MBMG-122839
Montana Bureau of Mines and Geology
Located in Chouteau County, Montana, this groundwater monitoring location is associated with a water well in the Alluvial aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| -1.5-35.0 ft | 6.0 in diameter steel casing | |
| 30.0-50.0 ft | 4.5 in diameter pvc-sched40 casing | |
| 35.0-41.0 ft | 4.0 in diameter saw slots screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-1.0 ft | unknown | TOP |
| 1.0-14.0 ft | unknown | SANDY CLAY |
| 14.0-35.0 ft | unknown | SILTY CLAY |
| 35.0-41.0 ft | unknown | SAND GRAVEL AND WATER |
| 41.0-50.0 ft | unknown | GRAY SHALE |
-
Agency Montana Bureau of Mines and Geology Site Name MBMG-122839 Site Number 122839 Site Type WELL Lat/Long (NAD83) 47.8232, -110.6694 Well Depth 50 Feet Elevation (NAVD88) 2639.75 ft Latitude 47.82323268 Longitude -110.6694379 Local Aquifer Name 110ALVM, ALLUVIUM (QUATERNARY) (None) National Aquifer Name Alluvial aquifers (N100ALLUVL) 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 -
-
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 22.95 20.97 16.96 1996-03-22 2026-05-05 97 30.2 21.55 18.18 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 21.68 21.67 21.44 20.49 20.01 19.30 19.04 12 12 May 22.95 22.81 21.44 20.90 20.54 20.14 20.13 10 10 Jul 21.92 21.87 21.35 20.01 18.86 17.15 16.96 10 10 Oct 22.46 22.41 21.67 21.35 20.86 20.63 20.62 10 10 Nov 21.75 21.73 21.58 21.19 21.00 20.34 20.24 11 11 Statistics Calculated 2026-05-16 -
Operated in cooperation with:
