Perfluorononanoic acid (PFNA)
Fremont
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 | ND | 8 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 12 | 0 | ND |
| 2022 | ND | 12 | 0 | ND |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2018-07-11 | GWIN1807111230GGA | ND |
| 2018-07-11 | GWIN1807111340GGA | ND |
| 2018-07-11 | GWIN1807111350GGA | ND |
| 2018-07-11 | GWIN1807111200GGA | ND |
| 2018-07-11 | GWIN1807111310GGA | ND |
| 2018-07-11 | GWIN1807111300GGA | ND |
| 2018-07-11 | GWIN1807111220GGA | ND |
| 2018-07-11 | GWIN1807111210GGA | ND |
| 2020-11-10 | 2011464-03 | ND |
| 2020-11-10 | 2011464-01 | ND |
| 2020-11-10 | 2011464-09 | ND |
| 2020-11-10 | 2011464-05 | ND |
| 2020-11-10 | 2011464-07 | ND |
| 2020-11-10 | 2011464-11 | ND |
| 2021-07-27 | ND | |
| 2021-07-27 | 2107E34-07 | ND |
| 2021-07-27 | 2107E34-11 | ND |
| 2021-07-27 | ND | |
| 2021-07-27 | ND | |
| 2021-07-27 | ND | |
| 2021-07-27 | ND | |
| 2021-07-27 | ND | |
| 2021-07-27 | 2107E34-01 | ND |
| 2021-07-27 | 2107E34-03 | ND |
| 2021-07-27 | 2107E34-05 | ND |
| 2021-07-27 | 2107E34-09 | ND |
| 2022-06-27 | 2206J82-09 | ND |
| 2022-06-27 | 2206J82-11 | ND |
| 2022-06-27 | 2206J82-01 | ND |
| 2022-06-27 | 2206J82-03 | ND |
| 2022-06-27 | 2206J82-07 | ND |
| 2022-06-27 | ND | |
| 2022-06-27 | ND | |
| 2022-06-27 | ND | |
| 2022-06-27 | ND | |
| 2022-06-27 | ND | |
| 2022-07-19 | ND | |
| 2022-07-19 | 2207D72-01 | ND |
| 2023-04-24 | ND | |
| 2023-04-24 | ND | |
| 2023-04-24 | ND | |
| 2023-04-25 | ND | |
| 2023-04-25 | ND | |
| 2023-04-25 | ND |