Perfluorononanoic acid (PFNA)
Fawn Lake Village
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 8 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2019-03-12 | 4224899 | ND |
| 2019-03-12 | 4224900 | ND |
| 2019-06-13 | L1925913-01 | ND |
| 2019-06-13 | L1925913-03 | ND |
| 2019-09-19 | L1943499-01 | ND |
| 2019-09-19 | L1943498-01 | ND |
| 2019-12-24 | L1961639-01 | ND |
| 2019-12-24 | L1961640-01 | ND |
| 2020-03-18 | L2012315-01 | ND |
| 2020-03-18 | L2012316-01 | ND |
| 2021-09-23 | L2151920-01 | ND |
| 2021-09-23 | L2151923-01 | ND |
| 2022-09-21 | L2252387-01 | ND |
| 2022-09-21 | L2252388-01 | ND |
| 2023-09-14 | 810-78493-1 | ND |
| 2023-09-14 | 810-78494-1 | ND |