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Montana water data · Zip Code in Cascade County

ZIP 59483: well depth, groundwater and water rights

What the public record says about water in ZIP code 59483: 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 350 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

98

1.2 per sq mi

Median well depth

50 ft

half of wells 33–100 ft

Median static water level

17 ft

89 measurements

Median tested yield

15 gpm

93 pump tests

Well depth

How deep are wells in ZIP 59483?

Of 91 wells with a recorded total depth, the median is 50 feet. Half were drilled between 33 and 100 feet; one in ten went deeper than 160 feet and one in ten found water shallower than 22 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
43%
50–100 ft
29%
100–200 ft
20%
200–300 ft
5%
300–500 ft
0%
500 ft and deeper
3%

Static water level

17 ft

median depth to water at rest · half between 8 and 30 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

15 gpm

median tested yield · half between 7 and 25 gpm

12% of tested wells produced under 5 gallons per minute and 46% 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 59483

26 wells have been completed here since 2016, 3 of them in the last twelve months. The newest log on file was completed March 3, 2026. Records run back to 1880.

What the wells are for

  • Domestic71
  • Stockwater25
  • Irrigation7
  • Industrial2
  • Public Water Supply2

How they were drilled

  • Rotary47
  • Cable18
  • Air Rotary2
  • Cable Tool2

Drillers filing well logs in ZIP 59483

  • Aquasource Drilling Llc10 since 2016 · 2023
  • Hl Ventures Llc5 since 2016 · 2022
  • Aquasource Inc Llc4 since 2016 · 2022
  • 406 Water Wells, Llc3 since 2016 · 2026
  • Pat Byrne Drilling Inc1 since 2016 · 2018
  • Poverty Drilling13 all-time · 2008
  • Byrne8 all-time · 1992
  • Boland Drilling8 all-time · 2006

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 59483

Montana DNRC lists 246 water rights with a point of diversion inside this area: 138 groundwater and 108 surface water, 227 of them active. The median priority date is 1958, and the oldest claim dates to 1867.

Types of right

  • Statement Of Claim142
  • Ground Water Certificate91
  • Provisional Permit8
  • Exempt Notice3
  • Stockwater Permit1

Purposes

  • Stock105
  • Irrigation37
  • Domestic30
  • Domestic; Stock17
  • Domestic; Lawn And Garden12

DNRC basins

  • 41K166
  • 41QJ80

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 59483 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)19 wells · 23% · median 27 ft
  • Ferdig Shale Member (of Marias River Fm.)12 wells · 15% · median 100 ft
  • Sand And Gravel (pleistocene)12 wells · 15% · median 43 ft
  • Alluvium (quaternary)11 wells · 13% · median 25 ft
  • Colorado Shale Or Fm. (of Colorado Group)8 wells · 10% · median 95 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 59483

Petroleum releases

2

0 open · 2 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

4

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 1993. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.