27 Pa.C.S. § 8105
(d) Departmental review.— The department shall review each proposed reclamation project and approve the project if the department determines the proposed project:
(3) is not likely to result in water pollution as defined in section 1 of the act of June 22, 1937 (P.L.1987, No.394), known as The Clean Streams Law.
The department shall review each proposed water pollution abatement project and approve the project if the department determines the proposed project is likely to improve the water quality and is not likely to make the water pollution worse.