Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Rowley Water 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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

15

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
2020ND40ND
2021N/A00N/A
20220.501 ppt95ND - 1.30 ppt
20230.408 ppt2210ND - 1.09 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 Result
2020-03-10ND
2020-03-10ND
2020-03-10ND
2020-03-10ND
2022-01-260.730 ppt
2022-01-26ND
2022-04-130.580 ppt
2022-04-13ND
2022-07-12ND
2022-07-120.730 ppt
2022-10-111.30 ppt
2022-10-11ND
2022-12-211.17 ppt
2023-01-09ND
2023-01-091.09 ppt
2023-01-10ND
2023-01-10ND
2023-02-060.726 ppt
2023-03-060.843 ppt
2023-04-05ND
2023-04-050.685 ppt
2023-05-110.890 ppt
2023-06-010.920 ppt
2023-07-060.939 ppt
2023-07-06ND
2023-07-10ND
2023-07-10ND
2023-08-150.946 ppt
2023-09-061.000 ppt
2023-10-02ND
2023-10-02ND
2023-10-11ND
2023-11-020.930 ppt
2023-11-29ND
2023-12-04ND