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r <br /> ❑❑® Drilling Log <br /> GROUNDWATER Monitoring Well MW--6 <br /> ❑❑❑ TECHNOLOGY • <br /> Chevron USA Products Co See Site Map <br /> Prosect Chevron/Benlamrn Holt - Owner For Boring Location <br /> Location ?005 W Benjamin Holt Dr - Prosect No 02320-2241 Date drilled 3/3/92 <br /> Surface Eley Total Hole Depth 315 ft Diameter COMMENTS <br /> Top of Casing Water Level Initial i8 Oft Static 17 5 ft <br /> Screen Dra _2,,I Length 20 ft Type/Size 0020,n <br /> g <br /> Casin Dia 2 in Length 10 ft Type SCh 40 PVC Filter Pack Material Lapis Lustre #21f2 Rig/Core Type Moble B-53/Split Soon <br /> Drilling Company Sierra Pacific Method ,Hollow Stem Auger _ permit # <br /> Driller Manue!Argurllo frog By Steve Kran ak <br /> Checked By Ed Simons License No RG 4422 <br /> T <br /> s` o Description <br /> L^ _2 OE moo a� U <br /> �= a a a m� V (Color, Texture, Structure) <br /> o v �x Trace < 10%, Little 10% to 20%, Some 20% to 35%, And 35% to 50% <br /> 1J <br /> - -- µ _ - _in <br /> Grass over-brown SILT with some very fine sand_ (soft, <br /> _0� moist-no-hydrocarbon odor) <br /> 2 < <br /> 4 < <br /> < ` I A 10 <br /> 10 ML <br /> 6 12 <br /> S <br /> 10 2 e iz <br /> 20 Gray silty fine SAND (medium dense very racist, hydrocarbon <br /> 50 <br /> _ odor) <br /> 12 = <br /> 14 <br /> SM <br /> g C 10 <br /> 12 <br /> 16 23 <br /> I <br /> 18 = Encountered wafer 3/3/92 (1040 hours)r <br /> Brown fine SAND (medium stiff, wet, slight hydrocarbon odor) <br /> 20 2 D 12 SP <br /> 18 <br /> 20 <br /> 22 Brown fine to coarse SAND (medium stiff, wet) <br /> SN <br /> 24 <br /> Page I of 2 <br /> ruln9n0Q7 hthlno-mar92 <br />