The Safe Drinking Water Act is a federal law that governs the quality and testing of all drinking water in the United States.

The federal Environmental Protection Agency (EPA) has promulgated regulations for drinking water quality and is charged with overseeing the states, localities, and water suppliers who implement those standards.

In addition, the University of Delaware Water Resources Agency provides water resources planning and policy assistance to Delaware and other states on the eastern seaboard.

Additional links to information and resources are below:

EPA Private Drinking Water Well Resources
United States Environmental Protection Agency (EPA)

EPA regulates public water systems; it does not have the authority to regulate private drinking water wells. Approximately 15 percent of Americans rely on their own private drinking water supplies, and these supplies are not subject to EPA standards, although some state and local governments do set rules to protect users of these wells. Unlike public drinking water systems serving many people, they do not have experts regularly checking the water's source and its quality before it is sent to the tap. These households must take special precautions to ensure the protection and maintenance of their drinking water supplies.

EPA Region 3 Private Drinking Water Well Resources
United States Environmental Protection Agency (EPA)

The quality and protection of drinking water from private and domestic wells is the responsibility of the private and domestic owner of that well. EPA regulates public water systems; it does not have the authority to regulate private drinking water wells. Because many citizens living in rural areas get their drinking water from private and domestic wells, they need to take charge of the maintenance and protection of the their well. In order for a private well to provide safe, clean water it needs to receive adequate testing and inspection, as well as be located, constructed and maintained properly.

EPA Drinking Water from Household Wells Publication
United States Environmental Protection Agency (EPA)

This pamphlet gives you general information about drinking water from home wells (also considered private drinking water sources). It describes types of activities in your area that can create threats to your water supply. It also describes problems to look for and offers maintenance suggestions. Sources for more information and help are also listed.

EPA Citizen Guide to Ground-Water Protection
United States Environmental Protection Agency (EPA)

This guide is intended to help citizens take an active and positive role in protecting their community's ground-water supplies. It introduces citizens to the natural cycle that supplies the earth with ground Water, briefly explains how ground water can become contaminated, examines ways to protect our vulnerable ground-water supplies, and, most important of all, describes the roles citizens and their communities can play in protecting valuable groundwater supplies.