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<br /> <br />Designated Location <br />d. Along Belt Haulage System <br />e. Along Roadways <br />D. Methane and Dust Control Practices at Face Areas <br />1. "Line brattice or any other approved device used to provide venti- <br />Dust Control <br />1, Fresh Air <br />2. Moisture in Coal <br />from Miner Sprays <br />1. Intake Air <br />2. Watering Until <br />Damp or Use of <br />NaCI to Retain <br />Natural Moisture <br />Methane Control <br />1, Fresh Air <br />1. Intake Air <br />lation to the working face f ran which coal is being cut, mined or <br />loaded shall be installed at a distance no greater than 10 feet <br />from the area of deepest penetration, to which any portion of <br />the face has been advanced. <br />2. "A minimum quantity of 3,000 cubic feet a minute of air shell <br />reach each working face from which coal is being cut, mined or <br />loaded." <br /> <br />3. "The minimum mean entry face velocity as specified in Section <br />75.301-4, 30CFR75, shall be 60 feet a minute in all working place• <br /> <br />where coal is being cut, mined, or loaded." <br />4. "The minimum quantity of air reaching the last open crosscut in <br />any pair oP set of developing entries or rooms shall be 12,000 <br />cubic feet a minute. When diesel face haulage equipment is used, <br /> <br />air quantity will be adjusted to comply with manufacturer's in- <br />structions. No pillar extraction is planned during exploration <br />activities. <br />5. The following methane and dust control practices shall be applied <br />to the following areas: <br />• -5- <br />