12499-015.1 RE-BID Lower Meramec WWTF Corrosion and Humidity Control Improvements

Status

Accepting Bids

Bid Date7/9/19 2:00 pm

Company & Contacts

Metropolitan St Louis Sewer District

Lisa Treat, ltreat@stlmsd.com  

Removal of existing 10”-18” insulated, and 36” and 54” non-insulated galvanized metal air duct and replacing it with 10”-18” insulated, and 36” and 54” non-insulated fiberglass air duct including all required air diffusers, dampers and duct supports; removal and replacement of air plenum metal closure plates with fiberglass closure plates; removal of existing ductile iron pipe, fittings, valves, and supports and replacing them with stainless steel pipe, fittings, valves and supports; removal of existing coatings and rust from various existing pipe supports and refinishing them; repair of several pipe supports; repair and sealing of cracks in existing pump station concrete walls; applying crystalline coating on interior surface of exterior wall of existing pump station walls and lower level floor; furnishing and installation of dehumidifiers, monitoring instruments, and SCADA and PLC equipment; and protection of existing pump station equipment during construction.