Montana water data · Zip Code in Glacier County
ZIP 59427: well depth, groundwater and water rights
What the public record says about water in ZIP code 59427: 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 2,508 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)
Wells on record
881
0.6 per sq mi
Median well depth
118 ft
half of wells 38–190 ft
Median static water level
50 ft
596 measurements
Median tested yield
12 gpm
539 pump tests
Well depth
How deep are wells in ZIP 59427?
Of 786 wells with a recorded total depth, the median is 118 feet. Half were drilled between 38 and 190 feet; one in ten went deeper than 299 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
50 ft
median depth to water at rest · half between 19 and 105 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
12 gpm
median tested yield · half between 5 and 33 gpm
18% of tested wells produced under 5 gallons per minute and 40% 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 59427
55 wells have been completed here since 2016, 5 of them in the last twelve months. The newest log on file was completed June 9, 2026. Records run back to 1900.
What the wells are for
- Domestic381
- Stockwater360
- Monitoring161
- Public Water Supply37
- Unused34
How they were drilled
- Rotary175
- Cable39
- Unknown34
- Forward Rotary33
Drillers filing well logs in ZIP 59427
- Aquasource Drilling Llc35 since 2016 · 2025
- Water & Environmental Technologies12 since 2016 · 2025
- 406 Water Wells, Llc6 since 2016 · 2026
- Hl Ventures Llc4 since 2016 · 2024
- Aquasource Inc Llc3 since 2016 · 2022
- Montana Salinity Control Association2 since 2016 · 2020
- Boland Drilling2 since 2016 · 2024
- Okeefe Drilling Co2 since 2016 · 2022
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 59427
Montana DNRC lists 1,507 water rights with a point of diversion inside this area: 569 groundwater and 938 surface water, 1,206 of them active. The median priority date is 1945, and the oldest claim dates to 1855.
Types of right
- Statement Of Claim1,247
- Ground Water Certificate173
- Provisional Permit59
- Exempt Notice14
- Stockwater Permit6
Purposes
- Stock1,047
- Domestic140
- Irrigation114
- Multiple Domestic56
- Domestic; Stock32
DNRC basins
- 41L739
- 40F575
- 40T88
- 41P81
- 41M24
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 59427 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.
- Virgelle Sandstone Member (of Eagle Sandstone)65 wells · 37% · median 271 ft
- Two Medicine Formation (of Montana Group)63 wells · 36% · median 134 ft
- Eagle Sandstone13 wells · 7% · median 298 ft
- Madison Group Or Limestone8 wells · 5% · median 3,300 ft
- Glacial Drift7 wells · 4% · median 38 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 59427
Petroleum releases
48
7 open · 41 resolved
Superfund program sites
2
none on the National Priorities List
Registered tank facilities
70
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.