State test results show that the drinking water in Coraopolis is contaminated. Testing shows that Coraopolis has some of the highest levels of PFAS contamination of drinking water in the state, but it does not exceed the federal advisory level. PFAS contamination has previously been found at two military bases near Pittsburgh International and Corapolis. So far the Coraopolis Water and Sewer Authority has issued any comment about the state’s test results.