MBMG-157214
Montana Bureau of Mines and Geology
Located in Missoula 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 | |
|---|---|---|
| 0.0-27.0 ft | 6.0 in diameter steel casing | |
| 0.0-100.0 ft | 4.0 in diameter pvc casing | |
| 90.0-100.0 ft | 4.0 in diameter screen screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-1.0 ft | unknown | TOPSOIL |
| 1.0-75.0 ft | unknown | SANDY GRAVEL SOME COBBLES & BOULDERS |
| 75.0-85.0 ft | unknown | GRAVELLY SILT TAN SOME WATER |
| 85.0-94.0 ft | unknown | GRAVELLY SILT SOME CLAY TAN SOME WATER |
| 94.0-100.0 ft | unknown | SILTY GRAVEL SOME CLAY TAN MORE WATER 30-40 GPM |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-157214 Site Number 157214 Site Type WELL Lat/Long (NAD83) 46.9001, -113.9664 Well Depth 100 Feet Elevation (NAVD88) 3442.22 ft Latitude 46.90012429 Longitude -113.9664414 Local Aquifer Name 112ALVM ALLUVIUM (PLEISTOCENE) (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 MONTANA GWIC 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 84.47 75.03 61.21 1996-05-30 2025-11-05 914 29.5 76.72 64.71 Statistics Calculated 2026-05-18 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 Mar 84.47 84.15 81.97 80.33 78.60 76.00 74.76 19 19 Apr 82.73 82.21 79.41 78.84 77.80 76.60 76.24 13 13 May 80.75 78.92 74.77 72.04 67.56 66.13 65.56 16 16 Jun 70.13 69.30 67.82 66.54 65.31 63.26 62.93 18 18 Jul 70.19 69.87 68.84 67.42 66.31 64.44 63.97 12 12 Aug 72.87 72.42 70.69 68.88 65.12 61.82 61.21 12 12 Sep 75.71 75.62 73.62 72.89 71.36 67.82 67.50 14 14 Oct 77.30 77.27 75.91 74.38 72.93 71.19 71.00 10 10 Nov 78.89 78.60 78.13 77.00 75.99 74.07 71.47 16 16 Statistics Calculated 2026-05-18 -
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