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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Moore

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.

 

125

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND120ND
2015ND180ND
2016ND240ND
2017ND220ND
2018ND300ND
2019ND190ND

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
2014-03-134C14011-05ND
2014-03-134C14011-08ND
2014-05-294E30010-05ND
2014-05-294E30010-06ND
2014-08-114H12133-01ND
2014-08-114H12133-02ND
2014-08-114H12133-03ND
2014-08-114H12133-04ND
2014-08-114H12133-05ND
2014-12-044L05007-04RE1ND
2014-12-044L05007-05RE1ND
2014-12-044L05007-06RE1ND
2015-03-165C17090-01ND
2015-03-165C17090-02ND
2015-03-165C17090-03ND
2015-03-165C17090-04ND
2015-06-245F26009-01ND
2015-06-245F26009-02ND
2015-06-245F26009-03ND
2015-06-245F26009-04ND
2015-08-175H18116-07ND
2015-08-175H18116-08ND
2015-12-085L08161-04ND
2015-12-085L08161-08ND
2015-12-085L08161-09ND
2015-12-085L08161-10ND
2015-12-225L22074-01ND
2015-12-225L22074-02ND
2015-12-225L22074-03ND
2015-12-225L22074-04ND
2016-02-226B23061-03ND
2016-02-226B23061-05ND
2016-02-236B23061-04ND
2016-03-246C25003-01ND
2016-03-246C25003-02ND
2016-03-246C25003-03ND
2016-03-246C25003-04ND
2016-03-246C25003-05ND
2016-04-286D29012-01ND
2016-04-286D29012-02ND
2016-04-286D29012-03ND
2016-04-286D29012-04ND
2016-04-286D29012-05ND
2016-08-186H19015-01ND
2016-08-186H19015-03ND
2016-08-186H19015-04ND
2016-08-186H19015-05ND
2016-08-186H19015-06ND
2016-12-286L29046-01ND
2016-12-286L29046-02ND
2016-12-286L29046-03ND
2016-12-286L29046-04ND
2016-12-286L29046-05ND
2016-12-286L29046-06ND
2017-03-237C24009-01ND
2017-03-237C24009-02ND
2017-03-237C24009-03ND
2017-03-237C24009-04ND
2017-03-237C24009-05ND
2017-03-237C24009-06ND
2017-06-297F29076-02ND
2017-06-297F29076-03ND
2017-06-297F29076-04ND
2017-06-297F29076-05ND
2017-06-307G03081-01ND
2017-06-307G03081-02ND
2017-09-117I12038-05ND
2017-10-317K01144-01ND
2017-10-317K01144-02ND
2017-10-317K01144-03ND
2017-10-317K01144-04ND
2017-10-317K01144-05ND
2017-10-317K01144-06ND
2017-10-317K01144-07ND
2017-10-317K01144-08ND
2017-10-317K01144-09ND
2018-03-13AC13155-01ND
2018-03-13AC13155-04ND
2018-03-13AC13155-05ND
2018-03-13AC13155-06ND
2018-03-28AC29087-01ND
2018-03-28AC29087-04ND
2018-03-29AC29087-02ND
2018-03-29AC29087-03ND
2018-06-11AF12161-02ND
2018-06-11AF12161-03ND
2018-06-11AF12161-04ND
2018-06-11AF12161-05ND
2018-06-11AF12161-06ND
2018-06-11AF12163-04ND
2018-06-11AF12163-05ND
2018-06-11AF12163-06ND
2018-08-13AH14228-01ND
2018-08-13AH14228-03ND
2018-08-13AH14228-04ND
2018-08-13AH14228-05ND
2018-08-13AH14228-06ND
2018-08-13AH14228-07ND
2018-11-19AK20110-01ND
2018-11-19AK20110-03ND
2018-11-19AK20110-04ND
2018-11-19AK20110-06ND
2018-11-19AK20110-07ND
2018-11-19AK20110-08ND
2018-11-19AK20110-09ND
2018-11-19AK20110-10ND
2019-03-26BC26100-04ND
2019-03-26BC26100-05ND
2019-03-26BC26100-06ND
2019-06-25BF26016-04ND
2019-06-25BF26016-05ND
2019-08-26BH27135-01ND
2019-08-27BH27135-02ND
2019-08-27BH27135-03ND
2019-08-27BH27135-04ND
2019-08-27BH27135-05ND
2019-08-27BH27135-06ND
2019-08-27BH27135-07ND
2019-09-16BI17137-02ND
2019-09-16BI17137-04ND
2019-09-16BI17137-05ND
2019-12-12BL13011-03ND
2019-12-12BL13011-04ND
2019-12-12BL13011-05ND
2019-12-12BL13011-06ND