52 Pa. Stat. § 3306
It shall be the duty of the architects, engineers or other persons preparing specifications for construction projects, which specifications include the requirement that the construction contractor supply fill for the project, to include, within the specifications, a specific reference to this act and the regulations pertaining to this act adopted by the department. If such a reference is omitted from the specifications and reclamation and planting of the land from which the fill was removed by the construction contractor is required under this act, any contract based on the specifications may be amended, at the option of the construction contractor, to allow a reasonable price for the reclamation and planting of the land affected in accordance with a plan acceptable to the secretary.
52 P.S. § 3306