• Working Together as a Region to Plan for Tomorrow
    Working together
    as a region to plan
    for tomorrow
  • Water for Today and Tomorrow

    Cascade Water Alliance
    Water for today...and tomorrow

  • Planning Today for Tomorrow
    Planning today
    ... 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

Caution Advisory Remains in Effect at Lake Tapps

August 26, 2016

As part of their ongoing surface water monitoring efforts, Tacoma-Pierce County Health Department staff checked seven locations around Lake Tapps on Thursday, Aug. 25, and found a small area of algae located adjacent to the Inlet Island bridge roadway. The Health Department collected an algae sample for further laboratory analysis of possible toxins and expects to get the results by Friday, Sept. 2.  If you see algae avoid the area. For more information click here:  http://bit.ly/2bmKeMv Share this: Read More

Lake Tapps Algae Update

August 23, 2016

Following concerns regarding algae blooms in Lake Tapps last week – which when tested for toxins, were negative — the Tacoma-Pierce County Health Department just informed Cascade that it inspected Lake Tapps yesterday and found no evidence of anything of concern in the water.  The reservoir will be checked again next week. Enjoy this summer weather!   Share this:

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Tacoma-Pierce County Health Department Update on Algae in Lake Tapps

August 19, 2016

The Tacoma-Pierce County Health Department has lowered the Lake Tapps toxic algae advisory from a warning advisory to a caution advisory. People should avoid areas where visible algae may be present. The following statement was sent to Cascade by the Tacoma-Pierce County Health Department:  “We would like to update you on the toxic algae situation at Lake Tapps. Tacoma-Pierce County Health Department received laboratory results from a Lake Tapps toxic algae sample earlier today, and no detectable concentrations of toxin were reported.

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Lakefront Property Owners Can Help Control Aquatic Weeds

August 02, 2016

Cascade continues to control and prevent the spread of Eurasian watermilfoil in Lake Tapps as is required by law. However, treatment of native, aquatic plants is the responsibility of homeowners. For aquatic plant management options to control nuisance aquatic weeds, property owners must follow rules outlined by Washington State Fish and Wildlife. See attached document for more information. Here’s a link to the aquatic plant control pamphlet:  Aquatic Plants and Fish: Rules for Aquatic Plant Removal and Control .  For more info:  Options for Lakefront Property Owners to Control Aquatic Weeds Summer 16 Share this: Read More

Swimsafe on Lake Tapps

May 23, 2016

Everyone agrees Swimsafe programs are working. Last year, the community celebrated three years with no deaths reported on Lake Tapps during the busy summer seasons of 2013, 2014 and 2015. Following a 2012 summer that saw three deaths in Lake Tapps, the surrounding cities, first responders, school districts  and Cascade Water Alliance, owner of the reservoir, came together to take steps to help swimmers and boaters who enjoy recreation on Lake Tapps and other area waterways stay safe in a campaign called

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Lake Tapps Reservoir Levels Update

May 16, 2016

Cascade filled the Lake Tapps Reservoir to approximately 543.0′ (maximum full pool) today. This level will be maintained for about 24 hours, after which the level will be lowered (over the course of a few days) to elevation 542.5 – 542.75′, which is the level planned for the remainder of the recreational season (through at least Sept. 30). Cascade has raised the reservoir levels to approximately elevation 543′ each year since 2010. The reservoir level has reached approximately elevation 543′ in 12

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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