Montana water data · Zip Code in Lewis and Clark County
ZIP 59410: well depth, groundwater and water rights
What the public record says about water in ZIP code 59410: 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 3,321 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)
Wells on record
713
0.6 per sq mi
Median well depth
50 ft
half of wells 28–130 ft
Median static water level
16 ft
611 measurements
Median tested yield
15 gpm
646 pump tests
Well depth
How deep are wells in ZIP 59410?
Of 677 wells with a recorded total depth, the median is 50 feet. Half were drilled between 28 and 130 feet; one in ten went deeper than 206 feet and one in ten found water shallower than 21 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
16 ft
median depth to water at rest · half between 10 and 35 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
15 gpm
median tested yield · half between 5 and 25 gpm
18% of tested wells produced under 5 gallons per minute and 38% 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 59410
208 wells have been completed here since 2016, 29 of them in the last twelve months. The newest log on file was completed September 10, 2026. Records run back to 1870.
What the wells are for
- Domestic515
- Stockwater206
- Irrigation24
- Monitoring23
- Public Water Supply22
How they were drilled
- Rotary317
- Cable Tool60
- Cable36
- Air Rotary23
Drillers filing well logs in ZIP 59410
- Western Water Wells51 since 2016 · 2026
- 406 Water Wells, Llc48 since 2016 · 2026
- Hl Ventures Llc34 since 2016 · 2025
- Mt Poverty Water Well Drilling29 since 2016 · 2020
- Aquasource Drilling Llc25 since 2016 · 2025
- Aaaa Water Well Drilling Inc9 since 2016 · 2026
- Aquasource Inc Llc7 since 2016 · 2021
- A-10 Drilling2 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 59410
Montana DNRC lists 2,583 water rights with a point of diversion inside this area: 1,285 groundwater and 1,298 surface water, 2,384 of them active. The median priority date is 1915, and the oldest claim dates to 1860.
Types of right
- Statement Of Claim1,982
- Ground Water Certificate435
- Stockwater Permit58
- Provisional Permit47
- Exempt Notice31
Purposes
- Stock1,413
- Domestic430
- Irrigation418
- Domestic; Lawn And Garden60
- Commercial37
DNRC basins
- 41K2,173
- 41U409
- 76F1
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 59410 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)48 wells · 45% · median 21 ft
- Sediments (tertiary)29 wells · 27% · median 18 ft
- Sediments (pliocene)7 wells · 7% · median 18 ft
- Two Medicine Formation (of Montana Group)7 wells · 7% · median 63 ft
- Virgelle Sandstone Member (of Eagle Sandstone)6 wells · 6% · median 65 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 59410
Petroleum releases
10
0 open · 10 resolved
Superfund program sites
0
none on the National Priorities List
Registered tank facilities
15
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 2020. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.