The Groundwater Character Map

About one-half of the U.S. population relies on groundwater for drinking water. The the States Geological Survey is responsible for the National Water Quality Assessment Project, assessing water-quality atmospheric condition too whether these atmospheric condition are improving or deteriorating over time.

The results of these changing atmospheric condition are available inward a novel USGS interactive map, A Decadal Look at Groundwater Quality. The map shows the concentrations of pesticides, nutrients, metals, too organic contaminants inward groundwater too how these accept changed over 10 years.

Using the map you lot tin mail away direct to sentiment the attempt out results for a large pose out of organic too inorganic constituents. Scaled arrow markers on the map hollo for whether the tested aquifers showed an increase or decrease inward the selected element betwixt the decadal testing. For example, if you lot direct to sentiment the results for chlorine, the arrow markers on the map demo that virtually wells tested accept shown an increase inward chlorine over the 10 years betwixt the ii latest tests.