Laserfiche WebLink
Geosyntec <br /> consultants <br /> TABLE OF CONTENTS <br /> l. INTRODUCTION................................................................................................ I <br /> 1.1 Background.................................................................................................. 1 <br /> 1.2 Regulatory Framework................................................................................2 <br /> 1.3 Previous Environmental Investigations.......................................................3 <br /> 1.4 COCs in Groundwater.................................................................................4 <br /> 2. HYDROGEOLOGIC CONCEPTUAL SITE MODEL........................................7 <br /> 2.1 RRI CSM Background.................................................................................7 <br /> 2.2 Regional Geology and Hydrogeology......................................................... 8 <br /> 2.2.1 Geologic Units................................................................................. 8 <br /> 2.2.2 Groundwater....................................................................................8 <br /> 2.2.3 Climate.............................................................................................9 <br /> 2.3 RRI Geology and Hydrogeology.................................................................9 <br /> 2.3.1 Site Setting and Topography ...........................................................9 <br /> 2.3.2 Drainage Channels...........................................................................9 <br /> 2.3.3 Sediments....................................................................................... 10 <br /> 2.3.4 Water-Bearing Zone...................................................................... 10 <br /> 2.3.5 Groundwater.................................................................................. 12 <br /> 3. EVS® MODELING OF COC DISTRIBUTION IN GROUNDWATER ......... 15 <br /> 3.1 Methodology.............................................................................................. 15 <br /> 3.1.1 Data Used for Modeling................................................................ 15 <br /> 3.1.2 EVS®Gridding Technique ........................................................... 17 <br /> 3.2 Results ....................................................................................................... 18 <br /> 3.3 Limitations................................................................................................. 18 <br /> 4. COC CONCENTRATION TREND EVALUATION........................................20 <br /> 4.1 Methodology..............................................................................................20 <br /> 4.2 Results .......................................................................................................21 <br /> 5. GROUNDWATER MONITORING PROGRAM .............................................22 <br /> 5.1 Frequency of Monitoring...........................................................................22 <br /> 5.2 Field Inspection and Depth to Water.........................................................22 <br /> RRI Groundwater Monitoring Work Plan ii 1 June 2018 <br />