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GROUND ZERO ANALYSIS LOG OF BORING DB--3 <br /> PROJECT KNOWLES HAMMER LOCATION 1140 WEST HAMMER LANE, STOCK70N CA PROJECT NO 95-013 <br />. DATE DRILLED 07/14/98 _ LOGGED BY JEANNE 9UCKTHAL REVIEWED BY JOHN P LANE REG No 6795 <br /> DRILLING COMPANY WOODWARD DRILLING CO DRILLER AMADOR ARROY9 METHOD HOILOW STEM <br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 71 FT DEPTH TO WATER INITIAL4J 43 FT STATIC FT <br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO EZ <br /> SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL FT TO FT <br /> FILTERPACK TYPE NA INTERVAL FT TO _ FT <br /> SURFACE SEAL TYPE NEAT CEMENT INTERVAL 0 FT TO 71 FT <br /> COMMENTS PAGE 1 OFA_ <br /> WELL DEPTH FID SAMPLE U S C DESCRIPTION <br /> DETAIL FT PPM BLOWCOUNT LOG <br /> 2 <br /> 4 <br /> 0-21 5/30 SILT (ML) 5-10% FN PRLY GRDD SNO 90-95% FNS SLW <br /> 6 DLTNCY L TCHNSS N—L FLST V STIFF BRN NPO DRY TO MST <br /> (NATIVE BACKFILL) <br /> 8 <br /> 10 6 <br /> D 8 <br /> 8 <br /> 12 <br /> ML <br /> (Na1N• FtH) <br /> 14 <br /> 16 <br /> —18- <br /> 20 8 <br /> a 8 <br /> 17 <br /> 22 <br /> 24 <br /> 21 5/30-31 5/35 WELL GRADED SAND WITH GRAVEL (SW) 70-75% FN—CRS W <br /> GRDD SND 25-30% FN SA—R W GRDD GRVL <5% FNS <br /> V DNS BRN NPO MST <br /> 26 (NATIVE BACKFILL) <br /> 28 <br /> 30 0 8 SW <br /> 24 <br /> 40 <br /> 32 <br /> 31 5/35-36 5/40 LEAN CLAY (CL) <57 FN SND, >95% FNS N DLTNCY M <br /> 34 <br /> TGHNSS L-M PLST STIFF GRY & BRN NPO DRY <br /> D83—36 <br /> 4 <br /> 36 D 6 CL <br /> 8 <br /> 36 5/40-41 5/45 SILT (ML) <51r FN SND >957 FNS SLW DLTNCY L TGHNSS <br /> 38 L PLST V STIFF BRN NPO DRY <br /> /ML <br /> 40 <br />