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C\TAT <br /> A S S 4 C I A T E 5 I N C <br /> FABLE OF CONTENTS <br />' CONTENT PAGE <br />' 1.0 INTRODUCTION.........................................................................................................1 <br />' 11 Site Location 1 <br /> 12 Background 1 <br />' 2.0 SUBSURFACE CONDITIONS ............................................................................... ....2 <br />' 21 Geology 2 <br /> 22 Hydrogeology 3 <br />' 3.0 DISTRIBITION OF PETROLEUM HYDROCARBONS...........................................3 <br /> 31 Petroleum Hydrocarbons 1n Soil 3 <br /> 3 1 1 Mass Balance Calculations - Soil 4 <br /> 32 Petroleum Hydrocarbons 1n Groundwater 4 <br /> 3 2 1 Mass Balance Calculations - Groundwater 5 <br /> 4.0 WELL SURVEY ..................................................................................................... .....5 <br />' 5.0 ASTM TIER 2 RBCA EVALUATION.................................................................................6 <br /> 51 Exposure Pathway 6 <br />' 52 RBCA Model 9 <br /> 6.0 DISCUSSION..............................................................................................................11 <br /> 7.0 EVALUATION OF LOW RISK CRITERIA................... ..12 <br /> ...................................... . <br />' 71 Low R1sk Groundwater Case Evaluation 12 <br /> 72 Appendix B Checklist 14 <br /> 8.0 SUMMARY ............................................................ ....14 <br />' 9.0 REFERENCES............................................................................................................15 <br /> w 114885Veports\NFA-Requ egt doc 1 <br />