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HomeMy WebLinkAboutNC0020401_Draft Permit_20210324 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E ROY COOPER a' Governor V ie. DIONNE DELLI-GATTI . Secretary S.DANIEL SMITH NORTH CAROLINA Director Environmental Quality March 24, 2021 Mr. Warren Wood, City Manager City of Hickory PO Box 398 Hickory,North Carolina 28603 Subject: Draft NPDES Permit Renewal Permit NC002040 1 Northeast WWTP Catawba County Grade IV Biological WPCS SIC Code 4952 Dear Mr. Wood: 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: • Based on the reasonable potential analysis (RPA) showing no reasonable potential to violate state water quality standards,the monitoring requirements for Total Cadmium and Total Silver have been removed from the permit[See A. (1.)]. • Based on NPDES guidance regarding the reduction of monitoring frequencies in NPDES permits for exceptionally performing facilities,monitoring requirements for BOD5,N-b-N, Total Suspended Solids and Fecal Coliform have been reduced to twice per week [See A. (1.)]. • The City of Hickory reported Bis (2-ethylhexyl) phthalate at less than detection of all samples tested, among which one was at detection level < 50.0 µg/L and another at < 25.0 µg/L in the DMR results).The City's allowable discharge concentration for Bis(2-ethylhexyl) phthalate is 8.1 µg/L. DWR's laboratory identifies the target Practical Quantification Limit (PQLs) for Bis (2-ethylhexyl) phthalate as 10.0 µg/L. 15A NCAC 2B .0505 (e) (4) requires that all test procedures must produce detection and reporting levels that are below the permit discharge requirements and all data generated must be reported to the approved detection level or lower reporting level of the procedure. If no approved methods are capable of achieving a detection level below the permit discharge requirement(or allowable discharge concentration) the method with the lowest detection level must be used. The City should use sufficiently sensitive test methods for all pollutants, including when performing Effluent Pollutant Scans. Quarterly monitoring for Bis(2-ethylhexyl)phthalate has been maintained: • Instream monitoring parameters have been removed from the Effluent sheet [A. (1.)] and placed as a separate Special Condition [See A. (2.)]. • Some of the wording has changed in Special Condition A. (3.), Chronic Toxicity Permit Limit,,please review each paragraph carefully. N r� No Quality I rc ���/// 512rth North SalisburyCarolinaDepartment Street of 1617 MailEnvironmental Service Center I Raleigh,Division NorthofWater CarolinaResou 27699-1617 es �++ �•�•� r 919.7079000 DocuSign Envelope ID 73E298C0-16A4-4B8A-AA9E-4F05308D6E1E • Special Condition A. (4.) has been modified to include the specific three years in which the Effluent Pollutant Scan shall be performed(2023, 2024,and 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 A. (5.)]. • 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 [See A. (5.)]. • Parameter codes have been added to the Effluent Limitations and Monitoring Requirements and Instream Monitoring Requirements [See A.(1.)and A. (2.),respectively]. • Regulatory citations have been added to the permit. The NPDES standard conditions(Parts II, III, and IV)that are a part of the permit are not included in this draft document(cover,map,and Part I).The conditions are the same as in your current permit except that agency and division names have been updated. The latest version is available at https://bit.ly/3k5NFaL and can be viewed online or downloaded as a PDF file. Concurrent with this notification the Division is publishing a notice in a newspaper having circulation in the general 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) 707-3611 or by email at gary.perlmutter@ancdenr.gov. Sincerely. Liby gCp2D Gary Perlmutter, Environmental Specialist II 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 DWR/Municipal Permitting Unit//Kristin Litzenberger DWR/Public Water Supply/Clinton Cook Page 2 of 2 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES 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 City of Hickory is hereby authorized to discharge wastewater from a facility located at the Northeast Wastewater Treatment Plant (WWTP) 310 Cloninger Road Hickory,NC Catawba County to receiving waters designated as Catawba River (Lake Hickory) 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 Month I. 202 This permit and authorization to discharge shall expire at midnight on April 30,2026. Signed this day Month xx, 2021. DRAFT for S.Daniel Smith,Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 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 City of Hickory is hereby authorized to: 1. Continue to operate an existing 6.0 MGD wastewater treatment facility that includes the following components: .;1®1;1' 1 1 1 . 1 1 1 ,'11111'. • Influent Sampler 1 1 $ I I . • Parshall Flume 1 1 ' '1'1. i i • Dual Influent Bar Screen 1,40.'�1'•' "`���;., • Influent Lift Station ,.,1i1,. ii.. • Vortex Grit Removal System " °" i1'I 1. 1 1 . • Four Anaerobic Basins ''' °1 ,°,°; I':,:; , • Two Anoxic Basins A 1' ,'1 1 1 I 1 VI 1'" • Two Oxidation Ditches !; _; , 1.11 • Three Circular Secondary Claftberg•'.:. ., °i'1 • Chlorine Contact Chamber �' 1 "°'' 1 , 1 1 1 ► ' 1 1 1 1111 • Dechlorination .';'-'.-.1 ,;1; F1,1,11•, "1�1, • Post Aeration 1 1 "'.';'1 1'1 i. 1 I I III 1 1 . , 1 / e 1 1 1 , • Two Gravity Belt Thickeh4rs '1'1 I1' ° • Five Sludge Holding Tank$.; ; I• Efflue,nt;S npler tv .'.,A'1,1. i'�'1 1 , 1 1 . / 1 1 1 1 . 1 1 1 . 1{11., ' 1,111 I I "1°1 `°1°1 I,11.. This facilit3 4 located at the l'ortheasi 'WTP, 310 Cloninger Mill Rd, Hickory, Catawba County, and; '1i1 111�1` Y'1 1 1 P 1 1 1 1 1 1 1 I i 1 I II 1 / 1 1 1 ' x 2. Discharge treated wastewater from said treatment works at the location specified on the attached map via Outfall 001 into Catawba River(Lake Hickory),which is a classified WS-IV, B; CA water in the Catawba River Basin. Page 2 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1 E Permit NC0020401 Part I A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (6.0 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Pollution Control System 115A NCAC 08G .0302] a. Beginning upon the effective date of the permit and lasting until permit expiration, the Permittee is authorized to discharge treated municipal wastewater from Outfall 001. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Parameter Code Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location Flow 50050 6.0 MGD Continuous RecordingInfluent or Effluent BOD,5-day,20°C 2 C0310 30.0 mg/L 45.0 mg/L 2/week 3 Composite Influent& Effluent Total Suspended Solids(TSS)2 C0530 30.0 mg/L 45.0 mg/L 2/week 3 Composite Influent& Effluent Ammonia-Nitrogen(NH3-N) C0610 6.0 mg/L 18.0 mg/L 2/week 3 Composite Effluent Dissolved Oxygen(DO) 00300 Monitor and Report Daily Grab Effluent Fecal Coliform 31616 200/100 mL 400/100 mL 2/week 3 Grab Effluent (geometric mean) pH 00400 Between 6.0 and 9.0 S.U. Daily Grab Effluent Total Residual Chlorine' 50060 28 pg/L Daily Grab Effluent Temperature 00010 Monitor and Report Daily Grab Effluent Conductivity 00094 Monitor and Report Daily Grab Effluent Total Hardness(as CaCO3) 00900 Monitor and Report Quarterly Composite Effluent (mg/L)5 Total Copper(as Cu) 01042 Monitor and Report Quarterly Composite Effluent Total Zinc(as Zn) 01092 Monitor and Report Quarterly Composite Effluent Bis(2-ethylhexyl)phthalate 39100 Monitor and Report Quarterly Composite Effluent Total Nitrogen C0600 Monitor and Report Monthly Composite Effluent (NO2+NO3+TKN) Total Phosphorus C0665 Monitor and Report Monthly Composite Effluent Chronic Toxicity6 THP3B Monitor and Report Quarterly Composite Effluent Effluent Pollutant Scan NC01 Monitor and Report Footnote 7 Footnote 7 Effluent Footnotes on next page. Page 3 of 13 DocuSign Envelope ID 73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 Footnotes: 1. The Permittee shall submit discharge monitoring reports electronically using NCDWR's eDMR application system; see Section A.(5.). 2. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15%of the respective influent value (85%removal). 3. Sampling must occur on any two nonconsecutive days during a calendar week. 4. The facility shall monitor TRC when using chlorination for disinfection.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 (including field-certified), even if these values fall below 50 µg/L. 5. Effluent Hardness sampling should be in conjunction with testing for hardness-dependent metals (cadmium, chromium,copper,lead,silver,selenium and zinc). 6. Whole Effluent Toxicity will be monitored using the Pass/Fail Ceriodaphnia dubia at 13%effluent.Samples shall be taken in January,April,July,and October see A.(3.). 7. The Permittee shall perform three Effluent Pollutant Scans during the term of this permit;see A.(4.). all 1' 1 / II I If , 1 1 t a . 1 file' , III b. There shall be no discharge of floating solids or visible foam in other than trace amounts. i 1 1 Ia '1'111 111 a 1 I 1 1 , .`1 '111`1 t41'11r I ,Will ,i lII1 r 1; 11111'1 1a1a1 I111' 1111/'a/f'i II,1a1a ,al, fi Ills-r 1 1 1 I4 1/f1 11111 114 1 111 1 1 1 E 1 1 111121 1'1 1 1 1 111111i111111, 1�,11. . 1111111 I.` a1a IE I1a1aa' - - 11a1I 1 at r 1 I t I la1ll,lar,rr '1_11a1 111arr 1111111 'aa III 1,11 a a 1 1 1 . 11111 vaI1 441.141 1 ' ' 1 ' ' 1 1 1. ' I ' 111 • 1aIf r1 / aa1a1a a11f1111d / I s 1 1 1 '. a1 aal . • I.1' a I , , l 11 • '1'aa1 . a , ' li a ' ' 1 1 I11 / 1 e1 1I 1 - a 111 111 I' ,1,al '1 a'1aa1 aa a' 1, I ' 1 11 11Ia 1a11 11l a ' 1 1 1 Ia 1 1 a 1 1 la aa I 1 a a 1 1 1 1 3 1111 1 1 1 1111 1'1'1 81/1 a/ldla 1 111111111.. a a 1 ' 1 a ' 1 . Page 4 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 A. (2.) INSTREAM MONITORING REQUIREMENTS [15A NCAC 02B .0500 et seq.] During the period beginning on the effective date of the permit and lasting until expiration,the Permittee shall conduct instream monitoring as specified below: PARAMETER SAMPLE TYPE LOCATIONI MEASUREMENT FREQUENCY Parameter Code Dissolved Oxygen(DO) 00300 Grab Upstream, 3/week(June 1—September 30) Downstream 1/week(October 1—May 30) Temperature 00010 Grab Upstream, 3/week(June 1—September 30) Downstream 1/week(October 1—May 30) Conductivity 00094 Grab Upstream, 3/week(June 1—September 30) Downstream 1/week(October 1—May 30) Total Hardness(as CaCO3) 00900 Grab Upstream 1/quarter (mg/L)2 Footnotes: I. Upstream=at NC Hwy 127 bridge;Downstream=one mile downstream of the outfall. 2. The Permittee shall sample instream hardness, upstrea of the facility's discharge The sample shall be representative of the hardness in the receiving stream. IF* Perinttee is a member of the'Monitoring Coalition Program, sampling for instream hardness may be waived as long as the Monitoring Coalition agrees to sample hardness at the nearest upstream location, at a minimum frequency of quarterly, and the Permittee has obtained approval from DWR - NPDES Permitting Unit that the upstream station being monitored by the Coalition is representative of the receiving stream for this discharge. The Permittee'is responsible for submitting instream hardness test results with itS'permit renewal application package. If Coalition membership is cancelled or the Coalition terminates 1peiteam'hardness sampling at the approved station,the Permittee will immediately notify the Division and resume`I1}mpling for initieam hardness,upstream of its discharge. 1111 111 1 1 e 1i1 111/ 11 1 ,111 0111 11 . 1111116 1 1 11111111142 I1A11 ' Olio r , l III 11 1 i 1 1 • 1 1 I / I I I I I . i 1 121111 1 I I_ 11 'lull I 11fI •.1I111I `11 /2 1 1 I 1 I II . II 111 i111 I 1 1 1 1 1 1 1 1 1 11 112 11 II I I11 I 11 1 II I I Ili 11 1 1I�II1t 121Is1 gel i1 1 I II I111 0111 11111 111I 1 1 1 I I 111111 11 II IIII11 ,1111 II e F I , 116 11211E 1111I21I1 2.111 Page 5 of 13 DocuSign Envelope ID 73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 A. (3.) 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 13%. The permit holder shall perform at a minimum,quarterly monitoring using test procedures outlined in the"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"Revised December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised December 2010) or subsequent versions. The tests will be performed during the months of January, April, July and October. These months signify the first month of each three month toxicity testing quarter assigned to the facility.Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple-concentration testing shall be performed at a minimum, in each of the two following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"(Revised-December 2010)or subsequent versions. All toxicity testing results required as part of this permit condition will be entered electronically using the Division's eDMR system for the months in which tests were performed,using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value.Additionally,DWR Form AT-3(original)is to be sent to the following address: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch 1621 Mail Service Center Raleigh,NC 27699-1621 Or,results can be sent to the email,ATForms.ATB@ncdenr.gov. Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data,and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity(AT)test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of"No Flow"in the comment area of the form.The report shall be submitted to the Water Sciences Section at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required,monitoring will be required during the following month.Assessment of toxicity compliance is based on the toxicity testing quarter, which is the three month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream,this permit may be re-opened and modified to include alternate monitoring requirements or limits. Page 6 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 If the Permittee monitors any pollutant more frequently than required by this permit,the results of such monitoring shall be included in the calculation&reporting of the data submitted on the DMR&all AT Form submitted. 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. I1 1 1 i i 1 1 i I 1 I Y 1 ,'111I I .'l1111IIII:6 6 II1I 1 I11 • I 11 II6 I 1 I 1 a F 1 ! I/I II'ii,1 1 II6 6 1 I 6 • 1114I116. 111 6 111! 1 111166 I 1 111 6 1 . 1 I11a, I. 1I I 1111111! I1I1I1Ii. 11I°I°, • 1 1 . 1 I 1 1 I !Ii®il®R11 . I1111 1111 1 l I IY II III ! 111 1 . • 1 1 III IN 1 1IIi1 Y 1 . l Y ' l l l °®I I11 1 I°111 1"1.1-° 'I . I I 1 1 I 1 I I ! 1l IiI I1'111. 1ii1! III, 1 IIY 111 1YIY I1,ll 6 Ili. 111 11,IiI1 ' 11i11°� 1 1 1. 1111111 ! 1 6 II II®Ill !I°1 �.11. IIII 1 IIII IY.1°11/°ll1'1 1IF I1! 111111 e11'111 Y 1116. 1 1 1 l 1 1 1 1 Y ! 1 Irr Illlil 1 1 11IIII 1`Il1/. 1 1I1I1 1 6 I ' I111166 •111I111 . lI l lYY I r 111166 II116+ - 1 1 ' 1 1I,I IIi IIa 1Ii 1V1.1I1 'IIFoli l 11I66 I111 I II1I° 6I °I°I 1111166 11I1I I NI l I I tllltl ,1 I1I 1 I 6 Y 1 ' PINk 111111 I I1l1lI11 1 I I / s Page 7 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 A. (4.) EFFLUENT POLLUTANT SCAN(2.0 MGD) [NCGS 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: 2023,2024,and 2025.Analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than applicable standards and criteria. Samples should be collected with one quarterly toxicity test each year, and must represent seasonal variation [i.e., do not sample in the same quarter every year]. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia(as N) C0610 Trans-1,2-dichloroethylene 34546 Bis(2-chloroethyl)ether 34273 Chlorine(total residual,TRC) 50060 1,1-dichloroethylene ,• 5O1 Bis(2-chloroisopropyl)ether 34283 Dissolved oxygen 00300 1,2-dichloropropane .'1',C0541 Bis(2-ethylhexyl)phthalate C0100 Nitrate/Nitrite 00630 1,3-dichloropropylene ,-Q 0;•;0,77163 4-bromophenyl phenyl ether 34636 Kjeldahl nitrogen 00625 Ethylbenzene "',:,'' 71 Butyl benzyl phthalate 34292 Oil and grease 00556 Methyl bromide ,a:I:a, 34413 2-chloronaphthalene 34581 Phosphorus C0665 Methyl chloride,.:.:.'!' 34418 4-chlorophenyl phenyl ether 34641 Total dissolved solids 70295 Methylene chl641e-' 34423 Chrysene 34320 Hardness 00900 1,1,2,2-tetrachloroe h ne 81549 Di-n-butyl phthalate 39110 Antimony 01097 Tetrachloroethylene '.:,, pi;34475 Di-n-octyl phthalate 34596 Arsenic 01002 Toluene '1;1,1,1;•34010 Dibenzo(a,h)anthracene 34556 Beryllium 01012 1,1,1-tichloroethane ,°,°, 34506 1,2-dichlorobenzene 34536 Cadmium 01027 1,1,2-trichloroethane .','34511 1,3-dichlorobenzene 34566 Chromium C0034 Trichloroethylene ° ;l,1. 39180 1,4-dichlorobenzene 34571 Copper 01042. Vinyl chloride . ',,,�., 391750, 3,3-dichlorobenzidine 34631 Lead ,••'' 01051,:` Acid-extractable comp'o�AIw;a 1°' Diethyl phthalate 34336 Mercury(Method 1631E) ,.;i, COMER P-chloro-m-cresol '134452 Dimethyl phthalate 34341 Nickel °°'r: 01067 2-chlorophenol 34586 2,4-dinitrotoluene 34611 Selenium 011,47 2,4-dichlorophenol 34601 2,6-dinitrotoluene C0626 Silver 11�,',',i,! 0107T.,I12,4-dimethylphenol 34606 1,2-diphenylhydrazine 34346 Thallium ,,,',,,'•'•'®',': 01059:_;0'4,6-dinitro-o-cresol 34657 Fluoranthene C0376 Zinc .;s;J;F` 01092 °,"2,4-dinitrophenol 34616 Fluorene 34381 Cyanide '■; , 00720 2-nitrophenol 34591 Hexachlorobenzene C0700 Total phenolic compounds 32730 , 4-nitrophenol 34646 Hexachlorobutadiene C0702 Volatile organic compounds: 'd' Pentachlorophenol 39032 Hexachlorocyclo-pentadiene 34386 Acrolein 34210 °;';Phenol 34694 Hexachloroethane 34396 Acrylonitrile I s', 34215 ,°,°2,4,6-trichlorophenol 34621 Indeno(1,2,3-cd)pyrene 34403 1 , , 9 Benzene 'o' 34030 ',:>Base-neutral compounds: Isophorone 34408 Bromoform 32104 ' Acenaphthene 34205 Naphthalene 34696 Carbon tetrachloride 32102 Acenaphthylene 34200 Nitrobenzene 34447 Chlorobenzene 34301 Anthracene CO220 N-nitrosodi-n-propylamine 34428 Chlorodibromomethane 34306 Benzidine 39120 N-nitrosodimethylamine 34438 Chloroethane 85811 Benzo(a)anthracene C0526 N-nitrosodiphenylamine 34433 2-chloroethyl vinyl ether 34576 Benzo(a)pyrene 34247 Phenanthrene 34461 Chloroform 32106 3,4 benzofluoranthene 34230 Pyrene 34469 Dichlorobromomethane 32101 Benzo(ghi)perylene 34521 1,2,4-trichlorobenzene C0551 1,1-dichloroethane 34496 Benzo(k)fluoranthene 34242 1,2-dichloroethane 32103 Bis(2-chloroethoxy)methane 34278 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 31 st of each designated Page 8 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 sampling year.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 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 1621 Mail Service Center Raleigh,North Carolina 27699-1621 Or, results can be sent to the email: ATForms.A"l'B(a ncdenr.gov. 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 9 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 A. (5.) ELECTRONIC REPORTING - DISCHARGE MONITORING REPORTS [G.S. 143-215.1(b)] Federal regulations require electronic submittal of all discharge monitoring reports(DMRs)and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit(Standard Conditions for NPDES Permits): Section B.(11.) Signatory Requirements Section D.(2.) Reporting Section D.(6.) Records Retention Section E.(5.) Monitoring Reports 1. Reporting Requirements (Supersedes Section D. (2.)and Section E.(5.)(a)1 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 10 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1E Permit NC0020401 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. -r facilities means the entity recipient of electronic NPDES information from NPDES-regulated ac (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.federalregister.gov/documents/2015/10/22/20 5-24954/nati ona I-po lutant-d i scharge- elimination-system-npdes-electron ic-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. 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)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. Page 11 of 13 DocuSign Envelope ID:73E298C0-16A4-4B8A-AA9E-4F05308D6E1 E Permit NC0020401 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://dechnc.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 ISunalements Section D.(6.)I 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 ``� `od maybe extended byrequest of the Director at anytime [40 CFR p m l� q 122.41]. A. (6.) MERCURY MINIMIZATION PLAN(MMP) [NCGS 143-215. 1(b.)] The Permittee shall maintain and continue to implement the Mercury Minimization Plan (MMP) developed in the previous permit term. The MMP shall continue to be available for inspection on-site. 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 MMP 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 action to address the Waste Load Allocation. 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WWTP {` -,_. , . , \tom. , '- '(� ''S'4 z,,-• _ :.;41..(.1, -..,.,.„ \' Facility Information Facility x Latitude: 35°47'54" Sub-Basin: 03--08-32 Location Longitude: 81°18'00" Stream Class: WS-IV &B Catawba County Quad#: D 13 SE(Bethlehem) Receiving Stream: Catawba River(Lake Hickory) North City of Hickory-Northeast WWTP Permitted Flow: 6.0 MGD NC0020401 Page 13 of 13