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Montana water data · Zip Code in Cascade County

ZIP 59443: well depth, groundwater and water rights

What the public record says about water in ZIP code 59443: 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 569 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

265

4.5 per sq mi

Median well depth

30 ft

half of wells 20–55 ft

Median static water level

12 ft

213 measurements

Median tested yield

12 gpm

196 pump tests

Well depth

How deep are wells in ZIP 59443?

Of 225 wells with a recorded total depth, the median is 30 feet. Half were drilled between 20 and 55 feet; one in ten went deeper than 100 feet and one in ten found water shallower than 15 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
71%
50–100 ft
17%
100–200 ft
8%
200–300 ft
3%
300–500 ft
1%
500 ft and deeper
0%

Static water level

12 ft

median depth to water at rest · half between 8 and 20 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

12 gpm

median tested yield · half between 6 and 20 gpm

12% of tested wells produced under 5 gallons per minute and 40% 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 59443

39 wells have been completed here since 2016, 4 of them in the last twelve months. The newest log on file was completed May 18, 2026. Records run back to 1864.

What the wells are for

  • Domestic196
  • Stockwater86
  • Irrigation31
  • Monitoring7
  • Test Well2

How they were drilled

  • Rotary78
  • Cable25
  • Dug6
  • Hand Dug6

Drillers filing well logs in ZIP 59443

  • Aquasource Drilling Llc18 since 2016 · 2026
  • Hl Ventures Llc10 since 2016 · 2024
  • Aaaa Water Well Drilling Inc3 since 2016 · 2022
  • 406 Water Wells, Llc3 since 2016 · 2026
  • Aquasource Inc Llc2 since 2016 · 2021
  • Boland Drilling1 since 2016 · 2025
  • Poverty Drilling20 all-time · 2005
  • Byrne15 all-time · 1999

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 59443

Montana DNRC lists 299 water rights with a point of diversion inside this area: 203 groundwater and 96 surface water, 276 of them active. The median priority date is 1957, and the oldest claim dates to 1864.

Types of right

  • Statement Of Claim176
  • Ground Water Certificate101
  • Exempt Notice13
  • Provisional Permit5
  • Irrigation District2

Purposes

  • Stock107
  • Domestic84
  • Irrigation47
  • Domestic; Stock18
  • Domestic; Lawn And Garden11

DNRC basins

  • 41K299

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 59443 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)66 wells · 29% · median 24 ft
  • Terrace Deposits (pleistocene)57 wells · 25% · median 38 ft
  • Sand And Gravel (holocene)51 wells · 22% · median 19 ft
  • Colorado Shale Or Fm. (of Colorado Group)21 wells · 9% · median 100 ft
  • Alluvium (quaternary)19 wells · 8% · median 25 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 59443

Petroleum releases

3

0 open · 3 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. The most recent release reported here dates to 1995. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.