NEWARK - Crews are hard at work to bring a Newark sewage treatment plant back to full capacity.

Superstorm Sandy flooded the Passaic Valley Treatment Plant in Newark and put it out of commission for several days.

With no power and water completely covering critical machinery, the plant could not treat the sewage. Millions of gallons of raw or partially treated sewage spilled into area waterways.

Officials with the Department of Environmental Protection (DEP) are closely watching water quality numbers in the area. They say bacteria levels are dropping, but still pose concerns for public health. They are warning against any fishing in the Hudson, Hackensack, Passaic, and Raritan rivers.