Montana WaterReport
Check a property

Montana water data · City in Rosebud County

Forsyth: well depth, groundwater and water rights

What the public record says about water in Forsyth: 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 171 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)

Wells on record

101

87.7 per sq mi

Median well depth

18 ft

half of wells 14–22 ft

Median static water level

7 ft

59 measurements

Median tested yield

28 gpm

20 pump tests

Well depth

How deep are wells in Forsyth?

Of 88 wells with a recorded total depth, the median is 18 feet. Half were drilled between 14 and 22 feet; one in ten went deeper than 87 feet and one in ten found water shallower than 13 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
84%
50–100 ft
7%
100–200 ft
9%
200–300 ft
0%
300–500 ft
0%
500 ft and deeper
0%

Static water level

7 ft

median depth to water at rest · half between 6 and 11 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

28 gpm

median tested yield · half between 20 and 50 gpm

5% of tested wells produced under 5 gallons per minute and 90% 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 Forsyth

17 wells have been completed here since 2016. The newest log on file was completed July 12, 2023. Records run back to 1970.

What the wells are for

  • Monitoring72
  • Irrigation12
  • Domestic10
  • Other5
  • Industrial1

How they were drilled

  • Hollowstem Auger42
  • Rotary15
  • Unknown7
  • Direct Push7

Drillers filing well logs in Forsyth

  • Haz Tech Drilling Inc9 since 2016 · 2020
  • Pioneer Technical Services Inc7 since 2016 · 2023
  • Askin Drilling1 since 2016 · 2020
  • Hansen Environmental Drilling23 all-time · 1998
  • Sunrise Drilling Inc4 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 Forsyth

Montana DNRC lists 23 water rights with a point of diversion inside this area: 19 groundwater and 4 surface water, 22 of them active. The median priority date is 1987, and the oldest claim dates to 1940.

Types of right

  • Ground Water Certificate17
  • Statement Of Claim4
  • Provisional Permit2

Purposes

  • Lawn And Garden11
  • Domestic5
  • Irrigation3
  • Commercial2
  • Municipal2

DNRC basins

  • 42KJ23

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 Forsyth 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.

  • Sand And Gravel (holocene)18 wells · 53% · median 16 ft
  • Alluvium (quaternary)8 wells · 24% · median 50 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 Forsyth

Petroleum releases

25

13 open · 12 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

22

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 2020. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.