Western Municipal Water District (District) proposes to install a new connection on its existing Roosevelt Tank consisting of new inlet pipeline with an air-gap between the tank and inlet pipeline. The Roosevelt tank is a 5MG welded steel tank that is currently used to store non-potable water for irrigation. In the near future, recycled water will also be available and stored in the Roosevelt Tank. The proposed connection will physically separate the tank from the inlet pipeline. The Roosevelt Tank will have the same storage capacity after the project is complete.