Water Pressure and Flows

Water pressure varies throughout the city and is affected by the elevation at which the service is supplied and the reservoir or pumps which service your location. Pressure range varies from approximately 35 to 110 psi. Daily and seasonal usage may also cause pressure fluctuations. Pressure requirements for service are based upon average calculated pressures.

If you feel your pressure or flow is low, contact the City Utility Office at (406) 727-8045. They will determine what your average pressure range should be. If the Department feels there is a problem, they will do a pressure test. From the test it can be determined if the service line going from the meter to the main has a problem or if internal building plumbing has restrictions.