Perfluorononanoic acid (PFNA)
Charlevoix, City of
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 |
|---|---|---|---|---|
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 13 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 7 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-08-30 | SWEF1808301310GGA | ND |
| 2018-08-30 | SWEF1808301310GGA | ND |
| 2018-08-30 | SWIN1808301300GGA | ND |
| 2019-05-02 | SWEF1905020905GGA | ND |
| 2019-05-02 | SWEF1905020905GGA | ND |
| 2019-05-02 | SWIN1905020900GGA | ND |
| 2019-05-31 | SWEF1905311005GGA | ND |
| 2019-05-31 | SWIN1905311000GGA | ND |
| 2019-07-03 | SWEF1907031205GGA | ND |
| 2019-07-03 | SWIN1907031200GGA | ND |
| 2019-07-25 | SWEF1907251220GSC | ND |
| 2019-07-25 | SWIN1907251220GSC | ND |
| 2019-09-06 | SWIN1909060730GSC | ND |
| 2019-09-06 | SWEF1909060735GSC | ND |
| 2019-09-30 | SWIN1909301100GGA | ND |
| 2019-09-30 | SWEF1909301105GGA | ND |
| 2020-10-06 | LJ27595 | ND |
| 2021-01-19 | SWIN2101190800GSC | ND |
| 2021-03-04 | SWIN2103040730GSC | ND |
| 2021-04-21 | ND | |
| 2021-04-21 | LJ52948 | ND |
| 2021-05-25 | SWIN2105250900GSC | ND |
| 2021-07-30 | SWIN2107301230GSC | ND |
| 2021-09-13 | SWIN2109131130GSC | ND |
| 2022-07-11 | ND | |
| 2022-07-11 | LK21403 | ND |
| 2022-10-12 | ND | |
| 2022-10-12 | LK39750 | ND |
| 2023-01-17 | LK51807 | ND |
| 2023-01-17 | ND | |
| 2023-04-25 | ND | |
| 2023-07-11 | ND | |
| 2023-10-17 | ND |