Keep it clean from drain to stream!
Stormwater runoff is generated when water from rain and snowmelt flows over land or impervious surfaces (like paved streets, parking lots, and building rooftops) and is not absorbed into the ground. As the runoff flows over the land or impervious surfaces, it accumulates debris, chemicals, sediment or other pollutants. If those pollutants get into our waterways, they can cause problems for wildlife, algae blooms and flooding during storms.
Stormwater isn't run through a treatment facility like sewage is, so it's harder to keep the pollutants from getting into our waterways once they're in the stormwater. If we all do a few little things, Denver residents can make a big difference together.