Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

City of Sherwood

NOTE: City of Sherwood purchases water from City of Wilsonville which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by City of Wilsonville.

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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

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: City of Sherwood purchases water from City of Wilsonville which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by City of Wilsonville.

Date Lab ID Result
2014-03-18201403190630AMND
2014-06-11201406120550AMND
2014-09-16201409170741AMND
2014-12-02201412030685AMND