Lake Tapps 2016 Drawdown and 2017 Fill Schedule Announced
Cascade Water Alliance and the Lake Tapps Community Council today announced the drawdown schedule for the Lake Tapps Reservoir for this fall and the plan for fill in spring 2017.
Beginning today, no additional water will be added to the Lake Tapps Reservoir and it will be allowed to float down throughout the fall. It is anticipated that lake levels will drop by approximately one foot by Thanksgiving. Homeowners should watch lake levels to determine when to take their boats out of the lake.
Cascade is finalizing work on the energy dissipating valve at the powerhouse and anticipates completing that work in December. In January, when Cascade tests the new valve, it will draw down the reservoir approximately six to eight feet. This would be the time for residents to consider any improvements to their property or new projects. Residents must obtain all appropriate permits as well as a Cascade license prior to beginning any construction.
Active fill will begin about mid-February to early March with full recreational Lake Levels of elevation 541.5 to 542.5 feet being reached in early/mid-April. Cascade will bring the Lake Level up to elevation 543 feet, which is the maximum permissible level for Lake Tapps, for a short time during the spring.
For more information about Cascade and Lake Tapps visit www.cascadewater.org and for information regarding licenses for project work visit http://cascadewater.org/lake_tapps_licenses_and_permits.php
Algae Watch, Alerts and Information
Tacoma-Pierce County Health Department tracks Lake Tapps for possible toxic algae or bacterial contamination.
If you would like to learn more or get involved in Algae Watch, please email:
If you would like to receive alerts about environmental or human health concerns at area waterways, sign up at:
For more information about toxic algae, go to:
Lake Tapps Reservoir is a beautiful recreational area, but it is also part of Cascade Water Alliance’s water supply system, including the lake bed (up to elevation 545 feet), the dikes, and the entire White River system.
To keep a healthy, safe reservoir, the following regulations are in place for recreational and public access:
Dikes: Dikes are closed to the public, accessible only by homeowners whose property abuts the dikes or if one has a license issued by Cascade. All other presence on dikes is trespassing. Unlicensed structures on dikes will be removed at owner cost.
Lake Bed: To build or remodel bulkheads or docks, a Cascade license and all appropriate permits must be obtained before work can start. Unpermitted structures will be removed at owner cost.
Closed Areas: Trespassing on the dikes, within the White River Project, or on Cascade areas posted “no trespassing” will be referred to law enforcement agencies. This is for safety.
Cascade and its partners in law enforcement, fire and schools remind swimmers that the reservoir is glacier fed, and is therefore often very cold in some places. Recreation enthusiasts should call 911 if they spot trouble on the lake, trespassers, speeders, violators or people in damage.
To assist homeowners in planning ahead for project work, Cascade has issued the following lake level plans (subject to change due to unforeseen circumstances). The reservoir level in the summer is 542.5 feet, and most winters it is 539.5 feet. However, in winter 2018-19, it will be down to between 530 – 532 feet for project work.
For more information about Lake Tapps, visit http://cascadewater.org
To obtain a license for work on your property visit http://cascadewater.org/lake_tapps_licenses_and_permits.phpp
For who to call around the lake visit http://cascadewater.org/lake_tapps_who_to_call.phpp