NEW BILLING PORTAL! Cascadia recently migrated to an entirely new billing portal. This will require all customers previously registered for an online account to re-register on the new system. (One-time payments, as before, do not require registration.) If you have any questions, please call the office at 1-888-235-0510 or email us at

COVID-19 Assistance

we are here to help.

During this challenging time, we are here to help. Please contact us if you need temporary payment arrangements. Contact our office at 1-888-235-0510, Monday through Friday 8am to 4pm or email us anytime at

About the company

Cascadia Water was formed on November 2, 2018 through the acquisition and combination of Lehman Enterprises, Inc. and Sea View Water, LLC on Whidbey Island, and is a wholly-owned subsidiary of NW Natural Water Company, LLC.  Since then, Cascadia has closed on the acquisitions of Estates & Monterra Inc (Olympic Peninsula, April 2019), Del Bay HOA (Whidbey Island, November 2020), Discovery Bay Village (Olympic Peninsula, September 2021), Pelican Point (Moses Lake, October 2021), Northwest Water Services (Skagit, Snohomish & Island Counties, August 2022) and Aquarius Utilities (Kitsap & Olympic Peninsula, August 2022). Cascadia Water operates primarily out of Whidbey Island with a new secondary office in Poulsbo, and now serves more than 8,000 people through 3,200 connections.

Notice of Cascadia Water's UTC approved new rates

On June 28, 2021, the Washington Utilities & Transportation Commission (WUTC) issued Order No. 01 of Docket UW-200979 addressing the rate case filed by Cascadia Water on December 8, 2020. The first phase of new rates took effect July 1, 2021. The second phase of rates took effect December 1, 2021. The third phase of rates took effect June 1, 2022.

The fourth phase of rates took effect December 1, 2022 , and will be reflected on the January 2023 billing for Whidbey Island customers (November [old rate]/December [new rate]) and will be on the February 2023 billing for Olympic Peninsula customers (for December/January usage).


Pedersen system acquisition, Docket UW-220900

Cascadia Water filed an application with the Washington Utilities & Transportation Commisssion for the sale and transfer of the water system assets and operations of Pedersen Family, LLC. Cascadia will maintain rates and charges of Pedersen. Pedersen serves approximately 230 customers in Clallam County. 

Information on this filing for docket UW-220900 can be found here: UTC Case Docket Detail Page | UTC (

Routine System Flush

Thursday, 1/19/2023 – Seaview Water (Fort Nugent / West Beach area in Oak Harbor)

Tuesday, 1/17/2023 – Del Bay (Mutiny Sands Rd / Timber Ln) beginning at 9:30am


We're here to help!

Our office is currently closed to ensure the safety of our staff and customers. 

Contact our office at 1-888-235-0510, Monday through Friday 8am to 4pm or email us anytime at