HomeMy WebLinkAboutDWQ-2024-008301November 26, 2024Eric Smirdon, Environmental EngineerBig West Oil LLC333 West Center StreetNorth Salt Lake, Utah 84054eric.simdorn@bigwestoil.comVia EmailSubject:Preliminary Wasteload
AnalysisBig West Oil Permit ModificationDear Mr.Smirdon,
Attached is the requested preliminary wasteload analysis (WLA) for the Big West Oil Permit Modification. WLAs are performed to determine point source effluent limitations necessary to
maintain designated beneficial uses by evaluating the projected effects of discharge concentrations on in-stream water quality. They are based on information available at the time of
development. Concentrations are then compared to numeric water quality standards todeterminetheir acceptability. Please note that this is a preliminary WLA, and the numeric criteria
in this WLA may be modified bynarrative criteria and other conditionsdetermined by the Division of Water Quality (DWQ) staff. The Level II Antidegradation Review (ADR), which is a requirement
for all new discharges, may also have an impact on limitations. Please note that local ordinances may also apply. The attached WLA is outside DWQ’s typical process of developing a Utah
Pollutant Discharge Elimination System (UPDES) Permit. DWQ staff spent 15 hours on this WLA, billed at $115/hour for a total cost recovery sum of $7,798.75. Due to an error in the process,
an Invoice could not be issued for the work, and no payment is due. To proceed with the UPDES Permit process for this project, please submit a UPDES Permit Application and ADR Application.
If you have any questions regarding this matter, please contact Daniel Griffin at (801) 536-4387 or by email at dgriffin@utah.gov.Sincerely,Danielle LenzDanielle Lenz, ManagerUPDES
Individual Permit SectionDL/DG/chEnclosures: 1. PreliminaryWLA (DWQ-2024-007178)
Cc:Via Email with EnclosuresJay Clark, Davis County Health Department, jsclark@co.davis.ut.us
DWQ-2024008