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SOIL BORING LOG Boring No B-32 Sheet 5 of 10 <br /> Client Arco#6100 Date 8125/00 <br /> ss 25775 Patterson Pass Road Drilling Company Water Development Corporation ng type Dresser DW-70 <br /> Tracy CA Driller Kevin Lewis <br /> Project No D000-340-01 Method Air Rotary Casing Hammer hole diem 10" <br /> Lo ged By Scott Bittin er <br /> Sample Blow Sam leWell Depth Descriptions of Materials Pip <br /> Construe LITHO <br /> Type No Count Time R ov t Scale COLUMN and Conditions PPM <br /> 8 1 <br /> ----------------- ------------------------'---------------- -------- <br /> 920 a 2 ML SANDY SILT,light brown-20%fine sand ---------—----_--------—----------__ <br /> _ 8 3 �� ------ ---------------- -- -------- <br /> - _ SAND well graded cementation X5%fines,loose,moist <br /> 923 8 4 SW ------------------'------------------------------------------`-------- <br /> 8 5 ----—--------------------------------------------------—----------------------------------------.-------- <br /> -------------------------------------------------- <br /> — <br /> 8 6 -------- <br /> 926 8 7 SM SILTY-SAND-fiineg-rained-15.20%fines,medium dense -------------------__________ <br /> as ----- ------------------------------ ------- <br /> 940 s 9 SM SAND fine rained 10-15%fines _--------—------__--------—-----------^---------___ <br /> so ------------------------------------------------------'------------------------------------------------ <br /> --------- -'------ s -------- --------------------------------------------------------------------------------`----- ------- <br /> 9 2 SM SAND fine grained-10,15%°fines-------^___________________�_________________-^-------------- <br /> ----------------------------- <br /> 9 3 -------------- -- ------ -------- <br /> 9 4 ^----------------------`-------------------------------------------`----------------------------------- <br /> ----------------------------------------- 9 5 "-------------------------------------^----------------------------- ----- -------- -------- <br /> 950 9 6 SMIML SANDY SILT light brown,fine grained 30-35%fines diiy......._..._.....—..........__ <br /> ----------------------- ------------- ------ ---- - -- --------'------- ------------------------ <br /> 9 7 SM SILTY_SAND-moist 10%fines------------------------------------------------------------- <br /> ---------------------------- -------^----------------------------------------------------------------- ----------------------------- <br /> --------- -"---- 9 ----------------------- <br /> -------------------------------------—------------------------------'---- ------- <br /> S B32 100 1020 too SM SILTY SAND,fine rained light brown 25-30%fines d 152 <br /> Field Location of Sonng Comments Reviewed By <br /> 935 add 10'rod at 88' At 100'drillers remove to-cone bit and switch to <br /> a 5-cone open-throated bit This bit will allow samples to be taken vnthout <br /> removing the drill rods <br /> 49 <br />