Vivienne Knopp, 7, had been living at one of the homes in which toxic chemicals had seeped into the garden soil from an underground Shell station tank, NorthJersey.com reports.
The lawsuit was filed last Thursday in Superior Court -- exactly two years after Vivienne's death - and names Shell Oil Co. and the station's owner, Tappan Realty.
The Tappan Road gas station is one of the thousands of contaminated New Jersey sites on a list by the Department of Environmental Protection.
Vivienne died Dec. 5, 2017, after her aggressive cancer battle.
Click here for more from NorthJersey.com.
Click here to follow Daily Voice Franklin Township and receive free news updates.