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a. Steel or clad tanks <br /> i. interior lining cleaned by wipe down <br /> ii. visual check of lining <br /> iii. thickness test of lining <br /> iv. hardness test of lining <br /> v. electrical resistance holiday detector test <br /> vi. ultrasound thickness test of steel walls by appropriately trained person <br /> vii. vacuum test <br /> b. Fiberglass tanks <br /> i. interior lining cleaned by wipe down <br /> ii. visual check of lining <br /> iii. thickness test of lining <br /> iv. hardness test of lining <br /> v. interior diameter measurements <br /> vi. vacuum test(not required if submerged by 50% of depth in ground water) <br /> Stacy Rivera <br /> Lead Sr. Registered Environmental Health Specialist <br /> San Joaquin County Environmental Health Department <br /> 1868 E. Hazelton Ave., Stockton, CA 95205 <br /> phone(209)616-3043 <br /> fax(209)468-3433 <br /> *Test notifications and test results should be sent to the general UST email: ust(a)sjgov.org* <br /> *NOTE* I will be out of office every other Friday. If you are unable to reach me on those days and need to speak to someone <br /> immediately, please call (209)468-3420 or email our UST email address. <br /> January 3, 17, 311 February 14,28 1 March 14,28 1 April 11,25 <br /> EHD will be closed for the holidays on: <br /> January 1,20 1 February 17 1 May26 <br /> 4 <br />