Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Putnam Community Water Association Public 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.

 

12

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
2020ND60ND
2021ND40ND
2022N/A00N/A
2023ND20ND

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
2020-07-14EFA-4672150ND
2020-07-14EFA-4672151ND
2020-07-14EFA-4672150ND
2020-07-14EFA-4672151ND
2020-10-07EFA-4746783ND
2020-10-07EFA-4746783ND
2021-02-18DES-21021903-02ND
2021-02-18DES-21021903-02ND
2021-04-21DES-21042203-02ND
2021-04-21DES-21042203-02ND
2023-05-08104142PND
2023-11-20109875PND