COMPLIANCE INFO_1998 REMOVAL AND INSTALL

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These instructions only anply to steel underground - The COAWctor is also responsible for providing a storage tanks. back-hdWd operator for a period of time to assist with PRE-INSTALLATION: the insertion of ReTank parts. The ReTank candidate tank is inspected subject to the (Note:The period of time for heavy equipment assistance following criteria: is typically no more than 2 days after FCI approves the interior condition of the steel tank.) - The water table must be maintained at or below the _ The Contractor is responsible for maintaining security bottom of the tank p 9 barriers around the job site. Deflection of the existing tank does not exceed 3% of the original diameter as determined by measuring the vertical diameter of the tank through a fitting. FCI INSPECTION: - The minimum vertical tank diameter is 91" for a 96" - The tank is tested for benzene and explosive vapor levels diameter steel tank prior to FCI personnel entry. CONTRACTOR PREPARATORY WORK: - The tank is then continuously vented and monitored for oxygen and flammable vapor levels. The tank may be - The Contractor removes backfill, piping, and electrical entered when the oxygen level is greater than 19.5%and connections from the top of the tank. the flammable vapor level is less than 10%of the Lower - The Contractor arranges for / provides equipment Explosive Limit. necessary to unload ReTank equipment and supplies. - The ReTank candidate tank is inspected internally subject Note:This includes pallets and/or 55 gallon drums. It to the following guidelines: may also include a large sealed container(8 ft x 8 ft x - Indention's or other surface discontinuities are less than 20 ft Sea-Train) 1/2"high. - The tank is then triple-washed,cleaned and defumed, Note:Surface irregularities outside of these guidelines will under the direction of a local contractor(designated as require review by FCI personnel and may require special The Contractor)and in accordance with API Standards, repair procedures before the ReTank process can be 2015 Safe Entry And Cleaning Of Petroleum Storage performed. Tanks, and RP 1631, Interior Lining Of Underground z Storage Tanks. Also follow OSHA Regulation 29 CFR Parts 1910,Confined Space Entry Procedures,as well TYPICAL RETANK INSTALLATION as any applicable local safety regulations PROCEDURE: The Contractor cuts holes at the top axis of the steel - Entry openings are typically cut in the top of the tank at tank according to dimensions provided by FCI for the planned manway and fitting locations. purpose of providing space for the installation of manway (s)and containment collars in the new fiberglass ReTank. 4► Note: The above referenced entry holes are typically ; 60" x 60" square openings. These entry points have been created in the following ways: •oxygen/acetylene torch - Tripods may be installed over the manway hole cutouts. •abrasive cut-off type portable saw Chain hoists are attached to the tripods to provide support •saber saw for the panel insertion equipment. After the entry holes are completed, the Contractor is - The endcap opposite the entry hole is installed in 3 pieces responsible for and held in place with jacks until the permanent fiberglass • removing slag, burrs or any other irregular surface seams are applied. (resulting from the creation of the entry holes)from the edges of the entry holes • grinding the external tank surface(down to bare metal) for an area of 6"around the perimeter of each (2)of the 60"x 60"openings • removing any brackets, braces, fittings or anything - Prefabricated panels are hinged together in groups of 3 +_ that protrudes into the interior of the tank that would (designated as tri-folds),folded together and secured with interfere with an intimate fit of the fiberglass to steel straps. • removing all loose debris from the interior of the tank 2