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UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS LTR DESCRFrnDN MAJOR DIVISIONS LTR DESCRIPTION <br /> GAN Wait-graded gravels or gravel sand Inorganic silts and vary fine sands, <br /> mixtures, little or no fines ML rock floor may or clayey fine sands <br /> or clayey sifts wdh slight plasticity <br /> ' <br /> GRAVEL GP Poorly-graded gravels or gravel <br /> sand mixture little or no fines SILTS Inorganic clays of low to medium <br /> AND AND CL plasticity gravelly clays sandy days <br /> GRAVELLY CLAYS „fty days lean clays <br /> SOILS GM Sihy gravels gravel sand-clay LL�50 <br /> mixtures <br /> ' O:a Clayey gravels gravel-sand-day OLOrganic silts and organic sihclays <br /> COARSE mixtures of low plaa0city <br /> FAVE <br /> GRAINED <br /> SOILS ED <br /> LS inoSW Wall-graded sands or grarelly � M4 datcmaloecus fine sandy or r <br /> orsdty <br /> sands lithe or no fines sods siaslie sifts <br /> SILTS <br /> SP Poort"raded sands or gravelly AND CH Inorganic days of high plasticity <br /> SAND sands little or no fires CLAYS fat clays <br /> ' L1.>50 <br /> S"Y <br /> SOILS SM Sifty sands sand silt mixtums CH Organic days at medium to high <br /> plasticity <br /> ' SC Clayey sands sand day mixtures HGHLY Op Poet and other highly organic sods <br /> ORGANIC SOILS t <br /> ® Disturbed Bag or Bulk Sample Blank casing <br /> Standard penetration spit spoon sample L-.j Screened casing <br /> ' Modified California Sampler (Porter) ® Cement grout <br /> I Shelby tube sample <br /> ® Bentonste <br /> Water level observed in boring <br /> No recovery F1 <br /> Sand pack or gravel pack <br /> ' NFWE No free water encountered I Surface conductor casing <br /> NOSC No odor, scent, or fluid cut <br /> ' NOTE Blow count represents the number of blows FID Photoiontzation detector <br /> of a 140-pound hammer falling 30 inches per PPMV Parts per million volume <br /> blow required to drive a sampler through the <br /> ' last 12 inches of an 18-inch penetration NR No response (PID) <br /> NOTE The lines separating strata on the logs PID Calibrated with 100 ppm <br /> represent approximate boundaries only isobutylene <br /> The actual transition may be gradual <br /> No warranty is provided as to the continuity <br /> of soil strata between borings Logs <br /> ' represent the soil section observed at <br /> the boring location on the date of drilling <br /> only <br /> ' BORING LOG LEGEND PLATE <br /> KLEI NFELDER <br /> � JORDAN REAL ESTATES 4 <br /> PROJECTNO 24-1132-20 TRACY, CALIFORNIA <br /> ' M-12A <br />