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Montana water data · Zip Code in Yellowstone County

ZIP 59088: well depth, groundwater and water rights

What the public record says about water in ZIP code 59088: 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 1,218 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

601

1.7 per sq mi

Median well depth

36 ft

half of wells 25–169 ft

Median static water level

15 ft

500 measurements

Median tested yield

15 gpm

481 pump tests

Well depth

How deep are wells in ZIP 59088?

Of 554 wells with a recorded total depth, the median is 36 feet. Half were drilled between 25 and 169 feet; one in ten went deeper than 284 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
54%
50–100 ft
9%
100–200 ft
16%
200–300 ft
12%
300–500 ft
8%
500 ft and deeper
1%

Static water level

15 ft

median depth to water at rest · half between 8 and 64 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

15 gpm

median tested yield · half between 5 and 30 gpm

18% of tested wells produced under 5 gallons per minute and 45% 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 59088

70 wells have been completed here since 2016, 2 of them in the last twelve months. The newest log on file was completed November 7, 2025. Records run back to 1908.

What the wells are for

  • Stockwater304
  • Domestic266
  • Monitoring63
  • Irrigation62
  • Unused17

How they were drilled

  • Rotary212
  • Cable53
  • Forward Rotary41
  • Unknown31

Drillers filing well logs in ZIP 59088

  • Mayes Drilling Inc15 since 2016 · 2025
  • American Drilling & Supply14 since 2016 · 2024
  • Bertram Drilling Inc13 since 2016 · 2025
  • Gary's Drilling Inc.10 since 2016 · 2023
  • Haz Tech Drilling Inc8 since 2016 · 2017
  • Sharp Drilling Inc4 since 2016 · 2021
  • Askin Drilling2 since 2016 · 2025
  • Gary Mayes Drilling Inc1 since 2016 · 2022

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 59088

Montana DNRC lists 589 water rights with a point of diversion inside this area: 453 groundwater and 136 surface water, 572 of them active. The median priority date is 1979, and the oldest claim dates to 1884.

Types of right

  • Statement Of Claim296
  • Ground Water Certificate237
  • Stockwater Permit23
  • Exempt Notice18
  • Provisional Permit14

Purposes

  • Stock321
  • Domestic104
  • Wildlife39
  • Domestic; Stock27
  • Irrigation21

DNRC basins

  • 43Q589

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 59088 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)164 wells · 37% · median 26 ft
  • Tongue River Member (of Ft Union Fm.)98 wells · 22% · median 125 ft
  • Lance Formation58 wells · 13% · median 210 ft
  • Tullock Member (of Ft Union Fm.)51 wells · 11% · median 175 ft
  • Terrace Deposits (holocene)46 wells · 10% · median 26 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 59088

Petroleum releases

19

1 open · 18 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

9

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 2010. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.