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EWG's Tap Water Database — 2021 UPDATE

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Perfluorohexane sulfonate (PFHXS)

Pico Rivera Water Department

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

 

54

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND120ND
2014ND80ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
20191.87 ppt3416ND - 9.00 ppt

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
2013-01-24440-36162-5ND
2013-01-24440-36162-1ND
2013-01-24440-36162-7ND
2013-01-24440-36162-11ND
2013-01-24440-36162-9ND
2013-01-24440-36162-3ND
2013-07-302869014ND
2013-07-302869035ND
2013-07-302868996ND
2013-07-302868987ND
2013-07-302869005ND
2013-07-302869023ND
2014-01-314A31062-01AND
2014-06-044F04050-01AND
2014-06-194F19089-01AND
2014-07-304G30066-01AND
2014-07-304G30066-03AND
2014-12-174L17087-01AND
2014-12-174L17087-03AND
2014-12-174L17087-05AND
2019-05-099588-006-0840ND
2019-05-099588-008-0915ND
2019-05-099588-011-0935ND
2019-05-239588-010-0956ND
2019-05-239588-002-1145ND
2019-05-239588-004-1105ND
2019-05-239588-005-1117ND
2019-05-239588-009-1030ND
2019-05-239588-007-0920ND
2019-06-139588-002-0820ND
2019-06-139588-005-0913ND
2019-06-139588-008-0852ND
2019-06-199588-007-0933ND
2019-06-199588-004-0854ND
2019-06-199588-009-0835ND
2019-06-269588-010-0944ND
2019-06-269588-011-0957ND
2019-06-269588-006-0924ND
2019-08-089588-008-09403.70 ppt
2019-08-089588-002-09054.30 ppt
2019-08-089588-004-10453.80 ppt
2019-08-089588-010-11204.60 ppt
2019-08-089588-005-10353.50 ppt
2019-08-089588-006-10184.50 ppt
2019-08-089588-009-11554.30 ppt
2019-08-089588-007-09502.60 ppt
2019-08-089588-011-11009.00 ppt
2019-11-259588-006-11154.50 ppt
2019-11-259588-010-10153.50 ppt
2019-11-259588-004-10404.20 ppt
2019-11-259588-007-09451.70 ppt
2019-11-259588-002-08404.20 ppt
2019-11-259588-008-09302.40 ppt
2019-11-259588-009-11402.90 ppt