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1 <br />' GROUND ZERO ANALYSIS LAG OF BORING DB--2 <br /> PROJECT KNOWLES HAMMER LOCATION 1140 WEST HAMMER LANE._STOCKTON CA PROJECT NO 95-013 <br /> DATE DRILLED _07/15/98 LOGGED BY JEANNE BUCKTHAL REVIEWED BY JOHN P LANE REG No 6795 <br />' DRILLING COMPANY WOODWARD DRILLING CO DRILLER AMADOR ARROYO_____ __ METHOD HOLLOW STEM <br /> BORE HOLE DIAMETER 8 1N DEPTH DRILLED 71 FT DEPTH TO WATER INITIAL 39 5 FT STATIC FT <br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL F7 TO FT <br /> SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL FT TO FT <br />' FILTER PACK TYPE NA INTERVAL FT TO FT <br /> SURFACE SEAL TYPE NEAT CEMENT INTERVAL 0 FT TO _ 71 FT <br /> COMMENTS PAGE I OF-2-- <br /> WELL <br /> F_2_WELL DEPTH FID SAMPLE ID U S C DESCRIPTION <br />' DETAIL FT (PPM) ELOWCOUNT LOG <br /> 2 0-11/20 SANDY LEAN CLAY (CL) 30-40% FN—CRS W GRDD SND <br /> <5% FN GRVL 60-70% FNS M—H DRY STRNGTH <br /> SLW—R DLTNCY L—M TGHNSS L—M PLST V STIFF <br /> DIRK SRN NPO DRY—MST <br /> 4 <br /> (NATIVE BACKFILL) <br /> CL <br /> � (Hatn. Fill} <br /> I <br /> 10 4 <br /> 0 8 <br /> 13 <br /> 12 <br /> 14 <br /> 11/20--21 5/30 POORLY GRADED SAND (SP) >95: FN—M PRLY GRDD SND <br /> <57 FNS DNS LT BRN NPO DRY <br /> —16— (NATIVE BACKFILL) <br /> 18 <br /> 20 10 <br /> 0 13 SP <br /> 20 (yell- Fill) <br /> 22 <br /> 24 <br />' 215/30-315/35 SILT (ML) <57 FN SND >957 FNS L DRY STRNG'H SLW <br /> DLTNCY L TGHNSS N—L PLST HRD BRN NPO DRY MOTTLED <br /> 26 (NATIVE BACKFILL) <br />' 28- <br /> -30— 0 12 ML <br /> 20 {Non+. Fal) <br /> 30 <br /> 32 <br /> 315/35-36 5/40 LEAN CLAY (CL) <57 FN SNO >951. FNS M DRY STRNGTH <br />' N DLTNCY L—M TGHNSS L PLST V STIFF LT GRY NPO <br /> 34 DRY <br /> . DB2-35 5 <br /> 36 0 12 CL <br /> 12 <br /> 36 5/40-46 5/50 ELASTIC SILT (MH) 5-151. FN—CRS W GRDD SNO <5- FN <br /> — 38 GRVL 85-95 FNS L—M DRY STRNGTH SLW DLTNCY <br /> L TGHNSS L—M PLST STIFF TO V STIFF LT BRN TC ORNG SRN <br /> / MH N—M PO MST—WET SOME MOTTLING SL PO BEGINNING —45 <br /> 4O <br />