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Montana water data · Zip Code in Missoula County

ZIP 59801: well depth, groundwater and water rights

What the public record says about water in ZIP code 59801: 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 1,341 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

685

88.8 per sq mi

Median well depth

70 ft

half of wells 56–98 ft

Median static water level

33 ft

515 measurements

Median tested yield

50 gpm

510 pump tests

Well depth

How deep are wells in ZIP 59801?

Of 608 wells with a recorded total depth, the median is 70 feet. Half were drilled between 56 and 98 feet; one in ten went deeper than 119 feet and one in ten found water shallower than 42 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
15%
50–100 ft
61%
100–200 ft
23%
200–300 ft
0%
300–500 ft
0%
500 ft and deeper
0%

Static water level

33 ft

median depth to water at rest · half between 25 and 44 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

50 gpm

median tested yield · half between 30 and 100 gpm

1% of tested wells produced under 5 gallons per minute and 92% 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 59801

34 wells have been completed here since 2016. The newest log on file was completed September 24, 2025. Records run back to 1889.

What the wells are for

  • Domestic362
  • Monitoring101
  • Public Water Supply78
  • Irrigation61
  • Other36

How they were drilled

  • Rotary334
  • Cable57
  • Churn39
  • Backhoe26

Drillers filing well logs in ZIP 59801

  • Camp Well Drilling And Pump Service9 since 2016 · 2025
  • Okeefe Drilling Co7 since 2016 · 2022
  • Cascade Drilling Lp6 since 2016 · 2021
  • Jeromes Drilling Co5 since 2016 · 2025
  • Boland Drilling3 since 2016 · 2016
  • Camp Well Drilling & Pump Supply1 since 2016 · 2018
  • Blackfoot Well Drilling & Pump Service Inc1 since 2016 · 2016
  • Camp Well Drilling176 all-time · 2012

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 59801

Montana DNRC lists 487 water rights with a point of diversion inside this area: 468 groundwater and 19 surface water, 452 of them active. The median priority date is 1982, and the oldest claim dates to 1866.

Types of right

  • Ground Water Certificate282
  • Statement Of Claim109
  • Exempt Notice56
  • Provisional Permit35
  • 62-73 Ground Water Record3

Purposes

  • Domestic158
  • Domestic; Lawn And Garden69
  • Commercial61
  • Irrigation32
  • Lawn And Garden30

DNRC basins

  • 76M444
  • 76H42
  • 76G1

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 59801 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)327 wells · 60% · median 80 ft
  • Alluvium (holocene)183 wells · 34% · median 50 ft
  • Alluvium (quaternary)30 wells · 6% · median 42 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 59801

Petroleum releases

49

0 open · 49 resolved

Superfund program sites

1

none on the National Priorities List

Registered tank facilities

119

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 2019. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.