Pennsylvania Statutes Title 43 P.S. Labor § 156. Penalty for violation

Every contract for the construction, alteration or repair of any public work or improvement, founded on specifications containing any such stipulation for minimum wage or wages, shall stipulate a penalty of an amount equal to twice the difference between the minimum wage contained in said specifications, and the wage actually paid to each laborer or mechanic for each day during which he has been employed at a wage less than that prescribed in said specifications.