Perfluorononanoic acid (PFNA)
Bennettsville, City of
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 | 8 | 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 | 0.278 ppt | 9 | 1 | ND - 2.50 ppt |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-02-24 | 201402270242AM | ND |
| 2014-02-24 | 201402260672AM | ND |
| 2014-02-24 | 201402260641AM | ND |
| 2014-05-27 | 201405290478AM | ND |
| 2014-08-25 | 201408270759AM | ND |
| 2014-08-25 | 201408270813AM | ND |
| 2014-08-26 | 201408270787AM | ND |
| 2014-11-24 | 201411260263AM | ND |
| 2020-06-09 | ND | |
| 2020-10-20 | ND | |
| 2020-10-20 | ND | |
| 2020-10-20 | 2.50 ppt | |
| 2020-10-20 | ND | |
| 2020-10-20 | ND | |
| 2020-10-20 | ND | |
| 2020-10-20 | ND | |
| 2020-10-20 | ND |