OLD BRIDGE, N.J. (AP) — For more than a month, the U.S. Environmental Protection Agency has said that the recent superstorm didn’t cause significant problems at any of the 247 toxic waste sites it’s monitoring in New York and New Jersey.

But in many cases, no actual tests of soil or water are being conducted, just visual inspections.

The EPA conducted a handful of tests right after the storm, but couldn’t provide details or locations of any recent testing when asked this week. New Jersey officials point out that the Superfund sites are the EPA’s responsibility, not the states.

Environmental groups and some residents who live near the sites are worried about the lack of testing.