Emergency Water Supply Restoration Act - Allows state agencies and political subdivisions, when a state of emergency declared by the governor of a state authorizes access to, reconstruction of, repairs to, or restoration of water sources, supplies, or infrastructure in a wilderness area to take all reasonable and necessary means to access, reconstruct, repair, or restore such sources, supplies, or infrastructure.
Prohibits federal agencies from interfering or otherwise impeding such access, reconstruction, repairs, or restoration during a declared state of emergency.