MBMG-2394
Montana Bureau of Mines and Geology
Located in Cascade County, Montana, this groundwater monitoring location is associated with a water well in the Paleozoic aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-187.0 ft | 6.0 in diameter casing casing | |
| 0.0-518.0 ft | 4.0 in diameter casing casing | |
| 518.0-605.0 ft | 6.0 in diameter open hole screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-25.0 ft | unknown | BROWN SILT |
| 25.0-152.0 ft | unknown | GRAY SANDY SILT |
| 152.0-158.0 ft | unknown | SAND CLAY AND SEEP |
| 158.0-182.0 ft | unknown | SOFT GRAY SHALE |
| 182.0-225.0 ft | unknown | VARIEGATED SHALE |
| 225.0-270.0 ft | unknown | GRAY SHALEROCK |
| 270.0-281.0 ft | unknown | GRAY SANDY LIMESTONE |
| 281.0-299.0 ft | unknown | VARIEGATED SHALE WITH LIME STREAMER |
| 299.0-312.0 ft | unknown | GRAY AND BROWN SANDSTONE |
| 312.0-320.0 ft | unknown | BLACK SHALE |
| 320.0-344.0 ft | unknown | GRAY SHALEROCK |
| 344.0-349.0 ft | unknown | YELLOW SHALE |
| 349.0-352.0 ft | unknown | PINK SHALE |
| 352.0-363.0 ft | unknown | WHITE SANDSTONE SUNBURST |
| 363.0-375.0 ft | unknown | YELLOW SHALE |
| 375.0-387.0 ft | unknown | HARD RED SHALE |
| 387.0-401.0 ft | unknown | GRAY SANDSTONE |
| 401.0-415.0 ft | unknown | GRAY SHALE |
| 415.0-420.0 ft | unknown | GRAY SANDSTONE |
| 420.0-436.0 ft | unknown | GREENISH GRAY SHALE |
| 436.0-439.0 ft | unknown | HARD GRAY SANDSTONE |
| 439.0-444.0 ft | unknown | GRAY SHALE |
| 444.0-448.0 ft | unknown | GRAY AND BROWN SANDSTONE HARD |
| 448.0-452.0 ft | unknown | SOFT GRAY SHALE |
| 452.0-458.0 ft | unknown | HARD GRAY SANDROCK |
| 458.0-471.0 ft | unknown | GRAY SHALE |
| 471.0-503.0 ft | unknown | GRAY SHALEROCK |
| 503.0-514.0 ft | unknown | BROWN SANDSTONE SWIFT WATER |
| 514.0-525.0 ft | unknown | GRAY LIMESTONE |
| 525.0-540.0 ft | unknown | BROWN LIMESTONE WATER |
| 540.0-570.0 ft | unknown | GRAY LIMESTONE |
| 570.0-575.0 ft | unknown | WHITE LIMESTONE WATER |
| 575.0-588.0 ft | unknown | HARD BROWN LIMESTONE |
| 588.0-605.0 ft | unknown | BROWN LIMESTONE WATER 590 TO 596FT |
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Agency Montana Bureau of Mines and Geology Site Name MBMG-2394 Site Number 2394 Site Type WELL Lat/Long (NAD83) 47.5241, -111.413 Well Depth 605 Feet Elevation (NGVD29) 3330.0 ft Latitude 47.524058 Longitude -111.413006 Local Aquifer Name 330MDSN, MADISON GROUP OR LIMESTONE (None) National Aquifer Name Paleozoic aquifers (N500PLOZOC) Aquifer Type CONFINED Water-Level Well Type Surveillance 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 1979-09-13 11:30:00 MST Bicarbonate 146. mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Carbonate 0.0 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Chloride 120. mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Fluoride 2.5 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Nitrate as Nitrogen .57 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Sulfate 790. mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Calcium 67.3 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Iron .11 ug/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Magnesium 96.0 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Manganese .05 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Potassium 34.6 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Silica 1.5 mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST Sodium 240. mg/L Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1979-09-13 11:30:00 MST pH 7.73 None Actual EPA MBMG GRAB MBMG GRAB Sample MBMG 1996-06-03 15:10:00 MST Bicarbonate 366.8 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Carbonate 0.0 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Chloride 113. mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Fluoride <1. mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Nitrate as Nitrogen <.25 P mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Sulfate 627. mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Calcium 167.4 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Iron .578 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Magnesium 85.5 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Manganese .011 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Potassium 12.7 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Silica 5.8 mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Sodium 147. mg/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST pH 7.50 None Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Aluminum <30. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Antimony <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Arsenic 2.8 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Barium 7.9 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Beryllium <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Boron 538. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Bromide 568. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Cadmium <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Chromium 29.9 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Cobalt <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Copper <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Lead <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Lithium 299. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Molybdenum <20. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Nickel 33.9 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Selenium 46.6 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Silver <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Strontium 3288. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Titanium <10. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Vanadium 7.5 ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Zinc <2. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 1996-06-03 15:10:00 MST Zirconium <20. ug/L Actual DISSOLVED EPA MBMG PUMPED MBMG PUMPED Sample MBMG 2006-07-12 16:30:00 MST Bicarbonate 331.4 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Carbonate 0.0 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Chloride 106 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Fluoride 2.94 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Nitrate as Nitrogen <1.0 P mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Orthophosphate <1.0 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Sulfate 599 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Calcium 159 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Iron 0.599 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Magnesium 82.9 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Manganese 0.011 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Potassium 13.6 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Silica 12.4 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Sodium 132 mg/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST pH 7.06 None Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Uranium <3 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Aluminum <30 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Antimony <10 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Arsenic <5 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Barium 9.72 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Beryllium <2 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Boron 545 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Bromide <1000 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Cadmium <1 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Chromium <10 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Cobalt <2 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Copper <5 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Lead <10 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Lithium 340 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Molybdenum <10 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Nickel <2 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Selenium <15 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Silver <5 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Strontium 3649 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Thallium <25 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Titanium <1 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Vanadium <10 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Zinc 5.80 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB Sample MBMG 2006-07-12 16:30:00 MST Zirconium <2 ug/L Actual DISSOLVED EPA MBMG GRAB MBMG GRAB 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 44.13 22.97 1.48 1979-01-28 2026-01-14 144 47.0 23.11 45.83 Statistics Calculated 2026-04-17 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 42.77 42.26 37.55 22.08 13.21 11.19 8.30 23 23 Apr 44.09 43.73 38.56 22.64 16.15 13.30 12.47 19 19 Jul 43.01 41.84 34.75 21.51 13.32 9.87 6.53 27 27 Sep 43.07 42.35 35.42 23.23 20.27 8.84 7.38 11 11 Oct 42.62 42.06 32.59 20.34 12.64 6.69 1.48 25 25 Statistics Calculated 2026-04-17 -
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