25-REHABILITATION OF THE EAST ELEVATED STORAGE TANK

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holidays with a low voltage wet sponge detector in accordance with NACE SP0188. Holidays shall be marked and reworked until no further holidays appear. After all holiday checking is complete, the point of ground connection shall be carefully coated. Each coat shall be s ra ed on in accordance with the manufacturer's recommendations. Rolling interior paint is not permitted. The type of spray nozzle, the fluid pressure at the gun, the distance from the gun to the surface being painted and the speed of travel of the gun shall be as recommended by the manufacturer. Thinning shall be done as recommended. All paint in the fluid pot and lines shall be cleaned out with thinner before application of the paint is begun. The thinner may be used also for cleaning the painting equipment at the end of each day's operations. Each coat shall be dry to touch before the next coat is applied. Follow the manufacturer's directions explicitly. The Contractor is cautioned that small amounts of paint are intoxicating and large amounts tend to be toxic. The Contractor shall make provisions to keep the tank well ventilated during the spraying and drying operation to protect the personnel and to facilitate drying of the coating by solvent evaporation. During the actual spraying operations, all personnel within the tank shall be furnished with either an appropriate respirator or source of external air such as a compressed air line to a sandblasting head mask. At least two (2) men shall be in the tank during spraying operations. C. Exterior Area Surface Preparation & Coating: (1) The work covered by this part of the specifications includes painting the entire exterior surface area of the tank. It also includes painting any steel outside the tank such as vents, hatches, steel retaining rings, exposed yard piping and all other items outside the tank. Data Plates shall NOT be painted over. The Contractor shall furnish all materials required for the painting and shall install them in accordance with the manufacturer's written direction and these specifications. (2) The existing exterior coating system contains rg eater than 1% lead by weight. A laboratory analysis of the coatings is provided at the end of this document in the Appendix. Containment and lead abatement is required during the exterior abrasive blasting operations. See Technical Specification No. 35 - Lead Abatement (TS 35) in this document for containment and lead abatement requirements. Containment must be SW - 8 - 439