ZIP 59925: well depth, groundwater and water rights

Well depth

How deep are wells in ZIP 59925?

Of 883 wells with a recorded total depth, the median is 228 feet. Half were drilled between 115 and 381 feet; one in ten went deeper than 539 feet and one in ten found water shallower than 55 feet. Depth is set by local geology and position on the landscape, both of which change over short distances, so the spread matters as much as the median.

Drilling activity

Recent well drilling in ZIP 59925

271 wells have been completed here since 2016, 30 of them in the last twelve months. The newest log on file was completed August 24, 2026. Records run back to 1914.

Water rights

Water rights on file in ZIP 59925

Montana DNRC lists 1,011 water rights with a point of diversion inside this area: 608 groundwater and 403 surface water, 958 of them active. The median priority date is 1987, and the oldest claim dates to 1855.

Area totals describe the neighbourhood, not any one parcel. Montana publishes no authoritative link between a parcel and a water right; whether a right attaches to a specific property is a property-level question that our reports answer with the DNRC abstract linked.

Aquifers and geology

What wells in ZIP 59925 draw from

Drillers record the aquifer a well is completed in. The units below account for the wells here that carry an aquifer assignment; the median depth beside each is for wells completed in that unit.

• Ravalli Group88 wells · 33% · median 261 ft
• Alluvium (holocene)74 wells · 28% · median 42 ft
• Belt Supergroup42 wells · 16% · median 321 ft
• Alluvium (pleistocene)23 wells · 9% · median 156 ft
• Glacial Outwash (pleistocene)15 wells · 6% · median 60 ft

Aquifer assignments are the driller's, recorded at completion, and many older logs carry none. Absence of an assignment is not evidence about the geology.

Environmental groundwater screening

Documented environmental sites in ZIP 59925

A documented release or site in the area is not evidence that any particular well is affected. Whether a release reaches a well depends on groundwater flow direction, geology, well depth and construction, the extent of the plume and the cleanup performed. The most recent release reported here dates to 2022. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.