A class action suit occurs when a group of people bring a case together as representatives of an entire class of people who are similarly situated. In order to bring a class action in Louisiana, a judge must certify the class. This means that the class of plaintiffs meets the requirements for their class action to go forward. One of the requirements a class must meet to be certified is that it must have what is known as numerosity. In Louisiana numerosity is defined as meaning that the class is too large for the individual plaintiffs to pursue their claims separately or it is too large for the individual plaintiffs to be joined to the case in a practical manner. The following case illustrates what happens when questions about numerosity arise in a class action.
On May 15, 2009 a vacuum truck owned and operated by Environmental Services, Inc. was driving on Louisiana Highway 27 between Singer and DeQuincy when a valve broke and 300-500 gallons of motor oil leaked out onto the highway. The leak was discovered when the truck arrived in DeQuincy, and the impacted portion of the highway was closed within approximately 15 minutes of the truck’s arrival.
The plaintiffs seeking to certify this class action brought suit alleging that they suffered physical injury due to inhaling the fumes from the spilled motor oil and also alleged that they suffered damage to their vehicles and livestock in their vehicles from driving over the spilled oil. The plaintiffs sought to certify a class that included everyone who drove over the spilled oil before it was cleaned up.