Perfluorononanoic acid (PFNA)
Oldmans Creek Campgroun
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 | 4 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 4 | 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 |
|---|---|---|
| 2019-01-17 | 4177843 | ND |
| 2019-04-24 | 4277184 | ND |
| 2019-08-19 | 35492684001 | ND |
| 2019-10-23 | 35507701001 | ND |
| 2020-01-27 | 10506844001 | ND |
| 2021-02-19 | 10548461001 | ND |
| 2021-08-04 | 10573436001 | ND |
| 2021-11-15 | 10587727001 | ND |
| 2022-01-17 | 10594670001 | ND |
| 2022-04-18 | 10604993001 | ND |
| 2022-09-26 | 10627221001 | ND |
| 2022-11-02 | 10632253001 | ND |
| 2023-05-05 | 10652187001 | ND |
| 2023-09-25 | 10669949001 | ND |