A mass tort is a civil action involving numerous plaintiffs against one or a few corporate defendants. The tort may involve, for example, personal injuries suffered by numerous plaintiffs as a result of a defective product, or a mass disaster in which there were many injured persons, such as an airplane crash, or exposure of a large group of people to toxic chemicals or pharmaceuticals.
Riverdale (formerly, Liberty Settlement) is a census-designated place (CDP) in Fresno County, California, United States. The population was 2,416 at the 2000 census. Riverdale is located 23 miles (37 km) south of Fresno, at an elevation of 223 feet (68 m).