Municipal wastewater treatment facilities, industrial dischargers, and power generating stations are point source dischargers along the coast of the Oxnard plain. Water quality at the numerous beaches has been very good with a few exceptions. Two power generating stations were built in the 1960s to take advantage of the ocean for cooling. The Oxnard City council tried to prevent a third plant from being built in 2012. After years of legal tussles, the McGrath Peaker Plant was built by Edison next to the existing power plant at Mandalay.