin County. 2. Discharge treated wastewater from said treatment works at the location specified on the attached map through outfall 001 into Cedar Creek, a class C-NSW water in the Tar -Pamlico River Basin. Page 2 of 16 Permit NCO069311 PART A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water Pollution Control System [15A NCAC 08G .0302] Beginning on the effective date of the permit and lasting until the monthly average flow equals or exceeds 90% of 2.0 MGD (1.8 MGD)1, or until permit expiration, the Permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges shall be limited and monitored2 by the Permittee as specified below: PARAMETER Parameter Code EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily I Maximum Measurement Frequency Sample Type Sample Location3 Flow 50050 2.0 MGD Continuous Recording I or E Total Monthly Flow 82220 Monitor and Report Monthly Recorded or Calculated I or E BOD5 (20°C) 4 80082 (April 1 - October 31) 8.0 mg/L 12.0 mg/L Daily Composite I and E BOD5 (20°C) 4 80082 (November 1 - March 31) 18.0 mg/L 27.0 mg/L Daily Composite I and E Total Suspended Solids4 C0530 30.0 mg/L 45.0 mg/L Daily Composite I and E Ammonia (NH3 as N) C0610 (April 1 - October 31) 1.0 mg/L 3.0 mg/L Daily Composite E Ammonia (NH3 as N) C0610 (November 1 - March 31) 2.0 mg/L 6.0 mg/L Daily Composite E Fecal Coliform 31616 (geometric mean) 200/100 mL 400/100 mL Daily Grab E Dissolved Oxygen 00300 Daily Average:?: 5.0 mg/L Daily Grab E Temperature, °C 00010 Monitor and Report Daily Grab E Conductivity, pmhos/cm 00094 Monitor and Report Daily Grab E pH 00400 Between 6.0 and 9.0 standard units Daily Grab E TKN, mg/L5 00625 Monitor and Report Weekly Composite E NO3-N + NOz-N, mg/1-5 00630 Monitor and Report Weekly Composite E TN, mg/1-5 C0600 Monitor and Report Weekly Composite E TN Loadb QM600 QY600 Monitor and Report (lb/mo) 42,784lb/yr7 Monthly Calculated E Annually Calculated E TP, mg/1-5 C0665 Monitor and Report Weekly Composite E TP Loadb QM665 QM665 Monitor and Report 7,732lb/yr' Monthly Calculated E Annually Calculated E Total Copper 01042 37.9 pg/L 53.6 Ng/L Monthly Composite E Total Cadmium 01027 2.4 pg/L 15.0 pg/L Monthly Composite E Total Lead, pg/L 01051 Monitor and Report Quarterly Composite E Total Hardness [as 00900 CaC031, mg/LB Monitor and Report Quarterly Composite E Chronic Toxicity9 TGP3B See Note 9 Quarterly Composite E Effluent Pollutant Scan NC01 Monitor and Report Footnote 10 E Dissolved Oxygen, mg/L 00300 Monitor and Report Variable3 Grab U, D Conductivity, pmhos/cm 00094 Monitor and Report Variable3 Grab U, D Temperature, °C 00010 Monitor and Report Variable3 Grab U, D Total Hardness [as 00090 CaC031, mg/Ll' Monitor and Report P Quarterly Grab U (Footnotes on next page.) Page 3 of 16 Permit NC0069311 Footnotes: 1. See Special Condition A.(3) for Flow Considerations. 2. The Permittee shall submit discharge monitoring reports electronically using NC DWR's eDMR application system. See Special Condition A.(9.). 3. Sample Location: E - Effluent, I - Influent, U - Upstream at NC 1116, D - Downstream at NC 1114. Stream samples shall be collected three times per week during the months of June, July, August, and September and weekly during the remainder of the year. Instream monitoring requirements are waived as long as the Permittee maintains membership in the Tar -Pamlico Basin Association. If the Permittee ceases membership, then all instream monitoring requirements specified in this permit are immediately reinstated. 4. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15 % of the respective influent value (85% removal). 5. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. TP is Total Phosphorus. 6. TN or TP Load is the mass quantity of Total Nitrogen or Total Phosphorus discharged in a given period of time. See Special Condition A. (4.) Calculation of Total Nitrogen and Total Phosphorous Loads. 7. Compliance with mass limits shall be determined in accordance with Special Condition A.(5.) Annual Limits for Total Nitrogen or Total Phosphorus. 8. Effluent hardness sampling should be performed in conjunction with testing for hardness dependent metals (cadmium, copper, lead, nickel, silver, and zinc). 9. Chronic Toxicity (Ceriodaphnia) P/F @ 66%, January, April, July, October; See Special Condition A.(7.). 10. The Permittee shall perform three Effluent Pollutant Scans during the term of this permit [see A.(8.)]. 11. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample shall be representative of the hardness in the receiving stream. If the Permittee is a member of the Monitoring Coalition Program, sampling for instream hardness may be waived as long as the Monitoring Coalition agrees to sample hardness at the nearest upstream location, at a minimum frequency of quarterly, and the Permittee has obtained approval from DWR - NPDES Permitting Unit that the upstream station being monitored by the Coalition is representative of the receiving stream for this discharge. The Permittee is responsible for submitting instream hardness test results with its permit renewal application package. If Coalition membership is cancelled or the Coalition terminates instream hardness sampling at the approved station, the Permittee will immediately notify the Division and resume sampling for instream hardness, upstream of its discharge. b. There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 4 of 16 Permit NCO069311 A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water Pollution Control System [15A NCAC 08G .0302] a. Beginning on the date monthly average flow increases above 90% of 2.0 MGD (1.8 MGD)1 and lasting until permit expiration, the Permittee is authorized to discharge treated wastewater from Outfall 001. Such dischar es shall be limited and monitore 2by the Permittee asspecified below: PARAMETER Parameter Code EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location3 Flow 50050 3.0 MGD Continuous Recording I or E Total Monthly Flow 82220 Monitor and Report Monthly Recorded or Calculated I or E BOD5 (20oC) 4 80082 (April 1 - October 31) 8.0 mg/L 12.0 mg/L Daily Composite I and E BOD5 (20°C) 4 80082 (November 1 - March 31) 18.0 mg/L 27.0 mg/L Daily Composite I and E Total Suspended Solids4 C0530 30.0 mg/L 45.0 mg/L Daily Composite I and E Ammonia (NH3 as N) C0610 (April 1 - October 31) 1.0 mg/L 3.0 mg/L Daily Composite E Ammonia (NH3 as N) C0610 (November 1 - March 31) 2.0 mg/L 6.0 mg/L Daily Composite E Fecal Coliform 31616 (geometric mean) 200/100 mL 400/100 mL Daily Grab E Dissolved Oxygen 00300 Daily Average >_ 5.0 mg/L Daily Grab E Temperature, °C 00010 Monitor and Report Daily Grab E Conductivity, pmhos/cm 00094 Monitor and Report Daily Grab E pH 00400 Between 6.0 and 9.0 standard units Daily Grab E TKN, mg/LS 00625 Monitor and Report Weekly Composite E NO3-N + NO2-N, mg/1-5 00630 Monitor and Report Weekly Composite E TN, mg/1-5 C0600 Monitor and Report Weekly Composite E TN Load6 QM600 QY600 Monitor and Report (lb/mo) 42,784lb/yr7 Monthly Calculated E Annually Calculated E TP, mg/Ls C0665 Monitor and Report Weekly Composite E TP Load6 QM665 QM665 Monitor and Report 7,732lb/yr7 Monthly Calculated E Annually Calculated E Total Copper 01042 33.6 pg/L 48.1 pg/L Monthly Composite E Total Cadmium 01027 2.2 pg/L 1 13.5 pg/L Monthly Composite E Total Lead, pg/L 01051 Monitor and Report Quarterly Composite E Total Hardness [as 00900 CaC031, mg/1-8Quarterly Monitor and Report Composite E Chronic Toxicity9 TGP3B See Note 9 Quarterly Composite E Effluent Pollutant Scan NC01 Monitor and Report Footnote 10 E Dissolved Oxygen, mg/L 00300 Monitor and Report Variable3 Grab U, D Conductivity, pmhos/cm 00094 Monitor and Report Variable3 Grab U, D Temperature, °C 00010 Monitor and Report Variable3 Grab U, D Total Hardness [as 00090 CaC031, mg/Lll Monitor and Report P Quarterly Grab U (Footnotes on next page.) Page 5 of 16 Permit NCO069311 Footnotes: 1. See Special Condition A.(3) for Flow Considerations. 2. The Permittee shall submit discharge monitoring reports electronically using NC DWR's eDMR application system. See Special Condition A.(9.). 3. Sample Location: E - Effluent, I - Influent, U - Upstream at NC 1116, D - Downstream at NC 1114. Stream samples shall be collected three times per week during the months of June, July, August, and September and weekly during the remainder of the year. Instream monitoring requirements are waived as long as the Permittee maintains membership in the Tar -Pamlico Basin Association. If the Permittee ceases membership, then all instream monitoring requirements specified in this permit are immediately reinstated. 4. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of the respective influent value (85% removal). 5. For a given wastewater sample, TN = TKN + NO3-N + NOrN, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NOrN are Nitrate and Nitrite Nitrogen, respectively. TP is Total Phosphorus. 6. TN or TP Load is the mass quantity of Total Nitrogen or Total Phosphorus discharged in a given period of time. See Special Condition A.(4.) Calculation of Total Nitrogen and Total Phosphorous Loads. 7. Compliance with mass limits shall be determined in accordance with Special Condition A.(5.) Annual Limits for Total Nitrogen or Total Phosphorus. 8. Effluent hardness sampling should be performed in conjunction with testing for hardness dependent metals (cadmium, copper, lead, nickel, silver, and zinc). 9. Chronic Toxicity (Ceriodaphnia) P/F ® 74%, January, April, July, October; See Special Condition A.(7.). 10. The Permittee shall perform three Effluent Pollutant Scans during the term of this permit [see A.(8.)]. 11. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample shall be representative of the hardness in the receiving stream. If the Permittee is a member of the Monitoring Coalition Program, sampling for instream hardness may be waived as long as the Monitoring Coalition agrees to sample hardness at the nearest upstream location, at a minimum frequency of quarterly, and the Permittee has obtained approval from DWR - NPDES Permitting Unit that the upstream station being monitored by the Coalition is representative of the receiving stream for this discharge. The Permittee is responsible for submitting instream hardness test results with its permit renewal application package. If Coalition membership is cancelled or the Coalition terminates instream hardness sampling at the approved station, the Permittee will immediately notify the Division and resume sampling for instream hardness, upstream of its discharge. There shall be no discharge of floating solids or visible foam in other than trace amounts. A.(3.) FLOW MONITORING REQUIREMENTS [G.S. 143-215.661 Each month, the facility shall evaluate the monthly average flow, expressed as MGD, for the previous month. If the monthly average flowrate is equal to or greater than 1.8 MGD, the facility shall move up to the 3.0 MGD flow regime on the permit. The facility shall call the Water Quality Program Supervisor at the Raleigh Regional Office at (919) 791-4200 and inform him or her of the flow regime change, so that the BIMS database can be updated. The flow limit does not go back down if the Monthly Average flow decreases. Page 6 of 16 Permit NCO069311 A.(4.) CALCULATION OF TOTAL NITROGEN AND TOTAL PHOSPHORUS LOADS [G.S.143-215.1(b)] a. The Permittee shall calculate monthly and annual TN Loads as follows: (i.) Monthly TN (or TP) Load (lb/mo) = TN (or TP) x TMF x 8.34 where: TN or TP = the average Total Nitrogen or Total Phosphorus concentration (mg/L) of the composite samples collected during the month TMF = the Total Monthly Flow of wastewater discharged during the month (MG/ mo) 8.34 = conversion factor, from (mg/L x MG) to pounds (ii.) Annual TN (or TP) Load (lb/yr) = Sum of the 12 Monthly TN (or TP) Loads for the calendar year b. The Permittee shall report monthly Total Nitrogen and Total Phosphorus results (mg/L and lb/mo) in the appropriate discharge monitoring report for each month and shall report each calendar year's results (lb/yr) with the December report for that year. A.(5.) ANNUAL LIMITS FOR TOTAL NITROGEN OR TOTAL PHOSPHORUS [G.S.143-215.1(b)] a. Total Nitrogen (TN) and Total Phosphorus (TP) allocations and load limits for NPDES dischargers in the Tar -Pamlico River basin are annual limits and apply on a calendar year basis. b. For any given calendar year, the Permittee shall be in compliance with the annual TN (or TP) Load limit in this Permit if: (i.) the Permittee's annual TN (or TP) Load is less than or equal to the effective 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 (or TP) discharge exceeds the effective TN (or TP) Load limit in this permit at any point during the calendar year, the Permittee is in violation of its TN (or TP) Load limit for the remainder of the calendar year, and each day of continuing violation shall constitute a separate violation. Compliance with annual limits shall be determined separately for each calendar year, and an exceedance in one year does not carry forward to subsequent years. d. The TN (or TP) Load limit in this Permit (if any) may be modified as the result of allowable changes in the Permittee's allocations. (i.) Allowable changes include those resulting from purchase of TN (or TP) allocation from an authorized mitigation banker, the Ecosystem Enhancement Program, or other source allowed under applicable regulations; purchase, sale, trade, or lease of allocation between the Permittee and other dischargers; and other transactions approved by the Division and consistent with the Tar -Pamlico River Basin Association Agreement, as revised. (ii.) The Permittee may request a modification of the TN (or TP) Load limit in this Permit to reflect allowable changes in its allocation(s). 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 (or TP) 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: Page 7 of 16 Permit NC0069311 NCDWR / Wastewater Permits Branch Attn: Tar -Pamlico River Basin Coordinator 1617 Mail Service Center Raleigh, NC 27699-1617 e. If the Permittee is a member and co-permittee of an approved compliance association on January 1 of a given year, its TN and TP discharges during that year are governed by that association's group NPDES permit and the 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 and TP 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 and TP monitoring and reporting requirements in this Permit remain in effect throughout the term of the Permit and are not affected by the Permittee's membership in a compliance association. A.(6.) NUTRIENT ALLOCATIONS [G.S.143-215.1(b)] a. Total Nitrogen (TN) and Total Phosphorus (TP) allocations represent the maximum TN and TP loads that a discharger or group of dischargers is potentially allowed under the Tar -Pamlico nutrient management strategy. Allocations are not enforceable limits but are the basis for TN and TP limits established in individual or group NPDES permits. b. The allocations originally assigned to the Tar -Pamlico Basin Association members total 889,274 lb/yr (404,274 kg/yr) TN and 160,372 lb/yr (73,060 kg/yr) TP. These group allocations have been divided among the members in proportion to the maximum permitted flow in each member's permit; that is, Individual Permitted Flow Individual Allocation (TP or (MGD) x Group Allocation, TPBA (TN TN) = Total Permitted Flow, TPBA or TP) (MGD) For the purposes of this distribution, individual permitted flows for the Association members are those in effect as of July 2014 and result in a Total Permitted Flow of 62.495 MGD. C. The following table lists, for information purposes only, the TN and TP allocations assigned to, acquired by, or transferred to the Permittee in accordance with the Tar -Pamlico River Basin Phase IV Agreement. Applicable TN or TP limits are established in the Effluent Limitations conditions of this permit or in the NPDES permit of a compliance association of which the Permittee is a Co- Permittee Member. Page 8 of 16 Permit NCO069311 Allocation Type Source Date Allocation Amount Status (Ib/ r) (k r) Tar -Pamlico River Total Nitrogen Basin Phase IV 7/9/2015 42,784 19,406 Active Agreement Total Tar -Pamlico River Phosphorus Basin Phase IV 7/9/2015 7,732 3,507 Active Agreement Any addition, deletion, or modification of the listed allocation(s) (other than to correct typographical errors) or any change from Reserve 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 9 of 16 Permit NCO069311 A.(7.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) [15A NCAC 02B .0200 et seq.] The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 66% at 2.0 MGD and 74% at 3.0 MGD. The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised- December 2010) or subsequent versions. The tests will be performed during the months of January, April, July, and October. These months signify the first month of each three-month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -December 2010) or subsequent versions. All toxicity testing results required as part of this permit condition will be entered electronically using the Divisions eDMR system for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT-3 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources Water Sciences Section/ Aquatic Toxicology Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Or, results can be sent to the email, ATForms.ATB@ncdenr.gov. Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/ physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the Permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water Sciences Section at the address cited above. Should the Permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required during the following month. Assessment of toxicity compliance is based on the toxicity testing quarter, which is the three month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re- opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Page 10 of 16 Permit NCO069311 A.(8.) EFFLUENT POLLUTANT SCAN [G.S.143-215.1(b)] a. The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below. One scan must be performed in each of the following years: 2022, 2023, and 2024. Analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than applicable standards and criteria. Samples should be collected with one quarterly toxicity test each year, and must represent seasonal variation [i.e., do not sample in the same quarter every year]. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia (as N) C0610 Trans-1,2-dichloroethylene 34546 Bis (2-chloroethyl) ether 34273 Chlorine (total residual, TRC) 50060 1,1-dichloroethylene 34501 Bis (2-chloroisopropyl) ether 34283 Dissolved oxygen 00300 1,2-dichloropropane C0541 Bis (2-ethylhexyl) phthalate C0100 Nitrate / Nitrite 00630 1,3-dichloropropylene 77163 4-bromophenyl phenyl ether 34636 Kjeldahl nitrogen 00625 Ethylbenzene 34371 Butyl benzyl phthalate 34292 Oil and grease 00556 Methyl bromide 34413 2-chloronaphthalene 34581 Phosphorus C0665 Methyl chloride 34418 4-chlorophenyl phenyl ether 34641 Total dissolved solids 70295 Methylene chloride 34423 Chrysene 34320 Hardness 00900 1,1,2,2-tetrachloroethane 81549 Di-n-butyl phthalate 39110 Antimony 01097 Tetrachloroethylene 34475 Di-n-octyl phthalate 345% Arsenic 01002 Toluene 34010 Dibenzo(a,h)anthracene 34556 Beryllium 01012 111,1-trichloroethane 34506 1,2-dichlorobenzene 34536 Cadmium 01027 1,1,2-trichloroethane 34511 1,3-dichlorobenzene 34566 Chromium C0034 Trichloroethylene 39180 1,4-dichlorobenzene 34571 Copper 01042 Vinyl chloride 39175 3,3-dichlorobenzidine 34631 Lead 01051 Acid -extractable compounds: Diethyl phthalate 34336 Mercury (Method 1631E) COMER P-chloro-m-cresol 34452 Dimethyl phthalate 34341 Nickel 01067 2-chlorophenol 34586 2,4-dinitrotoluene 34611 Selenium 01147 2,4-dichlorophenol 34601 2,6-dinitrotoluene C0626 Silver 01077 2,4-dimethylphenol 34606 1,2-diphenylhydrazine 34346 Thallium 01059 4,6-dinitro-o-cresol 34657 Fluoranthene C0376 Zinc 01092 2,4-dinitrophenol 34616 Fluorene 34381 Cyanide 00720 2-nitrophenol 34591 Hexachlorobenzene C0700 Total phenolic compounds 32730 4-nitrophenol 34646 Hexachlorobutadiene C0702 Volatile organic compounds: Pentachlorophenol 39032 Hexachlorocyclo-pentadiene 34386 Acrolein 34210 Phenol 34694 Hexachloroethane 34396 Acrylonitrile 34215 2,4,6-trichlorophenol 34621 Indeno(1,2,3-cd)pyrene 34403 Benzene 34030 Base --neutral compounds: Isophorone 34408 Bromoform 32104 Acenaphthene 34205 Naphthalene 34696 Carbon tetrachloride 32102 Acenaphthylene 34200 Nitrobenzene 34447 Chlorobenzene 34301 Anthracene CO220 N-nitrosodi-n-propylamine 34428 Chlorodibromomethane 34306 Benzidine 39120 N-nitrosodimethylamine 34438 Chloroethane 85811 Benzo(a)anthracene C0526 N-nitrosodiphenylamine 34433 2-chloroethyl vinyl ether 34576 Benzo(a)pyrene 34247 Phenanthrene 34461 Chloroform 32106 3,4 benzofluoranthene 34230 Pyrene 34469 Dichlorobromomethane 32101 Benzo(ghi)perylene 34521 1,2,4-trichlorobenzene C0551 1,1-dichloroethane 34496 Benzo(k)fluoranthene 34242 1,2-dichloroethane 32103 Bis (2-chloroethoxy) methane 34278 b. Reporting. Test results shall be reported electronically using the Divisions eDMR system or on DWR Form DMR-PPA-1(or on a form approved by the Director) by December 31st of each designated sampling year. C. The Permittee must at least report completion of the test in the eDMR system by entering "1" or "Y" for parameter code NC01- Annual Pollutant Scan. If utilizing the DWR Form submit to the following address: Page 11 of 16 Permit NCO069311 NC DEQ/ DWR/ NPDES Files,1617 Mail Service Center, Raleigh, North Carolina 27699-1617. Or the form may be uploaded at: hW2s://edocs.deq.nc.gov/Forms/­NPDES WW-EDMR- SuPplemental-Form d. Additional Toxicity Testing Requirements for Municipal Permit Renewal. Please note that Municipal facilities that are subject to the Effluent Pollutant Scan requirements listed above are also subject to additional toxicity testing requirements specified in Federal Regulation 40 CFR 122.210)(5). The US EPA requires four (4) toxicity tests for a test organism other than the test species currently required in this permit. The multiple species tests should be conducted either quarterly for a 12-month period prior to submittal of the permit renewal application, or four tests performed at least annually in the four and one half year period prior to the application. These tests shall be performed for acute or chronic toxicity, whichever is specified in this permit. The multiple species toxicity test results shall be filed with the Aquatic Toxicology Branch at the following address: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Or, results can be sent to the email, ATForms.ATB@ncdenr.gov. Contact the Divisions Aquatic Toxicology Branch at 919-743-8401 for guidance on conducting the additional toxicity tests and reporting requirements. Results should also be summarized in Part E (Toxicity Testing Data) of EPA Municipal Application Form 2A, when submitting the permit renewal application to the NPDES Permitting Unit. A.(9.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S.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)] 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 Page 12 of 16 Permit NC0069311 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 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 ATTENTION: 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: hops://www.federalre ig ster.gov/documents/2015/10/22/2015-24954/national-vollutant- discharge-elimination-system-npdes-electronic-reporting rule Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. Page 13 of 16 Permit NC0069311 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: hft://deg.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 I1, 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 Carolinas eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following web page: ht!p://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.)] 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 14 of 16 Permit NCO069311 A.(10.) MERCURY MINIMIZATION PLAN [G.S. 143-215.1(b)] The Permittee shall continue implementing the mercury minimization plan during this permit term. The MMP should place emphasis on identification of mercury contributors and goals for reduction. Results shall be summarized and submitted with the next permit renewal. Performance of the Mercury Minimization Plan will meet the requirements of the TMDL (Total Maximum Daily Load) for mercury approved by USEPA on October 12, 2012, unless and until a Waste Load Allocation specific to this facility is developed and this NPDES permit is amended to require further actions to address the Waste Load Allocation. Page 15 of 16 Permit NCO069311 i I t 1 i t _- Outfall001 \ r \ 1 I Y . / J / f t Franklin County WWTP Receiving Stream: Cedar Creek Stream pass: C-NSW Permitted Flow: 2.0/3.0 MGD Drainage Basin: Tar -Pamlico River Basin Sub -Basin: 03-03-01 Latitude: 369 04' 12" N State Grid: Franklinton Longitude: 78925'01" W Page 16 of 16 Facility Location (not to scale) N M c NPDES Permit NCO069311- Franklin County