Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

East Orange County Water District - Rz

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND40ND
20202.87 ppt332.80 ppt - 3.00 ppt
20212.62 ppt662.10 ppt - 3.20 ppt
20222.30 ppt332.20 ppt - 2.40 ppt
20232.90 ppt552.70 ppt - 3.10 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
2019-04-23CA3010068_001_001-201904230915ND
2019-06-04CA3010068_001_001-201906040840ND
2019-09-03CA3010068_001_001-201909030915ND
2019-11-05CA3010068_001_001-201911050940ND
2020-01-21CA3010068_001_001-2020012108203.00 ppt
2020-10-19CA3010068_001_001-2020101908552.80 ppt
2020-10-19CA3010068_001_001-2020101908402.80 ppt
2021-03-02CA3010068_001_001-2021030209052.60 ppt
2021-03-02CA3010068_001_001-2021030209102.70 ppt
2021-05-04CA3010068_001_001-2021050409452.90 ppt
2021-05-04CA3010068_001_001-2021050409403.20 ppt
2021-08-19CA3010068_001_001-2021081909052.10 ppt
2021-10-13CA3010068_001_001-2021101309052.20 ppt
2022-01-13CA3010068_001_001-2022011309102.20 ppt
2022-04-20CA3010068_001_001-2022042011302.30 ppt
2022-08-02CA3010068_001_001-2022080209102.40 ppt
2023-01-26CA3010068_001_001-2023012609252.70 ppt
2023-01-26CA3010068_001_001-2023012609202.80 ppt
2023-04-04CA3010068_001_001-2023040409052.90 ppt
2023-08-08CA3010068_001_001-2023080808303.10 ppt
2023-11-14CA3010068_001_001-2023111409203.00 ppt