Rocketdyne facility was up on top of the hills in Chatsworth. My dads side of the family all died of different cancers that were attributed to the toxic pollution from there. A class action suit against rocketdyne corporation seeking damages for deaths and injury caused to people in the area failed in the 2000s. They also tested rocket engines there. It would shake the whole valley when I was a kid. Edit: it is not close to Paradise though.