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Table 2 - Sumniao VES Operation • <br /> Unocal Service Station No 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Destruction <br /> Hour Wellhead Influent Effluent Ef iic <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 (ppm ) (lbs/day) MBenzene (scfm) (ppmN) (lbs'day) (ppmr) (lbs/day) (%) <br /> 12 05 98' 10218 -- 219 ---- <0 3 ---- -- --- <3 ---- <0 03 -- 9880 <br /> 12-21-97 10218 System restarted <br /> 1229-97 10442 1256 224 9 12,173 <1 4 <0 053 169 3607 <3 <0 3 <0 03 <0 003 9882 <br /> 01-26-98 11031 1478 343 16 12,479 <1 4 <0 062 171 1939 <3 <0 2 <0 03 <0 002 9923 <br /> 02-2798 11801 137 6 501 22 13,088 <0 7 <0 029 172 2003 <3 <0 2 <0 03 <0 002 9947 <br /> 0325-98 12422 129 8 119 5 13,434 <0 3 <0 011 173 1950 4 0 2 <0 03 <0 002 9667 <br /> 0420-98 13045 1427 224 10 13,629 <0 1 <0 006 173 1685 12 0 6 <0 03 <0 001 9482 <br /> 05-27-98 13846 1469 127 6 13,897 <0 1 <0 006 173 1914 17 10 <0 03 <0 002 8667 <br /> 06-3099 14467 1455 45 2 14 000 <0 03 <0 001 173 1930 12 0 7 <0 03 <0 002 73 53 <br /> Exo1anation <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 /> '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 approximatle}3 hours Influent and effluent samples were collected to confirm detector operation <br /> and destruction effeciency,then the system was shutdown pending recuept of analytical data Dilution valve control <br /> motor replaced and system restarted on 12/21/97 <br /> d/unocaV4855/6981 RPT X1S <br /> 140124 04 <br />