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 silt, with some sand and gravel lenses from ground surface to approximately 95 feet bgs. Bedrock is encountered at approximately 95 feet bgs. Based on measurements collected in 2008, groundwater is encountered at approximately 45 feet bgs and flows to the west-southwest.