Related by context. Frequent words. (Click for all words.) 56 ash ponds 49 coal ash 48 fly ash 45 ash 45 impoundments 45 coke ovens 44 coal fired 44 coal 43 coal gasification 43 landfills 42 TVA 42 dredge spoils 42 cement kilns 42 biomass 42 MOX fuel 42 plants 42 ESBWR 41 flue gas 41 dredged material 41 contaminated sediments 41 contaminated soils 41 sediment 41 hazardous waste 40 furnace filter 40 tailings 40 flue gases 40 woody biomass 40 tailings ponds 40 landfill 40 Widows Creek 40 smokestack emissions 39 anaerobic digesters 39 valley fills 39 pulverized coal 39 gypsum 39 lignite coal 39 woody debris 39 nuclear reactors 39 Steam Plant 39 contaminants 39 steam generators 39 landfilling 39 watersheds 39 PCBs 38 scrubbers 38 scrubber 38 hazardous waste landfill 38 DEQ 38 dissolved solids 38 coal combustion 38 EPA 38 Meredosia 38 sulfur dioxide SO2 38 sulfur coal 38 plant 38 contaminated groundwater 38 lignite 38 wood chips 38 turbines 38 biomass fuels 37 contaminated soil 37 peatland 37 sludge 37 Kingston Fossil Plant 37 TDEC 37 retention ponds 37 cooling towers 37 incinerators 37 coke oven 37 mill tailings 37 wetlands 37 plasma gasification 37 hazardous chemicals 37 combustion turbine 37 Gasification 37 steam generator 37 bio solids 37 Environmental Protection Agency 37 dry cask storage 37 coal slurry 37 sumps 37 desulphurization 37 hazardous substances 37 reactors 37 integrated gasification 37 bituminous coal 37 digesters 37 utilities 37 coal seams 37 methane 37 atomic reactors 36 boilers 36 radioactive waste 36 petroleum coke 36 selective catalytic reduction 36 chlorine dioxide 36 carbon sequestration 36 fossil fuel 36 radioactive wastes 36 furans 36 NOx