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a`"" "° T"""°`°°Y CORP PIEZOMETER / WELL INSTALLATION LOG <br /> • • N0 . MT-1 <br /> CL $EN.T PROJECT PROJECT NO <br /> Marley Cooling Tower Company MCTC - Contract 13, Phase I 11654.682 <br /> PROJECT LOCATIONCOORDINATES TOP OF RISER ELEVATION DATE <br /> Stockton, California Not determined Not determined 4/17/91 <br /> STRATUM MONITORED INSPECTOR <br /> Silty Sand Sand Gravel M. Williams <br /> CHECKED BY APPROVED BY <br /> M. Williams E. Meyer <br /> -0. 15' GROUND SURFACE ELEVATION Not determined <br /> 77 77� <br /> TYPE OF SEAL (.PmPnt-RPntnni tP Grou <br /> 75.0' <br /> 2.5" Nominal Sch. 80 <br /> O.D. & TYPE OF Aluminum <br /> I : RISER PIPE <br /> 87. 5' <br /> Bentonite Pellets <br /> 2.5' TYPE OF SEAL <br /> 2. 5" Nominal Sch . 80 <br /> I* F PVC with 0.01" slots <br /> µ µ TYPE AND SIZE OF <br /> 89'0 �1� SCREEN OR OPENINGS <br /> 9.5' 75.0'-84.0' #3 Lone <br /> s Star Silica Sand. <br /> TYPE OF FILTER 84.0'-89.0' Natural <br /> Sand <br /> 4" <br /> F'. <br /> 0.l0' <br /> ' TYPE OF SEAL NA <br /> 11 <br /> DIAMETER OF BOREHOLE 5-1/2 <br /> METHOD OF INSTALLATION: Boring drilled to completion; set riser pipe and screen; pulled dual <br /> wall casing; placed filter and seal . Grouted to 2' below surface. <br /> REMARKS. Well developed by bailing 5 well volumes of water. Flush mounted, 12" diameter <br /> iron manhole frame and casing installed and concreted in place. <br />