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Appendix A - Field Investigation <br />2001 E. Dyer Road <br />Santa Ana, California <br />GDC Project No. LA-1248A <br />Page A-4 <br />TABLE A-1: FIELD EXPLORATION SUMMARY <br />Exploration Date <br />No.Performed <br />8-1 7/27/2015 <br />B-2 7/28/2015 <br />B-3 7/29/2015 <br />B-4 7/29/2015 <br />8-5 7/29/2015 <br />8-6 7/27/2015 <br />B-7 7/27/2015 <br />8-8 4/20/2016 <br />8-9 4/20/2016 <br />8-10 4/20/2016 <br />B-11 5/4/2016 <br />B-12 5/3/2016 <br />Ground Surface <br />Elevation* <br />(feet, MSL) <br />54 <br />56 <br />54 <br />54 <br />51 <br />49 <br />50 <br />57 <br />56 <br />55 <br />51 <br />51 <br />Total Depth <br />(feet) <br />51.5 <br />51.5 <br />51.5 <br />51.5 <br />51.5 <br />51.5 <br />51.5 <br />61.5 <br />61.5 <br />61.5 <br />101.5 <br />91.5 <br />Exploration Type <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />Hollow-stem Auger <br />*Elevations taken from Google Earth <br /> GROUP DELTA