MBMG-120777
Montana Bureau of Mines and Geology
Located in Broadwater 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 | |
|---|---|---|
| -2.0-101.0 ft | 6.0 in diameter steel casing | |
| 101.0-101.0 ft | 6.0 in diameter open bottom screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-2.0 ft | unknown | TOPSOIL |
| 2.0-20.0 ft | unknown | GRAVEL SAND |
| 20.0-34.0 ft | unknown | GRAVEL SAND SOME SILT WATER |
| 34.0-36.0 ft | unknown | BOULDER |
| 36.0-45.0 ft | unknown | CLAY- SAND- GRAVEL (SILT0 |
| 45.0-65.0 ft | unknown | GRAVEL- SAND; WATER |
| 65.0-85.0 ft | unknown | SAND- GRAVEL- CLAY SCREENABLE WATER |
| 85.0-105.0 ft | unknown | SAND- SILT- CLAY (BAD) |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-120777 Site Number 120777 Site Type WELL Lat/Long (NAD83) 46.338, -111.5012 Well Depth 105 Feet Elevation (NAVD88) 3816.841 ft Latitude 46.33801336 Longitude -111.5012372 Local Aquifer Name 120SDMS, SEDIMENTS (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 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 14.84 11.26 7.55 1995-08-25 2026-03-02 9697 30.6 14.43 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 13.95 13.59 12.98 11.83 10.34 10.08 9.99 30 30 Feb 14.18 13.83 13.03 11.99 10.96 10.64 10.21 26 26 Mar 14.43 14.23 13.44 12.51 11.71 11.15 10.58 28 28 Apr 14.59 14.31 13.78 12.75 12.02 11.68 11.01 29 29 May 14.74 14.00 13.54 12.88 12.21 11.67 9.12 27 27 Jun 13.36 12.75 12.24 11.75 10.68 10.45 7.57 27 27 Jul 11.51 11.28 11.03 10.0 9.55 8.87 8.33 28 28 Aug 11.44 11.15 10.51 9.78 9.20 8.72 8.62 31 31 Sep 11.39 11.11 10.26 9.43 8.93 8.45 8.40 29 29 Oct 12.28 11.93 10.85 10.13 8.98 8.62 8.29 30 30 Nov 13.43 12.84 11.59 11.14 9.45 9.01 8.49 28 28 Dec 14.29 13.40 12.63 11.76 10.03 9.61 9.16 28 28 Statistics Calculated 2026-05-16 -
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