East Central Phoenix - 40th Street and Indian School Road | Site Hydrogeology

The site is located within the West Salt River Valley sub-basin of the Phoenix Active Management Area. The Salt River Valley is an alluvial filled basin, located in the basin and range physiographic province.

The site is underlain by sandy and gravelly clay from ground surface to approximately 110 feet bgs. Bedrock is encountered at approximately 110 feet bgs. Based on 2008 measurements from monitor wells, groundwater is encountered at approximately 45 feet bgs and flows to the southwest.