Next Up for EPA: Ensuring Clean Drinking Water on Airline Flights

Environment News Service. Posted October 8, 2009.

The U.S. Environmental Protection Agency today published a final rule to ensure that safe and reliable drinking water is provided to aircraft passengers and crew. The rule requires airlines to have their water systems inspected at least once every five years, report the test results to the EPA and fix any "significant deficiencies."

The Aircraft Drinking Water Rule issued today was prompted by an EPA inspection in 2004 that found all aircraft public water systems were out of compliance with the national primary drinking water regulations.

The new rule provides multiple-barrier protection through requirements for coliform sampling, best management practices, corrective action, public notification, monitoring and operator training, in accordance with the Safe Drinking Water Act.

The EPA rule applies to the aircraft's onboard water system only. The rule will better protect the public from illnesses caused by microbiological contamination, the agency says.

"This rule is a significant step forward in protecting people's health when they travel," said Peter Silva, assistant administrator for EPA's Office of Water. "EPA has taken this step to make sure the public has drinking water that meets standards, both in the air and on the ground."

Still, the agency advises that passengers with compromised immune systems or anyone else who is concerned may want to request canned or bottled beverages and avoid drinking coffee, tea, and other drinks prepared with tap water.

All U.S. airlines must test and report the cleanliness of their drinking water systems once every five years. (Photo credit unknown)

The EPA assumes that air carriers will pass on some or all of the costs of the new regulation to their passengers in the form of ticket price increases.

EPA estimates that 708.4 million passengers travel each year on aircraft that are affected by the Aircraft Drinking Water Rule.

EPA estimates air carriers' total annualized cost to implement the final rule to be about $6.95 million. Doing the math, EPA calculates that passengers could face a price increase of about one cent per ticket.

The new final rule requires that each air carrier must conduct a self-inspection of each aircraft water system no less frequently than once every five calendar years. Reporting the results of those inspections to the EPA will begin 18 months from today.

To facilitate collection and analysis of aircraft public water systems data, EPA is developing an Internet-based electronic data collection and management system.

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