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. <br />m' <br />^ m- <br />§■' <br />m.I?! • ' <br />JU •. ',;\. <br />;>•I <br />*.:i,. <br />W. <br />III;- <br />l4‘--- <br />life: <br />05/13/91 taiVISOR 1 Cxa/30 AR18J4 <br />UNDiHCaCUND STCRACE TANK SYSTi.'IS <br />OESIGM, CONSTRUCTION, INSTALLATION, AND NOTIFICATION <br />3 7150.0100 PERFORWANCT STANDARDS FOR NrN UNDERGROUND STORAGE TANK <br /># <br />4 STSTE.MS. <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />Subpart 1. Purpose. To prevent releases due to structural <br />. '• • • <br />failure, corrosion, or spills and overfills for as lonq as the <br />underground storage tank systea is used to store regulated <br />rubstanccs, all owners and operators of new underground storage <br />as > <br />tank aysteas must matt the rtquircmtnta in subparts 2 to 8. <br />Subp. 2. Tanks. Each tank must be properly designed and <br />ccnstructed, and any part underground that routinely contains <br />product must be protected from corrosion using one of the <br />methods specified in items A to E. The corrosion protection <br />methods in items A to D must be in accordance with one of the <br />15 <br />16 <br />17 <br />'i. <br />19 <br />20 <br />21 <br />22 <br />23 <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 />codes at practice in subpart 3 developed by a nationally <br />recognized association or independent testing laboratory; <br />A. The canK is constructed of Ciberglass*reinforced <br />plastic. <br />B. The tank is constructed of steel and cathodically <br />protected in the following manner: <br />(1) the tank is coated with a suitable dielectric <br />material; <br />(2) field-installed cathodic protection systems <br />are designed by a corrosion expert; <br />(3) impressed current systems are designed to <br />allow determination of current operating status as required in <br />pare 7150.0210, subpart 4; and <br />(4) cathodic protection systems are operated and <br />maintained according to part 7150.0210. <br />E. The tank Is constructed of a steel- and <br />fiberglass-reinforced plastic composite. <br />0. The tank is constructed of metal without <br />additional corrosion protection measures provided that: <br />(1) the tank is installed at a site that is <br />determined by a corrosion expert not to be corrosive enough to <br />Approv«tf <br />by o#