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TANK ANNULAR TESTING <br /> Test Method By: • Manufacturer ` Industry Standard C Professional Engr. O Other(see below) <br /> Test Method Uses: Pressure • Vacuum Hydrostatic Other(see below) <br /> Measuring Equipment Used: vacuum Gauge (range 0 to 30 inches Hg) <br /> Description Tank#1 Tank#2 <br /> Tank Manufacturer Xerxes Xerxes <br /> Tank Type - FRP FRP _ <br /> Tank Capecity 10.000 8,000 _. <br /> Product Stored Gasoline-87 Gasoline-91 <br /> Is this a mufti-compartment tank? No No _ <br /> Brine filled or Dry Annular? Dry J. Dry <br /> (if brine filled,perform no vacuum testing) <br /> Monitoring system show normal annular? Yes Yes <br /> Is water table above tank bottom? Unknown Unknown <br /> Was sensor removed for testing? No No <br /> Was sensor properly replaced after testing? N/A N/A <br /> Waft time for vacuum to stabilize hr:min 0:15 0:10 <br /> Test start time 8:00 AM 8:01 AM <br /> Initial vacuum(inches Hg) 10 10 <br /> Test end time 9:00 AM 9:01 AM <br /> Final vacuum(inches H 10 10 <br /> Test duration hours:minutes) 1:00 1:00 <br /> Change in vacuum(inches Hg) 0 0 <br /> Pass/Fail threshold(inches Hg/hour) ❑. 2 7] 2 _ <br /> TEST RESULT PASS PASS <br /> Comments: <br /> (c) 2D02 Walton Engineering, Inc. <br />