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- -n� Drilling Log <br /> GROUNDWATER Monitoring Well MW-4 <br /> TECHNOLOGY <br /> Project Chevron-Tracy Owner Chevron-USA-Products_Companv See Site Map <br /> For Boring Location <br /> Location 103 west Eleventh St Trac V, CA Prol No 02070 0055 <br /> Surface Eiev Total Hole Depth 20 f, Diameter B rn COMMENTS <br /> Top of Casing Water Level Initial i0 ft Static <br /> Screen Dia 2,n Length 15 ft Type/Size 0 020 in <br /> Casing Dia —21Q Length 5 tt Type Sch 40 PVC <br /> Fill Material #3 Sand Rig/Core CME-751SDilt 52oon <br /> Drill Co SES Inc Method Hollow Stem ,duper/PID <br /> Driller Mrke Duffv Log By Bruce Beale Date 03/20/9.5 Permit <br /> Checked By Ed SIT01115 License No RG,*4422 <br /> 45-1!A- <br /> Description <br /> d o' ' ao <br /> CL— ¢gym as a U 0 v <br /> o., a a E # �o� (Color, Texture, Structure) <br /> o W a a Trace < 10%, Little 10% to 20%, Some 20% to 35%, And 35% to 50% <br /> U <br /> -z <br /> 0 Sandy silty CLAY (10,20,70) orange brown, moist to wet, no <br /> hydrocarbon odor <br /> 2 CL <br /> i 4 Mw-4 <br /> 0 -5 1 <br /> 6 = 2 <br /> CL <br /> 8 = <br /> Sandy silty CLAY (10,30,60) gray, wet, degraded hydrocarbon <br /> 10 Mw-4 odor <br /> 20 -10 3 CL Encountered Water, 0.3/20/95, 1040 hrs <br /> 4 <br /> 12 <br /> CL <br /> - 14 — Sandy Clayey SILT (10 40,50) tan brown, wet, very slight <br /> = Mw-4 2 -15 6 hydrocarbon odor <br /> 18 12 ML (grades no hydrocarbon odor) <br /> I <br /> 18 I Silty CLAY (15 85) light brawn, wet no hydrocarbon odor <br /> i Mw-4 CL <br /> 20 <br /> 0 -20 3 <br /> E 5 <br /> 5 22 End o' boring Installed groundwater monitoring well <br /> 24 <br /> Oer28ri995 hmiog-ma�93 Pace 1 C' <br />