Conservative government is anti-regulation, anti-enforcement/inspections, and anti-consequences for polluters.
Conservative government is government to benefit special interests, at the expense of the average citizen. It is not 'government of the people, for the people, by the people'.
More than 300,000 people were without water. There is no research that identifies what long term effects -- and therefore costs -- will be for this chemical or most other industrial chemicals.
Now many more hundreds of thousands of people downstream will be affected by this chemical pollution of a river that provides drinking water.
The GOP DOES NOT CARE what losses this inflicts on Americans. It cares ONLY for those in their conservative wealthy donor class. If you get sick and die from their pollution, they ask only that you hurry it up, and die as cheaply as possible, so as not to inconvenience their special interests.