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)p -5 <br />From: Hansen, Sidney L - MSHA <br />Sent: Friday, October 30, 2009 1:32 PM <br />To: 'Hernandez, Daniel' <br />Cc: Davis, Allyn C - MSHA; Knepp, William P - MSHA <br />Subject: RE: Proposed Stipulation of DRMS Approval of Twentymile Coal Co Expansion <br />Daniel: <br />We are going to require a minimum barrier pillar dimension between15 Left and the old works. The same holds true for <br />14 Left and 13 Left, for both inby and outby portions, and for 12 Left. The mine has not submitted a plan for that yet. The <br />mine claims that there is at most 30 feet of water head however that amount could create inundation in event of accidental <br />breakthrough. They are performing stability analysis but are not yet finished. Your stipulation might add, <br />"Submit proof to DRMS of MSHA approval of an amended roof control plan as described in the June 3, 2009 <br />letter from Allyn Davis of MSHA to Walter Scheller of Twentymile Coal Company, or a Permit granted by the <br />MSHA District Manager in accordance with 30 CFR 1716-2 granting such mining, prior to entering Gateroad 15 of the <br />Western Mining District of the Foidel Creek Mine." <br />Sid <br />From: Hernandez, Daniel [mailto:Daniel.Hernandez@state.co.us] <br />Sent: Friday, October 30, 2009 11:55 AM <br />To: Hansen, Sidney L - MSHA <br />Cc: Binns, Janet; Nettleton, Jerry <br />Subject: Proposed Stipulation of DRMS Approval of Twentymile Coal Co Expansion <br />Hi Sid - <br />Thanks for talking with me today regarding Permit Revision PR8 from Twentymile Coal Company to expand <br />into the Western Mining District of the Foidel Creek Mine. Per MSHA's letter of June 3, 2009 from Allyn Davis <br />to Walter Scheller, Colorado Group Executive, Twentymile Coal Company, we would like to add the following <br />stipulation to our anticipated Proposed Decision to Approve Permit Revision PR8: <br />Submit proof to DRMS of MSHA approval of an amended roof control plan as described in the June 3, 2009 <br />letter from Allyn Davis of MSHA to Walter Scheller of Twentymile Coal Company prior to entering Gateroad 15 <br />of the Western Mining District of the Foidel Creek Mine. <br />Please let me know, Sid, if MSHA would be OK with this stipulation. <br />Thanks, <br />Dan <br />Danie(I. Hernandez <br />Daniel I. Hernandez <br />Senior Environmental Protection Specialist