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Montana water data · Zip Code in Broadwater County

ZIP 59643: well depth, groundwater and water rights

What the public record says about water in ZIP code 59643: 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 1,434 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

569

2.1 per sq mi

Median well depth

80 ft

half of wells 46–152 ft

Median static water level

26 ft

522 measurements

Median tested yield

25 gpm

514 pump tests

Well depth

How deep are wells in ZIP 59643?

Of 548 wells with a recorded total depth, the median is 80 feet. Half were drilled between 46 and 152 feet; one in ten went deeper than 297 feet and one in ten found water shallower than 30 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
27%
50–100 ft
33%
100–200 ft
22%
200–300 ft
8%
300–500 ft
9%
500 ft and deeper
1%

Static water level

26 ft

median depth to water at rest · half between 15 and 53 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 20 and 40 gpm

4% of tested wells produced under 5 gallons per minute and 77% 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 59643

88 wells have been completed here since 2016, 3 of them in the last twelve months. The newest log on file was completed January 9, 2026. Records run back to 1868.

What the wells are for

  • Domestic363
  • Stockwater200
  • Irrigation57
  • Monitoring9
  • Public Water Supply7

How they were drilled

  • Rotary220
  • Cable90
  • Unknown30
  • Churn17

Drillers filing well logs in ZIP 59643

  • A-10 Drilling38 since 2016 · 2025
  • H & L Drilling Inc16 since 2016 · 2025
  • Western Water Wells13 since 2016 · 2026
  • Red Tiger Drilling11 since 2016 · 2023
  • Lindsay Drilling Co Inc6 since 2016 · 2018
  • Van Dyken Drilling Inc2 since 2016 · 2025
  • Unknown53 all-time · 1964
  • Potts Drilling Inc17 all-time · 2014

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 59643

Montana DNRC lists 851 water rights with a point of diversion inside this area: 511 groundwater and 340 surface water, 787 of them active. The median priority date is 1954, and the oldest claim dates to 1858.

Types of right

  • Statement Of Claim536
  • Ground Water Certificate263
  • Provisional Permit31
  • Exempt Notice9
  • Reserved Claim7

Purposes

  • Stock308
  • Irrigation239
  • Domestic112
  • Domestic; Lawn And Garden38
  • Domestic; Stock21

DNRC basins

  • 41I851

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 59643 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.

  • Sediments (tertiary)116 wells · 56% · median 93 ft
  • Alluvium (quaternary)72 wells · 34% · median 32 ft
  • Ravalli Group9 wells · 4% · median 55 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 59643

Petroleum releases

4

0 open · 4 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 2002. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.