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Montana water data · Community in Flathead County

Lakeside: well depth, groundwater and water rights

What the public record says about water in Lakeside: 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 1,561 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)

Wells on record

632

44.9 per sq mi

Median well depth

340 ft

half of wells 224–515 ft

Median static water level

159 ft

591 measurements

Median tested yield

25 gpm

609 pump tests

Well depth

How deep are wells in Lakeside?

Of 618 wells with a recorded total depth, the median is 340 feet. Half were drilled between 224 and 515 feet; one in ten went deeper than 724 feet and one in ten found water shallower than 160 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
2%
50–100 ft
1%
100–200 ft
16%
200–300 ft
21%
300–500 ft
33%
500 ft and deeper
27%

Static water level

159 ft

median depth to water at rest · half between 48 and 280 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 17 and 50 gpm

1% of tested wells produced under 5 gallons per minute and 71% 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 Lakeside

171 wells have been completed here since 2016, 14 of them in the last twelve months. The newest log on file was completed August 4, 2026. Records run back to 1933.

What the wells are for

  • Domestic573
  • Irrigation47
  • Public Water Supply28
  • Stockwater18
  • Monitoring12

How they were drilled

  • Rotary430
  • Air Rotary59
  • Forward Rotary37
  • Dual Rotary25

Drillers filing well logs in Lakeside

  • Coldwater Drilling And Pumps36 since 2016 · 2025
  • Billmayer Drilling23 since 2016 · 2024
  • Allwest Drilling Inc20 since 2016 · 2025
  • Oh Well Drilling And Pump18 since 2016 · 2026
  • Rm Drilling And Well Services14 since 2016 · 2026
  • Glazier Drilling13 since 2016 · 2026
  • Chambers Drilling Company12 since 2016 · 2026
  • Davis Brothers Drilling6 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 Lakeside

Montana DNRC lists 911 water rights with a point of diversion inside this area: 574 groundwater and 337 surface water, 858 of them active. The median priority date is 1989, and the oldest claim dates to 1890.

Types of right

  • Ground Water Certificate506
  • Statement Of Claim292
  • Provisional Permit98
  • Exempt Notice11
  • 62-73 Ground Water Record3

Purposes

  • Domestic399
  • Domestic; Lawn And Garden165
  • Multiple Domestic105
  • Lawn And Garden50
  • Irrigation29

DNRC basins

  • 76LJ911

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 Lakeside 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.

  • Middle Belt Carbonate162 wells · 66% · median 289 ft
  • Belt Supergroup63 wells · 26% · median 319 ft
  • Glacial Outwash (pleistocene)8 wells · 3% · median 17 ft
  • Alluvium (pleistocene)7 wells · 3% · median 200 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 Lakeside

Petroleum releases

7

1 open · 6 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

11

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 2018. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.