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SOIL BORING LOG Boring No B-32 Sheet 5 of 10 <br /> Client Arco#6100 Date 8125100 <br /> ss 25775 Patterson Pass Road Drilling Company Water Development Corporation rig type Dresser DW-70 <br /> Tracy CA Driller Kevin Lewis <br /> Protect No D000-340-01 Method Air Rotary Casing Hammer hole dram 10" <br /> Logged By Scott Blttmger _ – —_-- <br /> ample Blow sam to well Depth Descriptions of Materials PID <br /> Cons <br /> truc LITHO <br /> Type No Count Time Recov t Scale COLUMN and Conditions PPM <br /> --------------------------------------------------------- & 1 <br /> ------------------- <br /> 920 -------- s 2 ML SANDY SILT light brown-20%fine sand -- <br /> _ SAND well graded cementation <5%fines loose moist <br /> 923 B 4 SW <br /> e s <br /> B 6 <br /> ------------------ 926 - e 7 SM SILTY-SAND--fine-grained 15-20%fines medium dense <br /> Be <br /> ----------------------------- ---940 a 9 SM SAND fine gra-tried-_1 0-15%fines <br /> 9 0 <br /> 3 <br /> s 2 SM SAND fine grained 10-15%fines <br /> --------------------- -- `--------- -------- — ----- ----------^------- --- -- --- ------------------------------------------ ------- <br /> 9 3 <br /> 9 4 <br /> 9 5 <br /> 950 9 6 SM/ML SANDY SILT light brown fine cirained 30.35%"fines <br /> 9 7 SM SILTY SAN❑ moist 10%fines <br /> 9 8 <br /> 9 9 <br /> S 1832--l-00- <br /> 1 1 10201 100 SM SILTY SAND fine grained light brown 25-30%fines da 152 <br /> Field Locabon of Boring Comments Reviewed By <br /> 935 add 10'rod at 88' At 100'drillers remove tri-cone bit and switch to <br /> a 5-cone open-throated bit This bit will allow samples to be taken without <br /> removing the dell rods <br />