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Montana water data · Zip Code in Silver Bow County

ZIP 59701: well depth, groundwater and water rights

What the public record says about water in ZIP code 59701: 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 7,068 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA SEMS, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

3,719

7.3 per sq mi

Median well depth

93 ft

half of wells 47–160 ft

Median static water level

32 ft

2,784 measurements

Median tested yield

20 gpm

2,473 pump tests

Well depth

How deep are wells in ZIP 59701?

Of 3,297 wells with a recorded total depth, the median is 93 feet. Half were drilled between 47 and 160 feet; one in ten went deeper than 248 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.

under 50 ft
26%
50–100 ft
26%
100–200 ft
30%
200–300 ft
11%
300–500 ft
6%
500 ft and deeper
2%

Static water level

32 ft

median depth to water at rest · half between 15 and 55 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 12 and 25 gpm

4% of tested wells produced under 5 gallons per minute and 53% 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 59701

445 wells have been completed here since 2016, 29 of them in the last twelve months. The newest log on file was completed August 24, 2026. Records run back to 1885.

What the wells are for

  • Domestic2,196
  • Monitoring1,017
  • Irrigation199
  • Stockwater105
  • Other39

How they were drilled

  • Rotary883
  • Cable659
  • Hollowstem Auger194
  • Air Rotary169

Drillers filing well logs in ZIP 59701

  • Okeefe Drilling Co265 since 2016 · 2026
  • Ak Drilling Inc44 since 2016 · 2026
  • Ak Drilling Inc.21 since 2016 · 2026
  • Pioneer Technical Services Inc20 since 2016 · 2022
  • H & L Drilling Inc18 since 2016 · 2025
  • Western Water Wells16 since 2016 · 2026
  • Red Tiger Drilling14 since 2016 · 2022
  • A-10 Drilling14 since 2016 · 2026

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 59701

Montana DNRC lists 3,082 water rights with a point of diversion inside this area: 2,428 groundwater and 654 surface water, 2,862 of them active. The median priority date is 1982, and the oldest claim dates to 1858.

Types of right

  • Ground Water Certificate1,770
  • Statement Of Claim1,187
  • Exempt Notice54
  • Provisional Permit41
  • 62-73 Ground Water Record16

Purposes

  • Domestic1,101
  • Stock655
  • Domestic; Lawn And Garden432
  • Irrigation279
  • Lawn And Garden119

DNRC basins

  • 76G2,503
  • 41E391
  • 41G178
  • 41D9
  • 41I1

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 59701 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)581 wells · 42% · median 38 ft
  • Boulder Batholith425 wells · 31% · median 162 ft
  • Sand And Gravel (tertiary)92 wells · 7% · median 98 ft
  • Plutonic Rocks (upper Cretaceous)78 wells · 6% · median 123 ft
  • Sediments (tertiary)70 wells · 5% · median 112 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 59701

Petroleum releases

104

26 open · 78 resolved

Superfund program sites

4

2 on or proposed for the NPL

Registered tank facilities

159

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 2025. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.