Perfluorononanoic acid (PFNA)
Middleville
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 | ND | 3 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 10 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 9 | 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 |
|---|---|---|
| 2018-04-26 | GW1804260940GSC | ND |
| 2018-04-26 | GW1804260950GSC | ND |
| 2018-04-26 | GW1804260915GSC | ND |
| 2021-01-20 | 210187601 PFAS TP006 | ND |
| 2021-01-20 | 210187603 PFAS TP005 | ND |
| 2021-01-20 | 210187602 PFAS TP002 | ND |
| 2021-01-20 | ND | |
| 2021-03-03 | ND | |
| 2021-03-03 | 210316801 PFAS TP006 | ND |
| 2021-08-19 | ND | |
| 2021-08-19 | ND | |
| 2021-08-19 | 2108A96-03 | ND |
| 2021-08-19 | 2108A96-01 | ND |
| 2022-08-25 | ND | |
| 2022-08-25 | ND | |
| 2022-08-25 | ND | |
| 2022-08-25 | 2208K34-05 | ND |
| 2022-08-25 | 2208K34-01 | ND |
| 2022-08-25 | 2208K34-03 | ND |
| 2023-02-14 | 101052P | ND |
| 2023-02-14 | 101053P | ND |
| 2023-02-14 | 101054P | ND |
| 2023-08-01 | ND | |
| 2023-08-01 | ND | |
| 2023-08-01 | ND | |
| 2023-08-23 | 106713P | ND |
| 2023-08-23 | 106714P | ND |
| 2023-08-23 | 106715P | ND |