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-i'_ <br />i <br />The applicant has proposed a post-mining topography with steepened convex slopes Located <br />near the bottom of the reclaimed hillslope (Typical cross-sections A and B). This slope <br />shape has been shown in the literature to be susceptible to erosion. Some reclaimed <br />areas at the Edna mine have been subject to a recurring erosion problem, which, on the <br />basis of field observation, appear associated with a slope convexity. Up to now, the <br />applicant has been unable to control this erosion. The susceptibility of the hi11- <br />slope to erosion could be reduced by eliminating the slope convexity from the foot <br />of the slope. <br />The Act requires that overburden he shaped and graded in such •~ way as i:o prevent erosion. <br />The material could be moved further upslope, a convexity near the crest of a hillslope <br />is less erosive, or disposed of in a permanent overburden stock('ile. <br />10. PRIOR TO M112NING IN THE MOFFAT AREii, TIIE APPLICANT SHALL DEh10NSTR,iTE, BASED <br />UPON ON-THE-GROUND PERFOP.J~1r1NCF., TJlAT TI!E COJJVE:•: LO!'JER .S hciPES DO NOT CAUSE <br />KILLING AND GULLYING OR THr1T KILLING AND GULLYING ON THESE SLOPES CAJJ BE <br />CONT$OLLED. IF TFlE APPLICA;JT'S EFFORTS TO CONTROL RIhLING AND GULLYING IN TIfE <br />AREAS RECLAIMED PROVE UJJSUCCESS F(IL, TIIE APPT.I C'ii N'P WO11 L.D REDESIGN THE POST- <br />MINING TOPOGRAPFIY TO ELIh17PJATE TIIE COh'VE.CI TS' PROM TIIE LOWER PORTIONS OF TIIE <br />SLOPE (PAGE 46). <br />XVII. COAL PROCESSING [JASTF. :1NU NON-COAL PRUCF.SSTNG WA.ti'iE (2.(J5, 9.10, 4..111 <br />Rules pertaining to coal. processing waste and not applical,l,.~ to the Edna Mine. No <br />problems were identified relative to non-coal processing waste. <br />The operation is in compliance with Rules 2.05.3(8) and 2.05.4(2)(f). <br />XVIII. MINE FACILITIES, COAL FLAN DUNG STRUCTURES, S[IP PO P.T FACILITIES (2.05.3(3), <br />2.05.3(7), 4.04) <br />The mine facilities description can be found in [~olumc ?, Section 3.6 of the permit <br />application. General descriptions of r_he huilriinys, the electrical distribution <br />system, and the coal handling structures r:c~re nrnviderl. iill dn~ina7~ from the mine <br />facilities passes through sedirrn_•nt control structures. .Removal and reclamation costs <br />for the facilities are addressed in the bonding section, volume 13, pages 4.B-8 through <br />4.s-la. <br />.\'I f. POA US (2. 0~~.3(3). ~: -rr +J <br />A description of roads i; cnnt.vincd ui PoZumc ~ .;~~c:.ii,n '.5. 'Phis „~ctinn i~ras re- <br />viewed by the Division and was determined to he insufficient to ensure that construc- <br />tion maintenance and Che post mining c:nnditions of the roads into and across the site <br />of operations will control or prevent erosion and siltation, pollution of water or <br />damage to public and private property acco.rdiny to Rule 4.03. <br />One primary deficiency was that access roads and light duty roads were not adequately <br />addressed in the permit applicatin.,r. Therefore, th,~• following stipulation is necessary <br />according to 4.03.2 and 4.n ;. ~. <br />11. THE APPLICANT i~IVtiT l`r'.: Il/I UI:' 'J'r~ '1'!!E UJL'lSIrrJJ J; A',1TIr?N, DES CGN A'.D CON.STRUCTIOJJ <br />CRITERIA, DRAINAGE DESIGd'S, S(%R F,ICING SUBSTANCES, PLrI PlS FOR h1,9INTENhNCE <br />AND PLANS FOR F.EC LA';ri i'ICJJ J~~)R AL/_ :1 C'CE.S.S f2~,A D=' AND L.I r~:HT DUT'i RQ•i DS [:'ITfIIN <br />120 DAYS OF PERMIT ISSL'iih'~E (FACE 47) . <br />