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EWG's Tap Water Database — 2019 UPDATE

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Monochlorobenzene (chlorobenzene)

City of Sugar Land

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND30ND
2015ND70ND
2016ND80ND
2017ND60ND

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
2012-08-23AB99562ND
2013-12-03AC36506ND
2014-02-11AC42218ND
2014-04-29AC52055ND
2014-07-23AC60702ND
2015-01-22AC77367ND
2015-04-01AC86970ND
2015-04-01AC86974ND
2015-04-01AC86980ND
2015-04-01AC86978ND
2015-04-01AC86982ND
2015-04-01AC86976ND
2016-02-02AD21460ND
2016-02-02AD21456ND
2016-02-02AD21458ND
2016-02-02AD21464ND
2016-02-02AD21462ND
2016-02-02AD21466ND
2016-09-01AD47688ND
2016-10-05AD52573ND
2017-01-04AD62987ND
2017-03-22AD76321ND
2017-03-22AD76341ND
2017-03-22AD76323ND
2017-03-22AD76345ND
2017-04-03AD78053ND