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SOIL BORING LOC', Boring No B-37 Shoot 3 of 7 Client Arco#6100 Date 916101 Address 25775 Patterson Pass Road Drilling Company Western Strata Exploration rig type Mobile Drill B-61 Tracy,CA Driller Gordon Jensen Protect No D000-340-01 Method Mud Rotary hole diam 5 5' Logged By Scott Bitten er Sample Blow Sample Well Depth Descriptions of Materials PID "'"cLITHO Type No Count Time Recov t Scale COLUMN and Conditions PPM 4 1 ML SILT light brown 3-5%fine grained sand moist a z 4 3 a 4 ML SILT fight brown with white caliche and_yellow stairnnR_dry hard 40% _ a s 560 a s a 7 ML SANDY SILT light brown,25-40%fine grained sand,moist ---------------------------------------------------` — -------------------- --------------- - -------------------- -------- 5 637-48 1005 4 8 392 _ incomplete recovery 45'-50' 4 9 5 0 s t SILTY SAND light brown 40%fines moist --------------------------------------------------- — -'-- -- --- - --- -- -------------------------------------------------- ------- 5 2 SILT,h ht brown trace white caliche moist 5 3 s 4 SP SAND fine grained,<5%o-fines, poorlyraded_moist ---------------------------------------------------- — -- - ------------------------------- -------- 5 637-55 1.015 5 5 189 15% s 6 SW SAND,fine to coarse gralned,-mostly fine grained-sand wet 476 5 7 -- 5 e ML SILT ji ht brawn moist -- -- --- ---- -------- -------- — --------- ------------------------------------------------------------------------------------ -------- 5 s ---------------------------------------------------- — ----------------------------------------------------------n------------------------------------------------- -6 ---------- -------- _ L SILT yellow brown with white caliche 2---5--%--- grained sand,moist 60 Comments •