Remember this video from Friday of a man dumping dark liquid into a storm drain in Ewa Beach?

The Department of Health investigated, and confirmed it's only dirty water from his backyard, and not oil. 

Over the weekend Kurt Favella of the Ewa Beach Neighborhood Board told Island News the man in the video and his family received death threats after the video went viral.

Favella says the man has since apologized and hired a clean-up crew to clear out the drain.

According to the Department of Facility Maintenance dumping any type of chemical or sediment into a storm drain is illegal.

If you witness it happening you're asked to report it to the City's Environmental Concern Line at 768-3300.