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SOIL BORING LOG Boring No B-34 Sheet 5 of 7 Client Arco#6100 Date 8/31101 Ass 25775 Patterson Pass Road Drilling Company Western Strata Exploration rig type Mobile Drill B-61 Tracy,CA Dnller Gordon Jensen Project No D000-340-01 Method Mud Rata hole diam 5 5" Logged By Scott Bittin er Sample Blow sam le Weq Depth Descriptions of Materials PID Construc LITHO T e No Count Time Reaov t Scale COLUMN and Conditions PPM a1 _____ --------------- -------- $M SILTY SAND,30-50%fines moist,medium dense s 2 8 3 a 4 S B34-85 1240 a 5 --- -------`------------------- -- -------------- — -- -- ----------- ----- ---------------------- ------- - - ---- ------- 8 8 6 50% 8 7 Incomplete recovery 85'_90' ------------------------------------------------------ — ------- ------------------------------------------------------ -------- a a S 634-89 12 50 B 9 SM SILTY SAND,20%fines moist ------- ----------- ----'-------- ---- ---------- ----------------------- ------- — --- --------'------------------ - -- -- ---- ---- ----------- -^ -- -- ---'- 9 0 221 s t 50% 9 2 Incom tete recove 90-95 9 3 CALICHE,strops cementation -""--^------------------------------------"'---"' "'--_ ------------------------------------------ ML --" ------- ML SANDY SILT 15-30%fine grained sand,moist,hard S B34 94 13 06 s a -- --- ---B34- 4---------------------'3 06-------- — ---------9--N6,li ht brown--30-40%w --30-40%- nes------------------------------------------------------- ----------------------- ----^ -------- _ SILTY SAND,Ilght brown 30-44%fines moist 9 5 s 6 SILT �5%fine grained sand,moist verY_stitf-_--- 9 7 s s 273 9 9 ______---- ------------------------------- -------- S I__1334-1_00 13 151 1 loo SM SILTY SAND 50%fines 50%fine rained sand moist Comments