Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Lakewood Water District

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.

 

25

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
2023ND170ND
2024ND50ND

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
2022-05-044314994ND
2022-09-294370029ND
2022-09-294370030ND
2023-02-284444785ND
2023-11-074543357ND
2023-11-074543359ND
2023-11-074543361ND
2023-11-074543354ND
2023-11-074543358ND
2023-11-074543360ND
2023-11-074543356ND
2023-11-074543355ND
2023-11-084543364ND
2023-11-084543365ND
2023-11-084543366ND
2023-11-084543367ND
2023-11-084543363ND
2023-11-084543368ND
2023-11-084543362ND
2023-12-134552320ND
2024-04-17380-92166-1ND
2024-04-17380-92166-2ND
2024-04-17380-92166-3ND
2024-04-17380-92166-5ND
2024-05-09380-95307-1ND