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T 7 <br /> Thermal Oxidizer Destruction EfficientY and Emission Rate Calculations <br /> Cohn Property <br /> 3755 Munford Avenue <br /> Stockton, California <br /> Meter Stack Flow <br /> Date Rate Stack Sample Results my Emission Rates (lb/day) Destruction Efficient <br /> Hours) (scfm) TPHS Benzene TPHg Benzene TPHa Benzene <br /> 8124105 1765 <br /> 912105 3949 148 <50 062 025 00022 998 998 <br /> 10/10/05 6307 171 <50 <0 050 029 00025 998 997 <br /> 11!7105 8152 172 <50 <0 050 029 00025 998 99 3 <br /> 12112105 1,6258 168 <50 <0 050 028 00025 994 952 <br /> 119106 2,0752 184 <50 <0 050 031 00027 993 902 <br /> 216106 2,7485 179 <50 <0 050 030 00026 98 9 623 <br /> 3123106 3,6798 208 <50 <0 050 035 00030 98 7 594 <br /> 4121106 4,377 0 204 r <50 <0 050 034 00030 990 59 1 <br /> 519106 4,8046 - 252 _ <50 <0 050 042 00037 992 637 <br /> 6115106 5,6907 251 <50 <0 050 042 00037 987 638 <br /> Note 1 "<"indicates analytical method detection limit, method detection limits are used as stack concentrations to estimate emission rates and DEs <br /> MWTPHg=90 MWBemmne= 78 11 MWM-rBE =88 15 <br /> Sample Calculations <br /> Ib/day=pounds per day NA=Destruction ratio not calculable due to influent&effluent concentrations below laboratory detection limits <br /> NS=not sampled <br /> ppmv=parts per million by volume=ft31 1x10 ft3 <br /> scfm=standard cubic feet per minute <br /> Emission rate=flow rate(ft31mm)*concentration(ft31 1x108 ft)*MW(IbAb-mole]1384 5(ft3llb-mole)* 1440 min/day <br /> Destruction Efficiency=[(Extraction rate-Emission rateyExtraclion rale]x 100% <br /> ft3=cubic feet <br /> APEX ENVIROTECH, INC <br /> Page 1 of 1 COH58 001 <br />