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Montana water data · County

Wibaux County: well depth, groundwater and water rights

What the public record says about water in Wibaux County: how deep wells go, where the water table sits, what wells produce, which water rights are on file, and which documented environmental sites are nearby. Area statistics orient you; a property report analyzes the records around one specific parcel.

Updated September 2026 · Based on 3,174 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder

Wells on record

1,414

1,284 with recorded depth

Median well depth

130 ft

half of wells 60–232 ft

Median static water level

70 ft

962 measurements

Median tested yield

8 gpm

1,104 pump tests

Well depth

How deep are wells in Wibaux County?

Of 1,284 wells with a recorded total depth, the median is 130 feet. Half were drilled between 60 and 232 feet; one in ten went deeper than 380 feet and one in ten found water shallower than 28 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.

under 50 ft
22%
50–100 ft
17%
100–200 ft
30%
200–300 ft
14%
300–500 ft
9%
500 ft and deeper
8%

Static water level

70 ft

median depth to water at rest · half between 30 and 137 ft

The static level is how far below ground the water stands before pumping, measured by the driller at completion. It affects pump setting and operating cost, and it moves with season and with neighbouring use.

Well yield

8 gpm

median tested yield · half between 5 and 13 gpm

20% of tested wells produced under 5 gallons per minute and 16% produced 20 or more. These are short completion tests, not sustained-capacity tests; a household typically needs 3 to 5 gpm with storage.

Drilling activity

Recent well drilling in Wibaux County

82 wells have been completed here since 2016. The newest log on file was completed July 25, 2025. Records run back to 1890.

What the wells are for

  • Stockwater1,039
  • Domestic467
  • Monitoring140
  • Unused46
  • Irrigation25

How they were drilled

  • Rotary388
  • Forward Rotary180
  • Unknown62
  • Solid Stem Auger36

Drillers filing well logs in Wibaux County

  • Montana Salinity Control Association36 since 2016 · 2022
  • Askin Drilling22 since 2016 · 2023
  • H & H Drilling12 since 2016 · 2022
  • Sharp Drilling Inc7 since 2016 · 2025
  • Higgins Drilling Company4 since 2016 · 2023
  • Ronald L Askin Drilling1 since 2016 · 2019
  • H & R171 all-time · 2001
  • Goodale125 all-time · 1977

Ranked by well logs filed with GWIC, public record only. Not an endorsement, a referral or a paid listing; we have no business relationship with these companies. Verify licensing with the Montana Board of Water Well Contractors before hiring.

Water rights

Water rights on file in Wibaux County

Montana DNRC lists 1,743 water rights in the county: 921 groundwater and 822 surface water, 1,635 of them active. The median priority date is 1961, and the oldest claim dates to 1864.

Types of right

  • Statement Of Claim1,149
  • Ground Water Certificate469
  • Provisional Permit75
  • Stockwater Permit30
  • Exempt Notice17

Purposes

  • Stock1,275
  • Irrigation132
  • Domestic131
  • Domestic; Stock79
  • Lawn And Garden15

DNRC basins

  • 39G969
  • 42M774

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 Wibaux County 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.

  • Fort Union Formation547 wells · 55% · median 120 ft
  • Tongue River Member (of Ft Union Fm.)228 wells · 23% · median 118 ft
  • Fox Hills-hell Creek Aquifer106 wells · 11% · median 775 ft
  • Hell Creek Formation54 wells · 5% · median 308 ft
  • Alluvium (quaternary)19 wells · 2% · median 15 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 Wibaux County

Petroleum releases

9

1 open · 8 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

8

underground storage tanks, current and historical

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 2014. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.