Perfluorononanoic acid (PFNA)
Stanhope W Department
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 | ND | 12 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 16 | 0 | ND |
| 2022 | ND | 11 | 0 | ND |
| 2023 | ND | 12 | 0 | ND |
| 2024 | 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 |
|---|---|---|
| 2019-03-14 | 4227372 | ND |
| 2019-03-14 | 4227369 | ND |
| 2019-03-14 | 4227355 | ND |
| 2019-06-26 | 4337346 | ND |
| 2019-06-26 | 4337393 | ND |
| 2019-06-26 | 4337391 | ND |
| 2019-09-26 | 4437520 | ND |
| 2019-09-26 | 4437518 | ND |
| 2019-09-26 | 4437516 | ND |
| 2019-11-13 | 4486682 | ND |
| 2019-11-13 | 4486649 | ND |
| 2019-11-13 | 4486656 | ND |
| 2020-02-26 | 4575250 | ND |
| 2020-02-26 | 4575242 | ND |
| 2020-02-26 | 4575247 | ND |
| 2021-03-23 | 4862147 | ND |
| 2021-03-23 | 4862145 | ND |
| 2021-03-23 | 4862143 | ND |
| 2021-03-30 | 4866615 | ND |
| 2021-03-30 | 4866586 | ND |
| 2021-03-30 | 4866593 | ND |
| 2021-06-23 | 4937520 | ND |
| 2021-06-23 | 4937529 | ND |
| 2021-08-19 | 4991971 | ND |
| 2021-08-19 | 4991975 | ND |
| 2021-08-19 | 4991973 | ND |
| 2021-11-04 | 202111050447 | ND |
| 2021-11-04 | 202111050445 | ND |
| 2021-12-15 | 810-10222-1 | ND |
| 2021-12-15 | 810-10230-1 | ND |
| 2021-12-15 | 810-10234-1 | ND |
| 2022-02-09 | 810-14553-1 | ND |
| 2022-02-09 | 810-14542-1 | ND |
| 2022-02-09 | 810-14555-1 | ND |
| 2022-05-25 | 810-25995-1 | ND |
| 2022-06-08 | 810-27143-1 | ND |
| 2022-07-13 | 810-30776-1 | ND |
| 2022-07-13 | 810-30773-1 | ND |
| 2022-07-13 | 810-30774-1 | ND |
| 2022-12-14 | 810-47501-1 | ND |
| 2022-12-14 | 810-47503-1 | ND |
| 2022-12-14 | 810-47504-1 | ND |
| 2023-03-08 | 810-56042-1 | ND |
| 2023-03-08 | 810-56044-1 | ND |
| 2023-03-08 | 810-56043-1 | ND |
| 2023-06-13 | 810-66147-1 | ND |
| 2023-06-13 | 810-66150-1 | ND |
| 2023-06-13 | 810-66148-1 | ND |
| 2023-08-23 | 810-75110-1 | ND |
| 2023-08-23 | 810-75116-1 | ND |
| 2023-08-23 | 810-75110-3 | ND |
| 2023-12-13 | 810-88119-1 | ND |
| 2023-12-13 | 810-88119-5 | ND |
| 2023-12-13 | 810-88119-3 | ND |
| 2024-03-18 | 114640P | ND |
| 2024-03-18 | 114641P | ND |
| 2024-03-18 | 114642P | ND |