Epic Cleantec's water recycling system isn't intended to produce drinking water. Instead, water from showers, toilets and washing machines is treated to make it safe to use in applications like toilet ...

To keep taps flowing in the parched Colorado River Basin, recycling water that’s already in the system seems like an easy ...

Attorneys for the city of Midland — the nation’s shale oil capital — made an unusual request to regulators this year: Could they please be allowed to challenge drilling permits? The city isn’t ...