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E1� ' drilling Log GROUNDWATER Monitoring Well TW-2 <br /> �U TECHNOLOGY <br /> iProject Chevron/Stockton owner Chevron USA Products Co See Srte Map <br /> Location <br /> 54316ranttrne Rd Banta C.4 Prol No 02070 4894 For Boring Location <br /> Surface Eley Total Hole Depth 16 5 ft Diameter 8 In COMMENTS <br /> Top of Casing Water Level Initial 15 ft Static <br /> Screen. Dia 2 In Length 5 ft Type/Size 020 In Temporary monitoring well was abandons <br /> 10 ft e SCh 40 PVC by pulling PVC cas,ng and using trem,e <br /> Casing Dia 2 In Length Type pipe to fill open boring to grade with nea <br /> Fill Material W3 Sand Rig/Core CME-55/Spkt Spoon cement <br /> Drill Co SES Inc Method hollow Stem Auger/PILI <br /> Driller Morns Peterson Log By Bruce Be131e Date 1/5/94 Permit # <br /> Checked By Ed Slmcnrs License No RG#4422 <br /> Description " <br /> EN o s <br /> = °1 O Q a c� U U <br /> a <br /> aCU <br /> Q 3 E a s E 3 m �� in (Calor, Texture, Structure) <br /> M -moo &C CD in Trace < 10%, Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> in <br /> 0 - - <br /> , 0 0 <br /> �0o0 2' Asphalt over base course <br /> c < <br /> 2 c < <br /> < < CL (grades to dark brown silty sandy CLAY) <br /> 4 < <br /> < < $ <br /> 11 o TW-2 6 Light brown clayey SILT and very fine SAND (20,60,20) (very <br /> moist fine (<Imm) root casts, no hydrocarbon odor) <br /> < ML <br /> 8 C < <br /> 10 — 6 <br /> — o Mw-2 6 Brown to Olive brown clayey SILT (20,80) (very moist to wet, no <br /> hydrocarbon odor) <br /> 12 <br /> ML <br /> 14 - <br /> - <br /> 4 — <br /> 9 ;ncountered water, 1/5/83 1525 firs <br /> 16 C MV` 2 16 Olive brown clayey SILT and very fine SAND (15 65 20) (wet no <br /> nydrocarbon odor) <br /> Bnd of boring Installed temporary groundwater monitoring well <br /> 18 <br /> 20 <br /> 22 <br /> 24 <br /> 03/03/1884 LtNog-mart/ Page 1 of I <br />