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VAPOR RECOVERY RESULTS <br /> As of January 13, 1993 , the total system has recovered a <br /> calculated total of 16765 pounds of hydrocarbons, 3649 of which <br /> have been produced since the beginning of operations under the <br /> Authority to Construct . <br /> As of July 21, 1992, the date it was destroyed, P1 had produced <br /> 2 . 96 pounds of hydrocarbons or an additional 1 . 63 pounds since <br /> the beginning of operation under the Authority to Construct . See <br /> Table 1 . <br /> VSB5 was added to vapor extraction well P3-Swarm on 7/27/92 . The <br /> swarm in combination with VSB5 has produced, as of 02/23/93 , 750 ` <br /> pounds of hydrocarbons, an additional 388 pounds since operation <br /> under the Authority to Construct, VSB5 is currently producing <br /> 0 . 92 pounds per day, see Table 1 . On 8/26/92 , the P3-Swarm was <br /> disengaged from the vapor extraction system. <br /> Before being shut down on 7/24/92 , vapor extraction well EX <br /> produced 131 . 31 pounds of hydrocarbons, 4 . 18 pounds of which were <br /> produced under the Authority to Construct, see Table 1 . <br /> As of August 26, 1992 , MW1 had produced a total of 2534 pounds, <br /> of which 69 . 75 pounds have been produced during operations under <br /> the Authority to Construct . MW1 was shut down on 7/24/92 . <br /> As of February 23 , 1993 , MWS has produced a total of 10, 066 <br /> pounds, of which 1671 pounds have been produced during operations <br /> under the Authority to Construct . MW5 was transferred to use as <br /> a clean air injection well on 7/24/92 . On 7/27/92 , MW5 was <br /> shutdown as an air injection well . MW5 was again hooked up as a <br /> vapor extraction well on 8/03/92 . <br /> On July 27, 1992, VS33 , VSB9 and VSB11 were added to the system. <br /> As of February 23 , 1993 , these wells had produced the following <br /> amounts of gasoline : VSB3 , 20 . 05 pounds; VSB9, 1040 . 7 pounds; and <br /> VSB11, 370 .4 pounds . <br /> Monitor well, MW 3 has not been used for vapor extraction during <br /> the operations under the Authority to Construct . <br /> Currently the site is producing 11 . 55 pounds per day of TFH <br /> hydrocarbon. The current CO2 emission rate indicates that <br /> approximately 65 lb of hydrocarbon are being destroyed per day by <br /> means of in-situ biological and/or chemical oxidation. <br /> i; Bgut <br /> oe questions, please call. (916) 668--5300 . <br /> er <br /> Geologist <br /> CC : Ms . Mary Meays, San Joaquin County Health <br /> Ms . Teresa Stuyt, San Joaquin Valley Air Quality <br /> page 6 of R604 , 03/03/93 <br />