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WATERWORK <br /> METHOD OF SOIL CLASSIFICATION <br /> MAJOR DIVISIONS SYMBOLS TYPICAL NAMES <br /> i <br /> GW %ELL GRAOEO GRAVELS OR GRAVEL-SAND HIX URM LMLE OR NO F01ES <br /> GRAVELS <br /> GP POOKV GRADED GRAVELS OR WAVEL-SAMD NIXrIAM LIrTLE OR NO FINS - <br /> .-, y" 001E THAN lA if GM SILTY[RAVELS,GRAVEL-SMS-SILT MIXTURES <br /> q CON=MACTaI> <br /> w4 Ma4umX0m <br /> E. GC CLAYEY GRAVELS.GRAVEL-SAND-CLAY MIRURPS <br /> 0 SW waL GRADED SANDS OR GRAVELY SANDS Lrm-c OR NO FOIES <br /> SANDS <br /> H SP POORLY GRADED SANDS OR GRAVELY:SANDS LITTLE OR NO rM <br /> C3 an TWA Ur OF <br /> u WORSE rNhCTKW( SM SILT! SANDS.&44O-SILr NI7XTIiiE$ <br /> HL 4 SIM SSDD <br /> .S C CLAYEY SANn um-GUY MIXTURES <br /> 0. ML IMMMANIC JILTS ANO VERY FOC SANDSr ROCK rUNM SILTT OR CLATCY <br /> J. SILTS & CLAYS r0¢ SMDS WCLAYEY SILTS VnH suaTT PLASTICITY <br /> C3 0 INORGANIC CLAYS OF LEV TO MEDIUM PLASTICITY,WAVELY CLAYS, <br /> d <br /> SANDY CLAYS,SILTY CLAYS,LEAN CLAYS <br /> V)a LLC50 <br /> L7 yT O'RGAIQCSILTS ARO ORGANIC S6.TY CLAYS OF LOM pLAST1CITY <br /> IORGANIC SILTS.MICACEOUS OR DIAT�CMS FOS SANDY OR SILTY <br /> SOILL EL 43M SILTS <br /> La SILTS B. CLAYSoINORCIMUC CLAYS Or HIGH PLASTICITY,rAT CLAYSzujLL>50 <br /> U. ORGAMC CLAYS IF NCOIIM TO HIGH PLASTICITY;ORGAMC SD_TY CLAY$ <br /> ORGANIC SILTS <br /> HIGFLY [ ZEMC SOILSPDT AND DTHER HIr,ItY oRralDc sass <br /> CLASSIFICATION CHART <br /> ( UN FLED SOIL CLAUWICATION SYSTEM ) <br /> RANGE 13F GRAIN SIZES SACS AND GRAVELS SLOVSA=T <br /> CLASSIFICATION US.STANDARD GRAIN SIZE <br /> SOLVE SIZE IN MLLDETERS <br /> VERY LOaSE 0 - 4 <br /> BOULDERS Avow Ir Alovt lY LOOSE 4 - to <br /> COBBLES W To v 303 TO 762 MEDIUM CENSE f0 - 30 <br /> DCNSE 30 - 50 <br /> GRAVEL 3' TO NIL 4 762 TO 4.76 VERY XYZE OVER So <br /> COARSE 3' 70 1/4' 76a TO l91 <br /> real 3/4' 7O Na 4 19J r0 4.76 RELATIVE DENSITY <br /> SAKI 90 4 TO NO CED 4.760 TO U74 SILTS AND CLAYS BLOVS/roaT <br /> COARSE NO, 4 TO NR 10 4760 TO L= <br /> NEDIM NI 10 TO NU 40 am TO 0.420 VEIIT SOFT 0-2 <br /> rINE NOL 40 TO M 200 DAN M W74 <br /> SOFT 2 -4 <br /> NEnnmX sTTrr • -B <br /> SILT S CLAY DELOV NM 00 1 DDLW "74 SUM 0 - li <br /> GRAIN SIZE CHART <br /> VERY srlrr Is-32 <br /> MARD AVER 32 <br /> + NUMBER Or HLOVS Or 140 POUND MANNER rALLING 30 INCHCS TO DRIVE A CONSISTENCY <br /> 2 INCM O.D. (I-We INCH SPI IT SPOON (ASTM 0-1586) <br /> PAGE OF <br />