Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Bayview Water System

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND80ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND30ND

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
2019-02-18L7097145-1ND
2019-03-04L7105278-1ND
2019-04-08L7108859-1ND
2019-05-13L7109530-1ND
2019-07-23L7131687-1ND
2019-08-19L7132354-1ND
2019-10-21L7159876-1ND
2019-12-04L7161716-1ND
2020-01-21L7178678-1ND
2020-02-24L7180562-1ND
2021-03-03630-15418-1ND
2021-03-03630-15418-3ND
2022-01-13630-26169-1ND
2022-01-13630-26169-3ND
2023-01-24630-54084-1ND
2023-01-24630-54084-3ND
2023-08-09630-69051-1ND