Perfluorononanoic acid (PFNA)
Firgrove Mutual Inc
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 | 19 | 0 | ND |
| 2023 | ND | 14 | 0 | ND |
| 2024 | ND | 1 | 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 |
|---|---|---|
| 2022-02-09 | 4255311 | ND |
| 2022-02-09 | 4255318 | ND |
| 2022-02-09 | 4255313 | ND |
| 2022-02-09 | 4255313 | ND |
| 2022-02-09 | 4255273 | ND |
| 2022-02-09 | 4255325 | ND |
| 2022-02-09 | 4255266 | ND |
| 2022-02-09 | 4255323 | ND |
| 2022-02-09 | 4255303 | ND |
| 2022-02-09 | 4255259 | ND |
| 2022-02-09 | 4255322 | ND |
| 2022-04-20 | 4279649 | ND |
| 2022-07-14 | 4335592 | ND |
| 2022-07-14 | 4335587 | ND |
| 2022-07-14 | 4335588 | ND |
| 2022-07-14 | 4335589 | ND |
| 2022-07-14 | 4335590 | ND |
| 2022-07-14 | 4335591 | ND |
| 2022-07-14 | 4335587 | ND |
| 2023-01-23 | 4555749 | ND |
| 2023-01-24 | 380-35455-1 | ND |
| 2023-01-24 | 380-35455-2 | ND |
| 2023-01-24 | 380-35455-3 | ND |
| 2023-01-25 | 380-35583-3 | ND |
| 2023-01-25 | 380-35583-1 | ND |
| 2023-01-25 | 380-35583-2 | ND |
| 2023-02-13 | 380-37731-1 | ND |
| 2023-04-17 | 380-44157-1 | ND |
| 2023-07-10 | 4549176 | ND |
| 2023-07-10 | 4549175 | ND |
| 2023-09-20 | 380-63945-1 | ND |
| 2023-09-20 | 380-63943-1 | ND |
| 2023-10-11 | 380-66923-1 | ND |
| 2024-01-30 | 380-81075-1 | ND |