Laserfiche WebLink
<br />I <br /> <br />UNIFIED SOIL CLASSIFICATION SYSTEM <br /> <br />I <br /> <br />Gravel <br />And <br />Gravely <br />Soil. <br /> <br /> <br />W Well-graded gravel or gravel-aand <br />mixtures, little or no fmel <br /> <br />Silts <br />And <br />Clays <br />LL < 50 <br /> <br /> <br />Dcacription <br /> <br />Major Divisions <br /> <br />rf Ite <br /> <br />Description <br /> <br />Major Divi.ioDl <br /> <br />I <br /> <br />Coarse <br />Grained <br />Soil. <br /> <br />GC C':-yey gravel, gravel-aand-clay <br />nuxturel <br /> <br />Fine <br />Grained <br />Soil. <br /> <br />Inorganic lilt and very fine sand, <br />ML rock: flour, silty or clayey fine aand <br />or clayey silt with slight plasticity <br /> <br />Inorganic clay of low to medium <br />CL plasticity. gravelly clay. sandy <br />clay.al~clay.leaRclay <br /> <br />OL Organic silt and organic silt-clay of <br />low plasticity <br /> <br />I <br /> <br />I <br /> <br />- OP Poorly-graded gravel or gravel <br />_ sand mixtures, little or no fines <br /> <br />OM Si~ty gravel, gravel-sand-silt <br />nuxtures <br /> <br />I <br /> <br />Ssnd <br />And <br />Ssndy <br />Soil. <br /> <br />.". SP Poorly-graded sand or gravelly <br />sand, little or no fines <br />'. <br /> <br />Silla <br />And <br />Clays <br />LL > 50 <br /> <br />Inorganic .ilt, micaceous or <br />diatoIl1lceoul fine or silty soil, <br />elastic .ilt <br /> <br />I <br /> <br />.,".: <br />",:::,:SW ~ell-graded sand or graveUy sand, <br />:~.~. bttle or no finea <br />'. <br /> <br />CH Inorganic clay of high plasticity. <br />rat day <br /> <br />OH Orgsnic clay of medium to high <br />pla.ueity <br /> <br />." : SM Silty sands, sand-silt mixture. <br /> <br />SC Clayey sand, sand-clay mixtures <br /> <br />Highly Organic <br />Soils <br /> <br />Peat and other highly organic <br />soil. <br /> <br />I <br /> <br />I <br /> <br /> SYMBOLS <br />[j] Standard penetration Iplit-Ipoon sample 0 Blank casing <br />III Core sample ~ Screened caling <br />rn Grab (cuttings) sample 0 Cement grout <br />y Water level observed in boring ~ Bentonite <br />SZ Stable water level in monitoring well 0 Filter pack <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />Visual Relative Moisture Content <br />Increasing Moisture Content <br /> <br />1 Dry <br />Dsmp <br />Moist <br />Wet <br />Sablrated <br /> <br />I <br /> <br />I <br /> <br />Note(I): <br /> <br />Penetration resistance valucs are recorded as tho number of blows of a 1 ~ound hammer ralling 30-inches <br />required to drive a sampler throuJh the la. 12 inchea of aD IS-inch drive. Blow count for samplCl obtained using a <br />Modified California sampler (indicated by an asterisk) should be multiplied by a factor of 0.8 to obtain equivalent <br />standard penetration resistance valuel. <br /> <br />I <br /> <br />Note(2): <br /> <br />The lines separating strata on the logs represent approximate boundaries only. No warranty ia provided as to the <br />continuity of soil strata between boringa. Logs represent the lOil section observed at the boring location on the date <br />of drilling only. <br /> <br />I <br /> <br /> <br />BORING LOG LEGEND <br /> <br />I <br /> <br />NORTHWEST, INC. <br />Consulting Engineers & Scientists <br /> <br />CONTINENTAL DAM <br />HINSDALE COUNTY, COLORADO <br /> <br />PROJECr NO. <br /> <br />DATE <br /> <br />FIGURE <br />No <br /> <br />A-I <br /> <br />7147-G <br /> <br />February 10, 1995 <br /> <br />I <br />