Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Wilton Water & Sewer Authority

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND30ND
2023ND120ND

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
2022-08-05JH2206875-PFASND
2022-08-05JH2206877-PFASND
2022-08-05JH2206876-PFASND
2023-03-13102365PND
2023-03-13102366PND
2023-03-13102367PND
2023-03-13102368PND
2023-05-08JH2303304-PFASND
2023-05-08JH2303303-PFASND
2023-07-11106400RND
2023-09-18108008PND
2023-09-18108009PND
2023-09-18108010PND
2023-09-18108011PND
2023-12-12111310PND