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Montana water data · Zip Code in Park County

ZIP 59086: well depth, groundwater and water rights

What the public record says about water in ZIP code 59086: 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 3,992 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

699

1.1 per sq mi

Median well depth

106 ft

half of wells 60–200 ft

Median static water level

27 ft

627 measurements

Median tested yield

18 gpm

608 pump tests

Well depth

How deep are wells in ZIP 59086?

Of 662 wells with a recorded total depth, the median is 106 feet. Half were drilled between 60 and 200 feet; one in ten went deeper than 280 feet and one in ten found water shallower than 37 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
17%
50–100 ft
27%
100–200 ft
30%
200–300 ft
17%
300–500 ft
8%
500 ft and deeper
1%

Static water level

27 ft

median depth to water at rest · half between 13 and 46 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

18 gpm

median tested yield · half between 9 and 34 gpm

13% of tested wells produced under 5 gallons per minute and 49% 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 59086

77 wells have been completed here since 2016, 4 of them in the last twelve months. The newest log on file was completed August 13, 2026. Records run back to 1880.

What the wells are for

  • Domestic555
  • Stockwater165
  • Irrigation37
  • Public Water Supply20
  • Test Well10

How they were drilled

  • Rotary418
  • Cable71
  • Forward Rotary40
  • Driven Rotary7

Drillers filing well logs in ZIP 59086

  • Hayes Drilling36 since 2016 · 2026
  • Red Tiger Drilling13 since 2016 · 2022
  • Van Dyken Drilling Inc10 since 2016 · 2023
  • Potts Drilling Inc10 since 2016 · 2026
  • Bridger Drilling Inc2 since 2016 · 2020
  • Diamond M Drilling Inc2 since 2016 · 2020
  • Hillman Drilling85 all-time · 2008
  • Haggerty Drilling25 all-time · 2000

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 59086

Montana DNRC lists 3,277 water rights with a point of diversion inside this area: 1,262 groundwater and 2,015 surface water, 3,104 of them active. The median priority date is 1910, and the oldest claim dates to 1858.

Types of right

  • Statement Of Claim2,611
  • Ground Water Certificate546
  • Provisional Permit44
  • Water Reservation32
  • Exempt Notice29

Purposes

  • Stock1,803
  • Irrigation812
  • Domestic304
  • Domestic; Stock51
  • Domestic; Lawn And Garden47

DNRC basins

  • 43A2,968
  • 41I249
  • 43BV28
  • 41H14
  • 43B11

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 59086 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.

  • Fort Union Formation332 wells · 54% · median 103 ft
  • Billman Creek Formation (of Livingston Group)102 wells · 17% · median 100 ft
  • Upper Cretaceous Livingston Group60 wells · 10% · median 80 ft
  • Sedan Formation (upper Cretaceous)46 wells · 8% · median 140 ft
  • Alluvium (quaternary)24 wells · 4% · median 19 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 59086

Petroleum releases

9

1 open · 8 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 2000. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.