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Montana water data · Community in Gallatin County

Gallatin Gateway: well depth, groundwater and water rights

What the public record says about water in Gallatin Gateway: 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 1,087 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)

Wells on record

478

81.7 per sq mi

Median well depth

62 ft

half of wells 52–80 ft

Median static water level

29 ft

453 measurements

Median tested yield

35 gpm

459 pump tests

Well depth

How deep are wells in Gallatin Gateway?

Of 468 wells with a recorded total depth, the median is 62 feet. Half were drilled between 52 and 80 feet; one in ten went deeper than 105 feet and one in ten found water shallower than 40 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
22%
50–100 ft
60%
100–200 ft
16%
200–300 ft
0%
300–500 ft
0%
500 ft and deeper
0%

Static water level

29 ft

median depth to water at rest · half between 16 and 43 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

35 gpm

median tested yield · half between 25 and 50 gpm

1% 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 Gallatin Gateway

80 wells have been completed here since 2016, 5 of them in the last twelve months. The newest log on file was completed August 16, 2026. Records run back to 1864.

What the wells are for

  • Domestic375
  • Irrigation36
  • Stockwater33
  • Public Water Supply31
  • Monitoring9

How they were drilled

  • Rotary284
  • Cable82
  • Forward Rotary16
  • Churn15

Drillers filing well logs in Gallatin Gateway

  • Potts Drilling Inc27 since 2016 · 2026
  • Okeefe Drilling Co16 since 2016 · 2017
  • Van Dyken Drilling Inc13 since 2016 · 2026
  • Bridger Drilling Inc12 since 2016 · 2025
  • Diamond M Drilling Inc6 since 2016 · 2025
  • Red Tiger Drilling3 since 2016 · 2024
  • Haggerty Drilling102 all-time · 2004
  • Hulbert24 all-time · 1983

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 Gallatin Gateway

Montana DNRC lists 599 water rights with a point of diversion inside this area: 404 groundwater and 195 surface water, 543 of them active. The median priority date is 1982, and the oldest claim dates to 1866.

Types of right

  • Ground Water Certificate357
  • Statement Of Claim223
  • Exempt Notice9
  • Provisional Permit5
  • 62-73 Ground Water Record3

Purposes

  • Domestic175
  • Irrigation147
  • Domestic; Lawn And Garden66
  • Stock46
  • Domestic; Stock22

DNRC basins

  • 41H599

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 Gallatin Gateway 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 (holocene)10 wells · 37% · median 56 ft
  • Alluvium (quaternary)8 wells · 30% · median 67 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 Gallatin Gateway

Petroleum releases

3

0 open · 3 resolved

Superfund program sites

0

none on the National Priorities List

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 2006. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.