MBMG-257677
Montana Bureau of Mines and Geology
Located in Gallatin County, Montana, this groundwater monitoring location is associated with a water well in the Alluvial aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| -2.5-45.0 ft | 6.0 in diameter steel casing | |
| 35.0-45.0 ft | 6.0 in diameter perforated casing screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-8.0 ft | unknown | TOPSOIL |
| 8.0-40.0 ft | unknown | DIRTY SAND & GRAVEL |
| 40.0-46.0 ft | unknown | BOULDERS |
| 46.0-49.0 ft | unknown | SHALE |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-257677 Site Number 257677 Site Type WELL Lat/Long (NAD83) 45.2699, -111.2979 Well Depth 49 Feet Elevation (NAVD88) 6211.639 ft Latitude 45.26992737 Longitude -111.2979127 Local Aquifer Name 110SNGR, SAND AND GRAVEL (QUATERNARY) (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 16.29 9.23 4.19 2008-05-08 2026-05-17 6061 18.0 10.71 0.0 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 Jan 12.60 11.80 10.94 10.15 9.79 9.31 9.03 18 18 Feb 13.41 12.18 11.64 10.83 10.0 9.43 9.39 18 18 Mar 14.17 12.77 12.36 11.23 10.30 9.69 9.47 17 17 Apr 11.95 11.84 10.44 9.41 7.87 7.16 7.10 17 17 May 10.73 9.56 7.82 6.98 6.33 5.65 4.78 18 18 Jun 9.76 9.26 8.30 7.33 6.43 5.11 4.45 18 18 Jul 12.39 12.38 10.4 8.36 7.65 5.12 5.04 17 17 Aug 15.02 13.35 11.12 9.64 8.73 7.08 6.55 18 18 Sep 13.43 12.34 10.61 9.01 8.47 7.74 6.77 18 18 Oct 10.85 9.78 9.43 8.24 8.01 7.43 6.63 18 18 Nov 11.11 10.43 9.31 8.73 8.31 8.21 8.13 17 17 Dec 11.60 10.95 9.79 9.18 8.81 8.54 8.34 18 18 Statistics Calculated 2026-05-18 -
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