NOTICE TO CONTRACTORS (PUBLICATION) INVITING SEALED BIDS FOR CENTRAL CONTRA COSTA SANITARY DISTRICT (CENTRAL SAN), PROJECT NO. 100022 NOTICE IS HEREBY GIVEN THAT Central San invites and will receive bids for the construction of District Project 100022, Wet Weather Basin Improvements, Phase 1. The work generally consists of construction of an earthen berm and light poles in Basin A North. The estimated cost of construction is $450,000. A prebid meeting to discuss the Project will be held at 11 a.m. local time, August 21, 2025, in the District's Multi-Purpose Room, at 5019 Imhoff Place, Martinez, California. Central San will receive bids at its receptionist area until 2 p.m., local time per Time.gov, September 2, 2025, at 5019 Imhoff Place, Martinez, California, at which time and place, in the Board Room, accepted bids will be publicly opened and declared aloud by the Secretary of the District, and Central San representatives. NO LATE BIDS WILL BE ACCEPTED. Project Documents, bidding requirements, and addenda may be obtained through PlanetBids at http://www.planetbids.com/portal/portal.cfm?CompanyID=14663#, or by calling (925) 229-7349. /s/ Katie Young, CPMC, CMC Secretary of the District Central Contra Costa Sanitary District County of Contra Costa, State of California CCT/SRVT 6912955; Aug. 14, 19, 2025