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4,6 G R 0 U' P, I N C. <br /> : CLEARWATER . <br />' TABLE OF CONTENTS'- <br /> 1.0 INTRODUCTION.. .............................. ...........: - . ---- .:1 <br /> 1.1 Site Description and Background........................:...... 1 <br /> 1.2 Purpose .... ' .... . . •-----. .....: ................ .1 <br /> 2.0 FIELD ACTIVITIES. : ..........:... .......................................... <br /> ••. .•. ..........2 . <br /> 2.1 Soil Borehole Drilling and Soil Sampling.......... .......:.. .... .. ......... .2- <br />' 2.2 Monitoring Well Installation.................................................................... <br /> 2.3 Monitorin Well Development, Survey, Gau Gauging Sam ling• ....33 <br />' 3.0 RESULTS "..... . ... ..:.. ....:........... :....................................................... :.:3 <br /> 3.1 Site Stratigraphy...................................................... .............. ..3 <br /> 3.2- Results of Soil Sample Analysis...:..::..::.:....:...:.....`..... • <br /> .4 <br />' '3.3 Water Bearing Zone Characteristics and GroundwaterGradient.......4 <br /> 3.4 Results of;Groundwater Sample Analysis.................... ..................... .4 <br />' 4.0 SUMMARY..:....:...............................`........... . .......:.......... ..:.....................5 <br /> 5.0 CONCLUSIONS AND RECOMMENDATIONS............. ...........:...............5 <br /> 5.1 Backfill of`Existing Tank Cavity. .................:........................... 6 <br /> 5.2. Evaluation.bf the Distribution,of Hydrocarbon Compounds..............7 <br /> 5.3 Pilot Testing........... ........................... .......... .........................................8. <br /> '6.0 CERTIFICATION .. <br /> .. .. ... . - . . . .........................................9 <br /> FIGURES - <br /> Figure 1:, Site Location Map <br /> Figure 2:, Site Plan :. <br /> Figure 3:, Groundwater Contour.Map <br /> Figure 4: Hydrocarbon Distribution Map <br /> -TABLES <br /> Table 1: -Soil Sample Analytical Results <br /> Table 2: Ground Water Elevations and,Analytical Results <br /> APPENDICES; <br /> I Appendix A: Well Installation and Groundwater. Sampling Protocols <br /> Appendix B: '. Site Safety.Plan <br /> Appendix.,C: Well Installation. Permits <br /> rSoil Boring Logs and Well Construction Diagrams <br /> 1 Appendix D. <br /> Gauging Data%Purge Calculatiom <br /> ns and Purge Data Fors. <br /> Appendix E: Laboratory Reports-and Chain-of-Custody Records <br />