East of Hills Facilities Demolitions and Improvements, Contra Costa County, CA

Work includes: At Grizzly Reservoir in Lafayette: demolition and removal of the existing 5.0-million-gallon steel tank, valve pit, piping, electrical, and associated scope; construction of two new 1.3-million-gallon steel tank reservoirs, Grizzly Reservoirs No. 1 and No. 2 including reinforced concrete foundations, tank shells, aluminum dome roofs, new PG&E service, electrical power improvements and piping. At Castle Hill Reservoir in Walnut Creek: demolition of the existing 3.0-million-gallon steel tank, valve pit, piping, electrical, and associated scope, and construction of the Castle Hill Regulator including reinforced concrete foundation, housing structure, piping, and electrical. At Knife No. 1 and Wiedemann No. 1 reservoirs in San Ramon: blast and recoat the interior of the existing 0.2 and 0.3-million- gallon steel tanks, and replacement of cathodic protection systems. At Crest Radio Site, Crest Pumping Plant, and Castle Crest Road & Sydney Drive in Alamo and Walnut Creek: demolition of the facilities including 0.1-million-gallon redwood tank, 0.1 and 0.4-million-gallon-per-day pumping plants, and a 3,000-gallon pressure vessel; salvaging redwood boards and equipment; construction of site improvements and roadway restoration. At Danville Reservoir in Danville: installation of carbon adsorption units and ventilation system improvements at the 12.2-million-gallon open-cut reservoir; installation of covers to close up wall and roof vents without leaving debris in the reservoir or entering the reservoir; and associated work.