The U.S. Army Corps of Engineers has closed Tatman Run Beach at Raystown Lake due to a high level of E. coli bacteria found in a water sample taken from the swimming area.

According to a press release, the beach will reopen when water sample results are cleared for public access and the bacteria level is back within the “safe” range for swimming. The boat launch and picnic shelter will remain open, and the area will still be open for non-swimming day-use activities.

While officials did not have an exact reason for the elevated E. coli levels, they surmised that the rise could be due to recent high-water events.

The closure does not affect Seven Points Beach, which will remain open for Memorial Day weekend.