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EWG's Tap Water Database — 2021 UPDATE

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1,2,4-Trichlorobenzene

Sudbury Water District

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

MORE ABOUT THIS CONTAMINANT

 

105

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND200ND
2015ND160ND
2016ND130ND
2017ND170ND
2018ND200ND
2019ND190ND

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 Result
2014-01-07ND
2014-01-07ND
2014-01-07ND
2014-01-07ND
2014-05-06ND
2014-05-06ND
2014-05-06ND
2014-05-06ND
2014-07-08ND
2014-07-08ND
2014-07-08ND
2014-07-08ND
2014-07-08ND
2014-07-08ND
2014-07-23ND
2014-07-23ND
2014-10-21ND
2014-10-21ND
2014-10-21ND
2014-10-21ND
2015-01-06ND
2015-01-06ND
2015-01-06ND
2015-01-06ND
2015-04-16ND
2015-04-22ND
2015-04-22ND
2015-04-22ND
2015-04-22ND
2015-07-07ND
2015-07-07ND
2015-07-07ND
2015-07-07ND
2015-07-07ND
2015-07-07ND
2015-10-06ND
2016-01-05ND
2016-03-15ND
2016-03-15ND
2016-04-06ND
2016-04-06ND
2016-07-12ND
2016-07-12ND
2016-07-12ND
2016-07-12ND
2016-07-12ND
2016-07-12ND
2016-10-04ND
2016-10-04ND
2017-01-10ND
2017-01-10ND
2017-01-10ND
2017-01-10ND
2017-04-04ND
2017-04-04ND
2017-04-04ND
2017-07-11ND
2017-07-11ND
2017-07-11ND
2017-07-11ND
2017-07-11ND
2017-07-11ND
2017-10-03ND
2017-10-03ND
2017-10-03ND
2017-10-03ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-07-10ND
2018-10-10ND
2018-10-10ND
2018-10-10ND
2018-10-10ND
2019-01-08ND
2019-01-08ND
2019-01-08ND
2019-04-02ND
2019-04-02ND
2019-04-02ND
2019-07-02ND
2019-07-02ND
2019-07-02ND
2019-07-02ND
2019-07-02ND
2019-07-02ND
2019-07-02ND
2019-07-02ND
2019-07-16ND
2019-10-08ND
2019-10-08ND
2019-10-08ND
2019-10-08ND