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Home My WebLink AboutNC0075701_20180905_FactSheetFACT SHEET FOR EXPEDITED PERMIT RENEWALS This form must be completed by Permit Writers for all expedited permits which do not require full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc) that can be administratively renewed with minor changes, but can include facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance concerns). Basic Information for Expedited Permit Renewals Permit Writer / Date Brianna Young 9/5/18 Permit Number NCO075701 Facility Name / Facility Class Tuckertown WTP / PC -1 Basin Name / Sub -basin number Yadkin Pee -Dee / 03-07-08 Receiving Stream / HUC UT to Yadkin River (including lower portion of High Rock Lake, Tuckertown Lake, Badin Lake)/0304010306 Stream Classification / Stream Segment WS -IV, B; CA / 12-(124.5) Does permit need Daily Maximum NH3 limits? N/A Does permit need TRC limits/language? Already present Does permit have toxicity testing? IWC (%) if so Yes; 100% (capped at 90%) Does permit have Special Conditions? Yes; added tox special condition in renewal Does permit have instream monitoring? Yes; added upstream hardness in renewal Is the stream impaired (on 303(d) list)? Yes (see below and permit file for more details Any obvious compliance concerns? Yes; see compliance history below Any permit mods since last permit? Yes; see facility overview below New expiration date 1/31/2023 Comments on Draft Permit? Yes (see below) Facility Overview: The Town of Albemarle operates the Tuckertown WTP, an 8.2 MGD capacity conventional drinking water plant, to provide potable water to the City of Albemarle and discharges decanted backwash water. Alum and polymer are added as part of the drinking water flocculation process and accumulate with other capture compounds on the sand filters. Caustic is added for pH adjustment. As required the sand filters are backwashed with chlorinated/fluorinated water and run through a series of decant/settling processes before being discharge. Sodium bisulfate is added for dechlorination. The City of Albemarle maintains a spray field under permit WQ0000759 for sludge disposal. An Authorization to Construct permit was issued in June 2010 to modify the existing Caustic and Sodium Bisulfate chemical feed systems. The Engineer's Certificate was received in September 2011 certifying completion of the final construction to the chemical feed systems. In May 2014, the fluoride solution storage tank manway seal was found dripping and ultimately entered the containment area drain which directly discharges into the decant system. The result was a significantly high fluoride measurement reported on the DMR. 303(d) listing: The stream segment 12-(124.5) itself is not listed; however, the stream segment below includes the section of the Yadkin River the UT discharges to. 12-(124.5)c YADKIN RIVER (including Tuckertown Lake, Badin L From the mouth of Cabin Creek to Badin Lake 7,937.8 FW Acres WS-IV,B;CA IRCategory: ACS: Parameter Of Interest: Collection Year: 303(d) yr: 5 EC pH (9.0, AL, FW) 2012 2014 The stream segment 124124.5) is also impaired for: 12-(124.5)a YADKIN RIVER (including lower portion of High Roc From a point 0.6 mile upstream of dam of High Rock Lake to High Rock Dam 10.8 FW Acres WS-IV,B;CA IRCategory: ACS: Parameter Of Interest: CY: 303(d): 5 EC Chlorophyll a (40 µg/1, AL, NC) 2012 2008 5 EC PCB Fish Tissue Advisory (Advisory, FC, NC) 2012 2014 12-(124.5)d YADKIN RIVER (including Tuckertown Lake, Badin L Badin Lake 6,847.0 FW Acres WS-IV,B;CA IRCategory: ACS: Parameter Of Interest: CY: 303(d): 5 EC PCB Fish Tissue Advisory (Advisory, FC, NC) 2012 2010 Compliance History (February 2013 to March 2018): • Numerous TRC daily max exceedances - most BPJ'd • 1 enforcement, 1 NOD, and 4 NOVs for TRC daily max exceedances • Numerous flow monthly average exceedances - most BPJ'd • 1 NOV for monthly flow average exceedance • 1 NOD and 2 NOVs for pH daily max exceedances • 3 enforcements for TSS daily max exceedances • 2 enforcement for TSS monthly average exceedances • 1 NOV for TSS monitoring frequency violation Failed 5 of last 12 toxicity tests (failed 5 of last 6) RPA: Maximum monthly average flow from February 2015 to January 2018: 0.142833 MGD • Monitoring for aluminum maintained since aluminum is used in water treatment process • Monitoring for manganese maintained since facility discharges to WS -IV waters and levels greater than detect • Monitoring for iron removed per current WTP guidance • No RP for zinc, but predicted max > 50%, therefore monitoring reduced to quarterly • No RP for fluoride, but predicted max > 50%, therefore monitoring reduced to quarterly o May 2014 value of 23.3 mg/L removed from analysis — file notes indicate (via email 9/12/2014) facility had a leak in the fluoride storage tank that was contained by the curbing around the tanks which subsequently drain to the lagoon permitted by the NPDES permit; storage tank was repaired • RP for copper, therefore limits added to permit NCG59 General Permit Eligibility: • Conventional treatment used, therefore they are eligible • Failed 5 of last 12 toxicity tests (5 of last 6), therefore they are not eligible • Conclusion: They are not eligible for the NCG59 Changes from previous permit to draft: • Added eDMR footnote in A(1) and language as A(4) • Updated outfall map • Added regulatory citations • Added parameter codes in A(1) • Added address on cover sheet and updated address on Supplement to Permit Cover Sheet based on renewal application • Updated language on Supplement to Permit Cover Sheet per current WTP guidance • Added units of measure in A(1) • Removed flow limit in A(1) per current WTP strategy • Updated format of pH limits in A(1) to match language in other permits • Added turbidity monitoring in A(1) per current WTP strategy; no explanation found for why it was removed in the previous permit • Removed monitoring for calcium and magnesium in A(1) as they are no longer required per current WTP strategy • Monitoring for TRC reduced to 2/month in A(1) per current WTP strategy • Monitoring for ammonia nitrogen reduced to quarterly in A(1) per current WTP strategy • Monitoring for iron removed in A(1) per WTP guidance o Monitor only in previous permit o No water quality standard exists anymore • Monitoring for total zinc reduced to quarterly in A(1) based on RPA • Limits added for total copper in A(1) based on RPA • Quarterly monitoring for total hardness added in A(1) for effluent and upstream per current WTP strategy • Put "Monitor & Report" for tox testing in A(1) per WTP guidance • Removed former flow footnote #1 in A(1) that stated "Monitoring requirement is required beginning on July 1, 2009 to allow time for electrical connection to flow meter" as deadline has passed • Merged former TRC footnotes #2 and #3 in A(1) into one footnote per current formatting and updated to reflect current language used • Removed former footnote #4 in A(1) that stated "Parameters should be monitored in conjunction with toxicity test" as this is no longer required • Removed former footnote #5 in A(1) that stated "Fluoride monitoring applies if the facility backwashes with fluoridated, finished water" as renewal application indicates fluoride has the potential to be discharged therefore monitoring is required • Removed former footnote #6 in A(1) that stated "Zinc should only be monitored if a Permittee uses zinc orthophosphate as a corrosion inhibitor" as this language does not go into permits • Updated toxicity footnote in A(1) to match format used in other permits • Updated tox language in A(2) to current language used • Added special toxicity condition as A(3) for tox failures Changes from draft to final: • Added special condition under effluent table in A(1) based on PWS comments: Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the discharge for the period of time that the sample represents. If effluent water characteristics fluctuate such that a single sample cannot represent the period of time that the sample is intended to represent, additional samples shall be collected. Comments received on draft permit: • Clinton Cook (PWS via email 7/13/18): Samples should be collected and measurements taken, as required by the permit, shall be representative of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the discharge for the period of time that the sample represents. If effluent water characteristics fluctuate such that a single sample cannot represent the period of time that the sample is intended to represent, additional samples shall be collected.