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Montana water data · Zip Code in Chouteau County

ZIP 59460: well depth, groundwater and water rights

What the public record says about water in ZIP code 59460: 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 506 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

165

0.6 per sq mi

Median well depth

28 ft

half of wells 23–45 ft

Median static water level

19 ft

148 measurements

Median tested yield

20 gpm

117 pump tests

Well depth

How deep are wells in ZIP 59460?

Of 152 wells with a recorded total depth, the median is 28 feet. Half were drilled between 23 and 45 feet; one in ten went deeper than 225 feet and one in ten found water shallower than 18 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
85%
50–100 ft
3%
100–200 ft
1%
200–300 ft
4%
300–500 ft
5%
500 ft and deeper
2%

Static water level

19 ft

median depth to water at rest · half between 13 and 24 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

20 gpm

median tested yield · half between 9 and 28 gpm

11% of tested wells produced under 5 gallons per minute and 55% 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 59460

3 wells have been completed here since 2016. The newest log on file was completed September 16, 2024. Records run back to 1898.

What the wells are for

  • Domestic100
  • Stockwater77
  • Irrigation35
  • Monitoring27
  • Public Water Supply3

How they were drilled

  • Unknown34
  • Dug26
  • Sonic23
  • Rotary10

Drillers filing well logs in ZIP 59460

  • Boland Drilling2 since 2016 · 2024
  • Unknown85 all-time · 1963
  • Boart Longyear Company24 all-time · 2008
  • Hi-line Drilling Inc16 all-time · 2010
  • Mccoy3 all-time · 1944
  • Hanberg3 all-time · 1962

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 59460

Montana DNRC lists 320 water rights with a point of diversion inside this area: 73 groundwater and 247 surface water, 286 of them active. The median priority date is 1941, and the oldest claim dates to 1886.

Types of right

  • Statement Of Claim257
  • Provisional Permit28
  • Ground Water Certificate25
  • Stockwater Permit5
  • Water Reservation3

Purposes

  • Stock195
  • Irrigation49
  • Domestic26
  • Domestic; Stock11
  • Multiple Domestic10

DNRC basins

  • 41P194
  • 41T88
  • 40H29
  • 41Q6
  • 41O3

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 59460 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.

  • Glacial Drift12 wells · 50% · median 23 ft
  • Alluvium (quaternary)6 wells · 25% · median 30 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 59460

Petroleum releases

5

0 open · 5 resolved

Superfund program sites

1

none on the National Priorities List

Registered tank facilities

15

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 1993. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.