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EWG's Tap Water Database — 2019 UPDATE

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Benzene

Tract 349 Mutual Water Co.

Benzene is a known human carcinogen. It also damages blood cells and the nervous system. Emissions from petroleum processing, hazardous waste landfills and underground storage tanks contaminate drinking water with benzene. Read More.

To protect against cancer risks, California set a public health goal for benzene in drinking water at 0.15 parts per billion, 30 times lower than the federal legal limit of 5 parts per billion.

Click here to read more about carcinogenic VOCs.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND60ND
2014ND50ND
2015ND60ND
2016ND50ND
2017ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.15 ppb

The EWG Health Guideline of 0.15 ppb for benzene 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 cancer.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for benzene, established in 1987, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to benzene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-122706-002-0820ND
2012-01-232706-002-1230ND
2012-04-242706-002-0900ND
2012-07-122706-002-0835ND
2012-10-222706-003-1055ND
2012-10-222706-002-1040ND
2013-01-212706-002-1140ND
2013-04-162706-002-0820ND
2013-09-272706-002-0825ND
2013-10-102706-002-0914ND
2013-10-242706-002-0900ND
2013-10-242706-003-0930ND
2014-02-069588-002-0916ND
2014-04-169588-002-1015ND
2014-07-319588-002-0915ND
2014-12-099588-003-0914ND
2014-12-129588-002-0938ND
2015-03-209588-002-0930ND
2015-04-249588-002-0940ND
2015-07-309588-002-1133ND
2015-09-259588-002-0905ND
2015-10-239588-002-0932ND
2015-10-269588-003-0929ND
2016-01-299588-003-0900ND
2016-03-299588-002-0926ND
2016-05-279588-002-0915ND
2016-07-229588-002-0939ND
2016-10-149588-002-0930ND
2017-01-279588-002-0920ND
2017-02-109588-002-0850ND
2017-02-249588-003-0910ND
2017-03-109588-002-0925ND
2017-04-219588-002-0907ND
2017-07-149588-002-0915ND
2017-10-279588-002-0950ND
2017-11-179588-002-1115ND