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Geological Teeeknics Inc. <br /> ----;---%--;---- Borehole Log <br /> ,,,,,,,,,,,,, <br /> ' Project Name George's Service Borehole No. Mw-7 Page 1 of 1 <br /> Project No, 425.2 Date 4/29/97 Contractor_Vdrw Drilling <br /> ' Area & CountyCorner of Durham Ferry Rd. and Hwy / San 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 +/—y' <br /> dLn <br /> QJ 3 o Remarks <br /> Lai <br /> E .1 3 U E Description <br /> „ o, a a o ro 3 0, o a, to >, OVM (PPM) <br /> o� tiz c0 <br /> 0 <br /> 5 1451 s ML SILT—(2.5Y6/8), slightly plastic. 0 <br /> 10 --- <br /> s = CL CLAY—(10YR4/3) very hard, only 0 <br /> g =-- enough sample for geology. <br /> ' 15 -- <br /> SM SILTY SAND—(2.5Y6/4), grading to clay 0 <br /> = CL in bottom 6', hard. <br /> ' 20 <br /> 1506 3 SM SILTY SAND—(2.SY5/6), very fine to fine 0 <br /> ' grained, slight silt matrix. <br /> ' 25 <br /> ' 30 Notes: SAND CLAY ® Annular Seal ® Grout <br /> ' SILT Sample Submitted to Laborotory <br />