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ELL <br /> ALTON GEOSCIENCE PROJECT�NO. 30-0136-01 DATE DRILLED 413/92 WAW 90 <br /> CLIENT , Former Mobil Oil Bulk Plant 04-343 <br /> LOG OF EXPLORATORY :<>A' :. <br /> LOCATION 500 E. Grantline Road Trac California BORING <br /> BORING ■ B-1 0 <br /> LOGGED BY G. Nieder-Westermann APPROVED BY— <br /> Page 1 of 2 <br /> FIELD SKETCH OF BORING LOCATION <br /> DRILLING METHOD CME-55 Hollow Stem AugerHOLE DIAM. 12° <br /> SEE FIGURE 2 SAMPLER TYPE Continuous <br /> CASING DATA h.40 PVC: 8.5' Blank,20' Screen <br /> TOP OF CASING ELEVATION 31_...26' DRILLER est Hazmat Drilling Corporation <br /> 0 o DEPTH TO WATER 12.5' <br /> E d J DATE 4!3192 <br /> 4 a C -, s L <br /> V5 rn TIME 9:15 AM <br /> Ua < a U. om DESCRIPTION <br /> 0 <br /> FILL: dry to damp, moderate yellowish brown, sandy GRAVEL; <br /> E 2 Sch. 40 6° 40 slight silt; gravel to 2" diameter. <br /> ,f. <br /> PVC <br /> 4 Casing FILL: damp to moist, moderate yellowish brown, sandy <br />!� 6 f GRAVEL; slight silt; gravel to 2" diameter. <br /> FILL: damp to moist, moderate yellowish brown, coarse- <br /> `5 8 &" diam. . grained sandy GRAVEL; slight silt; gravel to 2"diameter. <br /> 8% ND11.8 <br /> Sch. 40 <br /> i (LEL) 10 PVC medium stiff, damp to moist, light olive-gray, clayey SILT. <br /> 475 4801510 12 0.010° <br /> slotting 0 soft, saturated, light olive-gray SILT;trace fine-grained sand. <br /> ML soft, saturated, moderate yellowish brawn SILT; trace <br /> <10 14 <br /> fine-grained sand. <br /> - 16 <br /> 0 <br /> 18 zmedium stiff, wet, moderate yellowish brown,silty CLAY; <br /> trace medium-to coarse-grained sand. <br /> i 20 <br /> stiff, wet, moderate yellowish brown, silty CLAY;trace <br /> 22 CL medium-to coarse-grained sand. <br /> stiff, wet, moderate yellowish brown CLAY; trace <br />� 24 medium-to coarse-grained sand. <br /> l 26 stiff, wet, moderate yellowish brown, silty CLAY; <br /> t <br /> End Cap little medium-grained sand. <br /> 28 stiff, wet, moderate yellowish brown CLAY. <br /> 30 Boring terminated at approximately 28-112 feet below grade. <br /> i <br /> i <br /> li <br />