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j:-.; <br />'S’i5!.'' '.V.,-».. ■■■ •''iiK: v;»:<-' <br />fw. <br />^ir.*'Jli-: :i!. <br />■ <br />»- . <br />9^ ¥ - --t-Tw ' <br />UMt.:' ■ <br />ite*' <br />SI+ .*^r'.- ■• . <br />i:A- <br />I#’ ^ <br />,V-»»-*^-, .,•■.■• r f. <br />'S0- <br />.'■Vw <br />iSb'-|i|§C'^' <br />1^'rS:'' <br />rite: <br />i <br />05/13/91 IXCVISOll I CMH/30 AJIli34 <br />1 <br />2 <br />3 <br />4 <br />5 <br />i <br />7 <br />t <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />1< <br />II), for cxanpl*, trench liners end jeekeeinq of double*welled <br />pipe. In addition, underground piping that conveys regulated <br />substances onder pressure oust be equipped with an autoaatie <br />line leak detector according to part 7150.0340, itea A. <br />IS) Other oethods of release detection eay be <br />used if owners and operators! <br />|a) deaonstrate to the eoNsissioner that an <br />alternate Mthod can detect a release of the stored substance as <br />effectively rs any of the aethods allowed in part 7150.0330. <br />iteas ■ tor X. can detect a release of petroleua; <br />|b) provide inforaation to the coaaissioner <br />on effective corrective action technologies, health risks, and <br />eheaical and physical properties of the scored substance, and <br />the characteristics of the underground storage tank site: and <br />|c) obtain apprevai froa the conihissioner to <br />use ti^ alternate release detection method before the <br />ihstallation and operation of the new underground storage tank <br />system. <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />29 <br />2f <br />27 <br />2f <br />29 <br />30 <br />II <br />32 <br />33 <br />34 <br />35 <br />7150.0330 HCTBODS OP RELCA5C OCTCCTION POh TANKS. <br />Each aethod of release detection for tanks used to aeet the <br />requireaents of part 7150.0310 aust be conducted according to <br />iteas A to X. <br />A. Product inventory control or another test of <br />equivalent perforsiance oust be conducted aonthly to detect a <br />^•iaaae of at least 1.0 percent flowthrough plus 130 gallons on <br />a aonthly basis in the following aanner: <br />11) inventory volume aeasureaents for regulated <br />substance inputs, withdrawals, and the amount still reaaining in <br />the tank are recorded each operating day: <br />12) the oquipaent used is capable of aeasuring <br />Che level of product over the full range of the tank's height to <br />the nearest one-eighth of an inch: <br />13) the regulated substance inputs are reconciled <br />with delivery receipts by aeasureaent of the tank inventory <br />volusM before and after delivery; <br />A( <br />•vnswtw <br />. -4ii <br />■I <br />1 <br />•4 <br />''1 <br />i" <br />? <br />i <br />'1 <br />;/• <br />-i <br />1 <br />■-jtoKYfxiff