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Geo-Logic Associates BORING NO.: MW-1 OA <br /> Boring Log PAGE: 2 OF 2 <br /> JOB NO.: 2011-115 DATE STARTED: 2/22/12 GW DEPTH: 71.1 feet <br /> SITE LOCATION: CORRAL HOLLOW LANDFILL DATE FINISHED: 2/22/12 TOTAL DEPTH: 86.3 feet <br /> DRILLING METHOD: HOLLOW STEM AUGER ELEVATION: 278.95 <br /> CONTRACTOR: GREGG DRILLING NORTHING: 10971.53 <br /> LOGGED BY: J. HOWER, CEG EASTING: 10528.19 <br /> Lj o <br /> ,4 Z o o <br /> DATE PID o� �_ � 4 m L <br /> a. Q� DESCRIPTION COMMENTS <br /> U A W WZg � <br /> 2/22 11:48 2.5 <br /> SM/ ...same as above. <br /> SW - - - - - - - - - -- - - -- - - - - - - - <br /> SW Light yellowish brown (10YR 6/4), fine to <br /> medium SAND with minor SILT and trace <br /> well—rounded PEBBLE GRAVEL. <br /> 13:40 2.5 _ _ _ _ _ _ _ _ _ _ _ _ Switched to 6" O.D. auger. <br /> u SM Brownish yellow (IOYR 6/6), fine SILTY SAND <br /> with minor CLAY. Smooth drilling. <br /> 13:41 2.5 <br /> BEDROCK — CORCORAN CLAY: <br /> Yellowish brown (10YR 5/4), fine—grained <br /> 13:46 2.5 SANDY SILTSTONE with minor CLAY in the <br /> matrix. <br /> Yellowish brown (10YR 5/4), fine—grained SILTY <br /> CLAYSTONE with scattered well—rounded <br /> GRAVEL. <br /> 13:51 2.5 <br /> 13:56 75 <br /> 2.5 ...(75') —color change to mottled light olive <br /> brown (2.5Y 5/3) with iron and manganese <br /> staining. Cuttings balling up and <br /> appear very moist. Driller <br /> tags bottom and notes <br /> 14:09 2.5 water on togline. <br /> 85 � <br /> 55T <br /> 14:18 <br /> Notes: <br /> 1. Total depth of boring 86.3 feet bgs. <br /> 2. Groundwater first encountered at 86 feet <br /> bgs on 2/22/2012; static water level <br /> measureed at 71.1 feet bgs on 3/12/2012. <br /> 3. Permanent groundwater monitoring well <br /> MW-10A constructed in borehole on <br /> 3/13/2012 (see Monitoring Well Completion <br /> 95 Summary). <br /> 1 <br /> I Lj <br /> The data presented on this log is a simplification of actual conditions encountered and applies only at the location of this boring <br /> and at the time of drilling. Subsurface conditions may differ at other locations and may change with the passage of time. <br />