Perfluorononanoic acid (PFNA)
City of Bogalusa 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 | 12 | 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 | 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 |
|---|---|---|
| 2014-04-21 | 35134976013AM | ND |
| 2014-04-21 | 35134976009AM | ND |
| 2014-04-21 | 35134976019AM | ND |
| 2014-04-21 | 35134976017AM | ND |
| 2014-04-21 | 35134976005AM | ND |
| 2014-04-21 | 35134976001AM | ND |
| 2014-10-20 | 35160206013AM | ND |
| 2014-10-20 | 35160206009AM | ND |
| 2014-10-20 | 35160206021AM | ND |
| 2014-10-20 | 35160206017AM | ND |
| 2014-10-20 | 35160206001AM | ND |
| 2014-10-20 | 35160206005AM | ND |