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EWG's Tap Water Database — 2019 UPDATE

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Perfluorooctanoic acid (PFOA)

Galveston County WCID 1

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND120ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for PFOA was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.

ppt = parts per trillion

All test results

Date Lab ID Result
2014-01-30Q1402958001ND
2014-01-30Q1402958009ND
2014-01-30Q1402958005ND
2014-01-30Q1402958003ND
2014-01-30Q1402958007ND
2014-04-23Q1412817001ND
2014-07-30Q1432033009ND
2014-07-30Q1432033005ND
2014-07-30Q1432033003ND
2014-07-30Q1432033001ND
2014-07-30Q1432033007ND
2014-10-22Q1453353001ND