Perfluorononanoic acid (PFNA)
Pawc Pocono District
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 | ND | 18 | 0 | ND |
| 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 | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2013-06-03 | 22237101 | ND |
| 2013-06-03 | 22236901 | ND |
| 2013-06-03 | 22232501 | ND |
| 2013-06-03 | 22231701 | ND |
| 2013-06-04 | 22232301 | ND |
| 2013-06-04 | 22232101 | ND |
| 2013-06-04 | 22236701 | ND |
| 2013-06-04 | 22231901 | ND |
| 2013-06-04 | 22230601 | ND |
| 2013-12-02 | 24114001 | ND |
| 2013-12-02 | 24114801 | ND |
| 2013-12-02 | 24115001 | ND |
| 2013-12-02 | 24115401 | ND |
| 2013-12-02 | 24115201 | ND |
| 2013-12-03 | 24114201 | ND |
| 2013-12-03 | 24112901 | ND |
| 2013-12-03 | 24114601 | ND |
| 2013-12-03 | 24114401 | ND |
| 2020-09-24 | ND |