J_2024 05 09_West Orange Stormwater Management Plan

LETTER TYPICAL MAJOR DIVISIONS SYMBOL DESCRIPTIONS CLEAN Well-graded gravels, gravel- GRAVEL & GRAVELS cw fe es Be ees GRAVELLY SOILS (Little or no fines) CG Poorly-graded gravels, gravel- iP sand mixtures, little or no fines More than 50% of GRAVELS WITH a Silty gravels, gravel-sand-silt coarse fraction iM mixtures. COARSE RETAINED one 4h FINES GRAINED (Appreciable amount Clayey_ gravels, gravel-sand- SOILS of fines) GC clay mixtures. CLEAN SAND Well graded sands, gravelly SAND AND sw sands, little or no fines. More than 50% SANDY SOILS (Little or no fines) Poorly-graded sands, gravelly of material SP sands, little or no fines. is LARGER than No, 200 Sieve More than 50% of SANDS WITH Silty sands, sand-silt mixtures coarse fraction FINES SM PASSING a No. 4 Sieve (Appreciable amount Clayey sands, sand-clay of fines) sc mixtures. Inorganic silts and very fine ML sands, rock flour, silty or clayey fine sands or clayey silts with slight plasticity, FINE GRAINED | SILTS AND CLAYS Liquid limit Inorganic clays of low to SOILS LESS than 50 cL medium plasticity, gravelly clays, sandy clays, silty clays, Jean clays. Organic silts and organic silty More than 50% of OL clays of low plasticity, material is SMALLER than No. Tnorganic silts, micaceous or 200 Sieve. MH diatomaceous fine sand or silty Liquid limit soils. ILT: LAYS GREATER Inorganic clays of high SILTS.ANDG than 50 CH plasticity, fat clays. ‘Organic clays of medium to OH high plasticity, organic silts. HIGHLY ORGANIC SOILS PT Peat, humus, swamp soils with high organic contents NOTE: DUAL SYMBOLS ARE USED TO INDICATE BORDERLINE SOIL CLASSIFICATIONS. GRADATION* COMPACTNESS* CONSISTENCY* sand and/or gravel clay and/or silt Range of Shearing Strength in % Finer by Weight Relative Density Pounds per Square Foot Trace 0% to 10% Loose 0% 10 40% Very Soft Tess than 250, Little 10% t0 20% Medium Dense 40% to 70% Soft 250 to $00 Some 20% to 35% Dense 70% t0 90% Medium 500t0 1000 ‘And 35% to 50% Very Dense 90% to 100% ‘Stiff 1000 to 2000 Very Stiff 2000 to 4000 Hard Greater than 4000 *Values are from laboratory or field test data, where applicable. When no testing was performed, values are estimated. UNIFIED SOIL CLASSIFICATION SYSTEM SOIL CLASSIFICATION CHART PLATE 5