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(KLE/NFELOER <br /> \\ Rright People,Right Solutions. <br /> TABLE OF CONTENTS <br /> Section Page <br /> 1 INTRODUCTION............................................................................................................1 <br /> 2 SITE BACKGROUND ......................................................................................................2 <br /> 2.1 CURRENT SITE USE..................................................................................................2 <br /> 2.2 HISTORICAL SITE USE ..............................................................................................2 <br /> 2.3 PREVIOUS INVESTIGATIONS....................................................................................2 <br /> 2.3.1 Phase I ESA..................................................................................................2 <br /> 2.4 PROPOSED FUTURE SITE USE..................................................................................3 <br /> 2.5 REGIONAL AND SITE GEOLOGY...............................................................................3 <br /> 2.6 REGIONAL AND SITE HYDROGEOLOGY ...................................................................3 <br /> 3 PROPOSED SAMPLING ACTIVITIES................................................................................4 <br /> 3.1 RATIONALE FOR SAMPLING STRATEGY...................................................................4 <br /> 3.2 PRE-FIELD ACTIVITIES..............................................................................................4 <br /> 3.3 SAMPLING LOCATIONS ...........................................................................................5 <br /> 3.3.1 Soil Sampling...............................................................................................5 <br /> 3.3.2 Groundwater Sampling...............................................................................6 <br /> 3.3.3 Boring closure .............................................................................................7 <br /> 3.3.4 Investigation-Derived Waste Sampling.......................................................8 <br /> 3.4 QUALITY ASSURANCE/QUALITY CONTROL..............................................................8 <br /> 3.4.1 Equipment Decontamination......................................................................8 <br /> 3.4.2 Field Duplicate Samples ..............................................................................8 <br /> 4 LABORATORY ANALYSIS .............................................................................................10 <br /> 5 DATA EVALUATION ....................................................................................................12 <br /> 5.1 EVALUATION OF ANALYTICAL METHODS..............................................................12 <br /> 5.2 EVALUATION OF DETECTION LIMITS.....................................................................12 <br /> 5.3 EVALUATION OF QUALIFIED DATA........................................................................12 <br /> 5.4 COMPARISON OF SITE DATA WITH BACKGROUND DATA.....................................13 <br /> 5.5 IDENTIFICATION OF COPCS...................................................................................13 <br /> 5.6 EVALUATION OF TENTATIVELY IDENTIFIED COMPOUNDS....................................13 <br /> 6 WASTE MANAGEMENT...............................................................................................14 <br /> 7 HEALTH AND SAFETY PROCEDURES ............................................................................15 <br /> 8 REPORTING ................................................................................................................16 <br /> 25001155.006A/ST0240174614 Page iii of iv November 8, 2024 <br /> ©2024 Kleinfelder www.kleinfelder.com <br />