Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochlorobenzene (chlorobenzene)

Horsham Water&sewer Authority

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.

MORE ABOUT THIS CONTAMINANT

 

106

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND230ND
2015ND240ND
2016ND220ND
2017ND160ND
2018ND80ND
2019ND130ND

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
2014-01-09AE19948ND
2014-01-09AE19956ND
2014-01-09AE19959ND
2014-01-24AE21287ND
2014-02-19AE24091ND
2014-02-19AE24093ND
2014-02-19AE24094ND
2014-02-19AE24099ND
2014-02-19AE24100ND
2014-02-20AE24092ND
2014-04-16AE29642ND
2014-04-16AE29643ND
2014-04-16AE29635ND
2014-04-16AE29638ND
2014-04-16AE29639ND
2014-07-23AE41288ND
2014-07-23AE41289ND
2014-08-13AE43999ND
2014-08-13AE44001ND
2014-08-13AE44009ND
2014-10-08AE51808ND
2014-10-09AE51797ND
2014-10-09AE51805ND
2015-01-1612286581ND
2015-01-1612286591ND
2015-01-1612286612ND
2015-03-0412514943ND
2015-03-0412514964ND
2015-03-0412514985ND
2015-03-0412515006ND
2015-03-0412515027ND
2015-03-0412515048ND
2015-03-0412515069ND
2015-03-0412515090ND
2015-03-0412515111ND
2015-04-1612632995ND
2015-04-1612633037ND
2015-04-1612633058ND
2015-04-2312633016ND
2015-07-1513012147ND
2015-07-1513012189ND
2015-07-1713012126ND
2015-07-1713012168ND
2015-10-1313388720ND
2015-10-1413388657ND
2015-10-1413388678ND
2015-10-1413388699ND
2016-01-1213752682ND
2016-01-1213752703ND
2016-01-1213752724ND
2016-02-1613869804ND
2016-03-1613985448ND
2016-03-1613985469ND
2016-03-1613985505ND
2016-03-1613985532ND
2016-03-1613985553ND
2016-03-1613985574ND
2016-03-1713985427ND
2016-03-1713985490ND
2016-04-2614102751ND
2016-05-1714250265ND
2016-05-1714250286ND
2016-05-1714250307ND
2016-07-1914569343ND
2016-07-1914569364ND
2016-07-1914569385ND
2016-10-2615075525ND
2016-10-2615075546ND
2016-10-2615075567ND
2017-01-0515517128ND
2017-01-0515517086ND
2017-01-2515517107ND
2017-02-1415655275ND
2017-02-1415655296ND
2017-02-1415655317ND
2017-02-1415655254ND
2017-03-3015795476ND
2017-04-0515936825ND
2017-04-0515936846ND
2017-04-0515936867ND
2017-04-1815936804ND
2017-08-0916565752ND
2017-08-1616565710ND
2017-08-1616565731ND
2017-10-1016880021ND
2018-01-30AF74814ND
2018-01-30AF74813ND
2018-02-13AF75932ND
2018-03-23AF79016ND
2018-06-22AF86999ND
2018-08-30AF94269ND
2018-10-03AF96985ND
2018-12-27AG04620ND
2019-02-11AG07771ND
2019-02-11AG07772ND
2019-02-11AG07773ND
2019-02-11AG07775ND
2019-02-27AG09179ND
2019-04-11AG13046ND
2019-04-11AG13047ND
2019-05-09AG16016ND
2019-05-09AG16019ND
2019-05-23AG16891ND
2019-08-21AG28299ND
2019-09-18AG31924ND
2019-09-18AG31925ND