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■ <br />ti; <br />' "i. <br />f' ’ <br />■ <br />r ;• <br />'t ■ <br />1-m- <br />H’ <br />% <br />trri^ <br />i.. <br />OS/13/91 lar/isoa j cmr/bo Aai334 <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />11 <br />12 <br />U <br />/ <br />15 <br />16 <br />18 <br />19 <br />20 <br />21 <br />22 <br />21 <br />24 <br />25 <br />26 <br />27 <br />28 <br />29 <br />30 <br />31 <br />32 <br />33 <br />34 <br />35 <br />36 <br />cause it to have a release due to corrosion during its operating <br />life; and <br />/ (2) owners and operators maintain records that <br />demonstrate compliance with tho requirements of subitem (ij for <br />the remaining life of the tank. <br />E. The tank construction and corrosion protection are <br />determined by the commissioner to be designed to prevent the <br />release or threatened release of a stored regulated substance in <br />a manner that is no less protective of human health and the <br />environment than items A to O. The commissioner's determination <br />under this item must be obtained in writing and owners and <br />operators must keep the determination for the life of the tank. <br />Subp. 3. Codes of practice for tanks. Codes of practice <br />for subpart 2 are described in items A to C. <br />A. The following codes of practice apply to subpart <br />2. item A: <br />(1) Underwriters Laboratories UL 1316, <br />Class-Piber-Reinforced Plastic Underground Storage TanKs for <br />Petroleum Products; <br />(2J Underwriters Laboratories of Canada <br />CAN4>S61S*-M83, Standard for Reinforced Plastic Underground Tanks <br />for Petroleum Products; or <br />(3) American Society of Testing and Materials <br />04021-86, Standard Specification for Clasa-Piber-Reinforccd <br />Polyester Underground Petroleum Storage Tanks. <br />8. The following codes of practice apply to subpart <br />2, item •: <br />(1) Steel Tank Institute Specifications for <br />STI-P3 System of External Corrosion Protection of Underground <br />Steel Storage Tanks; <br />(2) Underwriters Laboratories OL 1746, Corrosion <br />Protection Systems for Underground Storage Tanks; <br />(3) Underwriters Laboratories of Canada <br />CAN4—S603.1-M8S, Standard for Galvanic Corrosion Protection <br />Systems for Steel Underground Tanks for Flammable and <br />Combustible Liquids; <br />Approved <br />dy Atvffpr