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SOIL BORING LOG Boring No B-39 Sheet 2 of 8 Client Arco Station 6100 Date 2/1712004 Address 25775 Patterson Pass Road Drilling Company Gregg Drilling rig type Mobile Drill B-80 Tracy CA Driller Chris fproj,ct N❑ 116100 Method Mud Rotary hole diam 5" Logged By Scott Bittincier Sample Blow Sample wait Depth Descriptions of Materials PID Construe LITHO Type m No Count Time Recov t scale COLUMN and Conditions PPM ML CLAYEY SILT 19 5-21 light olive gray dry very stiff to hard z t z z _ ML SILT 21'-24' light brownish gray to light yellowish brown,trace clay z 3 <5%o fine grained sand dry- - ________ z a 2 5 ML SANDY SILT 24'_26' light brownish_gray_10.20%fine grained sand _ trace clay dry S 639-26 1035 2 s n/a z 7 ML SILT 26_29,grayish brown to light grayish brown 1.5%fine grained -- --------------------- ------------------------ - — - - - ---- -------- _ sand trace clay dry very stiff z a z s S 839.30 - 11 10 3 0 ML SILT with SAND 29'-33' grayish brown,5.10%fine grained sand trace n1a _ clay dry very stiff 3 1 ------------- -------------- ------------------ 3 z -------------------------------------------------------------------------------------------------- -------- 3 3 ------------------------------------------------------- — -------------------------------------------------------------------------------------------------- -------- 3 4 ML SILT 33-37_5' dray to grayish brown 1,2%fine�ralned dsand trace ax....... _-_ _ -dr---very stiff cl 3 5 3 & -------------------------------------------- --------- — ------------------------------------------------------------------------------------------------- -------- i 3 3 s ML SILT and CALICHE 37 5'-39 5 white and gray_dy hard 3 9 _ ---------------------------------- ------------------ — -------------------------------------------------------------------------------------------------- -------- 5 639-40 1220 4 0 94 Comments