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Montana water data · Zip Code in Sheridan County

ZIP 59275: well depth, groundwater and water rights

What the public record says about water in ZIP code 59275: 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 935 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

486

1.3 per sq mi

Median well depth

80 ft

half of wells 28–140 ft

Median static water level

30 ft

307 measurements

Median tested yield

10 gpm

232 pump tests

Well depth

How deep are wells in ZIP 59275?

Of 437 wells with a recorded total depth, the median is 80 feet. Half were drilled between 28 and 140 feet; one in ten went deeper than 240 feet and one in ten found water shallower than 17 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
39%
50–100 ft
17%
100–200 ft
29%
200–300 ft
13%
300–500 ft
3%
500 ft and deeper
0%

Static water level

30 ft

median depth to water at rest · half between 13 and 57 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 7 and 30 gpm

7% of tested wells produced under 5 gallons per minute and 31% 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 59275

30 wells have been completed here since 2016. The newest log on file was completed December 7, 2024. Records run back to 1908.

What the wells are for

  • Stockwater159
  • Domestic97
  • Monitoring94
  • Research41
  • Irrigation38

How they were drilled

  • Rotary195
  • Solid Stem Auger31
  • Forward Rotary18
  • Churn10

Drillers filing well logs in ZIP 59275

  • Agri Industries Inc14 since 2016 · 2022
  • S & S Drilling5 since 2016 · 2024
  • Aaqua Drilling Inc4 since 2016 · 2024
  • Dls Contracting3 since 2016 · 2017
  • Water Smith Inc3 since 2016 · 2023
  • Mt Bureau Of Mines & Geology53 all-time · 2005
  • Mark Adair Drilling29 all-time · 2015
  • Montana Salinity Control Association26 all-time · 2011

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 59275

Montana DNRC lists 439 water rights with a point of diversion inside this area: 252 groundwater and 187 surface water, 406 of them active. The median priority date is 1961, and the oldest claim dates to 1904.

Types of right

  • Statement Of Claim258
  • Ground Water Certificate123
  • Provisional Permit26
  • Conservation District Record13
  • Stockwater Permit9

Purposes

  • Stock289
  • Domestic55
  • Irrigation31
  • Domestic; Stock11
  • Multiple Domestic9

DNRC basins

  • 40R439

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 59275 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.

  • Glacial Outwash (pleistocene)116 wells · 42% · median 50 ft
  • Glacial Drift60 wells · 22% · median 45 ft
  • Fort Union Formation46 wells · 17% · median 199 ft
  • Glacial Till40 wells · 15% · median 28 ft
  • Sand And Gravel (pleistocene)7 wells · 3% · median 165 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 59275

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 1993. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.