Alderwood Water Wastewater District - WA
Trans Mains 1 & 2 Valve Replacement - Phase 4, Alderwood Water & Wastewater District, Everett, WA # **** - The work under this Contract is to replace existing isolation valves and install new tees for pipe access on the District s 30- inch and 36- inch ductile iron ( DI) and Concrete Cylinder Pipe ( CCP) potable water transmission mains at seven ( 7) separate site locations and includes: Installation of five ( 5) 30- inch District supplied butterfly valves and one ( 1) 36- inch District supplied butterfly
Valve replacement and pipe access installation on potable water transmission mains Installation of five 30- inch district supplied butterfly valves and one 36- inch district supplied butterfly valve; removal of one 12- inch ARV and replacement with a manual blowoff with vault structure; reconnection of three 3- 4- inch combination ARV assemblies; installation of various tees and concrete vaults; removal, haul, and disposal of existing piping and slabs; installation of 4- inch diameter DI water main and 12- inch diameter PVC storm drain with catch basins; roadway and property restoration.
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