"Everyone has to remember that putting a site on the Superfund list doesn't guarantee a quick cleanup," the commissioner said.

It had never appeared on the Superfund list.

Ten years ago, the site was added to the Superfund list and cleanup began.

In 1994 it was added to the federal Superfund list of toxic waste sites.

Despite this, it is still on the Agency's Superfund list.

It has been on the Superfund list of the state's most contaminated properties since 1989.

Cleanup has been completed, and the site taken off the Superfund list in 2004.

The site was placed on the Superfund list in 1989, city officials said.

This study was conducted nearly ten years after the site had been deemed the number one most contaminated site on the Superfund list.

The area was added to the federal Superfund list in 1983.