MBMG-151190
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 | |
|---|---|---|
| 0.0-76.3 ft | 4.0 in diameter pvc casing | |
| 66.3-76.3 ft | 4.0 in diameter #60 slot screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-15.0 ft | unknown | SAND AND GRAVEL |
| 15.0-25.0 ft | unknown | GRAVEL |
| 25.0-30.0 ft | unknown | COARSE GRAINED SAND AND GRAVEL. |
| 30.0-35.0 ft | unknown | VERY FINE GRAINED SAND - CLAY - AND GRAVEL. |
| 35.0-70.0 ft | unknown | COARSE GRAINED GRAVEL |
| 70.0-76.3 ft | unknown | BOTTOM OF HOLE |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-151190 Site Number 151190 Site Type WELL Lat/Long (NAD83) 46.8579, -114.0025 Well Depth 76.3 Feet Elevation (NAVD88) 3204.27 ft Latitude 46.85793 Longitude -114.00252 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 72.65 66.23 52.66 1986-07-27 2026-02-16 7540 39.6 67.71 77.78 Statistics Calculated 2026-05-16 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 71.59 69.68 69.36 67.75 66.96 66.04 65.06 24 24 Feb 72.05 70.39 69.69 68.47 67.69 66.79 65.21 26 26 Mar 72.35 70.53 69.86 68.87 67.72 66.51 65.32 31 31 Apr 72.52 70.19 69.17 67.97 66.54 63.45 62.40 26 26 May 70.99 68.83 66.16 63.84 61.16 57.76 54.89 23 23 Jun 63.56 62.89 62.37 60.17 57.42 54.65 53.75 29 29 Jul 65.24 64.38 63.23 62.16 59.72 57.73 56.00 26 26 Aug 68.28 66.49 65.97 64.05 62.01 61.13 59.68 30 30 Sep 69.21 67.59 66.57 65.58 64.32 62.75 62.39 25 25 Oct 69.23 67.71 66.70 65.91 64.58 63.17 63.03 25 25 Nov 70.09 68.14 67.58 66.54 65.48 64.23 63.49 28 28 Dec 70.88 69.27 68.81 67.57 66.25 65.61 64.35 29 29 Statistics Calculated 2026-05-16 -
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