25 Pa. Code § 105.233
The removal of sand, gravel or other valuable minerals from submerged lands of this Commonwealth in quantities which are commercially usable or marketable, in conjunction with a channel change or dredging permitted under this chapter, shall be subject to the royalty and agreement provisions of the act of July 31, 1970 (P. L. 699, No. 225) and the act of December 3, 1970 (P. L. 834, No. 275) (71 P. S. § 468) (repealed).
The provisions of this § 105.233 adopted September 26, 1980, effective September 27, 1980, 10 Pa.B. 3843.