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== TerraMatrix <br />Engineering & Environmental Servicet: <br />1475 Pine Grove Road • PO Box 774018 <br />Steamboat Springs, Colorado 80477 <br />303-679-6260 •fax 303-879-9048 <br />III IIIIIIIIIIIIIIII <br />999 <br />November 16, 1993 A[` <br />~~Ei~Fn <br />tio~1 <br />Ms. Shawn E. Smith n. ~' 19,9 <br />i.•~; , <br />Denver,eCo orado 80203om 21~ ca U'1cpe~~~s a GNC` , , <br />Re: EFCISouthfield Mine (Permit No. C-S1-014), Permi[ Mid-Term AdequacyResponses (Set <br />II, Technical Revision TR-15) <br />Dear Ms. Smith: <br />Accompanying this transmittal letter are responses to the most recent set of Mid-Term Review <br />comments for the Southfield Mine Permit as outlined in your letter of September 14, 1993. This <br />submittal package also includes revised permit materials and other supporting documentation <br />as referenced in the Mid-Term Responses. <br />Mid-Term Responses are provided in a comment/response format to facilitate your review. In <br />addition, the revised permit materials and other ruppotting documentation included as part of <br />this submittal are identified and instruttions for placement in the permit document are provided <br />by the attached Summary of Revisions/Additions. <br />In developing the accompanying responses and supporting materials, we have tried to provide <br />for final resolution of all issues to the extent reasonably possible. There are, however, a few <br />issues which because of practical time constraints or lack of concurrence between the DMG and <br />EFCI will require further discussion to reach mutually acceptable resolution. As noted in the <br />responses, it may be appropriate for the DMG to stipulate the mechanism for resolution of the <br />following issues: <br />Adequay Item No. 11 -North mine dewa[ering well permit isrues <br />Adequacy Item No. 25 - As-built cettifications for al] existing sedimentation ponds <br />Adequacy I[em No. 34 - Modification of mine disturbance area based on subsidence angle <br />of draw <br />Steamboat Springs, CO • Denver, CO • Seattle, WA • Juneau, AK • Santiago, Chile SA <br />