Stormwater Systems & Environmental Affairs
Overview
Learn about our Education & Outreach efforts in the community and in classrooms.
Yellowstone River Intakes and Outfalls Map | Stormwater System MapAccording to the 1996 National Water Quality Inventory, stormwater runoff is a leading source of water pollution. Stormwater runoff can harm surface waters such as rivers, lakes, and streams which in turn cause or contribute to water quality standards being exceeded. Stormwater runoff can change natural hydrologic patterns, accelerate stream flows, destroy aquatic habitats, and elevate pollutant concentrations and loadings. Development substantially increases impervious surfaces thereby increasing runoff from city streets, driveways, parking lots, and sidewalks, on which pollutants from human activities settle.
Common pollutants in runoff include pesticides, fertilizers, oils, metals, pathogens, salt, sediment, litter and other debris are transported via stormwater and discharged - untreated - to water resources through storm sewer systems.
Resolution 20-10888 FY 2021 Storm Sewer Fees
Have a concern or a question? Let us know with convenient online reporting & request forms:
Contact Us | Storm Sewer Reporting | Stormwater Construction Site Complaint Reporting