Perfluorononanoic acid (PFNA)
Glencoe Water Works Board
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 6 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2020-02-17 | 2002-00307-001 | ND |
| 2020-02-17 | 2002-00307-002 | ND |
| 2020-02-17 | 2002-00307-003 | ND |
| 2020-09-15 | 2009-00296-001 | ND |
| 2020-09-15 | 2009-00296-002 | ND |
| 2020-09-15 | 2009-00296-003 | ND |
| 2022-08-23 | 2208-00462-001 | ND |
| 2022-12-13 | 2212-00263-001 | ND |
| 2023-01-30 | 2301-00502-001 | ND |
| 2023-04-06 | 2304-00122-001 | ND |
| 2023-09-11 | 2309-00174-001 | ND |
| 2023-12-06 | 2312-00158-001 | ND |
| 2024-05-07 | 116226P | ND |
| 2024-05-07 | 116227P | ND |
| 2024-05-07 | 116228P | ND |