MBMG-242406
Montana Bureau of Mines and Geology
Located in Beaverhead 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 | |
|---|---|---|
| -1.85-83.0 ft | 6.0 in diameter a53b steel casing | |
| 63.0-83.0 ft | 5.0 in diameter screen-continuous-stainless screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-20.0 ft | unknown | GRAVEL AND COARSE SAND |
| 20.0-25.0 ft | unknown | GRAVEL AND COARSE SAND, SOME COBBLES |
| 25.0-27.0 ft | unknown | BROWN GREY CLAY |
| 27.0-30.0 ft | unknown | BROWN TAN CLAY |
| 30.0-38.0 ft | unknown | GREY CLAY |
| 38.0-40.0 ft | unknown | GREY SILTSTONE FRAGMENTS |
| 40.0-42.0 ft | unknown | GREY SILTY CLAY |
| 42.0-53.0 ft | unknown | GREY SILTSTONE FRAGMENTS |
| 53.0-58.0 ft | unknown | MEDIUM SANDSTONE WITH SILT, WELL INDURATED |
| 58.0-62.0 ft | unknown | GREY SILTSTONE, INDURATED |
| 62.0-65.0 ft | unknown | FINE SANDSTONE, WELL INDURATED |
| 65.0-68.0 ft | unknown | COARSE SAND WITH FRAGMENTS OF FINE SANDSTONE |
| 68.0-75.0 ft | unknown | GREY SILTY TO MEDIUM SANDSTONE, WELL INDURATED, ABUNDANT WATER |
| 78.0-80.0 ft | unknown | CLAY |
| 80.0-86.0 ft | unknown | GREY SILTSTONE, LOOSELY INDURATED, NO WATER |
| 86.0-88.0 ft | unknown | FINE SANDSTONE, WELL INDURATED |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-242406 Site Number 242406 Site Type WELL Lat/Long (NAD83) 45.376, -112.4997 Well Depth 91 Feet Elevation (NAVD88) 4847.14 ft Latitude 45.37604 Longitude -112.499674 Local Aquifer Name 120SNGR (None) National Aquifer Name Northern Rocky Mountains Intermontane Basins aquifer systems (S100NRMTIB) Aquifer Type CONFINED 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 7.49 6.63 4.84 2008-02-22 2026-04-01 3576 18.2 7.05 0.0 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 6.59 6.59 6.54 6.49 6.34 6.13 6.10 11 11 Feb 7.36 7.24 6.65 6.49 6.20 5.91 5.87 12 12 Mar 7.32 7.24 6.97 6.79 6.64 6.31 6.27 13 13 Apr 7.05 7.04 6.96 6.83 6.74 6.56 6.53 14 14 May 7.02 7.01 6.98 6.89 6.66 6.56 6.53 13 13 Jun 7.25 7.15 6.96 6.80 6.58 6.44 6.43 13 13 Jul 7.36 7.29 7.05 6.97 6.68 6.37 6.30 12 12 Aug 7.21 7.17 7.04 6.94 6.75 6.66 6.63 13 13 Sep 7.11 7.07 6.85 6.57 6.44 6.25 6.19 12 12 Oct 6.62 6.60 6.50 6.42 6.27 6.09 6.02 13 13 Nov 6.63 6.62 6.54 6.49 6.44 6.20 6.18 12 12 Dec 6.69 6.69 6.64 6.50 6.28 5.46 4.98 13 13 Statistics Calculated 2026-05-19 -
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