Montana water data · Zip Code in Madison County
ZIP 59745: well depth, groundwater and water rights
What the public record says about water in ZIP code 59745: 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 536 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)
Wells on record
129
0.8 per sq mi
Median well depth
82 ft
half of wells 58–179 ft
Median static water level
32 ft
107 measurements
Median tested yield
25 gpm
113 pump tests
Well depth
How deep are wells in ZIP 59745?
Of 120 wells with a recorded total depth, the median is 82 feet. Half were drilled between 58 and 179 feet; one in ten went deeper than 301 feet and one in ten found water shallower than 34 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
32 ft
median depth to water at rest · half between 15 and 57 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
25 gpm
median tested yield · half between 15 and 50 gpm
5% of tested wells produced under 5 gallons per minute and 70% 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 59745
17 wells have been completed here since 2016. The newest log on file was completed February 24, 2025. Records run back to 1890.
What the wells are for
- Domestic93
- Stockwater27
- Public Water Supply9
- Monitoring7
- Irrigation6
How they were drilled
- Rotary74
- Churn6
- Cable6
- Hollowstem Auger4
Drillers filing well logs in ZIP 59745
- Potts Drilling Inc5 since 2016 · 2024
- Haz Tech Drilling Inc4 since 2016 · 2018
- Van Dyken Drilling Inc3 since 2016 · 2023
- Red Tiger Drilling3 since 2016 · 2025
- Graham Drilling Inc9 all-time · 2007
- Kevin Haggerty Drilling Inc7 all-time · 2007
- Morelock6 all-time · 1994
- Madison Drilling & Pump Supply5 all-time · 2006
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 59745
Montana DNRC lists 397 water rights with a point of diversion inside this area: 211 groundwater and 186 surface water, 385 of them active. The median priority date is 1943, and the oldest claim dates to 1858.
Types of right
- Statement Of Claim308
- Ground Water Certificate71
- Provisional Permit9
- Exempt Notice5
- Water Reservation3
Purposes
- Stock229
- Irrigation56
- Domestic51
- Domestic; Lawn And Garden11
- Mining8
DNRC basins
- 41F356
- 41G41
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 59745 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.
- Gneiss And Schist (early Proterozoic Or Archean)10 wells · 33% · median 137 ft
- Sand And Gravel (holocene)6 wells · 20% · median 68 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 59745
Petroleum releases
5
1 open · 4 resolved
Superfund program sites
1
none on the National Priorities List
Registered tank facilities
4
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 2017. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.