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1 ASSOCIATES INC 1211G 0Onx, VodekCaBm9S1S1 LOG OF WELL MW4 PROJECT FARMER PROPERTY LOCATION 610 NORTH HUNTER STREET STOCKTON CA PROJECT NO 62596,0001 p DATE DRILLED 3-24-98 LOGGED BY TOM IIITTERMAN REVIEWED BY .JEANNE HOMSFY C47410 S DRILLING COMPANY V&W_ DRII I ING INC_ DRILLER TARRY DIRRI F METHOD HOH OW STEM AIDER ' BORE HOLE DIAMETER a IN DEPTH DRILLED 41 FT DEPTH TO WATER INITIAL - 25 FT STATIC 22.3 EL CASING TYPE PVC DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT TO 21 FT SCREEN TYPE PVC DIAMETER 2 IN SLOT SIZE 0.020 IN INTERVAL 21 FT TO 41 FT ----- FILTER PACK TYPE SRI SUPREME qAND NO R INTERVAL 19 FT TO 41 FT SURFACE SEAL TYPE NEAT CEMENT OVER RENTONITE INTERVAL 0 FT TO 19 FT COMMENTS P10 RACKQROUND READINGS O - 4 nnm PAGE 1. OF� WELL DEPTH PID UTHOLOGIC DESCRIPTION DETAIL FT PPM BLOWCOUNT LOG 0-5' — Asphalt 2 ' 3' - 11 5/15 0 LEAN CLAY WITH SAND (CL) <25% FINE POORLY 4 GRADED SAND >759 FINES MEDIUM—HIGH DRY STRENGTH CL MODERATE DARK YELLOW BROWN NO PRODUCT ODOR NO 4 ORGANICS MOIST WEAK CEMENTATION HOMOGENEOUS 6 06 4 ' 8 7 ' 10 DO 5 150 13 ' 12 1d e SP-SM 16 29 s 11 5/15 0-18 5/20 O'POORLY GRADED SAND WITH SILT (SP-SM) 90% FINE O \ m oilPOORLY GRADED SAND 10% FINES DARK YELLOW BROWN, ' 11:01 18 NO PRODUCT ODOR, ORGANICS MOIST WEAK CEMENTATION HOMOGENOUS 20 29 9 SM 16 5/20 0-21 5/25 O' SILTY SAND (SM) >85% FINE POORLY GRADED SAND 14 < 15% FINES DUSKY YELLOWISH BROWN NO PRODUCT 22 ODOR NO ORGANICS MOIST WEAK CEMENTATION HOMOGENOUS ' = -24 - 29 2429 FP-MW4-3 5 Q. _ 3 26 b 74 28 30 29 1 16 SP 21 5/25 0-36 5-40 0 POORLY GRADED SAND (SP) >90% MEDIUM POORLY 32 GRADED SAND > 10% FINES DUSKY YELLOW BROWN, t = NO PRODUCT ODOR NO ORGANICS WET WEAK CEMENTATION HOMOGENOUS 34 — _ FP-MW4-355 _ 26 29 36 42 ' = 65/400- 41 D LEAN CLAY (CL) <5% FINE POORLY GRADED SAND 7 = 1 38 >95% FINES HIGH DRY STRENGTH NO DILATANCY MEDIUMDIUM TOUGHNESS MEDIUM PLASTICITY DARK GREENISH GRAY NO PRODUCT ODOR NO ORGANICS 40 29 20 CL MOIST, WEAK CEMENTATION HOMOGENOUS I SO 42