Perfluorononanoic acid (PFNA)
Gettysburg Municipal Authority
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 |
|---|---|---|---|---|
| 2015 | ND | 16 | 0 | ND |
| 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 | 2 | 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 |
|---|---|---|
| 2015-03-10 | K1502717-005 | ND |
| 2015-03-10 | K1502717-001 | ND |
| 2015-03-10 | K1502717-007 | ND |
| 2015-03-10 | K1502717-003 | ND |
| 2015-03-12 | K1502799-003 | ND |
| 2015-03-12 | K1502799-001 | ND |
| 2015-03-18 | K1503015-001 | ND |
| 2015-06-16 | K1506682-001 | ND |
| 2015-09-14 | K1510408-001 | ND |
| 2015-09-14 | K1510414-001 | ND |
| 2015-09-15 | K1510413-001 | ND |
| 2015-09-15 | K1510412-001 | ND |
| 2015-09-21 | K1510866-001 | ND |
| 2015-09-21 | K1510867-001 | ND |
| 2015-09-22 | K1510868-001 | ND |
| 2015-12-08 | K1514287-001 | ND |
| 2020-11-12 | ND | |
| 2020-11-12 | ND |