National Primary Drinking Water Regulations

National Primary Drinking Water Regulations are standards set by the U.S. Environmental Protection Agency (EPA) to ensure drinking water is safe for consumption. They specify maximum allowable levels for harmful contaminants—such as bacteria, chemicals, and metals—to protect public health. Water suppliers must regularly test and treat water to meet these standards, and they provide consumers with reports about water quality. These regulations help prevent illness and long-term health issues caused by contaminated drinking water, ensuring safe and reliable access to clean water for communities across the country.