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I GRAPHIC BORING LOG PAGE -2- OF <br /> CLIENT Unocal PROJECT NO 1232 DRILL HOLE MW-23S/D <br /> SITE LOCATION 5606 Pacific Avenue, Stockton California <br /> RILLING CO V & W Drilling TYPE OF RIG Hobart Lon ear B-81 <br /> 0 RILLING METHODIEQUIPMENT HSA HOLE DIAMETER 10" <br /> DRIVE WEIGHT/HEIGHT OF DROP 140#(830" REFERENCE OR DATUM Surface <br /> START DATE 2/20/01 COMPLETION DATE 2121101 <br /> to i y DESCRIPTION <br /> i-3 0 40. 0 <r <br /> cn W -a ° U H �Z W�F.6 <br /> -a r is $-a tia 0 W U Iii Foil-owing Order LITHOLOGY, color, gram size sorting angularity <br /> F <br /> LLH (1- W4 !X tit -iQ Ei0E- <br /> W a Of 0E r N L) o 0K H ¢ L is ¢N to fossils, consistency wetness <br /> 4iZW tX0Oi4�-4o _jw H 0t IZJa- <br /> Gift,,. WC13-Ji(40 ,a j iQ0> 3- Vol 6G 00:� <br /> 40 5 11 10 1 1 39-40 5' SILTY SAND, brown, tine sand, saturated, no odor <br /> 5 <br /> s <br /> 420 <br /> ML <br /> 45 4 11 1S 0 8 44-45 5' CLAYEY SANDY SILT, olive, very fine sand, <br /> 5 saturated, no odor <br /> 8 <br /> 12 1145 518 49-50' SILT, olive, saturated, odor <br /> so 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 ML <br /> 50 12 15 14 7 59-60' SLIGHTLY SANDY CLAYEY SILT, olive, very fine <br /> 60 @ sand, saturated, faint odor <br /> 6" <br /> 65 50 1225 2 8 64-65' SANDY SILT, olive, medium to fine sand, saturated, <br /> a no odor <br /> 6" <br /> 70 42 1 00 5 7 SM 680 69-70' VERY SILTY SAND, olive, saturated, no Odor <br /> 71 0 <br /> � 6 SP <br /> Continued Next Pa e <br /> NOTES _ <br /> 1 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 />