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ATC,,SOCIATES INC LOG OF WELL M W 2 1260 Grapto Orr+t,bdesto,CoNoma,95351 PROJECT CONTINENTAI GR61N LOCATION 1805 HARHOR STREET 5TOCKTON. CA PROJECT NO DATE DRILLED 081798 LOGGED BY REVIEWED BY BILLING COMPANY VArW QRII I ING, INC. DRILLER METHOD bRE HOLE DIAMETER S IN_ DEPTH DRILLED 28 FT DEPTH TO WATER INITIAL. ^-14 FT STATIC ___2L.EL CASING TYPE PVC DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT TO B FT_ SCREEN TYPE PVC DIAMETER 2 IN SLOT SIZE (1090) . IN INTERVAL 8 EL TO 7 P, EI - FILTER PACK TYPE INTERVAL TO SURFACE SEAL TYPE NEAT CEMENT OVER BENTQNITEINTERVAL TO -- E ' COMMENTS FID BACKGROUND READINGS 45 - 47 ppm PAGE i OF WELL DEPTH PID AMPLE ID LITHOLOGIC DESCRIPTION DETAIL FT PPM BLOWCOUNT LOG r 2 r 4 I" CL 0-65/10 LEAN CLAY WITH SAND (CL) 20% FINE POORLY GRADED SAND 80 5 FINES HIGH DRY STRENGTH NONE—SLOW DILATANCY MEDIUM 6 45 9 TOUGHNESS MEDIUM PLASTICITY GRAYISH BLACK SOFT SLIGHT 1c I 10 PRODUCT ODOR NO ORGANICS DRY—MOIST WEAK CEMENTATION ' a HOMOGENOUS 8 V - 1a 50SM 9 19 25 65/10-11 5/15 SILTY �D (SM) 60% FINE—MEDIUM POORLY GRADED SAND 40°G 12 FINES DARK GREENISH GRAY SLIGHT PRODUCT ODOR NO ' \ ORGANICS DRY—MOIST WEAK CEMENTATION HOMOGENOUS 14 \ r 9 16 550 12 SP—SM 11 5/15--16 5/20 POORLY GRADED SANDWITHSILT (SP—SM) 90� FINE—MEDIUM 20 POORLY GRADED SAND 10% FINES GRAYISH BLACK MODERATE— STRONG PRODUCT ODOR NO ORGANICS WET WEAK CEMENTATION 18 \ HOMOGENOUS ' \ 165/20-205 WELL GRADED SAND WITH GRAVEL (SW) >757 FINE-COARSE CG-MW2-20 5 SW WELL GRADED $A17D 20% FINE GRAVEL <57 FINES GRAYISH 20 880 11 BLACK MODERATE-STRONG PRODUCT ODOR NO ORGANICS WET s � 13 WEAK CEMENTATION HOMOGENOUS ' 20 22- -24— 650 1420 5-29 POORLY GRADED SAND (SP) >95% FINE—MEDIUM POORLY GRADED 26 16 SP SAND <5% FINES DARK GREENISH GRAY MODERATE—STRONG 25 PRODUCT ODOR NO ORGANICS WET WEAK CEMENTATION ' HOMOGENOUS a 28— CG—MW2-28 5 6d ' 30 —32- 34- 36- -38- - 2343fi38 40-- -42