Vallejo MIPS 3 W Effluent Bypass

August 9, 2023 This project is for Vallejo Flood and Wastewater District involves demolition and modifications to existing components in Chlorine Contact Tank C. Construction of new Pile Supported Flow Split Structure No. 6 onto Existing Chlorine Contact Tank C. Construction of a new pile supported Chlorine Contact Tank D and Mare Island Pump Station. Electrical modifications associated with the existing Mare Island Pump Station Control Building. Replacement of trickling filter media in one Biotower, replacement of existing two distributor arms and drive in Biotower, and installation of retractable stairs on one Biotower. Construction of a new valve vault on the Mare Island outfall pipe and construction of a new Ryder Street basin bypass pipe for the Mare Island outfall.