Where the geology is not right, the fluids have to be treated at a waste(sewer) treatment facility and then released into the river.
...and both are HIGHLY regulated, and often, gov't-run operations! So, if there is any contamination created, it is by your benevolent protectors.
1. You can go to court and maybe the judge will change or delay the regs
2. You can try to get the regs changed. Either thru local, state, and/or federal govt, depending on who has the authority. Its pretty easy to do this if you have enough money.
So what we see with these fracking fluids is that some companies are publishing their formulas. That the states are going to require the formulas be published , excepting particular compounds that are proprietay. And the feds are going to require publication on federal lands and waters.
Also keep in mind that these compounds are already being published and have been published for a long time within OSHA workplace safety documents at the job site. Material Safety Data Sheets.
They may try to say these fracing fluids are propritary but I can guarantee you that a chemist who has access to the competitors product data sheet and Material Safety Data Sheet can match the formula.