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SURFACE & SUBSURFACE CONTAMINATION REPORT <br /> RIVIERA ESTATES <br /> TABLE OF CONTENTS <br /> 1.0 INTRODUCTION ....................................................................................... 1 <br /> 1.1 Description of Site..................................................................................... 2 <br /> 1.2 Proposed Development............................................................................... 2 <br /> 2.0 PAST, PRESENT, AND PROPOSED FUTURE USES ............................................. 2 <br /> 2.1 Recorded Land Title Records ........................................................................ 2 <br /> 2.2 Aerial Photographs.................................................................................... 2 <br /> 2.3 USGS Topographic Maps............................................................................. 3 <br /> 2.4 Interviews.............................................................................................. 3 <br /> 3.0 PAST AND CURRENT SOURCES OF CONTAMINATION.......................................4 <br /> 3.1 Research Methods.....................................................................................4 <br /> 3.1.1 Regional Water Quality Control Board ........................................................4 <br /> 3.1.2 San Joaquin County Environmental Health Department....................................4 <br /> 3.1.3 San Joaquin County Office of Emergency Services.......................................... 5 <br /> 3.1.5 Water Supply and Sewage Disposal System ................................................. 5 <br /> 3.1.6 Department of Oil, Gas, and Geothermal Resources........................................ 5 <br /> 3.1.7 Site Reconnaissance............................................................................. 5 <br /> 3.2 Past On-Site Sources of Contamination............................................................. 6 <br /> 3.3 Current On-Site Sources of Contamination......................................................... 6 <br /> 3.4 Past Off-Site Sources of Contamination ............................................................ 6 <br /> 3.5 Current Off-Site Sources of Contamination ........................................................ 6 <br /> 4.0 EVALUATION OF IDENTIFIED CONTAMINATION SOURCES ............................... 7 <br /> 5.0 CONCLUSIONS AND RECOMMENDATIONS..................................................... 7 <br /> 6.0 LIMITATIONS........................................................................................... 7 <br /> 7.0 QUALIFICATIONS OF ENVIRONMENTAL PROFESSIONALS ................................ 8 <br /> APPENDIX A—Vicinity Maps <br /> APPENDIX B — Photographs <br /> APPENDIX C — Historical Aerial Photos and Topographical Maps <br /> APPENDIX D— Site Assessment Checklist <br /> APPENDIX E — Environmental Questionnaire and Disclosure Statement <br /> APPENDIX F — Select Local Agency Records <br /> NEIL 0 . ANDERSON <br /> AND ASSOCIATES <br /> "O�A 902 Industrial Way•Lodi, CA 95240 <br /> 02007 Neil 0. Anderson&Associates, Inc. <br />