Total coliform is an indicator that other disease-causing organisms (pathogens) could be in the water and could potentially affect people's health. The settlements require the airlines to regularly monitor aircraft water systems; notify EPA and the public when tests reveal contamination; and regularly disinfect aircraft water systems and water transfer equipment. The orders also require each airline to study possible sources of contamination from outside of the aircraft.
Passengers with compromised immune systems or others concerned may want to request canned or bottled beverages. EPA will update its information and advice to the traveling public as soon as new information is available at http://www.epa.gov/ airlinewater.