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EWG's Tap Water Database — 2021 UPDATE

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Ethylbenzene

Bayleaf Master

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.”

 

258

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0117 ppb531ND - 0.620 ppb
2015ND460ND
2016ND370ND
2017ND410ND
2018ND440ND
2019ND370ND

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
2014-01-06C316053-01ND
2014-01-16C316060-01ND
2014-01-20C316039-01ND
2014-01-21C316067-01ND
2014-01-23C316024-01RE1ND
2014-02-19C316072-03ND
2014-02-24C402088-01ND
2014-02-24C402088-03ND
2014-02-24C402088-05ND
2014-02-24C316029-01ND
2014-02-26C316064-03ND
2014-02-26C316050-01ND
2014-02-26C316064-01ND
2014-04-03C404036-01ND
2014-04-07C403014-01ND
2014-04-10C403007-01ND
2014-04-15C404043-01ND
2014-04-17C402981-01ND
2014-04-22C404026-01ND
2014-04-24C403020-01RE1ND
2014-05-08C402995-01ND
2014-05-14C403005-01ND
2014-05-19C403003-01ND
2014-07-08C407804-11ND
2014-07-08C407789-01ND
2014-07-09C407804-09ND
2014-07-09C408790-01ND
2014-07-09C408790-03ND
2014-07-10C409083-01ND
2014-07-10C409083-03ND
2014-07-10C409083-05ND
2014-07-15C407786-01ND
2014-07-16C407802-01ND
2014-07-16C407802-03ND
2014-07-16C407808-01ND
2014-07-16C407808-03ND
2014-07-16C407809-01ND
2014-07-16C408015-01ND
2014-07-21C407799-01ND
2014-07-21C408796-01ND
2014-07-22C407780-01ND
2014-07-22C407780-03ND
2014-07-22C407793-01ND
2014-07-23C407805-01ND
2014-07-23C407816-01ND
2014-07-31C407784-05ND
2014-08-02C409900-03ND
2014-08-04C409900-01ND
2014-08-05C407795-01ND
2014-10-07C411987-01ND
2014-10-07C411995-01ND
2014-10-13C412200-01ND
2014-10-21C411998-010.620 ppb
2015-01-07ND
2015-01-14ND
2015-01-19ND
2015-01-21ND
2015-01-23ND
2015-01-23ND
2015-01-26ND
2015-01-27ND
2015-01-28ND
2015-02-04ND
2015-04-08ND
2015-04-08ND
2015-04-09ND
2015-04-13ND
2015-04-13ND
2015-04-13ND
2015-04-15ND
2015-04-15ND
2015-04-29ND
2015-04-29ND
2015-04-29ND
2015-04-30ND
2015-04-30ND
2015-05-06ND
2015-05-06ND
2015-05-11ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-07-10ND
2015-07-15ND
2015-07-15ND
2015-07-20ND
2015-07-21ND
2015-07-22ND
2015-07-22ND
2015-07-29ND
2015-07-30ND
2015-07-30ND
2015-07-31ND
2015-08-05ND
2015-08-07ND
2015-08-27ND
2015-10-14ND
2015-10-16ND
2015-10-16ND
2016-01-04C515809-01ND
2016-01-04C515809-03ND
2016-01-05C515769-01ND
2016-01-05C515769-05ND
2016-01-05C515813-01ND
2016-01-07C515774-01ND
2016-02-02CZ01456-01ND
2016-02-10C515827-01ND
2016-03-23CZ02856-01ND
2016-04-18CZ03115-01ND
2016-04-18CZ03129-01ND
2016-04-18CZ03155-03ND
2016-04-19CZ03121-03ND
2016-04-20CZ03114-01ND
2016-04-20CZ03123-01ND
2016-04-20CZ03147-01ND
2016-04-20CZ05544-01ND
2016-04-21CZ03117-01ND
2016-04-21CZ03117-03ND
2016-04-25CZ05704-01ND
2016-04-26CZ03158-01ND
2016-05-16CZ03160-01ND
2016-05-19CZ03143-01ND
2016-05-27CZ03519-01ND
2016-07-08CZ08306-01ND
2016-07-11CZ08298-01ND
2016-07-21CZ08297-01ND
2016-07-28CZ08311-01ND
2016-07-28CZ08316-01ND
2016-07-28CZ08319-01ND
2016-08-04CZ08301-01ND
2016-08-04CZ08304-01ND
2016-08-04CZ08304-03ND
2016-08-16CZ08307-01ND
2016-09-19CZ08292-01ND
2016-10-04CZ13742-01ND
2016-11-17CZ13729-01ND
2017-01-16CZ18678-01ND
2017-01-16CZ18678-03ND
2017-01-16CZ18690-01ND
2017-01-19CZ18702-01ND
2017-01-19CZ18702-03ND
2017-01-19CZ18710-01ND
2017-01-19CZ18710-03ND
2017-01-19CZ18710-05ND
2017-01-19CZ18710-07ND
2017-01-20CZ18668-01ND
2017-02-02CZ18705-01ND
2017-03-29CZ18697-01ND
2017-04-17CA02837-01ND
2017-04-19CA02827-01ND
2017-04-19CA02839-01ND
2017-04-26CA02841-01ND
2017-06-08CA02850-01ND
2017-07-13CA07676-01ND
2017-07-13CA07692-01ND
2017-07-17CA07668-05ND
2017-07-17CA07673-01ND
2017-07-17CA07682-09ND
2017-07-18CA10950-01ND
2017-07-18CA10950-03ND
2017-07-18CA10950-05ND
2017-07-20CA07881-01ND
2017-07-20CA07665-01ND
2017-07-21CA11118-01ND
2017-08-01CA07670-01ND
2017-08-01CA11640-01ND
2017-08-02CA07681-03ND
2017-08-02CA07686-03ND
2017-08-03CA11893-01ND
2017-08-09CA10922-01ND
2017-08-16680-142527-39ND
2017-08-17CA07687-01ND
2017-09-13CA07683-01ND
2017-09-22CA14694-01ND
2017-09-27CA07660-01ND
2017-10-31CA14929-01ND
2017-12-20CA13199-01ND
2018-01-24CA18118-01 ND
2018-01-24CA18118-03 ND
2018-01-29CA18123-01 ND
2018-01-29CA18165-01 ND
2018-01-29CA18199-01 ND
2018-01-31CA18168-01 ND
2018-02-01CA18110-01 ND
2018-04-09CB03223-01 ND
2018-04-09CB03228-01 ND
2018-04-09CB03251-01 ND
2018-04-11CB03243-01 ND
2018-04-11CB03243-03 ND
2018-04-12CB03221-01 ND
2018-04-12CB03224-01 ND
2018-04-13CB03261-01 ND
2018-04-17CB03264-01 ND
2018-04-18CB03232-01 ND
2018-04-18CB03240-03 ND
2018-04-18CB03240-05 ND
2018-04-25CB06130-01 ND
2018-05-16CB03236-01 ND
2018-05-16CB03236-03 ND
2018-05-16CB07363-01 ND
2018-07-19CB08081-01 ND
2018-07-19CB08092-01 ND
2018-07-20CB08087-01 ND
2018-07-20CB08087-03 ND
2018-07-20CB08094-01 ND
2018-07-20CB08095-01 ND
2018-07-20CB08107-01 ND
2018-07-24CB08083-01 ND
2018-07-25CB08101-01 ND
2018-07-25CB08101-03 ND
2018-07-25CB08101-05 ND
2018-07-25CB08101-07 ND
2018-07-25CB08103-01RE1 ND
2018-07-26CB08106-01 ND
2018-08-10CB08085-01 ND
2018-09-17CB08108-01 ND
2018-09-18CB08088-01 ND
2018-09-25CB14506-01 ND
2018-10-08CB14297-01 ND
2018-10-11CB14305-01 ND
2018-10-25CB14502-01 ND
2019-01-14CB18602-01 ND
2019-01-14CB18602-05 ND
2019-01-23CB18607-01 ND
2019-02-06CB18678-01 ND
2019-02-15CB18645-01 ND
2019-02-21CB18641-01 ND
2019-02-21CB18660-01 ND
2019-03-18CC04646-01 ND
2019-04-15CC04003-01 ND
2019-04-15CC04003-03 ND
2019-04-15CC04003-05 ND
2019-04-15CC04041-01 ND
2019-04-17CC03997-01 ND
2019-04-17CC03997-03 ND
2019-04-17CC04014-01 ND
2019-04-24CC04048-01 ND
2019-04-25CC03993-01 ND
2019-04-25CC04005-01 ND
2019-04-25CC06332-01 ND
2019-05-07CC04028-01 ND
2019-05-07CC04044-01 ND
2019-05-14CC04033-01 ND
2019-05-15CC03995-01 ND
2019-05-15CC04064-01 ND
2019-07-24CC10475-01 ND
2019-07-24CC10500-01 ND
2019-07-25CC10489-01 ND
2019-07-26CC10510-01 ND
2019-08-16CC10486-01 ND
2019-08-16CC10486-03 ND
2019-08-28CC10495-01 ND
2019-09-16CC10480-01 ND
2019-09-17CC10482-01 ND
2019-09-18CC10484-01RE1 ND
2019-10-17CC15782-01 ND
2019-12-05CC10490-01 ND
2019-12-06CC16898-01 ND