(a) General rule. -- Except as specifically provided in subsections (b) and (c) of this section, an eligible landowner who provides access to the land, without charge or other consideration, which results in the implementation of a reclamation project or a water pollution abatement project:

(1) Is immune from liability for any injury or damage suffered by persons working under the direct supervision of the project sponsor while such persons are within the project work area;

(2) Is immune from liability for any injury to or damage suffered by a third party which arises out of or occurs as a result of an act or omission of the project sponsor which occurs during the implementation of the reclamation project or the water pollution abatement project;

(3) Is immune from liability for any injury to or damage suffered by a third party which arises out of or occurs as a result of a reclamation project or a water pollution abatement project;

(4) Is immune from liability for any pollution resulting from a reclamation project or water pollution abatement project;

(5) Is immune from liability for the operation, maintenance or repair of the water pollution abatement facilities constructed or installed during the project unless the eligible landowner negligently damages or destroys the water pollution abatement facilities or denies access to the project sponsor who is responsible for the operation, maintenance or repair the water pollution abatement facilities.

(b) Duty to warn. -- The eligible landowner shall warn the project sponsor of known, latent, dangerous conditions located on the project work area which are not the subject of the reclamation project or the water pollution abatement project. Nothing in this article shall limit an eligible landowner's liability which results from the eligible landowner's failure to warn of such known, latent, dangerous conditions.

(c) Exceptions to immunity. -- Nothing in this article may limit an eligible landowner's liability which results from a reclamation project or water pollution abatement project and which would otherwise exist:

(1) For injury or damage resulting from the landowner's acts or omissions which are reckless or constitute gross negligence or willful misconduct.

(2) Where the landowner accepts or requires consideration for allowing access to the land for the purpose of implementing a reclamation project or water pollution abatement project or to operate, maintain or repair water pollution abatement facilities constructed or installed during a water pollution abatement project.

(3) For the landowner's unlawful activities.

(4) For damage to adjacent landowners or downstream riparian landowners which results from a reclamation project or water pollution abatement project where written notice or public notice of the proposed project was not provided.