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SWRCB,January 2002 Page of <br /> 4. TANK ANNULAR TESTING <br /> Test Method Developed By: X Tank Manufacturer /1 Industry Standard ❑Professional Engineer <br /> ❑Other(Spec) <br /> Test Method Used: ❑Pressure X Vacuum ❑Hydrostatic <br /> ❑Other(Spec) <br /> Test Equipment Used: Gast Vacuum Pump/Vacuum Gauges in Hg. Equipment Resolution: - '/z"x-30"Hg. <br /> Tank#1 Tank#2&3 Tank# Tank# <br /> Is Tank Exempt From Testing?' No No <br /> Tank Capacity: 12K 12K Split 6K/6K <br /> Tank Material: Glass Steel II Glass Steel H <br /> Tank Manufacturer: Modern Welding Modern Welding <br /> Product Stored: Regular 87 Super 91/Diesel <br /> Wait time between applying 10 Minutes 10 Minutes <br /> vacuum and starting test: <br /> Test Start Time: 8:40 8:50 <br /> Initial Reading(Ri): -10"Hg. -10"Hg. <br /> Test End Time: 9:40 9:50 <br /> Final Reading(RF): -10"Hg. -10"Hg. <br /> Test Duration: 1 Hour 1 Hour <br /> Change in Reading(RF-RI): 0"Hg. 0"Hg. <br /> Pass/Fail Threshold or Criteria: No Loss in Hg. No Loss in Hg. <br /> Test Result: Pass Pass <br /> Was sensor removed for testing? Yes Yes <br /> Was sensor properly replaced and <br /> verified functional after testi n ? Yes Yes <br /> Comments— (include information on repairs made prior to testing, and recommended follow-up for failed tests) <br /> t 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(a)(6)} <br />