Groundwater Hydrogeology of an Agricultural Watershed
Wisconsin is fortunate to have outstanding groundwater resources. But increasingly these resources are being stressed. The most obvious stresses involve contamination from a variety of sources, including septic systems, landfills, underground tanks, and agricultural chemicals
Evaluation of Shallow Soil Absorption Fields Receiving Recirculated Sand Filter Wastewater Effluent
Three shallow, low-pressure dosed soil absorption fields receiving wastewater from septic tank systems using recirculating sand filters were evaluated for treatment effectiveness in removal of inorganic nitrogen and fecal coliform bacteria.
Naturally Occurring Arsenic in Sandstone Aquifer Water Supply Wells of Northeastern Wisconsin
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.
GIS as a Tool to Prioritize Environmental Releases, Integrate Their Management and Alleviate Their Public Threat
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
Factors Effecting the Determination of Radon in Groundwater
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
Study of Well Construction Guidance for Arsenic Contamination in Northeast Wisconsin
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).