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HomeMy WebLinkAboutNC0024295_Draft Permit_20210223 ROY COOPERY. Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH ";"' Director NORTH CAROLINA Environmental Quality February 23,2021 Tony Konsul,Director of Operations Carolina Water Service (CWS) Inc.of North Carolina 183 Connestee Utility Drive Brevard,North Carolina 28712 Subject: Review of Reviewal DRAFT NPDES Permit NC0024295 Connestee Falls WWTP No 1,Grade WW-2 Transylvania County To Mr. Konsul: The Division of Water Resources (DWR or the Division) received your application to renew the subject permit on February 3, 2020.Please review the attached renewal draft carefully to ensure your understanding of its limits and monitoring conditions, and to correct errors, if any. Concurrent with this notification,the Division will solicit public comment on this draft by publishing a notice in newspapers having circulation in the general Mecklenburg County area,as required by the NPDES Program. Please submit your written comments (if any),to my attention, NCDEQ/DWR/NPDES no later than March 26,2021 (approximately 30 days after receiving this document).We welcome your written comments, but they are not mandatory. Renewal Changes: CWS informed DWR that a partial flow expansion was achieved in accord with Authorization to Construct No. 024295A02(05Dec2017).We understand that this facility's new treatment works has a design flow 0.360 MGD.It follows therefore,that this permit continues to authorize a potential future expansion to 0.460 MGD as previously permitted,i.e., this remains a phased- flow permit. Lastly, limits and monitoring conditions have not changed for renewal [see sections A.(1)and A. (2).]. Monthly Report Submittals: Federal regulations require electronic submittal of all program reports and Monthly Discharge Monitoring Reports(DMRs); see Permit Condition A. (3.). Our records show that you have successfully registered for the Electronic Discharge Monitoring Report(eDMR)program. If you have filled out and submitted to DWQ an Electronic Signature Agreement,you are no longer required to submit DMR hardcopy as back-up to the eDMR. North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11617 Mail Service Center I Raleigh,North Carolina 27699-1617--919.707.9000 Tony Konsul CWS, Inc. Renewal Draft Penn it Review Page 2 of 2 Following the mandatory 30-day Public Comment period,the Division will review all pertinent comments, if any, and take appropriate action prior to issuing an NPDES permit final. If you have questions,please email the undersigned at[ioe.corporonAncdenr.gov]. In support of mandated emergency response to Covid 19,much of NC state government currently functions remotely,therefore correspondence via email is preferred. Respectfully, oe R. C oron, .G. / DEQ/D /NPDES Permitting Enclosure:NPDES Permit NC008 9206(re wal draft) ec: DWR/ARO, Tim Heim NPDES Program Files DWR/OCU, Maureen Kinney Permit NC0024295 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) In compliance with the provisions of North Carolina General Statute 143-215.1,other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act,as amended, Carolina Water Service, Inc. of NC is hereby authorized to discharge wastewater from a facility located at the Connestee Falls WWTP No. 1 183 Connestee Utility Drive, Brevard Transylvania County to receiving waters designated as the French Broad River in the French Broad River Basin in accordance with effluent limits, monitoring requirements, and other applicable conditions set forth in Parts I, II,III and IV hereof. This permit shall become effective 2021. This permit and authorization to discharge shall expire at midnight on September 30, 2025. Signed this day 2021. S. Daniel Smith,Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 Permit NC0024295 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. Carolina Water Service Inc. of NC is hereby authorized to: 1. continue to operate a newly installed SBR 0.360 MGD wastewater treatment system utilizing with the following components: • vertical fine screen with auger [1.15 MGD capacity] • Influent lift station[with two(2) each 625 gpm pumps and VFD controls] • SBR basins,two(2)each at 9,410 gallons o three(3)each 499-SBR blowers o two(2)each 1,831-gpm SBR pumps • Post-EQ basin[101,620-gallon]with a 144-SCFM post-aeration blower • Digester[126,970 gallon] o one(1)240-SCFM digester blower o one(1)each 1,098 digester pump • cloth media filters,two(2)each with o four(4)filtering elements o one(1)air scour • two(2) each UV disinfecting units [0.900 MGD flow capacity] with o channel o automatic controls and monitoring • effluent flow meter with control channel • Emergency back-up generator and controls this system located at Connestee Falls WWTP No.1, 183 Connestee Utilities Drive,Brevard, Transylvania County,and 2. after receiving an Authorization to Construct from the Division to expand flow,and after submitting an Engineer's Certification for approved construction, construct and operate a 0.460 MGD wastewater treatment plant,then 3. discharge from said treatment works at the locations specified on the attached map into the French Broad River[Stream Segment 6-(1)], a waterbody currently classified B-Trout within subbasin 04-03-01 [HUC:06010105] of the French Broad River Basin. Page 2 Permit NC0024295 PART I A. (1.)EFFLUENT LIMITS AND MONITORING REQUIREMENTS(0.460 MGD) [15A NCAC 02B .0400 et seq.,02B .0500 et seq.] WWTP Class WW-2 [15A NCAC 08G.0302] During the period beginning upon the effective date of this permit or expansion above 0.360 MGD or expiration, the permittee is authorized to discharge 0.360 MGD of treated wastewater from Outfall 001. Such discharges shall be limited,monitored,and reported 1 by the pemuttee as specified below: EFFLUENT EFFLUENT LIMITS MONITORING REQUIREMENTS CHARACTERISTICS Monthly Daily Measurement Sample Sample Parameter Parameter Code Average Maximum Frequency Type Location Flow 50050 0.360 MGD Continuous Recorder Influent or Effluent BOD5(20Deg.C) C0310 30.0 mg/L 45.0 mg/L Weekly Composite Effluent TotalSuspended Solids C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent Fecal Colifonn(geometric mean) 31616 200/100 mI 400/100 m I Weekly Grab Effluent Total Residual Chlorine 2 50060 28 µg/L Weekly Grab Effluent Temperature(Deg. C) 00010 Weekly Grab Effluent pH(Standard Units) 00400 >6.0 and<9.0 S.U. Week Iv Grab Effluent Ammonia-Nitrogen (mg/L) C0610 2/month Composite Effluent TotalPhosphorus(mg/L) C0665 Semi-annually Composite Effluent TotalNitrogen (mg/L) C0600 Semi-annually Composite Effluent Footnotes: 1. Beginning on the effective date of this permit,submit discharge monitoring reports electronically using NC DWR's eDMR application system.See Special Condition A. (3.). 2. Limit and monitoring apply only if the facility uses chlorine or chlorine derivatives that are eventually discharged.The Division shall consider compliant all effluent TRC values reported below 50 µg/L. 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 are reported below 50 µg/L. Condition:The Permittee shall discharge no floating solids or foam visible in other than trace amounts. Part I,Page 3 Permit NCO024295 A. (2.)EFFLUENT LIMITS AND MONITORING REQUIREMENTS(0.460 MGD) [15A NCAC 02B.0400 et seq.,02B .0500 et seq.] wwTP Class WW-2 [15A NCAC 08G.0302] Beginning upon expansion above 0.360 MGD and lasting until expiration, the permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges shall be limited and monitored,and reported 1 by the permittee as specified below: EFFLUENT EFFLUENT LIMITS MONITORING REQUIREMENTS CHARACTERISTICS Monthly Daily Measurement Sample Sample Parameter Parameter Code Average Maximum Frequency Type Location Flow 50050 0.460 MC) Continuous Recorder Influent or Effluent BOD5(20Deg.C) C0310 30.0 mg/L 45.0 mg/L Weekly Composite Effluent Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent FecalColiform(geometric mean) 31616 200/100m1 4(10/100m1 Weekly Grab Effluent TotalResidual Chlorine 2 50060 28 µg/L Weekly Grab Effluent Temperature(Deg. C) 00010 Weekly Grab Effluent pH (Standard Units) 00400 >6.0 and<9n c IT. Weekly Grab Effluent Ammonia-Nitrogen (mg/L) C0610 2/month Composite Effluent TotalPhosphorus(mg/L) C0665 Semi-annually Composite Effluent TotalNitrogen (mg/L) C0600 Semi-annually Composite Effluent Footnotes: 3. Beginning on the effective date of this permit,submit discharge monitoring reports electronically using NC DWR's eDMR application system.See Special Condition A. (3.). 4. Limit and monitoring apply only if the facility uses chlorine or chlorine derivatives that are eventually discharged.The Division shall consider compliant all effluent TRC values reported below 50 fig/L. 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 are reported below 50 µg/L. Condition:The Permittee shall discharge no floating solids or foam visible in other than trace amounts. Part I,Page 4 Permit NC0024295 A. (3.)ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-215.1(b)] Federal regulations require electronic submittal of all discharge monitoring reports(DMRs) and program reports. The fmal 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 fast 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. Part I,Page 5 Permit NC0024295 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. The permittee may seek an electronic reporting waiver from the Division (see"How to Request a Waiver from Electronic Reporting"section below). 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity(EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data[see 40 CFR 127.2(b)]. EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reportingtool will be available as well. Information on EPA's NPDES P Electronic Reporting Rule is found at: https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-d ischarge- elimination-system-npd es-electronic-reporting-rule Electronic submissions must start by the dates listed in the"Reporting Requirements" section above. 3. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty(60)days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time,monitoring data and reports shall be submitted electronically to the Division unless the permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http://deu.nc.gov/about/divisions/water-resources/edmr Part I,Page 6 Permit NC0024295 4. Signatory Requirements [Supplements Section B. (11.)(b) and Supersedes Section B. (11.) kill All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,Section B.(11.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (11.)(b). A person,and not a position, must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account,please visit the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that quaked 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. 1 am aware that there are significant penalties for submitting false information, including the possibility offines and imprisonment for knowing violations." 5. Records Retention [Supplements Section D.(6.)l The permittee shall retain records of all Discharge Monitoring Reports,including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time[40 CFR 122.41]. Part I,Page 7 NC DEQ/DWR/NPDES FACT SHEET FOR NPDES PERMIT RENEWAL NPDES PERMIT NC0024295 Facility Information Applicant: Carolina Water Service Inc. of NC Facility Name: Connestee Falls WWTP Applicant Address: P.O.Box 240908,Charlotte,NC 28224 Facility Address: 183 Connestee Utility Dr.,Brevard,NC 28712 704-319-0523;Tony Konsul,Operations Officer Facility Contact Info: [Tony.Konsul@carolinawaterservicenc.com] Permitted Flow 0.360 MGD/0.460 MGD Type of Waste: 100%domestic wastewater Facility/Permit Status: Class II(Phased-0.30 MGD,0.46 MGD)Renewal/expansion County: Transylvania Miscellaneous Receiving Stream: French Broad Regional Office: Asheville River Stream Classification: B;Tr 8-Digit HUC: 06010105 303(d)Listed? No Permit Writer: Joe Corporon Subbasin: 04-03-01 Date: 12Jan2021 Stream Index: 6-(1). Drainage Area(mi2): 140 Summer 7Q 10(cfs) 99 Winter 7Q10(cfs): 124 * AMP) Average Flow(cfs): 451 IWC(%): 0.5 (at 0.3 MGD) Lai 35° 11' 16"N Long. 82° 43'50"W 0.7(at 0.46 MGD) RENEWAL OVERVIEW: • Connestee Falls WWTP is a minor, 100%domestic WWTP serving approximately 1,033 homes, or an estimated 2,583 persons of the Connestee Falls residential development in Transylvania County. • This renewal documents a Change of Ownership from Transylvania Utilities to Carolina Water Service Inc. of Carolina. The current permit expired on 30Sep2020.The new Permittee submitted a renewal application (Form D)dated 30Jan2020,received by the Division on 03Feb2020. • The renewal application informed DWR that the Permittee completed a partial flow expansion achieved in accord with Authorization to Construct No.024295A02 (05Dec2017). The facility's new treatment works has a design flow 0.360 MGD. • It follows therefore,that this permit continues to authorize a potential future expansion to 0.460 MGD as previously permitted, i.e.,this remains a phased-flow permit. Carolina Water Service, Inc.of Carolina--Fact Sheet NPDES Renewal, February 2021 Page 1 of 3 RECEIVING STREAM: • The facility discharges treated wastewater via Outfall 001 to the French Broad River in the French Broad River Basin(subbasin 04-03-01, HUC 06010105). • The receiving stream is classified B-Tr waters [stream segment 6-(1)]; it is not listed on the 2018 final 303(d) list. FACILITY PERFORMANCE/COMPLIANCE REVIEW: DMR Data have been reviewed for the period of Jan2018 through Jan2021. Table 1.Lists average and maximum effluent data collected from 1/2012 through 9/2015. Parameter Flow BOD5 TotalResidual Ammonia Total Suspended Fecal Chlorine Nitrogen Solids Coliform (MGD) (mg/L) (ug/L) (mg/L) (mg/L) #/100m1 average 0.235 3.60 10.33 1.74 5.39 4.37 maximum 0.492 19.3 34 14.8 32.2 61 Limit(MA) 0.3 30 28(DM) 30 200 Parameter _ TotalNitrogen TotalPhosphorus (mg/L) (mg/L) average 2.86 1.4 maximum 4.12 2 Limit DM: Daily Maximum;MA:Monthly Average MONTH YEAR PARAMETER VIOLATIONDATE VIOLATION COMMENT 12 2020 Coliform, Fecal MF, MFC 12/26/2020 Broth,44.5 C 1 2019 Chlorine, Total Residual 01/22/2019 Below DWQ Compliance Level 3 2019 Chlorine, Total Residual 03/05/2019 Below DWQ Compliance Level 6 2019 Chlorine, Total Residual 06/24/2019 Below DWQ Compliance Level 7 2019 Chlorine, Total Residual 07/22/2019 Below DWQ Compliance Level 7 2019 Chlorine, Total Residual 07/09/2019 Below DWQ Compliance Level 7 2019 Chlorine, Total Residual 07/08/2019 Below DWQ Compliance Level 8 2019 Chlorine, Total Residual 08/05/2019 Below DWQ Compliance Level 9 2019 Coliform, Fecal MF, MFC 09/28/2019 Construction activities to switch Broth,44.5 C over to new facility. 9 2019 Coliform, Fecal MF, MFC 09/21/2019 Construction activities to switch Broth,44.5 C over to new facility. 3 2017 Coliform, Fecal MF, MFC 03/21/2017 Broth,44.5 C Coliform, Fecal MF, MFC 03/14/2017 3 2017 Broth,44.5 C • Permit Violations. Tim Heim of ARO inspected the facility on 21 Jan2021. At the time of inspection, no violations of permit conditions were observed,noting further that this is a relatively new state of the art facility. Carolina Water Service, Inc.of Carolina--Fact Sheet NPDES Renewal, February 2021 Page 2 of 3 PERMIT LIMIT DEVELOPMENT(New Conditions for 0.360 MGD and Phased II expansion to 0.460 MGD): • Limits and monitoring conditions remain the same for renewal. The expansion from 0.300 the 0.360 MGD has not affected limits and monitoring conditions. Likewise,potential expansion to 0.460 MGD flow(renewal Phase II)remains the same as the previous permit [see permit sections A,(1.) and A. (2.)]. • For previous limit and monitoring requirements development and review of the Engineers Alternatives Analyses (EAA),see previous Fact Sheet(2017). SUMMARY OF PROPOSED CHANGES: The following permit changes are proposed for this permit renewal: 1. Revised permit Sections A, (1.)and A. (2.)to reflect flows of 0.360 and 0.460 MGD 2. Updated treatment-works components(see Supplement to Permit Cover Sheet) 3. Updated permit text in accord with current permitting guidance. PROPOSED SCHEDULE FOR PERMIT ISSUANCE: Draft Permit to Public Notice [tentative]: 23Feb202 1 Permit Scheduled to Issue [tentative]: 02Apr202 1 NPDES Contact: If you have any questions on any of the above information or on the attached permit, please contact Joe R.Corporon [joe.corporon@ncdenr.gov] Signature Date 17Feb2021 Carolina Water Service,Inc.of Carolina--Fact Sheet NPDES Renewal,February 2021 Page 3 of 3