Surface Water Monitoring Program

The Lower Gallatin Watershed is experiencing rapid growth.  With more people comes a greater potential for impacts to surface water quality.  However, surface water quality monitoring within the watershed to-date has been short-term and project-specific.  As a non-regulatory department of Gallatin County government with a mission to protect, preserve and improve water quality, the Gallatin Local Water Quality District (GLWQD) is tasked in its five-year strategic plan with establishing a Surface Water Quality Trend Monitoring Program.

The initial Program network is anticipated to include sixteen monitoring stations on twelve streams in northern Gallatin County (see map).  The streams are geographically dispersed and flow through areas of varying land use and geology within the District boundary.  Site access is still pending at some stations.


The purpose of the Program is to collect long-term surface water quality and quantity data from monitoring stations located throughout the GLWQD.  Regular data collection from these monitoring stations began in spring of 2018 and will be used to assess trends in parameters commonly associated with nonpoint source pollution.

Education and outreach are important components of the Program.  However, the Program is in its infancy and GLWQD is currently focused on establishing a dataset on which to base these efforts.  Check back for data links, results, and more.

A citizen volunteer stream monitoring effort, Gallatin Stream Teams, is a cooperative program of the GLWQD and the Gallatin Watershed Council (GWC), a local nonprofit watershed group.  Stream Teams began in 2008, and was designed with the intent to utilize it as a component of the GLWQD Surface Water Quality Trend Monitoring Program.

To learn more, or join the citizen volunteer stream monitoring program, check out our Gallatin Stream Teams page.

Program Documents:
GLWQD Surface Water Monitoring Network QAPP

For more information on the GLWQD Surface Water Monitoring Network Program, contact Torie Haraldson at: