Portland’s costly — and controversial — construction of a new water treatment plant east of Gresham hit a legal snag this week after a state agency overturned a key permit required for the project.

Here is why California can’t use ocean water to help fight the wildfires - Salt water can wreck a fire, but it can also wreck equipment and vegetation as well ...

Supplying clean water to people around the world is one of the great challenges of today and tomorrow. Various micropollutants (organic and inorganic substances) are present in low concentrations in ...