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CONTENTS <br /> INTRODUCTION I <br /> SITE BACKGROUND AND ADJACENT PROPERTY 1 <br /> PREVIOUS WORK 2 <br /> Removal of Waste-Oil Tank 2 <br /> Drilling Near Former Waste-Oil Tank Cavity 2 <br /> Preliminary Tank Replacement Assessment 3 <br /> CURRENT INVESTIGATIONS 4 <br />' DRILLING AND INSTALLATION OF VAPOR-EXTRACTION WELLS 4 <br /> Soil Borings 4 <br /> Vapor-Extraction Well Construction 5 <br /> Laboratory Analyses and Results 5 <br /> VAPOR-EXTRACTION TEST 6 <br /> Results of the Vapor-Extraction Test b <br /> REMOVAL OF UNDERGROUND-STORAGE TANKS AND PRODUCT <br /> LINES b <br /> Removal of Underground Tanks 7 <br /> Sampling Soil Under the Former Product-Lines Trenches 9 <br /> Removal of Tank T9 9 <br /> Laboratory Analyses 10 <br /> Laboratory Results a 11 <br /> Installation of Conductor Casings in New Tank Cavity 12 <br /> Installation of Gasoline Tanks and Product Lines 12 <br /> SAMPLING, RESULTS AND DISPOSAL OF STOCKPILED SOIL 13 <br /> Sampling Stockpiled Soil 14 <br /> Laboratory Analyses 14 <br /> Laboratory Results 15 <br /> Authorization To Backfill Former Gasoline Tank Cavity 15 <br /> Authorization To Dispose of Stockpiled Soil lb <br /> DISCUSSION lb <br /> I CONCLUSIONS 17 <br /> ONGOING WORK/PROPOSED WORK 18 <br /> LIMITATIONS 19 <br /> I. <br /> REFERENCES CITED 20 <br /> 38048-5 <br />