The U.S. Geological Survey compiled more than 230 aquifer studies for a snapshot of groundwater quality in 62 principal aquifers the United States. The map above shows the percentage of wells in each ...

The United States Geological Survey (“USGS”) updated in May its health-based screening levels (“HBSLs”). USGS describes HBSLs as non-enforceable water-quality benchmarks. USGS states that these ...

TACOMA, Wash. (AP) — The U.S. Geological Survey says a “benchmark” glacier in Washington’s north Cascades continues to lose mass as a result of climate change. A USGS report presents measurements in ...

(Beyond Pesticides, March 31, 2009) More than 20 percent of private domestic wells sampled nationwide contain at least one contaminant at levels of potential health concern, according to a study by ...

US Geological Survey has released a report that concludes that pesticides are typically present throughout the year in most streams in urban and agricultural areas. The report also concludes ...

More than one-third of the U.S. population uses drinking water from contaminated public wells, according to a 14-year-long study by the U.S. Geological Survey that was released late last week. The ...

More than 20 percent of untreated water samples from 932 public wells across the nation contained at least one contaminant at levels of potential health concern, according to a new study by the U.S.

More than 20 percent of untreated water samples from 932 public wells across the nation contained at least one contaminant at levels of potential health concern, according to a new study. The study ...

(Beyond Pesticides, March 20, 2008) A 2000-2005 U.S. Geological Survey (USGS) study, Pesticide Occurrence and Distribution in the Lower Clackamas River Basin, Oregon, 2000-2005, finds a variety of ...

Earlier this month, the headline “New Study Finds PFAS 'Forever Chemicals' in Drinking Water from 45% of Faucets Across US” led many news reports. That's after 32 individual PFAS were tested and found ...

Today, the U.S. Geological Survey released a report describing the occurrence of pesticides in streams and ground water during 1992-2001. The report concludes that pesticides are typically present ...