This bill requires the Secretary of Defense to offer alternative drinking water to households whose private wells are contaminated with perfluorooctanesulfonic acid and perfluorooctanoic acid substances. To be eligible, a household must be downgradient from a military installation, have private well contamination from Department of Defense activities exceeding the Environmental Protection Agency's maximum contaminant level, and be in a community where another household was previously eligible for such assistance. Alternative drinking water can include bottled water, connection to public water systems, or provision of filtration systems for private residences. The Secretary must implement these provisions consistent with the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) and other environmental laws, prioritizing and coordinating efforts to address these contaminants. Exceptions apply if the affected community is already connected to a municipal drinking water system or if the Secretary has otherwise taken action under CERCLA to reduce drinking water exposures to relevant federal or state standards.