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01/25/96 15:23 $ 209 333 6309 KEN PAIGE P.05 <br />1 <br />3.3 <br />Soil.lgenerated during a cavation will. be stockpiled on vi.squcne on- <br />site; and covered witle isquene. Soil., from non -source areas, will <br />be used to berm the si es of the stockpile, and visquene will be <br />arranged to minimize an run-off. This formation will be designed <br />to protect susceptib a storm drains, if inclement weather. <br />interrupts field activi�ti.es. <br />Chevron proposes re -use <br />contamination encounte <br />excavation based on v: <br />(discrete samples collei <br />soil. is below 100 ppm a <br />will'be considered acce <br />for Ze--use. <br />Soil generated by exc <br />segregated. Discret< <br />approximately every. 25 <br />samples will. be comp <br />characterize every 1.00 <br />disposal (analytical re <br />will be transported t <br />landfill. facility. cic <br />the purpose of backfill <br />of some soil., depending upon'the levels of <br />.ed. Soil will. be segregated during <br />sual inspection. If analytical results <br />ted for every 25 cubic yards) indicate that <br />111 -gas and 0.005 ppm benzene then the soil <br />)table for backfi l.l. and stockpiled on-site <br />avating potential <br />vourc:o areas will be <br />soil samples will be collected for <br />cubic yards, and <br />sets of four discrete <br />sited into one <br />at the laboratory to <br />cubic yards. Stockpiled soil slated for <br />ults above 100 ppm <br />TPH-gas, 0.005 benzene) <br />Browning Ferris <br />Industries Vasco Road <br />in import will be <br />}sought to the site for <br />ng excavations. <br />Soil stockpile samplesi.11 be collected by removing the top 6 to <br />1?. iltches of soil in e ch stockpile, then pushing a sample tube <br />into the soil until c pletely full. Samples will be sealed, <br />labeled, recorded on a pain -of -Custody form and transported in a <br />cooler with ice to the aboratory. <br />ETA <br />At the completion of alfield activities, a comprehensive report <br />will be prepared for the Regional water. quality Control. Board and <br />San Joaquin County. 'he report will. Include the results of <br />verification soil. sampling, res well as. a summary of field <br />activities, explor.atorl% boring logs, and chemical analytical <br />reports. The r.eport'witl be prepared under the supervision of a <br />California Registered Ggologist. <br />On-site field acti.vitie. are expected to commence on February 1, <br />1996, and continue after the acceptance of this work plan. Tank <br />removal., excavation Work, and soil. disposal are expected to be <br />complete in a one month period, weather permitting. <br />A comprehensive report )f activities w.i.1.1 be submitted. 45 days <br />after* completion of fieRd activities. A milestone schedule is <br />3 <br />