Bid Summaries, Subcontractor Lists and Schedules Post November 22, 2017 Aeration Basins Diffuser Replacement, Phase 1, District Project 100019 Aeration Unit 1 Steam Turbine Overhaul, District Project 100054 Downtown Walnut Creek Sewer Renovations - Locust, District Project 100049 Martinez Urgent Force Main Replacement, District Project 100066