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"ASSOCIATES INC Is Emptm Orta, u9sta, oftwir 95151 LOG OF WELL MW5 16 PROJECT FARMER PROP RTY LOCATION 610 NORTH HUNTER STREET STOCKTON CA PROJECT NO 62596. 0001 DATE DRILLED - 3-04-98 LOGGED BY TOM 1UTTFRLIAN REVIEWED BY JEANNE HOMSFY 047410 DRILLING COMPANY VRI/ DRII I ING INC DRILLER IARRY DIRRIF METHOD HOI OW STFM AUGER BORE HOLE DIAMETER a IN DEPTH DRILLED 41 FT DEPTH TO WATER INITIAL X25 - FT STATIC 25.5 FT 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 - SRL CUPRFMF SAND NO R INTERVAL 19 FT TO 41 FT ' SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FT TO 19 FT COMMENTS _ PID RACKGROUND READINGS 0 — 4 ppm PAGE 1 OF WELL DEP ID SAMPLE ID LITHOLOGIC DESCRIPTION DETAIL TV PPM BLOWCOUNT LOG 0-3r — Asphalt and Concrete 2 4 22 6 299 1 4 2 ' 8 CL 3" - 165/200 LEAN CLAY (CL) < 15% FINE POORLY GRADED SAND 10 1 41 >85% FINES, MEDIUM TOUGHNESS MEDIUM—HIGH 12 PLASTICITY, MODERATE YELLOWISH BROWN NO 19 PRODUCT ODOR NO ORGANICS DRY—MOIST WEAK 12 CEMENTATION HOMOGENOUS — 14 - 12 16 1 4 20 28 oil ON r'I I S 20 2 O 5 ' — 7 SM 2 16 5/20 0-21 5/25 0 SILTY SAND (SM) 607. FINE—COARSE, WELL GRADED _ 22 SAND 40% FINES MEDIUM DARK GREY SLIGHT _ PRODUCT ODOR NO ORGANICS MOIST WEAK 24 CEMENTATION HOMOGENOUS ! 61 FP—MWS-255 13 26 32 SP—SM 21 5/25 0-26 5/30 0 POORLY GRADED SAND WITH SILT (SP—SM) 909 FINE _ 28 POORLY GRADED SAND 103 FINES SLIGHT PRODUCT ODOR 30 D'—MW5-305 33 10 CL 12 265/300-31 5/35 0' LEAN CLAY (CL) <15% FINE POORLY GRADED SAND 32 >85% FINES, LOW—MEDIUM TOUGHNESS, MEDIUM _ = PLASTICITY, DARK YELLOWISH BROWN, NONE—SUGHT _ r � 34. PRODUCT ODOR NO ORGANICS MOIST WEAK CEMENTATION HOMOGENOUS 2 fP-MW5-355 4 ' = 36 6 5 5 SP—SM 38 31 5/35 0-41 5' POORLY GRADED SAND WITH SILT (SP—SM) 90% FINE POORLY GRADED SAND, 107. FINES, DARK YELLOW 40 BROWN, NO PRODUCT ODOR NO ORGANICS, MOIST 1 4 15 WEAK CEMENTATION HOMOGENOUS 20 ' 22 442