Loading...
HomeMy WebLinkAboutNC0069841_Draft Permit_20171214Water Resources Environmental Quality December 14, 2017 Mike Moler Water and Wastewater Operations Division Manager Union County 500 North Main Street, Suite 500 Monroe, NC 28112-4730 Dear Mr. Moler: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director Subject: Draft NPDES Permit Renewal Permit NCO069841 Crooked Creek WWTP #2, Class 3 Union County SIC Code 4952 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: • Instream monitoring for Conductivity has been removed based on State guidance provided on April 22, 2002, that recommends removal from all 100% domestic wastewater permits. Your facility treats 100% domestic wastewater according to your permit application. • Limits for Ammonia -Nitrogen (NH3-N) have been reduced based on a wasteload allocation calculation using EPA criteria and State guidance provided on July 22, 2016. The proposed changes are tabulated below: Existing Proposed Summer Winter Summer Winter Monthly Average 2.0 mg/L4.0 mg/L 1.0 mg/L 1.9 mg/L Weekly Average 6.0 mg/L 12.0 mg/L 3.0 mg/L 5.7 mg/L To allow time and actions toward meeting the new NH3-N limits, a 4 -year compliance schedule has been added to the permit with annual milestones. [See Section A. (5.).] =`'Nothing Compares+._ - State of North Carolina I Environmental Quality 1611 Mail Service Center I Raleigh, North Carolina 27699-1611 919-707-9000 • Section A. (1.) Effluent Limitations and Monitoring Requirements sheet was split into separate Interim and Final limitations and monitoring requirements sheets [as Sections A. (1.) and A. (2.), respectively] to address the reduced NH3-N limits and 4 -year compliance schedule. The interim sheet contains existing NH3-N limits to be in effect until completion of the compliance schedule, no more than four years after the effective date of the permit. The final sheet contains NH3-N limits effective at completion of the compliance schedule, lasting through permit expiration. • 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 each facility monitoring these metals in order to calculate permit limitations. Effluent hardness sampling has been added to this permit at a quarterly monitoring frequency. [See Sections A. (1.) and A. (2.) Effluent Limitations and Monitoring Requirements.] • Monitoring for Total Copper has been removed from the permit, based on results of a reasonable potential analysis. No reasonable potential to exceed the water quality standard was found, and the predicted maximum concentration was found to be less than 50% of its allowable concentration. • Review of submitted effluent found seven non -detects of Total Silver (two at < 10 µg/L and five at < 5 µg/L). In accordance with 15A NCAC 2B .0500, 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 of lower reporting level of the procedure. Currently, DWR's laboratory identifies the PQL for Total Silver at < 1 pg/L. The allowable discharge concentration for your facility is 0.06 gg/L Total Silver. Therefore, the best your facility can do is to sample for Total Silver down to the lower reporting level of the procedure, which is < 1 gg/L. Quarterly monitoring for Total Silver has been added to the permit, for which shall be analyzed down to < 1.0 µg/L. The Permittee should implement "clean" sampling techniques and have silver analyzed down to the recommended PQL of < 1 µg/L. If these measures do not result in silver concentrations consistently less than the PQL of 1 gg/L, limits will be added to the permit during the next renewal. • Monthly monitoring of Total Zinc has been removed from the permit. A review of effluent data found no reasonable potential to exceed water quality standards, and the predicted maximum concentration was found to be less than 50% of its allowable concentration. Page 2 of 4 • Frequency of the Effluent Pollutant Scans have been reduced from annually to three years within the permit term per 40 CFR 122. Effluent Pollutant Scans shall be sampled in years 2019, 2020 and 2021. [See Section A. (4.).] 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 Section A. (6.).] For information on eDMR, registering for eDMR and obtaining an eDMR user account, please visit the following web page: http://deq.nc.gov/about/divisions/water- resources/edmr. For more information on EPA's final NPDES Electronic Reporting Rule, please visit the following web site: https://www.federalregister.gov/documents/2015/10/22/2015- 24954/national-pollutant-discharge-elimination-system-npdes-electronic-reporting-rule. Please note, in accordance with 15A NCAC 02B .0500, all test procedures must produce detection and reporting levels below the permit discharge limits, and all data must be reported to the approved detection level or lower reporting level of the procedure. Currently, the Division's laboratory identifies the PQLs for Arsenic at 2 µg/L, Cadmium at 0.50 µg/L, Lead at 2 µg/L, and Selenium at 1 µg/L, plus PQLs several other parameters. Recommended PQLs can be found at https://files.nc.gov/ncdeq/Water%20Quality/Chemistry o20Lab/Operations/Microbiology%20an d%20Inorgamc%20Chemistry%20Branch/PQLInorganics20160829-Web Site.pdf. Effluent Pollutant Scans shall test and report down to the parameter's PQL. The NPDES Standard Conditions (Parts II, III, and IV) are not included with this draft. They can be found at the following link if you would like to review them in conjunction with this draft permit. http ://ncdenr. s 3 . amazonaws. com/s3 fs- public/Water%20Quality/Surface%20Water%20Protection/NPDES/MISC/NPDES%20Standard %20Conditions-Boilerplate-DWR-SWP-NPDES-20150410.pdf Also, please note that the receiving stream is listed as impaired for Benthos (freshwater benthic aquatic life) on the North Carolina 2014 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. Concurrent with this notification the Division is publishing a notice in a newspaper having circulation in the general Union 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. Page 3 of 4 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) 807-6385 or by email at gary.perlmutter@ncdenr.gov. Sincerely, Gary Perlmutter, Environmental Senior Specialist NPDES Complex Permitting Unit Hardcopy: NPDES Files eCopy: DWR / Mooresville Regional Office / Water Quality Operations US EPA Region 4 DWR / Operator Certification Unit / Maureen Kinney DWR / Aquatic Toxicology Branch / Susan Meadows DWR / WSS / Ecosystems Branch / Mark Vander Bourgh Steve Tedder, Tedderfarm Consulting Dawn Padgett, Operations Manager — Charlotte Water O&M contract with UCPW Page 4 of 4 Pennit NC0069841 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 provision 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 Union County is hereby authorized to discharge wastewater from a facility located at the Crooked Creek WWTP #2 4015 Sardis Church Road Monroe, NC 28110 Union County to receiving waters designated as North Fork Crooked Creek in the Yadkin Pee -Dee 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 Nllron li 1, 20xx. This permit and authorization to discharge shall expire at midnight on October 31, 2022. Signed this day Month 1, 2Oxx. Linda Culpepper, Interim Director Division of Water Resources By Authority of the Environmental Management Commission Su e16011=411.01 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. Union County is hereby authorized to: 1. Continue to operate an existing 1.9 MGD wastewater treatment system consisting of the following: ♦ Influent pump station with six pumps ♦ Mechanical bar screen ♦ Manual bar screen (back-up) ♦ Two oxidation ditches with six brush aerators ♦ Four secondary clarifiers ♦ Return and waste activated sludge pumping station ♦ Six tertiary sand filters ♦ UV disinfection system ♦ Two chlorine contact basins (optional) ♦ Dechlorination vault (optional) ♦ Cascade aeration ♦ Effluent pump station with three pumps ♦ Five aerobic digesters with 2.0 MG total capacity ♦ Standby generator The facility is located at the Crooked Creek Wastewater Treatment Plant #2, 4015 Sardis Church Road, Monroe, in Union County; 2. Discharge from said treatment works at the location specified on the attached map into North Fork Crooked Creek which is classified C waters in the Yadkin -Pee Dee River Basin. Page 2of14 Permit NCO069841 PART I A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.9 MGD, Interim Ammonia -N Limitations) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] a. During the period beginning on the effective date and lasting until four years after the effective date of this permit, the Permittee is authorized to discharge treated wastewater from Outfa11001. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location 2 Flow 1 9 MGD Continuous Recording Influent or Effluent BOD, 5 -day, 20°C (Summer April 1 through October 31) 3 5 0 m /L g 7 5 m /L g 3 / Week Composite P Influent and Effluent BOD, 5 -day, 20°C (Winter 3 November 1 through March 31) 10 0 mg/L 15 0 mg/L 3 / Week Composite Influent and Effluent Total Suspended Solids (TSS) 3 30 0 mg/L 45 0 mg/L 3 / Week Composite Influent and Effluent NH3 as N (Summer April 1 through October 31) 4 2 0 m /L g 6 0 m /L g 3 / Week Composite P Effluent NH3 as N (Winter November 1 through March 31) 4 4 0 m /L g 12 0 m /L g 3 / Week Composite P Effluent Dissolved Oxygen (DO) Daily Average >_ 6.0 mg/L 3 / Week Grab Effluent Fecal Coliform (geometric mean) 200/100 mL 400/100 mL 3 / Week Grab Effluent Total Residual Chlorine (TRC) 5 17 µg/L 1 28 µg/L 3 / Week Grab Effluent pH Between 6 0 and 9 0 Standard Units 3 / Week Grab Effluent Temperature (°C) Monitor and Report Daily Grab Effluent Total Nitrogen (mg/L) 6 Monitor and Report Monthly Calculated Effluent Total Phosphorus (mg/L) Monitor and Report Monthly Composite Effluent Total Hardness as [CaCO3 or (Ca + Mg)] (mg/L) 7 Monitor and Report P Quarter' y Composite P Effluent Total Silver (µg/L) 8 Monitor and Report Quarterly Composite Effluent Chronic Toxicity s Ceriodaphnia Pass/Fail at 90% Effluent Quarterly Composite Effluent Effluent Pollutant Scan Monitor and Report Footnote 10 Footnote 10 Effluent Temperature (°C) 2 Variable Grab Upstream, Downstream Dissolved Oxygen (mg/L) 2 Variable 2 Grab Upstream, Downstream Fecal Coliform (#/100 mL) 2 Variable 2 Grab Upstream, Downstream All footnotes are listed on the following page. Page 3 of 14 Pe=t NC0069841 Footnotes 1 Submit discharge monitoring reports electronically using NC DWR's eDMR application system See Section A (6 ) 2 Upstream is at 50 feet from the outfall, downstream is '/ mile below discharge and at SR 1514 Upstream and Downstream samples shall be grab samples. Instream samples shall be collected three times per week from June 1 through September 30 and once per week from October 1 through May 31 Instream monitoring is provisionally waived in light of the Permittee's participation in the Yadkin -Pee Dee River Basin Association. Instream momtormg will be immediately reinstated should the permittee end its participation in the Association 3 The monthly average effluent BODS and TSS concentrations shall not exceed 15% of the respective influent value (85% removal) 4 The facility shall follow the compliance schedule detailed in Section A (4 ) in order to achieve compliance with final ammoma-nitrogen limits within four years of the effective date of this permit [see Section A (2 )] 5. The facility shall monitor TRC when using chlorination for disinfection All effluent TRC values shall be reported by a NC certified laboratory (including field -certified) Effluent values below 50 µg/L shall be treated as zero for compliance purposes 6 Total Nitrogen = TKN + NO3-N + NO2-N, where TKN is Total Kjeldahl Nitrogen, NO3-N is Nitrate Nitrogen, and NOz- N is Nitrite Nitrogen 7 Effluent Total Hardness sampling should be performed in conjunction with testing for hardness -dependent metals (cadmium, copper, lead, nickel, silver, and zinc) 8 Total Silver shall be reported to the lower detection level, < PQL The Permittee should review and implement clean sampling techniques for Total Silver The reporting laboratory should test to the lower reporting level of the procedure, which is < 1 gg/L for Total Silver. 9 Whole Effluent Toxicity samples shall be taken in February, May, August and November See Section A (3 ) 10 The Permittee shall perform three Effluent Pollutant Scans during the term of this permit See Section A (4 ) b. There shall be no discharge of floating solids or visible foam in other than trace amounts Page 4of14 Permit NCO069841 PART I A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (1.9 MGD, Interim Ammonia -N Limitations) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] a. During the period beginning on the effective date and lasting until four years after the effective date of this permit, the Permittee is authorized to discharge treated wastewater from Outfa11001. Such discharges shall be limited and monitored' by the Permittee as specified below: All footnotes are listed on the following page. Page 3of14 LIMITS MONITORING REQUIREMENTS EFFLUENT Monthly Weekly Daily Measurement Sample Sample Location 2 CHARACTERISTICS Average Average Maximum Frequency Type Flow 1 9 MGD Continuous Recording Influent or Effluent BOD, 5 -day, 20°C (Summer 5 0 m /L g 7 5 m /L 9 3 / Week Composite P Influent and Effluent April 1 through October 31) 3 BOD, 5 -day, 20°C (Winter November 1 through March 31) 3 10 0 mg/L 15 0 mg/L 3 / Week Composite Influent and Effluent Total Suspended Solids (TSS) 3 30 0 mg/L 45 0 mg/L 3 / Week Composite Influent and Effluent NH3 as N (Summer April 1 2 0 m /L g 6 0 m /L g 3 / Week Composite P Effluent through October 31) 4 NH3 as N (Winter November 1 4 0 m /L g 12.0 m /L g 3 /Week Composite P Effluent through March 31) 4 Dissolved Oxygen (DO) Daily Average >_ 6.0 mg/L 3 / Week Grab Effluent Fecal Coliform (geometric mean) 200/100 mL 400/100 mL 3 / Week Grab Effluent Total Residual Chlorine (TRC) e 17 µg/L 28 µg/L 3 / Week Grab Effluent pH Between 6 0 and 9 0 Standard Units 3 / Week Grab Effluent Temperature (°C) Monitor and Report Daily Grab Effluent Total Nitrogen (mg/L) 6 Monitor and Report Monthly Calculated Effluent Total Phosphorus (mg/L) Monitor and Report Monthly Composite Effluent Total Hardness as [CaCO3 or Monitor and Report P Quarter/ Y Composite P Effluent (Ca + M9)] (mg/L)' Total Silver (µg/L) 8 Monitor and Report Quarterly Composite Effluent Chronic Toxicity Cerrodaphn►a Pass/Fad at 90% Effluent Quarterly Composite Effluent Effluent Pollutant Scan Monitor and Report Footnote 10 Footnote 10 Effluent Temperature (°C) 2 Variable Grab Upstream, Downstream Dissolved Oxygen (mg/L) 2 Variable 2 Grab Upstream, Downstream Fecal Coliform (#/100 mL) 2 Variable 2 Grab Upstream, Downstream All footnotes are listed on the following page. Page 3of14 Permit NC0069841 Footnotes 1. Submit discharge monitoring reports electronically using NC DWR's eDMR application system See Section A (6 ). 2 Upstream is at 50 feet from the outfall, downstream is % mile below discharge and at SR 1514 Upstream and Downstream samples shall be grab samples Instream samples shall be collected three times per week from June 1 through September 30 and once per week from October 1 through May 31. Instream monitoring is provisionally waived in light of the Permittee's participation in the Yadkm-Pee Dee River Basin Association Instream monitoring will be immediately reinstated should the permittee end its participation in the Association 3 The monthly average effluent BODS and TSS concentrations shall not exceed 15% of the respective influent value (85% removal) 4 The facility shall follow the compliance schedule detailed in Section A (4.) in order to achieve compliance with final ammoma-mtrogen limits within four years of the effective date of flus permit [see Section A (2 )] 5. The facility shall monitor TRC when using chlorination for disinfection. All effluent TRC values shall be reported by a NC certified laboratory (including field -certified) Effluent values below 50 gg/L shall be treated as zero for compliance purposes 6 Total Nitrogen = TKN + NO3-N + NO2-N, where TKN is Total Kjeldahl Nitrogen, NO3-N is Nitrate Nitrogen, and NO2- N is Nitnte Nitrogen 7 Effluent Total Hardness sampling should be performed in conjunction with testing for hardness -dependent metals (cadmium, copper, lead, nickel, silver, and zinc) 8 Total Silver shall be reported to the lower detection level, < PQL The Permittee should review and implement clean sampling techniques for Total Silver The reporting laboratory should test to the lower reporting level of the procedure, which is < 1 gg/L for Total Silver 9 Whole Effluent Toxicity samples shall be taken in February, May, August and November. See Section A (3 ) 10 The Permttee shall perform three Effluent Pollutant Scans during the tern of this permit See Section A (4.) b. There shall be no discharge of floating solids or visible foam in other than trace amounts Page 4 of 14 Permit NCO069841 A.(3.) 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 90%. 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 February, May, August and November. 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 Chronic Value (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 on the Effluent Discharge Monitoring Form (MR -1) 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, NC 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the ead 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. r ` 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. Page 7of14 Permit NC0069841 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 8of14 Permit NCO069841 A.(4.) EFFLUENT POLLUTANT SCAN (Municipal POTWs) [G.S. 143-215.1(b)] 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: 2019, 2020, and 2021. 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) Chlorine (total residual, TRC) Dissolved Oxygen Nitrate/Nitrite Kjeldahl Nitrogen (TKN) Oil and Grease Phosphorus Total Dissolved Solids Hardness Antimony Arsenic Beryllium Cadmium Chromium Copper Lead Mercury (EPA Method 1631E) Nickel Selenium Silver Thallium Zinc Cyanide Total Phenolic Compounds Volatile organic compounds: Acrolem Acrylomtnle Benzene Bromoform Carbon tetrachloride Chlorobenzene Chlorodibromomethane Chloroethane 2-chloroethylvinyl ether Chloroform Dichlorobromomethane 1, 1 -dichloroethane 1,2-dichloroethane Trans-1,2-dichloroethylene 1,1-dichloroethylene 1,2-dichloropropane 1,3-dichloropropylene Ethylbenzene - Methyl bromide Methyl chloride Methylene chloride 1,1,2,2 -tetrachloroethane' Tetrachloroethylene Toluene 1, 1, 1 -tnchloroethane 1,1,2 -trichloroethane Trichloroethylene Vinyl chloride Acid -extractable compounds: P -chloro -m -cresol 2 -chlorophenol 2,4-dichlorophenol 2,4 -dimethylphenol 4,6-dimtro-o-cresol 2,4-dinitrophenol 2-mtrophenol 4-mtrophenol Pentachlorophenol Phenol 2,4, 6-tnchlorophenol Base -neutral compounds: Acenaphthene Acenaphthylene Anthracene Benzidme Benzo(a)anthracene Benzo(a)pyrene 3,4 benzofluoranthene Benzo(ghi)perylene Benzo(k)fluoranthene Bis (2-chloroethoxy) methane Page 9of14 Bis (2-chloroethyl) ether Bis (2-chloroisopropyl) ether Bis (2-ethylhexyl) phthalate 4-bromophenyl phenyl ether Butyl benzyl phthalate 2-chloronaphthalene 4-chlorophenyl phenyl ether Chrysene Di -n -butyl phthalate Di-n-octyl phthalate Dibenzo(a,h)anthracene 1,2 -dichlorobenzene 1,3 -dichlorobenzene 1,4 -dichlorobenzene 3,3-dichlorobenzidine Diethyl phthalate Dimethyl phthalate 2,4-dimtrotoluene 2,6-dimtrotoluene 1,2-diphenylhydrazine Fluoranthene Fluorene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclo-pentadiene Hexachloroethane Indeno(1,2,3-cd)pyrene Isophorone Naphthalene Nitrobenzene N-nitrosodi-n-propylamine N-mtrosodimethylamme N-mtrosodiphenylamine Phenanthrene Pyrene 1,2,4-tnchlorobenzene Permit NCO069841 Reporting. Test results shall be reported on DWR Form -A MR-PPA1 (or in a form approved by the Director) by December 31St of each designated sampling year. The report shall be submitted to the following address: NC DEQ / DWR / Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617. 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 Contact the Division's 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. Page 10 of 14 Permit NCO069841 A. (5.) SCHEDULE OF COMPLIANCE FOR AMMONIA -NITROGEN LIMITATIONS [G.S. 143-215.1(b)] 1. Within one (1) year from the effective day of the permit, the Permittee shall submit to the Division of Water Resources a Corrective Action Plan summarizing the strategy or actions to be taken to achieve compliance with the Ammonia -Nitrogen (NH3-N) limitations listed in Section A. (1), which includes specific dates for completion or implementation of each action. 2. Within two (2) years from the effective date of the permit, the Permittee shall submit a report to the Division summarizing actions taken in accordance with the Corrective Action Plan. 3. Within three (3) years from the effective date of the permit, the Permittee shall submit a report to the Division summarizing actions taken in accordance with the Corrective Action Plan. 4. The Permittee shall achieve compliance with NH3-N limitations specified in Section A. (2.) within four (4) years of the effective date of this permit. [give specific date in final permit]. Upon approval of the Corrective Action Plan by the Division, the report and actions become an enforceable part of this permit. Any modifications to the schedule shall be requested to the Division at least ninety (90) days before the deadline. Modifications to the schedule in excess of four (4) months will be subject to public notice. Page 11 of 14 Permit NCO069841 A.(6.) ELECTRONIC REPORTING OF 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 Section supplements or supersedes the following sections within Part I1 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 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 DEQ / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an" area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES 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 12 of 14 Permit NC0069841 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.federalre ig'ster.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge- elimination-systein-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 five (5) years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the Permittee re -applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http://deq.ne.gov/about/divisions/water-resources/edmr Page 13 of 14 Permit NC0069841 4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1 All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (I 1.)(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: hLp:Hdeq.nc.gov/about/divisions/water-resources/edmr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 1122.22]. 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 three (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 14 YPDRBA Station (upstream) J___, S - :,.�9838fiUti �� f I'` ^ • YPDRBA Station (downstream) r� ''' : f • v `rc- its � 1 `� �� �, . .' , l • �/; . 01386200 4 b I s• / A a YA OP ter• Outfall 001 4 f � 7 ' � Esc, .� � • _ _ 4 a t. aif J — J J f{ t Crooked Creek WWTP r- :515 �.4 • ` \,.'. - _ I •'� ' - � •� •0. i N•.. Copyright:g- =_ _ _ hiatioral Geographic Society. i -cubed ' �•'� Crooked Creek WWTP #2 - NCO069841 Facility Location • USGS Quad Names: Bakers Receiving Stream: N. Fork (Outfall), Matthews (Facility) Crooked Creek Lat.: 35°05'47' N Stream Class: C Union County Long.: 80°35'53" W Sub -basin: 03-07-12 NOYtl1 Map not to scale