Storm Water Management Program Update

Formal Public Notice of Comment period open June 8th – July 8th 2022

Public Input Requested for MDT's Draft Revised Storm Water Management Program

Storm Water Runoff and Protecting State Waters

Why should Montanans care about storm water? Montana’s streams, lakes, and wetlands are valuable resources that contribute to our economy, public health, and ecosystems. No matter where you live in Montana – when it rains, the water needs to go somewhere and can runoff directly to state surface waters. Runoff can pick up sediments, nutrients, chemicals and pathogens and pollute our surface waters, negatively impacting water quality. To learn more about storm water, please visit MDT’s Stormwater Information page.

MDT's Storm Water Management Program

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To protect Montana’s surface water resources, MDT implements a statewide Storm Water Management Program (SWMP). This program is intended to reduce the discharge of pollutants from our transportation infrastructure into local surface waters. Components of this program include:

  • Public education to raise awareness of behaviors and activities that impact storm water and to motivate action to reduce pollution;
  • Strategies to involve key target audiences in the development and implementation of the SWMP;
  • Detection and elimination of illicit (i.e. unauthorized) discharges;
  • Reduction of pollutant runoff from construction activities;
  • Control of storm water runoff from new development and redevelopment projects; and
  • Implementation of an operation and maintenance program, including training, that prevents or reduces pollutant runoff from MDT operations.

In accordance with regulatory requirements, MDT’s SWMP is specifically targeted to control storm water pollutant discharges in the following urban areas: Billings, Missoula, Great Falls, Butte, Helena, Kalispell, and Bozeman. The SWMP is the formal document that contains the strategies MDT is taking to reduce storm water runoff pollution into Montana’s waterbodies.

Public Review and Comment Request

MDT announces a 30-day public review and comment period for the Draft Revised Storm Water Management Program. The comment period will begin on Wednesday, June 8th 2022 beginning at 8:00 am, and closes on Monday, July 8th at 3:00 pm.

MDT has updated its Storm Water Management Program (SWMP) and is asking for public input to provide feedback on the draft, revised document and to help improve the implementation of the program to further protect water quality. MDT’s Draft Revised Storm Water Management Plan is available at the following link:

Draft Revised Stormwater Management Plan (SWMP)

If you have comments and/or suggestions to improve other areas of the program listed above, please complete the public comment form by selecting “MS4 SWMP Update” from the ”Commenting on a project or activity” dropdown list, or email comments to the following address: mdtms4datamanagerXYZmtABCgov. Alternatively, comments can be mailed to the following physical address:

Montana Department of Transportation
Environmental Services Bureau
Attention: Tom Gocksch, P.E., Environmental Engineering Section Supervisor
2701 Prospect
PO Box 201001
Helena, MT 59620-1001

If you have any questions, please feel free to contact Tom Gocksch at 406-444-9412.