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Geological Technics Inc. <br /> Borehole Log <br /> ' Project Name George's Service Borehole No. MW—In7 Page 1 of 2 <br /> Project No. 425.2 Date 4/29/97 Contractor v&W Drilling <br /> ' Area & County Corner of Durham Ferry Rd and Hwy 33/ Son Joaquin Co <br /> Field Geo/Eng M. Niemi Drilling Method Hollow Stem Auger <br /> 12' 0-39' <br /> Borehole Dia.fl-39--50Tot. Depth 50 Tot. Casing Depth 50 Casing Dia. 2" Screened Interval 47.5-45 <br /> ' Filter Pack.50-43.5' Annular Seal 43.5-41' Slot Size 0.020 Grout 41-0' Water Depth +/-7' <br /> ' N ° 0 Remarks <br /> F ° _ ° E ° £ Description <br /> o° Eva, z° ~ w o o, � a v, >, OVM (PPM) <br /> 0 ti U 3Q Uv! 7V7 <br /> ' S <br /> 0640 3 No Core Recovery 1 <br /> ' 3 <br /> 10 - - - <br /> 0647 � — _ ML SILT—blue grey color, only a few inchs 52 <br /> — — — recovered from shoe. <br /> Strang Gasoline <br /> Odor <br /> 15 —.—,- <br /> 10703 0653 9a SM SILT—(2.5Y6/6), grading to silty sand, 150 <br /> fine to medium grained, at 16', wet at <br /> 15.5'. Gasoline Odor <br /> 20 0656 s _ _ = ML SANDY SILT—(2.SY6/6), fine grained 4 <br /> sand, black hydrocarbon staining. <br /> Gasoline Odor <br /> 25 <br /> SM SILTY SAND—(2.SY6/6), fine grained, 4 <br /> black hydrocarbon staining. <br /> Gasoline Odor <br /> 30 <br /> Notes: SAND CLAY ® Annular Seal ® Grout <br /> ' SILT Sample Submitted to Laboratory <br />