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Montana water data · Zip Code in Powell County

ZIP 59728: well depth, groundwater and water rights

What the public record says about water in ZIP code 59728: 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 848 public records from MBMG GWIC, Montana DNRC, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

258

1.4 per sq mi

Median well depth

79 ft

half of wells 51–140 ft

Median static water level

29 ft

230 measurements

Median tested yield

20 gpm

230 pump tests

Well depth

How deep are wells in ZIP 59728?

Of 246 wells with a recorded total depth, the median is 79 feet. Half were drilled between 51 and 140 feet; one in ten went deeper than 245 feet and one in ten found water shallower than 40 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
22%
50–100 ft
35%
100–200 ft
28%
200–300 ft
8%
300–500 ft
6%
500 ft and deeper
2%

Static water level

29 ft

median depth to water at rest · half between 15 and 47 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 30 gpm

5% of tested wells produced under 5 gallons per minute and 61% 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 59728

35 wells have been completed here since 2016, 1 of them in the last twelve months. The newest log on file was completed July 16, 2026. Records run back to 1865.

What the wells are for

  • Domestic215
  • Stockwater26
  • Public Water Supply6
  • Monitoring5
  • Irrigation2

How they were drilled

  • Rotary116
  • Air Rotary34
  • Cable24
  • Forward Rotary18

Drillers filing well logs in ZIP 59728

  • H & L Drilling Inc8 since 2016 · 2025
  • A-10 Drilling8 since 2016 · 2024
  • Western Water Wells8 since 2016 · 2025
  • Okeefe Drilling Co5 since 2016 · 2025
  • Aaaa Water Well Drilling Inc3 since 2016 · 2020
  • Lindsay Drilling Co Inc1 since 2016 · 2017
  • H And L Drilling7 all-time · 2010
  • Brazill Drilling6 all-time · 1997

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 59728

Montana DNRC lists 588 water rights with a point of diversion inside this area: 290 groundwater and 298 surface water, 551 of them active. The median priority date is 1920, and the oldest claim dates to 1865.

Types of right

  • Statement Of Claim403
  • Ground Water Certificate151
  • Exempt Notice17
  • Water Reservation9
  • Provisional Permit5

Purposes

  • Stock233
  • Irrigation113
  • Domestic111
  • Domestic; Lawn And Garden46
  • Mining21

DNRC basins

  • 76G587
  • 41E1

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 59728 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)44 wells · 23% · median 61 ft
  • Sand And Gravel (holocene)35 wells · 19% · median 45 ft
  • Elkhorn Mountains Volcanics31 wells · 16% · median 161 ft
  • Sediments (undifferentiated)15 wells · 8% · median 100 ft
  • Sediments (paleozoic)12 wells · 6% · median 110 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 59728

Petroleum releases

0

0 open · 0 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. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.