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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of NaLLnal Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80'_03 DIVISION O F <br />Phone: (3031 866-3567 ~ MINERAL $ <br />FAX: 1303)832-8106 & <br /> GEOLOGY <br /> Internal Memorandum R E C L A M A T I O N <br /> MINING•SAFETY <br />Bill Owens <br />TO: Byron Walker envermr <br />FROM: Sand Brown ereRE Wzl~ne~ <br />Y Eaecnrn,e oneuor <br />DATE: February 22, 2000 ~t~~nael a nnnA <br />RE: TR-32, Proposed Elk Creek Mine Facilities, Sanbom Creek Drvisinn onecmr <br />Oxbow Mining, Inc. <br />As we discussed today, I would like you to review several aspects of the TR-32 submittal <br />for the Elk Creek Mine famcilities at the Sanbom Creek mine submitted by Oxbow Mining <br />Inc. (OMI). Specifically, I would like you [o review the Ybllowing information. <br />The responses to Jim Pendleumn's Geotechnical Stability memo dated September <br />30, 1999 regarding the stability of the Elk Creek Portal Fill, the Soil Stockpile <br />above Elk Creek Portal Bench, the Surface Water Diversion -Elk Creek Borrow <br />Area. and the Post Mining Retention of Elk Creek Culvert. These are questions <br />numbered 1., 2., 3. and 4. in the attached responses. <br />2. OMI has revised the plan since Jim P. reviewed the submittal. A second till is <br />proposed to the north of the entry fill. Please review this fill for the geotechnical <br />issues. <br />3. OMI is proposing [o construct a pond on the Elk Creek facilities fill at the mouth <br />of [he canyon. Please evaluate the stability of this proposal. <br />4. OMI is proposing to extend a haul road up Elk Creek. Please take a look at the <br />geotechnical issues associated with the road. A road profile is included on <br />Drawing 2.05-M3 which was submitted later than the other packet of information. <br />I have attached a copy of the response Montgomery Watson submitted on January 24, <br />2000 which includes the geotechnical issues. A second hydrology packet, Exhibit 2.05- <br />E3 was submitted in February. (Joe Dudish is reviewing all the surface water hydrology <br />calculations.) This packet includes an updated General Facilities Map, 2.05-M1 and the <br />haul road profile. If there is a reference [o earlier submittals, please see me and I will get <br />you the information you might need. <br />Thank-you for your assistance with this project. <br />Attachments <br />