What is the purpose of the Disinfectant By Products Rule (DPBR)?

The purpose of the Disinfectant By Products Rule (DBPR) is aimed at decreasing public exposure to chemical disinfectants and their by-products that can form when disinfectants react with naturally occurring organic matter in water. This rule is critical because while disinfectants are essential for killing harmful microorganisms and ensuring water safety, their by-products can pose health risks.

The DBPR establishes standards for the levels of these by-products that are allowed in drinking water and requires water systems to monitor them regularly. This regulatory measure helps to protect public health by minimizing exposure to potential contaminants linked to certain cancers and other health issues, promoting a balance between effective disinfection and safety.

This purpose is distinct from merely eliminating disinfectants from drinking water, which would compromise water safety, or addressing unrelated issues such as regulating water temperature or improving the taste of the water, which do not directly relate to the health risks posed by chemical contaminants.