4VAC25-130-819.21. Auger mining; protection of underground mining.
Auger holes shall not extend closer than 500 feet (measured horizontally) to any abandoned or active underground mine workings, except as approved in accordance with 4VAC25-130-816.79.
Statutory Authority
§§ 45.1-161.3 and 45.1-230 of the Code of Virginia.
Historical Notes
Derived from VR480-03-19 § 819.21, eff. December 15, 1981; amended, eff. June 28, 1982; October 28, 1982; December 14, 1982; October 11, 1983; December 27, 1983; May 8, 1984; June 22, 1984; August 2, 1984; October 16, 1985; January 7, 1987; July 22, 1987; November 25, 1987; October 12, 1988; December 26, 1990; July 1, 1991; July 17, 1991; November 20, 1991; July 7, 1992; May 5, 1993; October 19, 1994.