ARCHIVED REPORTS XR0006429 - Laserfiche WebLink

Home Browse Search

UNIFIED SOIL CLASSIFICATION SYSTEM S EM - VISUAL CLASSIFICATION OF SOILS (ASTM D-2488) MAJOR GROUP GROUP NAME DESCRIPTION DIVISIONS SYMBOL ' a0a0 e a �o Well graded gravel 00aP0" GW Well graded gravel with sand Well graded gravels or gravel-sand a a e o a mixtures little or no hues a a s a a GRAVEL -O-o-O-o- Poorly-graded grave] poorly-graded gravels or gravel ri P Poorly graded gravel With sand AND :0.0.0 0. sand mixture little or no fines GRAVELLY `p`p`p`p` 10.10•¢.¢. GM Silty gravel Silty gravels gravel sand silt SOILS Silty gravel with sand '¢10'010' mixtures Clayey gravel Clayey gravels gravel-sand-clay COARSE C* Clayey gravel with sand mixtur GRAINED SOILS SW Well-graded sand Well-graded sands or gravelly Well graded sand with gravel sands little or no fines SAND S P Poorly graded sand Poorly-graded sands or gravelly AND Poorly graded sand with gravel sands little or no fines SANDY \+++\\\++♦ \\\111'1\• SM Silty sand SOILS Silty sand with gravel • \ + \ + Silty sands sand-silt mixtures \ + • + \ fffff f f f f f S C Clayey sand Clayey sands sand-clay mixtures f f f f f Clayey sand with gravel \1\11\1•\• Silt Silt with sand Silt with grave! Inorganic silts and very fine SILTS \\\11.11+• M L Sandy silt Sandy silt with gravel sands rock flour silty or Gravelly silt Gravelly Silt with sand clayey fine sands or clavev AND silts with sh ht plasticiry Lean day Lean clay with sand Lean clay with gravel Inorgaruc clays of low to medium FINE C CLAYSL Sandy lean clay Sandy lean clay with gravel plasticity gravelly days sandy Gravelly lean day Gravelly lean clay with sand clays silty clays lean days GRAINED SOILS ELASTIC \11.11\•\• Elastic silt Elastic silt with sand Elastic Silt with grave Inorganic silts micaceous or •\\+\\\+++ ++\•+\\+\+ MH YJ Sandy elastic silt Sandy elastic silt with gravel diatamaceous fine sandy or silty F Graven elastic silt Gravelly elastic silt with sand SILTS +++\••\+•• Y Y SoilS elastic silts AND Fat clay Fat clay with sand Fat clay with gravel CH Sandy fat clay Sandy fat clay with gravel Inorganic clays of high plasticity CLAYS Gravelly fat clay Gravelly fat clay with sand fat clays Organic soil Organic soil with sand Organic soil with gravel Organic silts and organic silt OL/OH Sandy orgaruc soil Sandy organic sod with gravel clays of low plasticity Gravelly orgaruc soil Gravelly organic soil with sand Organic days of medium to high HIGHLY plasticity ORGANIC SOILS I't peat Peat and other highly organic SOUS WELL CONSTRUCTION EXPLANTION SOIL BORING NOTES SANDS &GRAVELS BLOWS/FT SILTS & CLAYS BLOWS/FT Blank well casing Blow count represents the number of blows of a Neat cement or 140-lb hammer falling 30 inches per blow required VERY LOOSE 0 5 SOFT 0 5 to drive a sampler through the last 12 inches of an sand slurry seal LOOSE 5 22 FIRM 5 - 10 18-inch penetration. Bentorute sealMED DENSE 12 37 STIFF 10 - 24 Na warranty is provided as to the continuity of soil strata between borings Logs rep-esent DENSE 37 62 VERY STIFF 20 - 40 the soil section observed at the baring location VERY DENSE OVER 62HARD OVER 40 Well sandpack on the date of drilling only S=Sampler sank into medium under the weight of the hammer(no blow count) = Approximate stabilized water level Well screen P=Sampler was pushed into medium by drilling rig — (no blow count) 4 Approximate first encountered water level \'R - No Recovery = CLEARWATER GROUP, INC. SOIL BORING AND APPENDIX A 1125 Atlantic Avenue, Ste 102 Alameda, California 94501 WELL CONSTRUCTION PLATE Phone 510-337-8730 A-1 Fax 510-523-0984 LOG LEGEND