"Toxic wastewater" refers to contaminated water that contains harmful or poisonous substances. It is a type of water that is unsafe for humans, animals, and the environment. Full definition
We report on contamination from the millions of gallons of toxic wastewater generated each day by tar sands mines. (nrdc.org)
It was only after deep injection disposal wells used to house fracking's toxic wastewater went into operation that the earthquakes started. (desmogblog.com)
«With a saturated glycerol market, traditional approaches see producers pay hefty fees to have toxic wastewater hauled off to treatment plants,» she said. (sciencedaily.com)