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WALTON <br />ENGINEERING, INC. <br />Facility: Quik Stop Market #121 <br />Address: 1196 W. Louise Avenue <br />city, State . Manteca, CA 95336 <br />TeslDate: January 30, 2008 <br />TANK DATA <br />Tank # <br />1 <br />WATER SENSOR INDICATION <br />Water Intrusion No Water N/A <br />Calibration # 1 <br />(Water added) 2 <br />3 <br />Average (ml] 0 <br />Water intrusion Test Period <br />Began 12:00 AM <br />Ended 12:00 AM <br />Tank Product <br />Gasoline - 87 <br />INTRUSION TEST PERIOD CALCULATION <br />Tank Size [inches/ gallons] <br />96.00 <br />12000 <br />Product [inches/ gallons] <br />40.53 <br />5080 <br />Ullage [inches I gallons] <br />55.47 <br />6920 <br />Water in Tank [inches/ gallons] <br />0.00 <br />0 <br />Tank Bottom Fm Grade [inches 0.00 <br />150 <br />GROUND WATER DEPTH <br />Ground Water From Grade r" N/A" <br />Method Determined <br />Location <br />PRESSURE SENSOR CALCULATION <br />PSI (1) 40.53 (" product) X 0.026 (Weight product) = 1.054 <br />PSI (2) 0 (" water) X .036 (Water weight) = 0 <br />PSI (3) 1.054 PSI (1) + 0 PSI(2) = 1.054 (Positive head psi) <br />PSI (4) 0 (" water outside) X .036 (Water weight) = 0 <br />PSI (5) 1.054 PSI (3) - 0 PSI (4) = 1.054 <br />PSI (6) Add 0.5 PSI <br />PSI (7) 1.054 PSI (5) + 0.5 PSI ( 6) = 1.554 (Test pressure) <br />TEST EVALUATION <br />(ACOUSTICAL TEST RESULTS <br />PASS <br />0 2006 Walton Engineering, Inc. <br />o <br />TANK TESTING <br />DATA SHEET !' l;y:anarrelnwq <br />ft <br />Pooleeum mus" <br />Test Equlpment used: EZY 3 Locator Plus <br />Test Method By: Manufacturer <br />rank Mmufacturer. Xerxes <br />rank Material Double Wall Fiberglass <br />WATER SENSOR CALIBRATION <br />WATER SENSOR INDICATION <br />Water Intrusion No Water N/A <br />Calibration # 1 <br />(Water added) 2 <br />3 <br />Average (ml] 0 <br />Water intrusion Test Period <br />Began 12:00 AM <br />Ended 12:00 AM <br />INTRUSION TEST PERIOD CALCULATION <br />1. 0 (Avg ml added) / 3780 = 0 ("A" Factor") <br />2. 0 ("A" Factor) /.05 = 0 X 60 min = 0 <br />3. TIME REQUIRED FOR WATER SENSOR TEST = 0 MINUTES <br />VACUUM <br />Time Pressure <br />Blower Started 9:55 AM 0.0000 <br />Test Pressure Reached 10:20 AM 1.5680 <br />Blower Stopped 10:20 AM 1.5660 <br />Test Began 10:20 AM 1.5620 <br />Test Ended 10:30 AM 1.5570 <br />COMMENT ON TEST EVALUATION <br />