Brought before the Mono County Superior Court by the National Audubon Society (NAS), Mono Lake Committee (MLC), and others in 1979. The Public Trust Suit is the cornerstone of the legal efforts to protect Mono Lake. The Suit charged that the Los Angeles Department of Water and Power's (LADWP) water diversions violated the "Public Trust Doctrine." In 1983, the California Supreme Court ruled that the state has an obligation to protect places such as Mono Lake "as far as feasible," even if this means reconsidering past water allocation decisions. The court also ruled that the courts and the State Water Resource Control Board(SWRCB) have concurrent jurisdiction in cases of this kind.