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Montana water data · Zip Code in Treasure County

ZIP 59038: well depth, groundwater and water rights

What the public record says about water in ZIP code 59038: 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 2,791 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

1,078

1.2 per sq mi

Median well depth

83 ft

half of wells 38–175 ft

Median static water level

35 ft

797 measurements

Median tested yield

10 gpm

742 pump tests

Well depth

How deep are wells in ZIP 59038?

Of 923 wells with a recorded total depth, the median is 83 feet. Half were drilled between 38 and 175 feet; one in ten went deeper than 290 feet and one in ten found water shallower than 21 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
31%
50–100 ft
22%
100–200 ft
27%
200–300 ft
10%
300–500 ft
7%
500 ft and deeper
2%

Static water level

35 ft

median depth to water at rest · half between 15 and 86 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 5 and 20 gpm

16% of tested wells produced under 5 gallons per minute and 26% 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 59038

90 wells have been completed here since 2016, 10 of them in the last twelve months. The newest log on file was completed August 10, 2026. Records run back to 1890.

What the wells are for

  • Stockwater617
  • Domestic241
  • Monitoring185
  • Unused37
  • Irrigation25

How they were drilled

  • Rotary305
  • Forward Rotary112
  • Unknown63
  • Drilled46

Drillers filing well logs in ZIP 59038

  • Montana Salinity Control Association44 since 2016 · 2025
  • American Drilling & Supply34 since 2016 · 2026
  • Askin Drilling21 since 2016 · 2026
  • Higgins Drilling Company17 since 2016 · 2026
  • Sk Geotechnical Co2 since 2016 · 2017
  • Bertram Drilling Inc1 since 2016 · 2016
  • Sunrise Drilling Inc107 all-time · 2005
  • Unknown98 all-time · 1973

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 59038

Montana DNRC lists 1,686 water rights with a point of diversion inside this area: 839 groundwater and 847 surface water, 1,604 of them active. The median priority date is 1954, and the oldest claim dates to 1868.

Types of right

  • Statement Of Claim1,220
  • Ground Water Certificate358
  • Provisional Permit46
  • Stockwater Permit41
  • Exempt Notice14

Purposes

  • Stock1,298
  • Irrigation128
  • Domestic127
  • Lawn And Garden29
  • Domestic; Stock23

DNRC basins

  • 42KJ1,675
  • 42A8
  • 43P3

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 59038 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.

  • Alluvium (holocene)215 wells · 28% · median 38 ft
  • Tongue River Member (of Ft Union Fm.)178 wells · 23% · median 144 ft
  • Tullock Member (of Ft Union Fm.)132 wells · 17% · median 92 ft
  • Lance Formation69 wells · 9% · median 170 ft
  • Lance-hell Creek Undifferentiated63 wells · 8% · median 173 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 59038

Petroleum releases

11

4 open · 7 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

16

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 2025. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.