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EWG's Tap Water Database — 2019 UPDATE

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Ethylbenzene

La Habra Heights County Water District

Ethylbenzene, a component of petroleum, is a volatile cancer-causing chemical primarily used for production of plastics and rubber. Ethylbenzene is also released from gasoline fuel emissions. Read More.

In animal studies, exposure to ethylbenzene causes tumors. Ethylbenzene can also damage lungs, liver, kidneys and the nervous system. The International Agency for Research on Cancer classifies ethylbenzene as “possibly carcinogenic to humans.”

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND30ND
2015ND40ND
2016ND40ND
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 300 ppb

The EWG Health Guideline of 300 ppb for ethylbenzene was defined by the 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 700 ppb

The legal limit for ethylbenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1950s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-03-292706-009-0855ND
2012-04-172706-010-1335ND
2012-08-132706-005-1045ND
2013-01-222706-009-1115ND
2013-04-252706-010-1055ND
2013-07-162706-005-1340ND
2014-01-089588-009-0929ND
2014-04-119588-010-0930ND
2014-07-229588-005-0950ND
2015-03-049588-009-0928ND
2015-04-109588-010-0920ND
2015-07-289588-005-0947ND
2015-09-169588-006-1010ND
2016-03-219588-009-0940ND
2016-07-139588-010-0840ND
2016-07-139588-006-0857ND
2016-07-139588-005-0907ND
2017-01-179588-009-0925ND
2017-07-199588-010-0900ND
2017-07-199588-006-0934ND
2017-07-199588-005-0915ND