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ASSOCIATES INC LOG OF BORING SB12 1117 Lolls Pdm Ave,Ste.k"Edo,cam,95351 PROJECT VAN DYKEN PROPERTY LOCATION 215 WEST MAIN STREET, RIPON, CALIFORNIA PROJECT NO 14981 0001 DATE DRILLED 10/04/01 LOGGED BY JOHN SELLMAN REVIEWED BY JEANNE HOMSEY C4741 .DRILLING COMPANY FISCH ENVIRONMENTAL DRILLER DAVID FISCH METHOD DIRECT PUSH TECHNOLOGY_ _ BORE HOLE DIAMETER 1 5 IN DEPTH DRILLED 30 FT DEPTH TO WATER INITIAL 28.7 FT STATIC FT CASING TYPE NA __ DIAMETER IN SCHEDULE INTERVAL El TO _ FT SCREEN TYPE NA DIAMETER __--_____IN SLOT SIZE IN INTERVAL FT TO EI FILTER PACK TYPE NA INTERVAL FT- TO F7- SURFACE SEAL TYPE NEAT CEMENT VIA TREMIE METHOD INTERVAL _ 30 FT TO _, _ El COMMENTS PAGE 1 OF WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION DETAIL FT PPM BLOWCOUNT LOG 2 4 0 SILTY SAND (SM), 70% POORLY GRADED MEDIUM SAND, 30X FINES SM O-6/9' YELLOWISH RED, NO CHEMICAL ODOR NOTED, DRY, WEAK CEMENTATION, 6 HOMOGENOUS B \ 10 80 SP 6/9-11/14' GRADEDPOORLY O 5% FINES. BROWNISHYELLOW. SE, NO CHEMICAL NOTED, NO ORGANICS, MOIST, WEAK CEMENTATION, HOMOGENOUS i 12 i i —14- 90 490 ML 11/14-16/19' SANDY SILT (ML), 40X FINE POORLY GRADED SAND, 6OX FINES, SB12 LOW DRY STRENGTH, LOW TOUGHNESS, NON PLASTIC, STIFF, BROWN, 16 14-16' NO CHEMICAL ODOR NOTED, NO ORGANICS MOIST, WEAK CEMENTATION HOMOGENOUS 18 20 7 5 SP POORLY GRADED SAND (SP), 1DOX FINE TO MEDIUM SAND, 16/19-21/24' LIGHT GRAY, NO CHEMICAL ODOR NOTED, NO ORGANICS, MOIST, WEAK CEMENTATION, STRATIFIED 22- -24- - 8 5 ML 21/24-30' SANDY SILT (ML), 40% FINE POORLY GRADED SAND, 60% FINES, 5812 LOW DRY STRENGTH, LOW TOUGHNESS, NON PLASTIC, STIFF, BROWN, 26 24-26NO CHEMICAL ODOR NOTED, NO ORGANICS, MOIST, WEAK CEMENTATION, STRATIFIED —28- 30— S812-W 32- -34- 36- 38- -40—