Perfluorononanoic acid (PFNA)
Wedowee Water, Sewer, & Gas Board
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 | N/A | 0 | 0 | N/A |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2020-02-19 | C0B2560-01 | ND |
| 2020-04-15 | C0D2337-01 | ND |
| 2020-09-23 | 209090-01 | ND |
| 2020-10-21 | C0J3080-01 | ND |
| 2022-09-07 | 307958-01 | ND |
| 2022-11-16 | 35760846 | ND |
| 2023-03-22 | 316006-35788064 | ND |
| 2023-06-07 | 318024-35805354 | ND |
| 2023-08-02 | 320608-23080386 | ND |
| 2023-11-15 | 324789-23111404 | ND |