This research was a pilot study examining exurban housing development, on-site wastewater treatment systems (OWTS), and private well-water quality in an unincorporated and unsewered area of Ozaukee County, Wisconsin.

This report summarizes data and information gathering activities that supported groundwater management in the Wisconsin central sands for the period July 2016 through June 2017.

Population growth and urban expansion near many Wisconsin cities has resulted in residential development on agricultural land in rural areas.

The project discussed in this final report is based on earlier studies performed at the University of Wisconsin — Madison regarding MCL of arsenic and treatment methods.

The health of wetlands is essential for maintaining overall environmental health as wetlands play an integral role in the storage of water after flood events, recharge and discharge to the local aquifer, balancing of baseflow and the regulation of water quality (Carter, 1986).