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Montana water data · Community in Missoula County

Bonner-West Riverside: well depth, groundwater and water rights

What the public record says about water in Bonner-West Riverside: 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 572 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)

Wells on record

278

181.2 per sq mi

Median well depth

100 ft

half of wells 90–120 ft

Median static water level

60 ft

222 measurements

Median tested yield

40 gpm

199 pump tests

Well depth

How deep are wells in Bonner-West Riverside?

Of 239 wells with a recorded total depth, the median is 100 feet. Half were drilled between 90 and 120 feet; one in ten went deeper than 140 feet and one in ten found water shallower than 67 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
2%
50–100 ft
44%
100–200 ft
53%
200–300 ft
1%
300–500 ft
0%
500 ft and deeper
0%

Static water level

60 ft

median depth to water at rest · half between 47 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 25 and 60 gpm

2% of tested wells produced under 5 gallons per minute and 85% 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 Bonner-West Riverside

21 wells have been completed here since 2016, 3 of them in the last twelve months. The newest log on file was completed August 6, 2026. Records run back to 1890.

What the wells are for

  • Domestic184
  • Public Water Supply44
  • Monitoring37
  • Unused5
  • Irrigation3

How they were drilled

  • Rotary152
  • Forward Rotary18
  • Churn8
  • Cable7

Drillers filing well logs in Bonner-West Riverside

  • Jeromes Drilling Co7 since 2016 · 2022
  • Okeefe Drilling Co5 since 2016 · 2026
  • Western Montana Drilling Co.3 since 2016 · 2026
  • Environmental West Exploration1 since 2016 · 2016
  • Camp Well Drilling81 all-time · 2008
  • Jeromes Drilling Co45 all-time · 2008
  • Blackfoot Well Drilling & Pump Service Inc28 all-time · 2008
  • Camp Well Drilling & Pump Supply5 all-time · 2015

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 Bonner-West Riverside

Montana DNRC lists 266 water rights with a point of diversion inside this area: 247 groundwater and 19 surface water, 239 of them active. The median priority date is 1981, and the oldest claim dates to 1895.

Types of right

  • Ground Water Certificate159
  • Statement Of Claim67
  • Exempt Notice30
  • Provisional Permit8
  • 62-73 Ground Water Record2

Purposes

  • Domestic140
  • Domestic; Lawn And Garden37
  • Commercial18
  • Multiple Domestic16
  • Lawn And Garden; Domestic8

DNRC basins

  • 76M201
  • 76F54
  • 76G11

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 Bonner-West Riverside 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)131 wells · 87% · median 99 ft
  • Alluvium (holocene)12 wells · 8% · median 75 ft
  • Sand And Gravel (pleistocene)6 wells · 4% · median 120 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 Bonner-West Riverside

Petroleum releases

18

1 open · 17 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

10

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.