Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Groveland Water Department

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.279 ppt2311ND - 0.930 ppt
20220.184 ppt165ND - 0.986 ppt
20230.146 ppt92ND - 0.825 ppt
2024ND20ND

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 Result
2021-01-07ND
2021-01-070.911 ppt
2021-01-07ND
2021-01-07ND
2021-01-070.712 ppt
2021-02-01ND
2021-02-01ND
2021-02-010.503 ppt
2021-03-09ND
2021-03-09ND
2021-05-030.930 ppt
2021-06-030.450 ppt
2021-07-060.410 ppt
2021-07-06ND
2021-07-06ND
2021-07-060.410 ppt
2021-07-06ND
2021-08-020.520 ppt
2021-09-010.730 ppt
2021-10-04ND
2021-10-040.440 ppt
2021-11-050.400 ppt
2021-12-06ND
2022-01-06ND
2022-01-06ND
2022-02-07ND
2022-03-03ND
2022-04-01ND
2022-04-01ND
2022-05-02ND
2022-06-02ND
2022-07-06ND
2022-07-06ND
2022-08-020.480 ppt
2022-09-060.450 ppt
2022-10-03ND
2022-10-030.550 ppt
2022-11-080.472 ppt
2022-12-050.986 ppt
2023-01-05ND
2023-01-050.825 ppt
2023-02-07ND
2023-05-05ND
2023-05-050.485 ppt
2023-07-06ND
2023-07-06ND
2023-10-05ND
2023-10-05ND
2024-04-16ND
2024-04-16ND