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&=ASSOCIATES INC LOG OF WELL MW2 1260 Gaphm ane,Wed,CoganxI,9635! ' PROJECT LOCATION 1805 HARBOR STREET. STOCKTON_ CA PROJECT NO 62500.0001 DATE DRILLED o81298 LOGGED BY TS)M It ITTFRMAN REVIEWED BY JEANNE HOMSEY C47410_ — ,*ORE ILLING COMPANY V&W DRILLING INC_ DRILLER I ARR IAB METHOD HQIIQW STEM AUGER HOLE DIAMETER 8 IN DEPTH DRILLED 28 FT DEPTH TO WATER INITIAL —14 - FT STATIC 27 ET CASING CAREEN TYPTYPE PVC DIAMETER 9_IN SCHEDULE AD INTERVAL -4 � FT TO __ $ T _PVC DIAMETER 2 1N SLOT SIZE 0.020 IN INTERVAL 8 FT TO 28 FT FILTER PACK TYPE SRI Sl1PRFMF SAND NO R _ INTERVAL fi _ FT TO 2R FT ' SURFACE SEAL TYPE NEAT CEMENT OVERBENTONITE _-- INTERVAL 0 FT TO 6 _FT COMMENTS FID BACKGROUND READINGS 45 - 47 ppm PAGE i Of WELL DEPTH PID SAMPLE 0 LITHOLOGIC DESCRIPTION DETAIL FT PPM BLOWCOUNT LOG ' 2 CL 0-6 5/10 LEAN CLAY WITH SANG (CL) 20Z FINE POORLY GRADED SAND 80 5 FINES HIGH DRY STRENGTH NONE-SLOW DILATANCY MEDIUM 6 45 8 TOUGHNESS MEDIUM PLASTICITY GRAYISH BLACK SOFT SLIGHT y 10 PRODUCT DOOR NO ORGANICS DRY-MOIST WEAK CEMENTATION HOMOGENOUS — 8 — 10 50 s 14 S m 25 6 5/10-11 .5/15 SILTY SAND (SM) 60% FINE-MEDIUM POORLY GPADED SAND 40% ' 12 FINES DAR< GREENISH GRAY SLIGHT PRODUCT ODOR NO ORGANICS DRY-MOIST WEAK CEMENTATION HOMOGENOUS 14 \ ]6 $50 12 SP-SM 11 5/15-16 5/20 POORLY GRADED SAND WITH SILT (SP-SM) 90% FINE-MEDIUM 20 POORLY GRADED SAND 10% FINES GRAYISH BLACK MODERATE- STRONG PRODUCT ODOR NO ORGANICS WET WEAK CEMENTATION 18 \ HOMOGENOUS ' — \ 16 5/20-20 5 WELL GRADED SAND WITH GRAVEL (SW) >757 FINE-COARSE 20 CC-MW2-20 5 SW WELL GRADED SAND 20% FINE GRAVEL <5% FINES GRAYISH 880 11 BLACK MODERATE-STRONG PRODUCT ODOR NO ORGANICS WET rl_ 20 WEAK CEMENTATION HOMOGENOUS 22 4 wr 650 14 205-29 POORLY GRADED SAND (SP) >95% FINE-MEDIUM POORLY GRADED 26 16 SP SAND <5% FINES DARK GREENISH GRAY MODERATE-STRONG l 29 PRODUCT ODOR NO ORGANICS WET WEAK CEMENTATION HOMOGENOUS 28 CG-MW2-28 5 60 ' So- -3,- 34 0 3234 ' 36 38 40 ' 42