This report documents data and information gathering efforts for 2013 through 2015 that support groundwater management activities in the Wisconsin central sands.

The need to protect watersheds from fecal contamination has led to an investigation of monitoring toolsto supplement coliform/E. coli measurements. A suite or toolbox of tests developed to s...

This project directly addressed the need for comprehensive and widespread information on spring hydrology in Wisconsin to assess impacts of high-capacity wells on spring flow rates and to characterize the susceptibility of certain spring types to impacts as a result of groundwater drawdown.

Groundwater in about 10 percent of wells open to Quaternary glacial and shallow bedrock aquifers in southeastern Wisconsin has arsenic concentrations greater than the U.S. Environmental Protection Agency’s standard of 10 μg/l.

Groundwater use in southeastern Wisconsin has resulted in more than 400 feet of drawdown in the deep sandstone aquifer since pumping begin in the 1860’s.

In Wisconsin the widespread use of the herbicide atrazine has led to the presence of atrazine and it's metabolites in some groundwaters. One of the metabolites, diaminoatrazine, is of particular interest because it is reported to pose a greater health threat (to those drinking the water) than the other metabolites.