Learn about practices that protect water bodies from pollution.


Many of our urban waters have been impacted by polluted runoff. However, there are many practices—from raingardens to shoreline stabilization—that can protect and improve the health of our lakes and creeks.

Stormwater ManagementThomas-Ave-Raingardens-in-Bloomington

As rainwater travels over hard surfaces, the water picks up pollutants. These pollutants can include materials such as oil, fertilizer, sediment, toxic metals, and garbage from streets, sidewalks, and parking lots. This results in pollution to local lakes, wetlands, and creeks. There are a number of stormwater management practices that reduce the impact from stormwater runoff.

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Restore Your Shore

Shoreline and streambank plantings create natural buffer areas between lakes and creeks and upland areas.

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Salt Reduction

Nine Mile Creek has too much chloride in it. The chloride comes from salt used in the winter on roads, parking lots, and sidewalks. Take steps to use less salt and protect the creek and local lakes.


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Why it matters

When stormwater travels over hard surfaces, like driveways and streets, it picks up pollution. This pollution includes things like grass clippings, leaves, pet waste, road salt, and fertilizer. The polluted runoff travels down stormdrains and directly into nearby waterbodies—untreated. Stormwater runoff is the number one source of pollution to waterbodies in urban areas. The choices we make impact how clean our lakes and creeks are.



L Palmstrom

Learn about the plants and animals that live in the Nine Mile Creek Watershed District.  Linnea Palmstrom created these incredible photo books of the Birds of Nine Mile Creek and the Flora of Nine Mile Creek for her Girl Scout Gold Award from 2012-2014.

Birds of Nine Mile Creek by L Palmstrom

Flora of Nine Mile Creek by L Palmstrom and R Hamilton