Water System Plan

A Water System Plan (WSP) is an important document we produce every 10 years that describes how Tacoma Water will continue to provide clean, reliable drinking water to our community. By making the WSP publicly available, we’re showing transparency about how we make decisions and prioritize investments.  

The plan gives detailed technical information on how the water system works and our plans for the system. Customers can learn how the utility prepares for growth, meets regulatory requirements, and uses resources responsibly to protect public health.  

The plan touches every major part of the utility from operations and infrastructure to finances and water conservation. The 2018 WSP took three years to complete with input from customers, the Public Utility Board, adjacent water agencies, and jurisdictions we serve. State law requires water utilities to update these plans regularly and our update will happen in 2030.  

We presented the current plan at the Public Utility Board Meeting May 28, 2025. You can watch the recording online here.  

Plan includes recent budget updates

Tacoma Water will amend its current 2018 Water System Plan to incorporate the Tacoma Water’s 2025–2026 budget.

The current updates reflect our proposed work in the coming decade. This helps us stay competitive when we apply for grants and low–interest loans that could reduce our customer’s costs.  

This amendment stays valid until Jan. 6, 2030. 

Questions? 

To receive a copy of the 2018 WSP, please contact Dan Reisinger at dreisinger@tacoma.gov or by mail at the following address: 

Dan Reisinger
Tacoma Water
3628 S 35th St
Tacoma, WA 98409