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UMass Amherst study shows ‘hydropeaking’ can reduce downstream river flows

Tuesday, March 31, 2015

AMHERST, Mass. – In the first-of-its-kind study of the environmental effects of hydropeaking, that is releasing water at hydropower dams to meet peak daily electricity demand, two University of Massachusetts Amherst researchers say their unexpected findings suggest that about 10 percent of released water may be permanently lost, making that water unavailable to downstream users and wildlife. Hydrogeologist Brian Yellen says, “The most interesting thing we found is something we weren’t looking for. That is, in this 13-mile stretch of the river, about 10 percent of water released from the dam every day gets pushed into the aquifer and is lost permanently.” (3/31/15 UMass Press Release)