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{ <br /> . Table 2 - SummarO VES Operation . <br /> Unocal Service Station No 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> estruction <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) abs/day) MBenzene (scfm) (ppmv) (lbs/day) (ppmv) (lbs/day) M <br /> 09-20-00 18307 1 1121 63 3 05 14,752 <0 144 <0 0064 183 2856 <05 <0 05 <0 003 <0 0002 >99 17 <br /> 09-28-00 18360 1644 45 2 34 14,758 <0 029 <0 0014 183 4567 <05 <0 1 <0 003 <0 0004 >98 82 <br /> ExplanaliQn. <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 /> i System shut down on 10/26/97 due to the failure of the flame detector The flame detector was replaced on 12/5197, and the system operated approximatley 3 hours <br /> Influent and effluent samples were collected to confirm detector operation and destruction effectency, then the system was shut down pending reciept of analytical data <br /> Dilution valve control motor replaced and system restarted on 12/21/97 <br /> 2 Sample of effluent inadvertently not collected on 3122199 <br /> 3 Service station facilities were removed Power to VES originally came off the main breaker panel for the service station Station demolition required anew <br /> service drop from power company, which was not completed until August 2000 <br /> i <br /> I <br /> I <br /> Stockton,to 6981 140124 04 <br />