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TABLE OF CONTENTS <br /> ( Continued) <br /> SECTION PAGE <br /> 5 0 GEOPROBE DRILLING AND SAMPLE COLLECTION 12 <br /> 5 1 Geoprobe Drilling 12 <br /> 5 2 Soil Sample Collection 12 <br /> 5 3 Groundwater Sample Collection 13 <br /> 5 4 Decontamination and Disposal of Steam-Cleaning Rinsate 1 3 <br /> 5 5 Backfilling of Borings 13 <br /> 6 0 MONITORING WELL SAMPLING 13 <br /> 6 1 Monitoring Well Sampling 13 <br /> 6 2 Purge Water Disposal 14 <br /> 7 0 CPT BORING AND DOMESTIC WELL ELEVATION AND LOCATION <br /> SURVEY 14 <br /> •} 8 0 SUBSURFACE LITHOLOGY AND HYDROGEOLOGY 14 <br /> 9 0 ANALYTICAL RESULTS FOR SOIL 15 <br /> 10 0 ANALYTICAL RESULTS FOR GROUNDWATER 15 <br /> 10 1 Analytical Results from the On-Site Geoprobe Borings 15 <br /> 10 2 Analytical Results from the Off-Site CPT Borings 16 <br /> 10 3 Analytical Results from Monitoring Wells on the North <br /> Shoulder of West Yosemite Avenue 17 <br /> 11 0 MASS FLUX CALCULATIONS 18 <br /> 12 0 DISCUSSION AND CONCLUSIONS 19 <br /> 12 1 Extent of Contamination 19 <br /> 12 2 Hydrogeologic Factors Involving the Migration of <br /> Contamination 21 <br /> 12 3 Effectiveness of Groundwater Remediation 21 <br /> 12 4 Extent and Source of 1,2-DCA 21 <br />