Perfluorononanoic acid (PFNA)
Coon Rapids
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 |
|---|---|---|---|---|
| 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 | N/A | 0 | 0 | N/A |
| 2022 | ND | 3 | 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 |
|---|---|---|
| 2022-01-03 | 22A0171-01 | ND |
| 2022-01-03 | 22A0171-02 | ND |
| 2022-01-03 | 22A0171-03 | ND |
| 2023-10-16 | 32303558-1 | ND |
| 2023-10-16 | 32303558-3 | ND |
| 2023-10-16 | 32303558-5 | ND |
| 2023-10-16 | 32303558-7 | ND |
| 2023-10-16 | 32303558-9 | ND |
| 2024-04-17 | 32401111001 | ND |
| 2024-04-17 | 32401111003 | ND |
| 2024-04-17 | 32401111005 | ND |
| 2024-04-17 | 32401111013 | ND |
| 2024-04-17 | 32401111007 | ND |
| 2024-04-17 | 32401111009 | ND |
| 2024-04-17 | 32401111011 | ND |