New Jersey police say a woman fell off a catwalk and plunged to her death at a Superfund site.

MyCentralJersey.com reports (http://mycj.co/2clbgUF ) authorities responded to the Crown Vantage Landfill Superfund site in Alexandria Township on Friday night.

State police say the 20-year-old woman was with several of her friends when she fell off the catwalk near a smokestack. She was declared dead at the scene.

The landfill is located near the Delaware River. It had been used by a paper mill to dump hazardous waste from the 1930s to the 1970s.

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Information from: Courier News (Bridgewater, N.J.) , http://www.mycentraljersey.com