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Montana water data · Zip Code in Pondera County

ZIP 59425: well depth, groundwater and water rights

What the public record says about water in ZIP code 59425: 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 1,949 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

904

1.6 per sq mi

Median well depth

28 ft

half of wells 18–48 ft

Median static water level

15 ft

241 measurements

Median tested yield

10 gpm

162 pump tests

Well depth

How deep are wells in ZIP 59425?

Of 646 wells with a recorded total depth, the median is 28 feet. Half were drilled between 18 and 48 feet; one in ten went deeper than 99 feet and one in ten found water shallower than 13 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
78%
50–100 ft
12%
100–200 ft
8%
200–300 ft
1%
300–500 ft
0%
500 ft and deeper
0%

Static water level

15 ft

median depth to water at rest · half between 7 and 33 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

10 gpm

median tested yield · half between 5 and 25 gpm

24% of tested wells produced under 5 gallons per minute and 33% 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 59425

38 wells have been completed here since 2016, 4 of them in the last twelve months. The newest log on file was completed August 17, 2026. Records run back to 1900.

What the wells are for

  • Monitoring616
  • Stockwater112
  • Domestic102
  • Test Well25
  • Irrigation17

How they were drilled

  • Unknown136
  • Rotary60
  • Solid Stem Auger52
  • Hollowstem Auger18

Drillers filing well logs in ZIP 59425

  • Montana Salinity Control Association10 since 2016 · 2021
  • Aquasource Drilling Llc8 since 2016 · 2026
  • Boland Drilling7 since 2016 · 2018
  • West Central Environmental Consultants5 since 2016 · 2024
  • Western Water Wells3 since 2016 · 2025
  • Aquasource Inc Llc1 since 2016 · 2022
  • Scott Brown169 all-time · 2006
  • Brown79 all-time · 2002

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 59425

Montana DNRC lists 954 water rights with a point of diversion inside this area: 291 groundwater and 663 surface water, 839 of them active. The median priority date is 1935, and the oldest claim dates to 1875.

Types of right

  • Statement Of Claim837
  • Ground Water Certificate65
  • Provisional Permit27
  • Stockwater Permit18
  • Exempt Notice4

Purposes

  • Stock550
  • Irrigation178
  • Domestic109
  • Multiple Domestic45
  • Lawn And Garden12

DNRC basins

  • 41P818
  • 41O135
  • 41M1

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 59425 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.

  • Sand And Gravel (pleistocene)10 wells · 15% · median 20 ft
  • Virgelle Sandstone Member (of Eagle Sandstone)9 wells · 14% · median 25 ft
  • Glacial Drift8 wells · 12% · median 23 ft
  • Telegraph Creek Formation (of Montana Group)8 wells · 12% · median 102 ft
  • Colorado Shale Or Fm. (of Colorado Group)8 wells · 12% · median 48 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 59425

Petroleum releases

36

9 open · 27 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

55

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 2021. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.