Welcome to the Cascade member resource page. This site is to aid members in doing their job more effectively by placing relevant Cascade information in one place.
General Cascade Materials
Future of Cascade and Lake Tapps Reservoir
On June 30, 2021, the Board of Directors held a workshop on the Future of Cascade and Lake Tapps Reservoir. The workshop evaluated alternative scenarios for Cascade’s long-term water supply and development of the Lake Tapps Reservoir. It also focused on the implementation of a Water Supply Development Fund (WSDF) to provide a financial structure to accumulate cash for a future major water supply project and reduce and smooth out rate impacts.
- June 30, 2021 Board Workshop presentation on the Future of Cascade and Lake Tapps Reservoir
- June 23, 2021 Board Meeting presentation on Cascade’s Past and Present
- Cascade’s Base Scenario – Demand and Supply Projections
- Puget Sound Region – Supply and Demand Projections
- Supply Options and Estimated Costs
- Water Supply Development Fund FAQs
- Summary of Cascade’s Past and Present Water Supply Management
- Key Historic Agreements
- Joint Municipal Utilities Service Agreement (JMUSA)
- Water Right Permits
- White River Management Agreement with Puyallup and Muckleshoot Tribes
- Puyallup Tribe Settlement Agreement
- Muckleshoot Tribe Settlement Agreement
- Four Cities Agreement
- Lake Tapps Community Agreement
- Pierce County Water Supply and Recreation MOU
- Seattle Water Sale Agreement
- Tacoma Water Sale Agreement
- Membership Audit Acceptance Agreements
- Lake Tapps Reservoir Purchase Agreement
Finance & Rates
Communications, Legislation & Outreach
Board Meeting Materials
Water Supply
Water Efficiency
- 2021 Water Efficiency Annual Report
- 2020 Water Efficiency Annual Report
- 2019 Water Efficiency Annual Report
- 2018 Water Efficiency Annual Report
- 2017 Water Efficiency Annual Report
- 2016 Water Efficiency Annual Report
- 2015 Water Efficiency Annual Report
- Conservation Potential Assessment 2005
- Conservation Analysis 2011
Emergency Contact Lists
Cascade Resiliency Workshop (June 2017)
Cascade's 20th Anniversary (March 2019)
Lake Tapps Reservoir
For Lake Tapps agreements, water rights, and other information, click here.
Emergency Fact Sheets and Materials
- Emergency Disinfection of Water Systems
- Coliform Public Health Advisory Packet
- DOH Authority Over Drinking Water Systems and Operators
- Boil Water Door Hanger
- DOH After Hours Emergency Hotline Flyer
- Public Health Advisory for E. coli
- Troubleshooting Checklist for Coliform Contamination
- Coliform Bacteria and Drinking Water Fact Sheet
- Emergency Water Supply Guidelines for Food Service