Grace Park, the acting Union County prosecutor who broke barriers by serving as the first Asian-American county prosecutor in New Jersey's history, will be moving to the role of deputy general counsel and chief litigation counsel at Public Service Enterprise Group Inc., according to a Friday announcement.

The Union County Prosecutor's Office said in the announcement that Park, who also carries the distinction of being the county's first female and minority lead prosecutor, will leave her post after Sept. 13.

She will be replaced by Thomas Isenhour, who has spent more than 30 years at the prosecutor's office and served as first assistant prosecutor under Park. His appointment was announced Friday by Gov. Chris Christie and Attorney General Christopher Porrino.