The shooting was not in EP and what do you mean it is not “clear”? They never mention EP in the movie. If you look at it, it’s pretty easy to figure out.
Filming took place at the following locations: University of Akron for approximately six weeks, Ashtabula Pine Lake Raceway and Trail Riding, Cleveland Heights, The College of Wooster, Wellington, Oberlin, Dorset, Hiram College, Andrews Osborne Academy in Willoughby , Kent. State University, at Lowell Klienfelter Stadium on the campus of Canton Central Catholic High School in Stark County, Ohio and Perry Township, near Salem and downtown Cleveland. I live in this area and was very aware of the shooting when it happened in mid to late 2021.
The EP is an hour and a half, from most of these locations. Is it possible that the EP people were extras in the movie? Sure, yes, very possible. Is it real and true to say that this movie is about a toxic train derailment in EP? No, because it isn’t.