Lake Erie (LERI) NAWQA Surface Water Status And Trends

Science Center Objects

The Lake Erie and Lake Saint Clair (LERI) Basins in Indiana, Michigan, New York, Ohio, and Pennsylvania comprise one of more than 50 study units that are part of the USGS National Water Quality Assessment (NAWQA) Program. The long-term goals of the NAWQA program are to describe the water-quality status and trends in a large representative part of the Nation's surface-water and groundwater resources, and to provide a sound, scientific understanding of the primary factors affecting the quality of these resources. The LERI NAWQA surface-water status and trends study includes the collection of sediment and water-quality samples on the Maumee and Auglaize Rivers in Ohio. Samples have been collected on these rivers since 1994 for the NAWQA program.