Perfluorononanoic acid (PFNA)
Eagleswood Village Mobile Home Park
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 | 2.80 ppt | 4 | 4 | 2.50 ppt - 3.30 ppt |
| 2020 | 2.79 ppt | 4 | 4 | 2.69 ppt - 2.98 ppt |
| 2021 | 3.95 ppt | 4 | 4 | 3.69 ppt - 4.21 ppt |
| 2022 | 3.05 ppt | 4 | 4 | 2.60 ppt - 3.30 ppt |
| 2023 | 1.83 ppt | 4 | 2 | ND - 3.80 ppt |
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 |
|---|---|---|
| 2019-01-21 | 9012505-01 | 3.30 ppt |
| 2019-05-29 | 9053122-01 | 2.60 ppt |
| 2019-09-16 | 9092011-01 | 2.80 ppt |
| 2019-10-07 | 9101107-01 | 2.50 ppt |
| 2020-03-16 | L2012687-01 | 2.98 ppt |
| 2020-05-11 | 0051501-01 | 2.70 ppt |
| 2020-07-07 | 0071002-01 | 2.80 ppt |
| 2020-11-11 | 0111304-01 | 2.69 ppt |
| 2021-03-15 | 1031901-01 | 3.89 ppt |
| 2021-06-21 | 1062513-01 | 3.69 ppt |
| 2021-08-16 | 1082011-01 | 4.21 ppt |
| 2021-10-14 | 21J1511-01 | 4.00 ppt |
| 2022-02-16 | 012202631-0001 | 3.10 ppt |
| 2022-04-12 | 012205849-0001 | 3.20 ppt |
| 2022-07-21 | 012250071-0001 | 3.30 ppt |
| 2022-10-11 | 012251939-0001 | 2.60 ppt |
| 2023-02-27 | 012351605-0001 | 3.50 ppt |
| 2023-04-17 | 012354310-0001 | ND |
| 2023-07-17 | 012359147 | 3.80 ppt |
| 2023-10-12 | 012363466 | ND |