Ground-water Data for Michigan - 1987
Subject
GroundwaterAbstract
Water levels, locations, depths, and aquifers tapped are given for
112 observation wells. Tabulated data include extremes of water levels
for calendar year 1987 and for the period of record, pumpage of most major
ground-water users in the State, and water-quality data from selected
wells. The largest municipal user of ground water, the city of Lansing,
pumped 7.8 billion gallons from the Saginaw Formation and glacial deposits
in 1987.
Description
This report provides records of water levels and related data
collected during 1987 for the principal aquifers of Michigan. Data on
yield of wells, pumpage, quality of water, and hydrographs of ground-water
levels for the past 5 years are shown in the text. Yearly hydrographs are
included to illustrate seasonal changes in water levels. Records of water
levels in observation wells, records of pumpage by most major ground-water
users, and water-quality data from selected wells sampled during 1987 are
given in tables 2, 3, and 4. Distribution of observation wells is shown
in figure 1. Location of wells sampled for water-quality data and years
sampled are shown in figure 2.