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Montana water data · Zip Code in Missoula County

ZIP 59802: well depth, groundwater and water rights

What the public record says about water in ZIP code 59802: 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 2,769 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

1,253

27.6 per sq mi

Median well depth

90 ft

half of wells 65–116 ft

Median static water level

47 ft

1,011 measurements

Median tested yield

30 gpm

962 pump tests

Well depth

How deep are wells in ZIP 59802?

Of 1,154 wells with a recorded total depth, the median is 90 feet. Half were drilled between 65 and 116 feet; one in ten went deeper than 142 feet and one in ten found water shallower than 50 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
9%
50–100 ft
53%
100–200 ft
33%
200–300 ft
3%
300–500 ft
2%
500 ft and deeper
1%

Static water level

47 ft

median depth to water at rest · half between 30 and 65 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

30 gpm

median tested yield · half between 20 and 50 gpm

3% of tested wells produced under 5 gallons per minute and 79% 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 59802

90 wells have been completed here since 2016, 4 of them in the last twelve months. The newest log on file was completed August 6, 2026. Records run back to 1891.

What the wells are for

  • Domestic888
  • Irrigation86
  • Monitoring84
  • Public Water Supply84
  • Other32

How they were drilled

  • Rotary620
  • Churn105
  • Cable92
  • Unknown44

Drillers filing well logs in ZIP 59802

  • Jeromes Drilling Co20 since 2016 · 2022
  • Camp Well Drilling And Pump Service15 since 2016 · 2025
  • Western Montana Drilling Co.14 since 2016 · 2026
  • Camp Well Drilling & Pump Supply13 since 2016 · 2024
  • Okeefe Drilling Co8 since 2016 · 2022
  • Cascade Drilling Lp7 since 2016 · 2024
  • Eslinger Drilling & Pump Service5 since 2016 · 2022
  • Coldwater Drilling And Pumps4 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 59802

Montana DNRC lists 1,353 water rights with a point of diversion inside this area: 988 groundwater and 365 surface water, 1,227 of them active. The median priority date is 1976, and the oldest claim dates to 1866.

Types of right

  • Ground Water Certificate620
  • Statement Of Claim599
  • Exempt Notice65
  • Provisional Permit57
  • 62-73 Ground Water Record8

Purposes

  • Domestic406
  • Irrigation334
  • Domestic; Lawn And Garden161
  • Stock77
  • Commercial47

DNRC basins

  • 76M1,137
  • 76G183
  • 76F33

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 59802 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)495 wells · 57% · median 96 ft
  • Alluvium (holocene)235 wells · 27% · median 57 ft
  • Belt Supergroup60 wells · 7% · median 130 ft
  • Sediments (tertiary)50 wells · 6% · median 120 ft
  • Sand And Gravel (pleistocene)10 wells · 1% · median 119 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 59802

Petroleum releases

70

1 open · 69 resolved

Superfund program sites

4

2 on or proposed for the NPL

Registered tank facilities

89

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 2022. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.