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COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department o' Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />June 15, 2016 <br />Interoffice Memo <br />New Horizon North Mine (Permit No. C-2010-089) <br />Permit Revision No. 1 (PR -01) <br />I have reviewed New Horizon North Mine's (NHN) Section 2.05.3 (3) for PR -01 to ensure <br />compliance for Rules 2.05.3(3)(c) and 4.03.1 and have the following comments: <br />Rule 2.05.3(3)(c) <br />Rule 2.05.3(3)(c) requires a description of each road, conveyor, or rail system to be constructed, <br />used or maintained within the proposed area. There are no conveyors or rail systems associated <br />with NHN's proposed PR -01 and these sections of Rule 2.05.3(3)(c) do not apply. <br />Road discussions in NHN's proposed PR -01 begin on page 5 of Section 2.05.3(3) are broken into <br />four sections — haul roads, access roads, light use roads and county roads. Discussions for NHN's <br />haul roads begin in Section 2.05.3(3), page 5, access roads in Section 2.05.3(3), page 9, light use <br />roads in Section 2.05.3(3), page 12, and county roads in Section 2.05.3(3) page 12. Related maps <br />and attachments associated with PR -01 are Map 2.05.3(3)-1 and 2.05.3(3)-3. Supporting road <br />drainage calculation have been provided in Appendix 2.05.3(3)-l. Please refer to Sections <br />4.03.1(1)-(5), 4.03.2(1)-(5) and 4.03.3(1)-(5) of this review memo for additional details <br />regarding design criteria for roads. <br />Two haul roads are being proposed in NHN's PR -01. Associated certifications for each haul road <br />have not been submitted with this revision because they have not been constructed as of yet. <br />Please refer to Rule 4.03.1 section of this memo for additional information. <br />Access roads are not required to be certified by a professional engineer unless alternatives to the <br />design criteria and specifications of Rules 4.03.2(3) are approved and utilized. There are no <br />alternative design criteria and specifications being proposed under PR -01 for access roads. Light <br />use road certifications are not a requirement of Rules 4.03.3. Rule 4.03.2(e), which allows for <br />alternative design criteria for access roads, is not applicable for the proposed NHN PR -01. <br />All topics and discussions required under Rule 2.05.3(3)(c) have been provided in NHN's PR -01. <br />I have no adequacy questions regarding the above mentioned Rule. <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http: //mining. state. co. us <br />John W. Hickentooper, Governor I Mike King, Executive Director ( Virginia Brannon, Director <br />