Perfluorononanoic acid (PFNA)
Dykeer Water Company
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 | 0.470 ppt | 30 | 14 | ND - 1.44 ppt |
| 2022 | 0.494 ppt | 26 | 14 | ND - 1.22 ppt |
| 2023 | 0.609 ppt | 23 | 5 | ND - 3.60 ppt |
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 |
|---|---|---|
| 2021-01-07 | L2100951-03-PFAS | ND |
| 2021-01-07 | L2100951-04-PFAS | ND |
| 2021-01-07 | L2100951-05-PFAS | ND |
| 2021-01-07 | L2100951-02-PFAS | ND |
| 2021-01-21 | L2103262-04-PFAS | ND |
| 2021-01-21 | L2103262-05-PFAS | ND |
| 2021-01-21 | L2103262-02-PFAS | ND |
| 2021-01-21 | L2103262-03-PFAS | ND |
| 2021-05-04 | L2123105-04-PFAS | ND |
| 2021-05-04 | L2123105-02-PFAS | ND |
| 2021-05-04 | L2123105-03-PFAS | ND |
| 2021-05-04 | L2123105-05-PFAS | ND |
| 2021-06-01 | L2129157-02-PFAS | ND |
| 2021-06-01 | L2129157-04-PFAS | ND |
| 2021-06-01 | L2129157-03-PFAS | ND |
| 2021-06-01 | L2129157-05-PFAS | ND |
| 2021-07-20 | L2138909-05-PFAS | 0.986 ppt |
| 2021-07-20 | L2138909-03-PFAS | 0.588 ppt |
| 2021-07-20 | L2138909-02-PFAS | 1.18 ppt |
| 2021-07-20 | L2138909-04-PFAS | 0.920 ppt |
| 2021-08-11 | L2143190-04-PFAS | 0.967 ppt |
| 2021-08-11 | L2143190-02-PFAS | 1.26 ppt |
| 2021-08-11 | L2143190-05-PFAS | 1.18 ppt |
| 2021-08-11 | L2143190-03-PFAS | 0.797 ppt |
| 2021-12-01 | L2166855-04-PFAS | 1.44 ppt |
| 2021-12-01 | L2166855-02-PFAS | 1.12 ppt |
| 2021-12-01 | L2166855-03-PFAS | 0.626 ppt |
| 2021-12-28 | L2171316-02-PFAS | 0.710 ppt |
| 2021-12-28 | L2171316-03-PFAS | 1.15 ppt |
| 2021-12-28 | L2171316-01-PFAS | 1.18 ppt |
| 2022-02-15 | L2209126-03-PFAS | 1.07 ppt |
| 2022-02-15 | L2209126-02-PFAS | 0.635 ppt |
| 2022-02-15 | L2209126-01-PFAS | 1.18 ppt |
| 2022-03-20 | L2214677-03-PFAS | ND |
| 2022-03-20 | L2214677-02-PFAS | 1.09 ppt |
| 2022-03-20 | L2214677-04-PFAS | 1.12 ppt |
| 2022-06-19 | L2232816-03-PFAS | 0.880 ppt |
| 2022-06-19 | L2232816-01-PFAS | 0.950 ppt |
| 2022-06-19 | L2232816-02-PFAS | 0.620 ppt |
| 2022-06-26 | L2234235-01-PFAS | 0.980 ppt |
| 2022-06-26 | L2234235-02-PFAS | 0.740 ppt |
| 2022-06-26 | L2234235-03-PFAS | 0.850 ppt |
| 2022-07-25 | 70223506001-PFAS | ND |
| 2022-07-25 | 70223506003-PFAS | ND |
| 2022-07-25 | 70223506002-PFAS | ND |
| 2022-08-09 | 70225337001-PFAS | ND |
| 2022-08-09 | 70225337002-PFAS | ND |
| 2022-08-09 | 70225337003-PFAS | ND |
| 2022-10-30 | L2261019-01-PFAS | 0.700 ppt |
| 2022-10-30 | L2261019-02-PFAS | 0.800 ppt |
| 2022-10-30 | L2261019-03-PFAS | 1.22 ppt |
| 2022-12-14 | 22L1983-03-PFAS | ND |
| 2022-12-14 | 22L1983-07-PFAS | ND |
| 2022-12-14 | 22L1983-01-PFAS | ND |
| 2022-12-14 | 22L1983-05-PFAS | ND |
| 2022-12-14 | 22L1983-09-PFAS | ND |
| 2023-02-02 | 23B0338-01-PFAS | ND |
| 2023-02-02 | 23B0336-04-PFAS | ND |
| 2023-02-02 | 23B0336-18-PFAS | ND |
| 2023-02-02 | 23B0336-08-PFAS | ND |
| 2023-02-02 | 23B0336-06-PFAS | ND |
| 2023-04-19 | 23D2193-18-PFAS | ND |
| 2023-04-19 | 23D2183-03-PFAS | ND |
| 2023-04-19 | 23D2193-16-PFAS | ND |
| 2023-04-19 | 23D2183-01-PFAS | 2.40 ppt |
| 2023-04-19 | 23D2193-14-PFAS | 2.80 ppt |
| 2023-04-19 | 23D2183-05-PFAS | ND |
| 2023-07-19 | 23G2523-15-PFAS | 2.70 ppt |
| 2023-07-19 | 23G2523-13-PFAS | 3.60 ppt |
| 2023-07-19 | 23G2523-17-PFAS | ND |
| 2023-07-19 | 23G2523-11-PFAS | ND |
| 2023-07-19 | 23G2523-07-PFAS | ND |
| 2023-07-19 | 23G2523-09-PFAS | ND |
| 2023-10-13 | 23J2005-08-PFAS | ND |
| 2023-10-13 | 23J2005-02-PFAS | ND |
| 2023-10-13 | 23J2005-12-PFAS | ND |
| 2023-10-13 | 23J2005-06-PFAS | ND |
| 2023-10-13 | 23J2005-04-PFAS | ND |
| 2023-10-13 | 23J2005-10-PFAS | 2.50 ppt |