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Montana water data · Zip Code in Rosebud County

ZIP 59327: well depth, groundwater and water rights

What the public record says about water in ZIP code 59327: 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 5,952 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

2,351

1.2 per sq mi

Median well depth

99 ft

half of wells 45–180 ft

Median static water level

50 ft

1,808 measurements

Median tested yield

10 gpm

1,333 pump tests

Well depth

How deep are wells in ZIP 59327?

Of 2,103 wells with a recorded total depth, the median is 99 feet. Half were drilled between 45 and 180 feet; one in ten went deeper than 297 feet and one in ten found water shallower than 20 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
27%
50–100 ft
23%
100–200 ft
28%
200–300 ft
12%
300–500 ft
6%
500 ft and deeper
3%

Static water level

50 ft

median depth to water at rest · half between 20 and 101 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

10 gpm

median tested yield · half between 6 and 20 gpm

17% of tested wells produced under 5 gallons per minute and 29% 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 ZIP 59327

352 wells have been completed here since 2016, 16 of them in the last twelve months. The newest log on file was completed July 9, 2026. Records run back to 1885.

What the wells are for

  • Stockwater1,009
  • Monitoring707
  • Domestic461
  • Research72
  • Injection58

How they were drilled

  • Rotary914
  • Forward Rotary232
  • Air Rotary144
  • Unknown111

Drillers filing well logs in ZIP 59327

  • Askin Drilling234 since 2016 · 2026
  • Higgins Drilling Company62 since 2016 · 2026
  • Okeefe Drilling Co22 since 2016 · 2017
  • Ronald L Askin Drilling18 since 2016 · 2023
  • Haz Tech Drilling Inc9 since 2016 · 2020
  • Excel Drilling8 since 2016 · 2020
  • Pioneer Technical Services Inc7 since 2016 · 2023
  • Sk Geotechnical Co5 since 2016 · 2020

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 ZIP 59327

Montana DNRC lists 3,535 water rights with a point of diversion inside this area: 1,476 groundwater and 2,059 surface water, 3,361 of them active. The median priority date is 1955, and the oldest claim dates to 1864.

Types of right

  • Statement Of Claim2,643
  • Ground Water Certificate672
  • Provisional Permit94
  • Stockwater Permit93
  • Exempt Notice19

Purposes

  • Stock2,618
  • Irrigation330
  • Domestic234
  • Wildlife77
  • Domestic; Stock71

DNRC basins

  • 42KJ2,272
  • 42A1,042
  • 42C220
  • 42B1

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 59327 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.

  • Tongue River Member (of Ft Union Fm.)479 wells · 34% · median 111 ft
  • Alluvium (quaternary)161 wells · 11% · median 26 ft
  • Tullock Member (of Ft Union Fm.)129 wells · 9% · median 159 ft
  • Lance-hell Creek Undifferentiated107 wells · 8% · median 175 ft
  • Fox Hills-hell Creek Aquifer75 wells · 5% · median 240 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 59327

Petroleum releases

35

13 open · 22 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

31

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 2020. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.