Acid mine drainage -- Amoco Cadiz oil spill -- Aqueducts -- Aquifers -- Argo Merchant oil spill -- Ashio, Japan, copper mine -- Best available technologies -- Black Sea -- BP Deepwater Horizon oil spill -- Braer oil spill -- Brent Spar occupation -- Chesapeake Bay -- Chlorination -- Clean Water Act and amendments -- Coastal Zone Management Act -- Colorado River -- Continental shelves -- Cultural eutrophication -- Cuyahoga River fires -- Dams and reservoirs -- Danube River -- Desalination -- Dredging -- Drinking water -- Environment Canada -- Environmental Protection Agency -- Eutrophication -- Experimental lakes area -- Externalities -- Exxon Valdez oil spill -- Flood Control Act -- Floodplains -- Floods -- Fluoridation -- Ganges River -- Great Lakes International Joint Commission -- Groundwater pollution -- Gulf War oil burning -- Irrigation -- Kesterson Reservoir -- Klamath River -- Lake Baikal -- Lake Erie -- Leachates -- London Convention on the Prevention of Marine Pollution -- Los Angeles Aqueduct -- Mediterranean Blue Plan -- Mississippi River -- Mono Lake -- Monongahela River tank collapse -- Nile River -- North American Free Trade Agreement -- Ocean currents -- Ocean dumping -- Ocean pollution -- Oil spills -- Pacific Islands -- PEMEX oil well leak -- Polluter pays principle -- Rain gardens -- Rainwater harvesting -- Rhine River -- Riparian rights -- Rocky Flats, Colorado, nuclear plant releases -- Runoff, agricultural -- Runoff, urban -- Sacramento River pesticide spill -- Safe Drinking Water Act -- Santa Barbara oil spill -- Sea Empress oil spill -- Sea-level changes -- Seabed disposal -- Sedimentation -- Sludge treatment and disposal -- Soil salinization -- Stormwater management -- Teton Dam collapse -- Tobago oil spill -- Torrey Canyon oil spill -- United Nations Convention on the Law of the Sea -- U.S. Geological Survey -- Wastewater management -- Water conservation -- Water pollution -- Water-pollution policy -- Water quality -- Water rights -- Water-saving toilets -- Water treatment -- Water use -- Watershed management -- Wells -- Abel Wolman -- Zebra mussels.