Airline Water: Which Airline’s Water Is Safest?
New Study rates health of water provided to passengers
A 2019 Airline Water Study released by DietDetective.com and the Hunter College NYC Food Policy Center reveals that the quality of drinking water varies by airline, and many airlines have possibly provided passengers with unhealthy water.
Unhealthy water violates the federal government’s Aircraft Drinking Water Rule (ADWR), which was implemented in 2011 and requires airlines to provide passengers and flight crew with safe drinking water.
The 2019 Airline Water Study ranks 10 major and 13 regional airlines mainly by the quality of water they provided onboard its flights. Each airline was given a “Water Health Score” (5 = highest rating, 0 = lowest) based on 10 criteria, including fleet size, ADWR violations, positive E. coli and coliform water sample reports and cooperation in providing answers to water-quality questions. A score of 3.0 or better indicates that the airline has relatively safe, clean water.
Alaska Airlines and Allegiant win the top spot with the safest water in the sky, and Hawaiian Airlines finishes No. 2, The airlines with the worst scores are JetBlue and Spirit Airlines, the study shows. Except for Piedmont Airlines, regional airlines need to improve their onboard water safety,
The ADWR requires airlines to take samples from their water tanks to test for coliform bacteria and possible E. coli. Airlines are also required to disinfect and flush each aircraft’s water tank four times per year. Alternatively, an airline may choose to disinfect and flush once a year, but then it must test monthly. (See: Electronic Code of Federal Regulations).
The 2019 Airline Water Study also finds that the Environmental Protection Agency – one of the federal agencies responsible for ensuring safe aircraft drinking water– rarely levies civil penalties to airlines in violation of the ADWR.
Here are the study’s findings:
Airline Water Health Scores At-a-Glance (5 = highest rating, 0 = lowest):
Alaska Airlines: 3.3, Allegiant Air: 3.3, Hawaiian Airlines: 3.1, Frontier Airlines: 2.6, Southwest Airlines: 2.4, Delta Air Lines: 1.6, American Airlines: 1.5, United Airlines: 1.2, JetBlue: 1, Spirit Airlines: 1
Piedmont Airlines: 4.33, Sun Country Airlines: 2.78, Envoy Air: 2.11, GoJet Airlines: 2, Trans States Airlines: 1.78, Compass Airlines 1.22, PSA Airlines: 1.22, SkyWest Airlines 1.11, Endeavor Air: 0.78, Air Wisconsin Airlines: 0.68, ExpressJet Airlines: 0.56, Republic Airways: 0.44