A jury has ordered Shell Oil Company to pay the City of Atwater a total of $63 million in damages in a groundwater pollution suit.

The decision, reached Friday after a four-month trial in Merced County Superior Court, awarded Atwater $53 million in compensatory damages and $10 million in punitive damages, according to a news release from the city.

The lawsuit stemmed from the highly toxic chemical 1,2,3-Trichloropropane (TCP), which can pose a risk to public health and can contaminate drinking water.