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Montana water data · Zip Code in Dawson County

ZIP 59259: well depth, groundwater and water rights

What the public record says about water in ZIP code 59259: 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 1,511 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

674

1.1 per sq mi

Median well depth

101 ft

half of wells 50–187 ft

Median static water level

57 ft

420 measurements

Median tested yield

9 gpm

469 pump tests

Well depth

How deep are wells in ZIP 59259?

Of 647 wells with a recorded total depth, the median is 101 feet. Half were drilled between 50 and 187 feet; one in ten went deeper than 280 feet and one in ten found water shallower than 32 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
24%
50–100 ft
25%
100–200 ft
29%
200–300 ft
14%
300–500 ft
6%
500 ft and deeper
2%

Static water level

57 ft

median depth to water at rest · half between 25 and 109 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

9 gpm

median tested yield · half between 5 and 15 gpm

16% of tested wells produced under 5 gallons per minute and 14% 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 59259

62 wells have been completed here since 2016, 3 of them in the last twelve months. The newest log on file was completed June 5, 2026. Records run back to 1906.

What the wells are for

  • Stockwater495
  • Domestic183
  • Unused46
  • Monitoring31
  • Irrigation17

How they were drilled

  • Rotary180
  • Cable41
  • Forward Rotary41
  • Bored17

Drillers filing well logs in ZIP 59259

  • H & H Drilling13 since 2016 · 2025
  • Sharp Drilling Inc13 since 2016 · 2025
  • Solid Waterwell Drilling10 since 2016 · 2021
  • Wahl Construction9 since 2016 · 2024
  • Thermal Drill Inc8 since 2016 · 2023
  • Agri Industries Inc2 since 2016 · 2024
  • Askin Drilling2 since 2016 · 2017
  • Salsbury Well Drilling Inc57 all-time · 2009

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 59259

Montana DNRC lists 825 water rights with a point of diversion inside this area: 526 groundwater and 299 surface water, 790 of them active. The median priority date is 1958, and the oldest claim dates to 1864.

Types of right

  • Statement Of Claim549
  • Ground Water Certificate234
  • Provisional Permit27
  • Exempt Notice8
  • Stockwater Permit6

Purposes

  • Stock637
  • Domestic71
  • Irrigation46
  • Domestic; Stock19
  • Stock; Domestic7

DNRC basins

  • 40P744
  • 42M42
  • 40S39

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 59259 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.)315 wells · 73% · median 98 ft
  • Fort Union Formation40 wells · 9% · median 197 ft
  • Alluvium (quaternary)39 wells · 9% · median 27 ft
  • Fox Hills-hell Creek Aquifer21 wells · 5% · median 320 ft
  • Fox Hills Formation Or Sandstone7 wells · 2% · median 1,156 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 59259

Petroleum releases

5

3 open · 2 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

7

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 2001. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.