Perfluorononanoic acid (PFNA)
Jblm Mcchord Field
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 | 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 | 18 | 0 | ND |
| 2024 | ND | 1 | 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 |
|---|---|---|
| 2023-03-21 | 4446010 | ND |
| 2023-03-21 | 4446017 | ND |
| 2023-05-18 | 63856701 | ND |
| 2023-05-18 | 63856601 | ND |
| 2023-05-18 | 63857001 | ND |
| 2023-05-18 | 63856901 | ND |
| 2023-06-14 | 4508230 | ND |
| 2023-06-28 | 67013401 | ND |
| 2023-07-19 | 4538486 | ND |
| 2023-09-12 | 4538484 | ND |
| 2023-09-14 | 4538485 | ND |
| 2023-10-23 | 4560639 | ND |
| 2023-11-13 | 68606801 | ND |
| 2023-11-13 | 68607301 | ND |
| 2023-11-13 | 68607201 | ND |
| 2023-11-13 | 68607101 | ND |
| 2023-11-13 | 68607001 | ND |
| 2023-12-05 | 4560638 | ND |
| 2024-04-18 | 68175401 | ND |