Bellevue's drinking water is acquired through the Cascade Water Alliance, an association of water districts and cities, including Bellevue, which serves as a regional water supply agency and wholesale water provider.
- Cascade purchases water from Seattle and provides it to Bellevue and other members in a cost-effective and environmentally sensitive way.
- The water comes from the protected watersheds of the Cedar and South Fork Tolt rivers in the Cascade Mountains, and meets or exceeds state and federal water quality requirements.
- Eight municipalities and water districts in King County are members of the Cascade Water Alliance.
Cascade is working to develop new sources of water for the area’s growing population and is looking at Lake Tapps to be a large component of its long-term water supply system. Details are available at Cascade Water Planning.
Connecting regional systems allows for more flexibility and is just one of the ways Cascade is making sure members will have enough water for the next 50 years. Cascade's long-term water supply plan includes a cost-effective conservation program that targets reduction in both annual and peak season use.
Cascade Service Area
Fire Hydrant Permits
Natural Lawn and Garden Care
Recycling Old Fixtures and Appliances
Water Conservation Programs and Services
Water Quality Report