Robert Darner
Science and Products
Forecasting bacteria levels at bathing beaches in Ohio
The U.S. Geological Survey developed models for predicting exceedance of the bathing-water standard for Escherichia coli (E. coli) at three Lake Erie beaches and one inland lake in Ohio. The statistical models were specific to each beach, and the best model for each beach was based on a unique combination of environmental and water-quality...
Francy, Donna S.; Darner, Robert A.
Ground-water quality in Geauga County, Ohio—Review of previous studies, status in 1999, and comparison of 1986 and 1999 data
Most residents in Geauga County, Ohio, rely on ground water as their primary source of drinking water. With population growing at a steady rate, the possibility that human activity will affect ground-water quality becomes considerable. This report presents the results of a study by the U.S. Geological Survey (USGS), in cooperation with the Geauga...
Jagucki, Martha L.; Darner, Robert A.
Factors affecting Escherichia coli concentrations at Lake Erie public bathing beaches
The environmental and water-quality factors that affect concentrations of Escherichia coli (E. coli) in water and sediment were investigated at three public bathing beachesEdgewater Park, Villa Angela, and Sims Parkin the Cleveland, Ohio metropolitan area. This study was done to aid in the determination of safe recreational use and to help water-...
Francy, Donna S.; Darner, Robert A.
How do we determine when the beaches are safe for swimming?
The use of Lake Erie and other public waters for swimming is a valuable recreational resource for the people of Ohio and elsewhere in the United States. Water-resource managers and the scientific community have recognized the need for rapid methods to determine the quality of these recreational waters to adequately protect public health.Fecal-...
Veley, Ronald J.; Francy, Donna S.; Darner, Robert A.