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2.5 The primary tank shall be mounted within the secondary containment cabinet by means <br />of at least four (4) stabilizing brackets to prevent the primary tank from shifting. <br />2.6 The primary tank shall be placed within the secondary containment cabinet with <br />minimum of 3" visual clearance around all sides to allow for 100% visual inspection. <br />2.7 The exterior of the primary tank shall be cleansed of foreign material, and coated with a <br />corrosion resistant industrial paint (3 to 5 mils dry film thickness). <br />3.0 ENVIRONMENTAL TANK ENCLOSURE: <br />3.1 The Environmental Enclosure (secondary leak containment tank) shall be rectangular in <br />design and constructed with a minimum 12 ga. steel. All welds shall be full penetration. <br />3.2 The Environmental Enclosure shall be separate from the primary tank, and shall not be <br />welded or attached to the primary tank in any fashion. <br />3.3 The secondary leak containment tank shall completely enclose the primary tank and all <br />operating equipment (360° radius), providing secondary containment to the primary tank <br />and operating equipment. It shall be sized to contain 110% of the primary tank storage <br />capacity. <br />3.4 The inside bottom of the secondary tank shall be fitted with a minimum of two (2) raised <br />steel channels (a minimum of 2" in height), to support the primary tank above the <br />secondary tank floor. <br />3.5 The secondary tank shall be supported by two (2) 4" high steel support feet channels with <br />integral anchoring holes to maintain ground clearance for better anchoring to concrete <br />foundation. <br />3.6 The secondary tank shall contain a removable, locking roof that provides at least 30" of <br />clearance from the top of the primary tank to the bottom of the roof. <br />3.7 The secondary containment cabinet shall contain louvered vents on the cabinet, which is <br />above the level of the primary tank. These vents shall provide a minimum of 20" of <br />venting capacity. <br />3.8 The secondary containment cabinet shall contain a knock -out hole above the primary <br />tank level to provide for the working vent installation. Internally threaded couplers for air <br />supply hose (1/2") and product suction (3/4") shall be welded into the side of the cabinet <br />above the top of the primary tank, so that the respective hoses are easily installed, and <br />contractors do not have to create any hole in the side of the cabinet. The cabinet shall <br />not be drilled or penetrated, or in any way destroy the integrity of its containment <br />capacity. <br />3.9 The secondary containment cabinet shall include a hinged, locking security door with <br />viewport for the product level gauge and OPTIONAL annular space leak detection gauge, <br />and shall be mounted on a removable door frame, at or above the level of the primary tank. <br />This will provide access to the components for service or extraction operations. The <br />removable door frame shall allow for easy replacement of the door and frame if they are <br />damaged during operating procedures. <br />3.10 The interior surface of the secondary containment cabinet shall be cleansed of foreign <br />material, and coated with a corrosion resistant industrial paint (3 to 5 mils dry film <br />thickness). The exterior surface of the secondary containment cabinet shall be cleansed <br />March 2009 • @Copyright 2009 • Containment Solutions, Inc. • All Rights Reserved • Pub. No. SW5501 B <br />