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That power plant used lake water for the cooling system.

He decided to fill the three containers with lake water before they set out.

There was a splash as the warm lake water closed over him.

"It might not be crystal clear, but there's still something about lake water," he said.

The lake waters are pristine, having had very little impact from human activities.

To wash their food down they dipped up cold, fresh lake water.

"Will the lake water not be severely contaminated as well?"

There have been several cases of dogs being affected after playing in and drinking the lake water.

All these factors increased the pollution level in the lake waters.

The lake waters have been put to several beneficial uses.