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EWG's Tap Water Database — 2019 UPDATE

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Monochlorobenzene (chlorobenzene)

City of Surprise - Mountain Vista

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.

 

89

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND160ND
2013ND160ND
2014ND160ND
2015ND120ND
2016ND150ND
2017ND140ND

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
2012-01-262012012-04VND
2012-01-262012012-03VND
2012-01-262012012-02VND
2012-01-262012012-01VND
2012-04-252042001-01VND
2012-04-252042000-01VND
2012-04-252041999-01VND
2012-04-252041994-01VND
2012-08-152081291-01VND
2012-08-152081287-01VND
2012-08-162081359-01VND
2012-09-042090143-01VND
2012-11-142111028-01VND
2012-11-142111027-01VND
2012-11-142111026-01VND
2012-11-142111024-01VND
2013-02-073020624-04ND
2013-02-073020624-03ND
2013-02-073020624-02ND
2013-02-073020624-01ND
2013-04-243041987-01VND
2013-04-243041985-01VND
2013-04-243041986-01VND
2013-04-243041989-01VND
2013-07-163071369-01VND
2013-07-163071367-01ND
2013-07-163071366-01ND
2013-07-163071362-01ND
2013-10-173101633-01VND
2013-10-173101632-01VND
2013-10-173101631-01VND
2013-10-173101630-01VND
2014-01-224011817-03ND
2014-01-224011817-01ND
2014-01-224011817-02ND
2014-01-224011817-04ND
2014-04-224041931-01VND
2014-04-224041930-01VND
2014-04-224041929-01VND
2014-04-224041927-01VND
2014-07-304072667-01VND
2014-07-304072665-01VND
2014-07-304072658-01VND
2014-07-304072656-01VND
2014-10-294102492-01ND
2014-10-294102491-01ND
2014-10-294102490-01ND
2014-10-294102474-01ND
2015-01-215011694-04VND
2015-01-215011694-01VND
2015-04-205041746-01VND
2015-04-205041743-01VND
2015-04-205041742-01VND
2015-04-205041741-01VND
2015-07-285072565-01VND
2015-07-285072564-01VND
2015-07-295072682-01ND
2015-07-295072676-01VND
2015-10-125101379-01VND
2015-10-125101369-01VOCND
2016-01-256012035-04VND
2016-01-256012035-03VND
2016-01-256012035-02VND
2016-01-256012035-01VND
2016-04-266042223-01VND
2016-04-266042222-01VND
2016-04-266042226-01VND
2016-04-266042227-01VND
2016-07-266072329-01VND
2016-07-266072325-01VND
2016-07-266072323-01VND
2016-07-266072321-01VND
2016-10-246102137-01VND
2016-10-246102135-01VOCND
2016-10-246102131-01ND
2017-01-307012591-04VND
2017-01-307012591-01VND
2017-01-307012591-02VND
2017-01-307012591-03VND
2017-04-207041996-01VOCND
2017-04-207041995-01VOCND
2017-04-207041987-01VOCND
2017-07-197071806-01ND
2017-07-197071804-01ND
2017-07-197071802-01ND
2017-10-117101207-02ND
2017-10-117101207-03ND
2017-10-117101207-04ND
2017-10-117101207-01ND