ARCHIVED REPORTS_XR0007087 - Laserfiche WebLink

Home Browse Search

Unified Soil Classification System Well graded gravels or gravel sand mixtures GW little or no fines ' GP I'oorfy graded gravels or gravel sand mixtures m Gravels little or no fines (More dean half of coarse fracton> �- GM Sandy gravels gravel-sand-sift mixtures rp N no 4 sieve size) �z GC Clayey gravels, gravel-sand-silt matures cA ' R ^f w ^ 0-6 .. .. .. SW Well graded sands or gravelly sands, little or no fines 07 s o r Sands NY SP Poorly graded sands or gravelly sands, little or no fines ' V m (Mone than half of o coarse fraction< E no 4 sieve sae) i t i t SM Silty sands, sand-silt mixtures 1 ' -- SC inorganic silts and very fine sands, rock flour, silty _ or clayey fine sands or clayey sifts with slight plasticity Inorganic silts and very fine sands,rock flour, silty ML- fine sands or clayey sifts with slight plasticity iSilts and Clays CL Inorganic clays of low to medium plasticity, gravelly r-2 LL a 50 clays, sandy clays, lean days vQ in a � V OL Organic sifts and organic silty clays of Eow plasticity c51 oInorganic silts, micaceous or diatomaceous fine sandy MH or silty soils, eleasttc silts ' mL Silts and Clays LL=> 50 CH Inorganic sifts of high plasticity,tat days m ' o pH Organic days of high plasticity,organic silty clays, ..... organic sifts Highly Organic Sails Pt Feat and other highly organic soils Crain Size Chart Sample Designation ' Range of Grain Sizes Classification US Standard Galn Size Drive Sample Interval 5eive Size In Millimeters Boulders Above 12' Above 305 Continuous We Cobbles 12"to 3" 305 to 76 2 Sample Interval ' Gravel 3"to No 4 76 2 to 7 76 coarse T 103W 76210476 fine 3W10No4 19110476 First Encountered Water (during drilling) Sand No 4 to No 200 4 76 to 0 074 coarse No 4 a No 10 4 7610 2.00 medium No 1010 No 40 200100420 Stabilized Water Elevation (711191) Tine No 4010 No 200 0 42D 100974 - Silt and Clay Below No 200 Below 0 074 SRCOR