On May 18, the US Environmental Protection Agency (EPA) announced the online availability of all eighteen months of data collected under the Information Collection Rule, "a national research project to support development of national drinking water standards which protect public health." Users can access the data via the ICR Query button on the left-hand side of the page. Data tables on national...

This incredibly comprehensive and well-organized site from the USGS offers visitors all sorts of information on water quality studies from all over the United States. By clicking on a map of the US, users are taken to a list of study areas, with over fifty to pick from. By clicking on an individual study, such as the Western Lake Michigan Drainages, the user is provided with a description of the...