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Montana water data · Zip Code in Cascade County

ZIP 59477: well depth, groundwater and water rights

What the public record says about water in ZIP code 59477: 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 482 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

215

3.2 per sq mi

Median well depth

33 ft

half of wells 29–39 ft

Median static water level

16 ft

148 measurements

Median tested yield

20 gpm

190 pump tests

Well depth

How deep are wells in ZIP 59477?

Of 205 wells with a recorded total depth, the median is 33 feet. Half were drilled between 29 and 39 feet; one in ten went deeper than 75 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
86%
50–100 ft
6%
100–200 ft
5%
200–300 ft
2%
300–500 ft
0%
500 ft and deeper
0%

Static water level

16 ft

median depth to water at rest · half between 12 and 21 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 10 and 40 gpm

5% 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 59477

31 wells have been completed here since 2016, 4 of them in the last twelve months. The newest log on file was completed March 24, 2026. Records run back to 1900.

What the wells are for

  • Domestic155
  • Stockwater72
  • Irrigation23
  • Public Water Supply13
  • Monitoring7

How they were drilled

  • Rotary62
  • Cable15
  • Forward Rotary10
  • Driven6

Drillers filing well logs in ZIP 59477

  • Aquasource Drilling Llc6 since 2016 · 2022
  • Montana Salinity Control Association6 since 2016 · 2018
  • 406 Water Wells, Llc5 since 2016 · 2026
  • Hl Ventures Llc4 since 2016 · 2023
  • Boland Drilling3 since 2016 · 2025
  • Western Water Wells3 since 2016 · 2025
  • Mt Poverty Water Well Drilling2 since 2016 · 2016
  • Poverty Drilling38 all-time · 2008

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 59477

Montana DNRC lists 249 water rights with a point of diversion inside this area: 170 groundwater and 79 surface water, 234 of them active. The median priority date is 1963, and the oldest claim dates to 1860.

Types of right

  • Statement Of Claim123
  • Ground Water Certificate87
  • Exempt Notice18
  • Stockwater Permit15
  • Provisional Permit3

Purposes

  • Stock109
  • Domestic62
  • Irrigation27
  • Domestic; Stock21
  • Domestic; Lawn And Garden10

DNRC basins

  • 41K205
  • 41QJ44

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 59477 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 (holocene)147 wells · 77% · median 32 ft
  • Alluvium (quaternary)22 wells · 12% · median 31 ft
  • Colorado Shale Or Fm. (of Colorado Group)8 wells · 4% · median 125 ft
  • Virgelle Sandstone Member (of Eagle Sandstone)7 wells · 4% · median 80 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 59477

Petroleum releases

1

0 open · 1 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

17

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 1994. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.