Describes a number of streams within watershed planning units and prioritizing these streams according to their existing contribution to the overall conservation of biological diversity in Pima County. Over 50 percent of the priority streams within the County are found within the Altar Valley and the Cienega Rincon area.

Groundwater resources of the Prescott AMA continue to be depleted on a regional basis, resulting in decreased groundwater storage in the aquifers of the area. In addition, natural groundwater discharge from the area has decreased with potential impacts on riparian areas and downstream users.