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1 ' LOG OF WELL MW15C PROJECT KNOWLES ROEK LOCATION CORNER OF EUGENIA AND MARKET STREETS STOCKTON, CA PROJECT NO 329 DATE DRILLED 1_/17/03-1/21/D3 LOGGED BY SEAN GARVEY REVIEWED BY GREG P STAHL RG No 5023 DRILLING COMPANY V&W DRILLING DRILLER KEVIN CROSS METHOD MUD ROTARY ' CONDUCTOR STRING DEPTH TO WATER INITIAL45 ET STATIC FT BORE HOLE DIAMETER 12 1/4 IN DEPTH DRILLED 90 FT ANNULAR SEAL TYPE NEAT CEMENT GROUT WITH 5% BENTONITE CASING TYPE WELDED STEEL DIAMETER s_5/8 IN INTERVAL 0 FT TO9�0 ET INNER STRING ' BORE HOLE DIAMETER . 6 IN DEPTH DRILLED 121 FT CASING TYPE PVC DIAMETER 2 IN SCHEDULE soINTERVAL _ 0 FT TO _- 110 FT SCREEN TYPE PVC PREPACK DIAMETER 2 IN SLOT SIZE 0 020 IN INTERVAL _ 110 FT TO 120 FT FILTER PACK TYPE -'3 SAND INTERVAL 102 FT TO 120 FT ' ANNULAR SEAL TYPE NEAT CEMENT GROUT W/5Y BENTONITE OVER 6' BENTONITE INTERVAL O FT TO102 ET LOG MEASURED FROM GROUND SURFACE FLUID TYPE BENTONITE MUD DENSITY 8.75-10.2 16s/gaVISCOSITY 50-126 3ac COMMENTS CONDUCTOR CASING GROUTED THROUGH GROUT SHOE & CIRCULATED TO GROUND SURFACE CENTRALIZERS PLACED 0 20' INTERVALS ON BOTH CONDUCTOR CASING AND WELL CASING ' LITHOLOGIC KEY SAND/GRAVEL CLAY/SILT FN D603 329AWW15C PAGE 1 OF 1 WELL DETAIL DEPT' DESCRIPTION h FT --LITHOLOGY-% - _ 0'-52' <5% SAND, 95-100% FINES t --=-=`___ 4 1 t _—_- - — — — — — 40-- 50 — _ 52'-60' 25-30% SAND, 70-75% FINES l fi0 J 60'-78' 95-100% SAND, <5% FINES ' 70 80 =—__ _=== 78'-80' 10-20% SAND, 80%-90% FINES ' _—__—______ 80'-106' S5% SAND 95-100% FINES 90 — — — — — — — — 1 1O — _ --` 106'-106 25' 100% SAND ' 11 =____ 1D625'-118' <5% SAND, 95-100% CLAY —_ —_ — — — — — — — 118'-119' 50% SAND, 50% CLAY 12 119'-120' <5% SAND, 95-100% CLAY 1 U) 4 GREGORY P. ��1 * ST t-?. 15 No 5023 16 F OF CAL ' 90 80 70 60 50 40 30 20 10