BICAST

plastic and/or metal lined concrete secondary containment structures consisting of sumps, tanks, reinforcing steel re-bars, pipe supports and hangers, leak detection apparatus, corrosion-resistant and leak-preventive plastic sheet lining or coating, manholes, chambers, tank vaults, liquid-tight underground trenches allowing access for maintenance, inspection and repair and housing multiple pipes running along the same route, hole penetration sealers, I-beams, and large diameter flanges for trench access