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' GRAPHIC BORING LOG PAGE -2— OF 3 <br /> CLIENT Unocal PROJECT NO 1232 DRILLHOLE MW-23S/D <br /> SITE LOCATION 5606 Pacific Avenue Stockton California <br /> i <br /> RILLING CO V & W DrillingTYPE OF RIG Hobart Lon ear B-81 <br /> KILLING METHOD/EQUIPMENT HSA HOLE DIAMETER 10" <br /> DRIVE WEIGHT/HEIGHT OF DROP 140#@30 REFERENCE OR DATUM Surface <br /> START DATE 2/20/01 COMPLETION DATE 2121/01 <br /> Z <br /> ' DESCRIPTION <br /> H 9 0 I z czQ <br /> t{1odH U }a 3z W+s <br /> t— .f H 0 r�% I')F01Cwing Order-LMIOLOGY,color, grain mze Boiling angularity <br /> 4 w a s N L) o it z H¢ k Cc fossils, onsrsr taZy wetness <br /> N It t;i 43 6 W <br /> i <br /> 40 5 1110 1 1 39-40 5' SILTY SAND, brown, fine sand, saturated, no odor <br /> S <br /> ML 420 <br /> 45 s 11 15 0 8 44-45 5' CLAYEY SANDY SILT, olive, very fine sand, <br /> saturated, no odor <br /> 8 <br /> 0 12 1145 518 49-50' SILT, olive, saturated, odor <br /> 16 <br /> 22 <br /> 53 0 <br />' SM <br /> 55- 5 1200 21 6 55 0 54-55' SILTY SAND, olive, fine sand, saturated, no odor <br /> 8 f ML <br /> '12 15 14 7 59-60SLIGHTLY SANDY <br /> 60 50 CLAYEY SILT, olive, very fine <br /> 9 sand, saturated, faint odor <br /> 6 <br /> 65 50 12 25 2 8 64-65' SANDY SILT, olive, medium to fine sand, saturated, <br /> 6 no odor <br /> 6' <br /> 680 <br /> SM <br /> 70 42 1 00 5 7 69-70' VERY SILTY SAND, olive saturated no odor <br /> 61 71 0 <br /> SP <br /> Continued Next Page <br /> NOTES <br />' ENVIRONMENTAL AUDIT, INC NOTE This Boring Log Represents Conditions Only at Time and Location <br /> Indicated Subsurface Conditions May Differ at Other Locations and <br /> Times <br /> LOGGED BY BHM DATE 02/20/01 APPROVED BY BHM RG # 5649 <br />