Small Water System Management Program 

This plan supplants the previous Westside Water Comprehensive Plan of 1996.  This plan should be considered a snapshot of Westside Water that reflects the capacity of the system as viewed against the primary considerations of Managerial, Technical and Financial aspects of the system.

Small Water System Management Program (WSP), October 2020 (revised April 2021) [PE stamped & signed copy]

Addendum #1 King County UTRC – DOH signed (August 25, 2021)

Water Quality

Westside Water is required to comply with drinking water regulations specified by the state Department of Health. As with all water utilities, our information is in the public record.

For a complete record of required testing results, please visit the following website:
Our system ID number is 94950.

Because of ongoing issues with arsenic concentrations in the summer months, we continue to pursue new sources.

Sanitary Survey

The Washington State Department of Health performs a detailed inspection of our system every 5 years. The survey includes a system status report and recommendations for system improvements. The next one will take place in 2018.

     2013 Westside Water Survey

     2018 Westside Water Survey

Water Use Efficiency (WUE)

The State of Washington recently established the Municipal Water Law, part of which mandates a water use efficiency plan. Part of the plan requirement involves setting goals and monitoring the results. In 2012, the Westside Water Board set and met the goal of asking all shareholders to reduce their water consumption by ½ of 1%. On average, this amounts to a little less than one gallon per household per day. This reduction is easily accomplished by simple acts like shutting off the water tap while brushing teeth or turning off the shower briefly while you lather up with shampoo. Of course if you are planning to replace your toilet, please consider selecting a low water use one. Installing a low flow shower head is easy too and more than meets this goal. To continue to benefit, all shareholders are asked to use water efficiently and, especially, to check for and promptly respond to leaks.  More information about the Water Use Efficiency Rule can be found here.

Westside Water has prepared some Water Conservation tips for members.

Thanks for helping out!