A recent study by researchers at Columbia University revealed the states that had the highest levels of deadly arsenic in ...

The only counties without an at-risk water system were Lassen, Modoc and San Francisco. The report found that 61 percent of the state's 3,055 public water systems were not at risk of failing.

New Mars water map reveals history of Red Planet. News. By Robert Lea published 25 August 2022 ... Not only do these results suggest that water was prevalent and important in shaping Mars, ...

30 million Americans live in areas where surface water supply struggles to meet demand, according to a new assessment by the U.S. Geological Survey (USGS).. The report highlights alarming ...

But to date, only about 25% of it has been surveyed in this way. To produce a global picture of the seafloor, researchers have relied on satellite data. Why seafloor maps matter ...

The maps show nitrate levels in domestic well water, with levels from none detected to more than 25 milligrams per liter, for more than 1,700 households in the region. The well testing was part of ...

MAP: Fluoride in Drinking Water, by State Fluoride helps prevent tooth decay, but some local governments are opting out of the water additive. By Jaclyn Jeffrey-Wilensky ...