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SOIL BORING LOG Boring No B-37 Sheet 4 of 7 Client Arco#6100 Date 9/6101 Ass 25775 Patterson Pass Road Drilling Company Western Strata Exploration rig type Mobile Dnll B-61 Tracy CA Driller Gordon Jensen Project No D000-340-01 Method Mud Rotary hole dram 5 5" Logged By Scott Bittinger Sample Blow Sample Well Depth Descriptions of Materials PID Construc LITHO Type No Count Time Recov it Scale COLUMN and Conditions PPM 6 7 ----------------------------------------------------- — ---------------------------------------------------------------------------------------------------------- _ ML SILT light brown with yellow staining trace white caliche damp 6 2 medium stiff 6 3 _ ML SILT light brown moist medium stiff 6 4 S B37-65 - 10 45 6 5 ML SANDY SILT light brown 30-40%°fine grained sand damp medium dense 218_ 6 6 -------------------------------------------- 10%° 6 7 Soil stuck in core barrel 65-70---Unable- to loq— --------------------------------------- ------ ---------------------------------------------------------- 6 s ----------------------------------------------------- — -------------------------------------------------------------------------------------------------- --------- _ Unsure of MUSM contact depth 7 0 _ SM SILTY SAND 70 74 light brown 25%fines loose damp 7 1 _ I _10--------------------------------------------- 7 2 7 3 S B37-74 1120 7 a 5-8%fi86 _ P SAND Ilght brown nes damp loose 7 5 ------------------------------------------- --------- — --------------------------------------------------------------------------------------------------I-------- 7 6 ----------------------------------------------------- -- -------------------------------------------------------------------------------------------------- -------- 5% 7 7 Soil stuck In core barrel 75'-80 Poor recovery. - ----------- -----'- - - - — - - --- --- -- ---- --- - --- -- ------ 7 8 7 9 a a ML SANDY SILT in shoe 25%fine grained sand dry hard 228 Comments