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1 , <br /> i I . <br /> i <br /> VAPOR RECOVERY RESULTS <br /> As of April 23 , 1993 the total system has recoverea' a calculated . ' <br /> total of 17353 pounds of hydrocarbons, 4238 of which have been <br /> produced since the beginning of operations -under thelAuthority to <br /> Construct . <br /> 3.' <br /> k As of July 21, 1.992, the date it was destroyed, P1", ha& 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 of04/15/93, 816 <br /> J. ;: <br /> pounds of hydrocarbons; an. additional 254 pounds since operation <br /> under the Authority to Construct, VSB5 is currently producing <br /> 1 . 22 pounds per day, see Table 1. On 8/26/92, the'IP3-Swarm was <br /> disengaged from the vapor:extraction system. <br /> Before being shut down on 7/24/92, vapor extraction well EX <br /> f produced 131 . 31 pounds : of hydrocarbons, 4 . 18 pounds' " which were <br /> produced under the Authority to Construct, see Tabl'e' 1 .:' <br /> f As of August 26, '1992; MW1 had produced a total of:12534 pounds, <br /> of which 69 . 75 pounds have been produced during operations under r. , <br /> the Authority to Construct . ' MW1 was shut down on 7'/24/92 . • <br /> As of April 15, 1993 , MW5 has produced a total of 1'0215 pounds, of <br /> which 1820 pounds' have. been produced during. operati,ons ;under the <br /> Authority to Construct . MW5 was transferred to use as a.: clean <br /> air injection well on 1/24/92 . On 7/27/92, .MW5 was 'shutdown as an <br /> f air -injection well . MW5 was again hooked up as a vapbr. extraction <br /> well on 8/03/92 <br /> On July 27, 1992_:, VSB31 VSB9 and. VSBIZ were . added to the system. <br /> 4 As of April 15, 1993 ; these wells had produced the'- fo.11awing <br /> amounts of gasoline : VSB3 , 32 pounds; VSB9, 1095 pounds; and <br /> I VSB11, 433 pounds. <br /> 33{ A Monitor well, MW 3 has not been used for vapor extraction- during ,; <br /> the operations under the Authority to Construct . ;! <br /> f Currently the site is producing 8 . 65 pounds per day of TFH . <br /> hydrocarbon. The current CO2 ' emission rate indicates that <br /> approximately 60 ;lb of hydrocarbon are being destroyed per. day by <br /> ? f means of in-situ biological and/or chemical oxidation. . <br /> l <br /> If you have any questions, please call (916) 668-5300 . <br /> Ro ut 1 e <br /> Geologist <br /> cc : Ms . Mary Meays, San Joaquin County Health <br /> Ms . Teresa Stuyt, . San Joaquin Valley Air Quality Y . <br /> I page 6 of R604, 04/30/93 <br />