Drinking water from the Great Smoky Mountains National Park is contaminated with cyanide and has a toxic level of arsenic that could kill you, a recent report says.
The report by the U.S. Environmental Protection Agency (EPA) and the Center for Biological Diversity, which has been tracking drinking water samples since 1998, found that some samples from the park’s drinking water supply have a toxic arsenic content of nearly 2,500 parts per billion.
In addition, there are nearly 30 samples that contain arsenic levels above the EPA standard of 5,000 parts per million.
The arsenic levels were found in all three samples, the report says, including two samples from a well that is owned by the Park Service, and one from a drinking water treatment plant.
It is not clear whether the arsenic levels have been caused by mining, pollution, or the chemical compound thallium.
EPA did not immediately respond to a request for comment.
The Park Service said the arsenic level in drinking water has decreased significantly since 1998 and that there is no reason to believe that the levels have increased in the meantime.
The report notes that some of the water samples in the park were tested in 2007 and 2014, which means they are more recent.
“The drinking water quality in the Great Smokey Mountains National Forest is extremely safe, and our staff regularly monitors and tests our water supply to ensure that all of the drinking water meets the highest standards of drinking water safety,” Park Service spokesman Brian Hensley said in a statement.
“We are committed to maintaining a safe and healthy environment for our park visitors and will continue to work with the EPA and the Park District to ensure drinking water from this park remains safe and safe for everyone.”