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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 /> Test Equipment Used: Gast Vacuum Pump/Vacuum Gauges in Hg. Equipment Resolution: - '/"r-30" Hg. <br /> Tank#1,3&4 Tank#2 Tank# Tank# <br /> Is Tank Exempt From Testing?' No No <br /> Tank Capacity: 20K Split 12/4/4 l OK <br /> Tank Material: Glass/Steel Glass/Steel <br /> Tank Manufacturer: Modern Welding Mosier Brothers <br /> Perms Tank <br /> Product Stored: 87 West/91/Diesel 87 East <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: 10:40 9:50 <br /> Final Reading(RF): -10"Hg. -10"Hg. <br /> Test Duration: 2 Hours 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 Yes Yes <br /> verified functional after testing? <br /> Comments—(include information on repairs made prior to testing, and recommended follow-up for failed tests) <br /> Tank#1,3&4 is a 20k Three Compartment 12K Regular 87,4K Super 91,&4K Diesel. <br /> Tank#2 is a Single Compartment 10K Regular 87 and is the Siphon Tank to Tank#1. <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 />