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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(Spec) <br /> Test Method Used: ❑Pressure X Vacuum ❑Hydrostatic <br /> ❑Other(Spec) <br /> rEquipment Used: Gast Vacuum Pump/Vacuum Gauges in Hg. Equipment Resolution: -'/2"x-30 Hg. <br /> MMMM <br /> Tank#1 Tank#2 Tank#3 Tank#4 <br /> pt From Testing?' No No No No <br /> : 12K 10K 10K 500 Gallons <br /> Tank Material: Fiberglass Fiberglass Fiberglass Fiberglass <br /> Tank Manufacturer: Owens Corning Owens Corning Owens Corning Owens Corning <br /> Product Stored: Regular 87 Super 91 Plus 89 Waste Oil <br /> Wait time between applying 30 Minutes 30 Minutes 30 Minutes 30 Minutes <br /> vacuum and starting test: <br /> Test Start Time: 12:40 12:40 12:40 12:30 <br /> Initial Reading(RI): -10 Hg. -10 Hg. -10 Hg. -10 Hg. <br /> Test End Time: 1:40 1:40 1:40 1:30 <br /> Final Reading(RF): -10 Hg. -10Hg. -10 Hg. -10 Hg. <br /> Test Duration: 1 Hour 1 Hour 1 Hour 1 Hour <br /> Change in Reading(RF-R;): 0 Hg. 0 Hg. 0 Hg. 0 Hg. <br /> Pass/Fail Threshold or Criteria: ➢ -2 Hg. ➢ -2 Hg. ➢ -2 Hg. ➢ -2 Hg. <br /> Test Result: Pass Pass Pass Pass <br /> Was sensor removed for testing? No No No No <br /> Was sensor properly replaced and N/A N/A N(A N/A <br /> verified functional after testing? :E <br /> Comments— (include information on 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 />