Over 30 possible sites in Arroyo Grande, Grover Beach and Oceano were identified as possibilities for a treatment facility. The site in Grover Beach was selected for several reasons. Firstly, the treated wastewater effluent from Pismo Beach runs in a pipe along the Highway, so locating the facility nearby minimizes costs for piping and pumping. Secondly, this vacant industrial property in Grover Beach was available for purchase at a relatively low price compared to other properties. Thirdly, this property is close to the proposed injection wells in Grover Beach and Oceano, which are located in this area to create a seawater intrusion barrier to protect the groundwater basin. This proximity minimized costs by requiring less piping than locations further out. Lastly, if Phase 2 of the project is constructed involving wastewater from the South San Luis Obispo County Sanitation District, this location is more suitable for these potential future flows.