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- 18 - <br />• <br />• <br />• <br />as required by pertinent regulations will have to be achieved <br />during the mine reclamation. <br />In following paragraphs a general discussion on the <br />future reclamation of individual cuts and fills is presented. <br />5.2 DIVERSION DITCH CUT <br />As discussed earlier, it is evident that the factors of <br />safety of the present diversion ditch cut are very close to <br />unity. It should be expected that even if the cut slope is <br />flattened at present, as recommended, factors of safety still <br />will be unacceptable for the reclamation. <br />ode believe that acceptable factors of safety could be <br />achieved if the upper portion of the cut is flattened and the <br />material obtained from the excavation placed as a buttress <br />against the lower part of the cuts. Such an arrangement would <br />increase the factors of safety to an acceptable level. The <br />exact cut configuration would have to be estimated with the <br />help of analytical methods; this work is being proposed for <br />Phase 2 of the geotechnical and design studies. <br />Recommended changes in the cut configuration would result' <br />in the loss of the diversion channel that is constructed below <br />the toe of the cut. It would be possible to relocate the <br />diversion channel farther to the south below the toe of the <br />proposed buttress; we feel, however, that it might be more ~ <br />acceptable to eliminate the diversion ditch completely and to ~I <br />return to the original drainage pattern. The diversion channel <br />is necessary at present to protect the mine operations against <br />flooding; in the future, after the cessation of the mining <br />GEOMYDiO CONfULiNlf., INC. <br />