Section 672.1 - Mining so as to cause collapse of certain structures or places prohibited; criteria(a) In order to guard the safety of the public in areas above mined areas to prevent the excavation of coal so near the surface, or so deep, or in such other manner as to expose the public to danger, it shall be unlawful for any owner, operator, director or general manager, superintendent or other person in charge of or having supervision over any anthracite coal mine or mining operation so to mine anthracite coal or so to conduct the operation of mining anthracite coal as to cause the caving-in, collapse or subsidence of: (1) Any public building or any structure customarily used by the public as a place of resort, assemblage or amusement, including but not being limited to churches, schools, hospitals, theatres, hotels and railroad stations.(2) Any street, road, bridge or other public passage-way dedicated to public use or habitually used by the public.(3) Any track, roadbed, right of way, pipe, conduit wire or other facility used in the service of the public by any municipal corporation or public service company as defined by the Public Utility Law. (4) Any dwelling or other structure used as a human habitation or any factory, store or other industrial or mercantile establishment in which human labor is employed.(5) Any cemetery or public burial ground.(b) Criterion to guide operators in their mining activities shall include bearing strength of coal in the vein or seam, percentage of coal left in place, uniformity of distribution of said percentage, height of vein or seam, nature of immediate roof over seam, nature of floor of seam, pitch of seam, thickness of rock strata overlying the seam, nature of rock strata thickness and nature of unconsolidated surface materials overlying rock strata, proximity of and conditions in overlying or underlying seams, underground water conditions in seam and underground water conditions in strata over the seam.1961, Sept. 20, P.L. 1538, No. 656, § 1.