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KEY TO LOG OF TEST BORING <br />Date Advanced <br />Location <br />Diameter <br />Water Table <br />Field Engineer Test Boring Number <br />Total Depth. <br />a t Sam le <br />y c T N Soil Description Laboratory Test Results <br /> yp <br /> Sand, silty, medium dense, moist, tan, (SM <br />_ Unified Soil Classification <br /> lk <br />l <br />S -- <br /> amp <br />e <br />Indicates Bu <br />Bag <br /> C 7/12 Indicates seven blows required to <br /> 5 drive the sampler twelve inches with <br /> a hammer weighing one hundred <br /> forty pounds and dropped thirty <br /> inches. <br /> Indicates Drive Sam <br />le <br /> p <br /> <br /> Indicates Sampler Type: <br /> C -Modified California Sampler <br /> St -Standard Split Spoon Sampler <br /> H -Hand Sampler <br /> BOUNCE: Indicates no further penetration <br /> occured with additional blows <br /> with the hammer <br /> 5 <br /> NR: Indicates no sample recovered <br /> CAVED: Indicates depth the lest boring <br /> caved after drilling <br /> <br /> l <br />f f <br />b <br />rt <br />di <br />t <br />th <br />ti <br /> oca <br />on o <br />ree su <br />su <br />ace <br />ca <br />es <br />e <br />In <br />- water when measured <br /> CLAY <br /> SILT NOTE: Symbols are <br /> d <br />l <br />t <br />ft <br /> en use <br />on <br />y <br />o <br />SAND o <br /> help visually identify <br /> 25 GRAVEL the described <br /> _ information presented <br /> CLAYSTONE on the log. <br /> <br />- <br />- SANDSTONE <br />Project Name Eureka Landslide <br />Project Number D04155GE <br />~~1~CT1'C.r1'El'~ BCTC~ ~1II~tFi7iE~ <br />CONSULTING GEOTECHNICAL ENGINEERS AND MATERIAL TESTING <br />Figure Al <br />