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Geological Telhnics Inc. <br /> Borehole Log "sss"s"s;ss"ss;ss;ss;ss;s <br /> Project Name George's Service Borehole No. MW-7 Page 1 of 1 <br /> Project No, 425.2 Date 4/29/97 Contractor v&W Drilling <br /> ' Area & County Corner of Durham Ferry Rd and Hwy 33/ San Joaquin Co <br /> Field Geo/EngM. Niemi Drilling Method Hollow Stem Auger <br /> Borehole Dia. 8" Tot. Depth 22' Tot. Casing Depth 22' Casing Din. 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 /> ' CJ c o <br /> a� a E o �—° a 3 N Description OVM m <br /> Q) rn z 3 n° u n (PPM) <br /> ' 0 <br /> ' 5 --- <br /> 1451 s --- ML SILT—(2.5Y6/8), slightly plastic. 0 <br /> ' 10 <br /> e CL CLAY—(10YR4/3), very hard, only 0 <br /> --- enough sample for geology. <br /> 15 <br /> ' s =_= M SILTY SAND—(2.5Y6/4), grading to clay Q <br /> "' ""' in bottom 6', hard. <br /> ' 20 <br /> 1506 i SM SILTY SAND—(2.5Y5/6), very fine to fine 0 <br /> ' grained, slight silt matrix. <br /> ' 25 <br /> 1 <br /> 30 <br /> Notes: SAND CLAY ® Annular Seal ® Grout <br /> ' SILT Sample Submitted to Laboratory <br />