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' Project: California Army NationalGuard Log of Soil Boring: B-12 <br /> Location: Stockton CA Project Number: 18600251.02041 <br /> Dates Drilled: 03/10/08 Borehole Name: B-12 <br /> ' Drilling Contractor: Gregg Drilling Company Logged By: T.Gere <br /> Drilling Method: Hollow-stem Auger Checked By: V.Elarth,P.G.#7120 <br /> ' Borehole Diameter: 8-inch Total Depth: 38.5 feet <br /> Comments: 30 feet West of MW-1;2 feet North end of concrete line Sampling Method: Split Spoon <br /> c Ca A <br /> o d <br /> U c <br /> F <br /> •�� a 2 3 �' v° � ••gg � a <br /> $' x t° W 5 F, LCCHOLOGY DESCRIPTION SOIL BORING DETAILS <br /> 0 <br /> Asphalt 0 <br /> P <br /> Qa;.0a:.O <br /> t Road Base black cloth liner below road base------------------------------- <br /> % <br /> Clayey Silt(ML):Minor very fine to fine sand,dark <br /> ' yellowish brown(10 YR 4/4), low plasticity,soft, <br /> damp. <br /> ' S 7 B12-5 0.0/0.0 0.1 1500 5 <br /> 13 __________________________ <br /> to Sandy Silt(ML):Minor clay,yellowish brown(10 YR <br /> ' 5/4),very fine to fine sand,non-plastic,firm,damp. <br /> ' 10 <br /> IO <br /> 12 <br /> ' 10 B12-10 0.0/0.0 0.1 1505 <br /> 10 <br /> 7.5 Cu.Ft.of Neat Cement <br /> Grout containing less than <br /> ' 5%bentonite powder <br /> 0-38.5 feet <br /> 8 Silt(ML):Minor very fine to fine and and clay,dark <br /> 10 yellowish brown(10 YR 4/4),non-plastic,firm,damp. <br /> 12 <br /> 15 B12-I5 000.0 0.0 1510 15 <br /> 1 <br /> ---------------------------------- <br /> Sand(SP) Minor silt,brown(10YR 4/3),poorly graded, <br /> ' very fine to fine grained,subangular to round,medium <br /> 20 B12-20 0.0 1515 density,moist. <br /> 20 <br /> 1 <br /> 2870 Gateway OaksIms S. 33 51e laa <br /> ' 916-67uao,D 95833 <br /> 916.679-200a <br />