Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Candlewood Park 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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND60ND
2022ND30ND
20230.463 ppt21ND - 0.926 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
2021-05-05L2123478-03-PFASND
2021-05-05L2123478-01-PFASND
2021-08-31L2147014-03-PFASND
2021-08-31L2147014-01-PFASND
2021-11-17L2163681-02-PFASND
2021-11-17L2163681-PFASND
2022-05-3122F0195-01-PFASND
2022-05-3122F0195-03-PFASND
2022-08-09420-231874-1-PFASND
2023-04-12CN82716-PFAS0.926 ppt
2023-07-19CO54708-PFASND