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<br />f )0! ~~3L".~ . <br />~~~ ~ ~/ilr OFFICE <br />2[75 P,l~" 17 ~'ii I?.: I p <br />Su~fe <br /> <br />t. Fzll <br />•• g A <br />.~ Concrete Plug <br />-~:`~ 50 Ft . Concrete <br />or Hentonite Plug Gel <br />Hz0 Aquifer <br />50 Ft. Concrete <br />or Bentonite Plug Gel <br />;I~:;~ 50 F't . Concrete <br />~;' or' Hentonite Plu4 Gel <br />'" Coal Zone <br />~~: <br />~'~'°~ 50 Ft. Concrete <br />:, <br />_~..: or~Beatonite Pluq Gel <br />1. Hole must be backfilled with as <br />many cuttings as possible, All <br />zemaining cuttings must be <br />dispersed evenly over the <br />surrounding surface, <br />Z. Hole must he blocked to a depth <br />of live (5) ft. below collaz <br />with a~short hole plug. xP water <br />1,s encountered in the drill hole, <br />a concrete plug must be get <br />below ground three'(3) ft. The <br />upper three (3} fit. of the hole <br />i.s then filled with cuttings and <br />soil. <br />3. All water bearing zones will .be <br />concreted or sealed with a <br />beritonite gel plug if a well S,e <br />not developed. If coal seams are <br />encountered, they must be sealed <br />in the same manner. <br />4. A11 sump holes used during <br />drilling must be drained and <br />backfilled. <br />5. The site around the hole must be <br />cleaned up and suYplus cuttings <br />leveled. Seeding disturbed areas <br />~ may be required. <br />Item A <br />ABANDONMENT OF SHALLOW DRILI, HOLE5 <br />NORTHERN ROCKY MOUNTAIN REGION <br />II/OI 'd 66l£6£Z£0£ 'ON Xdd Wd Ib~OI N04I 50-ZZ-911d <br />