Oswego Lake Watershed Council

The Oswego Lake Watershed Council (OLWC) is a locally organized, non-profit, non-regulatory watershed stewardship organization established to improve the condition and health of the Oswego Lake watershed and its stream network.

OLWC AND COVID-19

Oswego Lake Watershed Council’s number one priority is the health of our community and volunteers. We appreciate all of you and want you to know that our staff is closely monitoring the spread of COVID-19 and taking appropriate measures to ensure that we are doing our part to promote wellness in the community. Until further notice, all public events, including volunteer events, have been canceled or postponed.

We are continuing to engage with the OLWC community online by using email and our social media platforms. As always, if you have any questions or concerns, please do not hesitate to reach out to us. We appreciate your patience and hope that all of you continue to stay healthy during this challenging time.

Take care,
OLWC Staff and Board

Black Lives Matter

Black Lives Matter

The murders of George Floyd and Breonna Taylor at the hands of the police have reinvigorated national conversations around racial justice, and police violence against Black people. We condemn this racial violence. 

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Soil Your Undies!

Have you ever had the urge to bury a brand-new pair of 100% cotton underwear under (at least) 6 inches of soil, wait 60 days, and then dig them back up to see what happened? Now may be your chance! Oswego Lake Watershed Council (OLWC) is encouraging our community to get dirty and participate in the nationwide Soil Your Undies challenge!

Oswego Lake Tree Summit

Let’s Branch Out and
Talk Trees Together!

The Tree Summit is in partnership with the Oswego Lake Watershed Council, the Lake Oswego Sustainability Network, the Mountain Park Homeowners’ Association, and 14 neighborhood associations.

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Japanese Knotweed

Weed of the Month: Knotweed

Japanese knotweed (Fallopia japonica) has been called a “nightmare” and a “botanical bully,” and is one of the 100 worst global invaders. This gives you a pretty good idea of just how unwelcome this invasive weed is in our community.

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2020 Local Native Plant Sales

Find local sources of native plants, including local plant sales, as well as retail, wholesale and native plant seed suppliers. 

Summer is NOT the time to plant, of course, but this can help you plan for Fall.

For more resources including what plants to use for different conditions (sunny & dry, shady & wet, etc.), click here.

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Resources for Residents

Be a part of the solution. There are many ways to help protect watershed health at home.

The links on this page provide useful information to help you improve water quality and wildlife habitat in your yard and your community.

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