DWQ-2025-001763

Official Draft Public Notice Version Month Day, year
The findings, determinations, and assertions contained in this document are not final and subject to change following the public comment period.
FACT SHEET AND STATEMENT OF BASIS
CORINNE CITY CORPORATION
UTAH POLLUTANT DISCHARGE ELIMINATION SYSTEM (UPDES)
UPDES PERMIT MODIFICATION: DISCHARGE, REUSE
UPDES PERMIT NUMBER: UT0020931
MINORMUNICIPAL
FACILITY CONTACTSPerson Name:JL NicholsPosition:Public Works DirectorPhone Number:435-720-7961Permittee:Corinne City CorporationFacility:Corinne Wastewater Lagoon SystemMailing Address:2420
North 4000 WestPO Box 118Corinne, UT 84307
Actual Address:½ mile south of Corinne City, in Box Elder County
Facility Phone Number:[phone]
DESCRIPTION OF PERMIT MODIFICATION
This modification is in response to a request from Corinne City Corporation (Corinne), received by the Division of Water Quality (DWQ) on January 8, 2025, requesting a Compliance Schedule
forbiochemical oxygen demand (BOD5), total suspended solids (TSS), and pH effluent limitations. Corinne is requesting a Compliance Schedule while upgrades are made to the collection
system, which will reduce inflow and infiltration (I&I) to the lagoons. Increased I&I has resulted in numerous effluent violations from Outfall 001 and 001D. DWQ grants this request
based on these improvement efforts. The Compliance Schedule will be effective from the permit modification issuance date until January 1, 2028. The Compliance Schedule will last for
the duration of this UPDES Permit. For the duration of the Compliance Schedule,DWQ will implement interim limitations for the above parameters. The limitations are lower than requested
by Corinne and are based on a review of Corinne’s effluent data for the last five years. The below interim permit limitations and Compliance Schedule are also reflected in Part 1.C.2.a.,
Part 1.C.2.b., and Part 1.C.3. of the Utah Pollutant Discharge Elimination System (UPDES) Permit No. UT0020931. These effluent limitations shall be applied to Outfall 001 and Outfall
001D. Any violation of the Compliance Schedule is a violation of the UPDES Permit.
Permit Limitations:
Compliance Schedule Milestones
Date
Milestone
January 1, 2026
Corinne will submit complete design plans to DWQ. Plans must include updates on construction funding. If plans are submitted and construction beings prior to January 1, 2026, Corinne
shall provide DWQ with construction progress by January 1, 2026.
July 1, 2026
Corinne provides DWQ with construction progress.
January 1, 2027
Corinne provides DWQ with construction progress.
January 1, 2028
Constructions and upgrades are completed. Corinne will meet the final effluent limits.
BOD5 Compliance Schedule
Date
Limit (Weekly Avg.)
Limit (Monthly Avg.)
Approval – December 31, 2027
45 mg/L
65 mg/L
January 1, 2028
35 mg/L
25 mg/L
TSS Compliance Schedule
Date
Limit (Weekly Avg.)
Limit (Monthly Avg.)
Approval – December 31, 2027
45 mg/L
65 mg/L
January 1, 2028
35 mg/L
25 mg/L
pH Compliance Schedule
Date
Limit (Min.)
Limit (Max.)
Approval – December 31, 2027
6.5

9.5
January 1, 2028
6.5
9.0
The changes listed above are the only changes being proposed with this permit modification that are subject to public comment during the public notice period. All other permit effluent
limitations remain unopened and unchanged as appropriate.
PERMIT DURATIONIt is recommended that this permit modification be effective through the current permit expiration date, May 31, 2026.Drafted byJennifer Berjikian, Environmental ScientistPUBLIC
NOTICEBegan: February XX, 2025Ended: March XX, 2025Comments will be received at: 195 North 1950 West PO Box 144870 Salt Lake City, UT 84114-4870During the public comment period provided
under R317-8-6.5, any interested person may submit written comments on the draft permit and may request a public hearing, if no hearing has already been scheduled. A request for a public
hearing shall be in writing and shall state the nature of the issues proposed to be raised in the hearing. All comments will be considered in making the final decision and shall be answered
as provided in R317-8-6.12.ADDENDUM TO FSSOBDuring finalization of the Permit certain dates, spelling edits and minor language corrections were completed. Due to the nature of these
changes they were not considered Major and the permit is not required to be re Public Noticed.Responsiveness SummaryNo comments were received during the public comment period. DWQ-2024-006091