Montana water data · Zip Code in Stillwater County
ZIP 59019: well depth, groundwater and water rights
What the public record says about water in ZIP code 59019: 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 3,574 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)
Wells on record
1,748
5.7 per sq mi
Median well depth
70 ft
half of wells 40–150 ft
Median static water level
30 ft
1,449 measurements
Median tested yield
18 gpm
1,440 pump tests
Well depth
How deep are wells in ZIP 59019?
Of 1,610 wells with a recorded total depth, the median is 70 feet. Half were drilled between 40 and 150 feet; one in ten went deeper than 310 feet and one in ten found water shallower than 25 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
30 ft
median depth to water at rest · half between 15 and 55 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
18 gpm
median tested yield · half between 5 and 30 gpm
23% of tested wells produced under 5 gallons per minute and 49% 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 59019
226 wells have been completed here since 2016, 27 of them in the last twelve months. The newest log on file was completed September 18, 2026. Records run back to 1875.
What the wells are for
- Domestic1,163
- Stockwater391
- Irrigation175
- Monitoring160
- Public Water Supply21
How they were drilled
- Rotary1,106
- Cable85
- Churn46
- Hollowstem Auger32
Drillers filing well logs in ZIP 59019
- Aaqua Drilling Inc155 since 2016 · 2026
- A-1 Drilling16 since 2016 · 2026
- American Drilling & Supply14 since 2016 · 2026
- Douglas Drilling11 since 2016 · 2025
- Bertram Drilling Inc9 since 2016 · 2026
- Haz Tech Drilling Inc6 since 2016 · 2020
- Pioneer Technical Services Inc3 since 2016 · 2022
- Aaqua Drilling3 since 2016 · 2025
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 59019
Montana DNRC lists 1,775 water rights with a point of diversion inside this area: 1,337 groundwater and 438 surface water, 1,645 of them active. The median priority date is 1983, and the oldest claim dates to 1862.
Types of right
- Ground Water Certificate1,002
- Statement Of Claim691
- Provisional Permit44
- Exempt Notice22
- Stockwater Permit6
Purposes
- Stock675
- Domestic422
- Lawn And Garden127
- Domestic; Lawn And Garden122
- Irrigation122
DNRC basins
- 43QJ1,044
- 43C698
- 43D21
- 43Q8
- 43B4
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 59019 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.
- Lance-hell Creek Undifferentiated263 wells · 19% · median 100 ft
- Alluvium (quaternary)228 wells · 16% · median 40 ft
- Judith River Formation (of Montana Group)224 wells · 16% · median 155 ft
- Fort Union Formation174 wells · 12% · median 110 ft
- Sand And Gravel (quaternary)132 wells · 9% · median 40 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 59019
Petroleum releases
28
9 open · 19 resolved
Superfund program sites
1
1 on or proposed for the NPL
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 2022. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.