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i of <br /> GROUND ZERO ANALYSIS LOG OF BORING 5B1 <br /> PROJECT TUFF BOY TRAILER LOCATION 5151 ALMONDWOOD, MANTECA CA _ PROJECT NO 335 <br /> DATE DRILLED 12/17/99 LOGGED BY SEAN GARVEY REVIEWED BY JOHN P LANE RG No 6795 <br /> DRILLING COMPANY FISCH ENVIRONMENTAL DRILLER R BERTILLO METHOD DIRECT PUSH <br /> BORE HOLE DIAMETER 1 75 IN DEPTH DRILLED 26 FT DEPTH TO WATER INITIAL _ 95 FT STATIC — — FT <br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT <br /> SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL ET TO FT <br /> FILTER PACK TYPE -NA- -_ _- INTERVAL _ - FT TO FT <br /> SURFACE SEAL TYPE _ NEAT CEMENT GROUT - INTERVAL 0 FT TO 26 FT <br /> COMMENTS PAGE I OF 3 <br /> WELL DEPTH FID SAMFLE ID U 5 C. DESCRIPTION <br /> DETAIL FT PPM BLOWCOUNT LOG <br /> 0-6/9 <br /> ' GRADED <br /> T SAND <br /> PO( MS95% FN —M, A—SA, W GRDD SND, <br /> 2 SR FNS <br /> 4 SW <br /> 100 <br /> 6 <br /> 6/9-11/14' WELL GRADED SAND (SW) 99-100% FN—CRS A—SR W GRDD <br /> / SND TRC FNS, GRY M—STRNG PO WET <br /> B / <br /> TBT—SB1-10' <br /> 10 6 000 SW <br /> 12 <br /> 14 TBT—SBI-15 <br /> 71/14-21/24' CLAYEY SAND (SC) 85% FN—CRS, A—SR TO A—SA, W GRDD SND, <br /> 2 15% FNS, BRN, WET, SL PO ® 14 FT <br /> 16 <br /> 18 Sc <br /> 20 <1 <br /> 22 <br /> 21/24-26' SILT (ML) 25% FN A PRLY GRDD SND 75% FNS, N-L DRY <br /> 24 TBT—SBS-25' STRNGTH, SLW—R OLTNCY, L TGHNSS, N PLST, BRN, NPO, MSP <br /> ML <br /> <1 <br /> 26 <br /> 2B <br /> 30 © GEpl� <br /> 32- <br /> - <br /> 2 <br /> JOHN P qu <br /> 34 . LANE O <br /> NNo 6795 4 <br /> A <br /> `. <br /> 36- <br /> - <br /> 6 <br /> —38- <br /> -40 <br />