Perfluorononanoic acid (PFNA)
Swan Lake Resort
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 | ND | 6 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 8 | 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 |
|---|---|---|
| 2019-01-23 | 4183445 | ND |
| 2019-01-23 | 4183443 | ND |
| 2019-05-09 | 4298558 | ND |
| 2019-05-09 | 4298560 | ND |
| 2019-08-20 | 35492692001 | ND |
| 2019-08-20 | 35492689001 | ND |
| 2020-01-29 | 10507046001 | ND |
| 2020-01-29 | 10507037001 | ND |
| 2020-05-21 | 10519679001 | ND |
| 2020-05-21 | 10519671001 | ND |
| 2020-09-10 | 10532334001 | ND |
| 2020-09-10 | 10532333001 | ND |
| 2020-11-12 | 10540025001 | ND |
| 2020-11-12 | 10540005001 | ND |
| 2021-02-01 | 10547129001 | ND |
| 2021-02-01 | 10547152001 | ND |
| 2022-01-20 | 10595130001 | ND |
| 2022-01-20 | 10595132001 | ND |
| 2022-08-09 | 810-33487-1 | ND |
| 2022-08-09 | 810-33475-1 | ND |
| 2022-10-04 | 810-40336-1 | ND |
| 2022-10-11 | 810-41109-1 | ND |
| 2023-01-04 | 810-49397-1 | ND |
| 2023-01-17 | 810-50599-1 | ND |
| 2023-04-06 | 810-58911-1 | ND |
| 2023-04-06 | 810-58911-3 | ND |
| 2023-07-12 | 810-69390-1 | ND |
| 2023-07-12 | 810-69390-3 | ND |
| 2023-10-05 | 810-80553-1 | ND |
| 2023-10-05 | 810-80553-3 | ND |