You're kidding, right?
The EPA was all but completely defunded under the Bush Administration. Why do you think they're going after people's pension plans and education and what not? The EPA's already, possibly, the least-funded federal agency out there. They're understaffed and underfunded to a ridiculous extent.
Look at the BP explosion. BP had received upwards of 700 reprimands in the span of a few years with regards to its deep-sea drilling operations, which is more than, like, every other company included. And that includes Exxon.
So, yeah, the EPA is completely toothless here.
Besides, haven't you heard? No one cares about the environment, because the economy's in the crapper and it's apparently impossible to take care of both at once. /sarcasm