Perfluorononanoic acid (PFNA)
Rolling Hills Care Center
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 0.228 ppt | 4 | 1 | ND - 0.910 ppt |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2019-03-28 | L7114438-1 | 0.910 ppt |
| 2019-05-23 | L7110199-1 | ND |
| 2019-07-23 | L7132866-1 | ND |
| 2019-11-18 | L7174168-1 | ND |
| 2020-01-30 | L7186160-1 | ND |
| 2020-04-10 | L7195470-1 | ND |
| 2020-07-24 | 630-3725-1 | ND |
| 2020-11-09 | 630-9844-1 | ND |
| 2021-01-20 | 630-12616-1 | ND |
| 2021-05-11 | 630-17156-1 | ND |
| 2021-08-11 | 630-20591-1 | ND |
| 2021-10-26 | 630-23592-1 | ND |
| 2022-01-27 | 630-26683-1 | ND |
| 2022-06-17 | 630-36767-1 | ND |
| 2022-09-28 | 630-46369-1 | ND |
| 2022-10-26 | 630-48397-1 | ND |
| 2023-02-08 | 630-55160-1 | ND |
| 2023-06-13 | 630-63578-1 | ND |
| 2023-09-25 | 630-72639-1 | ND |
| 2023-12-06 | 630-76952-1 | ND |