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Geological Tectnics Inc. <br /> Project Name George's Service Borehole No. Mw-6 Page 1 of 1 <br /> Project No. 425.2 Date 4/30/97 Contractor UW Drilling <br /> ' Area & County Corner of Durham Ferry Rd and Hwy / 5an Joaquin Co <br /> ' Field Geo/Eng M. Niemi Drilling Method Hollow Stem Auger <br /> Borehole Dia. 8" Tot. Depth 22' Tot. Casing Depth 22' Casing Dia. 2" Screened Interval 22'-7' <br /> Filter Pack 22'-6' Annular Seal 6'-4' Slot Size 0.020" Grout 4'-0' Water Depth +/-7' <br /> " a ` Remarks <br /> E E - _41 1 E '4-1 U Description <br /> o� a ° z ~ w o a s o U In > OVM (PPM) <br /> ti 3 ca U n in <br /> 0 <br /> 5 <br /> 1526 iz = = ML SILT-(2.5Y5/6), slightly plastic, large 0 <br /> IS - - - roots, slightly crumbly, moist, only <br /> enough sample for geology. <br /> ' 10 - <br /> 1532 a ML SANDY SILT- fine grained, wet. 0 <br /> 5 <br /> ' 15 - - _ _ <br /> 1536 s - ML SILT-(2.5Y5/6), plastic, organic <br /> 7 material. 0 <br /> ' 20 <br /> _ 1541 s SM SILTY SAND-(2.5Y5/4), fine grained. 0 <br /> ' Some clean medium sand in upper 3" <br /> 25 <br /> ' 31 <br /> Notes SAND CLAY ® Annular Seal ® Grout <br /> ' SILT Sample Submitted to Laboratory <br />