Removal, Disposal, And Installation Of Filter Media In Filters 1, 2, And 3 At Wtp No. 2

The Alameda County Water District is soliciting bids for the removal, disposal, and installation of filter media in Filters 1, 2, and 3 at Water Treatment Plant No. 2 in Fremont, California. The project requires the contractor to provide pre-washed anthracite and sand that meet AWWA Standard B100, ensuring a final media depth of 42 inches. The selected contractor must begin work within 10 calendar days of the Notice to Proceed and complete all activities within 170 calendar days. Key deliverables include a material disposal plan and documentation proving the media supplier has provided anthracite to at least five potable water treatment plants of at least 10 mgd within the last five years. Bidders must attend a mandatory pre-bid meeting on September 24, 2026, and submit sealed proposals by October 15, 2026. Requirements for submission include a noncollusion declaration, a bidder's statement of experience, a preliminary construction schedule, and proposal security of at least 10 percent of the total. Additionally, all contractors and subcontractors must be registered with the Department of Industrial Relations per Labor Code section 1725.5. Due to the security-sensitive nature of the project, bidders must execute a Non-Disclosure Agreement and provide a refundable deposit to obtain contract documents. Payment will be issued via monthly progress payments.