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GROUND ZERO ANALYSIS LOG OF WELL MW4 <br /> . PROJECT TULESURG WAREHOUSE LOCATION 8200 NORTH HIGHWAY 99, STOCKTON CA PROJECT NO 263 <br /> DATE DRILLED 10/8/99 LOGGED BY SEAN GARVEY REVIEWED BY JOHN LANE RG No 6795 <br /> DRILLING COMPANY SPECTRUM DRILLER BOBBY NIXON METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER a IN DEPTH DRILLED 76 FT DEPTH TO WATER INITIAL 64 FT STATIC FT <br /> CASING TYPE PVC F480 DIAMETER 2 JAL SCHEDULE 40 INTERVAL 0 FT TO 55- FT <br /> SCREEN TYPE PVC F480 DIAMETER _ 2 IN SLOT SIZE 0 020 IN INTERVAL 55 FT TO 75 FT <br /> FILTER PACK TYPE A2/12 SILICA SAND INTERVAL 53 Ff TO 75 FT <br /> SURFACE SEAL TYPE NEAT CEMENT GROUT OVER BENTONITE INTERVAL 0 FT TO SEI <br /> COMMENTS PAGE I OF_Z <br /> WELL DEPTH FID SAMPLE ID U S C DESCRIPTION <br /> DETAIL FT PPMBLOWCOUNT LOG <br /> 0-3' ASPHALT <br /> FILL Y-3' FILL <br /> 2 <br /> 4 <br /> 6 ML <br /> 3-11/19 5 SILT (ML) <5% FN, A SND, >95% FNS, N-L DRY STRNGTH, <br /> _ R DLTNCY, L TGHNSS, N PLST, STIFF, BRN, NPO, DRY-MST <br /> 10 p 7 <br /> 7 <br /> 12 <br /> •— _ 14 <br /> 16 <br /> 18 11/19 5-21/29 5' RILOLTNCY, lS0GHN555 NO PLST, VNSTIFF,DBRNS7NPOG7H, <br /> ORGANICS, DRY-MST, TREE ROOT MATTER <br /> 20 B <br /> 0 1D ML <br /> 15 <br /> 22- <br /> -24- <br /> - <br /> 21/29 5-31/39 5' WELL GRADED SAND WITH CLAY (SW-SC) 90% FN-CRS A- <br /> SA, W GRDD SND, 107: FNS, M DNS, BRN, NPO, DRY-MST <br /> —26- <br /> 28— <br /> :::-t <br /> TW-WW4-30' <br /> 30 0 7 Sw_SC <br /> 20 <br /> 32 <br /> 34 31/39 5-41/49 5' SILTY CLAY (CL/MH) <5% FN-M SND, >95% FNS, M DRY <br /> STRNGTH, N-SLW DLTNCY, M TGHNSS, M PLST, BRN, NPO, <br /> DRY, CALCAREOUS <br /> 36- <br /> 38 <br /> Qs <br /> 0 CL/MH <br /> 40 <br />