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t r ,kT I 1117 Lone Palm Avenue, Suite 201 B <br /> Modesto,CA 95351 <br /> FA C Telephone 209-579-2221 <br /> IV <br /> Fax 209-579-2225 <br /> ENVIRONMENTAL • GEOTECNNICAL www.atcgroupservices.com <br /> BUILDING SCIENCES • MATERIALS TESTING <br /> TABLE OF CONTENTS <br /> 1.0 INTRODUCTION ...................................................................................................................1 <br /> 2.0 SITE HISTORY......................................................................................................................2 <br /> 2.1 SITE DESCRIPTION .............................................................................................................2 <br /> 2.2 PREVIOUS INVESTIGATIONS .............................................................................................2 <br /> 2.3 SITE REMEDIATION.............................................................................................................4 <br /> 2.4 SENSITIVE RECEPTORS.....................................................................................................5 <br /> 3.0 PROPOSED SCOPE OF WORK...........................................................................................7 <br /> 4.0 CONCLUSIONS ..................................................................................................................10 <br /> 5.0 LIMITATIONS......................................................................................................................11 <br /> LIST OF FIGURES <br /> Figure 1 Site Location Map <br /> Figure 2 Site Plan <br /> Figure 3 Dissolved Phase TPHg Deep Zone Isoconcentration Map <br /> Figure 4 Air Sparge Wellhead Details <br /> Figure 5 Vapor Extraction Wellhead Details <br /> Figure 6 Miscellaneous Features <br /> Figure 7 Remediation Compound Layout <br /> Figure 8 Air Sparge Manifold Details <br /> Figure 9 Vapor Extraction Manifold Details <br /> Figure 10 Aeration Line/Vapor Extraction Process and Instrumentation Diagram <br /> LIST OF TABLES <br /> Table 1 Well Construction Details <br /> LIST OF APPENDICES <br /> Appendix A Regulatory Correspondence <br /> Appendix B Field Procedures <br />