A puddle of water gathers under the Secure Adjustment Unit on the afternoon of Oct. 15, 2025, after another leak is found in the piping inside Montana State Prison. Credit: Montana Department of Corrections

Running water returned to all parts of Montana State Prison on Monday, according to a press release from Montana Department of Corrections spokesperson Carolynn Stocker. The return comes a little more than two weeks after the department abruptly shut off supply to most of the facility in response to leaks in the system. 

The prison’s water supply, which tested positive for coliform bacteria in July, September and October, remains under a boil advisory from the Montana Department of Environmental Quality. The prison continues to supply inmates with bottled water for drinking. Inmates are using running water for bathing and flushing toilets.

On Oct. 9, MSP staff accidentally cracked a 50-year-old piece of the water infrastructure during routine work on the water system, according to The Missoulian. Inmates reported inhumane conditions in the week before water returned to some MSP units. 

Of the $21 million allocation approved by the 2025 Legislature for prison infrastructure upgrades, $10 million had been set aside for waterline upgrades, according to Stocker. She noted the amount necessary for water line renovations may change because of the incident.

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Zeke Lloyd writes about labor, business and criminal justice for Montana Free Press. Prior to his current role, he worked as a wildfire reporting intern at MTFP in 2024 and spent a summer writing for the Colorado Springs Gazette. He is a graduate of Colorado College, where he worked at the student newspaper. He grew up in central Ohio and is now based in Helena. You can reach him at [email protected].