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EWG's Tap Water Database — 2019 UPDATE

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1,2,4-Trichlorobenzene

Pico WD

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

 

51

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND130ND
2013ND80ND
2014ND80ND
2015ND70ND
2016ND80ND
2017ND70ND

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
2012-03-139588-004-0925ND
2012-03-139588-006-0940ND
2012-03-139588-009-0950ND
2012-03-149588-002-0930ND
2012-03-149588-011-0945ND
2012-05-099588-002-0945ND
2012-08-179588-006-0914ND
2012-08-179588-011-0858ND
2012-08-179588-009-0927ND
2012-08-219588-004-0810ND
2012-12-129588-004-1132ND
2012-12-129588-009-0937ND
2012-12-129588-011-1019ND
2013-03-219588-009-0942ND
2013-03-219588-006-0930ND
2013-03-269588-011-0955ND
2013-03-269588-002-1040ND
2013-03-269588-004-1140ND
2013-06-269588-011-0900ND
2013-12-069588-011-1320ND
2013-12-139588-006-1015ND
2014-01-069588-011-0745ND
2014-03-209588-009-1008ND
2014-03-209588-002-0930ND
2014-03-209588-004-0936ND
2014-03-209588-006-1000ND
2014-06-209588-011-0950ND
2014-08-229588-011-1005ND
2014-10-239588-011-0940ND
2015-03-189588-004-0831ND
2015-03-189588-006-0819ND
2015-03-189588-009-0806ND
2015-03-189588-011-0755ND
2015-06-229588-011-0837ND
2015-08-269588-011-0957ND
2015-12-239588-011-0823ND
2016-02-259588-011-0800ND
2016-03-149588-009-0915ND
2016-03-239588-004-0802ND
2016-03-239588-006-0816ND
2016-05-099588-011-0828ND
2016-08-109588-011-0825ND
2016-11-309588-011-0800ND
2016-12-229588-011-0837ND
2017-02-239588-011-0840ND
2017-03-209588-009-0910ND
2017-03-209588-004-1000ND
2017-03-209588-006-0920ND
2017-05-089588-011-0815ND
2017-08-249588-011-0924ND
2017-11-229588-011-0850ND