The chromium 6 is being neutralized underground at the Topock PG&E plant, it will no longer be a problem, but rest assured, the PC Nazis will continue to try and make it one.
Everyone on this end of the river gets nervous these days about pollution. Right now Las Vegas wants to put their effluent back into Mead and then into the river... sounds harmless enough until you see test results that find all the drugs people pee out isn't being filtered in the cleaning of the effluent and more and more fish are starting to show the results... I would never touch fish out of Mead or any of our lakes below Mead. I would rather see the effluent used to water their gold courses, lawns, etc... and keep it out of the lake(s).