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Nowcast Beach Status

NowCast – A daily nowcast of recreational water quality conditions

Nowcast predicts water quality conditions at select beach swimming areas in Lake Erie and Lake Ontario. Predictions are only posted during the beach swimming season in Ohio, Pennsylvania, and New York. 

MODFLOW

MODFLOW is the USGS's three-dimensional (3D) finite-difference groundwater model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions.

SPARROW

SPARROW (SPAtially-Referenced Regression On Watershed attributes), is watershed based and designed for use in predicting long-term average values of water characteristics, such as concentrations and amounts of selected constituents that are delivered to downstream receiving waters.

StreamStats

StreamStats is a Web application that incorporates a Geographic Information System (GIS) to provide users with access to an assortment of analytical tools that are useful for a variety of water-resources planning and management purposes, and for engineering and design purposes.

USGS Water Services

This site serves USGS water data via automated means using web services and extensible markup language (XML) , as well as other popular media types. Services are invoked with the REST protocol. These services designed for high fault tolerance and very high availability.

Louisville aquifer site locations

The alluvial aquifer at Louisville, Kentucky, lies in a valley eroded by glacial melt-water that was later partly filled with outwash sand and gravel deposits. To monitor the groundwater levels, twenty-eight existing wells were incorporated into an observation well network, which is measured quarterly. Hydrographs from the continuous recorder wells depict the trends in the groundwater levels.