Perfluorononanoic acid (PFNA)
City of Pineville Water System
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 |
|---|---|---|---|---|
| 2014 | ND | 18 | 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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 7 | 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 |
|---|---|---|
| 2014-02-20 | 35127324003AM | ND |
| 2014-02-20 | 35127324007AM | ND |
| 2014-02-20 | 35127324005AM | ND |
| 2014-02-20 | 35127324011AM | ND |
| 2014-02-20 | 35127324013AM | ND |
| 2014-02-20 | 35127324001AM | ND |
| 2014-02-20 | 35127324015AM | ND |
| 2014-02-20 | 35127324009AM | ND |
| 2014-02-20 | 35127324017AM | ND |
| 2014-08-05 | 35149111009AM | ND |
| 2014-08-05 | 35149111003AM | ND |
| 2014-08-05 | 35149111001AM | ND |
| 2014-08-05 | 35149111005AM | ND |
| 2014-08-05 | 35149111015AM | ND |
| 2014-08-05 | 35149111013AM | ND |
| 2014-08-05 | 35149111017AM | ND |
| 2014-08-05 | 35149111007AM | ND |
| 2014-08-05 | 35149111011AM | ND |
| 2023-07-19 | 35814590003 | ND |
| 2023-07-19 | 35814587011 | ND |
| 2023-07-19 | 35814587007 | ND |
| 2023-07-19 | 35814587003 | ND |
| 2023-08-10 | 35819880003 | ND |
| 2023-08-10 | 35819880011 | ND |
| 2023-08-10 | 35819880007 | ND |