Procedural History
Initial Filing by Washington Water Service Company Sept. 25, 2025: Washington Water Service Company filed with the Washington Utilities and Transportation Commission (commission) tariff revisions that would generate approximately $4.9 million (19.9 percent) additional annual revenue.
Order 01 Protective Order Nov. 18, 2025: The Commission issued Order 01, governing the disclosure of information designated as confidential in this docket.
Order 02 Complaint and Order Suspending Tariff Revisions Jan. 29, 2026: The commission issued Order 02, which among other things, set the matter for adjudication.
Order 03 Prehearing Conference Order and Notice of Hearing March 11, 2026: The Commission issued Order 03 Prehearing Conference Order establishing a procedural schedule and issuing Notice of a virtual evidentiary hearing to take place on July 15, 2026, at 9 a.m. and continuing July 16 as needed. To attend the hearing by telephone, please call (253) 215-8782 and enter the conference ID: 852 5164 1710# and Passcode: 543371#. To attend via Zoom, please use the following link: Click here to join the meeting.
Order 03 also established a time for a virtual public comment hearing, set for Thursday, July 9, 2026, at 6:30 p.m. Click here to join meeting, or call (253) 215-8782 and enter the Conference ID: 814 3640 6490# and use the Passcode: 718078#.
Notice of Technical Workshop March 17, 2026: The Commission issued a Notice of Virtual Technical Workshop setting a workshop for 10 a.m. to 12 p.m. on Monday, March 23, 2023. The technical workshop is intended to review the structure and functionality of the utility’s revenue requirement model and subsequently how that model interacts with the cost-of -service exhibit(s). All parties to the proceeding are welcome to attend but must have executed a Confidential Non-disclosure Agreement for their participants, as required by Order 01 Protective Order. To attend the workshop by telephone, please call (253) 215-8782 and enter the conference ID: 858 0463 6598# and Passcode: 137043#. To attend via Zoom, please use the following link: Click here to join the meeting.