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<br /> METHANE AND DUST CONTROL I N Oli7RY AREA'S' -- ` ; .' ;' -, ~ . • - -. .. . . ~•-; , <br />(~ 1. Methane Content in Return Aircourse <br />The methane content in any return aircourse, other than an aircourse re- <br />turning the split of air from a working section, shall not exceed 7,0 per- <br />cent. <br />2. Dust Control at Loading and Transfer Points <br />Belt transfer and loading (feeder breaker) points will be equipped with <br />one functional water spray to ensure coal is maintained moist, This spray <br />shall have a minimtm of SO psi water pressure and may be Yenturi or Con- <br />ventional with orifice sizes 1-5. <br />3. Dust Control Along Service Entries <br />These entries will be kept tlamp or well compacted to suppress dust. <br />4. Dust Control Along Active Roadways of Working Areas <br />These active roadways will be kept damp to suppress dust. <br /> <br />~~ <br />i~ <br />• <br />l <br />Initial 11/01/86 <br />