A radioactive wasp nest was discovered in South Carolina at the site of a facility that used to produce materials for nuclear bombs.

On July 27, the U.S. Department of Energy released a report confirming that on July 3, a wasp nest with “legacy contamination” on a stanchion was near a tank at the Savannah River Site.

Despite the nest having a radiation level 10 times higher than federal regulations allow, the organization stated that no wasps posed a threat to the public. 

“The wasp nest was sprayed to kill wasps, then bagged as radiological waste. The ground and surrounded area did not have any contamination,” the report said.

“The delay in reporting was to allow time for reviewing previous wildlife contamination for consistency in reporting criteria. No further action was required in the field. There is no impact from event on other activities and operations,” the U.S. Department of Energy continued.

Legacy radioactive contamination means lingering radioactive contamination comes from prior activity, per WYFF4.

Though the U.S. Department of Energy said the threat has been terminated, Tom Clements, executive director of watchdog group Savannah River Site Watch, told the Associated Press that the chance for danger could still be present.

“I’m as mad as a hornet that SRS didn’t explain where the radioactive waste came from or if there is some kind of leak from the waste tanks that the public should be aware of,” Clements told the AP. 

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The Savannah River Site was built in 1951 as a means to produce material for nuclear weapons, primarily tritium and plutonium, to support America’s defense programs, according to the SRS website.

SRS celebrated its 50th anniversary in 2000, and multiple tanks were operationally closed in the years that followed. It now functions as a cleanup and environmental remediation facility.