Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Fort Bend County Municipal Utility District 121

NOTE: Fort Bend County Municipal Utility District 121 purchases water from City of Richmond which is required to test for perfluorooctane sulfonate (pfos). Sample information shown below was taken by City of Richmond.

Perfluorooctane sulfonate (PFOS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND40ND
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND20ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.3 ppt

The EWG Health Guideline of 0.3 ppt for PFOS was defined by EPA's final toxicity value from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects againat cardiovascular harm and harm to fetal growth.

EPA Maximum Contaminant
Level (MCL): 4 ppt

ppt = parts per trillion

All test results

NOTE: Fort Bend County Municipal Utility District 121 purchases water from City of Richmond which is required to test for perfluorooctane sulfonate (pfos). Sample information shown below was taken by City of Richmond.

Date Lab ID Result
2014-11-20Q1456891009ND
2014-11-20Q1456891013ND
2014-11-20Q1456891001ND
2014-11-20Q1456891005ND
2015-05-18Q1518147009ND
2015-05-18Q1518147005ND
2015-05-18Q1518147013ND
2015-05-18Q1518147001ND