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Publications

Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.

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Iowa ground-water quality Iowa ground-water quality

The population served by ground-water supplies in Iowa (fig. L4) is estimated to be about 2,392,000, or 82 percent of the total population (U.S. Geological Survey, 1985, p. 211). The population of Iowa is distributed fairly uniformly throughout the State (fig. IB), with 59 percent residing in rural areas or towns of less than 10,000 (U.S. Bureau of the Census, 1982). Surficial aquifers...
Authors
R.C. Buchmiller, P. J. Squillace, R.D. Drustrup

Floods in Iowa: Stage and discharge Floods in Iowa: Stage and discharge

This report presents stations descriptions and tables of peak stages and discharges for 280 continuous- and partial-record gaging stations in Iowa. Data for the annual flood series for each gaging station and partial-duration series, at stations where available, are contained in the report.
Authors
O. G. Lara, D. A. Eash

Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California

Samples of bluegills (Lepomis macrochirus) and common carp (Cyprinus carpio) collected from the San Joaquin River and two tributaries (Merced River and Salt Slough) in California were analyzed for 21 organochlorine chemical residues by gas chromatography to determine if pesticide contamination was confined to downstream sites exposed to irrigated agriculture, or if nonirrigated upstream...
Authors
Michael K. Saiki, Christopher J. Schmitt

Larval settlement into marine soft-sediment systems: Interactions with the meiofauna Larval settlement into marine soft-sediment systems: Interactions with the meiofauna

The distribution and abundance of organisms exhibiting complex life cycles, like marine invertebrates, reflect ecological processes operating at all stages in the life history. Few studies have yet considered the mortality patterns of larvae and juveniles. To test whether the permanent meiofauna play a role in macrofaunal larval site-selection, and/or if permanent meiofaunal predators or
Authors
Mary C. Watzin

Floods in the Floyd River basin, Iowa Floods in the Floyd River basin, Iowa

Flood elevation profiles and flood peak discharges for the floods of 1953, 1962, 1973, and 1983 in the Floyd River basin are given in this report. The profiles cover the Floyd and West Branch Floyd Rivers. The 1953 flood is the greatest known on the Floyd River since at least 1892.
Authors
A.J. Heinitz

Water resources data Iowa, water year 1985 Water resources data Iowa, water year 1985

Water resources data for the 1985 water year for Iowa consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; ground-water levels and ground-water quality. This report contains discharge records for 111 stream-gaging stations; stage and contents for 8 lakes and reservoirs; water quality for 8 stream-gaging stations...
Authors
N.B. Melcher, M.G. Detroy, W.J. Matthes, R.E. Hansen
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