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F[,- <br /> "NONA <br /> Working To Restore Nature <br /> Addendum One to Remedial Action Plan March 1, 1993 <br /> Coca-Cola Former Distribution Facility, Stockton, California 54006.01 <br /> I <br /> MONTH 2 EXTRACTION RATES, AND EMISSION RATES AFTER ABATEMENT BY <br /> THERMAL OXIDIZER <br /> € Month 2: TPH2 Extraction Rate - VEW 2 VEW 3 and VEW 7 On Line <br /> Assuming an average reduction in Month 2 of one-third (33.3%) of the TPHg vapor <br /> concentration, the Month 2 vapor concentration is estimated at 0.666 x 1,185 ppmv = 789 <br /> ppmv. Then, at a total flow rate of 225 cf n with three wells on line, <br /> I l The TPH Average <br /> g g Extraction Rate during Month Two, prior to abatement is: <br /> = 789 1 TPHe x 225 Fe x L440 min x 28J21 air x i mole TPH¢ x 100 g_x 1 lb <br /> 1,000,0001 air min day 1 ft' 22.4141 vapor mole TPHg 454 g <br /> I f <br /> = 71 b <br /> 1 f = Z 301b TPHg/month <br /> Month 2: TPH2 Emission Rate Aber Abatement ja Thermal Oxidizer <br /> jWith three wells on line during Month 2, assuming a worst case treatment efficiency for the <br /> thermal oxidizer of 95%: <br /> fTPHg Emission Concentration after Abatement = (1 - 0.95) x 789 ppmv <br /> = 39.5 ppmv <br /> TPHg Mass Emission Rate from Stack = (1 - 0.95) 71 lb TPHg/day <br /> ( = 3.61b TPHg/day <br /> l Month 2: Benzene Extraction Rate - VEW 2 VEW 3 and VIEW-7 On Line <br /> Similarly to the Month 2 TPHg concentration drop, assume approximately a 1/3 decrease <br /> in the benzene concentration, so that benzene concentration = 0.66 x 271 mg/m3 = 178.9 <br /> I ppmv. Then the average benzene concentration during Month 2 is: <br /> J = 178 9 mgmnzene xIg z 1 mole benzenc x 22.4141 va�r x 1 m' x 1 am' x 1,000 <br /> M3 1,000 mg 78 g benzene mole benzenc 106 cm' 1 ml 11 <br /> I <br /> B-3 <br /> J LI <br />