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HomeMy WebLinkAboutNC0086819_Draft Permit_20241016Docusign Envelope ID: 5C74CD5B-30BB4671-9A54-577306C6C35D ROY COOPER Governor MARY PENNY KELLEY Secretary RICHARD E. ROGERS. JR. Director NORTH CAROLINA Environmental Quality October 14, 2024 Mr. Donald Dixon, Public Utilities Deputy Dir. Brunswick County PO Box 249 Bolivia, North Carolina 28422-0249 Subject: Second Draft NPDES Permit Renewal Permit NC0086819 Northeast Brunswick Regional WWTP Brunswick County Grade IV Biological WPCS SIC Code 4952 Dear Mr. Dixon: Additional staff review has identified some changes from the draft permit submitted for public comment on 8/22/2024. Review of the receiving stream classification found that, while the stream is designated as a Primary Nursery Area, it was not classified by the Environmental Management Commission as a High - Quality Water. During the 2017-2019 Triennial Review, it was determined that it was not the EMC's intention to include all PNAs as HQW automatically but would have each go through the EMC's rulemaking process to be classified as HQW. This revision to the rule was approved by the United States Environmental Protection Agency (USEPA) in April 2020. Changes to this rule do not affect existing toxicant limits (i.e., Total Copper and Total Zinc), but those newly added to the permit (Total Cyanide). Permit requirements have been reevaluated, resulting in changes and a second draft NPDES permit being submitted for public comment. Enclosed with this letter is a copy of the Second 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 and first draft permit, including the following: The following changes were made to the draft permit sent to you on August 20, 2024: • Based on a revised reasonable potential analysis (RPA) not including the High -Quality Water (HQW) buffer as HQWs do not automatically include all PNAs per recent revision by the Environmental Management Commissions showing reasonable potential to exceed revised water quality standards, Total Cyanide limits have been adjusted [See A.(1.)]. • For consistency with the Fact Sheet, language to allow a request to reduce PFAS monitoring after two years of data collection was added to Section A.(1.), Footnote 7. The final permit maintains the following significant changes identified in the letter sent on Month xx, 2020: • Upon completion of authorized construction in 2022, the NE Brunswick Regional W WTP entered the 4.975 MUD flow tier. As such, Effluent Limitations and Monitoring Requirements for the 2.475 MGD and 3.8 MGD flow tiers have been removed from the permit. ` North Carolina Depuwrnl of Environmental Quality I Division of Warm Raoosces D_E Q O 512 Noah Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611 " d ,�...am.a,� 919.707.9000 Docusign Envelope ID. 5C74CD5B-30BB-4671-9A54-577306C6C35D • The facility components list has been revised to reflect the changes made with the above completion of construction to 4.975 MGD flow [See Supplement to Cover Sheet]. • In the event that the facility uses chlorination for disinfection, a Total Residual Chlorine limit of 17 µg/L with daily monitoring has been added to the permit, to be effective when the Permittee uses chlorination [See A.(I.)]. • Based on the RPA predicting a maximum effluent Total Nickel concentration that is less than half of the allowable discharge concentration based on state water quality standards, Total Nickel limits and monitoring requirements have been removed from the permit [See A.(1)]. • Since the compliance dates for Copper and Zinc limits have taken effect and the RPA shown reasonable potential to violate state water quality standards with the same limits as in the current permit, the Schedule of Compliance special condition has been removed from the permit. • As a Cape Fear River Basin Model is currently being developed using existing data, the Cape Fear River Basin Nutrient Monitoring Reopener special condition has been removed from the permit. • To assess industrial contributions of PFAS chemicals to the NE Brunswick Regional WWTP and assess levels in the facility effluent, Special Condition A.(4.) has been added to the permit. • Some of the wording has changed in Special Condition A.(2.), Acute Toxicity Pass/Fail Permit Limit, please review each paragraph carefully. • Special Condition A.(3.) has been modified to include the specific three years in which the Effluent Pollutant Scan shall be performed (2026, 2027, and 2028). In addition, at the end of the Special Condition, 2°" species Toxicity Testing Requirements for municipal permit renewals per Federal Regulations [40 CFR 122.21OX5)] 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. • 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.(5.)]. • The facility map has been revised to show highway I-140 and the facility location. 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 httys://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 Brunswick 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) 707-3611 or by email at gary.perlmutter@deq.nc.gov. Sincerely, Ct)oeuSi•naa •r at, Pt.Yc>,ttv aEee oEuss... Gary Perlmutter, M.Sc., Environmental Specialist II NPDES Municipal Permitting Unit D_E Q J/ Nth Carolina Depwnent of Environmental Quality I Divisive of Weer Rewurcu O 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611 • . 919.707.9000 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Hardcopy: NPDES Files ecopy: US EPA Region 4 DWR / Wilmington Regional Office / Water Quality / Morella S. King DWR / Operator Certification Program / Jeff Talbot DWR / Ecosystems Branch / Tammy Hill DWR / Aquatic Toxicology Branch / Cindy Moore & Molly Nicholson DWR / Municipal Permitting Unit / Keyes McGee Brunswick County / Krysden Burden, Mathew Henry and John Nichols 11 D North Carolina Depemnent of Environmental Quality I Division of Water Resources 612 North Salisbury Street 11611 Mail Serviu Curter I Raleigh, North Carolina 27699-1611 �� 919707.9000 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NC0086819 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) �f / f In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the Nortbtaroliria.Environmental Management Commission, and the Federal Water Pollution Gontrol,Act, as amended, the is hereby authorized to discharge Northeast to receiving waters effluent limitations, IV hereof. This permit shall become This permit as Signed this day Montl�xx, 2024. unty Facility Fear River'in the Cape,Feaz River Basin in accordance with the ts, and other applicable conditions set forth in Parts I, II, III, and 1, at midnight on November 30, 2029. DRAFT Karen Preston, Municipal Unit Supervisor Division of Water Resources Page 1 of 17 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NC0086819 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. Brunswick County is hereby authorized to: 1. Continue to operate and maintain the Northeast Brunswick Regional W WTP, an existing 4.975 MGD facility consisting of the following components: ff 1/1 • Combined Headworks o (3) Rotating Drum Screens o (1) Conveying Auger \ o (1) Headcell Grit Vortex o (1) Grit Cleanse Dewatering Unit o (1) Influent Sampler ' • Combined 24" Tidalflux Mak FIow,Metet • Combined EQ Pump Station', o Three Submersible Pumps • Combined EO Svstem''. ) Jet or New EQ.Tank / !` (2)�Jet Pumps it '.(2) Blowers Headworks/EQ.Pump Station,Odor Control 1 Phase One 2.475 MGD • (1) Automated Flow Control Valve • (1) Influent Process Control Flow Meter • (1) Aerobic Selector/ �r o (3) Submersible Mixers • (3) Biodenipho Ditches "BRUSH AIR" o (6) Brush Aerators o (3) Submersible Mixers • (1) Flow Splitter Box • (3) Clarifiers • RAS WAS Pumping o (5) RAS Pumps o (3) WAS Pumps o (1) Caustic Pump "PH Control' • (4) Tertiary Disc Filters • (2) UV Trains Page 2 of 17 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NC0086819 o (2) Banks each • Parshall Flume • Cascade Aeration • Effluent/NPW Pump Station o (3) Effluent Submersible Pumps o (1) NPW Pump • ATAD Biosolids System o (1) Rotary Drum Thickener • Polymer Mixing System o (2) ATAD Feed Pumps o (2) ATAD Tanks consisting of each (8) Foam Controllers • (1) Center Mixer • (3) Spiral Aerators o (1) ATAD Odor Control o (4) ATAD Transfer Pumps o (2) Post ATAD Tanks • (2) Recirculating Pumps • (1)Blower `'\ • (1) Truck Loading Pump e • 1,000 KW Diesel Generator_. • (1) Automated Flow Control VaIVe • (1) Influent Process Control F1ow7P • (1) Aerobic�Selector�, o (3)YSubmers�bleMixers • (2) Biodenipho Ditches "JET AIR" o (4) Jet Pumps "J L-�— ®: RAS WAS Pumping,, ` o (3) RAS/WAS,Pumps' \( '*�(2) Caustic Pump "PH • (2) Tertiary Disc Filters • (2) UV Traihs, % _t Two - GD� �� • Cascade Aeration- ! • Effluent/NPW Pump Station o (3) Effluent Submersible Pumps o (2) NPW Pumps o (1) 20" TidalFlux Mag Flow Meter • ATAD Biosolids System o (2) Rotary Drum Thickeners with Floc Tanks • (2) Polymer Mixing Systems o (2) ATAD Feed Pumps o (2) ATAD Tanks consisting of each (4) Aerator/Foam Controllers (1) Center Mixer Page 3 of 17 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NC0086819 o (2) ATAD to ATAD Transfer Pumps o (2) ATAD to Post ATAD Transfer Pumps o (2) Post ATAD Tanks each with • (1) Recirculating Pump • (2) Blowers • (1) Truck Loading Pump o ATAD/POST ATAD Odor Control • 1,750 KW Diesel Generator 2. Discharge from said treatment works at the Cape Fear River, classified SC, Sw; PNA v m:speCified on t n`the Cape Fear Page 4 of 17 map via Outfall 001 into i and 03030005 HUC. Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NCO086819 PART A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [4.975 MGD] [15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade IV 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 municipal and industrial 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 Location-- Flow 50050 4.975 MGD ter' Continuous Recording I or E BOD, 5-day, 200C 3 C0310 (Apr I -Oct 31) 5.0 mg/L 7.5 mWL „t � '�, Daily Composite P I and E BOD, 5-day, 200C 3 C0310 (Nov 1 - Mar31) 10.0 m �' % 15.0 m B/L l �* Daily . Composite I and.E Total Suspended Solids (TSS) 3 C0530 10.0 mg/L\ a¢.0 mg/L ;l`, Daily Composite I and E Ammonia (Nib as N) (Apr I - Oct 31) C0610 1.0 mg/L \ '3.0 mg/LI} 'ti = Dail,,y's,* Composite E Ammonia (NH3 as N) (Nov 1 - Mar31) C0610 ` '- 2A mg/L 6.0 mg/L Daily Composite E Dissolved Oxygen (DO) 00300 �., '\ -Daily :Average ? 6.0'in9fl:.1 Daily Grab E Enterococci (geometric mean) 1616 35/100ml, -'*•. 276/100ml, Daily Grab E Total Residual Chlorine (TRC) °--50060,, \ ,,% ,.., . ' 17 µg/L-' Daily Grab E Temperature (°C) (: - ,, � 00010 `Monitor amd Report's } Daily Grab E pH 00400� } Between 6.8 and 8.5 Standard Units Daily Grab E Conductivity (µmhos/cm) .� \00094f i�-, Monitot and Report �i Daily Grab E Total Kjeldahl ti6gen'(TKN) 11 `' f� `V00625* �, ,. Monitor,andReport Monthly Composite E Nitrate+Nitrite (NO3-N+N021V)\ 3 (ml/L) t 'ts s 0063t1', � - i ,-' Monitor and Report Monthly Composite E Total Nitrogen (mg/L) \Cp600 �',Monitor and Report Monthly Calculated E Total Phosphorus.(mg/L) C066S `'s > Monitor and Report Monthly Composite E Total Copper '`� ,N 01042 i 1.8 µg/L 2.9 µg/L Monthly Composite E Total Cyanideb -`.� s 01257 i 1.0 µg/L 1.0 µg/L Monthly Grab E Total Nickel (µg/L) ,. \ C06651 Monitor and Report Quarterly Composite E Total Zinc `.�'' 01092 42.8 µg/L 47.6 µg/L Monthly Composite E PFAS 7 (ng/L.) '�_vorious Monitor and Report Quarterly 7 Grab E Acute Toxicity s TGP3B Monitor and Report Quarterly Composite E Effluent Pollutant Scan 9 NC01 Monitor and Report Footnote 9 Footnote 9 E Dissolved Oxygen (mg/L) 00300 Monitor and Report Variable' Grab U and D Temperature °C 00010 Monitor and Report Variable' Grab U and D Conductivity (µmhos/cm) 00094 Monitor and Report Variable' Grab U and D Footnotes: 1. The Permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A.(5.). Footnotes continued on next page. Page 5 of 17 Docusign Envelope ID: 5C74CD5B-30BB4671-9A54-577306C6C35D Permit NCO086819 Footnotes (continued). 2. Sample locations: I = Influent; E = Effluent; U = Upstream; D =Downstream. Upstream and downstream samples shall be grab samples collected 3/week during June, July, August, and September and 1/week during the remainder of the year. Instream sampling requirements are provisionally waived in light of the permittee's participation in the Lower Cape Fear River Program. Should participation in the association cease, all instream sampling requirements are immediately reinstated. 3. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of the respective influent value (85% removal). 4. The facility shall monitor TRC when using chlorination for disinfection. The Division shall consider all effluent total residual chlorine 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 (including field certified), even if these values fall below 50 µg/L. / ,/ 5. For a given wastewater sample, TN = TKN+NO3 N +NOz N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 6. Due to difficulties quantifying cyanide in a wastewater matrix t e Division shall consider all values reported below 10 µg/L to be "compliant" with the permit. However, the Permittee shall submit to DWRall values reported by a North Carolina -certified test method (even if values fall below 10 µg/L)`and'the Permittee shall consider all reported values when calculating averages, if any,4s required under the permit'\ 7. Follow Special Condition A.(4.). The Permittee may-regbest a monitoring frequency, reduction after two (2) years of data collection. \ /{ ) 8. Acute Toxicity (Fathead Minnow) P/Ffat 90% with to ting iri=Jan"uary; April, July and.Octobec See Special Condition A.(2.). 9. The Permittee shall perform three effl ent'pollution scans during filejeral of this permit. See Special Condition A.(3.)• \ 1\ -, `1 `m -I" (b.) There shall be no discharge of floating solids�or;visibllefoam in other than trace amounts. Page 6 of 17 Docusign Envelope ID: 5C74CD59-30BB4671-gA54-577306C6C35D Permit NC0086819 A.(2.) ACUTE TOXICITY PASSIFAIL PERMIT LIMIT (QUARTERLY) [I5A NCAC 02B .0200] [15A NCAC 02B .0500 et seq] The Permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodologyfor Determining Acute Toxicity In A Single Effluent Concentration" (Revised December 2010, or subsequent versions). The monitoring shall be performed as a Fathead Minnow (Pimephales promelos) 24-hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document). 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. Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single testis passed: Upon passing, this monthly test requirement will revert to quarterly in the months speciffied`above. , 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,itwas performed, using the parameter code TGE6C. Additionally, DWR Form AT-2 (original) is to be sentto,the following address: `ti °\ Or, results can be sent Completed Aquatic To} days after the end of the Test Total residua employed for North Carolina -Division of Watei Res6urces Water Sciences,Section/Aquatic Toxicology Branch 1621 Mail Service Centerr . \ Raleigh, NC 27699 J621``,, ' \ Test Forms shall be'fled4ith the Water Sciences Section no later than 30 reporting periodfor which thereport is made. Mete, accurate nclude`all supporting chemical/physical measurements and all iota, `and�be certified by -laboratory supervisor and ORC or approved designate \� of he`efflu t toxicity sample must be measured and reported if chlorine is n 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,nazne,.permit number, pipe number, county, and the month/year of the report with the notation of "No Flow't-iu 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, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. 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 7 of 17 Dowsign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NC0086819 Should any test data from either these monitoring requirements 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 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 8 of 17 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NCO086819 A.(3.) ADDITIONAL MONITORING REQUIREMENTS FOR PERMIT RENEWAL [NCGS 143-215.1(b.)] (a.) Effluent Pollutant Scans. 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: 2026, 2027, and 2028. 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. Each annual sample shall coincide with one quarterly toxicity test each year [see Condition A.(2.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT], and each must be collected in a different calendar quarter to 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 j (�-y ,\ 34501 Bis (2-chloroisopropyl) ether 34283 Dissolved oxygen 00300 1,2-dichloropropme �`• C0541 Bis (2-ethylhexyl) phthalate C0100 Nitrate/Nitrite 00630 1,3-dichloropropylene ,, \77163 4-bromophenyl phenyl ether 34636 Kjeldahl nitrogen 00625 Ethylbenzene ```.34j71 Butyl benzyl phthalate 34292 Od and grease 00556 Methyl.bmmide 344131 2-chloronaphthalene 34581 Phosphorus C0665 Methyl'chloride 34418', ''4-chlorophenyl phenyl ether 34641 Total dissolved solids 70295 Methylene chlori; 34423 �`Chrrysene 34320 Hardness 00900 1, 1,2,2-tetmchlorom ethe � 81549 Di-u-butyl phthalate 39110 Antimony 01097 � 'Tetrachloroethylene` i` 34475 Di-noctyl phthalate 34596 Arsenic 01001\ �-Tuit.ne ''.` \ 34010 Dibenzo(a,h)antracene 34556 Beryllium 01012 'h,1,1,1-trichloroetane \�`. 34506 1,2-dichlorobenzene 34536 Cadmium 01027 t 1,%2-trichloroethane �� �34511 1,3-dichlorobenzene 34566 Chromium CO034 Trichloroethyle`ne �- 39180 1,4-dichlorobenzene 34571 Copper —.,�1042 V nyl chloride /" `� 39175 3,3-dichlorobenzidine 34631 Lead ' f 01051\ Acid-extraMuble compounds: `` Diethyl phthalate 34336 Mercury (Method 1631E \' \ COd�R P-chloro=m-cresol 34431 Dimethyl phthalate 3434/ Nickel �,�'. 01067 ---2-chlorophe old 34586 2,4-dinitrotoluene 34611 Selenium!"\��01 47----,22,,,4-dichloropheu& 34601 2,6•dinitrotoluene C0626 Silver'- N 4 01077 2,4=dimethylphenol 34606 1,2-diphenylhydrazine 34346 Thallium` ` �'-� 001059-', 4,6-dinitr`oo cresol 34657 Flumanthene C0376 Zinc �`.,,'.� \ 01092,E\2,4-dinitrophenol 34616 Fluorene 34381 Cyanide `� \00720 112-nitrophenol 34591 Hexachlorobenzene C0700 Total phenolic compounds 32t730 4-nitrophenol 34646 Hexachlorobutadicne C0702 Volatile oreanie comoott ds: hi 1 Pentachlorophenol 39032 Hexachlorocyclo-pentadiene 34386 Acrolein \. 34110 > i Phenol 34694 Hexachloroethane 34396 \ Acrylonitrile \ N, J/ 3415 2,416-trichlorophenol 34621 Indeno(1,2,3-ed)pyrene 34403 Benzene \ /34030 Base -neutral compounds: Isophorone 34408 Bromofo n ��� 32104 Acenaphthene 34205 Naphthalene 34696 Carbon tetrachloride 32102 Acenaphthylene 34200 Nitrobenzene 34447 Chlorobenzene 34301 Antracene CO220 N-nitrosodi-n-propylamine 34428 Chlorodibromomethane 34306 Benzidine 39120 N-nitrosodimethylamine 34438 Chloroethane 85811 Benzo(a)anthmcene C0526 N-nitrosodiphenylamine 34433 2-chloroetryl vinyl ether 34576 Benzo(a)pyrene 34247 Phenanthrene 34461 Chloroform 32106 3,4 benzotluomnthene 34230 Pyrene 34469 Dichlorobromomethane 32101 Benzo(ghi)perylene 34521 1,2,4-trichlorobenzene C0551 1,1-dichloroethme 34496 Benzo(k)tuorantheo 34242 1,2-dichloroethane 32103 Bis(2-chloroethoxy) methane 34278 Page 9 of 17 Docuslgn Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NC0086819 (b.) Effluent Scan Reporting. Test results shall be reported electronically via eDMR by December 31 st of each designated sampling year, except that, subject to prior written approval by the Director, results can be reported on DWR Form DMR-PPA-1 or other form approved by the Director. The permittee must at least report completion of the test in the eDMR system by entering "1" or "Y" for parameter code NCO - Annual Pollutant Scan. If written reports are approved, the report shall be submitted to the following address: North Carolina Division of Water Resources Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Or the form may be uploaded at: https://edoes.deq.ne.gov/Forms/NPDES_W W-EDMR-Supplemental-Form (c.) 2°d-Species Toxicity Testing and Reporting. `\ (i.) In addition to the quarterly toxicity tests required in Conditidn,A.(2.) ACUTE TOXICITY PASSNAIL PERMIT LIMIT, the Permittee shall perform and report the results of four (4) toxicity tests using the same test methods using a second specie; 'gf'test organism suitable to the tests being conducted. I-_ (ii.) The 2"d species toxicity tests shall be conducted. either: ,I (A) Once per quarter in a'single 12-month period (foul' samples); if this option is chosen, the sample for each 2°d species test shall coincide :with the quarterly samples collected for A.(2.) ACUTE TOXICITY 'PASS/FAILPERMIT.LIMIT; or (B) Once per 12-month period''in the -four -and one -half -year period prior to the scheduled application for permit renewal (four samples); if this. op tion is chosen, three of the samples for the 2nd species test shall coincide with thosb for the annual effluent scans and the coincident quarterly toxicity test; and each of the four annual samples shall be collectcd.in a different calendar quarter in order f&fepresent seasonal variation. (iii.) The results of the toxicity tests shall be submitted to the following address: North Carolina Division of Water Resources Watei•Sciences Section/Aquatic Toxicology Branch 1621' Mail Service'Center Raleigh, North C&o.lina 27699-1621 Or, results can be sent'to the email, ATForms.ATB@deq.nc.gov. (iv.) Results of the 2"d species tests shall also be summarized in Part E (Toxicity Testing Data) of EPA Municipal.Application Form 2A when submitting the permit renewal application to the NPDES Wastewater'Program. The Permittee may contact the Division's Aquatic Toxicology Branch at 919-743-8401 for guidance on conducting the additional toxicity tests and reporting of the results. Page 10 of 17 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NCO086819 A.(4.) PFAS MONITORING REQUIREMENT AND PRETREATMENT [NCGS 143-215.1 (b)] (a.) In the absence of an approved 40 CFR Part 136 method published in Federal Register, influent and effluent PFAS monitoring shall be conducted. The Yd draft or more recent wastewater analytical method 1633 (see 40 CFR 122.21(e)(3)(ii) and 40 CFR 122.44(i)(1)(iv)(B)) shall be used and shall include all target analytes listed under Table 1 of the method until such time as the Permittee uses the approved PFAS Method for wastewater. Effective the first full calendar quarter following six (6) months after EPA publishes a 40 CFR Part 136 PFAS Method for wastewater in the Federal Register, influent and effluent PFAS monitoring shall be conducted using the approved EPA PFAS Method 1633. See Appendix A for list of analytes. (b.) Influent and effluent monitoring using the draft analytical method takes effect the first full calendar quarter following six (6) months after the effective date of the permit (May 1, 2025) and will be at a quarterly frequency thereafter. Z` Appendix A has been added to the permit to identify the current,analytes listed under Table 1 of Method 1633 Analysis of Per- and Polyfluoroalky`I Sbbstances (PFAS),in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS/MS (EPA,, January 2024) and the�app`ropriate ICIS codes for use when reporting in the electronic Discharge,Monitoring Reports (eDMRs):,­The method and list of analytes may also be found at: https://www.epa.gov/system/files/documents/2024*-01 /method-1633-final-for.web-posting.pdf HAS Monitoring using the Draft Method or January 2.024�Method 1633 shall be reported quarterly using the Division -provided subinittal,fo`rrm,Once PFAS, monitoring is conducted using the EPA Method 1633 in 40 CFR Part 136, data shall,be'reported in the monthly eDMRs. Please note that specific considerations'and protocols are required to,avoid cross -contamination and minimize sample,biasrfor-PFAS. A current listing oPlab ro atories accredited by the Perry Johnson Laboratory Accreditation, Inc. �(PJLA), ANSI National 'Accreditation Board (ANAB), or the American Association,for Laboratory Accreditation (A2LA) to perform EPA Method 1633 can be found by contacting the -individual -associations. Please note that different labs are accredited for .�_ % differeht matrices. Sampling and'Anal"vtical�Notes: ;,Sampling shall be planned s6that.required holding times for analytical methods are met. • U`sing one of the analytical Tall'oratories included above will allow consistency in analytical method -snot in anticipation of a final method. • "J" flag values shall be reported when the "J" flag value is associated with the method's upper bound. "J" flag,values need not be reported when less than the method's Minimum Reporting Level (listed in Method`1633). i • Laboratories approved'for Aqueous matrix may be utilized. Please note that the lab used does not have to be in North Carolina. Page 11 of 17 Docusign Envelope ID: 5C74CD5B-30BB4671-9A54-577306C6C35D Pemtit NC0086819 A.(5.) ELECTRONIC REPORTING - DISCHARGE MONITORING REPORTS [NCGS 143-215.1(b.)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit (Standard Conditions for NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) Reporting l • Section D. (6.) Records Retention • Section E. (5.) Monitoring Reports 1. Reporting Reauirements ISunersedes Section D't21 and SPPti nnX The Permittee shall report discharge monitoring data electronically usingthe NC DWR's Electronic Discharge Monitoring Report (eDMR) intemet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted monthly electronically using eDMR. The eDMR" system allows permitted, facilities to enter monitoring data and submit DMRs electronically using the intemet. 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 percentof the households have broadband access, then a temporary, waiver from the NPDES,electronic'reporting,requirements may be granted and discharge monitoring data may Ue submitted on,paper DMR forins,(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 Waiver4from Electronic Reporting" section below. Monitoring results obtained during the previous month(s) shall be summarized for each month and reported via the eDMR system no later than the last calendar day of the month following the completed reporting period. Regardless .67f 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; and Pretreatment Program Annual Reports; and Clean Water Act (CWA) Section 316(b) Annual Reports. Page 12 of 17 Docusign Envelope ID: 5C74CD58-30BB4671-9A54-577306C6C35D Permit NCO086819 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. 01 4. 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 ap type of electronic submission and for each state. Instruction"' electronic reporting tool will be available as well. Infonnath Rule is found at: �..' https://www.federairegister.gov/documents/20 Electronic submissions must start by the dates The permittee may seek a temporary electronic reporting waiver, a permittc Division. Requests for. temporary ele Division for written,approval atleast under this permit to begin submitting i shall not exceed S years`and shall ther submitted electronically'to the Divis temporary -electronic reporting,waiver transferrable. Only'pennittees with'an andireoorts on oauer to. the Division eDMR and following electronic reporting tool for each to access and use the appropriate 1's NPDES Electronic Reporting section above. Drting\waiver from the Division. To obtain an mit an electronic reporting waiver request to the g waivers must,.be submitted in writing to the pnor to,the date)the facility would be required aiid reports ,The duration of a temporary waiver t such time monitoring data and reports shall be permittee re -applies for and is granted a new i. Approved electronic reporting waivers are not ling waiver request may submit monitoring data 'that the approved reporting waiver request is a temporary electronic reporting waiver are found on the All eDMRs submitted tbthe'permit issuing authority shall be signed by a person described in Part II, Section B. (1 I.)(a) or by. a duly authorized representative of that person as described in Part It, Section B. (I 1.)(b). A person, and-nbt 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.ne.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: Page 13 of 17 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NCO086819 "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 far submitting false information, including the possibility of fines and imprisonment for knowing violations." 5. Records Retention ]Supplements Section D. (6.)1 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 leakt 3 years from the date of the report. This period may be extended by request of the Director at anyrtime°[40 CFR 122.41]. Page 14 of 17 Docusign Envelope ID: 5C74CD5B-30BB-4671-9A54-577306C6C35D Permit NCOO86819 1 -- �` - - - 76 h P ry h 30 h • F'dCIIIiY ROYSTER Rd NE gayster Outfa11001 Cedar Mill Rd 30 h 34h C, ar Ra NC0086819 -Brunswick County NE Brunswick Regional WRF Facility Location AIAWI W 16'15'H lime Gd: Leland Lg:'It'd,_ 78'WN' W M1mdttsdR , 4.975MM hwMUSn , Ca,,Pca RO r �rlift: Cape fear river S".0m; SC,Sw;HpW-PNA &AftNUC 0303M Brunswick County j OrIh7j Map not to 5cal2 Page 15 of 17 Docusign Envelope ID: 5C74CD5B-30BB4671-9A54-577306C6C35D Permit NCO086819 Appendix A. PFAS Target Analytes EPA Method 1633 (EPA, January 2024) Target Analyte Name Abbreviation CASNumber Parameter Code Perfluoroalkyl carboxylic acids Per luorobutanoic acid PFBA 375-22-4 51522 Perfluoropentanoic acid PFPeA 2706-90-3 51623 Perfluorohexanoic acid PFHxA 307-24-4 51624 Perfluoroheptanoic acid PFHpA • ,l 375-85-9 51625 Perfluorooctanoic acid PFOA r'• 335-67-1 51521 Perfluorononanoic acid, PFNA'-, 375-95-1 51626 Perfluorodecanoic acid PFDA ., 335-76-2 51627 Perfluoroundecanoic acid PFUnA % 2058-94-8 51628 Perfluorododecanoic acid - `* PFDoA_, 307-55-1 51629 Perfluorotridecanoic acid _ `PFTrbA,'' 72629-44;8'\ 51630 Perfluorotetradecanoic acid •PFTeDA 376-06-7 51531 Perfluoroalkyl sulfonic acids Perfluorobutanesulfonic acid_ ' , ,PFBS 375-73-5 52602 Perfluoropentanesulfonic acid- - - �, ;•PFPeS�-- 2706-91-4 52610 Perfluorohexanesulf6hic acid , • PFHxS'-j 355-46-4 52605 Perfluoroheptanesulfonic acid •. + \ PFHpS 375-92-8 52604 Perfluordoctanesulfonic acid ' . PFOS 1763-23-1 52606 Perfluororionanesulfonic acid. PFNS 68259-12-1 52611 Perfluorodecanesulfonic acid.` ^,'•.` •.` PFDS 335-77-3 52603 Pertluorododecanesulfonic acid ` '� `. PFDoS 79780-39-5 52632 Fluorotelomer sulfonic acids IH,1H,2H,2H-Perfluoro6exane sulfonic, ,acid 4:2FTS 757124-72.4 52607 1H,1H,2H,2H-Perfluorooctane sulfonic acid 6:2FTS 27619-97-2 52608 1H,1H,2H,2H-Perfluorodecane sulfonic acid 8:2FTS 39108-344 52609 Perfluorooctane sulfonamides Perfluorooctanesulfonamide PFOSA 754-91-6 51525 N-methyl perfluorooctanesulfonamide NMeFOSA 31506-32-8 52641 N-ethyl perfluorooctanesulfonamide NEtFOSA 4151-50-2 52642 I able continues on next page. Page 16 of 17 Docusign Envelope ID: 5C74CD5B-30BB4671-9A54-577306C6C35D Permit NCO086819 Table continued from Appendix A. PFAS Target Analytes EPA Method 1633 (EPA, January 2024). Target Analyte Name Abbreviation CASNumber Parameter Code Perfluornoctane sulfooamidoacetic acids N-methyl perfluorooctmesulfonamidoacetic acid NMeFOSAA 2355-31-9 51644 N-ethyl perfluorooctanesulfonamidoacetic acid NEtFOSAA 2991-50.6 51643 Perfluorooctane sulfonamide ethanols N-methyl perfluorooctmesulfonamidoethmol NMeFOSE 24448-09-7 51642 N-ethyl perfluorooetanesulfonamidoethmol NetFOSE 1691-99-2 51641 Per -.and Polyfluorother carboxylic acids Hexafluoropropylene oxide dinner acid BFPO.-DA 13252-13-6 52612 4,8-Dioxa-3H-perfluorononmoic acid 'ADONA 919005-14-4 52636 Perfluoro-3-metboxypropanoicacid PFMPA 377-73-1 PF002 Perlfuoro-4-methoxybutanoic acid PFM13A 963090-89-5 PF006 Nonafluoro-3,6-dioxaheptanoic acid NFDHA 151772-58.6 52626 Ether sulfonic acids 9-Chlorohexadecaflucro-3-oxmonane-l-sulfonic acid 9C1-PF30NS 756426-58-1 PF003 11-Chloroeicosafluoro-3-oxamdecme-l-sulfonic acid 11C1-PF3OUdS 763051-92-9 PF004 Perfluoro(2-ethoxyethane)mlfonic acid PFEESA 113507-82-7 52629 Fluorotelomer carboxylic acids 3-Perfluoropropyl propanoic acid 3:317TCA 356-02-5 PF001 2H,2H,3H,3H-Perfluorooctanoic acid 5:3FTCA 914637-49-3 PF007 3-Perfluoroheptyl propanoic acid 7:3FTCA 812-70-4 PF005 Page 17 of 17