DWQ-2024-007592

October 30, 2024
DIVISION OF WATER QUALITY
UTAH DEPARTMENT OF ENVIRONMENTAL QUALITY
PUBLIC NOTICE OF MODIFICATION OF THE SALT LAKE CITY INDIVIDUAL
MUNICIPAL SEPARATE STORM SEWER SYSTEM PERMIT
PURPOSE OF PUBLIC NOTICE
The purpose of this public notice is to declare the state of Utah’s intention to modify a Utah Pollutant Discharge Elimination System (UPDES) permit under authority of the Utah Water
Quality Act, Section 19-5-104 and 107, Utah Code Annotated 1953, as amended. Said “permit” refers to UPDES permit and the statement of basis, including the total maximum daily loads
(TMDLs) if applicable, as per section 303 (d) of the Federal Clean Water Act (CWA).
PERMIT INFORMATION
PERMIT NAME:Salt Lake City Municipal Separate Storm Sewer System (MS4) UPDES Permit
PERMIT NO:UTS000002
BACKGROUND
The Federal Clean Water Act requires that storm water discharges from certain types of facilities be authorized under stormwater discharge Permits. (See 40 CFR 122.26.) The goal of the
stormwater Permits program is to reduce the amount of pollutants entering streams, lakes and rivers as a result of runoff from residential, commercial and industrial areas. The original
1990 regulation (Phase I) covered municipal (i.e., publicly-owned) storm sewer systems for municipalities over 100,000 population. The regulation was expanded in 1999 to include smaller
municipalities. This expansion of the program to include small MS4s is referred to as Phase II. Salt Lake City encompasses approximately 110 square miles within the lower Jordan River
Basin and is comprised of a population in excess of 186,440. Salt Lake City is defined as a medium municipality (Utah Administrative Code “UAC” R317-8- 1.6(7)) and is required to maintain
a Utah Pollutant Discharge Elimination System (UPDES) storm water permit (UAC R317-8-11.3(1)(a)).
The State of Utah was granted primacy in the National Pollutant Discharge Elimination System (NPDES) program by USEPA in 1987. In Utah, storm water discharge Permits are issued by the
Director. Utah’s program is known as the Utah Pollutant Discharge Elimination System (UPDES) Program. The requirements of this Permit are intended to reduce the discharge of pollutants
to the maximum extent practicable and meet water quality standards through the development and implementation of a Storm Water Management Program (SWMP).
This Permit serves as a modification of the previous Salt Lake City Municipal Separate Storm Sewer (MS4) Permit, UTS000002, issued August 16, 2023. This Permit is intended to cover new
or existing discharges composed entirely of stormwater from the Salt Lake City metropolitan area, which is required by the State to obtain permit coverage.
The significant changes made since the most recent Permit Renewal (June 22, 2021) and Modification (August 16, 2023) were made as a result of legislation which impacted procedures for
MS4 oversight authority and inspections. See Utah Code § 19-5-108.3.PUBLIC COMMENTS
During the public comment period provided under Utah Administrative Code (UAC) 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 UAC R317-8-6.12. Public comments are invited any time prior to of the close of business
on November 30, 2024. Written public comments can be submitted to: Kelsee York, General Permitting Section, Utah Division of Water Quality, PO Box 144870, Salt Lake City, Utah 84114-4870
or by email at:[e-mail]. After considering public comment the Utah Water Quality Board may execute the permit change, revise it, or abandon it.The permit and associated documents
are available for public review under “Public Notices” at https://deq.utah.gov/division-water-quality. If internet access is not available, a copy may be obtained by calling Kelsee York
at 385-260-2760.