Perfluorononanoic acid (PFNA)
Brielle 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 | ND | 1 | 0 | ND |
| 2014 | ND | 3 | 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 | 0.113 ppt | 8 | 1 | ND - 0.900 ppt |
| 2020 | 1.24 ppt | 8 | 4 | ND - 2.70 ppt |
| 2021 | 1.05 ppt | 2 | 1 | ND - 2.10 ppt |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 6 | 0 | ND |
| 2024 | ND | 4 | 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 |
|---|---|---|
| 2019-04-09 | 9041014-01 | ND |
| 2019-04-09 | 9041012-01 | 0.900 ppt |
| 2019-06-05 | 9060608-01 | ND |
| 2019-06-24 | 9062516-01 | ND |
| 2019-08-14 | 70101499001 | ND |
| 2019-08-14 | 70101501001 | ND |
| 2019-10-29 | 70110245001 | ND |
| 2019-10-29 | 70110235001 | ND |
| 2020-02-11 | 70121497001 | 2.30 ppt |
| 2020-02-18 | 70122449001 | 2.30 ppt |
| 2020-04-08 | 70127584001 | 2.70 ppt |
| 2020-04-08 | 70127584005 | 2.60 ppt |
| 2020-07-08 | 70137743001 | ND |
| 2020-07-08 | 70137743005 | ND |
| 2020-10-27 | 70151230005 | ND |
| 2020-10-27 | 70151230001 | ND |
| 2021-10-19 | 70191737001 | 2.10 ppt |
| 2021-10-19 | 70191737004 | ND |
| 2022-10-18 | L2258182-01 | ND |
| 2022-10-18 | L2258182-03 | ND |
| 2023-03-27 | 102315P | ND |
| 2023-03-27 | 102316P | ND |
| 2023-09-13 | 107962P | ND |
| 2023-09-13 | 107963P | ND |
| 2023-10-18 | L2362231-01 | ND |
| 2023-10-18 | L2362231-03 | ND |
| 2024-01-24 | 112159P | ND |
| 2024-01-24 | 112160P | ND |
| 2024-04-22 | 115639P | ND |
| 2024-04-22 | 115640P | ND |