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Montana water data · Zip Code in Rosebud County

ZIP 59323: well depth, groundwater and water rights

What the public record says about water in ZIP code 59323: 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 901 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

729

13.7 per sq mi

Median well depth

48 ft

half of wells 30–100 ft

Median static water level

32 ft

515 measurements

Median tested yield

8 gpm

159 pump tests

Well depth

How deep are wells in ZIP 59323?

Of 622 wells with a recorded total depth, the median is 48 feet. Half were drilled between 30 and 100 feet; one in ten went deeper than 209 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
51%
50–100 ft
23%
100–200 ft
15%
200–300 ft
3%
300–500 ft
3%
500 ft and deeper
4%

Static water level

32 ft

median depth to water at rest · half between 16 and 58 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 3 and 18 gpm

36% of tested wells produced under 5 gallons per minute and 25% 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 59323

177 wells have been completed here since 2016, 4 of them in the last twelve months. The newest log on file was completed May 13, 2026. Records run back to 1911.

What the wells are for

  • Monitoring512
  • Injection63
  • Domestic43
  • Stockwater42
  • Other15

How they were drilled

  • Rotary375
  • Air Rotary119
  • Hollow Stem Auger42
  • Forward Rotary33

Drillers filing well logs in ZIP 59323

  • Askin Drilling135 since 2016 · 2026
  • Ronald L Askin Drilling52 since 2016 · 2023
  • Higgins Drilling Company6 since 2016 · 2023
  • Clayton Larson5 since 2016 · 2017
  • Central Drilling Inc5 since 2016 · 2024
  • Haz Tech Drilling Inc2 since 2016 · 2017
  • Gordon Drilling Inc1 since 2016 · 2018
  • Hydrometrics Inc33 all-time · 2013

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 59323

Montana DNRC lists 136 water rights with a point of diversion inside this area: 90 groundwater and 46 surface water, 126 of them active. The median priority date is 1968, and the oldest claim dates to 1889.

Types of right

  • Statement Of Claim81
  • Ground Water Certificate51
  • Provisional Permit3
  • Stockwater Permit1

Purposes

  • Stock90
  • Commercial10
  • Industrial7
  • Domestic7
  • Irrigation6

DNRC basins

  • 42KJ135
  • 42A1

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 59323 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.)63 wells · 58% · median 146 ft
  • Coal Mine Spoil Banks10 wells · 9% · median 56 ft
  • Alluvium (quaternary)8 wells · 7% · median 26 ft
  • Fort Union Formation8 wells · 7% · median 605 ft
  • Fox Hills-hell Creek Aquifer6 wells · 6% · median 1,060 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 59323

Petroleum releases

22

6 open · 16 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

14

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 2024. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.