Perfluorononanoic acid (PFNA)
Bedford Consolidated Water 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 | 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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2021-04-19 | 21D0841-1-PFAS | ND |
| 2021-04-21 | 21D0951-PFAS | ND |
| 2021-04-27 | 21D1226-02-PFAS | ND |
| 2021-08-25 | 21H1285-04-PFAS | ND |
| 2021-08-25 | 21H1285-05-PFAS | ND |
| 2021-08-25 | 21H1285-06-PFAS | ND |
| 2021-10-22 | 21J1104-03-PFAS | ND |
| 2021-10-22 | 21J1104-04-PFAS | ND |
| 2021-10-28 | 21J1290-01-PFAS | ND |
| 2022-01-19 | 22A0816-01-PFAS | ND |
| 2022-08-24 | 22H1509-03-PFAS | ND |
| 2022-08-24 | 22H1509-04-PFAS | ND |
| 2023-08-23 | 23H1893-02-PFAS | ND |
| 2023-08-23 | 23H1893-PFAS | ND |
| 2023-08-23 | 23H1893-03-PFAS | ND |