Wastewater

More than two years after Valley Water Management Company settled with environmental groups to halt discharges at two facilities where wastewater seeped into groundwater, Race Track Hill and Fee 34 are finally closed.

In California's Central Valley, the oil industry has been dumping wastewater into unlined—and under-regulated—ponds, threatening the state's limited groundwater and the humans who rely on it.

Big Sky, Montana, is looking to become one of a handful of cities to tackle its water shortage problem through snowmaking with sewage-treated water.

What you need to know about the sustainable alternative to desalination.

A variety of oil and natural gas activities cause earthquakes, and mitigating the risks will require new tools and new openness from industry.