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A ASSOCIATES INC 1260 Gn#o Dm 9*stn Cam.95351 LOG OF BORING S B 5 PROJECT VAN DYKEN PROPERTY LOCATION 215 WEST MAIN S REET RIPON. CA FORNIA PROJECT NO 14981 0001 DATE DRILLED 07/13/98 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C4Z410 DRILLING COMPANY FISCH ENVIRONMENTAL DRILLER DAVID FISCH METHOD DIRECT PUSH TECHNOLOGY • BORE HOLE DIAMETER 1 5 IN DEPTH DRILLED 26 FT DEPTH TO WATER INITIAL 24 FT STATIC _ FT CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL -- -- FT TO —EZ SCREEN TYPE NA DIAMETER IN SLOT SIZE _— IN INTERVAL FT TO - FT_ FILTERPACK TYPE NA INTERVAL FT TO FT SURFACE SEAL TYPE NrAT cEmEmT VIA TREmoE MCILIgo INTERVAL 26 FT TO ____ __tel COMMENTS ADVANCED-AND EXPOSED SCREEN FROM 31-35 FEET TO COLLECT WATER SAMPLE PAGE 1 OF 1 WELL DEPTH PID SAMPLE 10 UTHOLOGIC DESCRIPTION DETAIL PPM BLOWCOLINT LOG CONCRETE 2 4 D SP–SM 5"-11/14' POORLY GRADED SAND WITH SILT (SP–SM) 90% FINE–MEDIUM, 6 POORLY GRADED SAND, 1OX FINES, DARK YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY–MOIST, WEAK CEMENTATION, HOMOGENOUS i i 10 0 12 —14- 0 11/14-20' POORLY GRADED SAND (SP) >95% FINE–MEDIUM, POORLY GRADED 16 SP SAND, <5% FINES, PALE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY–MOIST, WEAK CEMENTATION, HOMOGENOUS 1$ 2a 0 20-21/24' SILT WITH SAND (ML) 15% FINE–MEDIUM, POORLY GRADED SAND, 85% L FINES, NONE–LOW DRY STRENGTH, SLOW DILATANCY, LOW TOUGHNESS, NONE–LOW PLASTICITY, DARK YELLOW BROWN, NO PRODUCT ODOR, 22 NO ORGANICS, DRY–MOIST, WEAK CEMENTATION, HOMOGENOUS, XM , IRON OXIDE PRESENT 24 NS–SB5-25 0' 0 ML 21/24-26' SILT (ML) <15X FINE, POORLY GRADED SAND, >85X FINES, LOW DRY STRENGTH, NONE–SLOW DILATANCY, LOW TOUGHNESS, NONE–LOW PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, 26 NO ORGANICS, MOIST–WET, WEAK CEMENTATION, HOMOGENOUS, —28- -30- - 32- -34- -36- -38 36 38 40