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...

Time For Preparedness

Time For Preparedness

September 03, 2024

As September arrives, so does National Preparedness Month—a time to emphasize the importance of being ready for any emergency situation that may arise. From natural disasters to unforeseen emergencies, being prepared can make all the difference in keeping yourself and your loved ones safe.

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