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Home My WebLink AboutNC0031879_Permit (Issuance)_20160328Permit NC0031879 Page 1 of 11 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, City of Marion is hereby authorized to discharge wastewater from a facility located at Corpening Creek WWTP 3982 Hwy 226 South Marion, NC McDowell County to receiving waters designated as Youngs Creek (Corpening Creek) in the Catawba 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 on May 1, 2016. This permit and authorization to discharge shall expire at midnight on January 31, 2020. Signed this day March 28, 2016. ORIGINAL SIGNED BY TOM BELNICK ________________________________________ S. Jay Zimmerman, P.G. Director, Division of Water Resources By Authority of the Environmental Management Commission Permit NC0031879 Page 2 of 11 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. City of Marion is hereby authorized to: 1. Continue to operate an existing 3.0 MGD wastewater treatment facility consisting of the following components:  Influent pump station  Bar screen  Grit removal  Primary clarifiers  Aeration basins  Secondary clarifiers  Gravity sludge thickeners  Chlorination  Dechlorination The facility is located at the Corpening Creek WWTP, 3982 Highway 226 South, Marion, McDowell County. 2. Discharge from said treatment works at the location specified on the attached map into Youngs Creek (Corpening Creek) which is classified C waters in the Catawba River Basin. Permit NC0031879 Page 3 of 11 A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of the permit and lasting until average annual flow exceeds 2.0 MGD or until expiration, the Permittee is authorized to discharge wastewater treatment plant effluent from outfall number 001. Such discharges shall be limited and monitored1 by the Permittee as specified below: PARAMETER LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location2 Flow 2.5 MGD Continuous Recording I or E BOD, 5 day, 20°C 3 30.0 mg/L 45.0 mg/L 3/Week Composite E, I Total Suspended Solids 3 30.0 mg/L 45.0 mg/L 3/Week Composite E, I NH3 as N (April 1-Oct. 31) 1.5 mg/L 4.4 mg/L 3/Week Composite E NH3 as N (Nov. 1-March 31) 3.3 mg/L 9.8 mg/L 3/Week Composite E Dissolved Oxygen Daily average not less than 5.0 mg/L 3/Week Grab E Fecal Coliform (geometric mean) 200/100 mL 400/100 mL 3/Week Grab E pH Between 6.0 and 9.0 SU 3/Week Grab E Total Residual Chlorine 4 27 µg/L 3/Week Grab E Temperature 3 /Week Grab E Total Nitrogen (mg/l) Monthly Composite E Total Phosphorus (mg/l) Monthly Composite E Total Cyanide 8.0 µg/L 33.0 µg/L Monthly Grab E Total Copper (µg/L) Quarterly Composite E Total Zinc (µg/L) Quarterly Composite E Chronic Toxicity 5 Quarterly Composite E Effluent Pollutant Scan Monitor and Report Footnote 6 Footnote 6 E Dissolved Oxygen Footnote 2 Grab U, D Temperature (°C) Footnote 2 Grab U,D Notes: 1. Effective December 16, 2016, begin submitting discharge monitoring reports electronically using NC DEQ’s eDMR application system. See Special Condition A. (5). 2. Sample locations: E - Effluent, I – Influent, U - Upstream 100 ft, D - Downstream at NCSR 1794 (Clinchfield Road). Upstream and downstream monitoring shall be grab samples and shall be conducted 3/week during June, July, August, and September and 1/week during the rest of the year. 3. The monthly average BOD5 and TSS concentrations shall not exceed 15% of the respective influent value (85% removal). 4. The Division shall consider all effluent TRC values reported below 50 μg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory even if these values fall below 50 μg/L. 5. Chronic Toxicity (Ceriodaphnia) P/F at 63%; February, May, August, and November. See Special Condition A (3). 6. The permittee shall perform three Effluent Pollutant Scans during the term of this permit. See Special Condition A. (4). Permit NC0031879 Page 4 of 11 There shall be no discharge of floating solids or foam visible in other than trace amounts. A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning when annual average flow exceeds 2.0 MGD and lasting until expiration, the Permittee is authorized to discharge wastewater treatment plant effluent from outfall number 001. Such discharges shall be limited and monitored by the Permittee as specified below: PARAMETER LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location1 Flow 3.0 MGD Continuous Recording I or E BOD, 5 day, 20°C 2 30.0 mg/L 45.0 mg/L Daily Composite E, I Total Suspended Solids 2 30.0 mg/L 45.0 mg/L Daily Composite E, I NH3 as N (April 1-Oct. 31) 1.4 mg/L 4.2 mg/L Daily Composite E NH3 as N (Nov. 1-March 31) 3.0 mg/L 9.0 mg/L Daily Composite E Dissolved Oxygen Daily average not less than 5.0 mg/L Daily Grab E Fecal Coliform (geometric mean) 200/100 mL 400/100 mL Daily Grab E pH Between 6.0 and 9.0 SU Daily Grab E Total Residual Chlorine 3 25 µg/L Daily Grab E Temperature (°C) Daily Grab E Total Nitrogen (mg/l) Monthly Composite E Total Phosphorus (mg/l) Monthly Composite E Total Cyanide 7.5 µg/L 31.1 µg/L Monthly Grab E Total Copper (µg/L) Quarterly Composite E Total Zinc (µg/L) Quarterly Composite E Chronic Toxicity 4 Quarterly Composite E Effluent Pollutant Scan Monitor and Report Footnote 5 Footnote 5 E Dissolved Oxygen Footnote 2 Grab U, D Temperature (°C) Footnote 2 Grab U,D Notes: 1. Sample locations: E - Effluent, I – Influent, U - Upstream 100 ft, D - Downstream at NCSR 1794 (Clinchfield Road). Upstream and downstream monitoring shall be grab samples and shall be conducted 3/week during June, July, August, and September and 1/week during the rest of the year. 2. The monthly average BOD5 and TSS concentrations shall not exceed 15% of the respective influent value (85% removal). 3. The Division shall consider all effluent TRC values reported below 50 μg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory even if these values fall below 50 μg/L. 4. Chronic Toxicity (Ceriodaphnia) P/F at 67%; February, May, August, and November. See Special Condition A (3). Permit NC0031879 Page 5 of 11 5. The permittee shall perform three Effluent Pollutant Scans during the term of this permit. See Special Condition A. (4). There shall be no discharge of floating solids or foam visible in other than trace amounts. A. (3) CHRONIC TOXICITY PASS/FAIL 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 63% (2.5 MGD) or 67 % (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 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 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 1623 Mail Service Center Raleigh, North Carolina 27699-1623 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 Permit NC0031879 Page 6 of 11 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. Permit NC0031879 Page 7 of 11 A. (4) EFFLUENT POLLUTANT SCAN [G.S. 143215.1(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: 2016, 2017, and 2018. 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) Trans-1,2-dichloroethylene Bis (2-chloroethyl) ether Chlorine (total residual, TRC) 1,1-dichloroethylene Bis (2-chloroisopropyl) ether Dissolved oxygen 1,2-dichloropropane Bis (2-ethylhexyl) phthalate Nitrate/Nitrite 1,3-dichloropropylene 4-bromophenyl phenyl ether Kjeldahl nitrogen Ethylbenzene Butyl benzyl phthalate Oil and grease Methyl bromide 2-chloronaphthalene Phosphorus Methyl chloride 4-chlorophenyl phenyl ether Total dissolved solids Methylene chloride Chrysene Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate Antimony Tetrachloroethylene Di-n-octyl phthalate Arsenic Toluene Dibenzo(a,h)anthracene Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene Chromium Trichloroethylene 1,4-dichlorobenzene Copper Vinyl chloride 3,3-dichlorobenzidine Lead Acid-extractable compounds: Diethyl phthalate Mercury (EPA Method 1631E) P-chloro-m-cresol Dimethyl phthalate Nickel 2-chlorophenol 2,4-dinitrotoluene Selenium 2,4-dichlorophenol 2,6-dinitrotoluene Silver 2,4-dimethylphenol 1,2-diphenylhydrazine Thallium 4,6-dinitro-o-cresol Fluoranthene Zinc 2,4-dinitrophenol Fluorene Cyanide 2-nitrophenol Hexachlorobenzene Total phenolic compounds 4-nitrophenol Hexachlorobutadiene Volatile organic compounds: Pentachlorophenol Hexachlorocyclo-pentadiene Acrolein Phenol Hexachloroethane Acrylonitrile 2,4,6-trichlorophenol Indeno(1,2,3-cd)pyrene Benzene Base-neutral compounds: Isophorone Bromoform Acenaphthene Naphthalene Carbon tetrachloride Acenaphthylene Nitrobenzene Chlorobenzene Anthracene N-nitrosodi-n-propylamine Chlorodibromomethane Benzidine N-nitrosodimethylamine Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine 2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene Chloroform 3,4 benzofluoranthene Pyrene Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobenzene 1,1-dichloroethane Benzo(k)fluoranthene 1,2-dichloroethane Bis (2-chloroethoxy) methane 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. Permit NC0031879 Page 8 of 11 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 122.21(j)(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 1623 Mail Service Center Raleigh, North Carolina 27699-1623 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. A. (5) 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 and specify that, if a state does not establish a system to receive such submittals, then permittees must submit monitoring data and reports electronically to the Environmental Protection Agency (EPA). 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)] Effective December 21, 2016, the permittee shall report discharge monitoring data electronically using the NC DWR’s Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. Until such time that the state’s eDMR application is compliant with EPA’s Cross-Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR to the following address: NC DENR / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Permit NC0031879 Page 9 of 11 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: http://www2.epa.gov/compliance/final-national-pollutant-discharge-elimination-system-npdes-electronic- reporting-rule. Electronic submissions must start by the dates listed in the “Reporting Requirements” section above. 3. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Permit NC0031879 Page 10 of 11 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://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]. A. (6 ) MERCURY MINIMIZATION PLAN The permittee will develop and implement a mercury minimization plan during the term of this permit. The MMP shall be developed 180 days from the effective day of the permit, and shall be available for inspection on-site. A sample MMP was developed through a stakeholder review process and has been placed on the Division website for guidance (http://portal.ncdenr.org/web/wq/swp/ps/npdes, under Mercury Minimization Plan). 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. Permit NC0031879 Page 11 of 11 Latitude: 35°39’04” Sub-Basin: 03-08-30 Longitude: 081°57’29” 8-Digit HUC: 03050101 Quad #: Marin East Permitted Flow: 2.5/3.0 MGD Receiving Stream: Youngs Fork Stream Class: C NPDES Permit No. NC0031879 Town of Marion – McDowell County x Facility Location (not to scale) N Outfall 001 US 40