We don't know yet how much sludge or gallons of waste water will be generated, nor do we know the chemical content.
Some current concerns come from a book.
According to the most recent tally, forty possible carcinogens appear in drinking water, sixty are released by industry into ambient air, and sixty-six are routinely sprayed on food crops as pesticides. Whaever our past exposures, this is our current situation. Each of these diagnoses is a border crossing, the beginning of an unplanned and unchosen journey. There is a story behind each one. If lung cancer is excluded, overall incidence still rose by 35 percent.