; and (B) the means by which the proposed nitrate or arsenic reduction project would meaningfully reduce the concentration of nitrate or arsenic in water provided for human consumption by the applicable public water system. (3) Priority application In providing grants under this subsection, the Administrator shall give priority to an eligible entity that the Administrator determines, based on affordability criteria established by the State under section 1452(d)(3), to be a disadvantaged community and— (A) has not been in compliance with the maximum contaminant level of nitrate or arsenic, as applicable, at any time during the 3-year period preceding the date of submission of the application of such eligible entity; or (B) proposes to address nitrate or arsenic levels, as applicable, in water for human consumption at a school, daycare, or other facility that primarily serves children or other vulnerable human subpopulation described in section 1458(a)(1). (4) Low-income assistance An eligible entity may use a grant provided under this subsection to purchase and install treatment technology that reduces the amount of nitrate or arsenic, as applicable, in drinking water, with first priority given to assisting disadvantaged communities based on the affordability criteria established by the applicable State under section 1452(d)(3), low-income homeowners, and landlords or property owners providing housing to low-income renters. (c) Limitation on use of funds Not more than 4 percent of funds made available for grants under this section may be used to pay the administrative costs of the Administrator. (d) Authorization of appropriations There is authorized to be appropriated to carry out this section— (1) $15,000,000 for fiscal year 2025