Perfluorononanoic acid (PFNA)
Newberry System
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 | ND | 21 | 0 | ND |
| 2021 | ND | 23 | 0 | ND |
| 2022 | ND | 18 | 0 | ND |
| 2023 | 0.255 ppt | 29 | 3 | ND - 2.60 ppt |
| 2024 | ND | 10 | 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 |
|---|---|---|
| 2020-01-15 | 21641380.00 | ND |
| 2020-01-15 | 21641386.00 | ND |
| 2020-02-27 | 21993732.00 | ND |
| 2020-04-23 | 22184253.00 | ND |
| 2020-04-23 | 22184247.00 | ND |
| 2020-05-19 | 22383677.00 | ND |
| 2020-05-19 | 22383683.00 | ND |
| 2020-05-19 | 22383689.00 | ND |
| 2020-05-19 | 22383695.00 | ND |
| 2020-06-24 | 22579321.00 | ND |
| 2020-06-24 | 22579327.00 | ND |
| 2020-06-24 | 22579333.00 | ND |
| 2020-06-24 | 22579339.00 | ND |
| 2020-07-22 | 22769020.00 | ND |
| 2020-07-22 | 22769026.00 | ND |
| 2020-09-10 | 23155188.00 | ND |
| 2020-09-10 | 23155194.00 | ND |
| 2020-11-18 | 23684980.00 | ND |
| 2020-11-18 | 23684994.00 | ND |
| 2020-12-16 | 23685450.00 | ND |
| 2020-12-16 | 23685464.00 | ND |
| 2021-01-21 | 23862358.00 | ND |
| 2021-01-21 | 23862302.00 | ND |
| 2021-02-16 | 24030402.00 | ND |
| 2021-02-16 | 24030458.00 | ND |
| 2021-03-11 | 24217331.00 | ND |
| 2021-03-11 | 24217387.00 | ND |
| 2021-04-22 | 24407072.00 | ND |
| 2021-04-22 | 24407002.00 | ND |
| 2021-05-13 | 24609456.00 | ND |
| 2021-05-13 | 24609512.00 | ND |
| 2021-06-17 | 24801377.00 | ND |
| 2021-06-17 | 24801321.00 | ND |
| 2021-07-13 | 24992143.00 | ND |
| 2021-07-13 | 24992199.00 | ND |
| 2021-08-12 | 25192261.00 | ND |
| 2021-08-12 | 25192205.00 | ND |
| 2021-09-21 | 25377787.00 | ND |
| 2021-09-21 | 25377843.00 | ND |
| 2021-10-18 | 25561534.00 | ND |
| 2021-10-18 | 25561590.00 | ND |
| 2021-11-18 | 25739005.00 | ND |
| 2021-12-14 | 26093151.00 | ND |
| 2021-12-14 | 26093095.00 | ND |
| 2022-01-20 | 26093596.00 | ND |
| 2022-01-20 | 26093540.00 | ND |
| 2022-03-15 | 26434816.00 | ND |
| 2022-03-15 | 26434872.00 | ND |
| 2022-06-16 | 27205535.00 | ND |
| 2022-06-16 | 27205591.00 | ND |
| 2022-07-28 | 27412633.00 | ND |
| 2022-07-28 | 27412733.00 | ND |
| 2022-08-16 | 27412833.00 | ND |
| 2022-08-16 | 27412889.00 | ND |
| 2022-09-13 | 27615680.00 | ND |
| 2022-09-13 | 27615870.00 | ND |
| 2022-10-06 | 27972718.00 | ND |
| 2022-10-06 | 27972843.00 | ND |
| 2022-11-21 | 27973402.00 | ND |
| 2022-11-21 | 27973527.00 | ND |
| 2022-12-07 | 28147731.00 | ND |
| 2022-12-07 | 28147856.00 | ND |
| 2023-01-19 | 28494413.00 | ND |
| 2023-01-19 | 28494182.00 | ND |
| 2023-02-07 | 28494767.00 | ND |
| 2023-02-07 | 28494892.00 | 2.20 ppt |
| 2023-03-01 | 28673742.00 | 2.60 ppt |
| 2023-03-09 | 28673671.00 | 2.60 ppt |
| 2023-03-17 | 28673767.00 | ND |
| 2023-03-22 | 28674111.00 | ND |
| 2023-03-28 | 28871668.00 | ND |
| 2023-03-28 | 28871393.00 | ND |
| 2023-04-18 | 28872292.00 | ND |
| 2023-04-18 | 29073589.00 | ND |
| 2023-05-15 | 29073989.00 | ND |
| 2023-05-15 | 29073864.00 | ND |
| 2023-06-12 | 29274473.00 | ND |
| 2023-06-12 | 29274598.00 | ND |
| 2023-07-18 | 29671148.00 | ND |
| 2023-07-18 | 29467886.00 | ND |
| 2023-08-22 | 29860197.00 | ND |
| 2023-08-22 | 29860322.00 | ND |
| 2023-09-12 | 29860582.00 | ND |
| 2023-09-12 | 29860707.00 | ND |
| 2023-10-10 | 30044202.00 | ND |
| 2023-11-21 | 30394866.00 | ND |
| 2023-11-21 | 30221206.00 | ND |
| 2023-11-21 | 30394966.00 | ND |
| 2023-11-21 | 30221306.00 | ND |
| 2023-12-12 | 30579073.00 | ND |
| 2023-12-12 | 30579173.00 | ND |
| 2024-02-20 | 113384P | ND |
| 2024-02-20 | 113385P | ND |
| 2024-02-20 | 113386P | ND |
| 2024-02-20 | 113387P | ND |
| 2024-02-20 | 113388P | ND |
| 2024-02-20 | 113389P | ND |
| 2024-08-20 | 120049P | ND |
| 2024-08-20 | 120051P | ND |
| 2024-08-20 | 120052P | ND |
| 2024-08-20 | 120053P | ND |