Public Water Systems, Disinfection Byproducts, and the Use of Monochloramine

Answers to questions regarding public water systems, disinfection byproducts, and the use of monochloramine.

• Why are disinfection byproducts a public health concern? (pdf) (28.9 KB)
  Explains potential risks of disinfection byproducts and how EPA considers these risks when establishing water disinfection regulations
• How does EPA regulate disinfection byproducts (DBPs)? (pdf) (34.09 KB)
  Explains how EPA uses DBP limits and research to regulate DBPs
• How do the kinds and concentrations of disinfection byproducts formed by monochloramine compare to those formed by chlorine? (pdf) (34.16 KB)
  Explains the kinds and concentrations of disinfection byproducts formed from monochloramine compared to those formed by chlorine
• Why are water utilities switching to monochloramine? (pdf) (35.08 KB)
  Provides various reasons why water utilities are switching to monochloramine to treat water
• Other than chlorine and monochloramine, what options could water utilities consider to control the levels of disinfection byproducts? (pdf) (33.21 KB)
  Provides several alternatives to chlorine and monochloramine to control the level of disinfection byproducts in water
• Does EPA require water utilities to use monochloramine? Who approves the decision for a water utility to use monochloramine? (pdf) (29.34 KB)
  Explains how EPA does not require water utilities to use a specific treatment process and how state agencies or other authority approve changes in disinfection processes
• What assistance does EPA provide to water utilities that are considering a switch from chlorine to monochloramine? (pdf) (30.8 KB)
  Explains how EPA provides regulatory guidance and training to help water utilities that are considering a switch from chlorine to monochloramine