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.
Potter Valley is an unincorporated community in Mendocino County, California, United States. It is located 18 miles (29 km) north-northeast of Ukiah, at an elevation of 948 feet (289 m). It is located at the headwaters of the East Fork of the Russian River.