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Montana water data · Town in Carbon County

Joliet: well depth, groundwater and water rights

What the public record says about water in Joliet: 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 200 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)

Wells on record

113

411.7 per sq mi

Median well depth

70 ft

half of wells 50–110 ft

Median static water level

18 ft

107 measurements

Median tested yield

30 gpm

105 pump tests

Well depth

How deep are wells in Joliet?

Of 112 wells with a recorded total depth, the median is 70 feet. Half were drilled between 50 and 110 feet; one in ten went deeper than 130 feet and one in ten found water shallower than 20 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
20%
50–100 ft
50%
100–200 ft
28%
200–300 ft
2%
300–500 ft
1%
500 ft and deeper
0%

Static water level

18 ft

median depth to water at rest · half between 14 and 21 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 25 and 45 gpm

1% of tested wells produced under 5 gallons per minute and 84% 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 Joliet

6 wells have been completed here since 2016. The newest log on file was completed May 1, 2025. Records run back to 1904.

What the wells are for

  • Domestic63
  • Irrigation40
  • Stockwater5
  • Public Water Supply5
  • Monitoring3

How they were drilled

  • Rotary84
  • Churn5
  • Cable3
  • Rotary Bored2

Drillers filing well logs in Joliet

  • Aaqua Drilling Inc6 since 2016 · 2025
  • Rock Creek Drilling Inc7 all-time · 2014
  • B & H Drilling6 all-time · 1973
  • Pro Pump & Equipment Inc4 all-time · 1998
  • Anderson Drilling3 all-time · 1957

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 Joliet

Montana DNRC lists 75 water rights with a point of diversion inside this area: 72 groundwater and 3 surface water, 71 of them active. The median priority date is 2000, and the oldest claim dates to 1893.

Types of right

  • Ground Water Certificate68
  • Statement Of Claim5
  • Provisional Permit1
  • Water Reservation1

Purposes

  • Lawn And Garden43
  • Domestic15
  • Domestic; Lawn And Garden6
  • Municipal3
  • Stock2

DNRC basins

  • 43D75

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 Joliet 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.

  • Eagle Sandstone82 wells · 81% · median 90 ft
  • Alluvium (quaternary)15 wells · 15% · median 20 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 Joliet

Petroleum releases

4

0 open · 4 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

8

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 1999. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.