2211 GIBSON PL Geotech Report 2023-04-06

• UNIFIED SOIL CLASSIFICATION SYSTEM MAJOR DIVISIONS GROUP GROUP NAME SYMBOL GRAVEL CLEAN GW WELL-GRADED GRAVEL,FINE TO COARSE GRAVEL COARSE- MORE THAN 50%OF GRAVEL GP POORLY-GRADED GRAVEL GRAINED COARSE FRACTION GRAVEL WITH GM SILTY GRAVEL SOILS RETAINED ON NO.4 SIEVE FINES GC CLAYEY GRAVEL SAND CLEAN SW WELL-GRADED SAND,FINE TO COARSE SAND MORE THAN 50% MORE THAN 50%OF SAND SP POORLY-GRADED SAND RETAINED ON THE COARSE FRACTION SAND WITH SM SILTY SAND NO.200 SIEVE PASSING NO.4 SIEVE FINES SC CLAYEY SAND FINE- SILT AND CLAY INORGANIC ML SILT GRAINED LIQUID LIMIT CL CLAY SOILS LESS THAN 50% ORGANIC OL ORGANIC SILT,ORGANIC CLAY MORE THAN 50% SILTY AND CLAY INORGANIC MH SILT OF HIGH PLASTICITY,ELASTIC SILT PASSING ON THE LIQUID LIMIT CH CLAY OF HIGH PLASTICITY,FAT CLAY NO.200 SIEVE 50%OR MORE ORGANIC OH ORGANIC SILT,ORGANIC SILT HIGHLY ORGANIC SOILS PT PEAT AND OTHER HIGHLY ORGANIC SOILS NOTES: SOIL MOISTURE MODIFIERS: 1. FIELD CLASSIFICATION IS BASED ON VISUAL EXAMINATION DRY-ABSENCE OF MOISTURE,DUSTY,DRY TO OF SOIL IN GENERAL ACCORDANCE WITH ASTM D2488-83. THE TOUCH 2. SOIL CLASSIFICATION USING LABORATORY TESTS IS BASED SLIGHTLY MOIST-TRACE MOISTURE,NOT DUSTY ON ASTM D2487-83. MOIST-DAMP,BUT NO VISIBLE WATER 3. DESCRIPTIONS OF SOIL DENSITY OR CONSISTENCY ARE VERY MOIST-VERY DAMP,MOISTURE FELT TO THE TOUCH BASED ON INTERPRETATION OF BLOW-COUNT DATA,VISUAL WET-VISIBLE FREE WATER OR SATURATED, APPEARANCE OF SOILS,AND/OR TEST DATA. USUALLY SOIL IS OBTAINED FROM BELOW WATER TABLE LIU & ASSOCIATES, INC. UNIFIED SOIL CLASSIFICATION SYSTEM Geotechnical Engineering • Engineering Geology • Earth Science PLATE 3