Unified Interior Regions

Region 4: Mississippi Basin

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Filter Total Items: 4,441
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Year Published: 1982

Water resources data Iowa, water year 1981

This report was prepared by personnel of the Iowa district of the Water Resources Division of the U.S. Geological Survey under the supervision of 0. G. Lara, Acting District Chief, and Alfred Clebsch, Jr., Regional Hydrologist, Central Region. It was done in cooperation with the State of Iowa and with other agencies. This...

Water resources data Iowa, water year 1981; 1982; WDR; IA-81-1; Geological Survey (U.S.)

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Year Published: 1982

Some observations on the ecology and fish management of reservoirs in the United States

By 1980 there were 1,608 reservoirs (over 202 ha each) with a surface area of 4 million ha in the United States. Construction of new reservoirs has decreased in recent years because of the lack of suitable sites and the opposition of environmental interests. Reservoirs have characteristics of both lacustrine and riverine ecosystems. Reservoirs...

Benson, N. G.

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Year Published: 1982

Toxaphene residues in fish: Identification, quantification, and confirmation at part per billion levels

No abstract available.

Ribick, M.A.; Dubay, George R.; Petty, Jimmie D.; Stalling, David L.; Schmitt, Christopher J.

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Year Published: 1982

Hydrology of the surficial aquifer in the Floyd River Basin, Iowa

The Floyd River basin was studied to provide water-resources Information for a typical surficial aquifer in northwest Iowa. Data collection included test drilling, water-level measurements, and chemical analyses of surface and ground water. The Floyd River basin drains 961 square miles of highly dissected to gently rolling topography. Major...

Wahl, K.D.; Meyer, M.J.; Karsten, R.A.

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Year Published: 1981

Floods in the English River basin, Iowa

Information describing floods is essential for proper planning, design, and operation of bridges and other structures on or over streams and their flood plains. This report provides information on flood stages and discharges, flood magnitude and frequency, bench mark data, and flood profiles for the English River and some of its tributaries....

Heinitz, A.J.; Riddle, D.E.
Floods in the English River basin, Iowa; 1981; OFR; 81-67; Heinitz, A. J.; Riddle, D. E.

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Year Published: 1981

An ecological characterization of the central and northern California coastal region. Vol. 4, part 2 (chapter 17-29): watersheds and basins

Jones and Stokes Associates, Inc.
An ecological characterization of the central and northern California coastal region. Vol. 4, part 2 (chapter 17-29): watersheds and basins; 1981; Federal Government Series; FWSOBS; 80/48.2; edited by Jones and Stokes Associates Inc.

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Year Published: 1981

Surface-water quality, Twin Ponies watershed, Pottawattamie and Mills counties, Iowa

Existing surface-water quality in the Twin Ponies watershed is significantly affected by runoff from agricultural lands that comprise most of the area. Runoff effects include the addition of phosphate, organic nitrogen, fecal bacteria, trace metals, pesticides and notably suspended sediment to streaMflow, because runoff commonly is a transport...

Detroy, Mark G.
Surface-water quality, Twin Ponies watershed, Pottawattamie and Mills counties, Iowa; 1981; OFR; 81-679; Detroy, Mark G.

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Year Published: 1981

Water resources data for Iowa, water year 1980

This report was prepared by personnel of the Iowa district of the Water Resources Division of the U.S. Geological Survey under the supervision of D. K. Leifeste, District Chief, and Alfred Clebsch Jr., Regional Hydrologist, Central Region. It was done in cooperation with the State of Iowa and with other agencies. This report is...

Water resources data for Iowa, water year 1980; 1981; WDR; IA-80-1; Geological Survey (U.S.)