Montana water data · Town in Madison County
Sheridan: well depth, groundwater and water rights
What the public record says about water in Sheridan: 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 168 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)
Wells on record
78
77.1 per sq mi
Median well depth
56 ft
half of wells 38–80 ft
Median static water level
12 ft
66 measurements
Median tested yield
21 gpm
67 pump tests
Well depth
How deep are wells in Sheridan?
Of 76 wells with a recorded total depth, the median is 56 feet. Half were drilled between 38 and 80 feet; one in ten went deeper than 105 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.
Static water level
12 ft
median depth to water at rest · half between 9 and 18 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
21 gpm
median tested yield · half between 15 and 30 gpm
0% of tested wells produced under 5 gallons per minute and 64% 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 Sheridan
2 wells have been completed here since 2016. The newest log on file was completed November 26, 2024. Records run back to 1869.
What the wells are for
- Domestic43
- Irrigation23
- Stockwater5
- Monitoring5
- Public Water Supply4
How they were drilled
- Rotary35
- Cable5
- Auger4
- Forward Rotary3
Drillers filing well logs in Sheridan
- Graham Drilling Inc2 since 2016 · 2024
- Mse5 all-time · 1995
- Lindsay Drilling Co Inc3 all-time · 2001
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 Sheridan
Montana DNRC lists 81 water rights with a point of diversion inside this area: 64 groundwater and 17 surface water, 73 of them active. The median priority date is 1989, and the oldest claim dates to 1864.
Types of right
- Ground Water Certificate49
- Statement Of Claim25
- Provisional Permit5
- Water Reservation1
- Exempt Notice1
Purposes
- Lawn And Garden21
- Domestic18
- Irrigation11
- Stock10
- Domestic; Lawn And Garden7
DNRC basins
- 41C81
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.
Environmental groundwater screening
Documented environmental sites in Sheridan
Petroleum releases
3
1 open · 2 resolved
Superfund program sites
0
none on the National Priorities List
Registered tank facilities
6
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 1994. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.