MWWTP Secondary Reactors Rehabilitation, Phase 2

Monterey Peninsula Water Management District (MPWMD) is requesting bids for Phase 2 secondary reactors rehabilitation at its wastewater treatment plant, with proposals due November 18, 2026.

The scope encompasses concrete structure rehabilitation on covered and open reactors; relining, modification, or replacement of small and large diameter steel and ductile iron pipes with associated supports; replacement or installation of valves, piping appurtenances, electrical and instrumentation components; installation and operation of an 11 MGD temporary pumped bypass; reactor mixer and aerator rehabilitation; instrumentation upgrades with associated electrical work; motor control center component rehabilitation and replacement; modification of existing sluice gates and installation of new slide gates; platform and access improvements; sump pump discharge rerouting; excavation and trench work; and surveying of key points around the reactors. Bidders must demonstrate relevant experience in wastewater treatment plant rehabilitation, large-scale piping systems, and coordination of complex construction within an operating treatment facility.

The bid notice specifies mandatory pre-bid meetings and site visit requirements; the source does not detail dates, locations, or specific attendance rules. Prospective bidders must obtain bid documents and follow all submission procedures and evaluation criteria outlined in the notice. The project represents significant infrastructure investment in both structural and mechanical/electrical systems at the secondary reactor facilities. Questions due and anticipated award date are not specified in the available source material.