This report details the water-resources investigations conducted by the U.S. Geological Survey in Wisconsin during 2004. The United States Geological Survey (USGS), established in 1879, is a scientific agency within the U.S. government dedicated to exploring and understanding our environment. With over 10,000 employees, the USGS collects, monitors, and analyzes data to better comprehend natural dangers and environmental issues. This report is one of their publications, providing reliable, investigated information to enhance and protect the quality of life.

This USGS Open-File Report serves as a technical record of scientific activities. As a government publication, its primary audience consists of researchers, environmental managers, and policymakers who rely on detailed data for informed decision-making. The report's value lies in its specific data and findings concerning Wisconsin's water resources for the year 2004, contributing to the broader scientific understanding of hydrological systems.