Welcome to the Official Website of Mni Wašté Water Company

The Mni Wašté Water Company is a tribally chartered entity and serves 14,000 members within the Dewey and Ziebach counties on the Cheyenne River Lakota Reservation in South Dakota.

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Cooling Off This Summer: The Importance of Hydration and Water Conservation

Cooling Off This Summer: The Importance of Hydration and Water Conservation

June 01, 2025

June marks the official start of summer, bringing longer days, sunshine, and warmer temperatures.

With the heat comes the increased need to stay hydrated, but it’s also a time when we need to be more mindful of our water usage.

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