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HORIZON ENVIRONMENTAL INC. <br /> 5011 Golden Foothill Parkway, Suite 7 Well No MW-17 <br /> EI Dorado HMIs, California 95762 <br /> (916) 939-2170 -- Fax (916) 939-2172 <br /> Drilling Company QMag Drilling Project No 147415 <br /> Date Drilled 219/04 Site <br /> Drilling Method hollow-stem auger Location Stockton. CA <br /> Sampling Method lit-spon Geologist C. Roth <br /> m aa <br /> Soil Description/ <br /> z " ` as Z Comments Well <br /> o s o o ) m ro Construction <br /> N U _ <br /> y c p <br /> 0. <br /> i 11 8'diameter <br /> bore hole <br /> 112 <br /> 113 <br /> 114 <br /> 11 115 <br /> neat cement <br /> 116 <br /> 117 <br /> 118 <br /> 2"diameter <br /> 119 PVC casing <br /> 20 120 <br /> 121 <br /> 17 122 <br /> 28 CLAYEY SILT ML with sand olive brown, very stiff, medium <br /> 123 zs 18 18 0 123 ( ) ry <br /> plasticity, moist <br /> 124 <br /> 2 125 <br /> 126- <br /> 127- <br /> 10 <br /> 2fi12710 <br /> 12 128 CLAYEY SILT (ML) brown, trace sand, very <br /> 129 15 18 18 0 129 stiff, medium plasticity, moist <br /> 3 130 bentonite <br /> 131 <br /> 132 <br /> 133 — --- — — — — — — — — — — — — -- <br /> 134 #3 sand <br /> 35 135 <br /> 22 136 <br /> 137 38 18 18 0 137 SILTY SAND (SM) gray brown,fine to medium sand, medium — <br /> dense, very moist <br /> 138 2"diameter PVC <br /> 139 <br /> 0 020"-slot screen — <br /> 4 '1140 Total Depth = 140 feet — <br /> MW-17 Page._.?__ of 2 <br />