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t <br /> r The annular space surrounding the screened portion was backfilled with No. 3 Lonestar sand <br /> {-- (filter pack) to approximately 2 feet above the top of the screened section. An approximately <br /> 1-foot-thick interval of bentonite pellets was added to the annulus above the filter pack and <br /> hydrated with approximately 5 gallons of deionized water to minimize intrusion of well seal <br /> �r into the filter pack. The remaining annulus was sealed with a neat cement out to the <br /> p g � <br /> surface. A traffic-rated utility box was installed around the top of the well casing and set in <br /> concrete. An expanding, watertight well cap and lock were installed on top of the well <br /> casing to secure the well from surface fluid and tampering. <br /> f <br /> J <br /> r-• <br /> `1 <br /> I <br /> i <br /> ! I <br />