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SWRCB, January 2002 Is 0 Page _1_ of 2_ <br />Test Method Developed By: <br />Tank Manufacturer <br />X Industry Standard Professional Engineer <br />Other (Specs ) <br />Test Method Used: <br />Pressure <br />X Vacuum Hydrostatic <br />Other (Spec) <br />Test Equipment Used: Vacuum Gauge <br />Equipment Resolution: 1" <br />"TankExemptrom <br />Tank # g7 -Oct Tank # Tank # Tank # <br />Testing?' <br />Yes X No <br />Yes No Yes No Yes No <br />Tank Capacity: <br />12,000 <br />Tank Material: <br />Steel <br />Tank Manufacturer: <br />Tisco <br />Product Stored: <br />Regular Unleaded <br />Wait time between applying <br />pressure/vacuum/water and <br />30 min <br />starting test: <br />Test Start Time: <br />10:00 am <br />Initial Reading (R;): <br />20" <br />Test End Time: <br />11:00 am <br />Final Reading (RF); <br />22" <br />Test tion: <br />1 How <br />Change in Reading (RF -RI). <br />2" Vacuum Increase <br />Pass/Fail Threshold or Criteria: <br />Was sensor removed for testing? <br />X Yes No <br />Yes No NA Yes No NA Yes No NA <br />NA <br />Was sensor properly replaced and <br />X Yes No <br />Yes No NA Yes No NA Yes No NA <br />verified fimctional after testis ? <br />I NA <br />Comments — (include information on repairs made prior to testing, and recommOtt&llow-up for failed tests) <br />Test was required as part of repair permit issued by San Joaquin Co. Heath. Initial call was for repairs to <br />Secondary containment sump reducer that had failed over time. Secondary containment test is required <br />Anytime concrete is broken to make repairs to a tank. Initial secondary test failed, we applied 20si pressure <br />To secondary annular space and located leak at the Regular fill riser bungffiberglass containment joint. <br />Vacuum was applied to secondary annular space and sealant was applied to the failed ioint. <br />' Secondary containment systems where the continuous monitoring automatically monitors both the primary and secondary <br />containment, such as systems that are hydrostatically monitored or under constant vacuum, are exempt from periodic containment <br />testing. (California Code of Regulations, Title 23, Section 2637(x)(6)) <br />