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t �s <br /> but <br /> The screen will extend at least ten fell eXtendtseveralmore hfeet5 <br /> feet in the saturated zone. Screen w groundwater <br /> above the saturated zone to accommodate seasonal g <br /> fluctuations. Flowever, these depths may be modified if <br /> groundwater is shallower than anticipated, <br /> The bottom of each well will be fitted with threaded bottom <br /> ofceach <br /> or a stainless steel screw secured friction cap• <br /> The top well will be secured with a locking Pg p• <br /> The gravel pack will consist of clean 32/12 Lonestar sand. This <br /> are <br /> gravel pack size was selected because T�engravelgrained <br /> packawillaextend <br /> expected in the zone of saturation. <br /> two feet above the screen. If the groundwater is shallower than <br /> anticipated the gravel pack will only extend to the top of the <br /> screen. <br /> A one to two foot bentonite seal will be placed over the gravel <br /> pack. The well will then be sealed to the surface with a have to <br /> Portland cement and 5% bentonite grout mix- The seal may <br /> be modified if groundwater is shallower thaanticipated.. A <br /> tamper resistant well cover will be placed <br /> er the well <br /> 1 <br /> 3.4 WELL DEVELOPMENT <br /> The well will be developed at least 24 hours after <br /> the wells are <br /> completed. well development will allow hydraulic <br /> conductivity of the formation near the well to be restored and <br /> sediment that resulted from the drilling and installation of the <br /> wells to be removed. IT will develop <br /> the wells by initially <br /> a bailer and or surqe block. This <br /> surging the wells utilizing ravel pack <br /> will allow water to move in and out of the ll anis ravemmon when a <br /> in order to avoid bridging the particles, which <br /> continuous, single direction groundwater flow is present. After <br /> ly surged, The well will be evacuated by <br /> the well is sufficient <br /> 3-5 <br />