Perfluorohexanoic Acid (PFHxA)

United Water Cons District

Perfluorohexanoic acid 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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	ND	20	ND

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 perfluorohexanoic acid 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 protects against applies to the entire class of PFAS detected in water.

ppt = parts per trillion

All test results

Date	Lab ID	Result
2019-11-04	4790-004-0908	ND
2019-11-04	4790-027-1008	ND
2019-11-04	4790-026-0924	ND
2019-11-04	4790-023-0934	ND
2019-11-04	4790-017-1016	ND
2019-11-04	4790-016-1040	ND
2019-11-04	4790-014-1200	ND
2019-11-04	4790-013-1032	ND
2019-11-04	4790-010-0916	ND
2019-11-04	4790-008-1022	ND
2019-11-04	4790-007-0928	ND
2019-11-04	4790-001-1126	ND
2019-11-06	4790-015-1000	ND
2019-12-12	4790-010-0900	ND
2019-12-12	4790-013-0920	ND
2019-12-12	4790-014-1055	ND
2019-12-12	4790-008-0945	ND
2019-12-12	4790-017-0910	ND
2019-12-12	4790-007-1020	ND
2019-12-12	4790-027-1035	ND