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<br />Mr. Larry Reschke <br />' amendments will have to be re <br />Furthermore, the implications <br />' the hydrologic balance of the <br />specifically discussed within <br />-5- January 13, 1982 <br />Elected within the amended permit application. <br />of passible roof fall and subsidence upon <br />Ward Creek alluvial aquifer will have to be <br />that amended application. <br />' The applicant has made a few minor amendments to the hydrology and operation <br />plan portions of the permit document, the specific problems mentioned above <br />were not discussed. This discussion should include the results of additional <br />' coring performed, and potential impacts of the amended plan upon subsidence pp, 39,62, <br />and the hydrologic balance of the Ward Creek aquifer. The absence of this 65 67 <br />discussion is a critical deficiency. <br />2) Lack of "D" and "E" Seam Mine Plan Dr. tails <br />The preparation of mine plan maps for the proposed "D" seam workings was <br />' requested in the Preliminary Adequacy Review letter. None have been included <br />within the amended application materials. On page 154, the applicant states: <br />"Safety zones for 'D' seam wilt be fon.'arded when mining begins in that <br />seam." The only indication of a mine plan for the "D" seam is contained as <br />a general projection of estimated scheduling by area on Map 2.05.3(1)-3. <br />Without a detailed plan for the proposed "D" scam workings and an acrompanying <br />map, approval of~the "D" seam (Red Canyon No. 2 mine) wiI1 not be possible. <br />t The "D" scam map should also indicate the proposed safety zones, in which <br />extraction is to be limited to 50$, proposed for minino within the "D" seam. <br />' In addition, the mine plan map for the proposed workings within the "E" coal <br />seam (Red Canyon No. Z mine) should be amended to specifically show the <br />proposed worF:i ngs within the ~+est half of the southeast gua rter of Section-2. <br />This would greatly assist in clarifying the text descriptions on pages 78-80 <br />' of the original application. This amendment would be particularly helpful <br />in clarifying the mine plan changes referred to on page 81 of the amended <br />application, which resulted from the unstable roof conditions encountered <br />' while Honing west in the No. 1 west submains of the existing Red Canyon No. 1 <br />mine. (Se•~ above description.) <br />3) Discrenencies between the Subsidence Text and Subsidence Control Mao <br />The amended application text refers to items purportedly indicated on the <br />"Subsidence Control Map", Map No. 2.05.6(f)(ii)(C)-Z. On page 153, the <br />' applicant states that the "areas of influence" beneath each structure have <br />been indicated on that map. They have not. The map should be properly <br />redrafted to include their indication. Furthermore, on page 154A of the <br />' amended application, the application indicates that the location of subsidence <br />monuments is indicated on that map. They, also, have been overlooked. This <br />map should be properly amended so that the Division can complete the review <br />of the proposed monitoring plan. <br />1 <br />_~ 7 <br /> <br /> <br />