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Montana water data · City in Sheridan County

Plentywood: well depth, groundwater and water rights

What the public record says about water in Plentywood: 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 247 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)

Wells on record

107

78.9 per sq mi

Median well depth

60 ft

half of wells 50–84 ft

Median static water level

28 ft

67 measurements

Median tested yield

15 gpm

73 pump tests

Well depth

How deep are wells in Plentywood?

Of 104 wells with a recorded total depth, the median is 60 feet. Half were drilled between 50 and 84 feet; one in ten went deeper than 137 feet and one in ten found water shallower than 38 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
23%
50–100 ft
60%
100–200 ft
13%
200–300 ft
3%
300–500 ft
2%
500 ft and deeper
0%

Static water level

28 ft

median depth to water at rest · half between 22 and 32 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

15 gpm

median tested yield · half between 10 and 20 gpm

7% of tested wells produced under 5 gallons per minute and 30% 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 Plentywood

3 wells have been completed here since 2016. The newest log on file was completed May 14, 2022. Records run back to 1931.

What the wells are for

  • Domestic35
  • Irrigation34
  • Unused18
  • Public Water Supply10
  • Monitoring8

How they were drilled

  • Rotary45
  • Forward Rotary27
  • Hydraulic Rotary6
  • Unknown2

Drillers filing well logs in Plentywood

  • Dls Contracting2 since 2016 · 2016
  • Mark Adair Drilling28 all-time · 2009
  • Western Drilling Co.20 all-time · 1986
  • Hansen Environmental Drilling7 all-time · 2005
  • Layne-western5 all-time · 1945
  • Peterson5 all-time · 1981
  • Layne-minnesota4 all-time · 1957
  • Askin Drilling3 all-time · 1936

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 Plentywood

Montana DNRC lists 75 water rights with a point of diversion inside this area: 74 groundwater and 1 surface water, 69 of them active. The median priority date is 1986, and the oldest claim dates to 1936.

Types of right

  • Ground Water Certificate64
  • Statement Of Claim9
  • Provisional Permit2

Purposes

  • Lawn And Garden38
  • Domestic19
  • Municipal5
  • Commercial3
  • Domestic; Lawn And Garden2

DNRC basins

  • 40R75

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 Plentywood 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)16 wells · 43% · median 55 ft
  • Glacial Outwash (pleistocene)12 wells · 32% · median 59 ft
  • Fort Union Formation8 wells · 22% · median 147 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 Plentywood

Petroleum releases

29

0 open · 29 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

36

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 2003. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.