((a)) ** In general** Subject to the availability of appropriations, the Administrator shall provide funding to carry out groundwater research on enhanced aquifer use and recharge in support of sole-source aquifers, of which—
((1)) not less than 50 percent shall be used to provide 1 grant to a State, unit of local government, or Indian Tribe to carry out activities that would directly support that research; and
((2)) the remainder shall be provided to 1 appropriate research center.
((b)) ** Coordination** As a condition of accepting funds under subsection (a), the State, unit of local government, or Indian Tribe and the appropriate research center that receive funds under that subsection shall establish a formal research relationship for the purpose of coordinating efforts under this section.
((c)) ** Authorization of appropriations** There is authorized to be appropriated to the Administrator to carry out this section $5,000,000 for each of fiscal years 2022 through 2026.