1987-12-01_PERMIT FILE - C1981017 ‎(110)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Doc Name: Mine Portal Areas
• Section_Exhibit Name: Chapter II Attachment 1 to Appendix II-B-7
• Media Type: D
• Archive: No

CQNCLI;SIUt�'S
Sedimentation and drairiige control structures have been designed for ivdnes
3, 4, and S. Existing str'.ict.ires at r'drles 3 and 4 are providing a mans to
manage sedire-rit storage and to i.-q)rove water qLiality. The proposed sedi_wxitaticn
structure will enable the operator Mid-Continerit Re`o ces, Inc to -neet state
and Federal regaul ati.csns.
Construction of the prroposed i=rovErjents will rec1Tuire substamnt i.al eticxvation
of previously undisturbed slopes. _Such construction of ponds w;i.l in at least
one case cz-iLse m.ssive slope failure (Mine- 4).
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