They were trying to see if the lake could clean itself up after years of having raw sewage dumped into it.

He just swam through the raw sewage with his eyes open.

Thus, in times of high water, raw sewage is fed directly into the river.

The raw sewage pouring into the river didn't help, either.

Sludge is what remains after raw sewage has gone through a treatment plant.

But it never occurred to him that he'd ever have to swim through raw sewage.

Tons of raw sewage go in there each and every day.

However the flow of water introduced raw sewage in the river into the bay.

In 2007, roughly half of all the city's raw sewage went straight into the river.

I tried to get them a pool so they wouldn't have to swim in raw sewage.