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Montana water data · Zip Code in Flathead County

ZIP 59912: well depth, groundwater and water rights

What the public record says about water in ZIP code 59912: 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 7,190 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

3,775

20 per sq mi

Median well depth

174 ft

half of wells 118–226 ft

Median static water level

69 ft

3,417 measurements

Median tested yield

26 gpm

3,449 pump tests

Well depth

How deep are wells in ZIP 59912?

Of 3,660 wells with a recorded total depth, the median is 174 feet. Half were drilled between 118 and 226 feet; one in ten went deeper than 334 feet and one in ten found water shallower than 39 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
12%
50–100 ft
9%
100–200 ft
41%
200–300 ft
23%
300–500 ft
12%
500 ft and deeper
3%

Static water level

69 ft

median depth to water at rest · half between 35 and 94 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

26 gpm

median tested yield · half between 17 and 42 gpm

2% of tested wells produced under 5 gallons per minute and 71% 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 59912

657 wells have been completed here since 2016, 35 of them in the last twelve months. The newest log on file was completed September 3, 2026. Records run back to 1890.

What the wells are for

  • Domestic3,275
  • Irrigation228
  • Stockwater194
  • Public Water Supply112
  • Monitoring98

How they were drilled

  • Rotary1,555
  • Cable862
  • Forward Rotary302
  • Churn182

Drillers filing well logs in ZIP 59912

  • Billmayer Drilling85 since 2016 · 2025
  • Davis Brothers Drilling75 since 2016 · 2026
  • Coldwater Drilling And Pumps66 since 2016 · 2025
  • Glazier Drilling64 since 2016 · 2026
  • Oh Well Drilling And Pump50 since 2016 · 2026
  • Chambers Drilling Company47 since 2016 · 2025
  • Cascade Drilling Lp43 since 2016 · 2018
  • Allwest Drilling Inc36 since 2016 · 2025

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 59912

Montana DNRC lists 3,354 water rights with a point of diversion inside this area: 3,010 groundwater and 341 surface water, 3,157 of them active. The median priority date is 1989, and the oldest claim dates to 1884.

Types of right

  • Ground Water Certificate2,504
  • Statement Of Claim510
  • Provisional Permit194
  • Exempt Notice126
  • 62-73 Ground Water Record9

Purposes

  • Domestic1,266
  • Domestic; Lawn And Garden646
  • Domestic; Stock204
  • Irrigation199
  • Domestic; Lawn And Garden; Stock174

DNRC basins

  • 76LJ3,347
  • 76I7

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 59912 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 (pleistocene)947 wells · 44% · median 181 ft
  • Glacial Drift646 wells · 30% · median 136 ft
  • Alluvium (holocene)296 wells · 14% · median 29 ft
  • Glacial Outwash (pleistocene)124 wells · 6% · median 30 ft
  • Pleistocene Valley-fill Alluvium Clean Sand&grav32 wells · 1% · median 442 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 59912

Petroleum releases

24

3 open · 21 resolved

Superfund program sites

2

1 on or proposed for the NPL

Registered tank facilities

35

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 2026. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.