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AlFC ASSOCIATES INC t12W fills kA kek CailM 95351 LOG OF WELL MW2 PROJECT . _-IAN DYKEN PROPERTY LOCATION 715 WEST MAIN STREEL RIPON- CA PROJECT NO 14981-0001 DATE DRILLED 021899 LOGGED BY TOM LUTTERMAN _ REVIEWED BY iEANNE HOMSEY X410 DRILLING COMPANY YAW DRILLING INC- DRILLER RICK BARRAGAN METHOD HOLLOW STEM AUGER _ BORE HOLE DIAMETER 8 IN DEPTH DRILLED 39 FT DEPTH TO WATER INITIAL 27 , FT STATIC __Z___El_ CASING TYPE PVC _ DIAMETER - -2 IN SCHEDULE 40 INTERVAL 0 FT TO 18.5 FT SCREEN TYPE PVC DIAMETER 2 IN SLOT SIZE 0.020 _ IN- INTERVAL 18.5_ FT TO 38-5 FT. FILTER PACK TYPE RMC,I,QNFSTAR #3^_ INTERVAL 16.5 FT TO 38.5 FT ' SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL D FT TO 16-5_ FT COMMENTS SUIRGE RLOCKFO WELL PRIOR TO PLACING TRANSITIONAL SFAL PAGE OF_L WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION DETAIL (Fr) PPM BLOWCOIINT LOG ' 0-2" - Asphalt 2 ' 4 SM 2--55/10 SILTY SAND (SM) <85X FINE–MEDIUM POORLY GRADED SAND 5 >15X FINES, MODERATE YELLOW BROWN, NO PRODUCT ODOR DRY- 6 3 5 4 MOIST WEAK CEMENTATION HOMOGENOUS 5 8 10 35 7 e ID 12 SP 65/10-165/20 POORLY GRADED SAND (SP) >95X FINE–MEDIUM POORLY GRADED 14 SAND <5X FINES PALE YELLOW BROWN NO PRODUCT ODOR 10 DRY–MOIST WEAK CEMENTATION HOMOGENOUS 16 3 5 tz 15 20 3 5 20� 165/20-21 5/20 ELASTIC SILT WITH SAND (MH) >15% FINE–MEDIUM POORLY GRADED MH SAND, <85X FINES, LOW–MEDIUM DRY STRENGTH NONE–SLOW 22 DILATANCY, LOW TOUGHNESS LOW—MEDIUM PLASTICITY MODERATE _ ° YELLOW BROWN NO PRODUCT ODOR MOIST WEAK CEMENTATION HOMOGENOUS ' t = 24 21 5/25-26 WELL GRADED SANG (SW) >95X FlNE–COARSE WELL GRADED SAND 3 5 25 SW <5X FINES, PALE–MODERATE YELLOW BROWN NO PRODUCT ODOR s 26 30 WET, WEAK CEMENTATION HOMOGENOUS — 31 CL S 26-26 5/30' LEAN CLAY WITH SAND (CL) <15X FlNE–MEDIUM POORLY GRADED _ 28 SAND >85% FINES, NO DRY STRENGTH LOW–MEDIUM TOUGHNESS r MEDIUM PLASTICITY MODERATE YELLOW BROWN, NO PRODUCT NSI–Mw2-30 5 ODOR NO ORGANICS MOIST–WET WEAK CEMENTATION HOMOGENOUS 13 31_ 50 SM 265/30-315/35 SILTY SAND (SM) <85X FINE–COARSE SAND >15X FINES — 32 MODERATE YELLOW BROWN, NONE–SLIGHT PRODUCT ODOR, NO ` \ ORGANICS WET WEAK CEMENTATION HOMOGENOUS 34 � y 40 31 SM 31 5/35-35 5/38 SILTY SAND (SM) 60% FINE POORLY GRADED SAND 4OX FINES ' = 36 MODERATE YELLOW BROWN NO PRODUCT ODOR NO ORGANICS 33 WET WEAK CEMENTATION, HOMOGENOUS 38 35 CL- 36 5/38-39' LEAN CLAY (CL) <5% FINE POORLY GRADED SAND, >95X FINES, 35 45 HIGH DRY STRENGTH NO DILATANCY MEDIUM TOUGHNESS MEDIUM PLASTICITY, MODERATE YELLOW BROWN NO PRODUCT ODOR NO 40 ORGANICS WEAK CEMENTATION, HOMOGENOUS 42