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Drilling Log <br /> ❑❑® GROUNDWATER Monitoring — <br /> ❑❑❑ TECHNOLOGY Well MW9 <br /> Project Lammersville School District owner Lammersville School District See Site Map <br /> Tracv, CA 02320 2124 01/24/92 For Boring Location <br /> Location Project No. Date dulled <br /> Surface Eiev 99 72 ft Total Hole Depth 20 0 ft Diameter 8 ft COMMENTS <br /> Top of Casing 9,921 ft water Level Initial 55 ft Static 754 ft <br /> Screen DIa 2 In Length 15 ft Type/Size 2 1n Wellhead and surface elevations are <br /> Casing Dia 2 in Length 5 It Type Sched 40 PVC relative <br /> Sea a do <br /> nqt relate to <br /> Filter Pack Material Laols Lustre 82/12 Rig/Core Type Moble B-63/S lit Soon <br /> Drilling Company Kvrlhauo Method Follow Stem Auaer Permit-'#'3150 <br /> Driller Mike Crocker Log By Steve Kranvak <br /> Checked By Ed Srmonis License No RG 4422 <br /> c <br /> v H <br /> E �� iD <br /> a� ;—,� o o� t� C Oescriptlon <br /> CL C.o <br /> a" 3E an Ear `IJ N (Color. Texture, Structure) <br /> o n Oct 0 in Trace C 10X, Little 10% to 20X, Some 20% to 35� Ant! 35% to 50% <br /> U N iq x , <br /> —2 <br /> 0 Grass surface <br /> Dark brown SILT with some fine sand (hard, slightly moist, <br /> 2 < ML no hydrocarbon odor) <br /> � 0 A <br /> 4 <br /> 10 Light brown silty very fine SAND (medium stiff very moist, <br /> 4 12 no hydrocarbon odor) <br /> 0 B 9 SM <br /> 5 <br /> 6 Light brown SILT (soft, wet, no hydrocarbon odor) <br /> 6 ° " Encountered groundwater at 55 feet on 01/24/92 (0930 hours) <br /> 0 C 4 <br /> 5 <br /> 6 <br /> 8 = 5 ML Static Water level at 7 54 feet on 01/29/92 <br /> D 0 8 <br /> 0 E 10 <br /> 10 — 11 Silty CLAY with sand and pebbles (medium stiff, wet, <br /> 5 no hydrocarbon odor) <br /> — 5 <br /> 8 CL <br /> 12 9 <br /> _ 7 <br /> 3 Brown fine SAND (loose, wet, no hydrocarbon odor) <br /> 14 s <br /> 5 <br /> 16 0 F 4 5P <br /> L <br /> 18 Brown SILT with some ver fine <br /> — Y sand (soft wet, <br /> no hydrocarbon odor) <br /> ML <br /> 20 = 0 G <br />. End of boring at 20 feet Constructed groundwater monitoring well <br /> 22 <br /> 24 <br /> 03/03/1992lithiog-�an92 Pace I of I <br />