MBMG-36883
Montana Bureau of Mines and Geology
Located in Chouteau County, Montana, this groundwater monitoring location is associated with a water well in the Upper Cretaceous aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-196.0 ft | 5.0 in diameter casing casing | |
| 182.0-192.0 ft | 5.0 in diameter slotted perforated screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-2.0 ft | unknown | LOAM |
| 2.0-30.0 ft | unknown | GUMBO |
| 30.0-38.0 ft | unknown | DARK SANDY SHALE |
| 38.0-45.0 ft | unknown | SAND ROCK |
| 45.0-70.0 ft | unknown | SANDY YELLOW SHALE |
| 70.0-139.0 ft | unknown | SANDY GRAY SHALE |
| 139.0-140.0 ft | unknown | SAND ROCK |
| 140.0-180.0 ft | unknown | DARK SHALE |
| 180.0-194.0 ft | unknown | SAND ROCK WATER |
| 194.0-196.0 ft | unknown | GREY SHALE |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-36883 Site Number 36883 Site Type WELL Lat/Long (NAD83) 47.8547, -110.3871 Well Depth 196 Feet Elevation (NAVD88) 101.4 ft Latitude 47.85468425 Longitude -110.3870956 Local Aquifer Name 211EGLE EAGLE SANDSTONE (None) National Aquifer Name Upper Cretaceous aquifers (N300UPCTCS) 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 76.83 68.11 64.27 1996-03-20 2026-05-06 76 30.2 66.90 Statistics Calculated 2026-05-18 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 -
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