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Montana water data · Zip Code in Stillwater County

ZIP 59001: well depth, groundwater and water rights

What the public record says about water in ZIP code 59001: 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 1,886 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

718

5 per sq mi

Median well depth

42 ft

half of wells 31–100 ft

Median static water level

13 ft

667 measurements

Median tested yield

30 gpm

660 pump tests

Well depth

How deep are wells in ZIP 59001?

Of 690 wells with a recorded total depth, the median is 42 feet. Half were drilled between 31 and 100 feet; one in ten went deeper than 160 feet and one in ten found water shallower than 25 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
53%
50–100 ft
21%
100–200 ft
19%
200–300 ft
5%
300–500 ft
2%
500 ft and deeper
0%

Static water level

13 ft

median depth to water at rest · half between 8 and 26 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

30 gpm

median tested yield · half between 15 and 40 gpm

5% of tested wells produced under 5 gallons per minute and 72% 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 59001

117 wells have been completed here since 2016, 22 of them in the last twelve months. The newest log on file was completed July 28, 2026. Records run back to 1893.

What the wells are for

  • Domestic492
  • Stockwater202
  • Irrigation97
  • Monitoring31
  • Public Water Supply15

How they were drilled

  • Rotary474
  • Churn50
  • Cable42
  • Unknown17

Drillers filing well logs in ZIP 59001

  • Aaqua Drilling Inc101 since 2016 · 2026
  • Douglas Drilling6 since 2016 · 2025
  • American Drilling & Supply3 since 2016 · 2018
  • Bertram Drilling Inc3 since 2016 · 2026
  • Pro Pump & Equipment Inc1 since 2016 · 2017
  • B & H Drilling107 all-time · 2003
  • B & H37 all-time · 2000
  • Rock Creek Drilling Inc14 all-time · 2004

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 59001

Montana DNRC lists 1,144 water rights with a point of diversion inside this area: 645 groundwater and 499 surface water, 1,066 of them active. The median priority date is 1962, and the oldest claim dates to 1870.

Types of right

  • Statement Of Claim619
  • Ground Water Certificate466
  • Provisional Permit39
  • Exempt Notice11
  • Conservation District Record3

Purposes

  • Stock447
  • Irrigation212
  • Domestic202
  • Domestic; Lawn And Garden95
  • Lawn And Garden57

DNRC basins

  • 43C1,117
  • 43QJ26
  • 43D1

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 59001 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)285 wells · 47% · median 33 ft
  • Fort Union Formation196 wells · 32% · median 109 ft
  • Livingston Igneous Series (of Livingston Group)20 wells · 3% · median 93 ft
  • Sand And Gravel (quaternary)17 wells · 3% · median 33 ft
  • Lance-hell Creek Undifferentiated17 wells · 3% · median 80 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 59001

Petroleum releases

13

2 open · 11 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

11

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 2017. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.