assiniboine & sioux rural water supply system


The Fort Peck Reservation is home to two separate Indian nations, each composed of numerous bands and divisions.

The Sioux divisions of Sisseton, Wahpetons, the Yanktonais, and the Teton Hunkpapa are all represented.

The Assiniboine bands of Canoe Paddler and Red Bottom are represented.

The Reservation is located in the extreme northeast corner of Montana, on the north side of the Missouri River.

Assiniboine & Sioux Rural Water Supply System
703 2nd Ave. West
P.O. Box 1027
Poplar, MT 59255




Assiniboine & Sioux Rural Water Supply System-ASRWSS/Dry Prairie Rural Water System is located in northeastern Montana. The Reservation is approximately 100 miles long by 40 miles wide and is bounded on the south by the Missouri River.

Groundwater from shallow alluvial aquifers is currently the primary water source for the municipal systems. The regional rural water project will provide for a single water treatment plant located on the Missouri River, near Wolf Point, Montana, and will distribute water through 3,200 miles of pipeline.

The water treatment plant will have a capacity of delivering up to 13.6 million gallons of water per day. At full build-out, this project will serve a population of approximately 10,439.

As of September 30, 2009, the project was approximately 22 percent complete. FY 2011 funding for this project is $2 million.

"ASRWSS is committed to delivering clean, affordable and dependable drinking water that will improve the quality of life and create economic opportunities throughout northeast Montana."