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ASSOCIATES INC <br /> 1260&##a Dm,Mode fo,cam 95351 LOG OF WELL MW4 <br /> PROJECT FARMER R P TY LOCATION 61.0 N-ORTH-_HUNTER STREET, STOCKTON, CA PROJECT NO 62596.0001 <br /> s DATE DRILLED 3-24-98 LOGGED BY TOM LUTTERMAN REVIEWED BY JEANNE HOMSFY C47410 <br /> \ ti DRILLING COMPANY V&W DRILLING INC. DRILLER I ARRY DIRRI F – METHOD HOI I OW STEM ALIGEIR, <br /> ' BORE HOLE DIAMETER aT IN DEPTH DRILLED 41 FT DEPTH TO WATER INITIAL –25FT STATIC _ 223 FT <br /> CASING TYPE PVC DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT TO 21 FT <br /> SCREEN TYPE PyC _ DIAMETER 2 IN SLOT SIZE 0.020 1N INTERVAL 21 FT TO _ Al _FT <br /> FILTER PACK TYPE SRI SUPREME SAND NO. 8 INTERVAL 19 EL TO Al ET <br /> SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE _ INTERVAL 0 TFT TO - 12 -FT <br /> COMMENTS PID BACKGROUND READINGS 0 – 4 Cpm _ PAGE 1 OF <br /> WELL DEPTH PID SAMPLE ID LITHOLOGIC DESCRIPTION <br /> DETAIL FT PPM BLOWCOUNT LOG <br /> ' 0-3 – Asphalt <br /> 2 <br /> 3"-11 5/150 LEAN CLAY WITH SAND (CL) <25% FINE POORLY <br /> 4 GRADED SAND >75% FINES MEDIUM–HIGH DRY STRENGTH <br /> CL MODERATE DARK YELLOW BROWN NO PRODUCT ODOR NO <br /> 4 ORGANICS MOIST WEAK CEMENTATION HOMOGENEOUS <br /> 6 O6 4 <br /> 7 <br /> 8 <br /> ' 10 <br /> 0$ a <br /> 10 <br /> 13 <br /> ' 12 <br /> 14 <br /> $ 5P–SM <br /> 1fi 29 a <br /> 8 11 5/15 0-16 5/20 O'POORLY GRADED SAND WITH SILT (SP–SM) 90% FINE <br /> POORLY GRADED SAND 10% FINES DARK YELLOW BROWN, <br /> 18 NO PRODUCT ODOR, ORGANICS MOIST WEAK CEMENTATION <br /> ' HOMOGENOUS <br /> 20 5 <br /> 2 g SM 16 5/20 0-21 5/25 0' SILTY SAND (SM) >857. FINE POORLY GRADED SAND <br /> 14 <15% FINES DUSKY YELLOWISH BROWN NO PRODUCT <br /> 22 ODOR NO ORGANICS MOIST WEAK CEMENTATION <br /> • j—_ HOMOGENOUS <br /> S � <br /> = 24 <br /> 29 FP–MW4-25 5 Q <br /> 3 <br /> e <br /> _26— 14 <br /> = r <br /> 28 <br /> t = <br /> 30 29 t <br /> 16 SP 21 5/25 0-36 5-40 0 POORLY GRADED SAND (SP) >90% MEDIUM POORLY <br /> 32 GRADED SAND >10% FINES DUSKY YELLOW BROWN, <br /> _ NO PRODUCT ODOR NO ORGANICS WET WEAK <br /> CEMENTATION HOMOGENOUS <br /> 34 <br /> FP—MW4-35 5 <br /> 26 <br /> ' = <br /> 29 36 <br /> = 3fi 42 <br /> 36 5/40 0-41 O LEAN CLAY (CL) <5% FINE POORLY GRADED SAND <br /> 38 >95% FINES MEDIUM–HIGH DRY STRENGTH NO <br /> DILATANCY MEDIUM TOUGHNESS MEDIUM PLASTICITY <br /> --= DARK GREENISH GRAY NO PRODUCT ODOR NO ORGANICS <br /> 40 2 9 20 CL MOIST, WEAK CEMENTATION HOMOGENOUS <br /> so <br /> 42 <br />