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Montana water data · Zip Code in Stillwater County

ZIP 59057: well depth, groundwater and water rights

What the public record says about water in ZIP code 59057: 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 1,275 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

731

2.6 per sq mi

Median well depth

90 ft

half of wells 38–201 ft

Median static water level

27 ft

552 measurements

Median tested yield

8 gpm

525 pump tests

Well depth

How deep are wells in ZIP 59057?

Of 698 wells with a recorded total depth, the median is 90 feet. Half were drilled between 38 and 201 feet; one in ten went deeper than 353 feet and one in ten found water shallower than 19 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
33%
50–100 ft
21%
100–200 ft
20%
200–300 ft
11%
300–500 ft
10%
500 ft and deeper
5%

Static water level

27 ft

median depth to water at rest · half between 15 and 60 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 4 and 20 gpm

27% of tested wells produced under 5 gallons per minute and 28% 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 59057

53 wells have been completed here since 2016, 6 of them in the last twelve months. The newest log on file was completed July 30, 2026. Records run back to 1894.

What the wells are for

  • Domestic325
  • Stockwater309
  • Monitoring136
  • Irrigation46
  • Unused16

How they were drilled

  • Rotary308
  • Auger67
  • Forward Rotary50
  • Cable26

Drillers filing well logs in ZIP 59057

  • Aaqua Drilling Inc22 since 2016 · 2026
  • A-1 Drilling12 since 2016 · 2025
  • American Drilling & Supply11 since 2016 · 2025
  • Douglas Drilling4 since 2016 · 2025
  • Bertram Drilling Inc2 since 2016 · 2026
  • Mayes Drilling Inc1 since 2016 · 2021
  • A-1 Drilling/billings Drilling36 all-time · 2015
  • Mt Bureau Of Mines & Geology34 all-time · 1985

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 59057

Montana DNRC lists 540 water rights with a point of diversion inside this area: 348 groundwater and 192 surface water, 514 of them active. The median priority date is 1976, and the oldest claim dates to 1879.

Types of right

  • Ground Water Certificate258
  • Statement Of Claim255
  • Provisional Permit17
  • Stockwater Permit7
  • Exempt Notice2

Purposes

  • Stock315
  • Domestic96
  • Domestic; Stock37
  • Domestic; Lawn And Garden23
  • Irrigation16

DNRC basins

  • 43Q455
  • 43QJ84
  • 43E1

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 59057 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.

  • Judith River Formation (of Montana Group)350 wells · 63% · median 90 ft
  • Eagle Sandstone94 wells · 17% · median 228 ft
  • Sand And Gravel (quaternary)28 wells · 5% · median 38 ft
  • Alluvium (holocene)22 wells · 4% · median 36 ft
  • Alluvium (quaternary)13 wells · 2% · median 39 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 59057

Petroleum releases

3

2 open · 1 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

1

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 1996. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.