Montana water data · Zip Code in Park County
ZIP 59018: well depth, groundwater and water rights
What the public record says about water in ZIP code 59018: 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 1,801 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)
Wells on record
461
2.5 per sq mi
Median well depth
117 ft
half of wells 60–240 ft
Median static water level
30 ft
428 measurements
Median tested yield
20 gpm
416 pump tests
Well depth
How deep are wells in ZIP 59018?
Of 439 wells with a recorded total depth, the median is 117 feet. Half were drilled between 60 and 240 feet; one in ten went deeper than 400 feet and one in ten found water shallower than 35 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 16 and 58 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
20 gpm
median tested yield · half between 10 and 35 gpm
12% of tested wells produced under 5 gallons per minute and 50% 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 59018
68 wells have been completed here since 2016, 7 of them in the last twelve months. The newest log on file was completed August 12, 2026. Records run back to 1895.
What the wells are for
- Domestic356
- Stockwater65
- Irrigation29
- Monitoring25
- Public Water Supply11
How they were drilled
- Rotary332
- Cable36
- Forward Rotary24
- Drilled6
Drillers filing well logs in ZIP 59018
- Hayes Drilling44 since 2016 · 2026
- Red Tiger Drilling10 since 2016 · 2025
- Potts Drilling Inc6 since 2016 · 2024
- Van Dyken Drilling Inc2 since 2016 · 2021
- Bridger Drilling Inc2 since 2016 · 2022
- H & L Drilling Inc2 since 2016 · 2017
- Hillman Drilling63 all-time · 2008
- Haggerty Drilling11 all-time · 2002
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 59018
Montana DNRC lists 1,329 water rights with a point of diversion inside this area: 631 groundwater and 698 surface water, 1,182 of them active. The median priority date is 1904, and the oldest claim dates to 1855.
Types of right
- Statement Of Claim971
- Ground Water Certificate301
- Provisional Permit26
- Exempt Notice25
- Water Reservation6
Purposes
- Stock520
- Irrigation400
- Domestic160
- Domestic; Lawn And Garden39
- Domestic; Stock29
DNRC basins
- 43A1,296
- 41H19
- 43B14
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 59018 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.
- Fort Union Formation323 wells · 86% · median 118 ft
- Alluvium (quaternary)29 wells · 8% · median 35 ft
- Sand And Gravel (quaternary)9 wells · 2% · 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 59018
Petroleum releases
5
2 open · 3 resolved
Superfund program sites
0
none on the National Priorities List
Registered tank facilities
6
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 2003. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.