Highway closures and evacuations remain in effect as a wildfire burns more than 58,000 acres in far northern Coconino County. It is one of two blazes raging at or near the northern rim of the Grand ...

A historic lodge on the Grand Canyon’s North Rim is among more than 70 structures lost as a result of a fast-moving wildfire that continues to burn out of control.Video captured on July 14, shows ...

There is increased interest in using chlorine dioxide to treat drinking water for trihalomethane control, taste and odor control, oxidation of iron and manganese, and oxidant-enhanced ...