MBMG-6024

Montana Bureau of Mines and Geology

Located in Lake County, Montana, this groundwater monitoring location is associated with a water well in the Northern Rocky Mountains Intermontane Basins aquifer systems.

Well Construction

Depth Description
0.0-147.0 ft 6.0 in diameter steel casing
142.0-147.0 ft 6.0 in diameter screened gravel pack natural screen
Depth Lithology Description
0.0-4.0 ft unknown SOIL
4.0-45.0 ft unknown GRAVEL-COBBLES & BOULDERS COMPOSED OF RED-GREEN- GRAY & TAN ARGILLITE AND QUARTZITE;VERY SILTY;DRY
45.0-75.0 ft unknown GRAVEL FINE-MED COMP OF RED ARGILLITE AND QUARTZIT SOME SILT; DRY
75.0-120.0 ft unknown GRAVEL FINE-MED COMP. OF RED- GREEN- TAN & BLACK ARGILLITE & QUARTZITE;SOME SILT;LIGHT CEMENTED DRY
120.0-131.0 ft unknown GRAVEL-FINE-COMP OF RED- GREEN-TAN BLACK ARGILLITE QUARTZITE; SOME SILT;LIGHT CEMENTED SATURATED
131.0-156.0 ft unknown SAND-COARSE & FINE TO COARSE GRAVEL- COMP OF RED- GREEN- TAN & BLACK ARGILLITE & QUARTZITE.
156.0-157.0 ft unknown CLAYSTONE-YELLOW AND TAN SANDSTONE; SOFT
157.0-158.0 ft unknown SAND & GRAVEL- COMP OF RED- GREEN- TAN AND BLACK ARGILLITE AND QUARTZITE
158.0-180.0 ft unknown SANDSTONE FINE-GRAINED- YELLOW- SOFT- FRIABLE

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