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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Warminster Municipal 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

 

55

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
2014ND180ND
2015ND130ND
2016ND150ND
2017ND10ND
2018ND40ND
2019ND40ND

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
2014-01-071066362002ND
2014-01-071066362001ND
2014-01-071066362017ND
2014-01-071066362016ND
2014-01-071066362015ND
2014-01-071066362014ND
2014-01-071066362013ND
2014-01-071066362012ND
2014-01-071066362011ND
2014-01-071066362010ND
2014-01-071066362009ND
2014-01-071066362007ND
2014-01-071066362006ND
2014-01-071066362005ND
2014-01-071066362004ND
2014-01-071066362003ND
2014-01-171068194001ND
2014-01-271069260001ND
2015-01-0512160906ND
2015-01-0812273819ND
2015-01-0812273798ND
2015-01-0812273672ND
2015-01-0812273777ND
2015-01-0812273756ND
2015-01-0812273735ND
2015-01-0812273693ND
2015-01-0812273651ND
2015-01-0812273630ND
2015-01-0812273609ND
2015-01-0812273588ND
2015-01-0812273714ND
2016-01-1113740427ND
2016-01-1113740511ND
2016-01-1113740490ND
2016-01-1113740385ND
2016-01-1113740469ND
2016-01-1113740532ND
2016-01-1113740448ND
2016-01-1113740406ND
2016-01-1113740364ND
2016-01-1113740343ND
2016-01-1113740322ND
2016-01-1113740301ND
2016-01-1113740280ND
2016-01-1113740553ND
2016-03-0313857817ND
2017-03-2916865859ND
2018-01-032286581002ND
2018-05-028012263-03ND
2018-05-028012263-01ND
2018-05-028012263-02ND
2019-03-293025252001ND
2019-03-293025252003ND
2019-03-293025252005ND
2019-09-043056055001ND