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EWG's Tap Water Database — 2019 UPDATE

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1,2,4-Trichlorobenzene

Exeter Water Department

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
2012ND20ND
2013ND20ND
2014ND20ND
2015ND30ND
2016ND50ND
2017ND20ND

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
2012-08-081208-00320-001ND
2012-11-071211-00136-001ND
2013-07-18122703.01ND
2013-10-09125385.02ND
2014-07-09133509.01ND
2014-10-09136708.02ND
2015-07-16145750.01ND
2015-09-09147823.01ND
2015-11-18150486.01ND
2016-01-13152193.01ND
2016-04-07154592.01ND
2016-07-13158246.01ND
2016-07-21158588.01ND
2016-10-04161298.01ND
2017-07-11170940.01ND
2017-10-03174234.01ND