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AWASSOCIATES INC. 1250 D*06V�kek C090f q MI LOG OF WELL MW3 PROJECT RIPON UNIFIED S.D_ LOCATION 304 NORTH ACACIA AVENUE. RIPON, CA PROJECT NO. 13099.0001 DATE DRILLED _012799 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSEY C47410 DRILLING COMPANY V&W ORIIIINC INC_„ DRILLER —ROEERT_VICKERY METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER .---8 IN DEPTH DRILLED 36.5 FT DEPTH TO WATER : INITIAL —18.5 FT STATIC 1,9 FT CASING TYPE PVC DIAMETER 2 IN SCHEDULE 40 INTERVAL -- - 0-- FT TO 14 FT SCREEN TYPE PVC DIAMETER 2 IN SLOT SIZE 0.020 IN INTERVAL 14 FT TO 34 FT FILTER PACK TYPE RMC LONESTAR #3 _.,. INTERVAL .- 12__ FT TO 36.5 FT SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FT TO 12 FT COMMENTS: PAGE i OF WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION DETAIL FT. PPM BLOWCOUNT LOG 0-2" - Asphalt 2 4 SP-SM 7 6 1 6 5 2'-5.5/10' POORLY GRADED SAND WITH SILT (SP-SM): 9OX FINE-MEDIUM, POORLY GRADED SAND; 10X FINES; MODERATE YELLOW BROWN, NO 8 PRODUCT ODOR, NO ORGANICS, DRY, WEAK CEMENTATION, HOMOGENOUS 10 1 14 14 16 12 i• 7 14 = 16 18 18 SW 6.5/10-31' WELL GRADED SAND (Sw): >95X FINE-COARSE, WELL GRADED SAND: S <5X FINES; PALE YELLOW BROWN, NO PRODUCT ODOR, NO -- ' RUSO-MW3-2M5 ORGANICS, DRY-WET, WEAK CEMENTATION, HOMOGENOUS r = 20 1 14 16 21 22 = 24 1 12 26 17 2B — 28 30 1 7 14 15 31-31.5/35' LEAN CLAY (CL): <5X FINE, POORLY GRADED SAND; >95X FINES; 32 CL MEDIUM-HIGH DRY STRENGTH, NO DILATANCY, MEDIUM TOUGHNESS, MEDIUM PLASTICITY, MODERATE YELLOW BROWN, NO PRODUCT ODOR, NO ORGANICS, MOIST, WEAK CEMENTATION, HOMOGENOUS 34 „ 1 RUSD-MW3-35.5 MH 31.5/35-36.5' ELASTIC SILT WF 14 SAND (MH): 25X FINE, POORLY GRADED SAND; 19 75% FINES; LOW-MEDIUM DRY STRENGTH, NONE-SLOW DILATANCY, •;s--;s -,s 20 LOW-MEDIUM TOUGHNESS, LOW PLASTICITY, MODERATE YELLOW 36 40 BROWN, NO PRODUCT ODOR, NO ORGANICS, MOIST—WET, WEAK CEMENTATION, HOMOGENOUS _38- 40- 42 84042