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Ash Monitoring Well, AMW-2 <br />• In April, 1993, based on approval of its Minor Revision #21, CEC proceeded with <br />the replacement of Ash Monitoring Well AMW-2, in order to comply the <br />provisions of the Ash Disposal permit. The new well was located approximately <br />ten (10) feet East of the original AMW-2 Well. The replacement well was auger <br />drilled to a depth of fifty-one (51) feet with a bore diameter of 13 5/8", and was <br />completed using eleven (11) feet of perforated 6 inch PVC casing below thirty- <br />nine (39) feet of six inch blank PVC casing. A two foot silt [rap was installed at <br />the bottom of the casing. Gravel pack (#4 to #30 size) was placed from 37'0" to <br />TD, with cement grout filling the annulaz space from 37'0" to the surface., and a <br />three foot bentonite seal was placed between the gravel and the grout. A steel <br />protective casing was installed around the well to protect it from damage. <br />Once the replacement well was completed, the original AMW-2 Well was <br />abandoned. Cement grout was pumped down the annulaz space, lowering the <br />pump hose then raising it with the level of the slurry mixture to prevent void <br />spaces, until the returns reached the surface. The casing was cut off three feet <br />below the surface, then capped and backfilled. <br />All of the work on both the drilling of "replacement AMW-2" well and the <br />abandonment of the "original AMW-2" well was directly supervised by a <br />geologist who both logged the new well and insured correct drilling and <br />• completion procedures were followed. A copy of the replacement well <br />completion information can be found under Appendix I-3. <br />• <br />57b 8/04 <br />