Utah STORMnet

Utah Stormwater Training, Outreach, Research, and Monitoring Network

The Utah Stormwater Training, Outreach, Research, and Monitoring Network (STORMnet) provides training and research for the Intermountain West to prepare Utah for future stormwater challenges associated with the expansion of Utah's urban areas.

Stormwater Sources and Permits

The Utah Pollutant Discharge Elimination Systems (UPDES) is a permitting system that controls pollutants in stormwater. The Utah Storm Water Program is part of the UPDES system and regulates the discharge of stormwater from three major sources:

  • Municipal Separate Storm Sewer Systems (MS4s)
  • Construction Activities
  • Industrial Activities
Stormwater managers and operators may be required to obtain a permit according to the source they manage. The goal of permitting is to prevent harmful pollutants from entering Utah's waterbodies via stormwater runoff, which is a major source of pollution in and near developed areas.

4 Stormwater Program Areas

Click the tabs below to discover information about a stormwater program relevant to you.

Drains to Waterways storm drain
Municipal Separate Storm Sewer Systems

Cities, counties, and other public entities commonly utilize municipal separate storm sewer systems (MS4) to collect and convey stormwater runoff in sewer drainage systems that are separate from sanitary sewer systems. Water flowing through the sanitary sewer system goes to treatment facilities where it is cleaned before discharging to waterbodies. However, water flowing through MS4s usually drain directly to waterways without being treated. In order to protect and prevent harmful urban pollutants from entering waterbodies, municipalities of certain sizes must obtain MS4 permits and regulate the discharge of stormwater.


SWPP Site
Construction

When it rains, water flows over soil surfaces on construction sites, creating stormwater runoff. This runoff picks up loose soils, debris, and other pollutants and transports them to nearby streams, rivers, and lakes. Proper stormwater controls are critical for stopping these pollutants from entering waterways and the surrounding environment to protect Utah's water.

Construction activities that disturb one or more acres of land must obtain a stormwater permit to be authorized under the Utah Pollutant Discharge Elimination System (UPDES).

Smokestack near Great Salt Lake
Industrial

Industrial facilities such as manufacturing facilities, mining operations, landfills, steam electric plants, automotive recyclers, waste and metal recycling, larger wastewater treatment plants, and transportation facilities are typically required to obtain  permits for stormwater discharges associated with industrial activities. These permits require the creation of a Storm Water Pollution Prevention Plan (SWPP) for each facility covered under the permit.

The SWPP identifies potential sources of pollution that may impact stormwater quality. It also establishes a plan for the implementation of practices to reduce pollution impacts and compliance with the requirements of the permit.

Residential stormwater flooding
Residential

Pollutants such as heavy metals, oil and grease, pesticides, fertilizers, road salts, excess sediment, and pathogens build up in urban and suburban areas from construction, industrial activities, vehicles, lawn care, pet waste, building materials, and septic systems. When water accumulates on urban surfaces such as roads, sidewalks, and parking lots, it creates stormwater runoff that picks up these pollutants and transports them to nearby waterbodies.

Urban pollutants and contaminants can include a variety of compounds that are harmful to the people, plants, fish, and wildlife that use or consume water from impacted waterbodies.
Learn what you can do on your property to limit stormwater pollution and keep our waterways clean and healthy.