Perfluorononanoic acid (PFNA)
Newfield 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 |
|---|---|---|---|---|
| 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 | ND | 8 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2019-03-11 | 4223668 | ND |
| 2019-03-11 | 4223670 | ND |
| 2019-06-05 | L1924264-01 | ND |
| 2019-06-05 | L1924265-01 | ND |
| 2019-08-13 | L1936555-01 | ND |
| 2019-08-13 | L1936555-03 | ND |
| 2019-11-25 | L1957197-01 | ND |
| 2019-11-25 | L1957198-01 | ND |
| 2020-03-17 | L2012248-01 | ND |
| 2020-03-17 | L2012249-01 | ND |
| 2021-03-03 | L2110714-01 | ND |
| 2021-03-03 | L2110715-01 | ND |
| 2022-03-24 | L2215525-01 | ND |
| 2022-03-24 | L2215729-01 | ND |
| 2023-03-08 | 810-55928-1 | ND |
| 2023-03-08 | 810-55929-1 | ND |