Hyalite/Sourdough Water Treatment Plant

Hyalite/Sourdough water treatment plant
An overview of the plant, with the Bridger Mountain range in the background.
Hyalite/Sourdough water treatment plant
Solids settle as the water passes over the inclined plates. Clearwater flows out to the membrane feed pumps and then to the strainers.
Hyalite/Sourdough water treatment plant
Clearstory windows add light to the treatment plant while breaking up the outline of the plant building. These three have windows, others have louvres and are part of the HVAC air intake and exhaust system.
Hyalite/Sourdough water treatment plant
Operations foreman Eric Campbell performing high pressure air line maintenance on the membrane valve rack with HDR project manager Nathan Kutil.
Hyalite/Sourdough water treatment plant
Three high pressure air compressors provide double redundancy for this critical component, which controls the automated membrane functions.
Hyalite/Sourdough water treatment plant
HDR project manager Nathan Kutil with city of Bozeman operations foreman Eric Campbell in the WTP control room. Membrane racks are visible through the window.
Hyalite/Sourdough water treatment plant
Operations foreman Eric Campbell and HDR project manager Nathan Kutil look at distribution water storage and trending data on a large flat screen in the control room. The large screen was installed to mirror the smaller control room screens for easy visibility during training sessions.
City of Bozeman
Bozeman, Montana, USA

The Bozeman, Montana, Hyalite/Sourdough water treatment plant (WTP) is custom-designed to handle major fluctuations in raw water resulting from wild fire and high turbidity runoffs, extreme temperature variations, or other possible degrading water precursors. The innovative plant upgrades the region's water infrastructure to meet future drinking water needs and challenges, as well as making training facilities available to other regional WTP operators to enhance their skills.

The award-winning WTP, the culmination of a seven-year process, officially opened July 9, 2014. It began with HDR's 2007 Water Facility Plan that recommended replacing the existing direct filtration facility, continued with a seven-month pilot program to evaluate treatment technologies, and ended with HDR's design and construction administration for the new 22-million gallon per day (mgd) membrane water treatment plant, with the capability to expand to 36 mgd. The new 53,000-square-foot facility replaces the 31-year-old 15 mgd plant.

The new plant includes an administration/laboratory and vehicle tenance facility, influent flow control, raw water preliminary treatment, fully-automated membrane water treatment units, chemical storage and feed residuals handling, and standby power.



Outstanding Membrane Plant Award, Large Facility, Northwest Membrane Operators Association

National Recognition Award, Engineering Excellence Awards, American Council of Engineering Companies

Grand Project Award, Engineering Excellence Awards, American Council of Engineering Companies of Montana


Project of the Year, American Public Works Association Rocky Mountain Chapter

Intermountain Project of the Year, Water/Environment Category, Engineering News-Record

  • Type of Construction: New Construction
  • Professional Services: Construction Administration, Engineering & Design, New Plant Design
  • Project Type: Membrane Treatment, Water, Water Treatment
  • Related Projects: Drinking Water, Water