Tuesday, October 7, 2014

USA, California:

Geothermal Energy Collides With Drinking Water Needs in High Sierra (NBCNews.com)

The area around Mammoth Lakes and the
Mammoth Mountain ski area
A bitter battle is playing out on the eastern slopes of the Sierra and it’s all about water: hot versus cold.

The town of Mammoth Lakes is marshaling forces against a geothermal company that wants to substantially increase the amount of hot water it’s pumping from a source deep underground. Mammoth residents fear that the expanded pumping could threaten the aquifer that sits hundreds of feet above the hot water zone and supplies 70 percent of the community’s drinking water.

That cold water aquifer has taken on even greater significance during California’s persistent drought.

Locals say they aren’t against geothermal power; they just want the company to commit to drilling dedicated deep wells that would allow constant monitoring of changes in the hot water zone and provide a warning of any threat to the cold water aquifer.

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