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Home My WebLink AboutNC0081621_Draft Permit_20180821 . ROY COOPER Gover as MICHAEL S.REGAN secretary Water Resources LINDA CULPEPPER Interim Da ector ENVIRONMENTAL QUALITY August 21, 2018 Mr. Timothy R. Kiser, P.E. Engineering Director Water and Sewer Authority of Cabarrus County P. O. Box 428 Concord,NC 28026 Subject: Draft NPDES Permit Permit NC0081621 Muddy Creek WWTP Cabarrus County Grade II(0.15 &0.3 MGD) & III (0.53 ° MGD)Biological WPCS SIC Code 4952 Dear Mr. Kiser: Enclosed with this letter is a copy of the Draft NPDES permit renewal and modification 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: • The Division reviewed and concurred with your flow justification of 0.53 MGD, as well as the EAA conclusion that the direct discharge to surface water alternative is the most environmentally sound alternative selected from all reasonably cost-effective options (per 15A NCAC 2H.0105(c)(2)). • The'Supplement to Permit Cover Sheet has been updated to include prior to expansion to 0.53 MGD with outfall 002,plans and specifications must be submitted to the Division for approval and subsequent issuance of Authorization to Construct(A to C).No construction may begin until such authorization has been issued by the Division. Also,no discharge via outfall 002 may begin until submission of Engineer's Certification of completion to the Division. • Special condition has been added to the permit (See A. (5.)) requiring closure of the existing facility (outfall 001) once the construction of the new facility (outfall 002) has been completed and the Engineer's Certification of completion has been submitted to the Division. • The Effluent Limitations and Monitoring Requirements (A. (3.)) for the new facility with outfall 002 has been added to the permit. • The topographic map was updated to include the proposed location of outfall 002 and the location of the existing facility. State of North Carolina I Environmental Quality I Water Resources 1617 Mail Service Center I Raleigh,North Carolina 27699-1617 919 807 6300 Page 13 • Regulatory citations have been added to the permit. Please note that the receiving stream, Rocky River, is listed as impaired for turbidity, copper and zinc on the North Carolina 2016 303(d) Impaired Waters List. Addressing impaired waters is a high priority with the Division, and instream data will continue to be evaluated. If there is noncompliance with permitted effluent limits and stream impairment can be attributed to your facility, then mitigative measures may be required. The NPDES Standard Conditions (Parts II, III, and IV) are not included with this draft. They can be found at the following link if you would like to review them in conjunction with this draft permit. http://portal.ncdenr.org/c/document_library/get file?uuid=b32f8a66-541c-4cf5-8ba6- 03 e3 81 edb2da&groupld=3 83 64 Concurrent with this notification the Division is publishing a notice in a newspaper having circulation in the general Cabarrus 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 contact me at(919) 707-3607 or by email at Qais.Banihani@ncdenr.gov. Sincerely, t\ Qais Banihani, Engineer NPDES Complex Permitting Unit Hardcopy: NPDES Files Ecopy: Mooresville Reginal Office/Water Quality US EPA Region 4 Wastewater Operator Certification Group/Maureen Kinney WSS/Aquatic Toxicology Branch/Susan Meadows WSS/Ecosystem Branch/Mark Vander Borgh NCWRC/Olivia Munzer Willis Engineers/Charles A. Willis Field WWTP Operator/Kimberly D. Holt STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER T.HE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM 'NY \-•\ In compliance with the provision of North Carolina General/Statute 143-21'5.1,'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 \ , „ \/ Water and Sewer Authority of Caliarrus County `J is hereby authorized to dischar-ge,wastewater from a'facility located at the -> Muddy Creek WWTP ---14655 Hopewell Church koad / , Midland ) `` ,r Cabarrus County to receivingwaters designated ascthe RockyRiver iii subbasin 03-07-12 of the Yadkin-Pee Dee River Basin in accordance-witleffluent limitations, monitoring requirements, and other conditions set forth in Parts I,-II,IlI and IV hereof: ° a This permit'shall become effective Mon'tb ,20XX. This permit and authorization to discharge shall expire at midnight on October 31,2023, Signed this day M¢'n ' _ ,.293X. N. DRAFT Linda Culpepper, Interim Director Division of Water Resources By Authority of the Environmental Management Commission Permit NC0081621 A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (0.15 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade II Biological Water Pollution Control System 115A NCAC 08G.0302] During the period beginning upon the effective date of this permit and lasting until expansion above 0.15 MGD (and receipt of the Engineer's Certification of completion) or until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored) by the Permittee as specified below: / 7 PARAMETER CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Parameter Code Monthly . Weekly Daily Measurement Sample Sample Average Average Maximum Frequency 2 Type Location 2 Flow 50050 0.15 MGD / Continuous Recoding Influent or Effluent ."" BOD,5-day(20°C)3 C0310 10.0 mg/L 15.0 mg/L y ;`, /2/Week Composite,,› Influent and (April 1—October 31) �.<,,, /1' P,7 > Effluent BOD,5-day(20°C) 3 �°�,,q �"�,t,��; ,, Influent and C0310 20.0 mg/L ,.30.0 mg/L 2/Week Composite (November 1 —March 31) f ~ ¢ - Effluent Total Suspended Solids ~ Influent and C0530 30.0 mg/L `'45:0 mg/L 4 A- ..k 2 /Week Composite Effluent (TSS)3 ', ,'). '-, --- ``� Ammonia(NH3 as N) `` " (April 1 -October 31) C0610 „r4,0 mg/L 12.0,mg/,L / ��-: ,>2/W, eek Composite Effluent Ammonia(NH3 as N)mg/L x;, ,;, --"" , ,,\ A `/ n� (November 1 -March 31) C06J0 8.0 mg/L '' 24.0 mgl V ,,( 21Week Composite Effluent Dissolved Oxygen(DO) ,t.00300 Daily average?.5.0 mg/L' = 3/Week Grab Effluent Fecal Coliform 31616k 22 1100 L� ~400!100"mL 'f 2/Week Grab Effluent (geometric mean)'" F� ". n ,z+, , .,/ Total Residual,Chlorine - s. '•50060 28 pg/L 3/Week Grab Effluent (TRC)4 ,:,/ v-,., :. Temper`ature'(°.C) 00010," '',. �v- / 3/Week Grab Effluent _pH ' 00400 ) Between 6.0 and 9.0 standard units 3/Week Grab Effluent Total Hardness[as CaCO3] • 00900 � / Monitor and Report Quarterly Composite Effluent (mg/L)6 `� ~ / ° Chronic Toxicity 6 '\~TGP3 Quarterly Composite Effluent Effluent Pollutant Scan NC01 Monitor and Report Footnote 7 Footnote 7 Effluent Page 3 of 15 Permit NC0081621 A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (0.3 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade II Biological Water Pollution Control System [15A NCAC 08G.0302] Beginning upon receipt of the Engineer's Certification of completion of the 0.3 MGD expansion and lasting until expansion above 0.3 MGD (and receipt of the Engineer's Certification of completion) or until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored1 by the Permittee as specified below: , PARAMETER CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Parameter Code Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency 2 Type Location 2 Flow 50050 0.3 MGD // Continuous Recording Influent or Effluent e BOD,5-day(20°C)3 7 2/Week 4 Com osite;° -' . Influent and C0310 10.0 mg/L 15.0 mg/L` p (April 1—October 31) �' - i •K/ Effluent BOD,5-day(20°C)3 �yz a:`,n, 4`�" Influent and C0310 20.0 mg/L 30.0 mg/L 2/Week Composite Effluent (November 1 —March 31) V1 - Total Suspended Solids ��'�''' ` �> Influent and C0530 30.0 mg/L \45:O mg/L'-' ._y 2/Week 4 Composite Effluent (TSS)3 --1/4 � o Ammonia(NH3 as N) °:, , -'-'. ,:::: '� X' v,v (April 1 -October 31) C0610 4.0 mg/L 12.0 mg/L ,, ' y-,.b 2IWeek-4' Composite Effluent /- , / ' „ Mme. Ammonia(NH3 as N)mg/L ,/' ,---""----,°_ '" 4' , '� �' ``/ 00610- 8. 0 mg/s1.. �y, 24.0 mg/L�" 's 21Week 4 Composite Effluent (November 1 -March 31) / :,X Dissolved Oxygen(DO) '-•,; 00300 Daily/average>_5.0 mg/L 3/Week Grab Effluent Fecal Coliform 31616 '`20%100 mL '400/1001mL - 2/Week 4 Grab Effluent (geometric meaq) 7, Total Residual,Chlorine `-- , : , w 50060 �. 28 pg/L 3/Week Grab Effluent (TRC)'5 s, Temperature(,,�C) 0000\ 3/Week Grab Effluent pH �' 00400 Between 6.0 and 9.0 standard units 3/Week Grab Effluent Total Hardness[as'4CO3) (mg/L)s 00900 Monitor and Report Quarterly Composite Effluent Chronic Toxicity 7 �TGP3B Quarterly Composite Effluent Effluent Pollutant Scan NC01 Monitor and Report Footnote 8 Footnote 8 Effluent Dissolved Oxygen 9(mg/L) 00300 Variable Grab U,D Page 5 of 15 Permit NC0081621 A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (0.53 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade III Biological Water Pollution Control System [15A NCAC 08G.0302] Beginning upon receipt of the Engineer's Certification of completion of the 0.53 MGD expansion and lasting until permit expiration, the Permittee is authorized to discharge from outfall 002. Such discharges shall be limited and monitored) by the Permittee as specified below: A.. > . PARAMETER CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS Parameter Code Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency 2 Type Location 2 Flow 50050 0.53 MGD i y Continuous 'Recording Influent or Effluent BOD,5-day(20°C)3 i �'' ' Influent and (April 1 -October 31) C0310 5.0 mg/L 7.5 mg/L ,� 31Week Composite '' . Effluent BOD,5-day(20°C)3 \ :'.\ / / Influent and (November 1 -March 31) C0310 10.0 mg/L 15.0 mg/L .`°',,' - /3/Week Composite Effluent /":-4. \, / Total Suspended Solids " v ''y Influent and (TSS)3 C0530 30.0 mg/L .4550-mg%L'".,w`� ,' '3/Week Composite, Effluent Ammonia(NH3 as N) >~'� ``� -\ (April 1 -October 31) C0610 1.0 mg/L 3..0�.`mg/L ry" ;' -, 31Week> Composite Effluent "V ,,,rte v Ammonia(NH3 as N)mg/L ' o.,�C0610 2.0 mg/L 6.0 mg/L,; q / 3/Week Composite Effluent (November 1 -March 31) v z -a Dissolved Oxygen(DO) . `00300 Daily<<average z 5.0 mg/L 3/Week Grab Effluent Fecal Coliform `-" ��31616�N200/100 niL '-400/100 mL. -'/7 3/Week Grab Effluent (geometric mean)•�� .,y -=- / Total Residual Chlorine ```� .: Permit NC0081621 A(4.) 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 0.60% at 0.15 MGD flow regime, 1.2% at 0.3 MGD flow regime and 2.1% at 0.53 MGD flow regime. The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,'"YRevised December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Ef ierit'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/,*(to ting\must be obtained during representative effluent discharge and shall be performed at the ANDES 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 sha11 b"e 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 of� All toxicity testing results required as p ' this°pernut condition-swill artbe entered on the Effluent Discharge Monitoring Form (MR-1) for the months in-whick•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 ./ Attentieri*j'Ak Carolina Division of Water Resources Water'Sciences Section/Aquatic Toxicology Branch \ 1621 Mail`.Service Center r' - Raleigh,NC'27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days/after/the end of the reporting period for which the report is made. Test data''shall be complete\ accurat,include all supporting chemical/physical measurements and all concentration/response data, andlbe 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. Page 9 of 15 Permit NC0081621 Hardness 1,1,2,2-tetrachloroethane Di-n-butyl phthalate Antimony Tetrachloroethylene Di-n-octyl phthalate Arsenic Toluene Dibenzo(a,h)anthracene Beryllium 1,1,1-trichloroethane 1,2-dichlorobenzene Cadmium 1,1,2-trichloroethane 1,3-dichlorobenzene Chromium Trichloroethylene 1,4-dichlorobenzene , Copper _ Vinyl chloride 3,3-dichlorobenzidine Lead Acid-extractable compounds: Die hyl'phthalate Mercury(EPA Method P-chloro-m-cresol Dimethyl phthalate 1631 E) y Nickel 2-chlorophenol � ,4`=dinitrotoluene Selenium 2,4-dichlorophenol/ , 2,6-din trotoluene Silver 2,4-dimethylphenol `' 1,2-diphenylhydrazine Thallium 4,6-dinitro-o cresol Fluoranthene\; °.‘, Zinc 2,4-dinitrophenol 4Fluorene ' , .\,, Cyanide 2-nitrophenol, , , f/ Hexachlorobenzerie/ ` Total Phenolic Compounds 4-nitrophenol \ ,,„ /-- Hexachlorobutadiene Volatile organic compounds: PPhentachlorophenol,,� ° %' Hexachlorocyclo-pentadiene Acrolein enol,:`:-.., \, \ Hexachloroethane Acrylonitrile 2,4,6-trichlorophenol t ` °indeno(1,2,3-cd)pyrene � Benzene Base-neutral compounds: ``\Is p orone Bromoform --w, Acenaphthene��' %,,,---, �- �-- Naphthalene Carbon tetrachloride ,,., _ �`‘, Acenaphthylene" ''=. ,%Nitrobenzene Chlorobenzene /�/ '`, ',Anthracene// N-nitrosodi-n-propylamine Chlorodibromomethaane j''' ;Benzidine•°,` N-nitrosodimethylamine Chloroethane `'°.,'' • /-_°Benzo(a)anthracene N-nitrosodiphenylamine 2-chloroethylvinyl'ether 7` a.Benzo(a)pyrene> Phenanthrene Chloroform-7--.. , . // 3,4 benzo fluoranthene Pyrene Dichlorobromomethane'"�, - ' Benzo(ghi)perylene 1,2,4-trichlorobenzene x'1,1-dichloroethane, ' Benzo(k)fluoranthene �.1,2-dichloroethane `• ''... ,Bis (2-chloroethoxy) `i , .,.methane Reporting. Test results shallibe{reported on DWR Form-A MR-PPA1 (or in a form approved by the Director) by December 31s;.of each designated sampling year. The report shall be submitted to the following address:°=NC.,DEQ,./ DWR / Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617., \. 2 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 Page 11 of 15 Permit NC0081621 access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. See"How to Request a Waiver from Electronic Reporting" section below. Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Starting on December 21, 2020, the permittee must electronically report the following compliance monitoring data and reports, when applicable: • Sewer Overflow/Bypass Event Reports; • Pretreatment Program Annual Reports; and • Clean Water Act(CWA) Section 316(b)Annual Reports. The permittee may seek an electronic reporting'waiver from the Division (see "How to Request a Waiver from Electronic Reporting" section below). 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the per nittee-must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. , Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or the state-authorized by,EPA'to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40-CFR 127:2(b)]. EPA plans to_establish a website that will alsolink 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/2015/10/22/2015- 24954/national-pollutant-discharge-elimination-system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the"Reporting Requirements" section above. 3. How to Request a•,Waiver-from Electronic Reporting The permittee may `seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may Page 13 of 15 Permit NC0081621 \• -- , - 1 t... , /• �- Vl. t. -:•":"1 `• \\, Ij/ 1-`) iij_..?„5, )\_\•.-_-.-----..-:::;_f .!, 1 /-:\,, ef.--',---,..z .5:' ,),, ,,:.:,, . , %3\ '." ) N„.2 IL, j.,,, .... ....,--:y. -\41.1(..\\\I.( a \ , . ... er: e 0 \._. 4. 7 .. . _ 4,1 ,, -=',.'s f 111 II ( 4. `, r ( ,.z c ``---j Atibb-. / ' )411 t (\'' - -,--- '--- i ()\_ic) .0.1 ... . ( , ..-,1-- ' -A .. c%,. 4Y...\' \ , . --- ,... , \„, ‘k ,c1 -.-'•/ --- . , -,,---- ,....()_, , ., /_../ 7 c. , \'..../.(.' -- # • 0 .s J• CO i'L./7\ CD --...,-) ) ' ' (---",./ .- 151- 77-46.----_--'t : ', .$•.Y1. ' tV r f-/ , \\ \\:-...../ / 1 , ., •/ . 2 j(r--..1 : .1-\ NN ' - Cil :.\ 1 CA04 .\\' 1. (L ili:".-. ' ii 1 7 \ ___._, ,i' ' (7/ , :.ii () _.A.. . rr...---7(\k....\ ..--------. J tv0.4 -_if (-II-. ')\ 13 'N\ f . ,,, \. t3 ., \ `• -411".---:: --..• .... .1,5 k_ --1 C (i" \ .1 /76)\)(- V.—i \ c_- ? TV, 1.• ; - :.--‘\71, ..--,,...r,v.-....,=7,--7,--, A i `'--_-- L XL.); &.--\,. — r-- 0. ' 'Poo ) , .* _ :S. -- ._ . ,----7 j'-: I - . , )) 4 47 rs--,— ' Discharge rfc_zi �\ 1 / ih Location 1/ {/ �� t `� C ..) �f { L \No; i / Outfall 001 --J --,__ -11 ' .. 11 i 1 ( ( �. .� . , ,-,. j p 1 =moi 1 ,..v)it 1 i • ) ("?- .'- --' 'Th-10...-- .7-77' (,i ° i 1 S 0 ,, ( ji ).__ ___ CI , 7(/ 0"\S I f * ( I. Fr.,\ ,.k.C-k--,Th ! 1 „. . Muddy Creek I ;��.... ,\\; �, �.- _._pi .ak .....,;.,.\t'ti fa'+ , _� (i — .,, 71 WWTP - ',,ri -;"=-�✓ J 1 vJ�,, - ' 1, r? I l • .ci)N / d/,.,-. � \ Discharger) } �� ,.� , ;' ..,,,....\-, - Location • �, off; 1 'i�� :0� ,` •\ `( r_ ( ' Outfall 002 / o t I fc-,� -;) ,I.// //- (( I- _1(7-----___ s'.5.),,..'.) i ) -j_75-),) ii.. ----?, (Z NC0081621 — Muddy Creek WWTP Facility -- Latitude: 35°12'311" Sub-Basin: 03-07-12 Location 1 4 Longitude: 80029'27" River Basin: Yadkin-Pee Dee Quad Name: Stanfield,N.C. Receiving Stream: Riatv5 o` 1 Stream Class: C HUC: 03040105 r__•il Cabarrus County �f�l(�1 �, Map not to scale