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0 <br /> be filled with a graded silica sand filter pack to approximately 2 feet above the top of the well screen. <br /> Approximately 2 feet of bentonite pellets will be placed above the sand pack and allowed to hydrate for a <br /> minimum of one hour. A neat cement grout will be placed above the bentonite to ground surface. The <br /> filter pack, bentonite pellets, and neat cement grout placed via tremmie pipe as the drill pipe is slowly <br /> removed. The well will be completed at ground surface with a flush—mounted, traffic-rated well box, the <br /> tops of the well casings will be fitted with expandable-gasket lockable caps. <br /> The north side of each well box and the top of the well casing will be surveyed for elevation and location <br /> by a licensed surveyor in accordance with Geotracker database reporting requirements. <br /> Well Development Procedures <br /> Once installed, the wells will be allowed to recover for at least 48 hours prior to development. Well <br /> development will be performed under supervision of Geosyntec personnel and will serve to stabilize the <br /> filter pack and remove fines from the filter pack and well screen. Development will consist of a <br /> combination of bailing, surging, and pumping. Groundwater quality parameters (temperature, pH, <br /> specific conductance, and turbidity) will be measured during purging activities. Development will <br /> continue until turbidity measurements are less than approximately 50 nephelometric turbidity units (NTU) <br /> or until it is deemed that well development is sufficient. <br /> Monitoring <br /> The wells will be monitored on the semi-annual basis in accordance with the Central Valley Regional <br /> Water Quality Control Board MRP No. R5-20090857. <br />