On 27 April 2004 an underground 14-inch diameter petroleum pipeline owned or operated by Kinder Morgan Energy Partners, L.P. (KMEP) and SFPP L.P. ruptured and discharged approximately 123,774 gallons of diesel fuel (grade 2-D) into a managed marsh located within Suisun Marsh near Fairfield, California. The discharge of diesel fuel was contained within the privately owned Drake Sprig Duck Club. The Drake Sprig Duck Club includes approximately 224 acres of managed wetlands.