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C AWASS30CIATES INC. 1260 Graphics he,Modesto,Womb,95351 LOG OF BORING S B 6 PROJECT VAN DYKEN PROPERTY LOCATION 215 WEST MAIN STREET, RIPON, CALIFORNIA PROJECT NO. 14981.0001 DATE DRILLED 07/13/98 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410 `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 FT SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL FT TO FT FILTER PACK TYPE NA INTERVAL FT TO FT SURFACE SEAL TYPE NEAT CEMENT VIA TREMIE METHOD INTERVAL 26 FT TO FT LCOMMENTS: ADVANCED AND EXPOSED SCREEN FROM 31-35 FEET TO COLLECT WATER SAMPLE PAGE 1 OF 1 WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION DETAIL FT. PPM BLOWCOUNT LOG 0-2" ASPHALT 2 L 4 0 SP-SM 2"-11/14' POORLY GRADED SAND WITH SILT (SP-SM): 90% FINE-MEDIUM, 6 POORLY GRADED SAND; 10% FINES, MODERATE BROWN, NONE-SLIGHT PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK- MODERATE CEMENTATION, HOMOGENOUS 8 L 10 0 L -12 14 L 0 SM 11/14-16/19' SILTY SAND (SM): 70% FINE SAND; 30% FINES; MODERATE iBROWN, 16 NO PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, r HOMOGENOUS L 18 20 SW L - - 16/19-20/24' WELL GRADED SAND (SW): >95% FINE-COARSE, WELL GRADED SAND; <5% FINES, PALE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS 22 L NS-SB6-25.0' 24 0 ML 20/24-26' SILT WITH SAND (ML): 20% FINE, POORLY GRADED SAND; 80% FINES; NONE-LOW DRY STRENGTH, NONE-SLOW DILATANCY, LOW TOUGHNESS, r NONE-LOW PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT 1 26 ODOR, NO ORGANICS, MOIST-WET, WEAK CEMENTATION, HOMOGENOUS, L IRON OXIDES PRESENT 8C -28- L 30 , 3234LL _32- 34- L 36- -38- 40- -