The quality of groundwater is determined mainly by the lithology of the geological formations through which it flows.

Cooper Fritz, an aquifer recharge program coordinator for the Idaho Department of Water Resources, spoke to a small crowd ...

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As groundwater aquifers dry up near some of the most populous areas, officials have blocked thousands of new homes from being built in and around the booming Phoenix metropolitan area.

Is it located in an urban area? Does it tap into a shallow aquifer that could be easily polluted when chemicals spill onto the ground? “If you have shallow groundwater, and you’re near an urban area, ...

Lisa Glenn has seen what happens when a rural desert community’s groundwater aquifer is pushed past its breaking point. For 57 years, she’s lived in Willcox, Arizona, where farms dot the ...

The Arizona Department of Water Resources has begun the process of designating the Willcox Basin in southeastern Arizona as an Active Management Area, the strictest form of groundwater regulation ...

Approximately 71 to 95 million people in the Lower 48 states -- more than 20% of the country's population -- may rely on groundwater that contains detectable concentrations of per- and ...

This lack of rain is taking a heavy toll on area lakes, reservoirs, and rivers, and it is also noticeably visible in the recent levels of the Edwards Aquifer. The water level for the Edwards ...

*Department of Biostatistics, University of Washington, Seattle, Washington 98195, United States Department of Statistics, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States ...