There are government agencies who are also involved in overseeing what happened at Hyperion. 

The South Coast Air Quality Management District (AQMD) is the law enforcement agency that issues tickets to polluters who create dangerous and noxious odors.  AQMD held a hearing on its investigation of Hyperion on September 6, 2022, at 9:00 a.m.  If you missed the live hearing, you can re-watch it on AQMD’s YouTube Page:

You can file complaints or call 1.800.288.7664 if you smell anything.