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R.A. Karsten

Publications and source records attributed to R.A. Karsten.

5 recordsLinked to original sources
USGS1989

Water resources data Iowa, water year 1988

Water resources data for the 1988 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 water quality of ground-water wells. This report contains records of water discharge for 117 stream-gaging stations; stage or contents for 7 lakes and reservoirs; water quality for 9 stream-gaging stations; sediment records for 8 stream-gaging stations; water levels for 108 observation wells; and chemical analyses for 153 municipal wells. Also included are 113 crests-stage partial-record stations. Additional water data were collected at various sites, not part of the systematic data-collection program, and are published as miscellaneous discharge measurements and miscellaneous water-quality analyses.

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USGS1987

Water year 1986 in Iowa: Precipitation and water resources

Water year 1986 was the second wettest on record in Iowa since records began being kept in the late 1800's. This report examines the spatial distribution of precipitation, the deviations from normal precipitation, and the effect of the excess precipitation on the water resources of Iowa. New high ground-water levels were established in water wells and new peak stages and new peak discharges were established at stream gaging stations.

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USGS1987

Water resources data Iowa, water year 1986

Water resources data for the 1986 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 110 stream-gaging stations; stage and contents for 8 lakes and reservoirs; water quality for 8 stream-gaging stations; sediment records for 10 streamgaging stations; water levels for 108 observation wells; and chemical analyses for 214 observation wells. Also included are 116 crest-stage partial-record stations. Additional water data were collected at various sites, not part of the systematic data-collection program, and are published as miscellaneous measurements and analyses. The data represent that part of the National Data System operated:"by the U.S. Geological Survey and cooperating State and Federal agencies in Iowa.

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USGS1982

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 streams generally are flanked by flood plains underlain by uncemented sand and-gravel deposits. Most of the basin is directly underlain by glacial drift of Pleistocene age which is In turn underlain by rocks of Cretaceous age. Sand-and-gravel deposits underlying the major flood plains and in buried bedrock channels within the drift comprise the surficial aquifer. The surficial aquifer ranges from 10 to 40 feet In thickness and averages about 20 feet thick. Both unconfined and confined conditions occur in the aquifer and water levels range from 2 to 55 feet below land surface. An aquifer test conducted in the surficial aquifer where it is about 25 feet thick and is confined by an overlying low permeability bed Indicated an average hydraulic conductivity of 383 feet per day and a storage coefficient of 0.0001. The well was pumped at 650 gallons per minute for 43 hours. An observation well about 70 feet from the pumping well had a maximum drawdown of about 10 feet.

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