sewer basin
51Water supply and sanitation in Spain — is characterized by universal access and generally good service quality, while tariffs are among the lowest in the EU. [ [http://www.iwahq.org/uploads/sgs/sg%20on%20statistic%20and%20ec/doc%20and%20reports/IWA%20international%20statistics%200806.p… …
52Mackenzie River — River system, Northwest Territories, Canada. It flows northward from Great Slave Lake into the Beaufort Sea of the Arctic Ocean. Its basin, with an area of 697,000 sq mi (1,805,200 sq km), is the largest in Canada. It is 1,025 mi (1,650 km) long… …
53River Thames — Thames redirects here. For other uses, see Thames (disambiguation). Coordinates: 51°29′56″N 0°36′31″E / 51.4989°N 0.6087°E / 5 …
54Birmingham, Alabama — This article is about the U.S. city. For the city in England, see Birmingham. For other uses, see Birmingham (disambiguation). Birmingham, Alabama   City   …
55Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p …
56Zones of EverQuest II — EverQuest 2, an MMORPG, is set in the fantasy world of Norrath which is divided into more than 400 zones. Zones are playable areas of the EverQuest universe that can be accessed by players. They are connected to other zones by zone lines and… …
57Glossary of environmental science — This is a glossary of environmental science.Environmental science is the study of interactions among physical, chemical, and biological components of the environment. Environmental science provides an integrated, quantitative, and… …
58Kishwaukee River — Infobox River | river name = Kishwaukee River caption = Kishwaukee River in DeKalb, Illinois, May 2006 origin = Cropsey Moraine and Woodstock, Illinois mouth = Rock River basin countries = United States length = elevation = mouth elevation =… …
59Potomac River — Coordinates: 37°59′57″N 76°14′59″W / 37.99917°N 76.24972°W / 37.99917; 76.24972 …
60Largo, Florida — Infobox Settlement official name = Largo other name = native name = nickname = The City of Progress settlement type = City motto = imagesize = image caption = flag size = image seal size = image shield = shield size = image blank emblem = blank… …
