Laserfiche WebLink
hf KLEINFELDER <br /> i <br /> +t i <br />.� Donstructi:on details of the gxrnu�d water m�rutoruyg wells are as i <br /> �follo � � <br /> a The well casing 'will—e'2-=incch-I inside-diameter, flush-threaded <br /> joint, schedule 40 PVC pipe, ". <br /> i <br /> will be constructed in -irich.diameter b <br /> 0 The jKl]ses. <br /> o Well screen section perforation will be 0.020-inch factory-cast <br /> I <br /> . slots. <br /> o The screened section may be set 5 feet above and 15 feet below <br /> the depth where ground water is first encountered. If—ground <br /> w ter is entered within .ZO..feet_of the gprn surface, the, <br /> T screetiad section will be set iess than5 feet above the depth w <br /> water i.s'+enooaante�red!T_... .._.._ <br /> o The PVC pipe will be steam-cleaned prior to installation. <br /> o The annular space between the pipe and the wall of the boring <br /> will be .' backfilled with Nom 16-Monterey sand as a filter pack <br /> material_"._ <br /> aterial to appy x ly 1 foot above the top of the p(orate t <br /> section. � <br /> o A 3-foot bentonite plug will be placed above the sand pack to <br /> - provide a. seal against surface water infiltration. <br /> o The remauung annular space_will be..filled-with,Dement rote k <br /> yrnut to <br /> the surface. <br /> ` I <br /> - f <br /> 29-88-03 12 <br /> f <br /> F <br /> s <br />