Perfluorononanoic acid (PFNA)
Northport Cottage Owners
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 | 3 | 0 | ND |
| 2019 | ND | 13 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 11 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2018-11-07 | SWEF1811071430GGA | ND |
| 2018-11-07 | SWEF1811071430GGA | ND |
| 2018-11-07 | SWIN1811071400GGA | ND |
| 2019-05-03 | SWIN1905030840GSC | ND |
| 2019-05-03 | SWEF1905030850GSC | ND |
| 2019-05-03 | SWEF1905030850GSC | ND |
| 2019-05-30 | SWIN1905301600GGA | ND |
| 2019-05-30 | SWEF1905301605GGA | ND |
| 2019-07-02 | SWEF1907021505GSC | ND |
| 2019-07-02 | SWIN1907021500GSC | ND |
| 2019-07-25 | SWEF1907250905GSC | ND |
| 2019-07-25 | SWIN1907250900GSC | ND |
| 2019-09-06 | SWEF1909061205GSC | ND |
| 2019-09-06 | SWIN1909061200GSC | ND |
| 2019-09-23 | SWEF1909231455KME | ND |
| 2019-09-23 | SWIN1909231505KME | ND |
| 2020-12-15 | 20121554 | ND |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | ND | |
| 2020-12-15 | 20121554-03 | ND |
| 2020-12-15 | 20121554-04 | ND |
| 2021-01-18 | SWIN2101181300GSC | ND |
| 2021-03-03 | SWIN2103031200GSC | ND |
| 2021-05-24 | SWIN2105241350GSC | ND |
| 2021-07-21 | SWIN2107211130GGA | ND |
| 2021-09-09 | SWIN2109090930GSC | ND |
| 2021-09-23 | 21092617-01 | ND |
| 2021-09-23 | ND | |
| 2021-09-28 | ND | |
| 2021-09-28 | ND | |
| 2021-09-28 | 21092878-01 | ND |
| 2021-09-28 | 21092878-02 | ND |
| 2022-08-30 | 22083102-03 | ND |
| 2022-08-30 | 22083102-05 | ND |
| 2022-08-30 | 22083102-01 | ND |
| 2022-08-30 | ND | |
| 2022-08-30 | ND | |
| 2022-08-30 | ND | |
| 2023-09-27 | ND | |
| 2023-09-27 | ND | |
| 2023-09-27 | ND |