The following words and phrases when used in this act shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Authority." The Pennsylvania Infrastructure Investment Authority.
"Board." The board of directors of the Pennsylvania Infrastructure Investment Authority.
"Eligible cost." The cost of all labor, materials, necessary operational machinery and equipment, lands, property, rights and easements, plans and specifications, surveys, estimates of costs and revenues, prefeasibility studies, engineering and legal services and all other expenses necessary or incident to the acquisition, construction, improvement, expansion, extension, repair or rehabilitation of all or part of a project.
"Grant." The award and distribution of funds for eligible costs by the Pennsylvania Infrastructure Investment Authority if repayment is not required.
"Municipality." A county, city, borough, incorporated town, township, home rule municipality and any municipal authority responsible for the provision of drinking water or sewage treatment services to any of them.
"Nutrient." Nitrogen or phosphorus.
"Nutrient credit." The unit of compliance that corresponds with a pound of reduction of a nutrient and that has been approved by the Department of Environmental Protection.
"Project." The acquisition, construction, improvement, expansion, extension, repair, rehabilitation or security measures of all or part of a facility or system for:
32 P.S. § 695.3