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Boring Log HC-4 <br /> Location:Lat:47.91272976 Long:-122.2741071 Drill Equipment:Mobile B-59/Mud Rotary <br /> Approximate Ground Surface Elevation:570 Feet Hammer Type:SPT w/140 Ib.Automatic hammer <br /> Horizontal Datum:WGS84 Hole Diameter:5 inches <br /> Vertical Datum:NGVD 29 Logged By:N.Campbell Reviewed By:A.Wade <br /> STANDARD LAB <br /> PENETRATION RESISTANCE TESTS <br /> USCS Graphic Depth <br /> Class Log Soil Descriptions in Feet Sample • Blows per Foot <br /> 0 10 20 30 40 50+ <br /> SM Very dense, moist,gray,silty fine to coarse 45 S-9 50/4" <br /> SAND with fine to coarse gravel. (TILL) <br /> (cont'd) <br /> 50 S-10 36 <br /> 50/4" <br /> 55 S-11 50/4" <br /> 60 S-12 50/5" <br /> 65 S-13 50/4° <br /> 70 S-14 10 <br /> so/s" <br /> 75 <br /> m <br /> N <br /> CL <br /> O <br /> 80 S-15 50/3" <br /> x <br /> IL <br /> C7 <br /> J <br /> 0) <br /> O <br /> p <br /> O <br /> ML Hard, moist to wet,gray,SILT witOf ne to 85 <br /> 0 coarse gravel,trace fine to coarse sand. <br /> (TILL) <br /> Z <br /> m <br /> Z 90 0 20 40 60 80 100+ <br /> • Water Content in Percent <br /> A <br /> 1.Refer to Figure A-1 for explanation of descriptions and symbols. ■/�/. R"OYMO\ <br /> 2.Soil descriptions and stratum lines are interpretive and actual changes may be gradual. <br /> 3.USCS designations are based on visual manual classification(ASTM D 2488)unless otherwise 19106-01 5115 <br /> supported by laboratory testing(ASTM D 2487). Figure A-5 2/3 <br /> 4.Groundwater level,if indicated,is at time of drilling(ATD)or for date specified. Level may vary 9 <br /> with time. <br />