Perfluorononanoic acid (PFNA)
Lexington, Village of
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 | ND | 4 | 0 | ND |
| 2019 | ND | 13 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-10-17 | GWNT1810171545GGA | ND |
| 2018-10-17 | SWEF1810171530GGA | ND |
| 2018-10-17 | SWEF1810171530GGA | ND |
| 2018-10-17 | SWIN1810171500GGA | ND |
| 2019-05-03 | SWIN1905031200GGA | ND |
| 2019-05-03 | SWEF1905031205GGA | ND |
| 2019-05-03 | SWEF1905031205GGA | ND |
| 2019-05-30 | SWEF1905301255GSC | ND |
| 2019-05-30 | SWIN1905301250GSC | ND |
| 2019-06-26 | SWEF1906261245GSC | ND |
| 2019-06-26 | SWIN1906261240GSC | ND |
| 2019-08-01 | SWEF1908011615MK | ND |
| 2019-08-01 | SWIN1908011610MK | ND |
| 2019-08-28 | SWEF1908291005GSC | ND |
| 2019-08-28 | SWIN1908291000GSC | ND |
| 2019-09-26 | SWIN1909260900GSC | ND |
| 2019-09-26 | SWEF1909260905GSC | ND |
| 2020-12-11 | LJ37295 PFAS | ND |
| 2020-12-11 | LJ37296 PFAS | ND |
| 2021-01-26 | SWIN2101261500RG | ND |
| 2021-03-10 | SWMP2103101210SK | ND |
| 2021-03-18 | LJ48236 PFAS | ND |
| 2021-03-18 | ND | |
| 2021-03-18 | ND | |
| 2021-03-18 | LJ48237 PFAS | ND |
| 2021-05-13 | SWIN2105131115GSC | ND |
| 2021-07-15 | SWIN2107151200GGA | ND |
| 2021-09-16 | SWIN2109161130GGA | ND |
| 2022-06-17 | LK17487 | ND |
| 2022-06-17 | LK17486 | ND |
| 2022-06-17 | ND | |
| 2022-06-17 | ND | |
| 2023-06-27 | ND | |
| 2023-06-27 | ND |