Montana water data · Zip Code in Yellowstone County
ZIP 59106: well depth, groundwater and water rights
What the public record says about water in ZIP code 59106: 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 3,986 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)
Wells on record
2,385
21.3 per sq mi
Median well depth
39 ft
half of wells 30–58 ft
Median static water level
14 ft
2,164 measurements
Median tested yield
30 gpm
2,116 pump tests
Well depth
How deep are wells in ZIP 59106?
Of 2,283 wells with a recorded total depth, the median is 39 feet. Half were drilled between 30 and 58 feet; one in ten went deeper than 93 feet and one in ten found water shallower than 26 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
14 ft
median depth to water at rest · half between 10 and 20 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 20 and 50 gpm
4% of tested wells produced under 5 gallons per minute and 79% 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 59106
616 wells have been completed here since 2016, 53 of them in the last twelve months. The newest log on file was completed September 17, 2026. Records run back to 1890.
What the wells are for
- Domestic1,707
- Irrigation470
- Stockwater258
- Monitoring124
- Public Water Supply38
How they were drilled
- Rotary1,534
- Forward Rotary269
- Cable159
- Unknown39
Drillers filing well logs in ZIP 59106
- American Drilling & Supply198 since 2016 · 2026
- Aaqua Drilling Inc175 since 2016 · 2026
- Bertram Drilling Inc118 since 2016 · 2026
- A-1 Drilling53 since 2016 · 2025
- Haz Tech Drilling Inc23 since 2016 · 2024
- Mayes Drilling Inc17 since 2016 · 2026
- Sk Geotechnical Co12 since 2016 · 2025
- Gary's Drilling Inc.11 since 2016 · 2023
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 59106
Montana DNRC lists 1,574 water rights with a point of diversion inside this area: 1,484 groundwater and 90 surface water, 1,471 of them active. The median priority date is 1998, and the oldest claim dates to 1890.
Types of right
- Ground Water Certificate1,327
- Statement Of Claim160
- Provisional Permit62
- Exempt Notice22
- Stockwater Permit2
Purposes
- Domestic505
- Domestic; Lawn And Garden312
- Lawn And Garden168
- Stock142
- Domestic; Stock71
DNRC basins
- 43Q1,574
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 59106 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.
- Terrace Deposits (pleistocene)526 wells · 36% · median 36 ft
- Terrace Deposits (holocene)487 wells · 34% · median 42 ft
- Alluvium (holocene)132 wells · 9% · median 42 ft
- Eagle Sandstone128 wells · 9% · median 170 ft
- Niobrara Fm. Or Limestone (of Colorado Gp)46 wells · 3% · median 71 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 59106
Petroleum releases
11
0 open · 11 resolved
Superfund program sites
0
none on the National Priorities List
Registered tank facilities
16
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 2015. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.