Chloramines are disinfectants added to the water for public health protection and are most commonly formed when ammonia is added to chlorine to treat drinking water. Chloramines provide long-lasting protection, as chloramines are more stable than free chlorine.
There are different types of chloramines, including monochloramine, dichloramine, trichloramine and organic chloramine. Monochloramine is the most common form used to disinfect drinking water and is the form that will be used in Tulsa's water distribution system.
The Environmental Protection Agency (EPA) approves the use of chloramines as a disinfectant in drinking water. The maximum concentration of chloramine allowed in drinking water is 4 ppm (mg/l).
Chloramine History and Usage
Chloramine has a long history of effective use in city water treatment systems. Here are a few facts: