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HORIZON ENVIRONMENTAL INC. <br /> 5011 Golden Foothill Parkway, Suite 7 <br /> _ EI Dorado Mills California 95762 Monitoring Well No MW-2 <br /> (916) 939-2170 -- Fax (916)939-2172 <br /> Drilling Company Greaa Drilling Project No 179_2 12 <br /> Date Drilled 7/23M Site ZE Auto$epatr <br /> Drilling Method hollow stem awer Location Stockton, CA <br /> Sampling Method split-sp n Geologist Craw Roth <br /> 9 <br /> T06 <br /> 4, a <br /> z o 5 3 ; Sod Description/ Well <br /> a� a a a <br /> N z (} N a b „ Comments Construction <br /> O C 4 O U co G <br /> E FZ r A <br /> C 0. <br /> 3i neat cement <br /> 32 bentonite <br /> 33 <br /> 34 SILT(ML) reddish brown, firm low plasticity, moist no odor <br /> 35 35 -- 18 18 0 35 <br /> 36 <br /> 37 <br /> 38 — <br /> 39 <br /> 40 4Q 18 18 0 40 SILT (ML) reddish brown firm low plasticity, most #3 sand <br /> no odor <br /> Al — — — — — — — — — — — — — — — <br /> 42 <br /> 43 <br /> 44 2 diameter PVC <br /> 45 45 --- 18 18 Q 45 0 020 slot screen <br /> SILTY SAND (SM) brown fine sand, well-sorted loose to <br /> 46 medium density wet no odor <br /> 47 <br /> 48 <br /> 49 SILTY SAND (SM) brown, loose well-sorted,fine grained wet <br /> no odor <br /> so 50 ----- 1$ 18 Q 50 — <br /> SILT(ML) grayish brown low plasticity lean, stiff moist no — <br /> 51 odor <br /> 52 <br /> 53 <br /> 54SANDY SILT (ML) reddish brown, very fine sand, very moist, no <br /> 55 55 --- 18 18 Q 55 V odor -- <br /> TD = 55 <br /> 56 <br /> 57 <br /> 58 <br /> 59 <br /> s <br /> 61) <br /> MW-2 Page 2 of__2 <br />