| 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. |