ECOSS educates and empowers businesses and diverse communities to implement environmentally sustainable practices.

Everyone can make a difference –ECOSS leads industry, small businesses, communities and government to practical and sustainable environmental solutions.

We deliver strategies and results in stormwater compliance, pollution prevention, energy efficiency and recycling.

Our international staff speak more than a dozen languages and work with Asian, Southeast Asian, Pacific Islander, African and Latino communities. More than two decades of experience and cultural depth make ECOSS a leader in multicultural environmental outreach and engagement.





  • Environmental Equity
  • Resource Conservation
  • Stormwater Solutions


Learn more about our work

RainWise achieves a major milestone!

June 21, 2018

Congratulations to the RainWise program for hitting the major milestone of capturing rainwater from two million square feet of rooftops via rain gardens and cisterns! That’s roughly equal to the area of Volunteer Park! See if your home qualifies for a RainWise rain garden or cistern! Stormwater is the largest source of pollution in Seattle. […]

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Join us at the 2018 Water Festival!

June 7, 2018

  The Water Festival is coming to Duwamish Water Park on July 28! Join us in celebrating how water shapes our culture. Watch luchadores duke it out in the ring! Learn new recipes for healthy seafood! Watch multiple cultural performances! Craft lanterns to launch into the Duwamish River! Get more details on this free-to-attend event […]

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