MBMG-226763
Montana Bureau of Mines and Geology
Located in Gallatin 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 | |
|---|---|---|
| -3.0-7.5 ft | 8.0 in diameter a53b steel casing | |
| -2.5-55.0 ft | 4.0 in diameter pvc-sched 40 casing | |
| 55.0-70.0 ft | 4.0 in diameter screen-continuous-pvc screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-7.0 ft | unknown | GRAY - BROWN SANDY SOIL |
| 7.0-10.0 ft | unknown | TAN GRAVELLY SAND |
| 10.0-15.0 ft | unknown | TAN SANDY PEBBLE GRAVEL |
| 15.0-17.0 ft | unknown | SAND |
| 17.0-29.0 ft | unknown | PEBBLE GRAVEL IN SAND MATRIX |
| 29.0-30.0 ft | unknown | LIGHT TAN CLAYBOUND PEBBLE GRAVEL |
| 30.0-35.0 ft | unknown | LIGHT TAN SANDY CLAY |
| 35.0-42.0 ft | unknown | LIGHT TAN CLAYEY SAND |
| 42.0-46.0 ft | unknown | LIGHT TAN SANDY CLAY |
| 46.0-67.0 ft | unknown | LIGHT TAN CLAY & CALCIUM CARBONATE |
| 67.0-70.0 ft | unknown | LIGHT TAN SAND |
-
Agency Montana Bureau of Mines and Geology Site Name MBMG-226763 Site Number 226763 Site Type WELL Lat/Long (NAD83) 45.8603, -111.3284 Well Depth 70 Feet Elevation (NGVD29) 4240.0 ft Latitude 45.86035 Longitude -111.32844 Local Aquifer Name 120SNGR, SAND AND GRAVEL (TERTIARY) (None) National Aquifer Name Northern Rocky Mountains Intermontane Basins aquifer systems (S100NRMTIB) Aquifer Type UNCONFINED Water-Level Well Type Trend Water-Level Well Characteristics Known Changes 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 -
-
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 34.83 26.87 19.40 2006-06-07 2025-09-09 4337 19.2 26.87 0.0 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 29.48 29.17 28.59 27.99 27.66 27.02 26.88 17 17 Feb 31.17 30.87 30.32 29.51 29.12 28.79 28.63 15 15 Mar 32.43 32.35 31.81 31.12 30.29 30.01 29.87 15 15 Apr 33.47 33.18 32.94 31.96 31.31 30.80 30.65 16 16 May 33.96 33.94 33.61 32.75 31.22 30.29 29.93 16 16 Jun 32.69 32.09 31.36 28.29 25.96 24.40 22.49 16 16 Jul 29.61 29.55 27.14 25.75 23.81 22.67 21.73 17 17 Aug 26.79 26.44 24.94 23.72 21.89 20.98 20.89 17 17 Sep 26.87 25.37 24.54 22.34 20.92 20.31 19.80 17 17 Oct 25.06 24.29 23.91 22.78 21.29 20.45 20.11 18 18 Nov 26.11 25.79 24.80 23.76 23.08 22.35 22.19 15 15 Dec 27.57 27.42 26.51 25.91 25.17 24.71 24.58 16 16 Statistics Calculated 2026-05-16 -
Operated in cooperation with:
