Eligible costs include:

1. (1) Costs approved by the Board which are necessary for construction of public sewerage facilities.
2. (2) Costs approved by the Board which are necessary for construction associated with secondary treatment or advanced treatment, or both.
3. (3) Costs approved by the Board which are necessary for construction associated with cost-effective alternatives to secondary treatment or advanced treatment, or both.
4. (4) Costs approved by the Board which are necessary for the construction of interceptor sewers.
5. (5) Costs approved by the Board which are necessary for construction associated with the correction of an infiltration/inflow problem.
6. (6) Costs approved by the Board which are necessary for construction associated with the rehabilitation or replacement of collector sewer systems only when the applicant demonstrates that the collector sewer system is necessary to assure the total integrity of the sewerage system.
7. (7) Costs approved by the Board which are necessary for construction of new collector systems only when the applicant demonstrates that sufficient treatment capacity exists.
8. (8) Costs associated with the completion of the second opinion project review required under § 965.7 (relating to second opinion project review).
9. (9) Other eligible costs as defined under § 963.1 (relating to definitions) which are approved by the Board, except that costs associated with the purchase of land for rights of way or easements under the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970 (42 U.S.C.A. § § 4601—4655), are not eligible.

10. (10) Costs associated with the refinancing of local debt incurred after March 5, 1985, only when the applicant demonstrates the following:

    1. (i) The construction started after March 5, 1985, but before March 1, 1988.
    2. (ii) The original debt was incurred to comply with a State or Federal compliance schedule.
    3. (iii) The project has met the requirements of the Water Quality Act.
    4. (iv) The project has undergone an environmental review as required by the Department.
11. (11) Costs associated with the refinancing of local debt incurred after March 1, 1988, only when the applicant demonstrates that it meets the requirements of § 963.17 (relating to funding limitations).
12. (12) Costs approved by the Board which are necessary for the implementation of a nonpoint source project or estuary protection project.