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HomeMy WebLinkAboutNC0039594_Draft Permit_20210420ROY COOPER Governor DIONNE DELLI-GATTI Secretary S. DANIEL SMITH Director Mr. Todd Herms, Town Manager Town of Maiden 19 N. Main Avenue Maiden, North Carolina 28650 Dear Mr. Herms: NORTH CAROLINA Environmental Quality April 20, 2021 Subject: Draft NPDES Permit Renewal Permit NC0039594 Maiden WWTP Catawba County Grade III Biological WPCS 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: • Per the 2019 Inspection Report, the facility components list has been revised to remove the blowers from the SBR listing [See Supplement to Cover]. • Based on DWR Instream Conductivity Monitoring Guidance, the facility discharges 100% domestic wastewater so instream conductivity monitoring has been removed from the permit [See A.(1.)]. • Per 15A NCAC 02B .0508, the instream monitoring frequency for temperature and dissolved oxygen has been revised [See A.(1.)]. • Language has been added to Footnote 2 to account for influent, effluent, upstream and downstream abbreviations [See A. (1.)]. • Some of the wording has changed in Special Condition A. (2.), Chronic Toxicity Permit Limit, please review each paragraph carefully. • Special Condition A. (4.) 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, 2nd species Toxicity Testing Requirements for municipal permit renewals per Federal Regulations [40 CFR 122.21(j)(5)] have been added. • A notation was made concerning the Electronic Reporting Rule — NPDES Electronic Reporting Rule — Phase 2 Extension. EPA extended the Phase 2 deadline to December 21, 2025. 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. NORTH DE Department of Envlrunmentel Quality North Carolina Department of Environmental Quality 1 Division of Water Resources 512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617 919.707.9000 Concurrent with this notification the Division is publishing a notice in a newspaper having circulation in the general Catawba 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. Sincerely, 71\y- e_, Nick Coco, Engineer NPDES Municipal Permitting Unit Hardcopy: NPDES Files Ecopy: US EPA Region 4 DWR/Mooresville Regional Office/Water Quality/Cory Basinger DWR/Operator Certification Program/Maureen Kinney DWR/Aquatic Toxicology Branch/Zach Thomas and Cindy Moore Town of Maiden/WWTP Superintendent/Tim Hedrick Page 2 of 2 Permit NC0039594 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 Town of Maiden is hereby authorized to discharge wastewater from a facility located at the Maiden Wastewater Treatment Plant 2090 W. Finger Street Ext. Maiden Catawba County to receiving waters designated as Clark Creek in the Catawba River Basin in accordance with the effluent limitations, monitoring requirements, and other applicable conditions set forth in Parts I, II, III, and IV hereof. This permit shall become effective Month xx, 2021. This permit and authorization to discharge shall expire at midnight on July 31, 2025. Signed this day Month xx, 2021. DRAFT for S. Daniel Smith, Director Division of Water Resources By Authority of the Environmental Management Commission Permit NC0039594 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. The Town of Maiden is hereby authorized to: 1. Continue to operate an existing 1.0 MGD wastewater treatment facility consisting of the following components: • Mechanical screening • Influent flow meter • Influent composite sampler • Grit removal • Influent collection sump • Influent transfer pumps • Two (2) 475,000 gallon SBR tanks with • One (1) 18,500 gallon equalization tank • Post equalization transfer pumps • Contact chamber with chlorination • Dechlorination 41% • Effluent meter • Effluent sample` circulation pump • Effluent composite sampler • Post equalization sludge trhsfer pu • Two (2) aerobic sludge digesters • Sludge collection sump • nudge load out pump • Stand-by power This facility is located at the Maiden WWTP, 2090 W. Finger Street Ext. in Maiden, Catawba County. 2. Discharge from said treatment works at the location specified on the attached map via Outfall 001 into Clark Creek, classified C waters in the Catawba River Basin. Page 2 of 11 Permit NC0039594 PART I A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [1.0 MGD] [15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade III Biological Water Pollution Control System [15A NCAC 08G .0302] a. During the period beginning on the effective date of the permit and lasting until permit expiration, the permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges shall be limited and monitored' by the permittee as specified below: PARAMETER Parameter Code EFFLUENT LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location2 Flow 50050 1.0 MGD Continuous Recording I or E BOD, 5 day, 20°C3 C0310 30.0 mg/L 45.0 mg/L 3/Week Composite I and E Total Suspended Solids3 C0530 30.0 mg/L 45.0 mg/L 3/Week Composite I and E Ammonia (NH3 as N) (April 1 October 31) C0610 7.0 mg/L 21.0 mg/L , 3/Week Composite E Ammonia (NH3 as N) C0610 (November 1 - March 31) 24.2 mg/L 35.0 mg/L 3/Week Composite E Fecal Coliform 31616 (geometric mean) 200/100 mL 400/100 mL 3/Week Grab E pH 00400 Between 6.0 and 9.0 Standard Units 3/Week Grab E Total Residual Chlorine4 50060 28 pg/L 3/Week Grab E Temperature, °C 00010 - Monitor and Report ' 3/Week Grab E Total Nitrogen, mg/L C0600 Monitor and Report Monthly Composite E Total Phosphorous, mg/L C0665 Monitor and Report Monthly Composite E Total Silver, lag/L 5 01042 Monitor and Report V Monthly Composite E Total Hardness [as CaCO3], mg/L5 00900 Monitor and Report Quarterly Composite E Chronic Toxicity6 TGP3B Monitor and Report Quarterly Composite E Effluent Pollutant Scan7 NC01 Monitor and Report Footnote 7 Footnote 7 E Dissolved Oxygen (mg/L) 00300 Monitor and Report Variablez Grab U and D Temperature °C 00010it._ Monitor and Report Variablez Grab U and D Total Hardness [as CaC , mg/L8 00900 Monitor and Report Quarterly Grab U Footnotes: 1. The permittee shall submit Dise Mom o Special Condition A.(4.). s electronically using NC DWR's eDMR application system. See 2. Sample locations I -Influent, E-Effluent, U-Upstream 100 feet above the outfall, D-Downstream at NCSR 1282. Upstream and downstream samples shall be grab samplekollected 3/week during June, July, August, and September and 1/week during the remainder of the year. 3. The monthly average effluent BOD5 anddotal Suspended Solids concentrations shall not exceed 15% of the respective influent value (85% removal). 4. The Di shall consider all effluent total residual chlorine values reported below 50 µg/L to be in compliance with the permit. er, the permittee shall continue to record and submit all values reported by a North Carolina certified laboratory ing field certified), even if these values fall below 50 µg/L. 5. Effluent hardn samplhould be performed in conjunction with testing for hardness dependent metals (cadmium, copper, lead, nickel, silv and zinc). 6. Chronic Toxicity (Ceriodaphnia dubia) P/F at 11% with testing in January, April, July and October. See Special Condition A.(2.). 7. The permittee shall perform three effluent pollution scans during the term of this permit. See Special Condition A.(3.). 8. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample shall be representative of the hardness in the receiving stream. b. There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 3 of 11 Permit NC0039594 A.(2.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) [15A NCAC 02B.0200] The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 11%. 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 Tox' ity Test Procedure" (Revised- December 2010) or subsequent versions. The tests will be perfor ring the months of January, April, July and October. These months signify the first month of ach t ee-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 NP S permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarty 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)4Ir subsequent verons. All toxicity testing results required as part of this permit condition will be entered electronically using the Division's eDMR system for the month in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3U for the Chronic Value. Additionally, DWR Form AT-3 (original) is to be sent to the following address: Attention: North Carolina Division of Water sources Water Sciences Section/ at' oxicology Branch 1621 Mail Service Cente Raleigh, NC 27699-1621 Or, results can be sent to the email, Forms.ATB@ncdenr.gov. Completed Aquatic&Toxicity Test Forms shall be fileirvith the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data s 1 be complete, accurate, include all supporting chemical/physical measurements and all concentr n/response data, and be certified by laboratory supervisor and ORC or approved designa signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for iisinfection 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 indicati report with the to the Water Scie e facility name, permit number, pipe number, county, and the month/year of the ion"No Flow" in the comment area of the form. The report shall be submitted tion at the address cited above Should the permittcVfail 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. Page 4 of 11 Permit NC0039594 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. 4\ Page 5 of 11 Permit NC0039594 A.(3.) EFFLUENT POLLUTANT SCAN (Municipal POTWs) [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 ev year]. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia (as N) Chlorine (total residual, TRC) Dissolved oxygen Nitrate / Nitrite Kjeldahl nitrogen Oil and grease Phosphorus Total dissolved solids Hardness Antimony Arsenic Beryllium Cadmium Chromium Copper Lead Mercury (Method 1631E) Nickel Selenium Silver Thallium Zinc Cyanide Total phenolic compounds Volatile organic compoun�s: Acrolein Acrylonitrile Benzene orm Car. u achloride Chloro Chlorodib .momethane Chloroethane 2-chloroethyl vinyl ether Chloroform Dichlorobromomethane 1,1-dichloroethane 1,2-dichloroethane e C0610 50060 00300 00630 00625 00556 C0665 70295 00900 01097 01002 01012 01027 C0034 01042 01051 COMER 34210 34215 4030 2104 2102 4301 34306 85811 34576 32106 32101 34496 32103 Trans-1,2-dichloroethylene 1,1-dichloroethylene 1,2-dichloropropane 1,3-dichloropropylene Ethylbenzene Methyl bromide Methyl chloride Methylene chlorid 1,1,2,2-tetrachloroethane Tetrachloroethylene Toluene 1,1,1-fichloroethane 1,1,2-trichloroethane Trichloroethylene Vinyl chloride Acid -extractable compounds: P-chloro-m-cresol 2-chlorophen 2,4-dichloroph 2,4-dimethylphe 4,6-dinitro-o-cres -24-dinitrophenol 2-nitrophenol 4-nitrophenol Pentachlorophenol -trichlorophenol ase-neutral compounds: Acenaphthene Acenaphthylene Anthracene Benzidine Benzo(a)anthracene Benzo(a)pyrene 3,4 benzofluoranthene Benzo(ghi)perylene Benzo(k)fluoranthene Bis (2-chloroethoxy) methane 34546 Bis (2-chloroethyl) ether 34501 Bis (2-chloroisopropyl) ether CO Bis (2-ethylhexyl) phthalate 4-bromophenyl phenyl ether Butyl benzyi late 34413 2-chloronapht 34418 4-chlorophenyl ph 34423 hrysene 1549 -butyl phthala 34475 Di-n-octyl phthalate 34010 Dibenzo(a,h)anthracene 34506 1,2-dichlorobenzene 34511 - hlorobenzene 39180 -dichlorobenzene 39175 ,3-dichlorobenzidine Diethyl phthalate 34452 Dimethyl phthalate 4E86 34601 34606 34657 34616 34591 34646 39032 34694 34621 34205 34200 CO220 39120 C0526 34247 34230 34521 34242 34278 2,4-dinitrotoluene 2,6-dinitrotoluene 1,2-diphenylhydrazine Fluoranthene Fluorene Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclo-pentadiene Hexachloroethane Indeno(1,2,3-cd)pyrene Isophorone Naphthalene Nitrobenzene N-nitrosodi-n-propylamine N-nitrosodimethylamine N-nitrosodiphenylamine Phenanthrene Pyrene 1,2,4-trichlorobenzene 34273 34283 C0100 34636 34292 34581 34641 34320 39110 34596 34556 34536 34566 34571 34631 34336 34341 34611 C0626 34346 C0376 34381 C0700 C0702 34386 34396 34403 34408 34696 34447 34428 34438 34433 34461 34469 C0551 b. Reporting. Test results shall be reported electronically using the Division's 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. Page 6 of 11 Permit NC0039594 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: NC DEQ/ DWR/ NPDES Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617. Or the form may be uploaded at: https://edocs.deq.nc.gov/Forms/NPDES WW-EDMR- Supplemental-Form d. Additional Toxicity Testing Requirements for Municipal Permit Renewa . 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 tl1s permit. The multiple species toxicity test results shall be filed with the Aquatic Toxicology Branch at the following address: North Carolina Divi ' in of Water ResourcM Water Sciences Secti. . tic Toxicology Branch 1621 Mail Service Cen Raleigh, North Carolin. 7699- Or, results can be se40 to the email, ATFo ..ATB@nc • r.gov. Contact the Division's Aquatic Toxicology anch at 919-743-8401 for guidance on conducting the additional toxicity tests d reporting requirements. Results should also be summarized in Part E (Toxitty Testing Da EPA Municipal Application Form 2A, when submitting the permit renewal application to the NPDES Permitting Unit. Page 7 of 11 Permit NC0039594 A.(4.) 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 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 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. Page 8 of 11 Permit NC0039594 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-regulatelities 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 appro to electronic reporting tool for each type of electronic submission and for each state. Instru s on how to access and use the appropriate electronic reporting tool will be available as rmation on EPA's NPDES Electronic Reporting Rule is found at: https://www.federalregister.gov/documents/2015/10/22/15-24954/national-pollutant- discharge-elimination-system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the sporting Requirements" section above. 3. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from ttie Division. To obtain an electronic reporting waiver, a permittee rhust first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers4must be submitted in writing to the Division for written approval at least sixty (600rdays prior to the date the facility would be required under this permit to begin submitting monitoring#Iata 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 aonew 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 approvreportingwiver request is effective. Information on eDMR and the aion for a temporary electronic reporting waiver are found on the f 1Q lowing web pag http: / / deq�gov/ abou� divisions/water-resources/ edmr 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. (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 Page 9 of 11 Permit NC0039594 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 epar 1 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. .)] The permittee shall retain records of all Discharg'Monitoring Repor s, including MR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41]. '. Page 10 of 11 Permit NC0039594 Town of Maiden Maiden WWTP NPDES Permit NC0039594 Stream Segment: 11-129-5-(0.3) River Basin: Catawba County: Catawba Receiving Stream: Clark Creek Stream Class: C Sub -Basin #: 03-08-35 HUC:0305010203 SCALE 1:24,000 Facility Location scale not shown 35.576389°,-81.240556° USGS Quad: Maiden Page 11 of 11