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EWG's Tap Water Database — 2019 UPDATE

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1,2,4-Trichlorobenzene

Aqua Pa Uwchlan

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND60ND
2014ND60ND
2015ND60ND
2016ND60ND
2017ND60ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 5 ppb

The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-06AD37757ND
2012-02-06AD37758ND
2012-02-23AD39504ND
2012-02-23AD39503ND
2012-02-29AD39501ND
2012-05-25AD49447ND
2013-02-05AD79498ND
2013-02-05AD79499ND
2013-02-20AD80828ND
2013-02-20AD80829ND
2013-03-05AD82342ND
2013-05-21AD90752ND
2014-02-06AE22430ND
2014-02-14AE22385ND
2014-02-14AE22387ND
2014-02-21AE23946ND
2014-02-21AE23943ND
2014-04-23AE29861ND
2015-02-0312395449ND
2015-02-0312395533ND
2015-02-0312395491ND
2015-02-0312395512ND
2015-02-0412395428ND
2015-02-0412395470ND
2016-01-2213746210ND
2016-01-2213746231ND
2016-01-2213746252ND
2016-01-2213746273ND
2016-02-1013864177ND
2016-02-1013864198ND
2017-03-2815787950ND
2017-03-2815787971ND
2017-04-1915928757ND
2017-04-1915928778ND
2017-04-2115928736ND
2017-06-2116249801ND