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...

June is National Safety Month

June is National Safety Month

June 01, 2024

As June arrives and the sun shines brightly overhead, many of us eagerly embrace the great outdoors to soak up the warmth and beauty of summertime. However, it's important to remember that outdoor adventures come with their own set of safety considerations.

Read the full article »