32 Pa. Stat. § 693.27
The act of March 23, 1803 (P.L. 389, No. 140) , entitled "An act to authorize any person or persons owning lands adjoining navigable streams of water, declared public highways, to erect dams upon such streams, for mills and other water-works."
Sections 7 and 8 of the act of June 8, 1907 (P.L. 496, No. 322) , entitled "An act to establish a Board of Commissioners of Navigation for the river Delaware and its navigable tributaries; regulating their jurisdiction over ships, vessels, and boats, and wharves, piers, bulkheads, docks, slips, and basins; and exempting cities of the first class from certain of its provisions; and making an appropriation therefor."
The act of June 25, 1913 (P.L. 555, No. 355) , entitled "An act providing for the regulation of dams, or other structures or obstructions, as defined herein, in, along, across, or projecting into all streams and bodies of water wholly or partly within, or forming part of the boundary of, this Commonwealth; vesting certain powers and duties in the Water Supply Commission of Pennsylvania, for this purpose; and providing penalties for the violation of the provisions hereof."
32 P.S. § 693.27