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28 321/cf = 0 000000o621lb/cf <br /> The volume of air produced in one day, equals the flow rate (Q) x <br /> the time of flow. <br /> V <br /> = Q x T = cf/day = cf/min x 1440 min/day <br /> The volume must be corrected to standard temperature and pressure <br /> (STP) <br /> P = Pressure = 14 7 lb/int @ STP <br /> V = Volume cf <br /> T = Temperature in degrees above absolute Zero = 491 58oR @ STP <br /> Using the Ideal Gas Law P1V1/T1 = P2V2/T2 <br /> Solving for V2 =P1V1T2/P2T1 <br /> Assuming P1. = P2 = 14 7 lb/in2, P cancels from the equation <br /> leaving V2 = V1T2/Tl <br /> V1 = Q cf/m x 1440 min/day <br /> T2 = 491 58oR Ti = 459 58 + TOP at site <br /> V2 = Q cf/min x 1440 min/day x 491 58oR/ (459 580 + TOP) <br /> X lb/day = C ug/l x 0 0000000621 lb 1/ug cf x Q cf/min x 1440 <br /> min/day x 491 . 58oR/ (459 . 580 + TOP) <br /> Q for the Influent sample = The well flow rate + the air flow <br /> S LTMMARY <br /> There has been no evidence of floating product or product sheen <br /> on the ground water in MWI since April 14 , 1992 and MW3 and MW10 <br /> since November 11, 1992 The last evidence of product, as a <br /> sheen in the condensate recovery system, was on March 1 , 1993 <br /> Vapor recovery has reduced the hydrocarbons in ground water <br /> significantly since the May 25, 1990 sampling, see Table 1 . <br /> On September 26 , 1995 a sample of the water being treated by air <br /> stripping inside the "ConVault" was obtained for certified <br /> laboratory analysis This was accomplished to prove the <br /> suitability for dumping this cleaned water to the City of <br /> Stockton' s sanitary sewer This water (700 gallons) was <br /> discharged to sewer on October 11 1995 Rlnr'P th,4t- i- imo +-para <br /> has been no additional discharge to sewer ----f v .� ~� y y1-- <br /> Bio-venting of MW8 was initiated on October 26, 1994 Sample <br /> results obtained of the ground water at and near MW8 suggests <br /> that this weekly venting is beneficial in controlling the <br /> migration of the gasoline hyrocarbon plume <br /> As of December 19, 1995 an estimated 12045 6 gallons of gasoline <br /> range hydrocarbons have been removed from the soil and ground <br /> water beneath this site The 12045 6 gallons consists of <br /> PAGE 5 R603 UPDATE-42 1/11/96 <br />