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...

The Role of Water in Preparedness: Essential Kits for Every Season

The Role of Water in Preparedness: Essential Kits for Every Season

September 02, 2025

September is National Preparedness Month, a time to reflect on how ready we are for unexpected events. Whether it's severe weather, a natural disaster, or a power outage, one thing is for certain: water plays a crucial role in our preparedness plans.

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