Regulatory agencies, such as the United States Environmental Protection Agency (EPA), have established guidelines and standards to control the levels of chlorinated by-products in drinking water. The EPA's Stage 1 and Stage 2 Disinfectants and Disinfection Byproducts Rules set maximum contaminant levels (MCLs) for total trihalomethanes (TTHMs) and haloacetic acids (HAA5). These regulations aim to minimize exposure to potentially harmful concentrations of DBPs and protect public health.
