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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichlorobenzene

Marco Rural Water Company

1,2,3-Trichlorobenzene is a solvent and an intermediate for chemical manufacturing that was used historically as an insecticide for termite control. The National Toxicology Program lists it as a "reasonably anticipated" human carcinogen.

 

10

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
2014ND20ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND80ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-04AD36307ND
2014-06-10AD41057ND
2019-12-02AE40915ND
2019-12-02AE40929ND
2019-12-03AE41076ND
2019-12-03AE41048ND
2019-12-03AE41049ND
2019-12-03AE41072ND
2019-12-03AE41074ND
2019-12-30AE42210ND