Know Your Environment. Protect Your Health.

Perfluorotetradecanoic acid (PFTA)

Kent Water District 1

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND50ND
2022ND100ND
20230.440 ppt31ND - 1.32 ppt

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 PFTA 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
2021-09-17CJ31770ND
2021-10-14CJ56222ND
2021-11-30CJ88192ND
2021-11-30CJ88191ND
2021-12-29CK07047ND
2022-04-05CL10048ND
2022-05-09CL28454ND
2022-05-09CL28453ND
2022-06-06CL51650ND
2022-06-06CL51649ND
2022-08-08CM01022ND
2022-08-08CM01023ND
2022-09-13CM31545ND
2022-12-02CM98187ND
2022-12-02CM98186ND
2023-01-03CN16598ND
2023-02-20CN47643ND
2023-02-20CN476441.32 ppt