Perfluorononanoic acid (PFNA)
Cal Am Water Company - Ambler Park
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 | ND | 3 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-12-05 | CA2710006_004_004-201912051330 | ND |
| 2019-12-11 | CA2710006_006_006-201912111320 | ND |
| 2019-12-11 | CA2710006_009_009-201912111335 | ND |
| 2021-04-15 | CA2710006_009_009-202104151425 | ND |
| 2021-04-22 | CA2710006_006_006-202104221434 | ND |
| 2021-04-22 | CA2710006_004_004-202104221445 | ND |
| 2021-07-21 | CA2710006_006_006-202107211320 | ND |
| 2021-07-21 | CA2710006_004_004-202107211332 | ND |
| 2021-07-29 | CA2710006_009_009-202107291307 | ND |
| 2021-10-08 | CA2710006_006_006-202110081323 | ND |
| 2021-10-08 | CA2710006_004_004-202110081330 | ND |
| 2021-10-21 | CA2710006_009_009-202110211129 | ND |
| 2022-01-20 | CA2710006_004_004-202201201335 | ND |
| 2022-01-26 | CA2710006_009_009-202201261425 | ND |
| 2022-02-10 | CA2710006_006_006-202202101045 | ND |