Drinking Water Protection

The federal government protects drinking water for all Americans through regulations, funding programs, and partnership initiatives. The Environmental Protection Agency (EPA) administers multiple grant programs and financial resources to help public water systems improve water quality, modernize infrastructure, and comply with the Safe Drinking Water Act. Understanding these programs—from the Drinking Water State Revolving Fund to emerging contaminant initiatives—helps communities and water utilities access critical support for protecting drinking water supplies. Learn more about how these efforts connect to broader U.S. Water Quality and Safety standards and EPA oversight.

Federal Funding and Infrastructure Support

The EPA provides grants and low-interest loans through several programs to help water systems upgrade facilities, address contamination, and improve service reliability. The Drinking Water State Revolving Fund (DWSRF) is a federal-state partnership offering financial support to water systems and state safe water programs. The Water Infrastructure Improvements for the Nation Act (WIIN) includes grants targeting lead reduction in schools and child care facilities, as well as support for small, underserved, and disadvantaged communities.

Protecting Water Sources and Addressing Contaminants

Source water protection prevents contamination before treatment is needed, reducing costs and health risks. The EPA works with states, tribes, utilities, and local partners through a multi-barrier approach that includes selecting the best water sources, preventing contamination, using effective treatment, and maintaining quality through distribution systems. Targeted initiatives address lead in drinking water and emerging contaminants like PFAS through grant programs that fund testing, infrastructure improvements, and treatment projects in vulnerable communities.

Public Water System Oversight

The EPA funds state, territorial, and tribal Public Water System Supervision programs to ensure Safe Drinking Water Act compliance. Programs like the Drinking Water System Infrastructure Resilience and Sustainability Program help systems prepare for natural hazards, extreme weather, and cybersecurity threats, ensuring safe water operations under challenging conditions.