Water & Dams

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The Westar Energy constructed-wetland treatment system in northeast Kansas uses a novel, two-tiered approach to remove environmentally sensitive metals and selenium in wastewater effluent from a coal plant before they can harm natural vegetation and wildlife.

An array of factors, ranging from difficult terrain to political unrest, challenge contractors trying to build in the Himalayas and other difficult-to-reach locations.

When the U.S. Congress adjourned in December, it scrapped a water-rights settlement package meant to end years of bitter haggling in California and Oregon’s Klamath Basin among farmers, fishermen, utilities ratepayers and environmentalists.

A report completed last March for Flint, Mich.’s emergency manager contained recommendations to inhibit pipe corrosion, which has been blamed for high levels of lead in the city’s water supply.