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sTable 2 - Summaef VES Operation • <br /> Unocal Service Station No 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Destruction <br /> Hour Wellhead Influent Effluent Effic <br /> Date Meter Flow Rate TPHg MTPHg Cumulative Benzene MBenzLne Cumulative Flow Rate TPHg MTPHg Benzene MBenzene TPHg <br /> Reading (scfm) (ppmv) (lbs/day) MTPHg (ppmv) (lbs/day) MBenzene (scfm) (ppmv) (lbs/day) (ppmv) (lbs/day) M <br /> 05-24-99 16789 595 448 8 14,429 26 15 0 453 176 1646 24 12 <0 17 <0 008 9471 <br /> 05-26-99 16835 721 12 0 14,438 002 00003 176 1843 18 1 1 0 016 00009 -5403 <br /> 05-26-99 System shut down due to low influent concentrations <br /> 06-19-99 16835 1 596 219 4 14,438 920 0 1596 176 1628 17 09 0 086 00041 92 17 <br /> 06-21-99 16883 90 1 23 1 14,442 066 00173 177 - 185 7 26 1 6 0 078 00042 -1494 <br /> 07-27-99 17301 1020 24 1 14,455 184 00546 177 1687 7 04 0 060 00030 7283 <br /> 08-02-99 System shut down due to low influent concentrations <br /> 08-22-99 17457 1107 633 22 14,530 1753 05649 179 1804 7 04 0 052 00027 9889 <br /> 08-24-99 17479 151 9 15 1 14,540 032 00140 179 1850 14 08 0 014 00008 536 <br /> 09-16-99 17480 1705 527 29 14,541 11 78 05845 179 1765 11 06 0 069 00035 9795 <br /> 09-20-99 17555 1448 26 1 14,587 055 00230 180 1695 9 05 0 003 00001 6289 <br /> Explanation, <br /> lbs/day = pounds per day <br /> MBenzene = mass of benzene <br /> MTPHg = mass of TPHg <br /> ppmv = parts per million by volume <br /> scfm = standard feet per minute <br /> 1 System shut down on 10/26/97 due to the failure of the flame detector The flame detector was replaced on 1215197,and <br /> the system operated apprortmatley 3 hours Influent and effluent samples were collected to confirm detector operation <br /> and destruction effeciency, then the system was shut down pending reciept of analytical data Dilution valve control <br /> motor replaced and system restarted on 12/21/97 <br /> 2 Sample of effluent inadvertently not collected on 3122199 <br /> 3 Sample bag for effluent sample deflated during transport to laboratory <br /> I <br /> I <br /> i <br /> Stockton, to 6981 14012404 <br />