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Home My WebLink AboutWQ0032289_Application_20230710From: Hannum, Alys K To: Thornbura. Nathaniel Subject: FW: [External] Reclaimed Permit Modification - WQ0032289 Date: Monday, July 10, 2023 7:46:01 PM Attachments: Final Permit 2023 limits paae.odf imaae002.r)na Modification request; came from the proper person this time. Alys Hannum (she/her) Environmental Specialist 11 Division of Water Resources - Non -Discharge Branch North Carolina Department of Environmental Quality Office: (919) 707-3657 alys.hannum(a)deq.nc.gov Effective May 18, 2023, the Non -Discharge Branch has multiple engineering vacancies. As a result, our response and review times will be slower than normal. Thank you in advance for your patience. NORTH CAROLINAD_ E Q H Department of Environmental Quality f Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Seann Byrd <seann.byrd@hollyspringsnc.gov> Sent: Monday, July 10, 2023 4:04 PM To: Hannum, Alys K <alys.hannum@deq.nc.gov> Cc: Foster, Karen <karen.foster@hollyspringsnc.gov>; Aaron Baker <aaron.baker@hollyspringsnc.gov>; Kendra Parrish <kendra.parrish@hollyspringsnc.gov> Subject: [External] Reclaimed Permit Modification --reduced monitoring alignment CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button located on your Outlook menu bar on the Home tab. Hello Alys, I believe Karen Foster has reached out to you regarding modification of our reclaimed permit to match the reduced monitoring on our NPDES permit. The Town of Holly Springs was recently approved for reduced monitoring of NPDES permit NC0063096. Just sending this email as a follow-up on that discussion. Below are the parameters for which we are requesting modification. Also, see attached for new NPDES permit limits page with reduced monitoring requirements. BOD- now 2x per week Coliform, Fecal- now 2x per week Nitrogen, Ammonia Total — now 2x per week Solids, Total Suspended- now 2x per week Thank you, IQ S}Ncs Seann Byrd Deputy Director of Utilities and Infrastructure Services Town of Holly Springs PO Box 8 1 128 S Main Street I Holly Springs, NC 27540 • Office: (919) 577-3151 Nvr[� sea nn.byrd(cphollysspringsnc.goy Warning: This email is subject to disclosure under the North Carolina Public Records Law (NCGS 132- 1). Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. DocuSign Envelope ID: FFFD8DC8-4333-4451-9719-CE2F3103312C Permit NCO063096 PART A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (6.0 MGD) [15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade IV Biological Water Pollution Control System [15A NCAC 08G .0302] (a.) During the period beginning on the effective date of the permit and lasting until expansion to 8.0 MGD or permit expiration, whichever is sooner, the Permittee is authorized to discharge treated municipal and industrial wastewater from Outfall 001. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT LIMITS MONITORING REQUIREMENTS PARAMETER Monthly Weekly Daily Measurement Sample Sample Parameter Code Average Average Maximum Frequency Type Location Flow 50050 6.0 MGD Continuous Recording Influent or Effluent BOD, 5-day, 20°C2 C0310 5.0 mg/L 7.5 mg/L 2/week 3 Composite Influent & (Apr 1 - Oct 31) Effluent BOD, 5-day, 20°C2 C0310 10.0 mg/L 15.0 mg/L 2/week 3 Composite Influent & (Nov 1 - Mar 31) Effluent Total Suspended Solids (TSS) 2 C0530 30.0 mg/L 45.0 mg/L 2/week 3 Composite Influent & Effluent Ammonia (NIA as N) C0610 1.0 mg/L 3.0 mg/L 2/week 3 Composite Effluent (Apr 1 - Oct 31) Ammonia as C0610 2.0 mg/L 6.0 mg/L 2/week 3 Composite Effluent (Nov 1 - Mar 31) Dissolved Oxygen (DO) 00300 Daily Average > 7.0 mg/L Daily Grab Effluent pH 00400 Between 6.0 and 9.0 Standard Units Daily Grab Effluent Fecal Coliform 31616 200/100 mL 400/100 mL 2/week 3 Grab Effluent (geometric mean) Temperature, °C 00010 Monitor and Report Daily Grab Effluent Total Residual Chlorine' 50060 1 1 17 µg/L Daily Grab Effluent Conductivity, µmhos/cm 00094 Monitor and Report Daily Grab Effluent Total Kjeldahl Nitrogen (TKN), 00625 Monitor and Report Weekly Composite Effluent mg/L Nitrate -Nitrite Nitrogen 00630 Monitor and Report Weekly Composite Effluent (NO3-N + NO2-N), mg/L Total Nitrogen 5 C0600 5.0 mg/L Weekly Calculated Effluent Total Phosphorus C0665 0.5 mg/L Weekly Composite Effluent Total Orthophosphate 70507 0.27 mg/L Weekly Composite Effluent Total Hardness 6 (as CaCO3), 00900 mg/L Monitor and Report Quarterly Composite Effluent Total Chlorides, mg/L 00940 Monitor and Report Monthly Composite Effluent Chronic Toxicity 7 TGP3B Monitor and Report Quarterly Composite Effluent 1,4-Dioxane $ 82388 Monitor and Report Monthly Grab Effluent PFAS, ng/L various Footnote 9 Quarterly Grab Effluent Effluent Pollutant Scan NCO] Monitor and Report Footnote 10 Footnote 10 Effluent Footnotes on next page. 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