Laserfiche WebLink
ENGEOLOG OF BORING MWR-27 <br /> I IN C O R P O R A T E D <br /> WELL INSTALLATION DATE DRILLED:August 16,2005 LOGGED/REVIEWED BY:R. Declaro/D.R.H. <br /> RIVER ISLANDS HOLE DEPTH (FT):25.0 ft. DRILLING CONTRACTOR:V&W Drilling <br /> LATHROP, CALIFORNIA HOLE DIAMETER: 10.0 in. DRILLING METHOD: Hollow-Stem Auger <br /> 5044.5.001.01 SURF ELEV(FT-MSL):7.98 ft. HAMMER TYPE: 140 lb.with 30 in.drop <br /> �X <br /> O � <br /> LL N Q <br /> a)U Well: MWR-27 <br /> U o .� Elev.: 10.88 feet MSL(NAVD 88) <br /> L C- DESCRIPTION W v o*L <br /> CL E U o <br /> 0 o cn 5 m 3S <br /> 0 0 <br /> SILTY CLAY(CL),olive brown, medium stiff to stiff, moist <br /> to wet. <br /> Grout <br /> 1 <br /> 5 4"SCH 40 Solid PVC <br /> 8 <br /> 2 <br /> 9 <br /> CLAYEY SILT(ML),olive brown,stiff,wet,trace <br /> fine-grained sand. <br /> 18 Bentonite Plug <br /> 10 3 <br /> SANDY SILT(ML),stiff,wet to saturated,trace clay. 19 <br /> SILTY SAND(SM),light brown, medium dense to dense, <br /> saturated,very fine-grained sand. 35 <br /> 4 18 <br /> SILT(ML),olive brown,very stiff,saturated,some clay. <br /> 15 36 <br /> `o <br /> 44 <br /> 3 5 CLAYEY SAND(SC),olive brown,dense,saturated, X #212 Filter Pack <br /> fine-grained sand. <br /> 3: SILTY CLAY(CL),olive gray,very stiff,saturated, some <br /> 16 .010 SCH 40 PVC Well Screen <br /> fine-grained sand. <br /> 31 <br /> 20 6 <br /> 'o <br /> 0 22 <br /> 4"SCH 40 Solid PVC Sump <br /> Slip Cap w/stainless screws <br /> 0 <br /> N <br /> 7 <br /> 7 <br /> V <br /> N <br /> o Bottom of boring at 23.5 feet. <br /> 9 25 Groundwater encountered at 10.5 feet during drilling. <br /> N <br /> U <br /> A) <br /> 8 Bottom of well at 22 feet. <br /> U <br /> g <br /> U <br /> 0 <br /> 0 <br /> N <br /> 9 <br /> 4 <br /> 30 <br />