Avion Water officials admit they are very frustrated today over questions about the safety of their water. This after a study is released by a Washington D.C. based environmental group claiming their system has levels of a cancer causing chemical called hexavalent chromium. Avion's system was ranked tenth highest of 35 cities across the nation. “We are telling our customers that according to current standards, our water is safe. When they took this test, it was an incredibly sensitive test. The amount they are looking for is equivalent to three seconds in hundred years.” Avion Water Vice President Jason Wick says the EPA has not yet set a standard for hexavalent chromium. He adds that Avion does test for total chromium levels and results show the system is within standards. Wick says the environmental working group tested from a customer's tap and not directly from the source, which he believes makes the results suspect.