NAHANT, Mass. (WHDH) -- Debris, including everything from water bottles to human waste, washed up onto a quiet Nahant beach, and town officials believe it all came from a cruise ship.

The debris was found on Pond Beach. The beach is quiet due to its rockiness, but it’s located near a popular beach.

“Packages of human excrement, rubber gloves, flip flops, water bottles,” said the president of Safer Waters in Massachusetts.

The president of Safer Waters in Massachusetts. She says Nahant’s harbormaster took photos of the debris and found a cruise liner room tag amongst the sewage.

“I’m sure it’s from the ship. It makes perfect sense to me, because the little tag is right in there with the rest of the stuff,” said

Officials say bagged human waste and a commercial-grade urinal cake are two clues.

So where was the debris allegedly dumped? The Coast Guard says cruise ships have to be at least nine miles off the Nahant coast before dumping becomes legal. Coast Guard authorities say the sewage may have just washed up.

“It’s a wake-up call. A big wake-up call for any cruise liner or any boat out there…to think that they can just throw refuse into this harbor. Not going to get away with it,” one woman said.

“I think they should take action against the cruise liner if that’s what happened,” another woman said.

The Coast Guard says this kind of dumping is hard to prove unless there were witnesses.