NOTICE TO BIDDERS Energy Northwest, a joint operating agency and municipal corporation in the State of Washington, is soliciting competitive proposals from qualified Bidders for the Heat Exchanger Level Control Valve Replacement at Columbia Generating Station as more fully described in the Request for Proposal No. 715909 documents. Copies of the documents can be requested from Marcie Roberts at mlroberts@energy-northwest.com. IPL0323951 Mar 20 2026