Laserfiche WebLink
' • I* k" KLEINFELDER <br /> ' TABLE OF CONTENTS <br /> ' 1 EXECUTIVE SUMMARY................................................................................................................................1 <br /> 2 SITE SETTING..................................................................................................................................................3 <br /> ' 2.1 SITE LOCATION.........................................................................................................................................3 <br /> 2.2 CURRENT SITE USE AND VICINITY CHARACTERISTICS..............................................................3 <br /> 2.3 REGIONAL GEOLOGY..............................................................................................................................3 <br /> ' 3 BACKGROUND................................................................................................................................................4 <br /> 3.1. GEOLOGIC TECHNICS INC.REPORT..................................................................................................4 <br /> ' 4 ACTIVITIES CONDUCTED..........................................................................................................................10 <br /> 4.1 SOIL EXCAVATION AND SAMPLING.................................................................................................10 <br /> 4.2 TEMPORARY WELL INSTALLATION AND SAMPLING................................................................13 <br /> 4.2.1 Workplan Preparation,Permitting and Pre-Field Activities.............................................................13 <br /> 4.2.2 Temporary Monitoring Well Installation...........................................................................................13 <br /> 4.2.3 Measurement of Water Levels............................................................................................................14 <br /> ' 4.2.4 Collection of Groundwater Samples..................................................................................................14 <br /> 4.3 SAMPLE COLLECTION AND HANDLING..........................................................................................14 <br /> 4.3.1 Soil Sample Collection........................................................................................................................14 <br /> ' 4.3.2 Sample Handling................................................................................................................................15 <br /> 4.4 TEMPORARY MONITORING WELL DESTRUCTION.....................................................................15 <br /> 5 ANALYTICAL RESULTS...................................................................................................................................16 <br /> ' 5.1 SOIL SAMPLING RESULTS....................................................................................................................16 <br /> 5.1.1 Shallow Excavation A.........................................................................................................................16 <br /> 5.1.2 Small Excavation B............................................................................................................................16 <br /> ' 5.1.3 Large Excavation C and Related Assessment Areas.........................................................................18 <br /> 5.1.4 Temporary Well Boring Soil Sampling Results.................................................................................21 <br /> 5.2 GROUNDWATER SAMPLING RESULTS.............................................................................................22 <br /> ' 6 DISCUSSION OF FINDINGS..............................................................................................................................23 <br /> 6.1 SOIL SAMPLING RESULTS....................................................................................................................23 <br /> 6.1.1 Shallow Excavation A(SE A)............................................................................................................23 <br /> ' 6.1.2 Small Excavation B(SE-A)................................................................................................................24 <br /> 61.3 Large Excavation C(LE-C)...............................................................................................................25 <br /> 6.2 GROUNDWATER SAMPLING DISCUSSION......................................................................................28 <br /> ' 6.3 POTENTIAL SOURCES OF CONTAMINATION...:.............................................................................28 <br /> 7 LIMITATIONS......................................................................................................................................................30 <br /> t <br /> 20-4341-1 LEO 1/2011 R959 Page i of ii <br /> Copyright 2001 Kleinfelder,Inc. August 21,2001 <br /> 1 <br />