We're closer than you may think. I still worry about the EPA regs. Yeah, there's a lot of them there, but they were not put there on a whim. I pointed out the river that runs through my hometown, but do you remember the times (yes, that's multiple) the Cuyahoga River caught fire? From 1868 to the last in 1969, 13 separate fires were reported. The worst in 1952, did over a Million dollars in damages ($1.3 million 1952 dollars which is about $12 million today) The fire of '69 was a bargain, costing about $100K ($666K in today's market) So far, I've only heard of 5 lives lost in the fires, 1912, but that doesn't include injuries. If you worked on a ship on the Cuyahoga back in '69, and fell in, the first thing they did was rush you to the ER because of the contamination.
The EPA regs came about because, in their quest for profit, businesses paid no heed to environmental concerns. Even with that, look at the problem contaminated water caused Flint Michigan a few years ago.
So, who pays for the clean ups? Certainly not the actual polluters nor their shareholders. It falls on the backs of the taxpayers. Not only for the clean up, but for the long term affects. At least 9,000 children will have life long affects from the contaminated water. And it turns out that Flint isn't the only place with this problem.
No, the EPA is needed, because businesses do not want to take the responsibility of the clean up, regardless of what their public relations people tell you.