MBMG-90519
Montana Bureau of Mines and Geology
Located in Lincoln County, Montana, this groundwater monitoring location is associated with a water well in the Northern Rocky Mountains Intermontane Basins aquifer systems.
Well Construction
| Depth | Description | |
|---|---|---|
| -1.0-45.0 ft | 6.0 in diameter steel casing | |
| 45.0-45.0 ft | 6.0 in diameter open bottom * screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-5.0 ft | unknown | CLAY |
| 5.0-18.0 ft | unknown | SILT GRAVEL AND COBBLES |
| 18.0-36.0 ft | unknown | CLAY |
| 36.0-40.0 ft | unknown | SILT AND SMALL GRAVEL |
| 40.0-45.0 ft | unknown | COARSE SAND AND WATER |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-90519 Site Number 90519 Site Type WELL Lat/Long (NAD83) 48.9553, -115.1259 Well Depth 45 Feet Elevation (NAVD88) 2539.45 ft Latitude 48.95528574 Longitude -115.1258647 Local Aquifer Name 112DRFT (None) National Aquifer Name Northern Rocky Mountains Intermontane Basins aquifer systems (S100NRMTIB) Aquifer Type UNCONFINED Water-Level Well Type Trend Water-Level Well Characteristics Background Water Quality Network Additional info Link 1 -
Activity Start Date Activity Start Time Characteristic Name Measure Value Units Detection Limit Value Type Sample Fraction Method Name Analytical Method System Sample Method ID Sample Method ID Context Sample Method Name Activity Type Code Data Provided By -
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How do we calculate statistics?
Overall Water Level Statistics (Depth to water, feet below land surface) Lowest Water Level Median Water Level Highest Water Level First Measurement Date Last Measurement Date Number of Measurements Years of Record Latest Value Latest Percentile 25.44 19.08 6.00 1973-06-04 2026-04-07 3165 52.8 22.07 31.58 Statistics Calculated 2026-05-19 Monthly Water Level Statistics (Depth to water, feet below land surface) Month Lowest Median 10th Percentile 25th Percentile 50th Percentile 75th Percentile 90th Percentile Highest Median Number of Measurements Years of Record Jan 23.64 22.74 21.04 17.73 15.97 12.07 11.93 17 17 Feb 24.64 23.88 22.82 20.51 18.32 17.50 16.35 19 19 Mar 25.29 24.17 22.77 20.79 18.56 15.66 13.38 21 21 Apr 24.43 23.65 22.27 19.63 18.25 16.10 14.73 18 18 May 25.44 24.87 23.75 22.12 19.19 17.82 17.17 19 19 Jun 24.32 22.12 20.11 19.07 15.19 7.89 6.00 22 22 Jul 22.08 19.83 18.33 14.73 12.25 9.36 7.01 20 20 Aug 24.10 22.09 20.57 16.99 14.69 13.63 9.57 23 23 Sep 22.59 21.06 19.89 18.69 14.69 10.76 8.68 22 22 Oct 24.29 21.72 20.21 16.59 15.05 12.10 9.31 27 27 Nov 23.42 23.22 20.95 18.87 15.98 14.92 14.36 18 18 Dec 23.48 23.44 21.76 20.16 17.29 16.15 15.06 18 18 Statistics Calculated 2026-05-19 -
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