Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

West Sound Utility District #1

Perfluorononanoic acid, otherwise known as PFNA or C9, is a PFC similar in function and use to PFOA. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND200ND
2024ND80ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppt

The EWG Health Guideline of 6 ppt for perfluorononanoic acid was defined by EPA recommended application of the toxicity value for PFDA published in the Integrated Risk Information System’s toxicological review . This health guideline harm to the immune system and harm to fetal growth and child development.

EPA Maximum Contaminant
Level (MCL): 10 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2023-07-054480111ND
2023-07-054480108ND
2023-07-054480115ND
2023-07-054480104ND
2023-07-054480110ND
2023-07-054480109ND
2023-07-054480109ND
2023-07-054480113ND
2023-07-054480113ND
2023-07-054480113ND
2023-07-054480106ND
2023-07-054480106ND
2023-11-154548804ND
2023-12-20380-76081-2ND
2023-12-20380-76089-1ND
2023-12-20380-76089-3ND
2023-12-20380-76087-1ND
2023-12-20380-76089-2ND
2023-12-20380-76087-2ND
2023-12-20380-76081-1ND
2024-06-25380-101456-1ND
2024-06-25380-101456-5ND
2024-06-25380-101466-1ND
2024-06-25380-101456-4ND
2024-06-25380-101456-3ND
2024-06-25380-101456-2ND
2024-07-29380-106285-1ND
2024-07-29380-106289-1ND