(a) Other laws superseded.--The authority contained in this act shall apply to every publicly owned treatment works authorized by law to enforce an approved pretreatment program and shall supersede any limitation in a municipal law or a home rule charter as to the maximum amount of penalty that would otherwise apply under existing law.

(b) Uniform penalty.--This act shall not be construed to modify jurisdiction or procedures for the assessment or collection of fines and penalties by municipalities or publicly owned treatment works. It shall have the sole effect of making the penalty provided for in this act uniformly available to publicly owned treatment works.