What is the purpose of primary drinking water standards?

The purpose of primary drinking water standards focuses on the protection of public health through the prevention of illnesses that can be caused by contaminated drinking water. These standards set the maximum permissible levels of contaminants in water supplies, ensuring that drinking water is safe for consumption. They are essential in safeguarding the population from waterborne diseases and other health risks associated with exposure to harmful substances.

Primary standards are typically based on scientific evidence and health risk assessments and cover a wide range of potential contaminants, including microbials, chemicals, and radionuclides. This preventive approach is critical because high levels of certain contaminants can lead to serious health issues, including gastrointestinal illnesses, reproductive problems, and neurological disorders. Therefore, the establishment and enforcement of primary drinking water standards are vital for maintaining public health and ensuring safe drinking water for all.