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Montana water data · Zip Code in Phillips County

ZIP 59546: well depth, groundwater and water rights

What the public record says about water in ZIP code 59546: 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 326 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

128

1.4 per sq mi

Median well depth

104 ft

half of wells 42–297 ft

Median static water level

40 ft

89 measurements

Median tested yield

10 gpm

63 pump tests

Well depth

How deep are wells in ZIP 59546?

Of 110 wells with a recorded total depth, the median is 104 feet. Half were drilled between 42 and 297 feet; one in ten went deeper than 507 feet and one in ten found water shallower than 27 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
32%
50–100 ft
17%
100–200 ft
16%
200–300 ft
10%
300–500 ft
14%
500 ft and deeper
11%

Static water level

40 ft

median depth to water at rest · half between 26 and 95 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

10 gpm

median tested yield · half between 5 and 20 gpm

22% of tested wells produced under 5 gallons per minute and 27% 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 59546

2 wells have been completed here since 2016. The newest log on file was completed July 5, 2019. Records run back to 1920.

What the wells are for

  • Monitoring68
  • Domestic32
  • Stockwater14
  • Other10
  • Irrigation5

How they were drilled

  • Rotary53
  • Air Rotary31
  • Churn3
  • Unknown2

Drillers filing well logs in ZIP 59546

  • Lang Exploratory Drilling26 all-time · 1997
  • H & H Drilling22 all-time · 1990
  • Singley Drilling6 all-time · 1992
  • Murrays Well Service6 all-time · 2006
  • Simpson Drilling Co.5 all-time · 1967
  • Pc Exploration4 all-time · 1993
  • Schick4 all-time · 1985
  • Moat3 all-time · 1994

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 59546

Montana DNRC lists 191 water rights with a point of diversion inside this area: 97 groundwater and 94 surface water, 178 of them active. The median priority date is 1949, and the oldest claim dates to 1897.

Types of right

  • Statement Of Claim134
  • Ground Water Certificate41
  • Provisional Permit8
  • Stockwater Permit6
  • Exempt Notice1

Purposes

  • Stock88
  • Domestic30
  • Irrigation21
  • Mining18
  • Wildlife5

DNRC basins

  • 40EJ188
  • 40I2
  • 40M1

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 59546 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.

  • Kootenai Formation7 wells · 27% · median 80 ft
  • Alluvial Fan Deposits (holocene)5 wells · 19% · median 27 ft
  • Alluvium (quaternary)5 wells · 19% · median 32 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 59546

Petroleum releases

1

0 open · 1 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

6

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 1991. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.