MBMG-153329
Montana Bureau of Mines and Geology
Located in Flathead 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 | |
|---|---|---|
| -2.0-341.0 ft | 6.0 in diameter steel casing | |
| -0.3-61.0 ft | 8.0 in diameter steel casing | |
| 308.0-338.0 ft | 6.0 in diameter mills knife screen | |
| 341.0-361.0 ft | 6.0 in diameter open hole screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-12.0 ft | unknown | SOFT GRAY ROCK WITH ORANGE-BROWN SEAMS |
| 12.0-52.0 ft | unknown | SOFT & BROKEN LIGHT & DARK GRAY ROCK WITH LIGHT GRAY CLAY SEAMS |
| 52.0-68.0 ft | unknown | HARDER GRAY & GREEN ROCK IN ALTERNATING LAYERS |
| 68.0-74.0 ft | unknown | SOFT BROWN ROCK WITH TAN & WHITE CLAY SEAMS |
| 74.0-86.0 ft | unknown | SOFT TAN ROCK WITH ORANGE CLAY SEAMS |
| 86.0-89.0 ft | unknown | SOFT TAN ROCK WITH ORANGE CLAY SEAMS |
| 89.0-139.0 ft | unknown | SOFT & BROKEN GRAY & GREEN ROCK WITH BROWN & TAN CLAY SEAMS |
| 139.0-154.0 ft | unknown | LIGHT GRAY ROCK WITH ORANGE-BROWN SEAMS |
| 154.0-164.0 ft | unknown | DARK GRAY ROCK WITH GREEN & BROWN SEAMS-25 GPM |
| 164.0-183.0 ft | unknown | SOFT LIGHT & DARK GRAY ROCK WITH GREEN & SEAMS- SOME CALCITE |
| 183.0-211.0 ft | unknown | LIGHT & DARK GRAY FRACUTRED ROCK WITH GRAY CLAY SEAMS |
| 211.0-283.0 ft | unknown | SOFT & BROKEN GRAY & GREEN ROCK WITH LIGHT GRAY & GREEN CLAY SEAMS-SOME CALCITE-40 GPM WATER |
| 283.0-324.0 ft | unknown | BROKEN LIGHT & DARK GRAY ROCK WITH GREEN & BROWN SEAMS & LIGHT GRAY CLAY |
| 324.0-328.0 ft | unknown | BADLY BROKEN & CAVING LIGHT & DARK GRAY ROCK WITH GREEN & BROWN SEAMS & LIGHT GRAY CLAY-UNABLE TO DRILL BEYOND 238' WITH OPEN HOLE-RAN SIX INCH LINER |
| 328.0-341.0 ft | unknown | BROKEN DARK GRAY ROCK WITH SOME GRAY CLAY SEAMS- WATER 100+ GPM TOTAL |
| 341.0-361.0 ft | unknown | LIGHT TO DARK GRAY FRACTURED ROCK WITH PYRITE & CALCITE IN SEAMS-115 GPM TOTAL |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-153329 Site Number 153329 Site Type WELL Lat/Long (NAD83) 48.4592, -114.3556 Well Depth 361 Feet Elevation (NAVD88) 3630.0 ft Latitude 48.4592 Longitude -114.3556 Local Aquifer Name 400BELT (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 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 115.31 102.62 93.18 1996-04-15 2026-04-08 6710 30.0 96.53 75.00 Statistics Calculated 2026-05-20 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 111.73 108.87 105.61 102.55 101.86 100.9 96.82 27 27 Feb 108.78 107.46 105.39 102.17 101.22 99.32 97.70 27 27 Mar 108.09 104.96 102.88 101.44 99.89 96.91 95.59 27 27 Apr 104.76 102.13 100.58 98.53 96.53 95.25 93.53 31 31 May 104.34 101.98 100.70 99.66 98.17 97.57 95.88 30 30 Jun 103.52 103.29 101.44 99.9 99.04 96.24 95.73 30 30 Jul 106.18 104.82 103.57 101.59 100.44 98.91 98.24 30 30 Aug 107.60 107.09 105.70 103.89 102.46 101.48 100.75 30 30 Sep 109.18 108.33 107.00 104.85 103.88 103.07 102.37 29 29 Oct 111.29 109.12 108.14 105.30 103.94 103.23 102.79 29 29 Nov 114.77 109.59 108.02 104.23 103.07 102.66 101.99 29 29 Dec 115.12 109.46 107.11 102.96 102.46 102.26 101.75 29 29 Statistics Calculated 2026-05-20 -
Operated in cooperation with:
