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.

Bill Payment Options

Looking for the most convenient way to pay your bill? We offer a wide variety of payment options to our customers. Simply choose the option that best suits your needs... Learn more...

Welcome Back Warmer Temps!

Welcome Back Warmer Temps!

June 01, 2022

We love summertime! 

And there is nothing better than celebrating longer days and evenings on the porch with friends and family. While most see summer as a time to break-out new projects, explore, and earn some tan lines, staying prepared and safe are key factors in keeping the good times rolling! 

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