Publications
These publications are written or co-authored by Central Midwest Water Science Center personnel in conjuction with their work at the USGS and other government agencies. They include USGS reports, journal articles, conference proceedings, and published abstracts that are available in the USGS Publications Warehouse.
Filter Total Items: 945
Water resources data, Iowa, water year 1997. Volume 2: Surface water - Missouri River Basin and ground water
No abstract available.
Authors
J.E. May, J.G. Gorman, R.D. Goodrich, V.E. Miller
Water resources data, Iowa, water year 1997. Volume 1: Surface water - Mississippi River Basin
No abstract available.
Authors
J.E. May, J.G. Gorman, R.D. Goodrich, V.E. Miller
The environmental occurrence of herbicides: The importance of degradates in ground water
Numerous studies are being conducted to investigate the occurrence, fate, and effects on human health and the environment from the extensive worldwide use of herbicides to control weeds. Few studies, however, are considering the degradates of these herbicides in their investigations. Our study of herbicides in aquifers across Iowa found herbicide degradates to be prevalent in ground water, being d
Authors
D.W. Kolpin, E. M. Thurman, S. M. Linhart
Delineation of flooding within the upper Mississippi River basin: Flood of August 1-3, 1993, in St. Louis and vicinity, Missouri
A five-sheet hydrologic investigations atlas provides flood-peak elevation data and delineates the areal extent of flooding of the Missouri, the Mississippi, and the Meramec Rivers and the River des Peres in St. Louis and vicinity from August 1 through 3, 1993. The August 1993 flood is compared with the Federal Emergency Management Agency's (FEMA) 100- and 500-year flood profiles.This atlas is one
Authors
Terry W. Alexander
Floods of September 15-16, 1992, in the Thompson, Weldon, and Chariton River basins, south-central Iowa
Water-surface-elevation profiles and peak discharges for the floods of September 15-16, 1992, in the Thompson, Weldon, and Chariton River Basins, south-central Iowa, are presented in this report. The profiles illustrate the 1992 floods along the Thompson, Weldon, Chariton, and South Fork Chariton Rivers and along Elk Creek in the south-central Iowa counties of Adair, Clarke, Decatur, Lucas, Madiso
Authors
D. A. Eash, B.A. Koppensteiner
Pesticides and volatile organic compounds in shallow urban groundwater
No abstract available.
Authors
D.W. Kolpin, P. J. Squillace, J.E. Barbash, J.S. Zogorski
Occurrence of selected organochlorine compounds in fish tissue from eastern Iowa streams, 1995
Human activities have caused dramatic changes to our Nation's landscape for over a century. Use of synthetic organic compounds in agriculture and industry has resulted in the accumulation and persistence of some of these compounds in natural systems. Concern has arisen over the contamination of our Nation's waters and the organisms that depend on them.
Authors
Linda R. Roberts
Organochlorine compounds in a sediment core from Coralville reservoir, Iowa
No abstract available.
Authors
S. J. Kalkhoff, Peter C. Van Metre
Agricultural chemicals in alluvial aquifers in Missouri after the 1993 flood
Intense rains produced flooding during the spring and summer of 1993 over much of the midwestern USA including many agricultural areas of Missouri. Because of potential contamination from floodwater, an investigation was conducted to determine the changes in concentrations of agricultural chemicals in water samples from alluvial wells in Missouri after the flood. Water samples from 80 alluvial wel
Authors
D. C. Heimann, J.M. Richards, D.H. Wilkison
Analysis of environmental data with censored observations
The potential threats to humans and to terrestrial and aquatic ecosystems from environmental contamination could depend on the sum of the concentrations of different chemicals. However, direct summation of environmental data is not generally feasible because it is common for some chemical concentrations to be recorded as being below the analytical reporting limit. This creates special problems in
Authors
S. Liu, J.-C. Lu, D.W. Kolpin, W.Q. Meeker
Water resources data, Iowa, water year 1996
No abstract available.
Authors
J.E. May, J.G. Gorman, R.D. Goodrich, M.W. Bobier, V.E. Miller
Temporal trends of selected agricultural chemicals in Iowa's groundwater, 1982-1995: Are things getting better?
Since 1982, the Iowa Groundwater Monitoring (IGWM) Program has been used to sample untreated groundwater from Iowa municipal wells for selected agricultural chemicals. This long-term database was used to determine if concentrations of select agricultural chemicals in groundwater have changed with time. Nitrate, alachlor [2-chloro-2′-6′-diethyl-N-(methoxymethyl)-acetanilide], atrazine (2-chloro-4-e
Authors
D.W. Kolpin, D. Sneck-Fahrer, G.R. Hallberg, R.D. Libra