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Montana water data · Community in Lake County

Woods Bay: well depth, groundwater and water rights

What the public record says about water in Woods Bay: 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 288 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (place boundary)

Wells on record

113

83.1 per sq mi

Median well depth

243 ft

half of wells 90–402 ft

Median static water level

48 ft

96 measurements

Median tested yield

25 gpm

108 pump tests

Well depth

How deep are wells in Woods Bay?

Of 106 wells with a recorded total depth, the median is 243 feet. Half were drilled between 90 and 402 feet; one in ten went deeper than 542 feet and one in ten found water shallower than 40 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
14%
50–100 ft
16%
100–200 ft
12%
200–300 ft
23%
300–500 ft
20%
500 ft and deeper
15%

Static water level

48 ft

median depth to water at rest · half between 18 and 100 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 15 and 44 gpm

3% of tested wells produced under 5 gallons per minute and 61% 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 Woods Bay

10 wells have been completed here since 2016, 2 of them in the last twelve months. The newest log on file was completed April 27, 2026. Records run back to 1925.

What the wells are for

  • Domestic88
  • Public Water Supply14
  • Stockwater6
  • Irrigation4
  • Other1

How they were drilled

  • Rotary48
  • Forward Rotary16
  • Air Rotary9
  • Cable8

Drillers filing well logs in Woods Bay

  • Billmayer Drilling5 since 2016 · 2025
  • Oh Well Drilling And Pump4 since 2016 · 2026
  • Liberty Drilling & Pump Co18 all-time · 2003
  • Cyclone Drilling Inc15 all-time · 2014
  • Mcclarty Drilling9 all-time · 1989
  • Hudson5 all-time · 1992
  • Chambers Drilling Company3 all-time · 2000
  • Sudan Drilling3 all-time · 2003

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 Woods Bay

Montana DNRC lists 170 water rights with a point of diversion inside this area: 114 groundwater and 56 surface water, 155 of them active. The median priority date is 1982, and the oldest claim dates to 1891.

Types of right

  • Ground Water Certificate84
  • Statement Of Claim47
  • Provisional Permit28
  • Exempt Notice11

Purposes

  • Domestic84
  • Domestic; Lawn And Garden23
  • Multiple Domestic15
  • Irrigation13
  • Lawn And Garden10

DNRC basins

  • 76LJ170

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 Woods Bay 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.

  • Ravalli Group36 wells · 45% · median 293 ft
  • Alluvium (holocene)16 wells · 20% · median 40 ft
  • Alluvium (pleistocene)16 wells · 20% · median 92 ft
  • Belt Supergroup8 wells · 10% · median 288 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 Woods Bay

Petroleum releases

2

0 open · 2 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

3

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 1996. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.