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EWG's Tap Water Database — 2021 UPDATE

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Perfluorooctanoic acid (PFOA)

Valencia Water Company

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.

 

85

Samples

0

Samples exceeding legal limit (MCL)

43

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
20143.36 ppt365ND - 26.0 ppt
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
201913.3 ppt4538ND - 29.0 ppt

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.007 ppt

The EWG Health Guideline of 0.007 ppt for PFOA was proposed by California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppt = parts per trillion

All test results

Date Lab ID Result
2013-02-27201303010058AMND
2013-05-15201305160535AMND
2013-08-23201308290470AMND
2013-11-11201311150009AMND
2014-03-05201403050959AMND
2014-03-05201403050961AMND
2014-03-12201403120915AM23.0 ppt
2014-03-12201403120917AM24.0 ppt
2014-03-12201403120928AMND
2014-04-09201404100450AMND
2014-04-16201404180187AMND
2014-04-16201404180193AMND
2014-04-16201404180189AMND
2014-04-16201404180185AMND
2014-04-16201404180191AMND
2014-04-23201404230714AMND
2014-05-14201405141013AMND
2014-05-28201405280602AM24.0 ppt
2014-05-28201405280604AMND
2014-05-28201405280606AMND
2014-06-11201406120231AMND
2014-06-11201406120233AMND
2014-06-25201406250428AMND
2014-09-04201409040732AMND
2014-09-04201409040734AMND
2014-09-04201409040736AMND
2014-10-09201410090961AMND
2014-10-10201410160744AMND
2014-10-10201410160738AMND
2014-10-10201410160742AMND
2014-10-10201410160740AMND
2014-10-16201410160748AM26.0 ppt
2014-10-16201410160746AM24.0 ppt
2014-11-06201411060675AMND
2014-11-06201411060677AMND
2014-11-20201411200794AMND
2014-11-20201411200788AMND
2014-11-20201411200792AMND
2014-11-20201411200796AMND
2014-11-20201411200790AMND
2019-05-099590-018-095514.0 ppt
2019-05-099590-024-093026.0 ppt
2019-05-099590-025-103522.0 ppt
2019-05-099590-005-095213.0 ppt
2019-05-099590-004-090527.0 ppt
2019-05-099590-046-100220.0 ppt
2019-05-099590-003-1115ND
2019-05-099590-047-085416.0 ppt
2019-05-099590-026-091029.0 ppt
2019-05-099590-049-09306.80 ppt
2019-08-079590-062-09057.60 ppt
2019-08-079590-021-09258.30 ppt
2019-08-079590-052-0840ND
2019-08-210006-051-10302.60 ppt
2019-08-210006-046-093017.0 ppt
2019-08-210006-017-10006.80 ppt
2019-08-210006-049-094017.0 ppt
2019-08-210006-025-085020.0 ppt
2019-08-210006-070-091010.00 ppt
2019-08-290006-018-090514.0 ppt
2019-08-290006-058-093514.0 ppt
2019-08-290006-005-105023.0 ppt
2019-08-290006-047-091523.0 ppt
2019-08-290006-004-092525.0 ppt
2019-08-290006-026-095022.0 ppt
2019-11-069590-018-082514.0 ppt
2019-11-069590-052-0840ND
2019-11-069590-058-100012.0 ppt
2019-11-069590-021-09266.70 ppt
2019-11-069590-062-09087.30 ppt
2019-11-069590-026-090022.0 ppt
2019-11-149590-070-092016.0 ppt
2019-11-149590-051-1100ND
2019-11-149590-049-091514.0 ppt
2019-11-149590-046-084022.0 ppt
2019-11-149590-025-093518.0 ppt
2019-11-149590-020-0830ND
2019-11-149590-017-09453.90 ppt
2019-11-209590-073-09307.90 ppt
2019-11-209590-047-092022.0 ppt
2019-11-209590-004-094018.0 ppt
2019-11-209590-003-0900ND
2019-11-219590-048-1120ND
2019-11-259590-005-103020.0 ppt
2019-12-129590-073-09008.50 ppt