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Table A-3 <br /> Operational Uptime of Soil Vapor Extraction System <br /> ARCO Service Station No.548 <br /> 1612 Hammer Lane,Stockton,California <br /> Uptime CumulativeTime Total Uptime <br /> Time between Percent Since System <br /> Sample Date Hour Meter readings Between Uptime g Readings p Cause of DowntimelShutdown Startup Since Startup <br /> (hours) (days) (%) (days) (days) <br /> 1012010312:30 23482.4 39 21 53.82% Unknown 1108 769 <br /> System shutdown on arrival due to high water <br /> 11/18/03 11:00 24034,5 29 23 79.50% level;System ran 552.1 hours(23 days)since 1137 792 <br /> October site visit <br /> System shutdown on arrival-based on chart <br /> 12/22/03 8:30 24584.5 34 23 67.61% recorder,system ran until 12-11-03,system 1171 815 <br /> down from 12/11/03 24:00-12/22/03 9:00. <br /> 1/13104 9:30 25113.5 22 22 100% No shutdown this period 1193 837 <br /> 2/10104 10:00 25786.0 28 28 100% No shutdown this period 1221 865 <br /> 3/11/04 11:00 26507.0 30 30 100% No shutdown this period 1251 895 <br /> 418/04 11:00 27178.5 28 28 100% No shutdown this period 1279 923 <br /> System shutdown on arrival due to power <br /> 5118104 9:00 28045.8 40 36 91% outage,system ran until 5/14104 16:00;867.3 1319 959 <br /> hrs(36.1375 days)since 418/04. <br /> 6/9/04 11:30 28577.5 22 22 100% Permanently Shut Down 1341 981 <br /> QUARTERLY UPTIME(SAYS) <br /> QUARTERLY TOTAL(DAYS) 90 <br /> QUARTERLY PERCENT UPTIME(%)im <br /> TOTAL UPTIME SINCE STARTUP(DAYS} 1341 <br /> TOTAL UPTIME SINCE,STARTUP. °k), „73.2% <br /> Note: Any constants in equations for 1011612003 are from 9/23/2003 <br /> Please note: Data starts at 4003 <br /> Table A-3 <br /> O&M-0548-20mr04 <br /> 1 of 1 <br />