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GROUND ZERO ANALYSIS LOG OF WELL MW4 <br /> PROJECT TUFF BOY TRAILERS LOCATION 5151 ALMONDWOOD DRIVE, MANTECA CA PROJECT NO. _335 <br /> DATE DRILLED 01/22/01 LOGGED BY SEAN GARVEY REVIEWED BY JOHN P. LANE RG No. 6795 <br /> DRILLING COMPANY YAW WELL DRILLING _ DRILLER KEVIN CROSS METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 20 El DEPTH TO WATER INITIAL 8.5 - l STATIC 7.5E_ <br /> CASING TYPE PVC FARO DIAMETER 2 IN SCHEDULE 40 INTERVAL 9 FT TO SEL <br /> SCREEN TYPE PVC_17490 DIAMETER 2 IN SLOT SIZE (.010 IN INTERVAL 5 FT TO 20 FT <br /> FILTER PACK TYPE 2112 SAND INTERVAL 3 FT TO 20 FT <br /> SURFACE SEAL TYPE CONCRETE FLUSH WELL BOX WITH BENTONITE INTERVAL 0 FT TO 3 FT <br /> COMMENTS: PAGE I OFA <br /> WELL DEPTH Fl FLE 10 U.S.C. DESCRIPTION <br /> DETAIL FT. PPM BLOWCOUNT LOG <br /> 2 0-6/9.5' WELL GRADED SAND (SW): 90-95X FN—CRS, A—SA, W GRDD <br /> SND; 5-10% FNS, L.S, BAN, NPO, MST <br /> 4 <br /> 0 2 SW <br /> 3 <br /> 6 5 <br /> / 4.5-11 WELL GRADED SAND (SW): >95% FN—CRS, A—SR, W GRDD <br /> SND; <5% FNS, LS, SRN, NPO, WET <br /> a <br /> —17 <br /> _ TBT—MW4-10' <br /> 10 3 <br /> 0 3 SW <br /> 3 <br /> _ 12 11/ILS-16/19.5' SILTY CLAY (CL/ML): 10-15% FN—M, A—SA, W GRDD SND; <br /> 85-90% FNS, L—M DRY STRNGTH, L—M PLST, NRD, BRN, <br /> NPO, WET <br /> t4 <br /> 17 <br /> 0 18 CL/ML <br /> 16 21 <br /> 16/19.5-21SILT (ML): <5% FN. A SND; >957 FNS, N DRY <br /> STRNGTH, R DLTNCY, L TGHNSS, N PLST. V STIFF, BRN, <br /> 18 NPO, WET <br /> TBT-MW4-20' <br /> 20 0 12 ML <br /> 18 <br /> 19 <br /> —22- <br /> -24- <br /> -26- <br /> -28- <br /> -30— <br /> 26 <br /> 28 <br /> 3a ,��pirD r'FO <br /> C7 !Q <br /> 32 jOfJ,N P Ni <br /> • LANE <br /> 34 Cn� 0. 6795 • <br /> 36 �F CA1:;F�P <br /> —38- <br /> 40— <br />