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Montana water data · Community in Missoula County

East Missoula: well depth, groundwater and water rights

What the public record says about water in East Missoula: 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 255 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (place boundary)

Wells on record

127

105.4 per sq mi

Median well depth

80 ft

half of wells 59–108 ft

Median static water level

37 ft

109 measurements

Median tested yield

40 gpm

107 pump tests

Well depth

How deep are wells in East Missoula?

Of 114 wells with a recorded total depth, the median is 80 feet. Half were drilled between 59 and 108 feet; one in ten went deeper than 152 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
53%
100–200 ft
25%
200–300 ft
5%
300–500 ft
2%
500 ft and deeper
1%

Static water level

37 ft

median depth to water at rest · half between 20 and 70 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

40 gpm

median tested yield · half between 30 and 75 gpm

2% of tested wells produced under 5 gallons per minute and 90% 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 East Missoula

6 wells have been completed here since 2016, 1 of them in the last twelve months. The newest log on file was completed November 11, 2025. Records run back to 1900.

What the wells are for

  • Domestic97
  • Public Water Supply11
  • Irrigation8
  • Monitoring6
  • Stockwater3

How they were drilled

  • Rotary82
  • Cable14
  • Churn9
  • Unknown4

Drillers filing well logs in East Missoula

  • Eslinger Drilling & Pump Service2 since 2016 · 2017
  • Jeromes Drilling Co1 since 2016 · 2017
  • Jeromes Drilling Co28 all-time · 2008
  • Camp Well Drilling22 all-time · 2011
  • Blackfoot Well Drilling & Pump Service Inc17 all-time · 2015
  • Ckc6 all-time · 1993
  • Liberty Drilling & Pump Co4 all-time · 1979
  • Jerome And Okeefe Drilling Co4 all-time · 1978

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 East Missoula

Montana DNRC lists 113 water rights with a point of diversion inside this area: 110 groundwater and 3 surface water, 103 of them active. The median priority date is 1988, and the oldest claim dates to 1896.

Types of right

  • Ground Water Certificate88
  • Statement Of Claim18
  • Exempt Notice4
  • 62-73 Ground Water Record2
  • Provisional Permit1

Purposes

  • Domestic40
  • Domestic; Lawn And Garden22
  • Irrigation7
  • Lawn And Garden5
  • Domestic; Lawn And Garden; Stock4

DNRC basins

  • 76M113

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 East Missoula 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)38 wells · 46% · median 97 ft
  • Alluvium (holocene)37 wells · 45% · median 50 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 East Missoula

Petroleum releases

7

0 open · 7 resolved

Superfund program sites

1

1 on or proposed for the NPL

Registered tank facilities

7

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 2015. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.