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0 • <br />TANK ANNULAR TESTING <br />Test Method By: <br />Test Method Uses: <br />Measuring Equipment Used: <br />• Manufacturer <br />Pressure <br />Vacuum Gauge <br />Industry Standard <br />• Vacuum <br />(range 0 to 30 inches Hg) <br />Professional Engr. Other (see below) <br />Hydrostatic Other (see below) <br />Description <br />Tank #1 <br />Tank #2 <br />Tank #3 <br />Yes <br />Tank manufacturer <br />Xerxes <br />Xerxes <br />Xerxes <br />Yes <br />Yes <br />Tank material <br />FRP <br />FRP <br />FRP <br />0:02 <br />Tank capacity (US gallons) <br />10,000 <br />10,000 <br />8,000 <br />9:05 AM <br />9:20 AM <br />Product stored <br />Gasoline - 87 <br />Gasoline - 89 <br />Gasoline - 91 <br />Test end time <br />9:40 AM <br />Is this amulti-compartment tank? <br />No <br />No <br />No <br />10 <br />10 <br />Dry or Brine filled annular? <br />if brine Tilted, perform no vacuum testing) <br />Dry <br />Dry <br />Dry <br />Change in vacuum (inches Hg) <br />0 <br />0 <br />0 <br />Pass/Fail threshold (inches Hg /hour) <br />2 <br />2 <br />2 <br />TEST RESULT <br />PASS <br />PASS <br />PASS <br />Monitoring system show normal annular? <br />Comments: <br />Yes <br />Yes <br />Yes <br />Is water table above tank bottom? <br />Unknown <br />Unknown <br />Unknown <br />Was sensor removed for testing? <br />Yes <br />Yes <br />Yes <br />Was sensor properly replaced after testing? <br />Yes <br />Yes <br />Yes <br />0:02 <br />0:04 <br />0:03 <br />Monitoring system show normal annular? <br />Comments: <br />Yes <br />Yes <br />Yes <br />Is water table above tank bottom? <br />Unknown <br />Unknown <br />Unknown <br />Was sensor removed for testing? <br />Yes <br />Yes <br />Yes <br />Was sensor properly replaced after testing? <br />Yes <br />Yes <br />Yes <br />Wait time for vacuum to stabilize (hr:min) <br />0:02 <br />0:04 <br />0:03 <br />Test start time <br />8:40 AM <br />9:05 AM <br />9:20 AM <br />Initial vacuum (inches Hg) <br />10 <br />10 <br />10 <br />Test end time <br />9:40 AM <br />10:05 AM <br />10:20 AM <br />Final vacuum (inches Hg) <br />10 <br />10 <br />10 <br />Test duration (hrmin) <br />1:00 <br />1:00 <br />1:00 <br />Change in vacuum (inches Hg) <br />0 <br />0 <br />0 <br />Pass/Fail threshold (inches Hg /hour) <br />2 <br />2 <br />2 <br />TEST RESULT <br />PASS <br />PASS <br />PASS <br />2003 Walton Engineering, Inc. <br />