Perfluorononanoic acid (PFNA)
Summit Water & Supply Company
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 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 | 6 | 0 | ND |
| 2023 | ND | 14 | 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 |
|---|---|---|
| 2022-03-15 | 4266204 | ND |
| 2022-03-15 | 4266199 | ND |
| 2022-03-15 | 4266203 | ND |
| 2022-03-15 | 4266202 | ND |
| 2022-03-15 | 4266182 | ND |
| 2022-03-15 | 4266189 | ND |
| 2023-05-30 | 4562796 | ND |
| 2023-05-30 | 4562797 | ND |
| 2023-05-30 | 4562800 | ND |
| 2023-05-30 | 4562801 | ND |
| 2023-05-30 | 4562799 | ND |
| 2023-05-30 | 4562798 | ND |
| 2023-05-30 | 4562802 | ND |
| 2023-11-27 | 380-72715-1 | ND |
| 2023-11-27 | 380-72715-2 | ND |
| 2023-11-27 | 380-72715-3 | ND |
| 2023-11-27 | 380-72715-4 | ND |
| 2023-11-27 | 380-72715-5 | ND |
| 2023-11-27 | 380-72715-6 | ND |
| 2023-11-27 | 380-72715-7 | ND |