Maryland Code, Environment § 7-220

(1) All costs incurred by the State for removal, restoration, or remedial action, including the restoration of natural resources where feasible, and site maintenance and monitoring in response to a release or threatened release of any hazardous substance, to the extent the costs are not reimbursable under the federal act;

(2) All cost incurred by the State in monitoring and assessing the effect on public health and natural resources of any site at which a hazardous substance is or may be present, including the costs of any subsurface borings and any analysis of samples taken, the costs of investigations conducted for the purpose of defining necessary remedial action, and the costs of litigation expenses incurred in obtaining reimbursement for expenditures;

(3) The State share mandated under § 104(c)(3) of the federal act;

(4) All cost incurred in providing public information concerning a site that does or may contain a hazardous substance; and

(5) Costs resulting from releases or threatened releases of hazardous substances whether or not the hazardous substance was placed at the site, released, or threatened to be released before July 1, 1985.