Concentrations of arsenic, ranging from 1.0 to 12000 micrograms per liter (ug/L), were detected in groundwater over a broad geographic region in Outagamie and Winnebago Counties in Wisconsin.

The Wisconsin Department of Natural Resources (WDNR) Northeast Region undertook this project with the thought that relevant volumes of geologic and hydrogeologic data was being gathered by the Bureau of Remediation and Redevelopment

In 1991 the U.S. Environmental Protection Agency (EPA) issued a "proposed" analytical method for radon in water (EPA Method 913.0). This method involves injecting a measured amount of sample beneath a liquid-scintillation (LS) cocktail, and then measuring the amount of radon that diffuses into the cocktail

Naturally occurring arsenic in groundwater at levels above the Drinking Water Standard (DWS = 50 ug/L) in East Central Wisconsin has resulted in the identification of an Arsenic 7 Advisory Area (AAA).

Alachlor is an herbicide used primarily to control grasses in corn and soybeans. Alachlor is manufactured by the Agricultural Group of Monsanto Company and sold under the trade name Lasso.

This study was designed to improve the detection of trace contaminants in ground water. The objectives were to (1) develop a new approach to concentrating sample analytes (while minimizing interferences)