Perfluorononanoic acid (PFNA)
Grosse Pointe Farms
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 | ND | 3 | 0 | ND |
| 2019 | ND | 13 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 7 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
| 2024 | ND | 3 | 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 |
|---|---|---|
| 2018-07-17 | SWEF1807171020GSC | ND |
| 2018-07-17 | SWEF1807171020GSC | ND |
| 2018-07-17 | SWIN1807171015GSC | ND |
| 2019-04-30 | SWIN1904301400GSC | ND |
| 2019-04-30 | SWEF1904301405GSC | ND |
| 2019-04-30 | SWEF1904301405GSC | ND |
| 2019-05-30 | SWIN1905300850MK | ND |
| 2019-05-30 | SWEF1905300855MK | ND |
| 2019-06-28 | SWEF1906280750GSC | ND |
| 2019-06-28 | SWIN1906280740GSC | ND |
| 2019-07-30 | SWEF1907300820MK | ND |
| 2019-07-30 | SWIN1907300815MK | ND |
| 2019-08-27 | SWEF1908271200GSC | ND |
| 2019-08-27 | SWIN1908271155GSC | ND |
| 2019-09-24 | SWIN1909241200GSC | ND |
| 2019-09-24 | SWEF1909241205GSC | ND |
| 2020-10-07 | 3649740002 | ND |
| 2021-01-21 | SWIN2101211300RG | ND |
| 2021-02-17 | 3675770001 | ND |
| 2021-02-17 | ND | |
| 2021-03-08 | SWIN2103081415SK | ND |
| 2021-05-12 | SWIN2105121125GSC | ND |
| 2021-07-13 | SWIN2107131400GGA | ND |
| 2021-09-14 | SWIN2109141330GGA | ND |
| 2022-03-22 | 3764280001 | ND |
| 2022-03-22 | ND | |
| 2023-01-18 | ND | |
| 2023-01-18 | 3832000001 | ND |
| 2024-01-16 | 112015P | ND |
| 2024-04-16 | 115513P | ND |
| 2024-07-16 | 118646P | ND |