Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Water Works District #1 of Vermilion

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

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND20ND
2020ND60ND
2021N/A00N/A
2022ND10ND
2023ND60ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2019-06-1035474976001ND
2019-06-1035474976001ND
2020-06-1035556215001ND
2020-06-1035556215002ND
2020-06-1035556215003ND
2020-06-1035556215004ND
2020-10-0535583034001ND
2020-10-0535583034002ND
2022-07-2535735487001ND
2023-03-2735788777001ND
2023-03-2735788777002ND
2023-03-2735788779001ND
2023-03-2735788779002ND
2023-07-1035812353001ND
2023-07-1035812353002ND