DWQ-2025-004932

June 17, 2025Jacob Sharp, P.E., District ManagerCastle Valley Special Service DistrictPO Box 87720 South 100 East,Castle Dale, Utah [e-mail] EmailSubject:Public Notice
of RenewalUPDES Permit No. UT0021296Castle Valley SSD - Huntington Lagoons Dear Mr. Sharp:Enclosed is a draft copy of the renewalUPDES Permit No. UT0021296, Fact Sheet, Waste Load Analysis,
and the Public Notice information for the facility referenced above. This information is being made available online at https://deq.utah.gov/water-quality/water-quality-public-notices
during the 30-day public comment period as appropriate.Thank you for your efforts to help protect Utah’s water quality. If you have any questions with regard to this matter, please contact
Daniel Griffin 536-4387 or [e-mail] .Sincerely,Danielle LenzDanielle Lenz, ManagerUPDES Individual Permit SectionDL/DG/cjhEnclosures:1. HuntingtonDRAFT UPDES Permit 2025 (DWQ-2025-00)2.
HuntingtonDRAFT UPDES Fact Sheet 2025 (DWQ-2025-00)3. HuntingtonDRAFT WLA 2025 (DWQ-2025-00)4. HuntingtonUPDES PN Document 2025 (DWQ-2025-00)Cc:Via Email w/Enclosures Amy Maybach, US
EPA Region VIIIStephanie DeJong, US EPA Region VIII`Michael Boeglin, US EPA Region VIIIOrion Rogers, Southwest Health Department, [e-mail] Page, P.E., DEQ District Engineer,
Southwest Health Department, [e-mail]
Via Email w/out EnclosuresRiley Peck, Utah Division of Wildlife [e-mail] Gipson, Regulatory Office, US Corps of Engineers Chris Merritt, State Historic Preservation
Office DWQ-2025-xxxxxx