Wastewater Pond Liners and Leak Detection Replacement

Energy Northwest, a joint operating agency and municipal corporation of the State of Washington, is requesting bids for wastewater pond liner and leak detection system replacement at the Columbia Generating Station in Richland, with bids due November 5, 2026, and a mandatory site examination on October 21, 2026, at 1:00 p.m. at the Chelan Building. All work is subject to Washington State prevailing wage requirements as of September 1, 2026, and the contractor must file intent and affidavit forms with the Department of Labor and Industries.

The scope includes removal and replacement of existing wastewater pond liners, installation of new leak detection systems, erosion control, grading, and hydroseeding at 76 North Power Plant Loop, Richland. Work is performed outside the Protected Area of Columbia. The contractor shall furnish all labor, supervision, tools, equipment, consumables, trash bins, and specified materials. Two optional bid items are included for a Dosing Pond construction phase and partial main power distribution installation, which may be evaluated separately or in combination with base work. Completion deadline is March 1, 2027.

The contractor must possess a valid Washington State contractor registration certificate, Unified Business Identifier number, industrial insurance coverage, employment security department registration, and state excise tax registration. A bid bond equal to 5 percent of the total bid price and a performance and payment bond equal to 100 percent of the contract price are required. Five percent retainage will be held from invoices until work completion and approval by the Department of Revenue, Employment Security Department, and Labor and Industries.

Evaluation criteria include price, bidder responsibility and qualifications, technical capability, project experience, safety performance, and key personnel. Written questions are due October 28, 2026, at 12:00 p.m. Contract award shall occur within 45 days of bid opening. Energy Northwest reserves the right to reject any or all bids. No minimum amount of work is guaranteed.