Perfluorononanoic acid (PFNA)
China Lake Naval Air Weapons Station
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 | ND | 5 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 7 | 0 | ND |
| 2024 | ND | 6 | 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 |
|---|---|---|
| 2020-11-17 | CA1510703_004_004-202011171005 | ND |
| 2020-11-17 | CA1510703_DST_901-202011171040 | ND |
| 2020-11-17 | CA1510703_013_013-202011170928 | ND |
| 2020-11-17 | CA1510703_017_017-202011171115 | ND |
| 2020-11-17 | CA1510703_002_002-202011171245 | ND |
| 2023-08-03 | CA1510703_002_002-202308030741 | ND |
| 2023-08-03 | CA1510703_013_013-202308030840 | ND |
| 2023-08-03 | CA1510703_004_004-202308031001 | ND |
| 2023-08-03 | CA1510703_DST_901-202308031031 | ND |
| 2023-08-03 | CA1510703_015_015-202308030911 | ND |
| 2023-08-03 | CA1510703_DST_901-202308031131 | ND |
| 2023-08-03 | CA1510703_017_017-202308030936 | ND |
| 2024-05-21 | 116277P | ND |
| 2024-05-21 | 116278P | ND |
| 2024-05-21 | 116279P | ND |
| 2024-05-21 | 116280P | ND |
| 2024-05-21 | 116281P | ND |
| 2024-05-21 | 116282P | ND |