Those interested in learning how to harvest water can attend a workshop in Oro Valley. The Water Harvesting Roundup in Oro Valley goes from 9:30 a.m. to 1 p.m. April 5 at Oro Valley Library, 1305 ...

ORO VALLEY, Ariz. (KGUN) — Water, it's a hot topic in Southern Arizona, where rainfall is a rare sight, especially outside of the monsoon season.