Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Collegeville Trappe Joint Public Works Department

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

6

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
2020ND10ND
2021ND10ND
2022N/A00N/A
20230.655 ppt246ND - 4.09 ppt

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
2020-02-11ND
2021-01-12ND
2023-03-20102424PND
2023-03-20102420PND
2023-03-21102418PND
2023-03-21102421PND
2023-03-21102419PND
2023-03-22102423PND
2023-03-22102422PND
2023-08-2129496145.001.91 ppt
2023-08-2129496144.00ND
2023-09-18108066PND
2023-09-18108065PND
2023-09-18108060PND
2023-09-18108062PND
2023-09-20108061PND
2023-09-20108063PND
2023-12-0430244438.00ND
2023-12-0430244442.003.12 ppt
2023-12-0430244443.004.09 ppt
2023-12-0430244441.002.73 ppt
2023-12-0430244439.001.83 ppt
2023-12-0430244440.002.04 ppt
2023-12-1830244758.00ND
2023-12-1830244757.00ND
2023-12-1830244756.00ND