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BORING NO, <br /> - ALTON GEOSCIENCE, Inc. PROJECT NO. 30-136.01 DATE DRILLED4-30.91 B-2 <br /> LOG OF EXPLORATORY CLIENT Mobil Oil Corporation-- WELL NO <br /> BORING LOCATION 500 E.Grantline Road Ca. <br /> LOGGED BY C.Ladd APPROVED BY <br /> AW-6 <br /> FIELD SKETCH OF 13ORING LOCATION Page 1 of 1 <br /> DRILLING METHOD CME 75 HSA HOLE DIAM. 8' <br /> See attached. SAMPLER TYPE Modified split spoon <br /> CASING DATA 2"Sch.40 PVC,0.010"slot,5'solid,20' erf. <br /> I ' TOP U:CASING ELEVATION 29.59' DRILLER West Hazmat Drilling Corporation <br /> _ z WATER LEVEL. 9.00' 10.37' <br /> d r e W 11 LU DATE 4-30.91 5-7-91 <br /> O a. of LL TIME 10:00 12:55 <br /> t� w Ed S d S DESCRIPTION <br /> Christy Box <br /> 0 4"As haft <br /> 2 2' SILTY CLAY:dark brown, moist,firm,medium plasticity,with asphalt and fill <br /> _ material. <br /> 4 Sch.40 <br /> PVC CL <br /> .010" Same,becomes brown,high plasticity. <br /> 5,8,8 6 slot <br /> Same,becomes dark brown,trace gravels-i/2'. <br /> 8 <br /> - g---- - -- ---- - -- - ------ ---------- - ------- ------- <br /> 10 p <br /> 12 ' rp GRAVELLY SAND:brown,wet,medium,dense,medium to coarse grained sand, <br /> subrounded gravels-•112'. <br /> 14 2' - --- ---------- - -- --- - -------------- -- ----- <br /> Sch.40 <br /> 16,12, i6 PVC ';, <br /> 14 010" SAND:brown,saturated,medium dense,fine to medium grained sand. <br /> 18 scot <br /> 20 S P <br /> 9,13, Same,becomes wet. No recovery. ' <br /> 24 End Cap.,.'• r, "''." .---- - ----'- ------------ ---- <br /> 7,12 26 CL SILTY CLAY:brown,moist,stiff,high plasticity. <br /> 12 <br /> BORING TERMNATED AT 26.5 FEET BELOW GRADE <br /> 28 <br /> 30 Portland Cement <br /> ® Sample Stabilized water level <br /> 32 '_ Sand#2 Lonestaz <br /> m Driven interval Water level encountered during drilling <br /> 34 Bentonite Pellets <br />