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. Table 2 - Summatof VES Operation <br /> • <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 MBenzene 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 1 2 <0 17 <0 008 9471 <br /> 05-26-99 16835 72 1 12 0 14,438 002 00003 176 1843 18 1 l 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 1857 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 1519 15 1 14,540 032 00140 179 1850 14 08 0 014 00008 5 36 <br /> 09-16-99 17480 1705 527 29 14,541 1178 05845 179 1765 11 06 0 069 00035 9795 <br /> 09-20-99 17555 144 8 26 1 14,587 055 00230 180 1695 9 05 0 003 00001 6289 <br /> 10-26-99 17556 113 1 928 33 14,588 1443 04746 180 1537 156 76 35 16 8324 <br /> 10-29-99 17629 153 1 87 4 14,645 0 14 00064 181 325 8 17 1 1 8 0 055 00052 8033 <br /> 11-16-99 17629 123 1 314 12 14,645 862 03089 181 4007 11 14 0 14 0 016 9650 <br /> I1-19-99 17695 1799 39 2 14,665 057 00296 182 3662 132 15 0 039 00041 6608 <br /> 12-13-99 17696 1152 113 4 14,665 3 45 01156 182 4007 145 1 8 0 152 00178 8721 <br /> 12-16-99 17771 1610 8 0 14,672 021 00097 182 2980 26 02 0 029 00025 67 13 <br /> Explan2tsan- <br /> lbslday = 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 /> i System shut down on 10/26/97 due to the failure of the flame detector The flame detector was replaced on 1215/97, and <br /> the system operated approzimatley 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 12/21197 <br /> 2 Sample of effluent inadvertently not collected on 3122199 <br /> Stockton,to 6981 140124 04 <br />