Washington Revised Code Title 80. Public Utilities § 80.28.110. Service to be furnished on reasonable notice

(1) Every gas company, electrical company, wastewater company, or water company, engaged in the sale and distribution of gas, electricity, or water, or the provision of wastewater company services, shall, upon reasonable notice, furnish to all persons and corporations who may apply therefor and be reasonably entitled thereto, suitable facilities for furnishing and furnish all available gas, electricity, wastewater company services, and water as demanded, except that: (a) A water company may not furnish water contrary to the provisions of water system plans approved under chapter 43.20 or 70A.100 RCW; (b) wastewater companies may not provide services contrary to the approved general sewer plan; and (c) exclusively upon petition of a gas company, and subject to the commission's approval, a gas company's obligation to serve gas to customers that have access to the gas company's thermal energy network may be met by providing thermal energy through a thermal energy network.

(2) Every gas company or large combination utility shall provide natural gas to all persons and corporations in their service area or territory that demand, apply for, and are reasonably entitled to receive, natural gas under this section, even if other energy services or energy sources may be available.