MBMG-151204
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 | |
|---|---|---|
| 0.0-6.0 ft | 6.0 in diameter steel casing | |
| 0.0-25.0 ft | 4.0 in diameter pvc casing | |
| 5.0-25.0 ft | 4.0 in diameter 0.020 slot screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-7.0 ft | unknown | GRAVEL FILL - BASEROCK FOR ROAD. |
| 7.0-9.0 ft | unknown | SAND FINE GRAINED - GREY/BROWN IN COLOR |
| 9.0-22.0 ft | unknown | GRAVEL/SAND GRAVEL ROUNDED (1/2IN TO 2 IN ) SAND MEDIUM TO COARSE GRAINED. |
| 22.0-25.0 ft | unknown | SAND FINE GRAINED GREY/BROWN IN COLOR. |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-151204 Site Number 151204 Site Type WELL Lat/Long (NAD83) 47.0307, -114.2726 Well Depth 25 Feet Elevation (NGVD29) 3034.0 ft Latitude 47.0307 Longitude -114.2726 Local Aquifer Name 111ALVM ALLUVIUM (HOLOCENE) (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 15.93 13.12 9.70 1995-07-05 2026-02-20 9372 30.6 15.34 7.692 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 14.95 14.85 14.63 14.32 14.06 13.81 13.17 24 24 Feb 15.40 15.21 15.02 14.70 14.37 13.84 13.06 25 25 Mar 15.51 15.37 15.01 14.64 14.31 13.77 12.72 30 30 Apr 15.67 15.60 15.27 14.61 14.26 13.13 12.73 28 28 May 15.51 15.17 14.73 13.78 13.24 12.26 12.11 30 30 Jun 13.66 13.44 13.35 12.43 11.71 11.41 10.73 30 30 Jul 13.06 12.84 12.50 12.14 11.51 11.19 10.32 28 28 Aug 13.31 12.79 12.32 11.90 11.48 11.05 9.76 29 29 Sep 13.59 12.68 12.32 11.82 11.42 11.16 10.00 27 27 Oct 13.63 12.97 12.62 12.26 11.91 11.57 10.22 30 30 Nov 14.21 13.60 13.19 12.92 12.72 12.21 12.04 30 30 Dec 14.69 14.30 13.92 13.52 13.36 12.90 12.37 30 30 Statistics Calculated 2026-05-16 -
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