Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Winthrop Harbor

NOTE: Winthrop Harbor purchases water from Lake County Public Water District which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by Lake County Public 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.

 

10

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
2020ND30ND
2021ND50ND
2022ND20ND
2023N/A00N/A
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

NOTE: Winthrop Harbor purchases water from Lake County Public Water District which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by Lake County Public Water District.

Date Lab ID Result
2020-11-094771346ND
2020-12-154797442ND
2020-12-154797444ND
2021-01-194816765ND
2021-10-05810-4275-1ND
2021-10-05810-4275-2ND
2021-10-05810-4275-3ND
2021-10-05810-4275-4ND
2022-02-07810-14325-1ND
2022-02-28810-16254-1ND