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SURFACE AND SUBSURFACE CONTAMINATION REPORT <br />18201 W GRANT LINE ROAD <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 United States Geological Survey Topographic Maps .............................................. 3 <br />2.4 Interviews.......................................................................................................... 4 <br />2.4.1 User Information........................................................................................... 4 <br />2.4.2 Owner Information........................................................................................ 4 <br />3.0 PAST AND CURRENT SOURCES OF CONTAMINATION........................................................................4 <br />3.1 <br />Research Methods............................................................................................... 4 <br />3.1.1 <br />Regional Water Quality Control Board................................................................ 5 <br />3.1.2 <br />San Joaquin County Environmental Health Department ........................................ 5 <br />3.1.2 <br />San Joaquin County Community Development Department .................................... 5 <br />3.1.4 <br />San Joaquin County Agricultural Commissioner................................................... 5 <br />3.1.5 <br />Water Supply and Sewage Disposal System......................................................... 6 <br />3.1.6 <br />California Department of Conservation, CaIGEM.................................................. 6 <br />3.1.7 <br />Site Reconnaissance......................................................................................... 6 <br />3.2 <br />Past On -Site Sources of Contamination................................................................. 7 <br />3.3 <br />Current On -Site Sources of Contamination........................................................... 7 <br />3.4 <br />Past Off -Site Sources of Contamination................................................................. 7 <br />3.5 <br />Current Off -Site Sources of Contamination........................................................... 7 <br />4.0 EVALUATION OF IDENTIFIED CONTAMINATION SOURCES............................................................8 <br />5.0 CONCLUSIONS AND RECOMMENDATIONS................................................................................................8 <br />6.0 LIMITATIONS............................................................................................................................................................8 <br />7.0 QUALIFICATIONS OF ENVIRONMENTAL PROFESSIONALS...............................................................9 <br />APPENDIX A <br />Vicinity & Site Maps <br />APPENDIX B <br />Site Photographs <br />APPENDIX C <br />Historical Aerial Photographs and Topographical Map <br />Petralogix Engineering, Inc <br />26675 Bruella Road, Gait, Ca 95632 <br />(209)-40x5729 <br />www.petralogix.com <br />