MBMG-219913
Montana Bureau of Mines and Geology
Located in Powell 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 | |
|---|---|---|
| -3.0-37.0 ft | 6.0 in diameter a53a steel casing | |
| 14.0-18.0 ft | 6.0 in diameter holte perforator slots screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-2.0 ft | unknown | DARK BROWN CLAYEY SOIL TURNING TO GRAVELLY LOAM |
| 2.0-5.0 ft | unknown | LIGHT BROWN SAND AND GRAVEL, DRY CALCIUM CARBONATE ON GRAVEL |
| 5.0-15.0 ft | unknown | LIGHT BROWN COARSE AND VERY COARSE GRAINED SAND, PEBBLES, AND BROKEN COBBLES; MOSTLY GRANITE AND QUARTZITE CLASTS |
| 15.0-18.0 ft | unknown | BROWN VERY COARSE GRAINED SAND AND COBBLES; MOIST CUTTINGS |
| 18.0-32.0 ft | unknown | BROWN CLAY; SMOOTH FAST DRILLING |
| 32.0-37.0 ft | unknown | BROWN SILTY CLAY AND CLAYEY SAND WITH SOME COARSE SAND AND GRANULES; ROUNDED GRAINS OF GRANITE QUARTZ; NO WATER PRODUCED WHILE BLEW AIR ON BOTTOM |
-
Agency Montana Bureau of Mines and Geology Site Name MBMG-219913 Site Number 219913 Site Type WELL Lat/Long (NAD83) 46.4441, -112.7263 Well Depth 37 Feet Elevation (NAVD88) 4464.86 ft Latitude 46.44412862 Longitude -112.7262862 Local Aquifer Name 111ALVM, ALLUVIUM (HOLOCENE) (None) National Aquifer Name Northern Rocky Mountains Intermontane Basins aquifer systems (S100NRMTIB) 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 -
-
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 7.13 6.23 2.52 2005-06-02 2026-01-12 6308 20.6 6.94 10.5 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 6.98 6.93 6.80 6.63 6.26 6.01 5.95 18 18 Feb 7.00 6.89 6.82 6.61 6.42 6.06 5.92 18 18 Mar 6.96 6.89 6.68 6.55 6.35 5.95 5.32 17 17 Apr 6.80 6.79 6.69 6.31 6.12 5.39 4.81 19 19 May 6.92 6.79 6.74 6.42 6.24 5.17 5.15 17 17 Jun 6.73 5.45 5.24 5.13 4.62 4.50 4.15 20 20 Jul 6.73 5.91 5.58 5.45 5.14 4.83 4.73 18 18 Aug 6.73 6.64 6.21 5.96 5.73 5.42 5.29 18 18 Sep 6.81 6.71 6.43 6.14 5.71 5.43 4.96 20 20 Oct 6.72 6.45 6.30 5.91 5.44 5.19 4.62 19 19 Nov 6.80 6.53 6.32 6.04 5.84 5.45 5.31 21 21 Dec 6.85 6.83 6.65 6.37 6.06 5.83 5.80 20 20 Statistics Calculated 2026-04-17 -
Operated in cooperation with:
