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EWG's Tap Water Database — 2019 UPDATE

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Perfluorohexane sulfonate (PFHXS)

City of Kerrville

Perfluorohexane sulfonate is a member of a group of perfluorinated chemicals used in many consumer products. 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.

 

14

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
2013ND70ND
2014ND70ND
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 perfluorohexane sulfonate 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
2013-08-2635106170009AMND
2013-08-2635106170001AMND
2013-08-2635106170005AMND
2013-08-2735106349001AMND
2013-08-2735106349005AMND
2013-08-2735106349009AMND
2013-11-1335115870001AMND
2014-02-1835127285005AMND
2014-02-1835127285001AMND
2014-02-1835127285009AMND
2014-02-1935127269005AMND
2014-02-1935127269001AMND
2014-02-1935127269009AMND
2014-05-2035139241001AMND