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As our magnificent region continues to grow, our job is to provide clean, safe and reliable drinking water

Cascade’s mission is to provide water supply to meet current and future needs of our members in a cost-effective and environmentally responsible manner through partnerships, conservation, acquiring, constructing and managing water supply infrastructure and fostering regional water planning.

Cascade’s Videos

 

Cascade has a YouTube Channel to access it’s videos, including how-to videos such as converting to drip irrigation, healthy lawns, and testing a toilet for leaks.

Click here for Cascade’s 20th Anniversary Legacy video.

Request for Qualifications

Cascade is soliciting a Request for Qualifications (RFQs) for providing dam engineering, hydrology, and geotechnical services for the White River Project. Please click below for more information. Rosters, RFQs &  >>

Lake Tapps Reservoir Drawdown Update

Cascade will begin the fall drawdown on November 1 and will bring the reservoir level down to approximately 539 feet for the fall and winter.  This drawdown is necessary for  >>

Lake Tapps Reservoir Levels Update

Due to no precipitation and low river flows, the reservoir level has dropped slightly to 542.3’ (as of 2:30 on 9/11/20). Cascade is doing everything it can to add water  >>

Reminder to License Before Modifying or Constructing a New Improvement at Lake Tapps Reservoir

All modified or new improvements on the Lake Tapps Reservoir require a License from Cascade. Cascade owns the reservoir lake bed and shoreline up to the 545’ elevation line (note  >>

Your drinking water remains safe from COVID-19

Read more about it from Seattle Public Utilities here.

March 13, 2020

Request for Qualifications

Cascade is soliciting a Request for Qualifications (RFQs) for providing dam engineering, hydrology, and geotechnical services for the White River Project. Please click below for more information. Rosters, RFQs &  >>

Lake Tapps Reservoir Drawdown Update

Cascade will begin the fall drawdown on November 1 and will bring the reservoir level down to approximately 539 feet for the fall and winter.  This drawdown is necessary for  >>

Lake Tapps Reservoir Levels Update

Due to no precipitation and low river flows, the reservoir level has dropped slightly to 542.3’ (as of 2:30 on 9/11/20). Cascade is doing everything it can to add water  >>