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R V <br /> 5. The excavation will be backfilled with pea gravel and <br /> capped with asphalt. <br /> 6. Aeration will continue until TPHG concentrations are <br /> below 50 parts per million and BTER concentrations are <br /> below 10 ppm. Composite samples (4 to 1) will be <br /> collected from every 100 cubic yards of aerated soil to <br /> confirm the soil is below the cleanup goals. When soil <br /> -� reaches the cleanup goals, the soil will be incorporated <br /> In to the 5.85 undeveloped acre3 (F"gore 3). <br /> 7. A technical report will be prepared summarizing the <br /> findings of the investigation and recommending <br /> additional remedial action. if necessary. The field <br /> investigation will be conducted under the direct <br /> supervision of Russell w. 3uncal, CA Registered <br /> GerYogist No.. 3864, who will review and sign the summary <br /> report. <br /> 4.0TIME SCHEDULE <br /> Upon receiving approval to re-excavate from San Joaquin <br /> County Environmental Health. The re-excavation will begin <br /> within fifteen working days. Sample results should be <br /> available within fifte.-n days after collection. <br /> 4 � ' <br /> 4 <br /> � k <br /> 3 <br />