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July 16 , 1987 F AGS Job No. 87048-1 <br /> Beacon Station #675 - Lockeford°, .ICA T' <br /> was set from the top of the screened casing to the surface. All <br /> A <br /> ILL casing joints are threaded and no glues_ chemical cements, or <br /> solvents were used in well constructionl_.- The tap of the casing <br /> is covered with a - slip cap and the bottom has a threaded end <br /> plug, - •. ._ - _ � �-_� � . - . <br /> N r -• <br /> The annular space of each well was backfilled with #3- Monterey <br /> sand from total depth to` approximately 2 feet above the screened <br /> casing. A bentonite plug, approximately 2 feet thick,.Iwas placed <br /> above the sand as a seal =against cement =entering the sand pack, - <br /> and the remaining annulus was backfilled with neat cement to <br /> grade. Graphic representations .of well constructions are shown <br /> on the right margin of the Boring .Logs . ' <br /> t, <br /> A cast-iron CNI utility box, with!-stee.l apron, was placed over <br /> each well head and concreted . intc place-af_lush with the <br /> surrounding surface grade. The -utility box,'has a water-tight <br /> i <br /> threaded seal to-protect against surface water infiltration and <br /> requires a specially-designedspanner wrench to open that reduces <br /> the possibility of well vandalism... or accidental -disturbance. <br /> - <br /> r <br /> App/ied GeOSystems <br />