UTC Case Docket Details

Docket Number 260345

Case Docket Details Table
Docket Number UW-260345
Advice
Company Washington Water Service Company
DBA
Filing Type Petition
Industry (Code) Water (160)
Status Formal
Lead Staff Sharbono, Benjamin (UTC)
Filed Date 04/29/2026
Effective Date N/A
Summary Petition for accounting deferral of costs associated with developing a comprehensive service line inventory required by 40 C.F.R. Parts 141 and 142. Under WAC 480-07-370(3)(b), Washington Water Service Company is requesting accounting deferral of all costs related to completing the service line inventory, including expense, capital, and carrying costs. The Company seeks to defer costs from October 1, 2025, through December 1, 2027, to track and preserve costs for separate ratemaking treatment.

Event History

  • 08/21/2026 -- Formal
  • 06/30/2026 -- Approved (Commissioner Rendahl moved that the commission enter an order in UW-260345, a petition for accounting deferral of costs filed by Washington Water Services Company on April 29, 2026, setting the matter for adjudication to resolve legal disputes related to the effective date of the petition.)
  • 07/02/2026 -- Closed
  • 06/25/2026 -- Open Meeting
  • 05/04/2026 -- Formal
  • 05/04/2026 -- Open