Thought that last cup of water the flight attendant served you tasted a tad funny? Well, hopefully you'll no longer have to question that agua aftertaste, thanks to new rules set into place by the Environmental Protection Agency (EPA) earlier this week. Airlines will now be issued schedules for how often the water they serve their passengers (as well as the water supply for the lavatories) must be tested for coliform bacteria, which in itself is not harmful, but is an indicator of disease-causing bacteria. The new tests are affecting 63 airlines and costing $7 million – in our opinion, a small price to pay to wash away in-flight water woes for the traveling masses.