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67.05 APPLICATION FOR PERMIT FUR Sl1RFACE OR UNOERf,ROl1ND MINING -- MINIMUM REQUIREMENTS <br />FOR OPERATION AND RECLAMATION PLANS. <br />• <br />2.05.1 Objectives <br />No change. <br />2,05.2 Operation Plan -Estimated Area for Life of Operation <br />Nn change. <br />2.05.3 Operation Plan - Permit Area <br />(1) The rock slope entries would he driven on a heading of <br />approximately Nlfi°41 and would connect the existing Or- <br />chard Valley Pine surface facilities to the First West <br />htains being developed from the Orchard Valley 1Jest <br />Mine. The entries would be constructed utilizing a <br />drilling and blasting method, a road header rock miner, <br />or a combination of methods. The entries are designed <br />as either a two or three entry system, depending on <br />short-term ventilation requirements. One of the en- <br />tries would be designated for coal haulage in either <br />case. Entries are projected on 100 foot centers and <br />cross-cuts on 250 to 350 foot centers. These entries <br />will provide long-term coal haulage, increased ventila- <br />• lion capabilities, better access for men and materials <br />and an additional emergency escapeway. <br />Development of the rock slope entries would not affect <br />the permit term or long-term mining plan or sequence. <br />Maps 2-5, 2-11 and 2-12 depict the proposed rock en- <br />tries and mine plans. <br />Ilpon completion of the rock slope entries, CWI would <br />discontinue coal haulage from the Orchard Valley West <br />Mine and re-establish the coal handling facilities at <br />the Orchard Valley Mine. Coal haulage would be by con- <br />veyor belt through the rock slope entries to the exist- <br />ing surface belt facilities. <br />(2)(a) No change. <br />(2)(b) Little additional surface disturbance would he required <br />to face-up the proposed portals in existing cutslopes <br />along the portal level access road. See the Golder As- <br />sociates designs attached. <br />Rock initially extracted from the proposed return por- <br />tal would be utilized as fill to construct a ramp up to <br />the proposed belt and intake portals sites north of <br />Transfer Tower #1. Excess rock extracted from the en- <br />• tries would first be utilized to backfill and seal the <br />ventilation shafts at the Orchard Valley IAine, per 30 <br />7 ~ <br />