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Filing UW - 250739

Company: Washington Water Service Company
DBA:
Filing Type: Tariff Revision
Case Status: Formal
Dates (Opened & Effective): 09/25/2025 & 03/15/2026
Summary: General rate increase request that, as originally filed, would have generated approximately $4.0 million (36.7 percent) in the Company’s East Pierce service area and approximately $897,000 (6.6 percent) in the Company’s “Legacy” service area. An approximate combined $4.9 million (19.9 percent) additional annual revenue for water services. The Company provides regulated water service to approximately 37,600 customers in Clallam, Jefferson, King, Kitsap, Mason, Pierce, San Juan, and Thurston counties. The Company’s last general rate increase became effective on July 28, 2023.
Date File Link Document Type Description File Size
08/28/2026 UW-250739 - Order 04 Approving Settlement - Washington Water Service Company.pdf Order - Initial Order 04 Rejecting Tariff Sheets; Approving and Adopting Settlement Stipulation; Authorizing and Requiring Compliance Filing. 440,068 KB
08/28/2026 250739 - POS.pdf Order - Initial Order 04 Rejecting Tariff Sheets; Approving and Adopting Settlement Stipulation; Authorizing and Requiring Compliance Filing. 81,527 KB
03/11/2026 UW-250739 - Order 03 Prehearing Conference Order - Washington Water Service.pdf Order - Prehearing Conference Order 03 Prehearing Conference Order; Notice of Hearing (Virtual Evidentiary Hearing Set for July 15-16, 2026 at 9 a.m.) 260,144 KB
03/11/2026 UW-250739 POS.pdf Order - Prehearing Conference Order 03 Prehearing Conference Order; Notice of Hearing (Virtual Evidentiary Hearing Set for July 15-16, 2026 at 9 a.m.) 81,438 KB
01/29/2026 UW-250739_ Order 01.pdf Order - Open Meeting Final Order 1 Complaint and Order Suspending Tariff Revisions. 200,068 KB
01/29/2026 UW-250739 POS.pdf Order - Open Meeting Final Order 1 Complaint and Order Suspending Tariff Revisions. 81,374 KB
11/18/2025 250739 - POS.pdf Order - Protective Order 01 Protective Order. 81,312 KB
11/18/2025 UW-250739 - Order 01 Protective Order - Washington Water Service Company.pdf Order - Protective Order 01 Protective Order. 191,182 KB