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Level of Lake Mead at Glen Canyon NRA now so low that power generation threatened

Water levels at drought-stricken Lake Powell have dropped below an elevation water managers had fought to protect, dipping past a buffer meant to protect hydropower generation.

For the first time since water rose behind Glen Canyon Dam in the 1960s, the lake’s surface dropped below elevation 3,525 Tuesday, the U.S. Bureau of Reclamation said Wednesday morning. The dam can still produce electricity down to elevation 3,490, but shallower water reduces pressure and the power plant’s capacity, and further declines could damage the turbines.

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