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Working To Restore Nature <br /> Addendum One to Remedial Action Plan March 1, 1993 <br /> Coca-Cola Former Distribution Facility, Stockton, California 5400601 <br />' Month 1: TPHg Emission Rate at Startup Atter Abatement by the Thermal Oxidizer <br /> According to the manufacturer data summarized in Appendix C, the thermal oxidizer is <br /> designed to mamtain, at a minimum, a temperature of 1800 T. This will result in a <br /> treatment efficiency of > 95%, but no less than 95% at worst case. Assuming worst case <br /> TPH Emission Concentration after Abatement = 1 - 0.95 x 1185 my <br /> g ( } � PP <br /> = 59.3 ppmv <br /> 1 And, <br /> TPHg Mass Emission Rate from Stack - (1 - 0.95) 35.6 lb TPHg/day <br />' = 1.8 lb TPHg/day <br /> Month 1: Benzene Extraction Rate at Startup -„VEW-3 On Line <br />' <br /> Vapor samples collected during the vapor extraction test (RESNA, January Y1993) reported <br /> an average benzene concentration for all nine well samples of 271 mg/m3. Benzene <br /> generally comprised about 5% of the TPHg vapor (weight to volume) The maximum initial <br /> benzene concentration at startup in ppmv (volume to volume) is: <br /> = 271 ma benzene x 1 g_ x 1 mole benzene x 22 414 1 vapor x 1 m3 x 1 cm3 x 1,000 ml <br /> m3 1,000 mg 78 g benzene mole benzene 1W cm3 1 ml 11 <br /> = 77 9 parts benzene = 77 9 ppmv <br /> 106 parts vapor <br /> jAnd, the Benzene Extraction Rate at Startup is: <br /> W 77 9 ppmv benzene x 35.6 lb TPHg/day = 2.3 lb benzene/day <br /> 1,185 ppmv TPHg <br /> Month 1: Benzene_Emission Rate at Startup atter Abatement by Thermal Oxidizer <br />' Usingthe worst case 95% destruction efficiency achieved b the thermal oxidizer, the <br /> cY Y <br /> approximate initial benzene mass emission rate after abatement is: <br /> Benzene Mass Emission Rate from Stack = (1 - 0.95) 2.3 lb benzene/day <br /> = 0.12 lb benzene/day <br /> B-2 <br /> 1 <br />