I'd go for arresting those responsible if possible. Not sure whether they currently would get out as governmentally immune; if so it would be ex post facto to fix that for them, although we could use this 'crisis' to fix that loophole for their next screw up. I'd love to see EPA disbanded. I was against Nixon in '68, though too young to vote Reagan then, mostly because I foresaw his domestic liberalism. There probably should be state level regulations at some level. Let the states compete to find the appropriate level. However you're not going not accomplish that dream until after 2016 election, at best. Taking it out of EPA bonuses probably would get past the GOPe. It would take a lot of screaming to get it past the Union side of the Rats, although if you get enough of the Green Rats mad it might either pass, or at worst make an excellent campaign issue for our side.
As for using the entire EPA budget to fund health remediation I can neither imagine the resulting health issues will be nearly that expensive, nor would I want to leave that huge a budget within federal control. Returning the federal EPA budget to the taxpayers should be the long term goal, with the states subtracting whatever, likely smaller share, is really needed for environmental regulation at their level.
Here is what has to be done. The local county or citizens have to hire a private expert to come in and test that stuff for them.
The lies are already starting and the finger pointing is starting.
I will bet the Navajo nation is doing that right as of now.
I voted for Barry Goldwater. Did not vote in the elections after...till Reagan.