• Water for Today and Tomorrow

    Cascade Water Alliance
    Water for today...and tomorrow

  • Planning Today for Tomorrow
    Planning today
    ... for tomorrow
  • Working Together as a Region to Plan for Tomorrow
    Working together
    as a region to plan
    for tomorrow
  • Using Water Wisely Saves Water and Money
    water wisely
    saves water
    and money
  • Lake Tapps Our Future Water Supply
    Lake Tapps
    ... our future
    water supply

In The News

Lake Tapps Reservoir Update

September 22, 2015

The Lake Tapps Reservoir remains full, and Cascade is allowing the current fall weather to slowly bring the level to the minimum recreation levels (election 541.5 feet) well into October. On or after the end of October, Cascade will announce that it will drop the level of the reservoir only a couple of feet in November to prevent risk to the safety of the dikes from winter storms, rains and wave action. It will remain at that level for the remainder of

The Lake Tapps Reservoir remains full, and Cascade is allowing the current fall weather to slowly bring the level to the minimum recreation levels (election 541.5 feet) well into October.

Residences and businesses have cut back water use by 14% over the last four weeks.

September 09, 2015

BELLEVUE, WA –   Residents and businesses in the region have exceeded requests by water providers like Cascade Water Alliance to reduce water use 10 percent over the last four weeks by collectively cutting back use by 14 percent.  Yet while the recent rains have helped, it has not been enough to return water supplies to normal levels. Cascade and its members remind residents and businesses that more rain and continued water reductions are still needed to replenish regional water supplies for people

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Voluntary Curtailment Reduced Water Use by 10% – Continued Curtailment of Water Urged

August 26, 2015

Bellevue, WA, August 26, 2015 – Cascade Water Alliance commended its members and residents for contributing to the region’s collective reduction of its water use by 10 percent over the last two weeks, hitting the goal set by Everett, Seattle and Tacoma. The regional water suppliers ask customers to continue their efforts to reduce water use to stretch water supplies until the rainy season. Updates on use will be issued every other week. Cascade and its members, Bellevue, Kirkland, Issaquah, Redmond, Tukwila

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Lake Tapps Reservoir Update

August 14, 2015

Yesterday Cascade took the last of the water stored behind Mud Mountain Dam from Phase 3 of the Barrier Structure Repair Project. That project is now complete. The agreed-upon recreational level for Lake Tapps Reservoir is 541.5 to 543 feet. Reservoir level reached 541.5 feet on Saturday, August 8, at about 8:00 p.m. Today we are at 542.84 feet. For the remainder of the summer, any water to maintain Reservoir levels will have to come from natural flow in the White River.

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Voluntary Curtailment of Water Announced

August 11, 2015

Cascade Water Alliance announced today that it is joining Seattle Public Utilities, Tacoma Water and the City of Everett in asking residents and businesses for voluntary curtailment of their use of water by 10 percent of projected current use due to continuing drought conditions.

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Reservoir Fill Update

August 06, 2015

This morning Cascade started diverting water from the White River into the flume. A significant portion of this water is from the Mud Mountain Dam storage held during this third and final phase of the Barrier Structure project.

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Lake Tapps Reservoir Update

August 04, 2015

The Lake Tapps Reservoir is at elevation 541’ (540.98’). As you may have noticed, we added about four inches of water to the Reservoir over the weekend. The Corp began storing water for Phase 3 of the Barrier Structure Project late last week. Maintenance work at Mud Mountain Dam resulted in the release of some stored water (the four inches that were added to the Reservoir). The Corps started storing water again late Sunday and currently has approximately 3,200 acre feet of

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Our Mission

As our magnificent region continues to grow, so do the demands for clean, safe reliable drinking water.

"At Cascade, we plan for water out 25 to 50 years to ensure the viability of our communities."
- John Marchione, board chair

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.

Members are Our Source of Quality

Our local member cities and utilities are the source of water quality, making sure our 350,000 residents and 20,000 businesses receive great tasting high quality water today... and tomorrow.

Cascade's Vision for Today...and Tomorrow