Perfluorononanoic acid (PFNA)
Arbor Hills Water Works
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 0.227 ppt | 17 | 3 | ND - 1.86 ppt |
| 2022 | 0.172 ppt | 25 | 4 | ND - 2.24 ppt |
| 2023 | ND | 21 | 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 |
|---|---|---|
| 2021-05-04 | L2123109-01-PFAS | ND |
| 2021-05-04 | L2123109-04-PFAS | ND |
| 2021-05-04 | L2123109-05-PFAS | 1.86 ppt |
| 2021-05-04 | L2123109-03-PFAS | ND |
| 2021-05-04 | L2123109-02-PFAS | ND |
| 2021-06-01 | L2129154-01-PFAS | ND |
| 2021-07-20 | L2138911-04-PFAS | ND |
| 2021-07-20 | L2318911-03-PFAS | ND |
| 2021-07-20 | L2138911-02-PFAS | ND |
| 2021-07-20 | L2138911-05-PFAS | 1.32 ppt |
| 2021-07-20 | L2138911-01-PFAS | ND |
| 2021-12-07 | L2167923-04-PFAS | ND |
| 2021-12-07 | L2167923-01-PFAS | ND |
| 2021-12-07 | L2167923-03-PFAS | ND |
| 2021-12-07 | L2167923-02-PFAS | ND |
| 2021-12-07 | L2167923-05-PFAS | 0.684 ppt |
| 2021-12-28 | L2171327-PFAS | ND |
| 2022-02-15 | L2209129-04-PFAS | ND |
| 2022-02-15 | L2209129-01-PFAS | ND |
| 2022-02-15 | L2209129-03-PFAS | 0.807 ppt |
| 2022-02-15 | L2209129-02-PFAS | ND |
| 2022-03-15 | L2213625-01-PFAS | ND |
| 2022-03-20 | L2214692-01-PFAS | 0.616 ppt |
| 2022-03-30 | L2217142-01-PFAS | 2.24 ppt |
| 2022-06-19 | L2232815-05-PFAS | ND |
| 2022-06-19 | L223281504-PFAS | ND |
| 2022-06-19 | L2232815-01-PFAS | ND |
| 2022-06-19 | L223281503-PFAS | 0.630 ppt |
| 2022-06-19 | L223281502-PFAS | ND |
| 2022-07-25 | 70223509004-PFAS | ND |
| 2022-07-25 | 70223509001-PFAS | ND |
| 2022-07-25 | 70223509003-PFAS | ND |
| 2022-07-25 | 70223509002-PFAS | ND |
| 2022-09-08 | 70228484001-PFAS | ND |
| 2022-09-08 | 70228484002-PFAS | ND |
| 2022-10-30 | L2261016-02-PFAS | ND |
| 2022-10-30 | L2261016-01-PFAS | ND |
| 2022-10-30 | L2261016-04-PFAS | ND |
| 2022-10-30 | L2261016-05-PFAS | ND |
| 2022-10-30 | L2261016-03-PFAS | ND |
| 2022-12-21 | 22L2960-07-PFAS | ND |
| 2022-12-21 | 22L2960-08-PFAS | ND |
| 2023-01-19 | 23A1937-05-PFAS | ND |
| 2023-01-19 | 23A1937-20-PFAS | ND |
| 2023-01-19 | 23A1937-01-PFAS | ND |
| 2023-02-22 | 23B2405-09-PFAS | ND |
| 2023-02-22 | 23B2405-13-PFAS | ND |
| 2023-02-22 | 23B2405-05-PFAS | ND |
| 2023-03-16 | 23C1873-09-PFAS | ND |
| 2023-03-16 | 23C1873-07-PFAS | ND |
| 2023-03-16 | 23C1873-01-PFAS | ND |
| 2023-03-16 | 23C1873-05-PFAS | ND |
| 2023-04-20 | 23D2372-03-PFAS | ND |
| 2023-04-20 | 23D2372-01-PFAS | ND |
| 2023-04-20 | 23D2372-05-PFAS | ND |
| 2023-07-13 | 23G1658-03-PFAS | ND |
| 2023-07-13 | 23G1658-01-PFAS | ND |
| 2023-07-13 | 23G1658-05-PFAS | ND |
| 2023-08-09 | 23H1477-01-PFAS | ND |
| 2023-10-12 | 23J1763-08-PFAS | ND |
| 2023-10-12 | 23J1763-12-PFAS | ND |
| 2023-10-12 | 23J1763-10-PFAS | ND |
| 2023-10-12 | 23J1763-06-PFAS | ND |