Know Your Environment. Protect Your Health.

Perfluorotridecanoic acid (PFTrDA)

Lakewood Water District

Perfluorotridecanoic acid (PFTrDA) is a member of a group of perfluorinated chemicals used in many consumer products. PFTrDA 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.

 

25

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
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022ND30ND
2023ND170ND
2024ND50ND

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 PFTrDA was based on the EPA's recommended application of the toxicity value for PFDA 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 Lab ID Result
2022-05-044314994ND
2022-09-294370029ND
2022-09-294370030ND
2023-02-284444785ND
2023-11-074543360ND
2023-11-074543356ND
2023-11-074543355ND
2023-11-074543354ND
2023-11-074543357ND
2023-11-074543361ND
2023-11-074543359ND
2023-11-074543358ND
2023-11-084543367ND
2023-11-084543364ND
2023-11-084543362ND
2023-11-084543363ND
2023-11-084543368ND
2023-11-084543365ND
2023-11-084543366ND
2023-12-134552320ND
2024-04-17380-92166-1ND
2024-04-17380-92166-2ND
2024-04-17380-92166-3ND
2024-04-17380-92166-5ND
2024-05-09380-95307-1ND