Related by context. Frequent words. (Click for all words.) 54 animal droppings 54 ponds 52 toxic algae blooms 51 Invasive species 51 forest preserves 51 lakes 50 sewage lagoon 50 algae blooms 50 beaver dams 50 droppings 50 septic systems 50 contaminating groundwater 49 Raw sewage 49 overgrown vegetation 49 drainage ditches 49 skunks 49 Lake Tenkiller 49 toxic algae 49 fecal contamination 49 lagoons 49 stormwater runoff 48 Illegal dumping 48 polluted runoff 48 bird carcasses 48 fecal coliform 48 phragmites 48 fecal matter 48 aquatic vegetation 48 streambeds 48 fecal bacteria 48 ponding 48 weed infested 47 raccoons 47 chicken manure 47 wetlands 47 stagnant pools 47 lakes ponds 47 contaminants 47 sea gulls 47 sinkholes 47 lake 47 invasive species 47 aquatic weeds 47 Zebra mussels 47 rock outcroppings 47 invasive weeds 47 dredge spoils 47 bird droppings 47 noxious odors 47 creeks rivers 47 retention ponds 47 Hydrilla 47 sewage discharges 46 Infestations 46 duckweed 46 bottomlands 46 snapping turtles 46 turkey vultures 46 sewage 46 Feral cats 46 polluted groundwater 46 Contaminants 46 septic tanks 46 overgrown weeds 46 animal carcasses 45 cat feces 45 e coli 45 rainwater runoff 45 Eurasian milfoil 45 insect infestations 45 purple loosestrife 45 Mount Trashmore 45 eel grass 45 animal feces 45 Odors 45 muskrats 45 emerald ash borers 45 migrating waterfowl 45 giardia 45 ponds lakes 45 mosquito breeding grounds 45 oak wilt 45 Unsightly 45 mosquito borne illnesses 45 overgrowth 45 geese 45 raw sewage 45 shoreline 45 mosquitos 45 feces 45 shoreline erosion 45 chlordane 45 river bottoms 44 deer carcasses 44 hydrilla 44 cattail 44 wetland 44 detention basins 44 waterways 44 milfoil 44 chiggers