30 C.F.R. § 71.210 Respirable dust samples; report to operator; posting.
Title 30 - Mineral Resources
(a) The Secretary shall provide the operator with a report of the following data on respirable dust samples as soon as practicable: (1) The mine identification number; (2) The designated work position at the mine from which the samples were taken; (3) The concentration of respirable dust, expressed in milligrams per cubic meter of air, for each valid sample; (4) The average concentration of respirable dust, expressed in milligrams per cubic meter of air, for all valid samples; and (5) The reason for voiding any samples. (b) Upon receipt, the operator shall post this data for at least 31 days on the mine bulletin board.
Title 30: Mineral Resources
PART 71—MANDATORY HEALTH STANDARDS—SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
Subpart C—Sampling Procedures
§ 71.210 Respirable dust samples; report to operator; posting.
