This collection is a subgroup (Division) of the Montana Department of Environmental Quality records, RS 494. After the Department of Environmental Quality was formed in 1995, following the split from the Department of Health and Environmental Sciences (which became the Department of Public Health and Human Services) the Water Quality Bureau became the Water Quality Division. Please see the primary finding aid for more Montana Department of Environmental Quality records. These records of the Department of Health and Environmental Sciences, Water Quality Bureau (1989-1994) consist of subject files related to water planning projects for various subdivisions in Montana.

This collection consists of subject files related to water planning projects for various subdivisions in Montana. Most prominently represented are Flathead, Gallatin, and Lewis and Clark Counties.