Montana water data · Town in Prairie County
Terry: well depth, groundwater and water rights
What the public record says about water in Terry: 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 294 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)
Wells on record
130
166.4 per sq mi
Median well depth
28 ft
half of wells 23–48 ft
Median static water level
13 ft
88 measurements
Median tested yield
20 gpm
89 pump tests
Well depth
How deep are wells in Terry?
Of 126 wells with a recorded total depth, the median is 28 feet. Half were drilled between 23 and 48 feet; one in ten went deeper than 741 feet and one in ten found water shallower than 18 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
13 ft
median depth to water at rest · half between 10 and 17 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
20 gpm
median tested yield · half between 14 and 30 gpm
0% of tested wells produced under 5 gallons per minute and 62% 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 Terry
9 wells have been completed here since 2016. The newest log on file was completed April 23, 2024. Records run back to 1906.
What the wells are for
- Domestic64
- Monitoring29
- Public Water Supply18
- Irrigation11
- Stockwater5
How they were drilled
- Rotary23
- Cable Tool16
- Driven13
- Hollowstem Auger13
Drillers filing well logs in Terry
- West Central Environmental Consultants5 since 2016 · 2024
- Haz Tech Drilling Inc2 since 2016 · 2016
- Higgins Drilling Company2 since 2016 · 2020
- Bond52 all-time · 1989
- Johnson19 all-time · 2004
- Hansen Environmental Drilling8 all-time · 2001
- Maxim Technologies5 all-time · 1999
- Askin Drilling4 all-time · 2014
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 Terry
Montana DNRC lists 143 water rights with a point of diversion inside this area: 143 groundwater and 0 surface water, 134 of them active. The median priority date is 1973, and the oldest claim dates to 1884.
Types of right
- Ground Water Certificate70
- Statement Of Claim68
- Exempt Notice5
Purposes
- Domestic61
- Commercial28
- Lawn And Garden15
- Multiple Domestic10
- Domestic; Lawn And Garden9
DNRC basins
- 42M143
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 Terry 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)53 wells · 60% · median 28 ft
- Colgate Sandstone Member (of Fox Hills Fm.)20 wells · 23% · median 738 ft
- Fox Hills-hell Creek Aquifer12 wells · 14% · median 741 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 Terry
Petroleum releases
14
5 open · 9 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 2013. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.