Suffolk Superior Court has ordered an East Boston auto ­repair shop owner to pay hefty fines and clean up hazardous waste polluting the Belle Isle Marsh Reservation.

The court fined Manuele Scata, who owns D & M Auto Doctor at 1181 Bennington St., in the Orient Heights section, nearly $180,000 and ordered him to clean up debris and ­petroleum products polluting the reservation, the last salt marsh in the city, which is owned by the Commonwealth and managed by the Department of Conservation and ­Recreation.