Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Leicester Water Supply District

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.

 

134

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
20200.120 ppt81ND - 0.960 ppt
20210.116 ppt447ND - 0.940 ppt
20220.0630 ppt463ND - 1.10 ppt
20230.173 ppt366ND - 1.30 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 Result
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-09ND
2020-12-090.960 ppt
2020-12-09ND
2020-12-09ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-22ND
2021-02-220.520 ppt
2021-02-22ND
2021-02-220.810 ppt
2021-05-13ND
2021-05-13ND
2021-05-13ND
2021-05-13ND
2021-05-130.750 ppt
2021-05-130.700 ppt
2021-05-13ND
2021-06-22ND
2021-06-22ND
2021-07-20ND
2021-08-110.500 ppt
2021-08-11ND
2021-08-11ND
2021-08-110.870 ppt
2021-08-11ND
2021-08-11ND
2021-08-11ND
2021-09-15ND
2021-09-15ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-21ND
2021-10-210.940 ppt
2021-10-21ND
2021-10-21ND
2021-11-23ND
2021-11-23ND
2021-12-15ND
2021-12-15ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-25ND
2022-01-26ND
2022-01-26ND
2022-01-26ND
2022-02-22ND
2022-02-22ND
2022-03-16ND
2022-03-16ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-04-28ND
2022-05-19ND
2022-05-19ND
2022-06-28ND
2022-06-28ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-20ND
2022-07-201.10 ppt
2022-07-20ND
2022-07-200.980 ppt
2022-08-25ND
2022-08-25ND
2022-09-22ND
2022-09-22ND
2022-10-260.810 ppt
2022-10-26ND
2022-10-26ND
2022-10-26ND
2022-11-22ND
2022-11-22ND
2022-12-20ND
2022-12-20ND
2023-01-27ND
2023-01-270.810 ppt
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-27ND
2023-01-270.800 ppt
2023-01-27ND
2023-02-21ND
2023-03-22ND
2023-04-251.30 ppt
2023-04-25ND
2023-04-25ND
2023-04-25ND
2023-04-25ND
2023-04-25ND
2023-05-22ND
2023-06-22ND
2023-07-24ND
2023-07-24ND
2023-07-241.10 ppt
2023-07-241.10 ppt
2023-07-24ND
2023-07-24ND
2023-08-22ND
2023-08-23ND
2023-09-28ND
2023-09-29ND
2023-10-17ND
2023-10-17ND
2023-10-17ND
2023-10-17ND
2023-10-171.10 ppt
2023-10-17ND