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E C 0 R <br /> . . <br /> TABLE OF CONTENTS � <br /> ' 1.0 INTRODUCTION.................. <br /> -~----'---'---'-'^^^--^~^^^^^^^~^^^^^^^^^^^'--'^^'--'^^~^^^^^^^^~^^^~^1 <br /> 2J0 S�E BA��KK�R��U�yNU�-.-'..~..............~.~....^.'~---------'^^^^'~^^^^^^^^~^^^~^~^~^-^~-'---'2 <br /> 2.1 Site _________~________________.________..2 <br /> � 2.2 Previous Investigations----------------------___------.2 <br /> 2.3 Sensitive Receptor Survey ----------------------'-------3 <br /> 2.4 Summary mfHistorical Remedial Feasibility Testing .----------------.4 <br /> 2/4.1 S\/E/ASSystem Operation---------------__--------..4 <br /> 3.0 GEOLOGIC AND HYDROGEOLOGUC SETTING..............................................................5 <br /> 3i1Regional Geology......................................................................................................6 <br /> 3.2 Local Geology and Hvd[ogeokzuy..............................................................................5 <br /> 4.0 PETROLEUM HYDROCARBON DISTRIBUTION .............................................................6 <br /> 4.1 Petroleum Hydrocarbons in Soi| --------------------------..6 <br /> / 4.2 Petroleum Hydrocarbons inGroundwater..................................................................8 <br /> 4.3 Dissolved Petroleum Hydrocarbon and K8tBETrends................................................7 <br /> 5.0 CURRENT SITE STATUS..................................................................................................8 <br /> 6.0 REMEDIAL ACTION PLAN ................................................................................................9 <br /> 6L1 Evaluation ofRemedial Alternatives ..........................................................................S <br /> 61.1 No Action/Monitored Natural Attenuation .......................................................8 <br /> 6.1.2 Soil Vapor Extraction......................................................................................8 <br /> 6.1.3 Groundwater Extraction and Treatment System.............................................S <br /> 6.1.4 Dual-Phase Extraction .................................................................................1O <br /> ' 8.1.5 |Ositu Biologic and/or Chemical Treatment..................................................1O <br /> 6.2 Remedial Alternative Recommendation....................................................................11 <br /> 6.3 Proposed Work Plan For ASFeasibility Testing ------------------11 <br /> 6/4 Schedule .................................................................................................................12 <br /> 7.0 LIMITATIONS..................................................................................................................13 <br /> 8.0 REFERENCES.................................................................................................................14 <br /> ' <br /> � <br /> |:43P+\RoOm4oPValley Pon*61nAp�no � <br /> � � <br /> ( | <br /> L-� <br /> - _- <br />