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SOIL BORING LOG Boring No B-36 Sheet 4 of 7 <br /> Client Arco#6100 Date 915101 <br /> ss 25775 Patterson Pass Road Drilling Company Western Strata Exploration rig type Mobile Drill B-61 <br /> Tracy CA Driller Gordon Jensen <br /> Project No D000-340-01 Method. Mud Rotary hole diam 55 <br /> Logged By Scott Bittin er <br /> Sample Blow Sample Well Depth Descriptions of Materials PID <br /> Construc LITHO <br /> Type No Count Time Recov t Scale COLUMN and Conditions PPM <br /> 6 1 <br /> 6 2 SM CEMENTED SILTY SAND light brown hard <br /> s green 20-40%fine grained sand <br /> - — ---------------3 ML SANDY SILT light brown reen staining- <br /> _ moist <br /> 6 4 <br /> — ML SILT Ilght brown with while caliche and green staining dry 428 <br /> S 1336-65 1150 s 5 <br /> ss <br /> — ML SILT light brown 5-10%fine grained sand moist <br /> s 7 <br /> 6 B <br /> 6 9 <br /> S B36-70 1155 7 D 386 <br /> 7 1 <br /> ------- ------------------------------------ --------- — ---------------------------------------------------------------------------------------------------------- <br /> 7 2 <br /> _ ML SANDY SILT light brown trace black manganese 30-40%fine grained <br /> 7 3 sand moist <br /> 7 4 <br /> S B36-75 1202 7 5 <br /> _ SM SILTY SAND light brown 40-50%fines moist 127 <br /> ---------------------------------------------------- —7s ---------------------------------------------------------------------------------------------------------- <br /> 10% 7 7 Poor recovery 75'-80 - '' --- ------------` - - --- - - --- ---- - <br /> --- 7 a CEMENTED SAND reported by driller 76'_80' <br /> -------- -------------------------------------- - — - - - - ------------------------------------` <br /> 7 9 <br /> 8 0 <br /> Comments <br />