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Montana water data · Community in Jefferson County

South Hills: well depth, groundwater and water rights

What the public record says about water in South Hills: 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 474 public records from MBMG GWIC, Montana DNRC, US Census (place boundary)

Wells on record

248

42.2 per sq mi

Median well depth

454 ft

half of wells 337–585 ft

Median static water level

224 ft

244 measurements

Median tested yield

18 gpm

241 pump tests

Well depth

How deep are wells in South Hills?

Of 247 wells with a recorded total depth, the median is 454 feet. Half were drilled between 337 and 585 feet; one in ten went deeper than 707 feet and one in ten found water shallower than 240 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
0%
50–100 ft
0%
100–200 ft
6%
200–300 ft
9%
300–500 ft
44%
500 ft and deeper
40%

Static water level

224 ft

median depth to water at rest · half between 154 and 343 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

18 gpm

median tested yield · half between 11 and 25 gpm

4% 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 South Hills

55 wells have been completed here since 2016, 1 of them in the last twelve months. The newest log on file was completed April 8, 2026. Records run back to 1977.

What the wells are for

  • Domestic237
  • Stockwater3
  • Unused3
  • Monitoring2
  • Public Water Supply1

How they were drilled

  • Rotary199
  • Air Rotary25
  • Forward Rotary8
  • Dual Rotary3

Drillers filing well logs in South Hills

  • H & L Drilling Inc21 since 2016 · 2025
  • A-10 Drilling18 since 2016 · 2024
  • Lindsay Drilling Co Inc5 since 2016 · 2022
  • Aaaa Water Well Drilling Inc3 since 2016 · 2024
  • Western Water Wells3 since 2016 · 2022
  • Lindsay Drilling Co3 since 2016 · 2024
  • Treasure State Drilling24 all-time · 2008
  • H And L Drilling8 all-time · 2010

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 South Hills

Montana DNRC lists 226 water rights with a point of diversion inside this area: 217 groundwater and 9 surface water, 216 of them active. The median priority date is 2006, and the oldest claim dates to 1885.

Types of right

  • Ground Water Certificate213
  • Statement Of Claim10
  • Exempt Notice3

Purposes

  • Domestic92
  • Domestic; Lawn And Garden80
  • Lawn And Garden; Domestic15
  • Stock10
  • Domestic; Stock4

DNRC basins

  • 41I226

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.