Stage 4 Wastewater Treatment Plant

Dublin San Ramon Services District
Project Type: 
Designer: 
Brown & Caldwell
Contractor: 
C.Overaa
Construction Cost: 
$37.0 million

This project consisted of expanding the District’s treatment plant from 11.5 mgd of average dry weather flow to 17.0 mgd of dry weather treatment capacity. The following improvements were made: installation of a new bar screen building; modifications of existing headworks; new and modified grit and primary sedimentation tanks; new and modified aeration tanks; new aeration blowers and expanded blower building; new waste activated sludge pumping station; new and modified sedimentation tanks; modified dissolved air flotation thickener; new and modified digesters; new and modified foul air systems and odor treatment filters; new electrical substation; and modified piping, pumps, structures, electrical, instrumentation and all appurtenant facilities.