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Code of Federal Regulations
Title 30 - MINERAL RESOURCESChapter I - MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABORSubchapter K - METAL AND NONMETAL MINE SAFETY AND HEALTHPart 57 - SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINESSubpart T - SAFETY STANDARDS FOR METHANE IN METAL AND NONMETAL MINES
VENTILATION
Section 57.22237 - Actions at 2.0 to 2.5 percent methane in bleeder systems (I-A and III mines)

30 C.F.R. § 57.22237

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Current through November 30, 2024
Section 57.22237 - Actions at 2.0 to 2.5 percent methane in bleeder systems (I-A and III mines)

If methane reaches 2.0 percent in bleeder systems at the point where a bleeder split enters a main return split, mining shall not be permitted on ventilation splits affected by the bleeder system. If methane has not been reduced to less than 2.0 percent within 30 minutes, or if methane levels reach 2.5 percent, all persons other than competent persons necessary to take corrective action shall be withdrawn from affected areas.

30 C.F.R. §57.22237