Perfluorononanoic acid (PFNA)
Munford Water Authority Inc.
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 | N/A | 0 | 0 | N/A |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2020-02-11 | 2002-00187-001 | ND |
| 2020-02-11 | 2002-00187-002 | ND |
| 2020-07-14 | 2007-00240-001 | ND |
| 2020-07-14 | 2007-00240-002 | ND |
| 2022-08-09 | 2208-00204-001 | ND |
| 2022-11-17 | 2211-00380-001 | ND |
| 2023-01-10 | 2301-00147-001 | ND |
| 2023-05-17 | 2305-00387-001 | ND |
| 2023-07-11 | 2307-00225-001 | ND |
| 2023-11-13 | 2311-00286-001 | ND |