MBMG-206
Montana Bureau of Mines and Geology
Located in Rosebud County, Montana, this groundwater monitoring location is associated with a water well in the Lower Tertiary aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-225.0 ft | 4.0 in diameter pvc-sched 40 casing | |
| 212.0-220.0 ft | 4.0 in diameter saw slots screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-57.0 ft | unknown | SAND;VFG-SOFT-YELLOW-V SILTY;CONTAINS MANY IRON- STONE CONCRETIONS. |
| 57.0-108.0 ft | unknown | SAND;AS ABOVE-GRAY & YELLOW-DAMP-MANY ZONES OF RED IRONSTONE CONCRETIONS. |
| 108.0-122.0 ft | unknown | SAND;AS ABOVE-GRAY-V WET-W/THIN BEDS OF GRAY CLAY. |
| 122.0-147.0 ft | unknown | COAL;WEATHERED TOP 2'; HARD BELOW |
| 147.0-159.0 ft | unknown | CLAY;LT GRAY & GREEN-IN GREASYIN - POOR SAMPLES. |
| 159.0-163.0 ft | unknown | CLAY;FIRM- SILTY- GOOD SAMPLES. |
| 163.0-176.0 ft | unknown | SANDSTONE-H GRAY-VFG- WELL CONSOL.- MED HD- GOOD SAMPLES. |
| 176.0-211.0 ft | unknown | SANDSTONE;VFG- AS ABOVE W/CLAY STREAKS |
| 211.0-220.0 ft | unknown | COAL |
| 220.0-225.0 ft | unknown | CLAY; WHITE-H.GRAY-GREASY |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-206 Site Number 206 Site Type WELL Lat/Long (NAD83) 45.832, -106.708 Well Depth 225 Feet Elevation (NAVD88) 3485.9 ft Latitude 45.83202151 Longitude -106.7079668 Local Aquifer Name 125MKCB, MCKAY COAL * FORT UNION FORMATION (None) National Aquifer Name Lower Tertiary aquifers (N300LTRTRY) Aquifer Type UNCONFINED Water-Level Well Type Trend Water-Level Well Characteristics Known Changes 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 1976-11-19 00:00:00 MST Bicarbonate 571. mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Carbonate 0.0 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Chloride 18. mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Fluoride <.1 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Nitrate as Nitrogen <.1 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Sulfate 1346. mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Calcium 262. mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Iron .04 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Magnesium 208. mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Manganese .01 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Potassium 9.6 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Silica 15.0 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Sodium 180. mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST pH 7.80 None Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Aluminum <50. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Antimony <200. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Arsenic <2.0 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Beryllium <.5 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Boron 280. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Cadmium 10. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Chromium <10. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Copper 30. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Lead <10. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Lithium 60. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Mercury <.3 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Nickel 50. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Selenium <2.0 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Silver 10. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Strontium 15400. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Tin 660. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1976-11-19 00:00:00 MST Zinc 490. ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 1992-06-24 11:00:00 MST Bicarbonate 582.2 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Carbonate 0.0 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Chloride 12.8 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Fluoride .12 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Nitrate as Nitrogen 1.78 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Orthophosphate <.1 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Sulfate 1245. mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Calcium 240. mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Iron .607 ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Magnesium 204. mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Manganese .161 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Potassium 8.8 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Silica 16.2 mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Sodium 169. mg/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST pH 7.53 None Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Aluminum <100. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Boron 130. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Bromide <100. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Cadmium <10. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Chromium <10. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Copper <10. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Lithium 42. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Molybdenum <20. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Nickel <30. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Silver <10. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Strontium 14.790 ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Titanium <10. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Vanadium <10. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Zinc 191. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 1992-06-24 11:00:00 MST Zirconium <100. ug/L Actual DISSOLVED EPA MBMG BAILED MBMG BAILED Sample MBMG 2010-06-23 00:00:00 MST Bicarbonate 547.8 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Carbonate 0.0 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Chloride 2.61 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Fluoride 0.102 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Nitrate as Nitrogen 0.058 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Orthophosphate <0.05 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Sulfate 578.0 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Calcium 161 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Iron 0.741 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Magnesium 139 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Manganese 0.058 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Potassium 5.74 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Silica 16.8 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Sodium 76.5 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST pH 7.99 None Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Cerium <2.5 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Cesium <2.5 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Gallium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Lanthanum <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Neodymium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Niobium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Palladium 4.45 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Praseodymium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Rubidium 6.34 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Thorium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Tungsten <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Uranium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Aluminum <10.1 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Antimony <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Arsenic <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Barium 18.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Beryllium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Boron 184 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Bromide <50 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Cadmium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Chromium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Cobalt <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Copper <2.5 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Lead <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Lithium 25.7 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Molybdenum <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Nickel <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Selenium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Silver <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Strontium 11832 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Thallium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Tin <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Titanium 5.83 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Vanadium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Zinc <5.1 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2010-06-23 00:00:00 MST Zirconium <1.0 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG -
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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 123.42 98.53 94.51 1975-01-10 2026-05-06 318 51.3 123.17 6.0606 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 122.18 122.12 110.86 99.21 95.98 95.08 94.62 19 19 Feb 123.30 116.78 112.80 101.08 96.48 95.21 94.74 23 23 Mar 114.79 114.68 100.73 97.06 95.87 94.61 94.51 17 17 Apr 121.94 117.12 104.66 97.83 96.09 95.15 94.64 23 23 May 123.20 117.49 111.52 99.12 96.53 95.17 94.62 32 32 Jun 120.35 114.66 108.06 98.21 96.20 94.95 94.66 30 30 Jul 123.42 121.32 109.82 98.65 96.09 95.13 94.53 32 32 Aug 117.81 114.97 108.10 98.03 96.03 94.96 94.58 30 30 Sep 120.04 114.45 101.45 97.77 96.12 95.36 94.88 24 24 Oct 123.33 122.48 116.19 100.1 96.29 95.36 94.74 30 30 Nov 119.43 115.24 110.97 98.47 96.09 95.01 94.59 28 28 Dec 114.78 114.10 106.70 97.84 96.40 95.35 94.52 22 22 Statistics Calculated 2026-05-16 -
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