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Montana water data · Zip Code in Lewis and Clark County

ZIP 59633: well depth, groundwater and water rights

What the public record says about water in ZIP code 59633: 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 1,110 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

253

1.2 per sq mi

Median well depth

108 ft

half of wells 60–207 ft

Median static water level

22 ft

222 measurements

Median tested yield

20 gpm

222 pump tests

Well depth

How deep are wells in ZIP 59633?

Of 234 wells with a recorded total depth, the median is 108 feet. Half were drilled between 60 and 207 feet; one in ten went deeper than 356 feet and one in ten found water shallower than 30 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.

under 50 ft
21%
50–100 ft
24%
100–200 ft
26%
200–300 ft
15%
300–500 ft
12%
500 ft and deeper
4%

Static water level

22 ft

median depth to water at rest · half between 12 and 45 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 30 gpm

7% of tested wells produced under 5 gallons per minute and 52% 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 59633

33 wells have been completed here since 2016, 6 of them in the last twelve months. The newest log on file was completed August 6, 2026. Records run back to 1860.

What the wells are for

  • Domestic185
  • Stockwater38
  • Irrigation17
  • Monitoring10
  • Industrial4

How they were drilled

  • Rotary121
  • Air Rotary48
  • Unknown27
  • Cable19

Drillers filing well logs in ZIP 59633

  • H & L Drilling Inc12 since 2016 · 2026
  • A-10 Drilling6 since 2016 · 2025
  • Lindsay Drilling Co Inc5 since 2016 · 2024
  • Aaaa Water Well Drilling Inc5 since 2016 · 2025
  • Western Water Wells4 since 2016 · 2026
  • Unknown27 all-time · 1962
  • Treasure State Drilling10 all-time · 2008
  • Brazill Drilling6 all-time · 1998

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 59633

Montana DNRC lists 848 water rights with a point of diversion inside this area: 338 groundwater and 510 surface water, 780 of them active. The median priority date is 1925, and the oldest claim dates to 1858.

Types of right

  • Statement Of Claim637
  • Ground Water Certificate193
  • Provisional Permit10
  • Exempt Notice5
  • Water Reservation3

Purposes

  • Stock398
  • Irrigation149
  • Domestic111
  • Domestic; Lawn And Garden43
  • Mining41

DNRC basins

  • 41QJ716
  • 76G119
  • 41I12
  • 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 59633 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)27 wells · 87% · median 26 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 59633

Petroleum releases

1

0 open · 1 resolved

Superfund program sites

6

none on the National Priorities List

Registered tank facilities

2

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 1993. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.