Summary
Tank information: the structure is a 1,000,000 gal. Radial arm elevated water storage tank with an estimated height to high-water level of 175'. The work includes: exterior: high-pressure water clean (5,000 to 10,000 PSI) and spot power tool clean to an SSPC-SP11 standard. Apply a 3 coat epoxy urethane system. The work is to be performed within containment. Wet interior: abrasive blast clean to an SSPC-SP10 near-white metal standard. Apply a 3 coat Zinc epoxy system. Apply a polyurethane caulk to the roof lap seams. Cathodic protection- alternate: install an impressed current cathodic protection system. Foundation: water clean and apply a 2 coat epoxy system. Splash pad: install a concrete splash pad at the overflow discharge. Repairs: replace the sidewall and riser manway gaskets; install a gasket on the wet interior roof hatch; install deflector bars on the fill/draw pipe; overflow discharge modification; install a screen on the roof vent; install bowl rigging couplings; remove the wet interior platform; remove the chains from the roof handrail. Repairs - alternate: replace the pit vault hatch; replace the rail-type fall prevention device on the leg ladder; replace the fall prevention devices with cable-type devices on the exterior ladders; install a vandal guard; install a swing gate at the roof platform opening; install a wet interior ladder from the roof to the bowl; install grounding rods for the structure.