Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

City of Caldwell

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
2023ND250ND
2024ND30ND

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
2023-04-243D25161-05ND
2023-04-243D25161-03ND
2023-04-243D25161-01ND
2023-04-243D25161-09ND
2023-04-243D25161-07ND
2023-04-253D26048-07ND
2023-04-253D26048-01ND
2023-04-253D26048-05ND
2023-04-253D26048-03ND
2023-04-263D27046-03ND
2023-04-263D27046-05ND
2023-04-263D27046-01ND
2023-10-113J12028-09ND
2023-10-113J12028-07ND
2023-10-113J12028-05ND
2023-10-113J12028-03ND
2023-10-113J12028-11RE1ND
2023-10-113J12028-01RE1ND
2023-10-183J19036-07ND
2023-10-183J19036-05ND
2023-10-183J19036-03RE1ND
2023-10-183J19036-01ND
2023-10-183J19036-09ND
2023-10-183J19036-11ND
2023-10-183J19036-13ND
2024-04-154D16049-03ND
2024-04-154D16049-05ND
2024-04-154D16049-01ND