Part of Whakatane Hospital's paediatric ward was this week closed after a new report of someone using P in a toilet a year ago.
But after the Bay of Plenty District Health Board ordered the area temporarily closed, meth test results came back clear.
The DHB's acting chief executive, Pete Chandler, said a hospital visitor told staff on Christmas Eve afternoon that they thought they had seen someone using P in a toilet in the ward a year earlier.
"We have no way of knowing if this is true, and although the alleged incident happened a year ago we decided to immediately close the area as a precaution."
The toilet was independently tested for contamination yesterday, with results finding no issue and that the area was "fine to use".