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EWG's Tap Water Database — 2019 UPDATE

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1,2,4-Trichlorobenzene

Fort Bend County MUD 25

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND10ND
2015ND50ND
2016ND50ND
2017ND30ND

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
2012-03-20AB84532ND
2013-02-28AC11759ND
2014-05-16AC54455ND
2015-02-04AC79293ND
2015-02-04AC79295ND
2015-02-04AC79265ND
2015-02-04AC79289ND
2015-06-02AC94168ND
2016-01-19AD18648ND
2016-01-19AD18642ND
2016-01-19AD18622ND
2016-06-21AD41365ND
2016-08-02AD46709ND
2017-01-12AD64770ND
2017-01-12AD64784ND
2017-01-12AD64774ND