Perfluorononanoic acid (PFNA)
Meridian Water Department
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 |
|---|---|---|---|---|
| 2014 | ND | 36 | 0 | ND |
| 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 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-03-04 | 1403137-001F | ND |
| 2014-03-04 | 1403135-001F | ND |
| 2014-03-04 | 1403136-001F | ND |
| 2014-03-04 | 1403154-001F | ND |
| 2014-03-04 | 1403132-001F | ND |
| 2014-03-04 | 1403134-001F | ND |
| 2014-03-04 | 1403133-001F | ND |
| 2014-03-05 | 1403157-001F | ND |
| 2014-03-05 | 1403160-001F | ND |
| 2014-03-05 | 1403158-001F | ND |
| 2014-03-05 | 1403155-001F | ND |
| 2014-03-05 | 1403159-001F | ND |
| 2014-03-05 | 1403156-001F | ND |
| 2014-03-06 | 1403214-001F | ND |
| 2014-03-06 | 1403213-001F | ND |
| 2014-03-06 | 1403212-001F | ND |
| 2014-03-06 | 1403211-001F | ND |
| 2014-04-08 | 1404324-001F | ND |
| 2014-09-03 | 1409115-001F | ND |
| 2014-09-03 | 1409118-001F | ND |
| 2014-09-03 | 1409116-001F | ND |
| 2014-09-03 | 1409117-001F | ND |
| 2014-09-03 | 1409114-001F | ND |
| 2014-09-04 | 1409163-001F | ND |
| 2014-09-04 | 1409164-001F | ND |
| 2014-09-08 | 1409268-001F | ND |
| 2014-09-08 | 1409267-001F | ND |
| 2014-09-08 | 1409269-001F | ND |
| 2014-09-08 | 1409265-001F | ND |
| 2014-09-08 | 1409266-001F | ND |
| 2014-09-09 | 1409319-001F | ND |
| 2014-09-09 | 1409316-001F | ND |
| 2014-09-09 | 1409317-001F | ND |
| 2014-09-09 | 1409315-001F | ND |
| 2014-09-09 | 1409318-001F | ND |
| 2014-09-25 | 1409A15-001A | ND |