Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Greenville Water District

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

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND10ND
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND10ND

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

Date Lab ID Result
2019-04-161901713-01_TO20ND
2023-05-12D3E1467-03PFASND
2023-05-12D3E1467-01PFASND
2024-03-05M4C0353-01ND
2024-04-18M4C0731-01ND
2024-07-11M4F0673-01ND