Perfluorononanoic acid (PFNA)
NJ Water Supply Authority Manasquan
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 | ND | 1 | 0 | ND |
| 2014 | ND | 3 | 0 | ND |
| 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 | 1.33 ppt | 4 | 2 | ND - 3.10 ppt |
| 2020 | 2.45 ppt | 4 | 4 | 2.00 ppt - 3.20 ppt |
| 2021 | ND | 2 | 0 | ND |
| 2022 | 2.00 ppt | 1 | 1 | 2.00 ppt |
| 2023 | 2.40 ppt | 1 | 1 | 2.40 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 | Lab ID | Result |
|---|---|---|
| 2013-12-03 | K1313367-001 | ND |
| 2014-03-04 | K1402322-001 | ND |
| 2014-06-03 | K1405716-001 | ND |
| 2014-09-02 | K1409419-001 | ND |
| 2019-02-06 | 4190949 | 2.20 ppt |
| 2019-05-08 | 4287251 | 3.10 ppt |
| 2019-08-06 | 4381060 | ND |
| 2019-11-06 | 4478794 | ND |
| 2020-02-04 | 4556420 | 2.30 ppt |
| 2020-05-05 | 4621166 | 3.20 ppt |
| 2020-08-05 | 4690893 | 2.30 ppt |
| 2020-11-10 | 4773199 | 2.00 ppt |
| 2021-02-02 | 4828501 | ND |
| 2021-05-04 | 4893865 | ND |
| 2022-04-12 | 810-20763-1 | 2.00 ppt |
| 2023-04-26 | 810-61017-2 | 2.40 ppt |