MBMG-157212
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 | |
|---|---|---|
| 0.0-95.0 ft | 4.0 in diameter pvc casing | |
| 95.0-120.0 ft | 4.0 in diameter screen screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-1.0 ft | unknown | TOPSOIL |
| 1.0-5.0 ft | unknown | GRAVELLY CLAY TAN MOIST |
| 5.0-9.0 ft | unknown | SANDY GRAVEL TAN DRY |
| 9.0-14.0 ft | unknown | CLAY REDDISH TAN WET |
| 14.0-16.0 ft | unknown | SANDY GRAVEL TAN DRY |
| 16.0-65.0 ft | unknown | CLAY BROWN SOME SMALL GRAVEL WET |
| 65.0-95.0 ft | unknown | CLAY YELLOW SOME SMALL GRAVEL |
| 95.0-105.0 ft | unknown | SILTY GRAVEL YELLOW SOME SAND WATER AT 95 FEET |
| 105.0-117.0 ft | unknown | CLAY YELLOW SOME GRAVELS SOME WATER |
| 117.0-120.0 ft | unknown | SILTY GRAVEL YELLOW SOME SAND WATER 80-100 GPM |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-157212 Site Number 157212 Site Type WELL Lat/Long (NAD83) 46.929, -114.1089 Well Depth 120 Feet Elevation (NAVD88) 3196.25 ft Latitude 46.92902305 Longitude -114.1089461 Local Aquifer Name 112ALVM ALLUVIUM (PLEISTOCENE) (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 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 87.98 83.53 75.84 1996-06-04 2025-11-04 820 29.4 85.58 10.53 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 87.50 87.39 86.66 85.68 84.27 83.59 83.37 17 17 Apr 87.98 87.67 86.95 86.37 83.87 83.46 83.30 13 13 May 86.25 86.00 85.19 83.73 80.42 78.69 78.58 12 12 Jun 84.78 84.63 83.44 81.88 80.02 78.53 76.94 21 21 Jul 83.27 83.23 82.50 81.08 79.34 78.33 78.30 13 13 Aug 85.03 84.39 83.00 80.81 78.49 76.85 75.84 13 13 Sep 84.44 84.37 83.69 81.86 81.01 79.87 79.82 11 11 Oct 85.15 85.03 84.03 83.73 82.75 82.04 81.92 11 11 Nov 86.33 85.60 84.62 83.73 81.97 80.62 80.28 18 18 Statistics Calculated 2026-05-18 -
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