Two U.S. Environmental Protection Agency drinking-water standards for public supplies involving groundwater contaminants that may derive from bedrock sources were promulgated between 2003 and 2006. A new arsenic drinking-water standard, a maximum contaminant level (MCL) of 10 micrograms per liter, became effective in January 2006. The non-radon radio nuclides final standard took effect in December 2003, with an MCL for uranium of 30 micrograms pe...
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This comprehensive encyclopaedia encompasses the most important expressions of carriage driving sport in five key European languages English, German, French, Italian and Spanish. Expertly selected, te...