Perfluorononanoic acid (PFNA)
Crockery Mobile Home 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 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-09-20 | GWNT1809201330KER | ND |
| 2018-09-20 | GWNT1809201345KER | ND |
| 2019-03-27 | GWNT1903271115KER | ND |
| 2019-06-17 | GWNT1906171310RL | ND |
| 2019-09-16 | GWNT1909160930GGA | ND |
| 2019-12-17 | GWNT1912170850KME | ND |
| 2020-03-24 | GWNT2003241435GGA | ND |
| 2020-06-29 | GWNT2006291130GGA | ND |
| 2020-10-05 | LJ28015 | ND |
| 2020-10-05 | LJ28014 | ND |
| 2020-10-05 | GWNT2010051320GGA | ND |
| 2020-10-05 | GWNT2010051300GGA | ND |
| 2021-02-02 | ND | |
| 2021-02-02 | 2102122-01 | ND |
| 2021-03-12 | ND | |
| 2021-03-12 | 2103617-01 PFAS | ND |
| 2021-06-11 | 2106825-01 | ND |
| 2021-09-27 | ND | |
| 2021-09-27 | 2109F09-01 | ND |
| 2021-11-08 | 2111405-01 | ND |
| 2022-09-06 | 2209242-01-PFAS | ND |
| 2022-09-06 | ND | |
| 2023-08-30 | ND |