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Montana water data · Zip Code in Stillwater County

ZIP 59028: well depth, groundwater and water rights

What the public record says about water in ZIP code 59028: 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 1,645 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

590

1.9 per sq mi

Median well depth

90 ft

half of wells 49–170 ft

Median static water level

19 ft

529 measurements

Median tested yield

18 gpm

552 pump tests

Well depth

How deep are wells in ZIP 59028?

Of 575 wells with a recorded total depth, the median is 90 feet. Half were drilled between 49 and 170 feet; one in ten went deeper than 300 feet and one in ten found water shallower than 26 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
25%
50–100 ft
26%
100–200 ft
28%
200–300 ft
11%
300–500 ft
9%
500 ft and deeper
2%

Static water level

19 ft

median depth to water at rest · half between 9 and 54 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

18 gpm

median tested yield · half between 8 and 30 gpm

14% of tested wells produced under 5 gallons per minute and 50% 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 59028

82 wells have been completed here since 2016, 8 of them in the last twelve months. The newest log on file was completed July 22, 2026. Records run back to 1890.

What the wells are for

  • Domestic491
  • Stockwater123
  • Irrigation43
  • Public Water Supply8
  • Fire Protection3

How they were drilled

  • Rotary348
  • Cable45
  • Forward Rotary37
  • Churn31

Drillers filing well logs in ZIP 59028

  • Aaqua Drilling Inc67 since 2016 · 2026
  • Douglas Drilling5 since 2016 · 2025
  • A-1 Drilling4 since 2016 · 2025
  • Okeefe Drilling Co3 since 2016 · 2023
  • B & H85 all-time · 2001
  • B & H Drilling79 all-time · 2004
  • Rock Creek Drilling Inc11 all-time · 2003
  • B And H9 all-time · 2004

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 59028

Montana DNRC lists 1,051 water rights with a point of diversion inside this area: 520 groundwater and 531 surface water, 1,001 of them active. The median priority date is 1952, and the oldest claim dates to 1890.

Types of right

  • Statement Of Claim604
  • Ground Water Certificate367
  • Provisional Permit49
  • Exempt Notice13
  • Water Reservation9

Purposes

  • Stock327
  • Irrigation263
  • Domestic218
  • Domestic; Lawn And Garden53
  • Domestic; Stock32

DNRC basins

  • 43C1,050
  • 43QJ1

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 59028 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)94 wells · 19% · median 130 ft
  • Lance-hell Creek Undifferentiated59 wells · 12% · median 84 ft
  • Alluvium (quaternary)58 wells · 12% · median 30 ft
  • Fort Union Formation57 wells · 12% · median 78 ft
  • Sand And Gravel (quaternary)45 wells · 9% · 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 59028

Petroleum releases

2

1 open · 1 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

2

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 1995. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.