Related by context. Frequent words. (Click for all words.) 57 untreated wastewater 57 wastewater discharge 55 Clean Water Act 54 wastewater discharges 53 suspended solids 52 contaminating 52 fecal coliform bacteria 52 untreated sewage 51 Raw sewage 51 raw sewage 50 dumping 49 effluent 49 improperly disposing 48 sewage spills 48 fecal coliform 48 discharging 47 discharges 47 sewage overflows 47 Elimination System 47 nutrient pollution 47 polluting 46 wastewater 46 fecal bacteria 46 sewer overflows 46 National Pollutant Discharge 46 dissolved solids 45 sediment 45 contaminants 45 sewage 45 effluents 45 Polluted 44 polluted 44 polluted runoff 44 pollutants 44 toxic waste 44 turbidity 44 dissolved oxygen levels 44 total dissolved solids 43 toxic pollutants 43 wastewater treatment 43 Creek tributary 43 dredging 43 polychlorinated biphenyls PCBs 43 contaminate drinking 43 sewage overflow 43 livestock manure 43 contaminant 43 suspected carcinogen 43 harboring illegal aliens 43 dissolved oxygen 43 tributary 42 toxic wastes 42 outfalls 42 PCBs 42 hydrofluoric acid 42 hazardous waste 42 silt 42 navigable waters 42 Zebra mussels 42 treated effluent 42 toxic chemicals 42 backflow 42 contaminated sediments 42 shellfish harvesting 42 dredged material 42 contaminated 41 pollution 41 Sediment 41 Exxon Valdez ran aground 41 negligently causing 41 watercourse 41 pollute 41 perchlorethylene 41 groundwater 41 Talmadge Creek 41 DEQ 41 contamination 41 coliform bacteria 41 Polluting 41 polychlorinated biphenyls 41 toxic substances 41 turbid 41 polluted waterways 41 combined sewer overflows 41 liquid manure 40 Tittabawassee River 40 coliform 40 seepage 40 MDEQ 40 groundwater pumping 40 drainage basin 40 waterways 40 silted 40 harboring illegal immigrants 40 maximum contaminant 40 dredge spoils 40 Toxic chemicals 40 TMDL 40 sludge 40 sedimentation 40 stormwater pollution