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EPA began requiring public water systems to monitor for PFOA and PFOS in 2012 , and published drinking water health advisories , which are non-regulatory technical documents , in 2016 .
 organization: EPA; organization: PFOA; organization: PFOS
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: EPA; organization: PFOA; organization: PFOS