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EnviroTech Consultants, Inc. Page i <br /> Site Investigation: Sampling Report <br /> Louise Avenue Water Treatment Facility <br /> TABLE OF CONTENTS <br /> EXECUTIVESUMMARY..............................................................................................................................1 <br /> 1.0 INTRODUCTION...............................................................................................................................3 <br /> 1.1 Site Location..................................................................................................................................3 <br /> 2.0 GEOLOGY, AND HYDROGEOLOGY..............................................................................................5 <br /> 2.1 Area Geology................................................................................................................................5 <br /> 2.2 Hydrogeology................................................................................................................................5 <br /> 3.0 INITIAL SOIL SAMPLE COLLECTION............................................................................................6 <br /> 3.1 Initial Sampling (April 16, 2018)....................................................................................................6 <br /> 3.2 Initial Sampling Soil Analytical Results Summary.......................................................................12 <br /> 4.0 SECONDARY SOIL SAMPLE COLLECTION ...............................................................................13 <br /> 4.1 Secondary Sampling (September 12, 2018)...............................................................................13 <br /> 4.2 Secondary Sampling Soil Analytical Results Summary(September 12, 2018)..........................16 <br /> 5.0 EXCAVATION AND DISPOSAL....................................................................................................16 <br /> 5.1 Excavation...................................................................................................................................16 <br /> 5.2 Composite Sampling and Disposal .............................................................................................19 <br /> 6.0 CONFIRMATION SAMPLES..........................................................................................................19 <br /> 6.1 Confirmation Sampling................................................................................................................19 <br /> 6.2 Confirmation Sample Analytical Result Summary......................................................................21 <br /> 7.0 EQUIPMENT DECONTAMINATION AND RINSATE DISPOSAL.................................................22 <br /> 8.0 RECORD KEEPING .......................................................................................................................22 <br /> 9.0 RECOMMENDATIONS...................................................................................................................23 <br /> 10.0 LIMITATIONS .................................................................................................................................23 <br /> 11.0 REFERENCES................................................................................................................................24 <br /> FIGURES <br /> Figure1 —Site Location Map.....................................................................................................................4 <br /> Figure 2— LAWTF Hazardous Waste Spill Areas.....................................................................................7 <br /> Figure3—Sample Locations .....................................................................................................................8 <br /> Figure 4—Area 1 Sample Location ...........................................................................................................9 <br /> Figure 5—Area 2 Sample Location .........................................................................................................10 <br /> Figure6—Area 3 Location.......................................................................................................................11 <br /> Figure 7—Secondary Sampling Area 3 Location ..................................................................................14 <br /> Figure 8—Secondary Sampling Area 3 Location ..................................................................................15 <br /> Figure 9— Proposed Excavation Area ....................................................................................................17 <br /> Figure 10—Approximate Excavation Area.............................................................................................18 <br /> Figure 11 —Confirmation Sample Locations..........................................................................................20 <br /> 5400 Rosedale Highway 0 Bakersfield, CA 93308 0 Tel 661.377.0073 0 Fax 661.377.0074 <br />