Arizona is has the second-highest rate of wastewater reuse in the Colorado River basin, according to a new study. And it plans to increase that rate.

A new study gives Arizona and Nevada high marks for their reuse of treated sewage effluent as a way to reduce Colorado River use, but says the other five river basin states have a long way to go.

Federal officials say plan for water cuts from 3 Western states is enough to protect Colorado River The U.S. Department of the Interior is throwing its support behind a proposal by Arizona ...