Groundwater Management Plan Development

The Puente Basin is a relatively small groundwater basin that spans approximately 20 square miles and is located in eastern Los Angeles County. Puente Basin is nestled between the San Jose and Puente Hills to the north and the south and shares a boundary with the Spadra Basin and Main San Gabriel Basin to the east and west. San Jose Creek flows through the basin from the northeast to the west. Three water districts overlay the Puente Basin boundary: Walnut Valley Water District, Rowland Water District, and Upper San Gabriel Valley Municipal Water District.