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Montana water data · Zip Code in Yellowstone County

ZIP 59006: well depth, groundwater and water rights

What the public record says about water in ZIP code 59006: 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 511 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

234

3.8 per sq mi

Median well depth

31 ft

half of wells 25–42 ft

Median static water level

14 ft

193 measurements

Median tested yield

20 gpm

200 pump tests

Well depth

How deep are wells in ZIP 59006?

Of 203 wells with a recorded total depth, the median is 31 feet. Half were drilled between 25 and 42 feet; one in ten went deeper than 69 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
85%
50–100 ft
11%
100–200 ft
3%
200–300 ft
0%
300–500 ft
0%
500 ft and deeper
0%

Static water level

14 ft

median depth to water at rest · half between 9 and 20 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 12 and 33 gpm

4% of tested wells produced under 5 gallons per minute and 56% 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 59006

30 wells have been completed here since 2016, 1 of them in the last twelve months. The newest log on file was completed November 11, 2025. Records run back to 1907.

What the wells are for

  • Domestic162
  • Stockwater89
  • Irrigation33
  • Monitoring15
  • Unused8

How they were drilled

  • Rotary93
  • Forward Rotary18
  • Cable16
  • Unknown13

Drillers filing well logs in ZIP 59006

  • Gary's Drilling Inc.12 since 2016 · 2023
  • Bertram Drilling Inc6 since 2016 · 2025
  • Mayes Drilling Inc4 since 2016 · 2025
  • American Drilling & Supply2 since 2016 · 2023
  • Unknown16 all-time · 1963
  • Gary Mayes Drilling Inc14 all-time · 2009
  • A-1 Drilling/billings Drilling10 all-time · 2008
  • Owner5 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 59006

Montana DNRC lists 264 water rights with a point of diversion inside this area: 197 groundwater and 67 surface water, 250 of them active. The median priority date is 1976, and the oldest claim dates to 1904.

Types of right

  • Ground Water Certificate126
  • Statement Of Claim119
  • Provisional Permit11
  • Exempt Notice6
  • Conservation District Record1

Purposes

  • Stock102
  • Domestic63
  • Domestic; Stock22
  • Domestic; Lawn And Garden18
  • Irrigation16

DNRC basins

  • 43Q264

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 59006 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)103 wells · 57% · median 30 ft
  • Alluvium (pleistocene)41 wells · 23% · median 30 ft
  • Bearpaw Shale12 wells · 7% · median 80 ft
  • Terrace Deposits (pleistocene)12 wells · 7% · median 26 ft
  • Terrace Deposits (holocene)8 wells · 4% · median 20 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 59006

Petroleum releases

7

2 open · 5 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

6

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 1999. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.