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HomeMy WebLinkAboutNC0061719_More Information Received_20190110 A 0 A . _.-= ,.. RECEfVED/DENR/DWR JAN 16 2019 January 10,2019 Water Resources Mr.John Hennessy, Supervisor Permitting Section Compliance and Expedited Permitting Unit DWR,NCDEQ 1617 Mail Service Center Raleigh,NC 27699-1617 Re: Woodlake Country Club WWTP;NPDES Permit NC0061719 Moore County Dear Mr.Hennessy: In May 2018, Aqua North Carolina, Inc. (ANC) completed upgrades to the Woodlake Country Club WWTP.ANC is formally requesting a minor permit modification to update the list of facility components contained in the permit.The changes requested are listed in bold below.In addition,Ultraviolet Disinfection (UV)was installed and is operational. Since recent changes to the disinfection rule no longer require that UV facilities monitor for Total Residual Chlorine (TRC)unless a chlorine derivative is being utilized for disinfection,we formally request that this requirement to monitor for TRC be made optional. In addition to the facility upgrades,ANC has reviewed the existing permit and is requesting that monitoring requirements be updated to reflect existing operations and recent compliance history. Per the permit cover letter dated July 11, 2011, North Carolina Department of Environment and Natural Resources increased fecal coliform and TRC monitoring requirements due to a poor compliance history prior to permit issuance. Since that date, the compliance record at Woodlake has significantly improved and ANC has performed significant upgrades at the facility. ANC requests that the monitoring requirements be reduced to reflect a compliant Grade II WWTP and reduce fecal coliform monitoring to lx/week per the requirement. ANC further requests that TRC be reduced unless a chlorine derivative is utilized, and the requirement would be lx/week. Furthermore, it was noted that ANC is required to monitor for fluoride due to the discharge of Water Treatment Plant residuals generated at ANC facilities. ANC does not feed fluoride at any water treatment plants within North Carolina;therefore,we request that this monitoring requirement be removed to reflect this requirement. List of facility components that require updating: - Manual bar screen - Extended aeration system - Secondary clarification - Ultra-violet Disinfection - Chlorination - De-chlorination - Post-aeration - Aerobic sludge digester 202 MacKenan Court, Cary,NC 27511 • AquaAmerica.com Page Two Mr. John Hennessey January 10,2019 If there are any questions or concerns with our request,please do not hesitate to contact me at aaowens(aiaquaamerica.com or 919-653-6965. Best regards, &4.q.k_ lv Amanda Berger Manager,Environmental Compliance cc: Shannon Becker,President Joseph Pearce PE,Director of Operations Rob Krueger, Central Area Manager Trent Allen,NC-DEQ, DWR Supervisor 2