Water levels and water-level changes in the Prairie du Chien-Jordan and Mount Simon-Hinckley aquifers, Twin Cities metropolitan area, Minnesota, 1971-80

Schoenberg, Michael

Abstract:

The Mississippi, Minnesota, and St. Croix Rivers greatly influence flow patterns in the Prairie du Chien-Jordan aquifer. Water generally flows toward these streams from surrounding water-level highs. Heavy pumping has caused only localized cones of depression. In contrast, pumping in Minneapolis and St. Paul has greatly influenced ground-water flow in the Mount Simon-Hinckley aquifer, resulting in a large cone of depression. Between 1971 and 1980 average water levels in the Prairie du Chien-Jordan aquifer changed less than 5 feet in most of the study area, while average water levels in the Mount Simon-Hinckley aquifer rose as much as 60 feet in the center of the cone of depression. Water-level data suggest that (1) little variation of annual pumpage between 1971 and 1980 from the Prairie du Chien-Jordan aquifer produced generally stable water levels in that aquifer, (2) decreased annual pumpage from 1971 to 1980 from the Mount Simon-Hinckley aquifer caused rising water levels in that aquifer, and (3) a greater seasonal component of pumpage for the Mount Simon-Hinckley aquifer than for the Prairie du Chien-Jordan produced larger and more widespread seasonal water-level declines in the Mount Simon-Hinckley than in the Prairie du Chien-Jordan, particularly during dry years. (USGS)

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USGS Numbered Series

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29589

Citation Author:

Schoenberg, Michael

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ENGLISH

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iv, 23 p. :ill., maps ;28 cm.

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U.S. Geological Survey,

Citation Series:

Water-Resources Investigations Report

Citation Series Code:

WRI

Citation Series Number:

83-4237

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Water levels and water-level changes in the Prairie du Chien-Jordan and Mount Simon-Hinckley aquifers, Twin Cities metropolitan area, Minnesota, 1971-80; 1984; WRI; 83-4237; Schoenberg, Michael

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1984

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citation/reference

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Water levels and water-level changes in the Prairie du Chien-Jordan and Mount Simon-Hinckley aquifers, Twin Cities metropolitan area, Minnesota, 1971-80; 1984; WRI; 83-4237; Schoenberg, Michael