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Montana water data · Zip Code in Beaverhead County

ZIP 59739: well depth, groundwater and water rights

What the public record says about water in ZIP code 59739: 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 2,324 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

258

0.3 per sq mi

Median well depth

98 ft

half of wells 60–163 ft

Median static water level

40 ft

226 measurements

Median tested yield

20 gpm

218 pump tests

Well depth

How deep are wells in ZIP 59739?

Of 248 wells with a recorded total depth, the median is 98 feet. Half were drilled between 60 and 163 feet; one in ten went deeper than 240 feet and one in ten found water shallower than 38 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
15%
50–100 ft
38%
100–200 ft
27%
200–300 ft
14%
300–500 ft
6%
500 ft and deeper
1%

Static water level

40 ft

median depth to water at rest · half between 20 and 75 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 15 and 30 gpm

4% of tested wells produced under 5 gallons per minute and 63% 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 59739

39 wells have been completed here since 2016, 2 of them in the last twelve months. The newest log on file was completed May 28, 2026. Records run back to 1888.

What the wells are for

  • Domestic164
  • Stockwater92
  • Monitoring12
  • Irrigation5
  • Public Water Supply2

How they were drilled

  • Rotary111
  • Cable28
  • Dual Rotary16
  • Churn9

Drillers filing well logs in ZIP 59739

  • Graham Drilling Inc15 since 2016 · 2025
  • Lindsay Drilling Co Inc11 since 2016 · 2025
  • Cascade Drilling Lp7 since 2016 · 2019
  • Okeefe Drilling Co2 since 2016 · 2026
  • Van Dyken Drilling Inc2 since 2016 · 2018
  • Morelock8 all-time · 1991
  • Aqua6 all-time · 1983
  • Andrew Well Drilling6 all-time · 1992

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 59739

Montana DNRC lists 2,047 water rights with a point of diversion inside this area: 536 groundwater and 1,511 surface water, 1,679 of them active. The median priority date is 1908, and the oldest claim dates to 1858.

Types of right

  • Statement Of Claim1,670
  • Ground Water Certificate196
  • Compact104
  • Water Reservation26
  • Provisional Permit19

Purposes

  • Stock1,172
  • Irrigation424
  • Fish And Wildlife109
  • Domestic81
  • Wildlife Habitat Maintenance And Enhancement39

DNRC basins

  • 41A1,862
  • 41F116
  • 41B61
  • 41C8

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 59739 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)42 wells · 47% · median 60 ft
  • Sediments (tertiary)19 wells · 21% · median 113 ft
  • Terrace Deposits (pleistocene)6 wells · 7% · median 76 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 59739

Petroleum releases

10

2 open · 8 resolved

Superfund program sites

1

none on the National Priorities List

Registered tank facilities

8

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 2016. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.