Eligible Site Rehabilitation Costs. The Department may reimburse a residential owner of a residential heating oil tank system for eligible site rehabilitation costs incurred in performing the following activities if the Department determines they are cost effective, reasonable, and consistent with an application received on or after July 1, 2005: Soil treatment, including: Excavation, transportation, and proper disposal of oil-contaminated soil; or On-site treatment, such as soil vapor extraction; Procurement and installation of groundwater remediation equipment, including soil vapor extraction equipment; Subsurface investigation, well bailing, recovery system design, operation, monitoring, or a combination of these activities; Private supply well replacement; Odor abatement activities, such as forced venting and oil saturated material removal and proper disposal, replacement, or restoration to a degree as determined by the Department to return a residence to a habitable condition; Closure of a heating oil tank by removal, if the Department determines removal of the heating oil tank is necessary to accomplish soil treatment as described in §A(1)(a) of this regulation; and Other site rehabilitation activities performed by a residential owner under the direction and approval of the Department to remediate a spill, release, or discharge of oil from a residential heating oil tank system. Ineligible Costs. The Department may not reimburse a residential owner of a residential heating oil tank system for costs incurred in performing the following activities: Closure in place of an underground residential heating oil tank; Installation of a new or replacement residential heating oil tank; Third-party contractor mobilization or demobilization of equipment, materials, and personnel at a site; Preparation of a complete application, including preparing or obtaining support documentation; and Performance of activities that are not related to remediation of oil-contaminated soil, groundwater, or surface water at a site so as to mitigate threats to public health, safety, and welfare or the environment, as determined by the Department.