Perfluorononanoic acid (PFNA)
Minnetonka
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 10 | 0 | ND |
| 2022 | ND | 9 | 0 | ND |
| 2023 | ND | 5 | 0 | ND |
| 2024 | ND | 7 | 0 | ND |
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 |
|---|---|---|
| 2021-06-24 | 21F1556-02 | ND |
| 2021-06-24 | 21F1556-03 | ND |
| 2021-06-24 | 21F1556-04 | ND |
| 2021-06-24 | 21F1556-05 | ND |
| 2021-06-24 | 21F1556-06 | ND |
| 2021-06-24 | 21F1556-07 | ND |
| 2021-06-24 | 21F1556-08 | ND |
| 2021-06-24 | 21F1556-09 | ND |
| 2021-06-24 | 21F1556-10 | ND |
| 2021-06-24 | 21F1556-01 | ND |
| 2022-06-02 | 22F0212-07 | ND |
| 2022-06-02 | 22F0212-09 | ND |
| 2022-06-02 | 22F0212-08 | ND |
| 2022-06-02 | 22F0212-06 | ND |
| 2022-06-02 | 22F0212-04 | ND |
| 2022-06-02 | 22F0212-03 | ND |
| 2022-06-02 | 22F0212-01 | ND |
| 2022-06-02 | 22F0212-05 | ND |
| 2022-09-08 | 22I0503-01 | ND |
| 2023-08-01 | 32302633-7 | ND |
| 2023-08-01 | 32302633-9 | ND |
| 2023-08-01 | 32302633-5 | ND |
| 2023-08-01 | 32302633-3 | ND |
| 2023-08-01 | 32302633-1 | ND |
| 2024-02-14 | 32400433001 | ND |
| 2024-02-14 | 32400433007 | ND |
| 2024-02-14 | 32400433009 | ND |
| 2024-02-14 | 32400433011 | ND |
| 2024-02-14 | 32400433003 | ND |
| 2024-02-14 | 32400433005 | ND |
| 2024-02-14 | 32400433013 | ND |