MBMG-45679
Montana Bureau of Mines and Geology
Located in Valley County, Montana, this groundwater monitoring location is associated with a water well in the Alluvial aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-78.0 ft | 6.0 in diameter steel casing | |
| 78.0-78.0 ft | 6.0 in diameter open bottom screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-45.0 ft | unknown | SAND |
| 45.0-70.0 ft | unknown | QUICKSAND |
| 70.0-75.0 ft | unknown | CLAY AND SAND |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-45679 Site Number 45679 Site Type WELL Lat/Long (NAD83) 48.6743, -106.215 Well Depth 75 Feet Elevation (NGVD29) 2882.0 ft Latitude 48.67434 Longitude -106.21502 Local Aquifer Name 121FLXV FLAXVILLE GRAVELS (PLIOCENE-MIOCENE) (None) National Aquifer Name Alluvial aquifers (N100ALLUVL) 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 -
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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 46.33 41.81 36.95 2000-10-09 2026-04-09 4375 25.5 39.20 75.00 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 Jan 44.64 44.62 43.66 42.46 41.24 40.20 39.96 12 12 Feb 44.57 44.56 42.90 41.87 40.90 40.14 39.93 12 12 Mar 44.40 44.09 42.97 41.72 40.30 38.01 37.24 14 14 Apr 44.30 43.79 42.23 41.09 39.20 37.93 36.95 15 15 May 44.31 44.02 43.11 41.72 40.90 40.38 40.20 13 13 Jun 44.25 44.00 42.19 40.78 38.37 37.43 37.13 22 22 Jul 46.18 45.00 43.27 41.90 40.75 38.95 37.04 15 15 Aug 46.26 45.34 43.42 42.33 41.53 40.73 40.37 14 14 Sep 46.31 44.37 43.00 41.58 38.80 37.77 37.27 24 24 Oct 44.82 44.48 43.48 42.49 41.12 39.77 39.72 15 15 Nov 44.82 44.59 43.80 42.26 41.05 39.34 38.66 16 16 Dec 44.75 44.56 43.27 41.66 39.04 38.08 37.11 19 19 Statistics Calculated 2026-05-16 -
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