ef·flu·ent ˈeflo͞oənt/ noun noun: effluent; plural noun: effluents liquid waste or sewage discharged into a river or the sea. "the bay was contaminated with the effluent from an industrial plant" synonyms: (liquid) waste, sewage, waste water, effluvium, outflow, discharge, emission
I was going to bring that up also but figured the author knew what he was writing.