MBMG-148500
Montana Bureau of Mines and Geology
Located in Prairie County, Montana, this groundwater monitoring location is associated with a water well in the Alluvial aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-39.0 ft | 4.0 in diameter pvc casing | |
| 34.0-39.0 ft | 4.0 in diameter screen screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-15.0 ft | unknown | SILT AND CLAY; SOME SAND BROWN |
| 15.0-31.0 ft | unknown | SAND MEDIUM TO FINE BROWN; SOME COARSE SAND AND CLINKER GRAVEL |
| 31.0-40.0 ft | unknown | SAND AND GRAVEL GRAY-BROWN; SOME CLINKER AND SANDSTONE PEBBLES |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-148500 Site Number 148500 Site Type WELL Lat/Long (NAD83) 46.7786, -105.3031 Well Depth 39 Feet Elevation (NGVD29) 2270.0 ft Latitude 46.77860688 Longitude -105.3031415 Local Aquifer Name 110ALVM, ALLUVIUM (QUATERNARY) (None) National Aquifer Name Alluvial aquifers (N100ALLUVL) 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 34.25 33.08 31.25 1995-05-20 2026-03-10 5693 30.8 32.28 90.48 Statistics Calculated 2026-04-17 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 33.90 33.75 33.49 33.04 32.89 32.16 31.68 16 16 Feb 33.89 33.70 33.42 32.97 32.61 32.30 31.65 25 25 Mar 33.83 33.68 33.31 33.09 32.90 32.32 32.17 20 20 Apr 33.76 33.73 33.28 33.09 32.97 32.51 32.14 16 16 May 33.83 33.46 33.22 32.96 32.57 32.17 31.46 28 28 Jun 33.76 33.59 33.30 33.01 32.75 32.17 31.51 19 19 Jul 33.73 33.54 33.33 33.19 32.68 31.97 31.85 17 17 Aug 33.92 33.72 33.44 33.21 32.62 32.10 31.61 24 24 Sep 33.82 33.78 33.38 32.97 32.55 31.95 31.63 19 19 Oct 34.10 33.95 33.65 33.11 32.84 32.29 31.89 18 18 Nov 34.23 33.81 33.59 33.13 32.71 32.52 31.91 29 29 Dec 34.08 33.85 33.56 33.12 32.84 32.29 31.81 16 16 Statistics Calculated 2026-04-17 -
Operated in cooperation with:
