MBMG-140484
Montana Bureau of Mines and Geology
Located in Hill County, Montana, this groundwater monitoring location is associated with a water well in the Sand and gravel aquifers (glaciated regions).
Well Construction
| Depth | Description | |
|---|---|---|
| 1.0-152.7 ft | 2.0 in diameter unreported casing |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-5.0 ft | unknown | SOIL- STICKY |
| 5.0-29.0 ft | unknown | CLAY- BROWN; CONTAINS PEBBLES |
| 29.0-39.0 ft | unknown | CLAY- YELLOW; CONTAINS PEBBLES |
| 39.0-58.0 ft | unknown | CLAY- SANDY- YELLOW; CONTAINS PEBBLES |
| 58.0-97.0 ft | unknown | CLAY- SANDY- BLUE-GRAY CONTAINS PEBBLES AND FRAGMENTS OF COAL |
| 97.0-104.0 ft | unknown | GRAVEL |
| 104.0-125.0 ft | unknown | CLAY- SILTY- VERY SOFT |
| 125.0-134.0 ft | unknown | CLAY- SANDY- BLUE-GRAY; CONTAINS GRAVEL |
| 134.0-142.0 ft | unknown | CLAY- SILTY AND SANDY- BLUE-GRAY |
| 142.0-146.0 ft | unknown | GRAVEL AND BLUE-GRAY CLAY |
| 146.0-155.0 ft | unknown | GRAVEL- COARSE |
| 155.0-158.0 ft | unknown | SANDSTONE- VERY HARD |
| 158.0-180.0 ft | unknown | SHALE |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-140484 Site Number 140484 Site Type WELL Lat/Long (NAD83) 48.5251, -109.8009 Well Depth 180 Feet Elevation (NGVD29) 2580.0 ft Latitude 48.52508 Longitude -109.80088 Local Aquifer Name 110ALVM, ALLUVIUM (QUATERNARY) (None) National Aquifer Name Sand and gravel aquifers (glaciated regions) (N100GLCIAL) 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 52.56 40.06 28.08 1947-05-27 2026-04-07 486 78.9 30.06 89.19 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 46.80 41.81 40.74 39.38 32.75 30.01 29.15 38 38 Feb 46.52 43.73 41.54 40.45 39.64 37.40 29.42 27 27 Mar 46.09 43.33 41.33 40.27 38.65 33.07 30.38 39 39 Apr 45.72 43.65 41.24 40.13 31.54 30.02 28.81 36 36 May 44.30 42.26 41.23 40.02 38.18 31.16 29.28 38 38 Jun 52.56 42.75 41.12 39.96 35.39 29.63 28.86 43 43 Jul 45.39 42.20 40.99 39.65 32.91 29.88 29.48 40 40 Aug 44.57 42.84 41.48 40.41 38.17 30.55 29.47 40 40 Sep 47.40 42.53 40.93 39.44 33.59 30.68 29.61 34 34 Oct 47.24 41.84 40.81 39.77 33.88 30.29 29.81 44 44 Nov 45.21 43.95 41.78 40.75 39.18 32.44 29.56 27 27 Dec 44.46 42.03 41.04 39.97 34.58 30.79 30.30 27 27 Statistics Calculated 2026-05-16 -
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