Perfluorononanoic acid (PFNA)
Lanesborough Fire and Water District
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 | 0.0620 ppt | 9 | 1 | ND - 0.560 ppt |
| 2022 | ND | 19 | 0 | ND |
| 2023 | 0.118 ppt | 8 | 2 | ND - 0.480 ppt |
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 | Result |
|---|---|
| 2020-12-10 | ND |
| 2020-12-10 | ND |
| 2020-12-18 | ND |
| 2020-12-18 | ND |
| 2021-02-16 | ND |
| 2021-02-16 | ND |
| 2021-04-20 | ND |
| 2021-04-20 | ND |
| 2021-10-18 | ND |
| 2021-10-18 | ND |
| 2021-11-15 | 0.560 ppt |
| 2021-12-13 | ND |
| 2021-12-13 | ND |
| 2022-01-24 | ND |
| 2022-01-24 | ND |
| 2022-02-14 | ND |
| 2022-02-14 | ND |
| 2022-03-14 | ND |
| 2022-03-14 | ND |
| 2022-04-18 | ND |
| 2022-04-18 | ND |
| 2022-05-16 | ND |
| 2022-05-16 | ND |
| 2022-06-20 | ND |
| 2022-07-18 | ND |
| 2022-07-18 | ND |
| 2022-08-15 | ND |
| 2022-08-15 | ND |
| 2022-09-19 | ND |
| 2022-09-19 | ND |
| 2022-10-17 | ND |
| 2022-10-17 | ND |
| 2023-01-23 | ND |
| 2023-01-23 | ND |
| 2023-04-17 | ND |
| 2023-04-17 | ND |
| 2023-07-17 | ND |
| 2023-07-17 | 0.480 ppt |
| 2023-10-16 | 0.460 ppt |
| 2023-10-16 | ND |