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EWG's Tap Water Database — 2019 UPDATE

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Monochlorobenzene (chlorobenzene)

Lehigh County Authority Allentown Division

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND30ND
2015ND30ND
2016ND30ND
2017ND30ND

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
2012-04-12L4002369-3ND
2012-04-12L4002369-1ND
2012-04-12L4002369-2ND
2013-02-07L4430705-3ND
2013-02-07L4430705-1ND
2013-02-07L4430705-2ND
2014-06-1014052283-03ND
2014-06-1014052283-02ND
2014-06-1014052283-01ND
2015-02-1712434481ND
2015-02-1712434460ND
2015-02-1712434439ND
2016-02-1613903483ND
2016-02-1613903504ND
2016-02-1613903525ND
2017-03-2115835556ND
2017-03-2115835577ND
2017-03-2115835598ND