Know Your Environment. Protect Your Health.

Perfluorodecanoic acid (PFDA)

Littleton Water Department

Perfluorodecanoic acid (PFDA) is a member of a group of perfluorinated chemicals used in many consumer products. PFDA and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

 

150

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND70ND
2020ND180ND
2021ND360ND
2022ND510ND
2023ND370ND
2024ND10ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppt

The EWG Health Guideline of 0.006 ppt for PFDA was defined by EPA's toxicity value published in the Integrated Risk Information System’s toxicological review. This health guideline protects against harm to the immune system and harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Result
2019-06-19ND
2019-08-06ND
2019-08-06ND
2019-08-06ND
2019-08-06ND
2019-09-23ND
2019-12-09ND
2020-07-28ND
2020-07-28ND
2020-07-28ND
2020-10-15ND
2020-10-15ND
2020-10-15ND
2020-10-15ND
2020-10-15ND
2020-10-15ND
2020-10-15ND
2020-10-15ND
2020-11-04ND
2020-11-04ND
2020-11-04ND
2020-11-04ND
2020-12-02ND
2020-12-02ND
2020-12-02ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-02-08ND
2021-02-08ND
2021-02-08ND
2021-03-17ND
2021-03-17ND
2021-03-17ND
2021-04-05ND
2021-04-05ND
2021-04-05ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-06-08ND
2021-06-08ND
2021-06-08ND
2021-07-21ND
2021-07-21ND
2021-07-21ND
2021-09-08ND
2021-09-08ND
2021-09-08ND
2021-10-06ND
2021-10-06ND
2021-10-06ND
2021-10-13ND
2021-10-21ND
2021-10-28ND
2021-11-15ND
2021-11-15ND
2021-11-15ND
2021-12-14ND
2021-12-14ND
2021-12-14ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-18ND
2022-02-16ND
2022-02-16ND
2022-02-16ND
2022-03-16ND
2022-03-16ND
2022-03-16ND
2022-04-20ND
2022-04-20ND
2022-04-25ND
2022-04-27ND
2022-05-16ND
2022-05-16ND
2022-05-18ND
2022-05-18ND
2022-05-18ND
2022-06-22ND
2022-06-22ND
2022-06-22ND
2022-06-22ND
2022-07-13ND
2022-07-13ND
2022-07-13ND
2022-07-13ND
2022-07-13ND
2022-07-13ND
2022-08-03ND
2022-08-03ND
2022-08-03ND
2022-08-03ND
2022-09-26ND
2022-09-26ND
2022-09-27ND
2022-09-27ND
2022-10-19ND
2022-10-19ND
2022-10-19ND
2022-10-27ND
2022-10-27ND
2022-10-27ND
2022-11-07ND
2022-11-07ND
2022-11-09ND
2022-11-09ND
2022-12-20ND
2022-12-20ND
2022-12-20ND
2022-12-20ND
2023-01-03ND
2023-01-03ND
2023-01-24ND
2023-01-24ND
2023-01-24ND
2023-01-24ND
2023-02-01ND
2023-02-01ND
2023-03-07ND
2023-03-07ND
2023-04-18ND
2023-04-18ND
2023-04-18ND
2023-04-18ND
2023-05-17ND
2023-05-17ND
2023-05-17ND
2023-06-16ND
2023-06-16ND
2023-07-25ND
2023-07-25ND
2023-07-25ND
2023-07-25ND
2023-07-25ND
2023-07-25ND
2023-08-21ND
2023-08-21ND
2023-09-19ND
2023-09-19ND
2023-10-03ND
2023-10-03ND
2023-10-03ND
2023-10-12ND
2023-11-28ND
2023-11-28ND
2023-11-28ND
2023-12-19ND
2024-07-17ND