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E i _ <br /> fffflz,�j woo <br /> Reeves Exxon,2360 East Rd.,Tracy,CA <br /> Site Code#1397 <br /> August 10, 1992 <br /> Page 2 <br /> backfilled. Groundwater_would be pumped-into_a_carbon rfiltration system and the <br /> "clean. water would be pumped..back-into he�wate =beanng-zone-via-an <br /> infiltration well or gallery_or�t_o}the City sewer) <br /> • Vapor extraction is generally not a viable option for soil cleanup on sites where <br /> fine grained soils are present, which is the case at this site. Likewise, though <br /> possibly effective in controlling groundwater plume migration,'conventional pump <br /> and treat techniques would not be expected to be efficient in remediating <br /> groundwater. <br /> 7n addition to the above directive, in June 17, 1992 correspondence from PHS/EHD, the Pestana <br /> Trust was asked to submit the following .information: <br /> ♦ A proposal for sampling and disposal of the stockpiled soils, and after approval <br /> of the proposal, disposal of the soils in a timely.manner; <br /> ♦ All items omitted from the "Problem Assessment Report" per "Tri-Regional <br /> Guidelines"; <br /> ♦ A quarterly report for,the first quarter 1992; <br /> ♦ A sampling schedule.(prior to June 27, 1992) with direct PHSIEHD supervision <br /> to meet second quarter°monitoring/sampling requirements; <br /> ♦ Quarterly monitoring/sampling reports by the 15th of the month following the <br /> quarter's end; <br /> ♦ A report detailing locations of all domestic, municipal and Public water supply <br /> wells within 2000 feet of the site by August 10, 1992; <br /> ♦ Verification-6f initiation of a soil stockpile maintenance" program until soil is <br /> removed from the site. <br /> In response to the above requests,. RESNA, on behalf of the Pestana Trust, has submitted the <br /> following: <br /> ♦ A proposal for sampling and disposal of stockpiled soil was submitted .to <br /> PHS/EHD in correspondence dated July 9, 1992 and approved verbally via <br /> telephone by Mr. Infu'rna on July 21, 1992; <br /> REL80792.LF <br />