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LEARWATER <br /> G R'.O U P, I N C. <br /> Conduct soil vapor extraction and groundwater extraction pilot-tests--at the <br /> site'after soil and groundwater contamination have been delineated <br /> • Select an appropriate remediation method. <br /> 2.0 PROPOSED WORK <br /> Clearwater proposes to conduct the, following tasks at the subject, location <br /> during four phases of,work: . <br /> ` Phase 1: {Tasks to:be conducted concurrently} <br /> characterize and dispose of the soil currently stockpiled > <br />' Compare the cost of shoring the excavation and removing additional soil <br /> to, the,cost of leaving the soil in place and remediating it in situ (by soil <br /> vapor extraction). <br /> Phase 2: Conduct one of the following tasks after removing,vegetation <br />' from the bottom of the excavation: <br /> •' Install shoring, remove additional soil, collect samples from the bottom of <br /> the excavation, and backfill and compact the exca_vation . <br /> • Backfill and compact theexcavation. <br /> Phase 3: <br /> + Pave the:slirface.in.the vicinity of the' backfilled excavation <br /> • Drill,- sample; and-install 5 groundwater: monitoring wells <br /> i Drill and sample.4 soil borings that will be converted to soil"vapor <br /> extraction wells. <br /> -Phase 4 <br /> • ` Conduct-pilot studies to evaluate-soil and groundwater'remediation <br />.. .:� :methods. <br /> 0_105WP 7/95, 4 <br />