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Designated Location Dust Control Methane Control <br />Face Areas <br /> <br />a. Continuous Miner <br />1. Water sprays <br />2. Line brattice or <br />auxiliary fan <br />1. Intake Air <br />2. Methanometer <br />3. Line brattice or <br />auxiliary fan <br />1. Intake air <br />2. Line brattice or <br />auxiliary fan <br />b. Roof Bolter <br />c. Shuttle Car <br />Haulage Roads <br />1. Vacuum dust col- <br />lection or water <br />through the steel <br />2. Line brattice or <br />auxiliary fan <br />1. Watering until <br />damp <br />1. Intake air <br />2. Line brattice <br />d. Auxiliary Fan 1. Rock dust added 1. Fresh air <br />Discharge to discharge air <br />stream <br />6. "Sprays indicated for dust suppression on each piece of equipment <br />shall be maintained and operated at the indicated water pressure <br />and flow rate as follows:" <br />Minimum Minimum <br />• *No. of Sprays *Min. No. of Sprays Water Flow <br />_ Equipment Type on Equipment in operation Pressure Rate <br />Continuous <br />Miner - NMS 41 <br />Marietta 5012 **(32 Min.) 28 100 22 <br />*Additional sprays which may be added to test possible benefits of different <br />spray types and configurations are not to be included in these totals. <br />**The number of available sprays will be symmetrically reduced to no less than <br />this minimum. Spray will be maintained so that no greater than four (4) of <br />the available sprays are inoperative. <br />NOTE: The pressure required is the actual operating pressure and will be <br />measured at the first spray in the system. <br />7. All dead ended entries, idle working faces and working faces where <br />roof bolting is being done will be ventilated by exhausting auxiliary <br />fans and tubing or line brattice to within ten feet of the face. <br />8. All methane tests will be conducted at a point not less than 12 <br />inches from the roof, face or rib. The examiner shall not expose <br />-6- <br />