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EWG's Tap Water Database — 2021 UPDATE

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Perfluorohexane sulfonate (PFHXS)

California American Water Company - Antelope

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.

MORE ABOUT THIS CONTAMINANT

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND280ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND170ND

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.

EPA Maximum Contaminant
Level (MCL) 10 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2013-02-0520900601ND
2013-02-0620900301ND
2013-02-0620900401ND
2013-02-0620901101ND
2013-02-1120900701ND
2013-03-0520900001ND
2013-03-0520899901ND
2013-03-1120900901ND
2013-03-1120900101ND
2013-03-1220901001ND
2013-03-1220900201ND
2013-06-2720900501ND
2013-06-2722953901ND
2013-06-2720900801ND
2013-08-0723013901ND
2013-08-0723014401ND
2013-08-0823014301ND
2013-08-0823013801ND
2013-08-0823014001ND
2013-08-1223013601ND
2013-08-1223014801ND
2013-08-1223014601ND
2013-08-1323014101ND
2013-08-1323014701ND
2013-08-1523013701ND
2013-12-1224576001ND
2013-12-1224576101ND
2013-12-1224576201ND
2019-11-041225-010-1432ND
2019-11-041225-002-1505ND
2019-11-041225-009-1635ND
2019-11-041225-013-1155ND
2019-11-041225-014-1235ND
2019-11-041225-015-1335ND
2019-11-041225-001-1735ND
2019-11-041225-016-1530ND
2019-11-041225-017-1700ND
2019-11-051225-018-1420ND
2019-11-051225-012-1700ND
2019-11-051225-006-1550ND
2019-11-051225-004-1235ND
2019-11-051225-003-1630ND
2019-11-061225-008-1210ND
2019-11-061225-007-1315ND
2019-12-091225-011-1425ND