Nitrate-Contaminated Drinking Water Followback Study
Nitrate is one of the most common contaminants found in Wisconsin's groundwater. Groundwater naturally contains traces of nitrate that are produced by decaying vegetation and transported through soil by rainwater and snow melt.
Agrichemical Loading to Groundwater Under Irrigated Vegetables in the Central Sand Plain
Agrichemicals are widespread groundwater pollutants in many agricultural regions of the US, including the Wisconsin central sand plain.
Relationships Between Private Well Water, Stream Base Flow Water, and Land Use in the Tomorrow-Waupaca River Watershed
Agricultural practices that lead to groundwater pollution by nitrate-N and pesticides remain one of the major environmental issues facing Wisconsin and the nation.
Characterization of E. coli and Total Coliform Organisms Isolated from Wisconsin Waters and Reassessment of their Public Health Significance
In 1989 the U.S. Environmental Protection Agency promulgated Revised National Primary Drinking Water Regulations pursuant to the federal Safe Drinking Water Act. For Wisconsin, the law drastically increased the number of water systems required to test for microbiological contaminants.
Northeast Region Public Water Supply Location Utilizing GIS and GPS
Project was for data collection only, no data or report submitted (WDNR communications, 2010).
Collection of Hydraulic and Geologic Data to Improve the Quality of the Wisconsin Observation-Well Network
The Wisconsin Geological and Natural History Survey (WGNHS) in cooperation with the U.S. Geological Survey (USGS) has maintained a ground-water observation-well network since 1946 (Zaporozec, 1982).