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3 � 4 <br /> I u . <br /> f ' <br /> L <br /> j gravel now from bottom to -4 1/21 , 1/2 ' above the <br /> perforations . A bentonite clay pellet seal was placed from <br /> -4 1/2 ' to -3 ' and cement grout with a 3% bentonite mix <br /> from -3 ' to surface . I= <br /> 3� <br /> The auger rig was then moved to location # 1 . <br /> At a later time the same day, a Diversified Well Products <br /> Vault was place around the well head and cemented in place <br /> by hand. A Morrison expandable, locking, test well cap was <br /> } placed in the well head. The well Aultltop is approximately <br /> flush with the surface and has a metal cover that requires a <br /> hollow head Allen wrench to open. Ii <br /> ii <br /> Monitor Well # 1 <br /> The auger rig was located at MW # 111, site at 1 : PM, April 4, <br /> 1991 . The surface was cleared of grass and a hole bored to <br /> ' -5 ' where a core was taken, along'l: with a duplicate sample . <br /> The second sample was taken at -101iand -11 ' . Ground water <br /> was found at --12 ' and no more samples were taken. The hole <br /> was bored to -22 ' for a penetration;lof 10' into the water <br /> table. Cuttings and water were disposed of as noted above <br /> for MW # 3 . <br /> 1 <br /> The soils are described as follows ) Surface to -51 , silty, <br /> sandy loam, probable fill material'; - 5 ' to- 10 1/21 , <br /> brown, silty sand and fine to -mediun sand, some coarse sand; <br /> -10 1/2 ' to -221 , well graded sands'Iwith a size increase to <br /> coarse at about -151 . The casing string was made up to go to <br /> bottom at --22 ' but continually pulled up while swabbing. The <br /> casing string was pulled and the hole was deepened to -25, <br /> in an effort to create a bottom sump for the loose sand that <br /> was continually falling into the hole. The pipe was then <br /> placed in the well with the bottom at -221 . The perforated <br /> interval was gravel packed and the well ' was swabbed for <br /> about 30 minutes as described for MW. # 3 . Additional gravel <br /> was added to bring the pack up above the perforations. Two <br /> feet of bentonite pellets were placed above the gravel . <br /> Figure 3 shows the well completion and stratigraphy; Figure <br /> 5 shows the stratigraphic relationship of the three wells . <br /> The casing size etc . is the same inall.. three wells . From <br /> bottom up, Slip-on well cap at -2211}, perforations from -22 ' <br /> to -111 , gravel pack from -22 ' to -10 bentonite from -10 <br /> to -81 , cement grout with 3 % bentonite from -8 ' to -1 ' . <br /> The well was capped at the surface 'with`' a vault and locking <br /> well cap as described for MW # 3 . '1 <br /> Monitor Well i# 2 <br /> I� <br /> This well was bored on April 5, 1991 , rig on site at 8: 30 <br /> AN. This hole was located just west'� of the concrete block <br /> wall shown on the site diagrams, in'' a landscaping ring. <br /> 5 <br /> . �1 { <br />