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TANK ANNULAR TESTING <br /> Test Method By: • Manufacturer O Industry Standard O Professional Engr. O Other(see below) <br /> Test Method Uses: O Pressure • Vacuum o Hydrostatic o Other(see below) <br /> Measuring Equipment Used: Vacuum Gauge (range 0 to 30 inches Hg) <br /> Description Tank#1 Tank#2 Tank#3 Tank#4 <br /> Product stored Gasoline-91 Gasoline-89 Gasoline-87 Diesel <br /> Tank manufacturer Unknown Unknown Unknown Unknown <br /> Tank material Steel Steel Steel Steel <br /> Tank capacity (US gallons) 10,000 10,000 12,000 10,000 <br /> Is this a multi-compartment tank? No No No No <br /> Dry or Brine filled annular? <br /> Monitoring system show normal annular? <br /> Is water table above tank bottom? <br /> Was sensor removed for testing? <br /> Was sensor properly replaced after testing? <br /> Wait time for vacuum to stabilize (hr:min) <br /> Test start time <br /> Initial vacuum (inches Hg) <br /> Test end time <br /> Final vacuum (inches Hg) <br /> Test duration (hr:min) <br /> Change in vacuum (inches Hg) <br /> Pass/Fail threshold (inches Hg/hour) <br /> TEST RESULT <br /> Comments: <br /> © 2011 Walton Engineering,Inc. <br />