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LAWRENCE & ASSOCIATES PROJECT: SHEET 2 OF 3 PHONE (530) 244-9703 NEW MONITORING WELLS 2001 MARKET STREET, RM. 523 TH //: TH-6 REDDING, CA 96001 FAX (530) 244-5021 JOB #: C.91.06.048 DATE: 9/22/92 I LOGGED BY: DAVID KIRK DRILLER: PITCHER DRILLING CO. t WELL CASING ELEVATION: 59.38' MSL FIELD LOCATION EQUIPMENT AND SPECIFICATIONS: OF WELL MUD ROTARY 10-1/4" BR LOGGING METHOD: DRILLING-FLUID RETURN LOGGING DIRECTLY SUPERVISED BY DAVID A. LAWRENCE, R.G. 1924 DATE DRILLED: JULY 2, 1992 THROUGH JULY 9, 1992 W Z ap m H li mzo 0O> VQrJ�, o� DESCRIPTION 0 UO 0F0 100 CL 98 - 105' CLAY, WHITE 10 1/4" HOLE CL 105 - 112' CLAY WITH MEDIUM SAND, STIFF, MEDIUM BROWN GROUT SEAL (PORTLAND TYPE II CEMENT WITH 5% CL 112 - 115' CLAY, STIFF, LIGHT REDDISH BROWN TO GRAY BENTONITE POWDER) SM — 115 - 120' CLAYEY SAND, STIFF, MEDIUM BROWN CL 120 - 125' CLAY, VERY STIFF, MINOR 125 SAND, MEDIUM BROWN 4" PVC BLANK CASING, CL 125 - 130' CLAY, STIFF, MEDIUM BROWN SCH 40, WITH THREADED ENDS CLAY, STIFF, MINOR IRON FOR FLUSH-COUPLED JOINTS 130 - 132' OXIDE PARTICLES, GRAY BENTONITE-PELLET BARRIER, WETTED AND ALLOWED TO HYDRATE BEFORE GROUTING CL 132 - 155' SANDY CLAY, FIRM, MEDIUM BROWN 4" PVC SCREEN SCH 40, 20 SLOT,WITH THREADED ENDS FOR FLUSH-COUPLED JOINTS 150 ML _ _ 155 - 165' SILT, DENSE, MINOR SAND, MEDIUM BROWN M L _-_- 165 - 170' CLAYEY SILT, REDDISH BROWN C SILTY CLAY AND MEDIUM SILTY SAND, CENTRALIZERS, 4 90' , 170 - 175' INTERBEDDED, DARK YELLOW BROWN CENTERS WITH 100"" O.D. 175 CL 175 - 180' CLAY, STIFF, YELLOW BROWN CL 180 - 191' CLAY, STIFF, BLUE GRAY CL 191 - 206' SILTY SAND, MEDIUM BROWN 200 NOTES: WELL CONSTRUCTION SYMBOLS SCH. 40, 4-INCH PVC SCREEN, BENTONITE BARRIER 20-INCH SLOTS) 20-SLOT (0.0 ' GROUT SEAL #3 LONESTAR SAND ® (PORTLAND TYPE II CEMENT) FIGURE 6B P:\SIMP-RIP\Bomq Loq TH-6.dvq J.M.B. 10/27/2008