Widespread groundwater contamination risk from chromium

When Erin Brockovich sued a major utility company in the 1990s for contaminating drinking water with hexavalent chromium, a toxic and carcinogenic metal, national attention turned to California. Now researchers have determined ...

Nano-decorations in nature's subsurface water filter

When bacteria and viruses get into well water and make people sick, often the contamination comes after heavy rain or flooding. In 2000, more than 2,300 people in Walkerton, Ontario, got sick when, after unusually heavy rains. ...

Understanding effects of climate change on California watersheds

California relies on the Sierra Nevada snowpack for a significant portion of its water needs, yet scientists understand very little about how future changes in snowpack volume and timing will influence surface water and groundwater. ...

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