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r HORIZON ENVIRONMENTAL INC. <br /> 5011 Golden Foothill Parkway, Suite 7 Well No MW-13 <br /> EI Dorado Hills, California 95762 <br />` (916) 939-2170 -- Fax (916) 939-2172 <br /> Drilling Company Grego Drilling Project No 1474.15 <br /> Date Drilled 2110104 Site Former Beacon 12474 <br /> Drilling Method hollow-stem auger: Location Stockton, CA <br /> Sampling Method a Jp it_sp2gn Geologist C. Roth <br /> d a <br /> ion <br /> L o ' } m_ Soil Description/ <br /> d z' m c a t Well <br /> ? r m E 2 Comments <br /> CL Construction <br /> W = <br /> � 0 <br /> 13 CLAYEY SILT(ML) brown, medium bore hole <br /> 141 21 1$ 8 0 141 to coarse sand, dense, very moist bore hole <br /> bentonite <br /> 142 2"diameter <br /> 9 PVC casing <br /> 16 143 CLAYEY SILT (ML) brown, trace — <br /> 144 26 18 18 0 144 very fine sand, stiff, very moist <br /> 14 20 145 2"diameter PVC <br /> 28 146 36 1 g 18 0 146 SILTY SAND (SM) brown, medium 0 020"-slot screen _ <br /> to coarse sand, dense, very moist <br /> 21 147 <br /> 30 SILTY SAND (SM) brown, medium to coarse sand, <br /> 148 38 18 18 0 148 dense, very moist <br /> 17 149 SILTY SAND (SM) brown, medium to coarse <br /> 28 5 150 36 18 1$ 0 15o sand, dense, very moist #3 sand <br /> 151 Total Depth = 150 feet <br /> 152 <br /> 153 <br /> 154 <br /> 155 155 <br /> 156 <br /> 157- <br /> 158- <br /> 159 <br /> 57158159 <br /> 160 160 <br /> 161 <br /> 162 <br /> 163 <br /> 164 <br /> 65 165 <br /> 166 <br /> 167 <br /> 168 <br /> 169 <br /> 7 170 <br /> MW-13 Page of <br />