Ground-water data for Michigan 1987

Abstract

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. SUPERIOR 46 78 EXPLANATION WELL AT WHICH WATER-QUALITY DATA WAS COLLECTED-Number indicates last two digits of year data was collected 20 40 60 80 MILES 0 20 40 60 80 100 KILOMETERS Base from U.S. Geological Survey 1:500,000 map LAKE ERIE Figure 2. Water-quality sampling sites and year sample collected. (Water-quality data are given in the Michigan annual ground-water report for year in which sample was collected Data for the years 1975-76 are in the annual report for 1977.) Ground-Water Records and Reports Tabulations of water-level measurements, hydrographs of observation wells, chemical analyses, water-temperature measurements, well records and logs, aquifer tests, records of pumping for public and industrial supplies, and water resources reports are on file for public inspection.

Natural ground-water quality in Michigan, 1974-87

“…Thus, most conclusions are based on analyses of 201 samples. Complete chemical analyses of water from each well and exact well locations have been published in annual reports by Huffman (1979aHuffman ( ,b, 1980Huffman ( , 1981Huffman ( , 1982Huffman ( , 1983Huffman ( , 1984Huffman ( , 1985Huffman ( , 1986Huffman ( , 1988 and by Huffman and Whited (1988). These reports, available from the U.S. Geological Survey in Lansing, may be inspected for more complete and specific information.…”

Model Refinement and Simulation of Groundwater Flow in Clinton, Eaton, and Ingham Counties, Michigan

“…For communities within the study area, data on withdrawals from 1970 to 1990 were primarily based on records furnished by municipal suppliers, published in annual data reports of the USGS Thompson, 1971, 1973;Huffman, 1974aHuffman, , 1974bHuffman, , 1975Huffman, , 1976Huffman, , 1977Huffman, , 1979aHuffman, , 1979b1980;1981;1982;1983;1984;1986;1988;Huffman and Whited, 1988;1991;1993), or included in previous studies of the area. Additional data are available in a report by Baltusis and others (1992), who summarized sources and annual withdrawals of groundwater for communities in the Lower Peninsula of Michigan.…”

“…Direct runoff is associated with the component of precipitation that exceeds the infiltration capacity of the soil and flows overland directly into streams. Base flow is associated with the component of 1910 1915 1920 1925 1930 1935 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 and Thompson, 1971and Thompson, , 1973Huffman, 1974aHuffman, , 1974bHuffman, , 1975Huffman, , 1976Huffman, , 1977Huffman, , 1979aHuffman, , 1979bHuffman, , 19801981, 1982, 1983, 1984, 1986, 1988Huffman and Whited, 1988, 1991, 1993and Baltusis and others, 1992.) 6 1975-80, 1989-90, 1994- precipitation that infiltrates the soil and percolates below the plant-rooting depth, where it can enter (recharge) the groundwater system.…”

Simulation of the ground-water-flow system in the Kalamazoo County area, Michigan

“…For 2001, data were averaged using available data from 1997 to 2001. For other communities within the study area, withdrawals were estimated using data supplied by municipal suppliers and included in annual ground-water data reports prepared by the USGS from 1970 to 1990 Thompson, 1971, 1973;Huffman, 1974a-88;Huffman and Whited, 1988;1989;1991;1993) or previous studies of this area others, 1972 andRheaume, 1990).…”