Department of Environmental Quality

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Municipal Separate Storm Sewer System (MS4s) Permits:
UPDES Permits

Expand the menus, below, to find MS4 permit details, forms, downloads, FAQs, templates, contact information, and other useful resources.

A MS4 is defined as a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains). It also is used to describe the owner/operator of that system. Each MS4 has their own operator that is responsible for maintaining and controlling pollutants that enter their system. Here is a list of permitted MS4 Operators within the State of Utah: Utah Permitted MS4 Operator List

Any permitted MS4 operator is regulated under UPDES permits listed below. Depending on the entity type and implementation date, these MS4 permits are split into two categories: Individual or General. Individual permits have guidelines that are tailored to a specific MS4 Operator. General permits have standard guidelines that cover many MS4 Operators. In Utah, Individual MS4 Permittees include: Salt Lake City, Salt Lake County, and Utah Department of Transportation. Salt Lake County is covered under the Jordan Valley Municipalities Permit with many co-permittees. Small MS4 General permittees include: any Small MS4 Operator in Utah not covered under the other permits.

Salt Lake County

Salt Lake City

UDOT

Resources (Specific to Individual MS4s)

  • Annual Report Form
    The MS4 Annual Report Form has been developed by EPA to obtain various MS4 program data. It was updated in 2024 to include the E. coli TMDL Compliance Plan.  If you find you need additional space for your responses, please use Section 11, Additional Information.
  • Individual MS4 Permit Application 
    An individual MS4 Permit Application  should be submitted to the DWQ for coverage under the UPDES permit program.

General Resources

FAQ

What does it mean to be a Phase I or Phase II MS4?

In 1990, EPA established Phase I of the National Pollutant Discharge Elimination System (NPDES) stormwater program. The Utah Pollutant Discharge Elimination System (UPDES) is the Utah version of NPDES, which is the permit system mandated by § 402 of the Clean Water Act to control pollutants in waters of the U.S., including storm water. The Phase I program for MS4s requires operators of medium and large MS4s (generally those that serve populations of 100,000 or greater) to implement a stormwater management program as a means to control polluted discharges from these MS4s.  

The Phase II Rule extends coverage of the UPDES stormwater program to certain small MS4s that are located within an urbanized area of more than 50,000 population. A small MS4 is any MS4 not already covered by the Phase I program. The Phase II Rule automatically covers on a nationwide basis all small MS4s located in urbanized areas, and those small MS4s located outside of those areas that the State of Utah designates.

Contacts

Manager
Jeanne Riley
jriley@utah.gov
(801) 536-4369

Municipal Storm Water
Kelsee York
kcyork@utah.gov
(385) 260-2760

Construction Storm Water
Jordan Bentley
jkbentley@utah.gov
(385) 552-0539

Industrial Storm Water
Jordan Bryant
jtbryant@utah.gov
(385) 272-4894

Stormwater Specialist
Carl Adams
carladams@utah.gov
(385) 382-6685

Stormwater Database
WQInfoData@utah.gov
(801) 536-4300


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