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SWRCB,January 2002 Page of <br /> 4. TANK ANNULAR TESTING <br /> Test Method Developed By: X Tank Manufacturer Industry Standard Professional Engineer <br /> Other(Specify) <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 Tank#3 Tank# <br /> Is Tank Exempt From Testing?' No No No <br /> Tank Capacity: IOK IOK IOK <br /> Tank Material: Jacketed DW Steel Jacketed DW Steel Jacketed DW Sttellif <br /> Tank Manufacturer: Modern Welding Modern Welding Modern Welding <br /> Product Stored: Supreme 91 Regular 87 Diesel �' A C <br /> Wait time between applying 30 Minutes 30 Minutes 30 Minutes ENVIRONMENTAL <br /> vacuum and starting test: T T <br /> Test Start Time: 10:20 10:05 11:35 <br /> Initial Reading(Rj): -7 Hg. -7 Hg. -7 Hg. <br /> Test End Time: 11:20 11:05 12:35 <br /> Final Reading(RF): -7 Hg. -7 Hg. -7 Hg. <br /> Test Duration: 1 Hour 1 Hour 1 Hour <br /> Change in Reading(RF-Ri): 0 Hg. 0 Hg. 0 Hg. <br /> Pass/Fail Threshold or Criteria: No loss in Hg. No loss in Hg. No loss in Hg. <br /> Test Result: Pass Pass Pass <br /> Was sensor removed for testing? Yes Yes Yes <br /> Was sensor properly replaced and Yes Yes Yes <br /> verified functional after testing? <br /> Comments— (include information oti repairs made prior to testing, and recommended follow-up for failed tests) <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(a)(6)) <br />