Laserfiche WebLink
MAJOR DIVISIONS SYMBOLS TYPICAL NAMES <br /> Well—graded grovels or gravel—sand mixtures little or no <br /> CLEAN GRAVELS GW :009P fines <br /> ' GRAVELS WITH <br /> ESS THAN 15% FINE GP 40 Poorly graded gravels or gravel—sand mixtures tittle or no <br /> w ® fines <br /> N MORE THAN 1/2 OF _ <br /> J w COARSE FRACTION> GRAVELS GM Silty grovels gravel—sand mixtures <br /> C) ej No 4 SIEVE SIZE WITH <br /> oN OVER 15% FINES GC <br /> o Clayey gravels grovel—sand—clay mixtures <br /> uA O <br /> Z N <br /> ' p CLEAN SANDS Sw Well—graded sands or gravelly sands little or no fines <br /> ,;, SANDS E55 THAN 15% FINE <br /> o SI' Poorly graded sands or gravelly sands little or no fines <br /> o MORE THAN 1/2 OF <br /> ' w COARSE FRACTION< <br /> oSANDS S M S Ity sands sand—silt m xkures <br /> No 4 SIEVE SIZE <br /> WITH <br /> OVER 15% FINES SC Clayey sands sand—clay mixtures <br /> t w ML Inorganic silts and very fine sands rock flour silty or <br /> ^r clayey fine sands or clayey silts with slight plasticity <br /> SILTS & CLAYS <br /> In w JH Inorganic clays of low to medium plasticity gravelly clays <br /> � fii sandy clays silty clays Sean clays <br /> LIQUID LIMIT 50% OR LESS <br /> o ao Organ c silts and organ c slty clays of low Plast c ty <br /> Cq <br /> z Inorganic silts mxoceous or diatomaceous fine sandy or <br /> oSILTS & CLAYSsilty soils elastic silts <br /> ,n Inorganic clays of high plasticity fat clays <br /> LIQUID LIMIT GREATER THAN 50% <br /> 0 Organic clays of medium to high plasticity organic silty <br /> c#ays organic silts <br /> HIGHLY ORGANIC SOILS PT Peat and other highly organic soils <br /> ' SYMBOLS KEY GRAIN SIZE CHART <br /> ' RANGE OF GRAIN SIZES <br /> Undisturbed Sample CLASSIFICATION <br /> U S Standard Grain Size <br /> Bulk or Classjlcotion Sample Sieve Size In Millimeters <br /> ' BOULDERS Above 12 Above 305 <br /> Simple analyzed <br /> COBBLES 12" to 3 305 to 76 2 <br /> ' First—encountered groundwater level GRAVEL 3 to No 4 76 2 to 4 75 <br /> coarse 3 to 3/4 762 to 19 1 <br /> y Static groundwater level fine 3/4 to No 4 19 1 to 4 75 <br /> tSAND No 4 to No 200 4 75 to 0 075 <br /> (10YR4/4) Munsell soil color coarse No 4 to No 10 4 75 to 2 00 <br /> 1990 edition medium No 10 to No 40 2 00 to 0 425 <br /> fine No 40 to No 200 1 0 425 to 0 075 <br /> ' SILT & CLAY Below No 200 Below 0 075 <br /> SOURCE ASTM 0 2488-90 based on Unified Soli Classification System <br /> ' Soil Classification Chart and Key to Boring Logs PLATE <br /> Harding Lawson Associates Limited Phase ll Investigation <br /> Engineering and Newark Sierra Paperboard MITI <br /> :. Environmental Services 800 West Church Street 4 <br /> = `r Stockton, California <br /> DRAWN PROJECT NUMBER—TASK APPROVIE4 DATE REVISED DATE <br /> ' YG 4034405 —` 6/98 <br />