What are the advisory levels of PFAS?

The U.S. Environmental Protection Agency (EPA) has set a health advisory level for PFAS in drinking water not to exceed 70 parts per trillion (ppt) for the combined amount of PFOS and PFOA. That is the level, or amount, below which no harm is expected from these chemicals, based on daily consumption over a lifetime.

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1. What is PFAS?
2. What is being done to protect our drinking water from PFAS?
3. What are the advisory levels of PFAS?
4. Has there been any detection of PFAS from the source-water being used by ACWWA?
5. How does the Colorado Department of Public Health and Environment (CDPHE) regulate PFAS?