would amend the SDWA to require the Administrator of EPA to publish a maximum contaminant level goal and promulgate a national primary drinking water regulation for total per- and polyfluoroalkyl substances.

would amend the SDWA to require the Administrator of EPA to publish a maximum contaminant level goal and promulgate a national primary drinking water regulation for total per- and polyfluoroalkyl substances.

would amend the SDWA to require the Administrator of EPA to publish a maximum contaminant level goal and promulgate a national primary drinking water regulation for microcystin toxin.

would amend the SDWA to require the Administrator of EPA to publish a maximum contaminant level goal and promulgate a national primary drinking water regulation for perchlorate.