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One in five private wells contaminated according to USGS
About 20% of untreated water samples from public, private, and monitoring wells across the nation contain concentrations of at least one trace element, such as arsenic, manganese and uranium, at...
View ArticleU.S. Geological Survey says benzene in California groundwater is mostly...
Benzene occurs infrequently in California public supply wells and comes predominantly from naturally occurring petroleum deposits deep in the ground, according to a study by the U.S. Geological...
View ArticleCalifornia desert aquifers used for drinking water have high levels of...
The U.S. Geological Survey reports that inorganic elements - arsenic, boron, fluoride, and five other inorganic elements - have been detected at high concentrations in 35 percent of untreated...
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