Laserfiche WebLink
r1 <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 /> IEMISSIONS RATE CALCULATIONS <br /> AT SYSTEM STARTUP, MONTH 2, AND MONTH 3 <br /> MONTH 1 STARTUP EXTRACTION RATES, AND EMISSION RATES AVIER <br /> ABATEMENT WITH A THERMAL OXIDIZER <br /> Based on the results of the vapor extraction test (RESNA, January 1993), initial petroleum <br /> hydrocarbon mass emission rates at startup of the vapor extraction system are estimated <br /> below. Startup emission rates are of primary concern, because emissions are greatest at <br /> system startup. Based on the data in Table A-5, the estimated TPHg concentration <br /> ' extracted from the soil at startup is 5,287 mg/m3; and the estimated benzene concentration <br /> extracted at startup is 271 mg/m3. The design flow for the VES for Month 1 is 75 cfm <br /> assuming only well VEW-3 is on line; and the design flow for the remaining months is 225 <br /> ' chn assuming all three wells on line. <br /> Month 1: TPHg Extraction Rate at Startup • VEW 3 On Line <br /> Converting 5,287 mg/& to parts per million by volume (ppmv); <br /> ' = <br /> 5,287 mg TPHL, x 1 g x _1.moIe TPHg x 22 414„1 vapor x 1 m3 x 1 cm3 x ugo ml <br /> m3 1,000 mg loo g 1 mole TPHg 106 cm3 1 nil 11 <br /> ' = 1,185 = L185 ppmv <br /> 106 <br /> Thus, the initial TPHg concentration at vapor extraction system startup will be <br /> approximately 1,185 ppmv. <br /> The TPHg Extraction Rate, prior to abatement is; <br /> = 1.1851 TPH¢ x 75 W x 1,440 minx A-321 air x 1 mole TPH& x 100 ¢ x 1 1b <br /> 1,000,0001 air min day i ft' 224141 vapor mole TPHg 454 g <br /> = 35 6 Ib TPH& <br /> day <br /> = 1068 lb TPHg/month <br /> B-1 <br />