MBMG-130177
Montana Bureau of Mines and Geology
Located in Madison 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 | |
|---|---|---|
| -2.75-200.0 ft | 1.25 in diameter steel casing |
No lithology data is available
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Agency Montana Bureau of Mines and Geology Site Name MBMG-130177 Site Number 130177 Site Type WELL Lat/Long (NAD83) 45.4198, -112.3396 Well Depth 200 Feet Elevation (NAVD88) 5042.684 ft Latitude 45.41982452 Longitude -112.3396341 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 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 -
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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 175.35 136.37 101.06 1965-06-26 2026-03-30 216 60.8 136.65 40.541 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 172.30 172.14 167.73 140.72 124.29 114.85 114.85 10 10 Mar 173.70 160.68 143.72 134.63 130.78 117.92 112.13 36 36 Apr 173.61 173.44 169.40 142.59 131.51 115.36 113.70 10 10 Jun 175.35 171.18 150.53 137.00 133.73 124.67 120.04 33 33 Aug 173.21 170.39 159.97 148.77 110.45 107.66 104.80 17 17 Sep 154.53 146.04 138.59 135.31 129.80 119.35 101.06 32 32 Oct 168.31 167.10 161.99 141.92 109.01 105.39 104.50 11 11 Dec 169.08 160.55 141.27 132.87 128.01 117.01 112.59 34 34 Statistics Calculated 2026-05-16 -
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