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EWG's Tap Water Database — 2019 UPDATE

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Perfluorooctanoic acid (PFOA)

City of Corona

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.

 

61

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20135.20 ppt102ND - 29.0 ppt
20147.10 ppt204ND - 42.0 ppt
2015N/A00N/A
2016N/A00N/A
201713.1 ppt319ND - 110.0 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 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
2013-10-09201310100234AMND
2013-10-09201310100238AMND
2013-10-09201310100242AM23.0 ppt
2013-10-09201310100240AMND
2013-10-09201310100236AMND
2013-10-23201310240242AMND
2013-10-23201310240244AMND
2013-10-23201310240252AMND
2013-10-23201310240246AM29.0 ppt
2013-10-23201310240240AMND
2014-01-15201401150771AMND
2014-01-15201401150773AM26.0 ppt
2014-01-15201401150769AMND
2014-01-16201401170062AM36.0 ppt
2014-01-16201401170060AM38.0 ppt
2014-04-09201404090849AMND
2014-04-09201404090853AMND
2014-04-09201404090857AMND
2014-04-09201404090855AMND
2014-04-09201404090851AMND
2014-04-17201404180148AMND
2014-04-17201404180150AMND
2014-04-22201404220789AMND
2014-04-24201404240693AMND
2014-04-24201404240697AMND
2014-07-10201407100762AMND
2014-07-10201407100756AMND
2014-07-10201407100758AM42.0 ppt
2014-07-10201407100760AMND
2014-07-15201407150791AMND
2017-11-159590-058-1040ND
2017-11-159590-057-1030ND
2017-11-159590-059-0950ND
2017-11-159590-046-1310ND
2017-11-159590-045-1300ND
2017-11-159590-044-1100ND
2017-11-159590-041-1430ND
2017-11-159590-036-0940ND
2017-11-159590-034-0900ND
2017-12-069590-015-135020.0 ppt
2017-12-069590-038-1500ND
2017-12-069590-014-1400ND
2017-12-069590-019-0920ND
2017-12-069590-023-0830ND
2017-12-069590-024-131030.0 ppt
2017-12-069590-027-130033.0 ppt
2017-12-069590-029-1430ND
2017-12-069590-030-122054.0 ppt
2017-12-069590-031-123074.0 ppt
2017-12-069590-032-125044.0 ppt
2017-12-069590-033-1210110.0 ppt
2017-12-069590-039-133020.0 ppt
2017-12-069590-043-1540ND
2017-12-069590-049-0850ND
2017-12-069590-056-1415ND
2017-12-199590-064-1030ND
2017-12-199590-041-1050ND
2017-12-199590-044-1320ND
2017-12-199590-057-1410ND
2017-12-199590-058-142020.0 ppt
2017-12-199590-059-1500ND