Blastco Inc., of Gardena, CA, has been awarded a $3.88 million contract to rehabilitate a 14 million-gallon water storage tank at the Alamo Reservoir in Alamo, CA.
Blastco was the lowest of five bidders for the work; the top bid was $4.95 million.
Scope of Work
The project involves rehabilitating a 14 million gallon (MG) welded-steel water storage tank, 225 feet in diameter and 50 feet high. SSPC-QP 1 and QP 2 certifications are required, as is containment; the current coatings contain lead.
Photos: East Bay Municipal Utility District
|A 2008 study of the reservoir tank documented extensive coating failure.|
The interior will be abrasive blast-cleaned to SSPC-SP 5 (white metal) and lined with a 100% solids epoxy system. Solid desiccant dehumidification and ventilation will be required.
The exterior will be power-washed, spot power-tool-cleaned to SSPC-SP 11 (bare metal), and coated with an epoxy-polyurethane system.
|Dive teams recovered three 55-gallon drums full of paint chips, corroded clamps and other debris from the 39,702-square-foot tank floor.|
The work also includes removing and replacing the roof access system, the corrosion control system, and the water quality sampling system; sampling, removing, and disposing water and sediment remaining within the reservoir; furnishing and installing reservoir appurtenances, electrical improvements, and security improvements; and related tasks at the reservoir, operated by the East Bay Municipal Utility District.
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