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n <br />U <br />• <br />• <br />Ash rionitorinc Well. AMW-2 <br />The Division of Minerals and Geology ie aware of the current <br />situation of Aeh Monitoring Well (AMW-2). Coors Energy <br />Company has opted to replace the Well. Accordingly, this <br />rill comply with stipulations set forth in the Aeh Disposal <br />permit document. The new location rill be approximately ten <br />(10> feet east of the original AMW-2 Well. <br />MINOR REVISION <br />The specific design criteria for this Well is given below: <br />BORE HOLE <br />a> Borehole Diameter ...............................13.6" <br />b) Maximum Borehole depth ..........................50' <br />CASING STRING <br />a) Perforated teeing <br />flush thread PVC, <br />b) Blank casing - 6• <br />0.0• to 39'0• <br />- 32/1000 slot, 6• ID, <br />39' to 50' maximum. <br />ID, schedule 40, flush <br />schedule 40, <br />thread PVC, <br />COMPLETION <br />a) Gravel pack t4 to t30 aize ...............37'0" to 50'0" <br />b) Cement grout, neat cement, portland.......0.0" to 37.0" <br />c) Centralizers, ateel ......................1 at 15'and 40' <br />The Well rill be constructed using an Auger drilling <br />technique. The borehole rill be drilled rith a 13 5/t3• <br />hollor stem auger to five t5> feet belor initial rater <br />contact or to a maximum depth of fifty t50) feet belor ground <br />surface. No circulating fluid rill be used. <br />After reaching the desired depth, the borehole rill be <br />thoroughly cleaned of cuttings. The casing rill Lhen be ran <br />into the borehole in the folloring sequence (bottom to top): <br />-60- <br />4/93 <br />