MBMG-127172
Montana Bureau of Mines and Geology
Located in Sanders 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 | |
|---|---|---|
| -1.5-282.0 ft | 6.0 in diameter steel casing | |
| 281.0-281.0 ft | 6.0 in diameter open bottom screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-33.0 ft | unknown | YELLOW CLAY- SAND |
| 38.0-220.0 ft | unknown | YELLOW CLAY- HARDPAN BOULDERS |
| 220.0-282.0 ft | unknown | BROWN SAND- GRAVEL YELLOW CLAY AND WATER |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-127172 Site Number 127172 Site Type WELL Lat/Long (NAD83) 47.8887, -115.639 Well Depth 282 Feet Elevation (NGVD29) 2520.0 ft Latitude 47.88873366 Longitude -115.6390056 Local Aquifer Name 112SNGR, SAND AND GRAVEL (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 227.25 223.60 219.60 1995-11-14 2026-03-03 106 30.3 224.81 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 Feb 225.19 225.14 224.24 223.52 223.19 222.83 222.79 10 10 Mar 224.81 224.80 224.74 224.52 223.15 219.91 219.60 11 11 May 224.20 224.17 223.95 223.52 222.29 221.61 221.55 11 11 Jul 223.96 223.95 223.70 223.38 223.12 222.91 222.90 10 10 Aug 224.28 224.16 223.46 223.15 223.03 220.76 219.85 12 12 Oct 225.51 225.45 224.83 224.31 223.82 223.26 223.22 10 10 Statistics Calculated 2026-05-16 -
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