Help Keep Stormwater Clean

We all need to do our part to protect and improve the quality of water in our local creeks, rivers, lake and wetlands. Where adequate stormwater infrastructure does not exist, rainwater that runs off of our yards and streets flows into storm drains or ditches and directly into the nearest body of water without treatment.

Through simple actions in our daily lives, we can help keep pollutants out of stormwater and keep our local waterways, such as Beaver Lake, Ebright Creek and Lake Sammamish, clean and healthy. Here are some things you can do at home to reduce stormwater pollution:

Waste Disposal and Spills - Dispose of waste property and report any spills.

Drainage - Consider replacing impervious surfaces like sidewalks, decks and driveways around your home with pervious materials or directing stormwater to low impact development best management practices. Examples of low impact development include installation of rain gardens or dispersion trenches to reduce directed surface water discharges.

Car Care - Use a commercial car washing facility and make sure your automobile isn’t leaking fluids. Hold an eco-car wash.

Yard and Garden Care - Practice natural yard care to reduce the use of hazardous products while saving time, water, money, and helping to preserve the environment.

Pet Waste - Practice proper waste disposal.

Pool and Spa Care - Pool and spas contain chemicals that can damage the aquatic life in our lakes, rivers, creeks and wetlands.


The City of Sammamish appreciates all the dedicated volunteers who take time out of their busy lives to give back to their community and enhance their natural resources. Below are ways you can make a difference:

Storm Drain Marking Program

Storm Drain Marking is a way to inform citizens of the connection between stormwater runoff and their yards, roads and nearby waterways.  Citizens are cautioned not to dispose of things like gardening chemicals, grease, soap, oils, etc. into the storm drains by the following message “Only Rain Down the Drain”, which is displayed next to storm drains.  

This is a great activity for any volunteer organization, including: schools, scouts, churches, block clubs, and service organizations (e.g. Boy Scouts).

The City of Sammamish is promoting the storm drain marking program throughout the city. For more information about the program, email Lisa Werre at or contact her at (425) 295-0573.


Kokanee Work Group

Sammamish Stormwater Stewards

Sammamish Outreach Advisory Committee

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Captain Coho & the Salmonmobile: A Puget Sound Journey – Newspaper in Education Flipbook

Polluted Puddles: Arlo’s Quest to Clean Up our Mess - Video

Salmon, Stormwater and You – Newspaper in Education

Stormwater: What You Otter Know – Newspaper in Education

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