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Nella Oil # 487 <br />Address: 983 Moffat Blvd <br />'city, state Manteca, CA 95336 <br />Test Date: December 26, 2006 <br />TANK DATA <br />Tank # #3 - <br />Tank Product Diesel <br />Tank Size pnches / g.11 -n.396.00 12,000 <br />Product onches / gallons] 75.44 10,174 <br />(Water added) 2 <br />[inches / gallons] 20.56 1,826 <br />3 <br />WUlla_ge <br />ter in Tank pnches / gallons] 0.00 0 <br />Average [ml] <br />Tank Bottom Fm Grade [inches 158.00 _ <br />Water intrusion Test Period <br />1 <br />Began <br />GROUND WATER DEPTH <br />Ground Water From Grade ["; N/A <br />Method Determined Double Wall Tank <br />Location Annular Dry <br />PRESSURE SENSOR CALCULATION <br />" of product 75.44 X Weight of product .032 = 2.414 PSI (1) <br />" of water in tank 0 X Water weight .036 = 0 PSI (2) <br />PSI (1) + PSI (2) = Positive head psi in tank = 2.414 PSI (3) <br />" of water outside tank 0 X Water weight .036 = 0 PSI (4) <br />Head psi PSI (3) - Outside water psi PSI (4) = 2.414+/- PSI (5) <br />Always add 0.5 PSI <br />PSI (5) + PSI (6) = Test pressure 2.914 PSI (7) Must be > 0.5 <br />TEST EVALUATION <br />ACOUSTICAL TEST <br />X PASS <br />_ FAIL _ (Ullage) _ (Product (Dry)) <br />_ INCONCLUSIVE <br />WATER SENSOR INDICATION <br />Water Intrusion _ No Water _ NIA X <br />it <br />"A" Factor /.05 = X 60 min = Time of Test <br />2006 Walton Enaineerina. Inc <br />'Tj est Equipment Used: EZY 3 Locator Plus <br />Test Method aY: Manufacturer <br />Tank Manufacturer: Unknown <br />Tank Matenal Steel <br />WATER SENSOR CALIBRATION <br />Calibration # 1 <br />(Water added) 2 <br />3 <br />Average [ml] <br />Water intrusion Test Period <br />Began <br />Ended <br />TEST PERIOD CALCULATION <br />Avg Cal / 3780 = "A" Factor <br />"A" Factor /.05 = X 60 min = Time of Test <br />TIME OF TEST PERIOD FOR WATER SENSOR <br />VACUUM <br />Time <br />Pressure <br />Blower Started 8:55 AM <br />0.0000 <br />Test Pressure Reached 9:09 AM <br />2.9140 <br />Blower Stopped 9:09 AM <br />2.9140 <br />Test Began 9:09 AM <br />2.9140 <br />Test Ended 9:15 AM <br />2.9140 <br />COMMENT ON TEST EVALUATION <br />