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EWG's Tap Water Database — 2019 UPDATE

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Perfluorooctanoic acid (PFOA)

City of Caldwell

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.

 

26

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
2014ND130ND
2015ND130ND
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
2014-11-24141201004-007ND
2014-11-24141201004-008ND
2014-11-24141201001-008ND
2014-11-24141201001-010ND
2014-11-24141201001-009ND
2014-11-24141201004-010ND
2014-11-24141201001-012ND
2014-11-24141201001-007ND
2014-11-24141201001-011ND
2014-11-25141201004-009ND
2014-11-25141201004-011ND
2014-11-25141201004-006ND
2014-12-01141202018-003ND
2015-05-26150528035-003ND
2015-05-26150528035-001ND
2015-05-26150528035-008ND
2015-05-26150528035-002ND
2015-05-26150528035-005ND
2015-05-27150528035-007ND
2015-05-27150528035-010ND
2015-05-27150528035-009ND
2015-05-27150528035-004ND
2015-05-27150528035-006ND
2015-05-28150529019-003ND
2015-05-28150529019-002ND
2015-05-28150529019-001ND