Any person violating any of the provisions of this act shall be liable to a penalty of $300 in a summary proceeding. Any violation of the act by an officer, agent or employee shall also be a violation of the act by his employer if such employer had knowledge of and actual control over the cause of such violation. Where the violation is of a continuing nature each day during which it continues, shall constitute an additional, separate and distinct offense.
43 P.S. § 26-6