Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Petersburgh 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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND110ND
2022ND170ND
20230.0820 ppt224ND - 0.480 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
2021-05-27PB0489052721-MIDND
2021-05-27PB0489052721-POSTND
2021-05-27PB0489052721-PREND
2021-08-13410-51384-3ND
2021-08-13410-51384-2ND
2021-08-13410-51384-1ND
2021-09-24PB0489092421 PRE 513ND
2021-09-24PB0489092421 POSTND
2021-10-22410-60482-5ND
2021-11-19PB0489111921PREND
2021-12-10PB0489121021PREND
2022-01-14PB0489011422 PREND
2022-03-25410-77921-1ND
2022-03-25410-77921-2ND
2022-03-25410-77921-3ND
2022-06-0622F0422-02ND
2022-06-0644F0422-03ND
2022-06-0622F0422-09ND
2022-06-0622F0422-01ND
2022-06-0622G0821-02ND
2022-06-24PB0489062422PRE513ND
2022-07-29PB0489072922-POSTND
2022-07-29PB0489072922-PREND
2022-08-26410-96106-6ND
2022-08-26410-96106-2ND
2022-10-29410-103907-5ND
2022-11-15410-106314-3ND
2022-12-22410-110493-5ND
2023-01-12PB0489011223ND
2023-03-30PB048903323 PRE513ND
2023-04-27PB0489042723 MID514ND
2023-04-27PB0489042723 PRE 5130.430 ppt
2023-04-27PB0489033023 MID514ND
2023-05-19PB0489051923-MIDND
2023-05-19PB0489051923-PREND
2023-06-07PB0489060723-PRE0.470 ppt
2023-06-07PB0489060723-MIDND
2023-07-28PB0489072823MIDND
2023-07-28PB0489072823PRE0.430 ppt
2023-08-07PB0489080723MID-2ND
2023-08-07PB0489080723POSTND
2023-08-07PB0489080723PRE0.480 ppt
2023-09-22PB0489092223POST515ND
2023-09-22PB0489092223PRE513ND
2023-09-29PB0489092923POSTND
2023-10-27PB0489102723PRE513ND
2023-10-27PB0489102723POST515ND
2023-11-15410-151526-5-PREND
2023-12-20PB0489122023PREND
2023-12-20PB0489122023POSTND