Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Monochlorobenzene (chlorobenzene)

City of Seal Beach

Monochlorobenzene is used as a solvent for pesticides, a degreasing agent and an intermediate for manufacturing other chemicals. It causes liver and kidney damage in studies of laboratory animals.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND50ND
2014ND40ND
2015ND20ND
2016ND20ND
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 70 ppb

The EWG Health Guideline of 70 ppb for monochlorobenzene 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) 100 ppb

The legal limit for monochlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-244417-002-0800ND
2012-01-244417-001-0820ND
2012-02-144417-009-0800ND
2012-05-094417-003-0740ND
2013-02-064417-002-0825ND
2013-02-074417-009-1410ND
2013-02-274417-001-0835ND
2013-10-304417-003-0800ND
2013-12-034417-003-0810ND
2014-01-304417-001-0930ND
2014-01-304417-002-0900ND
2014-01-304417-009-0955ND
2014-02-254417-003-0740ND
2015-01-204417-009-0805ND
2015-01-204417-002-0830ND
2016-01-274417-002-0930ND
2016-01-274417-009-0910ND
2017-01-124417-009-0835ND
2017-01-124417-002-0815ND