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EWG's Tap Water Database — 2019 UPDATE

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1,2,4-Trichlorobenzene

Weirton Area Water Board

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND40ND
2014ND40ND
2015ND30ND
2016ND10ND
2017N/A00N/A

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
2012-04-16VOC_1204E71-05AND
2013-03-08VOC_1303915-04AND
2013-05-13VOC_1305I83-03AND
2013-08-22VOC_1308P42-01AND
2013-10-15VOC_1310J31-01AND
2014-01-29VOC_1402177-08AND
2014-04-16VOC_1404K60-02AND
2014-07-17VOC_1407N00-09AND
2014-10-21VOC_1410R55-06AND
2015-01-29VOC_1501U33-01AND
2015-03-26VOC_1503Y19-01AND
2015-03-31VOC_1504247-01AND
2016-02-241602W01-01AND