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HORIZON ENVIRONMENTAL INC <br /> 5011 Golden Foothill Parkway, Suite 7 _ MonitOring Well No MW-1 <br /> El Dorado Hills, California 95762 <br /> (916)939-2170 -- Fax (916}939-2172 <br /> Drilling Company Project No !Z92-12 <br /> Date Drilled 7/22103 Site ZE Auto Repair <br /> Drilling Method hollow-stern auger Location Stockton. CA <br /> Sampling Method core_b-arrel Geologist Crara Roth <br /> �, ; o Sod Description/ Well <br /> Z. L 2 c Q a 1 a Z <br /> Z c o @ E y Comments Construction <br /> CU <br /> C G <br /> CL <br /> W m C <br /> L <br /> U <br /> � C <br /> Asphalt and gravel <br /> 1 CLAY (CL) dark brown, low plasticity moist, no odor <br /> 2 <br /> neat cement <br /> 3 <br /> 4 <br /> 5 g <br /> 65 -- 18 18 0 6 SANDY CLAY(CL) dark brown low plasticity firm moist no <br /> odor <br /> 7 <br /> a <br /> 9 SANDY CLAY(CL) brown, low plastic;ty firm slightly moist, lean <br /> 10 10 — 48 48 0 10 no odor <br /> 11 2 diameter <br /> PVC casing <br /> 12 <br /> 13 <br /> 14 CLAYEY SILT (ML)with sand light grayish brown, slightly moist <br /> 15 1 18 18 0 15 low plasticity stiff, lean, no odor <br /> 16 <br /> 17 <br /> 18 <br /> 19 — 48 48 97 19 CLAY(CL} brown low plasticity, firm, lean moist, no odor <br /> 20 20 <br /> 21 <br /> 22 <br /> 23 48 48 497 23 SANDY SILT (ML) brown, very fine sand stiff, moist, odor <br /> 24 <br /> 25 25 <br /> 26 <br /> 27 — 48 48 701 27 SANDY SILT (ML) brown, very fine sand well-sorted, stiff <br /> 28 <br /> moist, no odor <br /> 1 29 <br /> 3 30 <br /> MW-1 Page _1_ of_a- <br />