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Montana water data · City in Phillips County

Malta: well depth, groundwater and water rights

What the public record says about water in Malta: 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

181

168.6 per sq mi

Median well depth

30 ft

half of wells 25–30 ft

Median static water level

20 ft

131 measurements

Median tested yield

25 gpm

37 pump tests

Well depth

How deep are wells in Malta?

Of 179 wells with a recorded total depth, the median is 30 feet. Half were drilled between 25 and 30 feet; one in ten went deeper than 51 feet and one in ten found water shallower than 22 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
89%
50–100 ft
9%
100–200 ft
2%
200–300 ft
0%
300–500 ft
0%
500 ft and deeper
0%

Static water level

20 ft

median depth to water at rest · half between 19 and 21 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

25 gpm

median tested yield · half between 10 and 70 gpm

3% of tested wells produced under 5 gallons per minute and 59% 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 Malta

55 wells have been completed here since 2016. The newest log on file was completed June 8, 2023. Records run back to 1909.

What the wells are for

  • Monitoring135
  • Domestic29
  • Irrigation7
  • Stockwater6
  • Public Water Supply6

How they were drilled

  • Hollowstem Auger92
  • Hollow Stem Auger17
  • Bored5
  • Rotary5

Drillers filing well logs in Malta

  • Haz Tech Drilling Inc51 since 2016 · 2019
  • Hansen Environmental Drilling2 since 2016 · 2022
  • Delta Engineering P.c.15 all-time · 1993
  • Sk Geotechnical13 all-time · 2005
  • Simpson Drilling Co.8 all-time · 1977

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 Malta

Montana DNRC lists 23 water rights with a point of diversion inside this area: 21 groundwater and 2 surface water, 22 of them active. The median priority date is 1967, and the oldest claim dates to 1910.

Types of right

  • Statement Of Claim16
  • Ground Water Certificate6
  • Water Reservation1

Purposes

  • Domestic8
  • Commercial5
  • Municipal5
  • Irrigation2
  • Industrial1

DNRC basins

  • 40J23

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 Malta 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 (quaternary)12 wells · 86% · median 41 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 Malta

Petroleum releases

22

11 open · 11 resolved

Superfund program sites

1

none on the National Priorities List

Registered tank facilities

28

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 2024. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.