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"C'SSOCIATES INC 1260 Crophlcs Daae,Woko.C 4omo,95351 LOG OF BORING S B 3 PROJECT THIEMANN PROPERTY LOCATION 106 WEST SECOND STREET, RIPON, CA PROJECT NO 62605 0001 DATE DRILLED 11/05/98 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410 DRILLING COMPANY V&W DRILLING DRILLER _ROBERT VICKERY METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER 8 IN DEPTH DRILLED 31 5FT DEPTH TO WATER INITIAL 25' 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 INTERVAL 0 TO 315 FT ' COMMENTS PAGE 1 OF__L WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION DETAIL FT PPM BLOWCOUNT LOG ' 0-2" ASPHALT ROADBASE MATERIAL 2 4 zt 6 2 24 28 ML 6"-16 5/20' SILT WITH SAND (ML) 25% FINE POORLY GRADED SAND 75% FINES, LOW—MEDIUM DRY STRENGTH, SLOW DILATANCY, LOW TOUGHNESS MODERATE YELLOW—BROWN, NONE—SLIGHT PRODUCT ODOR, NO ORGANICS 1 D DRY—MOIST WEAK CEMENTATION, HOMOGENOUS is 2 20 ' 25 12 -14- 16 41fi 2 26 32 ' 16 5/20-20 5' POORLY GRADED SAND WITH SILT (SP—SM) 90% FINE—MEDIUM POORLY 18 GRADED SAND 10% FINES NO DRY STRENGTH RAPID DILATANCY LOW TOUGHNESS, NO PLASTICITY MODERATE YELLOW BROWN NO PRODUCT ODOR, NO ORGANICS, DRY-MOIST, WEAK CEMENTATION, HOMOGENOUS 20 SP-5M 2 31 20 5-21 5/25' POORLY GRADED SAND (SP) >959 FINE-MEDIUM POORLY GRADED SAND 43 <5% FINES, PALE YELLOW BROWN NO PRODUCT ODOR, NO ORGANICS, 22 SP MOIST WEAK CEMENTATION, HOMOGENOUS ' 21 5/25-25 5' SILTY SAND (SM) 70% FINE-MEDIUM POORLY GRADED SAND, 307. FINES, DARK GREENISH GRAY, MODERATE-STRONG PRODUCT ODOR, 24 NO ORGANICS WET WEAK CEMENTATION HOMOGENOUS SM 23 2s 400 26 37 28 SP 25 5-31 5' POORLY GRADED SAND (SP) >90% FINE-MEDIUM POORLY GRADED TP-SB3-30 5 SAND <10% FINES DARK GREENISH GRAY WET WEAK 30 35CEMENTATION HOMOGENOUS 36 ' 32 200 42 34 36 38 ao